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Bu çalışmada öğrencilerin öğrenmiş oldukları dilbilgisel yapıyı nasıl işlevsel hale getireceği, pasif halde bulunan dilbilgisel yapının nasıl aktif hale getirileceği teorik ve deneysel bağlamda incelenmiştir. Tek tip pasif alıştırmaların yerine aktif alıştırma tiplerinden seçenek sunularak öğrencilerin bu bilgiyi, dört beceriye aktarımı mümkün kılınmaya çalışılmıştır. Çalışmada dört beceri birbirinden soyutlanmış biçimde değil bütünleştirici şekilde ele alınmıştır.
Bu çalışmada deneysel yöntemin 'kontrol gruplu öntest ve sontest deney' deseni kullanılmıştır. Hem nitel hem de nicel boyutları içeren karma bir çalışmadır. Çalışmada eylemsel ve üretimsel yöntemlerin kullanıldığı deney grubundaki öntest ve sontest puanları arasındaki başarı farkının; geleneksel yöntemin uygulandığı kontrol grubundaki başarı farkından anlamlı derecede fazla olduğu görülmüştür (F(1,48)=366,149; p<0,001). Buradan hareketle deney grubundaki öğrencilerin daha fazla ilerleme gösterdiği ve başarılı oldukları sonucuna varılmıştır.
Dilbilgisi dersinin iletişimsel yetinin geliştirilmesi için bir araç olduğu görüşü deneysel ve uygulamalı olarak araştırılmıştır. Yaratıcı, eyleme ve öğrencilerin üretimine dayalı bir dilbilgisi dersi geliştirilerek geleneksel dilbilgisi dersine alternatif ders modelleri geliştirilmiştir.
Jedes literarische Werk wird durch seinen Titel identifiziert. Buchtitel sollen das Interesse des Lesers wecken und ihn zum Lesen des Werkes anregen. Sie sind wohl meist kurz, geben dennoch einen ersten Hinweis auf den Inhalt und wirken rezeptionssteuernd. Bekannt ist, dass literarische Werke in andere Sprachen nicht selten unter einem anderen Titel oder unter verschiedenen Titeln erscheinen. Ein Beispiel dafür ist Thomas Manns Erzählung Die Betrogene (1953). Sie ist zuerst von Kâmuran Şipal fast 'wortgetreu' unter dem Titel Aldatılmış Kadın [Die Betrogene] (1999) und sodann davon abweichend von Esen Tezel unter dem neuen Titel Aldanan Kadın [wörtlich: Die Sichtäuschende] (2012) ins Türkische übersetzt worden. Im Allgemeinen wird die nichtwortgetreue Übersetzung von Buchtiteln beanstandet und als ein Problem gesehen, was nach translationswissenschaftlich funktionalistischer Auffassung einer differenzierten Betrachtung bedarf. Vorliegende Fallstudie behandelt diverse translationswissenschaftliche Aspekte und Faktoren der unterschiedlichen Betitelungen von Kâmuran Şipal und Esen Tezel und leistet damit einen Beitrag zur Problematik des Übersetzens von literarischen Titeln.
Abnormitäten oder Analogien bei Übersetzungen deutscher und türkischer Nebensatzkonstruktionen
(2016)
Jede Sprache hat ihre eigene grammatikalische Struktur und dementsprechend unterscheidet sich auch der Aufbau der Sätze. Was in der Grammatik als ein Teilsatz bezeichnet wird, ist ein Nebensatz, welcher in jeder Sprache seine eigene Struktur besitzt. Diese strukturellen Merkmale, Unterschiede und Ähnlichkeiten im Deutschen und im Türkischen werden in dieser Arbeit dargestellt und miteinander verglichen. In dieser Arbeit werden die deutschen Nebensatzarten samt den dazugehörigen Beispielen dargestellt. Nach denselben Gesichtspunkten werden auch die jeweiligen türkischen Übersetzungen wiedergegeben. Diese Aufteilung soll als Mittel zum Zweck der übersichtlicheren Darlegung der Nebensätze und zur Erklärung der Übersetzungsmöglichkeiten dienen. Es ist klar, dass eine konkrete Übersetzung mehr oder weniger angleichend bzw. mehr oder weniger verfremdend erscheint, welche auf Varietät der Zielsprache zurückzuführen ist. Die Gegenüberstellung zwischen von Grund aus unterschiedlichen Sprachen scheint in erster Linie in Bezug auf den Wortschatz (z. B. kulturspezifische Begriffe) und Redeweisen getroffen worden zu sein. Sie ist jedoch auch für den grammatikalischen Bereich relevant. Nach diesem Exkurs werden einige deutsche Märchen mit ihren türkischen Übersetzungen verglichen und analysiert
Çeviri eyleminin yüzyıllarla ifade edilen ve Milattan önceki devirlere kadar uzanan tarihine karşın çeviri etkinliğinin öğretilebilir bir olgu olarak ele alınması, bilindiği üzere yeni bir konudur. Bu öğretme işinin eğitme biçimiyle ele alınıp üniversiter eğitim modelleri ile ele alınması ise, görece çok daha yeni bir görüngüdür. Türkiye'de de son birkaç on yıldır çeviri eğitimi veren akademik birimlerin varlığı ile konu tamamı ile akademik mecraya taşınmış ve tartışılmaya başlanmıştır. Bu tartışmalar ise, akademik çeviri eğitimi yoluyla oluşturulması ve/veya geliştirilmesi amaçlanan 'çeviri edinci' kavramı üzerinden yürütülmektedir. Çeviri edinci, akademik çeviri eğitimi açısından merkezi bir konu olarak değerlendirilebilir. Çünkü 'çeviri edinci'nin nasıl tanımlandığı, verilen eğitimin içeriğini ve usulünü belirleyebilecek denli temel bir sorgulamadır. Bu çalışmada 'çeviri edinci' kavramı tanımlanmaya çalışılacak, buradan hareketle akademik çeviri eğitiminin koşulları ve çevirmenin öznitelikleri içeriklendirilmeye çalışılacaktır.
Chronic kidney disease and diabetes mellitus are associated with extensive media calcification, which leads to increased cardiovascular morbidity and mortality. Here, we investigated the role of autophagy in the pathogenesis of uremic vascular media calcification. DBA/2 mice were fed with high-phosphate diet (HPD) in order to cause vascular calcification. DBA/2 mice on standard chow diet were used as control. In parallel, autophagy and its response to rapamycin, 3-methyladenine (3-MA), and bafilomycin were studied in an in vitro model using mouse vascular smooth muscle cells (MOVAS). DBA/2 mice on HPD developed severe vascular media calcification, which is mirrored in vitro by culturing MOVAS under calcifying conditions. Both, in vitro and in vivo, autophagy significantly increased in MOVAS under calcifying conditions and in aortas of HPD mice, respectively. Histologically, autophagy was located to the aortic Tunica media, but also vascular endothelial cells, and was found to continuously increase during HPD treatment. 3-MA as well as bafilomycin blocked autophagy in MOVAS and increased calcification. Vice versa, rapamycin treatment further increased autophagy and resulted in a significant decrease of vascular calcification in vitro and in vivo. Rapamycin reduced Runx2 transcription levels in aortas and MOVAS to control levels, whereas it increased α-smooth muscle actin and Sm22α transcription in MOVAS to control levels. Furthermore, rapamycin-treated HPD mice survived significantly longer compared to HPD controls. These findings indicate that autophagy is an endogenous response of vascular smooth muscle cells (VSMC) to protect from calcification in uremia. Induction of autophagy by rapamycin protects cells and mice from uremic media calcification possibly by inhibiting osteogenic transdifferentiation of VSMC.
Rapid immune reconstitution (IR) following stem cell transplantation (SCT) is essential for a favorable outcome. The optimization of graft composition should not only enable a sufficient IR but also improve graft vs. leukemia/tumor effects, overcome infectious complications and, finally, improve patient survival. Especially in haploidentical SCT, the optimization of graft composition is controversial. Therefore, we analyzed the influence of graft manipulation on IR in 40 patients with acute leukemia in remission. We examined the cell recovery post haploidentical SCT in patients receiving a CD34+-selected or CD3/CD19-depleted graft, considering the applied conditioning regimen. We used joint model analysis for overall survival (OS) and analyzed the dynamics of age-adjusted leukocytes; lymphocytes; monocytes; CD3+, CD3+CD4+, and CD3+CD8+ T cells; natural killer (NK) cells; and B cells over the course of time after SCT. Lymphocytes, NK cells, and B cells expanded more rapidly after SCT with CD34+-selected grafts (P = 0.036, P = 0.002, and P < 0.001, respectively). Contrarily, CD3+CD4+ helper T cells recovered delayer in the CD34 selected group (P = 0.026). Furthermore, reduced intensity conditioning facilitated faster immune recovery of lymphocytes and T cells and their subsets (P < 0.001). However, the immune recovery for NK cells and B cells was comparable for patients who received reduced-intensity or full preparative regimens. Dynamics of all cell types had a significant influence on OS, which did not differ between patients receiving CD34+-selected and those receiving CD3/CD19-depleted grafts. In conclusion, cell reconstitution dynamics showed complex diversity with regard to the graft manufacturing procedure and conditioning regimen.
Background: Scientifically evaluated cognitive intervention programs are essential to meet the demands of our increasingly aging society. Currently, one of the “hottest” topics in the field is the improvement of working memory function and its potential impact on overall cognition. The present study evaluated the efficacy of WOME (WOrking MEmory), a theory-based working memory training program, in a double-blind, placebo-controlled, and randomized controlled trial (www.drks.de, DRKS00013162).
Methods: N = 60 healthy older adults were allocated to (1) the WOME intervention, (2) an active low-level intervention, or (3) a passive control group. Overall, the intervention groups practiced twelve sessions of 45 min within 4 weeks of their respective training. Transfer effects were measured via an extensive battery of neuropsychological tests and questionnaires both pre-/post-training and at a 3-month follow-up.
Results: WOME led to a significant improvement in working memory function, demonstrated on a non-trained near transfer task and on two different composite scores with moderate to large effect sizes. In addition, we found some indication of relevant impact on everyday life. The effects were short-term rather than stable, being substantially diminished at follow-up with only little evidence suggesting long-term maintenance. No transfer effects on other cognitive functions were observed.
Conclusion: WOME is an appropriate and efficient intervention specifically targeting the working memory system in healthy older adults.
Trial Registration: German Clinical Trials Register (DRKS), Identifier: DRKS00013162.
Im Rahmen dieser Studie wurden jeweils ein türkischer und deutscher Gebrauchs-und Informationstext und einige Sätze von literarischen Texten mit Hilfe der Online-Übersetzungsprogramme "google translate", "Babylon", "Almanca Sözlük" und "İngilizceturkce.gen" übersetzt und überprüft, ob, wenn man die Texte in der Zielsprache mit den Ausgangstexten vergleicht, syntaktische und semantische Fehler aufträten und welche der Online-Übersetzungsprogramme beim Übersetzen zuverlässig sind.
Die Daten haben dargelegt, das bei der Sprachkombination Deutsch-Türkisch/Türkisch-Deutsch Gebrauchstexte und Informationstexte, auch wenn sie einige syntaktische und semantische Fehler beinhalten, im Ganzen und Großen in die Zielsprache richtig transferiert werden, wobei literarische Texte einen höheren Anteil an Fehlern beinhalten. Laut der Untersuchungsergebnisse sollten die übersetzten Texte zur Sicherheit immer von jemand Fachkundigem gelesen werden, da beim Übersetzen von ganzen Sätzen bzw. Textpassagen aus der türkischen Sprache ins Deutsche und umgekehrt aus der deutschen Sprache ins Türkische der Sinn nicht immer erfasst wird.
Zur Kontrolle könnten außerdem noch übersetzte Passagen mit verschiedenen Programmen stückweise mehrmals oder in eine Drittsprache z. B. ins Englische übersetzt werden. Bei feststehenden Aussagen bzw. Ausdrücken hingegen ist ein hohes Maß an Aufmerksamkeit erforderlich.
Nucleation and growth of aerosol particles from atmospheric vapors constitutes a major source of global cloud condensation nuclei (CCN). The fraction of newly formed particles that reaches CCN sizes is highly sensitive to particle growth rates, especially for particle sizes <10 nm, where coagulation losses to larger aerosol particles are greatest. Recent results show that some oxidation products from biogenic volatile organic compounds are major contributors to particle formation and initial growth. However, whether oxidized organics contribute to particle growth over the broad span of tropospheric temperatures remains an open question, and quantitative mass balance for organic growth has yet to be demonstrated at any temperature. Here, in experiments performed under atmospheric conditions in the Cosmics Leaving Outdoor Droplets (CLOUD) chamber at the European Organization for Nuclear Research (CERN), we show that rapid growth of organic particles occurs over the range from −25 ∘C to 25 ∘C. The lower extent of autoxidation at reduced temperatures is compensated by the decreased volatility of all oxidized molecules. This is confirmed by particle-phase composition measurements, showing enhanced uptake of relatively less oxygenated products at cold temperatures. We can reproduce the measured growth rates using an aerosol growth model based entirely on the experimentally measured gas-phase spectra of oxidized organic molecules obtained from two complementary mass spectrometers. We show that the growth rates are sensitive to particle curvature, explaining widespread atmospheric observations that particle growth rates increase in the single-digit-nanometer size range. Our results demonstrate that organic vapors can contribute to particle growth over a wide range of tropospheric temperatures from molecular cluster sizes onward.
An aerosol foam formulation of a once-daily, fixed-dose combination of a synthetic vitamin D3 analog/synthetic corticosteroid (calcipotriol [Cal] 50 µg/g and betamethasone dipropionate [BD] 0.5 mg/g) has recently been introduced for the topical treatment of plaque psoriasis in adults. Data from several sources – randomized controlled trials, case reports (as highlighted in this review), and real-world evidence (RWE) – underscore the considerable and rapid clinical response, effectiveness, and favorable safety and tolerability of Cal/BD aerosol foam in mild-to-moderate psoriatic patients previously treated with class 3 or 4 topical corticosteroids, in patients unsatisfied with ongoing phototherapy in combination with topical therapy and in patients with moderate-to-severe psoriasis. In addition, our case series, considered together with other RWE, highlights that Cal/BD aerosol foam is more effective and with greater levels of patient preference and acceptability than comparator preparations. Thus, Cal/BD aerosol foam offers several treatment advantages, including relief of itch, and is an appropriate first-line topical therapy for consideration in patients with psoriasis of any severity.
Damaged mitochondria are selectively eliminated by mitophagy. Parkin and PINK1, gene products mutated in familial Parkinson’s disease, play essential roles in mitophagy through ubiquitination of mitochondria. Cargo ubiquitination by E3 ubiquitin ligase Parkin is important to trigger selective autophagy. Although autophagy receptors recruit LC3-labeled autophagic membranes onto damaged mitochondria, how other essential autophagy units such as ATG9A-integrated vesicles are recruited remains unclear. Here, using mammalian cultured cells, we demonstrate that RABGEF1, the upstream factor of the endosomal Rab GTPase cascade, is recruited to damaged mitochondria via ubiquitin binding downstream of Parkin. RABGEF1 directs the downstream Rab proteins, RAB5 and RAB7A, to damaged mitochondria, whose associations are further regulated by mitochondrial Rab-GAPs. Furthermore, depletion of RAB7A inhibited ATG9A vesicle assembly and subsequent encapsulation of the mitochondria by autophagic membranes. These results strongly suggest that endosomal Rab cycles on damaged mitochondria are a crucial regulator of mitophagy through assembling ATG9A vesicles.
Background: There is no international consensus up to which age women with a diagnosis of triple-negative breast cancer (TNBC) and no family history of breast or ovarian cancer should be offered genetic testing for germline BRCA1 and BRCA2 (gBRCA) mutations. Here, we explored the association of age at TNBC diagnosis with the prevalence of pathogenic gBRCA mutations in this patient group.
Methods: The study comprised 802 women (median age 40 years, range 19–76) with oestrogen receptor, progesterone receptor, and human epidermal growth factor receptor type 2 negative breast cancers, who had no relatives with breast or ovarian cancer. All women were tested for pathogenic gBRCA mutations. Logistic regression analysis was used to explore the association between age at TNBC diagnosis and the presence of a pathogenic gBRCA mutation.
Results: A total of 127 women with TNBC (15.8%) were gBRCA mutation carriers (BRCA1: n = 118, 14.7%; BRCA2: n = 9, 1.1%). The mutation prevalence was 32.9% in the age group 20–29 years compared to 6.9% in the age group 60–69 years. Logistic regression analysis revealed a significant increase of mutation frequency with decreasing age at diagnosis (odds ratio 1.87 per 10 year decrease, 95%CI 1.50–2.32, p < 0.001). gBRCA mutation risk was predicted to be > 10% for women diagnosed below approximately 50 years.
Conclusions: Based on the general understanding that a heterozygous mutation probability of 10% or greater justifies gBRCA mutation screening, women with TNBC diagnosed before the age of 50 years and no familial history of breast and ovarian cancer should be tested for gBRCA mutations. In Germany, this would concern approximately 880 women with newly diagnosed TNBC per year, of whom approximately 150 are expected to be identified as carriers of a pathogenic gBRCA mutation.
Georg Forster took part in Captain Cook's second journey of the world (1772) with his father at the age of 17. After his return, he published his impressions and observations in a comprehensive book. The book contains not only the observations on the nature of the places they visited, but also numerous philosophical notes on the culture of the people. A closer reading of these observations shows that Forster developed a method according to which he assessed the foreign cultures. The criteria of this method enables Forster even to understand and objectively assess cannibalism in New Zealand. Forster developed this method after questioning the conditions which can have a significant effect on the origin and the development of a particular culture in a particular space. His observations on the different cultures and the comparison of them with the Western culture which brought him to the conclusion that the geographical location, in which the human being lives, has a great effect on human existence. The aim of this paper is to show how Forster perceives the foreign culture and how he deals with it.
Background: The city of Wrocław in Poland represents one of Central Europeans oldest capitals of science with numerous Nobel laureates. Due to a long history of political suppressions with Nazi Germany and Communism from 1933 until 1989, its scientific community was suppressed for more than half a century.
Methods: The present study assessed scientific activities in the field of social and neighbouring sciences using density equalizing mapping. On the basis of the NewQIS (New Quality and Quantity Indices in Science) platform and the Social Sciences Citation Index (SSCI) of the Web of Science database, a total of 1787 articles originating from Wrocław were identified between 1966 and 2017.
Results: In total, 549 research collaborations of Wrocław with 96 different countries were present (30.7%). Among the 107 research areas the highest activity was found for the field of Business and Economics with n = 272 articles (average citation rate (AVR) of 12.54), followed by Psychology (n = 252 articles, AVR = 9.06), Psychiatry (n = 205 articles, AVR = 4.74) and Public, Environmental and Occupational Health (n = 145 articles, AVR = 7.96). The highest AVR was found for Operations Research (25.36 with n = 87 articles). Density equalizing mapping procedures revealed a global pattern of social sciences research collaborations with scientists from Germany, the UK and the US as the primary cooperating partner of Wrocław. The different countries had major differences in the area of research collaborations.
Conclusions: This is the first study that depicts the global network of Wrocław scientific activities in the field of social sciences. The exorbitant increase in research activity from 2006 onwards can lead to the assumption that Wrocław social sciences encounter a fruitful future.
Franz Kafka'nın Dava'sının Melih Cevdet Anday'ın İsa'nın Güncesi adlı romanına etkisi açık olmakla birlikte, incelenen romanlar arasındaki ilişki, basit bir esinlenmenin ötesinde, eserlerin kaleme alındığı dönemlerdeki toplumsal ve hukuki sorunların özüne ilişkin benzerlikle dikkat çekmektedir. Romanların karşılaştırmalı analizi, modernitenin, toplumsal farklılıklar ve iki roman arasındaki altmış yıla rağmen, değişik kültürlerde hukuk felsefesine ilişkin benzer sorunlara yol açtığını göstermektedir. Ulus devletlerinin kurulması ve demokrasinin gelişmesiyle ortaya çıkan kriz kalıcı olmuş, dünya savaşları ve askeri darbeler arasında olağan hâle gelen olağanüstü hâl modern dönemin hukuki durumu hâline gelmiştir.
Determining the cell fate and the distribution of mesenchymal stromal/stem cells (MSCs) after transplantation are essential parts of characterizing the mechanisms of action and biosafety profile of stem cell therapy. Many recent studies have shown that MSCs migrate into injured tissues, but are only detectable at extremely low frequencies. We investigated the cell fate of MSCs after transplantation in an acute kidney injury (AKI) mouse model using in vivo bioluminescence imaging (BLI) and subsequent verification of cell migration using quantitative real-time polymerase chain reaction (qRT-PCR). The AKI was induced by a single injection of cisplatin (8 or 12 mg/kg). One day later, adipose-derived mesenchymal stromal/stem cells isolated from luciferase transgenic mice (Luc+-mASCs, 5 × 105) were intravenously transplanted. Migration kinetics of the cells was monitored using BLI on day 1, 3, and 6, and finally via quantitative real-time PCR at the endpoint on day 6. Using BLI, infused Luc+-mASCs could only be detected in the lungs, but not in the kidneys. In contrast, PCR endpoint analysis revealed that Luc-specific mRNA could be detected in injured renal tissue; compared to the control group, the induction was 2.2-fold higher for the 8 mg/kg cisplatin group (p < 0.05), respectively 6.1-fold for the 12 mg/kg cisplatin group (p < 0.001). In conclusion, our study demonstrated that Luc-based real-time PCR rather than BLI is likely to be a better tool for cell tracking after transplantation in models such as cisplatin-induced AKI.
Subduction zone magmas are more oxidised on eruption than those at mid-ocean ridges. This is attributed either to oxidising components, derived from subducted lithosphere (slab) and added to the mantle wedge, or to oxidation processes occurring during magma ascent via differentiation. Here we provide direct evidence for contributions of oxidising slab agents to melts trapped in the sub-arc mantle. Measurements of sulfur (S) valence state in sub-arc mantle peridotites identify sulfate, both as crystalline anhydrite (CaSO4) and dissolved SO42− in spinel-hosted glass (formerly melt) inclusions. Copper-rich sulfide precipitates in the inclusions and increased Fe3+/∑Fe in spinel record a S6+–Fe2+ redox coupling during melt percolation through the sub-arc mantle. Sulfate-rich glass inclusions exhibit high U/Th, Pb/Ce, Sr/Nd and δ34S (+ 7 to + 11‰), indicating the involvement of dehydration products of serpentinised slab rocks in their parental melt sources. These observations provide a link between liberated slab components and oxidised arc magmas.
GD2-directed immunotherapies improve survival of high-risk neuroblastoma (NB) patients (pts). Treatment with chimeric anti-GD2 antibodies (Ab), such as ch14.18, can induce development of human anti-chimeric Ab (HACA). Here, we report HACA effects on ch14.18/CHO pharmacokinetics, pharmacodynamics and pain intensity in pts treated by long-term infusion (LTI) of ch14.18/CHO combined with IL-2. 124 pts received up to 5 cycles of ch14.18/CHO 10 days (d) infusion (10 mg/m2/d; d8–18) combined with s.c. IL-2 (6 × 106 IU/m2/d; d1–5, d8–12). HACA, treatment toxicity, ch14.18/CHO levels, Ab-dependent cellular- (ADCC) and complement-dependent cytotoxicity (CDC) were assessed using respective validated assays. HACA-negative pts showed a steadily decreased pain in cycle 1 (74% pts without morphine by d5 of LTI) with further decrease in subsequent cycles. Ch14.18/CHO peak concentrations of 11.26 ± 0.50 µg/mL found in cycle 1 were further elevated in subsequent cycles and resulted in robust GD2-specific CDC and ADCC. Development of HACA (21% of pts) resulted in strong reduction of ch14.18/CHO levels, abrogated CDC and ADCC. Surprisingly, no difference in pain toxicity between HACA-positive and -negative pts was found. In conclusion, ch14.18/CHO LTI combined with IL-2 results in strong activation of Ab effector functions. Importantly, HACA response abrogated CDC but did not affect pain intensity indicating CDC-independent pain induction.
Introduction: Hip fracture surgery is associated with high in-hospital and 30-day mortality rates and serious adverse patient outcomes. Evidence from randomised controlled trials regarding effectiveness of spinal versus general anaesthesia on patient-centred outcomes after hip fracture surgery is sparse.
Methods and analysis: The iHOPE study is a pragmatic national, multicentre, randomised controlled, open-label clinical trial with a two-arm parallel group design. In total, 1032 patients with hip fracture (>65 years) will be randomised in an intended 1:1 allocation ratio to receive spinal anaesthesia (n=516) or general anaesthesia (n=516). Outcome assessment will occur in a blinded manner after hospital discharge and inhospital. The primary endpoint will be assessed by telephone interview and comprises the time to the first occurring event of the binary composite outcome of all-cause mortality or new-onset serious cardiac and pulmonary complications within 30 postoperative days. In-hospital secondary endpoints, assessed via in-person interviews and medical record review, include mortality, perioperative adverse events, delirium, satisfaction, walking independently, length of hospital stay and discharge destination. Telephone interviews will be performed for long-term endpoints (all-cause mortality, independence in walking, chronic pain, ability to return home cognitive function and overall health and disability) at postoperative day 30±3, 180±45 and 365±60.
Ethics and dissemination: iHOPE has been approved by the leading Ethics Committee of the Medical Faculty of the RWTH Aachen University on 14 March 2018 (EK 022/18). Approval from all other involved local Ethical Committees was subsequently requested and obtained. Study started in April 2018 with a total recruitment period of 24 months. iHOPE will be disseminated via presentations at national and international scientific meetings or conferences and publication in peer-reviewed international scientific journals.
Trial registration number: DRKS00013644; Pre-results
Isolated complex I deficiency is a common biochemical phenotype observed in pediatric mitochondrial disease and often arises as a consequence of pathogenic variants affecting one of the ∼65 genes encoding the complex I structural subunits or assembly factors. Such genetic heterogeneity means that application of next-generation sequencing technologies to undiagnosed cohorts has been a catalyst for genetic diagnosis and gene-disease associations. We describe the clinical and molecular genetic investigations of four unrelated children who presented with neuroradiological findings and/or elevated lactate levels, highly suggestive of an underlying mitochondrial diagnosis. Next-generation sequencing identified bi-allelic variants in NDUFA6, encoding a 15 kDa LYR-motif-containing complex I subunit that forms part of the Q-module. Functional investigations using subjects’ fibroblast cell lines demonstrated complex I assembly defects, which were characterized in detail by mass-spectrometry-based complexome profiling. This confirmed a marked reduction in incorporated NDUFA6 and a concomitant reduction in other Q-module subunits, including NDUFAB1, NDUFA7, and NDUFA12. Lentiviral transduction of subjects’ fibroblasts showed normalization of complex I. These data also support supercomplex formation, whereby the ∼830 kDa complex I intermediate (consisting of the P- and Q-modules) is in complex with assembled complex III and IV holoenzymes despite lacking the N-module. Interestingly, RNA-sequencing data provided evidence that the consensus RefSeq accession number does not correspond to the predominant transcript in clinically relevant tissues, prompting revision of the NDUFA6 RefSeq transcript and highlighting not only the importance of thorough variant interpretation but also the assessment of appropriate transcripts for analysis.
Aims: The ILUVIEN Registry Safety Study is an ongoing, multicentre, open-label, observational study collecting real-world data on the safety and effectiveness of the 0.2 µg/day fluocinolone acetonide (FAc) implant in patients treated according to the European label requirements.
Methods: Patients included in this analysis were treated for the licensed indication of chronic diabetic macular oedema (cDMO; that is, DMO that persists or recurs despite treatment). Data presented in the current analysis were collected from patient records up to 6 March 2017. Visual acuity (VA) data, including mean change in VA over time and at last observation, intraocular pressure (IOP) over the course of the study, IOP events, use of IOP-lowering therapy and cup:disc ratio were analysed. Information on additional DMO treatments post-FAc implant was also captured.
Results: Five hundred and sixty-three patients (593 eyes) were enrolled on the study. Mean IOP for the overall population remained within the normal range throughout follow-up and 76.7% of patients did not require IOP-lowering therapy following treatment with the FAc implant. Sixty-nine per cent of eyes did not require additional DMO treatments. Mean VA in the overall population increased from 51.9 letters at baseline to 55.6 letters at month 12, with a significant increase of 2.9 letters at last observation. Patients with short-term cDMO experienced greater VA gains than those with long-term cDMO.
Conclusions: The results of this analysis are comparable with those of other studies, including the Fluocinolone Acetate for Macular Edema study. The study reinforces the good safety and effectiveness profile of FAc, and demonstrates the benefit of early FAc treatment.
To crack the neural code and read out the information neural spikes convey, it is essential to understand how the information is coded and how much of it is available for decoding. To this end, it is indispensable to derive from first principles a minimal set of spike features containing the complete information content of a neuron. Here we present such a complete set of coding features. We show that temporal pairwise spike correlations fully determine the information conveyed by a single spiking neuron with finite temporal memory and stationary spike statistics. We reveal that interspike interval temporal correlations, which are often neglected, can significantly change the total information. Our findings provide a conceptual link between numerous disparate observations and recommend shifting the focus of future studies from addressing firing rates to addressing pairwise spike correlation functions as the primary determinants of neural information.
Autophagy acts through TRAF3 and RELB to regulate gene expression via antagonism of SMAD proteins
(2017)
Macroautophagy can regulate cell signalling and tumorigenesis via elusive molecular mechanisms. We establish a RAS mutant cancer cell model where the autophagy gene ATG5 is dispensable in A549 cells in vitro, yet promotes tumorigenesis in mice. ATG5 represses transcriptional activation by the TGFβ-SMAD gene regulatory pathway. However, autophagy does not terminate cytosolic signal transduction by TGFβ. Instead, we use proteomics to identify selective degradation of the signalling scaffold TRAF3. TRAF3 autophagy is driven by RAS and results in activation of the NF-κB family member RELB. We show that RELB represses TGFβ target promoters independently of DNA binding at NF-κB recognition sequences, instead binding with SMAD family member(s) at SMAD-response elements. Thus, autophagy antagonises TGFβ gene expression. Finally, autophagy-deficient A549 cells regain tumorigenicity upon SMAD4 knockdown. Thus, at least in this setting, a physiologic function for autophagic regulation of gene expression is tumour growth.
Peter Weiss'ın Direnmenin Estetiği romanı tematik kurgusu içinde geçmişteki direnişleri belgeleyen sanat ve edebiyat eserlerini yeniden yorumlayan bir çizgi izlemektedir. Sosyalizmin pratiklerini içeriden eleştiren bu roman sosyalist gerçekçiliği de konu etmektedir. Bu kapsamda işçi perspektifinden yazılmış bir roman olan Klaus Neukrantz'ın Wedding Barikatları ile - sosyalist gerçekçilik çizgisinin dekadan (yozlaşmış) yazar kabul ettiği - Franz Kafka'nın Şato romanı arasında bir yakınlık ilişkisi kurmakta, Şato için 'işçi sınıfının romanı' ifadesini kullanmaktadır. Bu bağlamda Peter Weiss'ın sosyalist gerçekçiliği nasıl yorumladığı, sosyalist iktidarların sanat ve edebiyat üzerindeki denetimlerine itiraz etmesine rağmen sosyalist gerçekçilikte hangi değeri gördüğü ve Kafka’nın Şato romanına 'işçi sınıfının romanı' derken nasıl bir bağlantı kurduğu çarpıcı bir soru haline gelmektedir.
Bu makale, adı geçen iki eserin özelliklerini ve düzen karşısındaki konumlanmalarını karşılaştırmalı olarak incelemektedir; Direnmenin Estetiği'nde bu iki romanla ilgili bölümlerde, romanın genel kurgusu ve yaklaşımı dikkate alınarak değerlendirilmektedir. Bu incelemeyle, Peter Weiss'ın sosyalist gerçekçiliğe bakışındaki özgünlüğü ve bu bağlamda nasıl bir Kafka yorumu yaptığını göstermek amaçlanıyor. İncelemenin vardığı sonuç: Peter Weiss; Kafka'nın, mücadelenin hedefini gösteren sosyalist gerçekçiliğin eksik bıraktığı şeyi yaptığını, yani ezilenlerin kendi içsel yaşantılarını bulmalarını sağladığını düşünmektedir. Yine Direnmenin Estetiği'nde izlerine rastlandığı gibi, Peter Weiss hayatının önemli bir bölümünde kendini Kafka’nın dünyasında hissetmiştir. Bu da Kafka'yı Peter Weiss için önemli kılan bir başka unsurdur. Bu anlamda Direnmenin Estetiği romanı Franz Kafka, Klaus Neukrantz ve Peter Weiss'ın ortak noktalarının izini süren, üç kurgusal metnin iç içe geçtiği bir üst metin olarak görülebilir.
Die aktuellen Ereignisse in Europa und die Migrationskrise bewegen die ganze Welt. Mit diesem Thema beschäftigte sich die internationale Konferenz, die im Rahmen des europäischen Projekts "My!Europe" der Sonnenberg-Kreis der Tschechischen Republik in Zusammenarbeit mit dem Lehrstuhl für Fremdsprachen der Philosophischen Fakultät der Universität Pardubice von 7.- 8. April 2016 veranstaltete. Am akademischen Boden der ostböhmischen Universität trafen sich 130 Fachleute, Interessenten, Studenten und Schüler.
Das wissenschaftliche Interesse auf dem Feld der Germanistik ist in den letzten Jahren in Rumänien, besonders nach der blutigen und gewaltsamen Wende, stark gestiegen. Die Germanistikabteilung der Philologischen Fakultät in Kronstadt/Braşov veranstaltete in Zusammenarbeit mit der Gesellschaft der Germanisten Rumäniens [GGR] (Zweigstelle Kronstadt) zwischen dem 07. - 09. April 2016 ihre XIX. Internationale Tagung zum Thema Konstruktionen von Männlichkeit und Weiblichkeit in der deutschen Kultur, Literatur und Sprache.
Erfahrungen mit Wikipedia.de
(2016)
Ausgehend von der unsystematischen Mitarbeit einerseits, der laufenden Beobachtung einiger mit dieser Absicht geschriebenen Artikel (zur Volksliedforschung) andererseits sollen weitgehend allgemein gültige Beobachtungen und Erfahrungen mit der deutschen Wikipedia skizziert werden. Damit soll diese für türkische Studierende äußerst wichtige Informationsquelle transparenter gemacht werden, und damit soll zu einer kreativ-kritischen Verwendung von Wikipedia angeregt werden.
Wikipedia kann im Unterricht verwendet werden, ja den richtigen Gebrauch von Wikipedia zu lernen, sollte wichtiges Unterrichtsthema sein. Wikipedia regt zur Mitarbeit an; man sollte allerdings wissen, worauf man sich einlässt.
İkinci dil öğrenme yaşına ilişkin tartışmalar sürerken, birçok gelişmiş ülkede olduğu gibi ülkemizde de anaokulundan itibaren yabancı dil öğretimi gerçekleştirilmektedir. Yabancı dil öğreniminde, görsel-işitsel araç kullanarak dile ait konuşma seslerinin ve sözcüklerin doğru telaffuzunu duymak, doğru telaffuz edebilmek ve dilin ait olduğu kültürü tanımak çok önemlidir. Erken yaşta yabancı dil öğrenimine bu açıdan yaklaşıldığında dil öğreniminde yabancı bir dile ve kültüre ait çizgi filmlerin yeri, üzerinde durulması gereken bir konu olarak karşımıza çıkmaktadır. Bu çalışmada, okul öncesi dönem çocuklarının yabancı dil öğreniminde çizgi filmlerin yeri incelenmiştir. Bu kapsamda, yabancı dil öğrenme yaşı, yabancı dil öğretim yöntemleri kuramsal açıdan ele alınmış; çizgi filmlerin yabancı dil öğrenimindeki yeri üzerinde durularak, ne tür çizgi filmlerin erken yaşta yabancı dil öğreniminde daha etkin ve yararlı olduğu ortaya konulmaya çalışılmıştır.
Der Faktor 'Sommerferien' beim Übergang von der
Vorbereitungsklasse in die Deutschlehrerausbildung
(2016)
Die Eingangssprachkenntnisse der Studierenden des Studiengangs 'Lehramt für Deutsch als Fremdsprache' an der Universität Trakya unterscheiden sich bei der Aufnahme des Fachstudiums von den Ergebnissen der Sprachstandprüfung, die am Ende der einjährigen Vorbereitungsklasse durchgeführt wird. Dieser Ausgangspunkt scheint auch für Abteilungen anderer Universitäten der Fall zu sein, die sich im gleichen Umfang befinden. Diesbezüglich ist es Ziel dieses Beitrags, den Faktor 'Sommerferien' bei diesem Übergang deskriptiv aufzudecken. Die Fragestellung, wie die Lernenden ihre Sommerferien bezüglich des Deutschlernens verbracht haben, war dabei entscheidend. Um eine Antwort darauf zu bekommen, wurden Lernende zu dem Faktor 'Sommerferien' mittels qualitativer Erhebungsmethode befragt. Die Resultate wurden mit Lernstrategien angeknüpft. Aus der Forschung resultierten zwei Ansätze: Erstens sollten einige Konzepte entwickelt werden, damit die Lernenden ihre Deutschkenntnisse während ihrer Sommerferien kontinuierlich weiterentwickeln. Zweitens sollten einige Maßnahmen getroffen werden, womit DaF_Lernende ihre gelernten Deutschkenntnisse wenigstens stabil halten können.
Bu çalışmada Türkiye'de ilköğretim kurumlarından itibaren en az bir yabancı dil öğretilmesine rağmen neden Ölçme Seçme ve Yerleştirme Merkezi (ÖSYM) tarafından hazırlanan, uygulanan ve değerlendirilen sınavlarda birçok kişinin istenilen başarıya ulaşamadığı, özellikle dört yıl yabancı dilde eğitim alan Almanca öğretmenlik lisans mezunu öğretmen adaylarının Öğretmenlik Alan Bilgisi Testinden neden istedikleri sonuçları elde edemedikleri araştırılmış, sınavlara girenlerin sınav sorularını ne ölçüde doğru cevaplandırdıkları veya sorulara cevap verirken neden hata yaptıkları sorularına cevap aranmıştır. Araştırmaya ilişkin veriler rastgele seçilen ÖSYM'nin hazırlamış olduğu sınavlardan alınan örnek sorulardan oluşturulan bir örnek sınavın Trakya Üniversitesi lisans öğrencilerine uygulanması suretiyle toplanmış, okuduğunu anlama, çeviri gibi birçok soru tipinde iyi sonuçlar elde edilmesi ancak dilbilgisine ilişkin soruların çok azının doğru cevaplandırılması sonucunda araştırma cevap şıkları arasında en az bir adet bağlaç bulunan sorular ile sınırlandırılmıştır. Bağlaçlar üzerine yapılan inceleme, ÖSYM tarafından hazırlanan ve uygulanan sınavlarda günlük yaşamda sık kullanılan bağlaçların yanı sıra çok nadir kullanılan bağlaçlara da yer verildiğini ve sorulara doğru cevap verebilmek için lisans süresince kullanılan dilbilgisi kitaplarındaki konuları tekrar etmenin yeterli olmayacağı, merkezi sınavlarda yer alan soruları doğru cevaplandırabilmek için özellikle şıklarda yer alan uygun bir kelime ile tamamlanması gereken cümlelerin anlamlarının çok iyi anlaşılması ve bunun için de çok geniş bir kelime hazinesine sahip olunması ve öte yandan bağlaçların üstlenebilecekleri tüm işlevlerini ve anlamsal ve sözdizimsel özelliklerini bilmek gerektiğini ortaya koymuştur. Ancak Almanca Öğretmenliği lisans eğitimi süresince kullanılan dilbilgisi kitapları incelendiğinde, bunlarda her bir bağlaca yer verilmediği gibi bağlaçların sunuluş biçiminde de farklılıkların olduğu ve her kaynakta bağlaçların her bir anlamsal ve sözdizimsel özelliğine yer verilmediği, bu nedenle Almanca öğretmen adaylarının sınavlarda başarılı olmak için lisans süresince aldıkları eğitimin yanı sıra mutlaka daha başka kaynaklardan da aydalanarak bireysel olarak ek çalışmalar yapmaları gerektiği sonucuna varılmıştır.
Kadınlar ve erkekler yapısal farklılıkları dışında birçok açıdan ayrılıklar göstermektedir. Bu ayrılıklar sadece fiziki görünüşte, giyimde, hareketlerde değil, genel olarak davranış, uygulama, düşünme, alışkanlıklar ve dil gibi alanlarda da görülebilmektedir. Ayrıca kadın ve erkeğe sahip oldukları biyolojik cinsiyetleri haricinde toplumsal roller de yüklenmektedir. Bu roller de kadın ve erkek arasında mevcut olan farklılıkların toplumsal açıdan etkileşime girmesini sağlamaktadır. Toplumsal etkileşimler kadınlarla erkeklerin dillerinde de gözlemlenebilmektedir. Dil, bu durumda biyolojik cinsiyet ve toplumsal rol etkileşimlerinin bir arada bulunduğu bir öğedir. Aynı dili konuşmalarına, dilin aynı sözcükleri ve kurallarını kullanmalarına rağmen, kadınların dilleri ile erkeklerin dilleri arasında farklılıklar bulunmaktadır. Genel olarak deskriptif - analitik yöntemle ilerleyecek olan bu çalışmanın amacı Türkiye'deki kadın dili araştırmalarına göz atmaktır. Çalışmanın kuramsal kısmında, Türkiye'de yapılmış olan kadın dili araştırmalarına değinilerek hangi durumda olduğunun gözden geçirilmesi düşünülmektedir. Dünyada kadın ve erkek dili ile ilgili çalışmalara 20. yüzyıl başlarında ağırlık verilmiştir. Bu çalışmalar sadece içeriksel değil, aynı zamanda sözlüksel, retorik ve sözdizimsel bağlamda da gerçekleştirilmiştir. Özellikle Almanya’da oldukça geniş bir araştırma alanı olan bu konunun, Türkiye'de bu kadar geniş çapta ele alınmadığı görülmektedir. Çalışmanın uygulama bölümünde medyadaki kadın dili ele alınacaktır. Bu kısımda medya metinleri değerlendirilerek söz konusu metinlerdeki kadın dili incelenecektir. Kadın dili değişkeninin görsel medyada hangi özellikleri ile ortaya çıktığı, ne şekilde gözlemlenebildiği gerek içeriksel, gerekse sözlüksel, retorik ve sözdizimsel bağlamda incelenecektir.
Almanca dilbilgisinde tümcenin temel öğeleri genellikle eylem temel alınarak yapılır. Türkçe dilbilgisi için bu durum sözde kalmaktadır. Çünkü öğeler genellikle eylemin birleşim değeri göz önünde bulundurulmadan, o anda tümcede rastlantısal olarak bulunan öğeler olarak değerlendirilmektedir. Dolayısıyla, nitel araştırma yöntemiyle internetten ve basılı dokümanlardan elde edilen verilerin yorumlanmasıyla oluşan bu makalede, birleşim değeri çerçevesinde değerlendirme yapılmış olup eylemin gerektirdiği öğeler buna göre ele alınmalıdır. Diğer bir sorun da, Almanca dilbilgisi bağlamında üzerinde genel anlamda uzlaşılan, ancak Türkçede tartışmalı olan nesne terimi ve kavramıdır. Dolayısıyla bu çalışmada genel anlamda nesne kavramından yola çıkılarak sonilgeçli nesne kavramına gelinecektir. Amaç, Türkçe - Almanca nesne türlerini karşılaştırmak değil, Türk dili bağlamında “nesne”nin daha iyi anlaşılmasını sağlamak için Almancadan da örnekler vermektir. Nesne teriminin Türkçede Akkusativobjekt ile sınırlı tutulmasının yanlış olduğu ve çıkma durumu nesnesi, bulunma durumu nesnesi, sonilgeçli nesne gibi terimlerin dilbilgisel bir gerçek olduğu sonucuna varılmıştır. Bu bağlamda Türkçede eyleyen (Aktant) olarak sonilgeçli nesne (Postpositionalobjekt) gerektiren eylemler olduğu saptanmıştır.
Causative, which is analyzed in the context of voice, differs widely in Turkish and German languages. A causative can be obtained nearly from each verb in Turkish language while this category is not productive in German Language. Like prefixes, which are of great importance in German language, the causative has the same significance in Turkish language. Causatives can be divided into three: a) lexical causative, causative existing in words' own meaning; for instance, there exists such a relationship between the words "slide" and "fall"; b) morphological causative consists of morphemes (öl-dür-t-mek); c) whereas, the context is important for the operant causative. When we say “It smells gas in here’ it may have been intended to open a window and we can make it done. There is a direct connection between the causative and causality. Because, in causative instead of doing something directly, it may be caused to be done or occurred. The notion of causative in German has been reviewed in the semantic context at a low degree. This is because of the fact that, morphological causative verbs are fewer and new causative voices can't be formed. However, this issue has been handled in a very detailed manner especially at morphological level in Turkish language. There is even fine detail under the title causative itself. The most important characteristic of causative is to change the combination value of the verbs. However, the relation between causative and passive is just the opposite of this and asymmetric. Structures having semantic similarities with causatives and named as Funktionsverbgefüge (put into practice = apply) in German exist. Reciprocal voices and reflexive voices, the most important voices of Turkish language, generally allow the formation of causative verb.
Das Buch gegen das Verschwinden ist Ulrike Almut Sandigs zweite Prosaveröffentlichung und kann mit dem Etikett lyrische Prosa versehen werden, da die Autorin bisher doch zumeist im lyrischen Bereich veröffentlicht hat. Klar und hart sind die Sätze, überlegt durchdacht die Szenen, ausgefeilt die Erzählstrukturen, die sich manchmal jedoch erst später strukturieren. Und doch findet Ulrike Almut Sandig einen Ton, der die Geschichte Die Blauen Augen Deiner Mutter in einer schwebenden Ambivalenz hält" (Schröder 2015). Sicher, man könnte all das rein realistisch lesen und daneben auch versuchen sich eine Meinung über den Gezi-Park zu bilden, als würde man eine rationale Erklärung für die Thematik finden. "Und doch sickert in die Grundfesten des Plausiblen immer wieder eine Form von Unheimlichkeit und Restunerfindlichkeit ein. Sandig torpediert Gewissheiten, die ihrer Figuren und die ihrer Leser" (ebd.). Ohne sich einem Erzählschema unterzuordnen, ist allen Texten in diesem Band eines gemeinsam: Etwas kommt abhanden, löst sich in Luft auf, verschwindet. Zurück bleiben Vereinsamte, die, wenn überhaupt, über das Erzählen xistieren.
Oral anticoagulant-associated intracerebral hemorrhage (OAC-ICH) accounts for nearly 20% of all ICH. The number of patients with an indication for oral anticoagulant therapy (OAT) increases with increasing age. OAT became less complicate with the introduction of non-vitamin K oral anticoagulants (NOAC) OAT because of easier handling, favorable risk-benefit profile, reduced rates of ICH compared to vitamin K antagonists and no need for routine coagulation testing. Consequently, despite a better safety profile of NOAC the number of patients with OAC-ICH will increase. The mortality and complication rates of OAC-ICH are high and therefore they are the most feared complication of OAT. Immediate normalization of coagulation is the main goal and therefore knowledge of pharmacodynamics and coagulation status is essential. Laboratory measurements of anticoagulant activity in NOAC patients is challenging as specific tests are not widely available. More accessible tests such as the prothrombin time and activated partial thromboplastin time have important limitations. In dabigatran-associated ICH 5 g Idarucizumab should be administered. In rivaroxaban and apixaban-associated ICHs administration of andexanet alpha should be considered. Prothrombin complex concentrate may be considered if andexanet alpha is not available or in case of an ICH associated with edoxaban.
The authors review the current status of percutaneous left atrial appendage (LAA) occlusion therapy in patients with atrial fibrillation with the goal to prevent ischemic stroke and systemic embolism and to reduce oral anticoagulation associated bleeding. While we cover the historical and also surgical background, and all tested devices, the main focus rests on the single currently U.S. Food and Drug Administration (FDA) approved LAA occluder, the WATCHMAN device, and its approval process. The authors also give a critical appraisal beyond the review of mere facts, trying to put the current data into perspective.
Background: Obesity is a global problem leading to reduced life expectancy, cardiovascular diseases, diabetes and many types of cancer. Even people willing to accept treatment only achieve a mean weight loss of about 5 kg using commercial weight loss programs. Surgical interventions, e.g. sleeve gastrectomy or gastric bypass are effective but accompanied by risk of serious complications and side effects. Less invasive endoscopic procedures mainly comprise the intragastric balloon (IB) and the duodenal-jejunal bypass liner (DJBL). To date, a randomized comparison between these devices has not been undertaken or shown to be superior to a sham procedure.
Methods: We designed a multi-center, randomized, patient and assessor-blinded, controlled trial comparing weight loss in endoscopically implanted IB vs. DJBL vs. a sham procedure. A total of 150 patients with a BMI > 35 kg/m2 or > 30 with obesity-related comorbidities and indication for proton pump inhibitors are randomized to receive either IB, DJBL or a sham gastroscopy (2:2:1 ratio). All participants undergo regular dietary consultation. The IB will be removed after 6 months, whereas the DJBL will be explanted after 12 months. All patients will receive gastroscopies at implantation and explantation of the devices or sedation without gastroscopy to maintain blinding. Main exclusion criteria are malignant diseases, peptic ulcer or previous bariatric intervention. Weight loss 12 months after explantation of the devices, changes in comorbidities, quality of life, complication rates and safety will be evaluated.
Discussion: This trial could help to identify the most effective and safest endoscopic device, thus determining the new standard procedure for endoscopic bariatric treatment.
Trial registration: 16th January 2017. DRKS00011036. Funded by the German Research Foundation (DFG).
Different response of Ptch mutant and Ptch wildtype Rhabdomyosarcoma toward SMO and PI3K inhibitors
(2018)
Rhabdomyosarcoma (RMS) is the most common pediatric soft tissue sarcoma with poor prognosis. RMS frequently show Hedgehog (HH) pathway activity, which is predominantly seen in the embryonal subtype (ERMS). They also show activation of Phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K) signaling. Here we compared the therapeutic effectiveness and the impact on HH target gene expression of Smoothened (SMO) antagonists with those of the PI3K inhibitor pictilisib in ERMS with and without mutations in the HH receptor Patched1 (PTCH). Our data demonstrate that growth of ERMS showing canonical Hh signaling activity due to Ptch germline mutations is efficiently reduced by SMO antagonists. This goes along with strong downregulation of the Hh target Gli1. Likewise Ptch mutant tumors are highly responsive toward the PI3K inhibitor pictilisib, which involves modulation of AKT and caspase activity. Pictilisib also modulates Hh target gene expression, which, however, is rather not correlated with its antitumoral effects. In contrast, sporadic ERMS, which usually express HH target genes without having PTCH mutation, apparently lack canonical HH signaling activity. Thus, stimulation by Sonic HE (SHH) or SAG (Smoothened agonist) or inhibition by SMO antagonists do not modulate HH target gene expression. In addition, SMO antagonists do not provoke efficient anticancer effects and rather exert off-target effects. In contrast, pictilisib and other PI3K/AKT/mTOR inhibitors potently inhibit cellular growth. They also efficiently inhibit HH target gene expression. However, of whether this is correlated with their antitumoral effects it is not clear. Together, these data suggest that PI3K inhibitors are a good and reliable therapeutic option for all ERMS, whereas SMO inhibitors might only be beneficial for ERMS driven by PTCH mutations.
The opportunistic pathogen Acinetobacter baumannii is able to grow on carnitine. The genes encoding the pathway for carnitine degradation to the intermediate malic acid are known but the transporter mediating carnitine uptake remained to be identified. The open reading frame HMPREF0010_01347 (aci01347) of Acinetobacter baumannii is annotated as a gene encoding a potential transporter of the betaine/choline/carnitine transporter (BCCT) family. To study the physiological function of Aci01347, the gene was deleted from A. baumannii ATCC 19606. The mutant was no longer able to grow on carnitine as sole carbon and energy source demonstrating the importance of this transporter for carnitine metabolism. Aci01347 was produced in Escherichia coli MKH13, a strain devoid of any compatible solute transporter, and the recombinant E. coli MKH13 strain was found to take up carnitine in an energy‐dependent fashion. Aci01347 also transported choline, a compound known to be accumulated under osmotic stress. Choline transport was osmolarity‐independent which is consistent with the absence of an extended C‐terminus found in osmo‐activated BCCT. We propose that the Aci01347 is the carnitine transporter mediating the first step in the growth of A. baumannii on carnitine.
Danger signals in trauma
(2018)
This review summarizes a short list of currently discussed trauma-induced danger-associated molecular patterns (DAMP). Due to the bivalent character and often pleiotropic effects of a DAMP, it is difficult to describe its “friend or foe” role in post-traumatic inflammation and regeneration, both systemically as well locally in tissues. DAMP can be used as biomarkers to indicate or monitor disease or injury severity, but also may serve as clinically applicable parameters for better indication and timing of surgery. Due to the inflammatory processes at the local tissue level or the systemic level, the precise role of DAMP is not always clear to define. While in vitro and experimental studies allow for the detection of these biomarkers at the different levels of an organism—cellular, tissue, circulation—this is not always easily transferable to the human setting. Increased knowledge exploring the dual role of DAMP after trauma, and concentrating on their nuclear functions, transcriptional targets, release mechanisms, cellular sources, multiple functions, their interactions and potential therapeutic targeting is warranted.
Oncogenic rearrangements leading to targetable gene fusions are well-established cancer driver events in lung adenocarcinoma. Accurate and reliable detection of these gene fusions is crucial to select the appropriate targeted therapy for each patient. We compared the targeted next-generation-sequencing Oncomine Focus Assay (OFA; Thermo Fisher Scientific) with conventional ALK FISH and anti-Alk immunohistochemistry in a cohort of 52 lung adenocarcinomas (10 ALK rearranged, 18 non-ALK rearranged, and 24 untested cases). We found a sensitivity and specificity of 100% for detection of ALK rearrangements using the OFA panel. In addition, targeted next generation sequencing allowed us to analyze a set of 23 driver genes in a single assay. Besides EML4-ALK (11/52 cases), we detected EZR-ROS1 (1/52 cases), KIF5B-RET (1/52 cases) and MET-MET (4/52 cases) fusions. All EML4-ALK, EZR-ROS1 and KIF5B-RET fusions were confirmed by multiplexed targeted next generation sequencing assay (Oncomine Solid Tumor Fusion Transcript Kit, Thermo Fisher Scientific). All cases with EML4-ALK rearrangement were confirmed by Alk immunohistochemistry and all but one by ALK FISH. In our experience, targeted next-generation sequencing is a reliable and timesaving tool for multiplexed detection of targetable rearrangements. Therefore, targeted next-generation sequencing represents an efficient alternative to time-consuming single target assays currently used in molecular pathology.
The p300/CBP‐associated factor (PCAF) and related GCN5 bromodomain‐containing lysine acetyl transferases are members of subfamily I of the bromodomain phylogenetic tree. Iterative cycles of rational inhibitor design and biophysical characterization led to the discovery of the triazolopthalazine‐based L‐45 (dubbed L‐Moses) as the first potent, selective, and cell‐active PCAF bromodomain (Brd) inhibitor. Synthesis from readily available (1R,2S)‐(−)‐norephedrine furnished L‐45 in enantiopure form. L‐45 was shown to disrupt PCAF‐Brd histone H3.3 interaction in cells using a nanoBRET assay, and a co‐crystal structure of L‐45 with the homologous Brd PfGCN5 from Plasmodium falciparum rationalizes the high selectivity for PCAF and GCN5 bromodomains. Compound L‐45 shows no observable cytotoxicity in peripheral blood mononuclear cells (PBMC), good cell‐permeability, and metabolic stability in human and mouse liver microsomes, supporting its potential for in vivo use.
Objective. Traumatic injury or severe surgery leads to a profound immune response with a diminished functionality of monocytes and subsequently their IL-1β release. IL-1β plays an important role in host immunity and protection against infections. Its biological activation via IL-1β-precursor processing requires the transcription of inflammasome components and their activation. Deregulated activity of NOD-like receptor inflammasomes (NLR) like NLRP3 that leads to the maturation of IL-1β has been described in various diseases. While the role of other inflammasomes has been studied in monocytes, nothing is known about NLRP3 inflammasome after a traumatic injury. Here, the role of the NLRP3 inflammasome in impaired monocyte functionality after a traumatic injury was analyzed.
Measurements and Main Results. Ex vivo-in vitro stimulation of isolated CD14+ monocytes with lipopolysaccharide (LPS) showed a significantly higher IL-1β secretion in healthy volunteers (HV) compared to trauma patients (TP) after admission. Reduced IL-1β secretion was paralleled by significantly lowered gene expression of NLRP3 in monocytes from TP compared to those of HV. Transfection of monocytes with NLRP3-encoding plasmid recovered the functionality of monocytes from TP regarding the IL-1β secretion.
Conclusions. This study demonstrates that CD14+ monocytes from TP are significantly diminished in their function and that the presence of NLRP3 components is necessary in recovering the ability of monocytes to produce active IL-1β. This recovery of the NLRP3 inflammasome in monocytes may imply a new target for treatment and therapy of immune suppression after severe injury.
Species identification of adult African blowflies (Diptera: Calliphoridae) of forensic importance
(2017)
Necrophagous blowflies can provide an excellent source of evidence for forensic entomologists and are also relevant to problems in public health, medicine, and animal health. However, access to useful information about these blowflies is constrained by the need to correctly identify the flies, and the poor availability of reliable, accessible identification tools is a serious obstacle to the development of forensic entomology in the majority of African countries. In response to this need, a high-quality key to the adults of all species of forensically relevant blowflies of Africa has been prepared, drawing on high-quality entomological materials and modern focus-stacking photomicroscopy. This new key can be easily applied by investigators inexperienced in the taxonomy of blowflies and is made available through a highly accessible online platform. Problematic diagnostic characters used in previous keys are discussed.
2010 yılında Polonya'nın Varşova kentinde "Vielheit und Einheit der Germanistik" teması ile gerçekleştirilen 12. Uluslararası Germanistik Kongresi’nin ardından 13. Uluslararası Germanistik Kongresi 2015 yılında "Germanistik zwischen Tradition und Innovation" teması ile Çin Halk Cumhuriyeti Şanghay Tongji Üniversitesi'nde 23-30 Ağustos 2015 tarihlerinde düzenlendi. Türkiye'nin de aralarında bulunduğu 96 ülkeden kongreye katılan 1200'ün üzerinde değerli akademisyen ve araştırmacı kongrede bildirilerini sundular.
Der 13. Weltkongress der Internationalen Vereinigung für Germanistik (IVG) fand vom 23.08.2015 bis zum 30.08.2015 unter dem Motto "Germanistik zwischen Tradition und Innovation" in Shanghai/China statt. Gastgeber dieses vielfältigen und reichhaltigen internationalen Kongresses war die Tongji-Universität. Mehr als 1200 Teilnehmerinnen und Teilnehmer aus 69 Ländern haben an diesem Kongress, der alle fünf Jahre organisiert wird, teilgenommen. Auch die Türkei beteiligte sich mit ca. 30 Wissenschaftlerinnen und Wissenschaftlern aus Edirne bis Van an diesem Kongress.
Das wissenschaftliche Interesse auf dem Feld der Germanistik ist in den letzten Jahren in Rumänien, auch dank Herta Müller, die 2009 den Nobelpreis für Literatur bekommen hat, stark gestiegen. Nach dem letzten Kongress der Germanisten Rumäniens 2012 in Bukarest wurde der 10. Kongress der Germanisten Rumäniens vom 01. bis 04. Juni 2015 in der Aula an der Universität Transilvania in Braşov/Kronstadt veranstaltet. Die Tagung wird alle drei Jahre an jeweils wechselnden Hochschulen vom dortigen Germanistik-Fachbereich veranstaltet, was zeigt, dass die Germanistik in Rumänien an vielen Orten durch zum Teil kleine, aber aktive Lehrstühle vertreten ist.
Considering the misunderstanding of the particles used as an adverb by itself in closely related languages, we will try to provide the comprehension of sense of language about this area, which is missing in German. For this purpose, opposite language pairs seeming logical and etimological proofs about language variation will be presented. Firstly, we will try to explain what the sense of language is. We believe that it is more appropriate to say 'language acquisition' which can be acquired and developed by means of activities in foreign language classes. Examples verify this. In the conclusion, some other clarifying questions follow.
Sowohl international als auch national ist erkennbar, dass Länder in Bereichen Wirtschaft, kommunikative und informative Technologien, Politik, Bildung und Gesellschaft in unterschiedlicher Art und Weise mit kulturellen bzw. interkulturellen Tendenzen konfrontiert sind. Diese Tatsachen reflektieren somit, dass Gesellschaften immer mehr mit interkulturellen Herausforderungen in Kontakt kommen. Interkulturelles Lernen, Interkulturalität und interkulturelle Kompetenz enthalten gleichfalls im gegenwärtigen und modernen Fremdsprachenunterricht eine bedeutende Rolle und ein wichtiges Aufgabenfeld.
Present conditions are affecting the educational process and as a result of these changes restructuring these processes is essential. There is no doubt that in teaching foreign languages in general and in particular German as a foreign language, one of the prerequisites to gain for providing a qualified German language teaching is the training of qualified and well equipped German teachers. In this context one of the substantial competences in the training process is the linguistic competence. It is aimed that at the end of their study period, German language teacher candidates should have the ability of using the German language in written and spoken area and creating models for their prospective students.
Despite the new technological developments writing has not lost its importance; on the contrary, ist importance has been increasing day by day. German teacher candidates should be trained to be able to express themself written as well as verbally to respond to their students' writing needs. For this reason students who graduated from the German Language Teaching Department of Hasan Ali Yücel Faculty of Education of Istanbul University in 2013-2014 academic year were asked to evaluate their writing competence.
The self assessments results of the candidate teachers are going to be compared with the results of the writing competence part of the Goethe Zertifikat C1 examination. The aim is to determine proficiency in the duration of 4 years. The results also constitute the scientific basis of curricular discussions in the field of writing courses of the German Language Teaching Department.
In den letzten Jahren ist eine kaum überschaubare Anzahl von Büchern zum Thema Körpermodifikationen erschienen, was aber bisher fehlt, ist ein klares Verständnis und eine kurze überblicksartige Dаrstellung der gängigen Formen der Fachausdrücke im Bereich der ästhetischen Chirurgie, die dem linguistisch-medizinisch Interessierten einen prägnanten Einblick in die Herkunft, die Wоrtbildung und die Häufigkeit und vergleichende Analyse der medizinischen Termini liefert. Deshalb soll in diesem Artikel versucht werden, einen kleinen Beitrag zur Bildung und Entwicklung ästhetisch-medizinischer Terminologie zu leisten. Bei dem vorliegenden Artikel handelt es sich um eine deskriptive Terminоlоgiearbeit, deren Ziel es ist, die verwendete Terminologie eines Fachgebietes zu beschreiben und aufzuzeichnen
This article focuses primarily on three areas: First the article deals with Alfred Döblin's concept of the novel and the function of the montage technique from his perspective. Secondly, the article draws attention to the fact that Alfred Döblin, a neurologist by profession, who later dedicated himself exclusively to his writing, used the montage technique intensively in his great city novel Berlin Alexanderplatz. The technique, which operates at different levels of language, narrative technique and plot, is demonstrated by selected examples from the novel. In each case the intention of the novelist is discussed. The article considers whether individual accumulating elements accord with the wholeness of the novel, and if so, how this interesting synthesis occurs. The final focus is on his efforts to use the montage technique to portray the big city. In the case of Berlin Alexanderplatz, this effort ultimately ends with a big city epic. In this study, we consider how Döblin used the montage technique in Berlin Alexanderplatz, which was central, and new for German literature at that time. Additionally, narrative styles and techniques as parables, paraboles, sound associations, word and rhyme repetition and relevant passages are supported by quotations from the novel.
Else LaskerSchüler (1869-1945), among the significant expressionist woman writers, did not only suffer from being both a woman and author, but also had to struggle under difficulties of being a hebrew. In this paper, especially the letter novel titled "Der Malik : Eine Kaisergeschichte" has been handled in the light of Homi K. Bhabha's 'Third Space Theory'. In regard to this, the "Third Space", which is defined by postcolonial theoretician Homi K. Bhabha as an extra place where minorities and outcast groups can express themselves in his work "The Location of Culture", is adapted to the literary "Orient" and defined once again in Else Lasker-Schüler's novel as it was never approached and interpreted before. In this sense, this supports the relevance to analyze her mentioned works in terms of the "Third Space Theory". Else Lasker-Schüler constructed a new world for herself through literature; her works were her life and her life was her works.
Black Humor, Brimstone Grotesque and A Terrifying Scenery in the work of Thomas Bernhard named "The Painter". Thomas Bernhard (1931-1989) is one of the most important writers of the Austrian postwar literature. All of his works reflect the characteristics of that period. "Bernhardesque" literature (just as the "Kafkaesque") always shapes the language and brings it out forcing the maximum limits of the semantics and stylistics expression facilities of the language. Bernhard generally figures out the inner world of the modern people psychologically disturbed and represents their wholly technological, noncommunicative and hostile environment in his works, especially features ironic, absurd, and grotesque and a little bit comic elements. Thomas Bernhard, a worldwide famous writer, poet and playwright, wrote a prose novel entitled "Ereignisse" (Events) that includes thirty-one extraordinary stories in 1957. These are the stories can be read both independently from each other and also in coherence. This study is aimed to analyses one of these works, the twelfth one in the light of eclectical way, mostly involves 'black humor' which is named "Der Anstreicher" (The Painter). The term Black Humor is generally defined for the works characterized by a desperate, sardonic humor intended to induce laughter as the appropriate response to the apparent meaninglessness and absurdity of existence. This short story of Bernhard tells about an "Event" derived its theme from the daily life and can be thought as a simple work accident but it brings a death to his main character. Narrator narrates this fatal and ordinary event with a horrific, grotesque and agonizing absurdity and as we try to figure out in this study; The Painter includes 'Black Humor' in this context.
Biological invasions are frequently studied topics in ecological research. Unfortunately, within invasion ecology parasite-associated aspects such as parasite impacts on new environments and on local host populations are less well-studied. Round gobies migrating from the Ponto-Caspian region into the Rhine River system are heavily infested with the Ponto-Caspian acanthocephalan parasite Pomphorhynchus laevis. As shown by experimental infestations the acanthocephalans occur as pre-adults in host-encapsulated cysts within the internal organs of the migrating gobies, but remain infective for their definitive host chub. Recently, we described the occurrence of larvae of another parasite, the invasive eel swim bladder nematode Anguillicola crassus, in these Pomphorhynchus cysts. In the present study, we could prove the infectivity of the nematode larvae for European eels for the first time. After experimental inoculation of Pomphorhynchus cysts occasionally infested with A. crassus larvae, the nematodes grow to maturity and reproduce whereas all P. laevis were unviable. We therefore postulate that the nematode larvae behave like immunological hitchhikers that follow a “Trojan horse strategy” in order to avoid the paratenic host’s immune response. Accordingly, the interaction between both invasive parasites gives first evidence that the invasional meltdown hypothesis may also apply to parasites.
New technologies and therapies designed to facilitate development of personalized treatments are rapidly emerging in the field of biomedicine. Strikingly, the goal of personalized medicine refined the concept of therapy by developing cell-based therapies, the so-called “living drugs”. Breakthrough advancements were achieved in this regard in the fields of gene therapy, cell therapy, tissue-engineered products and advanced therapeutic techniques. The Advanced Therapies in Healthcare symposium, organized by the Clinical Research Center Department of Sidra Medicine, in Doha, Qatar (October 2017), brought together world-renowned experts from the fields of oncology, hematology, immunology, inflammation, autoimmune disorders, and stem cells to offer a comprehensive picture of the status of worldwide advanced therapies in both pre-clinical and clinical development, providing insights to the research phase, clinical data and regulatory aspects of these therapies. Highlights of the meeting are provided in this meeting report.
Background: Histological evidence suggests that autism spectrum disorder (ASD) is accompanied by a reduced integrity of the grey-white matter boundary. This has also recently been confirmed by a structural neuroimaging study in vivo reporting significantly reduced grey-white matter tissue contrast (GWC) in adult individuals (18–42 years of age) with ASD relative to typically developing (TD) controls. However, it remains unknown whether the neuroanatomical differences in ASD at the grey-white matter boundary are stable across development or are age-dependent.
Methods: Here, we examined differences in the neurodevelopmental trajectories of GWC in a cross-sectional sample of 77 male ASD individuals and 76 typically developing (TD) controls across childhood and early adulthood (from 7 to 25 years).
Results: Using nested model comparisons, we first established that the developmental trajectory of GWC is complex in many regions across the cortex and includes linear and non-linear effects of age. Second, while ASD individuals have significantly reduced GWC overall, these differences are age-dependent and are most prominent during childhood (< 15 years).
Conclusions: Taken together, our findings suggest that differences in GWC in ASD are unlikely to reflect atypical grey matter cytoarchitecture alone, but may also represent other aspects of the cortical architecture such as age-dependent variability in myelin integrity.
Background: The focus of this study is to identify particular microRNA (miRNA) signatures in exosomes derived from plasma of 435 human epidermal growth factor receptor 2 (HER2)-positive and triple-negative (TN) subtypes of breast cancer (BC).
Methods: First, miRNA expression profiles were determined in exosomes derived from the plasma of 15 TNBC patients before neoadjuvant therapy using a quantitative TaqMan real-time PCR-based microRNA array card containing 384 different miRNAs. Forty-five miRNAs associated with different clinical parameters were then selected and mounted on microRNA array cards that served for the quantification of exosomal miRNAs in 435 BC patients before therapy and 20 healthy women. Confocal microscopy, Western blot, and ELISA were used for exosome characterization.
Results: Quantification of 45 exosomal miRNAs showed that compared with healthy women, 10 miRNAs in the entire cohort of BC patients, 13 in the subgroup of 211 HER2-positive BC, and 17 in the subgroup of 224 TNBC were significantly deregulated. Plasma levels of 18 exosomal miRNAs differed between HER2-positive and TNBC subtypes, and 9 miRNAs of them also differed from healthy women. Exosomal miRNAs were significantly associated with the clinicopathological and risk factors. In uni- and multivariate models, miR-155 (p = 0.002, p = 0.003, respectively) and miR-301 (p = 0.002, p = 0.001, respectively) best predicted pathological complete response (pCR).
Conclusion: Our findings show a network of deregulated exosomal miRNAs with specific expression patterns in exosomes of HER2-positive and TNBC patients that are also associated with clinicopathological parameters and pCR within each BC subtype.
The challenges posed by climate and land use change are increasingly complex, with ever-increasing and accelerating impacts on the global environmental system. The establishment of an internationally harmonized, integrated, and long-term operated environmental monitoring infrastructure is one of the major challenges of modern environmental research. Increased efforts are currently being made in Europe to establish such a harmonized pan-European observation infrastructure, and the European network of Long-Term Ecological Research sites – LTER-Europe – is of particular importance. By evaluating 477 formally accredited LTER-Europe sites, this study gives an overview of the current distribution of these infrastructures and the present condition of long-term environmental research in Europe. We compiled information on long-term biotic and abiotic observations and measurements and examined the representativeness in terms of continental biogeographical and socio-ecological gradients. The results were used to identify gaps in both measurements and coverage of the aforementioned gradients. Furthermore, an overview of the current state of the LTER-Europe observation strategies is given. The latter forms the basis for investigating the comparability of existing LTER-Europe monitoring concepts both in terms of observational design as well as in terms of the scope of the environmental compartments, variables and properties covered.
We examined alterations in E/I-balance in schizophrenia (ScZ) through measurements of resting-state gamma-band activity in participants meeting clinical high-risk (CHR) criteria (n = 88), 21 first episode (FEP) patients and 34 chronic ScZ-patients. Furthermore, MRS-data were obtained in CHR-participants and matched controls. Magnetoencephalographic (MEG) resting-state activity was examined at source level and MEG-data were correlated with neuropsychological scores and clinical symptoms. CHR-participants were characterized by increased 64–90 Hz power. In contrast, FEP- and ScZ-patients showed aberrant spectral power at both low- and high gamma-band frequencies. MRS-data showed a shift in E/I-balance toward increased excitation in CHR-participants, which correlated with increased occipital gamma-band power. Finally, neuropsychological deficits and clinical symptoms in FEP and ScZ-patients were correlated with reduced gamma band-activity, while elevated psychotic symptoms in the CHR group showed the opposite relationship. The current study suggests that resting-state gamma-band power and altered Glx/GABA ratio indicate changes in E/I-balance parameters across illness stages in ScZ.
Background: This study assessed the impact of medical students’ emotion recognition ability and extraversion on their empathic communication, as perceived by simulated patients in a training context.
Methods: This study used a crossed-effect data structure and examined 245 students in their fourth year of medical school. The students’ personality traits were assessed based on a self-assessment questionnaire of the short form of the Big Five Inventory; their emotion recognition ability was measured using a performance test (Diagnostic Analysis of Nonverbal Accuracy-2, Adult Facial Expressions). Simulated patients evaluated the medical students’ empathic communication.
Results: Students with a combination of high emotion recognition ability and extraversion received more positive ratings from simulated patients than their fellow students with a combination of emotion recognition ability and low extraversion. The main effects of emotion recognition or extraversion were not sufficient to yield similar effects. There were no other effects related to the remaining Big Five variables.
Conclusions: The results support the hypothesis that to build rapport with patients, medical staff need to combine emotional capabilities with a dispositional interest in interpersonal encounters.
Most studies in the life sciences and other disciplines involve generating and analyzing numerical data of some type as the foundation for scientific findings. Working with numerical data involves multiple challenges. These include reproducible data acquisition, appropriate data storage, computationally correct data analysis, appropriate reporting and presentation of the results, and suitable data interpretation.
Finding and correcting mistakes when analyzing and interpreting data can be frustrating and time-consuming. Presenting or publishing incorrect results is embarrassing but not uncommon. Particular sources of errors are inappropriate use of statistical methods and incorrect interpretation of data by software. To detect mistakes as early as possible, one should frequently check intermediate and final results for plausibility. Clearly documenting how quantities and results were obtained facilitates correcting mistakes. Properly understanding data is indispensable for reaching well-founded conclusions from experimental results. Units are needed to make sense of numbers, and uncertainty should be estimated to know how meaningful results are. Descriptive statistics and significance testing are useful tools for interpreting numerical results if applied correctly. However, blindly trusting in computed numbers can also be misleading, so it is worth thinking about how data should be summarized quantitatively to properly answer the question at hand. Finally, a suitable form of presentation is needed so that the data can properly support the interpretation and findings. By additionally sharing the relevant data, others can access, understand, and ultimately make use of the results.
These quick tips are intended to provide guidelines for correctly interpreting, efficiently analyzing, and presenting numerical data in a useful way.
Perception of irony has been observed to be impaired in adults with autism spectrum disorder. In typically developed adults, the mismatch of verbal and nonverbal emotional cues can be perceived as an expression of irony even in the absence of any further contextual information. In this study, we evaluate to what extent high functioning autists perceive this incongruence as expressing irony. Our results show that incongruent verbal and nonverbal signals create an impression of irony significantly less often in participants with high-functioning autism than in typically developed control subjects. The extent of overall autistic symptomatology as measured with the autism-spectrum questionnaire (AQ), however, does not correlate with the reduced tendency to attribute incongruent stimuli as expressing irony. Therefore, the attenuation in irony attribution might rather be related to specific subdomains of autistic traits, such as a reduced tendency to interpret communicative signals in terms of complex intentional mental states. The observed differences in irony attribution support the assumption that a less pronounced tendency to engage in higher order mentalization processes might underlie the impairment of pragmatic language understanding in high functioning autism.
Invasive species provide a unique opportunity to evaluate factors controlling biogeographic distributions; we can consider introduction success as an experiment testing suitability of environmental conditions. Predicting potential distributions of spreading species is not easy, and forecasting potential distributions with changing climate is even more difficult. Using the globally invasive coypu (Myocastor coypus [Molina, 1782]), we evaluate and compare the utility of a simplistic ecophysiological based model and a correlative model to predict current and future distribution. The ecophysiological model was based on winter temperature relationships with nutria survival. We developed correlative statistical models using the Software for Assisted Habitat Modeling and biologically relevant climate data with a global extent. We applied the ecophysiological based model to several global circulation model (GCM) predictions for mid-century. We used global coypu introduction data to evaluate these models and to explore a hypothesized physiological limitation, finding general agreement with known coypu distribution locally and globally and support for an upper thermal tolerance threshold. Global circulation model based model results showed variability in coypu predicted distribution among GCMs, but had general agreement of increasing suitable area in the USA. Our methods highlighted the dynamic nature of the edges of the coypu distribution due to climate non-equilibrium, and uncertainty associated with forecasting future distributions. Areas deemed suitable habitat, especially those on the edge of the current known range, could be used for early detection of the spread of coypu populations for management purposes. Combining approaches can be beneficial to predicting potential distributions of invasive species now and in the future and in exploring hypotheses of factors controlling distributions.
Soil frequently occurs as a contaminant on numerous sea, land and air transport pathways. It can carry unwanted invasive species, is widely recognized as a biosecurity risk, and is usually strictly regulated by biosecurity authorities. However, little is known about relative risk levels between pathways, thus authorities have limited capability to identify and target the riskiest soil pathways for management. We conducted a an experiment to test the hypotheses that biosecurity risks from soil organisms will increase both with declining transport duration and with increasing protection from environmental extremes. Soil was collected from two sites, a native forest remnant and an orchard, and stored on, in and under sea containers, or in cupboards, and assayed after 0, 3, 6 and 12 months for bacteria, fungi, nematodes and seeds. Results showed that viability of Pseudomonas spp., bacteria, nematodes and plants declined over 12 months, irrespective of soil source. Also, mortality of most biota was higher when exposed to sunlight, moisture and desiccation than when protected. However, bacterial and fungal numbers were higher in exposed environments, possibly due to ongoing colonization of exposed soil by airborne propagules. The results were consistent with our observations of organisms in soil intercepted from airports and sea ports, and indicated there is potential to rank risks from transported soils based partly on transport duration and environmental exposure. This would help authorities to optimally allocate management resources according to pathway-specific risks.
Introduced species lists provide essential background information for biological invasions research and management. The compilation of these lists is, however, prone to a variety of errors. We highlight the frequency and consequences of such errors using introduced Melaleuca (sensu lato, including Callistemon) species in South Africa as a case study. We examined 111 herbarium specimens from South Africa and noted the categories and sub-categories of errors that occurred in identification. We also used information from herbarium specimens and distribution data collected in the field to determine whether a species was introduced, naturalized and invasive. We found that 72% of the specimens were not named correctly. These were due to human error (70%) (misidentification, and improved identifications) and species identification problems (30%) (synonyms arising from inclusion of Callistemon, and unresolved taxonomy). At least 36 Melaleuca species have been introduced to South Africa, and field observations indicate that ten of these have naturalized, including five that are invasive. While most of the errors likely have negligible impact on management, we highlight one case where incorrect identification lead to an inappropriate management approach and some instances of errors in published lists. Invasive species lists need to be carefully reviewed to minimise errors, and herbarium specimens supported by DNA identification are required where identification using morphological features is particularly challenging.
Biological invasions are occurring frequently and with great impact to agricultural production and other ecosystem services. In response to this, the Australian Weed Risk Assessment (AWRA) was created to assess the potential 'weediness' of plants based on answers to questions related to biogeography, undesirable attributes, and biology or ecology. This basic model has been expanded and adapted for use on other taxa, often without adequate validation. Since invasive insect crop pests are a major economic cost to agricultural production, there is interest in using an expanded model for insects. Here, we review traits related to invasiveness of insects based on a systematic review of the literature. We then compare the identified invasive traits of insects with those identified for plants in the AWRA. Using insects as a case study, we illustrate that although there is some overlap in invasive traits, there are many unique traits related to invasion for both insects and plants. For insects, these traits relate largely to social behaviour. This lack of congruence may also be the case for other taxa. To increase predictive power, a taxon-specific risk assessment tool and deliberate verification are required.
Islands are particularly noteworthy for global conservation because of the high number of species they host, the high levels of species endemism, and the large number and proportion of species at risk of extinction. Much of the conservation threat on islands is from invasive species. Whilst biosecurity is an increasing focus of attention for authorities globally, species are continuing to establish in new locations outside of their native ranges. Among invasive species, ants are a prominent taxon, especially on islands. Over the past decade, following the detection of one of the world’s worst invasive ant species, African big-headed ant Pheidole megacephala, the environmental management authority on world-heritage-listed Lord Howe Island has focused attention on invasive ants. This detection influenced the creation of biosecurity measures to prevent further incursions of exotic species, particularly ants. Despite these efforts, over the following decade numerous ant species were collected on the island for the first time, indicating a serious biosecurity problem. Here, we investigate the chronosequence of ant introductions to Lord Howe Island to quantify the extent and nature of the island’s ant biosecurity problem. A total of 45 species have been collected on the island and of these, 12 are considered to be endemic, and a further seven are possibly native. Nineteen of the 26 introduced species (42% of the total fauna and 73% of the introduced fauna) were only found for the first time in the last 15 years. All but two of the species that are not native to Lord Howe Island are native to the Australian mainland, indicating that the biosecurity threat comes from the transport of goods from the Australian mainland. We suggest that the pattern of accelerating ant species accumulation on Lord Howe Island is probably not an isolated phenomenon, and that it is probably occurring on most islands globally that are habitable by ants and visited by people.
Ambrosia artemisiifolia (common ragweed) is an invasive species native to North America and was accidentally introduced to Europe in the 19th century. Widespread in disturbed habitats, it is a major weed in spring-sown crops and it causes serious allergic rhinitis and asthma due to its allergenic pollen. The aim of this research was to analyse the effects of both competitive vegetation and herbivory by Ophraella communa to control A. artemisiifolia in an agricultural area of north-western Italy. Hayseed mixtures, both over-seeded over the resident plant community or after ploughing, when seeded before the winter season, were able to suppress the establishment of A. artemisiifolia as well as to reduce its growth in terms of plant height and inflorescence size. Defoliation of A. artemisiifolia by O. communa at the end of the growing season was conspicuous but most of the plants still produced flowers and seeds. However, significant O. communa attack was recorded for reproductive structures. As for non-target species, O. communa was mainly recorded on Asteraceae, with low density and low degree of damage. Reduction of inflorescence size due to competitive vegetation and damage to male flowers by O. communa may diminish the amount of available pollen. The results of this study may be useful for the implementation of management measures to control A. artemisiifolia in agricultural areas using mixtures of native species.
Biosecurity measures are commonly used to prevent the introduction of non-native species to natural environments globally, yet the efficacy of practices is rarely tested under operational conditions. A voluntary biosecurity measure was trialled in the Norwegian high Arctic following concern that non-native species might be transferred to the region on the footwear of travellers. Passengers aboard an expedition cruise ship disinfected their footwear with the broad spectrum disinfectant Virkon S prior to and in-between landing at sites around the remote Svalbard archipelago. The authors evaluated the efficacy of simply stepping through a disinfectant foot bath, which is the most common practice of footwear disinfection aboard expedition cruise ships in the Arctic. This was compared to a more time consuming and little-used method involving drying disinfected footwear, as proposed by other studies. The two practices were evaluated by measuring microbial growth on paired footwear samples before and after disinfection under both conditions. Step-through disinfection did not substantially reduce microbial growth on the footwear. Allowing disinfected footwear to dry, however, reduced the microbial burden significantly to lower levels. Thus, the currently adopted procedures used aboard ships are ineffective at removing microbial burden and are only effective when footwear is given more time to dry than currently granted under operational conditions. These findings underscore results from empirical research performed elsewhere and suggest the need to better relay this information to practitioners. It is suggested that footwear should minimally be wiped dry after step-through disinfection as a reasonable compromise between biosecurity and practicability.
Vom 14. bis zum 16. September 2017 fanden am Institut für Germanistik der Universität Wrocław die VI. Linguistischen Treffen unter dem Titel 'Grenzen der Sprache, Grenzen der Sprachwissenschaft' statt. Die Treffen wurden vom Lehrstuhl für Deutsche Sprache und Lehrstuhl für Angewandte Linguistik veranstaltet
Im Folgenden werden für das östliche Ruhrgebiet bemerkenswerte Funde aufgeführt. Das Gebiet umfasst die Städte Gelsenkirchen, Essen, Herne, Bochum, Dortmund, Hagen und Hamm sowie die Kreise Recklinghausen, Unna und den Ennepe-Ruhr-Kreis. Zur besseren Auswertung sind hinter den Fundorten die MTB-Angaben (Topographische Karte 1:25.000) und ggf. eine Bewertung des Fundes für den hiesigen Raum und der floristische Status hinzugefügt. Funde aus dem östlichen Ruhrgebiet, die von nordrhein-westfälischer Bedeutung sind, sind im Beitrag BOCHUMER BOTANISCHER VEREIN (2018) aufgeführt. Die Zuordnung der Arten zu Pflanzenfamilien richtet sich nach PAROLLY & ROHWER (2016).
Factors that cause differential establishment among naturalized, invasive, and native species are inadequately documented, much less often quantified among different communities. We evaluated the effects of seed addition and disturbance (i.e., understory canopy removal) on the establishment and seedling biomass among two naturalized, two invasive, and two native species (1 forb, 1 grass in each group) within steppe and low elevation forest communities in eastern Washington, USA. Establishment within each plant immigrant class was enhanced by seed addition: naturalized species showed the greatest difference in establishment between seed addition and no seed addition plots, native and invasive species establishment also increased following seed addition but not to the same magnitude as naturalized species. Within seed addition plots, understory canopy disturbance resulted in significant increases in plant establishment (regardless of plant immigration class) relative to undisturbed plots and the magnitude of this effect was comparable between steppe and adjacent forest. However, regardless of disturbance treatment fewer invasive plants established in the forest than in the steppe, whereas native and naturalized plant establishment did not differ between the habitats. Individual biomass of naturalized species were consistently greater in disturbed (canopy removed) versus undisturbed control plots and naturalized species were also larger in the steppe than in the forest at the time of harvest. Similar trends in plant size were observed for the native and invasive species, but the differences in biomass for these two immigration classes between disturbance treatments and between habitats were not significant. We found that strong limitations of non-native species is correlated with intact canopy cover within the forest understory, likely driven by the direct or indirect consequences of low light transmittance through the arboreal and understory canopy. Considered collectively, our results demonstrate how seed limitation and intact plant ground cover can limit the abundance and performance of naturalized species in Pacific Northwest steppe and low elevation forest, suggesting that local disturbance in both habitats creates microsites for these species to establish and survive. Future studies evaluating interactions between multiple barriers to establishment using more representatives from each immigration class will further reveal how biotic interactions ultimately influence the demography and distribution of non-native plants within these communities.
In the face of increasing invasions and limited resources, appropriate management of invasive species requires prioritisation of species for management action. This process often relies on knowledge of species specific impacts. However, as studies explicitly measuring impact of marine alien species are rare, prioritisation of management actions is often based on studies from outside the geographic area of interest. Further, few impact studies account for context dependency (e.g. seasonal variability or distinct environmental regimes), raising the question of how transferrable knowledge about the impact of a species is between invaded ranges. This study addressed this question by using the widespread invasive solitary ascidian Ciona robusta as a case study for assessing impacts across two invaded regions: South Africa and California, USA. We replicated a previously conducted experiment from California that showed that C. robusta depresses local species richness in San Francisco Bay. Our South African experiment showed no effect of C. robusta on species richness, the Shannon-Weiner diversity index or community composition, despite experiments being carried out over two years and at two depths. While these results may reflect strong density dependency in the impact of C. robusta, they serve to highlight context dependency in invasive species impacts. This suggests that until studies of impact in marine systems become common place, context dependency should be explicitly addressed as a source of uncertainty during the prioritisation of species for management action.
Carbon mass of the non-indigenous predatory fishhook water flea Cercopagis pengoi (Ostroumov, 1891) from the eastern Gulf of Finland, the Baltic Sea, was for the first time measured using the high temperature combustion method. Prior to the analysis, individual dry weight of Cercopagis was determined; altogether ca. 500 organisms were examined. Mean individual dry weight of C. pengoi for July-September was estimated as 34.0 μg; carbon mass averaged 15.8 μg; carbon content, calculated as percent of dry weight, averaged 43.4%. Those values varied over months, mainly because of different population structure of C. pengoi and variation in their diet due to seasonal dynamics of the food objects. However, relations between carbon mass and dry weight for different months did not differ statistically (p<0.001). Therefore, the general polynomial regressions (k=2), describing carbon mass-to-dry weight and carbon content-to-dry weight relationships, were calculated for the entire dataset of individual measurements of C. pengoi body metrics. These data will contribute to adequate evaluation of food web structure and ecosystem alterations in various water bodies invaded by C. pengoi which has got a strong potential to pelagic food web transformations that may impact the overall energy balance and decrease the size of fish stocks.
Prioritization of introduction pathways is seen as an important component of the management of biological invasions. We address whether established alien plants, mammals, freshwater fish and terrestrial invertebrates with known ecological impacts are associated with particular introduction pathways (release, escape, contaminant, stowaway, corridor and unaided). We used the information from the European alien species database DAISIE (www.europe-aliens.org) supplemented by the EASIN catalogue (European Alien Species Information Network), and expert knowledge. Plants introduced by the pathways release, corridor and unaided were disproportionately more likely to have ecological impacts than those introduced as contaminants. In contrast, impacts were not associated with particular introduction pathways for invertebrates, mammals or fish. Thus, while for plants management strategies should be targeted towards the appropriate pathways, for animals, management should focus on reducing the total number of taxa introduced, targeting those pathways responsible for high numbers of introductions. However, regardless of taxonomic group, having multiple introduction pathways increases the likelihood of the species having an ecological impact. This may simply reflect that species introduced by multiple pathways have high propagule pressure and so have a high probability of establishment. Clearly, patterns of invasion are determined by many interacting factors and management strategies should reflect this complexity.
Humans have an extremely long history of transporting and introducing mammal species outside their native geographic ranges. The characteristics of the species introduced (taxonomy, life-history, ecology, environment) can all influence which traits are available (and selected) for establishment, and subsequent invasive spread. Understanding the non-randomness in species introductions is therefore key to understanding invasions by alien species. Here, we test for selectivity in the identities and traits of mammal species introduced worldwide. We compiled and analysed a comprehensive database of introduced mammal species, including information on a broad range of life history, ecological, distributional and environmental variables that we predicted to differ between introduced and non-introduced mammal species. Certain mammal taxa are much more likely to have been introduced than expected, such as Artiodactyls in the families Bovidae and Cervidae. Rodents and bats were much less likely to have been introduced than expected. Introduced mammal species have significantly larger body masses, longer lifespans and larger litter sizes than a random sample of all mammal species. They also have much larger native geographic ranges than expected, originate from significantly further north, from cooler areas, and from areas with higher human population densities, than mammal species with no recorded introductions. The traits and distributions of species help determine which have been introduced, and reflect how the evolutionary history of mammals has resulted in certain species with certain traits being located in the way of human histories of movement and demands for goods and services. The large amount of unexplained variation is likely to relate to the intrinsically stochastic nature of this human-driven process.
The fluvial systems in the north-east of the Iberian Peninsula are highly disturbed habitats, with widespread occurrence of alien species. Previous studies have shown that alien species have a major impact on native freshwater fauna, but it is not known what effect they have on semi-aquatic reptiles. Here the author investigated the factors that influence the occurrence of three species of semi-aquatic reptiles, one turtle (Mauremys leprosa) and two snakes (Natrix astreptophora and Natrix maura), at 261 sites in seven rivers/streams in Girona (north-eastern Spain). The studied semi-aquatic reptiles are habitat generalists which can occupy sections of rivers with altered regimes. The relationships of reptile presence to abiotic niche parameters and the presence of alien species were evaluated, as well as the patterns of pairwise co-occurrence between the reptiles. The presence of alien species did impact one out of three reptiles in this community. The association between both species of natricines was weakly negative, suggesting that interspecific competition does not structure their co-occurrences. The removal of alien species is the most appropriate strategy to preserve the complete diversity of native semi-aquatic reptiles.
The relevance of using various scoring schemes revealed by an impact assessment of feral mammals
(2018)
Impact scoring schemes are useful for identifying to what extent alien species cause damage. Quantifying the similarity and differences between impact scoring schemes can help determine how to optimally use these tools for policy decisions. Using feral mammals (including rats and mice) as a case study, environmental and socio-economic impacts were assessed using three schemes, namely the Generic Impact Scoring System (GISS), Environmental Impact Classification for Alien Taxa (EICAT) and Socio-Economic Impact Classification for Alien Taxa (SEICAT). The results show that socio-economic impacts scores differ between the respective schemes (GISS and SEICAT) possibly because they assess different aspects of social life and economy. This suggests that both scoring schemes should ideally be applied in concert to get a complete picture of socio-economic impacts. In contrast, environmental impact scores are correlated between GISS and EICAT assessments and this similarity is consistent over most mechanisms except for predation and ecosystems, suggesting that one scoring scheme is sufficient to capture all the environmental impacts. Furthermore, we present evidence for the island susceptibility hypothesis as impacts of feral mammals were found to be higher on islands compared to mainlands.
Impact assessment with different scoring tools: How well do alien amphibian assessments match?
(2017)
Classification of alien species' impacts can aid policy making through evidence based listing and management recommendations. We highlight differences and a number of potential difficulties with two scoring tools, the Environmental Impact Classification of Alien Taxa (EICAT) and the Generic Impact Scoring System (GISS) using amphibians as a case study. Generally, GISS and EICAT assessments lead to very similar impact levels, but scores from the schemes are not equivalent. Small differences are attributable to discrepancies in the verbal descriptions for scores. Differences were found in several impact categories. While the issue of disease appears to be related to uncertainties in both schemes, hybridisation might be inflated in EICAT. We conclude that GISS scores cannot directly be translated into EICAT classifications, but they give very similar outcomes and the same literature base can be used for both schemes.
Range expansion drives the evolution of alternate reproductive strategies in invasive fire ants
(2017)
Many species are expanding their ranges in response to climate changes or species introductions. Expansion-related selection likely drives the evolution of dispersal and reproductive traits, especially in invasive species introduced into novel habitats. We used an agent-based model to investigate these relationships in the red imported fire ant, Solenopsis invicta, by tracking simulated populations over 25 years. Most colonies of this invasive species produce two types of queens practicing alternate reproductive strategies. Claustral queens found new colonies in vacant habitats, while parasitic queens take over existing colonies whose queens have died. We investigated how relative investment in the two queen types affects population demography, habitat occupancy, and range expansion. We found that parasitic queens extend the ecological lifespan of colonies, thereby increasing a population’s overall habitat occupancy as well as average colony size (number of workers) and territory size. At the same time, investment in parasitic queens slowed the rate of range expansion by diverting investment from claustral queens. Divergent selection regimes caused edge and interior populations to evolve different levels of reproductive investment, such that interior populations invested heavily in parasitic queens whereas those at the edge invested almost entirely in claustral queens. Our results highlight factors shaping ant life histories, including the evolution of social parasitism, and have implications for the response of species to range shifts.
Plant traits are critical for understanding invasion success of introduced species, yet attempts to identify universal traits that explain invasion success and impact have been unsuccessful because environmenttrait- fitness relationships are complex, potentially context dependent, and variation in traits is often unaccounted for. As introduced species encounter novel environments, their traits and trait variability can determine their ability to grow and reproduce, yet invasion biologists do not often have an understanding of how novel environments might shape traits. To uncover which combination of traits are most effective for predicting invasion success, we studied three different urban habitat types along the Nile Delta in Egypt invaded by the Pink Morning Glory, Ipomoea carnea Jacq. (Family: Convolvulaceae). Over two years, we measured ten plant traits at monthly intervals along an invasion gradient in each habitat. No single trait sufficiently explained survival probability and that traits linked to invasion success were better predicted by the characteristics of the invaded habitat. While the measured traits did influence survival of I. carnea, the importance of specific traits was contingent on the local environment, meaning that local trait-environment interactions need to be understood in order to predict invasion.
The adoption of a consistent alien species pathways categorization, hierarchy and terminology is crucial for increasing the interoperability of different online databases. In the present paper the European Alien Species Information Network (EASIN) classification system of pathways is compared and discussed with the classification scheme recently published by the Convention on Biological Diversity (CBD). Although the main pathway categories of the two classifications overall match, there are substantial differences in their subcategorization, with EASIN including 20 pathway subcategories while CBD considers 44 subcategories. In most cases, each EASIN subcategory pathway can correspond to two or more CBD subcategories. About 5,500 species listed in EASIN do not match directly with the CBD pathway subcategories, most of which are terrestrial invertebrates. Aiming at achieving synchronization between the two classification systems and at facilitating the access to information to researchers and policy makers, EASIN is trying to align with the CBD pathway classification scheme. This alignment process requires the involvement of a large number of experts, especially from the terrestrial realm, and the adoption of commonly accepted definitions of the CBD pathways.
Das Hultschiner Ländchen ist heute ein Teil der Tschechischen Republik, in dem seit Jahrhunderten die mährischen/tschechischen, deutschen und polnischen sprachlichen und kulturellen Bevölkerungsgruppen zusammenlebten, wobei der deutsche Aspekt eine bestimmende Rolle spielte. In dieser Region wurde der vielseitig begabte Max Ring geboren, der als Arzt, Schriftsteller, Dramatiker und Journalist in Oberschlesien und vor allem in Berlin tätig war. In seinem autobiografischen Werk 'Erinnerungen' schildert Ring seine Kinderjahre im national und religiös liberalen Milieu des Heimatdorfes und die sozialen Verhältnisse im industriellen Oberschlesien genauso wie das Leben der Boheme in den Berliner literarischen Gesellschaften.
Robust predictions of alien species richness are useful to assess global biodiversity change. Nevertheless, the capacity to predict spatial patterns of alien species richness remains largely unassessed. Using 22 data sets of alien species richness from diverse taxonomic groups and covering various parts of the world, we evaluated whether different statistical models were able to provide useful predictions of absolute and relative alien species richness, as a function of explanatory variables representing geographical, environmental and socio-economic factors. Five state-of-the-art count data modelling techniques were used and compared: Poisson and negative binomial generalised linear models (GLMs), multivariate adaptive regression splines (MARS), random forests (RF) and boosted regression trees (BRT). We found that predictions of absolute alien species richness had a low to moderate accuracy in the region where the models were developed and a consistently poor accuracy in new regions. Predictions of relative richness performed in a superior manner in both geographical settings, but still were not good. Flexible tree ensembles-type techniques (RF and BRT) were shown to be significantly better in modelling alien species richness than parametric linear models (such as GLM), despite the latter being more commonly applied for this purpose. Importantly, the poor spatial transferability of models also warrants caution in assuming the generality of the relationships they identify, e.g. by applying projections under future scenario conditions. Ultimately, our results strongly suggest that predictability of spatial variation in richness of alien species richness is limited. The somewhat more robust ability to rank regions according to the number of aliens they have (i.e. relative richness), suggests that models of aliens species richness may be useful for prioritising and comparing regions, but not for predicting exact species numbers.
Various mechanisms can facilitate the success of plant invasions simultaneously, but may be difficult to disentangle. In the present study, plants of the range-expanding species Bunias orientalis from native, invasive and naturalised, not yet invasive populations were compared in a field common garden over two years. Plants were grown under two nitrate-regimes and multiple traits regarding growth, defence, antagonist loads and reproduction were measured. A rank-based clustering approach was used to assign correlated traits to distinct suites. These suites were analysed for "syndromes" that are expressed as a function of population origin and/or fertilisation treatment and might represent different invasion mechanisms. Indeed, distinct suites of traits were differentially affected by these factors. The results suggest that several preadaptation properties, such as certain growth characteristics and intraspecific chemical variation, as well as post-introduction adaptations to antagonists and resource availability in novel habitats, are candidate mechanisms that facilitate the success of invasive B. orientalis in parallel. It was concluded that rank-based clustering is a robust and expedient approach to integrate multiple traits for elucidating invasion syndromes within individual species. Studying a multitude of traits at different life-history and establishment stages of plants grown under distinct resource treatments reveals species-specific trade-offs and resource sinks and simplifies the interpretation of trait functions for the potential invasive success of plants.
Thirty-seven alien plant species, pre-identified by horizon scanning exercises were prioritised for pest risk analysis (PRA) using a modified version of the EPPO Prioritisation Process designed to be compliant with the EU Regulation 1143/2014. In Stage 1, species were categorised into one of four lists – a Residual List, EU List of Minor Concern, EU Observation List and the EU List of Invasive Alien Plants. Only those species included in the latter proceeded to the risk management stage where their priority for PRA was assessed. Due to medium or high spread potential coupled with high impacts twenty-two species were included in the EU List of Invasive Alien Plants and proceeded to Stage 2. Four species (Ambrosia trifida, Egeria densa, Fallopia baldschuanica and Oxalis pes-caprae) were assigned to the EU Observation List due to moderate or low impacts. Albizia lebbeck, Clematis terniflora, Euonymus japonicus, Lonicera morrowii, Prunus campanulata and Rubus rosifolius were assigned to the residual list due to a current lack of information on impacts. Similarly, Cornus sericea and Hydrilla verticillata were assigned to the Residual List due to unclear taxonomy and uncertainty in native status, respectively. Chromolaena odorata, Cryptostegia grandiflora and Sphagneticola trilobata were assigned to the Residual List as it is unlikely they will establish in the Union under current climatic conditions. In the risk management stage, Euonymus fortunei, Ligustrum sinense and Lonicera maackii were considered a low priority for PRA as they do not exhibit invasive tendencies despite being widely cultivated in the EU over several decades. Nineteen species were identified as having a high priority for a PRA (Acacia dealbata, Ambrosia confertiflora, Andropogon virginicus, Cardiospermum grandiflorum, Celastrus orbiculatus, Cinnamomum camphora, Cortaderia jubata, Ehrharta calycina, Gymnocoronis spilanthoides, Hakea sericea, Humulus scandens, Hygrophila polysperma, Lespedeza cuneata, Lygodium japonicum, Pennisetum setaceum, Prosopis juliflora, Sapium sebiferum, Pistia stratiotes and Salvinia molesta).
The value of plant ecological datasets with hundreds or thousands of species is principally determined by the taxonomic accuracy of their plant names. However, combining existing lists of species to assemble a harmonized dataset that is clean of taxonomic errors can be a difficult task for non-taxonomists. Here, we describe the range of taxonomic difficulties likely to be encountered during dataset assembly and present an easy-to-use taxonomic cleaning protocol aimed at assisting researchers not familiar with the finer details of taxonomic cleaning. The protocol produces a final dataset (FD) linked to a companion dataset (CD), providing clear details of the path from existing lists to the FD taken by each cleaned taxon. Taxa are checked off against ten categories in the CD that succinctly summarize all taxonomic modifications required. Two older, publicly-available lists of naturalized Asteraceae in Australia were merged into a harmonized dataset as a case study to quantify the impacts of ignoring the critical process of taxonomic cleaning in invasion ecology. Our FD of naturalized Asteraceae contained 257 species and infra-species. Without implementation of the full cleaning protocol, the dataset would have contained 328 taxa, a 28% overestimate of taxon richness by 71 taxa. Our naturalized Asteraceae CD described the exclusion of 88 names due to nomenclatural issues (e.g. synonymy), the inclusion of 26 updated currently accepted names and four taxa newly naturalized since the production of the source datasets, and the exclusion of 13 taxa that were either found not to be in Australia or were in fact doubtfully naturalized. This study also supports the notion that automated processes alone will not be enough to ensure taxonomically clean datasets, and that manual scrutiny of data is essential. In the long term, this will best be supported by increased investment in taxonomy and botany in university curricula.
Managing for biodiversity: impact and action thresholds for invasive plants in natural ecosystems
(2017)
Some studies examining the impacts of invasive plant species in native plant communities have demonstrated non-linear damage functions, whereby community components, such as species richness, are seemingly unaffected by the presence of an invader until it has attained relatively high levels of abundance, whereupon there is a marked decrease with further increases in abundance. Given chronic limitations in the resources available for managing invasive species, it has been argued that the most damaging invaders would be controlled most efficiently by maintaining their abundances below such threshold levels. Because many impact studies do not involve sampling over a wide range of invader abundances it is not possible to estimate the prevalence of threshold relationships. Furthermore, studies that have employed appropriate sampling methods have shown that different life forms exhibit different threshold responses, indicating that maintenance management for biodiversity values should be designed to protect the most sensitive species or groups of species. Since control costs increase with invader abundance, economic and ecological considerations are aligned when invaders are sustainably maintained at relatively low abundances. Adopting such an approach should also minimise negative impacts where damage functions are linear.
Die Echte Katzenminze, auch Katzenkraut, Katzenmelisse oder Steinmelisse genannt, ist eine alte Heilpflanze, die bereits von den Römern in Mitteleuropa kultiviert wurde. Ihre Ver-wilderungen gehörten zur typischen Flora der Dörfer, der Umgebung von Klöstern und Gehöften. Die Art tritt aber auch im Siedlungsbereich größerer Städte auf. Sie war in der nordrhein-westfälischen Flora zumindest im letzten Jahrhundert nie häufig und ist heute nur noch sehr selten zu finden (z. B. BECKHAUS 1893, HÖPPNER & PREUSS 1926, RUNGE 1990, HAEUPLER & al. 2003, GORISSEN 2015). Derzeit steht sie landesweit als stark gefährdet auf der Roten Liste (RL 2, RAABE & al. 2011), in einigen Großlandschaften wird sie sogar als "vom Aussterben bedroht" (RL 1) oder "ausgestorben" (RL 0) eingestuft. Dabei muss man aber wissen, dass aktuelle Vorkommen der Echten Katzenminze oft als neophytisch klassifi-ziert und deswegen nicht in der Roten Liste berücksichtigt werden. Hierbei drängt sich die Frage auf, inwiefern sich solche neophytischen Vorkommen überhaupt von anderen Vorkommen unterscheiden.
Robinia pseudoacacia L. (black locust) is a North American tree, considered controversial because of the conflict between multiple uses by humans and negative environmental impacts, which have resulted in it being listed among the most invasive species in Europe. The current management of Robinia stands in Central Europe varies locally according to national legislation, preferring either socio-economic benefits or biodiversity impacts. We collected field data from our target region of Czechia, reviewed research articles including local grey literature mostly from Central and Southern Europe, unpublished results of local projects and inquired relevant specialists. Because Robinia grows in habitats ranging from urban to forest to natural grassland, neither unrestricted cultivation nor large-scale eradication is applicable as a universal practice. In this paper we suggest a complex management strategy for Robinia stands that takes into account habitat, this species’ local ability to spread, as well as economic, cultural and biodiversity aspects. We categorized Robinia stands growing in Europe into eight groups and proposed stratified approach to the management based on decisions that reflect local context. Depending on that, the management includes (i) establishment of new plantations, (ii) maintenance or utilization of existing stands, (iii) tolerance
and (iv) conversion to original vegetation. Our complex management strategy will provide a comprehensive guideline for the management of alien trees in Europe.
This paper presents an analysis of the novel 'Die fremde Frau' by the writer Paul Zifferer (1879-1929) who came from Bystřice pod Hostýnem in Moravian Wallachia. It is a largely unknown, late naturalistic text which addresses national and social issues that were topical at the end of the 19th century. The novel offers a critical reflection on both bourgeois society and national tensions in Moravian Wallachia. It oscillates between conservativism and revolution, between historical authenticity and fiction. Moreover, the analysis shows that German literature from Moravian Wallachia deserves a serious and comprehensive exploration - as does Paul Zifferer's work, especially in the context of German or Austrian naturalism and aesthetic modernism.
Plant parasitic nematodes (PPN) are known to survive periods of desiccation, an ability that increases the risk of them surviving unintentional transport between countries. To investigate nematode survival in soil subject to prolonged storage, soil collected from a native forest and an organic orchard was stored separately in cupboards at ambient temperature for 36 months. Subsamples were taken at 0, 3, 6, 12, 13, 24 and 36 months to determine the presence of plant parasitic and total nematodes using a standard misting technique. Pratylenchus was used as a model to determine if PPNs that had been under prolonged storage were able to infect plant hosts at 13, 24 and 36 months. Overall, the total number of nematodes recovered from stored soil declined over time, with differences in species diversity determined by molecular methods, related to soil origin. No PPN were recovered in soil stored beyond 13 months using the three-day misting technique. By comparison, Pratylenchus nematodes, using a baiting method, were found to successfully invade host plant roots (ryegrass and white clover) even after 36 months storage and were observed to produce offspring at 13 months. Baiting was not effective for Pratylenchus found in soil originally collected from the forest but was for orchard soil, a result attributed to the lack of suitable host plants for the Pratylenchus species found in forest soil. This study demonstrated, that in protected environments, nematodes could survive for at least 36 months and were observed to produce offspring at 13 months. Baiting with a host plant was more sensitive in detecting nematodes than using the misting extraction technique, although this approach only works where the host plant is known. Without a priori knowledge of the nematode-plant host association, plant baiting may also produce false negatives. In the context of plant biosecurity and providing an accurate risk assessment in soil contaminants, the development of a generic test for PPN that induces nematodes in a resting stage to emerge and respond to a cue would enhance the probability of detection. However, as assessments at the border are often time limited, a molecular based bioassay that can be used to indicate the presence of multiple species of live PPN species may be a more feasible option for risk assessments.
In an era of global change, the process of biotic homogenisation by which regional biotas become more similar through time has attracted considerable attention from ecologists. Here, a retrospective look at the literature is taken and the question asked how comprehensive is the understanding of this global phenomenon? The goal is to identify potential areas for additional and future enquiries to advance this research frontier and best ensure the long-term preservation of biological diversity across the world. Six propositions are presented here to; (1) broaden our geographic and taxonomic understanding, (2) diversify the spatial and temporal scales of inquiry, (3) reconcile past and embrace new approaches to quantification, (4) improve our knowledge of the underlying drivers, (5) reveal the conservation implications and (6) forecast future homogenisation. It is argued that significant progress in the understanding of the causes, consequences and conservation implication of biotic homogenisation will come by integrating concepts and approaches from ecology, evolution and conservation across a hierarchy of spatial and temporal scales.
The paper provides an updated checklist of the alien flora of Turkey with information on its structure. The alien flora of Turkey comprises 340 taxa, among which there are 321 angiosperms, 17 gymnosperms and two ferns. Of the total number of taxa, 228 (68%) are naturalized and 112 (32%) are casual. There are 275 neophytes (172 naturalized and 103 casual) and 61 archaeophytes (52 naturalized and 9 casual); four species could not be classified with respect to the residence time. In addition, 47 frequently planted taxa with a potential to escape are also listed. The richest families are Asteraceae (38 taxa), Poaceae (30), Fabaceae (23) and Solanaceae (22). As for the naturalized alien plants, the highest species richness is found in Asteraceae (31 taxa), Poaceae (22), Amaranthaceae (18) and Solanaceae (15). The majority of alien taxa are perennial (63.8% of the total number of taxa with this life history assigned, including those with multiple life histories), annuals contribute 33.8% and 2.4% are biennial aliens. Among perennials the most common life forms are phanerophytes, of which 20.3% are trees and 12.6% shrubs; woody vines, stem succulents, and aquatic plants are comparatively less represented. Most of the 340 alien taxa introduced to Turkey have their native ranges in Americas (44.7%) and Asia (27.6%). Of other regions, 9.1% originated in Africa, 4.4% in Eurasia, 3.8% in Australia and Oceania and 3.5% in the Mediterranean. The majority of taxa (71.9%) were introduced intentionally, whereas the remaining (28.1%) were introduced accidentally. Among the taxa introduced intentionally, the vast majority are ornamental plants (55.2%), 10.0% taxa were introduced for forestry and 6.7% as crops. Casual alien plants are most commonly found in urban and ruderal habitats (40.1%) where naturalized taxa are also often recorded (27.3%). Plants that occur as agricultural weeds are typically naturalized rather than casual (16.0% vs 7.1%, respectively). However, (semi)natural habitats in Turkey are often invaded by alien taxa, especially by those that are able to naturalize.
Previously, we have synthesized a diverse range of 2,5-furandicarboxylic acid (FDCA)-based semiaromatic polyamides via enzymatic polymerization. This novel class of polymers are biobased alternatives to polyphthalamides, which are petrol-based semiaromatic polyamides. From a commercial perspective, they have interesting properties as high-performance materials and engineering thermoplastics. It is even more appealing to explore novel FDCA-based polyamides with added functionality, for the development of sustainable functional materials. Here, a set of FDCA-based heteroatom polyamides have been successfully produced via Novozyme 435 (N435)-catalyzed polymerization of biobased dimethyl 2,5-furandicarboxylate with (potentially)heteroatom diamines, namely, 4,9-dioxa-1,12-dodecanediamine (DODA), diethylenetriamine, and 3,3-ethylenediiminopropylamine. We performed the enzymatic polymerization in solution and bulk. The latter approach is more sustainable and results in higher molecular weight products. Among the tested heteroatom diamines, N435 shows the highest catalytic activity toward DODA. Furthermore, we find that all obtained FDCA-based heteroatom polyamides are amorphous materials with a relatively high thermal stability. These heteroatom polyamides display a glass-transition temperature ranging from 41 to 107 °C.
Alien plants were first recorded in 1937 in the 2 million ha Kruger National Park (KNP, a savanna protected area in South Africa), and attempts to control them began in the mid-1950s. The invasive alien plant control program expanded substantially in the late 1990s, but its overall efficacy has not been determined. We present an assessment of invasive alien plant control operations over several decades in KNP. We based our assessment on available information from a range of control programs funded from various sources, including national public works programs, KNP operational funds, and foreign donor funds. Over ZAR 350 million (~ US$ 27 million) has been spent on control interventions between 1997 and 2016. We found evidence of good progress with the control of several species, notably Opuntia stricta, Sesbania punicea, Lantana camara and several aquatic weeds, often because of effective biological control. On the other hand, we found that over one third (40%) of the funding was spent on species that have subsequently been recognised as being of lower priority, most of which were alien annual weeds. The allocation of funds to non-priority species was sometimes driven by the need to meet additional objectives (such as employment creation), or by perceptions about relative impact in the absence of documented evidence. We also found that management goals were limited to inputs (funds disbursed, employment created, and area treated) rather than to ecological outcomes, and progress was consequently not adequately monitored. At a species level, four out of 36 species were considered to be under complete control, and a further five were under substantial control. Attempts to control five annual species were all considered to be ineffective. On the basis of our findings, we recommend that more studies be done to determine impacts associated with individual invasive alien species; that the criteria used to prioritise invasive alien species be documented based on such assessments, so that management can justify a focus on priority species; and that funding be re-directed to those species that clearly pose greater threats, and for which other solutions (such as biological control) are not an option.
This paper analyzes serpentine figures in Eichendorff's novella 'Das Marmorbild', which are inscribed in the body of Venus in the mannerist style. These figurae serpentinatae gradually gain dynamism, move into the foreground of attention, and then condense into repulsive snake figures which evoke associations of the cunning snake of the Garden of Eden, the serpents on the back of the Frau Welt figure, and the fearsome Echidna of Greek mythology. These allusions also characterize the art which Venus represents as something abysmal and threatening. The multiple contextualization of the snake also reveals that 'Das Marmorbild' offers a double reading: in the narrower sense, Venus can be viewed as a representation of Romantic art, while in the wider sense she personifies art in general.