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Fremdsprachige Literatur impliziert bei Lernenden durchaus noch große Berührungsängste auch im fortgeschrittenen Stadium. Im Sinne einer sprachlichen und kulturellen Bildung sollte auf die Lektüre in der Originalsprache keinesfalls verzichtet werden. So wird insbesondere im deutschen Kulturraum das Vorlesen als Grundlage zur Entwicklung von Lesemotivation und Lesesozialisation eingesetzt. Das Vorlesen trägt in besonderer Weise zur Bildung, zur Sprachentwicklung, zur Aneignung der Kommunikations- und Ausdrucksfähigkeit bei. Durch Vorlesen kann der Zugang zur Literatur unterstützt und in unterschiedlichen Bildungsphasen gefördert werden. Untersuchungen haben nachgewiesen, dass das Vorlesen positive Auswirkungen auf die Lesemotivation und im Anschluss auf die Lesekompetenz haben kann. Wesentlich sind hier u.a. das Wissen der Lehrperson um die unterschiedlichen Vorlesephasen, sowie die Textauswahl. In diesem Beitrag geht es um die Relevanz des Vorlesens bei der Leseförderung im DaF/DaZ-Bereich, somit in der sprachlichen und kulturellen Bildung. Als Ausgangspunkt dient in diesem Kontext ein Blick auf die Vorlesetradition in der türkischen und deutschen Gesellschaft, um auf die unterschiedlichen Entwicklungen in der Vorlesekultur hinzuweisen. In diesem Rahmen liegt der Fokus auf der Frage: Wie kann die Literalität im Fremdsprachenunterricht eingesetzt werden, um das Erlernen einer Sprache zu unterstützen? Darauf aufbauend werden Erfahrungen von Lehrpersonen und empirische Ergebnisse zum Vorlesen in der deutschen Gesellschaft thematisiert und erlӓutert und einige Konzepte vorgestellt. Ausgehend davon werden schließlich Überlegungen und Möglichkeiten für die Praxis, sowie konkrete Tipps zur Umsetzbarkeit im DaF/ DaZ-Bereich am Beispiel von Uwe Timms Kinderroman "Die Zugmaus" diskutiert. In diesem Roman nimmt eine Maus die Leser auf eine Reise durch unterschiedliche Länder mit. Dadurch ist das Buch abwechslungsreich und spannend zugleich und zum Vorlesen besonders geeignet. Dies kann als Zeichen dafür gewertet werden, dass das Vorlesen als Leseförderungsmaßnahme für Jugendliche und junge Erwachsene auch im Studium Freude bereiten kann.
Begegnung mit orientalischer Kultur und orientalischen Denkmustern in den Romanen von Rafik Schami
(2018)
Rafik Schami gehört zu den Autoren mit Migrationserfahrung, und als solcher stellt er in seinem literarischen Schaffen den Blick des Deutschen (Okzidentalen) und den Blick des Orientalen auf die jeweils andere Kultur dar. Ziel der Untersuchung ist es, herauszufinden, wie Rafik Schami den Orient in seinen Romanen verarbeitet. Ferner wird versucht Antworten auf folgende Fragen zu finden: Welche kulturellen Aspekte werden in den für die Untersuchung ausgewählten Romanen reflektiert? Welche Erfahrungen werden in Bezug auf die kulturelle Fremdheit gemacht? In unserem Fall geht es um eine kontrastive Betrachtung der orientalischen Kultur und der westlichen Kulturen. Die Leser Schamis werden mit zwei Wertesystemen konfrontiert, was unwillkürlich zu einer Auseinandersetzung mit kulturellen Unterschieden führt. Dem Autor gelingt damit ein gesteigertes Interesse beim Leser zu erzielen sowie Verständnis und Sensibilität gegenüber beiden Kulturen zu wecken. Die für die Untersuchung herangezogenen Romane von Rafik Schami wurden nach dem hermeneutischen Ansatz und der werkimmanenten Methode im Rahmen literatur- und kulturwissenschaftlicher Theorien analysiert.
Als einer der wesentlichen und natürlichen Bestandteile der sprachlichen Kompetenz weisen Kollokationen sowohl in alltäglichen als auch in formellen Kommunikationssituationen einen elementaren Stellenwert auf. Für die Fremdsprachenlerner machen diese vorgeformten Mehrworteinheiten Produktionsschwierigkeiten aus, da sie in den meisten Fällen zahlreiche strukturelle und semantische Unterschiede zwischen Mutter- und zu lernender Fremdsprache aufweisen. Bei der Sprachproduktion neigen die Lerner häufig dazu, die Kollokationen in ihrer Muttersprache wörtlich in die Zielsprache zu übertragen, was vor allem im Falle von Divergenzen zu eventuellen Interferenzfehlern führen kann. Aus diesem Grund verdient die kontrastive Erfassung von Kollokationen in fremdsprachendidaktischer Diskussion ein besonderes Interesse. Ausgehend von diesen Diskussionen bezweckt die vorliegende Untersuchung primär, die somatischen Kollokationen im Deutschen und Türkischen im Rahmen der kontrastiven Phraseologie unter die Lupe zu nehmen und im Lichte dieser interlingualen Betrachtung die Äquivalenzbeziehungen zwischen beiden Sprachen in diesem lexikalischen Bereich darzulegen. Von den bei der Analyse beschriebenen Erkenntnissen sollen einige didaktische Folgerungen für türkische Deutschlerner abgeleitet werden.
The purpose of this study was to examine if prosodic patterns in oral reading derived from Recurrence Quantification Analysis (RQA) could distinguish between struggling and skilled German readers in Grades 2 (n = 67) and 4 (n = 69). Furthermore, we investigated whether models estimated with RQA measures outperformed models estimated with prosodic features derived from prosodic transcription. According to the findings, struggling second graders appear to have a slower reading rate, longer intervals between pauses, and more repetitions of recurrent amplitudes and pauses, whereas struggling fourth graders appear to have less stable pause patterns over time, more pitch repetitions, more similar amplitude patterns over time, and more repetitions of pauses. Additionally, the models with prosodic patterns outperformed models with prosodic features. These findings suggest that the RQA approach provides additional information about prosody that complements an established approach.
Crustal structure at the western end of the North Anatolian Fault Zone from deep seismic sounding
(2001)
The first deep seismic sounding experiment in Northwestern Anatolia was carried out in October 1991 as part of the "German - Turkish Project on Earthquake Prediction Research" in the Mudurnu area of the North Anatolian Fault Zone. The experiment was a joint enterprise by the Institute of Meteorology and Geophysics of Frankfurt University, the Earthquake Research Institute (ERI) in Ankara, and the Turkish Oil Company (TPAO). Two orthogonal profiles, each 120 km in length with a crossing point near Akyazi, were covered in succession by 30 short period tape recording seismograph stations with 2 km station spacing. 12 shots, with charge sizes between 100 and 250 kg, were fired and 342 seismograms out of 360 were used for evaluation. By coincidence an M b = 4.5 earthquake located below Imroz Island was also recorded and provided additional information on Moho and the sub-Moho velocity. A ray tracing method orginally developed by Weber (1986) was used for travel time inversion. From a compilation of all data two generalized crustal models were derived, one with velocity gradients within the layers and one with constant layer velocities. The latter consists of a sediment cover of about 2 km with V p » 3.6 km/s, an upper crystalline crust down to 13 km with V p » 5.9 km/s, a middle crust down to 25 km depth with V p » 6.5 km/s, a lower crust down to 39 km Moho depth with V p » 7.0 km/s and V p » 8.05 km/s below the Moho. The structure of the individual profiles differs slightly. The thickest sediment cover is reached in the Izmit-Sapanca-trough and in the Akyazi basin. Of particular interest is a step of about 4 km in the lower crust near Lake Sapanca and probably an even larger one in the Moho (derived from the Imroz earthquake data). After the catastrophic earthquake of Izmit on 17 August 1999 this significant heterogeneity in crustal structure appears in a new light with regard to the possible cause of the Izmit earthquake. Heterogeneities in structure are frequently also heterogeneities in strength and stress that impede or even lock rupture. The Izmit earthquake is discussed in relation to a large stepover or jog at the North Anatolian Fault.
Background The role of the Fcgamma receptor IIa (FcgammaRIIa), a receptor for C-reactive protein (CRP), the classical acute phase protein, in atherosclerosis is not yet clear. We sought to investigate the association of FcgammaRIIa genotype with risk of coronary heart disease (CHD) in two large population-based samples. Methods FcgammaRIIa-R/H131 polymorphisms were determined in a population of 527 patients with a history of myocardial infarction and 527 age and gender matched controls drawn from a population-based MONICA- Augsburg survey. In the LURIC population, 2227 patients with angiographically proven CHD, defined as having at least one stenosis [greater than or equal to]50%, were compared with 1032 individuals with stenosis <50%. Results In both populations genotype frequencies of the FcgammaRIIa gene did not show a significant departure from the Hardy-Weinberg equilibrium. FcgammaRIIa R(-131)->H genotype was not independently associated with lower risk of CHD after multivariable adjustments, neither in the MONICA population (odds ratio (OR) 1.08; 95% confidence interval (CI) 0.81 to 1.44), nor in LURIC (OR 0.96; 95% CI 0.81 to 1.14). Conclusion Our results do not confirm an independent relationship between FcgammaRIIa genotypes and risk of CHD in these populations.
Katerina Karakassi beleuchtet am Beispiel des Briefromans "Leandros" von Panagiotis Soutsos, wie in Griechenland selbst die politischen Wirren und die Belastung durch den Krieg literarisch ihren Niederschlag finden. Das Werk von Panagiotis Soutsos ist in der Hinsicht nicht nur ein Zeugnis der politischen Irrungen und Wirrungen seiner Zeit, sondern auch ein Exemplum der intellektuellen Bemühungen, anhand von abendländischem Gedankengut das Bewusstsein der jungen Nation zu untermauern. Dass dies kein leichtes Unternehmen war, zeigt auch der Briefroman "Leandros", den Panagiotis Soutsos 1834 veröffentlichte und dem dieser Beitrag gewidmet ist. Die Lektüre des Romans, die Karakassi hier vorschlägt, geht davon aus, dass das Werk nicht nur gewissermaßen als Manifest für die Gattung Roman fungieren sollte und somit auf den "modernen Bürger" samt seinen Neurosen als ein bedeutendes Sujet hinwies, sondern auch ein neues "nationales Subjekt" nach den Prämissen der politischen Romantik - wie Carl Schmitt sie später skizzierte - zu konzipieren suchte. Die immanenten Widersprüche der politischen Romantik sind jedoch auch im Roman von Panagiotis Soutsos sichtbar: Sie äußern sich als antinomische Ideologeme, als politischer Opportunismus, als intellektuelle und affektive Ambiguität gegenüber der Zukunft und der Vergangenheit der Nation. Dabei wird der neu gegründete Nationalstaat im Text transzendiert und der leitenden staatstheoretischen Metapher dieser Ära folgend, als eine organische Einheit jenseits des aktuellen politischen Treibens imaginiert. Dass dies letztlich nur eine Fiktion ist, suggeriert nicht nur der Selbstmord des Helden. Der Text verzichtet nämlich gänzlich auf eine Herausgeberfiktion und benennt somit implizit den Ort, in dem die nationale Identität gesichert werden kann: in der Imagination, in der Literatur, in der Kunst.
The development of resistance to chemotherapeutic agents, such as Doxorubicin (DOX) and cytarabine (AraC), is one of the greatest challenges to the successful treatment of Acute Myeloid Leukemia (AML). Such acquisition is often underlined by a metabolic reprogramming that can provide a therapeutic opportunity, as it can lead to the emergence of vulnerabilities and dependencies to be exploited as targets against the resistant cells. In this regard, genome-scale metabolic models (GSMMs) have emerged as powerful tools to integrate multiple layers of data to build cancer-specific models and identify putative metabolic vulnerabilities. Here, we use genome-scale metabolic modelling to reconstruct a GSMM of the THP1 AML cell line and two derivative cell lines, one with acquired resistance to AraC and the second with acquired resistance to DOX. We also explore how, adding to the transcriptomic layer, the metabolomic layer enhances the selectivity of the resulting condition specific reconstructions. The resulting models enabled us to identify and experimentally validate that drug-resistant THP1 cells are sensitive to the FDA-approved antifolate methotrexate. Moreover, we discovered and validated that the resistant cell lines could be selectively targeted by inhibiting squalene synthase, providing a new and promising strategy to directly inhibit cholesterol synthesis in AML drug resistant cells.
Nach dem letzten Germanistikkongress 2009 in Izmir wurde der zwölfte Germanistikkongress unter dem Motto "Migration und kulturelle Diversität" vom 12. bis 14. Mai 2014 an der Universität Kocaeli veranstaltet. Bei der Veranstaltung des Kongresses hat der türkische Germanistenverband GERDER aktiv mitgewirkt. Der DAAD, das Goethe Institut Ankara, das Österreichische Kulturinstitut und das Schweizer Konsulat Istanbul haben zur Organisation des Kongresses beigetragen, indem sie die Einladung von Professoren zu Plenarvorträgen und die Verwirklichung kultureller sowie sozialer Aktivitäten, wie Konzert und Abendessen unterstützen.
Kovid 19 pandemi sürecinin başlamasıyla Türkiye'de üniversitelerdeki her bölüm, derslerini sahip oldukları uzaktan eğitim olanakları çerçevesinde sürdürmek zorunda kalmıştır. Beklenmeyen bu durum, eğitim sürecinde birçok öğretim alanında olduğu gibi Almanca öğretiminde de birçok problemi beraberinde getirmiştir. Bu bağlamda bu çalışmanın amacı pandemi sürecine bağlı olarak uzaktan eğitimin Almanca eğitimine etkilerini Kovid 19 pandemi süreci ve kısıtlamalara ilişkin genel görüşler, alınan eğitimin uzaktan olmasına ilişkin olumlu ve olumsuz görüşler, teknolojik donanım, öğretim etkinlikleri, materyal boyutu, etkileşim, ölçme ve değerlendirme boyutu ve uzaktan eğitim sürecine ilişkin öneriler olmak üzere sekiz tema altında, Almanca öğretmenliği lisans programında öğrenim görmekte olan öğrencilerin deneyimleri ve görüşleri doğrultusunda araştırmaktır. Bu amaca ulaşmak için nitel araştırma deseni kapsamında olgubilim yöntemi kullanılmıştır. Çalışmanın araştırma grubu Muğla Sıtkı Koçman Üniversitesi Eğitim Fakültesi Almanca Öğretmenliği lisans Programında öğrenim gören öğrencilerden oluşmaktadır. Almanca öğretmeni adaylarının uzaktan eğitime ilişkin görüşlerinin belirlenmesi amacıyla veri toplama tekniklerinden biri olan yarı yapılandırılmış görüşme tercih edilmiştir. Araştırmanın tüm verileri çevrimiçi ortamda videokonferans yoluyla yapılan görüşmelerden elde edilen verilerden oluşmaktadır. Görüşme tekniğiyle elde edilen verilerin analiz edilmesinde betimsel analiz kullanılmıştır. Araştırma sonucunda genel olarak uzaktan eğitimin günlük yaşama ve eğitim hayatına olumsuz etkilerinin daha fazla olduğu sonucuna ulaşılmıştır. Elde edilen bulgulardan Almanca öğretmenliği programındaki alan derslerinin uzaktan eğitime uygun olmadığı, uzaktan eğitim yönteminin 4 temel dil becerisini geliştirmede yeterli olmadığı; ancak uzaktan eğitim sürecinin az da olsa alıcı becerileri geliştirdiği; üretimsel becerileri ise geliştirmediği anlaşılmaktadır.
Yabancı dil öğrenim ve öğretim sürecinde birçok problemle karşılaşmaktayız. Bunun birçok nedeni olmasına rağmen en önemli sorunlardan biri de öğrenme malzemesinin öğrenene anlamlı gelmemesi, aktarılmak istenen konuyla öğrenen arasında köprünün kurulamaması ve öğrenenin öğrenme girdisini içselleştirememesidir. Bunun çözümü olarak da ‒ anlamlı bir öğrenmenin gerçekleşebilmesi için ‒ şekil ve işlev arasındaki ilişkiye dikkat edilmelidir, çünkü anlamlı öğrenme malzemeleri, öğrenen açısından büyük bir öneme sahip ve vazgeçilmezdir. Fakat bu durum öğreten için büyük bir sorumluluk ve işyükü anlamına gelmektedir. Çalışmamızda dilbilgisi dersinde şekil ve işlev arasındaki ilişki Konjunktiv (dilek kipi) konusu ele alınıp dilin şekil ve işlev yönü dikkate alınaraköğrenene aktarılmaya çalışıldı. Geleneksel yabancı dil derslerinde genellikle dilbilgisel yapılar, dilin işlevsel yönüne vurgu yapılmaksızın şekil yönüyle öğrenene aktarılmakta ve öğrenme kazanımı, öğrenen tarafından ezberlenmiş dilbilgisel bir yapı olmaktan çıkamamaktadır. Bu durumda öğrenen edindiği dilbilgisel yapıyı ne konuşma becerisine ne de özellikle yazma becerisine aktarabilmektedir. Öğrenen söz konusu yapıyı nerde, hangi durumda ve nasıl kullanacağını anlayamamakla birlikte konuyu içselleştirememektedir. Bu şekilde düzenlenmiş bir ders çıktısı öğrenci açısından yararlı olmaması nedeniyle çağdaş eğitim anlayışıyla örtüşmemektedir.
Çalışmamızda yabancı dil öğrenim ve öğretim sürecinde öncelikle sadece dilin şekilsel yönüne dikkat çekildiği düşüncesinden hareket ettik. Dilbilgisel yapıyı aktarırken öncelikle öğrenende dil bilinci oluşturarak öğrenme malzemesinin işlevinin biçimden önce ön plana çıkarılması gerektiğini göstermek istedik. Dilin şekil yönünün işlev yönünün anlaşılmasını engellemesinin önüne geçilmesi gerektiğini belirterek öğrenme malzemesi kullanımının önemini örneklerle açıklamaya çalıştık.
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.
Ölçme ve değerlendirme birçok alanda olduğu gibi yabancı dil öğretiminde de büyük bir öneme sahiptir. Ölçme işlemi, öğrenciye not vermenin yanı sıra öğretim sürecinin, programın, yöntemin etkililiği gibi birçok amaç için de yapılmaktadır. Öğretim sürecinin etkililiğini belirlemek için ise amaca hizmet eden ölçme araçlarının hazırlanması önemli bir unsurdur. Almanca dilbilgisi dersinin ölçme sürecinde genellikle boşluk doldurma, eşleştirme gibi ölçme teknikleri kullanılmaktadır. Ancak bu özellikteki ölçme araçları, dilin biçimsel yönünün ölçülmesini sağlarken; dilin kullanım yönünü ölçmede yetersiz kalmaktadır. Bu bağlamda bu çalışmanın amacı Almanca dilbilgisi derslerinde etkili bir ölçme ve değerlendirme yapabilmek için kullanılan ölçme araçlarının hangi özelliklere sahip olması gerektiği, ölçme aracı hazırlarken soruların nitelikleri, yapısı, ölçme aracının amaca hizmet etmesi için hangi özelliklere sahip olması gerektiğine ilişkin önerilerde bulunmaktır. Çalışmanın sonucunda ölçme ve değerlendirme sürecine işlevsellik kazandırmak amacıyla alternatif ölçme araçlarının kullanılması gerektiği vurgulanarak Almanca dilbilgisi dersinin ölçme ve değerlendirme aşamasında kullanılabilecek alternatif ölçme ve değerlendirme tekniklerine ilişkin önerilerde bulunulmuştur.
Bureschia serbica sp. nov., is described from a cave in the Stara Planina Mt in Serbia as a second species in the genus. It is a troglobite amphibious species, predominantly aquatic like the nominal species of the genus, Bureschia bulgarica. The new species is adapted to amphibious life in running groundwater, unlike the nominal one that lives in subterranean lakes and ponds. Body structure changes, most noticeable the significant changes in the structure of the mouthparts, as a result of preadaptation in aquatic and amphibious Synocheta, are discussed.
Two new opilionid species from suborder Cyphophthalmi, family Sironidae, Siro franzi Karaman & Raspotnig sp. nov. and Siro ozimeci Karaman sp. nov., from Austria and Croatia respectively, are described and illustrated. Both species show a close relation to two other relict sironid species from the southern and eastern parts of the Alps, Siro valleorum and Siro crassus. All four species are treated here as a monophyletic, alpine group of genus Siro, opposed to the remaining two European sironids, S. rubens and S. carpaticus (palaeoeuropean Siro group). The history of the alpine Siro group parallels the history of a part of the dynamic European archipelago in the Mediterranean Tethys area, which became a part of the Alpine orogeny. Diversification of the alpine Siro group is the result of the orogenic evolution of the Alps, linked to the Austroalpine and South Alpine tectonic units.
Balkan populations of Rafalskia olympica (KULCZYNSKI, 1903) are distinguished as separate subspecies Rafalskia olympica bulgarica ST ARI::GA, 1963 novo stat. Certain novel details of the R. olympica female body structure are presented. It is stated that Metaplatybunus drenskii SILHAVY, 1965 is not a synonym of R. olympica.
A new family of Cyphophthalmi with disjunct Mediterranean distribution, Parasironidae fam. nov., is proposed. The new family comprises four genera and seven species. Cimmerosiro gen. nov., Tirrenosiro gen. nov. and Ebrosiro gen. nov. are described as new genera, and Tirrenosiro axeli gen. et sp. nov., Cimmerosiro krivolutskyi gen. et sp. nov., C. juberthiei gen. et sp. nov. and C. rhodiensis gen. et sp. nov. as new species. Parasironidae stands out by a set of characteristics that we recognize as predominantly plesiomorphic. These characteristics and the present distribution indicate the great age of the family, probably early Mesosoic. We attribute its origin to the western part of the Cimmerian terrane, and its current distribution and diversification of the major clades to geotectonic events during the Mesozoic. Additionally, a new sensory organ (sensilla) has been discovered in Cyphophthalmi. This organ is located on the pedipalp coxae and is believed to have a potential hygroreceptive function.
Leukemia cells reciprocally interact with their surrounding bone marrow microenvironment (BMM), rendering it hospitable to leukemia cell survival, for instance through the release of small extracellular vesicles (sEVs). In contrast, we show here that BMM deficiency of pleckstrin homology domain family M member 1 (PLEKHM1), which serves as a hub between fusion and secretion of intracellular vesicles and is important for vesicular secretion in osteoclasts, accelerates murine BCR-ABL1+ B-cell acute lymphoblastic leukemia (B-ALL) via regulation of the cargo of sEVs released by BMM-derived mesenchymal stromal cells (MSCs). PLEKHM1-deficient MSCs and their sEVs carry increased amounts of syntenin and syndecan-1, resulting in a more immature B-cell phenotype and an increased number/function of leukemia-initiating cells (LICs) via focal adhesion kinase and AKT signaling in B-ALL cells. Ex vivo pretreatment of LICs with sEVs derived from PLEKHM1-deficient MSCs led to a strong trend toward acceleration of murine and human BCR-ABL1+ B-ALL. In turn, inflammatory mediators such as recombinant or B-ALL cell–derived tumor necrosis factor α or interleukin-1β condition murine and human MSCs in vitro, decreasing PLEKHM1, while increasing syntenin and syndecan-1 in MSCs, thereby perpetuating the sEV-associated circuit. Consistently, human trephine biopsies of patients with B-ALL showed a reduced percentage of PLEKHM1+ MSCs. In summary, our data reveal an important role of BMM-derived sEVs for driving specifically BCR-ABL1+ B-ALL, possibly contributing to its worse prognosis compared with BCR-ABL1− B-ALL, and suggest that secretion of inflammatory cytokines by cancer cells in general may similarly modulate the tumor microenvironment.
In der letzten Zeitwende haben sich viele Forscher den neuesten zeitgenössischen Sprachlernmethoden und Techniken für einen effektiveren Sprachunterricht gewidmet. Diese Veränderungstendenzen in Lehr- und Lernpädagogik erfordern in ihrer Umsetzung die individuelle Führung des Lerners. In diesem Zusammenhang entwickeln sich Konzepte der Beratungslehre. Unter diesem Aspekt wurde unter einer 12 Wochen langen, vielseitigen Forscher/Berater-Beobachtung im Studienjahr 2018-2019 eine Aktionsforschung in der Deutschlehrerausbildungsabteilung der Universität Trakya in Edirne durchgeführt. Beabsichtigt wurde dabei, eine institutionell eingerahmte, professionell konzipierte Sprachlernberatung mit Fokus Schreiben zu realisieren. Fernerhin wird in dieser Forschung der Problemfrage, ob DaF-Lerner durch eine individuelle Schreiblernberatung ihren Schreibprozess fördern können, nachgegangen. Die Schreiblernberatungen werden nach einem von der Forscherin eigenständig gestalteten Model durchgeführt. Die Datensammlungen verlaufen zweiteilig quantitativ und qualitativ. Die Resultate der Forschung zeigen, dass von der Sprachlernberatung profitiert wird, diesbezüglich Blockaden und Defizite beim Deutsch Schreiben behoben werden. In diesem weiterführenden Beitrag werden anhand eines Fallballspieles der Forschungsprozess und die Ergebnisse repräsentativ dargelegt.
Why does the schooling gap close while the wage gap persists across country income comparisons?
(2023)
The schooling gap diminishes because the services sector becomes more pronounced for high-income countries, and the paid hours gap closes. Although gender wage inequality persists across country income groups, differences in schooling years between females and males diminish. We assemble a novel dataset, calibrate a general equilibrium, multi-sector, -gender, and -production technology model, and show that gender-specific sectoral comparative advantages explain the paid hours and schooling gap decline from low- to high-income economies even when the wage gap persists. Additionally, our counterfactual analyses indicate that consumption subsistence and production share heterogeneity across both income groups and genders are essential to explain the co-decline of the schooling and paid hours gaps. Our results highlight effective mechanisms for policies aiming to reduce gender inequality in schooling and suggest that the schooling gap decline and the de-invisibilization of female paid work observed in high-income countries are linked by structural sector movements instead of wage inequality reductions.
Ziel dieser Studie ist es, die Identitätsbildung mit der Fremdsprache bei DaF-Lehramtstudierenden anhand eines Stummfilms zu untersuchen. Es wird der Beitrag der Stummfilme und der Lehramtstudierenden mit und ohne Auslandserfahrung zur Identität mit der zu erlernenden Sprache herausgearbeitet. Als Forschungsfragen gelten: 1- Wie handeln die DaF-Lehramtstudierendenmit und ohne Deutschland-Erfahrung ineiner Gruppe? 2- Imitieren die Lehramtstudierenden ohne Deutschland-Erfahrung die Lehramtstudierenden mit Deutschland-Erfahrung? 3- Fördern sie sich gegenseitig in der Fremdsprache? Diese Studie basiert aus der Sicht des symbolischen Interaktionismus auf einer qualitativen, pragmatischen Betrachtungsweise, die die Perspektive der Soziologie in Bezug zur symbolischen Kommunikation, ausgehend von der Betrachtungsweise Meads, in die Fremdsprachenlehre anzuwenden versucht. Während der Vorführung des Stummfilms wurden an bestimmten Stellen des Vorspielens gestoppt und die Kommentare der Studenten aufgenommen. Nach der Durchführung wurde im offenen Plenar nach ihrer Ansicht und ihrer Bildung zur Identität durch die Zielsprache anhand von halbstrukturierten Interviewfragen nachgefragt, inwieweit Stummfilme zur Übernahme der Handlungsweisen der zu erlernenden Sprache und ihrem Selbstbewusstsein beitragen, die durch die symbolische Kommunikation den bestimmten gesellschaftlichen Prozessen entsprechen. Durch diesen Beitrag wird die Bildung der Identität der Fremdsprachenlerner mit der Gesellschaft, deren Sprache sie lernen, dargelegt und sie soll auf weitere qualitative Analysen in der Fremdsprachenlehre als Grundlage dienen können.
Uzaktan eğitim yaklaşık 200 sene önce mektup aracılığı ile yapılan steno dersleriyle başlamış olsa da kavramın sistematik olarak eğitimde uygulanması teknolojinin gelişmesiyle paralellik gösterir. Yüz yüze eğitimin belirli bir zamanı, mekânı gerektirmek gibi bazı sınırlılıkları vardır. Yeni medyanın insanların hayatına girmesi ile iletişimin şeklinin değişmesi, bilim insanlarının uzaktan eğitime ilgisini arttırmıştır. Çünkü teknolojik ilerlemeler eğitim sistemini kökten değiştirebilecek duruma gelmiştir ve yüz-yüze eğitimdeki zamana ve mekâna bağlı olma zorunluluğunu ortadan kaldırabilecek potansiyele sahiptir. Bu durum dil öğrenen insanlara daha bireysel ve öz yönetimli öğrenme imkanı sağlar. Uzaktan eğitime dair birçok tanımlama çeşitli kuramlar çerçevesinde yapılmıştır. "Uzaktan Eğitim" teknolojinin sunduğu imkânlar ölçüsünde daima geliştirilmeye açık bir eğitim biçimidir. Bazı ülkeler uzaktan eğitimin önemini daha önce görmüş ve bu konuda yoğun çaba göstermişlerdir. Bu çabalar sonucu uzaktan eğitim, geleneksel eğitime hem bir yol arkadaşı hem de onun ezeli rakibi olabilecek duruma gelmiştir. Bireyselleşme olgusunun gün geçtikçe arttığı ve ortamdan bağımsız öğrenme imkânlarının çok kolaylaştığı 2000'li yıllar eğitimde teknolojiyle bütünleşmiş bir dönüşümü zorunlu hale getirmiştir. Birbiri içine bu denli girmiş çok değişkenli süreçler, eğitim-öğretimde öğrenci ve öğretmenlerin geleneksel görev ve sorumluluklarını da değiştirmektedir. Dil öğrenenlerin kendi başlarına öğrenme ortamlarını düzenleyebilmeleri ve bu ortamlardan verimli şekilde yararlanabilmeleri için sınıf içi ve sınıf dışı öğrenme ortamlarının eğitsel ilkeler açısından düzenlenmesi gerekmektedir. Bu amaca ulaşabilmek için dil öğretimi ile ilgilenen kişilerin özerk öğrenmeyi etkileyen etkenleri ve onların öğretimde nasıl uygulanacağını bilmeleri gerekmektedir. Bu çalışmanın amacı uzaktan eğitim kavramını genel hatları ile tanıtmak, uzaktan eğitimde öğrenci özerkliği kavramının ortaya çıkışını temel kuramlar çerçevesinde incelemek ve bu kapsamda dil öğrenme özerkliğini tartışmaktır.
Although overexpression and hyperactivity of protein kinases are causative for a wide range of human cancers, protein kinase inhibitors currently approved as cancer drugs address only a limited number of these enzymes. To identify new chemotypes addressing alternative protein kinases, the basic structure of a known PLK1/VEGF-R2 inhibitor class was formally dissected and reassembled. The resulting 7-(2-anilinopyrimidin-4-yl)-1-benzazepin-2-ones were synthesized and proved to be dual inhibitors of Aurora A kinase and VEGF receptor kinases. Crystal structures of two representatives of the new chemotype in complex with Aurora A showed the ligand orientation in the ATP binding pocket and provided the basis for rational structural modifications. Congeners with attached sulfamide substituents retained Aurora A inhibitory activity. In vitro screening of two members of the new kinase inhibitor family against the cancer cell line panel of the National Cancer Institute (NCI) showed antiproliferative activity in the single-digit micromolar concentration range in the majority of the cell lines.
In dieser Arbeit soll der Einsatz von Filmen als audiovisuelles Unterrichtsmaterial im Fremdsprachenunterricht erörtert werden. Bei räumlichen und kulturellen Entfernungen zum Zielsprachenland ermöglicht Filmmaterial sprachliche und landeskundliche Inhalte in den Unterricht zu bringen. In diesem Rahmen bieten Filme, die Alltagssprache und Alltagsthemen des Zielsprachenlandes präsentieren, vielfältige Einsatzmöglichkeiten zur Erweiterung der sprachlichen und kulturellen Kompetenzen von Lernenden. Kein anderes Medium verfügt über ein so hohes Potential, die Neugierde der Lerner auf das Zielsprachenland und seine Menschen zu wecken, die Lerner zu motivieren, Emotionen auszulösen und Sprech- und Diskussionsanlässe zu schaffen. Der Einsatz von Filmen leistet einen wichtigen Beitrag zur Gestaltung von effizientem Fremdsprachenunterricht.
Tagungsbericht zu 'Comparative Arts - Neue Ansätze zu einer universellen Ästhetik'. 14. Tagung der DGAVL in Münster, 26. bis 28. November 2008
Unter dem Titel 'Comparative Arts - Ansätze zu einer universellen Ästhetik' veranstaltete die DGAVL vom 26. bis zum 28.11. 2008 in Münster ihre 14. turnusmäßige Tagung.
The HADES experiment provides a large acceptance combined with a high mass resolution and therefore makes it possible to study dielectron and hadron production in heavy-ion collisions with unprecedented precision. With the high statistics of seven billion Au+Au collisions at 1.23 AGeV recorded in 2012 the investigation of collective effects and particle correlations is possible with unprecedented accuracy. We present multi-differential data on directed (v1) and elliptic (v2) flow, and the first measurement of triangular flow (v3), of protons and deuterons.
HADES has a large acceptance combined with a good mass-resolution and therefore allows the study of dielectron and hadron production in heavy-ion collisions with unprecedented precision. With the statistics of seven billion Au-Au collisions at 1.23A GeV recorded in 2012, the investigation of higher-order flow harmonics is possible. At the BEVALAC and SIS18 directed and elliptic flow has been measured for pions, charged kaons, protons, neutrons and fragments, but higher-order harmonics have not yet been studied. They provide additional important information on the properties of the dense hadronic medium produced in heavy-ion collisions. We present here a high-statistics, multidifferential measurement of v1 and v2 for protons in Au+Au collisions at 1.23A GeV.
Die deutsche Literatur ist ohne die Märchen der Gebrüder Grimm nicht zu denken. Sie verkörpern die deutsche Kultur und sind sowohl für Kinder und Jugendliche als auch für Erwachsene geeignet. Neben der Kulturvermittlung von Generation zu Generation haben die Märchen der Gebrüder Grimm den Zweck, das Volk zu belehren und aufzuklären. Die Märchen sind nicht nur in europäischen Ländern gängig, sondern stoßen auch in anderen Ländern wie Georgien, Aserbaidschan und der Türkei auf großes Interesse. Die vorliegende Arbeit hat die Absicht, orientalische Einflüsse in den georgischen, aserbaidschanischen und türkischen Märchenübersetzungen der Gebrüder Grimm zu analysieren und diese zu deuten. Hierfür wird von den Märchen "Rotkäppchen" und "Der Wolf und die sieben Geißlein" Gebrauch gemacht. Parallel dazu werden die Übersetzungen mit der deutschen Ausgangssprache in Vergleich gesetzt und somit sowohl Differenzen als auch Gemeinsamkeiten aufgezeigt.
Background: Ambroxol relieves cough symptoms based on its secretagogue, anti-inflammatory, anti-oxidant, anti-bacterial, anti-viral, immunomodulatory and local anesthetic effects. The present study was designed to explore differential patient profiles and efficacy against acute respiratory symptoms of four formulations registered as over-the-counter medicines.
Methods: Nine hundred sixty-five pharmacy customers purchasing one of four branded ambroxol formulations (extended release capsules, adult syrup, pediatric syrup and soft pastilles) filled a questionnaire including a patient-adapted version of the Bronchitis Severity Scale, several questions on degree of impairment by acute cough, time to onset of symptom relief and duration of treatment. Data on pediatric syrup users were entered by their parents. Based on the exploratory character of the study, no hypothesis-testing statistical analysis was applied.
Results: Users of the pediatric syrup and the pastilles reported somewhat less severe baseline symptoms. The patient-adapted Bronchitis Severity Scale proved feasible as a self-administered tool. Among BSS items, ambroxol formulations improved chest pain while coughing to the largest and sputum to smallest degree (− 75% vs. -40%). Reported efficacy was comparable among formulations with minor differences in favor of the pediatric syrup. Time to onset of symptom relief was less than 60 min in more than 90% of patients and occurred prior to known systemic tmax. Time to onset was the parameter with the greatest differences between formulations, being reported fastest with pastilles and pediatric syrup and, as expected, slowest with extended release capsules. All ambroxol formulations were well tolerated.
Conclusions: We conclude that over-the-counter formulations of ambroxol exhibit comparable user profiles and efficacy. Differences in speed of onset of symptom relief may involve not only those in systemic pharmacokinetics but also local anesthetic effects of immediate release formulations. Differences between pediatric and adult syrup may in part reflect reporting bias.
Background: The objective of the FAVOR study was to evaluate the effect of indacaterol/glycopyrronium (IND/GLY) versus tiotropium on peak forced expiratory volume in 1 s (FEV1) and also to investigate patient satisfaction and treatment preference.
Methods: Patients with moderate-to-severe airflow limitation (FEV1/forced vital capacity ratio of <0.70), those with a COPD assessment test score of ≥10, and those who were maintained on tiotropium HandiHaler® therapy prior to enrollment were recruited for the study, and randomized (1:1) to receive either 4 weeks open-label IND/GLY (110/50 µg) once daily followed by 4 weeks of tiotropium (18 µg) once daily or vice versa. The primary endpoint was FEV1 1 h post-inhalation after 4 weeks of treatment. Other endpoints included patient’s and physician’s preference for treatment, patient’s satisfaction evaluated using a study-specific questionnaire and the abbreviated Treatment Satisfaction Questionnaire for Medication, and safety and tolerability.
Results: Eighty-seven out of 88 randomized patients completed the study and showed significantly higher FEV1 1 h post-inhalation after 4 weeks of treatment with IND/GLY versus tiotropium (treatment difference =0.081 L; p=0.0017). IND/GLY was preferred over tiotropium among the patients (69.4% versus 30.6%, p=0.0004) and the physicians (81.6% versus 18.4%, p<0.0001). A higher proportion of the patients stated they were very satisfied or satisfied with IND/GLY versus tiotropium with regard to dyspnea reduction (79.3% versus 58.0%, respectively) and reduction of dyspnea on exertion (72.4% versus 43.2%, respectively). Patients treated with IND/GLY showed significant improvement in Treatment Satisfaction Questionnaire for Medication domain scores versus tiotropium. IND/GLY demonstrated a good safety and tolerability profile.
Conclusion: This study indicated that, beyond FEV1, important patient-reported outcomes improved with the open-label dual bronchodilator IND/GLY when compared with tiotropium. This study suggests that individual patients felt the lung function benefits with IND/GLY compared with tiotropium, which, in turn, may also have contributed to the preference for IND/GLY.
Purpose: DINO and DACOTA were prospective, noninterventional studies assessing the health status and quality of life of patients with COPD newly treated with roflumilast 500 µg once-daily add-on therapy.
Patients and methods: Patients were evaluated over 6 months. Clinical COPD questionnaire (CCQ) and COPD assessment test (CAT) scores were recorded at baseline and after 3 and 6 months. In DACOTA, post-bronchodilator FEV1 was recorded at each time point.
Results: Of 5,462 and 3,645 patients recruited into DINO and DACOTA, respectively, 3,274 patients in DINO and 916 patients in DACOTA completed the 6-month visit. Almost all patients had severe or very severe airway obstruction; mean baseline CCQ total score was 3.9 in DINO and 3.7 in DACOTA. Overall, 33.8% of patients in DACOTA and 30.6% in DINO discontinued treatment prematurely. Significant and clinically relevant improvements in CCQ total scores were observed in both studies (mean change from baseline of 1.36 in DINO and 0.91 in DACOTA at Month 6 [all P<0.001]). Changes in CAT total score from baseline to Month 6 indicated that the average clinical impact of COPD was reduced from a severe (score: 21–30) to a moderate (score: 11–20) impairment. In DACOTA, mean change in post-bronchodilator FEV1 was 202 mL (P<0.001). Diarrhea, nausea, and weight decrease were the most frequently reported adverse drug reactions.
Conclusion: In real-life clinical practice, roflumilast treatment as an add-on therapy is associated with clinically relevant improvements in health status and quality of life.
Introduction: DACCORD is an observational, non-interventional study being conducted in German primary and secondary care centres. The study aims to describe the impact of disease (including exacerbations) and treatments over 2 years on ‘real-life’ patients with chronic obstructive pulmonary disease (COPD).
Materials and methods: Patients had a clinical and spirometry diagnosis of COPD, were aged ≥40 years and, on recruitment, were initiating or changing COPD maintenance medication. The only exclusion criteria were asthma and randomised clinical trial participation. Exacerbations data were collected every 3 months. COPD medication, COPD Assessment Test (CAT) and forced expiratory volume in 1 s (FEV1) were recorded at baseline and after 1 and 2 years.
Results: A total of 6122 patients were recruited, 3137 (51.2%) of whom completed the 2-year visit. The mean age of these patients was 65.6 years, 59% were male, 69% had mild or moderate airflow limitation, and their mean COPD Assessment Test (CAT) total score was 20.3. Overall, there was a trend towards decreasing COPD exacerbation rates over the 2-year follow-up period, with rates of 0.390 during Year 1 and 0.347 during Year 2. Rates were lower in patients with no exacerbation during the 6 months prior to entry (0.263 and 0.251 during Years 1 and 2, respectively), with 51.6% of patients having no exacerbation during the 6 months prior to entry and over the 2-year follow-up. Approximately 50% of the overall population experienced a clinically relevant improvement from baseline in CAT total score at Year 1 and 2. When assessed by treatment class (or classes), persistence to medication was high (77.8% in Year 1 and 71.4% in Year 2).
Conclusions: Overall, the 2-year follow-up data from DACCORD suggest that for most patients with COPD exacerbations are a rare event. For the majority of patients, the focus should be on managing symptoms, and the impact that these symptoms have on their daily lives. Even for those patients who do exacerbate, although prevention of exacerbations is an important factor, management of symptoms should be a key consideration. DACCORD also suggests that COPD disease progression is not inevitable – providing patients are receiving pharmacological treatment.
This paper aims at reconstructing the development and role of German neurology between 1840 and 1940. Therefore a couple of original sources as well as selected material form the scattered secondary literature were assessed and reviewed. Since the middle of the nineteenth century, an intricate process of separation from internal medicine and psychiatry gradually led to forming a self-conscious community of German neurologists. While Moritz Heinrich Romberg had constructed a cognitive basis for neurology, scientific founders such as Wilhelm Erb, Carl Wernicke, Alois Alzheimer, Hermann Oppenheim, Max Nonne, and many others established the new discipline within modern medicine. In 1891, the first generation of “pure” neurologists succeeded in founding the German Journal for Neurology (Deutsche Zeitschrift für Nervenheilkunde) followed by an autonomous professional organisation, the Society of German Neurologists (Gesellschaft Deutscher Nervenärzte) in 1907. A variety of external factors, however, hampered the institutional evolution and thus the implementation of chairs and departments remained quite modest. In 1935, only 2 years after the National Socialists had seized power, the regulatory merger with the psychiatristsʼ society caused the cautious attempts of German neurologists for autonomy to end in complete failure. The imprisonment, murder and expulsion of neuroscientists declared as Jewish or non-Aryan caused profound changes in neurology, medicine, academic life, and health care in general. Further historical research is needed to reconstruct in detail the involvement of German neurologists in racial-hygienic and eugenic research as well as the institutional and scientific development of German neurology after World War II.
Simple Summary: Cancer immunotherapy mainly targets immune system components, such as immune-suppressive networks generated by cancer cells in the tumor microenvironment (TME). Programmed cell death ligand 1, which is a secretory immune-suppressive factor, is released by tumor-associated macrophages (TAMs). The TME also disrupts production of tumor-specific T cells and generates immunosuppressive leukocytes, regulatory T cells, and myeloid-derived suppressor cells. Immune checkpoint inhibitors are effective in various cancers but only in a subset of patients. Non-coding RNAs, such as microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), are dysregulated in cancer through transcriptional, post-transcriptional, and epigenetic changes and have significant roles in cancer initiation and progression, which depends on deregulation of lncRNA expression. TAM function can be influenced by lncRNAs in various ways. However, our understanding of lncRNA dysregulation and function in cancer remains in the early stage.
Abstract: Ever since RNA sequencing of whole genomes and transcriptomes became available, numerous RNA transcripts without having the classic function of encoding proteins have been discovered. Long non-coding RNAs (lncRNAs) with a length greater than 200 nucleotides were considered as “junk” in the beginning, but it has increasingly become clear that lncRNAs have crucial roles in regulating a variety of cellular mechanisms and are often deregulated in several diseases, such as cancer. Lung cancer is the leading cause of cancer-related deaths and has a survival rate of less than 10%. Immune cells infiltrating the tumor microenvironment (TME) have been shown to have a great effect on tumor development with macrophages being the major cell type within the TME. Macrophages can inherit an inflammatory M1 or an anti-inflammatory M2 phenotype. Tumor-associated macrophages, which are predominantly polarized to M2, favor tumor growth, angiogenesis, and metastasis. In this review, we aimed to describe the complex roles and functions of lncRNAs in macrophages and their influence on lung cancer development and progression through the TME.
Background Fermentation of lignocellulosic biomass is an attractive alternative for the production of bioethanol. Traditionally, the yeast Saccharomyces cerevisiae is used in industrial ethanol fermentations. However, S. cerevisiae is naturally not able to ferment the pentose sugars D-xylose and L-arabinose, which are present in high amounts in lignocellulosic raw materials. Results We describe the engineering of laboratory and industrial S. cerevisiae strains to co-ferment the pentose sugars D-xylose and L-arabinose. Introduction of a fungal xylose and a bacterial arabinose pathway resulted in strains able to grow on both pentose sugars. Introduction of a xylose pathway into an arabinose-fermenting laboratory strain resulted in nearly complete conversion of arabinose into arabitol due to the L-arabinose reductase activity of the xylose reductase. The industrial strain displayed lower arabitol yield and increased ethanol yield from xylose and arabinose. Conclusion Our work demonstrates simultaneous co-utilization of xylose and arabinose in recombinant strains of S. cerevisiae. In addition, the co-utilization of arabinose together with xylose significantly reduced formation of the by-product xylitol, which contributed to improved ethanol production.
Formation of pathological anti-FVIII antibodies, or “inhibitors,” is the most serious complication of therapeutic FVIII infusions, affecting up to 1/3 of severe Hemophilia A (HA) patients. Inhibitor formation is a classical T-cell dependent adaptive immune response. As such, it requires help from the innate immune system. However, the roles of innate immune cells and mechanisms of inhibitor development vs. immune tolerance, achieved with or without Immune Tolerance Induction (ITI) therapy, are not well-understood. To address these questions, temporal transcriptomics profiling of FVIII-stimulated peripheral blood mononuclear cells (PBMCs) was carried out for HA subjects with and without a current or historic inhibitor using RNA-Seq. PBMCs were isolated from 40 subjects in the following groups: HA with an inhibitor that resolved either following ITI or spontaneously; HA with a current inhibitor; HA with no inhibitor history and non-HA controls. PBMCs were stimulated with 5 nM FVIII and RNA was isolated 4, 16, 24, and 48 h following stimulation. Time-series differential expression analysis was performed and distinct transcriptional signatures were identified for each group, providing clues as to cellular mechanisms leading to or accompanying their disparate anti-FVIII antibody responses. Subjects with a current inhibitor showed differential expression of 56 genes and a clustering analysis identified three major temporal profiles. Interestingly, gene ontology enrichments featured innate immune modulators, including NLRP3, TLR8, IL32, CLEC10A, and COLEC12. NLRP3 and TLR8 are associated with enhanced secretion of the pro-inflammatory cytokines IL-1β and TNFα, while IL32, which has several isoforms, has been associated with both inflammatory and regulatory immune processes. RNA-Seq results were validated by RT-qPCR, ELISAs, multiplex cytokine analysis, and flow cytometry. The inflammatory status of HA patients suffering from an ongoing inhibitor includes up-regulated innate immune modulators, which may act as ongoing danger signals that influence the responses to, and eventual outcomes of, ITI therapy.
Obesity is associated with an increased risk of heart failure. Little is known about the impact of dietary changes on the cardiac sequelae in obese patients. Twenty-one obese subjects underwent a 12-week low calorie fasting phase of a formula diet. Transthoracic two-dimensional speckle-tracking echocardiography was performed to obtain systolic left ventricular strain before and after weight loss. Body mass index decreased significantly from 38.6 ± 6.2 to 31.5 ± 5.3 kg/m(2), and the total percentage fat loss was 19%. Weight reduction was associated with a reduction in blood pressure and heart rate. Left ventricular longitudinal global peak systolic strain was in the lower normal range (-18.7 ± 3.2%) before weight loss and was unchanged (-18.8 ± 2.4%) after 12 weeks on diet with substantial weight loss. Also, no significant change in global radial strain after weight loss was noted (41.1 ± 22.0 versus 43.9 ± 23.3, p = 0.09). Left atrial and ventricular dimensions were in normal range before fasting and remained unchanged after weight loss. In our study obesity was associated with normal systolic left ventricular function. A 12-week low calorie diet with successful weight loss can reduce blood pressure and heart rate. Systolic left ventricular function and morphology were not affected by rapid weight reduction.
Background/objectives: Obesity is independently associated with left ventricular (LV) diastolic dysfunction and altered cardiac morphology. Morbidity and mortality in patients with diastolic dysfunction are similar to values observed in patients with systolic heart failure. We hypothesized that dysfunctional cardiac responses in people with obesity are reversible after weight loss. Thus, we studied the effect of dietary weight reduction on LV diastolic function as well as on cardiac structure using transthoracic echocardiography and tissue Doppler imaging (TDI).
Subjects/methods: Thirty-two subjects with obesity underwent a 12-week low-calorie fasting phase of a formula diet. Echocardiographic tissue Doppler indices of diastolic function and measurements of cardiac size were obtained prior to and after the fasting phase.
Results: A 12-week diet significantly reduced body mass index from 40.3 ± 6.6 kg/m 2 to 33.2 ± 6.1 kg/m 2 ( p < 0.01). Weight loss was associated with a significant reduction in blood pressure and heart rate. Echocardiography revealed diastolic dysfunction in subjects with obesity, which was improved by dieting. After weight loss, trans-mitral Doppler echocardiography showed a significant reduction in A-wave velocity, from 65.8 ± 19.2 cm/s to 57.0 ± 16.8 cm/s, and an increase in E/A ratio from 1.2 ± 0.4 to 1.4 ± 0.5 ( p < 0.01). TDI displayed a significantly lower a'-wave velocity (10.3 ± 2.3 cm/s and 8.9 ± 1.7 cm/s; p < 0.01). Left atrial and LV dimensions were normal and remained unchanged after weight loss.
Conclusion: Obesity is associated with diastolic dysfunction. A 12-week low-calorie diet with successful weight loss can reduce blood pressure and heart rate and partially normalize diastolic dysfunction.
Site-specific recombinases (SSR) are utilized as important genome engineering tools to precisely modify the genome of mice and other model organisms. Reporter mice that mark cells that at any given time had expressed the enzyme are frequently used for lineage tracing and to characterize newly generated mice expressing a recombinase from a chosen promoter. With increasing sophistication of genome alteration strategies, the demand for novel SSR systems that efficiently and specifically recombine their targets is rising and several SSR-systems are now used in combination to address complex biological questions in vivo. Generation of reporter mice for each one of these recombinases is cumbersome and increases the number of mouse lines that need to be maintained in animal facilities. Here we present a multi-reporter mouse line for loci-of-recombination (X) (MuX) that streamlines the characterization of mice expressing prominent recombinases. MuX mice constitutively express nuclear green fluorescent protein after recombination by either Cre, Flp, Dre or Vika recombinase, rationalizing the number of animal lines that need to be maintained. We also pioneer the use of the Vika/vox system in mice, illustrating its high efficacy and specificity, thereby facilitating future designs of sophisticated recombinase-based in vivo genome engineering strategies.
Wickler der Sandtrockenrasen bei Halle (Saale)-Nietleben und ihre Bedeutung für den Naturschutz
(1993)
In den Jahren 1988 bis 1992 wurden die nordöstlich des Heidesees bei Halle (Saale)-Nietleben gelegenen Streuobstwiesen, die als geschützter Landschaftsbestandteil nach NatSchG LSA einstweilig gesichert sind, ziemlich eingehenden kleinschmetterlingskundlichen Erhebungen unterzogen. Die Untersuchungen erfolgten mit freundlicher Genehmigung der zuständigen Behörden. Der Schwerpunkt lag in der Ermittlung derjenigen Schmetterlingsarten, die als typisch für die die Streuobstwiesen kennzeichnenden Sandtrockenrasen anzusehen sind. Um eine leichtere Zuordnung der aufgefundenen Arten zu ermöglichen, wurden insbesondere Tagesexkursionen in das Gebiet durchgeführt. Von den beobachteten Arten wurden Belege eingesammelt bzw. die Spezies, die im Freiland sicher bestimmbar waren, an Ort und Stelle notiert. Die nachfolgende Auswertung berücksichtigt neben den Daten des Autors auch die Aufsammlungen von Herrn T. Süssmuth, Radeberg, aus dem gleichen Zeitraum.
Südlich von Wurzen verlässt die Vereinigte Mulde das Sächsische Hügelland und strömt in einer flachen, meist drei bis vier Kilometer breiten Talwanne nach Norden, oftmals eingerahmt von Talsandterrassen. Oberhalb von Dessau weitet sich das Muldetal in Richtung Osten und vereinigt sich mit der Elbeaue. Nördlich von Dessau mündet die Mulde in die Elbe. Für die zwischen den Deichen gelegenen Auenabschnitte an der Mulde war eine Wiesen- und Weidenutzung sehr charakteristisch. Überflutungen des Auengrünlandes zwischen den Deichen kommen regelmäßig vor, wobei erwartungsgemäß die grundwassernahen Flächen deutlich häufiger betroffen sind als die grundwasserfernen. Werden Letztere überstaut, so ist die gesamte Überflutungsaue wassergefüllt. Kleine, wenig bewegungsaktive Tierarten haben kaum Rückzugsmöglichkeiten und viele ertrinken im Wasser. Dies gilt z. B. für Schmetterlingsraupen und bei längerer Dauer der Überstauung auch für Eier, Puppen und Falter. Darum erschien es sehr interessant, die Folgen der ausgedehnten und hohen Überflutung der Muldeaue im August 2002 am Beispiel der Schmetterlingsfauna eines Sandtrockenrasens in der Aue östlich von Dessau zu studieren.
In der kurzen Abhandlung über geschützte und gefährdete Pflanzen, Tiere und Landschaften des Landes Sachsen-Anhalt wird auf Arten der Kalttrocken- sowie Magerrasen eingegangen. Beschrieben werden der weiße Dost- oder Schmuck-Kleinspanner (Scopula ornata) dessen Flügelspanne nur etwa zwei Zentimeter misst und der zu den Spannerfaltern (Geometridae) zählt, sowie der kastanienbraune Schmalflügelzünsler (Selagia spadicella), der innerhalb der Zünslerfalter (Pyralidae) zur Unterfamilie Phycitinae gehört. Als Pflanze des Magerrasens wird die Herbstwendelorchis (Spiranthes spiralis) als eine stark gefährdete Orchideenart aufgeführt.
Background: The Global Burden of Diseases Study 2017 predicted that chronic obstructive pulmonary disease (COPD) is the second leading cause of death, the fourth leading cause of premature death, and the third cause for DALYs lost in Nepal. However, data on the population-based prevalence of COPD in Nepal are very limited. This study aims to assess the prevalence of COPD and factors associated with the occurrence of COPD in Nepal.
Methods: From a nationally representative, population-based cross-sectional study on chronic non-communicable diseases, the prevalence of COPD and its associated factors was determined. Of 12,557 participants aged over 20 years, 8945 participants completed a questionnaire and spirometry. Eligible participants were also asked to answer a COPD diagnostic questionnaire for screening COPD cases, and if needed underwent pre-bronchodilator and post-bronchodilator spirometry. COPD was defined as a post-bronchodilator FEV1/FVC (forced expiratory volume in 1 s/forced vital capacity) ratio of < 0.70. Multivariate logistic regression was performed to identify factors associated with COPD. Sampling weights were used for all data analyses.
Results: The prevalence of COPD in Nepal was 11.7% (95% CI: 10.5% to 12.9 %), which increased with age, and higher in those with a low educational level, those who had smoked ≥ 50 pack-years, persons having a low body mass index (BMI), and residents of Karnali province. Multivariate analysis revealed that being aged 60 years and above, having a low BMI, low educational status, having smoked more than 50 pack-years, provincial distribution, and ethnicity were independent predictors of COPD.
Conclusion: COPD is a growing and serious public health issue in Nepal. Factor such as old age, cigarette smoking, low educational attainment, low BMI, ethnicity, and locality of residence (province-level variation) plays a vital role in the occurrence of COPD. Strategies aimed at targeting these risk factors through health promotion and education interventions are needed to decrease the burden of COPD.
Prähistorische Eierschalenfragmente der Fundstelle Sulze bei Erfurt in Thüringen werden beschrieben und diskutiert. Die folgenden Arten werden nachgewiesen: Cygnus olor, Anser anser, Anas platyrhynchos und Gallus gallus forma domestica. Auf der Grundlage von Knochenresten gelten folgende Nachweise: Columba livia forma domestica, Tyto alba, Anser anser forma domestica, Anas platyrhynchos forma domestica, Gallus gallus forma domestica, Corvus corax, Coloelus monedula, Galerida cristata, Passer domesticus und Coccothraustes coccothraustes. Besonderes Gewicht wird auf die Bestimmungsmethoden an prähistorischen Eierschalen gelegt.
Meeting Abstract : Deutsche Gesellschaft für Chirurgie. 125. Kongress der Deutschen Gesellschaft für Chirurgie. Berlin, 22.-25.04.2008 Einleitung: Über 4 Millionen Menschen leben in Deutschland schätzungsweise mit chronischen Wunden. Aufgrund der demographischen Entwicklung unserer Gesellschaft ist mit einem weiteren Anstieg der zu nicht, oder nur zögerlich heilenden Wunden führenden Erkrankungen diabetisches Fußsyndrom, chronisch venöse Insuffizienz und pAVK auszugehen. Dennoch ist die moderne hydroaktive Wundbehandlung in Deutschland nicht flächendeckend etabliert. Gründe hierfür liegen unter anderem in dem unüberschaubaren Produktsortiment, der unzureichenden Vergütung vor allem im ambulanten Versorgungssektor und in der mangelhaften ärztlichen Ausbildung in Bezug auf Wundtherapie. Ein standardisiertes Wundbehandlungsschema erleichtert die stadiengerechte Anwendung moderner Wundauflagen und dient als nachvollziehbare Entscheidungsgrundlage in der Auswahl der erforderlichen Wundprodukte. Material und Methoden: Anhand eines Bogens werden vier Kriterien (Wundstadium, Wundexsudation, Wundtiefe und Wundinfektion) zur Beurteilung einer Wunde erfasst. Die fotographische Abbildung der verschiedenen Wundstadien erlaubt eine sichere visuelle Zuordnung durch den Therapeuten. Nach Analyse dieser S.E.T.I. Kriterien ergibt sich eine eindeutige stadiengerechte Produktzuordnung, die auch dem weniger geübten eine sichere Anwendung der verschiedenen Produktgruppen ermöglicht. Ergebnisse: Dieser Behandlungsstandard wurde zwischenzeitlich an 3 Kliniken der Maximalversorgung und in einem integrierten Versorgungsmodell zum diabetischen Fußsyndrom etabliert und stellt einen Bestandteil für ein weiteres IV Modell zur pAVK dar. Neben ökonomischen Vorteilen (reduzierte Lagerhaltungskosten, Straffung des Produktsortiments, günstigere Bezugskonditionen) lässt sich eine Verbesserung in der Behandlungsqualität, eine verkürzte stationäre Behandlungsdauer sowie eine vereinfachte Umsetzung einer sektorenübergreifenden Wundversorgung erzielen. Schlussfolgerung: Die Anwendung eines Therapiestandards für die stadiengerechte Behandlung chronischer Wunden ermöglicht eine Anwenderunabhängige gleich bleibend hohe Qualität sowie eine wesentlich vereinfachte Orientierung in dem Produktsortiment. Hierdurch wird weiterhin ein Beitrag zur Schnittstellenoptimierung zwischen dem stationären und ambulanten Versorgungssektor bei chronischen Wunden geleistet. Ein verbindlicher interdisziplinärer und interprofessioneller Wundbehandlungsstandard stellt eine unverzichtbare Qualitätssicherungsmaßnahme in der Wundbehandlung dar.
Rad se bavi analizom svojstava, funkcija i markera konverzacijkih implikatura u SMS diskursu. U prvome dijelu članka utvrđuju se temeljni mehanizmi prijenosa implicitnih intencionalno enodiranih sadržaja u diskurs te se određuju obilježja jezične strukture i govorne produkcije tipična za dopisivanje putem SMS poruka. Diskurs SMS dopisivanja smatra se plodnim područjem za proučavanje implikatura zbog bogatstva implicitnim sadržajima (uvjetovanoga sažetošću SMS forme); posrednosti komunikacije koja iziskuje jezično ili znakovno markiranje implikatura te specifičnih načina prijenosa i signaliziranja implicitnih sadržaja. U drugome dijelu rada predstavljaju se paralingvistički i jezični markeri konverzacijskih implikatura koji su se temeljem analize korpusa SMS dopisivanja pokazali najzastupljenijima u upotrebi. Cilj je rada ukazati na specifičnosti SMS diskursa kada su u pitanju sredstva i mehanizmi enkodiranja, signaliziranja te uspješnoga dekodiranja implicitnih sadržaja.
Surviving death: emerging concepts of RIPK3 and MLKL ubiquitination in the regulation of necroptosis
(2021)
Lytic forms of programmed cell death, like necroptosis, are characterised by cell rupture and the release of cellular contents, often provoking inflammatory responses. In the recent years, necroptosis has been shown to play important roles in human diseases like cancer, infections and ischaemia/reperfusion injury. Coordinated interactions between RIPK1, RIPK3 and MLKL lead to the formation of a dedicated death complex called the necrosome that triggers MLKL-mediated membrane rupture and necroptotic cell death. Necroptotic cell death is tightly controlled by post-translational modifications, among which especially phosphorylation has been characterised in great detail. Although selective ubiquitination is relatively well-explored in the early initiation stages of necroptosis, the mechanisms and functional consequences of RIPK3 and MLKL ubiquitination for necrosome function and necroptosis are only starting to emerge. This review provides an overview on how site-specific ubiquitination of RIPK3 and MLKL regulates, fine-tunes and reverses the execution of necroptotic cell death.
Unmotivated and unprepared, an Austrian young man leaves his home town Vienna, only to dive into the unknown Romania. He already has images of this country in his mind. He is on his way towards the magical, dark, sparkling Transdanubien, about which he only knows clichés: that Romanians barely have anything to eat, that it is a country of gypsies, that the official language is Russian, that it is an anachronistic country par excellence. With this perspective, his relationship with local Ilina can only fail. This article follows along the lines of a complicated inter-cultural communication.
Looking back, my memories seem like distant, made-up stories. These words of the main character are to be found all over Jan Koneffkes novel. A foreigner on the run, Felix Kannmacher is forced to tell stories in order to survive. He is at the mercy of a teenager who is avid for constantly new and different bedtime stories. Felix gives in, as he has no other choice but to be a slaveto this child. The following article analyses the fine line between the stories Felix invents for Virginia and two narratological aspects: the actual plot of the novel on the one hand, and the actual course of history, on the other. The entire novel is built on stories-within-stories that twist and turn the course of Story and History alike. Because each one of us writes their own (hi)story.
For intercultural language teaching, coaching students on how to perceive the cultural “other” is of crucial importance in order to avoid culturally based misunderstandings. This paper explores how perceiving the other can offer conclusions for perceiving and becoming aware of the self. Through that, a process of giving and taking ensues in which perceptions of the self and of the other are constantly fluctuating depending on the context in which the communication is taking place. At the crossroads between members of two different cultures, a dialogue emerges in which the points of view of both parties are changed. The paper outlines how perception is a construct in which one’s own origin, education, and emotions are blended in. Intercultural learning is the way to deal with this constructs in a flexible manner so as to create new interpretation patterns. It teaches how to sympathize with the other and how to better understand oneself.
Film is a wonderful means of reflecting upon the identity of the self and the other. A movie like Didi Danquart’s Offset (2006), which deals with intercultural conflicts, even more so. The clash of the Romanian and German cultures depicted in this movie illustrates how the construction of identity – of the self and the other – works.
Using literature in culture and civilization classes enables the contact to foreign culture. Literature does not merely copy reality, but has its own rules of story telling, its own way of changing the perspective on reality, of correcting cliches, in omitting something, so as for the reader to become curious and fill in these „gaps”. In this paper, a fragment from a novel shows how a german businessman arriving in interbellic Romania finds that time is measured differently in those two countries.
Prämissen für die Vermittlung interkultureller Kompetenzen im studienbegleitenden DaF-Unterricht
(2014)
Language teaching alone is not sufficient in order to communicate successfully in the foreign language. Even with the acquisition of one’s native language, one does not learn just vocabulary, grammar, reading, writing, speaking and listening. Apart from all that one learns how to identify and to practice cultural patterns. Here, the learning and teaching process is accompanied by another component: intercultural communication and the acquisition of intercultural competences. These teach the lerner to understand first and foremost their own cultural background in order for them to be able to change perspective and look at and understand the cultural background of the target language. Teaching must be centered on the learner, and the foreign language is not taught „in general“, but with regard to the learners’ culture of origin.
Language teaching through the medium of film may prove very rewarding in that it moves the focus away from language and its general markers (grammar, vocabulary) alone and casts it onto culture, cultural boundaries and rules. Among them, space plays a very important role. It defines who we are, where we come from. Especially the fine line between what is considered public or private space is worth being analyzed. With examples from two movies, students of German as a Foreign Language are meant to discover this fine line, look beyond it and restore an equilibrium between the public and the private in order to be prepared for intercultural experiences.
Cosmin, a twelve-year-old Roma boy from Transylvania, only goes to school for a short while. For his mother, it is more important, that he, the only male of a household with many mouths to feed, help her with work. But Cosmin’s teacher does not give up and proposes a bargain: If Cosmin’s mother lets her children go to school, she will get electricity from the school to be able to watch TV. Due to this arrangement, Cosmin returns to school for a few days, becomes a little thief and embarks on a journey that can become an opportunity for him. A kind of a bildungsroman, a coming of age novel focused on the ups and downs between two worlds on Romanian soil, that could not be more different from one another: the Romanian majority and the Roma minority. This article sets out to document life at the brink of society, with all of its facets.
Background: Current prognostic gene signatures for breast cancer mainly reflect proliferation status and have limited value in triple-negative (TNBC) cancers. The identification of prognostic signatures from TNBC cohorts was limited in the past due to small sample sizes.
Methodology/Principal Findings: We assembled all currently publically available TNBC gene expression datasets generated on Affymetrix gene chips. Inter-laboratory variation was minimized by filtering methods for both samples and genes. Supervised analysis was performed to identify prognostic signatures from 394 cases which were subsequently tested on an independent validation cohort (n = 261 cases).
Conclusions/Significance: Using two distinct false discovery rate thresholds, 25% and <3.5%, a larger (n = 264 probesets) and a smaller (n = 26 probesets) prognostic gene sets were identified and used as prognostic predictors. Most of these genes were positively associated with poor prognosis and correlated to metagenes for inflammation and angiogenesis. No correlation to other previously published prognostic signatures (recurrence score, genomic grade index, 70-gene signature, wound response signature, 7-gene immune response module, stroma derived prognostic predictor, and a medullary like signature) was observed. In multivariate analyses in the validation cohort the two signatures showed hazard ratios of 4.03 (95% confidence interval [CI] 1.71–9.48; P = 0.001) and 4.08 (95% CI 1.79–9.28; P = 0.001), respectively. The 10-year event-free survival was 70% for the good risk and 20% for the high risk group. The 26-gene signatures had modest predictive value (AUC = 0.588) to predict response to neoadjuvant chemotherapy, however, the combination of a B-cell metagene with the prognostic signatures increased its response predictive value. We identified a 264-gene prognostic signature for TNBC which is unrelated to previously known prognostic signatures.
Heterogenous subtypes of breast cancer need to be analyzed separately. Pooling of datasets can provide reasonable sample sizes but dataset bias is an important concern. We assembled a combined dataset of 579 Affymetrix microarrays from triple negative breast cancer (TNBC) in Gene Expression Omnibus (GEO) series GSE31519. We developed a method for selecting comparable datasets and to control for the amount of dataset bias of individual probesets.
Brustkrebs ist die häufigste Krebserkrankung und Todesursache bei Frauen. Die Forschung der letzten Jahrzehnte hat gezeigt, dass es sich dabei nicht um eine einzelne, immer gleich verlaufende Erkrankung handelt. Vielmehr geht man heute davon aus, dass Brustkrebs eine heterogene Erkrankung mit verschiedenen Subtypen darstellt. Sie lassen sich klinisch und molekular deutlich von einander unterscheiden. Wichtiges Ziel der modernen Forschung und ihrer Methoden ist daher die Entwicklung einer individuellen Therapie für jede einzelne Patientin.
Mit Dollys Geburt am 27. Februar 1997 gelingt es Forschern erstmals, die ausdifferenzierte Körperzelle eines erwachsenen Schafes so zurückzuprogrammieren, dass aus ihr ein neuer Embryo und damit ein (fast) identischer Klon des Muttertieres entsteht. Das Ergebnis ist ein kleines Schäfchen und ein Sturm an moralischer Entrüstung. Menschen zu klonen, über lange Zeit als unmöglich postuliert, ist plötzlich in den Bereich des Machbaren gerückt. Auch Habermas lässt sich von diesen Neuigkeiten beunruhigen. In einem kurzen Artikel in der »Süddeutschen Zeitung« vom 17. / 18. Januar 1998 beschreibt er das Klonen von Menschen als eine neue Form der Sklaverei. Der Klon könnte der Möglichkeit beraubt werden, sich als freies und gleiches Mitglied der moralischen Gemeinschaft zu verstehen. »Für den Klon verstetigt sich nämlich in der Definition eines unwiderruflichen Kodes ein Urteil, das eine andere Person vor seiner Geburt über ihn verhängt hat.« (Habermas 1998, 245) Anders als bei der Erziehung könne der Klon, der um seine Herkunft weiß und mit dieser hadert, sich nicht von seiner genetischen Festlegung durch eine andere Person lösen. Vielleicht bliebe es ihm daher für immer versagt, sich als alleiniger Autor seiner Lebensgeschichte zu verstehen und für diese die volle Verantwortung zu übernehmen. Auch die Gleichheit von Klon und demjenigen, der eingreift, sei gefährdet: Anders als in traditionellen Eltern-Kind-Beziehungen lassen sich die sozialen Rollen von Kloner und Geklontem niemals vertauschen. (Habermas 2002, 112)
t is becoming less and less controversial that we ought to aggressively combat climate change. One main reason for doing so is concern for future generations, as it is they who will be the most seriously affected by it. Surprisingly, none of the more prominent deontological theories of intergenerational justice can explain why it is wrong for the present generation to do very little to stop worsening the problem. This paper discusses three such theories, namely indirect reciprocity, common ownership of the earth and human rights. It shows that while indirect reciprocity and common ownership are both too undemanding, the human rights approach misunderstands the nature of our intergenerational relationships, thereby capturing either too much or too little about what is problematic about climate change. The paper finally proposes a way to think about intergenerational justice that avoids the pitfalls of the traditional theories and can explain what is wrong with perpetuating climate change.
Two new species of Psammoecus Latreille, 1829 from Australia are described: Psammoecus australis sp. nov. and P. venustus sp. nov. A taxonomic revision and diagnoses for other Australian species are provided. Psammoecus obesus Grouvelle, 1919 is recorded from Australia for the first time. Two new synonyms are discovered: Psammoecus t-notatus Blackburn, 1908 = P. amoenus Grouvelle, 1912 syn. nov.; Psammoecus vittifer Blackburn, 1903 = P. concolor Grouvelle, 1919 syn. nov. A lectotype is designated for Psammoecus concolor Grouvelle, 1919.
New state records for 33 species of Leiodidae (Coleoptera) are reported from Ohio, with the majority of records from one locality in the southeastern portion of the state. This doubles the known members of
the family in Ohio to 66 species in 20 genera.
ZooBank registration. urn:lsid:zoobank.org:pub:DF3542D6-680B-4F0F-9D93-A30529720879
Naturschutz bedeutet nicht nur Erhaltung und Bewahrung gefährdeter Tiere, Pflanzen und ihrer Lebensräume, Naturschutz bedeutet auch Erhaltung der Vielfalt, Eigenarten und Besonderheiten der unbelebten Natur auf der Erde, besonders der Zeugnisse zur Geschichte der Erde, ihrer Dynamik, ihrer Stoffkreisläufe und zur Evolution.
We present a calculation of the global polarization of Λ hyperons in relativistic Au–Au collisions at RHIC Beam Energy Scan range sNN−−−√=7.7−200 GeV with a 3+1-dimensional cascade+viscous hydro model, UrQMD+vHLLE. Within this model, the mean polarization of Λ in the out-of-plane direction is predicted to decrease rapidly with collision energy from a top value of about 2% at the lowest energy examined. We explore the connection between the polarization signal and thermal vorticity and estimate the feed-down contribution to Λ polarization due to the decay of higher mass hyperons.
Wenn Yvan Goll 1920 programmatisch feststellen konnte, die Basis für alle neue kommende Kunst sei das Kino, um einen ästhetischen Avantgardismus in der Annäherung von Künsten und Film zu begründen, dann beginnt Deleuze mit der Frage: "Was offenbart der Film, was die anderen Künste uns nicht offenbaren?" Anstatt Resonanzen oder Affinitäten im ästhetischen Feld herauszustellen, müssen die "Begriffe, die von der Philosophie für den Film vorgeschlagen werden,[…] spezifisch, das heißt nur dem Film angemessen sein." Der Film als Gegenstand der Untersuchung ist eine Singularität, und dementsprechend haben auch seine Begriffe den Charakter von Singularitäten, die von keinen Universalien, Transzendentalien oder Allgemeinheiten eingeholt werden können. Begriffe, zum Beispiel aus der Psychoanalyse, von außen an den Film heranzutragen, würde die Singularität des Films verfehlen, weil sie nicht mehr vom Film sprechen, sondern etwa vom Imaginären, von Kastrationsangst oder Partialobjekten. Übertragungen dieser Art würden die Bewegung des Denkens auf der Ebene der Immanenz, um die es Deleuze zu tun ist, außer Kraft setzen.
Deleuzes Philosophie des Kinos versteht man besser, wenn man den Abstand sieht, den er von den Filmtheorien der klassischen Moderne nimmt, die für lange Zeit die Diskussionen und Untersuchungen in der Kulturwissenschaft der Medien orientiert haben: Walter Benjamin und Siegfried Kracauer. Beide haben sich durchaus auch auf die Besonderheit des Mediums Film konzentriert, aber sie bewegen sich - wie sich zeigen wird - allein im Horizont des Denkens der Moderne, den Deleuze überschreitet.
Die Neuen Kriege seit dem Epochenbruch von 1989 sind Thema der Gegenwartsliteratur geworden, und sie sucht im Raum der Fiktion eine eigene Anschaulichkeit und spezifische Vorstellungen vom Charakter dieser neuen Konflikte zu erzeugen. Zugleich sind diese Neuen Kriege ein Gegenstand der disziplinär erfaßten Diskurse der Wssenschaften, die nach den kurzen Friedenserwartungen im Anschluß an 1989/90 eine Theorie der Kriege im Zeichen einer neuen Globalisierung verstärkt diskutieren. Wenn das gegenwärtige Denken des Krieges literarisch und außerliterarisch seine Kontur gewinnt, erscheint die Relationierung beider Felder geboten, wie in einem neueren literaturwissenschaftlichen Forschungszweig nach dem Verhältnis von Literatur und Wissen bzw. von literarischen Texten und wissensehaftlichen Diskursen gefragt wird. Das Thema Neue Kriege läßt sich jedoch hier aus zwei Gründen nicht umstandslos einreihen. Der eine Grund ist theoretisch-methodischer Art. Nur die Dualität von disziplinär verfaßten historisch-politischen Diskursen und literarischem Text in den Blick zu nehmen ist zu wenig differenziert. Es ist nötig, sie um eine dritte Dimension zu erweitern: den Komplex der Medien, die als Wissensgeber vom Krieg, als eigene Kriegsmittel und als Gegenspieler der Literatur fungieren.
We found that a true ternary fission with formation of a heavy third fragment (a new kind of radioactivity) is quite possible for superheavy nuclei due to the strong shell effects leading to a three-body clusterization with the two doubly magic tin-like cores. The three-body quasifission process could be even more pronounced for giant nuclear systems formed in collisions of heavy actinide nuclei. In this case a three-body clusterization might be proved experimentally by detection of two coincident lead-like fragments in low-energy U+U collisions.
Background: Certain disadvantages of the standard hematopoietic stem and progenitor cell (HSPC) mobilizing agent G-CSF fuel the quest for alternatives. We herein report results of a Phase I dose escalation trial comparing mobilization with a peptidic CXCR4 antagonist POL6326 (balixafortide) vs. G-CSF.
Methods: Healthy male volunteer donors with a documented average mobilization response to G-CSF received, following ≥6 weeks wash-out, a 1–2 h infusion of 500–2500 µg/kg of balixafortide. Safety, tolerability, pharmacokinetics and pharmacodynamics were assessed.
Results: Balixafortide was well tolerated and rated favorably over G-CSF by subjects. At all doses tested balixafortide mobilized HSPC. In the dose range between 1500 and 2500 µg/kg mobilization was similar, reaching 38.2 ± 2.8 CD34 + cells/µL (mean ± SEM). Balixafortide caused mixed leukocytosis in the mid-20 K/µL range. B-lymphocytosis was more pronounced, whereas neutrophilia and monocytosis were markedly less accentuated with balixafortide compared to G-CSF. At the 24 h time point, leukocytes had largely normalized.
Conclusions: Balixafortide is safe, well tolerated, and induces efficient mobilization of HSPCs in healthy male volunteers. Based on experience with current apheresis technology, the observed mobilization at doses ≥1500 µg/kg of balixafortide is predicted to yield in a single apheresis a standard dose of 4× 10E6 CD34+ cells/kg from most individuals donating for an approximately weight-matched recipient. Exploration of alternative dosing regimens may provide even higher mobilization responses.
Trial Registration European Medicines Agency (EudraCT-Nr. 2011-003316-23) and clinicaltrials.gov (NCT01841476)
Mobilized blood has supplanted bone marrow (BM) as the primary source of hematopoietic stem cells for autologous and allogeneic stem cell transplantation. Pharmacologically enforced egress of hematopoietic stem cells from BM, or mobilization, has been achieved by directly or indirectly targeting the CXCL12/CXCR4 axis. Shortcomings of the standard mobilizing agent, granulocyte colony-stimulating factor (G-CSF), administered alone or in combination with the only approved CXCR4 antagonist, Plerixafor, continue to fuel the quest for new mobilizing agents. Using Protein Epitope Mimetics technology, a novel peptidic CXCR4 antagonist, POL5551, was developed. In vitro data presented herein indicate high affinity to and specificity for CXCR4. POL5551 exhibited rapid mobilization kinetics and unprecedented efficiency in C57BL/6 mice, exceeding that of Plerixafor and at higher doses also of G-CSF. POL5551-mobilized stem cells demonstrated adequate transplantation properties. In contrast to G-CSF, POL5551 did not induce major morphological changes in the BM of mice. Moreover, we provide evidence of direct POL5551 binding to hematopoietic stem and progenitor cells (HSPCs) in vivo, strengthening the hypothesis that CXCR4 antagonists mediate mobilization by direct targeting of HSPCs. In summary, POL5551 is a potent mobilizing agent for HSPCs in mice with promising therapeutic potential if these data can be orroborated in humans.
Wegepläne sind ein wichtiges Instrument der Nationalparkleitung zur Koordinierung vorhandener Nutzungsanforderungen mit den Schutzzielen des Nationalparks. Fast jede Nutzung im Nationalpark geht von Wegen aus. Die Wegedichte und der Ausbaugrad der Wege bestimmen die Intensität der Zerschneidung des Nationalparkgebietes und damit in erheblichem Maße die Möglichkeiten zur Erfüllung seiner Aufgaben als Schutzgebiet und für den ungestörten Ablauf dynamischer ökosystemarer Prozesse in der Natur. Andererseits sind Nationalparke aufgerufen, Ihr Gebiet erlebbar zu machen und geeignete Möglichkeiten für die Erholung und Bildung anzubieten.
Es wird die Entwicklung der Brockenvegetation von 1993 bis 2013 aufgezeigt. Von besonderem Interesse ist dabei die Vegetationsentwicklung auf ehemals versiegelten und später renaturierten Flächen. Aber auch den acidiphilen Zwergstrauchheiden galt ein besonderes Augenmerk, da diese bevorzugte Standorte für die Brockenanemone (Pulsatilla alpina ssp. alba) sind.
Der Brockengarten
(1994)
Die Idee. auf dem höchsten Harzgipfel einen "Alpengarien" einzurichten, hatte Ende des vergangenen Jahrhunderts Prof, Dr. Albert Peter, seinerzeit Direktor des Botanischen Gartens der Universität Göttingen. Sein Ziel war es, der einzigartigen. aber bereits damals gefährdeten Brockenflora eine Überlebenschance zu geben und experimentell nachzuweisen, dass die Brockenkuppe von Natur aus baumfrei ist. Zum anderen wollte er den Brockenbesuchern die Möglichkeit bieten, einen Eindruck von der Formenvielfalt der Hochgebirgsflora zu erhalten. Gleichzeitig sollte u.a. das Wuchsverhalten der "Importpflanzen" aus den Hochgebirgen der Welt unter den ökologischen und klimatischen Bedingungen des Brockens wissenschaftlich begleitet werden.
Die Ausweisung von Nationalparken innerhalb der mitteleuropäischen Kulturlandschaft bietet die einmalige Chance, Strukturveränderungen in anthropogen überprägten aber auch in den Resten naturnaher Lebensräume zu erfassen. Vor allem Pflanzengesellschaften als wichtige Strukturkomponenten der Ökosysteme geben wichtige Hinweise zum Zustand der verschiedenen Lebensraumtypen (ELLENBERG 1996). Regelmäßige pflanzensoziologische Untersuchungen können somit quantitative wie qualitative Veränderungen in den Lebensräumen aufzeigen. Dazu wurden zunächst die Farn- und Blütenpflanzen des Nationalparks Hochharz erfasst (KISON & WERNECKE 2004) und darüber hinaus flächendeckend die Pflanzengesellschaften.
In diesem Beitrag werden an einigen Beispielen die Auswertungsmöglichkeiten aufgezeigt, die die digital vorliegende Vegetationskarte des Nationalparks Harz bietet. Es wird deutlich, dass beim Vergleich der vorliegenden Daten mit Wiederholungsaufnahmen Aussagen zu den ökologischen Veränderungen im Nationalpark Harz gemacht werden können, die das Ergebnis der natürlichen Sukzession bzw. das Ergebnis forstlicher Initialmaßnahmen sind. Die Arbeit zeigt, dass neben den Flächenanteilen der erfassten Pflanzengesellschaften die vorkommenden Arten und ihre Deckungsanteile in der jeweiligen Gesellschaft berechnet werden können. Damit ist es z. B. perspektivisch möglich, flächendeckende Aussagen zu den Ausbreitungstendenzen der Arten z. B. in den Pflanzengesellschaften und in den unterschiedlichen Höhenstufen des Nationalparks Harz zu machen. So zeigt die aktuelle Verbreitung von Picea abies im Nationalpark Harz, dass die Verteilung der Baumart nicht annähernd deckungsgleich mit der Verteilung ihrer natürlichen bzw. naturnahen Waldgesellschaften ist. Diese Diskrepanz tritt bei Fagus sylvatica nicht ganz so extrem auf. Am größten ist die Differenz in Höhenbereichen, in denen Fagus sylvatica ihr natürliches Verbreitungsgebiet hat, aber auch in der Vergangenheit am stärksten zurückgedrängt wurde. Das sind genau die Gebiete, in denen die Rotbuche im Rahmen der forstlichen Initialmaßnahmen des Nationalparks verstärkt eingebracht wurde. Ob Fagus sylvatica dort, wo sie gepflanzt wurde und in höheren Deckungsgraden auftritt, in der Lage ist, das Potenzial für natürliche Buchenwaldgesellschaften zu bilden, wird mit Hilfe der hier dargestellten Erfassungsmethode perspektivisch nachweisbar sein. Dass es sinnvoll ist, zu dem jetzigen Zeitpunkt zwischen naturnahen Waldgesellschaften und Fichtenforsten zu unterscheiden, wird anhand des Vergleichs ausgewählter Parameter aufgezeigt.
Karsten fügt der umfangreichen Lampedusa-Forschung einen wichtigen Aspekt hinzu, indem er die bislang weitgehend unbeachtete geschichtsphilosophische Dimension des Romans beleuchtet. Er zeigt, dass und wie sich Lampedusa der Zeit um 1860/61 sowohl zu erzählerischen Zwecken, zur Handlungsmotivation, Figurengestaltung und -kontextualisierung, bedient als auch dazu, geschichtliche Ereignisse dieser Zeit zu kommentieren und einzuordnen.
Hymenomycetes Fennici
(1881)
Mit dem fast 500 Seiten starken Buch legt der Arbeitskreis Heimische Orchideen Sachsen-Anhalt e. V. (AHO) ein im doppelten Wortsinne schwergewichtiges Werk vor, in dem die über Jahrzehnte gesammelten Kenntnisse des Arbeitskreises für die Öffentlichkeit aufbereitet wurden. Diese immense Arbeitsleistung, die sicher auch eine logistische Herausforderung darstellte, kann gar nicht hoch genug eingeschätzt werden. Das Werk gliedert sich in drei Teile: Orchideen in der Kulturlandschaft, die Orchideenarten Sachsen-Anhalts sowie Orchideen und Vegetation.
The article addresses the question of who reports the dialogue in fictional texts featuring an unreliable narrator. Since no human being can remember and reproduce lengthy conversations accurately, some narrative theorists attribute direct speech representation to the author instead of the character narrator. This means that the speech of other characters may be reported reliably even if the narrator is totally unreliable. The narrator’s version of the events may then be contradicted by others, which allows the reader to perceive his biases. However, Kazuo Ishiguro’s An Artist of the Floating World illustrates the fact that direct speech reports, too, can be distorted by the narrator’s subjectivity, especially his emotions. In Ishiguro’s novel, the narrator’s grief and depression lead him to misremember and invent past conversations. Following Meir Sternberg, the article argues that the reliability of speech reporting in unreliable narration must be determined on a case-by-case basis. The text must signal that the narrator’s speech reporting is unreliable. In the absence of a signal, the reader is supposed to disregard any deviations from verbatim reproduction and to accept the transgression of the limits of human memory.
Understanding the role of short-interfering RNA (siRNA) in diverse biological processes is of current interest and often approached through small RNA sequencing. However, analysis of these datasets is difficult due to the complexity of biological RNA processing pathways, which differ between species. Several properties like strand specificity, length distribution, and distribution of soft-clipped bases are few parameters known to guide researchers in understanding the role of siRNAs. We present RAPID, a generic eukaryotic siRNA analysis pipeline, which captures information inherent in the datasets and automatically produces numerous visualizations as user-friendly HTML reports, covering multiple categories required for siRNA analysis. RAPID also facilitates an automated comparison of multiple datasets, with one of the normalization techniques dedicated for siRNA knockdown analysis, and integrates differential expression analysis using DESeq2.
Hepatitis C virus (HCV) infection leads to the development of hepatic diseases, as well as extrahepatic disorders such as B-cell non-Hodgkin's lymphoma (B-NHL). To reveal the molecular signalling pathways responsible for HCV-associated B-NHL development, we utilised transgenic (Tg) mice that express the full-length HCV genome specifically in B cells and develop non-Hodgkin type B-cell lymphomas (BCLs). The gene expression profiles in B cells from BCL-developing HCV-Tg mice, from BCL-non-developing HCV-Tg mice, and from BCL-non-developing HCV-negative mice were analysed by genome-wide microarray. In BCLs from HCV-Tg mice, the expression of various genes was modified, and for some genes, expression was influenced by the gender of the animals. Markedly modified genes such as Fos, C3, LTβR, A20, NF-κB and miR-26b in BCLs were further characterised using specific assays. We propose that activation of both canonical and alternative NF-κB signalling pathways and down-regulation of miR-26b contribute to the development of HCV-associated B-NHL.
Dry calcareous grasslands in Europe are renowned for their high plant diversity. However, declining habitat areas and highly fragmented distribution threaten the long-term persistence of this valuable habitat type. In Estonia the decline of traditional grassland management and subsequent encroachment of shrubs has resulted in a substantial loss of alvar grasslands – a particularly rare and species-rich type of calcareous grassland. It is known that a shrub cover of more than 70% decreases the alvar grassland species richness. At the same time, a shrub cover of 30% is considered optimal for alvar grasslands and thus a target state for habitat restoration. However, very little is known about the effect of low shrub cover on environmental conditions and species composition of alvar grasslands. Our aim was to detect to what extent the small-scale plant diversity and species composition is influenced by low shrub cover (less than 30%). We hypothesized that even a low shrub cover can have an effect on the environmental conditions of alvar grasslands. We sampled small-scale plant species richness, shrub cover and abiotic environmental conditions such as light, soil moisture, soil pH and soil depth in 10 metre long transects (n = 33) subdivided into 10 cm × 10 cm plots in Estonian alvar grasslands. Structural equation modelling was used to quantify the direct and indirect effects of shrub cover on the richness of characteristic alvar species and on the richness of generalist species. We found that low shrub cover of up to 30% increased total and generalist species richness directly and indirectly by increasing the light heterogeneity. Alvar characteristic species richness was not relat-ed to low shrub cover values. This suggests that when estimating the effects of shrub cover on species richness and on conservation needs of grasslands, habitat specificity of species needs to be taken into account.
In diesem Artikel soll einer der strittigen Vertreter der deutschen Romantik auf zwei verschiedene Weisen analysiert werden, erstens durch Untersuchung des historischen Rahmens seiner antiken Tragödie "Penthesilea", und zweitens, durch den Vergleich des Werkes mit seiner persöhnlichen romantischen Veranlagung, um die traditionellen und historischen Grenzen des Begriffs "Romantik" zu erweitern.
Dieser Artikel behandelt zwei deutsche Schriftstellerinnen – Fanny Lewald und Franziska Gräfin zu Reventlow. Sie sind Repräsentantinnen verschiedener Epochen innerhalb der Deutschen Literatur. Beide hinterließen uns ihre Autobiografien, Anekdoten und wir können heute ihre Entwicklung nachvollziehen und ihr heftiges Ringen um Freiheit, Selbstbestimmung und Selbstverwirklichung gegen geschlechtsspezifische Rollenzuweisungen, Abstammung und sozialen Stand miteinander vergleichen.
Introduction: Acute kidney injury (AKI) can evolve quickly and clinical measures of function often fail to detect AKI at a time when interventions are likely to provide benefit. Identifying early markers of kidney damage has been difficult due to the complex nature of human AKI, in which multiple etiologies exist. The objective of this study was to identify and validate novel biomarkers of AKI.
Methods: We performed two multicenter observational studies in critically ill patients at risk for AKI - discovery and validation. The top two markers from discovery were validated in a second study (Sapphire) and compared to a number of previously described biomarkers. In the discovery phase, we enrolled 522 adults in three distinct cohorts including patients with sepsis, shock, major surgery, and trauma and examined over 300 markers. In the Sapphire validation study, we enrolled 744 adult subjects with critical illness and without evidence of AKI at enrollment; the final analysis cohort was a heterogeneous sample of 728 critically ill patients. The primary endpoint was moderate to severe AKI (KDIGO stage 2 to 3) within 12 hours of sample collection.
Results: Moderate to severe AKI occurred in 14% of Sapphire subjects. The two top biomarkers from discovery were validated. Urine insulin-like growth factor-binding protein 7 (IGFBP7) and tissue inhibitor of metalloproteinases-2 (TIMP-2), both inducers of G1 cell cycle arrest, a key mechanism implicated in AKI, together demonstrated an AUC of 0.80 (0.76 and 0.79 alone). Urine [TIMP-2].[IGFBP7] was significantly superior to all previously described markers of AKI (P <0.002), none of which achieved an AUC >0.72. Furthermore, [TIMP-2].[IGFBP7] significantly improved risk stratification when added to a nine-variable clinical model when analyzed using Cox proportional hazards model, generalized estimating equation, integrated discrimination improvement or net reclassification improvement. Finally, in sensitivity analyses [TIMP-2].[IGFBP7] remained significant and superior to all other markers regardless of changes in reference creatinine method.
Conclusions: Two novel markers for AKI have been identified and validated in independent multicenter cohorts. Both markers are superior to existing markers, provide additional information over clinical variables and add mechanistic insight into AKI. Trial registration: ClinicalTrials.gov number NCT01209169.
We have analyzed a series of eleven mutations in the 49-kDa protein of mitochondrial complex I (NADH:ubiquinone oxidoreductase) from Yarrowia lipolytica to identify functionally important domains in this central subunit. The mutations were selected based on sequence homology with the large subunit of [NiFe] hydrogenases. None of the mutations affected assembly of complex I, all decreased or abolished ubiquinone reductase activity. Several mutants exhibited decreased sensitivities toward ubiquinone-analogous inhibitors. Unexpectedly, seven mutations affected the properties of iron-sulfur cluster N2, a prosthetic group not located in the 49-kDa subunit. In three of these mutants cluster N2 was not detectable by electron-paramagnetic resonance spectroscopy. The fact that the small subunit of hydrogenase is homologous to the PSST subunit of complex I proposed to host cluster N2 offers a straightforward explanation for the observed, unforeseen effects on this iron-sulfur cluster. We propose that the fold around the hydrogen reactive site of [NiFe] hydrogenase is conserved in the 49-kDa subunit of complex I and has become part of the inhibitor and ubiquinone binding region. We discuss that the fourth ligand of iron-sulfur cluster N2 missing in the PSST subunit may be provided by the 49-kDa subunit.
Anti-inflammatory response of Vitamin D on extracranial vessels after subarachnoid hemorrhage
(2023)
Oral e-Poster Presentations - Booth 1: Vascular A (Aneurysms), September 25, 2023, 1:00 PM - 2:30 PM
Background: Vitamin D has been promoted to vascular regeneration in non-cerebral arteries because of its anti-inflammatory properties. Systematic inflammatory reaction as a multifactorial complication after subarachnoid hemorrhage (SAH), correlated with higher mortality and poor outcome, is the result of a multifactorial mechanism with vasoactive inflammation on extracranial vessels. We therefore hypothesized that vitamin D attenuates the systemic vascular inflammatory reaction.
Methods: We investigated the effect of vitamin D pretreatment (100 ng/kg/d; 5 days) in a blood injection SAH model in adult male C57BL6 mice. Vasomotor function (via wire myograph) of carotid and femoral artery and neurological deficits were measured. Different inflammatory factors such as tumor necrosis factor α (TNF-α), interleukin 6 (IL-6), vascular cell adhesion molecule (VCAM) and intercellular adhesion molecule (ICAM), were also tested.
Results: A significantly enhanced vasorelaxation was identified in Vitamin D pretreated mice (SAH-VitD versus SAH-control: p<0,001; n=10). Missing a relevant difference in vasocontraction of carotid and femoral artery comparing SAH mice with and without vitamin D treatment, there was a significantly higher endothelial related vasorelaxing effect in treated SAH mice (p<0,01, n=5). Neurological deficits in vitamin D pre-treated SAH mice were significantly decreased (p<0,05; n=10). All tested inflammatory factors were down-regulated in vitamin D pre-treated mice (SAH-VitD versus SAH-control: p<0,0001; n=10).
Conclusions: Extracranial vascular Inflammation after SAH, as one of the influencing components in the follow-up after SAH onset, was significantly attenuated by Vitamin D pretreatment. Furthermore, anti-inflammatory effect of vitamin D resulted in a decrease of extracranial vasoconstriction and neurological deficits. Further research should be focused on vitamin D to optimize therapeutic strategies for SAH patients in critical care units.
MRI-detection rate and incidence of lumbar bleeding sources in 190 patients with non-aneurysmal SAH
(2017)
Background: Up to 15% of all spontaneous subarachnoid hemorrhages (SAH) have a non-aneurysmal SAH (NASAH). The evaluation of SAH patients with negative digital subtraction angiography (DSA) is sometimes a diagnostic challenge. Our goal in this study was to reassess the yield of standard MR-imaging of the complete spinal axis to rule out spinal bleeding sources in patients with NASAH.
Methods: We retrospectively analyzed the spinal MRI findings in 190 patients with spontaneous NASAH, containing perimesencephalic (PM) and non-perimesencephalic (NPM) SAH, diagnosed by computer tomography (CT) and/or lumbar puncture (LP), and negative 2nd DSA.
Results: 190 NASAH patients were included in the study, divided into PM-SAH (n = 87; 46%) and NPM-SAH (n = 103; 54%). Overall, 23 (22%) patients had a CT negative SAH, diagnosed by positive LP. MR-imaging of the spinal axis detected two patients with lumbar ependymoma (n = 2; 1,05%). Both patients complained of radicular sciatic pain. The detection rate raised up to 25%, if only patients with radicular sciatic pain received an MRI.
Conclusion: Routine radiological investigation of the complete spinal axis in NASAH patients is expensive and can not be recommended for standard procedure. However, patients with clinical signs of low-back/sciatic pain should be worked up for a spinal pathology.
Background: Previous studies reported decreased volumes of acute stroke admissions during the COVID-19 pandemic. We aimed to examine whether aneurysmal subarachnoid hemorrhage (aSAH) volumes demonstrated similar declines in our department. Furthermore, the impact of the pandemic on disease progression should be analyzed.
Methods: We conducted a retrospective study in the neurosurgical department of the university hospital Frankfurt including patients with the diagnosis of aSAH during the first year of the COVID pandemic. One year cumulative volume for aSAH hospitalization procedures was compared to the year before (03/2020 – 02/2021 vs. 03/2019 – 02/2020) and the last 5 pre-COVID-pandemic years (2015-2020). All relevant patient characteristics concerning family history, disease history, clinical condition at admission, active/past COVID-infection, treatment management, complications, and outcome were analyzed.
Results: Compared to the 84 hospital admissions during the pre-pandemic years, the number of aSAH hospitalizations (n = 56) declined during the pandemic without reaching significance. No significant difference in the analyzed patient characteristics including clinical condition at onset, treatment, complications, and outcome, between 56 patients with aSAH admitted during the COVID pandemic and the treated patients in the last 5 years in the pre-COVID period were found. In our multivariable analysis, we detected young age (p < 0.05; OR 4.2) and no existence of early hydrocephalus (p < 0.05; OR 0.13) as important factors for a favorable outcome (mRS ≤ 0–2) after aSAH during the COVID pandemic. A past COVID-infection was detected in young patients suffering from aSAH (Age < 50years, p < 0.05; OR 10.5) with an increased rate of cerebral vasospasm after aSAH onset (p < 0.05; OR 26). Nevertheless, past COVID-infection did not reach significance as a high-risk factor for unfavorable outcomes.
Conclusion: There was a relative decrease in the number of patients with aSAH during the COVID-19 pandemic. Despite the extremely different conditions of hospitalization, there was no impairing significant effect on the treatment and outcome of admitted patients with aSAH. A past COVID infection seemed to be an irrelevant limiting factor concerning favorable outcomes.
The efficacy of statin-treatment in aneurysmal subarachnoid hemorrhage (SAH) remains controversial. We aimed to investigate the effects of statin-treatment in non-aneurysmal (na)SAH in accordance with animal research data illustrating the pathophysiology of naSAH. We systematically searched PubMed using PRISMA-guidelines and selected experimental studies assessing the statin-effect on SAH. Detecting the accordance of the applied experimental models with the pathophysiology of naSAH, we analyzed our institutional database of naSAH patients between 1999 and 2018, regarding the effect of statin treatment in these patients and creating a translational concept. Patient characteristics such as statin-treatment (simvastatin 40 mg/d), the occurrence of cerebral vasospasm (CVS), delayed infarction (DI), delayed cerebral ischemia (DCI), and clinical outcome were recorded. In our systematic review of experimental studies, we found 13 studies among 18 titles using blood-injection-animal-models to assess the statin-effect in accordance with the pathophysiology of naSAH. All selected studies differ on study-setting concerning drug-administration, evaluation methods, and neurological tests. Patients from the Back to Bedside project, including 293 naSAH-patients and 51 patients with simvastatin-treatment, were recruited for this analysis. Patients under treatment were affected by a significantly lower risk of CVS (p < 0.01; OR 3.7), DI (p < 0.05; OR 2.6), and DCI (p < 0.05; OR 3). Furthermore, there was a significant association between simvastatin-treatment and favorable-outcome (p < 0.05; OR 3). However, dividing patients with statin-treatment in pre-SAH (n = 31) and post-SAH (n = 20) treatment groups, we only detected a tenuously significant higher chance for a favorable outcome (p < 0.05; OR 0.05) in the small group of 20 patients with statin post-SAH treatment. Using a multivariate-analysis, we detected female gender (55%; p < 0.001; OR 4.9), Hunt&Hess ≤III at admission (p < 0.002; OR 4), no anticoagulant-therapy (p < 0.0001; OR 0.16), and statin-treatment (p < 0.0001; OR 24.2) as the main factors improving the clinical outcome. In conclusion, we detected a significantly lower risk for CVS, DCI, and DI in naSAH patients under statin treatment. Additionally, a significant association between statin treatment and favorable outcome 6 months after naSAH onset could be confirmed. Nevertheless, unified animal experiments should be considered to create the basis for developing new therapeutic schemes.
In the title compound, C15H17ClN2O4S, the atoms in the hydantoin ring are coplanar (r.m.s. deviation = 0.006 Å). The crystal structure is stabilized by intermolecular N-H...O hydrogen bonds which link the molecules into centrosymmetric dimers. The dihedral angle subtended by the 4-chlorophenyl group with the plane passing through the hydantoin unit is 82.98 (4)°. The cyclohexyl ring adopts an ideal chair conformation. Key indicators: single-crystal X-ray study; T = 173 K; mean σ(C–C) = 0.002 Å; R factor = 0.030; wR factor = 0.081; data-to-parameter ratio = 15.0.
The crystal structure of the title compound, C15H17BrN2O4S, is stabilized by intermolecular N-H...O hydrogen bonds which link the molecules into centrosymmetric dimers. The dihedral angle subtended by the 4-bromophenyl group with the mean plane passing through the hydantoin unit is 83.29 (5)°. The cyclohexyl group adopts an ideal chair conformation with the methyl group in an equatorial position. Key indicators: single-crystal X-ray study; T = 173 K; mean σ(C–C) = 0.003 Å; R factor = 0.030; wR factor = 0.070; data-to-parameter ratio = 16.8.
Die Garten-Ringelblume ist aus keinem traditionellem Bauern- und Hausgarten wegzudenken. Sie wird im nördlichen Skandinavien ebenso angepflanzt wie am Mittelmeer und ist auf den Höhen des Pamir in Zentralasien so beliebt wie in den weiten Steppen Russlands. Diese außerordentliche Beliebtheit ist neben den geringen Standortansprüchen auf zwei wesentliche Eigenschaften zurückzuführen. Einerseits besitzt die Art zahlreiche Heilkräfte, die zum Teil schon seit der Antike bekannt sind, andererseits bereichern die attraktiven und vor allem reichlich blühenden Pflanzen von Frühling bis Herbst das Blumenbeet.