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Hereditary angioedema (HAE) is a disease which is associated with random and often unpredictable attacks of painful swelling typically affecting the extremities, bowel mucosa, genitals, face and upper airway. Attacks are associated with significant functional impairment, decreased Health Related Quality of Life, and mortality in the case of laryngeal attacks. Caring for patients with HAE can be challenging due to the complexity of this disease. The care of patients with HAE in Canada is neither optimal nor uniform across the country. It lags behind other countries where there are more organized models for HAE management, and where additional therapeutic options are licensed and available for use. The objective of this guideline is to provide graded recommendations for the management of patients in Canada with HAE. This includes the treatment of attacks, short-term prophylaxis, long-term prophylaxis, and recommendations for self-administration, individualized therapy, quality of life, and comprehensive care. It is anticipated that by providing this guideline to caregivers, policy makers, patients and their advocates, that there will be an improved understanding of the current recommendations regarding management of HAE and the factors that need to be considered when choosing therapies and treatment plans for individual patients. The primary target users of this guideline are healthcare providers who are managing patients with HAE. Other healthcare providers who may use this guideline are emergency physicians, gastroenterologists, dentists and otolaryngologists, who will encounter patients with HAE and need to be aware of this condition. Hospital administrators, insurers and policy makers may also find this guideline helpful.
The article gives an overview of the most important linguistic publications on the Burgenland Croatian dialects so far and concludes that our picture of these dialects is still far from complete. Two examples are given of unsolved questions that illustrate why a more complete picture than we have at the moment is necessary. The author wishes to point out that good quality linguistic fieldwork in this region deserves higher priority than it is given now, especially since the dialects are dying out so fast.
Background: The federal state of Hesse, Germany, introduced a laboratory-based reporting scheme for carbapenem-resistant organisms (CROs).
Method: The results of the first year of mandated reporting of CROs from April 2012 through March 2013 to the Public Health Authority of Frankfurt/Main, responsible for a population of 700,000 inhabitants, are described.
Results: Within a period of 12 months 243 CROs were notified to the health authority. Of these 213 isolates had been reported from 16 of the 17 hospitals in Frankfurt/Main, 6 from ambulatory settings and 24 from clinics outside of Frankfurt/Main. Mean incidence rate per 1,000 patient days in hospitals was 0.138 (range 0.02-0.28).
Conclusion: In Frankfurt/Main almost all hospitals have reported CROs in the study period though the frequency of isolation varies strongly and many facilities only report CROs sporadically. Molecular data indicate a high diversity of different carbapenemases. Autochthonous transmission must be assumed despite the absence of major outbreaks. Rapid and coordinated efforts by clinicians and health departments are crucial to control the spread of CRO infections. The mandatory reporting scheme provides important data to guide the implementation of preventive measures.
Das Vorkommen von Bunias orientalis (Orientalische Zackenschote) konzentriert sich auf den Südwesten Sachsen-Anhalts. Bisher ist die Art vorrangig aus dem Straßenbegleitgrün bekannt, doch zunehmend kann das Einwandern in Halbtrockenrasen und Frischwiesen beobachtet werden. Ein Beispiel dafür ist die 2011 eingerichtete und ca. 24 ha große Ganzjahresstandweide bei Hainrode. 2013 konnten hier 58 Fundpunkte mit 644 Sprossen dokumentiert werden. Die Art wird von den weidenden Salers angenommen und verbissen. Das Abfressen führt zu geringeren Wuchshöhen und vermutlich ist die Reproduktion über Samen auch bei Neuaustrieb deutlich herabgesetzt. Es wird die Möglichkeit, mittels Beweidung der Südharzer Frischwiesen die weitere Ausbreitung von Bunias orientalis zu verhindern bzw. die Art über eine Beweidung zurückzudrängen, diskutiert.
THE WAY IN WHICH PEOPLE COMMUNICATE AFFECTS THEIR RELATIONSHIPS, SOCIAL NETWORK STRUCTURES AND ULTIMATELY THE SOCIAL CAPITAL ACQUIRED THROUGH THEIR CONNECTIONS. SOCIAL CAPITAL IS A KEY FACTOR FOR THE PERFORMANCE OF INDIVIDUALS AND ORGANIZATIONS. THEREFORE, COMPANIES IN THE FINANCIAL SERVICES INDUSTRY INCREASINGLY IMPLEMENT SOCIAL MEDIA PLATFORMS TO FACILITATE COMMUNICATION AMONG EMPLOYEES AND TO LEVERAGE THE SOCIAL CAPITAL BENEFITS. ANALYZING THE INDIVIDUAL NETWORK STRUCTURES OF DIFFERENT COMMUNICATION TYPES, WE FIND THAT A MORE SELF-DISCLOSING COMMUNICATION TYPE (“MEFORMER”) BENEFITS FROM A HIGHER EFFICACY IN BUILDING SOCIAL CAPITAL COMPARED TO A PRIMARILY FACTUAL-ORIENTED COMMUNICATION TYPE (“INFORMER”).
The U-turn is a classical three-dimensional RNA folding motif first identified in the anticodon and T-loops of tRNAs. It also occurs frequently as a building block in other functional RNA structures in many different sequence and structural contexts. U-turns induce sharp changes in the direction of the RNA backbone and often conform to the 3-nt consensus sequence 5'-UNR-3' (N = any nucleotide, R = purine). The canonical U-turn motif is stabilized by a hydrogen bond between the N3 imino group of the U residue and the 3' phosphate group of the R residue as well as a hydrogen bond between the 2'-hydroxyl group of the uridine and the N7 nitrogen of the R residue. Here, we demonstrate that a protonated cytidine can functionally and structurally replace the uridine at the first position of the canonical U-turn motif in the apical loop of the neomycin riboswitch. Using NMR spectroscopy, we directly show that the N3 imino group of the protonated cytidine forms a hydrogen bond with the backbone phosphate 3' from the third nucleotide of the U-turn analogously to the imino group of the uridine in the canonical motif. In addition, we compare the stability of the hydrogen bonds in the mutant U-turn motif to the wild type and describe the NMR signature of the C+-phosphate interaction. Our results have implications for the prediction of RNA structural motifs and suggest simple approaches for the experimental identification of hydrogen bonds between protonated C-imino groups and the phosphate backbone.
Buchbesprechungen
(2014)
Es werden folgende Publikation rezensiert: Baumbach & Pfützenreuter: Steppenlebensräume Europas, Beil et al.: Die Sand-Silberscharte in Hessen, Bönsel et al.: Naturschätze in Gießen, Bönsel et al.: Von Venuskamm, Finkensame und Hasenohr, Bönsel et al.: Die Pflanzenwelt im Westerwald, Hodvina: Die Pflanzenaquarelle des Emil Pfeiffer, Jenrich et al.: Das Rote Moor, Lange: Blütenzauber, Magistrat der Stadt Offenbach am Main: Lebensräume und Artenvielfalt in Offenbach, Schmidt & Meyer: Hessische Naturwaldreservate im Portrait: Kinzigaue.
U radu se ukratko prikazuje Klaićev opis bizovačkoga govora i podjela donjopodravskih govora na dva međusobno ponešto različita tipa: valpovački akcenatski tip govora – okolica Bizovca do Donjega Miholjca – i šaptinovački akcenatski tip – od Donjega Miholjca prema Virovitici. Obilježja bizovačkoga govora uspoređuju se s govorom Podravskih Podgajaca.
Pogled u radom ispunjen život Bratoljuba Klaića pokazuje širinu njegovih interesa i pobuđuje na misao o tom što bi hrvatsko jezikoslovlje moglo napraviti da je djelovalo u povoljnijim uvjetima. Svakako je književnost i kazalište izrazito privlačilo našeg proučavatelja, osobito hrvatska književnost, grčka i rimska, pa je prirodno njegovo sudjelovanje u ediciji Pet stoljeća hrvatske književnosti. Među hrvatskim piscima davnih stoljeća osobito su ga zanimali Hanibal Lucić, Petar Hektorović, Marin Držić i Ivan Gundulić, ali se je pozabavio i komedijom Ljubovnici, kao i novijim piscima Šenoom, Matošem, Ujevićem, Krležom, Kolarom i drugima. Znatnu je pozornost posvetio i folkloru tumačeći njegove jezične značajke. Na zanimljiv način bavio se je akcentom, osobito kad je riječ o akcentu starih pisaca hrvatskih i o naglasku u njihovim suvremenim izvedbama. Bratoljub Klaić bio je jedan od znanstvenika što su hrvatsku književnost tumačili kao prirodnu cjelinu pisaca raznih stoljeća, iz raznih predjela i različitih dijalekatnih osobina.
Der Blog von Minna Salami 'MsAfropolitan' erscheint wie geschaffen für eine Untersuchung afrikanischer Online-Identitätskonstruktion im 21. Jahrhundert vor dem Hintergrund der Globalisierung. Mit dem gleichen Namen ('MsAfropolitan' bzw. 'Ms. Afropolitan') entwickeln sich Blog und Selbstnarrationsfigur unter programmatischer Berufung auf einen erst kürzlich entstandenen Kultur- und Identitätsdiskurs im afrikanischen Kontext: den Afropolitanismus. Da es sich um eine Social-Media-Figur (Blogfigur) und eine Identitätsfigur (Afrofigur) zugleich handelt, erscheint es medienwissenschaftlich relevant herauszufinden, wie die Selbstkonstruktion von MsAfropolitan erfolgt.
DIGITAL CURRENCIES ARE A GLOBALLY SPREADING PHENOMENON THAT IS FREQUENTLY AND PROMINENTLY ADDRESSED BY MEDIA, POLITICS AND ACADEMIA. WE AIM AT GIVING EMPIRICAL INSIGHTS ON WHETHER USERS’ INTEREST REGARDING DIGITAL CURRENCIES IS DRIVEN BY ITS APPEAL AS AN ASSET OR ITS UTILITY AS A CURRENCY. BASED ON OUR EVALUATION, WE FIND STRONG INDICATIONS THAT ESPECIALLY UNINFORMED USERS APPROACHING BITCOIN ARE NOT PRIMARILY INTERESTED IN AN ALTERNATIVE TRANSACTION SYSTEM, BUT SEEK TO PARTICIPATE IN AN ALTERNATIVE INVESTMENT VEHICLE.
The title compound, [Li2(C25H23BN4OP)2], features a centrosymmetric dimeric complex. The four-memberered Li2O2 ring is exactly planar due to symmetry. The Li atom is four-coordinated by two O atoms and by two N atoms of two different pyrazole rings. The dihedral angle between two pyrazole rings bonded to the same B atom is 45.66 (9)°. The B—N—N—Li—N—N metalla ring adopts a boat conformation. The crystal packing is stabilized by van der Waals interactions only.
Big data – more than a hype
(2014)
• Endomicroscopy is a new imaging tool for gastrointestinal endoscopy.
• Panchromoendoscopy with targeted biopsies has become the method of choice for surveillance of patients with inflammatory bowel disease.
• Endomicroscopy can be added after chromoendoscopy to clarify whether standard biopsies are still needed.
• This smart biopsy concept can increase the diagnostic yield of intraepithelial neoplasia and substantially reduce the need for biopsies.
• Endomicroscopy is still mainly used for research but clinical acceptance is increasing because of a multitude of positive studies about the diagnostic value of endomicroscopy.
Benjamin's early reception in the United States can be broken into eight phases: 1) a few notices of his work in the 1930s; 2) the appearance of two major works, without translation, in the 'Zeitschrift für Sozialforschung', when it was published in New York and mimeographed in Los Angeles; 3) several reports of his suicide along with the death of other Jewish and left-wing writers who fell victim to Nazi terror; 4) scattered use of his work in the late 1940s and 1950s; 5) a growing realization in the early 1960s that American literary and cultural criticism was missing something of significance by neglecting Benjamin's work; 6) the appearance in the 1960s of competing portraits of Benjamin by four of his surviving friends, including Hannah Arendt, who edited and introduced the first collection of his writings in English; 7) an uncanny repetition of the earlier neglect, as a significant number of Benjamin's texts are published in Great Britain during the 1970s and early 1980s but remain unavailable in the States; 8) the beginning of a sustained critical engagement with Benjamin in the late 1970s.
A influência de Bertolt Brecht sobre Walter Benjamin é comumente atribuída à assimilação da tradição de crítica marxista pelo último. O presente artigo busca realizar uma crítica imanente e teórica da obra de ambos com o fito de investigar outras faces possíveis dessa influência. Sendo assim, o objetivo é demonstrar que o "Efeito de distanciamento" (em alemão "Verfremdungseffekt") utilizado por Brecht em seu teatro épico tem um papel fundamental na leitura que Benjamin fará do cinema e aparece nas quatro versões do ensaio sobre "A obra de arte na época de sua reprodutibilidade técnica", bem como na sua teoria sobre a "aura".
Im Folgenden werden für das östliche Ruhrgebiet bemerkenswerte Funde aufgeführt. Das Gebiet umfasst die Städte Gelsenkirchen, Essen, Herne, Bochum, Dortmund, Hagen und Hamm sowie die Kreise Recklinghausen, Unna und den Ennepe-Ruhr-Kreis. Die Funde sind zu einem Teil unter www.botanik-bochum.de/html/funde2013.htm mit Fotos versehen. Zur besseren Auswertung wurden hinter den Fundorten die MTB-Angaben (Topographische Karte 1:25.000) angegeben und ggf. eine Bewertung des Fundes für den hiesigen Raum und der floristische Status hinzugefügt. Funde aus dem östlichen Ruhrgebiet, die von nordrhein-westfälischer Bedeutung sind, sind in der Liste "Beiträge zur Flora Nordrhein-Wesfalens"
(Bochumer Botanischer Verein 2014, Beitrag in diesem Jahrbuch) aufgeführt.
Das Herbar von Theodor Beyer, separat gelagert in Marburg (MB), wurde analysiert mit Blick auf Belege aus Hessen. Unter etlichen Tausend Belegen befinden sich auch 1336 Belege aus Hessen, darunter 746 von Theodor Beyer zwischen 1818 und 1827 gesammelte. Weitere bedeutende Sammler aus diesem Raum sind Wilhelm Gärtner und Gottfried Gärtner. Angaben zur Biographie von Theodor Beyer werden gemacht. Die Belege wurden überwiegend um Frankfurt am Main und Hanau gesammelt. Unser Wissen über die ehemalige Verbreitung der hessischen Pflanzen wird durch Belege von Sesleria caerulea, Erstfund für die Region Südwest, Viola elatior, erster sicherer Nachweis für die Untermainebene, oder Belege der Unbeständigen Cyclospermum leptophyllum und Urtica pilulifera erweitert.
Hier werden bemerkenswerte floristische Funde aus Nordrhein-Westfalen aus dem Jahr 2013 zusammengestellt, die aus Sicht der Schriftleitung von landesweiter Bedeutung sind. Die Funde werden im Laufe des Jahres zunächst chronologisch auf die Homepage des Bochumer Botanischen Vereins gestellt und am Ende des Jahres dann zum Artikel zusammengefasst. Bei der Auswahl der Arten für diese Liste ist nicht an Bestätigung bereits lange bekannter Vorkommen gedacht, die an Ort und Stelle durchgehend vorkommen, sondern z. B. an Neufunde seltener Arten, Wiederfunde seltener Arten, die zwischendurch verschwunden schienen (wie z. B. Ackerunkräuter) oder auch bekannte Vorkommen, die erloschen sind oder kurz vor dem Erlöschen stehen. Außerdem nehmen Beobachtungen von neophytischen Arten einen großen Raum ein, die entweder auf dem Wege der Einbürgerung sind, deren Einbürgerung noch nicht allgemein bekannt bzw. anerkannt ist oder die bisher erst selten für Nordrhein-Westfalen veröffentlicht wurden. Ein wichtiges Kriterium für alle aufgeführten Arten ist die Seltenheit im Bundesland oder der betreffenden Großlandschaft.
This study explored the organization of the semantic field and the conceptual structure of moving experiences by investigating German-language expressions referring to the emotional state of being moved. We used present and past participles of eight psychological verbs as primes in a free word-association task, as these grammatical forms place their conceptual focus on the eliciting situation and on the felt emotional state, respectively. By applying a taxonomy of basic knowledge types and computing the Cognitive Salience Index, we identified joy and sadness as key emotional ingredients of being moved, and significant life events and art experiences as main elicitors of this emotional state. Metric multidimensional scaling analyses of the semantic field revealed that the core terms designate a cluster of emotional states characterized by low degrees of arousal and slightly positive valence, the latter due to a nearly balanced representation of positive and negative elements in the conceptual structure of being moved.
'Provinzielle Weite' ist eine Formulierung, die eine Spannweite aufzumachen gedenkt zwischen einem Verständnis von Provinz/provinziell als beschränkter, statischer, nicht weltoffener Lebens- und Denkweise und einer zwar peripheren Position, die aber gleichwohl gesellschaftliche und mentale Veränderungen sensibel wahrnimmt und künstlerische, technische und wissenschaftliche Innovationen in ihrer ganzen "Weite" zu registrieren und produktiv zu verarbeiten weiß. Im besten Fall kann es sogar geschehen, dass die Provinz die Chance des weit Abgelegenen nutzt, die dort gegebenen Spielräume und Eigenheiten produktiv zu wenden, um damit sogar ins Zentrum zurückzuwirken. Mit dieser Schlusswendung und der Nennung eines Zentrums wird in das Begriffsfeld "provinzielle Weite" eingestandenermaßen eine Denkfigur eingeführt, die mit dem Begriffspaar Peripherie und Zentrum umschrieben ist. Der [...] Abschnitt wird sich allein auf Kerner in Weinsberg konzentrieren, um das erstaunliche Phänomen zu erörtern, auf welche Weise es Justinus Kerner gelang, mit geschärftem Bewusstsein in der Provinz und weitab von der großen Hauptstadt zu leben und doch eine selten erreichte, weltoffene, internationale Plattform errichten zu können, kurz, wie es Kerner schaffte, die weite Welt in der Provinz Weinsberg zu implantieren.
The ALICE Collaboration at the LHC reports measurement of the inclusive production cross section of electrons from semi-leptonic decays of beauty hadrons with rapidity |y| < 0.8 and transverse momentum 1 < pT < 10 GeV/c, in pp collisions at √s = 2.76 TeV. Electrons not originating from semi-electronic decay of beauty hadrons are suppressed using the impact parameter of the corresponding tracks. The production cross section of beauty decay electrons is compared to the result obtained with an alternative method which uses the distribution of the azimuthal angle between heavy-flavour decay electrons and charged hadrons. Perturbative QCD predictions agree with the measured cross section within the experimental and theoretical uncertainties. The integrated visible cross section, σb→e = 3.47 ± 0.40(stat) +1.12 −1.33(sys) ± 0.07(norm) μb, was extrapolated to full phase space using Fixed Order plus Next-to-Leading Log (FONLL) calculations to obtain the total bb production ¯ cross section, σbb¯ = 130 ± 15.1(stat) +42.1 −49.8(sys) +3.4 −3.1(extr) ± 2.5(norm) ± 4.4(BR) μb.
Ursine bears are a mammalian subfamily that comprises six morphologically and ecologically distinct extant species. Previous phylogenetic analyses of concatenated nuclear genes could not resolve all relationships among bears, and appeared to conflict with the mitochondrial phylogeny. Evolutionary processes such as incomplete lineage sorting and introgression can cause gene tree discordance and complicate phylogenetic inferences, but are not accounted for in phylogenetic analyses of concatenated data. We generated a high-resolution data set of autosomal introns from several individuals per species and of Y-chromosomal markers. Incorporating intraspecific variability in coalescence-based phylogenetic and gene flow estimation approaches, we traced the genealogical history of individual alleles. Considerable heterogeneity among nuclear loci and discordance between nuclear and mitochondrial phylogenies were found. A species tree with divergence time estimates indicated that ursine bears diversified within less than 2 My. Consistent with a complex branching order within a clade of Asian bear species, we identified unidirectional gene flow from Asian black into sloth bears. Moreover, gene flow detected from brown into American black bears can explain the conflicting placement of the American black bear in mitochondrial and nuclear phylogenies. These results highlight that both incomplete lineage sorting and introgression are prominent evolutionary forces even on time scales up to several million years. Complex evolutionary patterns are not adequately captured by strictly bifurcating models, and can only be fully understood when analyzing multiple independently inherited loci in a coalescence framework. Phylogenetic incongruence among gene trees hence needs to be recognized as a biologically meaningful signal.
Em alguns de seus trabalhos Talcott Parsons descreveu o estabelecimento das sociedades modernas como um processo de diferenciação de diversas esferas de reconhecimento recíproco. Neste texto eu uso a teoria social do reconhecimento de Parsons para examinar características de conflitos sociais recentes. Começo expondo a descrição que Parsons fez das lutas por reconhecimento ocorridas nas sociedades altamente industrializadas de sua época. Depois tomo a concepção de Parsons sobre conflitos por reconhecimento normativamente orientados para indicar tendências que levaram a uma gradual erosão das estruturas de pacificação social postuladas por Parsons nas últimas décadas do século 20. Descrevo as consequências iniciais dessa desintegração como uma “barbarização” dos conflitos sociais. Por barbarizado entendo um estágio da sociedade em que as lutas por reconhecimento social escalaram e se tornaram anômicas, uma vez que não podem mais ser resolvidas nas esferas sistêmicas estabelecidas de negociação. Este texto revela a importância do conceito de reconhecimento para a teoria social ao acompanhar Parsons na análise de transformações estruturais que atualmente emergem em resposta a conflitos sociais. Resumo do editor.
Banater Schnitten, Pariser Stangen, Russische Elegante : zur Reichweite siebenbürgischer Kochrezepte
(2014)
The present paper analyses the gastronomic terms with geographical components, which appear especially in the German cooking books, characteristic for the 19th and 20th century from Transylvania. The linguistic analysis (phonology, morpho-syntax, and semantics) and the pragmatics of these terms help us to reflect the economic, historical and cultural realities of those times; the interethnic interferences from the gastronomic field are as profound as those from the cultural and linguistic field are.
Baldellia ranunculoides : Gewöhnlicher Igelschlauch (Alismataceae), Wasserpflanze des Jahres 2013
(2014)
Von den in Deutschland und auch in Nordrhein-Westfalen gefährdeten Pflanzenarten zählen neben den Ackerwildkräutern die Wasserpflanzen zu der Gruppe von Pflanzen, die am stärksten vom Verlust oder der negativen Beeinflussung ihrer primären Lebensräume betroffen sind. Im Jahr 2013 wurde der Gewöhnliche Igelschlauch (Baldellia ranunculoides) vom Förderkreis Sporttauchen zur "Wasserpflanze des Jahres" gewählt. In Deutschland und in Nordrhein-Westfalen zählt die Art heute zu den bedrohten Arten und wird in den entsprechenden Roten Listen als "stark gefährdet" angegeben. Im vorliegenden Beitrag werden Systematik und Morphologie sowie Lebensraum und Verbreitung dargestellt.
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.
The historical account of Aztec Emperor Auitztol's introduction of the great-tailed grackle Quiscalus mexicanus into the Valley of Mexico (1486–1502) is significant because it documents human translocation of wild birds in Mexico over 500 years ago, before the Spanish Conquest of that land. In the present paper, which defends the account from writings that dispute it, I first review the evidence of how the account was obtained and show that its many details are consistent with what is known from other sources about both the great-tailed grackle and the Aztecs (Nahuas). I then review and examine all published criticisms of the account and explain in detail why they are wrong. The critics have to date presented no persuasive evidence to support their speculation that the Aztecs confused, or might have confused, a natural invasion for an introduction. In contrast to these critics, Bernardino de Sahagún’s research group in the 1500s presented a highly credible, peer-reviewed historical account that documented Aztec introduction of the great-tailed grackle. The pioneering work of these Renaissance Mexican scholars continues to stand as one of the most important records of invasive alien species introduction in ancient times.
Autobiographie, Autofiktion, Metafiktion und Literatur : der Fall "Stadt der Engel" von Christa Wolf
(2014)
Hauptthema des "Buches Stadt der Engel" von Christa Wolf (1929-2011) ist die problematische Feststellung der Realität in unseren heutigen Tagen. Dieses Buch, ein Erzählrahmen funktioniert, der alle Diskurse im Text stützt: den romanhaften, den historischen, den autobiographischen. Sogar die surrealistische Figur eines Schutzengels wird dem Leser geboten, eine Figur, die der Protagonistin als Ausländerin in einem fremden Land hilft, Schicksalsschläge wie die "Entdeckung" der eigenen Vergangenheit als IM Margarete der Stasi zu überwinden. Absicht dieses Essays ist es zu zeigen, wie alle diese Diskurse im Text zu einem literarischen Gewebe artikuliert werden.
Aurora kinase inhibitors displayed activity in pre-clinical neuroblastoma models. Here, we studied the effects of the pan-aurora kinase inhibitor tozasertib (VX680, MK-0457) and the aurora kinase inhibitor alisertib (MLN8237) that shows some specificity for aurora kinase A over aurora kinase B in a panel of neuroblastoma cell lines with acquired drug resistance. Both compounds displayed anti-neuroblastoma activity in the nanomolar range. The anti-neuroblastoma mechanism included inhibition of aurora kinase signalling as indicated by decreased phosphorylation of the aurora kinase substrate histone H3, cell cycle inhibition in G2/M phase, and induction of apoptosis. The activity of alisertib but not of tozasertib was affected by ABCB1 expression. Aurora kinase inhibitors induced a p53 response and their activity was enhanced in combination with the MDM2 inhibitor and p53 activator nutlin-3 in p53 wild-type cells. In conclusion, aurora kinases are potential drug targets in therapy-refractory neuroblastoma, in particular for the vast majority of p53 wild-type cases.
Wie nehmen Sie die Goethe-Universität heute in Zeiten des stärkeren nationalen und internationalen Wettbewerbs der Hochschulen wahr?
Was war rückblickend die wichtigste Veränderung, die Sie während Ihrer Amtszeit initiieren konnten?
Wenn Sie Ihre Zeit als Präsident noch einmal Revue passieren lassen, welche Episode lässt Sie heute noch schmunzeln?
Sie hätten die Chance, 2015 nochmal als Präsident anzutreten, welche Impulse würden Sie dann setzen wollen?
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Die Welt des Rechts lässt sich heute nicht mehr so leicht in nationale oder internationale Sphären ordnen. Wo Lawmaker als private Akteure in einer globalisierten Ökonomie die Normen häufig nachhaltiger bestimmen als staatliches Recht, da ändern sich auch die Anforderungen an die Rechtswissenschaft.
Caspase-2 represents the most conserved member of the caspase family, which exhibits features of both initiator and effector caspases. Using ribonucleoprotein (RNP)-immunoprecipitation assay, we identified the proapoptotic caspase-2L encoding mRNA as a novel target of the ubiquitous RNA-binding protein HuR in DLD-1 colon carcinoma cells. Unexpectedly, crosslinking-RNP and RNA probe pull-down experiments revealed that HuR binds exclusively to the caspase-2-5' untranslated region (UTR) despite that the 3' UTR of the mRNA bears several adenylate- and uridylate-rich elements representing the prototypical HuR binding sites. By using RNAi-mediated loss-of-function approach, we observed that HuR regulates the mRNA and in turn the protein levels of caspase-2 in a negative manner. Silencing of HuR did not affect the stability of caspase-2 mRNA but resulted in an increased redistribution of caspase-2 transcripts from RNP particles to translational active polysomes implicating that HuR exerts a direct repressive effect on caspase-2 translation. Consistently, in vitro translation of a luciferase reporter gene under the control of an upstream caspase-2-5'UTR was strongly impaired after the addition of recombinant HuR, whereas translation of caspase-2 coding region without the 5'UTR is not affected by HuR confirming the functional role of the caspase-2-5'UTR. Functionally, an elevation in caspase-2 level by HuR knockdown correlated with an increased sensitivity of cells to apoptosis induced by staurosporine- and pore-forming toxins as implicated by their significant accumulation in the sub G1 phase and an increase in caspase-2, -3 and poly ADP-ribose polymerase cleavage, respectively. Importantly, HuR knockdown cells remained insensitive toward STS-induced apoptosis if cells were additionally transfected with caspase-2-specific siRNAs. Collectively, our findings support the hypothesis that HuR by acting as an endogenous inhibitor of caspase-2-driven apoptosis may essentially contribute to the antiapoptotic program of adenocarcinoma cells by HuR.
Background: The phagocytic enzyme myeloperoxidase (MPO) acts as a front-line defender against microorganisms. However, increased MPO levels have been found to be associated with complex and calcified atherosclerotic lesions and incident cardiovascular disease. Therefore, this study aimed to investigate a predictive role of MPO, a biomarker of inflammation and oxidative stress, for total and cardiovascular mortality in patients referred to coronary angiography.
Methods and results: MPO plasma concentrations along with eight MPO polymorphisms were determined in 3036 participants of the Ludwigshafen Risk and Cardiovascular Health study (median follow-up 7.75 years). MPO concentrations were positively associated with age, diabetes, smoking, markers of systemic inflammation (interleukin-6, fibrinogen, C-reactive protein, serum amyloid A) and vascular damage (vascular cellular adhesion molecule-1 and intercellular adhesion molecule-1) but negatively associated with HDL-cholesterol and apolipoprotein A-I. After adjustment for cardiovascular risk factors MPO concentrations in the highest versus the lowest quartile were associated with a 1.34-fold risk (95% CI: 1.09–1.67) for total mortality. In the adjusted model the hazard ratio for cardiovascular mortality in the highest MPO quartile was 1.42 (95% CI: 1.07–1.88). Five MPO polymorphisms were positively associated with MPO concentrations but not with mortality. Using Mendelian randomization, we did not obtain evidence for a causal association of MPO with either total or cardiovascular mortality.
Conclusions: MPO concentrations but not genetic variants at the MPO locus are independently associated with risk for total and cardiovascular mortality in coronary artery disease patients.
Association of autoimmune Addison's disease with alleles of STAT4 and GATA3 in European cohorts
(2014)
Background: Gene variants known to contribute to Autoimmune Addison's disease (AAD) susceptibility include those at the MHC, MICA, CIITA, CTLA4, PTPN22, CYP27B1, NLRP-1 and CD274 loci. The majority of the genetic component to disease susceptibility has yet to be accounted for.
Aim: To investigate the role of 19 candidate genes in AAD susceptibility in six European case-control cohorts.
Methods: A sequential association study design was employed with genotyping using Sequenom iPlex technology. In phase one, 85 SNPs in 19 genes were genotyped in UK and Norwegian AAD cohorts (691 AAD, 715 controls). In phase two, 21 SNPs in 11 genes were genotyped in German, Swedish, Italian and Polish cohorts (1264 AAD, 1221 controls). In phase three, to explore association of GATA3 polymorphisms with AAD and to determine if this association extended to other autoimmune conditions, 15 SNPs in GATA3 were studied in UK and Norwegian AAD cohorts, 1195 type 1 diabetes patients from Norway, 650 rheumatoid arthritis patients from New Zealand and in 283 UK Graves' disease patients. Meta-analysis was used to compare genotype frequencies between the participating centres, allowing for heterogeneity.
Results: We report significant association with alleles of two STAT4 markers in AAD cohorts (rs4274624: P = 0.00016; rs10931481: P = 0.0007). In addition, nominal association of AAD with alleles at GATA3 was found in 3 patient cohorts and supported by meta-analysis. Association of AAD with CYP27B1 alleles was also confirmed, which replicates previous published data. Finally, nominal association was found at SNPs in both the NF-κB1 and IL23A genes in the UK and Italian cohorts respectively.
Conclusions: Variants in the STAT4 gene, previously associated with other autoimmune conditions, confer susceptibility to AAD. Additionally, we report association of GATA3 variants with AAD: this adds to the recent report of association of GATA3 variants with rheumatoid arthritis.
Background: Various kinase inhibitors are known to be ATP-binding cassette (ABC) transporter substrates and resistance acquisition to kinase inhibitors has been associated to increased ABC transporter expression. Here, we investigated the role of the ABC transporters ABCB1, ABCC1, and ABCG2 during melanoma cell resistance acquisition to the V600-mutant BRAF inhibitors PLX4032 (vemurafenib) and PLX4720. PLX4032 had previously been shown to interfere with ABCB1 and ABCG2. PLX4720 had been demonstrated to interact with ABCB1 but to a lower extent than PLX4032.
Findings: PLX4032 and PLX4720 affected ABCC1- and ABCG2-mediated drug transport in a similar fashion. In a panel of 16 V600E BRAF-mutated melanoma cell lines consisting of four parental cell lines and their sub-lines with acquired resistance to PLX4032, PLX4720, vincristine (cytotoxic ABCB1 and ABCC1 substrate), or mitoxantrone (cytotoxic ABCG2 substrate), we detected enhanced ABC transporter expression in 4/4 cytotoxic ABC transporter substrate-resistant, 3/4 PLX4720-resistant, and 1/4 PLX4032-resistant melanoma cell lines.
Conclusion: PLX4032 has the potential to induce ABC transporter expression but this potential is lower than that of PLX4720 or cytotoxic ABC transporter substrates. Since ABC transporters confer multi-drug resistance, this is of relevance for the design of next-line therapies.
It is common practice to use a 30-year period to derive climatological values, as recommended by the World Meteorological Organization. However this convention relies on important assumptions, of which the validity can be examined by deriving the uncertainty inherent to using a limited time-period for deriving climatological values. In this study a new method, aiming at deriving this uncertainty, has been developed with an application to precipitation for a station in Europe (Westdorpe) and one in Africa (Gulu). The weather generator framework is used to produce synthetic daily precipitation time-series that can also be regarded as alternative climate realizations. The framework consists of an improved Markov model, which shows good performance in reproducing the 5-day precipitation variability. The sub-seasonal, seasonal and the inter-annual signals are introduced in the weather generator framework by including covariates. These covariates are derived from an empirical mode decomposition analysis with an improved stability and significance assessment. Introducing covariates was found to substantially improve the monthly precipitation variability for Gulu. From the weather generator, 1,000 synthetic time-series were produced. The divergence between these time-series demonstrates an uncertainty, inherent to using a 30-year period for mean precipitation, of 11 % for Westdorpe and 15 % for Gulu. The uncertainty for precipitation 10-year return levels was found to be 37 % for both sites.
In this study we show how size-resolved measurements of aerosol particles and cloud condensation nuclei (CCN) can be used to characterize the supersaturation of water vapor in a cloud. The method was developed and applied during the ACRIDICON-Zugspitze campaign (17 September to 4 October 2012) at the high-Alpine research station Schneefernerhaus (German Alps, 2650 m a.s.l.). Number size distributions of total and interstitial aerosol particles were measured with a scanning mobility particle sizer (SMPS), and size-resolved CCN efficiency spectra were recorded with a CCN counter system operated at different supersaturation levels.
During the evolution of a cloud, aerosol particles are exposed to different supersaturation levels. We outline and compare different estimates for the lower and upper bounds (Slow, Shigh) and the average value (Savg) of peak supersaturation encountered by the particles in the cloud. A major advantage of the derivation of Slow and Savg from size-resolved CCN efficiency spectra is that it does not require the specific knowledge or assumptions about aerosol hygroscopicity that are needed to derive estimates of Slow, Shigh, and Savg from aerosol size distribution data. For the investigated cloud event, we derived Slow ≈ 0.07–0.25%, Shigh ≈ 0.86–1.31% and Savg ≈ 0.42–0.68%.
Antigen presentation to cytotoxic T lymphocytes via major histocompatibility complex class I (MHC I) molecules depends on the heterodimeric transporter associated with antigen processing (TAP). For efficient antigen supply to MHC I molecules in the ER, TAP assembles a macromolecular peptide-loading complex (PLC) by recruiting tapasin. In evolution, TAP appeared together with effector cells of adaptive immunity at the transition from jawless to jawed vertebrates and diversified further within the jawed vertebrates. Here, we compared TAP function and interaction with tapasin of a range of species within two classes of jawed vertebrates. We found that avian and mammalian TAP1 and TAP2 form heterodimeric complexes across taxa. Moreover, the extra N-terminal domain TMD0 of mammalian TAP1 and TAP2 as well as avian TAP2 recruits tapasin. Strikingly, however, only TAP1 and TAP2 from the same taxon can form a functional heterodimeric translocation complex. These data demonstrate that the dimerization interface between TAP1 and TAP2 and the tapasin docking sites for PLC assembly are conserved in evolution, whereas elements of antigen translocation diverged later in evolution and are thus taxon specific.
This article deals with the topic of dyslexia in adults and its consequences for learning German during university studies; the author explores the extent to which an optimized German text influences understanding. The results of research on dyslexia and psycholinguistic research on text understanding show that depending on the text structure and the simplicity of the linguistic means used, different levels of text understanding may be expected. The main tool of the research is text optimization based on a practical application of the "Hamburg concept of understandability", involving four text properties which make the text understandable to different extents.
Der Beitrag widmet sich einem ausgewählten Bereich öffentlicher Pressesprache, wobei strukturelle, semantische und pragmatische Besonderheiten der sogenannten hölzernen Sprache in der deutschsprachigen Zeitung Neuer Weg (NW) aus Rumänien exemplarisch am Beispiel von Beileidstelegrammen zum Ableben der kommunistischen Führer Josef Wissarionowitsch Stalin und Gheorghe Gheorghiu-Dej (1953 bzw.1965) erfasst werden sollen. Mit der Darstellung von Formulierungspräferenzen in einer ausgewählten Textsorte der öffentlichen schriftlichen Kommunikationspraxis und der Analyse dieses soziokulturell geprägten Sprachgebrauchs hinaus sollen auch die sozial-historischen Bedingungen, die für das Auftauchen der Ausdrucksformen der hölzernen Sprache förderlich waren, eruiert werden.
Neste artigo, pretende-se apontar para uma tensão dialética entre o racional e o irracional, entre o conceito e o não conceitual, atualizando o sentido do não idêntico. Essa atualização configura-se na necessidade de potencializar uma filosofia da educação crítico-formativa com base na perspectivada “expressividade estética”. A questão que se coloca é a seguinte: como podemos compreender o sentido do não idêntico, a partir das necessidades de uma educação crítico-formativa e das condições para efetivá-la no âmbito das reflexões filosófico-educacionais? Desse modo, faz-se uma breve incursão no que consiste o papel da dialética negativa do filósofo Theodor W. Adorno para se pensar o sentido da “razão” (ou das razões) na perspectiva do “não idêntico”. Partindo disso, busca--se apontar as possibilidades da crítica imanente adorniana, cujo escopo manifesta na dialética do sofrimento no âmbito do capitalismo. Por fim, pretende-se assinalar e discutir a potencialidade da “expressividade estética” do não idêntico, articulada com algumas possibilidades para a educação no contexto atual.
Bestände, die von Calamagrostis epigejos dominiert werden, gehören zu den charakteristischen Elementen der Vegetation im östlichen Mitteleuropa. In der Literatur wurden Calamagrostis epigejos-Gesellschaften bisher meist als monoton, artenarm und wenig divers beschrieben. Für den Berliner Raum wurden 54 Vegetationsaufnahmen von Brachflächen und ehemaligen Rieselfeldern ausgewertet, in denen C. epigejos dominant war (Deckung >25 %). Die C. epigejos-Dominanzbestände konnten hauptsächlich zwei Gesellschaften zugeordnet werden: der Calamagrostis epigejos-(Galio-Urticetea)-Gesellschaft und der Calamagrostis epigejos-(Onopordetalia/Agropyretalia)-Gesellschaft. Die Calamagrostis epigejos-(Galio-Urticetea)-Gesellschaft wächst auf nährstoffreichen, frischen bis nassen, zum Teil auch zeitweilig überstauten Flächen. Derartige Standortverhältnisse sind vor allem auf eutrophierten ehemaligen Rieselfeldern zu finden. Die Bestände der Calamagrostis epigejos-(Onopordetalia/Agropyretalia)-Gesellschaft kommen auf nährstoffärmeren und trockeneren Standorten vor. Für die mittleren F- und N-Zeigerwerte ergeben sich jeweils signifikante Unterschiede von 1,4 Stufen zwischen beiden Gesellschaften; für die mittleren R-Zeigerwerte beträgt der Unterschied 0,4 Stufen.
Background: Acute leukemia in early age (EAL) is characterized by acquired genetic alterations such as MLL rearrangements (MLL-r). The aim of this case-controlled study was to investigate whether single nucleotide polymorphisms (SNPs) of IKZF1, ARID5B, and CEBPE could be related to the onset of EAL cases (<24 months-old at diagnosis).
Methods: The SNPs (IKZF1 rs11978267, ARID5B rs10821936 and rs10994982, CEBPE rs2239633) were genotyped in 265 cases [169 acute lymphoblastic leukemia (ALL) and 96 acute myeloid leukaemia (AML)] and 505 controls by Taqman allelic discrimination assay. Logistic regression was used to evaluate the association between SNPs of cases and controls, adjusted on skin color and/or age. The risk was determined by calculating odds ratios (ORs) with 95% confidence interval (CI).
Results: Children with the IKZF1 SNP had an increased risk of developing MLL-germline ALL in white children. The heterozygous/mutant genotype in ARID5B rs10994982 significantly increased the risk for MLL-germline leukemia in white and non-white children (OR 2.60, 95% CI: 1.09-6.18 and OR 3.55, 95% CI: 1.57-8.68, respectively). The heterozygous genotype in ARID5B rs10821936 increased the risk for MLL-r leukemia in both white and non-white (OR 2.06, 95% CI: 1.12-3.79 and OR 2.36, 95% CI: 1.09-5.10, respectively). Furthermore, ARID5B rs10821936 conferred increased risk for MLL-MLLT3 positive cases (OR 7.10, 95% CI:1.54-32.68). Our data do not show evidence that CEBPE rs2239633 confers increased genetic susceptibility to EAL.
Conclusions: IKZF1 and CEBPE variants seem to play a minor role in genetic susceptibility to EAL, while ARID5B rs10821936 increased the risk of MLL-MLLT3. This result shows that genetic susceptibility could be associated with the differences regarding MLL breakpoints and partner genes.
Many studies about endocrine pollution in the aquatic environment reveal changes in the reproduction system of biota. We analysed endocrine activities in two rivers in Southern Germany using three approaches: (1) chemical analyses, (2) in vitro bioassays, and (3) in vivo investigations in fish and snails. Chemical analyses were based on gas chromatography coupled with mass spectrometry. For in vitro analyses of endocrine potentials in water, sediment, and waste water samples, we used the E-screen assay (human breast cancer cells MCF-7) and reporter gene assays (human cell line HeLa-9903 and MDA-kb2). In addition, we performed reproduction tests with the freshwater mudsnail Potamopyrgus antipodarum to analyse water and sediment samples. We exposed juvenile brown trout (Salmo trutta f. fario) to water downstream of a wastewater outfall (Schussen River) or to water from a reference site (Argen River) to investigate the vitellogenin production. Furthermore, two feral fish species, chub (Leuciscus cephalus) and spirlin (Alburnoides bipunctatus), were caught in both rivers to determine their gonadal maturity and the gonadosomatic index. Chemical analyses provided only little information about endocrine active substances, whereas the in vitro assays revealed endocrine potentials in most of the samples. In addition to endocrine potentials, we also observed toxic potentials (E-screen/reproduction test) in waste water samples, which could interfere with and camouflage endocrine effects. The results of our in vivo tests were mostly in line with the results of the in vitro assays and revealed a consistent reproduction-disrupting (reproduction tests) and an occasional endocrine action (vitellogenin levels) in both investigated rivers, with more pronounced effects for the Schussen river (e.g. a lower gonadosomatic index). We were able to show that biological in vitro assays for endocrine potentials in natural stream water reasonably reflect reproduction and endocrine disruption observed in snails and field-exposed fish, respectively.
Background: Cichlid fishes show considerable diversity in swim bladder morphology. In members of the subfamily Etroplinae, the connection between anterior swim bladder extensions and the inner ears enhances sound transmission and translates into an improved hearing ability. We tested the hypothesis that those swim bladder modifications coincide with differences in inner ear morphology and thus compared Steatocranus tinanti (vestigial swim bladder), Hemichromis guttatus (large swim bladder without extensions), and Etroplus maculatus (intimate connection between swim bladder and inner ears).
Methodology and results: We applied immunostaining together with confocal imaging and scanning electron microscopy for the investigation of sensory epithelia, and high-resolution, contrast-enhanced microCT imaging for characterizing inner ears in 3D, and evaluated otolith dimensions. Compared to S. tinanti and H. guttatus, inner ears of E. maculatus showed an enlargement of all three maculae, and a particularly large lacinia of the macula utriculi. While our analysis of orientation patterns of ciliary bundles on the three macula types using artificially flattened maculae uncovered rather similar orientation patterns of ciliary bundles, interspecific differences became apparent when illustrating the orientation patterns on the 3D models of the maculae: differences in the shape and curvature of the lacinia of the macula utriculi, and the anterior arm of the macula lagenae resulted in an altered arrangement of ciliary bundles.
Conclusions: Our results imply that improved audition in E. maculatus is associated not only with swim bladder modifications but also with altered inner ear morphology. However, not all modifications in E. maculatus could be connected to enhanced auditory abilities, and so a potential improvement of the vestibular sense, among others, also needs to be considered. Our study highlights the value of analyzing orientation patterns of ciliary bundles in their intact 3D context in studies of inner ear morphology and physiology.
The World Wide Web is the largest information repository available today. However, this information is very volatile and Web archiving is essential to preserve it for the future. Existing approaches to Web archiving are based on simple definitions of the scope of Web pages to crawl and are limited to basic interactions with Web servers. The aim of the ARCOMEM project is to overcome these limitations and to provide flexible, adaptive and intelligent content acquisition, relying on social media to create topical Web archives. In this article, we focus on ARCOMEM’s crawling architecture. We introduce the overall architecture and we describe its modules, such as the online analysis module, which computes a priority for the Web pages to be crawled, and the Application-Aware Helper which takes into account the type of Web sites and applications to extract structure from crawled content. We also describe a large-scale distributed crawler that has been developed, as well as the modifications we have implemented to adapt Heritrix, an open source crawler, to the needs of the project. Our experimental results from real crawls show that ARCOMEM’s crawling architecture is effective in acquiring focused information about a topic and leveraging the information from social media.
Architektur und Albtraum : Erkundungen zu Horrorhäusern, Geisterstädten und metaphysischen Türmen
(2014)
Auf seiner Flucht aus dem Schreckenshaus seiner Ahnen träumt Clifford Pincheon (aus Nathaniel Hawthornes Roman The House of the Seven Gables von 1851) in der Eisenbahn von einem modernen Nomadentum, das einen vom Schicksal befreien könne: Statt sich zum "Gefangenen von Mauern, Backstein" zu machen, wird der Mensch der Zukunft "nirgends - oder besser - überall […] wohnen". Die Vision, sich vom konkreten Ort, von Geschichte zu befreien und gleichsam in der Zeit sesshaft zu werden, verwirklichte sich nicht allein in den silbernen, stromlinienförmigen Home-Trailern und Mobile Homes. Sie verwirklichte sich auf höherer Stufenleiter in den glänzend geschlossenen Spiegelglas-Türmen, die in den Machtzentren des Kapitals heute zunehmend dominieren. Die dunkel oder metallisch spiegelnden Türme wirken wie in heiliges Öl getaucht, rituell gesalbt, dabei jedoch nicht erhaben, sondern verführerisch, bezaubernd: Die fugenlos glatte, glitzernde Hülle aus Spiegelglas und Metall macht die Bauwerke zu Fetischen, phallischen Signifikanten, zu unsterblichen Ikonen einer Macht, deren innerstes Prinzip eine Ökonomie der Zeit ist. Das Kapital träumt seit je davon, sich vom irdischen Raum der Menschen zu befreien: Mit den Türmen - einer artifiziellen Raum-Enklave - gewinnt der Traum strahlend Gestalt. Hierin verdichtet sich gesellschaftlich und technologisch höchste Mobilität, erstarrt in reiner Gegenwart, der Zeitform der global players. Diese arbeiten an einem Schicksal, das jede Bindung an konkreten, irdischen Raum, an Familien und Völker, an vergangene Geschichte verloren hat. Das ist zweifellos unheimlich, doch auf ganz andere Art als das klassische Horrorhaus.