Bielefeld University

About: Bielefeld University is a education organization based out in Bielefeld, Nordrhein-Westfalen, Germany. It is known for research contribution in the topics: Population & Quantum chromodynamics. The organization has 10123 authors who have published 26576 publications receiving 728250 citations. The organization is also known as: University of Bielefeld & UNIVERSITAET BIELEFELD.

On the evolution of Tn21-like multiresistance transposons: sequence analysis of the gene (aacC1) for gentamicin acetyltransferase-3-I(AAC(3)-I), another member of the Tn21-based expression cassette.

Abstract: The aminoglycoside-3-O-acetyltransferase-I gene (aacC1) from R plasmids of two incompatibility groups (R1033 [Tn1696], and R135) was cloned and sequenced. In the case of R1033, it was shown that theaacC gene is coded by a precise insertion of 833 bp between theaadA promoter and its structural gene in a Tn21 related transposon (Tn1696). This insertion occurs at the same target sequence as that of the OXA-1 β-lactamase gene insertion in Tn2603. Upstream of theaacC gene, we found an open reading frame (ORF) which is probably implicated in the site-specific recombinational events involved in the evolution of this family of genetic elements. These results provide additional confirmation of the role of Tn21 elements as naturally occurring interspecific transposition and expression casssettes.

Local Regularity for Parabolic Nonlocal Operators

Abstract: Weak solutions to parabolic integro-differential operators of order α ∈ (α0, 2) are studied. Local a priori estimates of Holder norms and a weak Harnack inequality are proved. These results are rob...

Silicon as Versatile Player in Plant and Human Biology: Overlooked and Poorly Understood.

Abstract: Silicon (Si) serves as bioactive beneficial element. Si is highly abundant in soil, and occurs ubiquitously in all organisms including plants and humans. During the last three decades, nutritional significance of Si for plant and human health has received increasing attention. Plant Si plays a pivotal role in growth and development, and this beneficial effect depends usually on accumulation in plant tissues, which are then protected from various forms of biotic and abiotic stresses. Likewise, human exposure to Si imparts health benefits and essentially occurs through plant-derived food products. Si bioavailability in human diet, e.g., strengthens bones and improves immune response, as well as neuronal and connective tissue health. Despite this empiric knowledge, the essentiality of Si still remains enigmatic. Thus the link between Si availability for plant development and its profound implication for human welfare should receive attention. This review aims to provide a broad perspective on Si as important element for plant and human nutrition and to define research fields for interdisciplinary research.

Eating Disorder Examination: Deutschsprachige Version des strukturierten Essstörungsinterviews

Abstract: Zusammenfassung. Das Eating Disorder Examination (EDE) von Fairburn und Cooper (1993) ist ein strukturiertes Essstorungsinterview zur Erfassung der spezifischen Psychopathologie von Essstorungen. In der klinischen Forschung und Praxis gilt es weithin als Methode der Wahl fur die Essstorungsdiagnostik. Die in diesem Beitrag vorgestellte deutschsprachige, reubersetzte Version des EDE zeigte in Stichproben von 80 Patientinnen mit Bulimia Nervosa, 144 Patientinnen mit Binge-Eating-Storung und 20 Patientinnen mit Anorexia Nervosa hohe Interrater-Reliabilitaten der Items sowie der Subskalen. Als Indikatoren fur die konvergente Validitat waren die EDE-Subskalen Shape Concern und Weight Concern mit Selbstbeurteilungsskalen zum Korperbild, z.B. dem Fragebogen zum Figurbewusstsein, hoch korreliert. Die EDE-Subskalen Restraint und Eating Concern zeigten signifikante Zusammenhange mit dem in Ernahrungstagebuchern protokollierten Essverhalten, z.B. Mahlzeiten- oder Essanfallshaufigkeit oder Nahrstoffaufnahme. Die Subs...