Results 81 to 90 of about 801,183 (312)
Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms
FEBS Letters, EarlyView.Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze +3 more
wiley +1 more source
Scientia Agricola, 2008 The purposes of this study were to determine the percentage of out-crossing, isolation distance and pollinator insect species for cotton (Gossypium hirsutum L.) seed production in the Aydin region in Turkey.
Taner Bozbek +5 more
doaj +1 more source
Sex without crossing over in the yeast Saccharomycodes ludwigii
Genome Biology, 2021 Background Intermixing of genomes through meiotic reassortment and recombination of homologous chromosomes is a unifying theme of sexual reproduction in eukaryotic organisms and is considered crucial for their adaptive evolution.
Ioannis A. Papaioannou +8 more
doaj +1 more source
FEBS Letters, EarlyView.α2 → 8 polysialic acid elicits poor immunogenicity. Small‐angle scattering shows a supramolecular structure with parallel‐chain binding, although in different forms at μm and mm calcium. The major histocompatibility complex requires molecular weights around 2000 Da to produce antibodies, and 2000 Da polysialic oligomers will bind in these structures ...
Kenneth A. Rubinson
wiley +1 more source
Patterns of Genetic Variability in Genomic Regions with Low Rates of Recombination
Current Biology, 2019 Surveys of DNA sequence variation have shown that the level of genetic variability in a genomic region is often strongly positively correlated with its rate of crossing over (CO) [1–3].
H. Becher +2 more
semanticscholar +1 more source
FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
Comparison of mobile robot positioning techniques
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2021 The article compares the accuracy of mobile robot positioning by the technique based on genetic algorithms, which are related to artificial intelligence, and by the trilateration technique.
Iuliia Yamnenko, Vladislav Osokin
doaj +1 more source
Social context prevents heat hormetic effects against mutagens during fish development
FEBS Letters, EarlyView.This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere +5 more
wiley +1 more source
Труды по прикладной ботанике, генетике и селекции, 2020 Background. The problem of nucleus-plastid interactions is obviously of theoretical and practical importance. However, the lack of knowledge in this area of plant research is, for the most part, caused by difficulties in isolating the contribution of the
A. V. Usatov +3 more
doaj +1 more source
Automatic Routing of Goldstone Diagrams using Genetic Algorithms [PDF]
, 2019 This paper presents an algorithm for an automatic transformation (=routing) of time ordered topologies of Goldstone diagrams (i.e. Wick contractions) into graphical representations of these topologies. Since there is no hard criterion for an optimal routing, the proposed algorithm minimizes an empirically chosen cost function over a set of parameters ...
arxiv +1 more source