Results 91 to 100 of about 12,935,991 (392)

Genetic Variation

open access: yesPopulation Genetics with R, 2020
An introduction to randomness and the neutral theory of molecular evolution and how it contributes to levels of genetic diversity in populations. The estimation of random shifts in allele frequencies over time is discussed using the binomial probability ...
Á. J. Láruson, F. A. Reed
semanticscholar   +1 more source

An Improved MG Model for Turbulent Mixing Parameterization in the Northwestern South China Sea

open access: yesJournal of Marine Science and Engineering
Using in situ microstructure observations from 2010 to 2018, this study assesses the applicability of turbulent mixing parameterization schemes in the northwestern South China Sea (NSCS) and improves the MG model proposed by MacKinnon and Gregg in 2003 ...
Minghao Hu   +5 more
doaj   +1 more source

Symmetry Breaking and Time Variation of Gauge Couplings [PDF]

open access: yes, 2002
Astrophysical indications that the fine structure constant has undergone a small time variation during the cosmological evolution are discussed within the framework of the standard model of the electroweak and strong interactions and of grand unification.
Calmet   +21 more
core   +2 more sources

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS 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

Variations on a game

open access: yesJournal of Combinatorial Theory, Series A, 1982
This survey paper contains several nice results of the authors on special positional games called "amoeba games". Two players, Maker and Breaker, move alternately with Maker going first. In each turn they occupy previously unoccupied vertices of a hypergraph.
László Csirmaz, József Beck
openaire   +3 more sources

Extreme Values, Regular Variation, and Point Processes

open access: yes, 1987
Contents: Preface * Preliminaries * Domains of Attraction and Norming Constants * Quality of Convergence * Point Processes * Records and Extremal Processes * Multivariate Extremes * References * Index ...
S. Resnick
semanticscholar   +1 more source

Quasiconformal variation of slit domains [PDF]

open access: yes, 2001
We use quasiconformal variations to study Riemann mappings onto variable single slit domains when the slit is the tail of an appropriately smooth Jordan arc.
Earle, Clifford J., Epstein, Adam L.
core   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS 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

Schizophrenia risk from complex variation of complement component 4

open access: yesNature, 2016
Schizophrenia is a heritable brain illness with unknown pathogenic mechanisms. Schizophrenia’s strongest genetic association at a population level involves variation in the major histocompatibility complex (MHC) locus, but the genes and molecular ...
Aswin Sekar   +16 more
semanticscholar   +1 more source

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