Results 61 to 70 of about 213,884 (312)

A study of the relationship between the general physical fitness of adolescents aged 15 – 19 years and their parents [PDF]

open access: yes, 2008
The purpose of this study was to determine the degree of familial resemblance in general physical fitness between adolescents and their parents. Data was gathered from a sample of adolescent-parent pairs.
Law, Christopher J.
core  

Diversity maintenance on neutral landscapes: an argument for recombination

open access: yes, 2002
It has been demonstrated that several standard evolutionary computation test problems can be solved by a simple hill climbing search algorithm - often more efficiently than by a population based evolutionary algorithm.
J. Wiles   +5 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Population genetic diversity and fitness in multiple environments

open access: yesBMC Evolutionary Biology, 2010
Background When a large number of alleles are lost from a population, increases in individual homozygosity may reduce individual fitness through inbreeding depression.
McGreevy Thomas J   +8 more
doaj   +1 more source

Nature beats nurture: a case study of the physiological fitness of free-living and laboratory-reared male Anopheles gambiae s.l. [PDF]

open access: yes, 2007
Laboratory experimentation forms the basis for most of our knowledge of the biology of many organisms, in particular insects. However, the accuracy with which laboratory-derived estimates of insect life history and behaviour can predict their fitness and
Killeen, G.F.   +20 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Male-benefit sexually antagonistic genotypes show elevated vulnerability to inbreeding

open access: yesBMC Evolutionary Biology, 2017
Background There is theoretical and empirical evidence for strong sexual selection in males having positive effects on population viability by serving to purify the genome of its mutation load at a low demographic cost. However, there is also theoretical
Karl Grieshop   +2 more
doaj   +1 more source

Automated Problem Decomposition for the Boolean Domain with Genetic Programming [PDF]

open access: yes, 2013
Researchers have been interested in exploring the regularities and modularity of the problem space in genetic programming (GP) with the aim of decomposing the original problem into several smaller subproblems.
Otero, Fernando E.B.   +3 more
core   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Genetic architecture of rainbow trout survival from egg to adult

open access: yes, 2010
Survival from birth to a reproductive adult is a challenge that only robust individuals resistant to a variety of mortality factors will overcome. To assess whether survival traits share genetic architecture throughout the life cycle, we estimated ...
Paananen, T.   +5 more
core   +1 more source

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