Results 61 to 70 of about 2,617,089 (305)

Rich resource environment of fish farms facilitates phenotypic variation and virulence in an opportunistic fish pathogen

open access: yesEvolutionary Applications, 2022
Phenotypic variation is suggested to facilitate the persistence of environmentally growing pathogens under environmental change. Here, we hypothesized that the intensive farming environment induces higher phenotypic variation in microbial pathogens than ...
Katja Pulkkinen   +4 more
doaj   +1 more source

The nature of phenotypic variation in Pavlovian conditioning.

open access: yesJournal of Experimental Psychology: Animal Learning and Cognition, 2018
Pavlovian conditioning procedures result in dramatic individual differences in the topography of learnt behaviors in rats: When the temporary insertion of a lever into an operant chamber is paired with food pellets, some rats (known as sign-trackers) predominantly interact with the lever, while others (known as goal-trackers) predominantly approach the
Adela F. Iliescu   +4 more
openaire   +2 more sources

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida   +6 more
wiley   +1 more source

Interstrain recombinants of human cytomegalovirus uncouple glycoprotein display, virion infectivity, and spread characteristics

open access: yesJournal of Virology
A prevailing model holds that human cytomegalovirus (HCMV) spreads cell-to-cell spread upon initial culturing from clinical specimens and that de novo mutations in the UL128-131 genes reduce expression of glycoprotein complex gH/gL/UL128-131 (pentamer ...
Christopher S. Peterson   +4 more
doaj   +1 more source

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono   +7 more
wiley   +1 more source

Patterns of morphological and genetic variability in UK populations of the shore crab, Carcinus maenas Linnaeus, 1758 (Crustacea: Decapoda: Brachyura) [PDF]

open access: yes, 2006
Previous research has identified extensive inter-population variability in the morphology of the shore crab (Carcinus maenas L.). To determine the source of this variation (genetic or environmental), morphological and genetic data were analysed from ...
Todd, PA   +7 more
core   +1 more source

Non-linear mixed models in the study of growth of naturalized chickens

open access: yesRevista Brasileira de Zootecnia
This study was conducted to examine the inclusion of random effects in non-linear models, identify the most suitable models, and describe the growth of naturalized chickens. Live-weight records of 166 birds of the Graúna Dourada, Nordestina, and Teresina
Vicente Ibiapina Neto   +3 more
doaj   +1 more source

Effect of phenotypic variation on kin selection [PDF]

open access: yesProceedings of the National Academy of Sciences, 1980
An expression for the equilibrium of the mean phenotypic value of a quantitative character is derived for a model in which the fitness of an individual depends on its own phenotype and the mean phenotypic value of a group of related individuals. When selection is weak the equilibrium mean is well predicted by Hamilton's
Boyd, Robert, Richerson, Peter J.
openaire   +2 more sources

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

Phenotypic variation of flowering and vegetative morphological traits along the distribution for the endemic species Yucca capensis (Agavaceae) [PDF]

open access: yes, 2015
"Phenotypic variation across the geographic range of a species depends upon genetic differences within and between populations as well as environmental heterogeneity.
MARIA CLARA ARTEAGA URIBE   +5 more
core   +1 more source

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