Results 41 to 50 of about 11,237,342 (264)

Individual Variations in Immunity [PDF]

open access: yesAmerican Journal of Public Health and the Nations Health, 1935
IN 1806 Thomas Jefferson paid the following tribute to Jenner: " Future nations will know by history the loathsome smallpox has existed and by you has been extirpated." Similar predictions have been made upon the discovery of protective immunization against other diseases.
openaire   +2 more sources

Trait-Based Variation in the Foraging Performance of Individuals

open access: yesFrontiers in Ecology and Evolution, 2021
Although average, species-level interaction strength plays a key role in driving population dynamics and community structure, predator-prey interactions occur among individuals.
John P. DeLong   +2 more
doaj   +1 more source

Isolating the cow-specific part of residual energy intake in lactating dairy cows using random regressions

open access: yesAnimal, 2018
The ability to properly assess and accurately phenotype true differences in feed efficiency among dairy cows is key to the development of breeding programs for improving feed efficiency.
A. Fischer   +3 more
doaj   +1 more source

Individual variation in early‐life telomere length and survival in a wild mammal

open access: yesMolecular Ecology, 2019
Individual variation in survival probability due to differential responses to early‐life environmental conditions is important in the evolution of life histories and senescence.
Sil H. J. Lieshout   +5 more
semanticscholar   +1 more source

Differences in mitochondrial efficiency explain individual variation in growth performance

open access: yesProceedings of the Royal Society B, 2019
The physiological causes of intraspecific differences in fitness components such as growth rate are currently a source of debate. It has been suggested that differences in energy metabolism may drive variation in growth, but it remains unclear whether ...
K. Salin   +7 more
semanticscholar   +1 more source

Comprehensive Analysis of Individual Variation in the Urinary Proteome Revealed Significant Gender Differences*

open access: yesMolecular & Cellular Proteomics, 2019
Urinary proteomes from 49 healthy adult donors were comprehensively analyzed. Besides age, gender was found to be a crucial factor contributing to individual variation.
Chen Shao   +12 more
semanticscholar   +1 more source

Biological Variation of Procalcitonin in Healthy Individuals [PDF]

open access: yesClinical Chemistry, 2004
Procalcitonin (PCT) is a stable 116-amino acid precursor molecule to the hormone calcitonin. High serum concentrations have been reported in patients with severe systemic bacterial or fungal, but not viral, infections (1). Information on the biological variation of PCT is not available; this is limiting because the clinical utility of laboratory data ...
BARASSI A   +2 more
openaire   +3 more sources

The life history of human foraging: Cross-cultural and individual variation

open access: yesScience Advances, 2019
Hunters exhibit high skill across the life span, individuals vary substantially in skill, and age-related peaks vary across sites. Human adaptation depends on the integration of slow life history, complex production skills, and extensive sociality ...
Jeremy M. Koster   +40 more
semanticscholar   +1 more source

Social and Individual Factors Influence Variation in Offspring Care in the Cooperatively Breeding Western Australian Magpie

open access: yesFrontiers in Ecology and Evolution, 2019
In cooperatively breeding species, the level of investment in young can vary substantially. Despite receiving considerable research attention, how and why investment in young varies with cooperatively breeding group members remains unclear.
Kyana N. Pike   +3 more
doaj   +1 more source

Are the Current Guidelines on Caffeine Use in Sport Optimal for Everyone? Inter-individual Variation in Caffeine Ergogenicity, and a Move Towards Personalised Sports Nutrition

open access: yesSports Medicine, 2017
Caffeine use is widespread in sport, with a strong evidence base demonstrating its ergogenic effect. Based on existing research, current guidelines recommend ingestion of 3–9 mg/kg approximately 60 min prior to exercise.
C. Pickering, J. Kiely
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy