Results 101 to 110 of about 1,248,358 (272)
Grandparental effects on reproductive strategizing [PDF]
This paper analyzes data from the household registers for two villages in the Nôbi region of central Japan in the late Edo period (1717-1869) to assess how grandparents may have affected reproductive strategizing in stem families.
G. William Skinner
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Effective Fitness Landscapes for Evolutionary Systems
, 1999 In evolution theory the concept of a fitness landscape has played an important role, evolution itself being portrayed as a hill-climbing process on a rugged landscape.
Stephens, C. R.
core +2 more sources
Function‐driven design of a surrogate interleukin‐2 receptor ligand
FEBS Letters, EarlyView.Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang +9 more
wiley +1 more source
Endogenous and exogenous constraints in the population changes of wild boar (sus scrofa Linnaeus, 1758) [PDF]
, 2004 The population dynamics of wild boar (Sus scrofa) was studied in a time series over 26 years using data from the Regional Hunting Reserve of Somiedo (northern Spain).
Nores, Carlos, Uzal Fernandez, Antonio
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The Animal Sexes as Historical Explanatory Kinds [PDF]
, 2020 Though biologists identify individuals as ‘male’ or ‘female’ across a broad range of animal species, the particular traits exhibited by males and females can vary tremendously.
Franklin-Hall, Laura
core +1 more source
Mechanisms of parasite‐mediated disruption of brain vessels
FEBS Letters, EarlyView.Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira +3 more
wiley +1 more source
Sarda female lambs bred at pasture: growth rate from weaning to reproductive activity [PDF]
, 2007 The traditional dairy sheep system in Sardinia presents 2 lambing seasons: in November-December for mature ewes and in February-March for primiparous. Replacement (20-25% of female lambs) usually came from mature ewes whereas all lambs born in January ...
Acciaro, Marco +2 more
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Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Digest of Russian Space Life Sciences, issue 33 [PDF]
This is the thirty-third issue of NASA's USSR Space Life Sciences Digest. It contains abstracts of 55 papers published in Russian journals. The abstracts in this issue have been identified as relevant to the following areas of space biology and medicine:
Rowe, Joseph +2 more
core +1 more source
Comparison of breed of dairy cow under grass-based spring milk production systems [PDF]
, 2006 End of project reportThe objective of this study was to investigate the potential differences among different dairy cow breeds across two feeding systems on milk production, udder health, milking characteristics, body weight, body condition score ...
Buckley, Frank, Dillon, Pat, Walsh, S.W.
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