Results 51 to 60 of about 310,862 (308)

Efectos de los atributos de la hembra de ñandú (Rhea americana) sobre la viabilidad del huevo [PDF]

open access: yes, 2019
We conducted a study throughout a breeding season in a captive-bred population of Greater rheas (Rhea americana) to evaluate the association between egg viability and the female´s body weight and age.
Bazzano, Gisela del Valle   +3 more
core  

Developmental and functional effects of steroid hormones on the neuroendocrine axis and spinal cord [PDF]

open access: yes, 2016
This review highlights the principal effects of steroid hormones at central and peripheral levels in the neuroendocrine axis. The data discussed highlight the principal role of oestrogens and testosterone in hormonal programming in relation to sexual ...
Gonzalez Deniselle, Maria Claudia   +4 more
core   +2 more sources

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

open access: yesPopulation Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa   +2 more
wiley   +1 more source

Testes size, testosterone production and reproductive behaviour in a natural mammalian mating system [PDF]

open access: yes, 2012
1. Testosterone (T) is a key mediator in the expression of numerous morphological and behavioural traits in mammals, but the factors underlying individual variation in circulating T levels are poorly understood. 2.
Lincoln, Gerald A.   +5 more
core  

Defusing Ideological Defenses in Biology [PDF]

open access: yes, 2013
Ideological language is widespread in theoretical biology. Evolutionary game theory has been defended as a worldview and a leap of faith, and sexual selection theory has been criticized for what it posits as basic to biological nature.
Potochnik, Angela
core   +3 more sources

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

open access: yesPopulation Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

An adolescent with bestiality behaviour: Psychological evaluation and community health concerns

open access: yesIndian Journal of Community Medicine, 2016
Bestiality is a serious but less commonly reported form of animal cruelty occurring in a society. It is a punishable sexual offence in India. Bestiality has received little attention in recent psychiatric literature, and even though case reports have ...
Sujata Satapathy   +3 more
doaj   +1 more source

From omics to AI—mapping the pathogenic pathways in type 2 diabetes

open access: yesFEBS Letters, EarlyView.
Integrating multi‐omics data with AI‐based modelling (unsupervised and supervised machine learning) identify optimal patient clusters, informing AI‐driven accurate risk stratification. Digital twins simulate individual trajectories in real time, guiding precision medicine by matching patients to targeted therapies.
Siobhán O'Sullivan   +2 more
wiley   +1 more source

No fitness effects of same‐sex copulations in male red flour beetles

open access: yesEcology and Evolution
Same‐sex sexual behavior occurs in diverse animal taxa, yet its evolutionary maintenance is poorly understood as such behavior seems to be costly and does not directly increase reproductive success.
Birte M. Martens   +3 more
doaj   +1 more source

Evidence to Suggest that Copulatory Vocalizations in Women Are Not a Reflexive Consequence of Orgasm [PDF]

open access: yes, 2011
The current studies were conducted in order to investigate the phenomenon of copulatory vocalizations and their relationship to orgasm in women. Data were collected from 71 sexually active heterosexual women (M age = 21.68 years ± .52) recruited from the
Brewer, Gayle, Hendrie, Colin A.
core   +1 more source

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