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Sex-specific costs of rearing a nestling and its implications in the brood sex ratio of Magellanic penguins
(Springer, 2021-08)
In birds, possible explanations for a bias in brood sex ratio include differential cost of rearing nestlings of different sexes, and different parental fitness returns related to offspring sex. We studied brood sex ratio ...
Sex differences in body fluid homeostasis: Sex chromosome complement influences on bradycardic baroreflex response and sodium depletion induced neural activity
(Pergamon-Elsevier Science Ltd, 2015-12)
Clinical and basic findings indicate that angiotensin II (ANG II) differentially modulates hydroelectrolyte and cardiovascular responses in male and female. But are only the activational and organizational hormonal effects ...
Sexual Risk, Behavior, and HIV Testing and Status among Male and Transgender Women Sex Workers and their Clients in Lima, Peru
(Taylor and Francis, 2018)
Objectives: To determine the socio-demographics, sexual practices, and HIV prevalence of male sex workers (MSWs), transwomen sex workers (TSWs), and their male clients in Lima, Peru. Methods –: Following ethnographic mapping ...
Understanding STI Risk and Condom Use Patterns by Partner Type Among Female Sex Workers in Peru
(Bentham Science Publishers, 2014)
While brothel-based sex work is regulated by the Peruvian government, there is little data on STI risk factors reported by female sex workers (FSW). This study compared high risk behaviors among 120 Peruvian FSW from ...
The emergence of sex differences in personality traits in early adolescence: A cross-sectional, cross-cultural study
(American Psychological Association, 2015)
Although large international studies have found consistent patterns of sex differences in personality traits among adults (i.e., women scoring higher on most facets), less is known about cross-cultural sex differences in ...
Big five personality inventory: Sex differences in a peruvian sample
(Ulster Institute for Social ResearchGB, 2021)
Empirical research in the personality field, most of it done in developed countries, supports the notion of sex differences. Much less research has been done in developing countries. The purpose of the present research ...
Blow flies, synanthropy and sex ratio: are the deviations in the sex proportion linked to human transformation of landscapes?
(Elsevier Science, 2021-07)
In most species, several factors like time of emergence, age at maturation, reproductive life span, survival of males and females, mating behavior, differential resource use, and migration patterns may affect the adult sex ...
Estradiol-dependent axogenesis and Ngn3 expression are determined by XY sex chromosome complement in hypothalamic neurons
(Nature Research, 2020-12)
Hypothalamic neurons show sex differences in neuritogenesis, female neurons have longer axons and higher levels of the neuritogenic factor neurogenin 3 (Ngn3) than male neurons in vitro. Moreover, the effect of 17-β-estradiol ...
Sex differences in covid-19 fatality rate and risk of death: An analysis in 73 countries, 2020-2021
(Le Infezioni in Medicina, 2021)
There is a worrying lack of epidemiological data on the sex differential in COVID-19 fatality rates. We ex-amined the Global Health 50/50 tracks of sex-disag-gregated infection and mortality COVID-19 data from 73 countries ...
Empathy, sex and fluid intelligence as predictors of theory of mind
(Elsevier, 2013-04)
Individual differences in theory of mind (ToM) are affected by a variety of factors. We investigated the relationship between empathy, sex and fluid intelligence (FI) as predictors of ToM in a random probabilistic sample ...