Results 211 to 220 of about 8,766,279 (258)
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A sex-structured delayed recruitment model

Mathematical Biosciences, 1996
A delay-difference model for a sex-structured population with delayed recruitment is presented. Constant-effort harvesting is introduced for examining the model's sensitivity to harvesting. Linear analyses about the steady states are performed under various parameter choices.
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Structural and Functional Sex Differences in the Human Hypothalamus

Hormones and Behavior, 2001
Sex differences in the brain may be the basis not only for sex differences in reproduction, gender identity (the feeling of being male or female), and sexual orientation (heterosexuality vs homosexuality), but also for the sex difference in prevalence of psychiatric and neurological diseases ( Swaab and Hofman, 1995 ).
Swaab, D. F.   +4 more
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Sex ratios in geographically structured populations

Trends in Ecology & Evolution, 1986
In his book on sexual selection (1), Darwin documented evidence that the primary sex ratio (the proportion of males at conception) is about 1/2 in a wide variety of species. Otherwise, he explained, a newly conceived member of the rare sex will, on average, have more offspring than one of the common sex, since each offspring has one mother and one ...
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Agonistic Structure Differentiated by Sex

2012
The organization of characters into eight sets forms an implicit empirical hypothesis—the hypothesis that agonistic structure, differentiated by sex, is a fundamental shaping feature in the organization of characters in the novels. We predicted (1) that each of the eight character sets would be sharply defined by a distinct and integrated array of ...
Joseph Carroll   +3 more
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Genome structure and the benefit of sex.

Evolution; international journal of organic evolution, 2011
We examine the behavior of sexual and asexual populations in modular multipeaked fitness landscapes and show that sexuals can systematically reach different, higher fitness adaptive peaks than asexuals. Whereas asexuals must move against selection to escape local optima, sexuals reach higher fitness peaks reliably because they create specific genetic ...
Watson, Richard   +2 more
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Sex differences in medial prefrontal and parietal cortex structure in children with disruptive behavior

Developmental Cognitive Neuroscience, 2021
Kevin Pelphrey   +2 more
exaly  

The Character Structure of Sex Offenders

American Journal of Psychotherapy, 1962
openaire   +2 more sources

Structure Elucidation of the First Sex-Inducing Pheromone of a Diatom

Angewandte Chemie - International Edition, 2023
Peter Bellstedt   +2 more
exaly  

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