Results 41 to 50 of about 106,236 (355)

Why Y chromosome is shorter and women live longer? [PDF]

open access: yesEur. Phys. J. B 65, 149-153 (2008), 2008
We have used the Penna ageing model to analyze how the differences in evolution of sex chromosomes depend on the strategy of reproduction. In panmictic populations, when females (XX) can freely choose the male partner (XY) for reproduction from the whole population, the Y chromosome accumulates defects and eventually the only information it brings is a
arxiv   +1 more source

Two new species of the subgenus Peytonulus of Sabethes (Diptera: Culicidae) from Colombia

open access: yesMemorias do Instituto Oswaldo Cruz, 1995
The adults and male genitalia of two new species of Sabethes subgenus Peytonulus are described from Colombia. The male genitalia are illustrated and the species are distinguished from one another and other members of the subgenus.
Ralph E. Harbach
doaj   +1 more source

Excitatory and inhibitory interactions affect the balance of chorus activity and energy efficiency in the aggregation of male frogs: Theoretical study using a hybrid dynamical model [PDF]

open access: yesarXiv, 2021
We theoretically study the role of excitatory and inhibitory interactions in the aggregations of male frogs. In most frogs, males produce sounds to attract conspecific females, which activates the calling behavior of other males and results in collective choruses.
arxiv  

How women organize social networks different from men [PDF]

open access: yesScientific Reports 3, 1214 (2013), 2012
Superpositions of social networks, such as communication, friendship, or trade networks, are called multiplex networks, forming the structural backbone of human societies. Novel datasets now allow quantification and exploration of multiplex networks. Here we study gender-specific differences of a multiplex network from a complete behavioral dataset of ...
arxiv   +1 more source

Androgen-independent events in penile development in humans and animals. [PDF]

open access: yes, 2020
The common view on penile development is that it is androgen-dependent, based first and foremost on the fact that the genital tubercle forms a penis in males and a clitoris in females.
Baskin, Laurence   +6 more
core   +1 more source

Attitudes and beliefs about family and domestic violence in faith‐based communities: An exploratory qualitative study

open access: yesAustralian Journal of Social Issues, Volume 57, Issue 4, Page 880-897, December 2022., 2022
Abstract Family and domestic violence (FDV) is a major social, economic and health issue that is associated with a range of physical, mental and behavioural health outcomes. Religion and faith are powerful and influential in shaping the lives of many individuals and societies, in addition to the social practices, norms and structures that are ...
Mandy Truong   +5 more
wiley   +1 more source

On the identification of two Brazilian leafhoppers: redescription of Scoposcartula frontaliana comb. nov. and description of the female of S. talitae (Hemiptera: Cicadellidae: Cicadellini)

open access: yesZoologia (Curitiba), 2012
This paper deals with two species of Scoposcartula Young, 1977 that are very similar to each other externally (form and color pattern): S. frontaliana (Metcalf, 1955) comb. nov. (from the state of Bahia, NE. Brazil) and S.
Gabriel Mejdalani   +1 more
doaj   +1 more source

Glyphidops (Glyphidops) filosus (Diptera: Neriidae) revisited, with special attention to the morphology of the male and female terminalia [PDF]

open access: yesPapéis Avulsos de Zoologia, 2020
Although a recent revision of the genus Glyphidops Enderlein covered most its known, some of the Brazilian forms were not surveyed. Here we take advantage of the excellent morphological work available in the literature and redescribe Glyphidops ...
Isabela de Oliveira Motta   +1 more
doaj   +1 more source

Evolution of female choice under intralocus sexual conflict and genotype-by-environment interactions [PDF]

open access: yesLi, X. Y., & Holman, L. (2018). Evolution of female choice under intralocus sexual conflict and genotype-by-environment interactions. Phil. Trans. R. Soc. B, 373(1757), 20170425, 2018
In many species, females are hypothesised to obtain 'good genes' for their offspring by mating with males in good condition. However, female preferences might deplete genetic variance and make choice redundant. Additionally, high-condition males sometime produce low-fitness offspring, for example because of environmental turnover and gene-by ...
arxiv   +1 more source

A population‐based study of homelessness, antisocial behaviour and violence victimisation among young adults in Victoria, Australia

open access: yesAustralian Journal of Social Issues, Volume 57, Issue 4, Page 762-782, December 2022., 2022
Abstract Homeless young adults are at increased risk for contact with the police and are overrepresented in the justice system. This study explored associations between homelessness, antisocial behaviour and violence victimisation using longitudinal panel data gathered through young adulthood.
Jessica A. Heerde   +3 more
wiley   +1 more source

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