Results 111 to 120 of about 3,121,819 (231)

Frequency and Viability of Diploid and Haploid Males Offsprings of Mated Females of Solitary Endoparasitoid (DIADROMUS Pulchellus) (Ichneumonidae) [PDF]

open access: yesComptes Rendus de l'Academie des Sciences. Serie 3, Sciences de la Vie 324 (2001) 149-158, 2006
Sex determination in the order Hymenoptera is based on arrhenotoky, hymenopteran males are usually haploid and females diploid. Males of the Ichneumonidae Diadromus pulchellus, solitary endoparasitoid of A. assectella pupae are normally haploid, but diploid males are present in a natural population and can be obtained in a experimental population.
arxiv  

Hesperinus ninae Papp & Krivosheina (Diptera: Hesperinidae) from Georgia: the second record of this peculiar species

open access: yesBiodiversity Data Journal, 2013
A second record of Hesperinus ninae Papp & Krivosheina, 2010 is given on the basis of material collected by sweep net from the northern slope of the Saguramo range north of Tbilisi, Georgia.
Olavi Kurina
doaj   +1 more source

Modeling sexual selection in Túngara frog and rationality of mate choice [PDF]

open access: yesarXiv, 2016
The males of the specie of frogs Engystomops pustulosus produce simple and com- plex calls to lure females, as a way of Intersexual selection. Complex calls lead males to a greater reproductive success than simple calls do. However, the complex calls are also more attractive to the main predator of these amphibians, the bat Trachops cirrhosus ...
arxiv  

A new Cyrtoneuropsis Malloch from Brazil (Diptera, Muscidae)

open access: yesRevista Brasileira de Entomologia, 2011
A new Cyrtoneuropsis Malloch from Brazil (Diptera, Muscidae). This paper presents the description of a new species of Cyrtoneuropsis Malloch from São Carlos, São Paulo providing illustrations of the male and female terminalia and with a brief discussion ...
Márcia S. Couri   +1 more
doaj   +1 more source

Expressions of Sentiments During Code Reviews: Male vs. Female [PDF]

open access: yesProceedings of the 26th IEEE International Conference on Software Analysis, Evolution and Reengineering, 2018, 2018
Background: As most of the software development organizations are male-dominated, female developers encountering various negative workplace experiences reported feeling like they "do not belong". Exposures to discriminatory expletives or negative critiques from their male colleagues may further exacerbate those feelings.
arxiv  

Treatment with Terminalia chebula (retz.): possible mechanism of inhibition of spermatogenesis and fertility in albino mice

open access: yesJournal of Applied Pharmaceutical Research
Background: There has been a continued effort to develop an effective male contraceptive of plant origin due to its ready availability, cost-effectiveness, and fewer side effects.
Prakash Chandra Gupta, Laxmi Yadav
doaj   +1 more source

Mating Instabilities Lead to Sympatric Speciation [PDF]

open access: yesarXiv, 2002
One of the most challenging issues of evolutionary biology concerns speciation, the emergence of new species from an initial one. The huge amount of species found in nature demands a simple and robust mechanism. Yet, no consensus has been reached concerning a reasonable disruptive selection mechanism that prevents mixing genes among the emerging ...
arxiv  

A new species of the genus Minthodes Brauer & Bergenstamm (Diptera: Tachinidae) from Iran [PDF]

open access: yesJournal of Insect Biodiversity and Systematics
Minthodes oramanatae Gilasian & Ziegler sp. nov. is described as new to science from western province of Kermanshah, Iran. This species is separated from other Minthodes species by its shiny black abdomen, narrow frons, long postpedicel, presence of ...
Ebrahim Gilasian   +3 more
doaj  

The Advantage is at the Ladies: Brain Size Bias-Compensated Graph-Theoretical Parameters are Also Better in Women's Connectomes [PDF]

open access: yesarXiv, 2015
In our previous study we have shown that the female connectomes have significantly better, deep graph-theoretical parameters, related to superior "connectivity", than the connectome of the males. Since the average female brain is smaller than the average male brain, one cannot rule out that the significant advantages are due to the size- and not to the
arxiv  

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