نتایج جستجو برای: sex dimorphism

تعداد نتایج: 211443  

Journal: :Medical research archives 2023

Background. There is a need for assessing personalized nutritional status of the bio elements magnesium (Mg) and calcium (Ca). Objective. We studied Mg Ca by analyzing their concentrations frequency distribution in long-term biological indicator tissue hair. Design. Hair were analyzed 1073 apparently healthy white adult Caucasians both sexes [734 women (♀) 339 men (♂)] with ICP MS. The concentr...

Journal: :Journal of Forensic Sciences & Criminal Investigation 2018

Journal: :Brazilian Journal of Oral Sciences 2021

Sex is one of the first features to be diagnosed in human identification, composing, with age, ancestry and stature, so called “big four”. Aim: The present study aimed metrically analyze sexual dimorphism skulls known age sex from Rio Grande do Sul – Brazil. Methods: This was a crosssectional metrical analysis, which used sample comprised 209 (106 male 103 female) older than 22 years old at tim...

Journal: :Medicine & Science in Sports & Exercise 2021

Journal: :Medicine and Science in Sports and Exercise 2021

Introduction The purpose of this study was to determine the effect resistance exercise (RE)-induced hormonal changes on intramuscular cytokine gene expression after muscle damage in untrained men and women. Methods Men (n = 8, 22 ± 3 yr) women 19 1 completed two sessions 80 unilateral maximal eccentric knee extensions followed by either an upper body RE bout (EX) or a time-matched period (CON)....

Journal: :The Spanish journal of psychology 2006
Juan Fernández María Angeles Quiroga Isabel Del Olmo

People can be classified as attracted to both sexes, to men, to women, or to neither sex, and also as instrumental-expressive, instrumental, expressive, or non-instrumental-expressive. The two hypotheses tested herein are, on the one hand, the relative independence between these two typologies and, on the other, the close relation between sexual dimorphism and sexual attraction, in contrast to ...

Journal: :The Journal of comparative neurology 2013
Martin Streinzer Christina Kelber Sarah Pfabigan Christoph J Kleineidam Johannes Spaethe

Sexually dimorphic sensory systems are common in Hymenoptera and are considered to result from sex-specific selection pressures. An extreme example of sensory dimorphism is found in the solitary bee tribe Eucerini. Males of long-horned bees bear antennae that exceed body length. This study investigated the pronounced sexual dimorphism of the peripheral olfactory system and its representation in...

Journal: :Marine pollution bulletin 2004
Jessica Straw Dan Rittschof

Imposex, male secondary sexual characteristics in female snails, is a morphological indicator of sub-lethal exposure to organotin compounds. The relation between imposex and behavioral responses to sex pheromones was studied. Responses of snails to sex specific pheromones were determined in laboratory assays. Females and males from a low imposex site and females, imposex females and males from ...

Journal: :Evolution; international journal of organic evolution 2011
Lynda F Delph Janet C Steven Ingrid A Anderson Christopher R Herlihy Edmund D Brodie

Genetic correlations between the sexes can constrain the evolution of sexual dimorphism and be difficult to alter, because traits common to both sexes share the same genetic underpinnings. We tested whether artificial correlational selection favoring specific combinations of male and female traits within families could change the strength of a very high between-sex genetic correlation for flowe...

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