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...

Historically, the ship sturgeon (Acipenser nudiventris) occurred in Aral, Caspian, Azov, and Black Sea basins. However, its numbers decreased dramatically during 20th century. It is now considered extirpated from Seas, has almost disappeared Caspian Sea. A. nudiventris listed as Critically Endangered on IUCN Red List and, Georgia, species been undetected for last three decades. We collected 22 ...

A remarkable array of strategies is used to produce sexual differentiation in different species. Complex gene hierarchies govern sex determination pathways, as exemplified by the classic D. melanogaster paradigm, where an interplay of transcriptional, splicing and translational mechanisms operate. Molecular studies support the hypothesis that genetic sex determination pathways evolved in revers...

Renal functions are regulated by steroid sex hormones, but the exhaustive identification of their receptors along the nephron is still lacking. Here, we have localized all known nuclear or membrane-bound sex hormone receptors and some of their activators along the nephron of male and female mice. Almost all receptors are present in male and female kidney, some of them having very restricted loc...

Speakers' sex identification scores were elicited in order to test the possible perceptual function of minor differentiating cues. The variable cues under investlgation, FO range and F3 location, were manipulated and presented to listeners in a pairwise comparison task. Minor F3 location variation yielded results in the expected direction, whereas FO range proved to be too small to be perceptua...

Background: Sex determination using dental features is primarily based upon the comparison of tooth dimensions in males and females. Aims and Objectives: To determine the role of inter-canine width in identification of sex of individuals. Methods: 50 subjects were included in the study. Impressions were taken with alginate and study models prepared. Inter canine width was measured in all the ca...

Previous study of infant burials has suggested that infanticide was routinely practised during the Roman period in Britain. This, together with the observation that there is an adult sex imbalance in favour of males at many Romano-British cemetery sites, has raised the question of female infanticide. We attempted to investigate this possibility by identifying sex in some infant skeletons from R...

Molecular sexing of the diversified avian family Strigidae is difficult. Sex identification using the intron length difference between W and Z chromosomal CHD1 genes, as visualized by agarose gel electrophoreses, often produces ambiguous results. Here we describe a simple method for sexing a variety of Strigidae species using oligonucleotide microarrays, on which several sex-specific probes ope...

Listeners were asked to judge talkers' sex from audio samples. Pictures of men, women, or a neutral visual stimulus were presented concurrent with, 150 ms before, or 150 ms after the spoken stimulus. Listeners' identification of sex for men's voices was most strongly affected by the visual stimulus when it was presented 150 ms after the stimulus. Voice-picture mismatches affected recognition of...

Sex identification provides important information for ecological and evolutionary studies, as well as benefiting snake conservation management. Traditional methods such as cloacal probing or cloacal popping are counterproductive for sex identification concerning very small species, resulting in difficulties in the management of their breeding programs. In this study, the nucleotide sequences of...