Sexual variations

Ultimately, the current view of both American psychiatry and the World Health Organization is the soundest public statement yet about sexual orientation that bisexuality and homosexuality are natural sexual variations, that individual sexual orientations lie on a continuum, and that they are based on gene and/or environment-dependent neuroendocrine alterations of sexual brain organization. This set of ideas derives from... 

DUFA, M., HOSSAERT-MCKEY, M., ANSTETT, M.C., Temporal and sexual variation of leaf-produced pollinator-attracting odours in the dwarf palm. Oecologia, 2004,139, 392-398. 

LOCAL AND SEXUAL VARIATION OF TOXICITY IN A JAPANESE NEWT C. PYRRHOGASTER... 

Discrimination can take many forms, but, as pointed out in Chapter 4, all types are likely to be the result of stereotypical thinking and behaviour present in organizations coupled with institutional discrimination. Variations of sexual, racial or disability discrimination within mentoring programs include the following ... 

Taken for recreational use as an intoxicant, typical acute effects described by misusers are euphoria, relaxation, and increased sexuality (Galloway et al. 1997 Miotto et al. 2001). On the street, GHB is taken in capfuls or teaspoons of a salty/sour liquid, which because of variations in concentration, may range in dose from 0.5 to 5.0 g. Common side effects are nausea, headache, itching, and vomiting (Borgen et al. 2003). Doses of 10—20 mg/kg of GHB typically... 

Hill, G. E. 1994. Geographic variation in male ornamentation and female mate preference in the house finch A comparative test of models of sexual selection. Behav. Ecol. 5 64-73. 

Contrary to the structure similarity of the pheromones secreted by taxonomical related moths, some differences are necessary for their sexual communication systems to play an important role in their reproductive isolation. In addition to further modifications of the various structures, diversity of the lepidopteran sex pheromones is generated by blending multiple components. Innumerable pheromone blends are based not only on combinations of different components but also on variations in the mixing ratio. A pioneer study with Adoxophyes spp. (Tortricidae Tortricinae) had already proposed this concept in the early 1970s. While the smaller tea tortrix (A. honmai) and the Japanese summerfruit tortrix (A. oranafasciata) had been considered to be variant strains with different host preferences in the same species, Tamaki et al. found that females of the former pest insect in the tea garden secreted Z9-14 OAc and Zll-14 OAc in a ratio of 7 4 but females of the latter defoliator of apple trees secreted them in a ratio of 13 4 [127,128]. Furthermore, two other components (Ell-14 OAc and MelO-12 OAc) were subsequently identified from the former species [129]. 

LeMaster, M.P and Mason, R.T. (2002) Variation in a female sexual attractiveness pheromone controls male mate choice in garter snakes. J. Chem. Ecol. 28, 1269-1285. 

Perhaps the best evidence for wide variation in humans in the production of pituitary gonadotrophins is the existence side by side, in the human family, of sexual precocity and exaggerated sex development and activity on the one hand, and sexual impotence and... 

Salamon, M. (1995). Seasonal, sexual and dietary induced variations in the sternal scent secretion in the brushtail possum Trichosurus vulpecula). In Chemical Signals in Vertebrates, vol. 7, ed. R. Apfelbach, D. Miiller-Schwarze, K. Reutter, and E. Weiler, pp. 211-222. Oxford Elsevier/Pergamon. 

Eating foods rich in protein like red meat will slightly increase creatinine levels. There is no significant variation between vegatarians and armavors, so the effect protein has is little. Sexual activity also raises creatinine levels. I doubt sexual activity influences creatinine level with much significance. However, a vegetarian that does not have much sex should be concerned. 

Fisher, A. (1962) Effects of stimulus variation on sexual satiation in the male rat1, Journal of Comparative and Physiological Psychology 55, 614-20,... 

In some species, male variation in response to component ratio offset from the natural blend is somewhat modulated by ambient temperature (Linn et al, 1988). The response specificity of G. molesta and P. gossypiella to off-ratios of pheromone acetate components in a wind tunnel assay was narrower at 20 °C than at 26 °C. In the field, sexual activity in both species occurs at both of these temperatures, depending on time of year. Some field evidence of this phenomenon with P gossypiella appears in the distribution of catch in traps baited with a range of ratios measured at various times of the flight season. Flint et al. (1977) found an evidently narrower response breadth early in the season (when temperatures were cool) compared with late-season responses. In the omnivorous leafroller Platynota stultana, the optimum ratio of its two components for attraction seems to shift with temperature in the... 

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