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In Sex-Changing Fish,Male-Typical Sexual Behavior Associated With Elevated Expression Of Male Sex Hormone Receptors In Muscles
Sex-Changing Fish Male-Typical Sexual Behavior Male Sex Hormone Receptors Muscles
2017/7/21
Sex-changing fish exhibit differences in androgen receptor (AR) expression in muscles that are highly sensitive to androgens (male sex hormones) and essential for male courtship behavior, according to...
Actitudes y experiencia sexual en mujeres jóvenes Attitudes and sexual experience in young women
mujeres jóvenes Attitudes sexual experience
2015/7/30
The Hudson et al Test (1983) has demonstrated an adequate interna1 consistency (Alpha = 0.81)
as well as its validity for measuring sexual attitudes. This is due to the possibility of finding - by
m...
Risky Sexual Behaviour, Sexually Transmitted Infections, HIV/AIDS and Health Promotion among Students in the University of Douala
Sexually Transmitted Infections HIV
2015/7/21
There are about 9,335 students in the University of Douala, 6,686 males and 3,832 females with a mean age of 20 years. Knowledge of the transmission of AIDS is high as indicated by 95% of the students...
Biologists Link Sexual Selection and Placenta Formation（图）
The placenta. Fish The peacock. Mammals Organs Out of nothing guppy
2014/7/18
RIVERSIDE, Calif. — Sexual selection refers to species’ selection for traits that are attractive to the opposite sex. This special type of natural selection enhances opportunities to mate, the tail of...
Promoting Young People’s Sexual and Reproductive Health
Reproductive Health Young People’s Sexual
2014/3/27
Association for Sexual and Reproductive Health XY (Association XY) has built on its successful youth-friendly model and has changed the lives of young people throughout the country, including the capi...
Family Health Options Kenya: Model of Care for Integration of HIV and AIDS Services within a Sexual and Reproductive Health Care Setting
HIV and AIDS Women's health HIV
2014/3/28
Read about how people living with HIV in urban slums in Kenya are benefiting from life-saving treatment provided by the Kenyan Member Association, Family Health Options Kenya (FHOK), and how many are ...
Voluntary Counselling and Testing: a gateway to linking HIV and sexual and reproductive health
HIV AIDS
2014/3/28
he involvement of more non-governmental and community based organizations in the delivery of HIV counselling and testing services is critical to increasing access to these services. This publication a...
Ecological speciation in a cyclic parthenogen: Sexual capability of experimental hybrids betweenDaphnia pulexandDaphnia pulicaria
Ecological speciation Sexual capability experimental hybrids between Daphnia pulex and Daphnia pulicaria
2014/4/17
Daphnia pulexandDaphnia pulicariaare cyclically parthenogenetic crustaceans that are distributed widelyin North American freshwaters. Hybrids ofD. pulexandD. pulicariaare common in the wild, where pop...
IPPF Charter on Sexual and Reproductive Rights Guidelines
Sexual rights Reproductive rights
2014/3/28
Sexual and reproductive Rights are human rights. The right to sexual and reproductive health implies that people are able to enjoy a mutually satisfying and safe relationship, free from coercion or vi...
The effect of queen removal on sexual production in the bumble bee, Bombus terrestris (Hymenoptera: Apidae)
Bumble bee Bombus terrestris male and queen production queenlessness
2010/3/25
We analyzed the effects of queen removal on male and queen production in the bumble bee, Bombus terrestris. In total, 43 Bombus terrestris colonies were reared under standard laboratory rearing condit...
Programme guidance on Counselling for STI/HIV prevention in sexual and reproductive health settings
HIV and AIDS Programme guidance STI/HIV
2014/3/28
This document was created by a group of experienced counsellors from the IPPF Central Office and Africa, ESEAOR and Arab World regional offices; the Family Planning Associations of South Africa, India...
《The Descent of Man, and Selection in Relation to Sex》Chapter XX Secondary Sexual Characters of man (Continued)
The Descent of Man, and Selection in Relation to Sex 人类由来与性选择 查尔斯·达尔文 Charles Darwin
2008/12/22
WE have seen in the last chapter that with all barbarous races
ornaments, dress, and external appearance are highly valued; and
that the men judge of the beauty of their women by widely different
...
《The Descent of Man, and Selection in Relation to Sex》Chapter XIX Secondary Sexual Characters of man
The Descent of Man, and Selection in Relation to Sex 人类由来与性选择 查尔斯·达尔文 Charles Darwin
2008/12/22
WITH mankind the differences between the sexes are greater than in
most of the Quadrumana, but not so great as in some, for instance, the
mandrill. Man on an average is considerably taller, heavie...
《The Descent of Man, and Selection in Relation to Sex》Chapter XVIII Secondary Sexual Characters of Mammals, continued
The Descent of Man, and Selection in Relation to Sex 人类由来与性选择 查尔斯·达尔文 Charles Darwin
2008/12/22
QUADRUPEDS use their voices for various purposes, as a signal of
danger, as a call from one member of a troop to another, or from the
mother to her lost offspring, or from the latter for protectio...
《The Descent of Man, and Selection in Relation to Sex》Chapter XVII Secondary Sexual Characters of Mammals
The Descent of Man, and Selection in Relation to Sex 人类由来与性选择 查尔斯·达尔文 Charles Darwin
2008/12/22
WITH mammals the male appears to win the female much more through
the law of battle than through the display of his charms. The most
timid animals, not provided with any special weapons for fighti...