The factors influencing transactional sex among
... As shown in Table 3, the proportion of all sexually active women engaging in transactional sex varies from less than 2 percent in Niger to 11 percent in Zambia. In all but one country (Niger), the proportions reporting engagement in transactional sex are highest in the 15–19 age group. Higher propor ...
... As shown in Table 3, the proportion of all sexually active women engaging in transactional sex varies from less than 2 percent in Niger to 11 percent in Zambia. In all but one country (Niger), the proportions reporting engagement in transactional sex are highest in the 15–19 age group. Higher propor ...
Ecology, sexual selection and speciation
... mediated by the extent of similarity between individuals with respect to traits that are expressed in both sexes (e.g. body size). Alternatively, non-random mating can be based on a preference (often expressed in females) and a trait (often expressed in males) that are (initially) inherited independ ...
... mediated by the extent of similarity between individuals with respect to traits that are expressed in both sexes (e.g. body size). Alternatively, non-random mating can be based on a preference (often expressed in females) and a trait (often expressed in males) that are (initially) inherited independ ...
Conditioning and Sexual Behavior: A Review
... sexual arousal, elicit sexual excitement, or initiate copulatory interactions. An animal’s ability to respond appropriately to such stimuli requires not only innate mechanisms, but also a great deal of flexibility in order to learn what stimuli are useful predictors of copulatory success or failure. ...
... sexual arousal, elicit sexual excitement, or initiate copulatory interactions. An animal’s ability to respond appropriately to such stimuli requires not only innate mechanisms, but also a great deal of flexibility in order to learn what stimuli are useful predictors of copulatory success or failure. ...
Sexual Attraction to Clients: The Human Therapist and
... the subsample of psychiatrists reported engaging in erotic contact with clients, with 5% reporting sexual intercourse. Two initial national studies of therapist-client sex, both limiting their sample to psychologists. Holroyd and Brodsky (1977) found that 7.7% of their sample of psychologists conduc ...
... the subsample of psychiatrists reported engaging in erotic contact with clients, with 5% reporting sexual intercourse. Two initial national studies of therapist-client sex, both limiting their sample to psychologists. Holroyd and Brodsky (1977) found that 7.7% of their sample of psychologists conduc ...
Combining the Methods of Differential and Experimental Psychology
... The primary phenomena of interest are not merely quantitative small-magnitude sex differences such as male versus female mean IQ scores, but rather qualitative interactions between sex and various psychological variables categorized as sexually dimorphic effects. Sexual dimorphisms can be investigat ...
... The primary phenomena of interest are not merely quantitative small-magnitude sex differences such as male versus female mean IQ scores, but rather qualitative interactions between sex and various psychological variables categorized as sexually dimorphic effects. Sexual dimorphisms can be investigat ...
Sex and Stereotyping in Sin City: A Content Analysis of Las Vegas
... persona” (Engstrom, 2007). The sexual imagery used by the casinos and entertainment industry utilizes women’s bodies as attractions and for advertising the resort style city. According to Goodwin (2002), the female body shaped the city’s identity. It has even been said that the city was built on th ...
... persona” (Engstrom, 2007). The sexual imagery used by the casinos and entertainment industry utilizes women’s bodies as attractions and for advertising the resort style city. According to Goodwin (2002), the female body shaped the city’s identity. It has even been said that the city was built on th ...
Modelling the evolution and consequences of mate choice
... are not so straightforward (for a list of examples and references, see Hurst, 1995). Andersson (1994) calls it “the combination of genetic material from two parents in the progeny”, and notes that it therefore does not require two sexes. However, this also runs into difficulties - what of hermaphrod ...
... are not so straightforward (for a list of examples and references, see Hurst, 1995). Andersson (1994) calls it “the combination of genetic material from two parents in the progeny”, and notes that it therefore does not require two sexes. However, this also runs into difficulties - what of hermaphrod ...
Periodic Abstinence: Definition, Motivation and Research
... lowering of the cervix to reach into the seminal pool, thereby rendering greatest potential for sperm migration if the fertile woman is supine and reaching orgasm at or shortly after her husband's orgasmic ejaculation. This physical activity proceeds in a natural progression which has been separated ...
... lowering of the cervix to reach into the seminal pool, thereby rendering greatest potential for sperm migration if the fertile woman is supine and reaching orgasm at or shortly after her husband's orgasmic ejaculation. This physical activity proceeds in a natural progression which has been separated ...
6.ICR.3.2 - Summarize the relationship between conception and the
... • A female’s first menstruation is called menarche. • She will have had earlier pubertal developments such as pubic hair and the beginning of breast development. • Menarche usually occurs between the ages of 11 - 15. ...
... • A female’s first menstruation is called menarche. • She will have had earlier pubertal developments such as pubic hair and the beginning of breast development. • Menarche usually occurs between the ages of 11 - 15. ...
An evolutionary behaviorist - Portsmouth Research Portal
... behavior has low potential costs compared with great potential reproductive benefits. This is why men are calibrated to over-perceive sexual interest on the part of women (Perilloux, Easton, & Buss, 2012). For the same reason, we should expect men to experience orgasm in a variety of conditions, eve ...
... behavior has low potential costs compared with great potential reproductive benefits. This is why men are calibrated to over-perceive sexual interest on the part of women (Perilloux, Easton, & Buss, 2012). For the same reason, we should expect men to experience orgasm in a variety of conditions, eve ...
CHARACTERISTICS OF THE MALE GAZER
... an individual must be self-aware that they participate in these gaze actions. Individuals who are unaware of their behavior when (and if) they are gazing at a woman’s body may find it difficult to form an opinion on the positive or negative value of the very act of gazing. If individual men personal ...
... an individual must be self-aware that they participate in these gaze actions. Individuals who are unaware of their behavior when (and if) they are gazing at a woman’s body may find it difficult to form an opinion on the positive or negative value of the very act of gazing. If individual men personal ...
ADOLESCENT AMBIGUITIES IN AMERICAN PIE
... tend to reproduce inequitable social relations around sexuality (Brunner, 1992; Fine, 1992; Lamb, 1997; McLaren, 1992). Many of these limitations stem from what Morris (1997) calls the “utilitarianmissionary” orientation of these programs. The utilitarian aspect of these programs refers to their alm ...
... tend to reproduce inequitable social relations around sexuality (Brunner, 1992; Fine, 1992; Lamb, 1997; McLaren, 1992). Many of these limitations stem from what Morris (1997) calls the “utilitarianmissionary” orientation of these programs. The utilitarian aspect of these programs refers to their alm ...
The role of sex chromosomes in sexual dimorphism
... 1988). Similarly, in female heterogametic systems, female mating preference genes in a moth were identified on the Z chromosome (Iyengar et al., 2002), and female mate preference and male plumage traits have been linked to the flycatcher Z chromosome (Saetre et al., 2003; Saether et al., 2007). The ...
... 1988). Similarly, in female heterogametic systems, female mating preference genes in a moth were identified on the Z chromosome (Iyengar et al., 2002), and female mate preference and male plumage traits have been linked to the flycatcher Z chromosome (Saetre et al., 2003; Saether et al., 2007). The ...
Genetic Correlations with Floral Display Lead to Sexual Dimorphism
... the sexes are thought to arise at least initially from sexual selection, which acts through differences in reproductive success caused by competition for mates (Darwin 1871). Sexual selection is usually considered distinct from viability selection because it operates specifically through variation i ...
... the sexes are thought to arise at least initially from sexual selection, which acts through differences in reproductive success caused by competition for mates (Darwin 1871). Sexual selection is usually considered distinct from viability selection because it operates specifically through variation i ...
Natural Testosterone Boosting Foods
... Testosterone is the main male sex hormone. This hormone controls the sexual activities in men. It is the main hormone which influences masculine features like muscle bulk, facial hair, libido and sperm production. Besides, the hormone has other vital activities too. The basic chemical composition o ...
... Testosterone is the main male sex hormone. This hormone controls the sexual activities in men. It is the main hormone which influences masculine features like muscle bulk, facial hair, libido and sperm production. Besides, the hormone has other vital activities too. The basic chemical composition o ...
A Study of the Second Digit to Forth Digit Ratio targeting Taekwondo
... Keywords: Correlation, Digit Ratio, Sexual Dimorphism, Statistical Analysis, Taekwondo ...
... Keywords: Correlation, Digit Ratio, Sexual Dimorphism, Statistical Analysis, Taekwondo ...
Reprint
... coevolution may obscure the conflict itself. Second, competing models of inter-sexual coevolution may yield similar population patterns near equilibria. Third, a variety of evolutionary forces underlying competing models may be acting simultaneously near equilibria. One main conclusion is that studi ...
... coevolution may obscure the conflict itself. Second, competing models of inter-sexual coevolution may yield similar population patterns near equilibria. Third, a variety of evolutionary forces underlying competing models may be acting simultaneously near equilibria. One main conclusion is that studi ...
Does tusker`s attacks on female elephants are indicating towards
... his urine. Dribbling of urine from extended penis is also one of the characteristic features of musth. It is also said that the level of testosterone is enhanced in the blood, which governs the real transformation during musth, which also strengthen the successful reproduction. At several occasions, ...
... his urine. Dribbling of urine from extended penis is also one of the characteristic features of musth. It is also said that the level of testosterone is enhanced in the blood, which governs the real transformation during musth, which also strengthen the successful reproduction. At several occasions, ...
Repeatability: Its role in evolutionary studies of mating behavior
... repeatability and heritability show that low repeatability cannot accompany high heritability, unless small sample sizes have resulted in erroneous estimates. Low repeatability puts a low ceiling on heritability. A knowledge of repeatability allows one to estimate the sample size that will be necess ...
... repeatability and heritability show that low repeatability cannot accompany high heritability, unless small sample sizes have resulted in erroneous estimates. Low repeatability puts a low ceiling on heritability. A knowledge of repeatability allows one to estimate the sample size that will be necess ...
chapter 1 - WordPress.com
... objectives of this study. Chapter two consists of a literature review in which the themes mentioned in the introduction above are addressed in further detail and additional relevant concepts are explored. Section one of chapter two discusses natural selection versus sexual selection and the relation ...
... objectives of this study. Chapter two consists of a literature review in which the themes mentioned in the introduction above are addressed in further detail and additional relevant concepts are explored. Section one of chapter two discusses natural selection versus sexual selection and the relation ...
Erotic Capital - Catherine Hakim
... element. Their simple and elegant theory states that physical attractiveness confers status. It is a valued commodity, which is in short supply in any society, and is therefore a luxury good. They review a large body of empirical research evidence showing that beauty confers substantial concrete ben ...
... element. Their simple and elegant theory states that physical attractiveness confers status. It is a valued commodity, which is in short supply in any society, and is therefore a luxury good. They review a large body of empirical research evidence showing that beauty confers substantial concrete ben ...
The effect of sex on the mean and variance of fitness in facultatively
... Production of sexually and asexually derived genotypes and fitness assay Ideally, one would isolate the sexually and asexually derived offspring from the same individuals (Kelley et al., 1988; Lynch & Deng, 1994; Pfrender & Lynch, 2000). This is not possible with rotifers. Instead, we took large ran ...
... Production of sexually and asexually derived genotypes and fitness assay Ideally, one would isolate the sexually and asexually derived offspring from the same individuals (Kelley et al., 1988; Lynch & Deng, 1994; Pfrender & Lynch, 2000). This is not possible with rotifers. Instead, we took large ran ...
Anabolic steroids - UKZN`s AIDS programme
... Because they can help the body to form lean muscle, they are sometimes used to treat wasting and weight loss caused by HIV, and doctors sometimes prescribe them to people experiencing fat loss from the limbs because of lipodystrophy. Testosterone supplements are also used to treat low testosterone l ...
... Because they can help the body to form lean muscle, they are sometimes used to treat wasting and weight loss caused by HIV, and doctors sometimes prescribe them to people experiencing fat loss from the limbs because of lipodystrophy. Testosterone supplements are also used to treat low testosterone l ...
Sexual segregation in ungulates: a comparative test of three
... segregation is so widespread not only in ungulates but also in other mammals. Sexual body size dimorphism was proposed as a central factor in the evolution of sexual segregation in ungulates. We tested three hypotheses put forward to explain sexual segregation : the predation-risk, the forage-select ...
... segregation is so widespread not only in ungulates but also in other mammals. Sexual body size dimorphism was proposed as a central factor in the evolution of sexual segregation in ungulates. We tested three hypotheses put forward to explain sexual segregation : the predation-risk, the forage-select ...