Does sex age you?

The evolution of aging and longevity has typically been considered to be a resolution of the conflicting demands on an organism to grow, reproduce, and survive. When social or environmental factors change the opportunities for reproduction in a way that affects differently aged individuals, there will be an evolutionary response in the schedule of senescence. This means that social dynamics can have an important effect on aging. A recent study by Berec and Boukal has shown that the dynamics of mating and divorce can also affect observed life spans through their effect on population dynamics. If females cannot find and maintain mating pairs for long enough to replace themselves, the population will become extinct. This puts a lower limit on the levels of longevity that will be observed in nature.     

Is risky sex rational?

Consideration of a simple model of sexual decision‐making suggests that many individuals who engage in risky sexual practices do so for “rational” reasons. Within a framework of subjective values and perceptions, risky sex may be rational in the sense that the benefits derived from sexual expression outweigh the threat of loss from AIDS. One implication of this conceptualization is that in order to understand risky behavior, primary consideration must be accorded the perceptions, attitudes, and desires of the individual.     

给sex放假,让爱上班

丽丽和丈夫曾有过无数激情高涨的时刻,然而结婚不过三年,丈夫看她的眼神就没有了火焰。他仍然关心她,一如既往地对待她,只是温和得像一杯烧不开的白开水。丽丽觉得自己还有激情,她需要同样     

Social workers’ opportunities to work with safer sex

The purpose of this study is to increase knowledge about social workers’ opportunities to work with safer sex among at-risk adolescents and young adults. To investigate this issue, a survey has been sent to outreach work and non-institutional offices whose work focuses on alcohol and drugs to some extent. The survey was sent to 89 workplaces distributed throughout 33 municipalities in the region of Skåne in southern Sweden. Altogether 229 responses were collected, a response rate of 60.1%. The study shows that social workers have limited opportunities to work with safer sex issues and that the organizational resources to support this work are weak. Michael Lipsky’s theory of street-level bureaucrats was applied to the data, with the analysis indicating that knowledge and organizational resources are key to enabling work with safer sex. It is also important that the personnel are interested in the subject and that they feel comfortable working with safer sex. The factors found to have the strongest direct effect on the personnel’s work with safer sex are: having the possibility to set aside time to work with safer sex, experiencing that safer sex is discussed at the workplace and being personally interested in the subject.     

Sources of sex information and premarital sexual behavior∗

Parents and educators have been concerned with the impact of sex education courses and sources of sex information on premarital sexual behavior. This study investigates different sources of sex information, including parents, peers, and others, and how they influence premarital sexual behavior among American college students. This exploratory research is based on the secondary analysis of cross‐sectional data from a national probability sample of 1,177 college students interviewed about their sexual behavior and sexual socialization experiences. Cross‐tabulations between several sources of sex information and a composite index of incidence and prevalence of premarital socio‐sexual involvement are presented. Among females, sexual behavior was influenced in a negative direction by their mothers and in a positive direction by male friends and independent reading. Among males, sexual behavior was influenced in a negative direction by clergymen and in a positive direction by male and female friends and independent reading. Due to the availability of cross‐sectional data only, the need for cautious interpretation is emphasized.     

What makes sex offenders confess? An exploratory study

This study examines correlates of offender confession in criminal sexual conduct cases involving children. The cases consist of all closed court files (N=318), spanning the last 10 years from a single jurisdiction. This jurisdiction has a community-wide protocol for handling child sexual abuse cases, a high rate of charging (69%), a high rate of confession (64%), and high rates of pleas to sex crimes (77%). To determine what factors were associated with suspect confession before adjudication, we examined characteristics of the suspect, the child, the abuse, and the system using bi-variate and multi-variate analysis. The following four variables are associated with suspect confession: (1) having the state police conducting the law enforcement part of the investigation, (2) more serious abuse, (3) younger age of the suspect, and (4) having a court appointed (as opposed to a retained) attorney.     

Co‐marital sex and the sexual freedom movement∗

Schachter's (1964) cognitive labeling model of emotions was used to make predictions about the impact of presentation order of explicit sexual stimuli and order of reporting reactions to these stimuli on sexual and affective responses. Subjects (27 males, 23 females) viewed a series of sexually explicit slides in story‐line sequence, in reversed story‐line sequence, or in a random sequence. In counterbalanced order subjects rated how sexually arousing and disgusting the slides were to themselves. Males, but not females, reported being more disgusted when they rated disgust first than when they rated sexual arousal first. Additionally, males and females who saw the random presentation sequence reported more sexual arousal than those who saw the reversed story‐line sequence. Females also were more aroused by the random sequence them by the story‐line sequence, while males in these conditions did not differ in arousal. These results indicated that Schachter's model of emotions may be useful in explaining how people respond to sexual stimuli.     

Cohort-level sex ratio effects on women’s labor force participation

It follows from a number of theoretical models of marriage that the scarcer women are relative to men, i.e., the higher the sex ratio, the less married women are likely to participate in the labor force. Such sex ratio effects may be stronger among less educated women. These predictions are tested using individual data from Current Population Surveys for four regions of the U.S. (Northeast, Midwest, South and West), and for the U.S. as a whole, covering the period 1965–2005 at 5-year intervals. Within-region sex ratio variation results from variation in cohort size (due principally to large fluctuations in number of births) and limited fluctuations in the difference between male and female age at marriage. As hypothesized, we find that sex ratios are inversely related to women’s labor force participation, reflecting that ceteris paribus women born in years of peak baby-boom are more likely to be in the labor force than women born in years of peak baby-bust. Additionally, weaker sex ratio effects are found among educated women in two of the four regions of the United States.

Trading sex: voluntary or coerced? The experiences of homeless youth

This study examined the circumstances surrounding a homeless youth's "decision" to trade sex for food, money, shelter, or drugs. Forty homeless youth in 4 Midwestern states participated in individual in-depth qualitative interviews. Interviewers recruited youth both through service agencies and through street outreach. The findings revealed that approximately 1/3 of the sample had some experience with trading sex, whether it was in the form of having traded sex, having been propositioned to trade sex but having refused, or having friends or acquaintances that had traded sex. Young people's reports indicated that they had traded sex for things they deemed necessary in order to survive (i.e., food, shelter, money, or drugs), and that they did not want to trade sex, but did so because they were desperate and lacked alternatives. Additionally, others were coerced, manipulated, or forced to do so; thus indicating that the decision to trade sex is not always voluntary. We discuss the implications of these findings in terms of cumulative effects on youths' later development. Directions for future research among this population are also discussed.     

Why medicalization? Introduction to the special issue on the medicalization of sex

This special issue grows out of the need to bring into focus the historical and sociocultural contextualization of sex to the sexological community. The specific focus is on analyzing how medicalization is affecting many areas of sexual life and discourse, but the larger goal is to help situate sexuality studies in its broadest perspective. Articles will be of general interest to those interested in interdisciplinary scholarship; the specific articles address HIV politics, sex therapy, women's sexual health, sex and aging, the popularization of weak science, and the media's view that sexual exuberance is a central marker of recovery from cancer. Medicalization is a current trend that illuminates the importance of a broader view of sexology.     

Use of medroxyprogesterone acetate in treatment of a deaf‐mute sex offender

Two forms of social pressure—demand for erection and social in‐flunce—were tested on pairs of men viewing either nudes or explicit erotica. To test demand for erection, each man was told that hearing bio‐feedback of a co‐participant's erections might either increase or decrease his own arousal. To test social influence, each man heard bogus feedback of the other's erections, whereas controls heard true biofeedback of their own arousal. Four dependent variables included ratings of the erotica and percentage of erection attained during three trials. For 43 men viewing female nudes, from an average maximum erection of 35% for controls, erections rose to 61% or fell to 23%, depending on high or low feedback from the co‐participant. For 45 men viewing explicit intercourse, erections remained at consistently high levels regardless of feedback manipulations. In contrast to the impact of social influence, demand for erection had limited effect.     

How do sex ratios in China influence marriage decisions and intra-household resource allocation?

This article examines how imbalanced sex ratios influence marriage decisions and household bargaining. Using data from the 1982 Chinese census, the traditional “availability ratio” is modified to reflect the degree to which men tend to marry women from different cohorts. This ratio reflects the average tendency of men to prefer women who are close in age to women who are several years younger than them by weighting cohort sizes using the proportion of people in the population who marry someone born in a different cohort. Given that men generally marry younger women, this ratio varies independently of the size of one’s own birth cohort. Yet, the ratio fluctuates considerably across individuals, as the sizes of birth cohorts in China vary across time and regions. This enables us to examine how variability in such ratios may influence marriage decisions and household bargaining. The findings suggest that women exercise greater bargaining power once married. Results indicate that as women become scarcer in the marriage market, they have healthier sons. Men also delay marriage, and consume less tobacco and alcohol. This paper also highlights how sensitive findings may be to using this modified weighted availability ratio rather than a traditional unweighted availability ratio.     

Are sex differences in nonverbal and verbal behavior generalizable to mentally retarded persons?

Sex differences in three communication behaviors consistently found to be more common among females than males — smiling, gazing at one's partner, and sentence complexity — were examined through analysis of interviews with 78 institutionalized mentally retarded adults. While females were significantly more likely than males to smile or laugh, and tended to use longer, more complex sentences, the commonly observed sex difference in gazing failed to generalize to a retarded sample. These findings clarify limits on the generalizability of sex differences beyond college students and other normal populations.This research was partially supported by a grant to the Texas Tech University Research and Training Center in Mental Retardation from the Rehabilitation Services Administration, Department of Health Education, and Welfare.     

Muscle-power quality: does sex or race affect movement velocity in older adults?

To determine sex and race differences in muscle power per unit of muscle contraction, knee-extensor muscle power normalized for knee-extensor muscle volume was measured in 79 middle-aged and older adults (30 men and 49 women, age range 50-85 years). Results revealed that women displayed a 38% faster peak movement velocity than men and African Americans had a 14% lower peak movement velocity than Whites of a similar age when expressed per unit of involved muscle (p < .001). As expected, men exhibited greater knee-extensor strength and peak power per unit of muscle than women, but women had a faster knee- extension movement velocity per unit of muscle than men at the same relative strength level. Moreover, African Americans had greater knee-extensor muscle volume than Whites but exhibited lower knee-extensor strength and lower movement velocity per unit of muscle when tested at the same relative strength levels.     

The canary of the Constitution: same‐sex equality in the public sphere

Nowhere is the paradox between the ideals of the South African Constitution and lived reality more apparent than in public contestations around gender and sexuality. Gay and lesbian equality has come to occupy a symbolic place as a litmus test of the success of constitutional democracy in South Africa. And yet, because gay and lesbian equality is not widely supported, it is also one of the key moral barometers testing the gap between the Constitution and public opinion. This article looks at a series of public hearings held under the auspices of the National House of Traditional Leaders to gauge public opinion on same‐sex marriages. This is used as a case study to explore how sexuality becomes pivotal in debates about nationhood and belonging.     

Sexual behavior among HIV-positive men who have sex with men: what's in a label?

Relatively little attention has been paid to the use and importance of labels used by men who have sex with men to describe insertive or receptive sexual behavior during intercourse. This study examines sexual self-labels, sexual behavior, HIV transmission risk, and psychological functioning among 205 HIV-seropositive men who have sex with men. The majority of participants (88%) identified as a top, a bottom, or versatile. Tops were more likely to engage in insertive anal intercourse than bottoms, and bottoms were more likely to engage in receptive anal intercourse than tops, with versatiles reporting intermediate rates of both behaviors. Although the results suggest preliminary evidence regarding the predictive utility of self-labels, sexual behaviors of self-label groups were greatly overlapping. Differences were found among self-label groups in gay self-identification, internalized homophobia, sexual sensation seeking, and anxiety. Results suggest an added value in assessing self-labels in addition to asking about sexual behavior.     

Prevalence of unprotected sex and HIV‐antibody testing among gay,lesbian, and bisexual youth

Prevalence of unprotected sex and HIV‐antibody testing were examined in a sample of Southern gay, lesbian, and bisexual youth (n = 117). In addition, a new measure was tested in terms of its ability to distinguish youth who obtain HIV‐antibody testing from those who do not. Data were collected at a conference for these youth, as well as at a Gay and Lesbian Community Center in a Southeastern metropolitan area. Youth reported engaging in a wide range of risk behaviors, yet less than one half had been tested for HIV. Factor analysis was conducted for the new measure, which assessed beliefs about HIV testing in youth, and each factor was significantly different for youth who had been tested compared to those who had not. Gay, lesbian, and bisexual youth were at high risk for HIV infection and were often untested for HIV antibodies.     

Sampling television programs for content analysis of sex on TV: how many episodes are enough?

Content analysis is widely used to analyze sexual themes and messages on television. Although researchers generally use a sampling procedure to identify programs for analysis, there is currently no gold standard for the number of episodes needed to establish a valid, representative sample. This study sought to explore how many episodes of weekly television programs should be examined for an accurate assessment of sexual content present throughout the season. Various sampling strategies were used to select episodes from programs that ran in the 1998-1999 season, and results were compared with data collected from all episodes of these programs to test representativeness. Findings suggest that to provide a representative assessment of sexual content on television programs for behavior-level variables, a random sample of five episodes of weekly television programs is sufficient, while three episodes may be acceptable if variation is minimal. A random sample of seven episodes is needed for character-based analyses.     

Female crack users and their sexual relationships: The role of sex‐for‐crack exchanges

This study challenges the image of female crack users as exchangers, or women who exchange sex for crack. Between June 1997 and February 1999, quantitative interviews were conducted with 150 active female crack users, one half of whom also completed a qualitative interview. Data analysis involved contingency analysis, bivariate logistic regression analysis, and the constant comparison method. Exchangers (n = 65) were younger, and were more likely to have been homeless and to be single than were nonexchangers (n = 85). Exchangers also were more likely to report infidelity and less likely to communicate with their most recent steady partner about the partner's relationship expectations. Sexual behaviors differed by partner type among the exchangers and nonexchangers. These findings provide a comprehensive picture of female crack users. Additionally, the findings indicate the importance of designing interventions that capture the complexities of the women's sexual relationships.