Prevalence of classes of risk behaviors for HIV infection in a randomly selected Australian population

A random, geographically stratified sample of over 2,600 individuals aged 16 and over was interviewed in all states and territories of Australia to determine the prevalence of classes of behaviors which are associated with HIV infection. Returns from the anonymous risk behavior questionnaire (60.2% return rate) suggested that the prevalence of both male and female homosexual behavior, and contact with prostitutes, was substantially lower than that estimated by Kinsey et al. (1948, 1953). Data suggest that prevalence of classes of behaviors which place Australian individuals at risk of HIV infection may be lower than American estimates. However, the proliferation of HIV into the Australian homosexual community may be more extensive than previously assumed. The implications of these data for HIV preventive education programs and their targeting are discussed.     

Behavioral and Relational Contexts of Adolescent Desire,Wanting, and Pleasure: Undergraduate Women's Retrospective Accounts

Studies of adolescent female sexuality often focus on coitus to the exclusion of noncoital behaviors, the relational context of sexual interactions, and adolescent women's subjective perceptions of their experiences. In this study, 38 undergraduate women's retrospective accounts of their adolescent heterosexual experiences were examined. Generalized estimating equation models were used to test the relation of diverse heterosexual behaviors and relationship types to participants' subjective perceptions of desire, wanting, and pleasure. Of the sexual behaviors, coitus was the strongest predictor of participants' subjective perceptions. Compared to coitus, erotic touching, manual stimulation, and fellatio were significantly less predictive; there were no differences between coitus and cunnilingus or coitus and kissing. Of the relationships (serious, dating, “friends with benefits” [FWBs], and “hookups”), FWBs was the strongest predictor of participants' desire, wanting, and pleasure; in comparison, hookups were significantly less predictive. These findings offer insight into the sexual behaviors and preferences of young women, as well as distinctions between types of non-romantic sexual relationships.     

CALL FOR PAPERS

In this article historical patterns and recent trends in black migration in the United States are examined. The purpose of the article is two‐fold: (1) to examine historical changes in the volume and rates of migration between the southern region and nonsouthern regions; and (2) to determine the relative impact of migration types on the South's changeover to net in‐migration during the 1975–1980 migration interval.

The findings of this study indicate that the reversal of the historical pattern of net out‐migration of blacks from the southern region occurred two decades after the turnaround for the general population. The southern region changed from sizable net out‐migration for blacks during the period before 1970 to net in‐migration during the 1975–1980 migration interval. The changeover was due to a substantial decrease in the number of both southern‐born and non‐southern‐born blacks leaving the South. There were also increases in the rate of in‐migration into the region among both return migrants and nonsouthern migrants. The single most important factor influencing the turnaround was a decrease in the number of southern‐born blacks migrating out of the region. This finding is contrary to much current speculation about the role of return migrants in influencing the South's changeover to net in‐migration for the black population.     

The Canadian sample for labour force and other population data

An area sample is now being taken quarterly in Canada for labour force and a wide variety of other population data. Since reliable lists of households cannot be obtained without substantial expense the amount of field work is reduced to a minimum by the use of maps which may be thought of as an implicit listing. Random selection with known probabilities is applied in several stages, the overall result being a 1 % sample of the population. The survey data provide not only estimates of unemployment, movement of population, etc., but also give the errors of estimate. During the 3 years of its operation, information has been obtained for government and public use on housing conditions, rents, farm fires and accidents, sickness, fish consumption and many other matters.     

Family policy and couples’ labour supply: an empirical assessment

This paper empirically examines the effect on couples’ labour supply of a universal at-birth cash benefit and a government subsidy equal to 50% of child care expenditure for working parents. The method is first to simulate the effects on labour supply over the adult lifecycle using a calibrated dynamic utility maximisation model of a representative couple, using data drawn from waves of a longitudinal survey for Australia. Then using the same data, the effect of family benefits and the child care subsidy on couples’ hours worked is econometrically estimated. The 50% child care subsidy was found to increase the average couple’s labour supply by the equivalent of 0.75 to 1 h per week whilst children are of pre-school age, and less on average over the couple’s working lifetime. The cash benefit changes were found to have a negligible effect on labour supply.     

A Service Provider's Elicitation of Its Customers’ Demand Distributions by a Price Mechanism

In a service environment a service provider needs to determine the amount and kinds of capacity to meet customers’ needs over many periods. To make good decisions, she needs to know the probability distribution of her customers’ demand in each period. We study a situation in which customers’ demand for a given service is random in each period, but inelastic, or modeled well by this assumption, and cannot be delayed to the next period. This article presents a mechanism that allows a service provider to learn the distribution of a customer's demand by offering him a set of contracts through which he can partially prepay for future service for a reduced cost for units of service based on anticipated needs. We describe the form of a set of contracts that will cause the customer to reveal his demand distribution as he minimizes his expected costs. To justify the effort of organizing and offering contracts, we present an application that demonstrates the cost savings to the service provider with better capacity planning using the truthfully elicited distribution.     

Sequencing and Scheduling Appointments with Potential Call‐In Patients

This paper studies appointment scheduling for a combination of routine patients who book well in advance and last‐minute patients who call for an appointment later that same day. We determine when these same‐day patients should be scheduled throughout the day, and how the prospect of their arrivals affects the appointment times of the routine patients. By formulating the problem as a stochastic linear program, we are able to incorporate random and heterogeneous service times and no‐show rates, ancillary physician tasks, and appointment delay costs for same‐day patients who prefer to see the doctor as early as possible. We find that the optimal patient sequence is quite sensitive to the no‐show probabilities and the expected number of same‐day patients. We also develop two simple heuristic solutions to this combinatorial sequencing problem.     

A National Survey on Depression,Internalized Homophobia,College Religiosity,and Climate of Acceptance on College Campuses for Sexual Minority Adults

ABSTRACT

Sexual minority persons have an increased risk for negative mental health outcomes in adulthood. This seems to largely be due to experiences of stigma in social settings. This study sought to understand the relationship between attending a religiously conservative college, internalized homophobia (a measure of sexual stigma), and depressive symptoms for sexual minority adults. Sexual minority adult participants (n = 384) from across the U.S. were recruited and completed a Web-based, anonymous survey. A mediation model predicting depression through college religious conservatism, college acceptance of sexual minority identities, and internalized homophobia was tested using path analysis. Results revealed an indirect effect of increased religious conservatism of a college predicted higher depression through lower college acceptance and higher internalized homophobia. Implications for the mental health of sexual minority adults and future research are examined.     

Open and closed birth intervals for once-married spouse-present white women

Using the 1970 1/1,000 Public Use Sample of the U.S. population, the relationships of the closed and open birth intervals with parity and mother's age, with parity and marital duration, and with children ever born/marital duration and mother's age are analyzed. These findings both replicate and expand on Srinivasan's earlier research on the open interval. The open interval is more sensitive as an index of marital fertility when marital duration and parity are controlled than when mother's age and parity are controlled.