Associations Between Early Life Stress, Child Maltreatment, and Pubertal Development Among Girls in Foster Care

The present study investigated pubertal development in girls with maltreatment histories (N = 100), assessed at four time points over 2 years beginning in the spring of their final year of elementary school. This sample is unique, in that participants were subject to an unusual level of environmental risk early in life and resided in foster care at the start of the study. Analyses replicated the previously established association between sexual abuse and earlier onset of maturation and earlier age at menarche. Physical abuse was related to a more rapid tempo of pubertal development across the period assessed. These results strengthen previous investigations of childhood maltreatment and puberty, highlighting the complexity and specificity of early life experiences for later development.     

Do other-regarding preferences change with age? Evidence from a gift exchange experiment

A series of laboratory experiments investigate potential differences in other-regarding behavior by age of participant. Specifically, a gift exchange experiment is conducted with eighth graders, high school seniors, undergraduates, and working adults, all with similar observable demographic characteristics. All groups exhibit significant levels of gift exchange. Eighth graders exhibit significantly less gift exchange than other groups whereas the responses of other groups do not appear to differ. The findings indicate that other-regarding behavior is present, but still developing in adolescents and undergraduate subjects in gift exchange experiments exhibit similar behavior to adults with similar observable characteristics.     

Sexual behavior and responsiveness to sexual stimuli following laboratory‐induced sexual arousal

Sexual excitement can be seen as an action disposition. In this study sexual arousal was expected to generate sexual action and to increase interest and responsiveness to sexual stimuli. In two experiments, male and female participants were exposed to a neutral or a sexual film. We measured genital and subjective responses to the film, and sexual behavior following the laboratory visit. In Experiment 2, film exposure was followed by a task in which participants rated the sexual arousability of neutral and sexual pictures. Rating time of the sexual pictures served as an index for sexual interest. Responsiveness to the sexual pictures was measured by modulation of spinal tendinous (T) reflexes. Sexual activity, but not sexual desire, was higher for participants in the sexual film condition than for participants in the neutral condition. Sexual interest and responsiveness to still pictures were not higher for participants in the sexual film condition than for those in the neutral film condition. In addition, men who saw the neutral film showed a greater responsiveness to still pictures than men who saw the sexual film. The results support the view of sexual arousal as an emotional state generating action tendencies and actual sexual behavior.     

Productivity and Recognition of Sociology Departments

Abstract

Research has often cited physical attractiveness as a desired value in mate selection but has neglected a systematic assessment of its influence on actual dating outcomes. The present paper explores the effect of physical attractiveness on the dating outcomes of 100 female video daters. A logistic regression analysis finds that a one unit change in ectomorphic body type increases the odds of a female finding a partner by 13.6 percent. Physical attractiveness overshadowed all other desired mating values in predicting success at finding a mate.     

SFX Miscellaneous Free Ejournals Target: Usage Survey Among the SFX Community

The number of free or open access articles is increasing rapidly, and their retrieval with library indexes and OpenURL link resolvers has been a challenge. In June 2014, the SFX MISCELLANEOUS_FREE_EJOURNALS target contained more than 24,000 portfolios of all kinds. The SFX KnowledgeBase Advisory Board (KBAB) carried out an international survey to get an overview of the usage of this target by the SFX community and to precisely identify what could be done to improve it. The target is widely used among the community. However, many respondents complained about three major problems: (a) incorrect links, (b) full texts actually not free, and (c) incorrect or missing thresholds (years and volumes information).     

Estimation of Acute Toxicity by Fitting a Dose-Time-Response Surface

In acute toxicity testing, organisms are continuously exposed to progressively increasing concentrations of a chemical and deaths of test organisms are recorded at several selected times. The results of the test are traditionally summarized by a dose-response curve, and the time course of effect is usually ignored for lack of a suitable model. A model which integrates the combined effects of dose and exposure duration on response is derived from the biological mechanisms of aquatic toxicity, and a statistically efficient approach for estimating acute toxicity by fitting the proposed model is developed in this paper. The proposed procedure has been computerized as software and a typical data set is used to illustrate the theory and procedure. The new statistical technique is also tested by a data base of a variety of chemical and fish species.     

Mate Availability,Family Formation,and Family Structure Among Black Americans in Nonmetropolitan Louisiana 1970–19801

Abstract This paper assesses the effects of the community sex ratio on black family formation and family structure in nonmetropolitan parishes in Louisiana. As predicted, the sex ratio is found to have strong positive effects on marriage prevalence for black women, the prevalence of husband and wife families for black families, and the percentage of black children residing in husband and wife families and strong negative effects on the nonmarital fertility ratio for black women. Thus, we conclude that the sex ratio hypothesis should be given greater prominence in discussions of changes in black family structure and that sex ratio effects should be taken into account when framing policies aimed at ameliorating social problems attendant to high relative incidence of nonmarital births and single-parent, female-headed families with young children (e.g., poverty). We also note that, while the literature overwhelmingly concentrates on black family structure in urban areas, changes in the black family are equally pronounced in nonmetropolitan areas suggesting that explanations emphasizing the dynamics of urban ghettos may be too narrow.     

Comparing topography-based verbal behavior with stimulus selection-based verbal behavior

Michael (1985) distinguished between two types of verbal behavior: topography-based and stimulus selection-based verbal behavior. The current research was designed to empirically examine these two types of verbal behavior while addressing the frequently debated question, Which augmentative communication system should be used with the nonverbal developmentally disabled person? Four mentally retarded adults served as subjects. Each subject was taught to tact an object by either pointing to its corresponding symbol (selection-based verbal behavior), or making the corresponding sign (topography-based verbal behavior). They were then taught an intraverbal relation, and were tested for the emergence of stimulus equivalence relations. The results showed that signed responses were acquired more readily than pointing responses as measured by the acquisition of tacts and intraverbals, and the formation of equivalence classes. These results support Michael’s (1985) analysis, and have important implications for the design of language intervention programs for the developmentally disabled.