A Trivariate Distribution for the Height,Weight, and Fat of Adult Men*

Using exploratory data analysis, probability plots, scatterplots, and computer animations to rotate and visualize the data, we fit a trivariate Normal distribution to data for the height, the natural logarithm of body weight, and the body fat for 646 men between the ages of 50 and 80 years as reported by the medical staff of the U.S. Veterans Administration's “Normative Aging Study” in Boston, MA. Although these data do not include any children, women, or young men, the measurements represent the best data that we could find through a 4-year search. We believe that these data are well measured and reliable for men in the specified age range and that these data reveal an interesting statistical pattern for use in probabilistic PBPK models.     

The effects of mother-son incest

Parsons has popularized the myth that mother-son incest is the most damaging form of incest. A review of sixteen cases casts doubts on this belief. It was found that responses to this type of incest are multi-dimensional, representing an extraordinary range of behavior not foreseen by Parsons. This leads to the conclusion that motherson incest does not trigger some innate biological response, but that the effects are more directly related to the symbolic meanings attributed to this act by the participants.Leslie Margolin received a Ph.D. in Sociology from the University of Nebraska-Lincoln. He is currently a Visiting Assistant Professor in the Department of Human Development and Family Studies at Cornell University in Ithaca, New York.Address reprint requests to Leslie Margolin, Visiting Assistant Professor, Department of Human Development and Family Studies, Cornell University, Ithaca, NY 14853.     

Contributions of a babyface and a childlike voice to impressions of moving and talking faces

Contributions of a babyface and a childlike voice to impressions of moving and talking faces     

Perceptions concerning research integrity and the practice of data audit in the biotechnology industry

A survey was conducted in order to evaluate the responses of biotechnology executives concerning their perceptions of the frequency of questionable R & D studies performed in their companies and to assess the extent to which their companies voluntarily conducted data audits. Data audit was found to be commonly practiced on a voluntary basis by biotechnology companies, in contrast to its almost lack of practice by universities. However, public companies were more likely to practice data auditing than privately held companies. Moreover, the likelihood that managers suspected or detected questionable studies in their companies was significantly increased if the company practiced data auditing.     

Differential Frontal Cortex Activation Before Anticipatory and Reactive Saccades in Infants

Neural correlates of anticipatory and reactive saccades were studied in 4‐month‐old infants by recording high‐density event‐related potentials. Infants were presented with a fixed sequence of stimulus presentation to which they rapidly showed anticipatory saccades, as well as continuing with some reactive (stimulus‐driven) saccades. As in a previous study, no clear evidence was found for adultlike, saccade‐related potentials, although some presaccadic differences between reactive and anticipatory saccades were observed. Infants also showed different stimulus offset‐related effects preceding the 2 types of trials with a right‐frontal positivity when an anticipatory look follows, but only left‐frontal positivity when a reactive saccade follows.     

Gender inequities in technology in developing nations: Females and computers in traditional cultures

The acceptance of innovations, including computer technology in traditional non-Western societies, has generally been a difficult struggle, especially with females, when these innovations challenge or imply changes to long-held customary designations of functions along gender lines. The introduction of computers in traditional cultures has customarily met with such apprehension and reservation. When they have been accepted, computers have solely been the domain of males, a mentality rooted in the belief that anything mechanical is male, and also in the myths concerning the technological competence of females. An understanding of computer technology and its socio-cultural, political and economic consequences in developing, traditional user nations may shed some light on impediments for females as they venture into this traditional, cultural, gender-biased world of technology.     

Continuity in Children's Relations with Peers

Social competence with peers of 55 (27 girls) children was examined from ages one to nine. In the toddler and preschool periods, social competence with peers was observed and rated by independent observers and rated by teachers. Teachers reported on children's social competence with peers at age nine. Children who engaged in more complex play with peers as toddlers were more prosocial, engaged in complex play, were less withdrawn as preschoolers, and were less aggressive and withdrawn as nine-year-olds. Children who were more aggressive and withdrawn as preschoolers were more aggressive as nine-year-olds.