Forecasting Mexico's oil potential

This paper is directed at estimating total producible oil in Mexico. Two specific models are suggested and estimated in a method consistent with the theoretical considerations. The results suggest that approximately 40 billion barrels are ultimately recoverable and producible of which 7.5 billion barrels have been produced through the end of 1980.     

Relations between Theory of Mind and Indirect and Physical Aggression in Kindergarten: Evidence of the Moderating Role of Prosocial Behaviors

The present study examined the association between theory of mind and indirect versus physical aggression, as well as the potential moderating role of prosocial behavior in this context. Participants were 399 twins and singletons drawn from two longitudinal studies in Canada. At five years of age, children completed a theory of mind task and a receptive vocabulary task. A year later, teachers evaluated children's indirect and physical aggression and prosocial behavior. Indirect aggression was significantly and positively associated with theory of mind skills, but only in children with average or low levels of prosocial behavior. Physical aggression was negatively associated with prosocial behavior but not with theory of mind. Each analysis included gender, receptive vocabulary, and the respective other subtype of aggression as control variables. These results did not differ between girls and boys or between twins and singletons. Theoretical and clinical implications of these findings are discussed.     

Self-representations in Early Adolescence: Variations in Sibling Similarity by Sex Composition and Sibling Relationship Qualities

Self-representations play an important role in adolescent development. This study compared self-representations for siblings and explored whether sibling relationship characteristics are associated with similarities or differences in sibling self-concepts. We examined self-representations of 438 adolescent sibling dyads ( M age younger sibling  =  11.6 years, M age older  =  14.3 years), finding that siblings are, on average, similar in their self-representations. This similarity varied, however, depending on sex composition and sibling relationship qualities. Results indicated that sibling modeling, warmth, and conflict were especially influential in predicting sibling resemblance vs. dissimilarity.     

RELAXING ASSUMPTIONS IN THE ONE SAMPLE t-TEST

This paper reviews what is currently known about the behaviour of the t-statistic when one is no longer sampling from a normal distribution. Suppose Y is a batch of data on which the t-test is performed. Briefly then, heavy-tailed components of Y give a light-tailed t , positive correlation among Y gives a heavy-tailed t, and positively skewed components of Y give a negatively skewed t. The emphasis is on understanding why one gets this type of behaviour, although some numerical tables are presented to illustrate the conclusions.     

Managers as Monitors: An Analysis of the Non‐executive Role of Senior Executives in UK Companies

An important aspect of current governance practice is the use of non‐executive directors to monitor the behaviour of company management. This paper examines the extent to which senior executives are utilized as non‐executives in large UK companies. The results suggest that executive directors are not an important source of non‐executive directors. The average number of non‐executive directorships held by each executive is 0.22. Indeed, 85% of executives hold no additional directorships. The holding of non‐executive directorships is positively related to the strength of board monitoring in the executive's company, executive tenure and company size. Executives in companies with greater growth opportunities and operating in regulated industries are less likely to hold non‐executive directorships.     

Destabilizing Science From the Right: The Rhetoric of Heterosexual Victimhood in the World Health Organization's 2008 HIV/AIDS Controversy

This article examines the 2008 World Health Organization/Joint United Nations Program on HIV/AIDS controversy through original reports and media coverage. Analysis reveals that discourse rhetorically exonerates heterosexuals from HIV/AIDS while reifying homophobic and morally righteous ideology about HIV/AIDS and homosexuality. Discourses of “fraudulent science,” “heterosexual absence,” and reverse victimization destabilize meaning of HIV/AIDS and heterosexuality. “AIDS,” “heterosexuality,” and even victimhood and minority status were destabilized and resignified in a rhetoric that benefited from its status as science even as it rendered past science suspect as ideological.     

Individually-Tailored Support for Ethnically-Diverse Caregivers: Enhancing Our Understanding of What Is Needed and What Works

Family caregivers play a crucial role in maintaining older adults in the community, often at great cost to themselves. We discuss a program serving ethnically-diverse caregivers in New York, offering, on average, 11 case-management hr per client. Participants reported statistically significantly reduced stress and burden. Respite was the most requested service, belying an assumption underlying policies and services that families, particularly among minority populations, can and will care for their older members. Thus, services must be carefully tailored to meet actual caregiver needs, including provision of alternatives that reduce caregiver involvement. We discuss practice and policy implications.     

Constructing Unemployment: Britain and France in Historical Perspective

Unemployment emerged as a specific social issue in the late‐19th century, but the nature of the threat it posed and the governing instruments available to address it varied widely. Using Britain and France as strongly contrasting cases, this article demonstrates the variable and historically contingent constructions of unemployment as a problem, and demonstrates how policy to address it was developed using administrative agencies that embodied specific, normative visions of how society and employment should operate. The different governing trajectories through which the issue was tackled is analyzed in terms of the context within which the problem of unemployment originally emerged. The article demonstrates the socio‐political nature of unemployment's construction and, with reference to recent labour market change, questions its utility as a means of assessing economic or social well‐being.