Preschoolers' Bistrategic Resource Control,Reconciliation, and Peer Regard

Bistrategic resource control entails using both coercive and prosocial strategies in competition for resources. The present study sought to clarify whether bistrategic involves more than simply using both strategies some of the time. Examining 88 preschoolers' coercion and prosociality over an entire school year, results showed that coercive resource control was used most frequently at the start of the school year, presumably to access resources and establish social dominance. Rates of prosocial resource control increased over the school year, and socially dominant preschoolers showed higher rates compared with peers, presumably to maintain resource control while keeping peers as allies. Socially dominant preschoolers also used reconciliation more often than peers, resulting in higher rates of affiliation between former competitors and more positive peer regard from fall to spring. Findings are discussed in terms of resource control theory and the importance of situating social behaviors within the behavioral and relationship context in which they are embedded.     

A chuckle a day keeps the doctor away: therapeutic humor and laughter

There are several beneficial efforts attributed to humor and laughter, including improved immune function, increased pain tolerance, and decreased stress response. Humor therapy, laughter therapy, laughter meditation,and laughter clubs all have unique implications as group programs and as self-management techniques. For practitioners to implement credible programs and effectively teach self-management techniques, further empirical research on the physical, psychosocial, debonafide, and the placebo effects of humor and laughter needs to be conducted.     

When Passion Leads to Problematic Outcomes: A Look at Gambling

Vallerand et al. (2003) have proposed that individuals can have two distinct types of passion toward an activity. Harmonious passion, an internal force leading one to choose to engage in the activity, is proposed to be associated with positive consequences. Obsessive passion, an internal pressure forcing one to engage in an activity, is posited to be associated with negative consequences. The present study sought to determine the role of the two types of passion in various cognitive and affective states associated with dependence and problems with gambling. Participants (n = 412) were recruited at the Montréal Casino and given a questionnaire measuring passion toward gambling, as well as consequences associated with dependence and problem gambling. Results showed that obsessive passion for gambling predicted poorer vitality and concentration in daily tasks, as well as increased rumination, anxiety, negative mood, guilt, and problem gambling. These relations were not found for harmonious passion for gambling. Results are discussed in light of the motivational approach to passion (Vallerand et al., 2003).     

Exploiting proteomics in the discovery of drugs that target mitochondrial oxidative damage

To understand how oxidative stress contributes to aging and age-related diseases and to better evaluate the therapeutic effect of antioxidant drugs, it would be highly desirable to have a comprehensive and detailed readout of the types of oxidative damage that occur to proteins at a global or proteome level. In this Perspective, I examine how proteomics, defined here as the science of examining all proteins in an organelle, cell, or tissue in the context of biological phenomena, can be used to provide molecular details of mitochondrial protein oxidative damage. Specifically, I discuss approaches that combine knowledge of the mitochondrial proteome with newer mass spectrometry-based techniques that are capable of identifying proteins and sites of oxidative modification in a high-throughput manner.     

Caregiving role affects family relationships of African American grandmothers as new mothers again: a phenomenological perspective

Currently, African American grandmothers are becoming caregivers to grandchildren whose parents, for various reasons, are not providing them with adequate care. Replacing their adult children, as parents, while continuing to mother them along with caring for grandchildren are essential components of this complex situation. A part of the findings from this qualitative study of the experience of grandmother caregivers indicated that family relations are affected with their grandchildren, the parents of their grandchildren, and their other adult children. Implications for culturally sensitive, family-centered clinical practice and future research are discussed.     

Adolescent victimization and problem drinking

This study explores the connection between violent victimization in adolescence and subsequent problem drinking. Using national data we estimate the effects of adolescent victimization on a 3-category problem drinking measure (Abstainers, Moderate, and Binge Drinkers). We also examine the differences in the social and personal consequences of drinking across victims and non-victims. These consequences include harm to friendships, health, outlook on life, marriage, work, studies, and financial position. Victims of adolescent violence are more likely to engage in subsequent binge drinking and experience negative drinking consequences, particularly negative financial consequences. The findings are consistent with the adolescent development literature, which has highlighted the importance of violent victimization in the transition to adult roles and responsibilities. Additional research, particularly longitudinal data on violent victimization and substance abuse on a nationally representative sample of young people and adults is needed to further explore the connection between violent victimization and subsequent problem drinking.     

Reducing integrins improves the quality of fly life

Integrins are cell surface receptors that mediate adhesion to the extracellular matrix. In this Perspective, we focus on the recent finding that a decrease in the levels of integrins yields fruit flies that retain youthful mobility as they age and display an increased mean life span. We discuss how the reduction of integrin activity might lead to the observed changes.