San Diego State University

About: San Diego State University is a education organization based out in San Diego, California, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 12418 authors who have published 27950 publications receiving 1192375 citations. The organization is also known as: SDSU & San Diego State College.

Are psychosocial factors mediators of socioeconomic status and health connections? A progress report and blueprint for the future.

Abstract: The association between socioeconomic status (SES) and physical health is robust. Yet, the psychosocial mediators of SES-health association have been studied in relatively few investigations. In this chapter, we summarize and critique the recent literature regarding negative emotions and cognitions, psychological stress, and resources as potential pathways connecting SES and physical health. We discuss the psychosocial origins of the SES-health links and outline how psychosocial factors may lead to persistently low SES. We conclude that psychosocial resources may play a critical mediating role, and the origins of the SES-health connection are apparent in childhood. We offer a blueprint for future research, which we hope contributes to a better understanding of how SES gets under the skin across the life span.

A faint type of supernova from a white dwarf with a helium-rich companion

Abstract: Supernovae are thought to arise from two different physical processes. The cores of massive, short-lived stars undergo gravitational core collapse and typically eject a few solar masses during their explosion. These are thought to appear as type Ib/c and type II supernovae, and are associated with young stellar populations. In contrast, the thermonuclear detonation of a carbon-oxygen white dwarf, whose mass approaches the Chandrasekhar limit, is thought to produce type Ia supernovae. Such supernovae are observed in both young and old stellar environments. Here we report a faint type Ib supernova, SN 2005E, in the halo of the nearby isolated galaxy, NGC 1032. The ‘old’ environment near the supernova location, and the very low derived ejected mass (~0.3 solar masses), argue strongly against a core-collapse origin. Spectroscopic observations and analysis reveal high ejecta velocities, dominated by helium-burning products, probably excluding this as a subluminous, or a regular type Ia supernova. We conclude that it arises from a low-mass, old progenitor, likely to have been a helium-accreting white dwarf in a binary. The ejecta contain more calcium than observed in other types of supernovae and probably large amounts of radioactive ^(44)Ti.

A quantitative meta-analysis of neurocognitive functioning in posttraumatic stress disorder.

Abstract: Posttraumatic stress disorder (PTSD) is associated with regional alterations in brain structure and function that are hypothesized to contribute to symptoms and cognitive deficits associated with the disorder. We present here the first systematic meta-analysis of neurocognitive outcomes associated with PTSD to examine a broad range of cognitive domains and describe the profile of cognitive deficits, as well as modifying clinical factors and study characteristics. This report is based on data from 60 studies totaling 4,108 participants, including 1,779 with PTSD, 1,446 trauma-exposed comparison participants, and 895 healthy comparison participants without trauma exposure. Effect-size estimates were calculated using a mixed-effects meta-analysis for 9 cognitive domains: attention/working memory, executive functions, verbal learning, verbal memory, visual learning, visual memory, language, speed of information processing, and visuospatial abilities. Analyses revealed significant neurocognitive effects associated with PTSD, although these ranged widely in magnitude, with the largest effect sizes in verbal learning (d = -.62), speed of information processing (d = -.59), attention/working memory (d = -.50), and verbal memory (d =-.46). Effect-size estimates were significantly larger in treatment-seeking than community samples and in studies that did not exclude participants with attention-deficit/hyperactivity disorder, and effect sizes were affected by between-group IQ discrepancies and the gender composition of the PTSD groups. Our findings indicate that consideration of neuropsychological functioning in attention, verbal memory, and speed of information processing may have important implications for the effective clinical management of persons with PTSD. Results are further discussed in the context of cognitive models of PTSD and the limitations of this literature. (PsycINFO Database Record (c) 2015 APA, all rights reserved)

Children who prosper in unfavorable environments: the relationship to social capital

Abstract: OBJECTIVE. Social capital describes the benefits that are derived from personal social relationships (within families and communities) and social affiliations. This investigation examined the extent to which social capital is associated with positive developmental and behavioral outcomes in high-risk preschool children. DESIGN. A cross-sectional case-control analysis of young children "doing well" and "not doing well" at baseline in four coordinated longitudinal studies. PARTICIPANTS. A total of 667 2- to 5-year-old children (mean age, 4.4 years) and their maternal caregivers who are participating in the Longitudinal Studies of Child Abuse and Neglect Consortium. At recruitment, all children were characterized by unfavorable social or economic circumstances that contributed to the identification of the children as high risk. MEASURES. Social capital was defined as benefits that accrue from social relationships within communities and families. A social capital index was created by assigning one point to each of the following indicators: 1) two parents or parent-figures in the home; 2) social support of the maternal caregiver; 3) no more than two children in the family; 4) neighborhood support; and 5) regular church attendance. Outcomes were measured with the Child Behavior Checklist, a widely used measure of behavioral/emotional problems, and with the Battelle Developmental Inventory Screening Test, a standardized test that identifies developmental deficits. Children were classified as doing well if their scores on these instruments indicated neither behavioral nor developmental problems. RESULTS. Only 13% of the children were classified as doing well. The individual indicators that best discriminated between levels of child functioning were the most direct measures of social capital-church affiliation, perception of personal social support, and support within the neighborhood. The social capital index was strongly associated with child well-being, more so than any single indicator. The presence of any social capital indicator increased the odds of doing well by 29%; adding any two increased the odds of doing well by 66%. CONCLUSIONS. Our findings suggest that social capital may have an impact on children's well-being as early as the preschool years. In these years it seems to be the parents' social capital that confers benefits on their offspring, just as children benefit from their parents' financial and human capital. Social capital may be most crucial for families who have fewer financial and educational resources. Our findings suggest that those interested in the healthy development of children, particularly children most at risk for poor developmental outcomes, must search for new and creative ways of supporting interpersonal relationships and strengthening the communities in which families carry out the daily activities of their lives. Language: en