Comparison of telomere length in black and white teachers from South Africa: the sympathetic activity and ambulatory blood pressure in Africans study

OBJECTIVE Telomere length is a marker of biological aging that has been linked to cardiovascular disease risk. The black South African population is witnessing a tremendous increase in the prevalence of cardiovascular disease, part of which might be explained through urbanization. We compared telomere length between black South Africans and white South Africans and examined which biological and psychosocial variables played a role in ethnic difference in telomere length. METHODS We measured leukocyte telomere length in 161 black South African teachers and 180 white South African teachers aged 23 to 66 years without a history of atherothrombotic vascular disease. Age, sex, years having lived in the area, human immunodeficiency virus (HIV) infection, hypertension, body mass index, dyslipidemia, hemoglobin A1c, C-reactive protein, smoking, physical activity, alcohol abuse, depressive symptoms, psychological distress, and work stress were considered as covariates. RESULTS Black participants had shorter (median, interquartile range) relative telomere length (0.79, 0.70-0.95) than did white participants (1.06, 0.87-1.21; p < .001), and this difference changed very little after adjusting for covariates. In fully adjusted models, age (p < .001), male sex (p = .011), and HIV positive status (p = .023) were associated with shorter telomere length. Ethnicity did not significantly interact with any covariates in determining telomere length, including psychosocial characteristics. CONCLUSIONS Black South Africans showed markedly shorter telomeres than did white South African counterparts. Age, male sex, and HIV status were associated with shorter telomere length. No interactions between ethnicity and biomedical or psychosocial factors were found. Ethnic difference in telomere length might primarily be explained by genetic factors.

The relationship between risk perception and ethnicity as an explanation for late stage skin cancer diagnosis in Black and Hispanic populations: An analysis using data from the 2005 Health Information and National Trends Survey

Objective. The purpose of this study was to determine the relationship between ethnicity and skin cancer risk perception while controlling for other risk factors: education, gender, age, access to healthcare, family history of skin cancer, fear, and worry. ^ Methods. This study utilized the Health Information National Trends Survey (HINTS) dataset, a nationally representative sample of 5,586 individuals 18 years of age or older. One third of the respondents were chosen at random and asked questions involving skin cancer. Analysis was based on questions that identified skin cancer risk perception, fear of finding skin cancer, and frequency of worry about skin cancer and a variety of sociodemographic factors. ^ Results. Ethnicity had a significant impact on risk perception scores while controlling for other risk factors. Other risk factors that also had a significant impact on risk perception scores included family history of skin cancer, age, and worry. ^

La casa black and white de la UPM: la casa que sigue al sol

La casa black and white de la UPM: la casa que sigue al sol

Changes in the prevalence of chronic disability in the United States black and nonblack population above age 65 from 1982 to 1999

Survey evidence through the early 1990s generally suggests a reduction in disability in the elderly population of the United States. Because the evidence is not fully consistent, several authors have speculated about whether disability declines will continue. This paper reports results from the 1999 National Long-Term Care Survey on disability trends from 1982 through 1999. It is found that disability continued to decline in the 1994 to 1999 period, and that the decline was greater in the 1990s than in the 1980s. The disability decline from 1982 to 1989 was 0.26% per year, from 1989 to 1994 it was 0.38% per year, and from 1994 to 1999 it was 0.56% per year. In addition, disability declined by a greater percentage for blacks than for nonblacks over the 1989 to 1999 period.

BigLaw Identity Capital: Pink and Blue, Black and White

This Article advances a new capital framework for understanding the bargain between large law firms and their lawyers, depicting BigLaw relationships not as basic labor-salary exchanges but rather as complex transactions in which large law firms and their lawyers exchange labor and various forms of capital — social, cultural, and identity. First, it builds on the work of Pierre Bourdieu regarding economic, cultural, symbolic, and social capital by examining the concepts of positive and negative capital, exploring the meaning of capital ownership by entities, and developing the notion of identity capital — the value individuals and institutions derive from their identities. Then, the Article advances a capital theory of BigLaw, in which large law firms and their lawyers engage in complex transactions trading labor, social, cultural, and identity capital for economic, social, cultural, and identity capital. Capital analysis sheds new light on the well-documented and troubling underrepresentation of diverse lawyers at BigLaw. It shows that the underrepresentation of women and minority lawyers is not solely the result of exogenous forces outside the control of large law firms such as implicit bias, but rather the outcome of the very exchanges in which BigLaw and its lawyers engage. Specifically, large law firms take into account the capital endowments of their lawyers in making hiring, retention and promotion decisions, and derive value from their lawyers’ capital, for example, by trading on the identity of women and minority lawyers in marketing themselves as being diverse and inclusive to clients and potential recruits. Yet, while BigLaw trades for the identity capital of women and minority lawyers, it fails to offer them opportunities in return to acquire the social and cultural capital necessary for attaining positions of power, resulting in underrepresentation. Moreover, these labor-capital exchanges are often implicit and made by uninformed participants, and therefore unjust. Exactly because the capital framework describes the underrepresentation of diverse lawyers at BigLaw as an endogenous outcome within the control of BigLaw and its lawyers, however, it is a cautiously optimistic model that offers hope for greater representation of diverse lawyers in positions of power and influence. The Article suggests policies and procedures BigLaw can and should adopt to improve the quality of the exchanges it offers to women and minority attorneys and to reduce the underrepresentation of diverse lawyers within its ranks. Employing the concepts of capital transparency, capital boundary, and capital infrastructure, it demonstrates how BigLaw can (1) explicitly recognize the roles social, cultural, and identity capital play in its hiring, retention and promotion apparatuses and (2) revise its policies and procedures to ensure that all of its lawyers have equal opportunities to develop the requisite capital and compete on equal and fair terms for positions of power and influence.

Heat flow in the Black and Mediterranean seas

Results of heat-flow measurements in the western Black Sea and within the African-Sicilian region of the Mediterranean Sea are presented. New data reveal a well-defined correlation with the deep-seated geologic structure of the regions examined. A heat-flow anomaly within the Pantelleria graben, in the authors' opinion, is a consequence of connective heat transfer along channels of disjunctive faults.