By all measures: an examination of the relationship between segregation and health risk from air pollution

A great deal of evidence suggests that African-Americans in more racially segregated communities are at a higher risk for a variety of health problems. Scholars have argued that these health inequalities might be explained by racial differences in exposure to air toxins. However, there are a number of ways to measure segregation, each representing different pathways of exposure. There has yet to be a systematic evaluation of how exposure to air toxins varies by these different measures, making it difficult to begin to theorize about the causal story linking segregation, pollution and health. This paper addresses this gap by examining how the health risk from industrial toxins varies by the 19 most commonly used segregation measures. Results show that, with the exception of two segregation measures, living in metro areas with relatively higher segregation levels, is associated with significantly greater health risk from industrial air toxins for all racial groups. Moreover, African-Americans in more segregated metro areas typically experience an added risk of exposure compared to non-Hispanic whites.     

Book Reviews

Book reviewed in this article:
Gottman, John M., & Leiblum, Sandra R. How to do psychotherapy and how to evaluate it: A manual for beginners .
Nichols, William C., Jr., (Editor). Marriage and family therapy: A reader from NCFR journals .
Greenwald, Harold. Direct decision therapy .
Kaufman, Walter. Without guilt and justice: From decidophobia to autonomy     

Khaldunian studies today: The contributions of Syed Farid Alatas

The growing interest in the 14^th-century Muslim scholar Ibn Khaldun's ideas and his essentially historical-sociological perspective implies a promise of a critical appraisal of the Eurocentric nature of the classical and contemporary social theory. An important role is played in this endeavor by Syed Farid Alatas whose work has been important not only in terms of further introducing Ibn Khaldun's theory to the Western audience but also making it more relevant to the contemporary theoretical debates and historical sociology. This article reviews Alatas' work on Ibn Khaldun with a view to demonstrate that his contributions to the Khaldunian studies today take at least five different forms: a critical examination of Ibn Khaldun's theory in general, and reconstruction of it as a theory of the state, and of religious revival in particular; demonstrating its significance for the modern social sciences; its application to a number of premodern and modern empirical cases; and a theoretical integration of his model with some modern Western theories, which is a rare occurrence in both Khaldunian studies and sociology in general.     

İsmail Hakkı İzmirli (1932), Philosophical Currents in Islam: Ibn Khaldun (732-808)

A leading intellectual of the late-Ottoman and early-Turkish Republican period, İsmail Hakkı İzmirli taught philosophy, theology, and law in İstanbul, and was a prolific writer, with more than forty-five published and unpublished books, and many articles. The article reproduced here in translation, which was part of a series of articles on leading Muslim thinkers, is on the life and work of Ibn Khaldun, in which the author both briefly introduces his major books (al-‘Ibar, al-Muqaddima, and al-Ta'rif in particular) and outlines his methodological principles and main arguments in the Muqaddima. İzmirli treats Ibn Khaldun as a philosopher and historian, admiring his philosophical views and methodological perspective as quite original and in many ways trailblazing, though he also criticizes him for unnecessarily “delving into useless issues such as Sufism.” Finally, he frequently compares him with both Muslim and Western intellectuals, e.g. Ibn Rushd, Ibn Miskawayh, al-Farabi, Ibn Bâjja, Niẓām al-Mulk, and Edward Gibbon, Marx, Spencer, and Comte, often finding Ibn Khaldun as a pioneer anticipating the ideas of later thinkers. He devotes a separate section to compare him with Machiavelli, emphasizing differences as well as similarities between the two, and likening the latter to a “disciple” of Ibn Khaldun's, claiming that “Machiavelli followed his mentor's path in his The Prince.”     

Optimal composite scores for longitudinal clinical trials under the linear mixed effects model

Clinical trials of chronic, progressive conditions use rate of change on continuous measures as the primary outcome measure, with slowing of progression on the measure as evidence of clinical efficacy. For clinical trials with a single prespecified primary endpoint, it is important to choose an endpoint with the best signal‐to‐noise properties to optimize statistical power to detect a treatment effect. Composite endpoints composed of a linear weighted average of candidate outcome measures have also been proposed. Composites constructed as simple sums or averages of component tests, as well as composites constructed using weights derived from more sophisticated approaches, can be suboptimal, in some cases performing worse than individual outcome measures. We extend recent research on the construction of efficient linearly weighted composites by establishing the often overlooked connection between trial design and composite performance under linear mixed effects model assumptions and derive a formula for calculating composites that are optimal for longitudinal clinical trials of known, arbitrary design. Using data from a completed trial, we provide example calculations showing that the optimally weighted linear combination of scales can improve the efficiency of trials by almost 20% compared with the most efficient of the individual component scales. Additional simulations and analytical results demonstrate the potential losses in efficiency that can result from alternative published approaches to composite construction and explore the impact of weight estimation on composite performance. Copyright © 2016. The Authors. Pharmaceutical Statistics Published by John Wiley & Sons Ltd.     

Donation to disaster relief campaigns: Underlying social cognitive factors exposed

A number of very serious natural disasters have put an enormous pressure on relief organizations in the last few years. The present study exposes underlying social cognitive factors for donation to relief campaigns. A causal model was constructed, based on social cognitive theory, research on attitudes, and the impact of media exposure. The aim was to expand and improve an already existing model by Cheung and Chan [Cheung, C. K., & Chan, C. M. (2000). Social-cognitive factors of donating money to charity, with special attention to an international relief organisation. Evaluation and Program Planning, 23, 241–253]. The expanded model showed a better fit. Furthermore, the expanded model explained two-thirds of the variance of the intention to donate to a disaster relief campaign. The greatest predictor of the intention to donate proved to be “Past donation to disaster relief campaigns.” The factor “News exposure” was indicated to be a valuable additional factor, as it had a significant direct effect on “Awareness of a disaster relief campaign” and was the only factor that had a total effect on all other factors, including “Intention to donate to a disaster relief campaign.”     

Body Image and Quality of Life in a Group of African American Women

African American (AA) women’s preference for a larger body size and underestimation of their body weight may affect the relationship between their body weight and weight-related quality of life (QOL). We wanted to examine the relationship between weight-related QOL and body mass index (BMI) in a sample of overweight AA women. Thirty-three overweight AA women completed a clinic visit to measure height, weight, and complete surveys including the Impact of Weight on Quality of Life-Lite (IWQOL-Lite) and the Stunkard Figure Rating Scale. BMI was calculated using measured height and weight. Correlations and linear regression models were estimated using SAS v 9.1. In this sample, the mean total quality of life score was 78.00 ± 17.68 on a 100 point scale. There was a modest correlation between BMI and total weight-related QOL (r = −0.034, p = 0.053). Body image dissatisfaction was the strongest predictor of total quality of life score (p = 0.04). African American women’s unique cultural perception of body image may play a key role in weight-related QOL.     

Premarital sexual experience: A longitudinal study∗

The relative importance of women's sex‐role orientation and their observation of maternal sexual affection in predicting college women's attitudes toward 18 sexual behaviors were examined in this investigation. A sample of 122 single female college students from intact families was administered three questionnaires: the Attitudes Toward Women Scale, the Mother's Expression of Affection Scale, and the Sexual Attitude Questionnaire. Stepwise regression analysis was used to determine the relative contribution of sex‐role orientation and maternal expression of affection to attitudes toward each of the sexual behaviors. Findings revealed that sex‐role orientation was a significant predictor of attitudes toward 14 of the 18 specific items. More egalitarian views of women were associated with more positive attitudes toward engaging in a variety of sexual behaviors and taking steps to ensure one's own contraceptive security. Mother's expression of sexual affection toward her spouse was a significant predictor of only two behavioral items. Greater exposure to an affectionate mother was associated with more positive attitudes toward speaking affectionately to men and behaving assertively in a sexual relationship. Implications of the findings for family practitioners are discussed.