Ultrasonometric profiling of incidence and risk of osteoporosis in rural women

BACKGROUND: It is estimated that over 200 million people worldwide have osteoporosis. The prevalence of osteoporosis is continuing to escalate with the increasingly aging population. The major complication of osteoporosis is an increase in fragility fractures leading to morbidity, mortality, and decreased quality of life. This investigation profiled the incidence and risk of osteoporosis in adult women from a rural setting using ultrasonic bone scanning technology. METHODS: Between 2001 and 2005, adult female subjects (n = 323) in the age range of 40-87 were drawn from an independent, community dwelling, convenience sample. Bone mineral density T-scores were evaluated using heel ultrasonometry. Demographic and risk factor data, Merck Osteoporosis Evaluation SCORE questionnaire data, and the Osteoporosis Risk Assessment questionnaire data were analyzed. RESULTS: Results of these scans indicate that 25% of the total population had a T-score < or = -1.0, implying a 1.5- to 2.0-fold increase in risk ratio of hip or spinal fracture for each standard deviational decrease. Age at menopause and weight had a positive correlation with T-scores. While the overall scores on the Merck SCORE questionnaire were inversely correlated to T-scores, no significant correlation was found between the Osteoporosis Risk Assessment questionnaire and T-score data. Additionally, women who had taken estrogen had significantly higher T-scores (p = 0.038) than those who had not. CONCLUSION: That approximately 25% of this sample has low bone mass or osteoporosis underscores the importance of early screening in order to develop preventative awareness and provide education on bone health management. This finding has particularly important ramifications, since the sample was rural women, who typically have limited access to diagnostic bone density procedures.     

Reading Rites: Teaching Textwork in Graduate Education

The ability to comprehend, discuss, and use disciplinary texts is central to graduate education. Although techniques for teaching writing have been well-discussed, and even incorporated into graduate curricula, the same is not true for techniques of scholarly reading, a crucial skill that is largely untaught and which students must learn independently or through shared culture. We argue that more explicit training in reading has potential benefits for graduate student education. Drawing on thirty-six in-depth interviews with students in the social sciences, we focus on the routines of managing academic reading, necessary for accessing information for research. Graduate students develop techniques and schedules that permit them to read rapidly or carefully, to read for different academic purposes, and to make information retrievable through notating. We suggest how graduate programs might incorporate reading education into the curriculum.     

Acculturation inclinations and subjective health status of internal migrants in James Town,an urban slum settlement in Accra

The impact of acculturation on health status has been a subject of debate for over three decades. In this exploratory study, we use cross-sectional data to examine the relative effects of acculturation inclinations on self-rated health statuses among migrants in a poor, urban neighborhood in Accra. Much emphasis is placed on the role of the urban environment in disease outbreaks within the city, the patterns of communicable and non-communicable diseases, spatial health inequalities, and the distribution of sexual and reproductive illness risks in Accra. However, the ways by which acculturation inclinations and dimensions may exert positive or negative influence on health outcomes in such contexts have not been examined. We developed proxies for four main acculturation elements: assimilation, separation, integration, and marginalization. We used results from a semi-structured survey questionnaire with 296 migrants. After controlling for socio-demographic characteristics and social capital, findings from Ordinal Logistic Regression models indicate that the acculturation predictors of subjective health status are assimilation and marginalization. This study is the first step in understanding the possible trajectories by which acculturation affects health in the internal migration context in Ghana.     

Research with Older Adult Methadone Clients: The Importance of Monitoring Suicide Ideation

ABSTRACT

This study reports on the importance of monitoring suicide ideation among older adult research participants. A recently completed randomized controlled trial of older adults who are current clients in methadone maintenance treatment (MMT) served as a case study to elucidate a suicide protocol that was designed to account for the potential instances of suicide ideation within the research project structure. As the numbers of older adult heroin users increases, this study’s findings seek to influence research protocols that involve older adults with addictions who may be particularly vulnerable to suicide risk due to comorbid psychiatric conditions and psychosocial adversities.     

L'OIT et le droit de grève

Selon l'auteure, la contestation en juin 2012 par le groupe des employeurs de l'OIT du point de vue jusque‐là généralement accepté sur l'exercice du droit de grève en vertu de la convention (n° 87) sur la liberté syndicale et la protection du droit syndical, 1948, méconnaît l'appréhension historique du cadre dans lequel s'inscrit cette convention. Elle montre que les mandants de l'OIT ont en permanence reconnu l'existence d'un droit positif de grève, qui est indissolublement lié au droit de liberté syndicale, et en est un corollaire incontournable. L'auteure analyse aussi le rôle des organes de contrôle de l'OIT en la matière.     

ARE PROMISES MEANINGLESS IN AN UNCERTAIN CROWDFUNDING ENVIRONMENT?

We use a prominent crowdfunding organization, Kickstarter, to analyze the factors that determine timeliness of delivery of rewards to financial backers. We seek to determine the extent to which promised rewards are delivered on time and to characterize projects that have stronger likelihood of timely delivery of rewards. We find that lateness commonly occurs, yet cannot be explained universally with any given set of project characteristics, implying that the uncertainty of rewards involved with crowdfunding entities is difficult to overcome. (JEL D71, D83, L82)     

A Mass Redistribution Algorithm for Right Censored and Left Truncated Time to Event Data

Failure times are often right-censored and left-truncated. In this paper we give a mass redistribution algorithm for right-censored and/or left-truncated failure time data. We show that this algorithm yields the Kaplan-Meier estimator of the survival probability. One application of this algorithm in modeling the subdistribution hazard for competing risks data is studied. We give a product-limit estimator of the cumulative incidence function via modeling the subdistribution hazard. We show by induction that this product-limit estimator is identical to the left-truncated version of Aalen-Johansen (1978) estimator for the cumulative incidence function.     

Pseudomartingale estimating equations for modulated renewal process models

Summary.  We adapt martingale estimating equations based on gap time information to a general intensity model for a single realization of a modulated renewal process. The consistency and asymptotic normality of the estimators is proved under ergodicity conditions. Previous work has considered either parametric likelihood analysis or semiparametric multiplicative models using partial likelihood. The framework is generally applicable to semiparametric and parametric models, including additive and multiplicative specifications, and periodic models. It facilitates a semiparametric extension of a popular parametric earthquake model. Simulations and empirical analyses of Taiwanese earthquake sequences illustrate the methodology's practical utility.     

STUDENT POVERTY AT THE UNIVERSITY OF BALLARAT

This article draws together the findings of two recent studies at the University of Ballarat which suggest that poverty is experienced among a considerable minority of students. In a pilot study of 54 students and a phenomenological study of 17 students, different ways of measuring poverty were considered: the Poverty Line, dependence on a government allowance, cultural criteria and self‐perception. It was found that undertaking part‐time work failed to protect students from poverty, with significant indebtedness affecting all. Those under the Poverty Line were more likely to be young and male and less likely to be living in a family. Poor students saw their well‐being and self‐worth affected by poverty as they struggled to escape a cycle of indebtedness and risked academic standards by working longer hours.