Musculoskeletal symptom survey among cement and concrete workers

Work in construction is associated with a high risk for musculoskeletal disorders and injuries. The symptom survey was conducted to determine the magnitude and musculoskeletal injury characteristics among the cement and concrete workers and identify the most problematic work-related activities and job factors that might have contributed to the occurrence of these disorders. Findings revealed that a large proportion of the laborers (77%) experienced at least one musculoskeletal disorder in the last year. Low back pain was reported as the most frequently experienced symptom (66%). 'Working while in pain' the concrete workers perceived as the major problem in the trade. Other problematic work-related activities included 'bending or twisting the back', 'work in hot, cold or wet conditions', and 'handling heavy objects'. Most of the laborers (82%) requested on-the-job safety training. Survey results combined with the outcomes of focus groups discussions and work site observations were used in the design of a training program aimed at the prevention of musculoskeletal morbidity in the trade. The program incorporated ergonomics principles, hazard recognition, safe work practices, problem solving and personal protection in the training curriculum for membership of the trade.     

Artificial neural networks and center-of-pressure modeling: a practical method for sensorimotor-degradation assessment

Numerous methods for studying the prevention of falls and age-related sensorimotor degradation have been proposed and tested. Some approaches are too impractical to use with seniors or too expensive for practitioners. Practitioners desire a simple, reliable technique. The goals of this research were to develop such an approach and to apply it in exploring the effect of Tai Chi on age-related sensorimotor degradation. The method employed artificial-neural-network (ANN) models trained by using individuals' center-of-pressure (COP) measurements and age. Ninety-six White and Chinese adults without Tai Chi training were tested. In contrast, a third group, Chinese seniors with Tai Chi training, was tested to ascertain any influence from Tai Chi on sensorimotor aging. This study supported ANN technology with COP data as a feasible tool in the exploration of sensorimotor degradation and demonstrated that Tai Chi slowed down the effects of sensorimotor aging.     

英国科学哲学会第八届年会

英国科学哲学会第八届年会于1963年9月20～22日在牛津大学圣休学院(St.Hugh(?) College)举行。年会由四次座谈会组成,参加者约有六十位会员和来宾。这四次座谈会讨论:“生物成长过程的模型”,“经济学中的先验与经验”,“经济学中的价值判断”,和“数理逻辑与科学哲学的关系”。     

The effect of cross-cultural dialogue on child welfare parenting classes: anecdotal evidence in black and white

The child welfare system indicates that evidence of successful completion of parenting classes is instrumental in determining whether parents are actively engaged in the process of permanency planning. Such classes vary in length and intensity with topics ranging from "How to Raise Healthy Families" to "How to Discipline Your Child." Two social workers (one white and one black), who initially disagreed about the format of a parenting class, chronicle their efforts to collaborate and create a class format that recognizes the psychosocial and, more specifically, the cultural influences inherent in facilitating these classes. The juxtaposition of the clinical concepts of projection and projective identification are evaluated against the backdrop of the social concepts of empowerment and diversity.     

Bridging child welfare and juvenile justice: preventing unnecessary detention of foster children

Gaps in service coordination between child welfare and other child-serving agencies are well documented. This article examines the gap between the child welfare and juvenile justice systems and discusses a program, Project Confirm, designed to reduce the problems associated with this gap. Project Confirm aims to improve cooperation between juvenile justice and child welfare agencies to prevent the unnecessary detention of arrested foster children in secure facilities. The program's design is outlined, and implementation statistics and government partner perceptions of the program in its first year of operations are provided. The article also identifies future challenges to implementation and discusses the broader implications of the program. In making this appeal for coordination and collaboration among public agencies, I'm not talking about pro forma integration efforts-I'm not talking about memoranda of understanding or top-level reorganizations that have autonomous agencies vaguely reporting to a single box labeled "human services." Rather, I'm talking about the much more challenging objective of achieving real working partnerships at the front line. (Nelson, 1998, p. 6)     

Accountability in action?: the case of a database purchasing decision 1

The increasing prevalence of audit in university settings has raised concerns about the potentially adverse effects of invasive measures of performance upon the conduct of research and generation of knowledge. What sustains the current commitment to audit? It is argued that in order to address this question we need to understand how and to what extent notions of accountability are played out in practice. This is illustrated through the analysis of materials from an ethnographic study of ‘good management practice’ in the deployment of technologies in university settings. The paper examines the ways in which ideas of accountability — involving considerations such as ‘value for money’— inform the practical processes of deciding about the purchase of a new database technology.     

Local and state school-based substance use surveys. Availability,content, and quality

School-based substance use surveys are an important data source for prevention and evaluation researchers, but access to students has become progressively restricted by schools. Because almost all states and many districts conduct their own regular surveys, archived data are a potential resource for informed policy and practice decisions. In this study, substance use survey data were successfully collected from 69 of 105 targeted school districts located in 12 states. Results indicate the availability and quality of extant data currently limit their usefulness. Recommendations are made regarding how schools could be assisted to improve the value of their substance use surveys.     

Indiscriminate data aggregations in meta-analysis. A cause for concern among policy makers and social scientists

Whether you are a policy maker of social scientist, you are slowly being drowned in a sea of often inconsistent research data. Proponents of meta-analysis claim that such data can be objectively and usefully summarized for you. The author notes how the assumptions of the meta-analytic model preclude the synthesis of experimental data (which has a clear cause-and-effect logic) with quasi-experimental and/or nonexperimental data (both of which lack such clarity). Yet in the author's review of 64 recent meta-analytic articles, 11 were found to improperly make such aggregations. Why? The author shows how the guidance provided by the leading proponents of meta-analysis either blurs the distinction or is misleading.     

Guns and gun threats at college

A random sample of more than 10,000 undergraduate students, selected from 119 4-year colleges, answered a mailed questionnaire about gun possession and gun threats. Approximately 4.3% of the students reported that they had a working firearm at college, and 1.6% of them have been threatened with a gun while at school. Students are more likely to have a firearm at college and to be threatened with a gun while at college if they are male, live off campus, binge drink, engage in risky and aggressive behavior after drinking, and attend institutions in regions of the United States where household firearm prevalence is high. Having a firearm for protection is also strongly associated with being threatened with a gun while at college. Students who reported having firearms at college disproportionately reported that they engaged in behaviors that put themselves and others at risk for injury.