The effectiveness of back pain and injury prevention programs in the workplace

Musculoskeletal disorders in the workplace cause thousands of injuries and cost industry billions of dollars yearly. Work injury prevention programs have been developed and implemented as a means for cost containment. A variety of preventive strategies have been investigated in primary research. The purpose of this review article is to examine the effectiveness of back injury and pain prevention programs in the workplace. Nine studies published between 1995 and 2000 were reviewed and analyzed. Studies used primarily one of three types of preventive strategies: 1) back belts, 2) education and task modification, and 3) education and task modification with workstation redesign. The effectiveness of back belts to prevent back pain and injury remains inconclusive. Positive outcomes were associated with studies reporting high compliance that used job-specific and individualized/small group education and training approaches. Themes that arose following a critical review of primary research studies are discussed.     

Family structure and mental health: the mediating effects of socioeconomic status, family process, and social stress

Although numerous studies reveal differences in mental health by the structure of one's family of origin, there remains debate regarding the processes generating these patterns. Using a sample of young adults (19-21 years) in Miami-Dade County in Florida, this study examines the explanatory significance of three presumed correlates of family type: socioeconomic status, family processes, and level of social stress. Consistent with prior research, our results reveal higher levels of depressive symptoms among those from stepfamilies, single parent families, and single parent families with other relatives present, compared with mother-father families. All three presumed correlates make significant independent contributions to the prediction of depressive symptomatology. Substantial mediating effects also are observed for all three explanatory dimensions. Collectively, they completely or largely explain observed family type variations in mental health risk.     

A comparison of early retirement pensions in the United States and Russia: the pensions of musicians

Early retirement pensions for particular occupations free national policy to establish the social security early retirement age at a later age that is more appropriate for the population as a whole. This paper focuses on early retirement pensions in the United States and the Russian Federation. While comparing early retirement pensions generally, the paper provides a more detailed discussion of the pensions for musicians. While this is an unconventional group to choose for the study of pensions, study of their pensions yields insights into the principles underlying retirement age policy in the two countries.     

Getting Clear About the "Sign Rule"

The question of the "validity" of the "sign-rule" has been a source of continuing disagreement among sociologists. Some of the confusion surrounding this question can be dispelled by focusing on the problem of providing satisfactory interpretations for calculi constructed to represent various commentators' versions of acceptable "sign-rule" arguments. It is shown that the formulae of a calculus constructed to represent standard sign rule arguments must be interpreted in terms of propositions asserting that rankings of objects in virtue of one property are identical to rankings in virtue of another property. A system constructed on the basis of "the assumption of high correlations" is shown to involve distinctions between the logical forms of the premises and the conclusions of key arguments. This sharply limits the deductive power of this system. A third system, constructed on the basis of the "causal modeling" view of the sign rule, is shown to require an interpretation which renders the procedure irrelevant to the construction and testing of general theories.     

Is There a Quest for Identity?*

It is widely assumed that people today experience an imperative quest for identity, and that altruism and work have been displaced as credible routes to self-discovery by the abandonment of inhibition and the attainment of intimacy. A preliminary examination of these premises is made through questions included in a survey of adults in the Los Angeles metropolitan area and in questionnaires administered to students at UCLA, two Australian universities, and one British university. Very few adults in Los Angeles, even in the youngest and most highly educated brackets, acknowledge any preoccupation with the question, “Who am I really?,”though most university students in the four samples do. Both adults and students endorse altruism most frequently, impulse-release least frequently, and intimacy with intermediate frequency as routes to self-discovery. They differ most in their evaluation of work as a medium for self-discovery. All observations apply only to a self-conscious search for identity.     

Some new group divisible designs

The paper lists fourteen new group divisible PBIB/2 designs, which were obtained using the computer program described in John (1976).     

Social security in the Middle East: a brief review

The countries of the Middle East all have traditional social insurance type social security programs. The move towards defined contribution individual accounts that is occurring in some regions has not affected this region The social security programs in the Middle East are not facing the problems of financing found in Europe and North America, in part because they still have relatively high fertility rates and are thus little affected by population aging. They tend to have low retirement ages and some of the wealthy countries of the region provide very generous benefits. Many of them need to consider reforms that raise retirement ages. A characteristic of many of the social security old-age benefit programs of the region is that they exclude foreign workers, who in some countries account for more than half the workforce.     

Planning and execution of a successful hepatitis B immunization program

Today's college students occupy a "window" between older adults, whose need for hepatitis B vaccination is minimal, and younger people who receive the vaccine as part of their childhood immunization series. However, because of the high-risk activities that are often part of student behavior, college students are among the individuals who are at the highest risk for this disease; 75% of all reported hepatitis B cases occur in persons between the ages of 15 and 39 years. It is therefore imperative that college health professionals take seriously their responsibility to educate students about issues related to hepatitis B and make available programs that enable the students to receive immunizations. This article briefly describes a successful hepatitis B education and immunization program at an institution that has no mandatory prematriculation immunization requirements.