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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. 相似文献
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Raye Hudson Rosen Linda Herskovitz Jack M. Stack 《Population research and policy review》1982,1(2):153-170
This article focuses on differences between teenagers who became sexually active in early adolescence (15 or younger) and those who did so in late adolescence (16–19). It reviews research on adolescent sexual behavior and summarizes findings on factors associated with adolescent coitus. The few findings on the meaning of first coitus are also noted. A study which used a sample of already-pregnant adolescents is presented in detail. While few differences between those who first had coitus during early adolescence and those who had it later were significant, most were in the predicted direction, and none were contrary to the hypotheses. A major significant difference concerned the relationship between sex and love; those who found the two related tended to start their sexual careers later than those who did not. Policy implications of research findings are discussed, especially those relevant to sex education.This research was supported in part by Grant No. HD 11099 NICHD, and in part by Grant No. 78-499, Charles Stewart Mott Foundation.This article is a revision of a paper presented at the Annual Meetings of the Society for the Study of Social Problems, August 26, 1980, New York, N.Y. 相似文献
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This paper is concerned with the relationship between two aspects of self‐concept—perception of gender role and perceived competence—and the decision to have an abortion as a solution to a problem pregnancy. It was hypothesized that (1) there will be a positive relationship between the choice of abortion and perceived competence, and (2) there will be a negative relationship between the choice of abortion and the degree to which female role is perceived traditionally. The data came from a broader study conducted throughout Michigan during 1974–75. The study group consisted of 921 women who chose to have an abortion. A comparison group included 360 women with problem pregnancies who chose to keep their child. Data were obtained through an anonymous questionnaire which included the two relevant indices. The abortion group was found to be significantly higher in perceived competence than those who chose to keep the child, and the black abortion group was significantly less traditional than the black group which chose to keep the child. These relationships remained significant when age was controlled. Race did not affect subjects' degree of perceived competence, but blacks were more traditional than whites regardless of decision. 相似文献
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Ted Hiebert 《Symbolic Interaction》2013,36(3):373-376
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