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101.
Social Indicators Research - This paper investigates the relationship between economic adversity and voter participation in Turkish parliamentary elections. We employ a dynamic model of voter... 相似文献
102.
Prof. Dr. Helmut E. Lück 《Gruppendynamik und Organisationsberatung》2009,40(1):102-114
It is shown that the concept of ?Hawthorne effect‘ was created many years after the Hawthorne studies in Western Electric Company. Presently, the ?Hawthorne effect‘ concept is increasingly used in social sciences and many other sciences. The concept is however used in different and occasionally digressive meanings. The question arises whether such a concept is useful at all. In addition, it is discussed why the rather imprecise reports of single Hawthorne field experiments have been spread as academic folklore, and why rather undefined concepts like the ?Hawthorne effect‘ are used so widely in psychology and social sciences. 相似文献
103.
Tyler M. Argüello 《Journal of gay & lesbian social services》2016,28(3):231-244
Queer theory often falls impotent in its palatability across disciplinary lines. I offer a conceptual article that interrogates the dis-ease and divide when considering queer theory in and for the health sciences. In so doing, I look to foster a process of making queer theory more tenable to applied practice—and to make practice in social work, at least, more queer. The exemplar of HIV is deconstructed as a preeminent discourse and health disparity. In the end, it is argued that queer theory may be an essential intervention in the arsenal of the helping professions. 相似文献
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In this paper we show the exact estimability of the transfer functions of linear stochastic systems under two sets of conditions.The main point is to demonstrate the measurability of the “identifying” function.The estimability od the transfer functions is not only of interest for its own but also for the estimability of the system parameters. 相似文献
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Felix Wolter Jürgen Schiener 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2009,61(1):90-117
The claim for lifelong learning or vocational further training is most often set out without having clarified satisfactorily the individual gains which result from training activities. Based on human capital theory, which we extend by arguments from signaling- and game theory, the paper investigates for western and eastern Germany individual returns of training on income with longitudinal data (1996–1998) from the recently available “Mikrozensus-Panel”. A problem in identifying causal training effects is a selection bias caused by unobserved heterogeneity which – using conventional methods – leads to overestimation of the effects. Fixed- and Random-Effects-Models – which we discuss and confront empirically regarding the training issue – present a method for controlling the selection bias. The results show evidence for positive and significant training effects on income, although the actual amount of income growth is low. Whereas no differences by sex were found, separate analyses by age, skill levels and region indicate that not all of the subgroups benefit positively from further training activities. Therefore, the findings relativize the importance of social inequalities in the access to further training for the process of status attainment in general. 相似文献
110.
Natalie Von Goetz Matthias Wormuth Martin Scheringer Konrad Hungerbühler 《Risk analysis》2010,30(3):473-487
Bisphenol A (BPA) is an endocrine disrupting chemical that is found in human urine throughout industrial societies around the globe. Consumer exposure pathways to BPA include packaged food, household dust, air, and dental fillings. To date, information on the relative contribution of the different pathways to total consumer exposure is lacking, but is key for managing substance‐associated risks. We investigated the relative contributions of the pathways known to be most relevant for nine different consumer groups. Our results suggest that the most important pathways for infants and children are the use of polycarbonate (PC) baby bottles and for adults and teenagers the consumption of canned food. Dental surgery can also considerably contribute over a short time directly after the surgery. For infants fed with PC baby bottles with mean dose rates of 0.8 μg/kgbw/d the highest exposure dose rate was calculated. This dose rate is far below the tolerable daily intake of 50 μg/kgbw/d. However, it is of the same order of magnitude as recently reported concentrations that caused low‐dose health effects in rodents. We find a pattern of falling exposure levels with rising age that is supported by urinary concentrations of BPA available for selected consumer groups. Similarly, the exposure levels we predict are confirmed by the levels reported in these studies. 相似文献