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101.
We describe a regression-based approach to the modelling of age-, order-, and duration-specific period fertility, using retrospective survey data. The approach produces results that are free of selection biases and can be used to study differential fertility. It is applied to Demographic and Health Survey data for Ethiopia, Kenya, Tanzania, and Zimbabwe to investigate differential trends in fertility by education. Parity progression fell and the intervals following each birth lengthened between the 1970s and 2000s in all four countries. Fertility fell most among women with secondary education. In contrast to other world regions, postponement of successive births for extended periods accounted for much of the initial drop in fertility in these African countries. However, family size limitation by women with secondary education in Ethiopia and Kenya and longer birth spacing in Zimbabwe also played significant roles. Thus, birth control is being adopted in Eastern Africa in response to diverse changes in fertility preferences. 相似文献
102.
Nicole Tieben Paul M. de Graaf Nan Dirk de Graaf 《Research in social stratification and mobility》2010
Recent developments in educational transitions research suggest a decomposition of qualitative dimensions within educational levels that are (nearly) universal. However, research on long-term trends of social stratification in the structurally tracked educational system of the Netherlands has not been published previously. In the Netherlands, the secondary educational level is divided into four hierarchical tracks which each lead to different options for subsequent educational decisions. A rapid increase of participation in the higher tracks over time however, may have changed the background-specific distribution of early track placement. This paper improves upon previous research on educational inequality by incorporating a long-term perspective into tracking research. The secondary level of the Dutch educational system is decomposed into its four tracks, using a time frame that covers cohorts that entered secondary education between 1946 and 1998. The application of multinomial logit regressions reveals that the choice of a secondary track is strongly depending on social background features, measured as education of the parents and occupational status of the father. We found linear downward trends of effects for fathers’ occupation in the intermediate tracks for the cohorts that entered secondary education between WWII and the 90s. The effects of parental education also decrease after WWII, but the trend is curvilinear and not enduring. Unexpectedly, the effects almost reach their previous level in the youngest cohort. Our results furthermore suggest that a controversial reform of the educational system in 1968 neither triggered nor accelerated equalization of secondary education, although it resulted in a growth of participation in senior general education (HAVO). 相似文献
103.
Alexandra Nonnenmacher Tim Spier 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2014,66(1):369-393
In this paper, we aim to test Olson’s (The logic of collective action: Public goods and the theory of groups, Cambridge, Harvard University Press, 1965) assumptions of group size effects on free-riding tendencies in political parties. Multilevel analyses of the Deutsche Parteimitgliederstudie (German Party Membership Study) 2009 reveal that for members of the CDU, CSU, SPD, FDP and Bündnis 90/Die Grünen, the assumed negative relationship between the number of party members in the district association and their individual level of activity can only be shown for the eastern states of Germany. Moreover, we show that selective incentives are not suitable for reducing the negative impact of a increasing membership figure, while normative incentives are associated with an increasing free-riding tendency with increasing number of members in the western and eastern Bundesländer. Our results only partly support the assumptions on collective action problems and point to a need for further theoretical and empirical research on group size effects and on the role incentives’ play in explaining the activity in political parties. 相似文献
104.
George Groenewold Bart de Bruijn Richard Bilsborrow 《International migration (Geneva, Switzerland)》2012,50(6):211-231
Psychosocial factors influencing behaviour play a central role in health research but seem under‐explored in migration research. This is unfortunate because these factors, which include knowledge, attitudes, beliefs, intentions and personality traits, provide essential and potentially effective handles for linking migration and migrant‐integration policies. We demonstrate that the health belief model (HBM) conceptualization of behavioural intentions contributes constructs that can further our understanding of migration intentions, thereby broadening the foundations for migration policies. We adapt the HBM to migration behaviour and then test it empirically by using survey data on international migration from West Africa and the Mediterranean region to the European Union. The results confirm that indicators of “perceived threat to living conditions”, “perceived benefits” and “perceived barriers to migration”, “cues to action” and “self‐efficacy” contribute considerably to the explanation of migration intentions. We conclude that psychosocial factors deserve greater prominence in migration theories and empirical research, and we recommend that migration surveys consider this framework to identify relevant indicators of psychosocial factors of international migration and develop appropriate survey questions to measure them. 相似文献
105.
Kylan Mattias de Vries 《Symbolic Interaction》2012,35(1):49-67
Transgender people in the United States change genders in relation to androcentric, heterocentric, and middle‐class whitenormative cultural narratives. Drawing on ethnographic data primarily with transgender people of color, I analyze the ways in which gender, race, social class, and sexuality all combine to create specific background identities – intersected identity frames – which others attribute in interaction. We can better understand these intersected identity frames through the experiences of transgender people, who actively engage in identity management. The meanings others attach to specific combinations are foregrounded in the context of transitioning; some audiences employ dominant, white cultural narratives, while others draw upon ethnic cultural narratives. In all cases, transitioning throws the multi‐dimensionality of intersected identity frames into sharp relief against the background of intersecting social and cultural structural arrangements. 相似文献
106.
The study aimed to conduct a literature review as a step of the development of a new questionnaire about the nursing workers' perception of job factors that may lead to musculoskeletal symptoms. An information synthesis was achieved by collecting data from studies that fitted the search criteria. The results showed that despite the existence of several job factors related to musculoskeletal symptoms, no specific questionnaire that evaluates this relationship was found. Therefore, this literature review presents important topics for developing the first questionnaire to analyze work activities that may contribute to pain and discomfort among nursing personnel. 相似文献
107.
This paper presents an assessment with simulated activities with the aim of analyzing the perception of ease / difficulty of the use of faucets (taps) handles by 180 Brazilian adults. Five different handles faucets were activated for subsequent collection of perceptual data. The procedures were based on main recommendations for biomedical ethics and human research. The results indicate that handles with levers are significantly (p ≤ 0.05) easier to use. The most difficult are characterized by not having support points for the rotation (levers) or more points of pressure concentration in the hand. 相似文献
108.
The proliferation of portable communication and entertainment devices has introduced new dangers to the driving environment, particularly for young and inexperienced drivers. Graduate students from George Mason University illustrate a powerful, practical, and cost-effective program that has been successful in educating these drivers on the dangers of texting while driving, which can easily be adapted and implemented in other communities. 相似文献
109.
110.
da Silva LB da Costa Eulálio EJ Coutinho AS Soares EV de Lourdes Silva dos Santos R 《Work (Reading, Mass.)》2012,41(Z1):5540-5542
The main objective of this study is to evaluate the impact of school furniture and work surface lighting on the body posture of two public Middle School students from Paraíba (Brazil). The target population included 8th grade groups involving 31 students. Brazilian standards for lighting levels, the CEBRACE standards for furniture measurements and the Postural Assessment Software (SAPO) for the postural misalignment assay were adopted for the measurements comparison. The statistic analysis includes analyses of parametric and non-parametric correlations. The results show that the students' most affected parts of the body were the spine, the regions of the knees and head and neck and about 90% of the students presented postural misalignment. The lighting levels were usually found below 300 lux, below recommended levels. Such results indicate the need of investments in more suitable school furniture and structural reforms aimed at improving the lighting in the classrooms, which could fulfill the students' profile and reduce their complaints. 相似文献