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排序方式: 共有1345条查询结果,搜索用时 10 毫秒
41.
Margaret Alston 《Rural sociology》1995,60(3):521-532
Traditional definitions of farm work have been narrow and commodity-based, allowing the efforts of women to be discounted because they have not been viewed as directly contributing to production. This paper examines the structural gender arrangements that operate to render farm women powerless and to discount their contributions. Data are presented on the extent of women's economic contribution on Australian farms. 相似文献
42.
This analysis of International Business (IB) corruption literature identifies gaps and inconsistencies in how corruption is perceived or deliberated in top academic journals. The reviewed articles tend to focus on one of the three key themes of IB corruption (Contributing factors, Consequences, and Combating) and are categorised into the six sub-domains of the IB framework. The content of the articles is categorised into the respective themes and discussed in relation to underpinning theories and key constructs. The process is intended to be less a synthesis of the literature than an audit revealing that IB corruption research is weakened by tendencies to: 1) Be siloed within its subtheme and to not cross-tie to work in other key themes—this issue is very severe in the Combating theme; 2) Have a short-term focus that disregards the cumulative effects of total graft, and; 3) Asymmetrically focus (predominantly) on the supply side of corruption. These finding suggest several avenues for further research. 相似文献
43.
Kathleen S. Caffrey Bruce R. Wright Patricia L. Maarhuis 《Journal of American college health : J of ACH》2018,66(3):194-201
Objective: To examine the psychometric properties of a measure of cannabis-specific Protective Behavioral Strategies (PBS), which assesses ways in which students may reduce cannabis-related risk. Participants: Respondents to the American College Health Association – National College Health Assessment II (N = 580) during Spring 2015. Methods: Exploratory Factor Analysis (EFA) and Exploratory Structural Equation Modeling (ESEM) were used to identify and replicate the factor structure of the measure. Results: Results support a four-factor model (Respiratory Health, Frequency/Quantity, Socializing, and General Health) with close approximate fit (Χ2 (310) = 565.96, p < .001, RMSEA = .038 (.033, .043; 90% CI), CFI = .961, TLI = .929, SRMR = .033). Support for the convergent validity and construct validity of the measure was also found. Conclusions: This is the initial step in the development of a standard, psychometrically validated measure of cannabis PBS that has the potential to inform future research and interventions. 相似文献
44.
In quantitative trait linkage studies using experimental crosses, the conventional normal location-shift model or other parameterizations may be unnecessarily restrictive. We generalize the mapping problem to a genuine nonparametric setup and provide a robust estimation procedure for the situation where the underlying phenotype distributions are completely unspecified. Classical Wilcoxon–Mann–Whitney statistics are employed for point and interval estimation of QTL positions and effects. 相似文献
45.
Schmied V Cooke M Gutwein R Steinlein E Homer C 《Women and birth : journal of the Australian College of Midwives》2008,21(3):99-105
BACKGROUND: In Australia and internationally, women report high levels of dissatisfaction with hospital-based postnatal care. AIM: To design and implement strategies to improve hospital-based postnatal care at a Sydney metropolitan hospital. METHOD: This was an Action Research study. In Phase One, midwives considered the literature and participated in group discussions and interviews to determine their perceptions of postnatal care and the factors that facilitate or hinder the provision of quality care. In Phase Two, midwives participated in 12 working group meetings to design strategies to improve care. RESULTS: Several important principles of postnatal care were described, including building a relationship with women, meeting their individual needs, being flexible in approach and providing continuity of care. 'Listening to women', 'being there,' and 'normalising experiences and expectations' were believed to be critical to achieving these principles. A key strategy 'One to One Time' was designed to provide women with an uninterrupted period of time each day with a midwife who was available to listen to their needs and concerns and discuss issues related to their health and that of their baby. CONCLUSION: Midwives designed and implemented strategies that they believed would improve in-hospital postnatal care. 相似文献
46.
Employment and earnings of foreign-born scientists and engineers 总被引:1,自引:1,他引:0
Espenshade Thomas J. Usdansky Margaret L. Chung Chang Y. 《Population research and policy review》2001,20(1-2):81-105
Population Research and Policy Review - 相似文献
47.
Adolescent peer crowds such as Punks and Goths are mainly identified by their strikingly unusual or even shocking appearances. Although many studies find these crowds, few have tried to explain why some youths take on these startling or shocking appearances. We hypothesized that an off‐putting appearance is a way to cope with behavioral inhibition by limiting social contacts. Using data from 1,200 7th–11th graders, we compared peer crowds characterized by their startling appearance (“Radical” crowds) with three theoretically relevant comparison groups. Results showed that youths affiliating with Radical crowds were more inhibited than other youths, including those in crowds previously shown to be shy or socially anxious. Inhibited Radicals, however, had poorer emotional adjustment than inhibited youths in other crowds. If Radical styles are a way for inhibited youths to cope by limiting social contacts, the strategy does not seem to be beneficial for emotional adjustment. 相似文献
48.
Ecological research can augment restoration practice in urban areas degraded by invasive species—examples from Chicago Wilderness 总被引:1,自引:1,他引:0
Liam Heneghan Lauren Umek Brad Bernau Kevin Grady Jamie Iatropulos David Jabon Margaret Workman 《Urban Ecosystems》2009,12(1):63-77
Urban biodiversity conservation needs a firm scientific foundation, one that draws upon active and regionally calibrated research
programs. Until recently this foundation has not existed. In this paper we examine the way in which the emerging discipline
of restoration ecology in an urban context can learn from the experiences of ongoing restoration projects and in turn how
novel insights from research of urban soils can help these projects define and reach their goals. Limitations on collaboration
between academic researchers and practitioners continues be problematic. We discuss a model whereby this impediment may be
removed. A case study of Rhamnus cathartica, an invader of Midwestern woodlands which modifies some important soil ecosystem properties will be used to illustrate the
potential for engagement between research and practice. 相似文献
49.
Sabine S. Nooten Patrick Schultheiss Jules Wright Catriona Macdonald Brajesh K. Singh James M. Cook Sally A. Power 《Urban Ecosystems》2018,21(3):565-576
Recent concern over increasing loss of biodiversity has prompted considerable interest in the role of urban green spaces as reservoirs of local biodiversity. This study assessed the diversity of three indicator taxa - plants, ants and birds - on golf courses spanning a wide range of environmental variation in terms of climate, elevation, course age, size and connectivity to native woodland. Species richness and community composition was further compared between contrasting on-course habitat types that reflect different management intensities. We identified a set of taxon-specific environmental correlates indicating an intricate interplay of landscape- and local-scale variables that affect local species diversity. Our results show that floristic diversity is positively associated with the amount of rainfall, whereas ant and bird diversity are related to local-scale factors, particularly the number of trees and the size of water features on a site. The amount of on-course native habitat was a strong predictor of plant and ant diversity and was also associated with the number of unique species at the site level; this reinforces the value of remnant habitat patches as local biodiversity reservoirs that represent mini hot-spots in an otherwise species-poor urban landscape. Community composition for all three taxa differed markedly between non-playing and playing areas, with boundary and remnant habitats generally having more diverse, species-rich communities. Our results suggest that local floral and faunal biodiversity on urban golf courses can be enhanced by creating woody non-playing areas and, especially, by preserving, restoring or expanding remnant habitats. 相似文献
50.