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1.
Over the years, a growing body of evidence indicates that certain cognitive skills are a critical determinant of leader performance. In the present effort we show that application of these skills is typically founded in case-based knowledge. Subsequently, we identify nine key skills people in leadership positions employ when working with case-based knowledge to address leadership problems: 1) problem definition, 2) cause/goal analysis, 3) constraint analysis, 4) planning, 5) forecasting, 6) creative thinking, 7) idea evaluation, 8) wisdom, and 9) sensemaking/visioning. Individual and situational contingencies shaping effective application of these thinking skills is discussed. In addition, the implications of findings bearing on leader thinking skills for leader assessment and leader development are considered.  相似文献   
2.
This paper explores the idea of the ‘fourth age’ as a form of social imaginary. During the latter half of the twentieth century and beyond, the cultural framing of old age and its modern institutionalisation within society began to lose some of its former chronological coherence. The ‘pre-modern’ distinction made between the status of ‘the elder’ and the state of ‘senility’ has re-emerged in the ‘late modern’ distinction between the ‘third’ and the ‘fourth’ age. The centuries-old distaste for and fear of old age as ‘senility’ has been compounded by the growing medicalization of later life, the emergence and expansion of competing narratives associated with the third age, and the progressive ‘densification’ of the disabilities within the older institutionalised population. The result can be seen as the emergence of a ‘late modern’ social imaginary deemed as the fourth age. This paper outlines the theoretical evolution of the concept of a social imaginary and demonstrates its relevance to aging studies and its applicability to the fourth age.  相似文献   
3.
We present findings from an anthropological field study on the role of language and language policy in migration from Poland to Norway, and the larger implications for emerging language and immigration policy in Europe. Initial fieldwork in Norway found that Polish workers without knowledge of the Norwegian language struggled to secure employment in the formal economy. The 2008 financial crisis intensified competition in the labour market and underscored fluency in Norwegian as a means of discriminating among workers. Comparative case studies of language schools revealed that these organizations are active participants in channeling Polish migrants' movements into a segmented labour market, often in ways that involve cooperation between private companies and the State. We frame the Norwegian case within the larger context of Europe and the trend there toward favoring integration over multiculturalism. The emergence of restrictive language policies in Europe may be interpreted as a legally and culturally acceptable means for discouraging access to rights associated with permanent residency or citizenship by work migrants from CEE countries, while at the same time permitting them access to the labour market for temporary work. The long‐term consequences of such policies for European society are uncertain.  相似文献   
4.
Principal component analysis of indicators from the 1991 Census was used to characterise the social context of school age Welsh speakers in South East Wales. The area had been largely anglicised by the Census of 1971, but the growth of Welsh-medium education was responsible for net gains in numbers of younger Welsh/English bilinguals. Doubts as to whether young people will remain active bilinguals after leaving school have been raised. The inter-relationships between figures for Welsh speaking in the Census and other social indicators were examined. Being categorised as a young Welsh speaker was found to cut across an economic advantage/disadvantage dimension, and so was a matter of life style rather than a by-product of parental choices unrelated to language resurgence. Probing life styles by means of interviews where Welsh-medium and English-medium schools could be matched on the economic advantage/disadvantage dimension showed that deciding for Welsh-medium education was embedded in authentic local life styles. Although networks of people at more local spatial scales were involved in Welsh-medium education, they were linked to wider scale networks establishing domains for Welsh language use in the public sector and local government.  相似文献   
5.
Ageing abjection and embodiment in the fourth age   总被引:1,自引:0,他引:1  
This paper explores the role of abjection in understanding and interpreting the dichotomy between the ‘third’ and the ‘fourth’ age. We use Kristeva's term abjection to refer to a realm of decay, disease and impurity that embodies the capacity to disgust. While there is a longstanding tradition of representing the aged body as an object of disgust, recent cultural, economic and political changes have undermined the solidity and stability of age and its bodily signifiers. A new potential to transgress the abjection of a long life and an aged appearance has been matched however by an intensification of ‘real’ old age with even less capacity to transgress the abjection that is associated with frailty and the loss of agency and symbolized by the fourth age. Appeals to a universal ontology of human vulnerability and/or the redeeming influence of intimate care are considered as possible sources of protection from such abjection.  相似文献   
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7.
In recent years, high failure rates in phase III trials were observed. One of the main reasons is overoptimistic assumptions for the planning of phase III resulting from limited phase II information and/or unawareness of realistic success probabilities. We present an approach for planning a phase II trial in a time‐to‐event setting that considers the whole phase II/III clinical development programme. We derive stopping boundaries after phase II that minimise the number of events under side conditions for the conditional probabilities of correct go/no‐go decision after phase II as well as the conditional success probabilities for phase III. In addition, we give general recommendations for the choice of phase II sample size. Our simulations show that unconditional probabilities of go/no‐go decision as well as the unconditional success probabilities for phase III are influenced by the number of events observed in phase II. However, choosing more than 150 events in phase II seems not necessary as the impact on these probabilities then becomes quite small. We recommend considering aspects like the number of compounds in phase II and the resources available when determining the sample size. The lower the number of compounds and the lower the resources are for phase III, the higher the investment for phase II should be. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
8.
This essay explores how migration within the African continent is framed visually by passport photos as well as artistic documentary projects based in Johannesburg, South Africa. It offers examples of what type of photographic (self-)portraits are constructed, which photographs circulate and how African migrants’ self-images as well as South African society’s perception of them are affected by certain photographic images. The method employed is a close reading of some paradigmatic photographs. In addition, I will discuss different – and often gendered – ways in which African migrant subjects may become visible. In short, this essay asks, what photographic portraits construct the hegemonic view of the African migrant subject in the public sphere? Accordingly, the tension between visibility and invisibility of African migrants’ lives emerges in the interstices of the inquiry. The paper first looks at the taking of identity photographs, since the passport photo exemplifies how the individual is made visible by the nation state. It can simultaneously serve as a poignant reminder of the ambivalent qualities of photography: on the one hand, documenting and codifying, and on the other hand, creatively representing. In this context, the essay explores the possibility of remaining invisible or “opaque,” but also the conceivably more empowering representational aspect of photography such as we see in participatory (art) projects, which may be connected to the visual politics of self-expression and reflection.  相似文献   
9.
The initial discussion includes musings about learning community organization as a graduate student in social work during the late 1970s and subsequently practicing as a tenant organizer in the inner cities of New York City. Three major areas are addressed: (1) the tensions between educational models of practice and community organizing; (2) the critical role of the organizer in constructing the problem and shifting perceptions of power and; (3) how confrontations with legitimate channels of power can foster the development of oppositional consciousness and thus promote social justice efforts. This article argues for greater educational emphasis on the claimsmaking role of community organizers because problem construction is inextricably tied to definitions of power and thus to its redistribution to exploited classes.  相似文献   
10.
The conceptual and computational structure of a performance assessment (PA) for the Waste Isolation Pilot Plant (WIPP) is described. Important parts of this structure are (1) maintenance of a separation between stochastic (i.e., aleatory) and subjective (i.e., epistemic) uncertainty, with stochastic uncertainty arising from the many possible disruptions that could occur over the 10,000-year regulatory period that applies to the WIPP, and subjective uncertainty arising from the imprecision with which many of the quantities required in the analysis are known, (2) use of Latin hypercube sampling to incorporate the effects of subjective uncertainty, (3) use of Monte Carlo (i.e., random) sampling to incorporate the effects of stochastic uncertainty, and (4) efficient use of the necessarily limited number of mechanistic calculations that can be performed to support the analysis. The WIPP is under development by the U.S. Department of Energy (DOE) for the geologic (i.e., deep underground) disposal of transuranic (TRU) waste, with the indicated PA supporting a Compliance Certification Application (CCA) by the DOE to the U.S. Environmental Protection Agency (EPA) in October 1996 for the necessary certifications for the WIPP to begin operation. The EPA certified the WIPP for the disposal of TRU waste in May 1998, with the result that the WIPP will be the first operational facility in the United States for the geologic disposal of radioactive waste.  相似文献   
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