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421.
To date no study has presented data which systematically considers the detailed activity of UK firms in joint venture formation over a significant period of time. This paper attempts to rectify this position by providing key statistics on the formation of joint ventures between UK firms and partner firms in Western Europe, the USA and Japan over the 1980s. The study examines several dimensions of activity: Trends in UK joint ventures over time, geographic distribution, industry characteristics, joint venture purpose, number of partners, contractual form and the equity share of UK partners.  相似文献   
422.
Discovering novel information can result in the generation of potentially valuable new ideas and can therefore be beneficial to organizations interested in innovation. To be useful, novel information must have a particular relationship to existing organizational knowledge. It must be far enough away to qualify as novel, but it must be close enough that it can be understood and exploited. Therefore, a key challenge for novel‐information discovery (NID) is to find concepts that have such relationships to a given starting point or focal concept of interest. Despite the potential benefits, organizations face a number of challenges when discovering novel information on the Web: locating it, understanding its relevance, and making sense of it given the constraints and biases of existing mental models. In this article, we develop an understanding of the challenges of NID and how a tool can support individuals in locating and translating novel information into novel ideas. Using a design science approach, we develop a design theory for NID. A prototype is developed and evaluated. Our findings show that an NID tool performs better than other Web search tools such as Google in terms of the perceived levels of novel information provided and radicalness of the ideas generated.  相似文献   
423.
Summary. Previously we have demonstrated that long-distance family migration has a negative effect on the employment status of partnered women in both Great Britain (GB) and the USA; in fact the results for GB and the USA were remarkably similar. Here we investigate three issues that might have masked potential differences in the results between GB and the USA. First, a decision needed to be made about the most appropriate cut-off to distinguish between short- and long-distance migration. Given the different size of the landmasses in GB and the USA it is questionable whether a similar distance cut-off should be adopted in both places. Second, a 1-year interval is used to define migrants in the GB census and a 5-year interval is used in the USA. The longer post-migration period, during which employment may be found, in the USA may have influenced our findings. Third, most 'tied migration' studies compare those in full- or part-time employment with the economically inactive and unemployed. However, individuals are economically inactive or unemployed for very different reasons and we therefore distinguish between these groups in the analysis.  相似文献   
424.
This research investigated the significance of primary orientations to volunteer work. Based on data from 745 volunteer ombudsmen in nursing facilities ( age, 69 years), hypotheses about relationships between background, social-psychological characteristics, in-service training, and four orientations (advocate, mediator, therapeutic supporter, and undifferentiated) were studied. Most ombudsmen identified a primary orientation, and their lives as volunteers were affected by this choice. Orientations of ombudsmen had demonstrable profiles that were differentiated by the resources persons brought to the task, how their skills were developed after they became volunteers, and their eventual strategies. Advocates were distinguished from others by their relative youth, formal education, in-service training, and greater hindrances. Perhaps extending traditional conceptions of gender roles, women more often practiced skills as therapeutic supporters. Those without a primary orientation had the most negative experiences.  相似文献   
425.
Relationships between perceived life satisfaction, poor mental health, suicide ideation and suicide behaviors were examined in a statewide sample of 13 to 18 year old public high school students (n = 4,758) using the self-report CDC Youth Risk Behavior Survey (YRBS). Adjusted logistic regression analyses and multivariate models constructed separately (via SUDAAN), revealed that poor mental health (past 30 days), poor mental/physical health (past 30 days) serious suicide consideration (past 12 months), planning for suicide (past 12 months), attempted suicide (past 12 months) and suicide attempt requiring medical care (past 12 months) were significantly related to reduced life satisfaction. Also, differences across gender and race were demonstrated. Measures of life satisfaction as a component of comprehensive assessments of adolescent mental health, suicide ideation and suicide behavior in fieldwork, research, and program-evaluation efforts should be considered.  相似文献   
426.
‘Did you see that,Mom?’: Social Looking in Three‐Year‐Old Boys   总被引:1,自引:0,他引:1  
This study examined social looking, defined as child‐initiated looking to a caregiver's face, in a sample of three‐year‐old boys and their mothers: 59.6% of boys looked to their mothers at least once over the course of emotion‐eliciting puppet show vignettes. Social looking occurred more often during puppet show events that were child‐focused and positive in valence. Boys’ social looking was related to their concurrent affective state, with more expressions of positive emotion looking associated with more social looks. Patterns of family emotionality predicted children's use of social looking. Specifically, a history of positive family expressiveness was associated with children's less frequent use of social looking, whereas a history of negative family expressiveness was associated with children's more frequent use of social looking.  相似文献   
427.
Abstract This case study is centered in northeast Washington State and northern Idaho and focuses on the social ecology of the wild edible huckleberry. The theoretical notion of social embeddedness is the lens through which the harvest and use of this much‐prized resource is viewed and analyzed. Using grounded theory as an over‐arching method, qualitative data were collected over two harvesting seasons regarding who harvests huckleberries in the study area and why. Four categories of use/users were identified. The results suggest a rich tapestry of social relations surrounding this resource that belies the simplistic notion of “commercial” vs. “recreational” use. These relations include temporal, geographic, economic, and cultural dimensions. Policy implications include the need to move beyond the commercial/recreational dichotomy in regulating the harvest of berries as well as the need to link the notions of community forestry and subsistence to the harvest of non‐timber forest products more generally.  相似文献   
428.
This paper is concerned with bringing together and drawing out some diverse strands of thought and action that are striving—from within a broadly green anti-capitalist agenda—to produce a rural space that is different from and a challenge to the mainstream trajectories that the production of the rural is taking in the global North. First, I outline the main elements of a new model for thinking about rural space in general that tries to incorporate three different facets of ‘space’ that have been teased out through geographical scholarship. This draws inspiration from work by Henri Lefebvre. After demonstrating this model in respect of the post-1945 productivist rural, I introduce it to debates about the emerging contours of the post-productivist countryside. Drawing predominantly on British examples, the second half of the paper develops one element within the heterogeneous potentiality of this post-productivism to consider some key aspects of what I term an example of ‘radical’ rural spatiality. This examines its perceived localities, conceived formal representations and partially lived everyday lives. The final main section gives brief consideration to opportunities now being presented to this radical rurality but also notes the considerable challenges that lie ahead.  相似文献   
429.
Keith Knight 《Econometric Reviews》2016,35(8-10):1471-1484
In a linear regression model, the Dantzig selector (Candès and Tao, 2007 Candès, E., Tao, T. (2007). The Dantzig selector: Statistical estimation when p is much larger than n. Annals of Statistics 35:23132351.[Crossref], [Web of Science ®] [Google Scholar]) minimizes the L1 norm of the regression coefficients subject to a bound λ on the L norm of the covariances between the predictors and the residuals; the resulting estimator is the solution of a linear program, which may be nonunique or unstable. We propose a regularized alternative to the Dantzig selector. These estimators (which depend on λ and an additional tuning parameter r) minimize objective functions that are the sum of the L1 norm of the regression coefficients plus r times the logarithmic potential function of the Dantzig selector constraints, and can be viewed as penalized analytic centers of the latter constraints. The tuning parameter r controls the smoothness of the estimators as functions of λ and, when λ is sufficiently large, the estimators depend approximately on r and λ via r/λ2.  相似文献   
430.
Current research on the impacts of the 2007 global economic crisis on international migration takes two different positions. Some studies emphasize the negative impacts while others are more positive. This article argues that these two positions offer simplistic interpretations which fail to take account of the complex micro‐level realities that determine migrant experiences. The article discusses how a small group of migrants from Guayaquil, Ecuador, accumulate and consolidate a complex portfolio of assets both before and during the economic crisis in Spain. Conceptualized in terms of an asset accumulation framework, and based on micro‐level longitudinal trend data, rather than the more generally used macro‐level snapshots or anecdotal evidence, the study highlights the fact that the formalization of legal status or citizenship is a crucial pre‐condition, which sets in motion a ‘virtuous’ cycle of consolidation of an interrelated portfolio of assets, regardless of the wider macro‐economic environment. Even if this turns into a ‘vicious’ cycle, for those losing jobs, to date Spanish welfare benefits have acted as a social protection mechanism.  相似文献   
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