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691.
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   
692.
This article draws on a 1 year ethnographic study of the process of teacher training from an inclusive position and that of general postgraduate training. Student teachers elected either to teach a given subject or to train in 'inclusive education' which aims to accommodate all learners, regardless of the notion of 'disability' or other forms of difference. The inclusive position challenges the notion of 'difference' and invites examination into how educational policy has the potential to enforce oppressive norms. The research reported here illustrates how socially constructed norms in relation to behavior and achievement are reproduced in the classroom. Ethnographic data demonstrates how educational philosophy is delivered to student teachers that supports either exclusive or inclusive strategies of teaching. The political environment that student teachers are immersed in is examined, together with documentation of the process of training and its inherent politics. Reflective points include how the political environment which teaching is delivered simultaneously creates and enforces dominant discourses of difference. Critical reflection on this research suggests that those involved in inclusive approaches to education need to be vigilant against the inclusive argument becoming a mantra.  相似文献   
693.
‘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   
694.
Previous research has reported strong consumer perception that genetically modified (GM) food crops may lead to adverse outcomes in a number of different areas. This is despite the widespread promulgation of the potential benefits and opportunities ascribed to the same technology by many scientists and other experts. A computer-based information gathering and evaluation task was completed by 198 adults to assess the extent to which their initial focus on the dangers or opportunities of genetic modification, or both, could be ascribed to the manner in which they gathered information on the topic (heuristically vs. systematically). Results did not confirm the hypothesis that initial focus (risks, benefits, or both) predicted ongoing information gathering and evaluation behavior. Moreover, also contrary to prediction, most participants primarily used systematic strategies when deriving their initial position, regardless of that opinion. Participants found it difficult to achieve a balanced perspective on GM food crop, even though balanced argument, as measured by order of story selection and time spent reading, was preferred as the source of information. Perceived importance is probably the most influential variable determining information gathering about issues or events to which a level of risk is attached.  相似文献   
695.
This article introduces the concept of behavioral probabilities, along with an econometric procedure for jointly estimating these probabilities as well as individual utility functions. Behavioral probabilities that guide decisions differ from posterior probabilities that are reported after receiving risk information. The underlying process that generates behavioral probabilities reflects a behavioral anomaly as the new risk information takes on an excessive role. While utility function estimates are consistent with theoretical predictions, considering behavioral probabilities alters their implications. Viscusi's research is supported by the Olin Center for Law, Business, and Economics.  相似文献   
696.
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   
697.
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   
698.
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   
699.
This study evaluated health benefits of a supported physical activity program for 116 older carers (mean age 64.4 [SD = 7.9], 85% women). Participants undertook a 6-month center-based physical activity program (strength training, yoga, or Tai Chi). Eighty-eight participants (76%) completed the program. Multivariate repeated-measures ANOVA identified overall significant improvement postintervention (p = .004). Univariate analyses revealed significant improvements for balance, strength, gait endurance, depression, and SF-36 (physical component; p < .05). There was no change in the Zarit Carer Burden Scale (p > .05). Change in performance scores did not differ significantly between those with higher and lower attendance at classes, although there was significantly greater improvement in gait endurance and balance (p < .05) in those attending classes run twice weekly than in those attending once-weekly classes. In conclusion, a carer physical activity program, providing additional carer support to facilitate participation, can achieve high levels of involvement by carers and significant health benefits.  相似文献   
700.
Five elements are cited as being critical for a university-based retirement communities’ (UBRCs’) success: proximity to the university, two-directional programming, continuing care, a financial link to the university, and a minimum 10% resident connection to the university. We illustrate these criteria using examples from existing UBRCs. The comparisons are then contextualized in the broader framework of Social-Physical Place Over Time (SPOT) theory. SPOT theory focuses on the interactions between social and physical places among older adults. By analyzing the intersections between SPOT theory and UBRC criteria, we identify additional criteria to improve the definition of a UBRC: transportation support and facilitating activity. UBRCs offer value because they provide the social and physical place where older adults can live when they retire, thereby improving changes in individual agency and belongingness needs, which are key tenets of SPOT theory. The integration of the UBRC criteria and the SPOT theory framework builds on this relatively new meta-theory in environmental gerontology. SPOT theory effectively highlights how UBRCs benefit older adults and the community; UBRCs provide significant benefits not only to older adult residents, but also to the university communities that house them.  相似文献   
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