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71.
Despite the growing academic literature on the World Social Forum process, few scholars have attempted to systematically analyze the social, cultural, and political impact of the forums. This has to do in part with the inherent difficulties of assessing movement consequences, which is particularly complicated for an activity geared toward creating ‘open spaces.’ This article presents an analytic framework for evaluating the impact of the social forums through an analysis of the 2010 United States Social Forum (USSF) in Detroit from the perspective of a local Boston-based delegation called the Boston Freedom Rides. We then use that framework to consider the impact of the 2010 USSF, bridging the academic literature on movement outcomes with activist perspectives. We make two related claims. First, the social forums, and the USSF in particular, should be viewed and their impact assessed in light of their generativity as ‘movement-building machines’: infrastructures designed for the production of social capital, networks, solidarities, meanings, frames, identities, knowledges, strategies, skills, and repertoires. Second, with respect to the Freedom Rides, the 2010 USSF contributed to movement building on multiple levels, but more so within rather than across movement sectors. Our goal is less to make a definitive argument about the impact of the 2010 USSF than to provide a helpful way of thinking about movement building as a social movement outcome, which can be applied and refined through further comparative and longitudinal research. We thus favor breadth over depth in outlining a broad framework for future inquiry.  相似文献   
72.
73.
The current study examined associations between religiosity and sexual behaviors and attitudes during emerging adulthood. Two hundred and five emerging adults completed surveys about five aspects of their religiosity (group affiliation, attendance at religious services, attitudes, perceptions of negative sanctions, and adherence to sanctions) and their sexual behaviors (abstinence, age of onset, lifetime partners, condom use) and attitudes (conservative attitudes, perceived vulnerability to HIV, and condom‐related beliefs). Associations were found between the measures of religiosity and sexuality, although the patterns differed by measures used. Religious behavior was the strongest predictor of sexual behavior. Many aspects of religiosity were associated with general sexual attitudes, which was not the case for perceived vulnerability to HIV and condom‐related beliefs. The findings support reference group theory and highlight the importance of considering the specific constructs of religiosity and sexuality assessed in studies of these topics.  相似文献   
74.
Abstract

The H1N1 influenza A virus (A/USSR/90/77) appeared first in China, then spread to the United States in January 1978, causing significant outbreaks of influenza among younger age groups. Because college students were particularly affected, epidemiologic investigations were done to define the impact of illness on university populations.

We describe influenza outbreaks involving two college campuses (the Universities of Michigan and Colorado). At both schools, illness attack rates were significantly higher for students than for older faculty and staff members. At the two respective campuses, 25 and 36% of those ill who were surveyed sought medical care. Bed confinement averaged 3.8 days at one school (Michigan). At the other school (Colorado), ill students missed an average of 2.8 days of class. Influenza A (H1N1) virus was isolated from specimens from acutely ill students at both campuses.

These investigations illustrate the practical usefulness of college campuses as sites for monitoring the activity of influenza and other acute respiratory diseases.  相似文献   
75.
Conceptualization of national human resource development (NHRD) emphasizes that it is an ongoing development process of the individual that is shaped by context. However, the extant literature has focused primarily on describing and evaluating NHRD policies and interventions in different countries with limited consideration of NHRD across the lifespan and the interaction of life stage with context. Using ecological systems theory (EST) and a lifespan development perspective (LDP), we present a systematic review of the NHRD literature based on 310 sources. We identify key themes and gaps in research across the lifespan and at distinct levels of the ecological system. We build on this review to suggest future research informed by both EST and an LDP. We propose a future research agenda focused on several key areas, including: the developing individual as the primary focus of NHRD; the dynamic relationship between NHRD microsystems and how this evolves over time; the exosystem and macrosystem, which provide the context of the NHRD development experience for the individual over their lifespan; and the imperatives of directing research attention to top-down and bottom-up influences within the ecological system. We also propose three methodological innovations to address many of the questions raised by our review, drawing on national archive databases, the use of historical methods and a focus on longitudinal data analysis. Finally, we highlight the practical implications of our analysis for ecosystem and microsystem NHRD actors.  相似文献   
76.
As a fundamental social process, communication can help natural resource managers prevent or manage many human–wildlife conflicts, but research on how to present effectively information that contributes to the reduction of human–wildlife conflicts is scant. We examined the effectiveness of point-of-reference and gain-versus-loss framing in heightening intentions to prevent human–black bear conflicts. We randomly assigned 811 participants to one of six message conditions as part of a 3 (point of reference: family versus community versus bear) × 2 (message framing: gain versus loss) between-subjects factorial design or a control condition. The findings show that a match between loss framing and low-construal referencing point (e.g., family-referencing), and a congruency between gain framing and high-construal referencing point (e.g., bear-referencing) lead to higher risk perception and behavioral intentions. This study provides guidance for continuing research and design of risk communication in the context of human–bear conflicts.  相似文献   
77.
There has been an increasing interest in urban forests and the levels of biodiversity they contain. Currently there are no spatially explicit maps of tree species richness in urban areas. This research tests and identifies GIS and remote sensing metrics (climate, area, productivity, three-dimensional structure) hypothesized to be associated with species richness in native forests and identifies methods that can be applied to predict and map tree species richness in cities. We quantified tree species richness, floristic composition, and structure in 28 1-ha plots in the city of Los Angeles. Climate and remote sensing metrics from high-resolution aerial imagery (10 cm), QuickBird (60 cm), Landsat (30 m), MODIS (250 m), and airborne lidar (2 m) were collected for each plot. There were 1208 individual stems and 108 trees identified to species. Species richness ranged from 2 to 31 species per ha and averaged 17 species per ha. Tree canopy cover from QuickBird explained the highest portion of variance (54%) in tree species richness followed by NDVI from Landsat (42%). Tree species richness can be higher in residential urban forests than native forests in the United States. Spatially explicit species richness maps at 1 ha can be created and tested for cities in order to identify both hotspots and coldspots of tree species richness and changes in species richness over time.  相似文献   
78.
Social distress among West Virginia adolescents has many manifestations. Among the most conspicuous of these are dropping out of high school, teen pregnancy, and violent death. For more than 30 years, state policy makers have explained these behaviors by invoking the notion of a pervasive culture of poverty and morbidity which is transmitted from generation to generation. Participants in this primitive and fatalistic culture, it is commonly claimed, lack the prudence and foresight needed to make best use of the opportunities offered by our modern world. Education-intensive strategies aimed at enabling West Virginia adolescents and their families to overcome this disabling world view seem the best responses. By contrast, however, based on 8 years of empirical research in West Virginia, we contend that an “Oh, what the Hell!” sort of recklessness is interpretable as a rational response to deteriorating social and economic circumstances. West Virginia communities have become increasingly anomic and devoid of economic opportunity. In this economically uncertain, culturally insubstantial world, adolescents rightly judge their prospects to be poor. In this social context, seemingly irrational acts make more sense. Why be prudent in the absence of opportunity and community? Why be prudent in the absence of a future?  相似文献   
79.
In spite of increased attention to quality and efforts to provide safe medical care, adverse events (AEs) are still frequent in clinical practice. Reports from various sources indicate that a substantial number of hospitalized patients suffer treatment‐caused injuries while in the hospital. While risk cannot be entirely eliminated from health‐care activities, an important goal is to develop effective and durable mitigation strategies to render the system “safer.” In order to do this, though, we must develop models that comprehensively and realistically characterize the risk. In the health‐care domain, this can be extremely challenging due to the wide variability in the way that health‐care processes and interventions are executed and also due to the dynamic nature of risk in this particular domain. In this study, we have developed a generic methodology for evaluating dynamic changes in AE risk in acute care hospitals as a function of organizational and nonorganizational factors, using a combination of modeling formalisms. First, a system dynamics (SD) framework is used to demonstrate how organizational‐level and policy‐level contributions to risk evolve over time, and how policies and decisions may affect the general system‐level contribution to AE risk. It also captures the feedback of organizational factors and decisions over time and the nonlinearities in these feedback effects. SD is a popular approach to understanding the behavior of complex social and economic systems. It is a simulation‐based, differential equation modeling tool that is widely used in situations where the formal model is complex and an analytical solution is very difficult to obtain. Second, a Bayesian belief network (BBN) framework is used to represent patient‐level factors and also physician‐level decisions and factors in the management of an individual patient, which contribute to the risk of hospital‐acquired AE. BBNs are networks of probabilities that can capture probabilistic relations between variables and contain historical information about their relationship, and are powerful tools for modeling causes and effects in many domains. The model is intended to support hospital decisions with regard to staffing, length of stay, and investments in safety, which evolve dynamically over time. The methodology has been applied in modeling the two types of common AEs: pressure ulcers and vascular‐catheter‐associated infection, and the models have been validated with eight years of clinical data and use of expert opinion.  相似文献   
80.
Pathways to legal immigration   总被引:1,自引:0,他引:1  
In this paper we use the New Immigrant Survey Pilot Study (NISP) todescribe the amount and kind of experience that immigrants accumulate in the United States before they become permanent resident aliens. The NISP surveyed a representative sampleof legal immigrants who acquired residence papers during July and August of 1996, yielding a completed sample of 1,135 adults. Our analysis revealed that roughly two-thirds of thesenewly arrived immigrants had prior experience in the United States within one of six basic categories: illegal border-crossers, visa abusers, non-resident visitors, non-resident workers, students or exchange visitors, and refugees/asylees. Each of these pathways to legal immigration wasassociated with a different profile with respect to nationality, social background, and economic status. Using simple earnings regressions we demonstrate how these differences can yield misleading conclusions about the process of immigrant adaptation and assimilation, even if measured effects are reasonably accurate. We suggest that social scientists should changethe way they think and ask about immigrants' arrival in the United States.  相似文献   
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