全文获取类型
收费全文 | 613篇 |
免费 | 21篇 |
专业分类
管理学 | 158篇 |
民族学 | 2篇 |
人才学 | 1篇 |
人口学 | 92篇 |
丛书文集 | 2篇 |
理论方法论 | 43篇 |
综合类 | 1篇 |
社会学 | 228篇 |
统计学 | 107篇 |
出版年
2023年 | 7篇 |
2022年 | 6篇 |
2021年 | 6篇 |
2020年 | 21篇 |
2019年 | 19篇 |
2018年 | 22篇 |
2017年 | 22篇 |
2016年 | 25篇 |
2015年 | 12篇 |
2014年 | 21篇 |
2013年 | 103篇 |
2012年 | 19篇 |
2011年 | 28篇 |
2010年 | 11篇 |
2009年 | 7篇 |
2008年 | 19篇 |
2007年 | 16篇 |
2006年 | 10篇 |
2005年 | 14篇 |
2004年 | 11篇 |
2003年 | 10篇 |
2002年 | 16篇 |
2001年 | 13篇 |
2000年 | 13篇 |
1999年 | 5篇 |
1998年 | 7篇 |
1997年 | 8篇 |
1996年 | 6篇 |
1994年 | 4篇 |
1993年 | 3篇 |
1992年 | 3篇 |
1991年 | 6篇 |
1989年 | 4篇 |
1988年 | 11篇 |
1987年 | 7篇 |
1986年 | 2篇 |
1985年 | 11篇 |
1984年 | 9篇 |
1983年 | 7篇 |
1982年 | 8篇 |
1981年 | 7篇 |
1980年 | 5篇 |
1979年 | 8篇 |
1978年 | 6篇 |
1977年 | 9篇 |
1976年 | 10篇 |
1975年 | 12篇 |
1974年 | 10篇 |
1973年 | 10篇 |
1970年 | 3篇 |
排序方式: 共有634条查询结果,搜索用时 15 毫秒
101.
Despite the burgeoning literature on stakeholder green pressure, research is scarce on how it influences eco-product innovation and new product performance. This article examines stakeholder green pressures as antecedents of eco-product innovation and new product performance in firms operating in resource-constrained countries. Using data gathered from surveys in Vietnam (N = 183) and Ghana (N = 217), we find that the positive effects of stakeholder green pressures on new product performance are serially mediated by environmental sustainability orientation and eco-product innovation. Our findings contribute to ongoing efforts to clarify the mechanisms channelling stakeholder pressures into new product performance in resource-constrained environments. 相似文献
102.
While the need for and lack of implementation of more sophisticated methods for measuring the impact of public relations efforts has been well documented in the U.S. and some other world regions, relatively little information exist about this practice in the European Union. Results from a survey of both consumers and providers of public relations in the EU shows that perceptions of effectiveness and actual use are not related for most advanced techniques of measurement and evaluation. These results demonstrate some potentially important differences between the perceptions of providers and consumers that may support practitioner observations regarding a lack of interest among clients in more accurate assessment of results from public relations activities. 相似文献
103.
Chong You John T. Ormerod Samuel Müller 《Australian & New Zealand Journal of Statistics》2014,56(1):73-87
Variational Bayes (VB) estimation is a fast alternative to Markov Chain Monte Carlo for performing approximate Baesian inference. This procedure can be an efficient and effective means of analyzing large datasets. However, VB estimation is often criticised, typically on empirical grounds, for being unable to produce valid statistical inferences. In this article we refute this criticism for one of the simplest models where Bayesian inference is not analytically tractable, that is, the Bayesian linear model (for a particular choice of priors). We prove that under mild regularity conditions, VB based estimators enjoy some desirable frequentist properties such as consistency and can be used to obtain asymptotically valid standard errors. In addition to these results we introduce two VB information criteria: the variational Akaike information criterion and the variational Bayesian information criterion. We show that variational Akaike information criterion is asymptotically equivalent to the frequentist Akaike information criterion and that the variational Bayesian information criterion is first order equivalent to the Bayesian information criterion in linear regression. These results motivate the potential use of the variational information criteria for more complex models. We support our theoretical results with numerical examples. 相似文献
104.
□ A doubly nonstationary cylinder-based model is built to describe the dispersal of a population from a point source. In this model, each cylinder represents a fraction of the population, i.e., a group. Two contexts are considered: The dispersal can occur in a uniform habitat or in a fragmented habitat described by a conditional Boolean model. After the construction of the models, we investigate their properties: the first and second order moments, the probability that the population vanishes, and the distribution of the spatial extent of the population. 相似文献
105.
We provide the first global assessment of the sources of population aging by tracing its origins to the demographic histories of more and less developed countries. In more developed countries, improvements in survival among successive cohorts have accounted for the large majority of the recent increase in the population's mean age. Improved survivorship and declines in the growth rate of births have made roughly equal contributions to the aging that is occurring in less developed countries. Aging is more rapid in less developed countries because the number of births has declined faster, with China and India making large contributions. Use of the proportion of the population above age 65, 70, or 75 as measures of aging produces results similar to those using the mean age. Mortality decline becomes an even larger contributor to aging using all these measures, and its contribution grows as age advances. 相似文献
106.
Samuel Stroope 《Social indicators research》2012,105(3):499-518
Building on the implications of qualitative work from India and urbanism theories, I aim to understand whether religious bonding
social capital in contemporary India increases with greater urbanization and whether such increases are moderated by caste
or social class position. Results from multinomial logistic regression on 1,417 Hindu respondents in a nationally representative
sample of India (World Values Survey-India 2001) indicate that religious bonding is fostered by urbanism and that this association
is stronger for upper castes. But there is little evidence that social class similarly moderates the association between urbanism
and religious bonding. In light of these findings, religious bonding might be better understood as rooted in the interaction
of caste dynamics and changes in the urban environment, rather than as a result of greater affluence. The data are also consistent
with work underscoring the importance of disentangling social class and caste among Hindus in contemporary India. 相似文献
107.
Due to the poor performance of US students in international math and science tests, many authors worry that the US lead in science is in jeopardy. A recent study by Chen and Luoh (Soc Indic Res 96: 133–143, 2010) challenged this pessimistic view by delinking test performance and labor force quality. It was found that measures such as researchers per capita or scientific journal articles per capita can better account for economic performance. Because it takes time for education and R&;D to yield returns, this project replicated the preceding study using a time-lag structure. Although the results partly concur with previous findings, it is important to point out that GDP might depend on multiple variables acting together. Instead of solely focusing on reforming STEM education as partly measured by international test scores, improving the R&;D infrastructure and openness in trade could also be crucial to the future of the economy. 相似文献
108.
109.
Leonie J. Pearson Samuel Wilson Yoshihisa Kashima Dean Lusher Craig J. Pearson 《Policy Studies》2016,37(3):197-215
Over the past three decades, irrigation-dependent rural communities in Australia's Murray–Darling Basin have experienced profound economic, social and environmental changes, which they are attempting to accommodate through local government policy. As a contribution to participatory policy design research, in consultation with local governments we carried out focus groups to explore diversity of individuals’ imagined past and present in two rural communities. This was followed by group development of a diverse range of future scenarios and agreement to three likely scenarios. The research identified presence or absence of three underlying themes – irrigation, innovation and inflow of people – that plausibly drive change in these rural communities. These themes are likely to be common to many rural communities that have depended on irrigated agriculture. They provide an example of participatory policy-making, as distinct from the historically employed top-down policy development that has occurred in the Murray–Darling Basin. Because of the diversity of perceptions of past, present and futures, and the ultimate adoption of business-as-usual within the final local government plans, the research emphasises the need to put effort into community deliberations to build cohesion and share ownership of the process for delivering locally nuanced community policy. 相似文献
110.
Samuel T. Hunter Katrina E. Bedell-Avers Michael D. Mumford 《The Leadership Quarterly》2009,20(3):383-404
Revisiting the work of Weber [Weber, M. (1921). The theory of social and economic organizations. New York: Free Press], Mumford and colleagues (e.g., [Strange, J. M., & Mumford, M. D. (2002). The origins of vision: Charismatic versus ideological leadership. Leadership Quarterly, 13, 343?377; Mumford, M.D. (2006). Pathways to outstanding leadership: A comparative analysis of charismatic, ideological and pragmatic leaders. Mahwah, NJ: Erlbaum.]) explored the thesis that in addition to charismatic leadership, there exist at least two additional pathways to outstanding leadership: ideological and pragmatic. Despite the compelling results of initial studies, however, questions remain as to when and under what situational conditions these three leaders operate most effectively. As such, an experiment was conducted to investigate two noteworthy contextual influences: 1) situational congruence with a leader's mental model and 2) environmental complexity. The experiment made use of a computerized leadership simulation where participants took on the role of a university chancellor. Results indicate that leader type, complexity, and situational framing were critical factors in determining leader performance on multiple game performance criteria as well as creative process criteria. Implications and avenues for future research are discussed. 相似文献