全文获取类型
收费全文 | 436篇 |
免费 | 22篇 |
专业分类
管理学 | 80篇 |
民族学 | 4篇 |
人口学 | 36篇 |
丛书文集 | 4篇 |
理论方法论 | 59篇 |
综合类 | 3篇 |
社会学 | 221篇 |
统计学 | 51篇 |
出版年
2023年 | 3篇 |
2022年 | 4篇 |
2021年 | 4篇 |
2020年 | 17篇 |
2019年 | 10篇 |
2018年 | 20篇 |
2017年 | 21篇 |
2016年 | 22篇 |
2015年 | 16篇 |
2014年 | 14篇 |
2013年 | 80篇 |
2012年 | 30篇 |
2011年 | 19篇 |
2010年 | 14篇 |
2009年 | 13篇 |
2008年 | 20篇 |
2007年 | 19篇 |
2006年 | 18篇 |
2005年 | 18篇 |
2004年 | 10篇 |
2003年 | 5篇 |
2002年 | 8篇 |
2001年 | 9篇 |
2000年 | 3篇 |
1999年 | 10篇 |
1998年 | 2篇 |
1997年 | 3篇 |
1996年 | 3篇 |
1995年 | 5篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 4篇 |
1991年 | 3篇 |
1990年 | 2篇 |
1988年 | 4篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 4篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1976年 | 1篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1972年 | 1篇 |
1970年 | 1篇 |
1965年 | 1篇 |
1964年 | 1篇 |
排序方式: 共有458条查询结果,搜索用时 312 毫秒
81.
Shahab E. Saqib Mokbul Morshed Ahmad Carmen Amezcua-Prieto 《The Social Science Journal》2018,55(3):313-322
Despite the availability of free medicines under the Directly Observed Treatment Short-course (DOTS) strategy, the treatment of tuberculosis (TB) still involves high costs that push people into poverty. This study aims to assess the resulting economic burden of TB and examine the coping mechanisms practiced at the household level in Pakistan. A cross-sectional study was conducted at TB centers by interviewing 269 patients. Statistical tests and binary logistic regression were used to explore the relationship between catastrophic health expenditures (CHE) and socio-economic factors. Results show that the incidence and intensity of CHE were higher for households in the lower income-quintile. Several coping strategies were practiced and varied among the different income-quintiles. The independent determinants of CHE were as follows: age >40 years, male-patient, location, earner-ratio, patient as the earner, caretaker visits, treatment delay, and co-morbidity. It is recommended that health policymakers develop post-MDGs TB-control strategies to ensure free TB-services with financial protection around the globe. 相似文献
82.
Isabel Cceres Maite Romn Carmen Moreno William M. Bukowski Jesús Palacios 《Social Development》2021,30(1):171-186
The aim of this study was to analyse the interpersonal relationships in the school context of children living in different care settings (adoptive families, residential care centres, birth families). Participants were 76 children between eight and fourteen years of age (M = 10.78, SD = 1.38), belonging to one of three groups: international adoptees, children living in residential care in Spanish institutions, and a comparison sample of Spanish children living with their birth families with no connection with child protection. Sociometric information was collected in the classroom of each child during school hours. Internationally adopted children from Russia showed considerable difficulties in their relationships with peers; they were more likely to be rejected and their peers described them as less prosocial and somewhat more aggressive. With a better sociometric position than the adoptees, children in residential care were rated by their peers as more aggressive and less prosocial than the normative population. Coordination and integrated work between the family, protection centres, schools, and other social services should be a strategic priority in the promotion of healthy social development in these groups of children. 相似文献
83.
84.
Social Indicators Research - Exploiting the human capital versus screening hypothesis frameworks, this paper studies the link between delayed graduation and overeducation, and their effect on... 相似文献
85.
86.
Yu Yan Dongxiao Yu Yuexuan Wang Jiguo Yu Francis C. M. Lau 《Journal of Combinatorial Optimization》2016,31(3):996-1012
More and more wireless networks and devices now operate on multiple channels, which poses the question: How to use multiple channels to speed up communication? In this paper, we answer this question for the case of wireless ad-hoc networks where information dissemination is a primitive operation. Specifically, we propose a randomized distributed algorithm for information dissemination that is very near the optimal. The general information dissemination problem is to deliver \(k\) information packets, stored initially in \(k\) different nodes (the packet holders), to all the nodes in the network, and the objective is to minimize the time needed. With an eye toward the reality, we assume a model where the packet holders are determined by an adversary, and neither the number \(k\) nor the identities of packet holders are known to the nodes in advance. Not knowing the value of \(k\) sets this problem apart from broadcasting and all-to-all communication (gossiping). We study the information dissemination problem in single-hop networks with bounded-size messages. We present a randomized algorithm which can disseminate all packets in \(O(k(\frac{1}{\mathcal {F}}+\frac{1}{\mathcal {P}})+\log ^2n)\) rounds with high probability, where \(\mathcal {F}\) is the number of available channels and \(\mathcal {P}\) is the bound on the number of packets a message can carry. Compared with the lower bound \(\varOmega (k(\frac{1}{\mathcal {F}}+\frac{1}{\mathcal {P}}))\), the given algorithm is very close to the asymptotical optimal except for an additive factor. Our result provides the first solid evidence that multiple channels can indeed substantially speed up information dissemination, which also breaks the \(\varOmega (k)\) lower bound that holds for single-channel networks (even if \(\mathcal {P}\) is infinity). 相似文献
87.
M. Carmen Sánchez 《Theory and Decision》1998,45(1):1-17
The rationalization of a choice function, in terms of assumptions that involve expansion or contraction properties of the feasible set, over non-finite sets is analyzed. Schwartz's results (1976), stated in the finite case, are extended to this more general framework. Moreover, a characterization result when continuity conditions are imposed on the choice function, as well as on the binary relation that rationalizes it, is presented. 相似文献
88.
Alfred Alumai Mark Grunkemeyer Joseph Kovach David J. Shetlar John Cardina Joseph Rimelspach Susan Clayton Parwinder S. Grewal 《Urban Ecosystems》2010,13(1):37-49
Human choices regarding land cover management practices may influence ecosystem services provided by urban green spaces. We
conducted a 2-year study to compare biological (weed, insect, and disease), aesthetic (lawn quality), and economic (lawn care
program cost) attributes of an integrated pest management (IPM) program, in which pesticides are applied on the basis of treatment
thresholds, with a standard program, in which pesticides are applied on a calendar basis without pest monitoring. Both programs
were managed by a professional lawn care operator. Although weed incidence was low, the IPM program had significantly more
lawns with weed presence than the standard program during 2005 and 2006. However, only 21% of the IPM lawns required herbicide
applications in 2005, and none exceeded the treatment threshold (5% weed cover) in 2006 as compared to 100% of the standard
program lawns being treated for weeds in both years. The IPM program also had significantly more lawns with insect damage
than the standard program during June 2005 and August 2005, but not September 2005 and throughout 2006. Only 28% of the IPM
lawns required insecticide applications in 2005 and none exceeded the threshold (5% insect damage) in 2006 whereas all of
the lawns in the standard program received insecticide treatments in both years. Rhizoctonia blight was present on some of
the lawns, but was not a common problem. Although lawn quality was high for both programs (>8, on a scale of 1–9), it was
significantly higher for standard than for IPM program lawns during 2005, and June 2006 and September 2006, but not August
2006. The annual lawn management costs were lower for the IPM (281.50) than the standard program (281.50) than the standard program (458.06). Thirty one percent
of the IPM program customers who continued with the study in 2006 did so because they were satisfied with the IPM program.
Among those who did not continue with the program, 33% cited weed or insect problems, while 33% expected better results. The
implications of these findings for implementation of IPM in professional lawn care are further discussed. 相似文献
89.
Steffen Andersen Glenn W. Harrison Morten I. Lau E. Elisabet Rutstrm 《Econometrica : journal of the Econometric Society》2008,76(3):583-618
We design experiments to jointly elicit risk and time preferences for the adult Danish population. Since subjects are generally risk averse, we find that joint elicitation provides estimates of discount rates that are significantly lower than those found in previous studies and more in line with what would be considered as a priori reasonable rates. The statistical specification relies on a theoretical framework that involves a latent trade‐off between long‐run optimization and short‐run temptation. Estimation of this specification is undertaken using structural, maximum likelihood methods. Our main results based on exponential discounting are robust to alternative specifications such as hyperbolic discounting. These results have direct implications for attempts to elicit time preferences, as well as debates over the appropriate domain of the utility function when characterizing risk aversion and time consistency. 相似文献
90.
Practitioners and scholars have grown increasingly interested in recent decades in how public administrators should and can
work with the constituencies they serve. To date, most of this conversation has focused on citizens and broader communities
rather than on stakeholders more generally, but these other stakeholders, ranging from oversight policy-making bodies to private
sector and nonprofit contractors to governmental partners, are no less important than the general public. The purpose of this
paper is to propose a first step that many agencies might take in thinking about their range of stakeholders, a step that
we term a “stakeholder audit.” A stakeholder audit entails (1) mapping the universe of an agency’s stakeholders, (2) assessing
the agency’s perceived needs for additional information relative to various stakeholder groups, and (3) developing suggestions
on how to obtain that information. After first discussing the more general idea of stakeholder analyses, we describe the stakeholder
audit technique, and illustrate how it has been applied to a particular agency, the State of Georgia’s Department of Transportation.
We conclude by considering how a stakeholder audit could represent a first step for an agency in improving relationships with
its stakeholders.
相似文献
John Clayton ThomasEmail: |