全文获取类型
收费全文 | 1812篇 |
免费 | 99篇 |
专业分类
管理学 | 233篇 |
民族学 | 16篇 |
人才学 | 1篇 |
人口学 | 164篇 |
丛书文集 | 11篇 |
理论方法论 | 249篇 |
综合类 | 20篇 |
社会学 | 1004篇 |
统计学 | 213篇 |
出版年
2023年 | 13篇 |
2022年 | 15篇 |
2021年 | 14篇 |
2020年 | 51篇 |
2019年 | 64篇 |
2018年 | 60篇 |
2017年 | 88篇 |
2016年 | 76篇 |
2015年 | 48篇 |
2014年 | 66篇 |
2013年 | 315篇 |
2012年 | 79篇 |
2011年 | 74篇 |
2010年 | 55篇 |
2009年 | 48篇 |
2008年 | 59篇 |
2007年 | 55篇 |
2006年 | 76篇 |
2005年 | 59篇 |
2004年 | 46篇 |
2003年 | 46篇 |
2002年 | 37篇 |
2001年 | 36篇 |
2000年 | 28篇 |
1999年 | 34篇 |
1998年 | 24篇 |
1997年 | 23篇 |
1996年 | 25篇 |
1995年 | 19篇 |
1994年 | 22篇 |
1993年 | 18篇 |
1992年 | 15篇 |
1991年 | 12篇 |
1990年 | 10篇 |
1989年 | 15篇 |
1988年 | 6篇 |
1987年 | 13篇 |
1986年 | 10篇 |
1985年 | 16篇 |
1984年 | 8篇 |
1983年 | 14篇 |
1982年 | 8篇 |
1981年 | 11篇 |
1980年 | 17篇 |
1979年 | 11篇 |
1978年 | 14篇 |
1977年 | 8篇 |
1976年 | 13篇 |
1975年 | 9篇 |
1974年 | 11篇 |
排序方式: 共有1911条查询结果,搜索用时 31 毫秒
1.
Philip Taylor 《Asian Ethnicity》2002,3(1):85-102
This article examines the reasons for the popularity of spirits of different ethnic backgrounds in the southern Vietnamese plain. The official approach is to induct the cults to these spirits into defence of the nation and its culture, a construct which privileges ethnic Kinh views of history. However, the 'Lady of the Realm', a goddess in the Mekong delta, illustrates the more complex ethnicity of this symbolism. Popular views denying her Khmer origins naturalise the Vietnamese colonisation of Cambodian lands. A preferred lineage in some quarters is to regard her as Cham, a view which disputes a more popular view of her as a Chinese belief, particularly influential in circles where ethnic Chinese business practices have become the norm. This play of interpretations indicates that conventional motifs of cultural resistance or survival are inadequate to understanding religious symbols which speak to the more complex identity of this region of the country. 相似文献
2.
Polynomial spline regression models of low degree have proved useful in modeling responses from designed experiments in science and engineering when simple polynomial models are inadequate. Where there is uncertainty in the number and location of the knots, or breakpoints, of the spline, then designs that minimize the systematic errors resulting from model misspecification may be appropriate. This paper gives a method for constructing such all‐bias designs for a single variable spline when the distinct knots in the assumed and true models come from some specified set. A class of designs is defined in terms of the inter‐knot intervals and sufficient conditions are obtained for a design within this class to be all‐bias under linear, quadratic and cubic spline models. An example of the construction of all‐bias designs is given. 相似文献
3.
4.
In 1985, the National Institute on Drug Abuse (NIDA) funded an ethnographic research project in San Francisco to study the needle sharing behavior of injection drug users (IDUs). The goal of the research was to develop a strategy to slow the spread of HIV among this hidden and hard to reach population of drug users and their sexual partners. This small-scale project grew into a model intervention in which bleach, condoms, and street-based education by outreach workers were employed to inform IDUs of the risk of AIDS and of methods for protecting themselves. The "reach and teach bleach" model was adopted by NIDA and implemented in a number of American cities. This study describes the development of the model intervention, the adoption of the model by NIDA as part of its National AIDS Demonstration Research (NADR) project, and the political circumstances under which the city of San Francisco applied for the NADR grant. Drawing on Social Worlds/Arena theory, and based on extensive interviews and participant observation, a sociohistorical analysis examines the initial development, implementation, and disintegration of the model outreach project and the impact of the program on drug policy in the city of San Francisco. 相似文献
5.
The present studies examined children's and adults' preferences for gender- or age-based categorization using similarity and inductive inference tasks. Four-year-olds, 6-year-olds, and adults looked at pictures of people and decided which of two was more like a target (similarity condition) or which shared a novel age- or gender-related property with the target (inference condition). Age or gender-based matches were possible. The results are consistent with previous findings that gender-based classification decreases with age. However, they also demonstrate that children use gender more for judging similarity than for making inferences about novel properties. Distinct patterns emerge from the two tasks: 6-year-olds and adults in both conditions categorize more by age than gender; 4-year-olds categorize by gender more than age in the similarity task, but by age more in the induction task. Only adults differentiated by property in the inference condition. These findings suggest that the salience of gender categories cannot entirely be attributed to their inductive potential. Gender has a salience beyond what would be predicted by its power for directing novel generalizations. 相似文献
6.
Sarah Brown Karl Taylor 《Journal of the Royal Statistical Society. Series A, (Statistics in Society)》2008,171(3):615-643
Summary. We explore the determinants of debt, financial assets and net worth at the household level by using survey data for Germany, Great Britain and the USA. To identify which households are potentially vulnerable to adverse changes in the economic environment, we also explore the determinants of a range of measures of financial pressure: the probability that a household has negative net worth; the debt-to-income ratio; mortgage income gearing; the saving-to-income ratio. Our empirical findings suggest that the poorest and the youngest households are the most vulnerable to adverse changes in their financial circumstances. 相似文献
7.
While shows like The X-Files and 24 have merged conspiracy theories with popular science (fictions), some video games have been pushing the narrative even further. Electronic Art's Majestic game was released in July 2001 and quickly generated media buzz with its unusual multi-modal gameplay. Mixing phone calls, faxes, instant messaging, real and "fake' websites, and email, the game provides a fascinating case of an attempt at new directions for gaming communities. Through story, mode of playing, and use of technology, Majestic highlights the uncertain status of knowledge, community and self in a digital age; at the same time, it allows examination of alternative ways of understanding games' role and purpose in the larger culture. Drawing on intricate storylines involving government conspiracies, techno-bio warfare, murder and global terror, players were asked to solve mysteries in the hopes of preventing a devastating future of domination. Because the game drew in both actual and Majestic-owned/-designed websites, it constantly pushed those playing the game right to borders where simulation collides with " factuality'. Given the wide variety of "legitimate' conspiracy theory, alien encounters and alternative science web pages, users often could not distinguish when they were leaving the game's pages and venturing into " real' World Wide Web sites. Its further use of AOL's instant messenger system, in which gamers spoke not only to bots but to other players, pushed users to evaluate constantly both the status of those they were talking to and the information being provided. Additionally, the game required players to occupy unfamiliar subject positions, ones where agency was attenuated, and which subsequently generated a multi-layered sense of unease among players. This mix of authentic and staged information in conjunction with technologically mediated roles highlights what are often seen as phenomenon endemic to the Internet itself; that is, the destabilization of categories of knowing, relating, and being. 相似文献
8.
D. Eric Schansberg 《Economic inquiry》1994,32(3):445-456
Despite extensive study concerning involuntary departures by U.S. House members, little has been said about voluntary departures from the House–-quit behavior. This paper has three primary purposes: (1) to establish a theoretical framework that models the full range of choices a representative faces in any given term, (2) to measure the impact of different variables that affect representatives' quit behavior, and (3) to explain why Republicans have been more likely to pursue higher office than their Democratic colleagues. 相似文献
9.
Casey Crump Kenny Crump Eric Hack Rose Luippold Kenneth Mundt Elizabeth Liebig Julie Panko Dennis Paustenbach Deborah Proctor 《Risk analysis》2003,23(6):1147-1163
This study evaluates the dose-response relationship for inhalation exposure to hexavalent chromium [Cr(VI)] and lung cancer mortality for workers of a chromate production facility, and provides estimates of the carcinogenic potency. The data were analyzed using relative risk and additive risk dose-response models implemented with both Poisson and Cox regression. Potential confounding by birth cohort and smoking prevalence were also assessed. Lifetime cumulative exposure and highest monthly exposure were the dose metrics evaluated. The estimated lifetime additional risk of lung cancer mortality associated with 45 years of occupational exposure to 1 microg/m3 Cr(VI) (occupational exposure unit risk) was 0.00205 (90%CI: 0.00134, 0.00291) for the relative risk model and 0.00216 (90%CI: 0.00143, 0.00302) for the additive risk model assuming a linear dose response for cumulative exposure with a five-year lag. Extrapolating these findings to a continuous (e.g., environmental) exposure scenario yielded an environmental unit risk of 0.00978 (90%CI: 0.00640, 0.0138) for the relative risk model [e.g., a cancer slope factor of 34 (mg/kg-day)-1] and 0.0125 (90%CI: 0.00833, 0.0175) for the additive risk model. The relative risk model is preferred because it is more consistent with the expected trend for lung cancer risk with age. Based on statistical tests for exposure-related trend, there was no statistically significant increased lung cancer risk below lifetime cumulative occupational exposures of 1.0 mg-yr/m3, and no excess risk for workers whose highest average monthly exposure did not exceed the current Permissible Exposure Limit (52 microg/m3). It is acknowledged that this study had limited power to detect increases at these low exposure levels. These cancer potency estimates are comparable to those developed by U.S. regulatory agencies and should be useful for assessing the potential cancer hazard associated with inhaled Cr(VI). 相似文献
10.