全文获取类型
收费全文 | 92102篇 |
免费 | 2968篇 |
国内免费 | 3篇 |
专业分类
管理学 | 12645篇 |
民族学 | 554篇 |
人才学 | 25篇 |
人口学 | 7227篇 |
丛书文集 | 517篇 |
教育普及 | 1篇 |
理论方法论 | 9526篇 |
综合类 | 2153篇 |
社会学 | 43474篇 |
统计学 | 18951篇 |
出版年
2023年 | 513篇 |
2021年 | 574篇 |
2020年 | 1526篇 |
2019年 | 2215篇 |
2018年 | 2150篇 |
2017年 | 3231篇 |
2016年 | 2459篇 |
2015年 | 2069篇 |
2014年 | 2648篇 |
2013年 | 18908篇 |
2012年 | 2521篇 |
2011年 | 2334篇 |
2010年 | 2034篇 |
2009年 | 2212篇 |
2008年 | 2116篇 |
2007年 | 1938篇 |
2006年 | 2162篇 |
2005年 | 2317篇 |
2004年 | 2204篇 |
2003年 | 1934篇 |
2002年 | 2020篇 |
2001年 | 2077篇 |
2000年 | 1837篇 |
1999年 | 1738篇 |
1998年 | 1535篇 |
1997年 | 1381篇 |
1996年 | 1346篇 |
1995年 | 1366篇 |
1994年 | 1313篇 |
1993年 | 1304篇 |
1992年 | 1323篇 |
1991年 | 1254篇 |
1990年 | 1227篇 |
1989年 | 1060篇 |
1988年 | 1147篇 |
1987年 | 1012篇 |
1986年 | 919篇 |
1985年 | 1102篇 |
1984年 | 1156篇 |
1983年 | 1031篇 |
1982年 | 943篇 |
1981年 | 862篇 |
1980年 | 814篇 |
1979年 | 885篇 |
1978年 | 782篇 |
1977年 | 711篇 |
1976年 | 657篇 |
1975年 | 630篇 |
1974年 | 529篇 |
1973年 | 443篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
What do voters really know about party platforms and how do they perceive the contents? Are there any relationships between party election platforms and electoral behavior? Despite of much research on parties, there are hardly any answers to these questions. If political parties devise programmes in order to influence political attitudes or electoral behavior, it will be necessary that these programmes are read by people. But it seems to be unclear if and how people do so. This article shows clearly that voters don’t know much about party manifestoes. Still, programmes are more important for voters than many people believe. Programmes are also an important factor for electoral behavior. But there is still a lack of data to get evident results. 相似文献
122.
123.
Using an increasing returns specification for distribution, an inverted U pattern between the share of distribution in gross domestic product and the level of development is shown to arise. A cross-section time-series data set is constructed and merged with one used to analyze the service sector. In contrast to the rising pattern found for services, an average time-series relation that exhibits an inverted U pattern is established. The empirical results are robust, for example, to choice of functional form and country and time period coverage. A similar pattern is found in the average cross-section (country) relation between distribution and development. 相似文献
124.
Edward B. Barbier 《Economic inquiry》2002,40(3):508-519
Following North (1990), this article hypothesizes that effective rural institutions may impose additional costs on tropical deforestation through agricultural conversion. This allows a formal agricultural household analysis of institutional constraints on deforestation and therefore a method of empirically testing whether there is any significant difference in the actual level of forest land conversion under institutional constraints compared to the level of conversion under pure open access. A dynamic panel analysis for agricultural planted area in Mexico at state level and over the 1960–85 period confirms that institutional constraints on land clearing affected deforestation during the pre-NAFTA era. 相似文献
125.
In this essay we discuss changes in the cultural meaning and significance of time in postmodernism. We begin by examining the experience of time and space in the Middle Ages and its radical alteration following the Renaissance. After a relatively brief period of optimism during the Enlightenment regarding the scientific control over time and space, a new crisis beginning in the mid‐nineteenth century emphasized the increasing disjuncture between external, objective notions of time and the way time was experienced subjectively. We argue that the current literature on time and post‐modernity is best understood in this context, where earlier disequilibriating effects brought about by modern technologies are exacerbated by new developments in transportation and communications technology. Here we discuss the particular effects on topics of interest to social scientists such as changes in notions of personal identity and the effacement of historical time. We conclude with a call for more empirically grounded work on questions concerning time in postmodernism. We lament the paucity of concrete data as well as the excess of useless polemics and recommend several researchers already conducting work in this field. 相似文献
126.
This study tests a hypothesis that Mexican foreign‐born immigrants who came to the United States for economic reasons naturalize less often than Cubans who immigrate for political reasons. It uses information from the Panel Study of Income Dynamics, Latino Sample, a national sample of 7,453 respondents from the 1989 Latino National Political Survey (LNPS) and the 1990 Panel Study of Income Dynamics (PSID). Ordinal logistic regression is used to examine the hypothesis. The results indicate that while more Mexicans plan to apply or have applied for naturalization, proportionately more Cubans than Mexicans have naturalized. Cuban political immigrants who came to the United States during the first half of the 1960s naturalize more often than their Mexican counterparts. However, the effect of ethnic identity on naturalization is mediated by a number of other predictors of naturalization such as gender, race, urban residence, socioeconomic status and acculturation. 相似文献
127.
Sandra G. Turner Carol P. Kaplan Luis Zayas Ruth E. Ross 《Child and Adolescent Social Work Journal》2002,19(5):357-374
Epidemiological data show high rates of suicide attempts among adolescent Latinas. Few studies have addressed the psychosocial, cultural and family correlates of suicide attempts among this age group of a rapidly growing population. The authors studied 31 adolescent Hispanic females who were receiving mental health services; 14 girls had attempted suicide in the previous five years and 17 had never attempted suicide. The two groups of girls did not differ significantly with respect to demographic profiles, levels of depression, family type, acculturation, or self-esteem. However, as hypothesized, the mutuality between girls and their mothers was lower among suicide attempters. Maladaptive coping skills of withdrawal and wishful thinking were more commonly used by attempters, and non-attempters used emotional regulation and problem-solving more frequently. Findings are discussed within the context of the empirical and theoretical literature and implications for practice are considered. 相似文献
128.
129.
130.