全文获取类型
收费全文 | 12741篇 |
免费 | 213篇 |
专业分类
管理学 | 1645篇 |
民族学 | 51篇 |
人才学 | 1篇 |
人口学 | 1100篇 |
丛书文集 | 78篇 |
教育普及 | 2篇 |
理论方法论 | 1170篇 |
综合类 | 337篇 |
社会学 | 6354篇 |
统计学 | 2216篇 |
出版年
2021年 | 67篇 |
2020年 | 189篇 |
2019年 | 221篇 |
2018年 | 244篇 |
2017年 | 367篇 |
2016年 | 282篇 |
2015年 | 228篇 |
2014年 | 256篇 |
2013年 | 2052篇 |
2012年 | 394篇 |
2011年 | 318篇 |
2010年 | 211篇 |
2009年 | 234篇 |
2008年 | 261篇 |
2007年 | 278篇 |
2006年 | 217篇 |
2005年 | 350篇 |
2004年 | 298篇 |
2003年 | 258篇 |
2002年 | 269篇 |
2001年 | 314篇 |
2000年 | 297篇 |
1999年 | 309篇 |
1998年 | 209篇 |
1997年 | 204篇 |
1996年 | 214篇 |
1995年 | 188篇 |
1994年 | 204篇 |
1993年 | 177篇 |
1992年 | 236篇 |
1991年 | 232篇 |
1990年 | 211篇 |
1989年 | 219篇 |
1988年 | 194篇 |
1987年 | 185篇 |
1986年 | 189篇 |
1985年 | 174篇 |
1984年 | 207篇 |
1983年 | 200篇 |
1982年 | 165篇 |
1981年 | 137篇 |
1980年 | 140篇 |
1979年 | 166篇 |
1978年 | 136篇 |
1977年 | 119篇 |
1976年 | 102篇 |
1975年 | 101篇 |
1974年 | 95篇 |
1973年 | 93篇 |
1971年 | 64篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
Cuca R 《The Journal of social and political studies》1980,5(4):183-190
A recently completed World Bank statistical study of family planning in 63 developing countries indicated that countries which experienced a large decline in birth rates between 1960-1977 were more likely to have a family planning program, an official population policy aimed at decreasing the birth rate, and a relatively high level of development than countries which experienced smaller or no decline in birth rates. The 65 countries represented 95% of the population of the developing world. Birth rate declines of 10% or more between 1960-1977 were experienced by: 1) 10 of the 26 countries which had a family planning program and a policy aimed at reducing the birth rate; 2) 6 of the 19 countries which had a family planning program but lacked clearly defined population objectives; and 3) 2 of the 18 countries without any population policy or program. Furthermore, the implementation of a family planning program and the adoption of a population policy were directly related to the development level of the country. This finding suggested that countries need to reach a certain level of development before they have the capacity to develop population programs and policies. When a country is sufficiently advanced to collect population data, awareness of population problems increases and they are more likely to adopt a population policy. In addition, government efficiency increases as development proceeds and governments must have a certain level of efficiency before they can implement effective programs. 相似文献
993.
994.
When strong emotions are involved, people tend to focus on the badness of the outcome, rather than on the probability that the outcome will occur. The resulting “probability neglect” helps to explain excessive reactions to low-probability risks of catastrophe. Terrorists show a working knowledge of probability neglect, producing public fear that might greatly exceed the discounted harm. As a result of probability neglect, people often are far more concerned about the risks of terrorism than about statistically larger risks that they confront in ordinary life. In the context of terrorism and analogous risks, the legal system frequently responds to probability neglect, resulting in regulation that might be unjustified or even counterproductive. But public fear is itself a cost, and it is associated with many other costs, in the form of “ripple effects” produced by fear. As a normative matter, government should reduce even unjustified fear, if the benefits of the response can be shown to outweigh the costs. 相似文献
995.
C.R. Paton 《Social Policy & Administration》1989,23(1):92-98
The Office of Economic Opportunity (OEO), was created at the height of Lyndon Johnson's “Great Society” anti-poverty programmes. It represented a degree of radical activism that reached its culmination in the 89th Congress (1965-66) and indeed has never been repeated: that Congress was perhaps the only genuinely left-liberal one this century (outside the New Deal era, at any rate). The OEO's social policies were tied to a particular theory of public and social administration: that a “rival” federal agency to the existing ones (Health, Education and Welfare, now Health and Human Services; Housing, and Urban Development, et al) could escape their conservative norms. Both at the federal level and in the “field” agencies it spanned to implement its programmes, the new approach to social administration was to by-pass traditional channels. This short, illustrative rather than definitive article, examines how such an approach was undermined by both the U.S. political structure and by traditional “politics as usual”. It is but a snapshot of the era. However, it hints at the general problems that such approaches to “by-passing” traditional agencies and attempting to develop a new autonomy in social reform may have in many countries, especially those with decentralized political structures. For, while decentralized politics provides opportunities as well as barriers to reformers seeking to by-pass traditional elites (which themselves tend to be decentralized, mirroring political structures), it is suggested here that the balance sheet will tend to be negative from the viewpoint of reformist social administration. 相似文献
996.
997.
An attributional analysis of neonatal euthanasia was undertaken in two studies to compare the responsibility attributions of nursing and non-nursing students (Study 1) and nurses (Study 2) toward a physician for a critically ill neonate's death. In both studies, vignettes about a newborn's death differed with respect to the physician's treatment of the critically ill newborn. In the student study, the physician was attributed the least responsibility for the newborn's death when cardiopulmonary resuscitation was attempted but failed, followed by the physician's issuance of either a "Do Not Resuscitate" order or an order to turn off the infant's respirator. Greatest responsibility was attributed to the physician when he ordered the infant's nutritional and hydration support to be terminated. In addition, the student's major (nursing vs. non-nursing) and the nursing student's educational cohort impacted the level of physician responsibility attributed. In contrast, the nurses' study found that the termination of nutritional and hydrational support was viewed as different from the physician's other three actions. 相似文献
998.
Since the early 1970s the issue of euthanasia has been intensely debated in The Netherlands. Through these debates knowledge about medical practices involving the end of life was no longer confined to medical or legal quarters, but became public to a large extent. Following public opinion changes, the legal reaction to euthanasia changed. By prosecuting test cases the public prosecutors allowed the Dutch Supreme Court to formulate specific conditions in which euthanasia would go unpunished. The political debate about changing the criminal law, which still holds that euthanasia is a serious crime, developed at a much slower pace. Several extensive empirical studies were undertaken to gain valid knowledge about the medical practices. This article is concerned with a presentation of the various debates and the changes that took place in the fields of criminal law, politics, and medicine. The main conclusion is the hypothesis that a more open climate for medical practices concerning the end of life allows society to better control these practices. 相似文献
999.
Argentina is considered to be one of the most successful cases of structural reforms in Latin America, because of the extent and rapid pace of the reforms after the hyperinflationary process of 1989–1990. At the beginning of 1991, the convertible plan was launched and inflation fell sharply. However, even when the economy is growing fast, the problems in the labor market seem to worsen. Unemployment and underemployment have risen, and an increasing number of people have fallen out of normal work. The article analyzes how changes in labor markets are closely related to the transformation process in the economic system. After a summary of the situation before the crisis of the 1980s, the article analyzes the stabilization plans applied and then discusses the current dynamics of labor markets and the policies implemented to change labor regulations. Finally, some hypotheses about future scenarios are presented. 相似文献
1000.
The growing relative number, the improved economic well-being, and the migration of elderly retirees is not only reshaping the social and economic structure of many areas, it is also modifying both long-term and short-run patterns of economic growth. Transfer payments and property incomes, two of the most important source of elderly income, have been among the leading sources of national income growth over the past several decades. Unlike most labor-related industry sources of earnings, the level of transfer payments and property incomes received by the residents of the region is not directly dependent upon local economic activity. Consequently, as transfer payments and property incomes of elderly retirees become increasingly important sources of income and purchasing power within a region, they also can alter regional short-run cyclical patterns of income growth. This article examines the pattern of growth of transfer payments and property incomes in the context of national economic cycles, and explores the implication of those findings on metropolitan and nonmetropolitan Nevada economies. 相似文献