全文获取类型
收费全文 | 10149篇 |
免费 | 238篇 |
专业分类
管理学 | 1349篇 |
民族学 | 61篇 |
人才学 | 1篇 |
人口学 | 983篇 |
丛书文集 | 35篇 |
理论方法论 | 888篇 |
综合类 | 337篇 |
社会学 | 4474篇 |
统计学 | 2259篇 |
出版年
2023年 | 70篇 |
2022年 | 64篇 |
2021年 | 85篇 |
2020年 | 190篇 |
2019年 | 218篇 |
2018年 | 354篇 |
2017年 | 456篇 |
2016年 | 359篇 |
2015年 | 244篇 |
2014年 | 291篇 |
2013年 | 1764篇 |
2012年 | 490篇 |
2011年 | 311篇 |
2010年 | 251篇 |
2009年 | 225篇 |
2008年 | 262篇 |
2007年 | 234篇 |
2006年 | 185篇 |
2005年 | 234篇 |
2004年 | 205篇 |
2003年 | 249篇 |
2002年 | 258篇 |
2001年 | 238篇 |
2000年 | 207篇 |
1999年 | 195篇 |
1998年 | 148篇 |
1997年 | 121篇 |
1996年 | 134篇 |
1995年 | 112篇 |
1994年 | 105篇 |
1993年 | 108篇 |
1992年 | 132篇 |
1991年 | 122篇 |
1990年 | 118篇 |
1989年 | 109篇 |
1988年 | 116篇 |
1987年 | 114篇 |
1986年 | 106篇 |
1985年 | 125篇 |
1984年 | 98篇 |
1983年 | 105篇 |
1982年 | 75篇 |
1981年 | 74篇 |
1980年 | 70篇 |
1979年 | 76篇 |
1978年 | 78篇 |
1977年 | 56篇 |
1976年 | 46篇 |
1975年 | 61篇 |
1974年 | 49篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
81.
Korcelli P 《The International migration review》1992,26(2):292-304
"This article presents estimates of the size of emigration from Poland during the 1980s as well as projections concerning the migration patterns in the 1990s. The author anticipates a contraction of the volume of population outflow by some 50 percent: from about 100,000 to about 50,000 per year, on the average. These projections are based upon the examination of the role of a number of incentives and barriers to migration, including economic, demographic and political factors. In the final section, prospects concerning immigration to Poland are briefly discussed." 相似文献
82.
A comparison of the Korean minorities in China and Japan 总被引:1,自引:0,他引:1
Min PG 《The International migration review》1992,26(1):4-21
"This article compares the Korean minorities in China and Japan in their differential levels of cultural autonomy and ethnic identity....In explaining the differential levels of ethnicity between the two Korean minority groups, this paper focuses on the basic differences in minority policy between the two countries; the difference in the context of migration; the existence or absence of a territorial base; and the differential levels of influence from Korea." 相似文献
83.
Liebig PS 《Journal of aging & social policy》1992,4(1-2):17-33
Shifts in the American political landscape during the 1980s had impacts on aging policy and on the behavior of aging interest groups through that decade. But perhaps even more important are the likely effects of those changes on aging policy and on the roles of age-related groups in the 1990s--and probably beyond. First, some of the major policy trends of the 1980s are sketched out, especially the renewed emphasis on federalism. Then, an assessment of their effects on aging policy and aging interest groups is provided. Next, a rationale for focusing on state-level policy and a discussion of current aging interest-group mobilization at the state level are presented. Last, the prospects for aging interest-group influence in the 1990s--a period in which the prior decade's emphasis on dual federalism is likely to continue--is addressed. 相似文献
84.
85.
86.
Liu P 《Physician executive》1992,18(5):30-34
As hospital operations become increasingly complex, so does the institution's management and organizational structure. Physician executives with titles of medical director, vice president for medical affairs, medical administrator, chief of staff, medical staff president, etc., are playing more important roles than ever before. This article will briefly review some recent literature describing physician executive profiles. The results from a survey of ten university teaching hospitals are also presented as supplementary information regarding current staffing models. Finally, several physician executive staffing-related issues will be discussed in light of the literature and the survey results. 相似文献
87.
Gomuwka PK 《Physician executive》1992,18(1):37-40
Employers are more readily realizing that a nonsmoking policy in the workplace is a more effective way to run their businesses. They are recognizing costs such as productivity losses, increased health and life insurance costs, employer liability for diseases jointly linked to smoking and occupational exposures, absenteeism, passive smoking-induced health care costs among nonsmokers, workers' compensation, and fire losses. Concomitantly, employees are supporting policies that limit smoking to achieve a clean air environment. Former Surgeon General Koop's goal of "a smokefree society by the year 2000" is being recognized by more and more segments of society. 相似文献
88.
O'brien P 《The International migration review》1992,26(2):373-387
"This article examines past and present migrations to Germany from the perspective of nation-state formation.... Focusing on the many experiences with the Polish minority (ranging from the eighteenth century to the present), this essay suggests that Germans have never discovered an acceptable and workable approach for dealing with large non-German minorities in the German nation-state. Rather, different regimes at different times have vacillated between an exclusive approach founded on nationalist principles and practices and an inclusive one founded on liberal principles and practices.... The confusion over the two approaches produces not only a confused immigration policy, but also reflects deep-seated confusion over the definition of the new German state and identity of the newly united German nation." 相似文献
89.
"The study investigates the departure from Australia of former settlers who arrived during the 1980 calendar year. The 1980 settler arrival cohort [consists] of 75,167 visaed migrants.... The study has three main aims: (i) to analyse departures from Australia of the 1980 settler arrival cohort with a view to gauging the success of Australia's immigration program in retaining settlers; (ii) to examine the retention rates of settlers with respect to characteristics...including age, sex, marital status, country of last residence, and settler eligibility category; and (iii) to consider implications of the findings." Australia's present immigration policy is discussed, previous research on return migration from Australia is summarized, and a detailed analysis of the departure data is presented. "This study found that by August 1984, 12.4 per cent of non-refugee settlers who arrived in Australia during 1980 had departed permanently but that only 0.6 per cent of the 1980 refugee cohort had done so." These figures represent a decline in immigrant departure rates since the 1960s and early 1970s. Small differences in departure rates by place of birth, age, and marital status, which may have demographic consequences if sustained over time, are noted. (SUMMARY IN FRE AND SPA) 相似文献
90.
Pflaumer P 《Allgemeines Statistisches Archiv》1986,70(1):52-74
The aim of this paper is to describe several methods for quantifying the amount of uncertainty inherent in population forecasts used to assess the impact of demographic processes on social security systems. Each method is briefly outlined, and its advantages and disadvantages are discussed. The primary emphasis is on stochastic population models, and the geographic focus is on the Federal Republic of Germany. 相似文献