首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   7958篇
  免费   110篇
管理学   1187篇
民族学   27篇
人口学   765篇
丛书文集   26篇
理论方法论   592篇
综合类   105篇
社会学   3373篇
统计学   1993篇
  2020年   117篇
  2019年   151篇
  2018年   217篇
  2017年   272篇
  2016年   190篇
  2015年   131篇
  2014年   191篇
  2013年   1315篇
  2012年   258篇
  2011年   241篇
  2010年   178篇
  2009年   170篇
  2008年   145篇
  2007年   183篇
  2006年   160篇
  2005年   161篇
  2004年   146篇
  2003年   143篇
  2002年   149篇
  2001年   197篇
  2000年   189篇
  1999年   172篇
  1998年   129篇
  1997年   126篇
  1996年   126篇
  1995年   107篇
  1994年   104篇
  1993年   97篇
  1992年   140篇
  1991年   119篇
  1990年   116篇
  1989年   111篇
  1988年   96篇
  1987年   90篇
  1986年   95篇
  1985年   107篇
  1984年   112篇
  1983年   123篇
  1982年   98篇
  1981年   88篇
  1980年   85篇
  1979年   94篇
  1978年   90篇
  1977年   80篇
  1976年   67篇
  1975年   67篇
  1974年   58篇
  1973年   58篇
  1972年   41篇
  1971年   49篇
排序方式: 共有8068条查询结果,搜索用时 15 毫秒
111.
A statistical estimation of the relationship between socioeconomic factors and net international migration in Western Europe from 1977 to 1980 is presented using data from the Monthly Bulletin of Statistics and the Statistical Yearbooks of the United Nations and each country. It is found that the rate of change in the gross national income, the percentage of the gross national income in the tertiary sector, and the number of automobiles per 1,000 inhabitants are the major factors affecting net migration in the most industrialized countries of Western Europe.  相似文献   
112.
113.
This article examines in depth the strategic implications for those States who have recently declared 200 mile off-shore resource management zones. The authors, in a comprehensive and stimulating paper, examine the implications of so-calling a nation's offshore limit. It is an appropriate name for a nation's offshore limit since the primary reason for many nations declaring a 200 mile limit has been the abundance of resources which have often been found within those limits either in the sea or the sea bed itself. This paper reviews the current background of off-shore resource management and outlines suitable roles for adoption by the coastal States in the management of their off-shore renewable and non-renewable resources. Furthermore, it examines the contentious but nonetheless central issue of the benefits and costs which accrue through coastal state jurisdiction. The authors also examine an appropriate resource management process and the implications of resource use conflicts within the off shore limit as well as defining these conflicts on the basis of ‘stakeholder’ interests and introduces a new concept of the maximization of economic equity amongst competing stakeholders. The problem remains that the measurement of economic equity perhaps leaves the States concerned within a situation of only having defined the problem; the political process has then to deal with any reallocation measures that may be deemed appropriate.  相似文献   
114.
The authors find little support for the view that televisedpresidential debates address the public's primary politicalconcerns. Though candidates speak directly to the public, andthe public is represented by journalists who question the candidates,the research suggests that never the "three shall meet." Basedon (I) content analysisof the Brst 1960 and 1976 presidentialdebates and (2) secondary analysis of survey data (Gallup andCPS), candidates, journalists, and public appear to have theirown separate issue agendas. Survey data in this paper were madeavailable by the Roper Center and the Inter-University Consortiumfor Political and Social Research, via the University of PennsylvaniaSocialScienceData Center. Data for 1976 were originally collected by theCenter for Political Studies of the Institute for Social Research,the University of Michigan, under a grant from the NationalScience Foundation. Neither the originalcollectors of the datanor the Consortium bear any responsibility for the analysesand interpretations presented here.  相似文献   
115.
The operation of the Equal Pay Act and recent pressures to end all discrimination against women in employment makes discussion of such discrimination timely. This article begins by examining the forms which discrimination may take place and presenting evidence of the extent to which it is happening. This is followed by a summary of relevant legislation and legislative proposals and an examination of the effects to date of the Equal Pay Act. In the last part of the paper a conceptual framework is suggested for approaching some of the economic problems raised by discrimination. It is suggested that while much light could be shed by economic analysis still remaining to be done, some of the most fundamental points lie in the field of the behavioural scientist rather than the economist.  相似文献   
116.
This article outlines the potential in the fishing industry viewed from the present. The author argues that current methods are still relatively inefficient and that increases of 50–100 per cent can be expected in the next 10–20 years. Further that these larger catches can contribute markedly to world protein requirements. The article includes consideration of system fishing and concludes with a picture of the British fishing industry being among the most advanced in the world.  相似文献   
117.
Summary In Matlab Bazaar Thana the Cholera Research Laboratory has registered the births, deaths and migrations in a population of approximately 125,000 since 1966. Although this rural area was not the scene of any significant armed encounters, striking changes in birth and death rates were registered during and after the conflict. Birth rates did not change during the relatively brief period of the civil war, but a small decline was registered for one year after the war. Fertility rates which had been declining slightly and irregularly in the pre-war baseline period may have increased slightly during the war and fell substantially in all age groups in the year following the war. The crude death rate, which rose by 37 per cent during the war, was a very sensitive reflection of the administrative and economic problems. Overall infant mortality rose by only 15 per cent over pre-war levels because all of the increase was observed in the post-neo-natal component, which traditionally accounts for less than one-third of the total infant mortality in Bangladesh. Children and older adults accounted for the majority of excess deaths which were largely attributed to acute diarrhoeas and other gastro-intestinal causes. The death rate at ages 1-4 rose by 43 per cent and at ages 5-9 soared to 208 per cent above pre-war baseline rates. All increases in age-specific mortality rates fell to baseline levels during the year following the war, except the 5-9-year age group, in which rates continued to be high largely because of deaths due to dysentery.  相似文献   
118.
Summary Ledermann's one- and two-parameter model life tables are used in order to summarize and compare adult mortality estimates derived from parental survival data, and also to link parental survival with child survival data. The Ledermann models provide an alternative to the logit model used by Brass and Hill. Examination of life tables derived from actual child and adult mortality estimates reveals that although the two types of models yield similar overall levels of mortality, they show marked differences in the estimated patterns by sex and age. It has not been possible to disentangle completely how much of this divergence is due to the models themselves and how much to inadequacies in the data available. Finally, we question whether it is always wise to establish a full life table from child and adult mortality estimates when these are based on data which refer to different periods of exposure to the risk of dying, without allowance for possible distortions resulting from mortality change.  相似文献   
119.
Data from an island-wide probability sample of 4119 Barbadian females aged 16-50 were used to study whether there has been an intergenerational fertility decline between the respondents and their mothers. The fertility of the respondents, all from the low or lower middle class, was significantly lower than that of their mothers. However, the size of the family of procreation was seen to be positively related to the size of the family of orientation; i.e., those from large families tended to have large families and vice versa. There was, however, a regression to the mean. There were no differences between women from small and large families as to fertility norms, age at 1st use of contraceptives, or actual practice of contraception. Women from small families did tend to enter sexual relationships and get pregnant at a later age. The women from small families were better educated, earned higher incomes, and had higher status occupations, all factors which might have influenced their fertility. Women from larger families cited higher numbers for both small and large families than did the women from small families. This indicates a perceptual difference which was, in turn, related to fertility differences.  相似文献   
120.
Editorial     
Ohne Zusammenfassung  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号