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   12194篇
  免费   354篇
  国内免费   2篇
管理学   1608篇
民族学   72篇
人才学   3篇
人口学   1134篇
丛书文集   73篇
理论方法论   1294篇
综合类   237篇
社会学   6433篇
统计学   1696篇
  2021年   58篇
  2020年   188篇
  2019年   285篇
  2018年   306篇
  2017年   435篇
  2016年   315篇
  2015年   230篇
  2014年   301篇
  2013年   1997篇
  2012年   405篇
  2011年   408篇
  2010年   315篇
  2009年   298篇
  2008年   310篇
  2007年   346篇
  2006年   330篇
  2005年   318篇
  2004年   302篇
  2003年   231篇
  2002年   271篇
  2001年   311篇
  2000年   278篇
  1999年   238篇
  1998年   193篇
  1997年   175篇
  1996年   173篇
  1995年   159篇
  1994年   175篇
  1993年   163篇
  1992年   170篇
  1991年   161篇
  1990年   164篇
  1989年   159篇
  1988年   140篇
  1987年   158篇
  1986年   125篇
  1985年   158篇
  1984年   171篇
  1983年   150篇
  1982年   129篇
  1981年   92篇
  1980年   118篇
  1979年   119篇
  1978年   105篇
  1977年   89篇
  1976年   90篇
  1975年   102篇
  1974年   96篇
  1973年   71篇
  1972年   62篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
221.
One indirect (PSQ) and two direct (CSQ-18B and ERS) measures of patient satisfaction were compared across a series of psychometric, acceptability, and concurrent validity criteria. None of the three measures was significantly related to health status or demographic characteristics. Each measure performed as expected from prior research on their psychometric properties. The scales contrasted, however, in regard to acceptability, with the PSQ being much less acceptable to patients than the other two. The PSQ also produced more missing data. The results on the PSQ reflected patient inconsistency on cross-check items and patients tended to be uncertain in their responses to many items. In multivariate analyses the three measures were used as predictors of patient-rated indices of global service satisfaction. The CSQ-18B and the ERS were significant predictors of patient-rated indices of global service satisfaction, whereas the PSQ was unrelated to these indices. It was concluded that the direct and indirect approaches measure different satisfaction domains. The PSQ likely assesses more generalized attitudes about health services while the CSQ-18B and the ERS efficiently reflect opinions about the specific setting in which they are administered.  相似文献   
222.
Population-to-practitioner ratios have long been the primary index in the designation of health manpower shortage areas. This paper documents that application of the widely used population-to-dentist index results in understatement of the need for dental health manpower in rural areas. Through the analysis of utilization data collected from a statewide health screening program in Colorado, the practice of sole reliance on the population-to-dentist indices as an indicator of need was tested. Another measure, the area-(square miles) to-dentist ratio was formulated, examined, and found to be a more useful referent of the need for additional health manpower in rural areas. Utilization of dental services in sparsely settled rural counties of Colorado was unrelated to population-to-dentist ratios. A strong, statistically significant association of utilization with land area-to-dentist ratios was found. The findings of this analysis suggest a need for reevaluation of needs assessment methodologies used in the designation of health manpower shortage areas. Indices more sensitive to consumer circumstance than to the number of health care providers available must be considered.  相似文献   
223.
Blacks, whites, and attitudes towards abortion   总被引:1,自引:0,他引:1  
This article examines patterns of black and white support forabortion from 1972 to 1980. The findings reveal that black-whitedifferences are present on the abortion issue. Many of the differencesare due to the different demographic characteristics of blacksand whites and the greater degree of religiosity of blacks.  相似文献   
224.
The author evaluates studies by Huw R. Jones and Russell King concerning the determinants of emigration from Malta and tests a new set of migration functions using cross-sectional and time-series data for the inter-censal years 1957 to 1967. Jones and King concluded that emigration was influenced more by socio-demographic factors than by economic forces. In the present article, the author concludes that economic factors did influence the decision to migrate from Malta. The policy implications of these findings are also considered. (summary in FRE, SPA)  相似文献   
225.
226.
Conclusion The foregoing analysis assessed ways that revolutions affected the social welfare of Latin Americans. It compared differences between societies of roughly similar levels of economic development that did and did not have revolutions, revolutions ushered in by different class alliances, revolutions instituting different modes of production, and revolutions occurring in countries differently situated within the world economy. The class transformations in Mexico, Bolivia, Cuba, and Peru gave rise to more egalitarian societies than they displaced, but low income groups in each country gained most during the new regimes' consolidation of power. Subsequently, the interests of the popular sectors were sacrificed to those of middle and upper income groups. The rural masses benefited from revolution mainly in conjunction with agrarian reforms.Agrarian reforms have been promulgated in all the countries under study, but a much larger proportion of the agrarian population and a much larger proportion of the farmland has been redistributed in the four countries that had political upheavals than in the paired countries that did not. Whereas all the land reforms perpetuate minifundismo, recipients of land titles enjoy a modicum of security and the opportunity to appropriate the full product of their labor, which rural wage workers and peasants dependent on usufruct arrangements do not.Examining the countries that have had revolutions shows that peasants and workers do not necessarily benefit most when they participate in the destruction of the old order. Peasants and rural farm laborers gained land where they were disruptive, but in Mexico only after a global Depression weakened the ability of large landowners to resist expropriation. The Peruvian experience demonstrates that rural laborers may benefit even if they are politically quiescent at the time of the extralegal takeover of power, and that they may, under certain conditions, gain benefits sooner after revolutions from above than after revolutions from below. The level of development of the economy and the way the societies have been integrated into the world economy historically limit what Third World revolutions can accomplish, quite independently of how the upheavals originated. The four revolutionary governments adapted land policies to property relations under the anciens régimes, and they reorganized agriculture to profit from trade. Global constraints have also been one factor restricting labor's ability to improve its earning power and influence over the organization of production. Labor did benefit from the upheavals, but as the postrevolutionary governments became concerned with attracting foreign investment and foreign financial assistance, and with improving profits from trade, labor was marginalized. The Mexican-Brazilian comparison, however, suggests that the middle class and the small proportion of workers employed in the oligopolistic sector benefit more and the richest 5% less in societies where civilian groups have been incorporated into the political apparatus as a result of revolution than in equally industrialized societies where they have been excluded, in the absence of revolution.Revolutionary-linked forces may modify the income generating effect of capitalist industrial dynamics, though not to the advantage of the lowest income earners.The dominant mode of production instituted under the new order is the aspect of revolution most affecting patterns of land and income distribution and health care. To the extent that ownership of the economy is socialized the state has direct access to the surplus generated. Although the Cuban state has not consistently allocated the resources it controls to low income groups, because the Castro regime need not provide a favorable investment climate, it can more readily redistribute wealth downward than can the capitalist regimes. It accordingly has also been freer to redesign the health care delivery system in accordance with societal needs rather than business interests and market power. But the Cuban experience suggests that the distributive effects even of socialist revolutions can be limited. Although socialism allows certain allocative options that capitalism does not, the capacity to improve the welfare of Third World people by any revolutionary means is constricted by the weak position of less developed nations within the global economy, by investment-consumption tradeoffs, and by internal political and economic pressures.  相似文献   
227.
We examine the effect of medical care and living conditions on children's physical and psychological well-being. We develop a causal model in which living conditions (including the socioeconomic status of the family and the social-psychological aspects of family functioning) may affect well-being both directly, and indirectly through medical care. We find that families in the higher social classes and families that function well tend to go to large prepaid groups where they receive good medical care. High quality technical care of illness, in turn, improves physical health. The quality of psychotherapeutic care, on the other hand, has no effect on psychological well-being. For this aspect of health, the effect of living conditions is largely direct, rather than indirect by way of medical care. Families characterized by high levels of functioning have children who are psychologically healthy. In addition, physical health affects psychological well-being, but not vice versa.  相似文献   
228.
229.
230.
Sex differences in three communication behaviors consistently found to be more common among females than males — smiling, gazing at one's partner, and sentence complexity — were examined through analysis of interviews with 78 institutionalized mentally retarded adults. While females were significantly more likely than males to smile or laugh, and tended to use longer, more complex sentences, the commonly observed sex difference in gazing failed to generalize to a retarded sample. These findings clarify limits on the generalizability of sex differences beyond college students and other normal populations.This research was partially supported by a grant to the Texas Tech University Research and Training Center in Mental Retardation from the Rehabilitation Services Administration, Department of Health Education, and Welfare.  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