全文获取类型
收费全文 | 11407篇 |
免费 | 196篇 |
专业分类
管理学 | 1656篇 |
民族学 | 64篇 |
人才学 | 2篇 |
人口学 | 1030篇 |
丛书文集 | 63篇 |
理论方法论 | 1023篇 |
综合类 | 303篇 |
社会学 | 5141篇 |
统计学 | 2321篇 |
出版年
2021年 | 74篇 |
2020年 | 145篇 |
2019年 | 202篇 |
2018年 | 238篇 |
2017年 | 334篇 |
2016年 | 278篇 |
2015年 | 225篇 |
2014年 | 246篇 |
2013年 | 2017篇 |
2012年 | 382篇 |
2011年 | 321篇 |
2010年 | 260篇 |
2009年 | 228篇 |
2008年 | 298篇 |
2007年 | 282篇 |
2006年 | 212篇 |
2005年 | 283篇 |
2004年 | 261篇 |
2003年 | 297篇 |
2002年 | 338篇 |
2001年 | 296篇 |
2000年 | 268篇 |
1999年 | 243篇 |
1998年 | 198篇 |
1997年 | 168篇 |
1996年 | 172篇 |
1995年 | 165篇 |
1994年 | 149篇 |
1993年 | 154篇 |
1992年 | 166篇 |
1991年 | 168篇 |
1990年 | 154篇 |
1989年 | 139篇 |
1988年 | 167篇 |
1987年 | 168篇 |
1986年 | 129篇 |
1985年 | 160篇 |
1984年 | 141篇 |
1983年 | 161篇 |
1982年 | 103篇 |
1981年 | 107篇 |
1980年 | 97篇 |
1979年 | 108篇 |
1978年 | 115篇 |
1977年 | 83篇 |
1976年 | 81篇 |
1975年 | 88篇 |
1974年 | 66篇 |
1973年 | 57篇 |
1972年 | 57篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
Mark J. Miller Nancy P. Newell Thomas P. Springer Don Wells 《The Career development quarterly》1992,40(4):334-339
The Self-Directed Search was administered to 68 university seniors who were majoring in Chemistry/Chemical Engineering, Elementary Education, and Office Administration. Their resulting three-letter summary codes were compared with three-letter college major codes obtained from the College Majors Finder. A high degree of agreement between the two sets of codes was found for each of the three majors. Effective methods for matching people to jobs have held the interest and occupied much time for career counselors and vocational theorists since the inception of the trait-factor approach to career counseling. More recently, Holland (1985a) broadened and clarified matching procedures through the development of his typological theory of vocational choice. Just as personality types and occupational environments have been organized using Holland's framework to foster an understanding of occupational choice, Holland's theory can also be used to explain other types of choices, such as choice of a college major. 相似文献
52.
V.P. Kultygin 《International Journal of Social Welfare》1993,2(3):142-149
The article describes the socioeconomic situation of the Russian population and its dynamics in 1992. The analysis is based on series of regional sociological surveys led by the All-Russian Living Standards Research Center and on official Russian statistical data. The basic unit of analysis is the family, and hence family typology approbated both in research and in practical social work is introduced. Besides describing and discussing the growing poverty tendencies in contemporary Russia, the article also contains methodological recommendations for social policy bodies and social workers on the strategy of work in social maintenance and social support of the least secure population strata. 相似文献
53.
54.
Abstract The objective of this study is to examine female labor force participation and its determinants in rural and urban China. The sociological literature has demonstrated that participation tends to increase in urban and industrialized places where women have higher levels of education and fewer children, where more workers are engaged in service pursuits, and where family structure is less traditional. With the use of data on counties and cities (N = 2,377) from the I-percent sample of the 1982 census of the People's Republic of China, it was found that female labor force participation is likely to rise in areas with increased agricultural employment, educational levels, proportion of female-headed households, and higher male-to-female sex ratios. Both the size of the service sector and the fertility rate had negligible effects on female labor force participation. Although, on average, rural places have slightly higher levels of female labor force participation, when other variables are controlled, urban places have a higher rate of female participation. In addition, the findings suggest that market factors (i.e., education) are more likely to determine the rate of female labor force participation in urban areas; whereas demographic and social factors (i.e., sex ratio and household structure) play a more important role in explaining the female labor force participation in rural counties. 相似文献
55.
56.
Abstract Rural women have difficulty finding good jobs. Ownership of small businesses offers an alternative but the sales and income of women-owned firms are significantly lower than those of men-owned firms. Compared with men, women owners are more likely to operate smaller and newer businesses; however, these differences do not completely account for the gap in gross sales between men- and women-owned businesses. The strongest influences on business success are firm size, corporate status, and industrial sector. Though significant, the owner's gender is less important than these organizational characteristics. The factors influencing success of small businesses generally are the same for men- and women-owned businesses. More research on business networks and the start-up phase of small businesses is necessary for a better understanding of the sources of gender differences in success. 相似文献
57.
58.
The skin is a route of exposure that needs to be considered when conducting a risk assessment. It is necessary to identify the potential for dermal penetration by a chemical as well as to determine the overall importance of the dermal route of exposure as compared with inhalation or oral routes of exposure. The physical state of the chemical, vapor or liquid, the concentration, neat or dilute, and the vehicle, lipid or aqueous, is also important. Dermal risk is related to the product of the amounts of penetration and toxicity. Toxicity involves local effects on the skin itself and the potential for systemic effects. Dermal penetration is described in large part by the permeability constant. When permeability constants are not known, partition coefficients can be used to estimate a chemical's potential to permeate the skin. With these concepts in mind, a tiered approach is proposed for dermal risk assessment. A key first step is the determination of a skin-to-air or skin-to-medium partition coefficient to estimate a potential for dermal absorption. Building a physiologically-based pharmacokinetic (PBPK) model is another step in the tiered approach and is useful prior to classical in vivo toxicity tests. A PBPK model can be used to determine a permeability constant for a chemical as well as to show the distribution of the chemical systemically. A detailed understanding of species differences in the structure and function of the skin and how they relate to differences in penetration rates is necessary in order to extrapolate animal data from PBPK models to the human. A study is in progress to examine anatomical differences for four species. 相似文献
59.
James A. Yunker 《Economic inquiry》1994,32(4):597-615
A small-scale general equilibrium model in which the distribution of capital wealth is a key parameter is employed to examine the potential economic consequences of greater capital wealth equality. Every performance indicator examined – aggregate income, consumption equality, social welfare in the sum-of-utilities sense, and aggregate saving –is improved by greater capital wealth equality. However, the bottom-line social welfare gain, relative to the present high-inequality situation – even from the maximum achievable level of complete equality in capital wealth distribution – would be numerically rather modest. 相似文献
60.
Are the decisions of American policymakers informed by generaltrends in the publics ideology or by the publicspolicy-specific preferences? In this article we discuss twoexplanations for the types of public opinion information thatpoliticians collect and use. Using a unique data set of privatepolls from the White House of Richard Nixon, we find that whenopinion data on specific policies were available, the presidentrelied on them and not on general ideology data. On less importantissues, however, we find that the president often chose notto collect policy-specific data and instead relied on generalideology data. The differential collection and use of informationby policymakers reflect varying strategic calculations. Theyalso have profound implications for representative democracyand the demands placed on citizens and governors. 相似文献