全文获取类型
收费全文 | 14377篇 |
免费 | 474篇 |
国内免费 | 15篇 |
专业分类
管理学 | 1732篇 |
民族学 | 102篇 |
人才学 | 1篇 |
人口学 | 1321篇 |
丛书文集 | 146篇 |
理论方法论 | 1364篇 |
综合类 | 700篇 |
社会学 | 7653篇 |
统计学 | 1847篇 |
出版年
2023年 | 87篇 |
2022年 | 79篇 |
2021年 | 133篇 |
2020年 | 242篇 |
2019年 | 325篇 |
2018年 | 456篇 |
2017年 | 604篇 |
2016年 | 408篇 |
2015年 | 330篇 |
2014年 | 388篇 |
2013年 | 2286篇 |
2012年 | 543篇 |
2011年 | 531篇 |
2010年 | 427篇 |
2009年 | 359篇 |
2008年 | 440篇 |
2007年 | 451篇 |
2006年 | 441篇 |
2005年 | 380篇 |
2004年 | 311篇 |
2003年 | 267篇 |
2002年 | 281篇 |
2001年 | 346篇 |
2000年 | 291篇 |
1999年 | 287篇 |
1998年 | 206篇 |
1997年 | 173篇 |
1996年 | 163篇 |
1995年 | 183篇 |
1994年 | 160篇 |
1993年 | 166篇 |
1992年 | 192篇 |
1991年 | 191篇 |
1990年 | 186篇 |
1989年 | 162篇 |
1988年 | 170篇 |
1987年 | 191篇 |
1986年 | 150篇 |
1985年 | 161篇 |
1984年 | 177篇 |
1983年 | 152篇 |
1982年 | 151篇 |
1981年 | 121篇 |
1980年 | 112篇 |
1979年 | 122篇 |
1978年 | 95篇 |
1977年 | 79篇 |
1976年 | 94篇 |
1975年 | 110篇 |
1974年 | 84篇 |
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
971.
An environmental life cycle optimization model for the European pulp and paper industry 总被引:1,自引:0,他引:1
Will paper recycling reduce the environmental impact of the European pulp and paper sector? If so, is maximal paper recycling the best policy to optimize the life cycle of the pulp and paper sector? We explore these questions using an approach that combines materials accounting methods and optimization techniques. Environmental impact data are inputs for a linear programming network flow model to find optimal configurations for the sector. These configurations consist of a mix of different pulping technologies, a geographical distribution of pulp and paper production, and a level of recycling consistent with the lowest environmental impacts. We use the model to analyse scenarios with different recycling strategies. Recycling offers a reduction in environmental impact in regions with a high population and a large production of paper and board products. Regions with a large production of graphic products should focus on cleaner virgin pulp production with energy recovery. We conclude that relocation of paper production also offers a reduction in environmental impact. However, the severe effects on the economy make this policy less attractive than a combination of recycling, cleaner pulp production and energy recovery. 相似文献
972.
Amy L. Pablo 《International Journal of Value-Based Management》1995,8(2):149-161
In a multi-method study that examined post-acquisition integration design decisions, managers were found to have poor insight into the values underlying their decision making. This lack of insight was not found to be moderated by increased levels of experience with acquisition decision making, and its effects were reflected in post-acquisition performance. 相似文献
973.
Richard L. Osborne 《Long Range Planning》1992,25(6):56-62
Morton L. Mandel, CEO of Cleveland-based Premier Industrial Corporation, with brothers Jack and Joe, started selling automotive fasteners out of garage 50 years ago. Today, Premier's sales are running at a record $650m clip. The market value of the Mandel brothers' publicly-traded Premier shares earns all three a place on Forbes' list of the 400 wealthiest Americans. The family still holds about 60 per cent of the stock. Mort Mandel believes that gives the company independence and the ability to concentrate on nuts and bolts rather than politics. Mandel's nuts and bolts approach to managing has created stunning success—after-tax margins twice the average of Premier's industry, return on assets of 24 per cent, return on investment above 30 per cent, earnings per share compounded in excess of 17 per cent for the past 5 years, shareholders' equity that has grown close to 10 per cent annually for 20 years, and debt of less than 3 per cent of net worth. Mandel says it's simple: Treat customers as though they have the ‘right’ to superior service. Behave ethically, professionally and personally. Do good. Invest in people. Execute, execute, execute. What he calls Management 101. We suspected it wasn't quite that simple, and we wanted to know how he created a company that repeatedly outperforms its industry and many others, how he sustains a culture that generates 5000 written profit improvement ideas a year from Premier's 5400 employees. So we asked him some questions about his views on management and leadership that produced refreshing insights into the power, purity and timeless applicability of ‘management basics’. This interview was conducted at Premier's unpretentious executive offices, located in the Midtown Corridor of Cleveland, Ohio, a privately-sponsored urban renewal project inspired by Mort Mandel, who practices his preachings about ‘doing good’. 相似文献
974.
AbstractAs economies become more reliant on innovative, knowledge-intensive firms, understanding the interaction between knowledge and improving innovation performance is increasingly important. Although most UK businesses are micro, small or medium-sized enterprises (micro/SMEs), knowledge management research has tended to focus on large companies Knowledge sharing can be critical for innovation performance, especially for smaller players with limited resources. Our study presents an insight from micro/SMEs operating in the highly knowledge-intensive and innovative games/entertainment software development sector. Using a mixed method approach, we investigate knowledge sharing and its contribution to firm innovation performance improvements. Our findings suggest that micro/SMEs are at the forefront of the creative sector precisely because of their smaller size. Our study reveals evidence of knowledge donation but limited evidence of knowledge collection in the knowledge sharing process. We develop a model highlighting the importance of industry context, individual knowledge and organizational size in knowledge sharing for innovation performance. 相似文献
975.
Brian L. Donald 《Long Range Planning》1974,7(6):33-42
From April 1974, National Health Service authorities have been merged to provide integrated and comprehensive services. The reorganization policies place considerable emphasis on the need for management and planning but planning for health services is not well developed. Ambiguous operational objectives and obscured criteria for effectiveness are not the most promising basis for planning. Nevertheless, a commendable beginning is to be made on planning comprehensively through a systematic annual review of Government health service policies and planning and programming procedures for health authorities. The outlines of the system are described and the prospects for success and further development are considered. 相似文献
976.
A methodological strategy for a one-number census in the UK 总被引:1,自引:1,他引:0
Brown JJ Diamond ID Chambers RL Buckner LJ Teague AD 《Journal of the Royal Statistical Society. Series A, (Statistics in Society)》1999,162(2):247-267
As a result of lessons learnt from the 1991 census, a research programme was set up to seek improvements in census methodology. Underenumeration has been placed top of the agenda in this programme, and every effort is being made to achieve as high a coverage as possible in the 2001 census. In recognition, however, that 100% coverage will never be achieved, the one-number census (ONC) project was established to measure the degree of underenumeration in the 2001 census and, if possible, to adjust fully the outputs from the census for that undercount. A key component of this adjustment process is a census coverage survey (CCS). This paper presents an overview of the ONC project, focusing on the design and analysis methodology for the CCS. It also presents results that allow the reader to evaluate the robustness of this methodology. 相似文献
977.
978.
This paper examines perceptions of family relations, identity expression, and pro-lesbian/gay resources as factors influencing coming out to parents. One hundred seventy-two adolescents responded to a survey originating from a clinical support group for lesbian and gay youth. Findings indicate that weak family relations significantly detract from coming out to parents indirectly through identity expression and perceived resources. Excluding the effects of family relations, adolescents perceiving supportive resources and expressing their lesbian/gay identity were more likely to come out to parents. 相似文献
979.
Using the Luxembourg Income Study data we examine married women's dependency on their husbands' earnings in nine Western industrialized
countries: Australia, Belgium, Canada, Finland, Germany, the Netherlands, Norway, Sweden, and the United States. When we examine
the level and degree of dependency, and the labor force participation of married women across countries, the nine countries
fall into the three clusters delineated in Esping-Andersen's welfare states typology. But when we examine the determinants
of the dependency within each country, the clustering disappears. Wives' dependency increases with age, the presence of young
children, and the number of children. It is reduced when wives' labor force participation and education are high relative
to their husbands' and in families that rely more on unearned sources of income. The similarity of patterns across countries
suggests that gender differences in the work-family nexus are deeply entrenched in all countries and continue even in the
face of very active social policy to minize their effects.
This is a revised version of a paper presented at the annual meeting of the American Sociological Association, August 1995,
Washington DC.
Her current research focuses on gender inequality and parents' time allocation between work and family.
She conducts research on various aspects of family demography, including household and family characteristics, co-resident
grandparent families, cohabitation, and child care. With Suzanne Bianchi, she is completing a research monograph on trends
in the American family.
Her research focuses on gender, work, and family issues. 相似文献
980.
Beeber LS 《Journal of American college health : J of ACH》1999,47(5):227-234
Factors to explain the rising incidence of depressive symptoms among young women making the transition from home to university life were investigated. A path analysis of data from 213 18- and 19-year-old women entering a large university indicated that negative life events, interpersonally derived social support, self-esteem, and depressive symptoms were significantly related. Negative life events that affected the women's self-esteem (drawn from the women's performance in interpersonal relationships) were most strongly associated with depressive symptoms, and self-esteem derived through efficacy (i.e., taking control and acting assertively) was not associated with negative events. The women in the sample appeared to derive efficacy self-esteem from relationships. An analysis of the data supported developing interventions to improve interpersonal relationships rather than focusing on competence in gaining access to resources. 相似文献