全文获取类型
收费全文 | 96455篇 |
免费 | 1996篇 |
国内免费 | 6篇 |
专业分类
管理学 | 13074篇 |
民族学 | 582篇 |
人才学 | 27篇 |
人口学 | 7695篇 |
丛书文集 | 555篇 |
教育普及 | 2篇 |
理论方法论 | 9717篇 |
现状及发展 | 1篇 |
综合类 | 2350篇 |
社会学 | 45179篇 |
统计学 | 19275篇 |
出版年
2023年 | 528篇 |
2021年 | 608篇 |
2020年 | 1566篇 |
2019年 | 2281篇 |
2018年 | 2278篇 |
2017年 | 3336篇 |
2016年 | 2523篇 |
2015年 | 2099篇 |
2014年 | 2704篇 |
2013年 | 19041篇 |
2012年 | 2634篇 |
2011年 | 2458篇 |
2010年 | 2136篇 |
2009年 | 2281篇 |
2008年 | 2156篇 |
2007年 | 2030篇 |
2006年 | 2230篇 |
2005年 | 2416篇 |
2004年 | 2261篇 |
2003年 | 1988篇 |
2002年 | 2101篇 |
2001年 | 2180篇 |
2000年 | 1955篇 |
1999年 | 1819篇 |
1998年 | 1566篇 |
1997年 | 1431篇 |
1996年 | 1403篇 |
1995年 | 1391篇 |
1994年 | 1364篇 |
1993年 | 1362篇 |
1992年 | 1383篇 |
1991年 | 1314篇 |
1990年 | 1277篇 |
1989年 | 1136篇 |
1988年 | 1226篇 |
1987年 | 1084篇 |
1986年 | 987篇 |
1985年 | 1160篇 |
1984年 | 1210篇 |
1983年 | 1099篇 |
1982年 | 1003篇 |
1981年 | 890篇 |
1980年 | 847篇 |
1979年 | 939篇 |
1978年 | 813篇 |
1977年 | 730篇 |
1976年 | 679篇 |
1975年 | 665篇 |
1974年 | 562篇 |
1973年 | 473篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
The question of how to measure the influence of family planning in fertility has been addressed by numerous international scholars. Highlighted briefly here are some of the methods endorsed by United Nations publications and recognized by scholars of various countries: 1) Standardization; 2) John Bongaarts model; 3) Trend analysis; 4) Wishik model; 5) Converse model of Dorothy Nartman; 6) Potter model; 7) Nathan Keyfitz model; 8) "Plural model"; 9) Model analysis. 相似文献
992.
993.
This article examines four issues that need to be explored by the therapist as possible causes of stress for a male couple: stereotypic male roles, stereotypic sexual roles, homophobia, which includes the "coming out" process, and sexual dysfunctions. These issues can cause anxiety and stress, which may in turn cause relationship problems for a male couple. The role of the therapist is clarified and suggestions for treatment are given. 相似文献
994.
Mortality trends in the USSR from the middle of the nineteenth century to the present day are analyzed, with a focus on changes in life expectancy. The authors note that life expectancy increased up to 1964-1965, declined subsequently, and stabilized during the 1980s. Life expectancy has again started to rise since 1985. More detailed analyses of mortality differentials by sex and age and for the rural and urban populations are included. (SUMMARY IN ENG) 相似文献
995.
Lotte Glaser Sebastian P.L. Fourné Julia Brennecke Tom Elfring 《Long Range Planning》2021,54(4):102068
Building on recent efforts to bring a socio-political perspective to social capital research, we develop and test a multilevel framework that explains why middle managers who occupy brokerage positions differ in their ability and willingness to engage in entrepreneurial behavior. More specifically, we provide a contextualized understanding of the links among middle managers' brokerage, their political-support ties, and their personal initiative. Results derived from data on 383 middle managers and 72 top managers in 34 business units indicate that political-support ties with top managers strengthen the relationship between middle managers’ brokerage and personal initiative. However, this positive effect depends on the social capital resources available in the focal business unit. It is attenuated in business units with a supportive and trusting social context and amplified in business units with high levels of internal connectedness. By uncovering these incompatibilities and complementarities, our study demonstrates the value of accounting for different social capital configurations and the interplay of their inherent social capital resources when examining the effects of brokerage on corporate entrepreneurship. 相似文献
996.
Research on firm search stresses the need for firms to adapt and align concurrently with their environment to optimize the ability to sense and seize opportunities for sustained performance. We postulate resource scarcity as an important contingency factor for the search-performance relationship, and assess its joint influence with high and low dynamism. Using a dataset spanning 23 years, we examine the performance implications of combinations of internal and external exploratory and exploitative search in resource-scarce environments, under conditions of high and low dynamism. We find that resource scarcity is an important condition for performance stemming from exploratory and exploitative search: even under conditions that involve low dynamism, but joined with resource scarcity, firms may benefit from pursuing exploratory and exploitative knowledge simultaneously. 相似文献
997.
Florian Smeritschnig Jakob Muellner Phillip C. Nell Martin Weiss 《Long Range Planning》2021,54(1):101992
How do firm-specific, demand-related factors influence the relationship between intra-industry diversification (IID) and performance? Recent findings regarding the performance effects of IID depict a complex picture with curvilinear relationships and several contingencies. However, firm-specific contingencies on the demand side have remained unexplored. We analyze how IID relates to firm performance (market share) in the German automotive industry using panel data between 1999 and 2008. We specifically focus on a firm's high-quality brand image as a demand-side contingency. We find support for our hypotheses of complex curvilinear relationships as well as for moderating effects of brand quality. Our results have significant theoretical implications for the IID literature. 相似文献
998.
Knowledge is a vital source of competitive advantage and renewal for contemporary organizations. However, to date, few studies have scrutinized how mergers and acquisitions (M&As)—processes dependent on knowledge sharing—offer a valuable inter-organizational context through which to understand the attainment of customer knowledge sharing following M&As. Applying an integrated theoretical perspective from customer relationship management and M&A performance research, we study a Chinese–Finnish acquisition and customer firms of the acquired party across four advanced Western countries. We find that customer knowledge sharing is an active relationship management process that relies on the factors of customer dedication-based motivation vs. customer concerns about M&As to maintain relationships after acquisitions. In addition, and more importantly, we find that the promise management mechanisms—making promises, enabling promises, and keeping promises—of the M&A parties reinforce the motivational factors to maintain customer knowledge sharing in cross-border M&As. We propose a conceptual framework of customer knowledge sharing in cross-border M&As. 相似文献
999.
Samuel Adomako Joseph Amankwah‐Amoah Yaw A. Debrah Zaheer Khan Irene Chu Catherine Robinson 《英国管理杂志》2021,32(1):40-58
This paper examines the mediating mechanism of the relationship between institutional voids (IVs) and inter‐firm cooperation and the moderating role of economic adversity in the context of small and medium‐sized enterprises (SMEs) based in emerging markets. The hypotheses are tested using time‐lagged survey data from 214 SMEs in Ghana. The findings provide support for the hypotheses by showing that: (1) IVs positively influence the use of government research and development (R&D) support; (2) the use of government R&D support mediates the relationship between IVs and inter‐firm cooperation; and (3) economic adversity positively moderates the relationship between IVs and the use of government R&D support. The findings contribute to understanding the role of IVs in inter‐firm cooperation. The wider implications for theory and practice are examined. 相似文献
1000.
色彩是当代电影艺术最重要的艺术语言和表达方式之一.色彩在画面叙事和视觉美学的自我构建中,体现了当代影视和现代艺术的自我革新和体式变革,也体现了人类审美的时代追求与心理演进.新时代的审美文化在全球化和多元化的历史进程中,尤其关注色彩和色调在美术创作中的艺术构图、视界成型和哲理引导.通过研究电影色彩的叙事手法进一步探寻电影色彩的形式、时代、情感、伦理、原型的审美价值以及对审美公众的审美意义,有助于充分发挥电影色彩的价值,进一步探索电影创作的规律. 相似文献