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   3127篇
  免费   787篇
管理学   709篇
民族学   11篇
人口学   98篇
丛书文集   1篇
理论方法论   623篇
综合类   2篇
社会学   2134篇
统计学   336篇
  2023年   2篇
  2021年   70篇
  2020年   143篇
  2019年   303篇
  2018年   130篇
  2017年   220篇
  2016年   268篇
  2015年   269篇
  2014年   245篇
  2013年   450篇
  2012年   214篇
  2011年   200篇
  2010年   168篇
  2009年   129篇
  2008年   180篇
  2007年   112篇
  2006年   134篇
  2005年   102篇
  2004年   109篇
  2003年   98篇
  2002年   66篇
  2001年   73篇
  2000年   60篇
  1999年   21篇
  1998年   4篇
  1997年   6篇
  1996年   16篇
  1995年   10篇
  1994年   16篇
  1993年   11篇
  1992年   9篇
  1991年   9篇
  1990年   8篇
  1989年   13篇
  1988年   9篇
  1987年   5篇
  1986年   3篇
  1985年   3篇
  1984年   8篇
  1983年   2篇
  1982年   3篇
  1981年   4篇
  1980年   1篇
  1979年   2篇
  1978年   3篇
  1977年   1篇
  1976年   2篇
排序方式: 共有3914条查询结果,搜索用时 906 毫秒
991.
In recent years, the dynamic capabilities view has attracted attention in the management literature, and theoretical papers note many research challenges. Currently, one of the most significant issues is the role of the marketing function in the development of dynamic capabilities, and some recent discussions have even introduced the new term ‘dynamic marketing capabilities’. The main area of interest is how to achieve a well‐integrated framework to serve as the starting point for empirical papers. Although the most recent research proposes a wide range of processes as possible dynamic marketing capabilities, it is difficult to find consensus among these proposals. To resolve this difficulty, this paper seeks to define the dynamic marketing capabilities construct based on accepted components in the generic dynamic capabilities view. More specifically, it defines the role of dynamic marketing capabilities through absorptive capacity and knowledge management. By identifying these components and relating them in an integrative model, the authors propose to explain how dynamic marketing capabilities work and precisely which marketing processes promote both components.  相似文献   
992.
In statistical applications, logistic regression is a popular method for analyzing binary data accompanied by explanatory variables. But when one of the two outcomes is rare, the estimation of model parameters has been shown to be severely biased and hence estimating the probability of rare events occurring based on a logistic regression model would be inaccurate. In this article, we focus on estimating the probability of rare events occurring based on logistic regression models. Instead of selecting a best model, we propose a local model averaging procedure based on a data perturbation technique applied to different information criteria to obtain different probability estimates of rare events occurring. Then an approximately unbiased estimator of Kullback‐Leibler loss is used to choose the best one among them. We design complete simulations to show the effectiveness of our approach. For illustration, a necrotizing enterocolitis (NEC) data set is analyzed.  相似文献   
993.
According to Codex Alimentarius Commission recommendations, management options applied at the process production level should be based on good hygiene practices, HACCP system, and new risk management metrics such as the food safety objective. To follow this last recommendation, the use of quantitative microbiological risk assessment is an appealing approach to link new risk‐based metrics to management options that may be applied by food operators. Through a specific case study, Listeria monocytogenes in soft cheese made from pasteurized milk, the objective of the present article is to practically show how quantitative risk assessment could be used to direct potential intervention strategies at different food processing steps. Based on many assumptions, the model developed estimates the risk of listeriosis at the moment of consumption taking into account the entire manufacturing process and potential sources of contamination. From pasteurization to consumption, the amplification of a primo‐contamination event of the milk, the fresh cheese or the process environment is simulated, over time, space, and between products, accounting for the impact of management options, such as hygienic operations and sampling plans. A sensitivity analysis of the model will help orientating data to be collected prioritarily for the improvement and the validation of the model. What‐if scenarios were simulated and allowed for the identification of major parameters contributing to the risk of listeriosis and the optimization of preventive and corrective measures.  相似文献   
994.
This article identifies and briefly describes the broad range of variables that may influence clients’ readiness to benefit from career interventions. The article also discusses consequences of low readiness for effective use of career interventions and addresses implications for practice as well as for future research. Variables contributing to low readiness for effective use of career interventions include personal characteristics and circumstances; knowledge of self, options, and decision making; and prior experience with career interventions. Consequences of low readiness for using career interventions include premature disengagement, negative perception of skills and interests, selective acquisition of incomplete information, premature choice foreclosure, protracted exploration, dependent decision‐making style, and poor evaluation of options.  相似文献   
995.
Abstract

The authors examined the feasibility and effectiveness of a telephone follow-up procedure on use of emergency contraceptive pills (ECP) at a college health center. They made 264 telephone calls to the 97 women who had received ECPs during one 16-week academic semester and were successful in reaching 65 (67%) of the women, who responded with information about their experiences with ECPs. The women demonstrated a high rate of adherence to the medical regimen and reported very few side effects from ECPs; a majority said that ECPs did not affect their ability to carry out daily activities. On weighing the relative absence of problems following ECP distribution against the time, effort, and cost required to reach just over two thirds of the women, the researchers concluded that an ECP telephone follow-up procedure was neither cost-effective nor particularly useful.  相似文献   
996.
997.
The first computer‐assisted career planning systems were developed in the late 1960s and were based soundly on the best of career development and decision‐making theory. Over the years, this tradition has continued as the technology that delivers these systems’ content has improved dramatically and as they have been universally accepted as effective tools for career guidance practice. Although their widespread use in the United States is currently affected by financial conditions, the potential for using these systems in developing countries as a part of their implementation of career guidance services is promising.  相似文献   
998.
Extending the growing interest in the relationship between affect and workgroup processes, we propose that groups make better use of their distributed information and therefore make better decisions when group members are higher in negative affectivity. In an experiment, we studied the influence of negative affectivity when information was distributed among group members and when group members had fully shared information. Results indicated that negative affectivity indeed stimulates group information processing and decision quality when information is distributed among group members.  相似文献   
999.
Abstract. This article studies a method to estimate the parameters governing the distribution of a stationary marked Gibbs point process. This procedure, known as the Takacs–Fiksel method, is based on the estimation of the left and right hand sides of the Georgii–Nguyen–Zessin formula and leads to a family of estimators due to the possible choices of test functions. We propose several examples illustrating the interest and flexibility of this procedure. We also provide sufficient conditions based on the model and the test functions to derive asymptotic properties (consistency and asymptotic normality) of the resulting estimator. The different assumptions are discussed for exponential family models and for a large class of test functions. A short simulation study is proposed to assess the correctness of the methodology and the asymptotic results.  相似文献   
1000.
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