全文获取类型
收费全文 | 35171篇 |
免费 | 695篇 |
国内免费 | 1篇 |
专业分类
管理学 | 5114篇 |
民族学 | 181篇 |
人才学 | 2篇 |
人口学 | 4660篇 |
丛书文集 | 109篇 |
教育普及 | 2篇 |
理论方法论 | 2792篇 |
现状及发展 | 1篇 |
综合类 | 796篇 |
社会学 | 16108篇 |
统计学 | 6102篇 |
出版年
2021年 | 153篇 |
2020年 | 349篇 |
2019年 | 483篇 |
2018年 | 2101篇 |
2017年 | 2341篇 |
2016年 | 1617篇 |
2015年 | 513篇 |
2014年 | 633篇 |
2013年 | 4190篇 |
2012年 | 1162篇 |
2011年 | 1818篇 |
2010年 | 1560篇 |
2009年 | 1234篇 |
2008年 | 1364篇 |
2007年 | 1522篇 |
2006年 | 568篇 |
2005年 | 818篇 |
2004年 | 792篇 |
2003年 | 749篇 |
2002年 | 685篇 |
2001年 | 691篇 |
2000年 | 684篇 |
1999年 | 603篇 |
1998年 | 452篇 |
1997年 | 402篇 |
1996年 | 443篇 |
1995年 | 392篇 |
1994年 | 367篇 |
1993年 | 379篇 |
1992年 | 446篇 |
1991年 | 419篇 |
1990年 | 371篇 |
1989年 | 366篇 |
1988年 | 384篇 |
1987年 | 341篇 |
1986年 | 324篇 |
1985年 | 369篇 |
1984年 | 345篇 |
1983年 | 329篇 |
1982年 | 278篇 |
1981年 | 244篇 |
1980年 | 216篇 |
1979年 | 255篇 |
1978年 | 244篇 |
1977年 | 205篇 |
1976年 | 176篇 |
1975年 | 207篇 |
1974年 | 156篇 |
1973年 | 147篇 |
1972年 | 123篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
931.
In France over the last four decades increasing interest in the small, the specific and the subjective can be observed. This involves a shift away from a holist approach towards social analysis focused on the individual and often carried out by researchers as specified and reflexive individuals. To be understood, this movement must be situated in the context of the development of French sociology, largely dominated at its origins by Durkheimian sociology. Thus, when the individual has appeared this is often not in his or her own right, but as representative of a social trend or group. As from the 1980s, new perspectives, very often imported from American sociology bring into play individual action, emotions and bodies, often studied as socially shaped. More recently, individual characteristics have been examined as a constraint on the possibilities of action, and discussion has also revolved around the reality of the person as an autonomous subject. 相似文献
932.
Utz Schäffer Jan-Philipp Lüdtke Diedrich Bremer Matthias Häußler 《Zeitschrift für Betriebswirtschaft》2012,82(1):47-73
This paper investigates the influence of accounting standards on systematic earnings understatement. To isolate the effect
of reporting regulations from those of other institutional drivers of earnings management, Holthausen (2003) proposes analyzing
reporting practices in a country undergoing a transition in accounting standards. We respond to this call by analyzing earnings
management practices of large German-listed companies before and after their transitions from German GAAP to IFRS. Specifically,
we focus on Big Bath behavior following Chief Financial Officer turnovers between 1999 and 2006. Our findings provide evidence
of the effect of accounting standards on the existence of this particular earnings understatement pattern. However, while
we detect Big Bath behavior for our sample of German GAAP firms, we find no such indication for those firms reporting under
IFRS. Controlling for alternative explanations such as self-selection bias does not change our findings. We conclude that
accounting standards seem to have a considerable influence on earnings management behavior, independent of managers’ and auditors’
incentives. 相似文献
933.
Luca Zanin 《Social indicators research》2017,132(2):925-947
We employ cross-sectional microdata from 2010 through 2012 collected by the Italian National Institute of Statistics to investigate the proposed conceptual framework regarding the joint relationship between education, life satisfaction and the probability of social trust. The analysis has been carried out using two alternative specifications of the logit model: parametric and semiparametric. Our findings suggest that (a) both modelling methods that we utilise yield consistent results in terms of the positive effects of education and life satisfaction on social trust; (b) for unsatisfied individuals, social trust is generally low and largely unresponsive to the individual’s education level, whereas for ‘sufficiently satisfied’ individuals, social trust increases strongly with education; (c) there are some gender differences in the joint relationship between education, life satisfaction and social trust and (d) the parametric approach tends to mask some interesting patterns that are captured by the semiparametric specification. This finding implies that the parametric approach leads to a biased interpretation of the results, with an apparent failure of some of the assumptions made in the conceptual framework. 相似文献
934.
Thomas Muehlenstaedt Olivier Roustant Laurent Carraro Sonja Kuhnt 《Statistics and Computing》2012,22(3):723-738
Kriging models have been widely used in computer experiments for the analysis of time-consuming computer codes. Based on kernels,
they are flexible and can be tuned to many situations. In this paper, we construct kernels that reproduce the computer code
complexity by mimicking its interaction structure. While the standard tensor-product kernel implicitly assumes that all interactions
are active, the new kernels are suited for a general interaction structure, and will take advantage of the absence of interaction
between some inputs. The methodology is twofold. First, the interaction structure is estimated from the data, using a first
initial standard Kriging model, and represented by a so-called FANOVA graph. New FANOVA-based sensitivity indices are introduced
to detect active interactions. Then this graph is used to derive the form of the kernel, and the corresponding Kriging model
is estimated by maximum likelihood. The performance of the overall procedure is illustrated by several 3-dimensional and 6-dimensional
simulated and real examples. A substantial improvement is observed when the computer code has a relatively high level of complexity. 相似文献
935.
Karla A. Lassonde Carolina Surla Jeffrey A. Buchanan Edward J. O'Brien 《Journal of Aging Studies》2012,26(2):174-181
Ageism is an important topic in our society, considering the burgeoning older adult population. Ageism is often measured using explicit questionnaires; however, given the impact of social desirability, implicit measures of ageism have been developed. In this study, the contradiction paradigm, an implicit measure of stereotypes (Lassonde, under review) was used to measure age-related stereotypes in passages describing older adults. Participants read passages with target sentences more slowly when these sentences described behaviors that were inconsistent rather than consistent with age-related stereotypes. Participants also completed a series of self-report questionnaires measuring ageism. Results demonstrated that reading times using the contradiction paradigm were not related to outcomes on the self-report questionnaires. A comparison of the contradiction paradigm to a social desirability scale revealed that it was not vulnerable to social desirability. This confirms the contradiction paradigm's use as an implicit measure of age-related stereotypes. Although there is no clear relation between the contradiction paradigm and popular explicit measures, a next important step would be to determine the point in which implicit knowledge and intentional behavioral responses interact. 相似文献
936.
Abdul Saboor Shumaila Sadiq Atta Ullah Khan Gulnaz Hameed 《Social indicators research》2017,133(1):31-45
Massive increase in crimes has coexisted with rising inflation and high unemployment for the last couple of decades especially during democratic governments in Pakistan. In this paper, we explore the relationship between crime rate, misery index and democracy in Pakistan from 1975 to 2013. Granger causality test proposed the unidirectional causality running from misery index to crime rate in Pakistan. Estimating the crime function via Pasaran’s conditional error correction model, we found the significant long run equilibrium relationship between Okun’s misery index and crime rate which implies that rising inflation and unemployment rate are the major driving forces towards increasing crime rates in Pakistan. Finally, empirical evidence from Okun’s misery index suggested that people are three times more miserable in quasi democratic periods than that of dictatorship. The Barrow’s misery index model verifies that people are twice worsening in quasi democratic periods. Likewise, reported crimes are nearly twice during quasi democracy than quasi dictatorship. The crime model provided the evidence that people during quasi democratic governments are more likely tending towards crime as compared to quasi dictatorship during the study period in Pakistan. This implicitly advocates the fact that half hearted efforts and ill structured apparatus of democracy can augment the tendency of crime and misery rather than solution of such concerns of the economy. 相似文献
937.
The cross-entropy (CE) method is an adaptive importance sampling procedure that has been successfully applied to a diverse range of complicated simulation problems. However, recent research has shown that in some high-dimensional settings, the likelihood ratio degeneracy problem becomes severe and the importance sampling estimator obtained from the CE algorithm becomes unreliable. We consider a variation of the CE method whose performance does not deteriorate as the dimension of the problem increases. We then illustrate the algorithm via a high-dimensional estimation problem in risk management. 相似文献
938.
939.
In the 1970s motion picture studios increased their use of blind bidding and nonrefundable guarantees in an attempt to reduce the risks associated with producing a small number of large budget films. However, theater owners claimed that blind bidding and guarantees shifted risk to them and increased the likelihood of bankruptcy, because they were required to bid for the right to exhibit a movie without seeing it first. In response to the lobbying of theater owners, 24 states passed laws between 1978 and 1984 that banned blind bidding, while 7 states also banned nonrefundable guarantees. This paper provides the first empirical analysis of the conflicting claims made by theater owners and movie studios about the impact of these laws on the survival rates of independent theaters, admission prices, and delays in the release of movies. We find that the laws were not only ineffective in keeping theater owners at risk of bankruptcy from exiting the market; they may have been even detrimental to those theater owners converting theaters to multiplexes at that time. (JEL K, L) 相似文献
940.
Chris M. R. Smerecnik Ilse Mesters Math J. J. M. Candel Hein De Vries Nanne K. De Vries 《Risk analysis》2012,32(1):54-66
The role of information processing in understanding people's responses to risk information has recently received substantial attention. One limitation of this research concerns the unavailability of a validated questionnaire of information processing. This article presents two studies in which we describe the development and validation of the Information‐Processing Questionnaire to meet that need. Study 1 describes the development and initial validation of the questionnaire. Participants were randomized to either a systematic processing or a heuristic processing condition after which they completed a manipulation check and the initial 15‐item questionnaire and again two weeks later. The questionnaire was subjected to factor reliability and validity analyses on both measurement times for purposes of cross‐validation of the results. A two‐factor solution was observed representing a systematic processing and a heuristic processing subscale. The resulting scale showed good reliability and validity, with the systematic condition scoring significantly higher on the systematic subscale and the heuristic processing condition significantly higher on the heuristic subscale. Study 2 sought to further validate the questionnaire in a field study. Results of the second study corresponded with those of Study 1 and provided further evidence of the validity of the Information‐Processing Questionnaire. The availability of this information‐processing scale will be a valuable asset for future research and may provide researchers with new research opportunities. 相似文献