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511.
Dieter Rasch Thomas Rusch Marie Šimečková Klaus D. Kubinger Karl Moder Petr Šimeček 《Statistical Papers》2009,50(4):905-916
In variety testing as well as in psychological assessment, the situation occurs that in a two-way ANOVA-type model with only
one replication per cell, analysis is done under the assumption of no interaction between the two factors. Tests for this
situation are known only for fixed factors and normally distributed outcomes. In the following we will present five additivity
tests and apply them to fixed and mixed models and to quantitative as well as to Bernoulli distributed data. We consider their
performance via simulation studies with respect to the type-I-risk and power. Furthermore, two new approaches will be presented,
one being a modification of Tukey’s test and the other being a new experimental design to test for interactions. 相似文献
512.
Marie Beaulieu Isabelle Maillé Jordan Bédard-Lessard Hélène Carbonneau Sophie Éthier Julie Fortier Christine Morin Andrée Sévigny 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2020,31(6):1359-1370
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This article discusses promising practices used by employees and volunteers in nonprofit organizations (NPOs) in... 相似文献
513.
Jaromír Antoch Jan Hanousek Lajos Horváth Marie Hušková Shixuan Wang 《Econometric Reviews》2019,38(7):828-855
The detection of (structural) breaks or the so called change point problem has drawn increasing attention from the theoretical, applied economic and financial fields. Much of the existing research concentrates on the detection of change points and asymptotic properties of their estimators in panels when N, the number of panels, as well as T, the number of observations in each panel are large. In this paper we pursue a different approach, i.e., we consider the asymptotic properties when N→∞ while keeping T fixed. This situation is typically related to large (firm-level) data containing financial information about an immense number of firms/stocks across a limited number of years/quarters/months. We propose a general approach for testing for break(s) in this setup. In particular, we obtain the asymptotic behavior of test statistics. We also propose a wild bootstrap procedure that could be used to generate the critical values of the test statistics. The theoretical approach is supplemented by numerous simulations and by an empirical illustration. We demonstrate that the testing procedure works well in the framework of the four factors CAPM model. In particular, we estimate the breaks in the monthly returns of US mutual funds during the period January 2006 to February 2010 which covers the subprime crises. 相似文献
514.
Marie Bessec 《Econometric Reviews》2019,38(7):711-732
This paper introduces a Markov-switching model in which transition probabilities depend on higher frequency indicators and their lags through polynomial weighting schemes. The MSV-MIDAS model is estimated through maximum likelihood (ML) methods with a slightly modified version of Hamilton’s filter. Monte Carlo simulations show that ML provides accurate estimates, but they suggest some caution in interpreting the tests of the parameters in the transition probabilities. We apply this new model to forecast business cycle turning points in the United States. We properly detect recessions by exploiting the link between GDP growth and higher frequency variables from financial and energy markets. 相似文献
515.
Vachon Maxime Papineau Marie Dupuis Gilles Roberge Pasquale 《Social indicators research》2019,142(3):1193-1210
Social Indicators Research - Burnout has very often been studied from a work-life specific perspective. However, a recent field of research leads to wonder about the impact that life events can... 相似文献
516.
Construct Validation and Application of a Common Measure of Social Cohesion in 33 European Countries
The aim of the paper is to assess the construct validation of a multidimensional measure of social cohesion which is well
theoretically grounded and has an equivalent/comparable interpretation across all European countries. Up-to-now published
research on social cohesion is deficient in either one or both of these important aspects. This paper attempts to cover this
gap. The task is accomplished in two steps. In the first step, we conceptualize social cohesion, flowing mainly from Bernard
and Chan’s definitions of social cohesion. Based on this theoretical framework we operationalize social cohesion and derive
a set of intermediate indicators in the data. By return we verify whether these indicators empirically reflect/corroborate
the multidimensional structure of the concept proposed by the theory. In the second step, we examine whether the obtained
intermediate indicators of social cohesion form the same constructs across countries and whether they can yield a cross country
equivalent measure of social cohesion. To test the validity of the theory we use multidimensional scaling and confirmatory
factor analysis. Both models are able to verify the equivalence of the structural results between groups (i.e. countries).
Confirmatory factor analysis produces further meaningful measures of these constructs. The analyses are based on the data
from the 1999 European Values Study (EVS). The outcomes of the analyses reveal that, firstly, the existence of the multifaceted
construct of social cohesion suggested by the theory has been corroborated by empirical analysis of the EVS data (i.e. social
cohesion consists of components of formal and substantial relationships and political and socio-cultural domains). Secondly,
the proposed constructs measuring social cohesion are equivalent across all analysed countries and thus allow the calculation
of internationally comparable national scores of social cohesion. Application of the aggregate measures at the country level
will illustrate the interest of the approach for further research. 相似文献
517.
518.
Terri Mannarini Cosimo Talò Evangelia Ntzani Maria Kritikou Lluis Serra Majem Sergio Salvatore Lisa Marie Warner Maria Luisa Brandi 《Social indicators research》2018,135(3):965-968
Measures of subjective well-being, and especially life evaluations, or judgments about how happy people are with their lives as a whole, enrich and empower social indicators research. They do this by requiring other social indicators as explanatory variables and providing a coherent encompassing framework within which the relative importance of other social indicators can be established. 相似文献
519.
520.
Asylum seekers, refugees who are resettled in third countries or those who are forced into refugee camps, present new challenges to social work practitioners. In an attempt to advance theory and develop specialised practice in the area of refugee studies within social work as an international profession, we argue that whatever the flight context, the country of asylum or of resettlement, there is a process underlying what Malkki referred to as refugeeness. This article focuses on the situation of Iraqi refugees in Jordan as an example of the challenges that confront today's refugees. We show that salient issues raised in a local community centre's needs assessment mirror those elements that are central to integration processes that have been discussed in much of the refugee studies literature across the world. We show how these concerns are closely linked to processes that resettled refugees and asylum seekers face, regardless of the country of resettlement. We introduce a framework for analysing an individual refugee's situation and show how an international phenomenon is linked to local practice. 相似文献