全文获取类型
收费全文 | 2081篇 |
免费 | 79篇 |
学科分类
社会科学 | 2160篇 |
出版年
2023年 | 27篇 |
2022年 | 15篇 |
2021年 | 34篇 |
2020年 | 74篇 |
2019年 | 99篇 |
2018年 | 90篇 |
2017年 | 116篇 |
2016年 | 116篇 |
2015年 | 74篇 |
2014年 | 74篇 |
2013年 | 310篇 |
2012年 | 107篇 |
2011年 | 101篇 |
2010年 | 84篇 |
2009年 | 71篇 |
2008年 | 61篇 |
2007年 | 64篇 |
2006年 | 61篇 |
2005年 | 52篇 |
2004年 | 65篇 |
2003年 | 47篇 |
2002年 | 41篇 |
2001年 | 23篇 |
2000年 | 22篇 |
1999年 | 26篇 |
1998年 | 27篇 |
1997年 | 20篇 |
1996年 | 21篇 |
1995年 | 17篇 |
1994年 | 28篇 |
1993年 | 19篇 |
1992年 | 23篇 |
1991年 | 13篇 |
1990年 | 10篇 |
1989年 | 11篇 |
1988年 | 11篇 |
1987年 | 5篇 |
1986年 | 6篇 |
1985年 | 12篇 |
1984年 | 7篇 |
1983年 | 7篇 |
1982年 | 5篇 |
1981年 | 5篇 |
1980年 | 9篇 |
1979年 | 9篇 |
1978年 | 5篇 |
1976年 | 7篇 |
1975年 | 4篇 |
1974年 | 4篇 |
1971年 | 4篇 |
排序方式: 共有2160条查询结果,搜索用时 15 毫秒
101.
I. Manon de Groot Gerrit Antonides Daniel Read W. Fred van Raaij 《Journal of Socio》2009,38(3):509-518
The effects of different sales strategies on consumer product evaluation were investigated. It was expected that direct product experience could decrease economic product valuation. Experiments 1 and 2 studied the effects of product trials and money-back guarantees on consumer willingness to pay (WTP). It appeared that WTP was significantly lower after a product trial than with a money-back guarantee or normal sale. In Experiment 3 a structural equation model showed that product trials had a positive effect on attitude toward the product. Also, a negative effect on WTP was found when the effect was measured directly, but a positive effect when the effect was measured indirectly (through attitude). 相似文献
102.
Daniel Maman 《Social science research》2001,30(4):578
This article studies which directors of the largest corporations forming part of the Israeli business groups accumulated directorships within the groups between the years 1974 and 1988. A comparison is made between directors within business groups who accumulate directorships and those who do not, and in addition, the research focuses on directors who joined additional boards, questioning who gets ahead in terms of three components of social capital: organizational positions, elite positions, and social networks. The study uses logistic regression to discern which variables increase the likelihood of being invited onto an additional board within the business groups and the likelihood of getting ahead. The findings strongly support the hypothesis that the organizational position of directors, more than their elite position ties and social networks, is the most significant determinant of who will join additional boards and who will get ahead. The article is concluded with a discussion of several factors contributing to relative impact of organizational positions. 相似文献
103.
Brandon K. Burr Daniel S. Hubler Robert E. Larzelere Brandt C. Gardner 《Marriage & Family Review》2013,49(4):284-308
For years observational techniques along with other methods have sought to explore the relationships of couple interactional exchanges to marital quality and longevity. However, many of the previous methodological procedures used might be inadequate at capturing the influential micro-dimensional nuances of interpartner couple affective stability and reciprocity. This study explored the dyadic patterns in 23 married couples' continuous affect ratings during two communication episodes. Multilevel modeling was used to assess the structure in the stability of one's own affect and the influence of partner affect over 3-, 6-, and 9-second time lags. Implications regarding the use of nested models to explore patterns of actor and partner effects are discussed. 相似文献
104.
M. Daniel Bennett Jr. Sean Joe 《Journal Of Human Behavior In The Social Environment》2013,23(8):775-789
The present investigation explored risk and protective factors for suicidal ideation and behavior in a sub-sample of African American and Latino adolescents (n = 2,626) who participated in the 2004 Centers for Disease Control Youth Violence Survey. Structural equation modeling was used to explore exposure to violence at the community level as a contextual factor that could potentially influence depressive symptomatology, substance abuse, parental support, social support, and suicidality among study participants. Findings indicated that exposure to violence at the community level was not directly related to suicidality among this population of urban adolescents. However, it was directly related with several other variables under study in the model, which in turn were directly related with suicidality. Tests of invariance revealed several across-group differences, particularly by race and gender, in how the identified risk and protective factors in the model related to suicidality. Implications for research and practice with urban, ethnic minority, adolescent populations are discussed. 相似文献
105.
106.
107.
Charrettes have become popular in the urban design field, especially for use among multidisciplinary teams of professionals and non-professional community stakeholders seeking to incorporate a rich array of expertise in short visioning activities. Geographic Information Systems are among the technologies with potential to provide sophisticated spatial information to charrette participants efficiently. This article reports on a charrette carried out jointly by teams from Kobe University and the University of Washington, Seattle, USA, using GIS to inform urban design in three neighborhoods affected by the Great Hanshin–Awaji Earthquake of 1995 in Kobe, Japan. The article describes the charrette itself, and discusses the utility of GIS, given the challenges of disaster recovery in a context of undeveloped institutions for public participation, and with participants of different linguistic and educational backgrounds. In combination with electronically storable drawing technology, GIS proved useful in enlarging the multidisciplinary and cross-cultural reach of urban design; in incorporating new layers of pre-prepared expert data, and in combining such data with dynamically-generated “advice maps” and design ideas. For GIS-based charrettes to become more widely useful in community-scale design in Japan, however, additional property-scale data need to be available. 相似文献
108.
Kevin Constante Michael I. Demidenko Edward D. Huntley Deborah Rivas-Drake Daniel P. Keating Adriene M. Beltz 《Journal of research on adolescence》2023,33(1):24-42
This study examined how ethnic identity relates to large-scale brain networks implicated in social interactions, social cognition, self-definition, and cognitive control. Group Iterative Multiple Model Estimation (GIMME) was used to create sparse, person-specific networks among the default mode and frontoparietal resting-state networks in a diverse sample of 104 youths aged 17–21. Links between neural density (i.e., number of connections within and between these networks) and ethnic identity exploration and resolution were evaluated in the full sample. Ethnic identity resolution was positively related to frontoparietal network density, suggesting that having clarity about one’s ethnic group membership is associated with brain network organization reflecting cognitive control. These findings help fill a critical knowledge gap about the neural underpinnings of ethnic identity. 相似文献
109.
In many professions and personal services, a firm offers a contract with either proportional revenue sharing of the worker’s
output or a contract with 100% revenue accruing to the worker in exchange for a fixed (debt) payment. Contingent on the contract,
the worker chooses the mechanism to achieve the desired level of productivity. A higher revenue split induces the worker to
be more productive in output per hour resulting in a higher wage. The relevant price of effort is the after-split, after-tax
wage controlled for after-tax household income. Incentives through a higher split raise productivity and the return to effort.
The sample is 1,559 U.S. real estate sales professionals paid on contract splits in 2007 and choosing their hours and effort.
The compensated labor supply elasticity is positive and between approximately zero and 0.3 suggesting the absence of income
targeting for these workers on split and 100% revenue contracts. But the inclusion of contractual income split provisions
in the model substantially increases the labor supply elasticity. 相似文献
110.
Daniel Dufresne 《统计学通讯:理论与方法》2013,42(5):837-854
The family consisting of the distributions of products of two independent beta variables is extended to include cases where some of the parameters are not positive but negative or complex. This “beta product” distribution is expressible as a Meijer G function. An example (from risk theory) where such a distribution arises is given: an infinite sum of products of independent random variables is shown to have a distribution that is the product convolution of a complex-parameter beta product and an independent exponential. The distribution of the infinite sum is a new explicit solution of the stochastic equation X = (in law) B(X + C). Characterizations of some G distributions are also proved. 相似文献