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81.
Choongrak Kim Woochul Kim Byeong U. Park Changkon Hong Meeseon Jeong 《统计学通讯:理论与方法》2013,42(7):1577-1597
Although the Bezier curve is very popular in the area of computational graphics it has rarely been used by statisticians. In this paper we develop methods and techniques for use of the Bezier curve in estimation of density and regression function. Also, asymptotic mean integrated square error for both estimators are derived. Comparisons with kernel estimator are conducted using simulation. 相似文献
82.
83.
84.
C. J. Park 《统计学通讯:理论与方法》2013,42(15):1539-1544
The uniformly most powerful unbiased tests are formulated for the two sample problem of the power series distribution with unknown truncation parameter. 相似文献
85.
When the individual measurements are statistically independent, the maximum likelihood estimator calculated at the end of a sequential procedure overestimates the underlying effect. There are many clinical trials in which we are interested in comparing changes in responses between two treatment groups sequentially. Lee and DeMets (1991, JASA 86, 757–762) proposed a group sequential method for comparing rates of change when a response variable is measured for eaeh patient at successive follow-up visits. They assumed that the response follows the linear mixed effects model and derived the asymptotic joint distribution of the sequentially computed statistics. In this article, we consider the maximum likelihood estimator (MLE), the median unbiased estimator (MUE) and the midpoint of a 100(1-α)% confidence interval as point estimators for the rate of change in the linear mixed effects model, and investigate their properties by Monte Carlo simulation. 相似文献
86.
In this paper, we study the Kullback–Leibler (KL) information of a censored variable, which we will simply call it censored KL information. The censored KL information is shown to have the necessary monotonicity property in addition to inherent properties of nonnegativity and characterization. We also present a representation of the censored KL information in terms of the relative risk and study its relation with the Fisher information in censored data. Finally, we evaluate the estimated censored KL information as a goodness-of-fit test statistic. 相似文献
87.
So Yeon Leem Jin Hee Park 《East Asian Science, Technology and Society: An International Journal》2008,2(1):9-26
Many Korean women felt strongly positive about donating their eggs for Hwang Woo Suk’s research, in spite of the fact that
Hwang was accused of fraud. It is said that there is a kind of unique ‘egg donation culture’ among Korean women, which urged
them to donate their eggs for his research. However, positing such a Korean ‘egg donation culture’ does not seem to give a
sufficient explanation of why so many Korean women were seemingly willing to provide their own eggs for Hwang’s research.
Instead, we suggest that egg donation issues in the Hwang affair can be interpreted under the paradoxical context, in which
Korean women are situated in the age of biotechnology. On the one hand, the invisibility of women as subjects in the public
sphere led to their lack of social control over ova trafficking and made it possible for a huge number of eggs to be supplied
secretly for Hwang’s team. The patriarchal structure of family, the myth of economic growth, and the restricted activities
of feminist organizations are possible contributors to the invisibility of Korean women. On the other hand, in the practices
of bodily technologies such as cosmetic surgery and reproductive technologies, Korean women have been highly visible. With
the help of those technological instruments, women have been empowered to own their own bodies and to have them at their disposal.
We argue that these dualistic realities of women as egg owners can explain the egg donation culture among Korean women in
the Hwang affair.
相似文献
Jin Hee Park (Corresponding author)Email: |
88.
This paper examines generational politics in the Korean American community in Los Angeles. After outlining how the Immigration Act of 1965 led to the acceleration of generational transition in the contemporary immigrant experience, the paper focuses its attention on the entry of the post-immigrant generation into Korean American community politics. Relying on interviews and case studies, the entry of the post-immigrant generation is examined both as a source of new political resources for community mobilization as well as a new source of intra-community conflict. As greater numbers of the post-immigrant generation reach adulthood and become active in political affairs, the issue of generational politics will play an increasingly important role for shaping not only the political developments in immigrant communities but also the broader politics of the American society. 相似文献
89.
Keong-Suk Park Ik Ki Kim Hiroshi Kojima 《International Journal of Japanese Sociology》1999,8(1):93-115
Abstract This study aims to explain similarity and difference in geographic proximity between elderly parents and their children in Korea and Japan. Using data sets from two nationally representative surveys conducted in Korea and Japan, this study examines the extent to which needs and kinship of elderly parents and regional constraints influence intergenerational coresidence and nearness.
Results highlight a complex feature of intergenerational relationship in Korea and Japan. Advanced economic and health conditions of Korean elderly parents increase the likelihood of living with children. For Japanese elderly parents, however, coresidence with children is significantly likely to occur in response to their disadvantaged economic status. These results suggest that the elderly Korean are more likely than the elderly Japanese to lack not only economic and health resources but also opportunities in obtaining family support in a time of need.
Characteristics of children, however, show a similar trend between the two societies. Both societies maintain a strong son preference for extended family living arrangement. Eldest children in both societies are more likely than their siblings to live with or near elderly parents. However, children of younger cohorts in both societies are significantly more likely than those of older cohorts to maintain a disperse geographic network indicating a significant change in family attitude among different cohorts.
Finally, this study finds a more disperse family network among rural elderly parents than urban elderly parents in both societies reflecting the fact that massive rural-to-urban migration of young population has contributed to geographic segregation of kinship in these societies. 相似文献
Results highlight a complex feature of intergenerational relationship in Korea and Japan. Advanced economic and health conditions of Korean elderly parents increase the likelihood of living with children. For Japanese elderly parents, however, coresidence with children is significantly likely to occur in response to their disadvantaged economic status. These results suggest that the elderly Korean are more likely than the elderly Japanese to lack not only economic and health resources but also opportunities in obtaining family support in a time of need.
Characteristics of children, however, show a similar trend between the two societies. Both societies maintain a strong son preference for extended family living arrangement. Eldest children in both societies are more likely than their siblings to live with or near elderly parents. However, children of younger cohorts in both societies are significantly more likely than those of older cohorts to maintain a disperse geographic network indicating a significant change in family attitude among different cohorts.
Finally, this study finds a more disperse family network among rural elderly parents than urban elderly parents in both societies reflecting the fact that massive rural-to-urban migration of young population has contributed to geographic segregation of kinship in these societies. 相似文献
90.
This article investigates the characteristics of the workhouse populations in Lancashire in 1881. The analysis is based on the snapshot view provided by the 1881 census and, despite the limitations of such an approach, this large-scale survey reveals significant variations in the experience of poverty and local relief policies in a largely industrial region that had been at the forefront of the anti-poor law movement. The workhouse populations are shown to be diverse, and contrast markedly with pauper populations previously studied. Lancashire's Poor Law Unions are divided into three types: conurbation, urban industrial and rural. These three groups appear to represent three different patterns of workhouse residency. The workhouse populations in rural Lancashire are broadly similar to those discussed elsewhere, being dominated by elderly males. However, urban industrial workhouse populations contained large numbers of adults of working age and the absence of children from workhouses in the conurbation is particularly striking. 相似文献