全文获取类型
收费全文 | 115篇 |
免费 | 5篇 |
专业分类
管理学 | 10篇 |
民族学 | 1篇 |
人口学 | 11篇 |
理论方法论 | 23篇 |
综合类 | 2篇 |
社会学 | 60篇 |
统计学 | 13篇 |
出版年
2022年 | 2篇 |
2021年 | 1篇 |
2020年 | 4篇 |
2019年 | 8篇 |
2018年 | 4篇 |
2017年 | 1篇 |
2016年 | 8篇 |
2015年 | 4篇 |
2014年 | 3篇 |
2013年 | 25篇 |
2012年 | 5篇 |
2011年 | 7篇 |
2010年 | 2篇 |
2009年 | 1篇 |
2008年 | 1篇 |
2007年 | 2篇 |
2006年 | 3篇 |
2005年 | 2篇 |
2004年 | 3篇 |
2003年 | 3篇 |
2002年 | 2篇 |
2001年 | 1篇 |
1999年 | 3篇 |
1998年 | 1篇 |
1997年 | 1篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 4篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1988年 | 1篇 |
1984年 | 1篇 |
1978年 | 1篇 |
1977年 | 2篇 |
1970年 | 2篇 |
1969年 | 2篇 |
1967年 | 1篇 |
排序方式: 共有120条查询结果,搜索用时 15 毫秒
41.
The current status of and prospects for contraceptive methods is reviewed. Regulations governing the development, safety, and effectiveness of contraceptive methods are discussed, as well as the nature of the female and male reproductive system. Methods reviewed include coitus interruptus, the condom, spermicidal contraceptive agents, postcoital douching, the vaginal diaphragm, male and female sterilization, the rhythm method, oral contraceptives, IUDs, induced abortion, progesterone-releasing IUDs, postcoital estrogens, abortifacient agents (prostaglandins), immunization against human chorionic gonadotropin (HCG), pharmacologic suppression of the corpus luteum, long-acting injections of Depo-Provera, implantation of capsules containing norgestrel, the intravaginal ring, intracervical devices, release of contraceptive steroids through an arm bracelet, and male contraceptive agents. New areas of contraceptive research include influencing the release of luteininzing hormone-releasing hormone, 'turning-off' corpus luteum function in early pregnancy by competitors for HCG, affecting sperm or ovarian membranes to prevent fertilization, and interferring with sperm and egg development. 相似文献
42.
Nowitz L 《Journal of gerontological social work》2005,45(1-2):185-201
Geriatric care managers face a complex task of helping families negotiate challenges of caring for frail elders and meeting everyday practical needs. At the same time care managers can respond to clients and families with acknowledgment of the spiritual dimension of caregiving. By being fully present to the suffering of families and elders, care managers can experience their own spiritual growth and can offer help to others at the same time. 相似文献
43.
Japan passed its Child Abuse Prevention Act on 20 November 2000. In these early years following the passage of this Act, it is especially important to attempt to define what constitutes child abuse. Definitions and practical responses may be coloured by perceptions of service providers, and since professional culture is believed to influence individuals, this study compared the perceptions of (a) social workers, (b) physicians, (c) lawyers, and (d) the general public. Results suggested less disagreement in perceptions than was anticipated. When differences were observed, they were correlated more frequently with age and gender rather than with profession. 相似文献
44.
In this paper, we establish the optimal size of the choice sets in generic choice experiments for asymmetric attributes when estimating main effects only. We give an upper bound for the determinant of the information matrix when estimating main effects and all two-factor interactions for binary attributes. We also derive the information matrix for a choice experiment in which the choice sets are of different sizes and use this to determine the optimal sizes for the choice sets. 相似文献
45.
We consider a nonparametric autoregression model under conditional heteroscedasticity with the aim to test whether the innovation distribution changes in time. To this end, we develop an asymptotic expansion for the sequential empirical process of nonparametrically estimated innovations (residuals). We suggest a Kolmogorov–Smirnov statistic based on the difference of the estimated innovation distributions built from the first ?ns?and the last n ? ?ns? residuals, respectively (0 ≤ s ≤ 1). Weak convergence of the underlying stochastic process to a Gaussian process is proved under the null hypothesis of no change point. The result implies that the test is asymptotically distribution‐free. Consistency against fixed alternatives is shown. The small sample performance of the proposed test is investigated in a simulation study and the test is applied to a data example. 相似文献
46.
A reasonable level of risk aversion with respect to small gambles leads to a high, and absurd, level of risk aversion with
respect to large gambles. This was demonstrated by Rabin (Econometrica 68:1281–1292, 2000) for expected utility theory. Later, Safra and Segal (Econometrica, 2008) extended this result by showing that similar arguments apply to many non-expected utility theories, provided they are Gateaux
differentiable. In this paper we drop the differentiability assumption and by restricting attention to betweenness theories
we show that much weaker conditions are sufficient for the derivation of similar calibration results.
相似文献
Uzi Segal (Corresponding author)Email: |
47.
The economic implications of increasing life expectancy are important concerns for governments in developed countries. The aims of this study were as follows: (i) to forecast mortality for 14 developed countries from 2010 to 2050, using the Poisson Common Factor Model; (ii) to project the effects of the forecast mortality patterns on support ratios; and (iii) to calculate labour force participation increases which could offset these effects. The forecast gains in life expectancy correlate negatively with current fertility. Pre-2050 support ratios are projected to fall most in Japan and east-central and southern Europe, and least in Sweden and Australia. A post-2050 recovery is projected for most east-central and southern European countries. The increases in labour force participation needed to counterbalance the effects of mortality improvement are greatest for Japan, Poland, and the Czech Republic, and least for the USA, Canada, Netherlands, and Sweden. The policy implications are discussed. 相似文献
48.
49.
Melanie Randle Leonie Miller Sara Dolnicar Joseph Ciarrochi 《Australian Social Work》2013,66(3):382-397
Abstract Although Australia is experiencing a shortage of foster carers, there is currently little understanding of why people do not become carers. This study explores the reasons given for not fostering though a survey of 897 non carers. Results indicate that, at the aggregate level, people do not become carers because they do not know anything about fostering, or because they are busy with their own children, work, or commitments to family and friends. However, if we account for heterogeneity, differences in these barriers are observed for subgroups within the sample. We investigate the structure of the market of potential foster carers by segmenting the market using cultural background as the segmentation base. Results indicate that the reasons for not fostering differ depending on the subgroup being examined. Theoretically, this suggests that heterogeneity exists within the foster care market, and that examining barriers to foster care only at the aggregate level neglects the importance of individual subsegment characteristics. Practically, results are important because they suggest that generic marketing campaigns aimed at the entire community have limited effect and that customised strategies are required to attract the particular types of carers most needed. 相似文献
50.
Elizabeth A. Segal 《Journal of social service research》2013,39(3):266-277
ABSTRACT A model of social empathy is described where social empathy is defined as the ability to more deeply understand people by perceiving or experiencing their life situations and as a result gain insight into structural inequalities and disparities. The three components of the model—individual empathy, contextual understanding, and social responsibility—are explored and explained. Social empathy provides a framework for more effective social policies that address disparities and support social and economic justice for all people. Social workers are well positioned to enhance social empathy, and application and suggestions for further enhancement and research are provided. 相似文献