全文获取类型
收费全文 | 587篇 |
免费 | 12篇 |
专业分类
管理学 | 61篇 |
民族学 | 6篇 |
人口学 | 38篇 |
丛书文集 | 1篇 |
理论方法论 | 26篇 |
综合类 | 3篇 |
社会学 | 124篇 |
统计学 | 340篇 |
出版年
2023年 | 6篇 |
2022年 | 5篇 |
2021年 | 8篇 |
2020年 | 20篇 |
2019年 | 23篇 |
2018年 | 33篇 |
2017年 | 47篇 |
2016年 | 23篇 |
2015年 | 10篇 |
2014年 | 17篇 |
2013年 | 170篇 |
2012年 | 16篇 |
2011年 | 5篇 |
2010年 | 18篇 |
2009年 | 18篇 |
2008年 | 12篇 |
2007年 | 8篇 |
2006年 | 6篇 |
2005年 | 11篇 |
2004年 | 5篇 |
2003年 | 6篇 |
2002年 | 13篇 |
2001年 | 8篇 |
2000年 | 7篇 |
1999年 | 12篇 |
1998年 | 5篇 |
1997年 | 5篇 |
1996年 | 6篇 |
1995年 | 6篇 |
1992年 | 5篇 |
1991年 | 6篇 |
1990年 | 2篇 |
1989年 | 2篇 |
1988年 | 4篇 |
1987年 | 2篇 |
1985年 | 3篇 |
1984年 | 3篇 |
1983年 | 2篇 |
1982年 | 11篇 |
1981年 | 3篇 |
1980年 | 6篇 |
1979年 | 3篇 |
1978年 | 4篇 |
1977年 | 5篇 |
1976年 | 2篇 |
1975年 | 1篇 |
1973年 | 1篇 |
1972年 | 3篇 |
1969年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有599条查询结果,搜索用时 15 毫秒
1.
2.
Previous studies have shown that 7.5‐month‐olds can track and encode words in fluent speech, but they fail to equate instances of a word that contrast in talker gender, vocal affect, and fundamental frequency. By 10.5 months, they succeed at generalizing across such variability, marking a clear transition period during which infants' word recognition skills become qualitatively more mature. Here we explore the role of word familiarity in this critical transition and, in particular, whether words that occur frequently in a child's listening environment (i.e., “Mommy” and “Daddy”) are more easily recognized when they differ in surface characteristics than those that infants have not previously encountered (termed nonwords). Results demonstrate that words are segmented from continuous speech in a more linguistically mature fashion than nonwords at 7.5 months, but at 10.5 months, both words and nonwords are segmented in a relatively mature fashion. These findings suggest that early word recognition is facilitated in cases where infants have had significant exposure to items, but at later stages, infants are able to segment items regardless of their presumed familiarity. 相似文献
3.
The problem of estimating the value of an x variable for a given proportion of an observed value of the y variable is consdered for a non-linear model. Asymptotic confidence limits are obtained and an application of the method is illustrated witreal data. 相似文献
4.
Patrick J. Farrell Sarjinder Singh 《Australian & New Zealand Journal of Statistics》2005,47(3):375-383
In survey sampling, interest often centres on inference for the population total using information about an auxiliary variable. The variance of the estimator used plays a key role in such inference. This study develops a new set of higher‐order constraints for the calibration of estimators of variance for various estimators of the population total. The proposed strategy requires an appropriate model for describing the relationship between the response and auxiliary variable, and the variance of the auxiliary variable. It is therefore referred to as a model‐assisted approach. Several new estimators of variance, including the higher‐order calibration estimators of the variance of the ratio and regression estimators suggested by Singh, Horn & Yu and Sitter & Wu are special cases of the proposed technique. The paper presents and discusses the results of an empirical study to compare the performance of the proposed estimators and existing counterparts. 相似文献
5.
Anand Singh 《Asian Ethnicity》2008,9(1):5-16
This paper is inspired by three issues, namely ongoing research on South Africans of Indian origin, the anecdotal evidence that accumulates through ongoing discussions on a casual level with such people and the increasing interest among researchers about how globalization and transnational movements are impacting upon identity formation among minorities who are seeking employment or a new life in the developed economies of the ‘big five’ English-speaking countries, i.e. the USA, Canada, Australia, New Zealand and the UK. It is in countries such as these that a third identity emerges and develops to instill a sense of triple identity. The information here suggests that, when people of Indian origin migrate to one of these countries, they continue to cling to South Africa because it is their country of birth, as well as to India, more for sentimental rather than practical reasons. The topic of this paper reflects a contemporary phenomenon not just among the Indians in South Africa, but also among other diasporas such as Chinese in Latin America, whose new and final emigration destination always seems to be the US. In addition, people of Chinese origin in the countries of Indochina, such as Vietnam, Laos and Cambodia, experienced similar patterns of becoming diasporas in Europe, North America and Oceania in the 1970s. However, migration implores them to renegotiate their identities in order to adapt and settle in accordance with their newly adopted host territories. This gives rise to an identity that straddles three countries, which induces the need to examine new ways of identity building in a global transnational economy. 相似文献
6.
7.
Rural household survey data in the Ludhiana district of the Indian Punjab was used to study the nature and role of remittances in rural development. Of the 1646 outmigrants from the area since 1961, the 949 women who migrated for marriage and children under 12 years old were excluded from the study. Nearly all husbands who outmigrated had sent remittances. Parents and grandparents were 2nd and 3rd most likely to remit, but their numbers were small. Education did not correlate with remittance. Distance and time since emigration did not affect remittance. The frequency and the size of remittances are discussed. Remittances to outmigrants were insignificant. The remittances from outmigrants seem to raise the incomes and the levels of living of rural households. The remittances serve the purpose of redistributing income from urban to rural areas. Remittances also widened the gap between rich and poor in the rural areas because the better-off groups were more likely to receive remittances than the poorer groups. Most of the money sent from outmigrants was spent on consumable goods, food and clothing. Only a small proportion was spent on productive investment. This was usually done by farming families who invested in land or farm necessities. It is concluded that remittances from outmigrants can have a positive effect on the rural economies. Investment opportunities for nonagricultural families must be provided. 相似文献
8.
9.
10.
We examine the impact of firm-level governance structure on the innovation and internationalization strategies of emerging market firms. We propose that in the case of emerging market firms, governance is a response to the prevailing institutional environment and affects the innovation and internationalization strategies of firms. Based on a longitudinal sample of 16,337 firm-year observations of Indian listed firms over a year time period from 2002 to 2009, we find a positive effect of family ownership and group affiliation on R&D intensity and new foreign investments. Institutional ownership also positively affects new foreign investments, but has no effect on R&D intensity. Further, we find that R&D intensity interacts with family ownership, institutional ownership and group affiliation in affecting new foreign investments. 相似文献