全文获取类型
收费全文 | 1545篇 |
免费 | 92篇 |
国内免费 | 1篇 |
专业分类
管理学 | 183篇 |
民族学 | 9篇 |
人口学 | 142篇 |
丛书文集 | 21篇 |
理论方法论 | 232篇 |
综合类 | 52篇 |
社会学 | 641篇 |
统计学 | 358篇 |
出版年
2024年 | 4篇 |
2023年 | 25篇 |
2022年 | 16篇 |
2021年 | 23篇 |
2020年 | 53篇 |
2019年 | 90篇 |
2018年 | 88篇 |
2017年 | 107篇 |
2016年 | 82篇 |
2015年 | 58篇 |
2014年 | 71篇 |
2013年 | 312篇 |
2012年 | 74篇 |
2011年 | 65篇 |
2010年 | 73篇 |
2009年 | 54篇 |
2008年 | 61篇 |
2007年 | 45篇 |
2006年 | 40篇 |
2005年 | 31篇 |
2004年 | 33篇 |
2003年 | 37篇 |
2002年 | 16篇 |
2001年 | 13篇 |
2000年 | 15篇 |
1999年 | 14篇 |
1998年 | 15篇 |
1997年 | 11篇 |
1996年 | 15篇 |
1995年 | 5篇 |
1994年 | 10篇 |
1993年 | 12篇 |
1992年 | 13篇 |
1991年 | 3篇 |
1990年 | 8篇 |
1989年 | 8篇 |
1988年 | 4篇 |
1987年 | 2篇 |
1986年 | 3篇 |
1985年 | 3篇 |
1984年 | 5篇 |
1983年 | 2篇 |
1982年 | 4篇 |
1981年 | 6篇 |
1980年 | 3篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有1638条查询结果,搜索用时 15 毫秒
131.
This study expands immigrant social network theory and examined employment patterns in the garment industry in Los Angeles, California, among Latino workers employed by Asian immigrant entrepreneurs. The study determined that a large percentage of immigrant employees found their jobs through the immigrant economy. Entrepreneurship increased the supply of local jobs and expanded the economy at destination at no expense to natives. Immigrant entrepreneurs bought firms from nonimmigrant owners or started new ones with an immigrant labor supply. Massey's index is flawed due to its exclusion of the role of entrepreneurs. Migration networks facilitate entrepreneurship, but some ethnic groups have fewer entrepreneurs, such as Mexicans and Central Americans. A 1993 Los Angeles survey identified 3642 garment factories in its county. Mean employment was 27.1 persons. The garment industry was the 4th largest industry in the area in 1996, with 98,700 employees. It represented 6% of all wage and salary employees in the City and 5.5% of the immigrant labor force in the County in 1990. 93% of garment workers in 1990 were immigrants. It is estimated that 51% of garment factory owners were Asians; most employees were Latinos. Census figures on sewing machine operators indicated 47.3% of owners were Whites and 42.45 were Asians. 53.3% of employees were other ethnic groups, 14.5% were Asians, and 32.2% were Whites. It is estimated that 47.2% of total employment was due to the immigration economy. 71.5% of the total employment in the garment industry was in the immigrant sector. 相似文献
132.
AbstractThe promise of digitalization is enormous and nowhere is it more critical than in its potential to transform food supply chain. Consumers have become more educated and are demanding real-time updated information on foods they consumed through digital media. They are also increasingly demanding to know if the foods they consume are environmentally and socially sustainable or not. As a result, food product traceability, safety, and sustainability issues have become crucial concerns to food retailers, distributors, processors, and farmers. Digitalization allows food supply chains to be highly connected, efficient, and responsive to customer needs and regulation requirements. However, digitalizing a traditional food supply chain is challenging and resource demanding. This is more so for developing countries where moving food from farms to consumers can take months as it travels through an array of middlemen. Unfortunately, little is available in the existing literature on food supply chain digitalization. So far, current researchers mainly explore the benefits of digitalization. Using cases in three companies, this paper explores the practices, challenges, and opportunities faced by Thailand food manufacturers in digitalizing their food supply chains. A framework for food supply chain digitalization is proposed and its implications for research and practices are discussed. 相似文献
133.
134.
135.
Combining Food Frequency and Survey Data to Quantify Long-Term Dietary Exposure: A Methyl Mercury Case Study 总被引:2,自引:0,他引:2
Twenty-four-hour recall data from the Continuing Survey of Food Intake by Individuals (CSFII) are frequently used to estimate dietary exposure for risk assessment. Food frequency questionnaires are traditional instruments of epidemiological research; however, their application in dietary exposure and risk assessment has been limited. This article presents a probabilistic method of bridging the National Health and Nutrition Examination Survey (NHANES) food frequency and the CSFII data to estimate longitudinal (usual) intake, using a case study of seafood mercury exposures for two population subgroups (females 16 to 49 years and children 1 to 5 years). Two hundred forty-nine CSFII food codes were mapped into 28 NHANES fish/shellfish categories. FDA and state/local seafood mercury data were used. A uniform distribution with minimum and maximum blood-diet ratios of 0.66 to 1.07 was assumed. A probabilistic assessment was conducted to estimate distributions of individual 30-day average daily fish/shellfish intakes, methyl mercury exposure, and blood levels. The upper percentile estimates of fish and shellfish intakes based on the 30-day daily averages were lower than those based on two- and three-day daily averages. These results support previous findings that distributions of "usual" intakes based on a small number of consumption days provide overestimates in the upper percentiles. About 10% of the females (16 to 49 years) and children (1 to 5 years) may be exposed to mercury levels above the EPA's RfD. The predicted 75th and 90th percentile blood mercury levels for the females in the 16-to-49-year group were similar to those reported by NHANES. The predicted 90th percentile blood mercury levels for children in the 1-to-5-year subgroup was similar to NHANES and the 75th percentile estimates were slightly above the NHANES. 相似文献
136.
To serve Korean American families effectively, marriage and family therapists need to develop a level of cultural competence. This content analysis of the relevant treatment literature was conducted to discover the most common expert recommendations for family therapy with Asian Americans and to examine their application to Korean Americans. Eleven specific guidelines were generated: Assess support systems, assess immigration history establish professional credibility, provide role induction, facilitate "saving face," accept somatic complaints, be present/problem focused, be directive, respect family structure, be nonconfrontational, and provide positive reframes. Empirical support (clinical and nonclinical research) and conceptual support for each guideline are discussed, and conclusions are reached regarding culturally competent therapy with Korean American families. 相似文献
137.
Best practice in couple relationship education 总被引:1,自引:1,他引:0
Relationship education is widely available to couples and is intended to reduce the prevalence of relationship distress, divorce, and the associated personal and social costs. To realize the potential benefits of couple relationship education, it needs to be evidence-based, offered in ways that attract couples at high-risk for relationship problems, and focused on factors that put couples at high-risk for future relationship problems. 相似文献
138.
Heavy episodic drinking and college entrance 总被引:1,自引:0,他引:1
The college environment appears to encourage heavy drinking. Consequently, correlates of student drinking were assessed at college entrance. First-semester freshmen (N = 520, 54 percent women) completed self-report measures of social affiliation and self/peer drinking for high school and college. Analyses indicated that: 1) increased drinking at college entrance mirrored perceived increases by peers, 2) perceptions of peer drinking were robustly overestimated with women displaying the larger overestimation bias; and 3) social affiliation was associated with men's drinking and moderated its relation to perceived peer drinking at college entrance. These results advance understanding of the manner in which heavy drinking patterns emerge as men and women enter college, and campus programs that consider these factors may better promote health and reduce the harms associated with heavy drinking among college students. 相似文献
139.
Chabora N Judge-Gorny M Grogan K 《Journal of psychosocial nursing and mental health services》2003,41(1):22-28
In this article, the Four S Model is presented as a working clinical framework for generating structured nursing interventions and treatment plans. The de-escalation process, formalized by the De-escalation/Alternative to Restraint Flowsheet, is one way in which the model is being operationalized to reduce seclusion and restraints. As shown by the flowsheet, the model allows for integration of mental health and mental illness. It spans the scope of nursing practice at all levels, from para-professional to advanced practice nurse, by integrating the mental health concepts of communication, leadership, clinical judgement, critical thinking, and caring within its framework. Most important, the flexibility to individualize treatment that is built into the model allows for generalization to all psychiatric presentations. 相似文献
140.
Myungsoo Kim 《International Journal of Japanese Sociology》2003,12(1):6-16
Abstract: There are plenty of stereotypical discourses concerning the Korean minority in Japan that are widely accepted, not because of their plausibility, but because of the lack of basic empirical data. In order to fill this intellectual vacuum, I conducted a social stratification and mobility survey focusing on resident Korean men in 1995, comparable with the Japanese sample. The purpose of this article is exploratory rather than aimed at hypothesis testing, given the extreme paucity of the earlier empirical data for the ana‐lysis of Korean minority status attainment. The results show that:
- 1 For the Korean minority in Japan, class resources translate into educational attainment to a much lower extent than for the Japanese.
- 2 Korean status attainment patterns deviate from those of their Japanese counterparts. For the Japanese, the crucial status attainment path is secured through educational attainment, which is not the case among Koreans.
- 3 Despite being denied access to such mainstream status attainment paths, major status indicators for Koreans are not significantly different than those of Japanese, and regarding this equality of outcomes, one of the possible explanations is that Korean ethnic disadvantages in the status attainment process may have been overcome by mobilizing informal bilateral ethnic networks.