全文获取类型
收费全文 | 502篇 |
免费 | 11篇 |
专业分类
管理学 | 72篇 |
民族学 | 1篇 |
人口学 | 42篇 |
理论方法论 | 62篇 |
综合类 | 3篇 |
社会学 | 281篇 |
统计学 | 52篇 |
出版年
2023年 | 6篇 |
2021年 | 6篇 |
2020年 | 10篇 |
2019年 | 13篇 |
2018年 | 9篇 |
2017年 | 6篇 |
2016年 | 8篇 |
2015年 | 8篇 |
2014年 | 11篇 |
2013年 | 61篇 |
2012年 | 21篇 |
2011年 | 17篇 |
2010年 | 16篇 |
2009年 | 12篇 |
2008年 | 9篇 |
2007年 | 20篇 |
2006年 | 15篇 |
2005年 | 22篇 |
2004年 | 11篇 |
2003年 | 13篇 |
2002年 | 4篇 |
2001年 | 13篇 |
2000年 | 14篇 |
1999年 | 7篇 |
1998年 | 4篇 |
1997年 | 9篇 |
1996年 | 11篇 |
1995年 | 6篇 |
1994年 | 10篇 |
1993年 | 6篇 |
1992年 | 9篇 |
1991年 | 15篇 |
1989年 | 5篇 |
1988年 | 5篇 |
1987年 | 9篇 |
1986年 | 8篇 |
1985年 | 4篇 |
1984年 | 6篇 |
1983年 | 7篇 |
1982年 | 4篇 |
1981年 | 6篇 |
1980年 | 8篇 |
1978年 | 7篇 |
1977年 | 3篇 |
1976年 | 5篇 |
1975年 | 5篇 |
1974年 | 7篇 |
1972年 | 5篇 |
1971年 | 3篇 |
1967年 | 2篇 |
排序方式: 共有513条查询结果,搜索用时 15 毫秒
131.
Over the past decade, public concern about racial profiling and racially disparate treatment of drivers during routine traffic stops has become a critical issue facing law enforcement. Racial disparities in traffic stops, citations and searches impose serious costs on minority citizens and can strain relationships between community members and the police. Over the past decade, researchers, police administrators and legal advocates have employed various methodologies to measure whether or not, and under what conditions, racial profiling exists. Despite a proliferation of research on the subject, many questions about how to best measure racial profiling remain unanswered. This study provides an overview of the problem of racial profiling and discusses the strengths and limitations of the most common research strategies that have been used to identify and measure the prevalence of the problem. 相似文献
132.
133.
134.
135.
The Analysis of Verbal Behavior - 相似文献
136.
Binge drinking and alcohol-related problems among community college students: implications for prevention policy 总被引:1,自引:0,他引:1
Sheffield FD Darkes J Del Boca FK Goldman MS 《Journal of American college health : J of ACH》2005,54(3):137-141
Binge drinking and alcohol-related problems among students at traditional 4-year universities have been well documented. However, little is known about the frequency of their such behaviors and its consequences among community college students, who comprise roughly 44% of all undergraduate students in the United States. The present study examined binge drinking and alcohol-related problems in 762 (61% female) ethnically diverse (65% Caucasian, 20% Hispanic, 9% African American) community college students (mean age = 26.23, SD = 7.81). Based on gender-specific criteria, 25% engaged in binge drinking. As compared to nonbingers and current abstainers, bingers had higher rates of drinking-related problems. The implications of these findings for research and for prevention/intervention programs are discussed. 相似文献
137.
Anna Ingeborg Petursdottir James E Carr Jack Michael 《The Analysis of verbal behavior》2005,21(1):59-74
According to Skinner''s (1957) analysis of verbal behavior, the mand and the tact are functionally independent verbal operants, each of which is acquired through a unique history of reinforcement. The present study attempted to replicate the findings of Lamarre and Holland (1985), who empirically demonstrated functional independence of mands and tacts in typically developing preschool children. Five children participated. All were initially trained to complete two 4-piece assembly tasks. Four children were then trained to tact the four pieces that comprised one of the assembly tasks, and to mand for the four pieces that comprised the other task, using arbitrary vocal response forms. The remaining child received tact training only, and only on one task. The effects of training on the untrained operant were evaluated in a multiple-probe design across tasks. Following mand training, 4 out of 4 children reliably emitted tacts under testing conditions, while the effects of tact training differed across participants. The results differ from those of Lamarre and Holland, but are not necessarily surprising from the point of view of either Skinner''s analysis or more recent behavioral accounts of language. Future research should attempt to identify variables that affect transfer between mand and tact relations. 相似文献
138.
139.
140.
Jack A Fuller 《Omega》1978,6(6):479-484
The portion of business problems which lend themselves to solution by existing optimization techniques are a minor subset of the business problems which can be defined and attacked by logical devices. Heuristics simplify the environment of the decision maker by permitting him to make decisions quickly without considering the innumerable ways that each decision could be made. This paper compares the heuristic programming approach to more traditional operations research techniques of decision making. 相似文献