全文获取类型
收费全文 | 3683篇 |
免费 | 101篇 |
专业分类
管理学 | 565篇 |
民族学 | 32篇 |
人才学 | 1篇 |
人口学 | 337篇 |
丛书文集 | 31篇 |
理论方法论 | 359篇 |
综合类 | 21篇 |
社会学 | 1901篇 |
统计学 | 537篇 |
出版年
2023年 | 18篇 |
2021年 | 23篇 |
2020年 | 55篇 |
2019年 | 78篇 |
2018年 | 77篇 |
2017年 | 102篇 |
2016年 | 94篇 |
2015年 | 81篇 |
2014年 | 79篇 |
2013年 | 700篇 |
2012年 | 92篇 |
2011年 | 109篇 |
2010年 | 92篇 |
2009年 | 76篇 |
2008年 | 115篇 |
2007年 | 116篇 |
2006年 | 81篇 |
2005年 | 92篇 |
2004年 | 92篇 |
2003年 | 90篇 |
2002年 | 118篇 |
2001年 | 84篇 |
2000年 | 83篇 |
1999年 | 65篇 |
1998年 | 58篇 |
1997年 | 58篇 |
1996年 | 47篇 |
1995年 | 61篇 |
1994年 | 54篇 |
1993年 | 50篇 |
1992年 | 45篇 |
1991年 | 52篇 |
1990年 | 42篇 |
1989年 | 41篇 |
1988年 | 59篇 |
1987年 | 59篇 |
1986年 | 26篇 |
1985年 | 39篇 |
1984年 | 46篇 |
1983年 | 58篇 |
1982年 | 32篇 |
1981年 | 35篇 |
1980年 | 29篇 |
1979年 | 34篇 |
1978年 | 39篇 |
1977年 | 31篇 |
1976年 | 35篇 |
1975年 | 28篇 |
1974年 | 18篇 |
1972年 | 17篇 |
排序方式: 共有3784条查询结果,搜索用时 437 毫秒
201.
202.
A substantial portion of gamblers in treatment may have co-occurring mental health disorders including substance use disorders, especially alcohol dependency, personality disorders, affective disorders, anxiety disorders and impulse control disorders. Co-occurring mental health disorders affect treatment seeking, the treatment process and its outcome, quality of life and functioning in many mental health disorders. Participants in this study were 78 adults enrolled in state-supported out-patient services for pathological gambling and current Gamblers Anonymous attendees. The majority of participants (76.6%) had co-occurring behaviours; 55.8% had multiple co-occurring behaviours. Participants with multiple co-occurring behaviours were more likely to report that a co-occurring behaviour increased the severity of their gambling symptoms. A dose/response relationship between number of co-occurring behaviours and severity of gambling problems was found. Co-occurring behaviours can interact with gambling behaviour. Brief, validated screening instruments are available for screening and diagnosing co-occurring behaviours among gamblers presenting for treatment. 相似文献
203.
204.
This paper surveys recent developments in the strong law of large numbers for dependent heterogeneous processes. We prove a generalised version of a recent strong law for Lz-mixingales, and also a new strong law for Lpmixingales. These results greatly relax the dependence and heterogeneity conditions relative to those currently cited, and introduce explicit trade-offs between dependence and heterogeneity. The results are applied to proving strong laws for near-epoch dependent functions of mixing processes. We contrast several methods for obtaining these results, including mapping directly to the mixingale properties, and applying a truncation argument. 相似文献
205.
206.
Overdispersion is a common phenomenon in actual data sets. It is important to have methods of dealing with extra variation in regression situations. This article develops tests for extra-negative binomial variation and gives some numerical methods to deal with it. Simulations show power comparisons between some of the overdispersion tests discussed. Finally, an example is given to demonstrate the methods. 相似文献
207.
James J. Walsh John M. Wilding Michael W. Eysenck John D. Valentine 《Work and stress》2013,27(2):148-159
Abstract The aim of this study was to investigate the relationship between individual differences in personality and susceptibility to stress in the workplace. Stress in lecturers employed by a computer training organization was assessed by means of self-report and measurement of salivary cortisol output during lecturing and non-lecturing weeks. Neuroticism, Type A behaviour pattern and locus of control were measured. Self-reported stress was found to be much greater during lecturing weeks, but cortisol levels were unaffected by working conditions. There was a significant positive correlation between neuroticism and locus of control and a negative correlation between locus of control and Type A behaviour pattern that approached significance. Multiple regression was employed to explore relations between personality and stress. Subjects with lower neuroticism scores yielded a bigger increase in reported stress, in the lecturing compared with the non-lecturing week, than subjects with high neuroticism scores. Type B subjects showed a progressive decrease in cortisol over the working week while Type A counterparts showed a resurgence of cortisol towards the end of the week. Finally, Type B subjects having an internal locus of control showed a faster decline in cortisol level during the lecturing week than the other subjects. Implications of these results are discussed in terms of the importance simultaneously incorporating a variety of individual differences in personality dimensions and stress indices in research designs. 相似文献
208.
Jeryl L. Mumpower Liu Shi James W. Stoutenborough Arnold Vedlitz 《Risk analysis》2013,33(10):1802-1811
A 2009 national telephone survey of 924 U.S. adults assessed perceptions of terrorism and homeland security issues. Respondents rated severity of effects, level of understanding, number affected, and likelihood of four terrorist threats: poisoned water supply; explosion of a small nuclear device in a major U.S. city; an airplane attack similar to 9/11; and explosion of a bomb in a building, train, subway, or highway. Respondents rated perceived risk and willingness to pay (WTP) for dealing with each threat. Demographic, attitudinal, and party affiliation data were collected. Respondents rated bomb as highest in perceived risk but gave the highest WTP ratings to nuclear device. For both perceived risk and WTP, psychometric variables were far stronger predictors than were demographic ones. OLS regression analyses using both types of variables to predict perceived risk found only two significant demographic predictors for any threat—Democrat (a negative predictor for bomb) and white male (a significant positive predictor for airline attack). In contrast, among psychometric variables, severity, number affected, and likelihood were predictors of all four threats and level of understanding was a predictor for one. For WTP, education was a negative predictor for three threats; no other demographic variables were significant predictors for any threat. Among psychometric variables, perceived risk and number affected were positive predictors of WTP for all four threats; severity and likelihood were predictors for three; level of understanding was a significant predictor for two. 相似文献
209.
Adult dialect acquisition is typically studied in relatively idiosyncratic situations where adults happen to move to another community. But how does dialect acquisition play out in indigenous minority societies that have systemic adult migration due to exogamy? Do the in‐married spouses acquire the local variety? Why or why not? How much do they acquire? We investigated an indigenous Zhuang community in southern China. Sociophonetic analyses of in‐married women and local villagers show that the in‐married women acquired the local variety in most respects but not in aspirated consonants. To the limits of their phonological ability as adult learners, the wives followed the local sociolinguistic norm: they acquired the husbands’ variety. By contrast, in societies experiencing greater external cross‐cultural contact, exogamous women sometimes use their liminal status to challenge such gendered sociolinguistic expectations. Comparing the present study with outcomes in different societies, we lay the foundation for a typology of the sociolinguistics of exogamy. In this way, we help expand the study of language and gender toward new horizons and under‐represented social settings. 相似文献
210.
James M. Lucas 《The American statistician》2013,67(2):77-78
A plot of each ranking of N objects in N-dimensional space is shown to provide geometric interpretations of Kendall's tau and Spearman's rho and also of the relationship of rho to a sum of inversion weights. The computation of rho from a sum of inversion weights is shown to allow sequential calculation of rho. 相似文献