全文获取类型
收费全文 | 21730篇 |
免费 | 383篇 |
专业分类
管理学 | 2686篇 |
民族学 | 130篇 |
人才学 | 7篇 |
人口学 | 2016篇 |
丛书文集 | 131篇 |
教育普及 | 2篇 |
理论方法论 | 1995篇 |
现状及发展 | 1篇 |
综合类 | 253篇 |
社会学 | 10810篇 |
统计学 | 4082篇 |
出版年
2023年 | 126篇 |
2021年 | 128篇 |
2020年 | 352篇 |
2019年 | 522篇 |
2018年 | 521篇 |
2017年 | 721篇 |
2016年 | 528篇 |
2015年 | 425篇 |
2014年 | 498篇 |
2013年 | 3717篇 |
2012年 | 728篇 |
2011年 | 652篇 |
2010年 | 535篇 |
2009年 | 488篇 |
2008年 | 589篇 |
2007年 | 591篇 |
2006年 | 523篇 |
2005年 | 498篇 |
2004年 | 492篇 |
2003年 | 454篇 |
2002年 | 488篇 |
2001年 | 539篇 |
2000年 | 454篇 |
1999年 | 430篇 |
1998年 | 358篇 |
1997年 | 330篇 |
1996年 | 328篇 |
1995年 | 320篇 |
1994年 | 304篇 |
1993年 | 293篇 |
1992年 | 330篇 |
1991年 | 332篇 |
1990年 | 293篇 |
1989年 | 290篇 |
1988年 | 299篇 |
1987年 | 273篇 |
1986年 | 242篇 |
1985年 | 279篇 |
1984年 | 274篇 |
1983年 | 279篇 |
1982年 | 203篇 |
1981年 | 187篇 |
1980年 | 198篇 |
1979年 | 201篇 |
1978年 | 176篇 |
1977年 | 169篇 |
1976年 | 152篇 |
1975年 | 142篇 |
1974年 | 110篇 |
1973年 | 90篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
That sociology subscribes to certain popular myths and has aligned itself with the welfare of some groups over others complicates
research into social control. This is especially so when the research deals with stereotypes and their effects on differential
legal treatment. That the discipline has historically taken sides regarding certain commonly held stereotypes and been supportive
of certain groups, means that findings that challenge those stereotypes or that are viewed as detrimental to the supported
groups are brought into question. Our research on a regulatory mechanism of social control—the Black Book, a list of persons
excluded from licensed gaming in Nevada because of their perceived threat to the industry—is illustrative of these complications.
Our findings that the Black Book is largely symbolic and is applied discriminatorily challenge not only beliefs in its efficacy
but certain myths and allegiances within sociology. That a group sociologically identified with the problem was discriminated
against, and that a well-protected group elicited preferential treatment at the hands of regulators who identify with them
have been particularly problematic for the acceptance of the findings. We argue here that debunking myth and value neutrality
are essential to scientific endeavor and should override such disciplinary tendencies toward the tolerance and protection
of some groups over others.
Her research has dealt with aspects of culture, organized crime, and social elites. She is currently working on a book on
high society and thoroughbred racing.
His publications have dealt with issues of labeling and secondary deviation, the role of stereotypes in the legal process,
and the legal reaction to corporate crime. 相似文献
32.
Emmanuelle Cam Bernard Cadiou James E. Hines Jean Yves Monnat 《Journal of applied statistics》2002,29(1):163-185
Many studies have provided evidence that, in birds, inexperienced breeders have a lower probability of breeding successfully. This is often explained by lack of skills and knowledge, and sometimes late laying dates in the first breeding attempt. There is growing evidence that in many species with deferred reproduction, some prebreeders attend breeding places, acquire territories and form pairs. Several behavioural tactics assumed to be associated with territory acquisition have been described in different species. These tactics may influence the probability of recruiting in the breeding segment of the population, age of first breeding, and reproductive success in the first breeding attempt. Here we addressed the influence of behaviour ('squatting') during the prebreeding period on demographic parameters (survival and recruitment probability) in a long-lived colonial seabird species: the kittiwake. We also investigated the influence of behaviour on reproductive trajectory. Squatters have a higher survival and recruitment probability, and a higher probability of breeding successfully in the first breeding attempt in all age-classes where this category is represented. The influence of behaviour is mainly expressed in the first reproduction. However, there is a relationship between breeding success in the first occasion and subsequent occasions. The influence of breeding success in the first breeding attempt on the rest of the trajectory may indirectly reflect the influence of behaviour on breeding success in the first occasion. The shape of the reproductive trajectory is influenced by behaviour and age of first breeding. There is substantial individual variation from the mean reproductive trajectory, which is accounted for by heterogeneity in performance among individuals in the first attempt, but there is no evidence of individual heterogeneity in the rate of change over time in performance in subsequent breeding occasions 相似文献
33.
Abstract Consumer concerns over pesticide residues and food additives have been growing in industrialized societies, including the United States and Japan. However, little comparative research has been carried out to determine which household characteristics may be significantly associated with these heightened concerns, and whether or not the same factors are useful for understanding variation in these worries in more than one society. This paper examines food safety attitudes in Seattle, Washington, and Kobe, Japan, and discovers that while the absolute level of expressed concern is higher in Kobe, the predictive power of household characteristics in explaining attitudinal differences within countries is similar. Implications for rural areas and future research on family structures in capitalist societies are discussed. 相似文献
34.
35.
The present studies examined children's and adults' preferences for gender- or age-based categorization using similarity and inductive inference tasks. Four-year-olds, 6-year-olds, and adults looked at pictures of people and decided which of two was more like a target (similarity condition) or which shared a novel age- or gender-related property with the target (inference condition). Age or gender-based matches were possible. The results are consistent with previous findings that gender-based classification decreases with age. However, they also demonstrate that children use gender more for judging similarity than for making inferences about novel properties. Distinct patterns emerge from the two tasks: 6-year-olds and adults in both conditions categorize more by age than gender; 4-year-olds categorize by gender more than age in the similarity task, but by age more in the induction task. Only adults differentiated by property in the inference condition. These findings suggest that the salience of gender categories cannot entirely be attributed to their inductive potential. Gender has a salience beyond what would be predicted by its power for directing novel generalizations. 相似文献
36.
We propose some estimators of noncentrality parameters which improve upon usual unbiased estimators under quadratic loss. The distributions we consider are the noncentral chi-square and the noncentral F. However, we give more general results for the family of elliptically contoured distributions and propose a robust dominating estimator. 相似文献
37.
Deviance in intimate relationships may lie as much within the micro system of such relationships as it does within the personalities of the actors involved. Using a Parsonsian framework, it is argued that the strain of systemically disequilibrated relationships can produce deviant personality adaptations which, in turn, intensify conflict and deviance in those relationships. It is also proposed that a reciprocal quality exists to such maladaptations, with each member of the dyad contributing to the amplification of a stable system of deviant behavior patterns within the relationship. Because the patterns of maladaptive dyads spill over into parent-child relationships, they have implications for understanding intergenerational transmission of deviance between intimates. 相似文献
38.
Barnacle geese ( Branta leucopsis ) make annual migrations between breeding colonies in northern Europe and Eurasia to wintering grounds in Holland. During the migration, they sojourn for several weeks in five areas on the northern coast of Germany. Observers traverse these areas during the course of studying the flocks. Previous belief was that there was little exchange of birds among the five areas; however, some banded birds were observed in more than one area indicating that some movement takes place. In this presentation, we estimate the movement rates among the areas using open- and closed-population models. 相似文献
39.
Ramesh Raghavan Arleen A. Leibowitz Ronald M. Andersen Bonnie T. Zima Mark A. Schuster John Landsverk 《Children and youth services review》2006,28(12):1482-1496
Children in the child welfare system are dependent upon Medicaid to finance services for their considerable mental health needs. This study examines the effects of Medicaid policies on mental health service use among a national probability sample of children in the child welfare system. Data for this study came from the National Survey of Child and Adolescent Well-Being, the Caring for Children in Child Welfare study, and the Area Resource File. Weighted multivariate logistic regression analyses were conducted to estimate effects of policy variables on children's use of mental health services, controlling for child-level covariates and county-level health resources. Children in counties with behavioral carve-outs under Medicaid managed care had lower odds of inpatient mental health service use. Medicaid managed care enrollment and variations in type of provider reimbursement did not affect use of mental health services. Older age, greater need for mental health services, and higher levels of caregiver education were associated with increased odds of service use. Restrictions on use of inpatient mental healthcare caused by behavioral carve-outs may disproportionately affect children in the child welfare system who have high rates of such use. Careful adoption of carve-outs is necessary to assure appropriate care for these children. 相似文献
40.
We employ vector autoregressive techniques to determine the current state of the labor queue. Unemployment rate differentials
have narrowed in recent years, potentially due to a change in the queue ordering, though a tight labor market and a stable
queue would yield similar results. We find no evidence that the queue ordering has changed, which brings into question the
resiliency of gains made by minority groups. We employ the same techniques to reveal the state of the queue across geographic
regions and find that substantial differences exist across regions, implying variation in the relative labor force status
of demographic groups. 相似文献