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191.
Population: Past growth and future control   总被引:2,自引:2,他引:0  
This paper is the opening chapter and demographic context of a forthcoming book onThe World's Food. It offers a summation of the Malthusian perception of food and population, an overview of population growth in history and the role of the demographic transition. The varying experiences of developing countries in bringing down the birth rate are examined and used as a basis for projecting future population growth.  相似文献   
192.
This study examined the school performance, suicidal involvement, disordered eating behaviors, pregnancy risk and chemical use of teenagers with a history of sexual abuse or parental alcohol misuse and found that they had higher rates of these adverse outcomes than among a comparison group of teenagers without such background risk factors. Adolescents with dual-risk background reported higher levels of suicide risk, disordered eating, sexual behaviors and chemical abuse than teenagers with only one background risk factor. Among index group members, protective factors against these adverse outcomes included a high degree of religiosity and the ability to discuss problems with family or friends. Risk factors that increased the likelihood of adverse outcomes included depression, perceived substance use in school and worries about family financial security.The first author was supported in the preparation of this article by a grant from the Lois and Samuel Silberman Fund of New York.  相似文献   
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194.
This was a study of 357 adolescents, aged 13 to 17 years, who resided in a family receiving AFDC in 10 rural counties in Arkansas. The study had a twofold purpose: 1) to examine what elements of social control, social learning, and strain theories predicted 3 measures of sexual behavior; and 2) to test an integrated theoretical model with 2-stage least squares regression to see if it fit the data on the 3 measures of sex. The measures of sexual behavior were frequency of sexual intercourse in the past year, number of sexual partners in the past year, and number of sexual partners in lifetime. Bivariate analyses revealed that the consistent predictors of the 3 measures of sex were age, gender, attachment to mother, beliefs, parental supervision and punishment, family and friend support, frustration, and use of rationalizations. The theoretical model that fit all measures of sex showed that bonding influences sexual behavior through frustration, and that age, gender and rationalizations directly impact behavior.  相似文献   
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196.
“The Authoritarian Personality” is a milestone study in social science research. Based on a series of research and investigations, the study, conducted in 1945/46, had to pass controversies and delays until its publication in 1950. Theodor W. Adorno’s involvement in this research appears to be less central than has frequently been assumed. Gradually, the importance of Erich Fromm’s contribution to the theoretical foundation and methodology of the study was recognized. Nevertheless, in many publications it is still acceptable to neglect the major contribution of Erich Fromm and Adorno’s further co-authors, Else Frenkel-Brunswik, Daniel J. Levinson and R. Nevitt Sanford. During the fifties, the Frankfurt Institut für Sozialforschung (IfS) conducted only two large-scale interview-and questionnaire-based studies pertaining to authoritarian personality issues. However, in further studies innovative research perspectives were not evident, and the most obvious task, to investigate former perpetrators and supporters of National Socialism, was not realized. The most probable of these deficit motives were based on Adorno’s dismissive view of empirical social psychology and differential psychology. However, the expertise of both are indispensable for such research programs. This historical review of “The Authoritarian Personality” demonstrates why there has been so little innovative and comprehensive research on the subject in postwar Germany.  相似文献   
197.
The focus of this paper is on mobility between local labour markets. Using multilevel data, the effect of local unemployment on mobility between local labour markets is investigated. A distinction is made between several dimensions of unemployment: (1) unemployment as a status in the life course at the individual level, (2) unemployment duration, (3) the unemployment rate at the regional level. One of the main results contradicts neoclassical economics: the rate of mobility between local labour markets decreases with increasing local unemployment. In a sense, persons become “trapped” in the local context because under bad labour market conditions unemployed persons, too, tend to immobility. As a result, a devaluation of human capital might be possible.  相似文献   
198.
The term “social loafing” refers to a decrease in motivation and achievement in group work due to sinking responsibility of the individual for the groups’ outcome. Recent studies assume a paradoxical relation between motivation and outcome, which should produce better outcome with decreased motivation. The current study addresses this question. Two experiments with N=60 subjects working in groups of 3 are reported. Subjects had to deal with a computer simulated scenario of a fire fighting situation. There was a simple and a more complex version; also, individual responsibility for the groups’ outcome was either given (coactive condition) or not (collective condition). During experiment 1, subjects could only deal with their own section of the scenario; in experiment 2, they were allowed to work on the whole field. Dependent variables were effort (in terms of commands given) and achievement (in terms of space saved). It turned out that under collective responsibility effort was reduced but this did not lead to decreased achievement. Under the complex condition, with decreased effort even an increase in achievement could be demonstrated. Implications for the collective effort model presented by Karau and Williams are discussed.  相似文献   
199.
In fifty-three families, mothers, fathers and one adolescent were videotaped discussing two issues relevant to the adolescent's behavior: the aspects of their behavior they could change, and rules appropriate to life in the family. Family members later watched these videotapes and rated themselves and each other every 15 seconds on levels of perceived anxiety, involvement, strength and friend-liness. From these videotapes, each family member's behavior was also coded for the use of smiles, various face and head movements and gestures. Results revealed that adolescents looked frequently at both parents, but parents looked even more at each other and the adolescent. Adolescents smiled more than their parents, while mothers smiled and nodded their heads more than fathers. More nonverbal expresivity occurred in conversations between parents and daughters than between parents and sons, although these results were mainly due to the behavior of fathers with daughters. Ratings of involvement by parents were related to the adolescent's nonverbal behaviors, but other ratings were not. Mothers rated adolescents as more involved when they used more head up movements and nods. Fathers rated adolescents as more involved when they gazed and smiled more.  相似文献   
200.
Die vorliegende Studie ist mit der empirischen überprüfung der Generalisierungsthese in der Kriminalit?tsfurchtforschung befasst. Nach der Generalisierungsthese handelt es sich bei Kriminalit?tsfurcht nicht um eine spezifische Reaktion auf Kriminalit?tsrisiken, sondern um eine Projektion sozialer und existenzieller ?ngste, die aus gesellschaftlichen Transformationsprozessen gespeist werden. Kriminalit?t dient dabei als Metapher, um die transformationsbedingten ?ngste artikulierbar zu machen. Anhand von Befragungsdaten aus einer ?sterreichischen Stadt kann gezeigt werden, dass ein solches Verst?ndnis der Entstehung kriminalit?tsbezogener Unsicherheitsgefühle durchaus angemessen ist. Ein aus der Generalisierungsthese abgeleitetes Strukturgleichungsmodell kann die Daten besser reproduzieren als ein konkurrierendes „disorder”-Modell.  相似文献   
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