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1.
Extensive sibling conflict is predictive of multiple poor adjustment outcomes during adolescence and early adulthood, but the frequency and developmental impact of such conflict may be conditional on ineffective parenting. Thus, sibling conflict may add to or amplify the negative effects of ineffective parenting on adolescent boys' adjustment. Hypotheses in this study were that: (a) multiple informant measures of problematic parent–child relationships and of sibling conflict would form distinct constructs rather than a single negative family process construct, and (b) ineffective parenting, sibling conflict, and their interaction measured at ages 10 to 12 would predict boys' concurrent status and developmental trajectories for antisocial behavior and peer adjustment across a 4‐year span from ages 12 to 16. Confirmatory factor and latent growth modeling analyses were consistent with these hypotheses, demonstrating the important developmental impact of sibling conflict.  相似文献   
2.
Several colorectal cancer (CRC) screening models have been developed describing the progression of adenomas to CRC. Currently, there is increasing evidence that serrated lesions can also develop into CRC. It is not clear whether screening tests have the same test characteristics for serrated lesions as for adenomas, but lower sensitivities have been suggested. Models that ignore this type of colorectal lesions may provide overly optimistic predictions of the screen‐induced reduction in CRC incidence. To address this issue, we have developed the Adenoma and Serrated pathway to Colorectal CAncer (ASCCA) model that includes the adenoma‐carcinoma pathway and the serrated pathway to CRC as well as characteristics of colorectal lesions. The model structure and the calibration procedure are described in detail. Calibration resulted in 19 parameter sets for the adenoma‐carcinoma pathway and 13 for the serrated pathway that match the age‐ and sex‐specific adenoma and serrated lesion prevalence in the COlonoscopy versus COlonography Screening (COCOS) trial, Dutch CRC incidence and mortality rates, and a number of other intermediate outcomes concerning characteristics of colorectal lesions. As an example, we simulated outcomes for a biennial fecal immunochemical test screening program and a hypothetical one‐time colonoscopy screening program. Inclusion of the serrated pathway influenced the predicted effectiveness of screening when serrated lesions are associated with lower screening test sensitivity or when they are not removed. To our knowledge, this is the first model that explicitly includes the serrated pathway and characteristics of colorectal lesions. It is suitable for the evaluation of the (cost)effectiveness of potential screening strategies for CRC.  相似文献   
3.
从出口产品周转过程人手,揭示了行业出口产品数量、价格、利润率、利润额、周转速度等因素与人民币汇率间的内在联系,分析了各因素在化解汇率升值压力方面的不同作用,也揭示了人民币升值压力在产业链上传导与转嫁规律,探索了升值压力持续增大的国内外宏观因素,在此基础上提出了化解人民币升值负面影响的对策.  相似文献   
4.
良好的乡村金融生态是建设社会主义新农村、落实国家三农政策和实现城乡经济社会协调发展的重要保障.阐述了金融生态对新农村建设的重要意义,对我国乡村地区特别是欠发达地区金融生态存在的问题及其对新农村建设的制约作用进行了分析与探讨,并就改善乡村金融生态提出了若干建议.  相似文献   
5.
The concept of attitude often subsumes normative, preferential, and belief components; some attitude scales are composed of items exhibiting two or more of these modalities. Beliefs may, in turn, be classified as reports, stereotypes, consequences, and intentions. This article shows that attitude questions in different modes have differing origins and implications, and that it is an error to continue to use an attitude concept and attitude scales that are modally ambiguous. As well, it is an error to use factor analyses and lack of co-scalability as the only criteria for assessing modality differences within attitude scales. In support of this argument we show that adolescents respond differently to attitude questions concerning school integration that are phrased in the normative, preferential, and belief modes, although these same questions are also found to co-scale. A distinction is made between two ways of learning attitudes: through personal experience and through information from others. On the basis of this distinction, parallel results were predicted and found for preferences and intentions. These differed from results that we predicted and found for norms and stereotypes.  相似文献   
6.
Interpersonal relationships within and outside the family have been a central part of alcohol and substance use research. Many studies have focused on the role of parents and peers; fewer studies have focused on siblings. This article examines siblings’ roles in alcohol, tobacco, and other drug (ATOD) use patterns and trajectories in the context of familial and nonfamilial factors across time. First, intraclass correlations were used to examine the degree to which older siblings’ ATOD use was associated with younger siblings’ ATOD use. Second, hierarchical regression analyses were conducted to examine the degree to which individual, parent, sibling, and peer factors over time were associated with adolescents’ and young adults’ ATOD use. It should be noted that developmentally proximal predictors were utilized in these models and within-family replication was also examined. Results demonstrate strong associations between older and younger siblings’ ATOD use. Moreover, the developmentally proximal sibling variables were predictive of younger sibling ATOD use in the context of other variables across all substances. Study findings are discussed in terms of identifying promising and potentially malleable points of intervention for future investigators.  相似文献   
7.
This study examined whether the influences of multiple maternal criminal justice involvement (MCJI), community adversity, and violence exposure on children's internalizing and externalizing behaviors were moderated by race. The study included 409 children of criminal justice and child welfare involved mothers, ages 5–15 who participated in the National Survey on Child and Adolescent Well-Being (NSCAW). Results indicated that race, defined as Black vs. non-Black, moderated the associations between multiple MCJI and internalizing and externalizing behaviors. Decomposition of the regression effects indicated that non-Black children exposed to multiple MCJI, as compared to non-Black children who were not exposed to multiple MCJI, exhibited significant increases in both internalizing and externalizing behaviors, while Black children who experience multiple MCJI, on average, showed no increases. Similarly, race moderated the association between exposure to community adversity and externalizing behaviors. The decomposition of regression effects indicated that non-Black children who experienced higher levels of community adversity exhibited increases in externalizing behaviors, while Black children showed no increases. Criminal justice and child welfare practice and policy implications are discussed.  相似文献   
8.
经济增长方式是一个内容丰富的概念 ,经济增长方式转变就是由粗放型增长向集约型增长转变。而实现经济增长方式转变必须具备一系列条件 :统一思想 ,提高认识 ;进一步深化经济体制改革 ,加快建立和完善社会主义市场经济体制 ;建立现代企业制度 ;加快科技体制改革 ,形成有利于自主创新的技术进步机制 ;建立一支素质较高的职工队伍 ;增强对外开放的力度 ;转变政府经济职能 ,规范政府行为  相似文献   
9.
SOCIAL INFLUENCE, SELF-REFERENT IDENTITY LABELS, AND BEHAVIOR   总被引:1,自引:0,他引:1  
Self-referent identity labels are frequently argued to be a central component of the self and to be important in the planning of conduct. Despite the attractiveness of this argument, relatively little research has yet appeared that supports it, and studies of the etiology and effects of self-referent labels often fail to control for the confounding effects of preferences, norms. or other conceptions that are known to affect conduct. In this paper, propositions are argued concerning the causes and independent effects of self-referent labels. Some of these propositions are then tested in two studies, one concerned with alcohol use among adolescents in four Western countries, the other focused on alcohol and tobacco use among American high-school and undergraduate students. Both studies found strong ties between reports of peer modeling and respondents self-referent labels and that the latter had significant and independent effects on reported behaviors. Theoretical and practical implications of findings are discussed.  相似文献   
10.
This commentary represents a personal reaction to seven articles on ethical issues in evaluation. The author of the commentary begins with two assumptions: (1) Professional evaluators might not have the vocabulary and constructs to analyze their thoughts and actions in ethical terms, and (2) professional evaluators have often confronted troubling situations that probably contain ethical issues embedded within them. Consequently, she queries the seven articles individually and collectively in terms of the following questions: 1. What is the range of ethical problems I might encounter as an evaluator; and how do I recognize the ethical characteristics of professional dilemmas? 2. How do I describe troubling evaluation problems I have encountered that seem to have an ethical component? 3. What are some approaches I have used or might use in thinking about a proper course of action? 4. How do I know if, in a given situation, I have behaved ethically? 5. Where do we go from here?  相似文献   
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