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91.
    
In recent years, the scientific community has taken an interest in cyberbullying research due to the emotional and educational impact on all those involved. However, the scant evidence on samples from primary education is derived from statistical methodologies focusing on the individual, which generate specific profiles rather than acting roles. The present study focuses on the profiles of cyberbullying and its variability with the levels of self-concept and academic goals, using a sample of 548 Spanish primary education students aged 10–13 (M = 10.95, SD = 0.7). After analysing the data using Latent Class Analysis and MANOVA, the profiles developed were ‘not-involved’ (38.82%), ‘moderate victimization’ (37.17%), ‘high bully-victimization’ (19.29%) and ‘low victimization’ (4.7%). In addition, the group of students with the not-involved profile scored higher on the self-concept of their relationship with their parents, in language, in mathematics and their general self-concept than the group with moderate victimization. The same pattern was also observed for learning goals. The findings have significant implications for the creation of person-centred cyberbullying prevention programmes that permit a more targeted approach to cyberbullying behaviours in order to halt its progress.  相似文献   
92.
    
In this paper, we show that the relationship between trade liberalization and firm productivity is sensitive to the method used to estimate the production function. We estimate the productivity of Colombian manufacturing plants using the methods of Levinsohn and Petrin, Ackerberg et al., and Gandhi et al. and at times come to surprisingly different conclusions about firm productivity growth after the liberalization. Results from a growth decomposition exercise and from a quantile regression model reinforce the dissimilarity of results across methods. (JEL F13, 14, D24, C14)  相似文献   
93.
    
From a Foucauldian approach, neoliberal rationality in science can be understood as a form of governance of the self that produces mechanisms through which the subject is constructed and subordinated at the same time. In this study we examine subjectivation processes and gender in centres of research created under neoliberal scientific rationality. We analyse 19 semi‐structured interviews of men and women researchers conducted in three highly competitive centres of excellence — a context rarely addressed in the literature of academic subjectivities. Following a critical discourse analysis, we show how subjectivation processes of neoliberal rationality result in two main discursive mechanisms of subjection that prevent or hinder alternative subjectivities and collective resistance, especially for women, presenting a double turn that we call: a ‘turn on oneself’ and a ‘gendered turn on oneself’. We conclude that these centres are spaces which provide the conditions of possibility to develop a scientific entrepreneurial self, excluding ‘other’ scientific subjectivities and preventing possible resistances that could emerge from them.  相似文献   
94.
The Common Agricultural Policy (CAP) is one of the most important European policies. Since its inception, the CAP has been reformed in response to high budgetary costs, international trade pressures and socio-economic changes. Despite the reforms, this policy did not always serve the best interests of farmers and provoked social criticisms. In anticipation of the post 2013 design, it is widely agreed that the forthcoming CAP should be more understandable to taxpayers. In this study, the social preferences towards the budgetary allocation of this policy, its equity, and its co-financing are investigated by means of the Choice experiment methodology to shed light on how to shape the future CAP to gain social legitimacy. Results reveal that the CAP post 2013 proposal is more in line with public preferences, although alternative measures are needed to tailor it effectively to regional needs.  相似文献   
95.
This study considers the moderating role of family ownership, taking into account information differences between family and minority investors, and corroborates the existence of a two-way relation between CSR disclosure and information asymmetry. Our analysis of international corporate financial data for the period 2003–2009 shows there is an adverse selection effect by which family owners take advantage of insider information, thus attenuating any reduction of information asymmetry achieved by CSR disclosure.  相似文献   
96.
This paper analyses the dynamics of poverty in Italy and compares it with that in France, Spain and the UK. For this purpose, we use transition matrices of entry and exit poverty rates and quantify true state dependence through econometric techniques. The analysis exploits the longitudinal component of EU-SILC for the period 2009–2012. Estimation of dynamic random effects probit models shows that, in all countries, after controlling for individual heterogeneity and initial conditions, there is evidence of true state dependence. In comparative terms, when not accounting for regional disparities within countries, the degree of poverty persistence is highest in Italy and lowest in the UK. If regional effects are considered, the degree of poverty persistence in Italy is of the same order of magnitude as in France and Spain, but higher than in the UK. Our findings suggest that unlike other countries, in Italy regional disparities play an important role in explaining poverty state dependence.  相似文献   
97.
Increasing levels of obesity could compromise future gains in life expectancy in low-and high-income countries. Although excess mortality associated with obesity and, more generally, higher levels of body mass index (BMI) have been investigated in the United States, there is little research about the impact of obesity on mortality in Latin American countries, where very the rapid rate of growth of prevalence of obesity and overweight occur jointly with poor socioeconomic conditions. The aim of this article is to assess the magnitude of excess mortality due to obesity and overweight in Mexico and the United States. For this purpose, we take advantage of two comparable data sets: the Health and Retirement Study 2000 and 2004 for the United States, and the Mexican Health and Aging Study 2001 and 2003 for Mexico. We find higher excess mortality risks among obese and overweight individuals aged 60 and older in Mexico than in the United States. Yet, when analyzing excess mortality among different socioeconomic strata, we observe greater gaps by education in the United States than in Mexico. We also find that although the probability of experiencing obesity-related chronic diseases among individuals with high BMI is larger for the U. S. elderly, the relative risk of dying conditional on experiencing these diseases is higher in Mexico.  相似文献   
98.
BACKGROUND: In adolescents aged 12-14, we measured attitudes to tobacco advertising. Our purpose is to understand the relation of these attitudes to tobacco use and identify the groups most influenced by the advertising. METHODS: Survey of adolescents on Gran Canaria Island, Spain, about aspects of family, school, peers, tobacco consumption, and tobacco advertising. The subjects of the double-stratified cluster sample were 1910 students at the same grade level in 33 schools; 86.6% were 13 or 14 years old, and 51.2% were boys. We generated measures for attitudes to tobacco advertising from replies to seven questions with ordinal scales by an analysis of categorical principal components. To relate attitude to tobacco advertising and the profiles of these adolescents, we used multiple regression and logistic regression models. RESULTS: Attitudes to tobacco advertising are related to some home and school factors, but most significantly to tobacco and alcohol consumption, to amount of time at home without adults, and to peer influence. CONCLUSIONS: It is possible to draw up profiles of the students most vulnerable to tobacco advertising, and to cluster them in two groups, the "vitalists" and the "credulous." The effect of cigarette ads is different between these groups. This study can help to orientate smoking prevention.  相似文献   
99.
The Environmental Action Scale (EAS) analyses engagement in civic actions which seek to have an environmental impact. The EAS has shown adequate psychometric properties when used with English-speaking samples, but there are no studies assessing how it works in other linguistic and cultural groups. The aim of the study is to present the Spanish version of the EAS along with evidence that supports the utility of the scale to be used in the Spanish population. The Spanish version obtained after the adaptation process was first administered to 277 participants. The results pointed to items that did not function adequately, so a revised version was created and administered to 286 participants. Validity evidence based on internal structure showed that the EAS consistently evaluates two dimensions of the construct: Participation Activities and Leadership Activities. Evidence based on relationships with other variables indicated that the construct is also related to other variables, such as environmental identity and moral convictions.  相似文献   
100.
    
The effects of data uncertainty on real-time decision-making can be reduced by predicting data revisions to U.S. GDP growth. We show that survey forecasts efficiently predict the revision implicit in the second estimate of GDP growth, but that forecasting models incorporating monthly economic indicators and daily equity returns provide superior forecasts of the data revision implied by the release of the third estimate. We use forecasting models to measure the impact of surprises in GDP announcements on equity markets, and to analyze the effects of anticipated future revisions on announcement-day returns. We show that the publication of better than expected third-release GDP figures provides a boost to equity markets, and if future upward revisions are expected, the effects are enhanced during recessions.  相似文献   
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