首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   75篇
  免费   6篇
各国政治   9篇
工人农民   4篇
世界政治   5篇
外交国际关系   5篇
法律   37篇
政治理论   21篇
  2023年   1篇
  2022年   2篇
  2021年   1篇
  2020年   3篇
  2019年   3篇
  2018年   6篇
  2017年   7篇
  2016年   6篇
  2015年   3篇
  2014年   2篇
  2013年   14篇
  2012年   7篇
  2011年   4篇
  2010年   1篇
  2009年   4篇
  2008年   1篇
  2007年   2篇
  2005年   3篇
  2004年   2篇
  2003年   4篇
  2002年   1篇
  2001年   2篇
  1988年   1篇
  1978年   1篇
排序方式: 共有81条查询结果,搜索用时 15 毫秒
41.
One of the goals of the Forensic Anthropology Society of Europe (FASE) is to map the existing education and practice opportunities in the field of forensic anthropology in order to support the development of the discipline and to optimize the training courses provided by the Society. To address this goal, an online questionnaire was sent to European and South African practitioners of forensic anthropology and related disciplines in 2016. The results of the questionnaire showed that the status and roles of forensic anthropologists vary depending on the national legal systems, education, and employment status of the practitioners. Despite the fact that the expertise of forensic anthropologists has been increasingly requested in a variety of investigations and the spectrum of tasks has become broader, including identification of living persons, specialized education in forensic anthropology is still restricted to a few graduate and postgraduate programs in European countries and to annual FASE courses.  相似文献   
42.
The allele and genotype distributions for 15 STR loci included in the AmpFlSTR SGM Plus and AmpFlSTR Profiler kits (Applied Biosystems, Foster City, USA) were determined in a sample of 222 unrelated individuals of Belgian origin.  相似文献   
43.
The information inherent in cigarette ash in the form of trace‐metal concentrations may be of use in a forensic context as it can indicate the brand from which the ash originated. This knowledge might help place suspects at crime scenes or determine how many people may have been present. To develop and test statistical models capable of classifying ash samples according to brand, commercial cigarettes procured in the U.S. and overseas were “smoked” using a peristaltic pump, mimicking the range of human smoking habits. Ash samples were digested in a mixture of nitric and hydrochloric acid applying microwave digestion and analyzed using inductively coupled plasma‐mass spectrometry. Principal component analysis of the elemental data showed intrinsic differences between brands. Partial least squares‐discriminant analysis demonstrated that brand classification yields good sensitivity and specificity for a number of models tested. Varying smoking parameters did not impact the classification of ash samples.  相似文献   
44.
Research on the impact of the macroeconomy on individual-level preferences for redistribution has produced varying results. This paper presents a new theory on the presence of an expansive welfare state during one’s formative years as a source of heterogeneity in the effect that macroeconomic conditions have on individuals’ preferences for redistributive policy. This theory is tested using cohort analysis via the British Social Attitudes surveys (1983–2010), with generations coming of age between the end of World War I and today. Findings confirm that cohorts that were socialised before and after the introduction of the welfare state react differently to economic crises: the former become less supportive of redistribution, while the latter become more supportive. The research sheds light on the long-term shifts of support for the welfare state due to generational replacement.  相似文献   
45.
Children and adolescents exposed to multiple contextual risks are more likely to have academic difficulties and externalizing behavior problems than those who experience fewer risks. This study used data from the Northern Finland Birth Cohort 1986 (a population-based study; N?=?6961; 51?% female) to investigate (a) the impact of cumulative contextual risk at birth on adolescents’ academic performance and misbehavior in school, (b) learning difficulties and/or externalizing behavior problems in childhood as intervening mechanisms in the association of cumulative contextual risk with functioning in adolescence, and (c) potential gender differences in the predictive associations of cumulative contextual risk at birth with functioning in childhood or adolescence. The results of the structural equation modeling analysis suggested that exposure to cumulative contextual risk at birth had negative associations with functioning 16 years later, and academic difficulties and externalizing behavior problems in childhood mediated some of the predictive relations. Gender, however, did not moderate any of the associations. Therefore, the findings of this study have implications for the prevention of learning and conduct problems in youth and future research on the impact of cumulative risk exposure.  相似文献   
46.
The discussion on how to finance the Statutory Health Insurance (SHI) repeatedly appeared prominently in the political discussions of previous election campaigns for the German Bundestag. However, in 2013 this topic remained only marginal. The recent marginalisation of health policy is closely linked to the political processes and results inherent to a health ministry having the FDP at its helm from 2009 to 2013. The effects of several fundamental reforms introduced during this period closely follow the disputed market orientation of the liberal democratic thought and rendered the corresponding results. However, this was hardly perceived in public and the political discussion was distracted from health policy. The most ambitious project of the FDP and of parts of the Christian parties was the introduction of a health premium. Actually the CSU opposed its realisation. Other policies even contrasted the goals of the FDP.  相似文献   
47.
This paper analyses the diverse ways in which peasant households struggle to earn their living and cope with distress amid the processes of globalisation, the decreasing role of agriculture, and market-based models of rural development, by drawing on research conducted among peasant households in northern Honduras. Special attention is paid to the socio-political processes that shape the opportunities and constraints of local households in diversifying their livelihoods and to social networks, cultural norms, political power relations, and institutional mechanisms that mediate people's access to different livelihood options. The results of our study show that although peasant households engage in an array of livelihood practices, their sources of income are sporadic and their strategies of living are vulnerable. An overemphasis on the capacity of the poor to reshape their lives and reformulate their livelihood strategies easily underestimates the ways in which the inequitable socio-economic structures and political power relations constrain the livelihood options of the poor.  相似文献   
48.
EU Treaties contain an arsenal of purpose-defined and ambiguous competences that are enjoyed by EU institutions, yet devote little attention to the restraining impact of EU competences on Member States' autonomy and policies. While the focus has traditionally been on subsidiarity to deal with competence issues, the judgment of the Bundesverfassungsgericht in Weiss revitalises the discussion on the potential of proportionality to guide competence issues. This inquiry seeks to highlight both the existing traces of competence proportionality employed by the Court to allocate competences as well as the potential of the proportionality standard to temper the spillovers on Member States' autonomy accruing from the exercise of EU competences. While the Treaty restricts proportionality to reviewing the use (not existence) of EU competences, the Court has implicitly employed proportionality considerations to verify the existence of EU competences. In addition, drawing from established case law, competence proportionality assessments could rely on an effect-based substantive review in combination with procedural duties allowing a meaningful balancing of national autonomy against the dynamics of deeper integration.  相似文献   
49.
The aim of this study was to establish correlations of clinical and radiological dental findings, alone or in combination, with chronological age in adults. Dental findings and orthopantomograms of 984 patients (aged 20-60 years; 524 females/460 males) were analyzed. DMF-T index and distance (alveolar bone level, ABL) between cemento-enamel junction and alveolar bone margin were recorded. Additionally, clinical and radiological findings at each tooth crown and root were collected according to the actual status of destruction and restoration, and a total score for each dentition (TSD) was calculated. After univariate correlation analysis, correlation coefficients for ABL and TSD were improved by using square root (sqrt). However, the determination accuracy was still not satisfactory; 90% of the residuals were in the range of about +/-10. The present study showed that clinical and radiological dental findings could not be used, not even in combination, for accurate age estimation as a single method, but that they could support other methods.  相似文献   
50.
This paper aims to shed light on firm-specific drivers that lead firms to internationalise their innovation activities. The paper paints a comprehensive picture of driving forces by including firm capabilities, characteristics of the firm’s competitive environment and the influence of innovation obstacles in the home country. In particular the influence of potential driving forces on the probability to carry out different innovative activities abroad is assessed (R&D, design/conception of new products, manufacturing of innovative products and implementation of new processes). In a second stage these driving forces are observed with regard to their impact on the decision to locate innovation activities in various countries and regions (China, Eastern Europe, Western Europe and North America) as well as in groups of countries with similar levels of knowledge (“country clubs”). The analysis is based on the Mannheim Innovation Panel survey which represents the German CIS (Community Innovation Survey) contribution. Two survey waves have been combined, resulting in a sample of about 1,400 firms. The results show that the decision to perform innovation activities abroad is mainly driven by organisational capabilities such as absorptive capacities, international experience and existing technological competences of the respective firm. Innovation barriers at the German home base such as lack of labour and high innovation costs prompt the set-up of later-stage innovation activities abroad while the lack of demand demonstrates a barrier to the internationalisation decision for the development and manufacturing of new products. Location decisions receive the strongest influencing effects from the international experience of the firm. Firms which innovate in developing countries seem to require a more extensive level of international experience through international R&D cooperation.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号