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排序方式: 共有289条查询结果,搜索用时 258 毫秒
1.
Palacios Diego Berger Christian Luengo Kanacri Bernadette Paula Veenstra René Dijkstra Jan Kornelis 《Journal of youth and adolescence》2019,48(10):2005-2022
Journal of Youth and Adolescence - How the interplay between peer relationships and behaviors unfolds and how this differs between classrooms is an understudied topic. This study examined whether... 相似文献
2.
Helena Teixeira Paula Proena Alain Verstraete Francisco Corte-Real Duarte Nuno Vieira 《Forensic Science International Supplement Series》2005,150(2-3):205
An analytical method using solid-phase extraction (SPE) and high-performance liquid chromatography–mass spectrometry (LC–MS) has been developed and validated for the confirmation of Δ9-tetrahydrocannabinol (THC) in oral fluid samples. Oral fluid was extracted using Bond Elut LRC-Certify solid-phase extraction columns (10 cm3, 300 mg) and elution performed with n-hexane/ethyl acetate. Quantitation made use of the selected ion-recording mode (SIR) using the most abundant characteristic ion [THC + H+], m/z 315.31 and the fragment ion, m/z 193.13 for confirmation, and m/z 318.00 for the protonated internal standard, [d3-THC + H+]. The method proved to be precise for THC, in terms of both intra-day and inter-day analyses, with coefficients of variation less than 10%, and the calculated extraction efficiencies for THC ranged from 76 to 83%. Calibration standards spiked with THC between 2 and 100 ng/mL showed a linear relationship (r2 = 0.999). The method presented was applied to the oral fluid samples taken from the volunteers during the largest music event in Portugal, named Rock in Rio-Lisboa. Oral fluid was collected from 40 persons by expectoration and with Salivette®. In 55% of the samples obtained by expectorating, THC was detected with concentration ranges from 1033 to 6552 ng/mL and in 45% of cases THC was detected at concentrations between 51 and 937 ng/mL. However, using Salivette® collection, 26 of the 40 cases had an undetectable THC. 相似文献
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The new Finnish law on the status and rights of a patient 总被引:1,自引:0,他引:1
Kokkonen P 《European journal of health law》1994,1(2):127-135
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In the 1970s Washington State lost a series of legal cases related to Native Americans. These cases exemplify the need for knowledge of federal Indian law-but such knowledge, out of context, is insufficient. Key aspects of federal Indian law are hard to accept because of conflicting stories that Americans already believe. The authors discuss the importance of stories and review commonly believed stories that block acceptance of federal Indian law. They then discuss basic principles of Indian law and distill four questions to help determine tribal jurisdiction. The authors review the Marshal trilogy—three Supreme Court cases that set the foundations of modern Native American law—and show how the legal principles play out in an analysis of three contemporary court cases. 相似文献
6.
Margaret O’Brien Caughy Luisa Franzini Michael Windle Patricia Dittus Paula Cuccaro Marc N. Elliott Mark A. Schuster 《Journal of youth and adolescence》2012,41(12):1613-1627
Despite evidence that neighborhoods confer both risk and resilience for youth development, the existing neighborhood research has a number of methodological limitations including lack of diversity in neighborhoods sampled and neighborhood characteristics assessed. The purpose of this study was to address these methodological limitations of existing research and to examine the relationship of neighborhood structural and social characteristics to family-level social processes and teacher-reported social competence during early adolescence. The study sample of 3,624 fifth graders (51?% girls) was ethnically diverse, including roughly even proportions of non-Hispanic White, non-Hispanic Black, and Hispanic youth. Neighborhood measures included economic disadvantage derived from the U.S. Census, physical and social disorder obtained by direct observation, and social capital from parental reports. Family-level social processes included parent reported family cohesion and youth reported maternal and paternal nurturance. We found that neighborhood factors significantly associated with youth social aggression and social competence but not social withdrawal, after controlling for individual demographic characteristics and parenting factors. There was limited evidence of moderation of family influences by neighborhood characteristics as well as the moderation of neighborhood effects by children’s gender. Neighborhood physical disorder was associated with increased social aggression among boys but with increased social withdrawal among girls. Implications of the study’s findings for research on neighborhoods and adolescent development and the development of preventive interventions are discussed. 相似文献
7.
Paula Koskinen Sandberg 《Nora, Nordic Journal of Women's Studies》2018,26(1):36-52
Mainstream economics conceptualizes wages as determined by market forces and reflecting productivity and investments in human capital made by individuals. These views, which have become taken-for-granted explanations of what wages are, hide the underlying dynamics of the gender pay gap and place responsibility on individuals instead of gendered social structures. This article proposes viewing gender pay inequity through a sociological lens, which implies acknowledging the complex societal dynamics and roles of institutions and actors in shaping wages. The Nordic welfare states are often considered women-friendly, providing female citizens with social policies and services that have enabled their extensive participation in paid employment. Simultaneously, the Finnish welfare state has relied heavily on inexpensive labour provided by women, thus actively contributing to the formation of a secondary female-dominated labour market. The secondary status of reproductive work conducted within the public sector has been further strengthened and institutionalized by the Finnish corporatist system via collective agreements. In policy-making, the central actors defend their vested interests through non-decision-making, limiting the scope of decision-making to non-threatening issues. This article discusses the dynamics of the Finnish corporatist regime, welfare-state employment, and the impact of both on gender pay equity in Finnish society. 相似文献
8.
Anat Gofen Paula Blomqvist Catherine E. Needham Kate Warren Ulrika Winblad 《Public administration》2019,97(1):195-209
Often portrayed as behaviour that is inconsistent with policy goals, public noncompliance poses a significant challenge for government. To explore what compliance efforts entail on the ground, this study focuses on childhood immunization as a paradigmatic case where a failure to ensure compliance poses a public health risk. The analysis draws on 48 semi‐structured interviews with frontline nurses and regional/national public health officials in England (N = 15), Sweden (N = 17) and Israel (N = 16), all of which have experienced periodic noncompliance spikes, but differ in direct delivery of vaccination provision. Compliance efforts emerged as a joint decision‐making process in which improvisatory practices of personalized appeals are deployed to accommodate parents’ concerns, termed here ‘street‐level negotiation’. Whereas compliance is suggestive of compelling citizens’ adherence to standardized rules, compliance negotiation draws attention to the limited resources street‐level workers have when encountering noncompliance and to policy‐clients’ influence on delivery arrangements when holding discretionary power over whether or not to comply. 相似文献
9.
Paula Gioia 《Third world quarterly》2018,39(7):1403-1410
AbstractPeasants and rural communities are on the front lines of most climate catastrophes taking place nowadays worldwide; at the same time, we have been the ones taking care of our common planet over generations. This article begins with a brief overview of the current situation of land use in the world today and links it to climate issues. It then describes some of the solutions to climate threats being negotiated between national governments and the private sector. It then highlights solutions that communities are already implementing and concludes with the reasons why systemic change is needed in order to achieve agrarian and climate justice. 相似文献
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