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991.
Headspace gas chromatography was used to determine the concentration of ethanol and methanol in blood samples from 519 individuals suspected of drinking and driving in Sweden where the legal alcohol limit is 0.50 mg/g in whole blood (11 mmol/l). The concentration of ethanol in blood ranged from 0.01 to 3.52 mg/g with a mean of 1.83 +/- 0.82 mg/g (+/- S.D.). The frequency distribution was symmetrical about the mean but deviated from normality. A plot of the same data on normal probability paper indicated that it might be composed of two subpopulations (bimodal). The concentration of methanol in the same blood specimens ranged from 1 to 23 mg/l with a mean of 7.3 +/- 3.6 mg/l (+/- S.D.) and this distribution was markedly skew (+). The concentration of ethanol (x) and methanol (y) were positively correlated (r = 0.47, P less than 0.001) and implies that 22% (r2) of the variance in blood-methanol can be attributed to its linear regression on blood-ethanol. The regression equation was y = 3.6 + 2.1 x and the standard error estimate was 0.32 mg/l. This large scatter precludes making reliable estimates of blood-methanol concentration from measurements of blood-ethanol concentration and the regression equation. But higher blood-methanol concentrations are definitely associated with higher blood-ethanol in this sample of Swedish drinking drivers. Frequent exposure to methanol and its toxic products of metabolism, formaldehyde and formic acid, might constitute an additional health risk associated with heavy drinking in predisposed individuals. The determination of methanol in blood of drinking drivers in addition to ethanol could indicate long-standing ethanol intoxication and therefore potential problem drinkers or alcoholics. 相似文献
992.
Nicole A. Anderson Amy M. Bohnert Amy Governale 《Journal of youth and adolescence》2018,47(8):1697-1711
Research examining factors that predict youth’s involvement in organized activities is very limited, despite associations with positive outcomes. Using data from 1043 youth (49% female; 46.4% Hispanic, 35.4% African American, 14.0% Caucasian, and 4.2% other) from the Project on Human Development in Chicago Neighborhoods, this study examined how characteristics of parents (supervision, warmth) and neighborhoods (perceived neighborhood safety and collective efficacy) predict patterns of adolescents’ involvement in organized activities concurrently (i.e., intensity) and longitudinally (i.e., type and breadth). Parental supervision predicted adolescents’ participation in organized activities across multiple waves. Neighborhood violence was positively associated with concurrent participation in organized activities after controlling for socioeconomic status (SES), whereas higher neighborhood collective efficacy predicted greater breadth in organized activity participation across time. These findings have important implications regarding how to attract and sustain organized activity participation for low-income, urban youth. 相似文献
993.
994.
Michael Lovelock 《Journal of Gender Studies》2017,26(6):675-687
A conception of transgender identity as an ‘authentic’ gendered core ‘trapped’ within a mismatched corporeality, and made tangible through corporeal transformations, has attained unprecedented legibility in contemporary Anglo-American media. Whilst pop-cultural articulations of this discourse have received some scholarly attention, the question of why this ‘wrong body’ paradigm has solidified as the normative explanation for gender transition within the popular media remains underexplored. This paper argues that this discourse has attained cultural pre-eminence through its convergence with a broader media and commercial zeitgeist, in which corporeal alteration and maintenance are perceived as means of accessing one’s ‘authentic’ self. I analyse the media representations of two transgender celebrities: Caitlyn Jenner and Nadia Almada, alongside the reality TV show TRANSform Me, exploring how these women’s gender transitions have been discursively aligned with a cultural imperative for all women, cisgender or trans, to display their authentic femininity through bodily work. This demonstrates how established tropes of authenticity-via-bodily transformation, have enabled transgender to become culturally legible through the wrong body trope. Problematically, I argue, this process has worked to demarcate ideals of ‘acceptable’ transgender subjectivity: self-sufficient, normatively feminine, and eager to embrace the possibilities for happiness and social integration provided by the commercial domain. 相似文献
995.
996.
This study of the state frontline workforce breaks new ground by conducting an institutional analysis of rule abidance in the People's Republic of China (PRC). We draw upon a survey (n = 1,721) of Chengguan officers, the main players in regulatory enforcement of civil law in urban China, to explore the influence of autocratic one‐party rule on the meaning of and variation in rule abidance in China. The majority of Chengguan officers are rule followers, and demographic differences show little deviation from this norm. However, institutional factors associated with one‐party rule, particularly upward accountability, the privilege of administrative rank, and unequal access to power and resources, are significant in shaping differences in rule following among Chengguan officers. We conclude with a discussion of the similarities in institutional pressures on urban regulatory policing in China and the United States. 相似文献
997.
Michelle A. Munroe 《Third world quarterly》2017,38(3):580-603
Structural adjustment policies (SAPs) facilitate the hollowing out of the traditional roles performed by states. As a consequence, private entities (some perverse) offer services the state is incapable of or unwilling to provide. Beginning in the 1980s, SAPs plunged neighbourhoods in Latin America and the Caribbean into socioeconomic, and political disorder. This paper assesses the relationship between neoliberal reforms to the Jamaican state and the metamorphosis of violence since the mid-1980s. Neoliberalism transformed violence in Jamaica by increasing inter-gang conflicts, shootings and gang-related murders in Kingston’s garrisons. It also transformed political enforcers into community dons who use violence as a tool for business transactions in the international drug trade, and as a method of gaining local respect and authority. 相似文献
998.
Research shows protective factors that mitigate risks for juvenile delinquency can also support the community reentry of incarcerated youths and deter future offending. Family engagement, educational attainment, and secure employment are widely accepted as important protective factors to prevent problematic behavior. Studies suggest these same protective factors are crucial for incarcerated youths and should be an integral part of reentry planning to improve post-release outcomes. Nevertheless, limited research exists on the association between these factors and the value of family involvement in reentry planning for incarcerated youths. This study addresses this gap by examining how increased family contact affects the likelihood of instituting education and employment reentry plans among youths in custody. Data were obtained from the Survey of Youth in Residential Placement (SYRP) that provides information on juvenile offenders in confinement. The SYRP is the first nationally representative cross-sectional survey to gather information directly from youths 10–20 years old in custody (N=7,073). Analyses were conducted using a sequence of regression models to test the relationship between the frequency of family contact and whether a youth had a plan for education or employment upon release. Results reflect that youths with increased family contact were one and a half times more likely to have both educational and employment reentry plans in place relative to youths with no family contact. Findings inform practice and policy to advocate for family involvement with youth in confinement, and further suggest that family plays a decisive role in preparing incarcerated youths for success upon release. 相似文献
999.
Theories of candidate positioning suggest that candidates will respond dynamically to their electoral environment. Because of the difficulty of obtaining “bridge votes”, most existing approaches for estimating the ideal points of members of Congress generate static ideal points or ideal points that move linearly over time. We propose an approach for dynamic ideal point estimation using Project Vote Smart’s National Political Awareness Test to construct bridge votes. We use our dynamic estimates to measure aggregate change, to measure individual-level change, and to study the institutional and structural factors that explain the changing positions of House candidates and members of Congress. We demonstrate that while the Republican Party has been selecting increasingly extreme candidates, Democratic incumbents have become more extreme while in office. We also find that the congruence between elected members of Congress and their constituents is mostly explained by the selection as opposed to the responsiveness of the candidate. Nonetheless, we find evidence of dynamic responsiveness of incumbents in specific circumstances. We find that competitiveness, midterm elections, and sharing the president’s party affiliation are associated with greater responsiveness. Conversely, retirement is not associated with a change in responsiveness. We find no evidence of responsiveness of challengers. Finally, we find that close elections draw challengers who are more in line with the district’s ideology. 相似文献
1000.
Michael P. A. Murphy 《Cambridge Review of International Affairs》2018,31(3-4):368-369