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81.
82.
In Europe, authorities frequently ask forensic laboratories to analyze seized cannabis plants to prove that cultivation was illegal (drug type and not fiber type). This is generally done with mature and flowering plants. However, authorities are often confronted with very young specimens. The aim of our study was to evaluate when the chemotype of cannabis plantlets can be surely determined through analysis of eight major cannabinoids content during growth. Drug-type seedlings and cuttings were cultivated, sampled each week, and analyzed by high-performance liquid chromatography with diode array detection. The chemotype of clones was recognizable at any developmental stage because of high total Δ(9)-tetrahydrocannabinol (THC) concentrations even at the start of the cultivation. Conversely, right after germination seedlings contained a low total THC content, but it increased quickly with plant age up, allowing chemotype determination after 3 weeks. In conclusion, it is not necessary to wait for plants' flowering to identify drug-type cannabis generally cultivated in Europe. 相似文献
83.
Purpose
To assess differences in victimization risk between African American and white, non-Latino inmates, and to estimate race group differences in the correlates of victimization.Methods
Random samples totaling 2,403 African Americans and 3,150 whites were drawn from all state prisons in Ohio and Kentucky and all private prisons in Ohio (n = 46). Race-specific bi-level models of physical assaults and property thefts were estimated. Differences between race-specific models in the magnitude of regression coefficients for the same predictors and outcomes were compared.Results
The odds of victimization by physical assault and by theft were significantly higher among whites compared to African Americans. Race group differences in the magnitude of several inmate level effects (e.g., age, sex, education, family status, officer “legitimacy”, custody score, visitation) were also significant, yet facility effects were similar for both groups.Conclusions
Assessing differences in the victimization experiences of African American and white inmates is important for developing effective crime prevention strategies in prison. We examined the most comprehensive models of inmate victimization (including inmate socio-demographics, activities during confinement, perceptions of officers, facility characteristics, and officer perceptions of rule enforcement) for one of the largest samples of prisons to date. 相似文献84.
Vacuum metal deposition (VMD) has been previously demonstrated as an effective development technique for latent fingermarks and in some cases has been shown to enhance prints developed with cyanoacrylate (CA) (superglue) fuming. This work utilizes scanning electron microscopy (SEM) to investigate the interactions of the two development techniques when applied to latent fingermarks on low-density polyethylene. CA is shown to act principally on the eccrine deposits around sweat pores, where polymerization results in long polymer fibrils a few 100 nm in width. Subsequent VMD processing results in additional areas of development, for example, between pores. However, the primary mode of deposition of zinc is by interaction with the polymerized CA, the fibrils of which become decorated with zinc nanoparticles. Areas with limited CA deposition and no significant polymerization are also enhanced with the VMD process, resulting in increased print development. 相似文献
85.
Objectives
To present and test an opportunity perspective on prison inmate victimization.Methods
Stratified random samples of inmates (n 1 = 5,640) were selected from Ohio and Kentucky prisons (n 2 = 46). Bi-level models of the prevalence of assaults and thefts were estimated. Predictors included indicators of inmate routines/guardianship, target antagonism, and target vulnerability at the individual level, and several indicators of guardianship at the facility level.Results
Assaults were more common among inmates with certain routines and characteristics that might have increased their odds of being victimized (e.g., less time spent in recreation; committed violence themselves during incarceration), and higher levels of assaults characterized environments with lower levels of guardianship (e.g., architectural designs with more “blind spots”, larger populations, and less rigorous rule enforcement as perceived by correctional officers). Similar findings emerged for thefts in addition to stronger individual level effects in prisons with weaker guardianship (e.g., ethnic group differences in the risk of theft were greater in facilities with larger populations and less rigorous rule enforcement).Conclusions
The study produced evidence favoring a bi-level opportunity perspective of inmate victimization, with some unique differences in the relevance of particular concepts between prison and non-prison contexts. 相似文献86.
ABSTRACTAs government and public administration lag behind the rapid development of AI in their efforts to provide adequate governance, they need respective concepts to keep pace with this dynamic progress. The literature provides few answers to the question of how government and public administration should respond to the great challenges associated with AI and use regulation to prevent harm. This study analyzes AI challenges and former AI regulation approaches. Based on this analysis and regulation theory, an integrated AI governance framework is developed that compiles key aspects of AI governance and provides a guide for the regulatory process of AI and its application. The article concludes with theoretical implications and recommendations for public officers. 相似文献
87.
Breaking the Glass Ceiling: Local Gender‐Based Earnings Inequality and Women's Belief in the American Dream 下载免费PDF全文
Benjamin J. Newman 《American journal of political science》2016,60(4):1006-1025
This article ties together research on gender, income inequality, and political ideology, by exploring the effect of gender‐based earnings inequality on women's belief in a fundamental tenet of the “American Dream”—meritocracy. Focusing on gender‐based earnings inequality in women's local residential context, and drawing upon relative deprivation theory, this article argues that variation across local areas in the relative economic status of women should influence the ideological outlook of resident women. In contrast to relative deprivation theory, but consistent with rising expectations theory, I argue that ideological disillusionment should peak in contexts in which women's earnings fall closely behind men, and that ideological optimism should rebound in contexts in which women's earnings have achieved parity with that of men. Utilizing pooled survey data, I find strong evidence that individual women's belief in the American Dream varies according to whether local women's relative earnings indicate confrontation with or breaking of the “glass ceiling.” 相似文献
88.
The informal self-help settlements in Texas known as colonias have received considerable attention as a public policy problem at both the state and federal levels. These settlements proliferated throughout the border region since the late 1970s and research has highlighted the extreme poverty, austere levels of infrastructure, exploitative land sale practices, and poor housing conditions that characterized these settlements. However, both scholars and policymakers have overlooked the continued spread of self-help settlements known as “model subdivisions,” which barring the presence of basic water, wastewater, and electricity services, are nearly identical to colonias. We present the results of household surveys conducted with residents in 24 model subdivisions in Hidalgo County, Texas, in June 2014. The results suggest that, unbeknown to legislators, many of the problems that characterized colonias are now being reproduced in hundreds of model subdivisions that have formed since the 1990s, and which now require concerted attention and intervention by policy makers. 相似文献
89.
AbstractWith the recent surge of college protests against various forms of economic, political, social, and racial injustice, there have been persistent and pernicious reactions from other students, administrators and public figures that function to undermine the emancipatory impulses animating these demonstrations. The reactions are often justified under the banners of tolerance, chastising students to listen instead of protest. This article, focusing on Marcuse’s concepts of repressive toleration and counterrevolution, evaluates the reactionary responses to these events, as well as the critical potential of this fledgling student sensibility, a burgeoning refusal represented by protest events at American universities. We maintain that many of the calls for tolerance are actually demands for silence and belong to a wider counterrevolutionary phase of late capitalism observed by Marcuse. Bedrock liberties are dialectically inverted whereby speech and toleration are repressively deployed against demands for justice. This article concludes by arguing that it is crucial to the success of this resurgent sensibility for justice—and progress toward a radical socialist movement that coincides with the emancipatory vision of Herbert Marcuse—that the counterrevolutionary character of the responses are demystified. 相似文献
90.
Prosecutorial regulation in the Global South: Environmental civil litigation by prosecutors in China compared to Brazil 下载免费PDF全文
Brazil's successful prosecutorial civil action against polluters could be a regulatory example for the Global South. This paper analyses whether such regulation could also develop without the major political, institutional, and legal reforms that spurred it in Brazil. To do so, it analyzes China, where similar reforms have so far not occurred, but where prosecutors have recently started to initiate civil litigation against polluters. It finds that prosecutorial civil litigation in China has only a limited regulatory effect or potential. Prosecutors in China are influenced by conflicting incentive structures that reward one‐off lower level test cases with an innovation bonus, while structurally stimulating a focus on general crime fighting. Ironically, as a result of such incentives, the recent legal reform, toward providing standing for prosecutors in public interest litigation, will, in contrast to Brazil, decrease rather than increase the regulatory effect of these cases. These findings have implications for understanding how the interaction between regulatory independence, legal reform, and regime type shapes possibilities for regulatory innovation in the Global South. 相似文献