Detection and quantification of low levels of benzoylecgonine in equine urine

Cocaine (COC) is a highly addictive plant alkaloid expressing strong psychostimulatory effect. It has no medical use in equine veterinary practice. The contamination of the environment with cocaine such as its presence on the US paper currency has been reported few times. There are anecdotal reports of low benzoylecgonine (BE) concentrations (usually much less than 100 ng/mL) being found in urine of race horses. In order to protect horsemen against harsh penalties associated with the presence of trace amounts of BE in horse urine as a result of environmental contamination, in February 2005 the Illinois Racing Board issued new medication rules that established the threshold level of 150 ng/mL for BE in equine urine. The penalties associated with this rule provide for increasing fines ($250, $500, $1000) with successive positive reports against a trainer for levels of BE below 150 ng/mL. A total of 19,315 urine samples were collected over the 2-year period of time from winning horses (both harness and thoroughbred) at race tracks in Illinois for routine drug screening (ELISA). The presence of BE was confirmed by GC/MS in 28 urine samples (0.14%). The concentration range for BE in harness horses (21 detections) was < 5-91 ng/mL, and for thoroughbred (seven detections) was 7-52 ng/mL. To date, the laboratory has not reported concentrations of BE that exceed the established threshold concentration of 150 ng/mL.     

Youth gang membership and serious violent victimization: the importance of lifestyles and routine activities

Youth gangs have received substantial scholarly and public attention during the past two decades. Although most of the extant research on youth gang members has focused on their offending behaviors, recent studies have examined the victimization of youth gang members relative to their nongang peers. Gang members generally have been found to be at increased risk of victimization, although the reasons for this relationship have not fully been explored. The current study uses data from a multisite study of youth to explore whether the gang membership-victimization link is mediated by lifestyles and routine activities. In other words, is gang members' involvement in delinquent lifestyles and routine activities a viable explanation for their increased risk of serious violent victimization? Implications of these findings and suggestions for future research and policy are discussed.     

The Limits of Partisan Loyalty

Political Behavior - While partisan cues tend to dominate political choice, prior work shows that competing information can rival the effects of partisanship if it relates to salient political...     

Is International Relations a Global Discipline? Hegemony,Insularity, and Diversity in the Field

Using data from the Teaching, Research, and International Policy (TRIP) project, we address several questions posed by students of the international relations (IR) discipline, specifically, whether and to what extent: US scholars, institutions, and journals dominate the field; national communities of IR scholars are insular or inward-looking; and/or the discipline is theoretically, methodologically, and epistemologically diverse. We draw from two major data sources: a series of cross-national surveys of IR faculty in thirty-two countries and a database of journal articles published in the twelve leading IR journals from 1980 to 2014. We find obvious signs of US hegemony and insularity. Other national IR communities are relatively open to foreign ideas, if not to hiring scholars trained in other countries. Finally, despite US hegemony in the discipline and pockets of geographic insularity, we see a diverse field characterized by a wide range of theoretical, methodological, and epistemological commitments. We conclude with a discussion on the sources and consequences of diversity in the international relations discipline.     

Present at the Destruction? The Liberal Order in the Trump Era

Abstract

The election of Donald Trump in 2016 sent shock waves across political classes globally and prompted debates about whether his ‘America first’ agenda threatened the liberal international order. During his first year in office, Trump seemed determined to undermine the hallmarks of the liberal international order: democracy, liberal economics and international cooperation. So, are we witnessing the emergence of a “post-liberal” and “post-American” era? Four sources of evidence help frame – if not answer – the question: history, the crisis of liberal democracy, Trump’s world view, and the power of civil society (globally and nationally) to constrain any US President. They yield three main judgements. First, continuity often trumps change in US foreign policy. Second, the liberal international order may have been more fragile pre-Trump than was widely realised. Third, American power must be put at the service of its own democracy if the US is to become the example to the world it used to be.     

Campaign Learning and Vote Determinants

How campaigns shape voters' decisions is central to the study of political behavior. The basic conclusion is simple: campaigns matter. While we know who campaigns influence, there is no clear empirical evidence of why or how campaigns matter. This comes from two things. First, despite different theories about campaigns, the existing studies measure the campaign as a function of time. Second, these studies ignore the individual-level psychological mediators of these effects. We know that there are differences across time during a campaign, but we do not know how or why. In this article I suggest that campaigns work by altering voters' uncertainty about the candidates and combine aggregate and individual-level data using a hierarchical logit estimated via Markov chain Monte Carlo methods. I find that voters change how they weigh their attitudes during the campaign because of changes in their uncertainty about the candidates.