Temporal analysis of the cocaine metabolite benzoylecgonine in wastewater to estimate community drug use*

Abstract: Indirect estimation methods of cocaine consumption may not reflect the real extent of cocaine use. Another approach is sewage epidemiology. This direct approach is based on analysis of a stable cocaine metabolite, benzoylecgonine (BE), in wastewater. Influent to the Lubbock (Texas) Water Reclamation Plant was sampled twice a week to assess weekly variations in estimates of cocaine consumption over a 5‐month period. BE was extracted from influent wastewater samples using solid phase extraction and analyzed using gas chromatography/mass spectrometry. Measured concentrations of BE were converted to cocaine equivalents; the estimated average daily consumption of cocaine during the study period was 1152 ± 147 g. Based on BE concentrations and sewage epidemiology, higher cocaine consumption was observed on weekends compared to weekdays (p < 0.0003). This method was effective in monitoring BE in wastewater and could be used to complement survey data in estimating cocaine use at a local level.     

An examination of types of delinquency through path analysis

Relationships between father's occupation, delinquent peer association, tendency to neutralize, and self-reported delinquency are explored in a path model. Self-reported delinquency are categorized into Minor, Predatory, and Aggressive delinquency. The effect of this division is analyzed among Mexican Americans and Anglo college students (N=694). The structure of the resulting path models remained similar across these subsamples, although there was some variation in the strength of the relationships. The effect of father's occupation was minimal. The strongest relationships were between neutralization and delinquency, controlling for delinquent peers and for father's occupation, which decreased as the seriousness of the delinquency increased. Additionally, neutralization was more strongly related to delinquency among Anglos than among Mexican Americans, explaining 39% of the variation in delinquency among Anglos, but only 28% among Mexican Americans. Association with delinquent peers, however, was more strongly related to delinquency among Mexican Americans.Received his Ph.D. from Oklahoma State University. Current interests are social gerontology, adolescent behavior, and medical sociology.Received his Ph.D. from the University of Kansas. Current interests are adolescent behavior, human development, and the sociology of sport.     

Much Ado About Very Little: Reply to Herron

Mitchell S. Sanders Department of Political Science, University of Notre Dame, Notre Dame, IN 46556 e-mail: msander1{at}nd.edu While Herron (2004, Political Analysis 12:182–190) iscorrect that sensitivity to changes in underlying scale andhow they affect estimates and inferences is generally important,our assumption in Rothenberg and Sanders (2000, American Journalof Political Science 44:310–319) that W-NOMINATE scalescan be directly compared from one Congress to another to studylegislative shirking is quite defensible because scale variabilityis not a substantial problem. Not only are the assumptions inour original analysis regarding variability very reasonable,because any variability is quite small, but effects on consistencyare marginal and, to the degree that they are relevant, indicatethat our test of the shirking hypothesis is conservative. Furthermore,even generous estimates of variability in W-NOMINATE betweenone immediate Congress and another have little impact on results.In addition, Herron's analysis includes an unaddressed censoringproblem that again, while unlikely to have much substantiverelevance, indicates that Rothenberg and Sanders have workedagainst themselves in trying to find shirking. In conclusion,the issues that Herron highlights are of marginal consequencefor the original analysis and, to the extent they matter, onlybuttress the findings generated and the inferences drawn.     

Alcohol Use, Outcome Expectancies, and HIV Risk Status among American Indian Youth: A Latent Growth Curve Model with Parallel Processes

Alcohol use is cited as a risk factor for exposure to HIV infection through risky sexual behavior, especially among adolescents. From Social Cognitive Theory, positive outcome expectancies about the use of alcohol have often been presented as a critical aspect of alcohol use. Yet little is known about how they might be related to different aspects of HIV risk. Using latent growth curve modeling with data from 292 American Indian youth across seven years, both alcohol use and positive expectancies increased significantly; a lower-risk group showed significantly slower increases in both. Changes in alcohol use and outcome expectancies were significantly interrelated, providing support for reciprocal influence between the two constructs. Positive alcohol outcome expectancies may provide a preventive intervention point worthy of further consideration as influencing alcohol use and lowering HIV sexual risk among adolescents.Associate Professor at the University of Colorado at Denver and Health Sciences Center. She received her Ph.D. in Community Psychology from Michigan State University. Her major research interests are adolescent development among minority youth with an emphasis on positive and problem behaviors.Associate Professor at the University of Colorado at Denver and Health Sciences Center. She received her Ph.D. in Social Psychology from the University of Michigan. Her major research interests are in areas of American Indian mental health and services research.Assistant Professor at the University of Colorado at Denver and Health Sciences Center. She received her Ph.D. in Sociology from the University of Michigan. Her primary research interests are in demography and contextual effects of individual health behavior, with a special emphasis on adolescent development.In addition to the above people, the Project Team included Sonia Bauduy, Cathy A.E. Bell, Cecelia K. Big Crow, Dedra Buchwald, Nichole Cottier, Amy D. Dethlefsen, Ann Wilson Frederick, Ellen M. Keane, Shelly Hubing, Natalie Murphy, Angela Sam, Jennifer Settlemire, Jennifer Truel, and Frankee White Dress.     

A Liberal Republican "Cato"

In recent years the polarized debate surrounding the relative influence of the liberal and classical republican traditions on the political thought of the Founding Fathers has abated somewhat. Trenchard and Gordon's Cato's Letters , however, seen predominantly as a classical republican text, continues to be misread, resulting in a misinterpretation of the way in which it may have been read by the Revolutionary era generation. This article presents, evaluates, and subsequently rejects the arguments in favor of viewing the work of Trenchard and Gordon within the framework of either a classical republican or a neo-roman tradition. It argues instead that the authors fall squarely within a liberal republican tradition, embracing Locke, Mandeville, Hume, and Smith and suggests that it was in this vein that they were read by the Founding Fathers .     

Evidence-Based Policy Research to Inform the ENP: Five Recommendations for Europe and its Neighbours

The September 2014 referendum is a milestone in Scotland’s history. After 307 years of union with England and a 15-year experience with devolution, Scottish nationalism is within reach of its ultimate goal. Independence would be consensual and Scotland and the rest of the UK would retain multiple links. The EU dimension looms large in the debate and is entangled with the UK’s own review of its membership. Scotland’s referendum is part of a wider trend seeing other ‘stateless nations’ in the democratic world pursuing independence. Even if opinion polls indicate voters will likely reject secession, Scotland’s experience holds important lessons for the wider world.