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31.
32.
Samyn N De Boeck G Wood M Lamers CT De Waard D Brookhuis KA Verstraete AG Riedel WJ 《Forensic science international》2002,128(1-2):90-97
In a double-blind placebo controlled study on psychomotor skills important for car driving (Study 1), a 75 mg dose of +/- 3,4-methylenedioxymethamphetamine (MDMA) was administered orally to 12 healthy volunteers who were known to be recreational MDMA-users. Toxicokinetic data were gathered by analysis of blood, urine, oral fluid and sweat wipes collected during the first 5h after administration. Resultant plasma concentrations varied from 21 to 295 ng/ml, with an average peak concentration of 178 ng/ml observed between 2 and 4h after administration. MDA concentrations never exceeded 20 ng/ml. Corresponding MDMA concentrations in oral fluid, as measured with a specific LC-MS/MS method (which required only 50 microl of oral fluid), generally exceeded those in plasma and peaked at an average concentration of 1215 ng/ml. A substantial intra- and inter-subject variability was observed with this matrix, and values ranged from 50 to 6982 ng/ml MDMA. Somewhat surprisingly, even 4-5h after ingestion, the MDMA levels in sweat only averaged 25 ng/wipe. In addition to this controlled study, data were collected from 19 MDMA-users who participated in a driving simulator study (Study 2), comparing sober non-drug conditions with MDMA-only and multiple drug use conditions. In this particular study, urine samples were used for general drug screening and oral fluid was collected as an alternative to blood sampling. Analysis of oral fluid samples by LC-MS/MS revealed an average MDMA/MDEA concentration of 1121 ng/ml in the MDMA-only condition, with large inter-subject variability. This was also the case in the multiple drug condition, where generally, significantly higher concentrations of MDMA, MDEA and/or amphetamine were detected in the oral fluid samples. Urine screening revealed the presence of combinations such as MDMA, MDEA, amph, cannabis, cocaine, LSD and psilocine in the multiple-drug condition. 相似文献
33.
The investigation involved the assessment of a model predicting that family and university relationship environments are linked
with identity processes and identity states (statuses) that predict psychosocial resources among first-year university students.
A sample of 351 university students, between the ages of 18 and 21 years, completed measures of psychosocial maturity based
on Erikson's notions of ego virtues, a measure of identity processing styles (diffuse-avoidant, normative, and information
styles), identity statuses (diffusion, foreclosure, moratorium, and achievement), measures of family climate (conflict, expression,
cohesion), and assessments of university relationships with faculty, advisors, and students. Based on linear structural equations,
the model, with some adjustments, had a good fit with the data and demonstrates the complex association between perceived
family and school climate, identity formation, and the association with psychosocial resources. The investigation demonstrates
how multivariate model testing can be completed to assess some of the complexity suggested by Erik Erikson regarding identity
formation.
Gerald R Adams is a Professor of Family Relations and Human Development at the University of Guelph in Ontario, Canada. His
major interests focus on family relations, identity development, education, and prevention.
Michael Berzonsky is Professor of Psychology at State University of New York at Cortland, New York. His major interests are
identity styles, social cognition, and adolescent development.
Leo Keating is a data analyst at the University of Guelph. 相似文献
34.
Several recent studies examine the degree to which congressional behavior affects candidates’ electoral fortunes (e.g., Carson, 2005). Research examining electoral competitiveness (Bond, Campbell, & Cottrill, 2001; Koetzle, 1998) and roll call voting (Bailey & Brady, 1998; Jones, 2003) finds that diversity in the electorate mediates the impact of numerous variables upon election outcomes and representation. However, the influence of diversity on other modes of representation – such as the policy positions taken by Senate candidates–remains unexplored. We investigate the link between representation and Senate candidates’ policy positions and thereby examine the degree to which voter diversity affects candidates’ policy responsiveness. We find that diversity significantly influences responsiveness, both directly and indirectly – candidates in homogenous states are more responsive to constituents than are candidates in heterogeneous states. 相似文献
35.
Ego identity status and decision styles 总被引:1,自引:0,他引:1
It was hypothesized that the decision processes used in coping with the identity crisis would be related to more general decision styles in that identity achievers and moratoriums would tend to be reflective in their conceptual tempo while foreclosures would typically be impulsive. No prediction was made about identity diffusions. Ninety-two male college students were given an identity status interview and the Matching Familiar Figures Test. The results were consistent with the hypotheses, and in addition it was found that identity diffusions were generally impulsive. Since conceptual tempo has been found to be well established in childhood, the results of this study have implications for the early prediction of adult identity status.Received Ph.D. from SUNY/Buffalo. Recent research has been mainly concerned with the development of ego identity and correlates of the different identity statuses.Received Ph.D. from SUNY/Buffalo. Recent research has been mainly concerned with the development of ego identity and correlates of the different identity statuses. 相似文献
36.
ABSTRACT In recent times most elections in Africa have been fraught with post-elections conflicts that have had dire consequences on citizens. Kenya, Ivory Coast and Zimbabwe are few of these cases. This makes post-election conflict resolution a very important aspect of the electoral process deserving enormous attention. However, extant literature has not accorded it the needed attention. It is as a result of this, that this study investigates the nature of post-election conflict resolution in Ghana’s Fourth Republic. The study, based on a qualitative case study approach, found among others that, the Courts have been instrumental in consolidating democracy in Ghana, and stakeholders are devotedly operating within the legal framework governing elections, despite logistical, law enforcement and justice delivery challenges. The study being conscious of the progress made over the years concludes that, where democratic institutions are consolidating, the use of unconventional means to resolve conflicts is usually not an option. 相似文献
37.
38.
Fundamentalist affiliation and religious beliefs are generally related to more punitive attitudes toward criminals. Fundamentalists
also tend to attribute criminality to individual dispositional factors, and in turn, such factors are related to punitiveness.
Recently, it has also been found that compassionate dimensions of religion are related to treatment-oriented policies. It
is still not clear which dimensions of religion are related to punitive or treatment ideology and what effects religious variables
may have when tested against secular concerns about crime and crime attributions. In the present research, we test three models
of punitiveness and one model of rehabilitation with demographic, secular, religious, and attributional factors. We found
that those for whom religion is salient in their daily lives tend to believe that the death penalty should be reserved for
older offenders and that those who believe in a punitive God tend to support harsher punishments. 相似文献
39.
The mechanism of death due to confinement in an enclosed space is usually ascribed to asphyxia from oxygen deprivation. We report the case of the decomposed remains of a 23-year-old man discovered in an unused industrial size refrigerator in which the mechanism of death is heatstroke. The investigation of the death indicates the subject most likely voluntarily entered the refrigerator and for unknown reasons, closed the door. Injuries identified at autopsy and damage to the inside of the structure indicate he struggled to exit the cabinet. The autopsy shows no significant natural disease processes and toxicology studies were negative. The diagnosis of heat stroke typically rests on the evaluation of multiple features, including the age and size of the decedent, the ambient temperature, the medical history of the decedent, whole body hydration, body fat content, alcohol and drug use, medication history, general physical condition, and many other factors. The diagnosis of heatstroke due to confinement in an enclosed container requires evaluation of the heat stress of the container, the heat strain experienced by the individual, autopsy findings suggesting signs of a struggle to exit the container, and other factors. In all such cases, a careful death investigation with correlation of autopsy findings is required to accurately determine the mechanism and cause of death. We suggest that for all such deaths, physiological and environmental factors promoting hyperthermia and heatstroke be considered as a possible mechanism of death, along with those associated with the more obvious danger of asphyxiation. 相似文献
40.
Although there exist extensive results concerning equilibriain spatial models of two-party elections with probabilisticvoting, we know far less about equilibria in multiparty electionsi.e.,under what conditions will equilibria exist, and what are thecharacteristics of equilibrium configurations? We derive conditionsthat guarantee the existence of a unique Nash equilibrium anddevelop an algorithm to compute that equilibrium inmultipartyelections with probabilistic voting, in which voters chooseaccording to the behaviorists' fully specified multivariatevote model. Previously, such computations could only be approximatedby laborious search methods. The algorithm, which assumes aconditional logit choice function, can be applied to spatialcompetition for a variety of party objectives including vote-maximizationand margin-maximization, and can also encompass alternativevoter policy metrics such as quadratic and linear loss functions.We show that our conditions for an equilibrium are plausiblegiven the empirically-estimated parameters that behavioristsreport for voting behavior in historical elections. We alsoshow that parties' equilibrium positions depend not only onthe distribution of voters' policy preferences but also on theirnonpolicy-related attributes such as partisanship and sociodemographicvariables. Empirical applications to data from a recent Frenchelection illustrate the use of the algorithm and suggest thata unique Nash equilibrium existed in that election. 相似文献