Adolescent Impulsivity: Findings From a Community Sample

Impulsivity is central to several psychopathological states in adolescence. However, there is little consensus concerning the definition of impulsivity and its core dimensions. In response to this lack of consensus, Whiteside and Lynam (2001, Pers. Individ. Differ. 30, 669–689) have developed the UPPS Impulsive Behavior Scale, which is able to distinguish 4 dimensions of impulsivity in adults: Urgency, lack of Premeditation, lack of Perseverance, and Sensation seeking. The question arises of whether these 4 dimensions also exist in adolescents and also of whether gender differences can be observed. A sample of teenagers (314 girls and 314 boys) completed a French version of the scale (Van der Linden et al., Eur. J. Psychol. Assess., 2005). Based on exploratory and confirmatory analyses, the 4-factor model is replicated in girls, boys, and the whole sample. Concerning gender differences, girls have a higher score for Urgency and boys a higher score for Sensation seeking. Overall, this study suggests that the UPPS is a promising tool for studying impulsivity in adolescence. Assistant, Child and Adolescent Psychology Unit, University of Geneva, Switzerland, PhD in preparation: Impulsivity, cognitive biases, cognitive deficits, and antisocial behavior in adolescence. Received PhD in 1988 from the University of Liège, Belgium. Major research topics are cognitive biases and cognitive deficits in psychopathology, impulsivity and executive functions, memory deficits in amnesia and Alzheimer's disease, and cognitive rehabilitation in schizophrenia and Alzheimer's disease.     

An Unusual Case of Death Probably Triggered by the Association of Buprenorphine at Therapeutic Dose with Ethanol and Benzodiazepines and with Very Low Norbuprenorphine Level

Buprenorphine is largely prescribed for maintenance treatment in opioid dependence due to its safety profile. Nevertheless, fatalities at therapeutic dose have been described when associated with other central nervous system depressants, such as ethanol or benzodiazepines. Here, we report a case of death due to association of buprenorphine at therapeutic dose with benzodiazepines and ethanol. Although toxicity has been often attributed to its metabolite norbuprenorphine rather than to buprenorphine itself, in our case, norbuprenorphine was not detected in urine and bile and only in traces in blood. Moreover, the presence in blood of free buprenorphine but not of glucuronide metabolites argues for an unusual early death, at the beginning of buprenorphine metabolism. We propose that in the context of prior toxic impregnation, buprenorphine directly (and not via its metabolite norbuprenorphine) acted as a triggering factor by blocking the ventilatory response, rapidly leading to fatal respiratory depression.     

Determinants of knowledge transfer: evidence from Canadian university researchers in natural sciences and engineering

This paper addresses three questions: First, what is the extent of research transfer in natural sciences and engineering among Canadian university researchers? Second, are there differences between various disciplines with regard to the extent of this transfer? And third, what are the determinants of research transfer? To answer these questions, the paper begins by differentiating between technology transfer and knowledge transfer. It then identifies the individual researcher as the unit of analysis of this study and introduces a conceptual framework derived from the resource-based approach of firms. The paper then reviews the literature on each of the factors included in the conceptual framework, beginning with the dependent variable, knowledge transfer. The conceptual framework includes four categories of resources and one category of research attributes that are likely to influence knowledge transfer. Based on a survey of 1,554 researchers funded by the Natural Sciences and Engineering Research Council of Canada (NSERC), comparisons of means of research transfer across research fields were conducted. Multivariate regression analyses were used to identify the determinants of research transfer by research field. The results of these analyses indicate that researchers transferred knowledge much more actively when no commercialization was involved than when there was commercialization of protected intellectual property. This paper thus adds to the relatively scarce evidence about knowledge transfer by examining knowledge transfer from a broader perspective than strict commercialization. The findings of this paper are also interesting for other reasons. We obtained statistical evidence indicating that researchers in certain research fields were much more active in knowledge transfer than those in other fields, thereby pointing to differences in levels of knowledge activities across research fields. Furthermore, we obtained evidence showing that only two determinants explained knowledge transfer in all the six research fields considered in this study, namely, focus of research projects on users’ needs, and linkages between researchers and research users. Statistical evidence obtained indicates that the other determinants that influence knowledge transfer vary from one research field to another, thus suggesting that different policies would be required to increase knowledge transfer in different research fields. The last part of the paper outlines the implications of the regression results for theory building, public policy and future research.     

Complex Suicide by Self‐stabbing and Drowning: A Case Report and a Review of Literature

Sharp force injuries and drowning are methods exceptionally combined in complex suicides. We report a challenging case of complex suicide by self‐stabbing and drowning that illustrates the difficulty in discriminating between homicide and suicide in such circumstances of death. The corpse of a young man was found submerged in a river, stabbed nine times with two wounds that had penetrated the thorax and had caused lung injuries and a hemopneumothorax. The postmortem and histological examinations were consistent with a death caused by drowning, but the manner of death still remained undetermined. Police investigation finally concluded to a suicide, although no suicide note had been left and the victim had no underlying diagnosed mental disorder. The parameters that may help distinguish suicide from homicide at the autopsy should be interpreted in light of a thorough forensic investigation to determine the exact manner of death in such a case.     

‘Just Thinking:’ Attitude Development,Public Opinion,and Political Representation

The role of public opinion polls in electoral democracy is undeniable because, for good or for bad, they affect, in part, the kinds of laws and policies elected officials enact. But the voices measured in polls are not perfectly representative of their populations of interest. More precisely, polls generally sing with a more “knowledgeable” accent than those they represent because of the greater tendency of the less knowledgeable to remain silent. This distortion, however, can be palliated by providing conditions more propitious to attitude development. By relying on survey-experiments conducted in Brazil and in the U.S., I present evidence that inducing people to think more carefully before answering attitude questions reduces substantially the likelihood of the less knowledgeable, which compose most of the Brazilian and American populations, to express a nonopinion response. Thus providing people with greater opportunity to think about politics—something most of them do not do very frequently—makes for more representative measures of public opinion. But the analyses also suggest that increased thought induces greater uncertainty or ambivalence among the most knowledgeable. As a whole, this paper improves our understanding on how people come to develop political attitudes and on the conditions that lead to greater attitude uncertainty or ambivalence. It also carries important lessons and implications for survey design more generally.

The Terrorist Risk and China's Policy toward Pakistan: strategic reassurance and the ‘United Front’

This paper examines how growing insecurity in Pakistan—affecting the security of Chinese expatriates and neighboring Xinjiang—impacts China's policy towards its ‘all-weather’ friend. It argues that managing the terrorist risk in a changing regional environment has led to a double adjustment in China's policy towards Pakistan. First, counterterrorist cooperation has moved up the policy agenda, albeit with a peculiar modus operandi, focused on sustaining a pro-Chinese ‘United Front’ in Pakistan. Second, Beijing has positively reassessed Pakistan's strategic value and moved towards strategic reassurance, although the construction of a trade-and-energy corridor between Gwadar and Xinjiang has been negatively affected by the risk of violence.     

An original cause of drowning in an industrial environment

We describe an original case of drowning in a wax tank in an industrial setting. The causes of death were multiple, with the association of drowning, mechanical asphyxia, and extensive superficial burns. To our knowledge, it is the first report of drowning in wax, and only 7 previous related observations of drowning in industrial environments were reported in the international literature. These accidents are more often fatal, with multiple associated causes of death due to the incriminated media. Although exceptional, these serious accidents must be prevented in potentially risky industries.