Genetic and environmental influences underlying the relationship between low self-control and substance use

Purpose

The current study seeks to examine the relationship between low self-control and cigarette smoking, alcohol use, and marijuana use in adolescence and adulthood using behavioral genetic methodology.

Methods

Using a subsample of twin pairs from the National Longitudinal Study of Adolescent Health (Add Health), the current study estimates the genetic and environmental overlap between low self-control and substance use (or problems associated with substance use) across four waves of data collection.

Results

The overall pattern of results suggests that genetic factors explain a moderate proportion of the variance in low self-control and substance use in both adolescence and adulthood. Furthermore, bivariate genetic analyses reveal that the correlation between low self-control and substance use is due, for the most part, to common genetic and nonshared environmental factors.

Conclusions

The current study adds to a growing body of biosocial research on self-control and its relationship to criminal and analogous behaviors. The implications of our findings for the general theory of crime are discussed.     

Evidence for Connections Between Prosecutor-Reported Marijuana Case Dispositions and Community Youth Marijuana-Related Attitudes and Behaviors

This article examines relationships between local drug policy (as represented by prosecutor-reported case outcomes for first-offender juvenile marijuana possession cases) and youth self-reported marijuana use, perceived risk, and disapproval. Interviews with prosecutors and surveys of 8th-, 10th-, and 12th-grade students in the United States were conducted in 2000. Analyses include data from 97 prosecutors and students from 127 schools in 40 states. Results indicate significant relationships between local drug policy and youth marijuana use and attitudes. In general, more-severe dispositions are associated with less marijuana use, higher disapproval rates, and increased perceptions of great risk. Associations primarily appear to be specific to marijuana-related outcomes. Results are discussed within the framework of both deterrence and broader social norms regarding substance use.     

Maturity in Adolescent and Young Adult Offenders: The Role of Cognitive Control

This study examined the role of cognitive control in explaining the psychosocial maturity of adolescent (n = 43) and young adult male (n = 40) offenders. We separated psychosocial maturity into prosocial and criminal components, which were statistically unrelated and were explained by different variables. Individuals with higher levels of prosocial maturity were older, had better proactive cognitive control, and had better short-term memory than those with lower levels of prosocial maturity. Individuals with higher levels of criminal maturity were older and had better reactive cognitive control than those with lower levels of criminal maturity. We discuss the implications of these findings with regard to juvenile justice policy and practice.     

Time-lapse resistivity surveys over simulated clandestine graves

The aim of this study was to develop a better understanding of how electrical resistivity surveys can be used to locate clandestine graves. Resistivity surveys were conducted regularly over three simulated clandestine graves containing a pig cadaver, no cadaver and a pig cadaver wrapped in tarpaulin, respectively. Additionally, soil and groundwater samples were collected from two more simulated graves outside the survey area. The grave containing a pig cadaver was detectable from a low resistivity anomaly in the survey data. Groundwater data suggest that the resistivity anomaly associated with the surveyed pig grave was caused by a localised increase in groundwater conductivity. Wrapping a cadaver was found to initially change the resistivity response of a grave to a high resistivity anomaly. Resistivity surveys did not detect the disturbed soil in the grave that did not contain a cadaver. Although soil samples showed grave soil to be more porous than undisturbed soil, the lack of response from the grave that did not contain a cadaver suggests that disturbed soil was not responsible for the resistivity anomalies observed in this study. Resistivity surveys successfully detected all graves containing cadavers throughout the study, whilst also showing the potential to eliminate the need for mass excavation in a genuine search.     

Time-lapse geophysical investigations over a simulated urban clandestine grave

A simulated clandestine shallow grave was created within a heterogeneous, made-ground, urban environment where a clothed, plastic resin, human skeleton, animal products, and physiological saline were placed in anatomically correct positions and re-covered to ground level. A series of repeat (time-lapse), near-surface geophysical surveys were undertaken: (1) prior to burial (to act as control), (2) 1 month, and (3) 3 months post-burial. A range of different geophysical techniques was employed including: bulk ground resistivity and conductivity, fluxgate gradiometry and high-frequency ground penetrating radar (GPR), soil magnetic susceptibility, electrical resistivity tomography (ERT), and self potential (SP). Bulk ground resistivity and SP proved optimal for initial grave location whilst ERT profiles and GPR horizontal "time-slices" showed the best spatial resolutions. Research suggests that in complex urban made-ground environments, initial resistivity surveys be collected before GPR and ERT follow-up surveys are collected over the identified geophysical anomalies.     

Inclusive partners? Internationalising South Korea’s chaebol through corporate social responsibility-linked development cooperation

Abstract

In recent years, non-traditional or ‘emerging’ donors such as South Korea have organised their development cooperation models in a manner that seeks to complement the capacities of the private sector by extending the overseas activities of domestic businesses. To better understand this process, this article examines the role of South Korea’s large, family-led conglomerates (chaebol) in its growing international development sector. In particular, we focus on how the concept of corporate social responsibility (CSR) has been used to link the role of its large, and frequently scandal-ridden, private companies to international development, and, by extension, how it has helped to internationalise state–business networks long associated with the Korean developmental state. We examine two strategies through which this has been carried out. The first is by extending the logic of creating shared value (CSV, a derivative of CSR) to aid and infrastructure projects in which chaebol and other state-linked businesses have participated. The second is by directly embedding CSR-based aid initiatives in the value chains of the specific chaebol themselves.     

NATO--Upholding Ethics in International Security Policy

From a vantagepoint of the September 11 attacks on New York and Washington, this commentary assesses the role of NATO in the field of ethics in foreign policy. Jamie Shea interprets the decision to invoke the 'collective defence' Article 5 of the Washington Treaty as a continuation of the acceptance of a shared destiny which is at the heart of ethics in international security policy. The focal point of this argument is the need to develop the capacity to quickly deploy civilian capabilities, such as police, to conflict hot spots. Military success for crisis management missions depends critically on civilian success--and civilian success depends on effective law enforcement. Ultimately, ethics in international affairs does not end with fine principles and stern moral judgements, but rather with credible organisations and capabilities to ensure that democratic values are upheld. NATO is and will remain indispensable to this effort.