Benefit estimation goes to court: The case of natural resource damage assessments

This article evaluates the feasibility of performing natural resource damage assessments under the current Superfund legislation. Using the analyses developed for two recent cases, it explains the sources of the substantial divergences between plaintiffs' and defendants' estimates of these damages. Three factors explain the differences in damage estimates: (1) the time horizon used and treatment of capitalization effects of past damages; (2) the extent of the market assumed in estimating the effects of a release of hazardous wastes on the demand for the affected natural resource; and (3) the character and availability of substitutes for the resource involved.     

Depression,Suicidal Ideation,and Substance Use Among Continuation High School Students

This study examines the structural relationships among depression, suicidal ideation, gateway substance use (including cigarettes, alcohol, and marijuana), and hard substance use (including cocaine, stimulants, and inhalants) in a sample of continuation high school students at high risk for drug abuse. When the model was examined separately by ethnic group (Latino and Caucasian) and gender, significant differences among the factor correlations emerged. Compared to Latinos and females, Caucasians and males, respectively, demonstrated a greater number of significant relationships among the factors. For Latinos and females, only the depression and suicidal ideation factors were significantly correlated with each other, as were the gateway and hard substance use factors. For Caucasians and males, four of the six factors were significantly intercorrelated. One implication is that mood enhancement may be a particularly important reason for hard substance use among Caucasian and male adolescents.     

Gunshot wounds: visual and analytical procedures.

Visual examination of clothing and tissue from gunshot wounds provides information pertaining to the range of discharge of a firearm. Identification of powder grains or soot is evidence of close range discharge by a handgun. Analyses of tissue by EDX and FAAS technics are shown to supply corroborating data to visual examination in estimation of range. These methods are of particular value in differentiating contact and distant wounds when decomposed bodies are examined and when multiple layers of clothing are present.