Total and Marginal Cost Analysis for a High School Based Bystander Intervention

Costs of providing the Green Dot bystander-based intervention, shown to be effective in the reduction of sexual violence among Kentucky high school students, were estimated based on data from a large cluster-randomized clinical trial. Rape Crisis Center Educators were trained to provide Green Dot curriculum to students. Implementing Green Dot in schools (N = 13) randomized to the intervention, over five years, cost $1.6 M and included start-up ($58 K) and ongoing implementation ($1.55 M). Costs for adding a school ($25,510) were calculated based on the final year, where no start-up costs were incurred. Knowing the $25,510 cost estimate for adding Green Dot may be particularly useful for high school administrators or school boards when they were making economic decisions based on strong evidence of program effectiveness to reduce violence.     

Biological sex variation in bone mineral density in the cranium and femur

Objectives

Sex and age trends in bone mineral density (BMD) play an important role in the estimation of age-at-death (AAD) of unidentified human remains. Current methodologies lack the ability to precisely estimate age in older individuals. In this study, BMD of the cranium and femur measured by DXA were examined to establish their applicability for age estimation in older adults. BMD as measured by DXA, is most commonly used clinically for prediction of osteoporotic fracture risk. We hypothesized that weight-bearing and non-weight-bearing bones, the femur and cranium, respectively, would provide valuable insights for aging.

Protecting the planet: a proposal for a law of ecocide

A wide range of actions imperil the planet and threaten the future of humanity and other species. This essay notes some examples of crimes and harms damaging to the environment and human and non-human species as well as various forms of response that have called for more effective and appropriate models of justice and law than currently prevail. This leads to a discussion of several suggestions regarding the development and expression of an earth jurisprudence and to the history of a proposal that “ecocide” be recognised internationally as a crime. Analysis of documentary sources traces this idea from debates about the concept of genocide to consideration by United Nations officials as to how crimes against the environment might be defined, and shows how near such a proposal has previously come to acceptance and enactment. The article concludes with an argument for supporting a law of ecocide as the 5th Crime against Peace.     

Factors associated with contact child sexual abuse in a sample of indecent image offenders

Abstract

This study explored a sample of 244 UK adult male offenders convicted of offences involving indecent images of children (IIOC): 120 had a previous contact child sexual offence (defined as dual offenders) and 124 had no evidence of an offence against a child (defined as non-contact offenders). Offender groups were compared regarding their socio-demographic characteristics, previous convictions and IIOC possession. Key discriminatory factors that differentiated dual offenders were: access to children, previous offence history, sexual grooming and possession of IIOC that depicts similar-aged victims. In contrast, non-contact offenders could be identified from their greater amount and wider range of IIOC possession. The results suggest a homology between Internet behaviours, IIOC possession and victim selection. Implications for law enforcement agencies are discussed in terms of assisting investigative prioritisation by identifying those most at risk of committing sexual abuse against children.     

The preservation needs of public housing

Abstract

The paper examines the preservation needs of public housing from the perspective of its physical condition and its ongoing repair and replacement needs. It begins by examining the range of needs that exist today, including the level of expenditures that would be required to put the stock in working order to meet existing codes, and to ensure the long‐term viability of the development. It then explores the level of expenditures that would be required on an ongoing basis to keep the stock in good repair and to meet future capital and preventive maintenance needs. The final section addresses several important policy issues, including overall funding requirements, the cost‐effectiveness of preservation efforts compared with vouchers and new construction, the special problems of troubled public housing authorities, and the need to establish stronger incentives for capital planning.     

Notes on recent articles

An increasing number of studies in political communication focus on the “sentiment” or “tone” of news content, political speeches, or advertisements. This growing interest in measuring sentiment coincides with a dramatic increase in the volume of digitized information. Computer automation has a great deal of potential in this new media environment. The objective here is to outline and validate a new automated measurement instrument for sentiment analysis in political texts. Our instrument uses a dictionary-based approach consisting of a simple word count of the frequency of keywords in a text from a predefined dictionary. The design of the freely available Lexicoder Sentiment Dictionary (LSD) is discussed in detail here. The dictionary is tested against a body of human-coded news content, and the resulting codes are also compared to results from nine existing content-analytic dictionaries. Analyses suggest that the LSD produces results that are more systematically related to human coding than are results based on the other available dictionaries. The LSD is thus a useful starting point for a revived discussion about dictionary construction and validation in sentiment analysis for political communication.     

Controlling Local Environmental Performance: an analysis of three national environmental management programs in the context of regional disparities in China

Whether government has the political will and capacity to control pollution is crucial for environmental outcomes. A vast country such as China, with centralized policymaking but idiosyncratic local implementation of environmental regulations and drastic regional disparities in wealth, raises the question of how does the central government stimulate local environmental commitment to accommodate such diversity? In exploring this issue, this paper compares three national environmental management programs that are used as influencing and bargaining tools between the central and local governments of China: Quantitative Examination of Comprehensive Control of Urban Environment (1989), Model City for Protecting the Environment (1997) and pilot Green Gross Domestic Product (2005). Although the introduction of these schemes represents an important step forward in addressing demanding environmental issues their impact is found to be mixed. However, each scheme also has something important to offer to this particular realm of environmental management and by recognizing and compiling their comparative advantages a number of policy implications for future local commitment towards and capacity for environmental protection can be provided.