The Transaction Costs of Government Responses to the COVID-19 Emergency in Latin America

The COVID-19 pandemic has created a crisis that is challenging national and local governments to innovate in their responses to novel problems. Despite similarities to the challenges confronted in developed countries, for Latin American governments, these problems are amplified by structural obstacles such as social inequalities. These countries must respond with capacities and resources that are often limited by spoils systems and by social and political polarization. This essay provides an overview of some innovative practices in Argentina, Brazil, Chile, Colombia, and Mexico. In particular, this essay concentrates on some salient collaborative efforts in the region. To draw lessons from these practices, the authors focus on the formal and informal institutions that facilitate or obstruct collaboration across jurisdictions. The findings are discussed in terms of the transaction costs of collaboration identified in these experiences.     

Who ‘Tweets’ Where and When,and How Does it Help Understand Crime Rates at Places? Measuring the Presence of Tourists and Commuters in Ambient Populations

Journal of Quantitative Criminology - Test the reliability of geotagged Twitter data for estimating block-level population metrics across place types. Evaluate whether the proportion of Twitter...     

Postmortem dental radiography

Comparison of postmortem and antemortem dental radiographic films or digital images is a common procedure for establishing identity of human remains. This article describes some problems with producing postmortem dental radiographs in a medical examiner setting and gives methods for circumventing these difficulties. Resection of the jaws, when permitted, significantly simplifies the postmortem radiographic technique. When producing an actual postmortem panoramic dental radiograph (orthopantomogram) from a dry skull, stabilization of the specimen for exposure by the moving beam source may be accomplished simply by placing the specimen upside down on an anthropologist's skull ring. Image "burnout" in the anterior segment, which results from absence of the tissues of the neck, may be avoided by appropriate placement of radiodense objects such as "zippered" plastic bags filled with water or other fluid material, freezer gel packs, or a block of self-polymerizing acrylic. These methods may increase future postmortem dental radiography efficiency.     

Can Cephalometrics Discriminate Between the Sexes in a Diverse Juvenile Sample?

A critical component of the biological profile is sex estimation. Methods commonly used for sex estimation in adults do not work well for juveniles. Population‐specific studies have used cephalometrics to estimate juvenile sex with 80–90% accuracy. Our study attempts to estimate sex in individuals less than 18 years of age using a sample of 1618 lateral cephalograms incorporating all three Angle Class occlusions as well as population diversity. For the sample as a whole, 10 skeletal cephalometrics were found to have significant differences between the sexes. Males and females classify correctly about 50% of the time. Dividing the sample by age groups and race/ethnicity improves results for older age groups and Native Americans, Hispanics, and Asian Americans. Our results indicate that cephalometrics are not useful in determining sex of unidentified juveniles when age and race are not known.     

The neuropsychology of offending

Abstract

Structural damage or abnormality of the brain may be related to offending. What is known about the consequences of lesions to the frontal and temporal lobes and of the results of head injury, suggests psychological changes that might well enhance the risk of offending, and in particular violent offending. Evidence from two sources is reviewed, that based on studies of offender groups and that based on those follow-up studies of clinically defined samples of head injury victims which have reported offence related outcomes. Despite some methodological limitations, the balance of evidence is that frontal damage and possibly temporal lobe damage is related to offending, particularly violent offending, and that head injury can act to precipitate offence related behaviour. It is suggested that future research needs to concentrate more on the factors that mediate the link between brain damage and offending behaviour.