Precision of estimating time of death by vitreous potassium--comparison of various equations.

This paper is a study of the precision of estimating the time since death comparing the equations developed by different authors. Our aim is to determine with the maximum degree of accuracy the exact time of death of the individual. We consider that the study has been fully justified by the observed differences in the results obtained from the different equations under study when the concentration of potassium in the vitreous humour was identical.     

Amid Political Spin and Online Misinformation,Fact Checking Adapts

After more than a decade of rapid growth, the worldwide fact-checking movement has surged since 2016, fuelled by rising concern about the political and social influence of online misinformation. This movement is also changing in ways that deserve close attention, as understanding and mitigating the spread of false information across digital networks has become an urgent priority for governments, charitable foundations, academic researchers, and technology companies. This research brief presents a snapshot of the field based on a mid-2019 survey designed to reveal how fact-checking organisations understood their mission, where they were directing their resources, and how their focus had shifted in the last several years. We found evidence of diverging missions in the fact-checking world, as a focus on combatting online misinformation began to supersede one on checking rhetoric from public figures.     

A. Chechi,The Settlement of International Cultural Heritage Disputes,Oxford University Press,Nex York,NY 2014, xxx + 343 pp. ISBN 978-0-19-870399-0.

Netherlands International Law Review -     

Assessing the relationship between individual characteristics, neighborhood context, and fear of crime

The purpose of this study is to examine citizens’ fear of crime based on the neighborhood in which they live. Integrating individual characteristics, citizens’ perceptions, and neighborhood structure provides a more complete perspective on understanding fear. Individuals were asked to report on proximate level of fear, social cohesion, neighborhood disorder and level of police/citizen satisfaction. Neighborhood structure emerged as a predictor of citizen's fear even after controlling for race, age, gender and education. Results indicated that perceived disorder neighborhood structure was strongly associated with citizens’ fear of crime. Considering individual characteristics, perceptions of disorder, and neighborhood context simultaneously provides an opportunity to develop a more comprehensive understanding of fear and policies to reduce fear.     

Bodies found in the waterways of New York City

We reviewed the case records for all decedents recovered from the waterways of New York City over a three year period (1997-2000). The epidemiological profile, circumstances, toxicology findings, putrefactive changes, date of recovery, length of immersion, and injuries were examined. There were 123 deaths: 52 suicides, 50 undetermined, 16 accidents, and five homicides. The causes of death included: 97 drownings, 13 undetermined, and 13 other. Of all the floating decedents, 27% were without putrefactive change. All found after two or more weeks of immersion were recovered from November to May. The detection of ethanol and illicit drugs was 53% in the accident, 41% in the suicide, and 33% in the undetermined groups. Detection of ethanol and/or drugs of abuse is not a reliable criterion to distinguish suicide from accident. The identification of the deceased is pivotal for determining the manner of these deaths. Therefore, a great reliance is placed upon the medical investigator and the police (including the missing persons bureau) to determine the circumstances and identification of the decedent.     

Fatalities associated with home-made pipe bombs in Northern Ireland

Pipe bombs are crudely constructed improvized explosive devices which are easily made at home. They are increasingly used by terrorists and others, and may inflict serious injuries and cause death. Four fatalities have occurred in association with their use in Northern Ireland between 1998 and 2002. In 2 cases, death was due to penetrating shrapnel injuries to the chest causing laceration of the great vessels, and a third fatality occurred due to a bomb fragment penetrating the cranial cavity. A pipe bomb exploded close to the back of the head of a fourth victim and this was associated with a severe brain injury. The pathologist was able to determine the position of the victim in relation to the explosion by interpreting the pattern of injuries. It seems likely that 2 of the victims had been involved in the construction, transport, or use of the devices. A third victim was entirely innocent and had been in the process of removing a pipe bomb, which had been thrown through the window of her home, when it exploded. The fourth victim was a member of the security forces who had been struck by a bomb fragment, in the region of the right eye, during a period of sectarian unrest.     

The Balance‐Sample Size Frontier in Matching Methods for Causal Inference

We propose a simplified approach to matching for causal inference that simultaneously optimizes balance (similarity between the treated and control groups) and matched sample size. Existing approaches either fix the matched sample size and maximize balance or fix balance and maximize sample size, leaving analysts to settle for suboptimal solutions or attempt manual optimization by iteratively tweaking their matching method and rechecking balance. To jointly maximize balance and sample size, we introduce the matching frontier, the set of matching solutions with maximum possible balance for each sample size. Rather than iterating, researchers can choose matching solutions from the frontier for analysis in one step. We derive fast algorithms that calculate the matching frontier for several commonly used balance metrics. We demonstrate this approach with analyses of the effect of sex on judging and job training programs that show how the methods we introduce can extract new knowledge from existing data sets.