Use of thermal drone in detection and assessment of larval mass temperature in decomposed rabbit carcasses

Manual ground searches and cadaver dogs are traditional methods for locating remains, but they can be time- and resource-intensive, resulting in the decomposition of bodies and delay in victim identification. Therefore, thermal imaging has been proposed as a potentially useful tool for detecting remains based on their temperature. This study investigated the potential of a novel search technique of thermal drones to detect surface remains through the detection of maggot mass temperatures. Two trials were carried out at Selangor, Malaysia, each utilizing 12 healthy male Oryctolagus cuniculus European white rabbits and DJI Matrice 300 RTK drone China, equipped with a thermal camera; Zenmuse H20T to record the thermal imaging footage of the carcasses at various heights (15, 30, 60–100 m) for 14 days for each trial. Our results demonstrated that the larval masses and corresponding heat emissions were at their largest during the active decay stage; therefore, all the carcasses were observable in thermal images on day 5 and remained until day 7. Statistical analyses showed that (1) no statistically significant differences in thermal images between clothed and unclothed subjects (p > 0.05); (2) 15 m above ground level was proven to be the optimal height, as it showed the greatest contrast between the carcass heat signature and the background (p < 0.005). Our data suggested the potential window of detection of thermal signatures was detectable up to 7 days post-deposition. This could be an important guideline for the search and recovery teams for operational implementation in this tropical region.     

A Nested Game Approach to Political and Economic Liberalization in Democratizing States: The Case of South Korea

South Korea enjoyed high rates of economic growth until the mid–1990s. However in mid–1997 the country went into a severe economic crisis which ultimately resulted in a request for an IMF bailout. Leading up to the crisis, the government had embarked upon democratic liberalization but not much economic liberalization. This research explores why the government would lay the foundation for political reform without creating institutions capable of imposing economic reform on the politically powerful business sector. The absence of such institutions put the government in a position where it could not respond to the emerging economic crisis. The government's inability to act eroded its own position of power and governance. From this perspective, the government's inattention to economic reform appears irrational as it led to a weakening of its own position. We build a model of political and economic liberalization showing that the government was engaged in nested games (i.e., games in multiple arenas) with the political opposition, the labor unions, and the powerful business sector. We develop an argument that strong, antiliberal economic actors create incentive for the government in a democratizing state to refrain from economic liberalization, even while moving forward with democratic liberalization.     

Defense Spending and Economic Growth around the Globe: The Direct and Indirect Link

In this study, we combine both demand- and supply-side models to investigate the direct and indirect link between defense spending and economic growth. With data from 161 states for 1990–2012, we conduct a comprehensive examination of the defense-growth nexus in the post-Cold War world. Our findings suggest that at the global level, military spending significantly dampens private investment but somewhat reduces unemployment. However, the direct economic effects of defense spending on growth are minimal at best.     

Quantification of propane in biological materials by head-space GC

Propane was measured in specimens taken from two persons who died from a LPG explosion in an apartment using head-space-GC/FID. Because of the variation of instrument performance and sample injection, the internal standard pentane was used. Calibration standards were prepared by injecting each calculated volume of pure propane gas into capped vials containing 2 ml of blood and 5 microl of internal standard. The calibration curve revealed good linearity from 0.09 microg/ml to at least 90 microg/ml. The method validation data also included repeatability and recovery. The propane quantities in blood, fat and brain tissue were between 0.27 and 71 microg/ml (microg/g) with the highest concentration observed in fat. The confirmation of propane was conducted by the means of solid phase micro-extraction and mass spectrometry.     

Eristalinus arvorum (Fabricius, 1787) (Diptera: Syrphidae) in Human Skull: A New Fly Species of Forensic Importance

A body of an unknown adult female was found within a shallow burial ground in Malaysia whereas the skull was exposed and visible on the ground. During autopsy examination, nine insect larvae were recovered from the interior of the human skull and subsequently preserved in 70% ethanol. The larvae were greyish in appearance, each with a posterior elongated breathing tube. A week after the autopsy, more larvae were collected at the burial site, and some of them were reared into adults. Adult specimens and larvae from the skull and from the burial site were sequenced to obtain DNA barcodes. Results showed all adult flies reared from the burial site, as well as the larvae collected from the skull were identified as Eristalinus arvorum (Fabricius, 1787) (Diptera: Syrphidae). Here, we report the colonization of E. arvorum larvae on a human corpse for the first time.     

Changing aspects of government–society relations in South Korea: evidence from the evolution of environmental policy governance

In South Korea, the development of environmental policy did not garner much attention from either the government or society before the mid-1980s, although policy-making in this sphere had a long history prior to this time, as with other traditional policy areas. Moreover, it is significant that mid-1980s in Korea was a period characterised by a new political–economic landscape that induced changes in the aims and roles of the government and society in policy-making. Thus, specific developments of Korea's government–society relationship may be reflected in the evolution of its environmental policy. This paper aims to analyse the changing aspects of this relationship in the area of environmental policy by examining environmental policy governance since 1971. The research results show that the government–society relationship in this policy area has been gradually transformed – from a stage of confrontation to that of complex interactions. Per the findings, this paper argues that the relationship needs to be further enhanced to a stage of institutionalisation, and explores ways of achieving this goal.