Molecular Identification of Necrophagous Dermestes Species in South Korea Using Cytochrome c Oxidase Subunit I Nucleotide Sequences (Genus Dermestes)

Species identification of necrophagous insects found on a dead body is an essential key in applying medicolegal entomology to the estimation of postmortem interval (PMI). Due to limited morphological identification of insect evidence, several studies have identified species using molecular information such as DNA markers. While considerable cytochrome c oxidase subunit I (COI) gene sequence data of necrophagous fly species have been collected and annotated, those of necrophagous beetle species have not. Since necrophagous beetles such as Dermestes species have a larval period longer than that of flies, beetles are useful in even the late decomposition phase in estimating minimum PMI. To obtain the full-length COI gene sequences of six Dermestes species collected from South Korea, we designed primers for polymerase chain reaction amplification and sequencing. The obtained full COI nucleotide sequences were used for performing phylogenic analysis and comparison with previously reported sequences. The results demonstrated that the COI gene sequences could be used to identify forensically important Dermestes species in South Korea.     

The impurity characteristics of methamphetamine synthesized by Emde and Nagai method

Impurity profiling and classification of seized methamphetamine may play an important role in the interpretation of analytical results, the determination of the synthetic method employed, and the criminal investigations of drug traffic routes. Our study is focused on classifying seized methamphetamine samples according to the groups sorted by the types and quantities of impurities present in illicit methamphetamine samples. The samples (100 mg) were dissolved in 2 mL of potassium phosphate buffer (pH 7.0), extracted with 200 μL of ethyl acetate under basic condition, and then analyzed by gas chromatography-mass spectrometry (GC–MS) with a DB-1 capillary column (30 m × 0.25 mm i.d., 0.25 μm). Five impurities are used as criteria for the classification of seized methamphetamine samples by Emde and Nagai method. A total of fifty-two samples of seized methamphetamine were analyzed by GC–MS and classified by five organic impurities, and then sorted into four groups, which are Nagai type, Emde Type, Undetermined I type, and Undetermined II type.     

Family violence and Asian drinkers

This is a study of 70 consecutive referrals to the Department of Psychological Medicine, National University Hospital, for treatment of drinking problems. There were 31 Chinese and 39 Indian drinkers, with 63 males and 7 females. Family violence with physical abuse occurred in 21 cases (30%). One of three wives of drinkers had been physically abused, but no children were victims. Drinkers with family violence were generally younger and more severely dependent on alcohol than the non-violent drinkers. There was no relationship between family violence and the ethnicity or marital status of the drinkers.     

Predicting the Risk of Intimate Partner Violence: The Chinese Risk Assessment Tool for Victims

The present study reports the development and validation of the Chinese Risk Assessment Tool for Victims (CRAT-V), an actuarial instrument for the prediction of intimate partner violence (IPV) victimization in a Chinese population. Data were collected from a representative sample of 2,708 Chinese women who were married or cohabiting in Hong Kong. All participants were interviewed with a questionnaire assessing their experience of IPV victimization and personal or family factors related to IPV. As measured by the Revised Conflict Tactics Scale (CTS 2), the base rates of preceding-year physical and sexual IPV victimization were 4.6 % and 3.6 %, respectively. Using a cross-validation procedure, the present study developed a 5-factor instrument with one half of the randomly split sample and validated the resulting tool with the other half. The CRAT-V had a sensitivity of 74.0 %, a specificity of 68.3 %, an overall accuracy of 68.7 %, and an area under the receiver operating characteristic (ROC) curve of 0.75 when administered on the second half of sample. Overall, the CRAT-V may serve as a straightforward, systematic, and easy-to-administer instrument tailor-made for Chinese populations for the assessment of risk of IPV victimization against women.     

Application of three spectrometric methods to total selenium determination in postmortem material in a case of acute selenium compound poisoning

Three spectrometric methods, that is, spectrofluorimetry (SF), atomic absorption spectrometry with electrothermal atomization (ET-AAS), and atomic fluorescence spectrometry with hydride generation (HG-AFS) were used for the determination of total selenium in biological samples taken from postmortem material in a case of acute selenium compound poisoning. The precision of the SF, ET-AAS, and HG-AFS methods (RSD, n=10) was found to be in the ranges of 10.0-15.0, 3.0-6.0 and 1.0-1.5%, respectively, and the detection limit was 10.0, 4.0, and 0.1 μg/L of Se, respectively. In the case of HG-AFS, the analytical procedure takes less time and is less laborious than the other methods considered. The obtained results show the usefulness of the HG-AFS method as a supplementary analytical tool to the SF and ET-AAS methods with respect to the determination of selenium as well as the possibility of using this method as a primary one in forensic toxicology practice.     

North Korea's Internet strategy and its political implications

Abstract

During recent years, the role of information technology in shaping politics and social movements in the digital age is drawing increasing scholarly attention. There is, however, little such literature on North Korea as the country remains almost completely cut off from the Internet. Since the mid-1990s, the DPRK government has strategically developed its information and communication technology and has subsequently built a domestic intranet. Although North Korea keeps a minimal presence on the web, there are signs that the country is taking small and cautious steps to allow some social elites to take advantage of the Internet in order to leapfrog its economic development. Indeed, a high-profile defector indicated that North Korea will most likely start allowing wider but limited internet access in the near future. This paper examines North Korea's intranet and Internet policies and explores their political implications by drawing upon first-hand data from Korean sources and existing literature as well as by juxtaposing the North Korean case with other communist regimes such as China and Cuba in terms of their attempts to control and manipulate the Internet. It shows that the DPRK government is likely to learn from the Chinese and Cuban experiences and adopt a ‘Mosquito-Net’ model in controlling the Internet in an effort to attract foreign investment while keeping out information deemed threatening by the regime.     

Negative reactions to the sexually abused victims,withdrawing the complaint and outcomes of the litigation: the first data from Turkey

In order to provide psychosocial services to children with sexual abuse (SA) histories, their needs and problems should be initially identified. In this study, it is intended to determine the psychosocial problems of victims. Participants were 73 victims between aged between 16 and 21. A telephone interview form was used to collect the study data. It is found that there were several problems noted by victims, including underage marriage (15.1%), teenage pregnancy (6.9%), revictimization (13.7%), need for psychiatric support (21.9%) as well as negative social reaction (84.4%) and not being supported by family (41.1%). One-third of the victims (30.1%) had withdrawn the complaint for reasons such as SA being heard among social circle, the negative effect of court process on psychological well-being, make a new beginning and reasons related to the suspects. Finally, it was found out that 21.9% of the parents did not know the outcome of the litigation, 34.2% of them were satisfied with the case result, 43.8% of them were not satisfied with the penalty, 43.8% of the litigation process was ended in favor of the suspect and 43.9% of the suspects were punished. This study shows the need for prevention and intervention studies to solve the problems of SA victims, and it is essential to make the justice system child-friendly.     

(1S,2S)-1-Methylamino-1-phenyl-2-chloropropane: Route specific marker impurity of methamphetamine synthesized from ephedrine via chloroephedrine

Identification of route specific marker impurities of (S)-(+)-methamphetamine can provide us with very useful information for (S)-(+)-methamphetamine abuse criminal investigation. (1S,2S)-(+)-Chloropseudoephedrine and (1R,2S)-(-)-chloroephedrine are well known impurities of (S)-(+)-methamphetamine synthesized by metal catalyzed hydrogenation of (1R,2S)-(-)-ephedrine or (1S,2S)-(+)-pseudoephedrine. In this report (1S,2S)-1-methylamino-1-phenyl-2-chloropropane is identified as a route specific marker impurity from metal catalyzed hydrogenation method for the synthesis of (1R,2S)-(-)-ephedrine or (1S,2S)-(+)-pseudoephedrine via its chloro-derivative. (1S,2S)-1-Methylamino-1-phenyl-2-chloropropane is a ring-opening compound of cis-1,2-dimethyl-3-phenylaziridine by reacting with HCl in high temperature condition of GC inlet.