• Title/Summary/Keyword: Forensic Science

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The Evaluation of the Primary School Students' Knowledge and Recognition on the Sexual Assault (초등학생의 성폭력에 대한 지식 및 인식 연구 -경산시내 소재 5개교 6학년생을 중심으로-)

  • Yook, Jong-Hwa;Park, Hee-Kyung;Chae, Jong-Min
    • Journal of forensic and investigative science
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    • v.3 no.1
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    • pp.25-42
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    • 2008
  • As the age of the sex crime perpetrators and victims is going down, the importance of Sex Assault Prevention Education (SAPE) is on the rise. In order to see how many students are aware of the SAPE which are currently being conducted in the local schools. A total of 600 students from five different primary schools in Kyongsan City area were questioned with the questionnaire. On the whole, the level of acknowledgement on the sexual assault is estimated as 20.52 out of total point 53.00. The point in each question is shown as low as follows; The notion of Sexual Assault (9.88 out of 19), recognition of Sexual Assault (5.45 out 11), way to cope with the sexual assault (6.60 out of 11), and knowledge on the symptom induced by the sexual assault (4.04 out of 12). The SAPE should be taught to the student from the young age frequently. The efficiency of SAPE will be increased by the health-care teachers who have the professional knowledge with the case studies and teaching materials like CD-ROMs. The health-care teachers as the SAPE lecturers require continuous training.

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Allelic Frequencies of 20 Visible Phenotype Variants in the Korean Population

  • Lim, Ji Eun;Oh, Bermseok
    • Genomics & Informatics
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    • v.11 no.2
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    • pp.93-96
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    • 2013
  • The prediction of externally visible characteristics from DNA has been studied for forensic genetics over the last few years. Externally visible characteristics include hair, skin, and eye color, height, and facial morphology, which have high heritability. Recent studies using genome-wide association analysis have identified genes and variations that correlate with human visible phenotypes and developed phenotype prediction programs. However, most prediction models were constructed and validated based on genotype and phenotype information on Europeans. Therefore, we need to validate prediction models in diverse ethnic populations. In this study, we selected potentially useful variations for forensic science that are associated with hair and eye color, iris pattern, and facial morphology, based on previous studies, and analyzed their frequencies in 1,920 Koreans. Among 20 single nucleotide polymorphisms (SNPs), 10 SNPs were polymorphic, 6 SNPs were very rare (minor allele frequency < 0.005), and 4 SNPs were monomorphic in the Korean population. Even though the usability of these SNPs should be verified by an association study in Koreans, this study provides 10 potential SNP markers for forensic science for externally visible characteristics in the Korean population.

An autopsy case of cerebral arterial thrombosis after vaccination with ChAdOx1 nCOV-19

  • Hyeji Yang;Jaeyoon Ha;Hyun Wook Kang
    • Journal of Medicine and Life Science
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    • v.19 no.2
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    • pp.74-77
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    • 2022
  • We present a fatal case of cerebral arterial thrombosis after corona virus disease 19 (COVID-19) vaccination with ChAdOx1 nCOV-19. The deceased was a 63-year-old woman with no relevant medical history. She presented symptoms of nausea, fatigue, and headache immediately after vaccination. Ten days after vaccination, she suddenly started vomiting and developed high blood pressure. The patient eventually died 23 days after vaccination. Autopsy findings showed that the cerebral arteries and internal carotid arteries were fully enlarged and were compacted with thrombi. The brain stem showed ischemic necrosis, and extravasation from this necrotic lesion led to focal subarachnoid hemorrhage around the brain stem where large blood clots still remained. No aneurysms or atherosclerotic changes were found in these arteries. We note the following three facts. Firstly, all symptoms occurred immediately after vaccination; secondly, the main cause of death was consistent with known side effects of the vaccine; and lastly, the mechanism of thrombus formation in this case goes beyond the general category of thrombogenesis known so far. While the authors know that this case does not fall into known categories of vaccine side effects, we presenting this case to demonstrate that a comprehensive review of various possibilities related to vaccine side effects is needed to establish a COVID-19 defense system.

The role of Forensic Nurse in the situation of Sexual Assault (성폭력 발생시 법의간호사의 역할)

  • Youk, Gi-Young;Kwak, Jyung-Sik
    • Journal of forensic and investigative science
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    • v.1 no.1
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    • pp.31-44
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    • 2006
  • The importance regarding the notion of immediate medical treatment and nursing for the victims of sexual crimes is not widely recognized yet in Korea. Throughout this research is focused on the nursing systems and the system of foreign countries in reference to sexual crime victims, and the conclusion is as follows. In Korea, there are currently no educational or medical institutes for the medical handling for the victims of sexual crimes, and the role of nurses in the medical institutes is insufficient. In addition, the basis for the standard of operation regarding the initial response, evidence collection, pursuit of systematical evidence and data is not established even in the sexual assault counseling/advocacy center. Therefore, it is necessary to foster the sexual assault nurse examiner for the sexual crime victims, and to develop adequate training programs based on the present situation in Korea. Though the cooperation among government, medical institutes, and social movement groups, it is essential to initiate effective and publicly-trusted specialized training programs for forensic nurses who will be fully charged with the treatment of sexual crime victims. By introducing the sexual assault nurse examiner system, it can be possible to develop advanced treatment for the child or adolescent victims of sex crimes.

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Influence of Road Tunnel on Groundwater Change Determined Using Forensic Hydrogeological Technique (수리지질학적 과학수사 기법에 의한 도로 터널이 지하수 변화에 미치는 영향)

  • Sul-Min Yun;Se-Yeong Hamm
    • Journal of Environmental Science International
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    • v.33 no.4
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    • pp.269-277
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    • 2024
  • Scientific forensic techniques are used to verify environmental impact of groundwater pollution, surface water pollution, air pollution, noise, and vibration according to residents' complaints in connection with construction and civil engineering works. In this study, we investigated the contamination of groundwater and the lowering of the groundwater level in an area surrounding a tunnel excavation site for the Andong-Yeongdeok national road, using a forensic hydrogeological technique. We reviewed the groundwater level and water quality of well GW1 in the area surrounding the tunnel excavation site as well as tunnel construction information and then we analyzed the correlations among the obtained data. Before tunnel excavation, the water level of well GW1 was lower than the tunnel elevation. Considering the relationship between the precipitation, tunnel discharge, tunnel depth, and groundwater level of well GW1, the groundwater flowed from the tunnel to well GW1. Moreover, the tunnel discharge and groundwater levels were not related to each other. The pH of well GW1 was 8.4 before tunnel excavation. During excavation, the pH declined to 8.1-8.2 at the beginning, and increased to 8.8 at the end of the excavation. The fluorine concentration in well GW1 was 2.49 mg/L, 1.91-3.22 mg/L, and 1.7-2.67 mg/L, respectively, before, during, and after the excavation. The sulfate ion concentration was very high, over 2,000 mg/L, before and during the excavation; after the excavation, it was between 200 and 323 mg/L. Turbidity was 1.47, 10.5, and 4.51 NTU before, during, and after tunnel excavation, respectively. Therefore, the excavation of this tunnel is not related to the groundwater quality of well GW1.

A Digital Forensic Framework Design for Joined Heterogeneous Cloud Computing Environment

  • Zayyanu Umar;Deborah U. Ebem;Francis S. Bakpo;Modesta Ezema
    • International Journal of Computer Science & Network Security
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    • v.24 no.6
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    • pp.207-215
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    • 2024
  • Cloud computing is now used by most companies, business centres and academic institutions to embrace new computer technology. Cloud Service Providers (CSPs) are limited to certain services, missing some of the assets requested by their customers, it means that different clouds need to interconnect to share resources and interoperate between them. The clouds may be interconnected in different characteristics and systems, and the network may be vulnerable to volatility or interference. While information technology and cloud computing are also advancing to accommodate the growing worldwide application, criminals use cyberspace to perform cybercrimes. Cloud services deployment is becoming highly prone to threats and intrusions. The unauthorised access or destruction of records yields significant catastrophic losses to organisations or agencies. Human intervention and Physical devices are not enough for protection and monitoring of cloud services; therefore, there is a need for more efficient design for cyber defence that is adaptable, flexible, robust and able to detect dangerous cybercrime such as a Denial of Service (DOS) and Distributed Denial of Service (DDOS) in heterogeneous cloud computing platforms and make essential real-time decisions for forensic investigation. This paper aims to develop a framework for digital forensic for the detection of cybercrime in a joined heterogeneous cloud setup. We developed a Digital Forensics model in this paper that can function in heterogeneous joint clouds. We used Unified Modeling Language (UML) specifically activity diagram in designing the proposed framework, then for deployment, we used an architectural modelling system in developing a framework. We developed an activity diagram that can accommodate the variability and complexities of the clouds when handling inter-cloud resources.

Simultaneous Determination of Cannabidiol, Cannabinol, and ${\Delta}^9-Tetrahydrocannabinol$ in Human Hair by Gas Chromatography-Mass Spectrometry

  • Kim Jin Young;Suh Sung Ill;In Moon Kyo;Paeng Ki-Jung;Chung Bong Chul
    • Archives of Pharmacal Research
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    • v.28 no.9
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    • pp.1086-1091
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    • 2005
  • An analytical method was developed for evaluating the cannabidiol (CBO), cannabinol (CBN), ${\Delta}^9-tetrahydrocannabinol$ $({\Delta}^9-THC)$ level in human hair using gas chromatography-mass spectrometry (GC-MS). Hair samples (50mg) were washed with isopropyl alcohol and cut into small fragments (< 1mm). After adding a deuterated internal standard, the hair samples were incubated in 1.0M NaOH for 10 min at $95^{\circ}C$. The analytes from the resulting hydrolyzed samples were extracted using a mixture of n-hexane-ethyl acetate (75:25, v/v). The extracts were then evaporated, derivatized, and injected into the GC-MS. The recovery ranges of CBD, CBN, and ${\Delta}^9-THC$ at three concentration levels were $37.9-94.5\%$ with good correlation coefficients $(r^2>0.9989)$. The intra-day precision and accuracy ranged from $-9.4\%\;to\;17.7\%$, and the inter-day precision and accuracy ranged from $-15.5\%\;to\;14.5\%$, respectively. The limits of detection (LOD) for CBD, CBN, and ${\Delta}^9-THC$ were 0.005, 0.002, and 0.006 ng/mg, respectively. The applicability of this method of analyzing the hair samples from cannabis abusers was demonstrated.