인터넷 중독 청소년들의 정신병리 및 대처 방식

안영균(Young Kyun Ahn),신영철(Young Chul Shin),고복자(Bok Ja Koh),심진현(Jin Hyun Shim),김범조(Bum Jo Kim),이승민(Seung Min Lee),이길홍(Kil Hong Lee) 한국중독정신의학회 2005 중독정신의학 Vol.9 No.1

This study was conducted to investigate the differences in psychopathology and coping strategies among internet addictors, over users and non addictors in high school students. Subjects were 273 high school students in Seoul city. Self rating questionnaires included demographic data, Young’s Internet Addiction Scale, SCL-90-R, Beck Depression Inventory, Spielberger State-Trait Anxiety Inventory, and The Way of Coping Strategy. Subjects were classified into 3 groups (addiction, over use, non addiction) by Internet Addiction Scale score. Prevalence of internet addiction was 4.3% and male adolescents were more addictive than female. Students who were mainly involved with internet chatting or game showed higher internet addiction score. The addiction group and over use group showed higher level of somatization, obsession, interpersonal sensitivity, depression, anxiety, hostility, and paranoia than non-addicted group. Addiction group and over use group used passive coping strategies more frequently in the stressful situation than nonaddicted group. Also, the regression analysis for finding out causal factors that predicts internet addiction showed that emotion relieving strategy were important variable which predict internet addiction. Interpersonal sensitivity and emotion relieving coping strategy was important to predict addiction. This study showed that problematic internet use was closely associated with psychopathology and psychiatric comorbidity. And high interpersonal sensitivity and emotion relieving coping strategy were related with internet addiction in adolescence.

원발성 복막수염의 방사선학적 소견 : 초음파와 CT 소견

구자홍,송순영,이재균,김홍자,원영준 關東大學校 醫科大學 醫科學硏究所 1999 關東醫大學術誌 Vol.3 No.1

Purpose : To describe ultrasound(US) and CT findings of primary epiploic appendicitis Materials and Methods : From March, 1999 though Novemer 1999, clinical, US, and CT findings were reviewed in nine patients with primary epiploic appendicitis (eight women and one men, aged 27-54 year[mean, 36 years]). All patients performed US and four patients performed abdominal CT. The main symptoms were rapid onset, localized abdominal pain and tenderness(left lower quagrant pain[n=8], right abdominal pain[n= 1]) Results: US revealed small, ovoid, and mass are echogenic(n=7) or isoechoic(n=2) mass, located anterolateral to the colon. The echopattern of the mass are echogenic(n=7), or isoechoic(n=2). CT performed in four patients shown small oval fatty mass with a thin peripheral rim and central high attenuation area at anterolaeral side of the colon. Some streaky infiltration are associated around the fatty mass. Conclusion: Primary epiploic appendicitis has fairy. characteristic US and CT findings that enable a rapid diagnosis and valuable far differential diagnosit of other condition of acute abdomen.

화자 식별과 얼굴 인식을 이용한 대규모 보안 시스템

홍승준,구자윤,권영헌,이건상 한양대학교 이학기술연구소 2000 이학기술연구지 Vol.2 No.

본 논문에서는 화자 식별과 얼굴 인식을 이용하여 대규모 보안 시스템을 개발하였다. 인식 에러를 줄이기 위해 전 처리 화자 식별기로 DHMM(Discrete hidden Markov Model)을 사용하였고, 후 처리기에서는 얼굴 인식을 위해 신경망을 사용하였다. Visual C++MFC을 사용하여 Sound Card와 Digital camera를 제어하였다. 그리고 본 논문에서 개발한 프로그램을 사용하여 실시간으로 실험하였다. 본 논문에서 인식에 사용한 특징 벡터로는 Filter bank energy, LSF와 Cepstrum coeffient이고, 얼굴 인식의 대표 벡터는 2차원 Filter bank energy를 사용하였다. 실험에서 사용된 사람은 학교에서 무작위로 83명을 선택하였다. Test를 위해 2049개의 음성 데이터와 365개의 얼굴 이미지를 사용하였다. 복합 모델로 구성한 본 시스템은 등록화자에 대해 98.8%의 Access rate와 비 등록화자의 99.82%의 deny rate을 나타내었다. In this paper, we developed the large scale security system using speaker identification and face recognition. In order to reduce the recognition error we used DHMM(Discrete Hidden Markov Model) in speaker identification for pre-processor and neural network in face recognition for post-processor. To test the on-line performance of total system we directly controlled the sound card and the digital camera in the environment of Visual C++MFC. And we developed the program to test the performance of the system in real time. We used filter bank energies, LSF and cepstrum coefficients as the feature vectors of speech, and the 2-dimensional filter bank energies extracted in the range of the representative feature on face. In experiments, we randomly selected 83 persons in school, and then chosen 10 persons as an enrolled person and 73 persons as a non-enrolled person. So we tested 2049 speech data and 365 image data. It turned out that the hybrid system would have 98.8% access rates for the enrolled persons and 99.82% deny rates for the non-enrolled persons.

한국인의 2중합효소연쇄반응-증폭 좌위에 대한 동위 유전자 빈도 분포

홍경자,백승연,채영규 한양대학교 이학기술연구소 2000 이학기술연구지 Vol.2 No.

Tetranucleotide STR인 HUMTH01과 HUMF13A1에 대한 대립형질과 유전형질 빈도를 한국인을 대상으로 전기영동 및 중합효소연쇄반응을 이용하여 분석하였다. HUMTH01과 HUMF13A1 유전형질 분포 양상은 Hardy-Weinberg 공식을 따랐다. 부가적으로 한국인 집단의 대립형질 빈도를 중국인과 유럽코커시안 집단의 데이터와 비교하였다. 코커시안집단에서 HUMTH01의 분포양상은 유사하였다. 하지만 한국인과 중국인 집단의 결과와 유사하였다. 본 연구에서 HUMTH01과 HUMF13A1 STR 좌위에 대한 한국인 집단 데이터베이스를 확립하였다. 이들 집단에서 STR의 대립형질빈도 분포 데이터는 인간집단유전학을 위한 연구에 유용하게 사용될 수 있을 것이다. Allele and genotype frequencies for the tetranucleotide STRs (short tandem repeats) of HUMTH01 and HUMF13A1 were investigated in Korean population using electrophoresis and PCR amplification. The HUMTH01 and the HUMF13A1 genotype distributions were in Hardy-Weinberg equilibrium. Additionary, the allele frequencies of Korean population were compared with data for the Chinese population and European Caucasian populations. There were similar distribution patterns of HUMTH01 allete frequencies among the Caucasian populations. However, Korean and Chinese populations were significantly different with them. Allele distribution pattern of Korean was more similar with Chinese population than them of European. Conclusively, the Korean population database has been established for HUMTH01 and HUMF13A1 STR loci. These data of allele frequencies distribution of STRs in population will be useful for studies on human population genetics.

ADH와 Morphine 및 Alcohol의 同時投與가 흰쥐 肝組織內 Cytochrome P-450 b_5, p-nitroanisole-O-demethylation 및 AAF hydroxylation에 미치는 影響

洪永淑,金龜子,成樂應 梨花女子大學校 韓國生活科學硏究院 1985 韓國生活科學硏究院 論叢 Vol.35 No.-

Chronic morphine administration to adult male rats has long been known to change hepatic cytochrome P-450 content and its dependent mixed function oxidase activity. More recently, acute treatment of mature male rats with a dose of morphine higher than that used chronically also has been reported to change their hepatic cytochrome P-450 In the present study, the effect of morphine and alcohol by concomitant administration of ADH on the cytochrome P-450, b_5, p-nitroanisole-O-demethylation and AAF-hydroxylation in rat liver microsomes were studied. The results are as follows; 1. The contensts of cytochrome P-450, and b_5 were increased in the liver microsomes from morphine and ADH-treated rats, whereas they were decreased in liver microsome from alcohol and ADH-treated rats. 2. After administration of morphine and ADH rats, activity p-nitroanisole-O-demethylase, mixed function oxidase system were increased, whereas they were decreased after administration of alcohol and ADH rats. 3. After administration of morphine and ADH rats, the formation of lipid peroxides were decreased, whereas they were increased after administration of alcohol and ADH rats. No correlation was found between lipid peroxidation and formation of lipid peroxidases, which were induced by morphine and ADH cytochrome P-450 content. There might be another enzyme catalyzing lipid peroxidation other than cytochrome P-450. 4. The administration of morphine and ADH increased AAF-ring-hydroxylation, compared to ADH group.

북한 이탈주민의 외상후 스트레스장애에 대한 3년 추적연구

홍창형,유정자,조영아,엄진섭,구현지,서승원,안은미,민성길,전우택 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.1

Objective : This study is a follow-up of a first survey of 200 North Korean defectors who entered South Korea in 2001. The purpose of this study is to examine changes in the current prevalence of partial PTSD and full PTSD after 3 years and to evaluate related factors. Methods : This study followed up on 151 of the 200 North Korean defectors from our first survey. 20 interviewers conducted face-to-face interviews and assisted defectors in completing a self-report assessment. The traumatic events which participants with chronic PTSD and delayed onset PTSD experienced were then examined. Results : Over the 3 years, the current prevalence rate of partial PTSD was reduced from 31.8% to 5.3%, and the current prevalence rate of full PTSD was reduced from 27.2% to 4.0%. Of particular interest was that 88.8% of those diagnosed with full or partial PTSD in the first survey had recovered after 3 years. Conclusion : The current prevalence rate of partial and full PTSD rapidly decreased during 3 years.

3次元 SCENE의 認識과 理解에 關한 小考

洪英杓,金子龍 진주여자전문대학 1990 論文集 Vol.12 No.-

視覺에 의하여 3次元 物體나 環境을 認識 또는 理解하기 위한 技術은 2次元 패턴을 對象으로 하는 境遇와 크게 다른 側面을 가진다. 本 論文에서는 3次元 scene를 認識.理解하기 위한 技術과 一般 scene를 制限하므로서 얻을 수 있는 特定 scene 모델의 設定및 그 活用이라는 立場에서 論하였다. 特定 scene 모델을 設定함으로서 畵像 特徵에서 scene 特徵으로의 變換法則이나 scene 特徵 및 모델과의 照合 알고리즘을 具體化할 수 있다. The techniques to identify and understand the 3 dimensional objects or circumstances by sight is has much difference from those of 2 dimensional. This paper studies the technique to identify and understand the 3 dimensional scence and establishs and utilities a specific scence model to be achieved by limiting general scence. By establishing the specific scence model transformation rule from image characteristics to scence characteristies and merge algorism with scence characteristics and the model can be embodied.

Covariant Harmonic-oscillator 波動函數의 直交關係

洪翰植,金英子 慶北大學校 文理科大學 1978 文理學叢 Vol.5 No.-

Orthogonality relations for the Kim-Noz covariant harmonic-oscillator wave function are discussed. It is shown that the wave functions belonging to different Lorentz frames satisfy an orthogonality relation. That is Φ_0^n(x)Φ^n'_η(x)d^4x=σ^nn'(1-β^2)^n+1/2 can be given following physical interpretalion: If η=0, the inner product becomes the three-dimensional inner product of non-relativistic quantum mechanics. If η≠0, this means that the rest-frame wave function should see the Lorentz contraction.

금강 수서생태계의 구조와 기능에 관한 연구 : 담수어류

방성자,최신석,홍영표 忠南大學校 環境問題硏究所 1995 環境硏究 Vol.13 No.-

The freshwater fish fauna in mid-lower area was investigated from March 1995 to October and its community structure was analyzed. 1. The collected fishes were classified 39 species belonging to 5 subfamilies 12 families, of which 24 species were Cyprinus family. 2. Dominant species was Hemibargus longirostris in March, Mugil cephalus in May, Culter eingenmanni in August, Microphysogobio tuntingensis in October. 3. 9 species of total collected fish were Korea endemic species and subspecies that they were Acheilognathus yamatsutae, Acanthorhodeus gracilis, Gnathopogon strigatus, Squalidus japonicas, Microphysogobio yaluensis, Culter eigenmanni, Cobitis choii, Odontobutis odontobutis interrupta. 4. In investigated stations dominant species was Sarcocheilichthys wakiyae in the site 1, Sualidus japonicas in the site 2, Erythroculter erythropterus in the sit 3, Opsariichthys bidens in the site 4, Culter eingenmani in the site 5, Mugil cephalus in the site 6. 5. In investigated stations protective species was Sarcochilichthys wakiyae, S. curriculus, Acheilognathus rhombea. 6. As a result community analysis, species diversity and species richness were in the highest value in the site 1, community structure was stable. Dominance index was in the highest value in the site 6 because Mugil cephalus was 41% of the total collected species in the same site, and species diversity was in the lowest value.

1~2기 본태성 고혈압 환자들에서 Imidapril 대 Enalapril의 항고혈압 효과를 평가하기 위한 무작위, 이중맹검 임상시험

최영진,손대원,김용진,이홍자,채인호,김효수,김철호,오병희,이명묵,박영배,채윤식,이영우 대한순환기학회 1999 Korean Circulation Journal Vol.29 No.11