청소년 인터넷 중독증과 우울, 사회적 불안, 또래관계 문제와의 연관성 조사

이명수,오은영,조선미,홍만제,문재석 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.4

연구목적 : 본 연구는 한국 청소년들의 인터넷 사용 현황조사와 더불어 인터넷 중독증과 우울, 사회적 불안, 또래관계 문제등과의 연관성을 알아보고자 하였다. 방 법 : 수원시 소재 고등학교 학생 869명(남/여=371/498)을 대상으로 인터넷 사용과 연관된 기본 설문을 실시하였다. 인터넷 중독여부를 알아보기 위하여 Young의 인터넷 중독척도를 사용하였고 우울증상의 평가는 Beck Depression Inventory(BDI)를 사용하였다. 사회적 불안 및 회피정도는 Social Avoidance and Distress Scale을, 부정적 평가에 대한 두려움 측정은 Fear of Negative Evaluation-Brief척도를 , 또래관계의 문제는 Index of Peer Relations척도를 사용하였다. 인터넷 중독의 현황조사를 위해서 실수와 백분율, chi-square test를 실시하였고, 인터넷 중독증과 우울, 사회적 불안 및 또래 관계 문제의 연관성을 알아보기 위하여 일원변량분석(ANOVA)을 실시하였다. 결 과 : 1) 총 869명의 대상자 중 남학생이 371명(43.7%)이었으며 여학생이 498(57.3%)이었고 평균연령은 16.27세(표준편차=0.82)로 남녀간에 유의미한 차이는 없었다. 2) 총 869명의 대상자중 291명(33.4%)이 인터넷 중독 가능성을 가지고 있는 것이고 나타났고 그 중 18명(2.07%)은 명백한 중독경향이 있는 것으로 나타났다. 본 연구에서는 인터넷중독척도 상위 30%를 중독경향군으로, 하위30%를 정상대조군으로 분류하였다. 3) 인터넷 중독척도 평균점수의 비교를 보면 남학생이 여학생보다 통계적으로 유의미하게 점수가 높음을 알 수 있었고 또 남학생이 여학생보다 중독경향군에 포함되는 비율도 더 높음을 알수 있었다. 을, 정상대조군에서는 정보검색을 상대적으로 더 많이 하는 것으로 나타났으며 게임은 두 집단간에 차이가 없었다. 5) 중독경향군에서 더 우울성향이 높고 외부의 부정적 평가에 더 예민하게 반응하고 또래관계의 문제가 많은 것으로 나타났고 사회적 상황에서의 불안정도는 집단간에 차이가 나지 않았다. 결 론 : 인터넷 중독으로 비교적 명백하게 분류된 비율은 이제까지의 다른 연구조사와 비교하여 볼 때 상대적으로 낮게 나왔으나 중독경향군까지 포함했을 겨우, 조사대상자의 약 30%에서 인터넷과 연관된 문제가 있음을 알수 있었다. 또한 인터넷 과다사용으로 문제가 되는 경우에 우울이나 또래관계등의 문제가 더 심각한 것으로 판명되어 향후 인터넷 사용자체에 대한 중독치료적 접근이외에 동반 정신병리에 대한 치료적 접근이 필요할 것으로 생각된다. Objective : The purpose of this study was to survey the present conditions of adolescents' Internet use and to investigate the relation of Internet addiction to depression, social anxiety and problems in peer relationship. Method : Eight hundred and sixty-nine high-school students(male/female=371/498) were included in the study, each of whom completed a standard questionnaire related to Internet use determined. We assessed internet addiction and depressive symptoms of adolescents using Youngs Internet Addiction Scale and the Beck Depression Inventory(BDI), respectively. Social Avoidance and Distress Scale were employed to measure social anxiety and avoidance. Fear of Negative Evaluation-Brief Scale was for fear of negative evaluation by other people. An Index of Peer relation was devoted to problems in peer relationships. Chi-square test and ANOVA were used to identify the present conditions of Internet addiction and to analyze the relations of Internet addiction with depression, social anxiety and problems in peer relationship. Results : 1) Of these 869 subjects, 371(42.7%) were male students and 498(57.3%) were female. The mean age was 16.27 years(SD=0.82) and there was no significant difference between two sex groups. 2) Of these 869 subjects, 291(33.4%) showed addictive tendency and among them 18 subjects(2.07%) were classified into obvious addiction group. In this study, we defined upper 30% of Internet addiction scores as 'addiction group' and lower 30% as 'normal control group'. 3) Male students had significantly higher mean scores of Internet addiction scale than females and there was significantly higher rates of male students in addiction group. 4) Comparing two groups, there was no statistically significant difference in terms of the preferred types of Internet media, although addiction groups tended to use chatting and E-mail more, normal control group tended to use information search more, And there was no significant difference regarding games on the Internet. 5) There was more depressive tendency in line with more sensitive response against negative-evaluation and more problems of peer relationship in addiction group. However, there was no significant difference regarding anxiety on social situation. Conclusion : Compared to previous studies, findings from this study showed that the rates classified as the group of obvious Internet addiction were relatively lower. However, including those who had tendency of Internet addiction, about 30% of all subjects had problems related to Internet use. In addition, depression or relationship problems were triggered more severely in Internet addiction group. With these findings in mind we finally suggest that therapeutic approach to comorbid psychopathology as well as Internet addiction itself should be required.

폴리메틸비닐케톤 및 메틸비닐케톤을 포함하는 공중합체들의 합성과 물성에 관한 연구

김영민,오상훈,조원제 부산대학교 공과대학 1987 硏究報告 Vol.34 No.-

The homopolymerization of methyl vinyl ketone was carried out with AIBN as an intiator in benzene under various conditions. From the result of kinetic investigation of methyl vinyl ketone, a rate equation was obtained. d[M] -------- = k_(p)[M][I]½ dt The overall activation energy for the polymerization was found to be 7Kcal/mole. Molecular weights of poly (methyl vinyl ketone) were measured by the Cannon-Fenske viscometer and GPC. Plot of intrinsic viscosity [η] versus Mw on a double logarithmic graph indicated the following equation [η]=77×10^(-5)Mw^(0.72) Poly (acetyl acetylene) was obtained by the reaction of poly (methyl vinyl ketone) with phosphorus oxychloride in chloroform at 0℃ under various reaction time. The radical copolymerizations of methyl vinyl ketone(MVK) with methyl methacrylate(MMA) and methyl acrylate (MA) were carried out with AIBN as an initiator at 50℃ in bulk. The specific extinction coefficients on poly(MVK-co-MMA) and poly (MVK-co-MA) were measured by means of UV spectrophotometer at 288nm in THF. From the calibration curves obtained by the different concentration ratios of each homopolymers, the following equations were derived. ε=0.0153+5.99×10^(-3)χ for poly (MVK-co-MMA) ε=0.112+1.102 χ for poly (MVK-co-MA) where ε is the specific extinction coefficient of the copolymer and χ is the weight fraction of MVK unit in the copolymer. The following monomer reactivity ratios were determined. r₁(MVK)=0.5 and r_(2)(MMA)=0.95 for poly (MVK-co-MMA) r₁(MVK)=1.85 and r_(2)(MA)=0.99 for poly (MVK-co-MA) From DSC thermal analysis, glass transition temperature (T_(g)) of PMVK and PMMA are 307˚K and 386˚K, respectively. The glass transition temperatures of copolymers were increased with increasing MMA component in copolymer. The conductivity of poly (acetyl acetylene) increased from 10^(-6) Ω^(-1) cm^(-1) to 10^(-4) Ω^(-1) cm^(-1) with increasing the reaction time of poly (methyl vinyl ketone) and phosphorus oxychloride. In the reaction of poly (MVK-co-MA) with phosphorus oxychloride in chloroform at 0℃, the conductivity of the obtained copolymer was 10^(-6) Ω^(-1) cm^(-1).

장애인 통합체육에 관한 생활체육지도자의 태도 연구

장명재,조영록,장완성,이애리 경희대학교 체육대학 한국체육과학연구소 2002 體育學論文集 Vol.30 No.-

Necessity of integration education is emphasized by link of disabled persons' right elevation. In the present study, physical director's attitude about integration education was investigated via questionnaire. Seoul and Kyung-gi do area's 424 physical directors participated in this study. Got following conclusion as result that analyze in physical director's individuation and effect of attitude, value, preparation, synthetic aspect. Physical director's attitude about integration education is affirmative comparatively. Distinction of sex, special physical education class taking a course, service experience, disabled student education experience, education satisfaction did not influence in physical director's behavior. This is displaying that much difficulties are in realistic aspect supporting integration education enforcement basically. Teachers who much disabled student education experiences and/or more than graduate school feel bigger burden. These results may become help to find direction to increase professionalism about disabled person integration education forward.

배양한 NG-108 세포에서 Haloperidol에 의한 c-fos mRNA의 발현

이제욱,채영규,임은정,양병환,조연규 漢陽大學校 精神健康硏究 2000 精神健康硏究 Vol.19 No.-

Cobalt가 도핑된 Anatase TiO₂박막의 제조

이재열,오영제 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1

반도성 산화물 유리의 전기적 거동에 관한 연구

이희수,오영제,박상철 연세대학교 대학원 1985 延世論叢 Vol.21 No.4

The glass formation region of V2O5-P2O5-Fe3O4 was determined, and the electrical conductivity and activation energy of the resultant semiconducting glass were measured with varying content of Fe3O4(10~20 mole %). In V2O5-P2O5-Fe3O4 system, the glass formation was measured as Fe3O4 content increases, while it was widened as P2O5 content increases. Increasing amount of Fe3O4 enhanced the glass transition temperature and the softening point. The electrical conductivity of V2O5-P3O5 glass was increased with some part of P2O5 replaced by Fe3O4, and was decreased with some part of V2O5 replaced by Fe3O4. And the activation energy showed the opposite tendency.

한국인에서 Lipoprotein lipase gene polymorphism의 빈도와 혈관질환과의 관계

정준용,박소영,김제,성인환,김영건,전은석 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2

Background : Lipoprotein lipase(LPL) is a key enzyme in the metabolism of serum triglycerides(TG) which is utilized in the peripheral tissue as free fatty acid and stored in adipose tissue. LPL gene is consisted of 10 exons which encode 475 amino acids and over 9 LPL gene polymorphisms have been reported. It's polymorphisms are related to the lipid levels and the severity of atherosclerosis in the coronary artery disease. In Korea, LPL polymorphisms has not been reported yet. This study is purposed on the incidences of LPL gene mutations and on it's relationships with blood lipid levels and the severity of atherosclerosis. Methods : Our subjects were consisted of three groups, normal controls(n=50), coronary artery disease(CAD, n=51) and cerebrovascular disease(CVD, n=52). The PCR amplified genomic DNA from peripheral white blood cell were analyzed with restriction fragment length polymorphisms (RFLP by two different restriction enzyme(PVU II, Hind III). Results : Total cholesterol(TC) were higher in CVD than in controls and in CAD (203±60mg/ dl vs 188±37, 167±42, p<0.01). Triglyceride(TG) were also elevated in CAD(166±65mg/dl vs 122±62 in controls, p<0.05). HDL cholesterol(HDL-C) were higher in controls than in CVD and CAD(49±9mg/dl vs 36±10, 44±9, p<0.05). The incidences of Hind III RFLP and PVU II RFLP has no differences among groups. Only HDL-C was elevated in Hind III RFLP(-/-) homozygotes. Conclusions : The LPL gene mutations in intron 6 and 8 have no direct effects on the lipid profiles and the severity of coronary artery disease. Although LPL is a key enzyme in TG metabolism, two mutations in this study could not change the activity of LPL, nor were not a marker of linked other site mutations. The mutation(s) in exon which encode amino acid for enzyme activity should be detected to analyze the pathophysiology of the atherogenesis.

ZrO₂- 8m/ oY₂O₃- Bi₂O₃3성분계의 분말특성 및 소결체특성

윤종석,이희수,오영제 연세대학교 산업기술연구소 1990 논문집 Vol.22 No.2

The properties of the powder and the sintered body of ZrO₂- 8m/ oY₂O₃- Bi₂O₃prepared by copreciptitation method were investigated. The crystallization temperatures of the powder were increased with increasing of amount of bismuth, and the agglomeration was developed by the increasing of calcination temperatures. The sinterability was increased with the amount of Bi₂O₃added which caused liquid phase, and the deterioration of the thermal expansions and the electrical properties were happened. The electrical properties of 8YZB system were that the electrical conductivity was from ?? and the oxygen ion transference number was from 0.75 to 0.92.

심장판막에서 TGF-β1의 생성과 분포

고재기,김남균,김민호,채제건,고규영 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.7

Study on concept of smartish advertising in age of digital media

Jei-Young Lee 한국콘텐츠학회 2017 한국콘텐츠학회 ICCC 논문집 Vol.2017 No.12