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.

생쥐 위장관의 Interstitial cells of Cajal(ICC)에 대한 면역조직화학적 연구

김영철,차경훈,신무경,임건한,김주영,안병수,김장만,양경철,박도영,오재욱,장인엽 조선대학교 2003 The Medical Journal of Chosun University Vol.28 No.1

Background and Objectives : Interstitial cells of Cajal(ICC) are the pacemakers in gastrointestinal tract that modulates gastrointestinal motiliey and these cells also transmit neural input from enteric nerves to smooth muscles. Recent work on tissues from patients with motility disorders that suggest that loss or defect in ICC could be related to pathophysiology in human and animal models. Immunolabelling of ICC in intestinal wall is recently developed by using specific marker, anti-c-kit antibody. Immunohistochemistry was done for ICC network in attempt to provide a morphological basis for the mechanism regulating gastrointestinal motility Methods : Cryosection was done, and whole-mount preparations of mouse stomach, gastrointestinal tract were immunolabelled using the anti-c-Kit. Immunolabelled ICC networks were observed under a confocal laser scanning microscopy. Results : According to three dimensional reconstruction study, we found that the c-Kit-positive celluar networks were widely distributed in the gastrointestinal muscle (1) circular muscle layer(IC-IM), (2) myenteric plexus(IC-MY), (3) deep muscular plexus(IC-DMP) in ileum, (4) submucosal plexus(IC-SMP) and longitudinal muscle layer(IC-LM) in colon. Conclusion : The characteristic profiles of ICC celluar networks provide a morphological basis upon the mechanism regulating gastrointestinal motility. Additional studies for the enteric nerves-ICC interaction are need to evaluate the detailed roles of Icc in gastrointestinal tract.

재발성 류마티즘 환자에서 발작의 유발인자

주유철,이동민,양종태,신병철,임태영,서정균,정기영,최동헌,김원,조영신,고희관 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2

Background and Objectives : Palindromic rheumatism (PR) is known to be triggered without any obviously inciting events in most patients, although, in a few cases, attacks have been noted to relate to another events such as weather change, childbirth, ingestion of certain foods, or over-exercise. The aim of this study was to characterize the triggering factors on palindromic attacks. Materials and Methods : We evaluated sixty-four patients with PR for the presence of triggering factors and the relationship between attacks and triggering factors by interview of patients. We considered that there was an probable association between episodes and PR, if episodes within 24 hours prior to PR had triggered at least 50% of all attacks and a definite association between episodes and PR, if episodes within 24 hours prior to PR had triggered 100% of all attacks. Results : In 15 patients (35.9%), there was a possible association between episodes of PR and initiating events. In 8 patients (12.5%), there was a definite association between episodes of PR and initiating events. The triggering factors were physical over-activity including exercise (19/64: 29.7%), foods, such as rawfish, crab, and chicken, including alcohol (19/96: 19.8%). However, there were no difference between the groups with and without the triggering factor in sex ratio, duration and onset of PR, the positive rate of rheumatoid factor and involved sites. Conclusion : Our observations showed that PR was triggered by physical over-activity more than in previous reports and hypersensitivity to foods was a causative factor in some patients with PR. However, patients with triggering factors had a similiar clinical profile to patients without triggering factors.

Aluminum-free low-modulus Ti–C composites that exhibit reduced image artifacts during MRI

Kim, Sung-Chul,Lee, Hong-Jun,Son, Seong-Guk,Seok, Hyun-Kwang,Lee, Kang-Sik,Shin, Seung-Young,Lee, Jae-Chul Elsevier 2015 ACTA BIOMATERIALIA Vol.12 No.-

<P><B>Abstract</B></P> <P>Feasibility studies were performed to determine the suitability of a novel synthesis technique for fabricating multifunctional composite materials for orthopedic implants. By blending paramagnetic Ti powder with diamagnetic graphite and consolidating the resulting mixtures, Ti–C composites that cannot be feasibly obtained via conventional alloying techniques or ingot metallurgy were synthesized. The synthesized composite material exhibited extremely low magnetic susceptibility (χ=67.6×10<SUP>−6</SUP>), and, as a result, exhibited fewer artifacts during magnetic resonance imaging. The strength of the composite material (σ=770MPa) was such that it could support external loads to which the human body is subjected, but its Young’s modulus was low (<I>E</I> =81.9 GPa) such that it could mitigate the stress-shielding effect. The material was also free from toxic elements such as Al and V and, thus, can be considered less harmful.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

生長抑制劑 處理가 갯개미취(Aster tripolium L.)의 生長 및 開花에 미치는 影響

申永澈,朴永達 한국화훼연구회 1995 화훼연구 Vol.4 No.1

This study was conducted to study the effect of five growth regulators on growth and flowering of Aster tripolium. 1.Plant height was somewhat reduced by 10ppm Uniconazole and 3,000ppm Damonzide foliage spray. 2.Number of flowering, width of flower were reduced with all growth retarded treatment. 3.Flowering date was delayed by all PGR treatment and PGR was also irregular in its effect. 4.Flowering percentage was markedly decreased by all PGR treatment.

Single Median Maxillary Central Incisor(SMMCI) 환아의 증례보고

신윤경,김영재,김정욱,장기택,이상훈,한세현,김종철 大韓小兒齒科學會 2007 大韓小兒齒科學會誌 Vol.34 No.4

Anatomic abnormalities of teeth development include the presence of a single maxillary central incisor at midline instead of two central incisors. The incidence of cases with a single maxillary central incisor is approximately 1 in every 50,000 live births. single median maxillary central incisor(SMMCI) may be a integral manifestation of anyone of a number of syndromes. It has been reported an association with several midline disorders which have varied in severity. A SMMCI has also been reported as an isolated finding. But in some cases, it has been considered as an incomplete expression of autosomal dominant holoprosencephaly. So any patient who appears for treatment with a SMMCI should be referred for a detailed medical examination to exclude other associated systemic abnormalities and for mutation analysis to facilitate correct diagnosis and the provision of appropriate genetic counseling. Early orthodontic treatment is needed to minimalize emotional trauma of child. This case report was about three patients with a SMMCI as isolated finding. The purpose of these case reports was to present cases of single maxillary central incisor not associated with other disorders. Single Median Maxillary Central Incisor(SMMCI)는 상악 중절치 형성부전으로 하나의 상악 중절치가 정중앙에 위치하는 치아 발달의 해부학적 이상을 의미한다. 50,000명 중에 1명 꼴로 발생할 정도로 아주 드물며 각종 증후군 및 정중선 이형성을 보이는 발달장애와 연관되어 나타나는 것으로 보고되고 있다. SMMCI는 다른 이상과 연계되지 않고 독립적으로 나타날 수도 있으나 상염색체 우성유전인 전전뇌증(holoprosencephaly)의 경미한 발현일 가능성이 있으므로 유전자 상담이 필요하다. 또 특징적인 안모 및 구강 상태를 보이므로 환아의 바람직한 신체적,정서적 발달을 위해 조기에 교정적 접근이 필요하다. 본 증례는 다른 이상 소견을 보이지 않는 세 명의 SMMCI 환아의 증례를 보고하는 바 이다.

몇가지 식물생장조절제 및 Sevin이 수양버들(Salix babylonica L.)의 화수와 엽의 생자에 미치는 영향

신영철, 서정근 忠北大學校 1986 論文集 Vol.32 No.-

-본문참고-

GSM에 적합한 인증 알고리즘의 VHDL구현

신인철,김규철,송영상 단국대학교 2000 論文集 Vol.35 No.-

When a sensitive information in sent or stored through the communication channel, the cryptographic technque must be employed in order to prevent it from attack (being exposed or modified etc.) by the illegal third party. GSM security system which is used in Europe is composed of A3, A5 and A8 ciphering algorithm. Roaming over GSM network in other countries is one of the major attractions to subscribers and authentication algorithm of each area is managed by that country. In this paper, we proposed a new block cipher algorithm for GSM ciphering system. Also we implemented the proposed cipher algorithm using VHDL and verified the VHDL design through simulation. The security of proposed cipher algorithm was verified by LC and DC.

비디오시스템과의 일체형 지면반력 Windows 프로그램 개발

신인식,문영진,정철수,이기청 서울대학교 체육연구소 2000 서울大學校 體育硏究所論集 Vol.21 No.2

The study was designed to develop the window version force platform from the former program operated in DOS version. The window version program was developed utilizing a visual-basic program of Microsoft Inc. The characteristics of the program are as follows: 1.The compatibility among the board was enhanced so that all AD board of Data Translation Inc. can be utilized. 2.The program can be operated with the connection to the image analysis system which consists of force platform and D-5100 Panasonic Video Camera. 3.The automation of analysis was achieved so that the variable can be analyzed immediately after the button on the force platform was pressed. 4.Multi-file processing was adopted so that several files can be performed simultaneously for the analysis. 5.The program was designed in user-friendly mode. The program can be operated by even novice because the main menu was composed in flowchart format. There were not significant differences between the values obtained utilizing the program developed in the present study and the former program. The present results suggest that the program developed in this study may have advantage with regard to conveniency and economical efficiency over the expensive programs imported from the foreign countries.

大田市 綠地開發에 관한 硏究

申永澈 培材大學校 1984 論文集 Vol.5 No.-

The study come to conclusion that Daejeon city make rapid progress as leading city of middle in Korea. It is said that development of open space is subject matters which Daejeon city is confronted with public pollution etc. It is supposed that open space must not be neglected in progress of city, because it is offered atmosphere of health, recreation, emotional feeling etc. It mikes a plan which develop open spen area(499.32㎢) in total city planning zone (557.72㎢) in Daejeon city on a 20 years' program, therefore it can accomplish construction of garden city through efficient conservation and development of open space in Daejeon city . The results are summarized as follow : 1. It is necessary to have positive practical application of natural resources and conservation of ecological environments is Urban area. 2. It is necessary to have positive development of river of Ryudeung-chon, Gap-chon, Daejeon-chon streamed in Urban area. 3. It is necessary to have positive plan for afforestation of main roads runned in Urban. 4. It is necessary to have a system of Urban open space.