Evolution of Social Complexity in Kaya, Korea

Kwon,Hak-Soo 한국상고사학회 1992 한국상고사학보 Vol.10 No.-

Hepatic Cirrhosis Occurring in a Young Woodchuck(Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus(WHV)

Kyu-shik Jeong,정원일,Jae-yong Chung,Mi-young An,Chae-yong Jung,Gyoung-jae Lee,Jong-soo Kang,Byeong-cheol Kang,Young-heun Jee,Bruce H Williams,Young-oh Kwon,Da-hee Jeong 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Cirrhosis Occurring in a Young Woodchuck (Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus (WHV)Da-hee Jeong, Won-il Jeong, Jae-yong Chung, Mi-young An, Chae-yong Jung, Gyoung-jae Lee1, Jong-soo Kang1, Byeong-cheol Kang2, Young-heun Jee3, Bruce H Williams4, Young-oh Kwon5 and Kyu-shik Jeong*College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Korea1Shinwon Scientific Co., LTD, Research Institute, Suwon, Korea2Clinical Research Institute, Seoul National University, Seoul 110-744, Korea3College of Veterinary Medicine, Jeju National University, Jeju 690-756, Korea

대학생들의 물리 개념 오인에 관한 연구

권재술,안수영 한국교원대학교 과학교육연구소 1991 청람과학교육연구논총 Vol.1 No.1

본 연구는 대학생들이 지니고 있는 전류에 관한 오인의 유형을 조사하고, 사실의 관찰 후에 나타난 유형의 변화를 알아보는데 그 목적이 있다. 연구의 방법으로는 학생들이 사실의 관찰 후에 그들의 개념을 어떻게 변화시키는가를 알기위하여 POE(예측, 관찰, 설명) 방법을 이용하였다. 전류에 관한 오인의 유형은 단일극 모형, 충돌모형, 소모성 모형, 분배모형, 순차적 흐름모형, 일정전류 모형으로 나눠볼 수 있다. 연구결과 이들 중 소모성 모형, 순차적 흐름모형, 일정전류 모형은 많은 학생들에게 나타났다. 관찰 전에 나타났던 대부분의 오인의 유형은 관찰 후에 과학자적 개념으로 또는 다른 모형으로 전환되었으나, 소모성을 알 수 있었다. 이처럼 많은 대학생들이 중ㆍ고등학생과 마찬가지로 전류에 관하여 유사한 오인의 유형을 지니고 있었으며, 특히 이러한 오인은 주어진 문제상황에 크게 영향받고 있었다. The study focused to find out the types of misconceptions on electric current and their changes by the observation of the facts falsifying their beliefs. The method used in this study was Prodiction-Observation-Explanation (POE) technique. This method was adopted to observe how students change their conceptions by observation of facts. The identified types, those were called student's model, were unipolar model, clashing model, consumption model, distribution model, battery as constant current source model, and sequential flow model. Among those, consumption model, sequential model, and battery as constant current source model were-frequently observed. Student's concetpions on electric current were changed according to their observation. Battery as constant current source model was appeared before observation. However, it was changed other models such as consumption. In contrary, consumption model, if it were appeared in prediction stage, did not changed very much after observing the phenomenon. In this study the consumption model seemed to be most persistent model. The study concluded that considerable percentage of college students also possess the similar misconceptions that appears in lower school level such as middle schools and high schools. The misconceptions were strongly influenced by problem context.

Capsaicin이 연수후각의 흥분성 아미노산 전달물질에 미치는 영향

권수경,윤수한,이종흔 大韓齒科保存學會 1994 Restorative Dentistry & Endodontics Vol.19 No.2

연상단어 순위로 본 정신질환자의 죽음의식에 관한 연구

권혜진,이소우 중앙대학교 의과대학 의과학연구소 1983 中央醫大誌 Vol.8 No.1

The purpose of this study was to explore the death consciousness of 60 psychiatric patients hospitalized in the 3 general hospitals with similar therapeutic environments in Seoul by means of free word association method. 10 words identified to be most frequently associated with death in the Kwon's study in 1980 were used in this study. 5 hypotheses were formed to achieve the objectives of the study. It's major findings are an follows; 1. In this study suicide topped the list of the 10 words followed by 'Disease', 'Graves', 'Emptiness', 'Incurable Disease', Frustration', 'Death', 'Disaster', 'Grief', and 'Darkness' in the responses of the psychiatric patients. The first hypothesis was found statistically significant and therefore, was verified. 2. No difference statistically significant was found in the order of frequencies in the patients' association of words related to 'death' by sex or age. 3. However, there was statistically significant difference in the order of frequencies in the patients' association of words by dignosis. Schizophrenic patients associated 'death' most frequently with emptiness and neurotic patients with 'incurable disease' while in the case of psychoneurotic patients, 'suicide' topped the list. Therefore the fourth hypothesis was verified. 4. There was a statistically significant difference by behavior characteristics, and the fifth hypothesis was denied.

일개 소방서 소방관들의 외상후 스트레스 증상 및 관련요인

권순찬,송재철,이수진,김인아,고재우,류현철,김석현,김대호,정승아 大韓産業醫學會 2008 대한직업환경의학회지 Vol.20 No.3

목적: 본 연구에서는 일부지역 남자 소방관의 외상후 스트레스 증상과 관련요인을 분석하고 PTSD 고위험군의 빈도를 추정하고자 하였다. 방법: 서울 지역 한 소방서의 남자 소방대원 260명에게 설문지를 배포하였다. 그 중 한 가지 이상의 외상성 사건의 경험이 있고 IES-R-K 설문에 응답한 153명 중 우울증으로 의심되는 7명을 제외한 146명을 분석대상으로 하였다. 설문지는 일반적 특성과 작업관련 특성, IES-R-K 22문항,‘소방관과 응급구조사의 사건 스트레스인자’25개 문항을 포함하였다. 결과: 연구대상의 평균연령은 38.8(±6.8)세였으며 평균 근속기간은 12.0(±6.4)년이었다. 기혼이 118명 (80.8%)이었다. 근무형태별로는 상시주간이 20명(13.7%),격일근무가 126명(86.3%)이었다. 직능별로는 화재진압 46명(31.5%),구조 15명(10.3%),구급 26명(17.8%),운전 40명(27.4%),내근 19명(13.0%)이었다. IES-R-K 점수의 평균은 11. 3(±13.1)점이었으며 기혼자가 미혼자보다(p=0.005),24시간 격일근무자가 상시 주간근무자보다(p=0.032) 높았다. IES-R-K 점수 24/25점을 절단점으로 PTSD 고위험군의 빈도는 13.7% (20명)이었다. 외상성 사건 25개 중 경험한 종류수는 직능별로 구급과 구조에서 많았다.(p=0.000). PTSD 고위험군을 종속변수로 하고 나이와 교육수준을 보정한 다중로지스틱회귀분석에서 각각의 보정 비차비(95% CI)는 기혼 1.98(0.42∼9.30),근속년수 20년 이상 3.53(1.01∼12.38),24시간 격일근무 3. 31 (O.42∼26. 23),소방장 1.67(0.46∼6.09),외상성 사건을 경험한 종류수 2.18(0.79∼6.04)였다. 결론: 이 연구에서 서울지역의 일개 소방서에 근무하는 남자 소방관의 PTSD 고위험군의 빈도는 13.7%로 추정되어 일반인구집단의 PTSD 유병률에 비해 높은 것으로 나타났다. 외상성 사건에 무방비로 노출되어 있는 소방관들의 PTSD 위험군을 조기에 선별할 수 있는 간편한 자기기입식 설문지인 IES-R-K는 소방관의 PTSD를 조기에 개입하여 관리하는 효율적인 도구로 활용될 수 있을 것이다. 소방관들의 정신건강을 관리하고 개입이 필요한 정신질환을 조기에 발견하며 관리할 수 있는 체계적인 예방 및 관리 프로그램의 도입이 필수적이다. Objectives: To investigate the factors related with posttraumatic symptoms and to estimate the prevalence of posttraumatic disorder of urban male firefighters. Methods: From a study sample comprising 260 male firefighters from one fire station, the responses. from 146 who had experienced one or more traumatic events, responded to the 'Impact of Event Scale-Revised Korean version' (IES-R-K) and didn't show any evidence of depression were analyzed. We surveyed the firefighters using a self-administered questionnaire including general characteristics, job-related characteristics, IES-R-K, and a 'Firefighters and paramedics' incident stressor'. Results: The mean value of IES-R-K in this study was 11.3 and it was higher in the married firefighters than in the unmarried firefighters (p=0.005) and in the 24-hr shift workers than in the ordinary day shift workers (p=0.032). The frequency of posttraumatic stress disorder (PTSD) of the firefighters in this study using IES-R-K was 13.7%, with a cutoff point of 24/25. The overall number of experiences of 25 traumatic events was larger in emergency medical personnel and rescue workers than in other work functions (p=O.OOO). Conclusions: The prevalence of PTSD symptoms in firefighters was estimated to 13.7% using IES-R-K and was higher than the prevalence of PTSD in the general population. A program to manage the mental health and provide early detection for mental illness for firefighters is needed.

무선랜 기반 홈망의 QoS 제공

권수근 경주대학교 정보전자기술연구소 2007 情報電子技術論叢 Vol.6 No.-

Reality time services such as VoIP or Video streaming service require high level quality of service. Quality of service proving scheme in wireless LAN based Home networking is analysed in this paper. We analysis MAC QoS problems in IEEE 802.11. And, analysis IEEE 802.11e MAC frame added QoS control field and control frame for resource reservation. Hybrid Coordination Function define service priority depending on traffic Spec. element. Hybrid coordinator polls each terminal depending these elements. And Enhanced DCF use 8 different Inter frame Space and CWmin to discriminate traffic categories.

악교정 환자의 악교정 수술전후 발음양상에 대한 비교연구

권경환,김수남,이동근,조용민,이숙향 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.2

The purpose of this study was undertaken to determine the effects of orthognathic surgery on speech. The hyposis stated herein is that functional behaviors of the dentofacial complex, such as speech production, may be adversely affected by deviations of a structural nature(especially, Class III malocclusion) . Twenty adults with Class III malocclusion(13 female and 7 male) were studied preoperative, immediate postoperative and either 6 or 12 months postoperative lateral cephalograms. They had mandibular prognathism and had undergone mandible setback operation. The position of tongue, soft palate(Uvula), hyoid bone, respiratory track width, and pharyngeal depth were assessed on lateral cephalograms with 23 cephalometric variables, ANOVA, Paired t-tests and Pearson's product-moment correlation coefficient tests were used to evalute the operative changes in all cephalometric parameters. A experienced speech and language pathologists performed narrow phonetic transcriptions of tape-recorded words and sentences produced by each of the ninth patients and the recording tapes were analyzed by phonetic computer program(Computerized Speech Lab(CSL) Model 4300BI(U.S.A.)) These judges also recorded their ratings of each patient's overall consonants, hypernasality, hyponasality, and articulation proficiency. The results obtained are as follows ; 1.There were significant changes in distance of posterior pharyngeal wall to tongue (TI-TW2, TS-TW3) after the surgery at 6 months postoperatively(each p<0.01 p<0.05) 2.The posterior tongue point(TI, TS, PPT) moved posteriorly after surgery and remained to its changed position at 6 months postoperatively(p<0.05) . The displacement of tongue was correlated with the movement of mandibular setback amount(p<0.05). The hyoid bone moved posteriorly superiorly after immediate postoperative period. There was significant changes in hyoid bone movement after immediated post-operative period(p<0.05), but returned to its original position during the follow-up period(p>0.05) 3.The soft palate was displaced posteriorly superiorly after immediated operative period and remained to its changed position at 6 months postoperatively(p<0.05) ANS-PNS-SPT angle increasing, PPU-PPPo distance narrowing was showed after surgery, and remained its appearance 6 months postoperactively (p<0.05) 4.There were significant changes in formant value and squre diagram of vowel sound after the orthognathic surgery and the follow-up period. There were significant changes in /ㅅ/sound and posterior tongue sound. 5.The posterior movement of tongue and the posteriosuperior movement of soft palate was correlated with mandibular setback amount after orthognathic surgery. On the vowel squre diagram, the author found that the place of articulation after operation moved downward, backward, upward. 6.In assessing speech abnormalities, dental occlusion should be considered as a contributing factor. The vast majority of subjects with preoperactive misarticulations eliminated or reduced their errors following orthognathic surgery. There was significant difference in speech impovement between pre- and post-operation.

복강경 충수 절제술과 개복 충수 절제술의 비교 연구

권수인,강용익 世宗醫學硏究所 1993 世宗醫學 Vol.10 No.2

여학생 동복 하의 착용시의 생리반응과 주관적 착용감

권수애,오미경,강미영,송혜원,박진채,권리현 충북대학교 교육 ·생활연구소 생활과학연구센터 2002 생활과학연구논총 Vol.5 No.-

In this study, physiological responses and subjective sensations were investigated depending on various high school girls' lower cloth uniform in winter. Four healthy young women were selected, and they wore same underwear and jacket. The types of lower cloth were tight skirt+stocking, flared skirt+stocking, tight skirt+legings+socks, flared skirt+legings+socks, and slacks+socks. The results were as follows: 1) The effect of the type of lower cloth in winter on the skin temperature, humidity inside clothing and subjective sensations were significant. 2) It is desirable for high school girls to wear slacks in winter, Since physiological responses and subjective sensations of slacks are superior to those of skirts. 3) It is desirable for high school girls to wear flared skirt, legings, socks in winter, Since insulation and subjective sensations of flared skirts are superior to those of tight skirts.