청소년 동아리활동이 리더십생활기술에 미치는 영향

최창욱,김정주,송병국 미래를 여는 청소년학회 2005 미래청소년학회지 Vol.2 No.2

The purpose of this study were to investigate leadership life skills' relationship with youth circle activities participation variables and to examine the effects of youth circle activities participation on the leadership life skills. Data for this study were collected from 1,814 students in middle and high schools, and 1,808 responses were analyzed after data screening. The SPSS for Windows were used to analyze the data. Frequency, percentage, t-test, ANOVA, optimal scaling regression, and LSD test for post-hoc interpretation were employed to analyze the data with a statistical significance level of .05. The results were as follows: First, the results of ANOVA and t-test revealed that 7 youth circle activities patricipation variables(participating circle numbers, circle types, years in circle, leader or not in that circle, level of participation, level of satisfaction, level of supporting) influenced the youth leadership life skills. Second, As a result of optimal scaling regression analysis, these 7 variables accounted for 11.8% of the variance of youth leadership skills. And among these 7 variables, level of participation, level of supporting, and years in circle were identified as the comparatively important determinants of youth leadership life skills. 이 연구의 목적은 청소년 동아리활동의 효과를 검증하기 위하여 청소년 동아리활동 참여와 리더십생활기술의 차이를 검증하고, 청소년 동아리활동 참여가 리더십생활기술에 미치는 영향을 분석하는 것이었다. 이 연구의 대상은 동아리활동에 참여하고 있는 전국의 중·고등학교 청소년 1,808명이었다. 성별로는 남자 34.8%, 여자 64.8%이었고, 학교급별로는 중학교가 30.4%, 인문고가 44.3%, 실업고가 22.3%였다. 지역별로는 서울특별시가 32.6%, 광역시가 25.1%, 중소도시가 30.9%, 군지역이 10.6%였다. 조사도구는 청소년 동아리활동 참여관련 조사도구와 리더십생활기술 조사도구로 구성되어 있다. 청소년 동아리활동 참여관련 조사도구는 동아리수, 동아리 종류, 동아리 가입기간, 동아리 임원여부, 동아리 참여정도, 동아리활동 만족정도, 외부의 동아리활동 지원정도 등 7개로 설정하였다. 청소년 리더십생활기술 조사도구는 최창욱(2001)의 연구에서 개발한 것을 사용하였다. 이 연구에서 나타난 주요 결과 및 함의는 다음과 같다. 첫째, 참여한 동아리수가 많고, 비공식/사이버동아리 참여하며, 가입기간이 길고, 임원 경험이 있으며, 동아리 참여에 적극적이고 동아리활동에 만족하고 있으며, 동아리활동에 대한 지원이 많은 동아리에 참여하는 청소년 집단이 그렇지 않은 청소년 집단에 비하여 리더십생활기술 수준이 높게 나타났다. 둘째, 청소년 동아리활동 참여 관련 변수인 활동 동아리수, 동아리 종류, 동아리 가입기간, 동아리 임원여부, 동아리 참여정도, 동아리활동 만족도, 외부의 동아리활동 지원정도 등 총 7개의 변인군에 의해 종속변수인 리더십생활기술 수준의 총 변량의 11.8%를 설명하는 것으로 나타났다. 투입된 설명변수의 종속변수에 대한 영향력은 열성적으로 참여하고, 외부의 지원이 많은 동아리에 참여하고, 가입기간이 긴 청소년들의 리더십생활기술에 상대적으로 영향력이 큰 것으로 파악되었다. 동아리활동을 통하여 청소년의 리더십생활기술을 향상시키기 위해서는 무엇보다도 청소년들이 열성적으로 참여할 수 있는 여건을 조성하고, 동인을 제공해야 하고, 이를 위한 지원책을 강구할 필요가 있다.

고주파 수술기구를 이용한 안검연 양성종양제거술

최창욱,김상덕,Chang-Uk Choi,M,D,Sang-Duck Kim,M,D 대한안과학회 2005 대한안과학회지 Vol.46 No.6

Purpose: To evaluate the efficacy of the radiofrequency surgical unit for the removal of benign tumors at the eyelid margin. Methods: Twenty-five benign tumors at the eyelid margin were removed with the Ellman Surgitron F.F.P.F. Histologic examination of the excised tumors was performed in 18 of the 25 cases. Results: There were 15 eyes of 15 females and 10 eyes of 10 males with age ranging from 20.9 to 73.5 years (mean, 41.8 years). Over a mean follow-up of 21.1 months, there was no instance of recurrence in any of the patients. In addition, there were no serious complications except temporary foreign body sensation and eye discharges. Conclusions: Using the radiofrequency surgical unit for benign tumors at the eyelid margin may simplify the surgery, avoid recurrence, and produce a satisfactory cosmetic effect.

골관절염 환자에 대한 Tenxicam(Tilcotil^(�))의 효과에 대한 임상시험 결과

최창욱,나수균,이병일 최신의학사 1990 最新醫學 Vol.33 No.1

이락촌 폐흡충이 흰쥐 폐장의 비만세포에 미치는 영향

최창욱,라봉진 중앙대학교 의과대학 의과학연구소 1981 中央醫大誌 Vol.6 No.3

In order to observe the changes in number of mast cell in lungs of albino rats against Paragonimus iloktsuenensis infection, rats of three experimental groups were infected with 20 metacercariae of Paragonimus iloktsuenensis, and they were kept for 3 days, 3 weeks and 4 weeks. Right after the each end of the infection period the lung tissues were fixed in 10% neutral formalin and embedded in paraffin. Their sections were stained with Hematoxylin and Eosin for general observation, and toluidine blue for mast cells. All the sections were examined under light microscope and the results obtained were as follows: 1. In the early stages of infection with P. iloktsuenensis there were noticeable changes in lung parenchyma and mast cell numbers in comparing with normal control. 2. After four weeks of infection the invasion of lungflukes into lung parenchyma was noticed. The lesions were represented by thick and fibrosclerotic cavern, granuloma due to eggs, and the increase of peribroncheal lymphatic tissue. A number of mast cell in this infection period were found in these lesions.

상완골 근위부에 발생한 위악성 골연골종 : 1례 보고 A Case Report

최창욱,김영호,박중섭 최신의학사 1992 最新醫學 Vol.35 No.6

Lateral Geniculate Body Evoked Potentials Elicited by Visual and Electrical Stimulation

최창욱,김판상,신선애,양지연,양연식 대한안과학회 2014 Korean Journal of Ophthalmology Vol.28 No.4

Purpose: Blind individuals who have photoreceptor loss are known to perceive phosphenes with electricalstimulation of their remaining retinal ganglion cells. We proposed that implantable lateral geniculate body (LGB)stimulus electrode arrays could be used to generate phosphene vision. We attempted to refine the basicreference of the electrical evoked potentials (EEPs) elicited by microelectrical stimulations of the optic nerve,optic tract and LGB of a domestic pig, and then compared it to visual evoked potentials (VEPs) elicited byshort-flash stimuli. Methods: For visual function measurement, VEPs in response to short-flash stimuli on the left eye of thedomestic pig were assessed over the visual cortex at position Oz with the reference electrode at Fz. Afteranesthesia, linearly configured platinum wire electrodes were inserted into the optic nerve, optic track andLGB. To determine the optimal stimulus current, EEPs were recorded repeatedly with controlling the pulse andpower. The threshold of current and charge density to elicit EEPs at 0.3 ms pulse duration was about ±10 μA. Results: Our experimental results showed that visual cortex activity can be effectively evoked by stimulationof the optic nerve, optic tract and LGB using penetrating electrodes. The latency of P1 was more shortenedas the electrical stimulation was closer to LGB. The EEPs of two-channel in the visual cortex demonstrateda similar pattern with stimulation of different spots of the stimulating electrodes. We found that the LGBstimulatedEEP pattern was very similar to the simultaneously generated VEP on the control side, althoughimplicit time deferred. Conclusions: EEPs and VEPs derived from visual-system stimulation were compared. The LGB-stimulatedEEP wave demonstrated a similar pattern to the VEP waveform except implicit time, indicating prostheticbasedelectrical stimulation of the LGB could be utilized for the blind to perceive vision of phosphenes.

Isoproterenol이 심근에 미치는 영향에 대한 광학 및 전자현미경적 연구 : Light and Electron Microscopic Study

최창욱,김호덕,라봉진 중앙대학교 의과대학 의과학연구소 1984 中央醫大誌 Vol.9 No.3

For the study, twenty young rats of Wistar strain, weighing approximately 250gm, were sacrificed. For the experimental group, 8 ㎎ of isoproterenol HCI(1­/3',4'­dihydroxyphenyl/­2­isopropylaminoethanol hydrochloride) per 100gm of body weight was administered for the frequency of two times subcutaneously at intervals of 24 hours, and extraction of the hearts of the experimental animals were performed under ether anesthesia 24 hours after the second injection of isoproterenol. After extraction, the volume of each heart was measured by the Archimedes principle, and the wet weight of that was also measured. Paraffin sections of the heart tissue fixed with 10% neutral fromalin were stained with hematoxylin and eosin for routine study, and those fixed with absolute ethanol with von Kossa staining for histochemical study of calcium ion. Stained section were examined under light microscope. For electron microscopic study, the remainder part of the heart tissue was cut into one mm^3 in size, and was fixed with 2% glutaraldehyde in 0.2M phosphate buffer, pH7.4 and post-fixed with 1% osmium tetroxide in 0.2M phosphate buffer, pH7.4. After dehydration with ascending alcohols from 70% and resin infiltration, each tissue specimen was embedded into epon 812. Ultrathin sections were stianed with 4% uranyl acetate and lead citrate and were examined under JEOL200-CX transmission electron microscope. The results obtained were as follows: 1. There was a significant increase in the weight of heart of the experimental group. 2. The major site of injury was the left ventricle, especially the apex of the experimental group. 3. In the experimental group, there was widespread inflammatory cell infiltration, swelling of myocardial fibers and focal wavy appearance of them in the myocardium of the left ventricle including apex. 4. In the experimental group, there was widespread calcium ion deposit in the myocardium. 5. By electron microscopic study, there was loss glycogen granules, mitochondrial swelling, destruction of mitochondrial cristae, and infiltration of macrophages at the margin of inflummed area of myocardium of affected area.

청소년 도덕성 발달 검사도구 활용방안 및 과제

최창욱,조혜영 한국윤리교육학회 2011 한국윤리교육학회 학술대회 Vol.2011 No.2

눈물점폐쇄 환자에서 눈물점성형술과 실리콘관삽입술의 효과 비교

최창욱,서상우,김상덕,Chang Uk Choi,Sang Woo Seo,Sang Duck Kim 대한안과학회 2008 대한안과학회지 Vol.49 No.4

Purpose: To compare surgical results of two patient groups with punctal obstruction. One group underwent punctoplasty while the other group underwent silicone tube intubation. Methods: We compared postoperatively 48 eyes of 37 patients with punctal obstruction within and after one year of the procedure. 24 eyes of 17 patients had punctoplasty and 24 eyes of 20 patients had silicone tube intubation by the same surgeon. Results: Upon follow-up within one year after the punctoplasty, 13 eyes (54%) showed no epiphora, nine eyes (38%) showed intermittent epiphora, and two eyes (8%) showed persistent epiphora. However, after silicone tube intubation, 20 eyes (83%) showed no epiphora, three eyes (13%) showed intermittent epiphora, and one eye (4%) showed persistent epiphora. Over one year after the punctoplasty, one eye (4%) showed no epiphora, 19 eyes (78%) showed intermittent epiphora, and four eyes (17%) showed persistent epiphora. However, after the silicone tube intubation, 17 eyes (71%) showed no epiphora, six eyes (25%) showed intermittent epiphora, and one eye (4%) showed persistent epiphora. Conclusions: Silicone tube intubation is more effective than punctoplasty in the long term treatment of punctal obstruction. J Korean Ophthalmol Soc 49(4):543-547, 2008

망막분지정맥폐쇄로 인한 황반부종에서 허혈성과 비허혈성 간의 유리체강내 스테로이드주사의 효과 차이

최창욱,서상우,양연식.Chang Uk Choi M.D.. Sang Woo Seo M.D.. Yun Sik Yang M.D.. Ph.D. 대한안과학회 2007 대한안과학회지 Vol.48 No.1

Purpose: To investigate the improvement of visual acuity with the different effects of ischemic and perfusion type branched retinal vein occlusion (BRVO), and explore the relationship between defects of the macular capillary network and intravitreal injection of triamcinolone acetonide (IVTA) for treatment of BRVO secondary to macular edema. Methods: We compared macular capillary network condition, improvement of visual acuity due to ischemic range, and decrease of macular edema between 23 perfusion type BRVO patients and 21 ischemic type BRVO patients who were treated with IVTA for BRVO secondary to macular edema. Results: Both ischemic and perfusion type BRVO exhibited decreased macular edema and showed meaningful improvements in visual acuity (P<0.01), but did not show a relationship between the defects in the macular capillary network and improvement of visual acuity. No differences were seen in macular capillary network defects between ischemic and perfusion type BRVO. Conclusions: IVTA had an effect on the decrease in macular edema and improvement of visual acuity for both ischemic and perfusion type BRVO. However, defects in the macular capillary network do not seem to have any effect on the improvement of visual acuity.