Correction: Direct characterization of graphene doping state by <i>in situ</i> photoemission spectroscopy with Ar gas cluster ion beam sputtering

Yun, Dong-Jin,Kim, Seyun,Jung, Changhoon,Lee, Chang-Seok,Sohn, Hiesang,Won, Jung Yeon,Kim, Yong Su,Chung, JaeGwan,Heo, Sung,Kim, Seong Heon,Seol, Minsu,Shin, Weon Ho The Royal Society of Chemistry 2018 Physical chemistry chemical physics Vol.20 No.4

<P>Correction for ‘Direct characterization of graphene doping state by <I>in situ</I> photoemission spectroscopy with Ar gas cluster ion beam sputtering’ by Dong-Jin Yun <I>et al.</I>, <I>Phys. Chem. Chem. Phys.</I>, 2018, 20, 615-622.</P>

學生 生活의 質 改善에 關한 硏究 ① : 大學生活經驗에 따른 新入生의 意識變化 Changes in Freshmen's Expectations for Higher Education through Collegians' Experiences

김언주,박영철,김교헌,박동철,허윤근,사명규 충남대학교 1991 學生生活硏究 Vol.18 No.-

1. 신입생들은 대체로 원만한 인간관계를 유지하고 있었다. 그런데 入學当時에 비해 한학기를 지난 후에 원만한 인간관계를 유지하고 있다고 반응한 율이 낮아졌다. 이런 점은 다른 여러가지 이유가 있겠지만 주된 이유는 대학사회라는 급격히 변화한 환경에 적응을 잘 하지 못한데서 연유된다고 생각한다. 2. 신입생들의 본교에 대한 인상이 入學初에 가졌던 好意的인 전망이 점차로 지워져 가고 있다. 그리고 본교에 入學한 데 대한 만족도 및 학과에 대한 만족도가 입학 당시에 비해 낮아졌다. 이러한 현상은 本校가 신입생들을 대상으로 孝果的인 大學生活에의 안내활동의 不振 및 貧弱에 기인하는 것 같다. 이러한 점은 학과에 대해서 만족하지 못하는 이유를 알아본 데서 단적으로 드러나고 있다. 3. 학생들은 학교에 대해 '교양있는 인격자로 양성'해 주기를 바라며, 학과교수에 대해서는 학생들을 이해하고 개인적인 관심을 기울여 달라고 요청하고 있다. 그런데 대학의 기능으로서 가장 중시해야 할 점으로서는 연구를 들고 있는데, 이점은 개인적 차원에서의 대학교육을 보는 시각과, 전체적 차원에서 대학교육을 보는 시간간의 괴리에서 기인한다고도 볼 수 있고, 다른 면으로는 학생들의 대학교육의 성격에 대한 명확한 인식의 부족에 연유한다고도 볼 수 있다. 4. 신입생 오리엔테이션 프로그램은 학생들의 학교이해, 학과이해에 별다른 도움을 주지 못한 것으로 나타났다. 그리고 학과이해를 위한 안내상대자로 학생들은 학과교수나 조교보다는 학과선배를 더 선호하는 것으로 나타났다.

선택적 후근절제술의 수술중 근전도 감시방법과 치료효과

김형일,김연희,김완호,김근수,김동찬 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.10

Selective posterior rhizotomy(SPR) has been known to reduce the spasticity as well as to improve the quality of life in patients with intractable spasticity. Twenty patients underwent SPR under intraoperative electrophysiological monitoring(IOM). Fifty-two percent of sacrolumbar rootlet were cut after electrical stimulation. Eighteen patients(90%) with spastic type of cerebral palsy showed marked reduction of spasticity and functional improvement without any complication. The patients who did not respond to SRP had mixed types of spasticity. IOM facilitate the selection of pathological rootlets regardless of anaesthetic level. intensity of electrical stimulation, and individual variability of responses. It is concluded that careful selection of surgical candidates and of pathological rootlets under IOM are important to reduce the spasticity. thereby to obtain a better outcome.

타원 필터 특성의 개선에 관한 연구

金東龍,吳成根,尹暢焄 全北大學校 1992 論文集 Vol.34 No.-

The elliptic filters are optimal in the sense that the magnitude characteristic exhibits steepest slope at the cutoff frequency. The other characteristics such as delay and step response, however, are rather undesirable. In this paper a method is advanced that progressively improves the delay and time domain characteristics at the allowable expense of the steepness of the magnitude characteristics.

임상 양상과 근전도에서 요추 신경근병증을 나타낸 후복막 육종 1예

김희상,안경회,이종하,조동익,윤동환,유승돈 경희대학교 2003 慶熙醫學 Vol.19 No.2

인천지역 TDI 노출 작업자에서 직업성천식 유병율

김형렬,김철우,홍윤철,전형준,김치년,김현수,이지나,신주연,고동희,노재훈 大韓産業醫學會 2004 대한직업환경의학회지 Vol.16 No.2

목적 : TDI는 직업성천식을 일으키는 대표적인 물질로 알려져 있다. 과거 TDI에 노출된 작업자들의 천식 발생률을 5~6%가량 보고하였고, 국내에서도 2-20%에 이르는 유병율을 보고한바 있다. 작업환경이 많이 개선되고, 노출량이 감소된 최근에도 TDI에 의한 직업성천식에 대한 보고가 많이 이루어지고 있어, 이에 대한 적극적인 조사와 진단과정을 통해 유병율을 구하고 질병발생의 변화양상을 파악해 보고자 하였다. 방법 : 인천지역에서 특수건강진단을 수행하는 2개 기관의 TDI 노출 근로자 400여명 중, 사업장의 규모가 50인 이상이며 사업주가 연구진행을 허락한 사업장에서 근무하는 근로자 중 직접적으로 TDI에 노출되는 작업에 종사하는 근로자 170명을 연구대상으로 하였다. 이들에 대해 설문지와 산업의학의사의 면담을 통한 작업관련성 평가를 근거로 정밀대상자를 선정하고 이들에 대해 메타콜린 유발시험, TDI 유발시험 등을 수행하여 직업성천식을 확인하였다. 결과 : 설문조사 결과 11명이 직업과 관련하여 천식증상을 보이는 것으로 나타났고(6.9%), 이중 7명에서 메타콜린 유발검사 양성소견을 보였다. TDI에 의한 특이유발시험 결과 1명에서 양성반응이 나타나, 이 집단에서 TDI에 의한 직업성천식의 유병율은 0.58%였다. 결론 : 과거 국내연구에서 TDI에 의한 직업성천식의 유병율이 2~20%에 이르렀던 데 비해, 본 연구에서는 0.58%로 나타났다. 이는 국외 논문에서도 나타나는 경향으로 작업장 노출량 감소로 점차 발생률이 감소하는 양상을 보이고 있다. 그러나 이미 증상이 나타난 근로자들이 부서를 옮기거나, 직장을 그만둠으로 인해 그 유병율이 과소평가되었을 가능성도 있다고 판단된다. Objecdives: This study was carried out to estimate the prevalence of isocyanate-induced occupational asthma in toluene diisocyanate (TDI) exposed workers. Methods: We examined 170 workers who had been directly exposed to TDI through a medical questionnaire, physical examination, and pulmonary function test. Based on screening examination, workers with suspected occupational asthma were selected for further evaluation such as methacholine and TDI challenge tests. Results: Eleven (6.9%) among 170 workers complained of symptoms of occupational asthma. and 7 among these 11 symptomatic workers showed positive responses to the methacholine challenge test (4.1 %). One spray painter was confirmed as having the TDI induced occupational asthma following a positive response to TDI challenge test. Conclusions: The prevalence of TDI-induced asthma was at 0.58% was lower than that for former studies (2-20%). Improved workplace environment, lower level of TDI exposure compared to the past, and the healthy workers effect may have contributed to this low rate of asthma prevalence in workers with TDI exposure.

農業系大學 校外現地實習의 現況과 改善方案

金銅淵,愼鏞仁,全太甲,崔在律 全南大學校 農漁村開發硏究所 1975 農業科學技術硏究 Vol.10 No.-

The Work Experience Program of the College of Agriculture became effective in 1972, and the Program has been exercised for four years so far. The summaries and results of the analysis on the program exercised are given in Chapter two. The followings are the points indicated the items to be more emphasized at each stage of the program; the factor expanding the gains resulting from the program, the items to recommend to all colleges for better achievement of the program in the future. Some comments for improvement are mentioned in chapter three. They are classified into two, one for colleges and the other for the ministry of education. The comments made in chapter three are 20 in number, which describe the conclusions of this research paper.

불소의 국소도포에 의한 백서 치아 무기이온 용출 억제효과

김동응,송근배,윤희숙 慶北大學校 齒科大學 1990 慶北齒大論文集 Vol.7 No.2

In order to determine the inhibitory effects by topical fluorides on dissolution of inorganic ions, 2% NaF, 10% SnF_2 and 1.23% APF gel were topically applied to the incisors of rat for two to four times. The collected incisors were decalcified with 5ml of acetic acid buffer solutions(pH 4.5)for 30min. and dissolved inorganic ions(Ca & P) were measured with atomic absorption spectrophotometer and U-V spectrophotometer. The results obtained were as follows; Two times and four times application groups of APF, SnF_2 and NaF were superior to control group(F=9.0325, p<0.01) in inhibitory effect of dissolving calcium ions, but four times application groups had no statistically significant difference(F=1.8700, p>0.05). The inhibitory effect of dissolving phosphrus appeared more effective in APF, SnF_2 and NaF groups than control group, but had no statistically significant difference both two and four times topical fluoride application group(p>0.05). In comparing of calcium dissolution, fluoride application groups were more effective than nonfluoride group. It was significantly different in two times application groups (p<0.01), but had no significantly difference in four times application groups (p>0.05). The same result was obtained in the inhibitory effect of the phosphrus dissolution.

혈우병 환자에 동반된 자발성 후복막강 출혈

김광일,김동호,우상민,이석주,김홍성,조인성,윤환중,조덕연,김삼용 충남대학교 의과대학 지역사회의학연구소 1997 충남의대잡지 Vol.24 No.1

Spontaneous retroperitoneal hemorrhage due to hemophilia A with impaired coagulopathy is very rare. Spontaneous retroperitoneal hemorrhage has been recorded as having originated from many retroperitoneal organs and blood vessels, and it may be due to local and/or systemic factors. In the majority of the patients, kidney and adrenal gland were the major site of hemorrhage. The systemic causes of spontaneous retroperitoneal hemorrhage are anticoagulation therapy and chronic hemodialysis. During the course of these treatments, hemorrhagic complications may occur at many site, including the retroperitoneal space. Blood dyscrasias including leukemia, polycythemia, sickle cell trait and hemophilia have been reported associated with spontaneous retroperitoneal hemorrhage. We report a case of spontaneous retroperitoneal hemorrhage occurred in a gemophilia A patient with brief review of literature

일부 산업장근로자들의 피로자각증상과 일상생활요인과의 관련성

김정윤,조영채,이동배,박내경 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.2

For the purpose of obtaining reference materials for the prevention and management of mental health promoting in industrial workers, this survey was investigated the relationship between subjective fatigue symptoms and its related factors such as demographic, job and health related variables. 442 cases of industrial workers which occurred in 7 factories of machine and metal manufacturing industries in Taejon industries area surveyed by self-recorded questionnaire. The results were as following: 1. In the complaint rates of fatigue, "eye strain" was the highest(21.9%) and followed by "feel like lying"(12.4%) and "feel a pain in the low back"(12.4%), "feel drowsy"(12.2%), "yawning a lot"(11.8%) and "whole body feels tired"(11.1%) in the descending order. 2. In the average weighted scores of fatigue complaints, dullness and sleepness group(Ⅰ) was the highest, followed by difficulty in concentration group(Ⅱ) and bodily projection of fatigue group(Ⅲ) in the descending order. 3. The average weighted scores of fatigue complaints by general characteristics were significantly higher in the lower age group, lower education group and unmarried divorce group. But there was no significant difference in sex. 4. By the working condition, the fatigue scores were significantly higher in manual workers and shift worker than in clerical worker and day worker. 5. By the life style, the fatigue scores were significantly lower in 7-8 sleeping hour group and every day eating breakfast group than in other groups. But fatigue score of everyday alcohol drinking group and the lower health practice indecies group were significantly higher than that of other groups. 6. By the health status and psychological factors, the fatigue scores were higher in unhealthy group, unsatisfaction income level group, unsatisfaction worker contents group and the group of badly self-control in work. 7. In the stepwised multiple regression, factors affecting the fatigue symptoms scores were depression symptom score, health status, marital status, job satisfaction, job repeatedness and body mass index.