부산·울산·경남지역 직업병 감시체계

김정일,김병권,김정원,채창호,이철호,강동묵,김지홍,김진하,김영욱,이영하,이지호,김정호,윤형렬,유철인,정백근,장태원,김운규,윤동영,강진욱,김종은,안진홍,이동준,장준호,이광영,송혜란,최영희,이용환,조병만,최홍렬,고상백,김은아,이유진,홍영습,정갑열,김정만,김준연 大韓産業醫學會 2004 대한직업환경의학회지 Vol.16 No.1

Objective: Occupational medicine specialists in the Busan, Ulsan and Kyung-Nam areas established an area-based occupational disease surveillance system and used this system to collected case information for the purpose of preventing occupational diseases Methods: l l hospital participated in this system. The authors selected five main diseases, which were hand-arm vibration syndrome (HAVS), work-related musculoskeletal disorder (WRMSD), occupational asthma, occupational skin disease and occupational and occupational lung cancer and established their case definitions. All cases were reported on the web, and real time analysis was conducted. Results: Between April 2001 and April 2003, 192 cases of HAVS, 118 cases of WRMSD, 33 cases of occupational asthma, 17 cases of occupational skin disease and 17 cases of occupational lung cancer (for a total of 377 cases of these five main diseases) were reported. most of the HAVS cases came from shipbuilding, and 172 of them (92.7%) were associated with grinding. Of the four main types of WRMSD, carpal tunnel syndrome (CTS) was the most prevalent with 46 cases and shipbuilding was also the main industry involved (83.9%). The ergonomic risk factors involved mainly associated with the hand. In 19 (57.6%) and 4 (12.1%) cases of occupational asthma, the agents involved. The causative agents of occupational lung cancer included Cr, welding fume, PAH, Ni, etc. 10(58.8%) of the cases were diagnosed as squamous cell carcinoma and 5(29.4%) as adenoma. Conclusion: This result showed that an area-based occupational disease surveillance system might provide an effective method of evaluating the prevalence of such diseases, however the Busan, Ulsan and Kyung-Nam provinces are too large to be treated as individual areas. Therefore, the authors suggest that each province should establish its own surveillance system.

장기증분원가의 산출과 활용에 관한 비판적 검토 : 통신산업의 사례 A Case of Telecommunication Industry

홍철규,안태식 대한경영학회 2003 大韓經營學會誌 Vol.16 No.5

Traditionally, regulators have relied on accounting-based historical costs for price regulation in regulated industries including telecommunications, electricity and gas. With the introduction of competition, however, the economic cost called 'long run incremental cost (LRIC)' is increasingly being adopted in these fields. This study critically analyses and discusses from the accounting and economics perspectives the 'standard cost model' which was recently developed to compute LRIC in the Korean telecommunications industry. A special attention is paid to the issues: assumptions about the degree of efficiency, departure from economic capital costs, errors on the limited utilisation of cost drivers and cost estimation, capacity costing and sensitivity, unbalanced burden of risk(real option). This cost model produces costs conceptually different from accounting costs. However, accounting scholars need to pay attention to the economic cost model as it is an important case where the abstract concept of an economic cost was applied to a real world situation. In addition, LRIC has relevance to strategic management accounting since LRIC is conceptually similar to the costs which new efficient entrants would incur and thus allows firms to understand their competitive positions. This study has also important implications for management accounting practitioners who are expected to provide cost information of the firm itself as well as outside information including regulatory environment, competitors' strategies, and new production processes and technologies etc.

國産 羊毛의 物性에 관한 硏究

楊澈坤,金洪均,安泰煥 成均館大學校 1981 論文集 Vol.30 No.-

Physical properties of wool are closely related to species of sheep, locality of production and feeding conditions. This paper describes an basic investigation of physical properties of Korean wool. Specific properties affected by crimp were also investigated. The experiment for physical properties of Korean wool was carried out by the conventional method and its for specific properties was done by load extension test. The results of those were as follows; 1. As for fineness values of wool, the quality numbers of Corriedale wool was 56's and its of Romney marsh wool was 46's-48's. 2. As for fineness, mean length, distribution of fibre length, strength and elongation of Corriedale wool were superior to those of standard wool. 3. It was found that strength per denier and elastic limit strength of both species were sligtly higher than its of standard wool 4. Uncrimping force was 1/15-1/21 of yield stress, Recovering of uncimping force and enegy in Korean wool was also significant. 5. Corriedale wool has good quality of which uncrimping force and energy would be changed by crimp. Characteristics of Corriedale wool; elasticity, softness and bulking capacity of wool itself were slightly higher than its of Romney marsh wool

國民學校 體育科 敎育課程 改善을 위한 調査硏究 : 忠南地域의 國民學校 敎師를 中心으로

朴贊弘,安哲秀 公州大學校 스포츠科學硏究所 1994 스포츠科學硏究所論文集 Vol.- No.8

The purpose of this study was to provide the fundamentals to improve the physical Education curriculum of the elementary school by analyzing the opinions of the elementary School teachers on the current physical Education Curriculum. 460 elementary school teachers (female ; 234 and Male ; 226)were selected by adopting the stratified random sampling procedure. The data were obtained by administering the questionnaire to each individual subject and treated and interpreted by first finding the Mean Scores, SDs, and Percentages, Then, Chi-Squares were employed for determining if there is any meaningful difference between groups in terms of Alma Mater, age, sex, school size, teaching career, and location of school. The Finding were as follows ; Regarding the goals of the physical education, teachers thought that. (1) Attitudes toward the physical exercise, emotion, education, improvement of basic physical skills, and development of latent physical ability were well reflected, (2) Current school curriculum was easy to understand due to its adequacy of description, (3) The hierarcy between the goals of school subjects and the goals of school grade was clear and (4) The goals of School Grades were fairs reflected, Regarding the content of the physical education, teachers thought that (1) The understand jittle about the current physical education curriculum, (2) The content of the current physical education curriculum was inadequate due to its reduudancy and poor linkage, (3) The development of basic physical skills and latent physical abilities should be emphasized in order to level up the qualisz of physical education, and (4) The sports and leisure activites should be encouraged to well prepare for the future Society. Regarding the teaching of the physical education, teachers though that (1) The desired teaching method of the physical education was the play-oriented instruction, (2) Basic physical skills and knowledge were most necessary to teach the physical education in the way of inquisitive problem solving, and (3) Various teaching methods should be introduced. Regarding the evaluation in the physical education, teachers thought that (1) Objective evaluation measures should be constructed, (2) The Major reason of unfair evaluations were due to the time shortage and the complexing of the evaluation procedures, (3) The major of the evaluation results was for the grading purpose, and (4) A variety of evaluation methods shoulds be introduced. Meaningful differences between groups in terms of Alma Mater, age, sex, school size, teaching career, and location go school were observed in several question items, but no in others.

모래의 입도분포가 모르터의 물성에 미치는 영향에 관한 연구

김경원,김문희,김유진,안흥난,허태경,현철 경성대학교 공학기술연구소 2010 공학기술연구지 Vol.16 No.-

Fineness Modulus is a term used as an index to the fineness of sand. It is well - known that the modulus distribution of sand plays an important role in achieving the desired properties of mortar. The maximum size of sand is also important parameter in mortar. These parameters affect workability, strength and unitweight of mortar. In tills study, different sand gradings were used to investigate effects of fineness moduli of sand for examination about the workability, strength and unit weight characteristics of cement mortar. Two kinds of sands with various size distribution and three kinds of fine aggregates with the similar particle size distribution (Sieve No.16~30, No.30~50, No.50~100) were used. Water-cement ratio (W/C) of mortar mix was kept constant for all the trial mixes with sand of different fineness modulus. Major findings of tills study are: (a) Fine sand with the similar size distribution reduces the workability and unit weight of cement mortar. (b) The compressive strength of mortar is not sensitive to sand grading variations. (c) The compressive strengths at the age of 28 days range from 32.1 to 54.1 MPa. (d) The sand with standard modulus distribution has better positive effects on the properties of the mortar.

董氏鍼을 加味한 治療가 中風患者의 NIHSS와 MBI상의 단기간 기능회복에 미치는 영향

조태성,손인석,김철홍,서정철,윤현민,장경전,송춘호,안창범 동의대학교 한의학연구소 2002 동의ㆍ경산 한의학 학술대회 Vol.6 No.-

頭鍼이 中風患者의 단기간 NIHSS와 MBI에 미치는 영향

류재춘,박인범,김상우,김철홍,서정철,윤현민,장경전,송춘호,안창범 동의대학교 한의학연구소 2002 동의한의연구 Vol.6 No.-

Objective ; The aim of this study was to investigate the effect of Scalp acupuncture on recovery of motor disorders in stroke patients. Methods ; Twenty two patients with poststroke-hemiplegia were randomized into two groups. Ten patients(test group) treated by 2 methods-Scalp acupuncture and body acupuncture. The other twelve patients(control group) treated only by body acupuncture. The activity of daily living was measured with a National Institutes of Health stroke scale(NIHSS) and Modified Barthel Index(MBI). The therapy was performed one a day for 2 weeks. Results ; In terms of score of NIHSS, the test group showed statistically meaningful decrease after 2 week treatment, but the control group showed statistically meaningful decrease after 1 week(p<0.05). And in terms of score of MBI, the test group did not show statistically meaningful increase but the control group showed statistically meaningful increase after 1 week(p<O.05). There was no statistically meaningful difference after 1 and 2 week treatment between the groups. Conclusions ; These results support that test group has almost same effectness compared with control group in improvement of the activity of daily living of poststroke-hemiplegic patients.

Prospective randomized comparison of clinical and angiographic outcomes between everolimus-eluting vs. zotarolimus-eluting stents for treatment of coronary restenosis in drug-eluting stents: intravascular ultrasound volumetric analysis (RESTENT-ISR trial)

Hong, Soon Jun,Ahn, Chul Min,Kim, Byeong-Keuk,Ko, Young-Guk,Hur, Seung-Ho,Yu, Cheol Woong,Lee, Seung-Jin,Choi, Cheol Ung,Kim, Je Sang,Yoon, Jung-Han,Hong, Young Joon,Choi, Jae-Woong,Choi, Seung-Hyuk,J The European Society of Cardiology 2016 European heart journal Vol.37 No.45

<P><B>Aims</B></P><P>At present no proven standard treatment for drug-eluting stent (DES) restenosis is available, and the efficacy and safety of everolimus-eluting stent (EES) and zotarolimus-eluting stent (ZES) for DES restenosis are limited. The purpose of this prospective, randomized 9-month intracoronary ultrasound (IVUS) and 3-year clinical follow-up study was to compare the effects of EESs and ZESs on neointima volume and major adverse cardiovascular events (MACEs) such as death, myocardial infarction (MI), target lesion revascularization (TLR) and stent thrombosis in DES restenosis patients.</P><P><B>Methods and results</B></P><P>Patients were eligible for this study if they were between 40 and 75 years old with in-stent restenosis >50% by quantitative coronary angiographic analysis in DES or within 5 mm of the stent edges with signs of ischaemia. Eligible patients (<I>n</I> = 304, 146 women and 158 men) were randomly assigned to receive either EES (158 patients) or ZES (146 patients). The primary endpoint of the study was to compare neointima volume between the EES and ZES groups at the 9-month follow-up IVUS. MACEs, including death, non-fatal MI, stent thrombosis and the need for repeated TLR within 3 years, were noted. The 9-month angiographic and IVUS follow-up showed no significant differences in late lumen loss (0.40 ± 0.56 vs. 0.45 ± 0.61 mm, <I>P</I> = 0.57, respectively) and neointima volume (0.51 ± 0.48 vs. 0.56 ± 0.54 mm<SUP>3</SUP>/1 mm, <I>P</I> = 0.47, respectively) in the EES and the ZES groups. Composite MACEs such as death, MI, stent thrombosis and TLR during 3-year follow-up were comparable between the two groups [15.8% (<I>n</I> = 25) in the EES group and 22.6% (<I>n</I> = 33) in the ZES group, <I>P</I> = 0.276], independent of <I>de novo</I> DES type, sex, age, body mass index, presence of diabetes, hypertension and dyslipidaemia.</P><P><B>Conclusions</B></P><P>Patients with first- and second-generation DES restenosis, both EES and ZES implantation were effective and safe in reducing neointima volume and late loss with a comparable rate of MACEs independent of cardiovascular risk factors. </P>

Utility of Radial Probe Endobronchial Ultrasound Guided Transbronchial Lung Biopsy in Bronchus Sign Negative Peripheral Pulmonary Lesions

Hong Kyung Soo,Lee Kwan Ho,Chung Jin Hong,Shin Kyeong-Cheol,Jin Hyun Jung,Jang Jong Geol,Ahn June Hong 대한의학회 2021 Journal of Korean medical science Vol.36 No.24

Background: The presence of the bronchus sign on chest computed tomography is associated with an increased diagnostic yield of radial probe endobronchial ultrasound– guided transbronchial lung biopsy (RP-EBUS-TBLB). However, the utility of RP-EBUS-TBLB for bronchus sign negative peripheral pulmonary lesions (PPLs) remains unknown. We investigated the utility of RP-EBUS-TBLB in bronchus sign negative PPLs. Methods: We retrospectively reviewed data from 109 patients who underwent RP-EBUS for bronchus sign negative PPLs from January 2019 to August 2020. TBLB was performed using RP-EBUS with a guide sheath and without fluoroscopy. The EBUS visualization and TBLB diagnostic yields were assessed. Multivariable logistic regression analyses were used to identify factors affecting the EBUS visualization and diagnostic yields. Results: The EBUS visualization yield was 74.1% (68/109). Of the 109 lung lesions, 92 were definitively diagnosed. The overall diagnostic accuracy, sensitivity, specificity, positive predictive value, and negative predictive value were 50.5% (55/109), 34.9% (29/83), 100% (26/26), 100% (29/29), and 32.5% (26/80), respectively. In multivariable analyses, the size of the lesion (≥ 20 mm; odds ratio [OR], 2.62; 95% confidence interval [CI], 1.16–5.93; P = 0.021) and the distance from the pleura (> 10 mm; OR, 2.37; 95% CI, 1.02–5.52; P = 0.045) were associated with EBUS visualization. Regarding diagnostic yield, having the probe within the lesion (OR, 28.50; 95% CI, 6.26–129.85; P < 0.001) and a solid lesion (OR, 14.58; 95% CI, 2.64–80.38; P = 0.002) were associated with diagnostic success. Pneumothorax and hemoptysis occurred in 3.7% (4/109) and 0.9% (1/109), respectively, of the patients. Conclusion: RP-EBUS-TBLB using a GS can be considered a diagnostic method in bronchus sign negative solid PPLs. Having the probe within the lesion and a solid lesion were important for diagnostic success. Complication rates were acceptable.

Synthesis of 2-Vinylindole-3-Acetic Acid Derivatives via Cyanide-Catalyzed Imino-Stetter Reaction

Seo, Hong-Ahn,Cheon, Cheol-Hong American Chemical Society etc. 2016 Journal of organic chemistry Vol.81 No.17

<P>A new method for the synthesis of 2-vinyl-indole-3-acetic acid derivatives from aldimines, which are derived from 2-aminocinnamic acid derivatives and alpha,beta-unsaturated aldehydes, via a cyanide-catalyzed imino-Stetter reaction is described. Various types of 2-aminocinnamic acid derivatives and alpha,beta-unsaturated aldehydes could be used in this protocol, and the desired 2-vinyl substituted indole-3-acetic acid derivatives were obtained in high yields. This cyanide-catalyzed imino-Stetter reaction was further extended to the preparation of indole-3-acetic acid derivatives bearing a carboxylic acid functionality at the 2-position, using aldimines obtained from glyoxylates and 2-aminocinnamic acid derivatives.</P>