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홍종수(Jong Soo Hong),손영모(Yeong Mo Son),정영관(Young Gwan Chung) 한국산림과학회 1995 한국산림과학회지 Vol.84 No.4
This study was carried out for the analysis and comparison about the noise diminution effects by the height, width and density of Euonymus japonica wall, the distance of sound source, the distance of sound receiver, the height of sound source, and the height of sound receiver. The results obtained were summarized as follows; 1. After the establishment of tree wall, the volume of noise diminution measured 6.8dB and the effects of noise diminution measured heigher than before by 10.6% and t-value was significant at the 1% level 2. In simple correlation between the effects of noise diminution and variables, the density of tree wall was found as the most significant factor, and the last were found in the order of the distance of sound receiver, the width of tree wall, and the distance of sound source. 3. In partial correlation coefficients the effects of noise diminution and variables, the density of tree wall (r=-0.959) was found as the most significant factor, and the last were found in order of the distance of sound receiver (r=-0.906) and the width of tree wall (r=-0.753). 4. The estimated equation to measure the effects of noise diminution according to variables (the height of tree wall, the width of tree wall, the density of tree wall, the distance of sound source, the distance of sound receiver, the height of sound source, and the height of sound receiver) was Y=69.520-1.672X₁-1.656X₂-0.066X₃-0.248X₄-3.134X_5-0.222X_6-0.343X_7, and the coefficient of determination of this estimated equation was highly found as 0.950. 5. In semi-partial correlation coefficient the effects of noise diminution were found in the order of the density of tree wall, the distance of sound receiver, the width of tree wall, and the height of tree wall from the highest to the Lowest. Therefore, it was considered that the density of tree wall, the distance of sound receiver, the width of tree wall and the distance of sound source should be controlled effectively to increase the effects of noise diminution by Euonymus japonica wall.
채식자와 비채식자에서 동맥경화성 심장질환 위험도 비교연구
홍상인(Sang In Hong),박흥진(Heung Jin Park),곽성진(Seong Jin Kwak),박순희(Soon Hee Park),유해진(Hae Jin Yu),원동준(Dong Jun Won),박정식(Jeong Shik Park),이중건(Choong Keun Lee),안승혜(Seung Hye Ahn),구종수(Jong Soo Koo) 대한내과학회 1996 대한내과학회지 Vol.51 No.1
Objectives: Hyperlipidemia is well-known as one of the major risk factors of atherosclerotic heart disease. Previous reports indicate that reduction of meat and dairy product consumption has reduced development of coronary heart disease. This study was designed to assess prospectively the difference in blood level of various lipids and coronary artery disease risk between vegetarian and non-vegetarian in Korean adults. Methods :100 vegetarians and 82 non-vegetarians were recruited for lipid test including total cholesterol, triglyceride, HDL-cholesterol, Apo A-I and Apo B during annual routine physical examination. Coronary risk and relative risk were analyzed according to the Framingham study data base using computerized calculation with variables including cholesterol, age, sex, blood pressure, smoking history and diabetes. To evaluate the influence of diet to coronary disease risk, 42 vegetarians and 97 non-vegetarians without other coronary risk factors were analyzed same manner, Result: 1) Total cholesterol was significantly lower in vegetarian groups (group A: 161.4mg/d1±6.76, group C: 160.62mg/dl±28.8) compared to non-vegetarians groups(group B: 180.65mg/dl±5.13, group D: 189.05 mg/dl 37.8)(p<0.01). 2) Other lipid values did not show significant difference. 3) Coronary risk was significantly lower in vegetarian groups compared to non-vegetarians(group A : 1.48% vs. group B: 1.78%; group C: 2.0% vs. group D: 6%). 4) Relative risk was also significantly lower in vegetarian groups compared to non-vegetarian groups (group A: 0.75±0.31 vs. group B: 1.00±0.41; group C: 0.74±0.2 vs. group D: 1.09±0.44) Conclusion: This study shows vegetarian group has significantly lower total cholesterol level and reduced coronary heart disease risk compared to non-vegetarian group.
알레르기접촉피부염 환자에서 첩포검사 결과의 분석 - 동일기관에서의 10년 전 결과와의 비교
정종헌 ( Jong Heon Jeong ),홍종수 ( Jong Soo Hong ),이승호 ( Seung Ho Lee ),이애영 ( Ai-young Lee ) 대한피부과학회 2020 대한피부과학회지 Vol.58 No.4
Background: Causative antigens in allergic contact dermatitis (ACD) can be changed by several variables, including time and place. Change in antigens over a period of time in the same institution is one way to reduce the variables; however, these investigations have rarely been performed in Korea. Objective: To investigate the change in patch test results by comparing with the results obtained 10 years ago at the same hospital. Methods: Patch test results were analyzed retrospectively through the medical records of patients with suspected ACD who underwent the patch test using Korean standard series between September 2015 and September 2018. The institutional Review Board of the Dongguk University I1san Hospital approved this study. The results of the patch test were compared with those obtained 10 years ago. Results: A total of 360 patients (males: 142, females: 218) were included. Compared with the results obtained 10 years ago, the positivity rates of metal-related allergens (nickel sulfate, cobalt chloride, and potassium dichromate), fragrance allergens, and 4-phenylenediamine base were increased, whereas the positivity rates of mercury ammonium chloride, thimerosal, and formaldehyde were decreased. Conclusion: The patch test results obtained at the same hospital over a 10-year interval suggest that causative allergens in ACD could change with time lapse. In the future, collaborative studies including a number of participating hospitals are needed for obtaining more reliable results. (Korean J Dermatol 2020;58(4):254∼259)
정종헌 ( Jong Heon Jeong ),이지영 ( Ji Young Lee ),이승호 ( Seung Ho Lee ),이애영 ( Ai-young Lee ),홍종수 ( Jong Soo Hong ) 대한피부과학회 2020 大韓皮膚科學會誌 Vol.58 No.10
Rhus is a common cause of allergic contact dermatitis (ACD), particularly in East Asia. Rhus can cause localized contact dermatitis following direct contact with the skin, and systemic contact dermatitis following its ingestion, causing pruritus, erythema, and occasionally blistering. Bullous pemphigoid (BP) is an acquired subepidermal autoimmune bullous disease that typically occurs in the elderly. Although BP usually occurs sporadically, some precipitating factors of BP have been suggested, such as other autoimmune diseases, drugs, and malignancies. We report a rare case of BP induced by ingestion of Rhus in a 54-year-old man who presented with itchy erythematous rash and blisters on the whole body, initially misdiagnosed as ACD, and treated with systemic steroids. (Korean J Dermatol 2020;58(10):691∼693)
한국에서 옴 감염의 역학 및 임상적 연구: 다기관 후향적 연구
박송연 ( Song Youn Park ),홍종수 ( Jong Soo Hong ),노주영 ( Joo Young Roh ),이준영 ( Jun Young Lee ),김도원 ( Do Won Kim ),유태진 ( Tae-Jin Yoon ),심우영 ( Woo Young Sim ),이규석 ( Kyu-Suk Lee ),계영철 ( Young Chul Kye ),이애영 ( 대한피부과학회 2013 대한피부과학회지 Vol.51 No.9
Background: Scabies is one of the common skin diseases observed in developing countries. The incidence of scabies has decreased dramatically since the late 1980s in Korea. However, recent outbreaks in nursing homes or hospitals have been raising public health concerns. Objective: We intended to evaluate the epidemiological and clinical aspects of patients diagnosed with scabies in Korea. In particular, we tried to investigate the changing trend of contact sources in our society. Methods: A multi-center cross sectional study was performed at 25 hospitals in Korea. We included 1,539 patients who were diagnosed with scabies. These patients showed scabies mites or eggs under microscopic examination, or clinical improvement after treatment. Their medical records with information of contact sources were reviewed. Results: Six hundred and ninety-three patients were males and 826 were females. Patients’ age from 70 to 79 was the most common followed by patients below 10 years of age. More patients were found in the fall and winter months. 66.7% of patients were thought to be infected at their homes which were situated next to nursing homes or hospitals (23.1%). Place of infection could not be verified in 39.3% of patients. 25.8% of patients were suggested to be infected through contact with medical staff or patients from hospitals or nursing homes. Conclusion: We confirmed that the contact sources of scabies are changing in our society; nursing homes and hospitals are emerging sources of infection. The majority of patients are old or very young who are vulnerable to many diseases. Therefore, dermatologists should pay attention to new contact sources and appropriate care of patients.