영아자(Phyteuma japonicum Miq.)의 성분 조성

정미자,신정혜,이수정,홍성국,강호중,성낙주 한국식품영양학회 1998 韓國食品營養學會誌 Vol.11 No.4

산채식물인 영아자(Horned Rampion ; Phyteuma japonicum Miq.)의 영양학적인 가치를 평가코져 야생 및 평지재배 시료를 잎과 줄기로 구분하여 일반성분, 비타민 C, 유리당, 무기물, 핵산관련물질, 구성 아미노산 및 유리아미노산을 분석하였다. 야생과 재배 영아자의 회분은 1.2∼2.7%의 범위였고, 조지방과 조단백질은 재배시료가 조섬유는 야생시료에서 더 높은 함량으로 정량되었고, 전당은 두 시료간에 대차를 보이지 않았다. 비타민 C는 줄기보다는 잎에서 재배시료보다는 야생시료에서 더 높게 정량되었다. 유리당은 야생 및 재배시료 모두 glucose, frucose 및 sucrose가 잎보다 줄기에서 높게 정량되었다. 무기물은 총 9종이 분석되었는데 이중 칼슘의 함량이 가장 높아 재배시료의 경우 잎은 34374.0㎎/㎏, 즐기는 9584.1㎎/㎏였고, 그 다음으로 칼륨, 마그네슘의 순으로 많았으며, 야생시료도 비슷한 경향을 보였다. 핵산 관련물질은 CMP, UMP, IMP, AMP 및 hypoxanthine이 동정되었는데 잎과 줄기 모두 야생시료에서는 hypoxanthine이, 재배시료에서는 AMP가 월등히 높게 정량되었다. 구성아미노산은 총 17종으로 야생시료에서는 glutamic acid, 재배시료는 잎의 경우 aspartic acid, 줄기의 경우 glutamic acid의 함량이 가장 많았다. 유리아미노산은 총 29종이 동정되었고 야생시료의 잎에서는 glutamic acid, 줄기에서는 γ-aminoisobutyric acid, 재배시료의 줄기에서는 asparagine이 가장 높은 함량으로 정량되었다. This research is to establish the basic data of the nutritive value and improve our diet. In the part of th leaf and stem of the wild cultivated horned rampion(Phyteuma japonicum Mig), the components such as chemical composition, vitamin C, free sugar, mineral, nucleotide and its related compounds, composition and free amino acid were analyzed one after another. Content of the crude lipids and proteins was determined much higher in its wildness than in its cultivated horned rampion ; while, that of carbohydrates was higher in the former than in the latter. The content of vitamin C was retained higher in the leaf than in the stem horned rampion. And the content of calcium among the detected minerals was outstanding in all of the samples collected, and potassium and magnesium was the next ones in its order. The main components of free sugars in both the wild and cultivated horned rampion were glucose and fructose, and their content was higher in the stem than in the leaf. Nucleotide and its related compounds were identified with 5 kinds of nuciotides such as CMP, UMP, IMP, AMP and hypoxanthine(Hx), and the content of Hx and AMP was the highest in the wild and cultivated samples, respcetively. In the composition amino acid of the wild horned rampion, glutamic acid, aspartic acid and phenylalanine was outstandingly abundant; while, such amino acid as methionine and proline was small and besides cysteine couldn't be detected in the stem. Total amounts of composition amino acid in the leaf was 2118.0 and 1120.1㎎% in the wild and cultivated sample, respectively. In the free amino acid of horned rampion, the total amount ranged from 8.5 to 50.1㎎%, which were lower level than that of composition amino acid. But the number of free amino acid was 29 kinds, which was bigger in its number than of composition amino acid detected 17 kinds.

한국인 직무 스트레스 측정도구의 개발 및 표준화

장세진,고상백,강동묵,김성아,강명근,이철갑,정진주,조정진,손미아,채창호,김정원,김정일,김형수,노상철,박재범,우종민,김수영,김정연,하미나,박정선,이경용,김형렬,공정옥,김인아,김정수,박준호,현숙정,손동국 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4

Background and Purposes: Over the past three decades, numerous studies performed in Korea have reported that job stress is a determinant risk factor for chronic diseases and work disability. Every society has its own culture and occupational climate particular to their organizations, and hence experiences different occupational stress. An occupational stress measurement tool therefore needs to be developed to estimate it objectively. The purpose of this study is to develop and standardize the Korean Occupational Stress Scale (KOSS) which is considered to be unique and specific occupational stressors in Korean employees. Subjects and Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002-2004). A total of 12,631 employees from a nationwide sample proportional to the Korean Standard Industrial Classification and the Korean Standard Occupational Classification were administered. The KOSS was developed for 2 years (2002-2004). In the first year, we collected 255 items from the most popular job stress measurement tools such as JCQ, ERI, NIOSH and OSI, and 44 items derived from the a qualitative study (depth interview). Forty-three items of KOSS, in the second year, were retained for use in the final version of the KOSS by using Delphi and factor analysis. Items were scored using conventional 1-2-3-4 Likert scores for the response categories. Results: We developed eight subscales by using factor analysis and validation process: physical environment (3 items), job demand (8 items), insufficient job control (5 items), interpersonal conflict (4 items), job insecurity (6 items), organizational system (7 items), lack of reward (6 items), and occupational climate (4 items). Together they explained 50.0% of total variance. Internal consistency alpha scores were ranged from 0.51 to 0.82. Twenty-four items of the short form of the KOSS (KOSS-SF) were also developed to estimate job stress in the work setting. Because the levels of the subscales of occupational stress were gender dependent, gender-specific standard norms for both the 43-item full version and the 24-item short form using a quartile for the subscales of KOSS were presented. Conclusion: The results of this study suggest that KOSS might be an appropriate measurement scale to estimate occupational stress of Korean employees. Further and more detailed study needs to be conducted to improve the validity of this scale.

적혈구 유무에 따른 벤젠, 스티렌, 트리클로로에틸렌에 의한 림프구 중 자매염색분체 교환 빈도

성재혁,김형아,신민정,최미정,이세훈 가톨릭대학교 산업의학센터 2001 韓國의 産業醫學 Vol.40 No.4

This study was performed to investigate the possible role of oxyhemoglobin in the metabolic activation of benzene, styrene and TCE by observing the difference of the SCE frequency between isolated lymphocyte and whole blood lymphocyte cultures exposed to these chemicals. Isolated lymphocyte and fresh heparinized peripheral whole blood samples from a healthy donor(male, smoker) were cultured in the phytohaemagglutinin stimulated culture media for 72 hours. The cells were treated with 100, 300, 1000, 3000 μM benzene, 250, 500, 100, 2000 μM styrene or TCE respectively. Slides were stained with Giemsa's solution for SCE. SCE was analyzed for each subject from coded slides by one researcher. The results were as follows : 1.The frequency of SCE increased dose-dependently with concentration of benzene in isolated lymphocyte and whole blood lymphocyte cultures, however there were no significance. There was no significant difference of SCE frequency between isolated lymphocyte and whole blood lymphocyte cultures. 2.The frequency of SCE in whole blood exposed to sytrene significantly increased in dose-dependant relationship, but not in isolated lymphocyte. The difference of SCE frequency between isolated lymphocyte and whole blood lymphocyte of 2000μM styrene exposure was marginally significant(P=0.0540). 3.In TCE, the frequency of SCE did not increase at any concentration used in this study of isolated lymphocyte and whole blood lymphocyte. Above results suggested that oxyhemoglobin in erythrocytes play an important role in the metabolic activation of styrene but not in benzene or TCE. Key Words : Benzene, Styrene, Trichloroethylene, Sister chromatid exchange, Metabolic activation, Oxyhemoglobin

저체중 또는 과체중 청소년에서 캠프 프로그램을 이용한 영양 교육효과에 관한 연구

성미경,승정자,류화춘,박재년,박동연,최미경,조경옥,최선혜,이윤신,김유경,이은주 대한지역사회영양학회 2003 대한지역사회영양학회지 Vol.8 No.4

This study was performed to evaluate the effectiveness of a nutrition education program developed for nutritionally imbalanced adolescents. A summer nutrition camp was held for 23 overweight and 16 underweight subjects. Its effectiveness with regard to was evaluated at the end of the camp and 6 months later. Nutrition knowledge, nutritional attitude, food behavior, nutrient intake, exercise habit and ideal body figures desired by the subjects. The results showed significantly higher nutrition knowledge scores at the end of the camp as compared to those obtained prior to the camp program, and these scores were maintained for at least six months. Nutrition attitude scores also improved after the education program, and these improved scores also lasted for 6 months. However, the food behavior scores measured 6 months after the education program were not significantly different from those obtained prior to the camp. Also, the exercise habit, the ideal body figures and the body figures desired by the subjects remained unchanged. When nutrient intakes of subjects were assessed before the program and 6 months later, the mean daily vitamin C intake was significantly increased after the education program. Also, the intake of iron from plant food sources increased in the overweight subjects, while less iron from animal source were consumed by the underweight subjects. Both groups tended to consume more vegetables and fruits 6 months after the education program which may have contribute to the higher vitamin C and plant-based iron intakes. These results indicate that a 4-day nutrition education camp program sustained changes in nutrition knowledge and nutrition attitude for 6 months. The increased intake of vegetables and fruits was also achieved through this education program. However, changes in dietary behavior in adolescents may require repeated education.

급성 간염 후에 발생된 재생불량빈혈 1례

이대성,이정현,박재선,김미향 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3

Aplastic anemia following acute hepatitis with or without acute hepatic failure is an uncommon and known to have a poor prognosis. We experienced a case of aplastic anemia following acute hepatic failure in a 13 year-old boy. He had been admitted because of jaundice and lethargy for 2 weeks and clinical findings of acute fulminant hepatitis. Serum studies for antibodies and antigens related to hepatitis A, B, C viruses and cytomegalovirus, Ebstein-Barr virus, and, parvovirus B19 were negative. He had been recovered and discharged. He was readmitted because of lethargy and stuporous mentality 5 months later. Laboratory finding showed pancytopenia in peripheral blood smear and hypocellularity of all hematopoietic elements in bone marrow biopsy. Patient had been treated by s teroid and oxymetholone for a month before he died of sepsis

제초제(propanil. butachlor) 저항성 잡초 선발 방법에 관한 연구

정성엽,김영미,박재현,이재현,김학윤,이인중,신동현,김길웅 경북대학교 농업과학기술연구소 1999 慶北大農學誌 Vol.17 No.-

This study was conducted to develop a simple selection method for herbicide-resistance weeds. Two methods, designated "seedling method" and "stem node method" were employed for screening of barnyardgrass against propanil and butachlor. In the seedling method, shoot and root growth of barnyardgrass were significantly inhibited at quarter of the recommended herbicide rate, while in the stem node method, the similar inhibition was obtained at half of the recommended rate. Thus, it was concluded that the seedling method is more simple and quick method to evaluate response of barnyardgrass to propanil and butachlor compared to stem node method.

부산지역 매출액 상위기업의 위상과 변천사

정성문 · 정지미 · 이규용 · 김건우 · 김권호 · 박수정 · 양태완 · 지준영 · 이우평 신라대학교 부산학연구센터 2020 부산연구 Vol.18 No.2

본 연구는 부산지역의 주요기업 변화를 살펴보기 위해 매출액 기준 전국 상위 1,000대 기업에 속하는 부산기업을 조사하여 비교분석을 실시하였다. 분석결과 2005년에 전국 1,000대 기업 중 46개 기업이 부산에 소재하였는데, 2019년에는 12 개가 줄어든 34개 기업만이 전국 1,000대 기업에 포함되었다. 또한, 전국 상위 1,000대 기업의 매출액 기준으로 부산지역 기업의 매출액 비중은 2005년 1.6%에서 2019년 1.4%로 줄어든 것으 로 나타났다. 이는 수도권 집중현상이 점차 강화되고 있기 때문이다. 한편, 부산지역 매출액 기준 상위 10대 기업은 많은 변화가 있었는데, 2005년 상위 10대 기업 중 2019년에도 상위 10대 기 업에 포함된 기업은 ㈜한진중공업, 르노삼성자동차(주), ㈜부산은행, ㈜서원유통 등 4개뿐인 것 으로 나타났다. 통계적 인과 관계는 확정할 수 없으나 지역 대기업의 쇠퇴 및 유출과 지역의 쇠퇴가 동시에 이루어지고 있어 지역 경제의 침체와 대기업의 쇠퇴 및 유출이 상당한 관계가 있음을 유추해 볼 수 있다. 특히 2011년 이후 지역 주력 제조업 기업들이 1000대 기업 진입에 실패하였다는 점을 주목해 볼 필요가 있다. 지역 제조업 대기업의 이탈 또는 쇠퇴는 지역 생산성 하락에 영향을 미 쳤을 가능성이 높고, 낮아진 지역 산업 생산성이 지역 경제성장률 둔화에도 영향을 미칠 가능성 이 있다. 따라서 지역의 경제활력 저하 문제를 제고하기 위해서는 지역 산업구조 개편 문제와 생 산성 향상 방안에 대한 고민이 필요하다.

일부 외래 환자의 병원선택 요인과 간호 서비스 이미지에 관한 연구

성미혜,최수정,강미옥,조승희 인제대학교 2008 仁濟論叢 Vol.23 No.1

Purpose : The purpose of this study was to identify the factor to choice hospital and image of nursing services in outpatients. Method : The subjects were 142 outpatients of the three general hospitals with more than 450 beds. The data was collected using structured questionnaires from May 14, to June 1, 2005. The data was analyzed by the SPSS(ver 1O.0)program, and it included descriptive statistics, and cross tabulation. Result : The rank of construct factors hospital choice which were thought important by subjects was the first 'convenience facilities', the second 'thrust to physician', the third 'kindness of nurse and staff'. The rank of construct factors nursing service image which were thought important by subjects was the first 'kindness', the second 'neat feature', the third 'accuracy', the fourth 'responsibility'. As for the analysis that the nursing service image affected the choice of hospital, 'It affected the choice the hospital' took 87.3%, and it was higher than the 22.7% as 'It did not affected the choice the hospital'. Conclusion : These results suggested that to recognize the merits and demerits of hospitals and to develop their original service area are very important. therefore, these findings give useful information for constructing an effective marketing strategies in hospitals.

정밀주조 다이캐스팅을 이용한 자동차 레귤레이터 하우징 성형해석에 관한 연구

성백섭,김미애,차용훈,김정대,김덕중,이연신 한국공작기계학회 2006 한국공작기계학회 추계학술대회논문집 Vol.2006 No.-

The casting defects that are caused by molten metal were cold shut formation, entrapment of air, gas, and inclusion. But the control of casting defects has been based on the experience of the foundry engineers. In this thesis, the computer simulation analyzed the flow of molten metal. The quantitative analyses which proposed the effective mold design was executed Flow patterns of 0.1-0.16m/s molten metal in 15mm thin plate casting were investigated in order to optimize die-casting process. As increasing ingate velocity in thin plate casting, cold shot was decreased. The parameters of runner shape that affected on the optimized conditions that was calculated with simple equation were investigated. These die casting process control techniques of automobile regulator housing parts have achieved good agreement with the experimental data of tensile strength, hardness test, and material structure photographies satisfactory results.

TiO₂를 이용한 아세틸렌 가스의 광촉매 산화반응

정대일,김성엽,이도훈,이용균,박유미,최순규,김동현 동아대학교 환경문제연구소 2000 硏究報告 Vol.23 No.1

Photocatalyzed degradation of acetylene gas was carried out over precoated titanium dioxide(anatase) illuminated UV light in a flow reactor. photocatalytic oxidation of acetylene gas indicated high conversion rates (78.0%) to CO₂gas. And photocatalytic oxidation of gas according to a fold, twofold, and threefold of titanium dioxide(anatase) respectively gave high conversion rates. The longer reaction time was, the higher conversion rate to CO₂ gas showed.