카드뮴 및 청국장 첨가식이가 흰쥐의 생육과 체내 카드뮴 분포에 미치는 영향

주현규,강경원,사동민 선문대학교·중소기업기술지원연구소 1998 선문공대 연구/기술 논문집 Vol.3 No.1

This study was performed to investigate the effect of Chungkuk Jang added-diets on reducing cadmium toxiclt in rats (Sprague-Dalvley, ♂, 125 58±4.04g) used as experimental groups. There are six experimental groups, a normal group(Tn), a cadmium treatment group(control group Tc), four cadmium and Chungkuk Jang (0.25%, 0 50%, 1 00%, and 1 50%; T_1 T_2, T_3, and T_4) treatment groups which received different dietary feeding for 8 weeks each The results are as follows. 1 The amount of food intake at Chungkuk Jang mixed group(T_1, -T_2) was 3 5% greater than at the Tc group For the group fed Chungkuk Jang the average of weight gain was 4.42g/day, which showed higher value(2.79%) than the Tc(4 30g/day) group. The food efficency rate of intake Chungkuk Jang group (5.02) was a little higher without significance than that of the Tn(4 91) and Tc(4 99) groups. 2. The amount of water intake was the highest in the Tn(32.44?/day) group and 30.14% greater than that of the Tc(21.66?/day) group. For the water intake (T_3) among Chungkuk Jang added-diet groups showed the highest value(22.78?/day) relatively Cadmium intake of each group was in the range of 1.94 to 2.27 ppm and the T_3 group showed the highest cadmium intake. For the growth rate the Tc group was 7.62% lower than Tn group but the Chungkuk jang fed group resulted in a reduced fashion-about 3% in the growth process against the Tn group 3 There was no significant weight gain or loss of the organ and bone of rats among the experimental groups but in the case of liver and kidney the T_3 (8.59%. 12 36%) was higher than the Tc group 4 Cadmium accumulation was high to low in order of liver > kidney > spleen > heart > lung > testicle > brain > femoral muscle > femur >(T_1, T_2, T_3, and T_4). tibia > blood. The 70% accumulation rate was showed in liver (33 2%), kidney (31.25) and spleen (6 1%). The contents of cadmium in tissue and body-hair in the Chungkuk Jang intake groups(T_1, T_2, T_3, and T_4) were lower than in the Tc group. The chungkuk Jang added-diet groups (T_3, and T_4) showed low levels of cadmium accumulation

간경변 환자에서 Oro-cecal Transit Time의 측정

원경준,이준,변유미,조민근,조주연,서정균,김영대,박찬국,김만우 朝鮮大學校 附設 醫學硏究所 2008 The Medical Journal of Chosun University Vol.33 No.2

Background: Neurotransmitter like substances in the gut have been proposed to contribute to the overall portal systemic encephalopathy (PSE). The source of the ammonia in patients with PSE is mainly the small bowel, as a result of the conversion of glutamine in the diet to glutamate and ammonia. PSE is highly responsive to changes in diet, to antibiotic therapy and to ingestion of nondigestible disaccharides such as lactulose. This study was performed to evaluate the relationship between PSE and oro-cecal transit time. In addition, performed to evaluate the effect of severity, cause, complications of liver cirrhosis on oro-cecal transit time. Methods: Between August 2006 and February 2007, 48 cirrhotic patients consecutively was enrolled in study their oro-cecal transit time after informed consent was obtained. A non-invasive hydrogen breath test was used to study oro-cecal transit time (OCTT). Result: The OCTT were delayed in cirrhotic patients with PSE compared without PSE (123.3 ± 42.7 min vs 170.0 ± 58.3 min, p<0.05). OCTT tended to prolongate further as the damage in the liver got worse, nevertheless the result was statistically meaningless (p<0.111). Neither presence of ascites or cause of PSE had any influence on gastrointestinal transit. Conclusions: Cirrhotic patients with PSE have more delayed OCTT than without PSE. Further research is needed to find out the relationship between OCTT and severity of liver cirrhosis.

일본의 Food Coordinator 교육현황

김운주,윤도경,송원희 충북대학교 교육 ·생활연구소 생활과학연구센터 2003 생활과학연구논총 Vol.7 No.1

Food coordinator is coordination what the food is many kind of subject and people are satisfied, with their mind that food space is offered by coordinator. Food coordinator base spirit is understanded the other party position and new creation for mind by mind harmony. It exist independent center of specialist for the food that they are lots of kind abundant experience and status table coordinator, food designer, product menu developer, restaurant producer and dietary adviser. It is related with many kind of specialist, food adviser, catering service, menu development, product development and food merchandising. This monograph was considered general food coordinator and Japan food coordinator of the present condition, development direction. Afterwards, food world is getting to develop for food coordinator to bright future. Therefore, food coordinator is the exact meaning by this monograph and it is an opportunity for concerned and understanded many people.

總輸膽管 結紮術후 Hepatic Glycogen 變化에 관한 形態學的 硏究

李亨周,李永浩,朴景蘭,金源式 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1

For the study on the changes of hepatic glycogen after common bile duct ligation, Sprague -Dawley rats (b.w. 250± 20gm, male) were used as experimental animal. In expermental group, at 3hrs, 6hrs, 9hrs, 12hrs, 24hrs, 48hrs, 72hrs, 96hrs, and 120hrs after ligation, the common bile duct at the point of about 1cm proximal portion from its duodenal opening, the liver specimens were collected under ether anesthesia. Simple laparotomy was performed in control rats. After fixation, the specimens were sectioned 5㎛ thickness and stained with Periodic Acid Schiff, and observed under light microscope. Also, transmission electron microscopic photos were obtained with H-7000(Hitachi Co.) TEM. The results were as followings: 1. PAS reactions were changed into negative 6hours after common bile duct ligation. 2. Glycogen depletion after common bile duct ligation was closely related with functional lobule, but not in simple laparotomized rats. 3. In the common bile duct ligated rats, PAS negativity continued in the zone I until 120hours after ligation.

청소년의 스마트폰 중독과 우울 및 불안과의 관계

김경은,김필송,민주연,박수경,신서인,이지은,정해인,조호정,최정원,최정인 이화여자대학교 간호과학대학 2013 이화간호학회지 Vol.- No.47

Purpose: The purpose of this study was to investigate the relationships between the degree of smart phone addiction among adolescents and their depression and anxiety levels. Method: In this study, 379 high school students were selected using the convenient sampling method. The instruments used for this study were smart phone addiction measure, the CES-D (Center for Epidemiological Studies-Depression Scale), and the STAI (State-Trait Anxiety Inventory). Data were analyzed using the SPSS 20.0 program with descriptive statistics, t-test, ANOVA with Scheffe test, and Pearson’s correlation coefficient. Result: The mean score for smart phone addiction was 40.45±17.27, depression was 36.56±9.58, state anxiety was 44.00±9.61, and trait anxiety was 45.70±9.75. There were significant differences between the degree of smart phone addiction and the following variables: gender (t=-4.953, p<.001), hours of smart phone use per day (F=12.259, p<.001), types of frequently used features (F=3.485, p=.008), and satisfaction level for smart phone (F=5.18, p<.001). There were statistically significant relationships (p<.001) among degree of smart phone addiction, depression level, and state and trait anxiety levels. Conclusion: The results of this study suggested that there was a significant relationship between smart phone addiction and mental health, specifically, depression and anxiety among adolescents. Further research is needed to develop nursing strategies to provide care for adolescents who frequently utilize smart phones.

바나듐이 도핑된 강유전체 Bi₄Ti₃O_12 박막(BTV)의 성장과 특성

정원태,최은경,김현주,강민진,김상수 昌原大學校 基礎科學硏究所 2001 基礎科學硏究所論文集 Vol.13 No.-

Bi3.99Ti2.97V0.03O12 (BTV) thin films with 3 mol% vanadium doping were prepared on Pt/Ti/SiO2/Si substrate by sol-gel method. X-ray diffraction analysis indicated that single-phase lapered perovskite were obtained and preferred orientation was not observed. Under the annealing temperature at 600℃, the surface morphology of the BTV thin films had fine-rounded particles and then changed plate-like at 650℃ and 700℃. The remanent polarization (2Pr) and coercive field (2Ec) of 700℃ annealed BTV thin film were 25 μC/cm2 and 116 kV/cm, respectively. In addition, BTV thin film showed little polarization fatigue during 109 switching cycles. These improved ferroelectric properties were attributed to the increased rattling space and reduced oxygen vacancies by substitution Ti4+ ion (68 pm) with smaller V5+ ion (59 pm). The dielectric constant and loss were measured 130 and 0.03 at 10 kHz, respectively.

교사들의 공통과학 실험 · 실습 선호도 조사 분석

정원우,이윤종,강용희,윤일희,이우붕,손종경,김중욱,강동진,권용주 慶北大學校 師範大學 科學敎育硏究所 1999 科學敎育硏究誌 Vol.23 No.-

The purpose of this study is to investigate the status of the experimental and practical education in high school general science. The present status and reasonable management of the experimental and practical education in high school general science were evaluated by the questionaires. To do this, 146 science teachers in Korea are administered questionaires. The frequency of the experimental and practical items in the seven kind of general science text books were investigated. The problems and the reasonable management for experimental and practical education were proposed in this paper.

靑色 사파이어의 熱處理와 分光學的 特性

나경주,김원사,김문영,배인국,장영남 충남대학교 기초과학연구소 1994 연구논문집 Vol.14 No.-

For the blue sapphires from Santung, China, the color change before and after has been investigated by UV-Visible spectrophotometry method. The blue sapphires from Shantung show four groups of absorption bands: the bands A (374, 386 and 450 ㎚) being attributed to single Fe^3+ ion, the band B (560, 579 and 704 ㎚) to Fe^2+/Ti^4+ pairs, the band C (∼800 ㎚) to Fe^2+/Fe^3+ pairs, and the D (528 ㎚) to Ti^3+ dd transitions. From those UV-VIS characteristics the origin of blue color of the sapphires is confirmed to be attributed by the factors such as Fe^2+/Fe^3+ and Ti^3+/Ti^4+. The absorption spectra of natural blue sapphires before and after heat treatment show distintive features, comparing with those of sapphires from other localities: the bands of 689 ㎚ and of Cr^3+ are not recorded on the spectra of sapphires from Shantung. The band (492 ㎚), which resulted from Ti^3+, is not shown and the intensity of the band 528 ㎚ decreases after the heat treatment. Decoloration of ink-blue sapphires are found to be successful by heat treatment with the control of annealing and atmosphere. During the diffusion process the excess components of impurities contained originally in the host crystal were expelled to the surface of crystals, enhancing the transparency of the crystals noticeably.

창의력 증진을 위한 과학사적 교수·학습 자료 개발

정원우,이우붕,문장수,이일형,김기정,김은주,손동일,방경곤 경북대학교 사범대학부속 중등교육연구소 2007 중등교육연구 Vol.55 No.1

한국 대도시 고령자의 체격, 체력 및 운동실태와 운동 프로그램개발에 관한 연구

김경지,강동원,장주호,전익기,윤우상,곽은창,박영진,유재충 경희대학교 사회체육연구소 1996 體育科學論叢 Vol.- No.9

The purpose of this study was to investigate the patterns of the health related variables, and physical characteristics and physical fitness of the elderly people in order to provide a exercise program. The data about the health related variables were collected through the personal interview, and the data about physical charateristics and physical fitness (height, weight, % body fat, blood pressure, pulse rate, grip stength, trunk flexion, side step test, 2 min, harvard step test) of 373 elderly people living Seoul and kyungkee area were collected. The conclusions of this study can be summarized as follow; 1. The test results about smoking, drinking, sleeping and self-evaluation of health revealed that the elderly people have self-confidence about their health. 2. Not many elderly people participate the proper exercise program even though they recognize the need of exercise. 3. The results showed that the elderly people do not pay much attention to the intensity of the exercise. 4. Muscle strength training for leg and the lower back and cardio-vascular endurance training was recommended to reduce the risk of varius problems caused by aging. 5. A exercise program was suggested for the elderly people.