아동의 손톱중 질소 함량과 영양상태에 관한 연구

권선옥,박선미,장순영,전혜숙,정원혜,최혜옥 효성여자대학교 가정대학 학도호국단 1984 家政大論集 Vol.3 No.-

We estimated fingernail nitrogen content from children in a city, a farm village, a mountain village and a fishing village. Therefore, the result is as follow. In summer, nail nitrogen content was estimated 130.79±15.39mg/g in a city, 123.86±24.93mg/g in a farm village, 96.16±17.04mg/g in fishing village, 91.96±6.76mg/g in a mountain village. In winter was estimated 137.43ㄷ69.06mg/g in a city, 131.70±8.49mg/g in a farm village, 124.75±16.34mg/g in a fishing village, 115.81±6.36mg/g in a mountain village. According to this analysis, the nail nitrogen content lowered by turns a city, a farm village, a fishing village, a mountain village. The nitrogen contents of nails obtained in winter were found to be higher than those obtained in summer.

대학생의 뇨pH와 정서성 및 식품기호도에 관한 연구

최운정,황혜선 서강정보대학 1989 論文集 Vol.8 No.-

This study attempted to investigate the relationships between the urinary pH, emotional state and food preference. The subjects were 55 college students living in Kwang- ju. In this study, the emotional state and food preference of the subjects were investigated through questionnaires. Also, the urinary pH of the subjects were obtained by examination. The results are summarized as follows; 1) The height and weight of the subjects were those of Korean standards for man and woman. Their uninary pH, Hb and Hct concentrations were in normal range. 2) The mean hedonic score for food preference in subjects was 2.8. The difference in food preference between male and female was not significant except for a soy bean item and protein food group that were more favored by male. The subjects favored grapes, tomatoes, cucumber, apple, strawberry in order. 3) The subjects were classified into three groups, a little acid group, neutral group and a little alkali group accoring to thein urinary pH. A little acid group answered significant high rate to the items of the emotional state, "hard to study" and "no self-confidence". 4) Foods that have significant difference between the urinary pH and food preference were sweet potatoes, bread and yoghurt but not consistent according to the urinary pH. 5) The food preference according to the emotional state showed significant difference in cereal group. "Not to talk with other" group showed low rate preference to cereal group. From the results above the relationship between the emotional stability and the urinary pH was found. On the other side, many cooking methods should be studied and nutrition oducation should be oriented to recommend an increased in take of fat & oil group, milk group and vegetable group.

대학생의 건강상태에 대한 자각증상과 뇨pH 및 식품기호도조사

최운정,황혜선 서강정보대학 1990 論文集 Vol.9 No.-

This survey attempted to investigate self-diagnosed symtoms on health status, urinary pH and food preference of college students. The subjects of this survey were 55 college students. The subjects answered self-diagnosed symtoms on health status and food preference through the questionnaire, Urinary pH was examined. The results were summerized as follows : 1. Height and weight of subjects belonged to those of Korean standard for men and women. 2. Female subjects significantly complained about hand & feet feeling cold in comparison with male subjects. Male subjects complained of tiring easily and having a headache frequently, female subjects complained of having a headache frequently, feeling cold and hand & feet feeling cold in order. 3. The subjects were classified into three groups, a little acid group, neutral group and a little alkali group by urinary pH. A little acid group complained more than other group about getting a rough tongue, feeling drowsy, can't sleeping well and occasional dizziness, but not significant. 4. Subjects lost their appetite showed lower preference in protein and cereal food group. In case that subjects can't sleeping well showed higher preference in fat & oil group and subjects feeling occasional dizzindss showed lower preference in milk group and subjects digesting poorly & having a pain in the chest showed significantly lower preference in fruit group respectively.

PCR과 SDS-PAGE를 이용한 젖산균의 분류

최동훈,이중림,민승기,박종환,김해영,조재선 慶熙大學校 1998 論文集 Vol.27 No.-

Strain type of lactic acid bacteria was analysed by PCR and SDS-PAGE. PCR allows the rapid and specific detection of lactic acid bacteria using primers based on 16S rRNA gene-sequences. The analysis of protein pattern on SDS-PAGE can be used to determine the differences among the same or similar species of lactic acid bacteria. Therefore, the complementary use of PCR and SDS-PAGE method is one of simple way to classify the lactic acid bacteria and to compare with genetic analysis.

일부 서울지역 여대생의 체질량지수에 따른 영양섭취 실태조사

최미경,최선혜 동아시아식생활학회 1998 동아시아식생활학회지 Vol.8 No.3

The purpose of this study was to evaluate the nutrient and food intake status in underweight female college students living in Seoul. 126 underweight(BMI <20) and 74 normal weight(20≤ BMI<25) students were asked for their daily food intake and eating habits by using 3-day food records and questionnaire. We analyzed the amounts of the nutrient intakes and food groups as the subjects. The mean of height and weight were 162.1㎝ and 49.0㎏ in underweight and 160.6㎝and 54.9㎏ in normal weight subjects. The mean energy, iron, and vitamin A intakes among the students were smaller than RDA for Koreans. The mean calcium(p<0.01), sodium(p<0.05), and vitamin B₂(p<0.05) intakes in underweight subjects were significantly higher than those in normal weight subjects. Total food intakes of underweight and normal weight students were 1235.8g and 1078.1g, respectively. The mean of the pulse group in the underweight was significantly higher than that in normal group(p<0.01). Frequently consumed food or dish items of the subjects were Kimchi, cooked rice, and milk. In the relation between BMI and dietary factors, the BMI was found to have a significant negative correlation with calcium intake(p<0.05), pulse intake(p<0.01) and eating habit score(p<0.01). Eating habit scores about quantity of food and lipid intake showed a significant difference between underweight and normal students.

램프변조를 이용한 FP간섭센서 신호처리

최선영,김도익,예윤해 경희대학교 레이저공학연구소 2001 레이저공학 Vol.12 No.-

We developed a high- speed signal processor for Fabry -Perot interferometric sensors using ramp modulation. The signal processor was implemented onto field programmable gate array(FPGA). This method has an advantage of simplifying the circuit of system as well as improving of the system performance. The signal processor was tested with FP interferometric temperature sensor with a cavity length of 1.52 cm. The random walk of the system was 1.1 □.

세탁의 탈수와 건조과정 중 면직물의 수분전달특성 및 미생물 분석

최해운,박명자,차옥선 服飾文化學會 2002 服飾文化硏究 Vol.10 No.5

The purpose of this research was to analyze the residual water retention and to determine the number and species of microorganisms from the wet cotton fabrics in dehydration and drying process during washing. The drying rates of terrycloth and interlock knit under the rainy seasons were measured according to the dehydration and hanging methods, layers of fabric and pre-treatment agents. Microorganisms were isolated from the dried terrycloth by pure culture, and were identified by Biolog system. The results are as follow: The initial water retentions of fabrics after dehydration decreased in the order of dripping>centrifuge>squeezing method, which affected the drying rate. The drying rates were faster by increasing surface area of fabrics. There was no significant difference in drying rate among the fabrics pre-treated with detergent, or fabric softener, or cationic surfactants such as Cetyltrimethylammonium bromide(CTAB) and Benzalkonium chloride(BC). Puedomonas aureginosa was found in the fabrics treated with a powder-type detergent. On the other side, there was no growth of microorganism in the fabrics treated with a liquid-type detergent (containing antibacterial agent), CTAB and BC.

전화번호안내원의 누적외상성 장애

정해관,최병순,김지용,유선희,임현술,김용민,어경윤,권용욱 大韓産業醫學會 1997 대한직업환경의학회지 Vol.9 No.1

To evaluate the prevalence of cumulative trauma disorders in relation to ergonomic evaluation of their work, 260 female directory assistance operators employed in three branch facilities of the nation-wide telecommunication company. Ergonomic evaluation of the work status was done by two industrial hygienists through inspection. Workers were surveyed with standardized self-administered questionnaire and examined by family physicians and an orthopaedician for cumulative trauma disorders. Laboratory examination of serum aspartate aminotransferase(AST), creatinine phosphokinase(CPK), aldolase and rheumatoid factor was done and X-ray of cervical spine and both shoulders was taken from all subjects and nerve conduction velocity test was done on 57 subjects with suspected nerve entrapment cases. Cumulative trauma disorders were categorized into 3 category according to work-relatedness of the disorders. On ergonomic evaluation of the working posture and work environment, improvement of work posture revealed inappropriate postures and devices. Mean age of the subjects were 39 years old and more than 80% graduated high school or above. Ninety-eight percent of the workers employed in the company for more than 15 years and 74.6% of the workers worked at the VDT job for more than 4 years. Mean daily work hours was 8.0 hours per day and mean break hours was 90.5 minutes per day with mean extra work hours of 10.7 hours per month. Mean daily calls were 1128.6 calls in maximum and 864-8 calls in minimum. On laboratory examination, 13.(5.0%) workers had abnormal AST, 53(20.4%) had abnormal CPK, and 1(0.4%) had abnormal aldolase level. On x-ray examination of cervical spine, 111(42.7%) had loss of or reversed normal cervical lordosis, 10(3.8%) had narrowing of intervertebral space. Nerve conduction velocity test was abnormal in 11(19.2%) among 57 workers. Among disorders categorized as work-related, 131(50.4%) were diagnosed to have fatigue myalgia of levator scapulae, 108(41.5%) had cervical strain or sprain, 47(18.1%) had fatigue arthralgia of phalangeal joints, and 47(18.1%) had probable carpal tunnel syndrome, in 10(3.8%) of those diagnosis was confirmed electrophysiologically. Age, seniority, work duration at present job, workload nor location of facilities were associated with the prevalence of symptoms nor specific diagnoses on simple statistical analysis and multiple logistic regression, which seems to be due to highly selected and homogeneous characteristics of the study subjects. Above results shows that cumulative trauma disorders are very prevalent among directory assistance operators and elaborate effort is needed to reduce the cumulative trauma disorders among the operators.

5-Fluorouracil과 그 유도체를 함유하는 Solid Lipid Nanoparticles 제조와 평가

서혜선,최명신,한규원,박소민,김길수 이화여자대학교 약학연구소 2005 藥學硏究論文集 Vol.- No.16

Solid lipid nanoparticles(SLNs) are particulate systems for parenteral drug administration and have good biocompatibility and stability. SLNs were prepared with lauric acid, as the lipid core. Tween 20 and tween 80 were used as surfactant. 5-fluorouracil and 1-benzoyl-5-fluorouracil were used as model drugs. Drug-loaded SLNs were prepared by the hot homogenization technique in order to evaluate the physical stability, entrapment efficiency of drugs as well as release profile. The particle size of SLNs was 40~600 nm. By increasing speed, the mean particle size of SLfs was decreased. And entrapment efficiency in the case of using 1-Benzoyl-5-fluorouracil was higher than using 5-Fluorouracil. The higher surfactant concentration, the faster release rate at the range of 1.5~2.5%.

N-Oxyldiethylenebenzothiazole-2-sulfenamide의-S-N= 결합에 대한 전기화학적 환원

金海珍,鄭根鎬,崔圭源,金日光,林善英 원광대학교기초자연과학연구소 1992 基礎科學硏究誌 Vol.11 No.3

N-Oxyldiethylenebenzothiazole-2-sulfenamide(ODBS ; 가황촉진제)의 전기화학적 환원을 직류와 시차펄스 폴라로그래피 순환 전압전류법, 조절전위 전기량법으로 연구하였다. ODBS의 전극환원과정은 단일 환원파(-1.86 volts vs. Ag/0.1M AgNO₃ in AN)에서 비가역으로 3전자가 이동하는 E-C-E-C 반응메카니즘으로 진행되었다. 조절전위 전기분해 결과 sulfenamide(-S-N=) 결합이 끊어지고 mercaptobenzothiazole(MBT)과 benzothiazole disulfide(MBT dimer) 그리고 유리된 sulfur 등이 생성물로 얻어졌다. pH 변화에 따른 폴라로그램의 해석과 생성물 분석의 결과를 바탕으로하여 전기화학적 반응 메카니즘을 제안하였다. The electrochemical reduction of N-oxyldiethylenebenzothiazole-2-sulfenamide(ODBS; vulcanization accelerator) was investigated by direct current polarography, differential pulse polarography, cyclic voltammetry and controlled potential coulometry. The irreversible electrode reduction of ODBS proceeded E-C-E-C reaction mechanism by three electrons transfer with irreversible one wave(-1.86 volts vs. Ag/0.1M AgNO₃ in AN). As the results of controlled potential electrolysis, mercaptobenzothiazole(MBT), benzothiazole disulfide(MBT dimer) and extricated sulfur were products which followed by cleavage of the sulfenamide(-S-N=) bond. Upon the basis of products analysis and polarogram interpretation with pH variable, electrochemical reaction mechanism was suggested.