• 제목/요약/키워드: Modification period

검색결과 338건 처리시간 0.02초

Improvement of Decarboxylating Agar Medium for Screening Biogenic Amine-Producting Bacteria in Kimchi

  • Mah, Jae-Hyung;Shin, Soon-Young;Lee, Heung-Shick;Cho, Hong-Yon;Hwang, Han-Joon
    • Journal of Microbiology and Biotechnology
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    • 제11권3호
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    • pp.491-496
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    • 2001
  • A modification of decarboxylating agar medium as described by niven was performed to improve the detection method of biogenic amine-producing bacteria and to eliminate the false-positive. A total of 120 bacterial strains isolated from kimchi were used to evaluate different dicarboxylating agar media and for screening biogenic amines. Potential false-positives ranged from approximately 66 to 79% of the strains tested in the already well-known media. In our improved medium, none of the 120 strains showed the potential false-positives. There was a good agreement (81.7%-87.5%) between the results obtained by the improved medium and by HPLC analysis. Consequently, this medium was greatly improved in screening biogenic amine-producing bacteria and discarding false-positives. Of the 120 kimchi isolates, 14.2, 18.3, 37.5, and 0.8% were found by HPLC to be the producers of histamine, tyramine, putrescine (as a form of spermine), and cadaverine, respectively. The proportion of biogenic amine producer during kimchi fermentation increased to a maximum at an immature period and decreased thereafter.

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여성 과민성 방광의 한방 임상에 관한 고찰 (A Study on Korean Medical Clinical Management of Female Overactive Bladder)

  • 최민선;김동일
    • 대한한방부인과학회지
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    • 제27권2호
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    • pp.83-102
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    • 2014
  • Objectives: This study aimed to review Korean medical clinical management of female overactive bladder (OAB). Methods: We reviewed domestic and foreign papers related to Korean Medicine Treatment for OAB and literatures on Korean Medicine added clinical views of authors. Results: OAB is usually diagnosed to Deficiency pattern (Kidney qi deficiency-cold, Spleen-Lung qi deficiency et al.). The primary treatment goals of OAB is improvement of urinary symptom. But a comprehensive treatment approach including improvement of accompanied symptoms such as depression, insomnia, sexual dysfunction and improvement of quality of life is needed. Warming and tonifying herbal medicine, electro-acupuncture and moxibustion using acupoints specially acting bladder function in lower abdomen and lumbar-sacral area and behavioral therapies such as lifestyle modification, bladder training are usually primary treatments. Treatment period is recommended about 3~6 months to recover and stabilize bladder function. Conclusions: OAB is a clinical area that Korean Medicine tend to be more effective. but additional research about Korean Medical Clinical Management of OAB is needed.

좌심저형성 증후군 경험 1 (Hypoplastic Left Heart Syndrome - Experience in one Patient -)

  • 장봉현
    • Journal of Chest Surgery
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    • 제20권2호
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    • pp.404-410
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    • 1987
  • An 18-day-old male neonate with hypoplastic left heart syndrome underwent surgical intervention by modification of the Norwood procedure on September 23, 1986. Hypoplastic left heart syndrome is a serious congenital cardiac anomaly that has a fatal outlook if left untreated. Included in this anomaly are [1] aortic valve atresia, and hypoplasia of the ascending aorta and aortic arch, [1] mitral valve atresia or hypoplasia, and [3] diminutive or absent left ventricle. Patent ductus arteriosus is essential for any survival, and there is usually a patent foramen ovale. Coarctation of the aorta is frequently associated with the lesion.z With a limited period of cardiopulmonary bypass, deep hypothermia, and circulatory arrest, the ductus arteriosus was excised. The main pulmonary artery was divided immediately below its branches, and the distal stump of the divided pulmonary artery was closed with a pericardial patch. The aortic arch was incised, and a 1 5mm tubular Dacron prosthesis was inserted between the main pulmonary artery and the aortic arch. A 4mm shunt of polytetrafluoroethylene graft was established between the new ascending aorta and the right pulmonary artery to provide controlled pulmonary blood flow. Following rewarming, the heart started to beat regularly, but the patient could not be weaned from cardiopulmonary bypass. At autopsy, the patient was found to have hypoplasia of the aortic tract complex with mitral atresia and aortic atresia. A secundum atrial septal defect was noted. Right atrial and ventricular hypertrophy was present, and the left ventricle was entirely absent. Although unsuccessful in this case report, continuing experience with hypoplastic left heart syndrome will lead to an improvement in result.

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상악골 전절제술 및 안와내용물 적출술 후 횡복직근 유리피판을 이용한 3차원적 재건에 대한 치험례 (Clinical Experience of Three-dimensional Reconstruction Using Free TRAM Flap after Total Maxillectomy with Orbital Exenteration)

  • 이승렬;우종설
    • 대한두개안면성형외과학회지
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    • 제10권1호
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    • pp.40-43
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    • 2009
  • Purpose: Extensive midface defect following total maxillectomy with orbital exenteration and cheek skin resection should be three dimensionally reconstructed with a large flap that have a sufficient volume of tissue and multiple skin islands. We describe our transverse rectus abdominis myocutaneous(TRAM) free flap with three skin islands which was successfully used in this situation. Methods: A 58-year-old man was performed enbloc total maxillectomy including orbital contents and wide cheek skin because of invasive maxillary squamous cell carcinoma. He was immediately reconstructed with TRAM flap that was designed not vertical but transverse fashion for providing sufficient skin area. Also, deepithelialization procedure making for multiple skin islands was done in flap insetting period when appropriate modification according to the intraoperative situation was possible. Dead space was completely obliterated by bulky muscular tissue, and three skin islands were used for lining of lateral nasal wall, palatal surface, and cheek skin restoration. Results: Postoperative course was satisfying. Maintaining of proper ipsilateral nasal airway, loss of rhinolalia and oronasal regurgitation of food particles, and restoration of cheek contour were successfully obtained. Conclusion: We report clinical experience of threedimensional reconstruction using free TRAM flap after total maxillectomy with orbital exenteration.

일본의 생활개선사업 현황과 21세기 전망 (Current Status and Perspectives for the 21st Century of Rural Living Improvement Program in Japan)

  • 이금옥
    • 농촌지도와개발
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    • 제11권1호
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    • pp.37-52
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    • 2004
  • The rural living improvement in Japan operates in considerations of socio-eoonomic circumstances of rural community as in Korea. After 1945 the program emphasized the improvement of living conditions such as poverty alienation improvement of house and toilet nutrition after war, From 1955, health programs including better cooking and nutrition, house modification and improved living conditions corresponding to the goal of the developed country were carried out. In 1965. the goal of the rural home economics was focused on the harmonized production and living, improvement of the levels of rural living, health and building rural community. From 1975, the goals of the program were to organize the farming in the better ways and improvement of rural women's role. In 1985, making agreeable living conditions was emphasized under the goal of vital rural society. From the period of Heysey(1989${\sim}$), for better living of rural people the government is emphasizing the programs including farm labor management, utilization of farm products, farm management and rural environments. Recognizing the important influencing resources of agents in extension services, on the job and education was implemented step by step from basic to planning to upgrade competencies. The government is trying to construct better with infrastructures, encouraging direct selling the value-added processed food from local farm products with rural people's real name and other countryside resources. Major programs in the 21st centuries are building better rural society with men and women together and considering elders as well as new farmers.

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식이 내 비타민 D 강화가 성장기 흰쥐의 골밀도에 미치는 영향 (Effects of Vitamin D Supplementation on Bone Mineral Density in Growing Rats)

  • 최미자;강유정
    • 동아시아식생활학회지
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    • 제16권3호
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    • pp.292-298
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    • 2006
  • Modification of the diet during childhood and adolescence may be an effective strategy for maximizing the peak bone mass. Many supplementation studies have suggested a positive effect of the increased vitamin D intake on the bone mineral status in the elderly. However to date all studies have been conducted on old men and postmenopausal women. The aim of this study was to examine the effects of vitamin D supplementation on the bone mineral density and bone mineral content in growing rats. Twenty Sprague-Dawley female rats were divided into two groups; Control, and vitamin D supplementation. The bone mineral density(BMD) and bone mineral content(BMC) were measured using PIXImus in the spine and femur. Vitamin D supplementation did not affect the level of weight gain, mean food intake and food efficiency ratio. In addition, vitamin D supplementation had no added effect on the spine and femur BMD, and BMC. There were no significant differences in the spine BMD/weight and BMC/weight between the groups, but the spine BMD/weight and BMC/weight was 11 % higher in the vitamin D supplementation group. The femur BMD/weight and femur BMC/weight were significantly higher in the vitamin D supplementation group 9 weeks after the experiment. These results provide evidence of the beneficial effects of vitamin D supplementation on the BMD during the growth period.

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다낭성 난소 소견을 동반한 비만여성 경지(經遲) 치험 1례 (A Case Study on Obese Patient with Oligomenorrhea and Polycystic Ovary)

  • 김동환
    • 한방비만학회지
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    • 제8권1호
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    • pp.101-108
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    • 2008
  • 다낭성 난소 소견을 동반한 비만 여성 환자의 경지(經遲) 증상을 한약 처방과 침, 이침(耳針), 전기지방분해침,식이조절, 운동요법 등의 생활습관교정 등의 한방 비만 치료와 한약 처방, 침, 좌훈요법 등을 이용한 한방 조경(調經) 치료를 시행하여 유효한 결과를 얻었기에 보고하는 바이다.

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컨버터가 내장된 교류발전기 병렬운전중의 헌팅 억제에 관한 연구 (A Study on the Controlling Method of Hunting Inducing Point during Parallel Running of alternator Equipped with converter)

  • 노창주
    • Journal of Advanced Marine Engineering and Technology
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    • 제23권3호
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    • pp.346-351
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    • 1999
  • This paper is a research for removing the hunting which came about during the parallel running of the alternators which four-pole six-phase have the converter with twelve diodes to rectify all the waves. Druing the parallel running the hunting came about under the period of 0.2-0.3{sec} not when it's load was the resistance but the capacity at the rpm band 1575[rpm] 1690[rpm] This hunting in our judgement was not come about from the general hunting causes which have been already known to but the special example. And so we checked that the hunting came about or not as per the changes of the rpm exciting current load current and converter and converter output voltage and the following facts were revealed. -The hunting occured during the constant voltage charging where r. p. m band is from 1575[rpm] to 1690[rpm] - The hunting did not came about during the constant power charging in which there was the large difference between the converter output voltage and the battery voltage. -The hunting did not came about in the low rpm band. We could see from the above facts that the existence of the hunting inducing point at the con-stant voltage charging band was the direct cause of the hunting. After trying every possible means to remove the hunting inducing point we could know that the modification of the synchronous generator is suitable for he purpos in view of the small engine room.

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Effect of Thyroid Hormone on the Gene Expression of Myostatin in Rat Skeletal Muscle

  • Ma, Yi;Chen, Xiaoqiang;Li, Qing;An, Xiaorong;Chen, Yongfu
    • Asian-Australasian Journal of Animal Sciences
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    • 제22권2호
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    • pp.275-281
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    • 2009
  • Modification of thyroid hormone levels has a profound effect on skeletal muscle differentiation, predominantly through direct regulation involving thyroid hormone receptors. Nevertheless, little is known about the regulation of myostatin gene expression in skeletal muscle due to altered concentrations of thyroid hormone. Thus, the goal of our study was to find out whether altered thyroid states could change the gene expression of myostatin, the most powerful inhibitor of skeletal muscle development. A hyperthyroid state was induced in rats by daily injections of L-thyroxine 20 mg/100 g body weight for 14 days, while a hypothyroid state was induced in another group of rats by administering methimazole (0.04%) in drinking water for 14 days. After a period of 14 days of L-thyroxine treatment we observed a significant increase of myostatin expression both in mRNA and protein level. However, decreased expression of myostatin mRNA and protein were observed in hypothyroid rats. Furthermore, our studies demonstrated that the upregulation of myostatin gene expression might be responsible for the loss of body weight induced by altered thyroid hormone levels. We concluded that myostatin played a role in a metabolic process in muscle that was regulated by thyroid hormone.

항공기 엔진 정비 일정 수립을 위한 동적 계획 모델 개발 (Developing a dynamic programming model for aircraft-engine maintenance scheduling)

  • 주성종;신상헌
    • 경영과학
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    • 제13권3호
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    • pp.163-172
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    • 1996
  • According to flying hours, aircraft engines require regular overhaul for preventive maintenance. Because of hostile defense environment of Republic of Korea, the aircraft of republic of Korea Air Force(ROKAF) have been operated at the maximum level of availability and have similar overhaul schedule in several months. The concentration of overhaul schedule in a short period demands additional spare engines far exceeding the spare engines for corrective maintenance. If ROKAF decides to purchase extra engines for the preventive maintenance, the extra engines will be used only for the preventive maintenance and will be excess inventory for the most of aircraft life ccle. Also, the procurement of extra engines is significant investment for ROKAF. To help ROKAF schedule the preventive maintenance without significant spending, this study develops a dynamic programming model that is solvable using an integer programming algorithm. The model provides the number of engines that should be overhauled for a month for multiple periods under given constraints. ROKAF actually used this model to solve a T-59 engine overhaul problem and saved about three billion won at one time. ROKAF plans to use this model continuously for T-59 and other weapon systems. Thus, saving for long term will be significant to ROKAF. Finally, with minor modification, this model can be applied to deciding the minimum number of spare engines for preventive maintenance.

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