산후에 발병한 특발성 부갑상선 기능저하증 I 예

김정인,김상용,신병철,김경남,서영욱,이범주,김진화,배학연 朝鮮大學校 附設 醫學硏究所 2002 The Medical Journal of Chosun University Vol.27 No.2

Hypoparathyroidism is usually the result of an inadvertent surgical removal of all the parathyroid glands, In some instances, not all the tissues are removed, but the remainder undergoes vascular supply compromise secondary to the fibrotic changes in the neck after surgery, Previously, the surgery for hyperthyroidism was the most frequent cause of acquired hypoparathyroidism. Idiopathic hypoparathyroidism is a relatively rare disease that is characterized by hypocalcemia and hyperphosphatemia due to a parathyroid hormone deficiency of an unknown cause, It usually develops at a young age, and shows various clinical symptoms and signs accompanied with hypocalcemia. In addition, it is rarely associated with polyglandular autoimmune syndrome during the follow-up. Hypocalcemia and idiopathic hypoparathyroidism associated with labor and lactation are rarely reported condition previously. We here describe a case of a woman in whom the symptomatic severe hypocalcemia appeared after her delivery. We reviewed all the previously reported cases and suggest a possible physiological explanation for the association between pregnancy, lactation, and the appearance of symptomatic hypocalcemia.

건강식품 바이탈 및 비지놀의 抗疲勞 效果에 관한 연구

정경수,김혜경,김희수,김계양,곽영숙,김학범 충남대학교 약학대학 의약품개발연구소 1993 藥學論文集 Vol.9 No.-

As a result of extensive research efforts on the oriental medicinal herbs, some of their interesting biological activities have been elucidated. In the present study, antifatigue effects of two natural food supplements consisting of oriental herbs, Vital and Vigilor, were investigated using the ICR mice. The mice were fed with antibiotic-free normal mouse feed containing Vital or Vigilor for 14,28, or 31 days and then subjected to forced swim tests. In a test carried out in melting-ice water, Vital and Vigilor significantly increased the exhaustion times of the 28 day-fed mice by 26.9 % (p < 0.01) and 16.2% (p < 0.05), respectively. However, in the other test performed at 15±0.5℃ using 31 day-fed mice, Vigilor failed to increase the exhaustion time significantly (at p< 0.05), while Vital showed antifatigue effect by increasing the swimming time by 29.9% (p<0.01). Neither of Vital nor Vigilor exerted antifatigue effects in a swim test carried out on day 14 after the initiation of feeding. These results suggest that Vital and Vigilor exhert antifatigue effets when administered for a sufficient period of time by enhancing the health of the host animals.

심혈관계 질환으로 관상질환 집중치료실에 입원한 환자들의 혜후 측정을 위한 APACHEⅢ점수 체계의 임상적 유용성

이공섭,이창선,최현주,홍종서,강지향,김도형,이민영,오인균,김병엽,김상억,김학찬,한승혜,이재용,지영우,안경주 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.8

성인형 당뇨병 환자에서 피부생검을 이용한 표피하 모세혈관 기저막 두께의 변화에 관한 연구

김원학,오금탁,김만우,장경식,채종구,조건국 朝鮮大學校 附設 醫學硏究所 1987 The Medical Journal of Chosun University Vol.12 No.1

Thickening and proliferation of capillary basement membrane is a generalized phenomenon in diabetes mellitus and has been described in many organs including heart, kidney, pancreas, retina etc. While such changes are specific, it is difficult to obtain specimens from those organs. We took the specimens from the medial surface of the thing of 33 diabetics and 4 healthy persons as controls by means of punch biopsy. The measurement carried out by normogram and electron microscopic technique. HbA_(1c) values were also measured simultaneously. 1. The HbA_(1c) values are higher in diabetics than in control group (p<0.01). 2. The subepidermal capillary basement membrane thickness of the diabetics : 30% of the 5 th decade population, 53.9% of the 6 rh decade population and 83.3% of the 7th decade population showed more rhan 3,000 A. Whereas all the controls showed below 3,000 A. 3. The subepidermal capillary basement membrane thickness did nor increase significantly with the duration of the disease. 4. In cases of high subepidermal capillary basement membrane thickness, HbA_(1c) showed significant increase. (p<0.01).

종격동 종괴를 의심케한 우대동맥궁 1례

김만우,백학연,정춘해,장경식,홍순표,조건국,김종진 朝鮮大學校 附設 醫學硏究所 1987 The Medical Journal of Chosun University Vol.12 No.1

Developmental anomalies of the aortic arch, commonly known as vascular rings, are relatively rare congenital vascular anomalies which can compress the trachea and esophagus. One routine chest film of a patient who was checked and hepatoma-diagnosed in Internal Medicine, Chosun University Hospital left the room for doubt of mediastinal mass. But no subjective symptoms for the mass was told by the patient. This is to report our experience of a patient having right side aortic arch with aberrant left subclavian artery, as proved by diagnosis, but none of congenital heart disease. This right side aortic arch with aberrant left subclavian artery is the most frequent type among right aortic arch, the anomaly of which is usually detected from the incidental suspicion for mediastinal mass at routine chest film; because no symptoms are accompanied therewith.

로디움 첨가량에 따른 Au-Ag 합금의 미세조직과 기계적 성질에 관한 연구

김경남,김광만,노학,박정종 大韓齒科器材學會 2000 대한치과재료학회지 Vol.27 No.3

There are solid solution strengthening, precipitation strengthening, dispersion strengthening, grain size strengthening and strain hardening in strengthening mechanism of alloys. Grain size refiners in dental casting alloys were generally high melting point platinum group metals- Ir(iridium), Ru(ruthenium), Rh(rhodium) etc. But they are shown greater segregation in casting ingot because they have relatively large atomic mass and little additional amount than other alloying elements. In this study, 75wt% Au-25wt% Ag was selected basic composition, and then 0.05wt%, 0.1wt% and 0.3wt% Rh was added to a basic composition as a grain refiner. Analytic specimen were made with diameter 5 mm and length 40mm, and tensile test specimens were prepared with conical shoulders. To evaluate Rh effect, changes of microstructure and X-ray diffraction patterns were observed. Tensile strength and micro-Vickers hardness were also measured. In according to Rh content, percentage of dendrite was decreased and disappeared at 0.3 wt% Rh addition. From the result of x-ray diffraction, second phase was not observed. Each value of yield strength was 46.9±6.1MPa(0.00 wt% Rh), 57.5±4.2MPa(0.05 wt% Rh), 59.8±5.3 MPa(0.1 wt% Rh)and 66.2±6.5 MPa(0.3wt% Rh). From these result, it was shown that yield strength, tensile strength and micro-Vickers hardness were increased with increasing Rh content. In conclusion, addition of Rh to 75wt% Au-25wt% Ag alloy improved microstructure and mechanical properties.

첨가된 질량이 있는 단순지지된 샌드위치 패널에 대한 간편한 진동해석의 적용

김성환,이정호,정경일,이봉학 江原大學校 産業技術硏究所 1996 産業技術硏究 Vol.16 No.-

Many of the bridge systems, including the girders and cross-beams,and concrete decks behave as the special othotropic plates. A method of calculating the natural frequency corresponding to the first mode fo vibration of beam and tower structures with irregular cross-sections was developed and reported by D.H.Kim in 1974. Since 1989, The author has extended this method to Vibration analysis of two dimensional problems includign composite laminates, and has reported at several conferenes. Frequently, the bridge floor panels are supported by girders and cross beams. Such panels as well as some of the building floor panels can be assumed as simple supported special orthotropic plates. In this paper, the result of application of simple method fo vibration analysis developed by D.H.Kim, to the simply supported sandwich panels woth point Mass/Masses is presented.

용인 자연농원 장미원의 이용후 평가에 관한 연구

김유일,노경아,이성학 성균관대학교 생명과학자원연구소 1995 生命資源科學硏究 Vol.2 No.1

The POE (Post Occupancy Evaluation) was carried out to provide basic behavioral knowledge for its planning and management of the Rose garden at Yong-In Farmland. Through its users a total of 1545 questionnaire were completed. They were designed by four sets of variables, such as behavoir pattern, motivation for visting, post-use evaluation, and users demographic variables. The findings are as follows: Firstly, descriptive statistics were employed to analyze behavoir pattems and users' demographic varialbes. As a result, 86% of visitors lived in Kyoung-Ki Do and Seoul : most of the vistiors is in their twenties and thirties : most of visitors were accompanied by their families, relatives and lovers : 66% of vistiors came by cars to Yong-In Farmland : 47% of visitors stayed for 1-2 hours in average. Secondly, factor analysis was used in order to group satisfaction factors. Five factors are : 'manegement of the garden', 'rose appearance', 'design and aesthetics', 'lighting and sound', and 'theme display'. Thirdly, regression analysis was used to examine the sources of satisfaction. The results of regression analysis shows that 42% of total variances was explained by ten variables. The most effective variable is 'the aspect of rose condition and appearance'. The overall evaluation for the new rose garden was 'satisfied' though the level of the 'satisfied' varies according to their ages. Twenties and thirties prefer that image of fantastic European style which was frequently showed on T.V or movies. Forties and fifties like more abudant scenery of roses of an Europenan style garden but unsatisfied with shortage of roses.

강섬유 보강 콘크리트의 인장강성 및 피로파괴특성

이봉학,윤경구,홍창우,김동호 강원대학교 부설 석재복합신소재 제품연구센터 2000 석재연 논문집 Vol.5 No.-

콘크리트의 취성적 성질을 개선하고 부재의 인성을 증가시킨 강섬유보강 콘크리트는 건설분야에 활용할 가치가 크다. 그러나 설계규준이나 해석방법이 정비되지 못한 현 실정에서 거동 특성을 규명하고 이에 유효하고 타당한 해석모델을 제시하는 것이 요구된다. 본 논문에서는 강섬유보강 콘크리트의 강도특성실험, 직접인장실험 및 피로실험을 수행하여 이에 대한 역학적 특성을 고찰하고 거동특성을 규명함으로서 설계와 해석의 기초 자료로 활용하고자 하였다. This study is conducted on the test to find tension stiffening, flexural fatigue characteristics and mechanical properties of steel fiber reinforced concrete. Experimental investigation is examined accord to hooked type fiber contents(0, 0.4 , 0.7, 1.0%), fiber aspect ratio(60.83). The principal results obtain through this study are as follows; steel fiber reinforced concrete is increased completely tensile & flex strength properties compared with normal concrete. The tension stiffening and fatigue life tend considerably increase with fiber contents, fiber aspect ratio.

검도의 변천과 발달과정에 대한 고찰

박장근,김경태,김영학 명지대학교 예체능연구소 1998 藝體能論集 Vol.9 No.-

This study aims at ascertaining what kind of historical vicissitude Korean Swordsmanship, Kumdo has undergone in Korea and how it has grown into a sport match as it is now. In order to achieve these goals, the utility of a sword and the social changes which have made influence on it are focused as a basic viewpoint and perspective. Four problems are thought to be solved; the first is what's the cultural and political meaning of development of a sword, the second is what's the historical vicissitude which the traditional Korean Swordsmanship has undergone, the third is when and how Japanese - created swordsmanship as a sport match was introduced into Korea and how it changed the traditional Korean Swordsmanship, and the fourth is what' s the value and characteristic of Korean Swordsmanship. First, it is necessary to look into the origin and history of the sword. The sword was developed as a living tool at first, but it was changed into a weapon, In the Stone Age, the sword was mainly used as a hunting tool In the Bronze Age and Iron Age, the sword took amain part of weaponry. The bronze dagger was the typical sword type of the Bronze Age. The bronze dagger was originally imported into the Korean Peninsula from the northern tribes in Central Asia and Siberia, but later there appeared a unique type named 'sehyung donggem' In the Bronze Age, a bone dagger was also used as a weapon In the Iron Age, there appeared many kinds of iron swords, which are divided into two categories: the long one and the short. Next, the historical vicissitude of the traditional Korean Swordsmanship has to be examined. The earliest form of Swordsmanship was an aspect of war and conquest in the Bronze Age and Iron Age. In the period of the three Kingdoms(Koguryo, Pagjae, Shille), an advanced form of Swordsmanship started to be developed by soldiers, especially in Koguryo, And 'Bongukgumbup (Swordsmanship of the State)' developed in Shilla is the beginning of the tralitional Korean Swordsmanship. In the early middle age(Korea: ancient Korea), the special forces of Korea named 'Sambyolcho' played an important role in the development of a more advancde form of traditional Korean Swordsmanship. In the late middle age(Chosun), many kinds of books on Swordsmanship were published and the Swordsmanship was adopted as one of the subjects of martial arts in the State Examination. Third, it is important to find out how our modern Swordmanship was intrduced in Korea. Our modern Swordmanship was intoduced as a kind of military arts dy Japanese in the period of their rule over Korea. Japanese prohibited the traditional Korean Swordsmanship and forced their sport-like Swordmanship instead Japanese-created Swordsmanship match(they call it kendo) was originally designed to cultivate mind and body. In the match they use a bamboo sword instead of a genuine one. Since our liberation from Japanese rule, Korean Swordsmanship, which has basically the form of Japanese-created Swordsmanship, has been populstized and has become a daily sport. But it has lost much of its traditional essence as martial arts, for example 'Sangmu' spirit. Fourth and in conclusion, it can be said that Korean Swordsmanship has succeeded in popularization but it needs to restore the secrets and essence of the traditional Korean Swordsmanship and develop its new varaion, which must be not only genetalized and systematic but also theoretically back-upped and functionally enhanccd. To make better Korean Swardsmanship, it is essential to develop new skills and instruments in accordance with our bodily and emotional.