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      • 골다공증의 위험인자 : 아산시 지역 주민을 대상으로

        김용배,장원기,황보영,김화성,안규동,이병국,이용진,이남수,이상건,이상범,이상우,이선정,이성수 순천향대학교 2006 Journal of Soonchunhyang Medical Science Vol.12 No.1

        Objective : As the average lifespan of human increases, osteoporosis and osteoporosis-related fractures have become major health care problems. Despite recent advances in medical treatment, few studies have assessed the recognition of osteoporosis in general adults. This study examined the recognition of osteoporosis and analyzed the relating factors. Method : A population-based sample of 1086 adults in Asan-city, Korea was investigated with questionnaires and height, weight, Information regarding the general characteristics(gender, age, economic state), lifestylef exercise, smoking, alcohol),medical history(progestin, GH, steroid, calcitonin, PTH), demographic parameter, obesity, stress, and family history was collected through an interview using a structural questionnaire. The level of obesity was measured by the body mass index(BMI). BMD(Bone mineral density) at the lumbar spine and femoral neck was measured by dual energy X-ray absorptiometry. Osteoporosis was considered to be T-score below -2.5. Results : The prevalence of osteoporosis increased progressively with age, decreased with BMI and predominant in women by the result of x^(2) -test, T-test. Age, weight, BMI were significantly correlated with osteoporosis by the result of Pearson correlation ana1ysis(P<0.05). And age, gender, BMI, family history of osteoporosis were proved to be significant risk factors of osteoporosis by the result of multiple logistic regression(P<0.05). Conclusion : These results suggest that age, gender, BMI might be the most important risk factors of osteoporosis. And the history taking about family history of osteoporosis is helpful for diagnosing osteoporosis.

      • SCIESCOPUSKCI등재

        남병철의 혼천의 연구 I

        이용삼,김상혁,남문현,LEE YONG-SAM,KIM SANG-HYUK,NAM MOON-HYON 한국천문학회 2001 Journal of The Korean Astronomical Society Vol.34 No.1

        In this paper we have reconstructed an armillary sphere based on the Method of an Armillary Sphere Making described in the Volume 1 of The Collection of Writings on the Scientific Instruments-Uigijipsol (儀器輯說, two volumes) edited in the 1850's by Nam Byong-Chul (南秉哲, 1817-1863) who was a famous Korean states-man-scientist. Nam achieved convenience and accuracy in the measurements of stellar positions in the manner of selective setting the equatorial, ecliptic and horizontal poles by adding a pole axis exchange ring called Jaigeukkwon (載極圈) between the Three Arrangers of Time and Four Displacements. We made use of 3-dimensional graphic software for modelling Nam's armillary sphere which consisted of five layers-eight rings. Results of simulation showed that the pole axis exchange ring functioned properly in setting the equatorial, ecliptic and horizontal coordinates simply by exchange of positions of specified holes on the ring. We ascertained that the invention of Jaigeukkwon solved inherent problems in the conventional Chinese armillary sphere in computation of real ecliptic coordinates. It was revealed that Nam Byong-Chul made great contributions in the East Asian history of armillary sphere making.

      • KCI등재
      • 도재소부용 저금함유금합금에서 열처리에 따른 Sn의 영향

        남상용,김치영,조현설 대구보건대학 1999 대구보건대학 論文集 Vol.19 No.-

        This study was carried out by oberserving to compositions of oxide on the surface of dental porcelain low gold alloy with various Indium addtions according to the degassing and analysing the change composition of additional elements Sn on diffusion behaviors of porcelain-metal surfaces. The specimens used were Au-Pd-Ag alloys by small Tin addition. These specimens were treated for 10min at 1000℃ in vacuum condition. To investigate the micrstructure of oxidized alloy surface, SEM and EDAX were used and EPMA were used to investigate the diffusion behaviors of porcelain-metal surfaces. X-ray diffraction were used to observe the morphological changes in the oxidation zone. Te results of this study were obtained as follows: 1) The Tin oxidation increased with increasing Sn content after hear treatment. 2) In concentration of Sn on metal-porcelain surface, Sn-6 was most significantry increased 3) In thickness of Sn on metal-porcelain surface, Sn-9 was most significantry increased 4) The oxidations of alloy surface were mainly SnO₂.

      • Ventriculosubgaleal shunt의 임상적 경험

        남궁원철,박상근,김태홍,신형식,황용순,김상진 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.2

        Object : Ventriculosubgaleal(VSG) shunt is considered to be useful and safe ventricluar diversion method for the patient for whom ventriculoperitoneal(VP) shunt cannot be carried out because of significant particulate debirs within the CSF, recent surgeries, or infections that were considered substantial enough to impair shunt function or to increase the risk of infection. To clarify the efficacy of VSG shunt for temporary ventricular decompression we analyzed our clinical trial cases. Patients and Methods : VSG shunt was carried out in 8 patient with acute hydrocephalus between February 2000 and June 2000. The causes of acute hydrocephalus were as follows: spontaneous intracerebral hemorrahage and intraventricular hemorrhage in four patients, spontaheous subarachnoid hemorrahge in three patients, tuberculous meningitis in one patient. With these 8 cases we compared pre-operative and post-operative clinical conditions and ventricular size in the brain CT scan. Results : Even though the ventricular size was not changed statistically there was significant clinical improvement between preoperative Glasgow coma scale(GCS)(7.25) and postoperative GCS(9.25). Six patients died as a result of causes unrelated to the VSG shunt. There were no VSG shunt infection. A permanent ventriculoperitoneal shunt surgery was needed in two patients. Conclusion : The VSG shunt is a simple and safe method of treatment for acute hydrocephalus instead of extraventricular drainage in the patients who cannot be underwent a permanent shunt immediately due to some reasons. Even though VSG shunt were free from infection, our preliminary clinical trials suggests that its efficacy seems to be doubtful. Further studies with lots of cases would be needed for its clinical application.

      • 卷柏의 혈액암세포주에서 抗癌作用에 대한 연구

        남항우,이성원,이병주,권칠용,문연자,안성훈,우원홍 한국전통의학연구소 2002 한국전통의학지 Vol.12 No.1

        The Sellaginella Tarmariscina is widely used in the traditional oriental herbal medicine for its anti-inflammatory, antioxidant effects. The effects of aqueous extracts of Sellaginella Tarmariscina on the viability and induction of apoptotic cell death were investigated in HL-60 cells. The cell viability after treating with extract of Sellaginella Tarmariscina was quantified by MTT assay. The results showed that could inhibit the proliferation of HL-60 cells and caused a 40% inhibition of HL-60 cells at concentrations of 400 ㎍/ml. The cancericidic effect of Sellaginella Tarmariscina was mediated by apoptosis. Thus, HL-60 cells exposed to Sellaginella Tarmariscina displayed the DNA fragmentation ladder and nucleus chromatin condensation characteristic for apoptosis. In conclusion, our results suggest that the extract of Sellaginella Tarmariscina may induce the apoptotic death in HL-60 cells.

      • 열처리후 치과용 합금과 도재사이의 화학적 결합의 영향

        남상용 대구보건대학 1992 대구보건대학 論文集 Vol.13 No.-

        Real bondig beteen metal and procelain is influenced by various bonding Mecanisms which also influence each other, and is caused by aseries of complicated thermochemical reaction. For this reason, clear determination of the drgree and distribution. 1. Fators influencing the Bonding strength Chemical bonding 52% (including primary bond) Mechanical bonding 22% Compression bonding 26% 2. Effects of the Base Metal Elements Added to Allots. The elements Sn. In, and Fe were added originally in accordance with the concept that they might strengthen the Alloy though a dispersion effect. 3. We heated the Degudent G.U Dental porcelain and analysis the surface elemental chang by Energy Dyspersive X-ray analysis and obtained the result that mainly the In element was concentrated to the alloy surface.

      • 鷄龍山의 水棲昆蟲 群集에 관한 硏究

        남상호,조영호,박영준,한용구,이정수 대전대학교 기초과학연구소 2002 自然科學 Vol.13 No.2

        천황봉에서 발원하여 산간 계류를 형성하고 흐르다가 유성천과 합류해 금강으로 유입되는 계룡산 동학사 계곡의 수선곤충 군집을 조사한 결과 총 5목 17과 37종이 출현하였다. 이중에서는 하루살이류가 6과 14종으로 가장 많이 출현하였으며, 현존량은 파리류가 전체 1,165개체중 569개체(48.84%)로 가장 높게 나타났다. 전체 우점종은 꼬마하루살이와 깔다구류로 0.15의 우점도지수를 기록하였다. 종다양도는 제 4지점인 남매탑 계류의 합류점이 0.93으로 가장 높았고, 제 1지점인 은선산장 위 부근이 0.09로 낮게 나타났다. 각 지점별 오수생물계열은 초강부수성-강부수성으로 매우 낮게 조사되었다. Aquatic insect communities were investigated in a mountain streams of YIt. Iiyeryong1 one of the central areas of Korea, from March to September, 2002. As a result, 37 species of aquatic insects in 17 families and in 6 orders appeared during the study period, the order Ephemeroptera and Diptera of which were the most appeared. Ephemeroptera was consisted of 14 species of 6 families, and Diptera was consisted of 589 individuals(48.84%j of total individual nun-her. Dominant species was Baetis ther-micus and the subdominant species was Chironmidae sp.. Dominant species index of Baetis thermicils and Chironmidae sp. was O.15 The highest species diversity index was observed of site 4 as 0.93 and the lowest species diversity index was observed of site 1 as 0.09. Dominance indices ranged between 0.15 and 1.00 while diversity indices between 0.09 and 0.93. In relation to species diversity indices, Mt. Iiyeryong streams were determined as Isosaprobity-Polysaprobity area. In general, it is inferred from the aquatic insect community that typical mountain streams of Korea are low.

      • 도재용 Ni-Cr합금표면의 주사전자현미경 관찰

        南相鏞 대구보건대학 1996 대구보건대학 論文集 Vol.16 No.-

        This study was carried out by observing to the composition of oxide on the surface of alloy according to the conditions of its heat treatment and analysing the change in composition on its surface in Ni-Cr alloy. The resurt of this study is summarized as fellows. It was shown that the higher the more the generated metal oxide while the higher the temperature of heat treatment and the metal oxide was manily composed of Ni and Cr oxides. In case of Rexillium, the Ni composition indicated increase and the Co composition indicated reduction while the higher the heat treatment. In case of Ceradium-V, the Cr composition indicated increase and Ni composition indicated reduction while the higher the heat treatment.

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