渗透刺戟이 子宮運動性에 미치는 影響

崔甲植 대한산부인과학회 1975 Obstetrics & Gynecology Science Vol.18 No.1

치성각화낭과 단방성 법랑모세포종의 감별에 관한 방사선학적 연구

최갑식 大韓口腔顎顔面 放射線學會 1995 Imaging Science in Dentistry Vol.25 No.1

The purpose of this study was to obtain some informations for the radiographic differential diagnosis between odontogenic keratocyst and unicystic ameloblastoma in the mandible. The author compared and analysed the clinico-radiographic features of 48 cases of odontogenic keratocyst and 32 cases of unicystic ameloblastoma. The obtained results were as follows: 1. Odontogenic keratocyst and unicystic ameloblastoma occurred the most frequently in the 2nd and 3rd decades, and both lesions occurred with slight predilection in males. The most frequent lesional site was molar area in odontogenic keratocyst(50.0%) and mandibular angle and ramus area in unicystic ameloblastoma(71.9%). 2. Cortical thinning and expansion were observed with simliar occurrences in odontogenic keratocyst(77.1%) and in unicystic ameloblastoma(72.9%). 3. Typical undulating lesional border was observed more frequently in odontogenic keratocyst(79.2%) than in unicystic ameloblastoma(46.9%). 4. Well-defined lesional outline occurred more frequently in odontogenic keratocyst(97.9%) than in unicystic ameloblastoma(53.1%). 5. Root resorption of adjacent teeth occurred more frequently in unicystic ameloblastoma(65.2%) than in odontogenic keratocyst(18.8%) respectively, but loss of lamina dura was frequently observed in odontogenic keratocyst(79.2%). And tooth displacement occurred more frequently in odontogenic keratocyst(50.0%) than in unicystic ameloblastoma(17.4%). 6. Displacement of mandibular canal occurred more frequently in odontogenic keratocyst(75.0%) than in unicystic ameloblastoma(61.5%). 7. Inhomogeneous lesional radiolucency occurred more frequently in unicystic ameloblastoma(53.1%) than in odontogenic keratocyst(39.6%).

1980年代 美國經濟政策의 理論的 背景과 運用

崔甲植 건국대학교 1990 學術誌 Vol.34 No.1

The economic challenge facing the Bush Administration is not merely challenging, but formidable. The statistics through the Reagan presidency has shown the near-record longest peace time expansion, the anxieties about recession and inflation, the mounting national debt, the relatively high level of interest rates, and the high cost of the dollar in international markets. The new administration's task is to keep the economy rolling for more years without either precipitating a serious recession or accelerating inflation. For the study on the Theoretical backing and Operation of the U.S. economic policies in 1980s, the following things are viewed as the below. 1.As for the background and enactment of the Reaganomics, the history of economic theories up to the 1970s was discussed first, The Keynesians, who had dominated macroeconomics since the 1930s, placed great emphasis on government's ability to "fine tune" the economy by demand management policies. However, economic thought underwent significant changes in the 1970s as the prevailing keynesian theories had difficulty accounting for emerging economic events. Monetarism led by Milton Friedman, the New classical (macro) economics with the Natural Rate Hypothesis and Rational Expectations Theory, and the development of public economics theory with public choice theory and fiscal conservative orthodox idea were briefly introduced here so as to understand Reaganomics. On the early 1980s, another idea against the Orthodox Keynesian demaind management position was developed. The emphasis changed from short-term cash floues to relative prices, from aggregate demand (or spending) to concern about the economy's potential to produce more output. Growing concerns about the productivity growth slowdown brought with them the name "Supply-side economics," on the basis of monetarism, fiscal orthodox, and supply-side ideas, the Reoganomics was proposed and performed through the Reagan presidency. 2.The views of Milton Friedman, who was favorable with the Reagan's economic policy at the begining, and the Keynesians were introduced to evaluate the performance of the Reaganomics, in terms of statistical data, the economic performance under Reagan had been quite empressive. However, quite a few critiques pointed out that many problems, especially the "twin deficits" problem-the federal budget deficit and the trade deficit, and the rapid acceleration of American indebtedness to foreigners-has emerged during and after the Reagan administration. 3.The economic condition, policy and performance under the Bush Administration were discussed. In search of Bush's economic policies, the idea of Michael Boskin who is the chairman of the council of economic advisers was viewed, and the cabinet member's affiliation to the economic school of thought was searched. 4.Far from containing fewer supply-siders than the Reagan Administration, the Bush Administration contains many more of them. Therefore, I would conclude that the Bush team continue to pursue the similar economic policies during his presidency as Reagan did.

관전압 변화에 따른 방사선사진의 흑화도와 대조도

최갑식 慶北大學校 齒科大學 1990 慶北齒大論文集 Vol.7 No.2

The purpose of this study to evaluate the influence on radiographic density and contrast of 7-steps aluminum stepwedge according to kilovoltage changes(65-85 kVp range). And the influence on radiographic interpretation of experimentally produced bony lesions under kVp related radiographic densities is also examined. The following results were obtained. 1. The radiographic density of the aluminum stepwedge is increased with the increase of kVp, and increasing tendency of radiographic density is decreased with the increase of aluminum steps. 2. The range of radiographic contrast reveals 0.09-0.32 at 65-85 kVp range, and difference of radiographic contrast score is decreased with the increase of aluminum steps. 3. There is no influence on radiographic interpretation of experimentally produced bony lesions under the radiographic density range of 0.75-1.49.

파노라마방사선사진상의 이공에 관한 연구

최갑식,배용철,김동윤,손정익 경북대학교 의학연구소 1999 경북대학교병원의학연구소논문집 Vol.3 No.1

The purpose of this study was to evaluate the position and shape of mental foramen in panoramic radiographs. For this study, panoramic radiographs were obtained from the 200 adults and evaluated the position and shape of mental foramen. According to various positional changes in panoramic radiographs of the patients, the author also obtained panoramic radiographs from the 100 adults and then evaluated the positional and shape changes of mental foramen. The following results were obtained: 1. Shapes of metal foramen were observed elliptical(43.3%), round or oval(42.5%), unidentified(7.5%) and diffuse (6.7%) type in descending order of frequency. 2. Horizontal position of mental foramen were most frequently observed at the 2nd premolar area(54.2%), and area between the 1st premolar and 2nd primolar(43.1%), area between the 2nd premolar and 1st molar(2.7%) in descending order of frequency. 3. Vertical position of mental foramen were most frequently observed at the inferior of apex(88.2%), and at apex (9.7%), overlap with apex(1.9%), superior of apex(0.2%) in descending order of frequency. 4. According to various positional changes in panoramic radiographs of the patients, shape changes of mental foramen were more obviously observed at the forward 10mm and chin down 10。 positioned panoramic radiographs. And changes of horizontal and vertical position were observed in similar to compared with normal positioned panoramic radiographs.

섬유성이형성증과 골화섬유종의 방사선학적 감별진단

최갑식 慶北大學校 齒科大學 1993 慶北齒大論文集 Vol.10 No.1

저자는 섬유성 골병소 중 임상 방사선학적 및 조직병리학적으로 확진된 골 형성기이후의 섬유성이형성증 49증례와 골화섬유종 14증례의 방사선학적 소견을 비교하여 다음의 결과를 얻었다. 1. 섬유성이형성증은 10대에서, 골화섬유종은 20대와 30대에서 호발되었으나, 두 질환 모두 여성에서 다소 호발되었다. 2. 초진시의 주소는 대부분 약골의 무통성 팽창이었으며, 섬유성이형성증은 상악(61.1%)에서 다소 많았으나 골화섬유종은 하악(92.9%)에서 대부분 발생되었으며, 병소의 대부분은 구치부에서 관찰되었다. 3. 병소의 크기는 섬유성이형성증에서 다소크게 나타났으며, 하악에서 병소의 형태는 섬유성이형성증에서는 방추형이었으나 골화섬유종은 구형 또는 타원형이었다. 4. 섬유성이형성증의 병소는 방사선불투과상(63%)이 다소 많았으나, 골화섬유종은 대부분 방사선투과상과 방사선불투과상의 혼합상(92.9%)으로 나타났으며, 병소 내부의 방사선불투과상의 형태는 섬유성이형성증에서 비교적 균일하게 나타났으나, 골화섬유종에서는 중심부에서부터 주변부로 확장되는 양상이었다. 5. 섬유성이형성증의 모든 병소에서 주변 정상골과의 경계를 구분할 수 없었으나, 골화섬유종의 병소에서는 비교적 명료한 경계가 관찰되었다. 6. 피질골의 팽융과 비박이 대부분의 병소에서 관찰되었으나 섬유성이형성증에 비해 골화섬유종의 병소에서 피질골의 팽융정도가 심했다. 7. 치조백선의 소실, 치아의 편위, 하악관의 전위는 두 질환 모두에서 관찰되었으나, 치근흡수는 섬유성이형성증의 병소에서는 관찰되지 않았고 골화섬유종의 병소에서만 관찰되었다. The author observed and compared the radiographic features of 49 cases of the fibrous dysplasia and 14 cases of the ossifying fibroma in the osteoblastic or mature stage radiologically and histopathologically. The obtained results were as follows: 1. Fibrous dysplasia occurred most frequently in the 2nd decade, but ossifying fibroma in the 3rd and 4th decades, and both lesions occurred with slight prediection in females. 2. In most cases, chief complaints were painless facial swelling. And 61.1% of fibrous dysplasia occurred in the maxilla, 92.9% of ossifying fibroma in the mandible, and most of these lesions occurred in the premolar-molar region. 3. In the mandibular lesions, ossifying fibroma was shown more oval and round shape, but fibrous dysplasia was shown fusiform shape. 4. Fibrous dysplasia was shown homogeneously distributed, complete radiopaque shadow at 63%, and ossifying fibroma was shown concentric, mixed appearance of radiolucent and radiopaque shadow at 92.9%. 5. Fibrous dysplasia was entirely shown poorly outlined and blended to normal surrounding bone, but ossifying fibroma was shown well-defined border. 6. Cortical thinning and expansion were observed in these lesions, but degree of cortical expansion was more severe in ossifying fibroma than fibrous dysplasia. 7. Loss of lamina dura, tooth displacement, and displacement of mandibular canal were observed in both lesions, but root resorption was observed in ossifying fibroma only.

農業技術進步에 關한 硏究 : 特히 米穀生産을 中心으로

崔甲植 건국대학교 1974 論文集 Vol.1 No.1

韓國 所得分配의 實態와 政策

崔甲植 건국대학교 부설 중원인문연구소 1987 論文集 Vol.6 No.-

Korean economy ranked recently the level of upper medium developed country with per capita national income of more than $2,000 due to the success of the last 25 years economic development plan. However, high level of economic growth deepened inequality of personal or size income distribution as a result of inflational economic policy. But the stabilizational economic policy has been succeeded since 1980 to maintain high economic growth keeping low price indexes and low rate of unemployment. Since Korean economic policies yields undesirable results such as inequality of regional or size income distribution and income gap between capitalists and laborers due to various types of government support and preferential treatment on the special industries, classes and regions, this study intends to analize the realities and policies of income distribution as follows. 1. Theoretical studies on the income distribution were carried out by examining the income distribution theory of A. Smith and D. Ricard, representatives of classical school and of post Keynesians in viewpoint of functional distribution theory and personal of size distribution theory. The former is mainly a wage theory among the income distribution for production factors, and the latter a theory that indicates inequality of income distribution by measuring factors, and the latter a theory that indicates inequality of income distribution by measuring degree of income distribution per household. But income distribution theory has not been dearly established yet, because it depends largely on the variation of human life and thought. 2. Realities of income distribution in Korea are not easy to analize in practice because of lacks of statistical data and moderate analytical method. This study investigated mainly the analized results of domestic and foreign scholars and published economic statistical data in Korea. Functional income distribution shows that labor wage is low and less than half of labor productivity, while personal or size income distribution is similar to those in developed countries showing equal distribution. But credibility of the above result is low because of th following reasons. ⅰ) inadequate selection of subject of investigation for analysis. ⅱ) restriction of supplement of economic statistical data and use of them. ⅲ) methodological difficulties in the measurement of income inequality. ⅳ) unfamiliar foreign scholar study results with Korean economic. 3. Government prime object has been an economic hrowth, and has almost no room to pay attention to income distribution policy. Concepts between growth and distribution or ability and equality have generally trade-off relation. Howeverm government has made continuous effort on the functional income distribution policy since 1980 to solve the problems of low labor wage and wage gaps between industries, school careers and occupations by ⅰ) increasing distribution rate of labor through reinforcement of joint labor-management conference system, and ⅱ) strengthening labor guide system over medium-small industries. Tax benefit and financial support are executed as a part of personal or size income distribution policy for the purposes of income redistribution and equalization of property formation for low income labors. Particulary, government aims at economically advanced country and promotion of national prosperity in 1987, and is emphasizing it's policy on the improvement of living standards, particulary residental environment of low income class by improving wage structure and minimum wage and social security systems.

파노라마 X선사진을 이용한 특발성 골경화증에 관한 연구

최갑식 大韓口腔顎顔面 放射線學會 1995 Imaging Science in Dentistry Vol.25 No.2

The purpose of this study was to evaluate the prevalence, the distribution, and the relation with adjacent roots of idiopathic osteosclerosis in the jaws by means of analysis of 7,837 persons' panoramic radiographs. The following results were obtained ; 1. The prevalence of idiopathic osteosclerosis in the jaws in panoramic radiographs was revealed to be 9.76% in total examined persons. There was a higher prevalence in males(10.10%) than in females(9.76%). 2. There was also a higher prevalence in the mandible(97.92%) than in the maxilla(2.08%). The most frequently involved area was the mandibular molar area(34.72%), followed by mandibular premolar area(33.37%). 3. According to the types of idiopathic osteosclerosis with relation to adjacent roots, separated type(51.59%) was the most frequent, followed by apical type(32.52%), interradicular type(7.95%), apical and interradicular type(7.95%) in descending order of frequency.

공적자금지원의 현황과 개선방안에 관한 연구

최갑식 건국대학교 사회정책연구소 2003 사회과학연구 Vol.16 No.-