• 제목/요약/키워드: widening

검색결과 627건 처리시간 0.026초

방사선 분할조사가 타액선 도관세포에 미치는 영향에 관한 전자현미경적 연구 (ELECTRON MICROSCOPIC STUDY OF THE SPILT IRRADIATION EFFECTS ON THE RAT PAROTID DUCTAL CELLS)

  • 김성수;이상래
    • 치과방사선
    • /
    • 제18권1호
    • /
    • pp.177-187
    • /
    • 1988
  • This study was designed to investigate the effects of split irradiation on the salivary ductal cells, especially on the intercalated cells of the rat parotid glands. For this study, 24 Sprague-Dawley strain rats were irradiated on the head and neck region with two equal split doses of 9Gy for a 4 hours interval by Co-60 teletherapy unit, Picker's model 4M 60. The conditions of irradiation were that field size, dose rate, SSD and depth were 12×5㎝, 222 cGy/min, 50㎝ and 1㎝, respectively. The experimental animals were sacrificed 1. 2, 3, 6, 12, hours and 1, 3, 7, days after the irradiation and the changes of the irradiated intercalated cells of the parotid glands were examined under light and electron microscope. The results were as follows: 1. By the split irradiation, the degenerative changes of intercalated cells of the parotid glands appeared at 3 hours after irradiation and the most severe cellular degeneration observed at 6 hours after irradiation. The repair processes began from 12 hours after irradiation and have matured progressively. 2. Under electron microscope, loss of nuclear membrane, microvilli and secretory granules, derrangement of chromosomes, degeneration of cytoplasm, atrophy or reduction of intracytoplasmic organelles were observed in the intercalated ductal cells after split irradiation. 3. Under light microscope, derrangement of ductal cells, widening of cytoplasms and nuclei, hyperchromatism and proliferation of ductal cells were observed in intercalated ducts after split irradiation.

  • PDF

상악골에 발생된 연골형성현 측피질골육종 (Juxtacortical Osteogenic Sarcoma of Chondroblastic Type on the Maxilla)

  • 최선영;최은숙;고광준
    • 치과방사선
    • /
    • 제28권2호
    • /
    • pp.539-563
    • /
    • 1998
  • 39-year-old female had been treated for the exophytic mass on buccal aspect of the left, maxillary posterior area 2 years and 8 months ago. Tentative diagnosis was obtained as fibrous dysplasia on clinical and radiographic examinations and histopathologic findings revealed as osteochondroma after bone trimming at that time. She revisited for the treatment of recurred lesions. We reviewed this case with clinical. radiologic and histopathologic standpoints retrospectively, and came to a conclusion that the tumor primarily occurred was juxtacortical osteogenic sarcoma and recurred due to inadequate treatment and then expanded over intramedullary. This case shows that the diagnosis of osteosarcoma should take account of the patient history, clinical. radiographic and histopathologic findings and it requires attentive follow up check. Retrospectively reviewed results were as follows ; At first visit, oral examination revealed a bony hard swelling on the buccal aspect of the left maxillary posterior area. Radiographically, a dense radiopaque mass was noted on the site. The lesion showed hot uptake of /sup 99m/Tc-MDP. Histopathologic diagnosis was done as osteochondroma, but it was considered as osteogenic sarcoma when compared with the recurrent lesion. When she revisited for the treatment of multiple bony swelling on the left maxilla, radiograms showed typical features of malignancy such as widening of periodontal ligament space and sunray appearace, and coincided with benign characters as follows; relatively well circumscribed lesion and expansion and displacement of the adjacent structures. Finally, histopathologic findings of the lesion was well differentiated chondroblastic osteogenic sarcoma.

  • PDF

중년여성의 체형 결점 보완을 위한 니트웨어의 디자인 연구 (A Study on Knit-Wear Design for the Complement of Middle-Aged Women's Figure)

  • 범서희;이인성
    • 복식
    • /
    • 제56권8호
    • /
    • pp.15-34
    • /
    • 2006
  • Knit wear was industrialized, diversified, specialized and was made into high-class and it is including knitted cloth and small product for fashion as well as cardigan, sweater, and jacket etc. unlike past recognition only with underwear and inner wear. To consider elasticity to be the best strength of knit wear, middle-aged women that form change is serious are wearing knit wear as clothes for going out, and this may be regarded as clothes action to be conscious of form than vogue. Thus, in this study, this researcher tried to suggest solution scheme through the development of design of knit wear to supplement the form defect of middle-aged women. This researcher tried to develop the design of knit wear to supplement the form defect of middle-aged women, after examining the theoretical background of knit wear, the bodily and mental feature of middle-aged women. Internal and external knit wear brand that middle-aged women prefer as the scheme for solving the problematic form of middle-aged women with knit wear. As the result first, to see the present situation of inland production enterprise of knit wear, almost all the brand companies are concentrating energies on widening age class. Second, middle-aged women become far off from the form which is regarded ideal form in modern society. Third, result that this researcher examined the brand of knit wear of middle-aged women is as follows : MORADO, Cartknit, Escalier. And, in foreign knit wear brand, ST John, Missoni, ESCADA. Fourth, as the result that this researcher did work manufacture for the supplement of form defect of middle-aged women, it has practical and active side, and off-time has high-class and elegant refined beauty.

Electron Microscopy and MR Imaging Findings in Embolic Effects

  • Park Byung-Rae;Koo Bong-Oh
    • 대한의생명과학회지
    • /
    • 제10권4호
    • /
    • pp.367-373
    • /
    • 2004
  • Evaluated the hyperacute embolic effects of triolein and oleic acid in cat brains by using MR image and electron microscopy. In fat embolism, free fatty acid is more toxic than neutral fat in terms of tissue damage. T2-Weighted imaging, diffusion-weighted imaging, and contrast-enhanced T1-weighted imaging were performed in cat brains after the injection of triolein (group 1, n=8) or oleic acid (group 2, n=10) into the internal carotid artery. MR image were quantitatively assessed by comparing the lesions with their counterparts on T2-weighted images, apparent diffusion coefficient (ADC) maps, and contrast-enhanced T1-weighted images. Electron microscopic findings in group 1 were compared with those in group 2. Qualitatively, MR images revealed two types of lesions. Type 1 lesions were hyperintense on diffusion-weighted images and hypointense of ADC maps. Type 2 lesions were isointense or mildly hyperintense on diffusion-weighted images and isointense on ADC maps. Quantitatively, the signal intensity rations of type 1 lesions in group 2 specimens were significantly higher on T2-weighted images (P=.013)/(P=.027) and lower on ADC maps compared with those of group 1. Electron microscopy of type 1 lesions in both groups revealed more prominent widening of the perivascular space and swelling of the neural cells in groups 1. MR and electron microscopic data on cerebral fat embolism induced by either triolein or oleic acid revealed characteristics suggestive of both vasogenic and cytotoxic edema in the hyperacute stage. Tissue damage appeared more severe in the oleic acid group than in the triolein group.

  • PDF

전통 꽃문양을 활용한 여성 생활한복용 직물디자인 개발 (The Development of Woman's Daily Hanbok Textile Design Appling Korea Traditional Flower Pattern)

  • 홍정화;김혜경
    • 한국의류산업학회지
    • /
    • 제13권6호
    • /
    • pp.848-855
    • /
    • 2011
  • The purpose of this study is to develop design for daily hanbok with Jacquard textile design developed by using the traditional patterns that suit the needs and lifestyles of the middle and old aged group. This study will also develop Jacquard textile design that has elaborate and luxurious patterns and abundant expression of colors using the traditional patterns that suit the needs and lifestyles of the middle and old aged group. Developing daily hanbok design for woman's casual and formal occasion will contribute to fashion business significantly by popularization of daily hanbok as one of the important fashion genre. The "Texpro Design CAD V8.21" program was used for the textile design. A total of 2 designs were developed as the Jacquard textile design with traditional patterns using flower motifs. One type of fabric was produced for each of the textile design with a color selected from "Pantone Color Chips". And finally, four woman's daily hanbok design for either casual or and formal style were developed and these daily hanboks were consisted of one set of jacket and trouser, durumagi, one set of jacket and skirt and one set of vest and trouser. And the actual garments were constructed and the design procedure and the photos of these works were presented. This study showed the possibility of producing highly sensible daily hanbok that suits the fashion trend of middle aged women and the widening of consumer range and the creation of new market by developing Jacquard textile design.

지암바티스타 비코의 언어관과 역사관 (Giambattista Vico: His View on Language and History)

  • 문경환
    • 인문언어
    • /
    • 제6권
    • /
    • pp.51-75
    • /
    • 2004
  • Is there a pattern in history? How and why does social change occur? Are we to distinguish between the methods to be employed in the study of man and the study of nature? How does linguistic, or 'philological', knowledge contribute to unearthing historical facts? These are the queries that Vico grappled with throughout his life. Vico, however, was an outsider to the intellectual atmosphere of his own day, dismissed as obscure, speculative, and unsound. Only after his death did he begin to inspire enthusiasm among diverse readers, and as long as we remain concerned with the queries mentioned above, Vico's reflections will come alive with contemporary relevance. Actually he has been regarded as the founder--unrecognized by his contemporaries--of the philosophy of history and as a thinker whose ideas anticipated such later intellectual movements as historicism, pragmatism, existentialism, and structuralism. There are many among modern minds who find Vico fascinating for his view of myth as concrete thought and of an age of myth as a necessary age in the intellectual evolution of the human race. James Joyce, for one, was deeply impressed by Vico's view on myth, on metaphor, on Homer, on language, on psychology, and much else besides. 'My imagination grows when I read Vico,' he once confessed, 'as it doesn't when I read Freud or Jung.' Some philosophers, critics, psychologists, social scientists and even geographers would describe themselves as 'Vichians', sharing the view that Vico was a poet and a lawyer, a platonist and a baconian rolled into one. His refusal to be confined within any one discipline, his imaginative effort to understand different cultures, and his insight in dealing with some fundamental problems in the study of humanity all compel admiration and deserve to be emulated in our age--an age when the split between the literary and the scientific approaches to the understanding of society is widening into a chasm. Vico has left some of his most important ideas underdeveloped or even undeveloped, to be excavated and polished by us afier our own fashion. It is surprising that Vico is still a man of obscure name in the academia of our country, Korea.

  • PDF

여성농업인에 대한 정책적 지원 강화 방안;여성농업인 육성 5개년계획 평가와 제언을 중심으로 (A Study on the Support Policy for Woman Farmers by Role Types in Korea)

  • 김경미;최윤지;이진영;고운미
    • 농촌지도와개발
    • /
    • 제12권1호
    • /
    • pp.29-44
    • /
    • 2005
  • The objectives of this study were: a) to analyze the upbringing policy for woman farmers in Korea, b) to find out the needs for the policy related to women's roles in decision making of farming activities, and c) to promote the programs in agricultural system for supporting rural women according to their role types and needs. This study was based on a literature review and discussions with the panel of experts witness and professionals including rural women. The major findings and conclusions from this study were as follows: 1 ) First of all, the policy for upbringing woman farmers had been improved. however, policy measures were still inadequate and were plenty of room for development. 2) Government policies were not focussed directly to meet the actual needs of rural women according to their various roles. 3) More government efforts should be enhanced to modify the policy and social system for rural women, and should be organized into the practical programs after careful considerations on the status of woman farmers according to their role types. 4) The five-year upbringing plan for woman farmers should be expanded to include strengthening economic power, widening woman farmers' influence. development of intellectual capacity and strengthening of self-enlightenment better health care and welfare services. and providing equal opportunities for women farmers.

  • PDF

초기 허혈성 대퇴골두 괴사증을 보이는 개에서 임상학적, 수술적, 방사선학적, 컴퓨터단층촬영, 조직학적 소견 (Early Stage Legg-Calve-Perthes Disease in a Dog: Clinical, Surgical, Radiological, Computed Tomography and Histological Findings)

  • 탁민애;윤헌영;정순욱
    • 한국임상수의학회지
    • /
    • 제30권5호
    • /
    • pp.366-370
    • /
    • 2013
  • 7개월령 암컷 포메라니안견이 오른쪽 후지 파행 증상으로 내원하였다. 내원시 신체 검사에서 오른쪽 대퇴 관절을 신장하였을 때 통증을 호소하였고 일반 방사선 사진에서 오른쪽 대퇴골두에 미약한 방사선 투과성 병변과 오른쪽 대퇴관절 공간의 확장을 확인하였다. 14일 후 일반 방사선 사진에서 오른쪽 대퇴골두 골단의 변위를 확인하였고 컴퓨터단층촬영에서 오른쪽 대퇴골두에 저음영의 병변과 골절선을 확인하였다. 오른쪽 대퇴골두 절제술을 실시하였고 조직학적 검사에서 골두 골간단과 골단의 괴사를 확인하였다. 본 증례는 초기 허혈성 대퇴골두 괴사증이 있는 개의 방사선학적, 컴퓨터단층촬영, 수술적, 조직학적 소견을 기술하였다.

장기적 관점에서 본 사회변화와 사회보험의 과제 (Long-Term Perspectives on Social Changes and Issues in Social Insurance)

  • 김진수
    • 한국사회복지학
    • /
    • 제46권
    • /
    • pp.37-59
    • /
    • 2001
  • This paper investigates the long-term social changes and the emerging issues in social insurance that such changes will entail, It does not attempt to resolve the conflict between neo-liberal reforms and neo-corporalist reforms. Nor does it confine itself to proposing the options to secure the financial stability of social insurance schemes. The aim of this paper lies in anticipating various problems that result from social development, analyzing the impacts of these problems on social insurance schemes, and delineating the solutions to these problems. This paper is comprised of three parts. First, it describes the expected long-term changes in society and the ensuing problems. Second, it asks whether these problems can be solved with increased public expenditures. For this purpose, an analysis of the trend in the expenditures by welfare states is attempted. Third, it summarizes the issues in social insurance and presents the possible solutions to the problems. In the chapter that deals with social changes and social problems, various aspects are reviewed, including the globalization process, the development of It industries, the uncertainty in the classification of incomes, the widening gap in earnings due to the bio-economy, and the relation between social insurance schemes and the tax system. It is concluded that there are limits to the role that increased public expenditures can play to solve the social problems. This paper argues for a structural change in the social insurance system. In every social insurance scheme, the state should foe-us its effect on the provision of basic protection against social risks for the whole population. At the same time, the state should improve the financial stability of the scheme and avoid large-scale deficits.

  • PDF

안와하벽 파열 골절에 대한 내시경적 접근법만을 이용한 재건술 (Orbital Floor Reconstruction through Endoscopic Transnasal Approach Alone)

  • 배성환;강경동;남수봉;배용찬;최수종
    • 대한두개안면성형외과학회지
    • /
    • 제13권2호
    • /
    • pp.99-103
    • /
    • 2012
  • Purpose: Many surgical methods for reconstruction of orbital floor fracture have been reported, which include subciliary approach, transconjunctival approach, transantral and transnasal endoscopic approach, etc. The purpose of this study is to demonstrate a surgical technique and analyze the results of transnasal endoscopic approach with Foley catheter ballooning without implantation of artificial surgical material through subciliary approach. Methods: Between February 2007 and November 2010, 29 orbital floor fracture patients, who had no herniated muscles through bone fragments, were treated through transnasal endoscopic approach with Foley catheter ballooning. Under the endoscopic view, the operator identified the opening of maxillary sinus. After widening of the opening using forceps, the operator reduced the fragmented bone with curved suction tip. Thereafter, 18-Fr Foley catheter was inserted. Four weeks after the operation, the catheter was removed. Results: Preoperatively, 6 patients had diplopias, 4 patients had limitations of extraocular motions and 3 patients had enophthalmos. After removal of the Foley catheter 4 weeks after the operation, 2 patients had diplopias, 1 patient had a limitation of extraocular motion, 1 patient has an enophthalmos and 1 patient had numbness on the cheek. These symptoms were resolved about 6 months after the surgery. Conclusion: The operative technique of Foley catheter ballooning through transnasal endoscopic approach without implantation of the artificial surgical material through subciliary approach can be considered one of the appropriate techniques for orbital floor fracture.