• Title/Summary/Keyword: comparative assessment

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Comparative assessment of a 1.5T endorectal coil and a 3.0T phased-array coil available for prostate MRI (전립선 MRI에서 사용하는 1.5T 경직장 코일과 3.0T 위상 배열 코일의 성능 비교 평가)

  • Cho, Jae-Hwan
    • Journal of Digital Contents Society
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    • v.11 no.3
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    • pp.283-290
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    • 2010
  • The effectiveness of 3.0T phase array coil images was tested by comparing signal-to-noise ratios for the same coil images relative to 1.5T endorectal coil images. Signal intensities were measured in the three regions of prostate, central and peripheral (right and left) after 40 patients with prostate cancer were imaged during the period between Jan. 2008 and Oct. 2009 with T2 W, T1 W, and DW images obtained respectively using endorectal coil on a 1.5T MR scanner and phase array coil on a 3.0T MR scanner. For quantitative analysis, comparisons of average SNRs for the same ROIs were made between groups scanned with a 1.5T and a 3.0T MR scanner. The signal-to-noise ratios were shown to increase more sharply when using a phase array coil at a 3.0T MR scanner compared to using an endorectal coil at a 1.5T MR scanner.

Comparative Study for Analgesic and Adverse Effects of 8% and 10% Hypertonic Saline in Epidural Adhesiolysis (경막외 유착용해술시 투여되는 8%와 10% 고장성 식염수농도의 제통효과 및 부작용의 비교)

  • Oh, Wan-Soo;Hong, Ki-Hyuk;Lee, Sang-Chul
    • The Korean Journal of Pain
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    • v.13 no.1
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    • pp.74-78
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    • 2000
  • Background: Epidural Adhesiolysis is an interventional pain management technique for patients with low back pain. In addition to local anesthetics and corticosteroid, hypertonic saline (NaCl) are used for the technique. Present study was aimed to compare analgesic and adverse effects of two different concentration of hypertonic saline in Epidural Adhesiolysis. Methods: Fifty-three subjects with low back pain with radiculopathy were assigned to one of two epidural adhesiolysis treatment groups: 8% (Group I, n=26) or 10% (Group II, n=27) hypertonic saline. 17 G epidural needle was inserted at sacral hiatus and catheter was advanced untill its tip was located at lesion site under fluoroscopic guidance. Subjects in all treatment groups received epidural corticosteroid and local anesthetic. And then, hypertonic saline injection via catheter were carried out daily for 3 days. Evaluation included assessment of pain relief (Numerical Rating Scale; NRS) at post-epidural adhesiolysis 1, 2, 3 days, 1 week, and 1, 3 months. We also looked for complications of epidural adhesiolysis at different concentration of hypertonic saline. Results: Statistical analysis demonstrated that NRS was not significantly different between two groups during 3 months after epidural adhesiolysis. There were no major differences of complications between two groups and disappeard after a few months without residual sequelae. Conclusions: We conclude that epidural adhesiolysis using 8% hypertonic saline is effective for relief of low back pain with proven lumbosacral fibrosis without any residual sequelae compared with 10%.

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A Comparative Study on Self-care Practices between the Natural Menopause Group and the Artificial Menopause Group (자연폐경 부인과 인위적폐경 부인간의 자기건강관리에 관한 비교연구)

  • Jung Moon-Hee
    • Journal of Korean Public Health Nursing
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    • v.4 no.2
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    • pp.15-23
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    • 1990
  • This study was carried out to explore the illness-related activities of the menopaused women. To achieve such a purpose, sixty-six cases of the middle aged women were sampled the naturally and the artificially menopaused group respectively from 1st, Aug. to 31th, Aug. in 1988. For the collection of data, 1, 140 women aged between 45-54 were selected through stratified sampling techniques in urban and rural area. Among them the final subjects for analysis were restricted to only those who had experienced menopause naturally or artificially. And then, after control for age and education analysis was performed. The data was analysed by use of frequency, percentage, $X^2-test,$ t-test, Pearson correlation coefficiency and stop-wise multiple regression. The obtained results were as follows. I. As for the se1f-perception on menopausal symptoms, it was revealed than Korean women, neithe in naturally and artificially, accepted the change of menstruation itself as serious. This shows us that middle-aged women had positively receptive attitudes that the change of menstruation is follwed by amenorrhea. 2. The artificially menopaused group scored more than the naturally one: (I) on the self-control activities such as self-assessment, lay-consultation, fever check, pulse check and observation of vagina discharge, (2) on the self-decision activities such as hospital and pharmacy utilization, (3) on the self maintenance activities such as walking, aerobic, weight check, skin care, skin protect, calori control diet control, milk intake, vegetable intake, cold water drinking before meal, parasol use and BP check The above results lead us that the self care practices of the menopaused women revealed' coping wit I menopausal symptoms at the first level in community and must be developed by the adequate nursin intervention.

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A Study on perceptive characteristics of space type through comparative evaluation on the image rotation of Interior Space (실내공간의 이미지 전회비교 평가를 통한 공간유형별 지각특성에 관한 연구)

  • Choi, Gae-Young;Kim, Jong-Ha;Lee, Sang-Keun
    • Korean Institute of Interior Design Journal
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    • v.19 no.6
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    • pp.179-187
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    • 2010
  • For the user-centered interior space design, a designer needs to carefully focus on the details from which the user must keenly observe or concentrate on the space and how to deliberately check the image of the space. Following this view, for the user-centered interior space design this study analyzes the way which the space is represented from the perspective of the image assessment. The results obtained from this study are summarized as follows: First, this study analyzed the characteristic of space image change in the form of cross-comparison between one space and a rotated space. With analyzing of an eye fixation by showing the space, the space images of "concentration-dispersion" and "strengthening-weaken "have an important role in the analysis of the perception of space. it confirmed that the method of space perception was changed by rotated the space. Second, With changing quantities of image and extraction of deviation from adjective in survey, it quantitatively graps that respondents of feel in space perception by changing the space and "concentration" and 'dispersion" for process of space choice. The results of the research can provide important basis to judge the changing of space perception by visual perception. Third, through the analysis of image change rate and deviation rate, the characteristics of image change with space change can be analyzed. The results derived from the study provide the evidence to support the image change by space rotating.

The Comparative Analysis for Priority Order on the Characteristics of Tourism Resources Development Plan between South and North Korea (남북한 관광자원개발 계획특성에 관한 우선순위 비교분석)

  • Kim, Sa-Young;Jang, Jun-Bok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.2
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    • pp.613-624
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    • 2013
  • The purpose of this study is to identify the priorities with respect to the characteristics of tourism resources development plan between the South and the North Korea. Through a preliminary investigation 287 lists of questions were distributed from May 14, 2012 to December 5, 2012 and from among them 252 lists were used. Expert Choice 11.5 was used to do pairwise comparisons and priorities assessment. Based upon the results of empirical analysis, the priority order sets of the domain of tourism resources development plan should be related to the development contents, the development objects, the development patterns, and the development subjects in the South Korea. Those should be related to the development subjects, the development objects, the development contents, and the development patterns in the North Korea.

An Scholastic Analysis on the SCI Publication Results and Research Capability of Major Academic and Research Institute in Oceanography (국내외 해양관련 연구기관 및 대학의 SCI 학술연구능력 분석 연구)

  • Han Jong-Yup
    • Journal of Korean Library and Information Science Society
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    • v.36 no.4
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    • pp.309-328
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    • 2005
  • Comparative analyses were carried out on SCI publication results produced by scientists during their employment at the five domestic ocean-related college and six major oceanographic institutes in other countries. Assessment of research performance included bibliometric indicators : type of research categories, and, evaluation of the reliability of citation data to establish future research goals. Analysis parameters also included number of SCI publication results, cited frequency, higher ranked author group, higher ranked Journal group, higher ranked SCI category for each academic and research Institutes in oceanography. Such analyses can help improve and achieve institutional goals in the future as well as help managing and prioritizing majors scientific journals and information services.

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A Security Evaluation Criteria for Korean Cloud Computing Service (한국형 클라우드를 위한 정보보호 관리체계 평가 기준)

  • Kim, Kichul;Heo, Ok;Kim, Seungjoo
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.23 no.2
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    • pp.251-265
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    • 2013
  • Cloud computing provided as a service type by sharing IT resources cannot be activated unless the issue of information security is solved. The enterprise attempts to maximize the efficiency of information and communication resources by introducing cloud computing services. In comparison to the United States and Japan, however, cloud computing service in korea has not been activated because of a lack of confidence in the security. This paper suggests core evaluation criteria and added evaluation criteria which is removed the redundancy of the security controls from existing ISMS for Korean cloud computing through a comparative analysis between domestic and foreign security controls of cloud certification scheme and guidelines and information security management system. A cloud service provider certified ISMS can minimize redundant and unnecessary certification assessment work by considering added evaluation criteria.

A Comparative the Assessment of Oral Health Plans in Schools for Disabled Youth in Different Regions (지역별 장애인 학교 구강보건사업 평가 비교)

  • Jeong, Mi-Ae
    • The Journal of the Korea Contents Association
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    • v.10 no.7
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    • pp.276-284
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    • 2010
  • The purpose of this study was to examine the oral health plans of 142 special schools for disabled youth in different regions across the nation based on the self-evaluation of their school nurses in an attempt to help improve school oral health plans and provide useful information on the planning of oral health plans for schools for disabled youth, as the oral health plans of special schools for disabled youth depended on local characteristics. As a result of make a synthetic evaluation, the oral health plans of special schools located in Gyeongsang Province ranked first, and those of special schools in Seoul scored low due to the smallest number of items included. And it's recommended to select separate objectives of oral health education geared toward physically disadvantaged children, to extend school fluoride mouth rinse and pit & fissure sealing projects, and to enhance the management of school dental clinics.

Exploring the Characteristics of scenic landscapes of between the Dulle-gil and the uphill trail in Bukhansan National Park (북한산국립공원의 둘레길과 정상정복형 탐방로의 경관 특성 비교 연구)

  • Lee, Kyu-Chul;Son, Yong-Hoon;Lee, San-Ha
    • Journal of Korean Society of Rural Planning
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    • v.22 no.3
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    • pp.21-31
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    • 2016
  • This is a comparative study focused on the scenic landscape preferences derived from visitors's perceptions at the Dulle-gil and the uphill trail in Bukhansan National Park. Unlike previous landscape assessment methods, this study contains more direct and on-site analysis with methods of understanding the visitors' perceptions by using 'visitor employed photography(VEP)' which requires each visitor to take preferable scenic landscape with one's own smart phone camera. The scenic landscape types at two different trails were categorized and then the types favoring most of participants were verified. There are total number of 16 visual landscape types preferred by participants at both the Dulle-gil and the uphill trail in Bukhansan National Park. As in terms of consensus photography(CP) on the Dulle-gil was found to have more diverse elements including both natural and artificial elements compare to the uphill trail. Furthermore, the perceptually excited node(PEN) at the Dulle-gill were found to be more scattered evenly whereas PEN at the uphill trail were concentrated on the entrance and the top of the mountain. It is necessary to consider that the scenic landscape management at the Dulle-gil and the uphill trail require different approaches. Facilities were set based on careful consideration of distinctive geographical features and vegetation in the Dulle-gil. And the management need to be focus on the 'forested area' maintaining natural state in the uphill trail. Futhermore, the result of the CP and PEN in the trails would be helpful to proceed the next step of landscape perception study depending on characteristics of groups.

A Comparative Legal Study of Germany, the United Kingdom, Japan and Korea for the Regulations on Special Management Materials (우리나라 산업안전보건법상 특별관리물질 규정에 대한 독일, 영국 및 일본과의 비교법적 고찰)

  • Choi, Sangjun;Phee, Young Gyu;Kim, Shinbum;Kim, Won
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.23 no.2
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    • pp.137-147
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    • 2013
  • Objectives: This study was conducted in order to evaluate the limitations of the regulations on the safety and health standards for special management materials(SMM) under the Industrial Safety and Health Act in Korea. Methods: Hazardous chemicals management systems in Germany(Hazardous Substances Ordinance), the UK(Control of Substances Hazardous to Health Regulations), Japan(Ordinance on Prevention of Hazards due to Specified Chemical Substances) and Korea(Regulation of Occupational Safety and Health Standards, ROSHS) were investigated and compared in terms of 14 items. Results: Among the 14 items, we eventually found seven items which should be amended: 1) definition and scope, 2) general duties clause, 3) principles of management, 4) preventive measures, 5) control measures, 6) risk assessment, and 7) record keeping. The principal limitations of Korean regulations in comparison with those of other countries were that there were no preventive measures such as substitution, and no principles of good practices for the control of exposure to SMM. In terms of control measures, there were no regulations on suitable workplace design, reducing the number of exposed workers, reducing the level and duration of exposure, and reducing the quantity of hazardous substances in ROSHS. Conclusions: Based on the results of this study, ROSHS should be complemented with preventive measures and the principles of management related to SMM. According to the suggestions, an employer who deals with SMM should preferably consider the possibility of substitution and perform substitution so far as is reasonably practicable.