• Journal of Multimedia Information System
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• 제6권4호
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• pp.317-322
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• 2019

The purpose of this study was to develop a self-management program for patients suffering from coronary artery disease (CAD), based on the self-determination theory and subsequently perform a heuristic evaluation by professionals and a quality assessment by users. The program consisted of 6 main menus and 20 submenus. Heuristic evaluation was conducted using eight principles, and as a result, a score of 1 was assigned by a professional for five principles: consistency and mapping, good ergonomics and minimalist design, flexibility and efficiency, anesthetics, and error management. Two professionals gave the principles of ease of input, screen readability, and glanceability a score of 1. In the quality assessment by the users, the system quality category had the highest score of 4.6 out of 5, and information quality had the lowest score of 3.87 out of 5. The overall average score was 4.08, which indicated the general satisfaction regarding the quality of the application. We have reflected on all the recommendations provided by the professionals based on their heuristic evaluation and incorporated them in the program.

• 종양간호연구
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• 제9권1호
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• pp.1-6
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• 2009

Purpose: The purpose of this study was to identify the needs of hospice care in families of the hospitalized patients with terminal cancer. Method: The data were collected from April to July, 2008. The participants were 100 family caregivers of hospitalized terminal patients with cancer recruited from two general hospitals in 2 cities in Korea. Needs of hospice care were measured using the 'Needs Assessment Instrument for Hospice Care in Families of the Patients with Cancer'. Results: The mean of needs score was 76.6, which meant degree of the needs was very high. Among the categories of the needs, the mean of category 'emotional care' was the highest. There were significant differences in the needs of hospice care according to sex and type of present therapy. Conclusion: Health care providers in hospital and hospice facilities must assess the needs of families as well as the patients in order to meet their specific needs. Additionally, they need to have deeper understanding of the need of emotional care and to apply emotional care to hopice patients and their families.

• Korean Journal of Radiology
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• 제20권5호
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• pp.759-772
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• 2019

Objective: To investigate the value of ultrasound (US) microflow assessment in distinguishing malignant from benign solid breast masses as well as the association between US parameters and histologic microvessel density (MVD). Materials and Methods: Ninety-eight breast masses (57 benign and 41 malignant) were examined using Superb Microvascular Imaging (SMI) and contrast-enhanced US (CEUS) before biopsy. Two radiologists evaluated the quantitative and qualitative vascular parameters on SMI (vascular index, morphology, distribution, and penetration) and CEUS (time-intensity curve analysis and enhancement characteristics). US parameters were compared between benign and malignant masses and the diagnostic performance was compared between SMI and CEUS. Subgroup analysis was performed according to lesion size. The effect of vascular parameters on downgrading Breast Imaging Reporting and Data System (BI-RADS) category 4A masses was evaluated. The association between histologic MVD and US parameters was analyzed. Results: Malignant masses were associated with a higher vascular index (15.1 ± 7.3 vs. 5.9 ± 5.6), complex vessel morphology (82.9% vs. 42.1%), central vascularity (95.1% vs. 59.6%), penetrating vessels (80.5% vs. 31.6%) on SMI (all, p < 0.001), as well as higher peak intensity (37.1 ± 25.7 vs. 17.0 ± 15.8, p < 0.001), slope (10.6 ± 11.2 vs. 3.9 ± 4.2, p = 0.001), area (1035.7 ± 726.9 vs. 458.2 ± 410.2, p < 0.001), hyperenhancement (95.1% vs. 70.2%, p = 0.005), centripetal enhancement (70.7% vs. 45.6%, p = 0.023), penetrating vessels (65.9% vs. 22.8%, p < 0.001), and perfusion defects (31.7% vs. 3.5%, p < 0.001) on CEUS (p ≤ 0.023). The areas under the receiver operating characteristic curve (AUCs) of SMI and CEUS were 0.853 and 0.841, respectively (p = 0.803). In 19 masses measuring < 10 mm, central vascularity on SMI was associated with malignancy (100% vs. 38.5%, p = 0.018). Considering all benign SMI parameters on the BI-RADS assessment, unnecessary biopsies could be avoided in 12 category 4A masses with improved AUCs (0.500 vs. 0.605, p < 0.001). US vascular parameters associated with malignancy showed higher MVD (p ≤ 0.016). MVD was higher in malignant masses than in benign masses, and malignant masses negative for estrogen receptor or positive for Ki67 had higher MVD (p < 0.05). Conclusion: US microflow assessment using SMI and CEUS is valuable in distinguishing malignant from benign solid breast masses, and US vascular parameters are associated with histologic MVD.

• 한국전문물리치료학회지
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• 제7권1호
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• pp.1-21
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• 2000

The purposes of this study were to research the current state of evaluation of children with delayed development and cerebral palsy and determine pediatric physical therapists' knowledge of assessment tools and their use. The subjects were 130 pediatric physical therapists (general hospitals, university-related hospitals, rehabilitation centers, etc.). Data was obtained from August 24, 1999 to October 18, 1999 by means of a survey questionnaire. The results were as follows: 1. The current state of pediatric physical therapist evaluation of children with delayed development and cerebral palsy. 1) Tools used to assess functional areas of children with cerebral palsy were: subjective description format-128 (47.1%); the GMFM-58 (21.3%); facility-generated tool-51 (18.8%); and DDST-15 (5.5%). 2) Tools used to assess developmentally delayed children were: subjective description format-121 (50.6%); the GMFM-43 (18.0%); facility-generated tool-41 (17.2%); and DDS T-14 (5.9%). 3) After their college or university study, therapists who had attended lectures on evaluation were 113 (86.9%); 13 (10.0%) therapists had not attended any lectures on evaluation 2. Test scores of physical therapists' professional knowledge of evaluation procedures: high (more than 36 points)-74 (56.9%); moderate (18~35 points)-39 (30.0%); and low (below 17 points)-none. 1) For therapists treating cerebral palsied children, 73 (65.2%) were in the high range, 39 (34.8%) were in the moderate range and none were in the low range. 2) For therapists treating children with delayed development, 71 (65.7%) were in the high range, 37 (34.3%) were in the moderate range and none were in the low range. Although the general degree of professional knowledge of evaluation was quite high, there was a lack of variety in the assessment tools used With a large number of therapists depending on subjective description. Possible reasons for the low rate of objective asses sment tool use: 1) Poor clinical environment: too many clients and lirnited treatment time. 2) Lack of any medical insurance fee category for specific assessment tools. 3) Lack of continuing education opportunities in pediatric evaluation skills during or after either college-based (3 year) or university-based (4 year) education programs. Based on the study results, provision of more extended educational opportunities would promote the use of a greater variety of objective assessment tools by pediatric physical therapists.

• 대한공업교육학회지
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• 제34권2호
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• pp.161-178
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• 2009

이 연구는 공과대학생들의 공학에 대한 태도를 측정하기 위한 도구 개발을 위해 수행되었다. 연구방법은 문헌연구를 기초로 공학에 대한 태도의 조작적 정의와 범주를 마련하였고 공학에 대한 태도 측정 문항을 개발한 후, 공과대학 재학생을 대상으로 요인분석을 실시하였다. 이에 따른 연구의 결과는 다음과 같다. 이 연구에서는 태도의 본질적 측면에 근거하여 인지적 변인으로는 '공학의 가치에 대한 태도'와 정의적 변인으로 '공학에 대한 일반적 태도와 공학 학습에 대한 태도', 행동적 변인으로 '공학 활동에의 참여'로 선정하였다. 이에 따른 하위영역은 첫째, 공학의 가치에 대한 태도에는 학문/직업적 가치, 사회적 가치, 개인적 가치로 분류되었다. 둘째, 공학에 대한 일반적 태도와 공학학습에 대한 태도에는 일반적 태도, 공학학습에 대한 태도(자아효능감, 두려움, 흥미, 협동)로 분류되었다. 셋째, 공학 활동에의 참여는 공학 학습에 대한 태도로 분류하였다. 이러한 검사 도구를 현장에 적용한 결과, 공학학습에 대한 태도 중에서 자기 개념과 자아효능감을 자아효능감으로 통합하고 1개 문항의 독단적 요인 수는 제거하였으며, 요인분석(Verimax)을 통해 최종적으로 3개 변인과 9개 하위영역, 39개 문항으로 구성된 대한 일반를 '공학에 대한 학에 대한 일반'(Instrument of Assessment the Attitude toward Engineering, IAAE)로 명명하였다. 이 측정 도구는 공과대학생의 공학에 접근하는 태도를 알 수 있는 기초자료로 활용하면 유용하리라 판단된다.

• 경영과학
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• 제33권3호
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• pp.53-64
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• 2016

The government is mapping out R&D innovation measures aimed at improving the qualitative level of the performance of national R&D projects that are supported by grants or public funds. This paper proposes ways of making improvements in technology planning, project assessment, performance management, and results evaluation in order to boost the efficiency of the country's promotion of ICT R&D projects, as well as to upgrade the processes involved with its technological innovation system at each of the commercialization stages of its R&D projects. According to our experts' in-depth survey and interview, it has been found that technology planning is the most important phase in the full cycle-based technological innovation system and that the promotion of a combination of top-down and bottom-up approaches is the most reasonable. This paper also suggests it is necessary to secure a process for exploring technological opportunities as the preparatory phase for technology planning, and that it is desirable to reflect the technology demand map associated with the technology road map. Currently, R&D projects are divided into policy designation, designation contest, and free contest. To minimize the inefficiency associated with indiscriminate competition, this paper proposes the introduction of a general contest system in order to change the project assessment system into one based on the results of the competition in each category(e.g. firms, universities, research institutions, etc.).

• 대한방사선기술학회지:방사선기술과학
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• 제32권2호
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• pp.147-151
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• 2009

ROC에 의한 의료영상을 평가하는 방법으로 지금까지는 5단계로 평가하는 평정확신도법이 일반적으로 사용되었다. 이 평정확신도법에서는 TPF나 FPF의 산출을 쉽게 구하는 것이 가능하나, 실험에 있어서 부드럽게 ROC곡선의 추정을 하기 위해서 관찰자에 대해 적당한 카테고리 배분이 요구되거나 또 짜여진 카테고리 배분을 위해 그 데이터가 무효해지는 경우가 많다. 이러한 문제를 해결하기 위해 또는 관찰실험 이외의 데이터에도 ROC해석의 응용이 가능해지도록 카테고리 분류가 되어 있지 않은 연속적으로 분포된 실험결과를 이용 ROC 해석을 행하는 방법인 연속확신도법이 보고 되었다. 하지만 국내에서는 의료영상의 평가에 연속확신도법을 적용한 예가 거의 없어서 흉부 디지털영상의 평가에 적용해 보았다. 그 결과 상용화된 프로그램에 의하여 부드러운 ROC곡선을 그릴 수 있었으며, 특성값을 쉽게 측정할 수 있어 디지털 의료영상의 평가에 적절히 사용될 수 있으리라 사료된다.

• 정보화정책
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• 제20권1호
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• pp.85-109
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• 2013

본 연구는 오픈소스 소프트웨어(OSS, Open Source Software)의 실질적인 활용을 증대시키기 위해 성숙도뿐 아니라 적용성까지 평가하는 모델과 구현 방법을 제시한다. 이 모델은 기존 모델에서 평가될 수 없었던 적용성을 측정하기 때문에, OSS를 신규 도입하거나, 상용 소프트웨어를 OSS로 대체, 또는 OSS를 상용 소프트웨어와 비교 시 활용할 수 있도록 사용자들을 지원한다. 이 모델의 설계 및 구현을 위해 7단계의 방법론을 제시하였고, 설문을 실시하여 모델의 타당성과 신뢰성을 검증하였다. 또한, 이 방법론을 기반으로 인프라 부분에서 OSS에 대한 성숙도와 적용성을 평가하는 실제적인 예를 제공함으로써 이 모델의 실용성을 입증하였다. 향후 일반 사용자뿐만 아니라 정보화 담당자들까지도 산업적인 적용을 위해 최적의 OSS를 이 모델을 활용하여 선정할 수 있을 것이다. 따라서 본 연구의 결과가 OSS 활성화 정책에 크게 기여할 것으로 기대된다.

• 한국환경보건학회지
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• 제47권5호
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• pp.432-445
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• 2021

Background: The European Centre for Ecotoxicology and Toxicology of Chemicals' Targeted Risk Assessment (ECETOC TRA) tool has been recognized by EU REACH as a preferred approach for calculating worker health risks from chemicals. Objectives: The applicability of the ECETOC TRA to occupational exposure estimation from industrial uses of methanol was studied by inputting surveyed and varied parameters for TRA estimation as well as through comparison with measured data. Methods: Information on uses of methanol was collected from seven working environment monitoring reports along with the measured exposure data. Input parameters for TRA estimation such as operating conditions (OCs), risk management measures (RMMs) and process categories (PROCs) were surveyed. To compare with measured exposures, parameters from the surveyed conditions of ventilation but no use of respiratory protection were applied. Results: PROCs 4, 5, 8a, 10, and 15 were assigned to ten uses of methanol. The uses include as a solvent for manufacturing sun cream, surfactants, dyestuffs, films and adhesives. Methanol was also used as a component in a release agent, hardening media and mold wash for cast products as well as a component of hard-coating solution and a viscosity-controlling agent for manufacturing glass lenses. PROC 8a and PROC 10 of a cast product manufacturer without LEV (local exhaust ventilation) and general ventilation as well as no respiratory protection resulted in the highest exposure to methanol. Assuming the identical worst OCs and RMMs for all uses, exposures from PROC 5, 8a, and 10 were the same and the highest followed by PROC 4 and 15. The estimation resulted in higher exposures in nine uses except one use where measured exposure approximated exposures without RMMs. Conclusions: The role of ECETOC TRA as a conservative exposure assessment tool was confirmed by comparison with measured data. Moreover, it can guide which RMMs should be applied for the safe use of methanol.

• Advances in Computational Design
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• 제2권4호
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• pp.293-311
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• 2017

There are several claimed benefits for the impact of design patterns (DPs) on software quality. However, the association between design patterns and fault-proneness has been a controversial issue. In this work, we evaluate the fault-proneness of design patterns at four levels: the design level, category level, pattern level, and role level. We used five subject systems in our empirical study. As a result, we found that, at the design level, the classes that participate in the design patterns are less fault-prone than the non-participant classes. At the category level, we found that the classes that participate in the behavioral and structural categories are less fault-prone than the non-participant classes. In addition, we found that the classes that participate in the structural design patterns are less fault-prone than the classes that participate in the other categories. At the pattern level, we found that only five patterns show significant associations with fault-proneness: builder, factory method, adapter, composite, and decorator. All of these patterns except for builder show that the classes that participate in each one of them are less fault-prone than the non-participant classes in that pattern. The classes that participate in the builder design pattern were more fault-prone than the non-participant classes and the classes that participate in several patterns: the adapter, the composite, and the decorator design patterns. At the role level, the most significant differences were between the classes that participate in some roles and the non-participant classes. Only three pairs of design pattern roles show significant differences. These roles are concrete-product vs. concrete-creator, adapter vs. adaptee, and adapter vs. client. The results recommend the use of design patterns because they are less fault-prone in general except for the builder design pattern, which should be applied with care and addressed with more test cases.