• Journal of the Korean Society of Radiology
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• v.14 no.5
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• pp.511-515
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• 2020

In this study, we evaluated image quality for new Gadolinium Aluminum Gallium Garnet (GAGG) scintillation material based on the Geant4 Application for Tomographic Emission (GATE) simulation tool. The gamma camera detectors with GAGG and NaI scintillation were designed. In particular, we modeled modified body phantom by National Electrical Manufacturers Association International Electrotechnical Commission to evaluate the simulated images. To analysis the image performance, the contrast to noise ratio (CNR) and coefficient of variation (COV) were used by drawn the region of interests, respectively. Based on the CNR and COV results, the CNR value for GAGG material is higher approximately 17 % than NaI material. In addition, the COV value for GAGG material is lower approximately 17 % than NaI material. In conclusion, we confirmed the performnace of GAGG based gamma camera is useful to improve the image quality for the nuclear medicine instrumentation.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2003.11a
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• pp.657-671
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• 2003

정보화 사회에서 관광 웹 사이트는 그 지역의 가치가 있는 관광정보를 제공하고, 관광객을 유치하는 마케팅 도구로서 그 역할이 중요시되고 있다. 또한, 인터넷 정보 수용자는 관광 웹 사이트를 매개로 하여 그 지역에 대한 이미지를 갖게 되고, 점차적으로 일정한 태도를 형성하여 결국 관광지를 선택하는데 영향을 받는다고 볼 수 있다. 지방 자치 단체의 홈페이지에서 관광 홍보가 매우 중요하다. 그 이유는 첫째 인터넷 외에 지역의 관광정보를 여행하기 전에 입수하는 것이 매우 어려운 상황이고, 둘째로, 인터넷을 통한 관광 정보 탐색이 대중화되고 있기 때문이다. 정보탐색은 지속적 탐색이라 표현할 수 있는데 잠재적 관광객이 관광 홈페이지를 매개로 하여 그 지역의 대한 이미지를 갖게 되고 그에 따라 관광지 선택에 영향을 받는다고 볼 수 있다. 하지만, 광역자치단체의 웹사이트 상에서 관광정보를 구축하여 제공할 때에 정보 수용자 측면보다는 개발자 측면 중심으로 이루어진 경우가 많이 있다. 그래서, 막대한 재정적 투자를 통해 개발된 관광정보가 수용자의 욕구에 다소 못 미칠 수 있다. 이에 관광정보 수용자들의 정보탐색 요인을 파악하여 개발할 필요성이 대두되고 있다. 또한, 관광정보 요구자가 관광정보를 탐색할 때 그들의 특성에 따라 관광정보 웹 사이트를 평가하는 기준이 다르게 나타날 수 있다. 이를 기반으로 대학생들이 개인의 특성에 따라 웹 사이트의 평가에 미치는 영향에 대해 분석하고자 한다. 설문지법을 사용하여 전남 D대학교의 관광학 전공, 경영학 전공, IT(정보통신)학 전공 학생을 대상으로 총 90부를 설문조사 하였으며, 각 전공별 학생들을 컴퓨터 실습실에서 1시간 동안 전남도청 관광 웹 사이트를 탐색하게 한 후 설문지에 응답하는 방식을 사용했다. 개인의 특성에 따라서 관광정보 웹 사이트 수용도 에서는 유흥성향과 외향-내향성 성향이 관광정보 웹 사이트의 수용도에 영향을 미친다는 매우 유의하다는 결과를 도출 할 수 있었다. 웹 사이트의 특성에 따라서 관광정보 웹 사이트 수용도 에서는 탐색의 편리성, 정보의 충실성, 정보의 질이 관광정보 수용도 유의적이라는 결과를 도출했다. 하지만, 대고객 서비스에는 관광정보 웹 사이트 수용도에 대한 영향이 유의적이지 못한 결과를 보이고 있는데, 이를 위해서는 사용자에게 개별서비스 제공을 함으로서, 동영상이나 각종 사운드, 사용자 편의를 위한 관련정보 다운로드, 사용자를 고려한 부과서비스를 제공한다면 웹 사이트의 성과가 높을 것임을 기대할 수 있다.

• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.16-23
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• 2019

The purpose of this study was to examine the influence of completeness of the learning-portfolio on academic achievement and program satisfaction of college students participating in the learning-portfolio program. For the aim, the evaluation tool of the learning-portfolio was developed. It assesses the report of goals of the course, diaries of studying, and reflection journals. The data of the grade in the course connected with learning-portfolio, grade point average(GPA), and satisfaction surveys of learning-portfolio program for 389 college students joining in learning-portfolio program were gathered. The findings showed that the score in the evaluation tool of the learning-portfolio significantly and positively affects the grade in the course connected with learning-portfolio, GPA and the satisfaction of learning-portfolio program. The results imply that it is important to evaluate the quality of the learning-portfolio in order to improve the effect of learning-portfolio program.

• Journal of Industrial Convergence
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• v.19 no.5
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• pp.91-102
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• 2021

The purpose of this study was to systematically review about randomized controlled trials the characteristics and effect of cognitive function intervention for patient with dementia. We searched studies published from January 2010 to June 2021 in 5 databases. A total 1,104 studies were found and included 27 studies in final analysis. Methodological quality was assessment with the Cochrane's RoB(risk of bias) tool. Mini-Mental State Examination(MMSE) was the most used as the assessment tool for identifying the cognitive function. Cognitive function intervention were exercise, art, cognitive stimulation, reminiscence, music, multimodal cognitive rehabilitation, virtual reality, horticultural, computerized cognitive training, intentional snoezelen, beauty, cooking, korean traditional familiarity program. Most of the intervention except exercise 2, virtual reality 1, beauty 1 were effective in improving cognitive function. This study provided a clinical evidence for planning and implementing intervention for cognitive function intervention. In the future, various intervention studies suitable for the characteristics of dementia should be conducted by improving the quality of research methods.

• Journal of Industrial Convergence
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• v.20 no.10
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• pp.39-49
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• 2022

The purpose of this study was to systematic review about randomized controlled trials the characteristics and effect of non-pharmacological intervention on depressive symptom in elderly with mild cognitive impairment. We searched studies published from January 2011 to July 2021 in 3 databases. A total 1,455 studies were found and included 11 studies in final analysis. Methodological quality was assessment with the Cochrane's RoB(risk of bias) tool. Geriatric Depression Scale(GDS) was the most used as the assessment tool for identifying the depressive symptom. Intervention were yoga, psychosocial intervention, cognitive training, health education, multi-component intervention, game training, aerobic/pulmonary physiotherapy, art therapy, music reminiscence activity, memory specificity training, cognitive stimulation therapy and SWTW(sleep well, think well) program. Among the intervention programs, yoga, multi-component intervention and game training were effective in improving depressive symptom. This study provided a clinical evidence for planning and implementing intervention on depressive symptom in elderly with mild cognitive impairment.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.8
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• pp.429-439
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• 2020

This study examined the effect size of virtual reality programs on the upper extremity function of stroke patients through a meta-analysis. Databases, such as the Research Information Sharing Service, the Korean Studies Information Service System, the National Library of Korea, the Korean Citation Index, and the National Digital Science Library, were used. Previous articles were surveyed for virtual reality programs between January 2010 and June 2019. A meta-analysis was performed by selecting the final 14 studies based on the PICO standard. The RoB and RoBANS tools were used as quality assessment tools for randomized and non-randomized control trials, respectively. The CMA 3.0 program was used to calculate the effect size of each study. Sub-group analysis, meta-regression analysis, and publication bias were performed. The total effect size of the virtual reality programs on the upper extremity function was Hedges's g=0.390 (95% CI: 0.192~0.587) (p<.05). The virtual reality program positively affects the upper extremity function of stroke patients. Therefore, the development of various virtual reality programs and industry-academia cooperation technology for stroke patients is required in accordance with the fourth industry. Randomized control trials and detailed upper extremity function studies for virtual reality programs will be needed in follow-up studies.

• Journal of Preventive Medicine and Public Health
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• v.31 no.3 s.62
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• pp.503-515
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• 1998

In order to investigate the factors influencing QOL and life satisfaction of the physically disabled, the author interviewed, by using structuralized questionnaire, 440 individuals among the physically disabled who were participated in Health Examination from April to July, 1997. The questionnaire consisted of the general characteristics(sex, age, marital status, family number, etc), the Reintegration to Normal Living Index(RNLI) to assess QOL, and the single item of five-likert scale to evaluate life satifaction. The means of RNLI were $16.2{\pm}4.8$ in total score, $12.2{\pm}3.4$ in daily functioning and $4.0{\pm}2.1$ in perception of self. The respondents were less reintegrated toward social activities and relationships than impairments or disabilities. While the satisfied group was 47.3%, the dissatisfied group was 52.7%. As the results of multiple regression and logistic regression analysis, the significant predictors of QOL were age, education, job, grade of disability and subjective health status. The life satisfaction were related to economic status, job and subjective health status. To improve QOL and life satisfaction of the physically disabled, it is important that we improve their basic socioeconomic status by getting a job through rehabilitation education and induce them to have positive self-assessment by extending the opportunity of social participation.

• The Journal of Korean Academy of Sensory Integration
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• v.21 no.2
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• pp.69-83
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• 2023

Objective : This study sought to systematically examine the intervention effect of social stories when applied in relation to children with sleep disorders. Methods : Studies available in the SCOPUS, ScienceDirect, PsycArticles, and PubMed databases that were published from 2001 to 2022 were searched. The keywords used for the search were as follows: ("social story" OR "social stories") AND ("sleep" OR "sleep disorders" OR "sleep wake disorder bedtimes" OR "sleep initiation and maintenance disorders" OR "sleep wake disorder" OR "sleep arousal disorders"). Based on the selection criteria, six experimental studies were selected and analyzed. Results : The selected studies were two randomized controlled trials, three individual trials, and one case study. The subjects were mostly children diagnosed with autism spectrum disorder who were school-aged or adolescent. The intervention types were often complex interventions, including social stories and other interventions, while the durations of the interventions varied from one day to more than 40 days. The interventions had a positive effect on the subjects' sleep quality, with night wakings, sleep onset delay, and sleep anxiety all being improved. As standardized assessment tools to evaluate the effectiveness of social stories, the Child Sleep Habits Questionnaire and the Child Behavior Checklist were used in two papers each, and were the most commonly used. As non-standardized assessment tools, each of the four papers used turbulence and sleep diaries as assessment tools. Conclusion : The effect of social story mediation can be divided into sleep quality and sleep-related behavior. In terms of sleep quality, studies showing improvements in night wakings, sleep onset delay, and sleep anxiety accounted for a large proportion of the sample. The detailed effect area of sleep quality showed a significant improvement after the interventions in most studies, and in all six studies analyzed in the present study, the continuation of the effect after the intervention was confirmed via follow-up tests. Thus, the findings of this study are expected to be helpful when applying social stories in children with sleep disorders in clinical practice due to presenting the intervention effects, outcome evaluation tools, and intervention periods in children with sleep disorders in prior investigations involving social stories.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.11
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• pp.4331-4337
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• 2010

This study was to investigate the effectiveness of deep neck flexor exercise with using modalities in pain reduction and functional improvement to those who have chronic neck pain. The subjects were instructed the patients with chronic neck pain (37 people). Randomized study design of two groups was used: Only using modalities group and deep neck flexor exercise group with using modalities, and each group was taken by three times per week for 12 weeks. To evaluate the effects of therapies was to research the questionnaire about VAS(visual analog scale), NDI(neck disability index), and endurance of deep neck flexor before experiment, after 6 weeks and after 12 weeks. In visual analog scale(VAS) and neck disability index(NDI), there were significant decreased in using modalities group and deep neck flexor exercise group after 6 weeks more than before experiments but were only significant decrease in deep neck flexor exercise group after 12 weeks. The endurance of deep neck flexor was significantly increased in deep neck flexor exercise group after 6 weeks and 12 weeks more than before experiments. Thorough these results deep neck flexor exercise has the effectiveness to the therapies of chronic neck pain. Using the deep neck flexor exercise would be high effects on pain reduction and functional improvement and also considered in improving the living qualities of those who have chronic neck pain.

• 재활복지
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• v.22 no.4
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• pp.43-58
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• 2018

Swallowing disorders that can affect nutrient intakes and quality of life are commonly shown among the elderly as well as patients with neurogenic disorder. This study verifies the reliability and validity of the Swallowing Disturbance Questionnaire (SDQ), a subjective swallowing disability assessment tool, modified for Koreans' eating habit and cultural sentiment, against 105 stroke patients, in order to help identify early swallowing problems of the elderly. Reliability of internal consistency in the Korean version of SDQ is .601, test-retest reliability is .97, and concurrent validity is .956. Based on 8 points of cut-off score, 46.8% of sensitivity and 81.6% of specificity. Comparing the results of video fluoroscopic study (VFSS), an objective swallowing disorder test with those of Korean version of SDQ, negative predictive value (NPV) and positive predictive value (PPV) was shown as 81% and 53%. The Korean version of SDQ is expected to be a useful testing tool to discriminate swallowing disorders in stroke patients. It has great clinical significance in that swallowing difficulties shown by subjects can be sorted out to request a diagnostic assessment before clinical evaluation by a rehabilitation therapist or ruling out unnecessary exposure to additional tests by accurately identifying stroke patients without swallowing problems.