• 한국윤활학회:학술대회논문집
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• 한국윤활학회 2002년도 proceedings of the second asia international conference on tribology
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• pp.141-142
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• 2002

In this paper, we propose a slurry jet (water containing $1\;{\mu}m$ alumina particles) impact test in order to quickly evaluate the wear properties of physical vapor deposited (PVD) coatings on commercial cutting tools. Linear wear was obtained for bothe coating and substrate material, and the penetration through the coating into the substrate was signified by a sharp increase in slope of the wear versus time curve. The PVD coatings deposited on the tools showed the same wear rates as those on reference plate specimens produced by the same coating methods. We conclude that our proposed evaluation technique for coatings is considerably useful as a screening test when evaluating coated tools like twist drills, taps, end mills, gear hobs, etc.

• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 1998년도 Proceedings of UNESCO-internetwork Cooperative Regional Seminar and Workshop on Bioassay Guided Isolation of Bioactive Substances from Natural Products and Microbial Products
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• pp.174-174
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• 1998

Twelve different derivatives were synthesised from chitin/chitosan[1, 2, 3]. Their structures have been determined by different physical methods. The bioassay screening on antifungal and antibacterial activities of all these compounds showed that most of them had significant activity and they can inhibite the growth of some fungi and bacterias : E. coli, S. pyogenes, F. oxysporum, P. oryzae, that caused the spoilage of fresh fruits and foods. Furthermore, all of these compounds are non-toxic (LD$\_$50/>50g/kg) and can be applied for food preservation.

• 대한임상독성학회지
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• 제17권1호
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• pp.14-20
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• 2019

Purpose: This study estimated the incidence of delirium and associated risk factors and outcomes in ICU patients with acute poisoning. Methods: Data were collected from ICU patients over 18 years of age that were admitted via the emergency center after presenting with poisoning from 2010 to 2015. Delirium was assessed retrospectively using the Intensive Care Delirium Screening Checklist (ICDSC). Risk factors were evaluated by univariate and multivariate analysis. Results: A total of 199 patients participated in this study and 68 (34.2%) were diagnosed with delirium based on the ICDSC score. The delirium group showed a significantly higher association with prolonged length of stay in the hospital and ICU in comparison with the non-delirium group. The delirium group was associated with greater use of physical restraint. A statistically greater number of patients with pharmaceutical substance poisoning developed delirium over a short period of time than those with non-pharmaceutical substance poisoning. There was no significant difference between the two groups with respect to age, sex, past history, GCS score, vital signs, application of ventilator care and renal replacement therapy. Conclusion: The finding that the delirium group had a greater length of stay in both the hospital and the ICU is consistent with the results of previous worldwide studies of the effects of delirium on the prognosis of patients who were admitted to the ICU, suggesting the possibility for domestic application. Additionally, use of physical restraint was positively related to the incidence of delirium. Thus, interventions for minimizing the use of physical restraints and considering alternatives are needed.

• 대한지역사회영양학회지
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• 제24권3호
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• pp.197-207
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• 2019

Objectives: This study examined the characteristics and nutritional risk of the elderly who receive home delivery services. We then analyzed the effects of the characteristics of the elderly who receive the home-delivery meal service on their nutritional risk. Methods: A total of 220 respondents who receive home-delivery meal service in Seoul participated in the survey. The survey consisted of the characteristics of the elderly (health status, tooth condition, physical activity, social participation activity, depression and relationship with neighbors), nutritional risk assessment and other general matters. The data was analyzed by using the SPSS program. Cross-tabulation analysis, t-test, correlation analysis and regression analysis were all conducted. Results: 47.0% of the subjects were under 80 years old and 53.0% were over 80 years old, The nutritional risk score, as evaluated by a Nutrition Screening Initiative (NSI) checklist was 10.7 points, and the high nutrition risk group was 91.5% of the subjects. The subjective self-health status score was 2.24 points (out of a total of 5 points) and the tooth status score was 3.30 points. The physical activity level was 2.17 points for the under 80 years old group and 1.76 points for the over 80 years old, and there was a significant difference according to age (p<0.01), The higher the health status, tooth condition, physical activity and social participation activity level, the lower was the nutritional risk. Further, the higher the degree of depression, the higher was the nutritional risk. Conclusions: For the healthy life of the elderly in the community, various welfare policies should be planned to increase social participation as well as to promote physical health and reduce depression.

• 대한통합의학회지
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• 제7권3호
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• pp.51-59
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• 2019

Purpose : To evaluate the effect of comprehensive art therapy on physical function and activities of daily living in children with cerebral palsy (CP). Methods : Ten ambulant children with diplegic (n=8) or hemiplegic (n=2) CP participated in this study. All were randomly assigned to either the art therapy group (n=5) or the control group (n=5). Both groups received physical therapy based on neurodevelopmental techniques for 20 minutes a day, 1 day a week, for a period of 12 weeks. Children in the art therapy group received additional comprehensive art therapy for 70 minutes once a week for 3 months. Tests for various measurements-Motricity Index (MI) for strength, Trunk Control Test (TCT) for trunk ability, Gross Motor Function Measure (GMFM) and Gross Motor Function Classification System (GMFCS) for gross motor function, Denver Developmental Screening Test-II (DDST-II) for developmental milestones, Functional Independence Measure of Children (WeeFIM) for abilities to complete daily activities, Leg and Hand Ability Test (LHAT) for limb function-were performed before and after treatments. Results : The upper extremity and whole extremity strengths of MI, self-care and total scores of WeeFIM, and leg and arm functions of LHAT improved significantly only for individuals in the art therapy group after the art therapy (p<.05). The value of MI after treatment was at the upper extremity and whole extremity strengths the leg function of LHAT was also significantly improved compared to the control group (p<.05). Conclusion : This study revealed that comprehensive art therapy along with physiotherapy was effective in increasing upper extremity strength and leg ability in children with CP. This suggests that comprehensive art therapy may be a useful adjunctive therapy for children with CP.

• 대한통합의학회지
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• 제7권2호
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• pp.77-84
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• 2019

Purpose : Elastic taping is a therapeutic method, used for treatment of various musculoskeletal and neuromuscular deficits. However, there is limited evidence, of the effects of ankle elastic taping in neurologic patients. The purpose of this study, was to investigate the effect of elastic taping on gait, in the affected ankle area of chronic stroke patients. Methods : Subjects were randomized to receive 30 chronic stroke patients, who were 6 months old from the date of onset according to screening criteria. Group I showed ankle joint taping, and Group II had ankle muscle taping. Dynamic balance and temporal and spatial gait, were measured before taping application, and after 30 minutes of taping application. Results : Dynamic balance was measured using the Time up & Go test (TUG). There was statistically significant difference, between Group I and Group II (p<.05). There was no statistically significant difference, between Group I and Group II. Temporal and spatial gait were measured using GaitRite. In Group I, there was significant difference, before and after taping (p<.05). In Group II, there was no significant difference, before and after taping (p>.05). There was significant difference in Group I, between Group I and Group II (p<.05). Conclusion : Results suggest that intervention using elastic taping, may have a positive effect, on rehabilitation diversity and function in stroke patients. Based on this, it can be used for rehabilitation of stroke patients. Various studies on the application method, and effect of the application site as well as application time, should be continued with stroke patients.

• 한국전문물리치료학회지
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• 제30권2호
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• pp.152-159
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• 2023

Background: The gluteus medius (Gmed) plays a critical role in maintaining frontal plane stability of the pelvis during functional activities, such as one-leg lifting. Side-lying hip abduction (SHA) has been used as a dynamic test to evaluate Gmed function. However, the abduction force of the lower leg against the floor is not controlled during SHA. Therefore, hip abduction performance with contralateral adduction in the side-lying position (HAPCA) can be proposed as an alternative method to assess performance of hip abduction. If the number of HAPCA is related to the lateral pelvic shift distance, a new quantitative measurement for hip abductor function may be presented. Objects: This study aimed to investigate the relationship between the number of successful HAPCA and the lateral pelvic shift distance during one-leg lifting. Methods: Thirty healthy participants were recruited, and lateral pelvic shift distance was measured during one-leg lifting test using two-dimensional analysis. The number of successful HAPCA was counted when participants touched both target bars at the beat of a metronome. Results: There was a negative correlation between the number of HAPCA and lateral pelvic shift distance during one-leg lifting (r = -0.630, p < 0.05). The number of HAPCA accounted for 39.7% of the variance in the lateral pelvic shift distance during one-leg lifting (F = 18.454, p < 0.001). Conclusion: The number of successful HAPCA is significantly correlated with lateral pelvic shift distance during one-leg lifting. This finding suggests that HAPCA can be proposed as a new measurement for hip abductor performance and more research is needed on its relationship with hip abductor strength.

• 대한치매학회지
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• 제23권1호
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• pp.44-53
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• 2024

Background and purpose: The anti-aging standard forest healing program (ASFHP), which uses forest therapy, was reported to be effective in improving psychological, physical, and cognitive functions. However, there are several challenges to directly visiting the forest. This study aimed to investigate the impact of multi-session ASFHP with forest visit on the mental and physical health of the older people with visits to forest facilities and compared them with those of the same program conducted indoors. Methods: Individuals aged over 70 years with concerns about cognitive decline were recruited at dementia relief centers and divided into control and experimental groups. A total of 33 people were administered ASFHP under the supervision of a forest therapy instructor. The control group stayed indoors, while the experimental group visited a forest healing center and repeated the program 20 weeks. Results: The multiple-session ASFHP positively affected cognitive impairment screening test (CIST) total scores (p=0.002), memory (p=0.014), Korean version of the Repeatable Battery for the Assessment of Neuropsychological Status total scores (p<0.001), immediate recall (p=0.001), visuospatial/construction (p<0.001), language (p<0.001), forest healing standard questionnaire total scores (p=0.002), and cognitive function (p=0.019), regardless of location. The forest visits during the ASFHP showed positive effects on orientation (p=0.035), delayed recall (p=0.042), emotional stability (p=0.032), physical activity (p=0.005), and health (p=0.022). The CIST scores of the memory domain were the strongest indicator of the multiple-session ASFHP effects. Conclusions: The 20-week multi-session ASFHP with forest visit showed effects on cognitive improvement and physical and emotional stability compared to indoor education.

• Childhood Kidney Diseases
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• 제5권2호
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• pp.156-163
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• 2001

목 적 : 본 연구의 목적은 집단뇨검사의 대상으로 8세 전후의 어린이가 포함되는 것이 타당한지 또한 혈뇨 검사를 집단뇨검사에 포함시키는 것이 실효성이 있는지를 알아 보고자 하였다. 대상 및 방법 : 파주 지역 초등학생 2,804명을 대상으로 모두 3차에 걸쳐 단계적 요검사와 정밀 검사를 실시하여 단백뇨와 혈뇨의 유병율을 조사하였다. 요검사 이상자를 대상으로 정밀 검사를 시행하여 실제 신질환의 유병율을 알아보고 집단뇨검사의 유용성을 검증하였다. 결 과 : 파주 지역 초등학생 8세군에서 나타난 무증상 요검사이상 유병율은 $8.3\%$로 각각 단백뇨 $2.3\%$, 혈뇨 $5.8\%$였고 혈뇨와 단백뇨를 동시에 보인 경우는 $0.2\%$로 조사되었다. 1차 선별 검사 이상자 233명중 102명이 2차 검사에 응하여 이들 중 약 1/3인 32명이 다시 양성자로 나타났고 혈뇨가 $41.7\%$, 단백뇨가 $0\%$, 동시에 양성인 경우가 $66.7\%$로 2차 검사에 이상자로 확인되었다. 3차검사에 응한 32명중 30명은 단독 혈뇨증을 보였고 2명은 혈뇨와 단백뇨가 동시 확인되었다. 이들 단독 혈뇨증을 보인 30명 중6명은 정상으로 나타났고, 21명은 특발성 단독 현미경적 혈뇨, 나머지 3명은 요로감염증 1명, 특발성 과칼슘뇨증 1명, 단순 신낭종 1명로 확인되었다. 혈뇨와 단백뇨를 동시에 보인 2명은 만성 사구체 신염을 가지고 있는 것으로 생각되었다. 결 론 : 본 연구의 집단뇨검사에서 단백뇨와 혈뇨의 유병율 $2.3\%,\;5.8\%$로 조사되었고 이들 중 대부분이 정상으로 나타나 집단뇨검사의 특이성이 낮은 것을 알 수 있었다. 검사 대상에 8세군을 포함시키는 문제에 관해서 본 연구에서 비교적 높은 양성율을 보였다는 점을 감안하면 집단뇨검사에 8세군을 포함하는 것이 타당하다고 생각되었다.

• Nutrition Research and Practice
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• 제7권5호
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• pp.347-351
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• 2013

Food-dependent exercise-induced anaphylaxis (FDEIAn) is induced by different types and various intensities of physical activity, and is distinct from food allergies. It has been shown that consumption of allergenic food followed by exercise causes FDEIAn symptoms. Intake of allergenic food or medication before exercise is a major predisposing factor for FDEIAn. Urticaria and severe allergic reactions are general symptoms of FDEIAn. Dermatological tests and serum IgE assays are the typical prescreening methods, and have been used for several decades. However, these screening tests are not sufficient for detecting or preventing FDEIAn. It has been found that exercise may stimulate the release of mediators from IgE-dependent mast cells that can result in FDEIAn when a certain threshold level has been exceeded. Mast cell degradation might be a major factor to induce FDEIAn but this has not been determined. A number of foods have been reported to be involved in the onset of FDEIAn including wheat, eggs, chicken, shrimp, shellfish, nuts, fruits, and vegetables. It is also known that aspirin increases the occurrence of type I allergy symptoms when combined with specific foods. Moreover, high intensity and frequent exercise are more likely to provoke an attack than low intensity and less frequent exercise. In this paper, we present the current views of the pathophysiological mechanisms underlying FDEIAn within the context of exercise immunology. We also present a detailed FDEIAn definition along with etiologic factors and medical treatment for cholinergic urticaria (UC) and exercise-induced anaphylaxis (EIA).