• 천문학회보
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• 제45권1호
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• pp.65.2-65.2
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• 2020

We present NIR spectroscopic data of young radio quasars obtained from Flamingos-2 (F2) at Gemini-South. The targets are originally selected from Wide-Field Infrared Survey Explorer survey in combination with radio survey data, such as FIRST and NVSS. Our goal is to find observational evidence of jet-driven outflows, which is expected to be present in young luminous quasars from the theoretical studies. While 16 targets were observed with F2, narrow emission lines ([O III] or Hα) were detected in 7 targets. FWHM of the emission lines (up to 2500 km/s) were remarkably broad compared to ordinary quasars, revealing the presence of strong outflows. The black hole mass estimated from Eddington limit ranges from ~108 to 109 solar mass, indicating that the target quasars are likely to be progenitors of massive galaxies. Finally, we present the comparisons between the outflow velocity and the physical properties of radio jets derived from the VLA radio imaging data, in order to investigate the physical connection between the ionized outflows and radio jets.

• Nuclear Engineering and Technology
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• 제54권1호
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• pp.234-243
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• 2022

This study aims to characterize the irradiated RBMK-1500 nuclear graphite in terms of both structural and radiological properties. The experimental results of morphological and structural analysis of the irradiated graphite samples by using SEM, Raman spectroscopy as well as the theoretical evaluation of primary displacement damage are presented. Moreover, the experimental and theoretical evaluation of the neutron flux is provided and the presence of several γ emitters in the analyzed graphite samples is assessed. Furthermore, the improved version of rapid analysis method for ¹⁴C activity determination is applied and the experimentally obtained results are compared with calculated ones. Results indicate that structural changes are uniform enough in all the analyzed samples. However, the distribution of radionuclides is non-homogeneous in the irradiated RBMK-1500 reactor graphite matrix. The comprehensive understanding of both structural and radiological characteristics of nuclear graphite is very important when dealing with decision about irradiated graphite waste management strategy or treatment options prior to its final disposal.

• 치위생과학회지
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• 제10권2호
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• pp.109-116
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• 2010

본 연구는 2006년과 2007년 경상북도 성주군과 영양군 내에 거주하는 만 65세 이상 노인들을 대상으로 노인들의 인구사회학적 특성에 구강건강과 관련된 삶의 질 증진에 관여하는 요인들을 분석하고자 하였다. 이를 위하여 경상북도 지역 내 2개군 지역을 선정하여 지역 내 만 65세 이상 노인들을 대상으로 구강건강영향지수(Oral Health Impact Profile: OHIP-14)를 활용하여 구강건강과 관련된 삶의 질을 설문조사하였다. 최종 수합된 546명의 자료를 분석한 결과 다음과 같은 결론을 얻었다. 1. 조사대상자의 구강건강과 관련된 삶의 질의 각 세부요인 중 사회적 능력저하는 평균 4.61점, 정신적 능력저하는 평균 4.53점, 신체적 능력저하는 평균 3.99점, 정신적 불편감은 평균 3.98점, 사회적 불리는 평균 3.82점, 신체적 동통은 평균 3.77점, 그리고 기능적 제한은 평균 3.44점으로 조사되었다. 2. 구강건강과 관련된 삶의 질 중 기능적 제한은 조사된 특성 중 성별, 교육수준 및 직업유무에 따라 통계적으로 유의한 차이가 있었고 신체적 동통은 조사된 특성 중 성별, 교육수준, 동거가족에 따라 통계적으로 유의하였으며, 정신적 불편감은 조사된 특성 중 성별, 교육수준, 직업유무 따라 통계적으로 유의한 차이가 있었고, 신체적 능력저하는 조사된 특성 중 성별, 교육수준, 월수입에 따른 차이가 통계적으로 유의하였다. 또한 정신적 능력저하는 조사된 특성 중 성별, 교육수준에 따라 통계적으로 유의한 차이가 있었고, 사회적 능력저하는 조사된 특성 중 교육수준, 직업유무, 월수입에 따른 차이가 통계적으로 유의하였으며, 사회적 불리는 조사된 특성 중 연령, 직업유무, 월수입에 따라 통계적으로 유의한 차이가 있었다. 3. 조사대상자의 구강건강과 관련된 삶의 질 총합은 조사된 특성 중 성별, 교육수준, 직업유무에 따른 차이가 통계적으로 유의하였다. 따라서 본 연구에서는 우리나라 일부 농촌노인들의 구강건강 영향지수를 측정하고 각 세부항목에 영향을 주는 요인들을 조사하였다. 구강건강 영향지수에 대한 세부요인 별 관련성을 볼 때, 구강건강과 삶의 질은 밀접한 관련이 있는 것으로 나타났다. 이에 노인들의 구강건강관련 삶의 질 향상을 위해서는 다양한 측면에서 노인들의 복지정책과 효과적인 노인건강 관리가 이루어져야한다고 본다. 또한 구강건강 영향지수와 관련된 다양한 연구가 지속적으로 필요하리라 사료된다.

• The Journal of Korean Physical Therapy
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• 제15권4호
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• pp.34-45
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• 2003

A 'pusher syndrome' encompassing postural imbalance and hemi-neglect is believed to aggravate the prognosis of stroke patients. The patients with pusher syndrome show a particular posture that pushing away from the unaffected side of the body. The objective of this study was to investigate associated proprioception, associated neuro-psychological symptoms and characteristics of functional outcome with and without pusher syndrome. The subjects of this study were 58 acute stroke patients who been rehabilitated at two university hospitals in Seoul and Buchun. Data were collected using proprioception test and line bisection test. The ability of ADL was assessed by the Modified Barthel Index, transfer by the Functional Independence Measure, and balance by the Modified Motor Assessment Scale. The results were that significant difference was found in the presence of proprioception, in the incidence of hemineglect and anosognosia, and in the score of ADL, transfer and balance between patients with and without pusher syndrome. Patients without pusher syndrome gained more motor score than patients with pusher syndrome. From improvement of view, patients with pusher syndrome gained the lowest score in ability of transfer. The finding suggest that the patients with pusher syndrome is a poorer functional outcome, be related to proprioception, hemineglect and anosognosia.

• 대한물리의학회지
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• 제10권1호
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• pp.1-7
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• 2015

PURPOSE: The aim of this study was to investigate the effects of distal movement on shoulder muscle activation during diagonal pattern of exercises. METHODS: Seventeen healthy male participants volunteered to participate. Five muscles of shoulder were investigated during standing performance of diagonal shoulder exercises with and without visual trace. Two patterns of the diagonal exercises were used as diagonal 1 flexion and extension (D1F-E), and diagonal 2 flexion and extension (D2F-E). Two way repeated measures analysis of variance was used, which the factor was the presence of distal movement and exercise variations. RESULTS: The average muscle activity values of the lower trapezius and anterior deltoid are higher with the D2F-E, compared to the D1F-E (p<.05). The distal movement effect was observed within included all muscles except the lower trapezius, which the values are significantly greater in exercise with distal movement (P<.05). All significant increase of the muscles during the exercise with distal movement condition showed over 0.9 for the observed power in present study. CONCLUSION: Present result suggested that the diagonal pattern of exercise with distal movement has additional advantages of activating the scapulothoracic muscle as well as glenohumeral muscles. In addition, the D2F-E exercise pattern is effective for activating lower trapezius and anterior deltoid muscles.

• 상하수도학회지
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• 제27권6호
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• pp.723-730
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• 2013

Due to the event of hazardous chemical injection into a water storage tank in Hongseong, Chungcheongnam-do in 2012, the Korean Ministry of Environment has revised the enforcement rules of the Water Supply and Waterworks Installation Act to install surveillance equipments such as closed-circuit television(CCTV). However, the enforcement rules still do not provide concrete provision for installation of physical security equipments. Thus we studied vulnerability of small-scale water supplies in Korea and developed guidelines for the physical security system of the facilities. The guidelines include selection and recommendation of the physical security approaches and measures to detect, delay and response to the presence of an intruder in small-scale water supplies. The security features include protection utilities(e.g., fencing and fence topping), exterior intrusion detectors and alarms, locks and padlocks, surveillance utilities(e.g., CCTV), and others.

• 대한물리치료과학회지
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• 제18권3호
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• pp.33-39
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• 2011

Background : The purpose of this study was to apply cervical orthosis for temporal parameters of gait was to evaluate the effect. Methods : Seven normal adults participated in this study. Before and after applying a cervical orthosis compared to gait. Outcome measure were: general characteristics, temporal parameters of gait. General chacteristics included age, gender, height, weight. Temporal parameters included the Velocity cycle, Stride length, Step length, Cadence cycle, Initial double support time. Temporal parameters of gait, using the motion analysis system for cervical orthosis were evaluated before and after applying. The data was analyzed using SPSS 12.0 software and the Wilcoxon's signed-ranks test. Results : Velocity cycle and Step length were no significant differences(p>0.05). But Stride length, Cadence cycle, Initial double support time were significant(p<0.05). After apply Cervical orthosis in gait, Stride length and Initial double support time was decreased and Cadence cycle was increased. Conclusion : Changes in temporal of temporal parameters of gait was apply a cervical orthosis with the limitations of vision due to take effect. Therefore, Cervical orthosis does not interfere with the normal gait pattern by limiting the Range of Motion so that we consider to apply.

• BMB Reports
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• 제37권4호
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• pp.416-421
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• 2004

The antioxidant activities of NADH and of its analogue, 1,4-dihydro-2,6-dimethyl-3,5-dicarbethoxy-pyridine ($PyH_2$), were evaluated in vitro. NADH was found to be oxidized by the peroxyl radical derived from 2,2-azobis-(2-amidinopropane) dihydrochloride (AAPH) decomposition, in a pH-dependent manner. Both NADH and $PyH_2$ inhibited the peroxidation of egg yolk lecithin (EYL) liposomes, although $PyH_2$ was more effective than NADH when 2,2'-azobis-4-methoxy-2,4-dimethyl-valeronitrile (methoxy-AMVN) was employed to induce EYL liposome peroxidation. The antioxidant activities of NADH and $PyH_2$ were also evaluated by measuring their influences on 1,3-diphenylisobenzofuran (DPBF) fluorescence decay in the presence of peroxyl radicals. NADH and $PyH_2$ were much more effective at inhibiting DPBF quenching in Triton X-100 micelles than in liposomes. These results indicate that NADH can inhibit lipid peroxidation despite being hydrophilic. Nevertheless, membrane penetration is an important factor and limits its antioxidant activity.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제26권4호
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• pp.29-38
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• 2020

Purpose: The first thing to be done in promoting community care is local diagnosis. Therefore, this study attempted to derive the physical infrastructure to be diagnosed, and to develop diagnostic items and diagnostic indicators applicable to this. Methods:: First, the physical infrastructure related to the community care is derived. And the diagnosis items are derived using the checklist of 'community support and health services' in the WHO Guide for Global age-friendly cities. Next, by analyzing previous studies, we develop diagnostic indicators for each diagnostic item and explore their applicability. Results: As a result of deriving the physical infrastructure for each area of housing, health service, and nursing care for community care, 22 facilities were derived for 9 types. Diagnosis items for the facilities are 1)regional equity, 2)proximity between facilities, 3)transportation access, 4)regional use, 5)barrier-free design, 6)diversity of facilities, and a total of 14 diagnostic indicators was derived. We reviewed and suggested the applicability of diagnostic items and indicators by each physical infrastructure. Implications: For the realization of community care, local diagnosis should not be limited to sim- ply grasping the presence or absence of facilities and the total amount. Instead it should strengthen capabilities by conducting diagnosis to understand the performance of facilities.

• Journal of Korean Neurosurgical Society
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• 제64권2호
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• pp.255-260
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• 2021

Objective : We aimed to investigate the presence of brachial plexus injury (BPI) in traumatic brain injury (TBI) patients and to draw attention to BPI, which can be overlooked by physicians in TBI patients. Methods : The study was designed retrospectively by examining the files of 58 patients with moderate to severe TBI to investigate coexistence of TBI and BPI. Results : BPI was detected in six of 58 TBI patients (10.3%). BPI was detected after an average 116 days from the initial injury. Three patients had lower trunk BPI and three patients had panplexopathy. Conclusion : Diagnosis of BPI in patients with TBI is delayed in the acute period of injury. The clinicians should keep in mind that BPIs may occur and remain undiagnosed in patients with TBI.