• 제목/요약/키워드: Functional Task

검색결과 405건 처리시간 0.03초

Cherry Tomatoes Ameliorate Scopolamine-induced Amnesia in Mice

  • Choi, Won-Hee;Ahn, Ji-Yun;Kim, Su-Na;Ha, Tae-Youl
    • Preventive Nutrition and Food Science
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    • 제13권4호
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    • pp.281-285
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    • 2008
  • Cherry tomatoes are rich in antioxidants, which may protect against neurodegeneration and consequent memory loss. This study was conducted to investigate the effect of cherry tomatoes on scopolamine-induced amnesia in mice. Male ICR mice (4 weeks old) were maintained for 4 weeks on a diet containing 10 or 20% tomato powder (TP), and then administered scopolamine (1 mg/kg body weight, i.p.) 45 min before memory testing. Passive avoidance and Morris water maze testing revealed that scopolamine-induced amnesia was significantly reduced in the TP groups compared to the non TP-received (control) group. Accordingly, acetylcholinesterase activities in the serum and brain of TP groups were lower than those in the control group. These findings suggest that cherry tomatoes may be useful for the prevention of neurodegenerative diseases such as amnesia and Alzheimer's disease.

스레드를 이용한 계층적 태스크 그래프(HTG)의 복합 노드 스케쥴링 기법 (Scheduling Scheme for Compound Nodes of Hierarchical Task Graph using Thread)

  • 김현철;김효철
    • 한국정보과학회논문지:시스템및이론
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    • 제29권8호
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    • pp.445-455
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    • 2002
  • 본 논문은 공유 메모리 시스템에서 계층적 태스크 그래프(Hierarchical Task Graph, HTG)의 복합 노드 태스크들을 효율적으로 수행하기 위한 새로운 태스크 스케쥴링 기법을 소개한다. 함수 병렬성 추출을 위해 제안된 기법은 별도의 전역 스케쥴러가 필요 없이 프로세서 스스로가 스케쥴링 기능을 행하는 자동 스케쥴링이다. 제안된 스케쥴링 기법을 단일처리기 시스템을 비롯한 여러 플랫폼에 적용하기 위해 자바 스레드를 이용하여 구현하였으며, 기존의 비트 벡터 방법과 성능을 비교 분석하였다. 실험 파라메터 값을 이용한 실험 결과, 제안된 스케쥴링 기법은 수행 시간 측면에서 효율적이며 양호한 부하 균형을 유지하였다. 또한, 제안된 기법은 기존의 방법에 비해 메모리 사용량을 줄일 수 있었다.

자원봉사자의 참여 동기와 유형별 자원봉사과업만족도 및 지속의지와의 관계에 관한 연구 - 기능주의 동기 관점을 중심으로 - (A study on The Relationship Between Volunteers' Motive, Task Satisfaction and Retention Will - Functional Perspectives of Motivation -)

  • 강대선;배의식;류기형
    • 한국사회복지학
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    • 제62권4호
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    • pp.59-77
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    • 2010
  • 본 연구는 기능주의 관점에서 자원봉사자의 동기와 혜택을 부합시킬 수 있는 자원봉사과업설계 및 자원봉사자 배치에 대한 함의를 제공하는 데 연구목적을 두고 있다. 이를 위해 다중회귀분석을 실시하여 자원봉사동기가 자원봉사과업만족도 및 지속의지에 미치는 영향력에 대해 분석하였다. 분석결과 가장 중요한 자원봉사동기의 유형은 사회적 동기, 상승동기, 가치동기 순으로 나타났고, 각각의 동기는 자원봉사과업만족도 및 지속의지에 각기 차별적으로 영향을 미치는 것으로 나타났다. 이러한 조사결과에 대한 실천적 함의가 논의되었다.

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The Feasibility of Event-Related Functional Magnetic Resonance Imaging of Power Hand Grip Task for Studying the Motor System in Normal Volunteers; Comparison with Finger Tapping Task

  • Song, In-Chan;Chang, Kee-Hyun;Han, Moon-Hee
    • 대한자기공명의과학회:학술대회논문집
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    • 대한자기공명의과학회 2001년도 제6차 학술대회 초록집
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    • pp.111-111
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    • 2001
  • 목적: To evaluate the feasibility of the event-related functional MR study using power grip studying the hand motor system 대상 및 방법: Event-related functional MRI was performed on a 1.5T MR unit in seven norm volunteers (man=7, right-handedness=2, left-handedness=5, mean age: 25 years). A single-shot GRE-EPI sequence (TR/TE/flip angle: 1000ms/40ms/90, FOV = 240 mm matrix= 64$\times$64, slice thickness/gap = 5mm/0mm, 7 true axial slices) was used for functiona MR images. A flow-sensitive conventional gradient echo sequence (TR/TE/flip angl 50ms/4ms/60) was used for high-resolution anatomical images. To minimize the gross hea motion, neck-holders (MJ-200, USA) were used. A series of MR images were obtained in axial planes covering motor areas. To exclude motion-corrupted images, all MR images wer surveyed in a movie procedure and evaluated using the estimation of center of mass of ima signal intensities. Power grip task consisted of the powerful grip of all right fingers and hand movement ta used very fast right finger tapping at a speed of 3 per 1 second. All tasks were visual-guid by LCD projector (SHARP, Japan). Two tasks consisted of 134 phases including 7 activatio and 8 rest periods. Active stimulations were performed during 2 seconds and rest period were 15 seconds and total scan time per one task was 2 min 14 sec. Statistical maps we obtained using cross-correlation method. Reference vector was time-shifted by 4 seconds an Gaussian convolution with a FWHM of 4 seconds was applied to it. The threshold in p val for the activation sites was set to be 0.001. All mapping procedures were peformed usin homemade program an IDL (Research Systems Inc., USA) platform. We evaluated the activation patterns of the motor system of power grip compared to hand movement in t event-related functional MRI.

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전남대학교 기록관리의 단위업무와 조직기능 분류에 대한 분석 (An Analysis of Unit Task and Structural Function for Records Management at Chonnam National University)

  • 유완이;이명규
    • 한국기록관리학회지
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    • 제13권2호
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    • pp.179-199
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    • 2013
  • 이 연구는 대학기록의 효율적 관리와 편리한 이용을 위해 구축되어 있는 기록관리체계를 조사하여 분석하였다. 전남대학교의 기록물 현황, 단위업무, 기능과 조직에 대해 분석하였다. 그 결과 전남대학교 단위업무는 127개 처리과에 1,625개의 단위업무로 이루어진다. 교육과 관련된 단위업무가 85.91%를 차지하고 있다. 문제점으로는 단위업무 불균형적으로 편성되어 있다. 특정 분야에 단위업무가 너무 많거나 적은 것은 업무 분석 및 분류에 있어서 문제점을 내포하고 있다고 할 수 있다. 그리고 대학기능 분류가 불균형적으로 편성되어 있다. 대학에서 연구 분야에 대한 기능 분류는 적은 반면, 행정 분야에 대한 기능 분류가 세분화 되어 있다. 조직에 대한 기능과 업무가 적절하게 편성되어야 효율적인 기록물관리가 될 것이다.

함평사건희생자유족회의 소장 기록물 분류표 개발에 관한 연구 (A Study on the Development of the Classification Table of the Records of the Association for the Bereaved Families of the Hampyeong Massacre Victims)

  • 김유선;이명규
    • 한국기록관리학회지
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    • 제18권1호
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    • pp.155-175
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    • 2018
  • 이 연구의 목적은 함평사건희생자유족회의 소장 기록물에 대한 분류체계를 마련하는 데에 있다. 이에 따라 기록물의 맥락을 기능적 출처주의를 통해 구현하며, 기록물을 효과적으로 활용할 수 있도록 유형별 특성과 생산시기별 특성을 반영한 분류표를 제시하였다. 기능분류체계 개발 방법론인 DIRKS를 사용하여 함평사건희생자유족회의 업무분석을 수행함으로써, 업무기능-업무활동-처리행위로 이어지는 업무분류표를 도출한다. 함평사건희생자유족회 소장 기록물을 유형과 생산시기별 특성을 고려하여 그 범주를 결정한다. 기록물 맵핑은 업무분류표에 해당하는 업무분류체계에 1차적으로 실행하고, 2차적으로는 업무분류에 유형분류와 시대분류를 접목한 다중분류체계에 맵핑한다. 업무주제-업무활동-처리행위-유형-시대의 형태로 이어지는 기록물 분류표를 도출한다.

과제 지향적 기능 훈련이 뇌졸중 환자의 균형에 미치는 영향 (The Effects of Task-Oriented Functional Training on Standing Balance in Stroke Patients)

  • 김재욱;김수민;박래준
    • The Journal of Korean Physical Therapy
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    • 제15권4호
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    • pp.65-81
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    • 2003
  • The purpose of this study was to investigate the balance of stroke patient appling Task-Oriented Functional training program. Sixteen subjects were recruited from KeiMyung university Dongsan Medical Center inpatient satisfying requirement for this study. They were divided into Task-Oriented Functional training group and Conventional therapy group. They were measured by Sensory organization test and Motor control test items using EquiTest Version 8.0 machine before and after the test. The result of this study were to follow: 1. In Sensory organization test, there were no significant differences in static eguibrium score in both groups(p<.05). 2. In Sensory organization test, there were significant differences in dynamic eguibrium score in both groups(p<.05). 3. In Motor control test, there were significant differences in both groups(p<.05). 4. In exercise group, there were no significant differences in static Sensory organization test(p<.05). 5. In exercise group, there were significant differences in dynamic Sensory organization test(p<.05). 6. In exercise group, there were significant differences in Motor control test(p<.05). 7. In control group, there were no significant differences in static Sensory organization test(p<.05). 8. In control group, there were no significant differences in dynamic Sensory organization test(p<.05). 9. In control group, there were no significant differences in Motor control test(p<.05).

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Effects of Task-Specific Obstacle Crossing Training on Functional Gait Capability in Patients with Cerebellar Ataxia: Feasibility Study

  • Park, Jin-Hoon
    • The Journal of Korean Physical Therapy
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    • 제27권2호
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    • pp.112-117
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    • 2015
  • Purpose: The purpose of this study was to examine the effects of a task-specific obstacle crossing rehabilitation program on functional gait ability in patients with cerebellar ataxia. Overall, we sought to provide ataxia-specific locomotor rehabilitation guidelines for use in clinical practice based on quantitative evidence using relevant analysis of gait kinematics including valid clinical tests. Methods: Patients with cerebellar disease (n=13) participated in obstacle crossing training focusing on maintenance of dynamic balance and posture, stable transferring of body weight, and production of coordinated limb movements for 8 weeks, 2 times per week, 90 minutes per session. Throughout the training of body weight transfer, the instructions emphasized conscious perception and control of the center of body stability, trunk and limb alignment, and stepping kinematics during the practice of each walking phase. Results: According to the results, compared with pre-training data, foot clearance, pre-&post-obstacle distance, delay time, and total obstacle crossing time were increased after intervention. In addition, body COM measures indicated that body sway and movement variability, therefore posture stability during obstacle crossing, showed improvement after training. Based on these results, body sway was reduced and stepping pattern became more consistent during obstacle crossing gait after participation in patients with cerebellar ataxia. Conclusion: Findings of this study suggest that task-relevant obstacle crossing training may have a beneficial effect on recovery of functional gait ability in patients with cerebellar disease.

Effects of ball kicking dual task training on gait performance and balance in individuals with chronic hemiparetic stroke

  • Kim, Minseong;Shim, Jaehun;Yu, Kyunghoon;Kim, Jiwon
    • Physical Therapy Rehabilitation Science
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    • 제5권4호
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    • pp.170-176
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    • 2016
  • Objective: The purpose of this study was to compare the effect of ball kicking dual task gait training with the addition of a cognitive task with general treadmill gait training (TGT) on gait speed, gait endurance, functional gait, balance and balance confidence in patients with chronic hemiparetic stroke. Design: Randomized controlled trial. Methods: Fourteen stroke patients who volunteered to participate in this study were randomly divided into two groups with seven patients in each group: ball kicking dual task training (DTT) group and TGT group. The DTT group received ball kicking DTT with cognitive tasks consisted of three stages and the TGT group received TGT using normal walking speed, respectively, for 30 minutes per day 3 days per week for 4 weeks. Outcome assessments were made with the 10-meter walking test (10MWT), 6-minute walking test (6MWT), functional gait assessment (FGA), Berg balance scale (BBS), timed up and go test (TUG), and the activities-specific balance confidence (ABC) scale. Results: The DTT group showed more significant improvement in the 10MWT, 6MWT, FGA, BBS, TUG, and ABC than the TGT group (p<0.05). In addition, within groups comparison showed significant improvement in all variables (p<0.05). Conclusions: The findings suggest that both ball kicking dual task gait training and TGT improve gait performance and balance in patients with chronic hemiparetic stroke. However, ball kicking dual task gait training results showed more favorable outcomes than TGT for chronic hemiparetic stoke patients.

비기능적 요구사항 관점의 소형 무인지상차량 성능 향상 연구 (A Study on Efficiency Improvement for SUGV with a Practical View Point of Non-Functional Requirements)

  • 서진원;김영철;김장한
    • 한국군사과학기술학회지
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    • 제11권4호
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    • pp.59-67
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    • 2008
  • In the next near future, the human would like to use the small unmanned ground vehicle(SUGV) on the diverse fields. Specially the world of today is tried to apply with operating the task on very difficult working environments such as some dangerous or unreachable area. To work this task, this vehicle should be guaranteed with the high level of reliability, safety, and performance. In this paper, we propose to focus on not only the functional requirements, but also the non-functional requirements based on software architecture at the design stage for developing the embedded system. Through focusing on the non-functional requirements on this software architecture, we can obtain the design goal of the target system and also show the enhancement of reliability, safety and performance with 'Vtune' performance analysis tool.