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        검색결과 55

        21.
        2014.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        목적 : 본 연구는 불안장애 아동의 감각자극에 따른 생리학적 반응 특성을 알아보고자 하였다. 연구방법 : 논문 검색을 위해 사용된 데이터베이스는 Cochrane library, EBSCOhost, Embase, ScienceDirect, Medline, PsycINFO, Pubmed, Social Sciences Citation Index이었다. 검색대상은 2000년 1월부터 2013년 5월까지의 국외 학회지에 개제된 논문으로 하였다. 검색어는“generalized anxiety disorder, specific phobias, panic disorder, social anxiety disorder, obsessive-compulsive disorder, posttraumatic stress disorder, separation anxiety, children, pediatric, adolescent, sensory stimuli, sensory response, startle reflex, startle reactivity, auditory, olfactory, visual, vestibular, proprioceptive, tactile, taste, skin conductance response, galvanic skin response, heart rate, beats per minute, heart rate variability, vasomotor activity, electromyography”이었다. 최종적으로 분석에 사용된 논문은 5개이었으며, 연구의 근거 수준은 모두 수준Ⅱ이었다. 결과 : 불안장애 아동은 정상아동에 비해 감각 자극에 대한 각성이 높게 나타났다. 감각자극에 대해 반응 진폭은 불안장애 아동이 정상아동에 비해 크게 나타났으며, 반응 잠재기는 짧게 나타났다. 또한 불안장애 아동은 감각 자극에 대해 지연된 습관화의 특징을 보였다. 결론 : 불안장애 아동은 정상 아동과 다른 생리학적 반응을 보였다. 앞으로 불안장애 아동의 생리학적 반응을 측정하는데 있어 동일한 감각계에 대해 같은 방법으로 연구되어야 할 것이다.
        4,200원
        22.
        2014.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        To describe the macroscopic anatomy and ovarian-physiological difference of the genital organs of the female Korean water deer, organs from captured animals in a wild area of Korea were dissected. The ovary of estrus group was about 1.10 ± 0.02 mm long and weighed about 0.50 ± 0.02 g. And pregnant group was about 1.3 ± 0.10 mm long and weighed about 0.40 ± 0.05 g. And the crowns of corpora lutea were found in the estrus group, but we couldn't find crowns at the pregnant group. Especially, the estrus ovaries tended (p=0.04) to be heavier than the ovaries during pregnancy. The MMP-9 activity was higher at the Graafian follicles of pregnant group than that in estrus group. However, with regard to follicles of estrus group, MMP-2 level was higher than that in pregnant group. Furthermore, apoptosis detection marker (Casp-3) was highly expressed in Graafian follicle of the pregnant group and the corpora lutea of estrus group. Thus, the differential expression of MMPs observed in this study suggests that the reflected the mechanisms underlying of monovulatory in estrus and/or pregnancy. Our results may be very useful as it provides with information that may be considered for the development of reproductive biotechnologies in endangered animals.
        4,000원
        23.
        2013.04 구독 인증기관·개인회원 무료
        One of the overlooked points in mosquito blood feeding research is a final step before blood feeding such as finding a best position of blood feeding site and blood vessels underneath. How mosquitoes detect blood vessels especially using chemosensory organs prior to a final stage of blood feeding is totally unknown. Here we provide the anatomical and chemosensory evidence that a piecing structure of the mouthpart of the mosquitoes is an essential apparatus for the penultimate stage in blood feeding in mosquitoes. Indeed, mosquito mouthparts possesses a set of olfactory receptor neurons in sensory hairs, which are sensitive to volatile compounds present in host blood. Furthermore, the inhibition of gene expression of these odorant receptors delayed blood feeding of the mosquito from host animals. Taken together, these results identify that chemosensory perception in mouthpart is involved in mosquito blood feeding behaviors, which in turn allows mosquito to locate a feeding site more precisely.
        24.
        2013.01 KCI 등재 구독 인증기관 무료, 개인회원 유료
        생리학적 관점에서 볼 때 글쓰기 행위는 인간의 생리적 활동 중 하나이며, 심리 가 투사된 활동 중 하나이다. 이러한 투사활동의 생리적 기초는 글쓰기 지도라는 객관적 이유를 동반한다. 본고는 글쓰기와 생리에 관련된 신경조직, 시지각, 손의 생리, 정서생리, 응용 생리, 글쓰기의 생리적 연구 방법 등, 6개항의 문제를 본격적 으로 탐구하여 보았다.
        5,800원
        25.
        2011.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        화이트 클로버에서 마이코라이자 접종이 가뭄스트레스와 관련된 생리학적 요인들을 조사하기 위하여, 마이코라이자 접종 (AM) 또는 비접종구에서 정상관수 (WW) 또는 가뭄 스트레스 처리 (DS)하여 7일동안 주기적으로 잎 수분포텐셜, 상대수분함량, 건물중, 광합성효율, 증산, 기공전도성, 프롤린 및 암모니아 함량을 각각 측정하였다. 모든 조사항목에서 정상적인 관수조건 (대조구)에서는 전 시험기간 중 변화가 매우 적었으며, 마이코라이자 접종에 의한 변화도 매
        4,000원
        29.
        2004.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        스트로보광에 대한 어류의 전기생리학적 반응을 조사하기 위하여, 전갱이에 각각 4단계의 섬광빈도(1.7~25Hz)와 강도(56~415lx·s)로 광자극을 주어, 그에 대한 망막활동전위 (ERG)를 조사한 결과는 다음과 같다. 1. ERG 진폭은 스트로보광을 조사한 순간에 최대가 되고, 그 후 가장 작았다가 점차 커져서 안정되는 경향을 보였다. 2. 섬광빈도에 따른 ERG 진폭은 광자극 후 약 12~17분부터 안정되는 경향을 보였다. 3. 전갱이가 받는 자극량은 섬광빈도 10Hz 에서 가장 많았고, 스트로보광 강도가 약해짐에 따라 감소하였다. 4. ERG 진폭변화는 10Hz가 가장 컸고, 스트로보광의 강도가 감소함에 따라 적었다.
        4,000원
        30.
        2003.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구에서는 스트로보광의 자극효과를 검토할 목적으로 스트로보광 강도에 따른 전갱이의 반응을 심박수의 변화로 조사하였다. 실험은 10Hz의 스트로보광강도(75 lx·s)를 1/2, 1/5, 1/15로 빛의 세기를 감소시켜, 4단계의 강도별로 심박수를 자극 전 10분간, 자극 중 30분간, 자극 후 20분간 합계 60분간을 2시간마다 3회 연속해서 측정하였다. 그 결과, 스트로보광자극 중의 심박수 증가와 자극 종료직후에 일시적으로 현저한 심박수 감소가 있었다. 스트로보광 자극효과는 자극강도의 감광에 따라 감소하였다. 반복실험에 의한 자극효과는 75 lx·s의 강도보다 약한 스크로보광 강도에서는 현저하게 나타나지 않았다.
        4,000원
        35.
        2002.02 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Physiological Cost Index (PCI) of walking has been widely used to predict oxygen consumption in healthy subjects or patients. The purpose of this study was to evaluate the predictability of physiological cost index of walking for the amount of exercise and cardiac function. Walking exercise was conducted in 67 healthy children (age 4-12) with a self-selected comfortable walking speed on the level surface. Walking speed was calculated, and heart rate was measured before and immediately after the walking. PCI was calculated for statistical analysis. The results were as follows; 1) The walking speed tends to increase and PCI of walking tends to decrease with age. There was significant difference in walking speed and PCI of walking among three age groups (p<.05). The change of walking heart rate tends to decrease with age, however, there was no significant difference among three age groups. 2) Linear regression equation between walking speed and age was 'Y (walking speed) = 2.124X (age) + 48.286' (=.337), (p=.00). 3) The walking heart rate tends to decrease with age. Linear regression equation between walking heart rate and age was 'Y (walking heart rate) = 143.346 - 2.63X (age)' (=.3425), (p=.00). 4) The walking heart rate decreased as body surface area (BSA) increased. Linear regression equation between walking heart rate and BSA was 'Y (walking heart rate) = 149.830 - 27.115X (BSA)' (=.3066), (p=.00). In conclusion, these equations and PCI could be useful to quantify the variation of energy expenditure of children with pathological gait when compared with age-matched healthy children.
        4,000원
        36.
        2000.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Physiological Cost Index (PCI) of walking has been widely used to predict oxygen consumption in healthy subjects or patients. The purposes of this study were to evaluate the predictability of physiological cost index of upper extremity exercise with a sander for the amount of exercise and cardiac function and to find out most efficient speed of exercise. Upper extremity exercise was conducted in 67 healthy children (age 4 -12) for 2 minutes with a sander in two different speeds, such as self selected comfortable and self selected fast speeds. Speed of sander was calculated, and heart rate were measured before and immediately after the exercise. Physiological Cost Index (PCI) of upper extremity exercise was calculated for statistical analysis. The result were as follows; 1. Comfortable and fast speeds of the sander went up according to the increase of age, sander PCI during exercise by it, decreased as the age increased with significant difference in each group (p=0.00). The heart rate change during exercising by it, there was no significant difference. 2. The heart rate change during the exercise by sander increased as the speed of sander increased. Linear regression equation between the heart rate change during the exercise by sander and the speed of sander were 'Y (the heart rate change by sander) = 0.332X (the speed of sander) + 12.731' (R²= 0.154). Stepwise regression showed the speed of sander affected the change of heart rate positively, and the age affected negatively (R²= 0.242, p = 0.00). 3. The PCI during the exercise by sander decreased as the speed of sander increased. Linear regression equation between the PCI during the exercise by the sander and the speed of sander were 'Y (the PCI by sander) = -0.00495X (the speed of sander) + 2.091'(R²= 0.267), and statistic significant was recognized (p = 0.00). 4. The speed of exercise by sander it increased as the age increased. Linear regression equation between the speed of the sander and the age were 'Y (the speed of sander) = 2.481X (the age) -0.893(R²= 0.452), and statistic significant was recognized(p = 0.00). 5. The reliability analysis for the method of examining each PCI, showed high reliability coefficients and the value of alpha was 0.9337. In conclusion, PCI of the upper extremity exercise with a sander could be thought to predict the energy consumption from the speed of sander as there was a linear relationship between the speed of sander exercise and heart rate change with exercise. PCI of the upper extremity exercise with the self selected fast speed was most efficient. Further study with oxygen consumption analysis is recommended to apply PCI in upper extremities in patients with different pathologies in motion.
        4,500원
        37.
        1999.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study focused how to show physiological responses comparing exercise group and non exercise group for progressive maximal wheelchair ergometer exercise loading in complete paraplegia. It also examined the various factors which would be influenced physiological responses. Sixteen subjects have been investigated in this study, and the subjects are divided into two groups as follows: 1) exercise group (7 subjects) 2) non exercise group (9 subjects). Each test was terminated by physical exhaustion and/or an inability to maintain a flywheel velocity. The results were as follows: 1) No difference was noted in pulmonary function test between two groups. 2) Emax value during maximal exercise was significantly different between the groups (p<0.05). The mean Emax of exercise group was , non exercise group was . 3) () value during maximal exercise was significantly different between the groups (p<0.05). The mean () of exercise group was , non exercise group was . 4) max(ml/kg/min) value during maximal exercise was significantly different between the groups (p<0.05). The mean () of exercise group was , non exercise group was . 5) Maximal heart rate(HRmax) value during maximal exercise was significantly different between the groups (p<0.05). The mean HRmax of exercise group was 180.43 beats/min, non exercise group was 175.00 beats/min. 6) value during maximal exercise was not significantly different between the groups (p>0.05). The mean of exercise group was , non exercise group was . Considering the results which explore the exercise group with paraplegia has shown the maximal aerobic power compared with non exercise group, regular and consistent physical training is highly assumed as a main factor to improve cardiopulmonary fitness.
        4,200원
        38.
        1999.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        한려해상국립공원 남해도지구에 위치한 금산의 등산로를 대상으로 하여 등산로에 설치된 계단의 물리적 특성을 조사한 결과, 등산로 총 연장 2,126m 중에 계단이 설치된 구간은 15개 구간이며, 총 길이는 1,000.4m로 나타났다. 대다수의 등산로 계단구역의 물매는 20~40%로 나타났으나, 11번 구간, 12번 구간과 같이 경사도 45.7%, 58.4%의 계단이 268.5m, 188.6m인 구간과 13번 구간과 같이 물매가 67.8%의 급경사 등산로 구간도 설치되어 있었다. 계단형 등산로에서 등산시 탐방객이 느끼는 운동강도를 조사한 결과, 전체 구간에 있어서 등산시의 심박수는 약 104~184회/분으로 나타났으며, 계단형 등산로 구간 중 11번 구간과 12번 구간, 그리고 13번 구간의 등산시 심박수 증가율, 운동강도지수, %HRmax는 각각 166.5%, 89.1%, 92.9%와 167.4%, 89.6%, 93.2%, 그리고 157.8%, 84.5%, 89.9%로 조사되었다.
        4,000원
        39.
        1996.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This paper reviews physiological changes in the nervous system of patients with hemiparesis that may contribute to muscle weakness. The discussion includes the important role that alterations in the physiology of motor units, notably changes in firing rates and muscle fiber atrophy, play in the manifestation of muscle weakeness. This role is compared with the lesser role that spasticity of the antagonist muscle group appears to play in determining the weakness of agonist muscles. The contribution of other factors that result in mechanical restraint of the agonist by the antagonist is discussed relative to muscle weakness in patients with hemiparesis. More studies on patients with hemiparesis are required to assess what role muscle strength training should play in rehabiliting patients after a stroke.
        4,200원
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