• Title/Summary/Keyword: Physiological function

Search Result 1,219, Processing Time 0.029 seconds

Nutritional Role of Dietary Fiber-Recent Knowledge on Dietary fiber (식이섬유의 주요기능)

  • Tsuji, Keisuke
    • Journal of Food Hygiene and Safety
    • /
    • v.7 no.4
    • /
    • pp.173-176
    • /
    • 1992
  • Non-absorbable substances in foods, for instance dietary fiber had been previously known as a non-nutritive part of foods. Recently , such a category has been gradually changed to as one of nutrients, As a main reason, dietary fibers includes many poly-or oligo-saccharides, which as resistant to alimentary hydrolyzing enzyme, However, parts of them are fermented by intestinal micro-organism to produce short chain fatty acids and so on. They are absorbed and utilized by human being. Now, it may be naturally accepted that dietary fiber is a kind of nutrients. Dietary fiber exerts many useful functions on body. They are classified into three large function , physicochemical function, physiological function and biological function. The last function of dietary fiber will be presented in the symphosium. Dietary fiber has several kinds of nutritional properties. One is energy source. Short chain fatty acids(SCFA) are oxidized and produced energy in body. Dietary fiber has not high energy, but not zero kilocalories. Another one is to be a constitutional component of higher animals' tissue. Last but most important one is physiological functions of dietary fiber.

  • PDF

Development of Arousal Level Estimation Algorithm by Membership Function and Dempster-Shafer′s Rule of Combination in Evidence (소속함수와 Dempster-Shafer 증거합 법칙을 이용한 긴장도 평가 알고리즘 개발)

  • 정순철
    • Science of Emotion and Sensibility
    • /
    • v.5 no.1
    • /
    • pp.17-24
    • /
    • 2002
  • This research was the first step to develop Expert System for Evaluation of Human Sensibility, where human sensibility can be inferred from objective physiological signals. The study aim was to develop an algorithm in which human arousal level can be judged using measured physiological signals. Fuzzy theory was applied for mathematical handling of the ambiguity related to evaluation of human sensibility, and the degree of belonging to a certain sensibility dimension was quantified by membership function through which the sensibility evaluation was able to be done. Determining membership function was achieved using results from a physiological signal database of arousal/relaxation that was generated from imagination. To induce one final result (arousal level) based on measuring the results of more than 2 physiological signals and the membership function of each physiological signal, Dempster-Shafer's Rule of Combination in Evidence was applied, through which the final arousal level was inferred.

  • PDF

Development of an Automatic Expert System for Human Sensibility Evaluation based on Physiological Signal (생리신호를 기반으로 한 자동 감성 평가 전문가 시스템의 개발)

  • Jeong, Sun-Cheol;Lee, Bong-Su;Min, Byeong-Chan
    • Journal of the Ergonomics Society of Korea
    • /
    • v.23 no.1
    • /
    • pp.1-12
    • /
    • 2004
  • The purpose of this study was to develop an automatic expert system for the evaluation of human sensibility, where human sensibility can be inferred from objective physiological signals. The study aim was also to develop an algorithm in which human arousal and pleasant level can be judged by using measured physiological signals. Fuzzy theory was applied for mathematical handling of the ambiguity related to evaluation of human sensibility. and the degree of belonging to a certain sensibility dimension was quantified by membership function through which the sensibility evaluation was able to be done. Determining membership function was achieved using results from a physiological signal database of arousal/relaxation and pleasant/unpleasant that was generated from imagination. To induce one final result (arousal and pleasant level) based on measuring the results of more than 2 physiological signals and the membership function of each physiological signal. Dempster-Shafer's rule of combination in evidence was applied, through which the final arousal and pleasant level was inferred.

A Technique of Segment Expression and RNA Interference (SERI) Reveals a Specific Physiological Function of a Cysteine-Rich Protein Gene Encoded in Cotesia plutellae Bracovirus

  • Barandoc, Karen;Kim, Yong-Gyun
    • Journal of Microbiology and Biotechnology
    • /
    • v.19 no.6
    • /
    • pp.610-615
    • /
    • 2009
  • As a provirus, polydnavirus has a segmented DNA genome on chromosome(s) of host wasp. It contains several genes in each segment that presumably play critical roles in regulating physiological processes of target insect parasitized by the wasp. A cysteine-rich protein 1 (CRP1) is present in the polydnavirus Cotesia plutellae bracovirus (CpBV) genome, but its expression and physiological function in Plutella xylostella parasitized by the viral host C. plutellae is not known. This CpBV-CRP1 encoding 189 amino acids with a putative signal peptide (20 residues) was persistently expressed in parasitized P. xylostella with gradual decrease at the late parasitization period. Expression of CpBV-CRP1 was tissue-specific in the fat body/epidermis and hemocyte, but not in the gut. Its physiological function was analyzed by inducing transient expression of a CpBV segment containing CpBV-CRP1 and its promoter, which caused significant reduction in hemocyte -spreading and delayed larval development. When the treated larvae were co-injected with double-stranded RNA of CpBV-CRP1, the expression of CpBV-CRP1 disappeared, whereas other genes encoded in the CpBV segment was expressed. These co-injected larvae significantly recovered the hemocyte-spreading capacity and larval development rate. This study reports that CpBV-CRP1 is expressed in P. xylostella parasitized by C. plutellae and its physiological function is to alter the host immune and developmental processes.

Effects of the Tai Chi Exercise Program on Physical Functional and Physiological Variables in Patients with Degenerative Arthritis (타이치 운동이 퇴행성 관절염 환자의 신체적 기능과 생리적 지수에 미치는 효과)

  • Lee, Yun-Jeong
    • Journal of muscle and joint health
    • /
    • v.16 no.2
    • /
    • pp.116-124
    • /
    • 2009
  • Purpose: The purpose of this study was to examine the effects of a Tai Chi exercise program on physical function and physiological variables in patients with degenerative arthritis. Methods: The study utilized a nonequivalent control group with pretest-posttest design. Data collection was done with the elders from two welfare institutions in C-city between July I and September 22, 2007. The participants were assigned either to an experimental group (n=24) or to a control group (n=22). The experimental group participated in Tai Chi exercise for 60 minutes per session, twice a week for 12 weeks and the control group received the education about arthritis for 3 weeks. Results: Except for $VO_2max$, weight, and body fat rate, the elders in the experimental group showed significant improvement in physical function (grip strength, flexibility, balance), and physiological variables (BP) compared to the control group. Conclusion: The results suggest that Tai Chi exercise would partially improve physical function, and physiological variables. Further studies are needed to determine the effects on physical fitness and physiological variables after Tai Chi exercise in this population.

A study on the Physiology of the Lung by 'Un Qi' and the clinical meaning of its Phyological Systems (폐장생리(肺臟生理)의 운기적(運氣的) 인식과 그 생리계통(生理系統)의 임상적 의의에 관한 연구(硏究))

  • Shin, Heung-Mook;Kim, Gil-Whon
    • The Journal of Korean Medicine
    • /
    • v.18 no.2
    • /
    • pp.5-14
    • /
    • 1997
  • This paper documents a study of the physiology of the lung. The aim of this paper is to better comprehend the physiological function of lung. To this end, the relationship between the physiological function of the lung and the characteristics of the 'Keum Un Qi Hua'(金運氣化), and the functional changes of the lung and its surrounding physiological systems have been studied in their relationship to the concept of the organism as a whole. The results of this study are as follows; The function of the lung is comprehended as corresponding to the 'Keum Un Qi Hua'. In visceral phenomenon, the lung has specific relations with the large intestine(大腸), nase(鼻), skin and hair(皮毛), sweat gland(汗孔), nasal mucus(涕), spirit(氣魄), grief and melancholy(憂 悲), the lung channel of hand-taiyin(手太陰肺經), the large intestine channel of hand-yangming(手陽明大腸經). This is called ‘the physiological systems of the lung’, and because these mutual relations reflect the functional changes of the lung, it is applied as the elementary knowledge to diagnose and treat the lung. For instance, a deficiency of the 'Qi‘ of the lung brings on an unconsolidated defending energy whose manifestations are sweating spontaneously as well as being susceptible to the common cold due to a diability in fighting against external pathogenic factors. Invasion of the lung by external pathogenic factors blocks the movement of the 'Qi' of the lung, which results in nasal obstraction. watery nasal discharge and a hyposmia. So the physiological functions and pathological changes of the lung can be determined by observing ’the physiological systems of the lung‘ based on the precepts of oriental medicine. As a result, the function of the lung is to be understood based on the characteristics of the 'Keum Un Qi Hua'. Furthermore we can know that the physiological systems of the lung mirrors the functional changes of the lung.

  • PDF

Study on Tiangui - according to successive physicians - (역대(歷代) 의가설(醫家說)을 중심으로 살펴본 천계(天癸)에 관한 문헌연구(文獻硏究))

  • An, Jong-Eun;Kang, Jung-Soo
    • Journal of Oriental Physiology
    • /
    • v.14 no.2 s.20
    • /
    • pp.139-148
    • /
    • 1999
  • In this paper, tiangui was considered in it's conception, generation and physiological function according to successive physicians. The following results were obtained : 1. Over the years, there have been many ideas about tiangui. These days, it is proper that tiangui be thought of as some substance which is in shenjing and which promotes generative function. According to current endocrinologic view, tiangui is equivalent to GnRH. 2. Before birth, a parent's energy is inherited to the embryo and after birth, that energy becomes tiangui which is sustained by taking food and nutrition. Tiangui is especially related to shenjing. 3. The most import physiological function of tiangui is the promotion of generative function. So it is related to menstruation and ejaculation. Secondly, tiangui is also concerned with human's growth and development.

  • PDF

Changes in Physiological Characteristics of Trapezius, Multifidus and Hamstring Muscles According to Tilt Angle of Exercise Bed in Elderly (운동침대 틸트 각도 변화에 따른 노인의 승모근, 다열근 및 슬괵근 근육의 생리학적 특성 변화 연속 증례 연구)

  • Kim, Jungjin
    • Archives of Orthopedic and Sports Physical Therapy
    • /
    • v.14 no.2
    • /
    • pp.127-133
    • /
    • 2018
  • Purpose: This study investigated the effects of changing the tilt angle of the exercise bed on physiological characteristics of trapezius, multifidus, and hamstring muscle function. Methods: Twenty elderly who complains of back and lumbar pain or discomfort participated in this study (average age: $64.70{\pm}4.55$ years). The physiological characteristics, including muscle tone (F), dynamic stiffness (S), and elasticity (D) of trapezius, multifidus, and hamstring muscles were measured by a Myoton device at three tilt angles (0, 15, and 30 degrees) during exercise. Results: The muscle tone, dynamic stiffness, and elasticity of the right trapezius and left hamstring muscle showed significant differences (p<0.05) according to exercise bed tilt angle, while the other muscles showed no significant differences. Conclusions: Our results demonstrate that physiological characteristics of the upper and lower extremity muscles are affected ipsilaterally, according to the tilt angles of the exercise bed.

The Effect of Aquatic Exercise Program on Physical Fitness, Pain and Physiological Function in Patients with Osteoarthritis (수중운동이 골관절염 환자의 체력, 통증 및 생리적 기능에 미치는 효과)

  • Park, Hyoung-Sook;Kim, Hye-Sook;Kim, Nam-Hee
    • Journal of muscle and joint health
    • /
    • v.13 no.1
    • /
    • pp.31-42
    • /
    • 2006
  • Purpose: The purpose of this study was to identify the effects of aquatic exercise program on physical fitness, pain and physiological function in patients with osteoarthritis. Method: The subjects of the study were thirty women(age: forty-seventy five) who have an osteoarthritis. Aquatic exercise program consist of approximately two hours of exercise in water, two days per week, for six weeks. Data were gathered from April 19 2005 to May 27 using a questionnaire and measuring physical fitness and physiological index. Data were analyzed with the SPSS Win 12.0 using frequency and paired t-test for difference between pre-exercise and post-exercise. Results: The results of this study were as follows: There were significantly increased on left shoulder (t=3.848, p=.001) and waist flexibility(t=-5.622, p=.001) scores. There were significantly decreased on pain score(t=5.288. p=.000), body weight(t=5.072, p=.001), systolic B.P(t=18.362, p=.001), diastolic B.P(t=32.558, p=.001), blood sugar(t=1.805, p=.041), total cholesterol(t=2.032, p=.026) scores. Conclusion: From these results, it is concluded that the aquatic exercise program can be effective in increasing physical fitness, physiological function and decreasing pain in patients with osteoarthritis.

  • PDF

Study on the Bitonghyul (비통혈(脾統血)에 관한 고찰)

  • Jung, Hyun-Jong
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.24 no.6
    • /
    • pp.921-923
    • /
    • 2010
  • Although Bi(脾 Spleen) is a major organ which controls digestion and absorption in Korean medicine, there also introduced another function of bi, which is called 'bitonghyul(脾統血)' that means the spleen controls(holdings) the blood. While the spleen is involved in the function of blood generation through the digestion and absorption of food, 'bitonghyul' is another expression regarding function of the spleen. The meaning of 'bitonghyul' is related with the function of keeping the blood flowing within the blood vessels, hemostasis. Comparing the function of the spleen with the mechanisms of hemostais, it is concluded that 'bitonghyul' is a physiological effects which affect hemostatic mechanisms via absorption of vitamin K.