• Title/Summary/Keyword: physiological property

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A new opinion about the electrical peculiarity of meridian and acupoint (경혈 및 경락의 전기적 특성에 관한 또 다른 이해)

  • Ahn, Seong-Hun
    • Korean Journal of Acupuncture
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    • v.25 no.2
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    • pp.33-41
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    • 2008
  • Objectives : The aim of this study was to understand electro-physiological peculiarity in meridian and acupoints, and understand acupuncture therapy mechanism as an electro-physiological viewpoints. Methods : I reviewed the articles on the electro-physiological peculiarity of the meridian and acupoints Results and Conclusions : It has been reported that meridian and acupoints have high-electrical conductivity and row-electrical resistance. On this scientific basis, to understand the mechanism of acupuncture therapy, I made some hypotheses. At first, there is electro-property in meridian and acupoint. The second, energy flowing in meridian is related with electro-property. The third, there is electronic interaction between practitioner of acupuncture therapy and patient receiving acupuncture therapy. The forth, acupuncture effects which may be expressed by the electro-charge capacity is transfered between practitioner and patient via acupuncture. Electro-charge induced via acupuncture in practitioner may be an important factor that initiate the electro-charge changes in meridian and acupoint of patient.

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Probiotic Property and Anti-Obesity Effect of Lactiplantibacillus plantarum KC3

  • Kim, Seulki;Huang, Eunchong;Ji, Yosep;Holzapfel, Wilhelm Helnrich;Lim, Sang-Dong
    • Food Science of Animal Resources
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    • v.42 no.6
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    • pp.996-1008
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    • 2022
  • Lactic acid bacteria are representative probiotics that have beneficial effects on humans. Nineteen strains among the 167 single strains from kimchi was selected and their physiological features were investigated. The selection of a strain was based on strong enzyme (lipase, α-amylase, and α-glucosidase) inhibitory activities and anti-obesity effects in the adipocytes. For the final selection, the strain Lactiplantibacillus plantarum KC3 was tested for its potential as a starter. To assess its functionality, a freeze-dried culture of L. plantarum KC3 was administered to a diet-induced obese mouse model receiving a high-fat diet. The animal group administered with L. plantarum KC3 showed significant body weight loss during the 12-week feeding period compared to the high-fat control group. This study investigated the physiological characteristics of selected strain and evaluated its potential as an anti-obesity probiotic in mice.

Physiological Signal Analyses of Frictional Sound by Structural Parameters of Warp Knitted Fabrics

  • Cho Gilsoo;Kim Chunjeong;Cho Jayoung;Ha Jiyoung
    • Fibers and Polymers
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    • v.6 no.1
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    • pp.89-94
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    • 2005
  • The purpose of this study is to offer acoustical database of warp knitted fabrics by investigating frictional sound properties and physiological responses according to structural parameters such as construction, lap form, and direction of mutual guide bar movement. Fabric sounds of seven warp knitted fabrics are recorded, and Zwicker's psychoacoustic param­eters - loudness(Z), sharpness(Z), roughness(Z), and fluctuation strength(Z) - are calculated. Also, physiological responses evoked by frictional sounds of warp knitted fabrics are measured such as electroencephalogram (EEG), the ratio of high fre­quency to low frequency (HF/LF), respiration rate (RESP), skin conductance level (SCL), and photoplethysmograph (PPG). In case of constructions, frictional sound of sharkskin having higher loudness(Z) and fluctuation strength(Z) increases RESP. By lap form, open lap has louder and larger fluctuating sound than closed lap, but there aren't significant difference of physi­ological responses between open lap and closed lap. In direction of mutual guide bar movement, parallel direction evokes bigger changes of beta wave than counter direction because of its loud, rough, and fluctuating sound. Fluctuation strength(Z) and roughness(Z) are defined as important factors for predicting physiological responses in construction and mutual guide bar movement, respectively.

Anti-allergic Property of Chungjokupye-tang (정조구폐탕의 항알레르기 효과에 관한 연구)

  • Na Hyun Uk;Jeong Han Sol;Lee Kwang Gyu
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.17 no.6
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    • pp.1376-1382
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    • 2003
  • The purpose of this research was to investigate the effects of Chungjokupye-tang(CJKPT) on the anti-allergic property. CJKPT decreased the hyaluronidase activity in vitro, and inhibite the anaphylaxis induced by compound 48/80 and suppress the degranulation of peritoneal mast cell. And CJKPT also decreased the passive cutaneous anaphylaxsis, arthus reaction and contact dermititis by DNFB. These results suggest that CJKPT have an anti-allergic property.

Psychological and Physiological Responses to the Rustling Sounds of Korean Traditional Silk Fabrics

  • Cho, Soo-Min;Yi, Eun-Jou;Cho, Gil-Soo
    • Fibers and Polymers
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    • v.7 no.4
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    • pp.450-456
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    • 2006
  • The objectives of this study were to investigate physiological and psychological responses to the rustling sound of Korean traditional silk fabrics and to figure out objective measurements such as sound parameters and mechanical properties determining the human responses. Five different traditional silk fabrics were selected by cluster analysis and their sound characteristics were observed in terms of FFT spectra and some calculated sound parameters including level pressure of total sound (LPT), Zwicker's psychoacoustic parameters - loudness(Z), sharpness(Z), roughness(Z), and fluctuation strength(Z), and sound color factors such as ${\Delta}L\;and\;{\Delta}f$. As physiological signals, the ratio of low frequency to high frequency (LF/HF) from the power spectrum of heart rate variability, pulse volume (PV), heart rate (HR), and skin conductance level (SCL) evoked by the fabric sounds were measured from thirty participants. Also, seven aspects of psychological state including softness, loudness, sharpness, roughness, clearness, highness, and pleasantness were evaluated when each sound was presented. The traditional silk fabric sounds were likely to be felt as soft and pleasant rather than clear and high, which seemed to evoke less change of both LF/HF and SCL indicating a negative sensation than other fabrics previously reported. As fluctuation strength(Z) were higher and bending rigidity (B) values lower, the fabrics tended to be perceived as sounding softer, which resulted in increase of PV changes. The higher LPT was concerned with higher rating for subjective loudness so that HR was more increased. Also, compression linearity (LC) affected subjective pleasantness positively, which caused less changes of HR. Therefore, we concluded that such objective measurements as LPT, fluctuation strength(Z), bending rigidity (B), and compression linearity (LC) were significant factors affecting physiological and psychological responses to the sounds of Korean traditional silk fabrics.

Effects of Physiological Properties in Culture media on the Proliferation and the Acclimation of Bulblets of Lilies Cultured in vitro (몇 가지 나리 품종의 기내배양에서 배지의 물리성이 자구증식 및 순화에 미치는 영향)

  • 손병구;강점순;이용재;최영환
    • Journal of Life Science
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    • v.12 no.6
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    • pp.740-744
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    • 2002
  • This experiment was conducted to clarify the effects of physiological properties in culture media on the proliferation and the acclimation of bulblets of several kinds of lilies cultured in vitro. Proliferation rate of bulblets from bulblet of Oriental hybrid ‘Marco Polo’, ‘Casa Blanca’ and Asiatic hybrid ‘Jolanda’ was higher in solid MS media compared with bulblets from scale Acclimation rate of regenerated bulblets was high in solid media which was pre-cultured in vitro, compared with liquid media. Sprouting rate of bulblets from bulblet was higher than bulblets from scale.

Physiological Functionalities and Anti-oxidant activity of heated radish extract

  • Kim, Hyun-Kyoung
    • International journal of advanced smart convergence
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    • v.7 no.2
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    • pp.38-46
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    • 2018
  • This study proceeded an experiment that can increase such physiological properties of heated radish extract. During the extraction of radish, including the byproduct, an increase in antioxidant properties of radish according the heating temperature was performed. Upon the extracts of radish bark and radish green extract(mucheong), the physiological functionalities and antioxidant activity were investigated. As a result, the color of radish ethanol extract in dependence of heating temperature, showed light brown color at low heating temperature and black color from $150^{\circ}C$. The total polyphenol content significantly increased as a result of heat treatment; 6.7 times and 22 times higher than the control at $110^{\circ}C$ and $150^{\circ}C$, respectively. DPPH radical scavenging ability and antioxidant property increased with increasing heating temperature; in comparison to heat-treated radish at $110^{\circ}C$ and $150^{\circ}C$, $IC_{50}$ decreased by 1/22 times. $IC_{50}$ of the control was 23times higher than $150^{\circ}C$ heat treated radish (Control $IC_{50}$:130.305). According to the graph that represents ABTS activity, antioxidant activity increased in dependence of heat treatment likewise to the total polyphenol content and DDPH radical scavenging activity. Upon heat treatment at $150^{\circ}C$, antioxidant activity in consequence of ABTS assay increased 23 times higher than the control.

Effects of Thermophysiological Responses by Trainning Wear Made from Cotton and Hygroscopically Treated Polyester (면과 친수 가공 폴리에스테르 소재로 된 트레이닝복의 인체 생리 효과)

  • Chung Hee-Ja;Chang Jee-Hae
    • Journal of the Korean Home Economics Association
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    • v.37 no.12 s.142
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    • pp.193-203
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    • 1999
  • This study was executed to show influence of material and property of sportswear to physiological responses of body and comfort sensation and to supply basic research data about comfortable sportswear Trainning wear was manufactured with cotton(C) and hygroscopically treated polyester material (FP), and its properties of material were measured. Then rectal temperature, skin temperature, heart rate, weight loss, clothing microclimate and subjective sensation was estimated with study of wearing with these sportswear and examined the influence that it got to physiological responses of body and sensation. Health adult men were selected for subjects and executed at climatic chamber of temperature, $20\pm2^{\circ}C and humidity, $60\pm5%$ R.H. Conclusively sportswear of hygroscopically treated polyester is a favorable functional material. So far factor that affect to physiological comfort sensation has been explained mostly by moisture regain but in our experiment, it turned out that air permeability, water absorption velocity and dynamic oater absorption etc. were affecting factors. So according to this result, air permeability and moisture permeability should be considered with transmittance of temperature moisture for development of comfort material.

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Change in Germination and Physiological Properties of Hippophae rhamnoides Seeds by Different Storage Period (갈매보리수나무 종자의 저장기간에 따른 발아 및 생리적 특성)

  • Choi, Chung Ho;Yang, Byeong Hoon
    • Korean Journal of Plant Resources
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    • v.28 no.4
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    • pp.533-540
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    • 2015
  • Germination properties, leachate electrical conductivity (EC), and inorganic compound leaching were analyzed to ascertain the storage ability and change of physiological characteristics during storage of Hippophae rhamnoides seeds. Seeds were placed in an incubator at 25℃ and sown in different soil media (sand, vermiculite and horticultural substrate) after being stored for 6, 18 and 30 months at 2℃. All germination properties decreased in accordance to an increase of the seed storage period. Compared with the seed storage for 18 months, germination percentage (GP), germination performance index (GPI), and germination value (GV) of seeds stored for 30 months decreased by more than 50%. When the seeds were sown in different soil media in a greenhouse, those germination properties were similar to the seeds germinated in an incubator, and mean germination time, GPI and GV had a significant difference except GP among soil media. EC and inorganic ion concentration had a strong positive correlation with the seed storage period, but the ratios of inorganic ions from stored seeds revealed that K+/Mg2+ and Na+/Mg2+ were inversely correlated with the storage period.