• Title/Summary/Keyword: Physiological indicator

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Physiological and Biochemical Responses of Sedum kamtschaticum and Hosta longipes to Ozone Stress (기린초와 비비추의 오존에 대한 생리·생화학적 반응)

  • Cheng, Hyo Cheng;Woo, Su Young;Lee, Seong Han;Kwak, Myeong Ja;Kim, Kyeong Nam
    • Horticultural Science & Technology
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    • v.31 no.1
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    • pp.1-7
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    • 2013
  • In this study, the resistance to ozone and characteristics of ozone-induced damage were investigated on the perennial ground cover plant species. Sedum kamtschaticum and Hosta longipes were exposed to $200{\mu}g{\cdot}kg^{-1}$ ozone for 8 hours per day (from 08:00 to 16:00) in the naturally irradiated phytotron. The extent of ozone-induced damage was measured through the analysis of physiological parameters, such as water use efficiency (WUE), chlorophyll content (Chl. a, Chl. b, Chl. a + b, and Chl. a/b ratio), carotenoid contents, and the induction of reactive oxygen species (ROS). Ozone exposure significantly reduced the daytime WUE in both species. The contents of chlorophyll and carotenoid were also decreased and ROS, such as hydrogen peroxide ($H_2O_2$) and superoxide radical ($O_2{^-}$) were accumulated after ozone exposure. The above results of this study suggested that S. kamtschaticum is more resistant to atmospheric ozone than Hosta longipes. Considering its fast responses to ozone, it was also assumed that Hosta longipes can be used as an indicator plant of an increase in atmospheric ozone concentration.

The optimum post-weaning growth using different levels of dietary protein in Pakistan calves

  • Hamid, Muhammad Mahboob Ali;Jo, Ik Hwan;Choi, Seong Ho;Park, Sung Kwon;Choi, Chang Weon
    • Korean Journal of Agricultural Science
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    • v.45 no.3
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    • pp.429-435
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    • 2018
  • The aim of this study was to provide different levels of dietary protein for optimum growth performance in calves and to investigate the impact on the concentration of insulin-like growth factor-1 (IGF-1) in serum. Female Sahiwal calves (n = 12, body weight (BW) = $40{\pm}4.3kg$ and age = $60{\pm}10days$) were selected and divided into three groups with 4 animals in each group. Three diets of T0, T1 and T2 with 18, 20 and 22% of crude protein levels, respectively, were given to the calves to assess the post-weaning growth performance. Calves fed the T2 diet showed a higher (p < 0.05) dry matter (DM) intake than those fed the T0 and T1 diets. The feed conversion ratio (FCR) for the calves fed the T2 diet was lower (p < 0.05) than those of the calves fed the T0 and T1 diets. The T2 group had the highest BW (p < 0.05) compared with the other groups. The concentration of IGF-1 in serum increased (121.9, 143.3, and 152.9 ng/ml for T0, T1, and T2, respectively) as the crude protein (CP) level increased. Overall, the results of this study suggest that post weaning diets T1 and T2 with 20 and 22% crude protein in Sahiwal female calves had significantly increased the BW and serum IGF-1 concentration. The IGF-1 estimation might be a physiological indicator for growth performance.

The visible injury and physiological responses of three varieties of hot peppers to ozone

  • Kim, Bo-Sun;Yun, Sung-Chul
    • Proceedings of the Korean Society of Plant Pathology Conference
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    • 2003.10a
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    • pp.93.1-93
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    • 2003
  • A growth chamber fumigation was conducted to evaluate the ozone (O3) on the physiology of three hot pepper, Capsicum annuum L. cultivars, 'dabotab', 'buchon' and 'pochungchun'. Thirty-day old plants were exposed to O3 of 120 nl 1-1 in the chambers for 8 h d-1 for 3 days. Foliar damage due to O3 was different from the varieties, 'dabotab'was most sensitive to O3, 'pochungchun' was medium, and 'buchon' was resistant. Ozone symptom on the leaves was bifacial necorsis. Photosynthesis and stomatal conductance were decreased due to O3 treatment, but they were not much different from the variety. Decreases of net photosynthesis by O3 were 56%, 40% and 35% on 'dabotab', 'buchon' and 'pochungchun', respectively Decreases of stomatal conductance by O3 were 66%, 63%, and 50% on each varieties. Ozone closed the stomata and decrease net photosynthesis on hot peppers regardless of the variety. Light curves on the three varieties were showing similar patterns that O3 damage on net photosynthesis were started at the low levels of light with or without the visible injury, Assimilation-internal CO2 concentration curves of the three cultivars were not different due to the treatment. It means there was not significant biochemical damage Inside the leaves by O3. In conclusion, ozone closed the stomata and damaged light capturing system of the pepper leaves with or without the visible damage. Although visible damage of the leaves could be a good indicator of O3 resistance, the ecophysiological change by O3 were not proportional to the amout of visible injuries

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The Validation Study of Shaping Comfortable Environments Based on the PMV Index Using Facial Skin Temperature (안면 피부온도를 활용한 PMV 지표 기반 쾌적환경 조성의 타당성 연구)

  • Kim, Boseong;Min, Yoon-Ki;Shin, Esther;Kim, Jin-Ho
    • Science of Emotion and Sensibility
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    • v.16 no.3
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    • pp.311-318
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    • 2013
  • This research examined the validity of whether the PMV index-based comfort- or uncomfort-indoor environments could be classified by the facial skin temperature, one of the physiological indicator for human. To do this, we distinguished between a comfort thermal environment and an uncomfort thermal environment using the PMV value, and then facial skin temperatures were measured in both environments. As a result, the facial skin temperature of occupants were different between the comfort- and uncomfort-indoor environments. It suggested that the facial skin temperature could be used in shaping the comfortable indoor environment based on the PMV index. While this result suggested the PMV index-based on comfort and uncomfort indoor environments could not be valid, because the facial skin temperature was lower in the uncomfort thermal environment than in the comfort thermal environment.

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Heart Rate Variability in Cold Pattern: 3-year Follow-up Study (추적관찰을 통해 살펴본 한증 HRV지표)

  • Bae, Kwang Ho;Park, Ki Hyun;Jang, Eunsu
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.34 no.1
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    • pp.30-36
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    • 2020
  • This study aimed to investigate heart rate variability (HRV) characteristics of cold pattern with repeated measurement data. Participants were taken from a Daejeon University cohort study from 2015 to 2018. Forty-seven of the participants studied displayed cold pattern while 23 showed signs of non-cold pattern. HRV was measured in supine position for 5 minutes at each year, and an 8-item cold pattern questionnaire was used for the diagnosis of cold pattern. SDNN (standard deviation of the NN intervals) and RMSSD (the square root of the mean squared differences of successive NN intervals) were used as time domain analysis, and TP (total power), VLF (power in very low frequency range), LF (power in low frequency range), HF (power in high frequency range), LF norm (LF power in normalized units), HF norm (HF power in normalized units) and LF/HF were used as frequency domain analysis. In the Mann-Whitney U test, LF norm, HF norm, and LF/HF showed differences between the cold pattern group and non-cold pattern group at every measurement, and in the independent t-test, the differences were also observed at three points except for the baseline (2015). In the repeated measures ANOVA, the interaction effects were not observed in all HRV parameters, but the time period effects were observed in SDNN, RMSSD, TP, VLF, LF and HF. There were significant differences between those two groups in LF norm, HF norm and LF/HF. This study suggests that LF norm, HF norm and LF/HF might be a useful indicator of cold pattern properties.

A Proposal for Standardization of Tongue Diagnosis Based on Diagnostic Criteria of Tongue Coating Thickness (설진의 표준화를 위한 제언 : 설태 후박의 진단기준을 중심으로)

  • Son, Ji-Hee;Kim, Jin-Sung;Park, Jae-Woo;Ryu, Bong-Ha
    • The Journal of Internal Korean Medicine
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    • v.33 no.1
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    • pp.1-13
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    • 2012
  • Background : In oriental medicine, the status of the tongue is an important indicator to diagnose the condition of one's health, such as physiological and the clinicopathological changes of internal organs. A tongue diagnosis is not only convenient but also non-invasive, and therefore widely used in Oriental medicine. However, the tongue diagnosis is greatly affected by examination circumstances, patient's posture, and doctor's diagnosis criteria. Objectives : This study was designed to assure the necessity for standardization of tongue diagnosis based on diagnostic criteria of tongue coating thickness (TCT). Methods : Thirty tongue photographs were acquired and analyzed by digital tongue diagnosis system (DTDS) which measured the percentage of TCT on the tongue surface. Fifteen oriental medical doctors evaluated TCT in 30 photographs. Afterward, the 15 assessors were trained for diagnostic criteria of TCT and evaluated the photographs again. The intraclass correlation coefficient (ICC) was used to obtain the agreement rate among the 15 assessors and the agreement rate between assessors' TCT scores and DTDS values. Results : The agreement rate among the 15 assessors after training was higher than before training. The agreement rate between assessors' TCT scores and DTDS values after training was also higher than before training. Furthermore, the difference of the agreement rate between before and after training was significant (p<0.05). Conclusions : The standardization of diagnostic criteria of TCT increased the agreement rate among the assessors and the agreement rate between assessors' TCT scores and DTDS values. Therefore, the standardization of diagnostic criteria is expected to contribute to the objectification and quantification of the tongue diagnosis system.

Characterization of Antimicrobial Substance Produced by Lactobacillus paraplantarum KNUC25 Isolated from Kimchi (김치로부터 분리된 Lactobacillus paraplantarum KNUC25가 만드는 항균 물질의 특성)

  • Kim, Ma-Rie;Lee, Su-Jin;Seul, Keyung-Jo;Park, Yu-Mi;Ghim, Sa-Youl
    • Microbiology and Biotechnology Letters
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    • v.37 no.1
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    • pp.24-32
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    • 2009
  • The KNUC25 strain isolated from over-fermented whole Chinese cabbage kimchi was examined for its physiological characteristics using API 50 CHL system assay and identified as Lactobacillus paraplantarum by analysis of whole-cell protein SDS-PAGE pattern assay and similarity of 16S rDNA sequence. L. paraplantarum KNUC25 had a broad antimicrobial activity spectrum from Gram positive to Gram negative bacteria. Scanning electron micrograph analysis showed that KNUC25 might attack to cell surface of indicator cells and destruction can lead to inhibition of the cell growth. The antimicrobial substance of the KNUC25 strain was stable to various degrading enzymes and at high temperature and not a plasmid-born matter. Resistance to proteolytic enzymes showed that an antimicrobial activity of KNUC25 might not be caused by proteinous substance. Maximum production of antimicrobial substance was the exponential growth phase at $30^{\circ}C$.

A Study on Sijo Literature Therapy structuralized in the Rated Codon

  • Park, In-Kwa
    • International Journal of Advanced Culture Technology
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    • v.5 no.2
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    • pp.9-18
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    • 2017
  • The purpose of this study is to find out how to use emotional activity rate in sentence. The aim is to estimate the Emotion-Codon status of emotion-DNA wiggling as well as the sequence of codons in which amino acids of human body are spread. It is as if the amino acids are translated from the DNA of the human body, and the emotions that cooperate with each other are diversified and refined. Through these attempts, we anticipate the change of emotions by literary works and present the direction of the synapse working and the direction of the encoding. Therefore, this study analyzed the emotional activity of Rated Emotion-Codon, which works as Rated Sijo. At this time, the emotional change in the human body, in which the sentence is more clearly pronounced, is predicted and detected. This result shows how emotions can activate the human body. This state of activation is an indicator of how much the sentence pushes the physiological action of the human body. It is judged that Codon is constructed precisely for the activation of the rated Sijo additive definition by this index. Our result is evidenced by the fact that three sentences of Rated Sijo show an array with the same rating as the Rated Codon's, The first sentence fuses with the sentiment between the second sentence and the third sentence of Rated Sijo. The emotional symbols between the sentence symbols "A, U, J, L" in the first base of the Codon table and the sentences fusing between the sentences of the first sentence and the third sentence are "A, U, J, L". The emotional symbols between the sentences flowing in the second base of the Codon table and between the sentences of the first sentence and the second sentence are structured in the third base of the Codon table as "A, U, J, L". The Rated Sijo, which is resiliently and precisely assigned to the human body's Rated Emotion-Codon, will require a rich experience in our Rated Life.

Study on design indicator for wood structure of forest engineering works in Japan(1) - Focus on use and characteristic of wood, investigation and planning - (일본에 있어서 산림토목 목제구조물 설계지침에 관한 연구(1) - 목재의 이용과 특성, 조사 및 계획을 중심으로 -)

  • Chun, Kun-Woo;Kim, Min-Sik;Kim, Youn-Jin;Yoem, Kyu-Jin;Ezaki, Tsugio
    • Journal of Forest and Environmental Science
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    • v.22 no.1
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    • pp.41-49
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    • 2006
  • The design instruction put in the wood structure construction manual of forest engineering works issued in Japan in 2004 is composed of the introduction, the use and characteristic of wood, investigation, planning, design, and etc. of wood structures. We analyzed the introduction, the use and characteristic of wood, investigation and planning for wood structures. By the results. the contents on the characteristic of wood are shown about physical and chemical properties of wood, the environmental influence, psychological and physiological effects, and rot of wood. The investigation items include the effective degree by flow and insolation, white ant's genital existence, flow conditions of surface water and ground water, situations of flora and fauna to live in mountain stream, the condition of water use, and etc. Also, the contents for the planning are explained for the structure, installation features. treatments, use of wood and lumber in the regions, preservative treatment, and etc.

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Study on the Diagnostic Indicators of Fire-heat Pattern Identification in Stroke Patients (중풍환자의 화열변증 진단지표에 관한 연구)

  • Lee, Jung-Sup;Ko, Mi-Mi;Kang, Byoung-Kab;Kim, Jeong-Cheol;Kim, Bo-Young;Lee, In;Kim, Yun-Sik;Choi, Sun-Mi;Bang, Ok-Sun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.2
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    • pp.499-504
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    • 2009
  • The purpose of this study was to evaluate the diagnostic indicators which are used for the identification of fire-heat pattern in stroke patients. For evaluation of diagnostic indicator, we analyzed the indicators which are composed of symptoms and signs collected from stroke patients based on the clinical records using case report form (CRF). Patients had a first-ever stroke within 1 month after the onset of stroke. Pattern identification was performed and decided by two independent physicians. Two patient groups that consist of fire-heat pattern and the other patterns were compared to isolate important indicators affecting the fire-heat pattern identification of stroke patients. The 8 indicators among 16 fire-heat pattern indicators were significantly more frequent compared with non fire-heat pattern group. Logistic regression analysis revealed that 5 indicators among fire-heat indicators were significantly sensitive indicators being capable of identification of fire-heat pattern. But two of them was from the indicators of dampness-phlegm pattern and yin deficiency pattern. Therefore, further studies are required for the development of Korean standard indicators of Fire-heat pattern identification.