• Title/Summary/Keyword: Physiological state

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Physiological Fuzzy Neural Networks for Image Recognition (영상 인식을 위한 생리학적 퍼지 신경망)

  • Kim, Kwang-Baek;Moon, Yong-Eun;Park, Choong-Shik
    • Journal of Intelligence and Information Systems
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    • v.11 no.2
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    • pp.81-103
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    • 2005
  • The Neuron structure in a nervous system consists of inhibitory neurons and excitory neurons. Both neurons are activated by agonistic neurons and inactivated by antagonist neurons. In this paper, we proposed a physiological fuzzy neural network by analyzing the physiological neuron structure in the nervous system. The proposed structure selectively activates the neurons which go through a state of excitement caused by agonistic neurons and also transmit the signal of these neurons to the output layers. The proposed physiological fuzzy neural networks based on the nervous system consists of a input player, and the hidden layer which classifies features of learning data, and output layer. The proposed fuzzy neural network is applied to recognize bronchial squamous cell carcinoma images and car plate images. The result of the experiments shows that the learning time, the convergence, and the recognition rate of the proposed physiological fuzzy neural networks outperform the conventional neural networks.

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The Viable but Nonculturable State in Bacteria

  • Oliver James D.
    • Journal of Microbiology
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    • v.43 no.spc1
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    • pp.93-100
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    • 2005
  • It had long been assumed that a bacterial cell was dead when it was no longer able to grow on routine culture media. We now know that this assumption is simplistic, and that there are many situations where a cell loses culturability but remains viable and potentially able to regrow. This mini-review defines what the 'viable but nonculturable' (VBNC) state is, and illustrates the methods that can be used to show that a bacterial cell is in this physiological state. The diverse environmental factors which induce this state, and the variety of bacteria which have been shown to enter into the VBNC state, are listed. In recent years, a great amount of research has revealed what occurs in cells as they enter and exist in this state, and these studies are also detailed. The ability of cells to resuscitate from the VBNC state and return to an actively metabolizing and culturable form is described, as well as the ability of these cells to retain virulence. Finally, the question of why cells become nonculturable is addressed. It is hoped that this mini-review will encourage researchers to consider this survival state in their studies as an alternative to the conclusion that a lack of culturability indicates the cells they are examining are dead.

Analyses of Phospholipids in Soybean Oils by HPLC (HPLC를 이용한 대두유 인지질의 분석)

  • Yoon, Suk-Hoo;Min, David-B.;Yeo, Young-K.;Horrocks, Lloyd A.
    • Korean Journal of Food Science and Technology
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    • v.19 no.1
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    • pp.66-68
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    • 1987
  • The qualitative and quantitative analyses of phospholipids in chloroform-methanol extracted crude and hexane extracted deodorized soybean oils were carried out by High-Performance Liquid Chromatography (HPLC). The phosphorus contents in hexane extracted crude, degummed, refiend, bleached and deodorized soybean oil were 510, 120, 5, 1.4 and 1 ppm, respectively. The chloroform-methanol extracted crude soybean oil had 800 ppm phosphorus. The phospholipids found in crude oil were phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, phosphatidylserine and phosphatidic acid. Only phosphatidylchonine and phosphatidylethanolamine were detected in the deodorized soybean oil. The HPLC method described in this report can separate and detect individual phospholipids in soybean oil at 0.1 ppm level in 30 min.

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Growth Performance and Physiological Changes of Olive Flounder Paralichthys olivaceus by Concentration of Ozone Produced Oxidants in Semi-RAS (반순환여과시스템에서 오존 유래 잔류산화물 농도에 따른 넙치(Paralichthys olivaceus)의 성장과 생리학적 변화)

  • Jung, Sangmyung;Park, Woogeun;Park, Jeonghwan;Kim, Jaewon;Kim, Pyong-kih
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.51 no.6
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    • pp.688-696
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    • 2018
  • This study investigated the effects of ozone-produced oxidants (OPO) on the growth, hematology, and histology of olive flounder Paralichthys olivaceus (average weight 500 g), raised in an ozonated semi-recirculating aquaculture system. The system was ozonated to maintained OPO concentrations of 0.004 (Control), 0.014 (OPO15), and 0.025 (OPO25) mg $Cl_2/L$ in culture tanksfor 26 days. The specific growth rate, feed conversion ratio, and survival rate did not significantly differ among the groups (P>0.05), while the daily feeding rate decreased OPO-dose-dependently (P<0.05). OPO appeared to affect the gill, hepatopancreas, and kidney tissues of fish from ozonated tanks. Hematologically, OPO affected some blood indices. The levels of chloride, glucose, glutamic oxaloacetic transaminase, and glutamic pyruvic transaminase were significantly increased in the ozonated groups, while the total cholesterol and cortisol decreased dose-dependently. These results imply that long-term exposure of olive flounder to an OPO concentration ${\geq}0.014mg\;Cl_2/L$ might result in damage to the gill, hepatopancreas, and kidney tissues and cause physiological stress, albeit with no apparent short-term effects on growth or survival.

Acceleratory Action of Ginseng Glycosides on the Recovery Heart Rate after Strenuous Exercise in Men and Women (격심한 운동후 심장박동수에 미치는 인삼 총배당체의 회복 촉진작용)

  • Lee, Jae-Kon;Nam, Kee-Yong
    • The Korean Journal of Physiology
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    • v.8 no.2
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    • pp.79-90
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    • 1974
  • In 24 men and 12 women recovery of heart rate after strenuous exercise was observed before and after administration of total ginseng glycosides. In men 100 mg of ginseng glycosides were given twice with a 3 hour interval on the day of treadmill test and in women two more administrations of ginseng glycosides were added on the day before the exercise test. The action of ginseng glycosides was interpreted as an adaptogen, i.e., to enhance the recovery to the physiological equilibrium from the displace4 state. Recovery of heart rate to the pre-exercise state was observed for 20 minutes after strenuous exercise of 2 minutes duration on a treadmill (8 km/hr, 15% grade). In men the recovery of heart rate was enhanced$(P<.2{\sim}.4)$ after ginseng glycosides administration. In women the acceleration of recovery heart rate was highly significant $(P<.01{\sim}.05)$ after ginseng glycosides administration. In men and women recovery heart rate at 3 minute of recovery period after ginseng glycosides equaled to the value at 6 minute of recovery period before ginseng administration.

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Molecular Cloning and Sequencing of the Bacillus subtilis cdd Gene Encoding Dooxycytindine-Cytidine Deaminase

  • Song, Bang-Ho;Neuhard, Jan
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 1986.12a
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    • pp.512.1-512
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    • 1986
  • The cdd gene of Bacillus subtilis, encoding the deoxycytidinecytidine deaminase of pyrimidine nucleotide biosynthesis has been cloned into the EcoRl site of pBR322. The recombinant plasmid, pSol, promoted the synthesis of 100-140 fold elevated levels of the enzyme. A comparison of the polypeptides encoded by cdd complementing and non-complementing plasmids in the mini cell showed the gene product to have a molecular mass of approximately 14 kDa. The nucleotide sequence of the gene and 460 base pairs upstream from the coding region was determined. An open-reading frame, encoding a protein with a calculated molecular mass of 14337 Da, was deduced to be the coding region for cdd. However, the enzyme has an apparent molecular mass of 54 kDa as determined by gel filteration, whereas sucrose density gradient centrifugation shows 58 kDa. It means that the enzyme could be forming a tetramer in a physiological state. About 28 amino acids of the N-tetramer in a physiological state. About 28 amino acids of the N-terminal presumably form a signal for membrane translocation and six cystein residues are contained in the structure. S1 nuclease mapping indicated that transcription of cdd is initiated 17 base pairs upstream from the translational start. The structural characterization of the odd gene was performed.

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The Effect of Music Intervention on Emergency Room Nurse Anxiety through Music Appreciation (음악 감상을 통한 음악중재가 응급실 간호사의 불안에 미치는 효과)

  • Chong, Min-Yeong;Chong, Yeo-Jeong
    • Proceedings of the Korea Contents Association Conference
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    • 2009.05a
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    • pp.1111-1117
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    • 2009
  • Emergency room nurses whom exposed to more confused environment, violence, and medical disputes feel anxiety, due to increasing of demands and needs of emergency room services. Emergency room nurse anxiety needs to intervention in order to relieve emergency room nurses from anxiety, because it is an important factor that decreases job skill and satisfaction. In this paper, we examine whether to improve the effect of music intervention on emergency room nurse anxiety through appreciation of music. We used vocal music and a SAI(State Anxiety Inventory) tool for measuring the effect of music on emergency room nurse anxiety and physiological responses. Experimental results showed that vocal music intervention reduces emergency room nurse anxiety and physiological responses.

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Effect of a polyherbal formulation (Diarun plus) on the glycemic status modified by physiological means in non-diabetic mice and rats

  • G, Senthilvel;M, Jegadeesan;P, Thirugnanasambantham;E, Mayisvren;M, Balasubramanian;N, Narayanan;S, Viswanathan;Austin, Anoop
    • Advances in Traditional Medicine
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    • v.7 no.2
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    • pp.128-132
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    • 2007
  • Diarun plus, a polyherbal formulation containing herbal ingredients of folkloric Antidiabetic effect, was investigated for its effect on glycemic status in rats and mice. In contrast to conventional chemical induced diabetic animal models, changes in glycemic states were induced by physiological maneuvers. Results revealed that in euglycemic animals Diarun plus elicited little change (-10 to +10%), which was insignificant. In food deprivation/swim exercise induced hypoglycemia, Diarun plus reduced the degree of hypoglycemia in both rats and mice (from 38% to 27% in rats and 45% to 32% in mice). Similarly, the marked hyperglycemia induced by dextrose (70% in rats and 95% in mice) was reduced markedly to 8% and 25% respectively. The findings of the present study suggests that the ingredients of Diarun plus have the unique property of maintaining near euglycemic state irrespective of the altered glycemic state, and that have no significant effect in euglycemic condition.