• Title/Summary/Keyword: T Branch

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Potentially Toxic Diatoms Pseudo-nitzschia fraudulenta and P. calliantha from Russian Waters of East/Japan Sea and Sea of Okhotsk

  • Stonik, I.V.;Orlova, T.Yu.;Begun, A.A.
    • Ocean Science Journal
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    • v.43 no.1
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    • pp.25-30
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    • 2008
  • Potentially toxic diatoms Pseudo-nitzschia calliantha and P. fraudulenta were found in bottle samples of phytoplankton collected in Amurskii Bay (East/Japan Sea) and in the coastal waters of Sakhalin Island (East/Japan Sea and Sea of Okhotsk) in different seasons during 2002-2006. The mass development of these species occurred in October and November 2002 at water temperatures of $6-16^{\circ}C$ and salinities of 28.8-33.5 PSU. The highest concentrations of P. calliantha and P. fraudulenta were about $2{\times}10^5\;cells\;L^{-1}$ and $1.5{\times}10^5\;cells\;L^{-1}$, respectively. P. fraudulenta was found for the first time in the Russian waters of the East/Japan Sea. Morphological descriptions of these species based on observation with light and electron microscopy and information on their ecology are presented. Data on the geographical distribution of these species are supplemented.

The Report for Atypical Vascular Variations in the Latissimus Dorsi Myocutaneous Flaps (광배근 피판의 비전형적인 혈관 해부학적 증례에 대한 보고)

  • Chung, Duke-Whan;Han, Chung-Soo;Lee, Jae-Hoon
    • Archives of Reconstructive Microsurgery
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    • v.11 no.2
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    • pp.135-140
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    • 2002
  • It has been known that latissimus dorsi(LD) myocutaneous flap based on thoracodorsal artery is one of most useful method for microreconstructive surgery and the thoracodorsal artery of this flap has constant vascular anatomy. The retrospective study for anatomy of the thoracodorsal arterial system was performed at operative cases. The aim of this study was to document the anatomical variation of this pedicle clinically. 167 LD flaps were carried out from 1983 to 2002 in our clinic. We found unusual 7(4.2%) cases compared to standard textbooks of anatomy. One case was no vascular supply to LD muscle. In 2(1.2%) cases thoracodorsal artery was a typical branch of the subscapular artery but didn't branch to LD muscle, passed to lower serratus anterior muscle, and at this point, supplied vessel to LD muscle and it's vascular diameter was about 1mm diameter. The thoracodorsal artery arose from the axillary artery in 1.8% of cases(3 cases). One case had less than 1mm vascular diameter but a branch of subscapluar artery. It should be emphasized that we must elevate the latissimus dorsi flap after accurate cognition for the anatomy of thoracodorsal artery because the thoracodorsal arterial system is almost reliable but not uniform in rare cases.

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A Study on the Pressure Drops of T-Branch Pipes (분기배관의 압력강하에 관한 연구)

  • Nam, Jun-Seok;Baek, Chang-Sun;Kwon, Soon-Kwan;Kim, Dong-Hyun;Min, Kyung-Tak;Kim, Byoung-Gon;Lee, Sung-Ho
    • Fire Science and Engineering
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    • v.22 no.3
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    • pp.272-277
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    • 2008
  • This study is performed for propose that exactly equivalent length of TBP in the applied at water-based fire protection system. For predict the measuring position of equivalent length, we determined the measuring position using the FVM about pressure drop of TBP. For the reckon of the exact about measured value we compared with the result of FVM and we knew the similar value each other. Using the results we proposed the friction loss measuring position that inlet of main dirction is 20 times of appellation diameter in main pipe, outlet of main dirction is 10 times of appellation diameter in main pipe and outlet of branched direction is 20 times of appellation diameter.

Estimation of Additive and Dominance Genetic Variances in Line Breeding Swine

  • Ishida, T.;Kuroki, T.;Harada, H.;Fukuhara, R.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.1
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    • pp.1-6
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    • 2001
  • Additive and dominance genetic variances were estimated for purebred Landrace selected with line breeding from 1989 to 1995 at Miyazaki Livestock Experiment Station, Kawaminami Branch. Ten body measurements, two reproductive traits and fifteen carcass traits were analyzed with single-trait mixed model analysis. The estimates of narrow-sense heritabilities by additive model were in the range of 0.07 to 0.46 for body measurements, 0.05 to 0.14 for reproductive traits, and 0.05 to 0.68 for carcass traits. The additive model tended to slightly overestimate the narrow-sense heritabilities as compared to the additive and dominance model. The proportion of the dominance variance to total genetic variance ranged from 0.11 to 0.91 for body measurements, 0.00 to 0.65 for reproductive traits, and 0.00 to 0.86 for carcass traits. Large differences among traits were found in the ratio of dominance to total genetic variance. These results suggested that dominance effect would affect the expression of all ten body measurements, one reproductive trait, and nine carcass traits. It is justified to consider the dominance effects in genetic evaluation of the selected lines for those traits.

Back Pain of Muscular Origin (근긴장성 요통의 치료에 대한 새로운 소견)

  • Choi, Joong-Rieb
    • The Korean Journal of Pain
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    • v.6 no.1
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    • pp.83-95
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    • 1993
  • In out-patient clinic, it seems to be common that most back pain arise from muscular origins rather than from skeletal origins. Most physicians have wished to diagnose lower back pain from the radiologic findings only. From clinical experiences and anatomical studies, I have gotten a different opinion from common sense about backaches. If I met a patient who had lower back pain around the posterior superior iliac crest(P.S.I.C.) area, I would had to search a trigger point in the erector spinae muscles at the level of thoraco-lumber junction rather than at the level of the painful site. It is why that sensory innervation over the posterior superior iliac crest area is the posterior primary branch of T12 spinal nerve running down through the erector spinae muscles. Pain on the iliac crest area is supposedly due to hyperirritability of the sensory nerve distributing to this area. Hyperirritability of the posterior primary branch of $T_{12}$ spinal nerve may be due to the spasm of the longissimus thoracis muscle in the erector spinae muscles at the level of the thoraco-lumbar junction. So finally, I would like to insist that spasmolytic treatment on the muscle at the level of the thoraco-lumbar junction would be better for pain relief around P.S.I.C. than treatment at the painful site only.

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Evaluation of Bio-Control Efficacy of Trichoderma Strains against Alternaria alternata Causing Leaf Blight of Ashwagandha [Withania somnifera (L.) Dunal]

  • Rahman, Md. Ahsanur;Rahman, Md. Arifur;Moni, Zakiah Rahman;Rahman, Mohammad Anisur
    • Journal of Forest and Environmental Science
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    • v.36 no.3
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    • pp.207-218
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    • 2020
  • Ashwagandha is an important ancient medicinal crops, being affected with many diseases, among which leaf blight caused by Alternaria alternata has become the constraint resulting in huge yield losses. Continuous usage of chemical methods leads to environment, soil and water pollution. Whereas biological control of diseases is long lasting, inexpensive, eco-friendly and harmless to target organisms. In this context, it is aimed to evaluate five Trichoderma strains viz. Trichoderma virens IMI-392430, T. pseudokoningii IMI-392431, T. harzianum IMI-392432, T. harzianum IMI-392433 and T. harzianum IMI-392434 as bio-control efficacy against A. alternata and growth promoting effect in Ashwagandha. All the Trichoderma strains had varied antagonistic effects against the pathogen. In dual culture technique, the strain T. harzianum IMI-392433 showed maximum percentage inhibition of mycelial growth (54.89%) followed by T. harzianum IMI-392432 (53.83%), T. harzianum IMI-392434 (48.94%) and T. virens IMI-392430, (43.62%) against the pathogen, while the least inhibition percentage was observed with the T. pseudokoningii IMI-392431 (36.60%). The culture filtrate of the Trichoderma strain, T. harzianum IMI-392433 recorded highest inhibition on the mycelial growth (39.05%) and spore germination (80.77%) of pathogen and the lowest was recorded in T. pseudokoningii IMI-392431 (20.45 and 50%). Moreover, seeds treated with spore suspension of the strain T. harzianum IMI-392433 reduced the percentages of disease severity index significantly. The strain T. harzianum IMI-392433 also significantly increased seed germination %, seedling vigor and growth of Ashwagandha. The correlation matrix showed that root yield per plant of Ashwagandha had significant and positive correlation with plant height (r=0.726⁎⁎), number of leaf (r=0.514⁎⁎), number of primary branch (r=0.820⁎⁎), number of secondary branch (r=0.829⁎⁎), fresh plant weight (r=0.887⁎⁎), plant dry weight (r=0.613⁎⁎), root length (r=0.824⁎⁎), root diameter (r=0.786⁎⁎), root dry weight (r=0.739⁎⁎) and fresh root weight (r=0.731⁎⁎). The significant and negative correlation (r=-0.336⁎⁎) was observed with the root yield and percentages of disease severity index. The study recognized that the T. harzianum IMI-392433 strain performed well in inhibiting the mycelial growth and reduced the percentages of disease severity index of pathogen as well as increased the plant growth in Ashwagandha.

Pure Culture Assay with Streptomyces viridosporus T7A for Biodegradability Determination of Oxidized Potato Starch/Polyethylene Films

  • Kim, Meera;Kim, Sung-Hong
    • Preventive Nutrition and Food Science
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    • v.6 no.2
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    • pp.112-116
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    • 2001
  • Oxidized potato starch/polyethylene (PE) cast films were prepared with different percentages of linear low density PE (LLDPE), oxidized potato starch and prooxidant. For the determination of biodegradability of the films, lignocellulose-degrading Streptomyces viridosporus T7A (ATCC 39115) was used. Films were chemically disinfected and incubated with S. viridosporus by shaking at 100 rpm at 37$^{\circ}C$ for eight weeks. Hydroxyl indices of the films by Fourier-Transform Infrared Spectroscopy, mechanical Properties of the films by Instron and film morphology by scanning electron microscope (SEM) were measured. The hydroxyl index of the film containing the oxidized potato starch incubated with S. viridosporus T7A was higher than that of the corresponding control. All the films containing 5% and 10% oxidized starch showed a decrease of tensile strength on the films after incubation when the corresponding uninoculated film was compared. In the oxidized starch/PE film incubated with S. viridosporus T7A, partial destruction of starch and PE was examined by SEM.

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A Study on the Contamination of Bacillus cereus in Baby Food on the Online Market (영유아를 대상으로 한 유통식품 중 Bacillus cereus 오염실태 연구)

  • Park, Min-Jung;Hong, Hae-Geun;Son, Jong-Seong;Kwon, Yeon-Ok;Lim, Young-Sik;Lee, Hyun-Ho;Kim, Gu-Hwan
    • Journal of Food Hygiene and Safety
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    • v.29 no.3
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    • pp.207-210
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    • 2014
  • Bacillus cereus is food poisoning bacteria frequently occured in starch food. Most of the delivery foods for infant is classified as ready-to-cook food. But unlike food for infant and young children, there are no standards and specifications of Bacillus cereus in ready-to-cook food. The purpose of this study is to examine the presence of Bacillus cereus, aerobic bacteria and coliforms in the food for infant and young children sold through internet. B. cereus was detected in 9 samples (8.3%), total aerobic bacteria was detected over $10^6CFU/g$ in 4 samples and coliforms were not detected in any samples. This will provide basic data for standards and specifications of Bacillus cereus in ready-to-cook food.

Cytoprotective Effect of Cinnamomum japonicum Siebold Branch Extracts via Blocking Oxidative Stress in Hepatocytes (간세포에서 산화적 스트레스 억제를 통한 생달가지 추출물의 세포보호 효과)

  • Ji Hye Yang
    • Herbal Formula Science
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    • v.31 no.4
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    • pp.283-293
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    • 2023
  • Objectives : Native to East Asia, Japan, and Korea, Cinnamomum japonicum Siebold (CJ) is renowned for its aromatic leaves and bark. We previously assessed the antioxidant activity of fractionated CJ branches (CJB:70% EtOH extract), including hexane (CJB1), chloroform (CJB2), ethyl acetate (CJB3), butanol (CJB4), and water (CJB5). Our findings revealed that CJB3 exhibited the highest antioxidant activity. Here, we aimed to investigate whether CJB3 possesses cytoprotective effects and induces the activity of antioxidant enzymes in hepatocytes. Methods : As HepG2 cells were the first to exhibit the key characteristics of hepatocytes, we investigated the hepatoprotective effects of CJB3 on HepG2 cells. Results : Before conducting the cell experiment, we checked that CJB3, up to a concentration of 100 ㎍/mL, did not exhibit cytotoxicity toward HepG2 cells. ROS production increased because of t-BHP treatment decreased in a concentration-dependent manner upon CJB3 treatment. We confirmed that CJB3 inhibited t-BHP-induced cell death. CJB3 was found to reverse the expression of proteins associated with t-BHP-induced apoptosis. We also observed that CJB3 induced Nrf2 phosphorylation and the nuclear translocation of Nrf2. And, CJB3 treatment caused a time-dependent enhancement of GCL and NQO1 protein expression. We further confirmed that CJB3 increased the expression of Nrf2 target genes, and this effect was associated with the activation of JNK, p38, and AMPK. Conclusion : CJB3 prevents t-BHP-induced oxidative stress and apoptosis and enhances the expression of Nrf2 target genes via JNK, p38, and AMPK activation. These results suggest that CJB3 is a promising candidate for the treatment of liver diseases.

A Study of ECG Based Cardiac Diseases Diagnoses (심전도 신호를 이용한 심장 질환 진단에 관한 연구)

  • Kim, Hyun-Dong;Yoon, Jae-Bok;Kim, Hyun-Dong;Kim, Tae-Seon
    • Proceedings of the KIEE Conference
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    • 2004.11c
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    • pp.328-330
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    • 2004
  • In this paper, ECG based cardiac disease diagnosis models are developed. Conventionally, ECG monitoring equipments can only measure and store ECG signals and they always require medical doctor's diagnosis actions which are not desirable for continuous ambulatory monitoring and diagnosis healthcare systems. In this paper, two kinds of neural based self cardiac disease diagnosis engines are developed and tested for four kinds of diseases, sinus bradycardia, sinus tachycardia, left bundle branch block and right bundle branch block. For diagnosis engines, error backpropagation neural network (BP) and probabilistic neural network (PNN) were applied. Five signal features including heart rate, QRS interval, PR interval, QT interval, and T wave types were selected for diagnosis characteristics. To show the validity of proposed diagnosis engine, MIT-BIH database were used to test. Test results showed that BP based diagnosis engine has 71% of diagnosis accuracy which is superior to accuracy of PNN based diagnosis engine. However, PNN based diagnosis engine showed superior diagnosis accuracy for complex-disease diagnoses than BP based diagnosis engine.

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