• Title/Summary/Keyword: Graduate Program

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A Study on development of oil boom computation program(OBC Program) for mechanical oil clean-up (해상 유출유의 기계적 회수를 위한 소요 오일붐 산정프로그램(OBC Program) 개발에 관한 연구)

  • Moon, Jung-Hwan;Yun, Jong-Hwui;Ha, Min-Jae;Jeon, Da-Woon
    • Journal of Navigation and Port Research
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    • v.35 no.6
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    • pp.495-500
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    • 2011
  • This paper deals with development of an oil boom computation program (OBC Program) for effective response to oil spill. Currently, programs for showing required minimum quantities of oil skimmers and temporary storage tanks have been developed. However, a program for oil boom has not developed, which causes difficulties in oil spill management. The OBC program was developed using LabVIEW 2010 for solving above problems. The OBC program has following strengths: 1. Both experts and non-experts can calculate required quantities of oil booms, 2. The program can save response time, 3. It can reduce damage to properties and marine environment in proportion to reduced response time.

A Study on Graduate School Choice Conviction Related in Dental Hygienics (치위생학 전공 석사과정 대학원생의 대학원 선택 확신 영향 요인 분석)

  • Moon, Hak-Jin;Lim, Soon-Ryun;Lee, Geun-Yu;Han, Ye-Seul
    • Journal of dental hygiene science
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    • v.15 no.4
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    • pp.495-502
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    • 2015
  • In this study, it was to understand the factors influencing choice conviction of dental hygiene major graduate school of dental hygienist. This study aims to provide the basic data for developing the dental hygienic profession. The study method was complete enumeration of the master's graduate 84 students majoring in dental hygiene in the country 8 graduate school. The results of this study, the analysis of the differences between the external factors and internal factors of graduate school choice, factors of financial accessibility factor related marriage factor. Factor of the education program were more unmarried. The average monthly income was found to have recognized high financial accessibility of factors, education program. Also the carrier is low, factor of the education program it was found to be high. The result of graduate school choice conviction, the more unmarried chosen choice conviction score in high, it choice conviction score was related to monthly income. The result of correlation analysis, external reputation, future, education program if high, it was found to have conviction of graduate school. In graduate school choice conviction external factors of education program and future factor was found to influence the choice of graduate school but internal factors was not found to influence. Therefore, we must seek the support measures that can deepen the sustainable development and dental hygiene of the dental hygienist.

Anti-obesity and Anti-hyperlipidemic Effects of Butanol Soluble Fraction from Methanol Extract of Geranium thunbergii in Sprague-Dawley Rats (Sprague-Dawley계 흰쥐에서 현지초 부탄올 분획물의 항비만 및 항고지혈증 효과)

  • Kim, Se-Gun;Lamichhane, Ramakanta;Sharma, Dipak Kumar;Lee, Kyung-Hee;Choi, Jongwon;Jung, Hyun-Ju
    • Korean Journal of Pharmacognosy
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    • v.45 no.1
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    • pp.69-76
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    • 2014
  • The purpose of this study was to investigate anti-obesity and anti-hyperlipidemic effects of extracts from Geranium thunbergii (GT) in high-fat-diet-induced obese rats. Animals were randomly divided into four groups [normal diet, high fat diet, MeOH extract of GT (GTM), and BuOH fraction of GT (GTB)] and GT samples were treated with dose of 100 mg/kg for 8 weeks. It was observed that GTB-treated group significantly reduced body weight gain, food intake, epididymal fat weight, and triglyceride level in serum and liver compared to control group. The rats fed GTB also decreased contents of thiobarbituric acid-reactive substances (TBARS), hydroxyl radical, and xanthin oxidase (XO) increased by high fat diet. Furthermore, the anti-oxidant enzymes such as superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase were increased by GTB treatment. The experimental results indicate that GTB has anti-obesity and anti-hyperlipidemic effects, as well as radical scavenging activity.

Heat tolerance in Brazilian hair sheep

  • Seixas, Luiza;Melo, Cristiano Barros de;Tanure, Candice Bergmann;Peripolli, Vanessa;McManus, Concepta
    • Asian-Australasian Journal of Animal Sciences
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    • v.30 no.4
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    • pp.593-601
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    • 2017
  • Objective: The aim of this study was to evaluate heat tolerance using heat tolerance indices, physiological, physical, thermographic, and hematological parameters in Santa Ines and Morada Nova sheep breeds in the Federal District, Brazil. Methods: Twenty-six adult hair sheep, one and a half years old, from two genetic groups (Santa Ines: 12 males and 4 females; Morada Nova: 7 males and 3 females) were used and data (rectal temperature, respiratory rate, heart rate, skin temperatures; hematological parameters) were collected during three consecutive days, twice a day (morning and afternoon), with a total of six repetitions. Also physical parameters (biometric measurements, skin and hair traits) and heat tolerance indices (temperature-humidity index, Iberia and Benezra) were evaluated. The analyses included analyses of variance, correlation, and principal components with a significance level of 5%. Results: The environmental indices, in general, indicate a situation of thermal discomfort for the animals during the afternoon. Breed significantly influenced (p<0.001) physiological and physical characteristics of skin, hair, biometric measurements and Iberia and Benezra heat tolerance indices. Santa Ines animals were bigger and had longer, greater number and darker hair, thicker skin, greater respiratory rate and Benezra index and lower Iberia index compared with Morada Nova breed. Conclusion: Although both breeds can be considered adapted to the environmental conditions of the region, Morada Nova breed is most suitable for farming in the Midwest region. The positive correlation found between the thermographic temperatures and physiological parameters indicates that this technique can be used to evaluate thermal comfort. Also, it has the advantage that animals do not have to be handled, which favors animal welfare.

Purification and Characterization of 2,4-Dichlorophenol Oxidizing Peroxidase from Streptomyces sp. AD001

  • Jeon, Jeong-Ho;Yun-Jon Han;Tae-Gu kang;Eung-Soo Kim;Soon-Kwang Hong;Byeong-Chul Jeong
    • Journal of Microbiology and Biotechnology
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    • v.12 no.6
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    • pp.972-978
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    • 2002
  • Streptomyces sp. AD001 is a Gram-positive soil actinomycetes secreting an uncharacterized 2,4-dichlorophenol (DCP) oxidizing enzyme, whose activity is similar to the previously known Actinomycetes lignin-peroxidase (ALiP). This extracellular peroxidase was purified from Streptomyces sp. AD001 as a single protein band on an SDS-PACE by ammonium sulfate fractionation, Q-sepharose, concanavalin A, and Bio-Gel HTP column chromatographies. The molecular mass of the purified peroxidase was determined by SDS-PAGE to be 45.2 kDa, and 49.7 kDa with MALDI-TOF-MS, respectively. The highest level of peroxidase activity was observed at pH 7.5 and $30^{\circ}C$. The amino terminal sequence of the purified peroxidase (G-E-P-E-E-G-N-V-D-G-T-L) showed no significant homologies to my known proteins, suggesting that Streptomyces sp. AD001 may secrete a novel kind of bacterial peroxidase Initial rate kinetic data of the 2,4-DCP oxidation were best modeled with a random-binding bireactant system.

Characterization of a 27 kDa Fibrinolytic Enzyme from Bacillus amyloliquefaciens CH51 Isolated from Cheonggukjang

  • Kim, Gyoung-Min;Lee, Ae-Ran;Lee, Kang-Wook;Park, Ae-Yong;Chun, Ji-Yeon;Cha, Jae-Ho;Song, Young-Sun;Kim, Jeong-Hwan
    • Journal of Microbiology and Biotechnology
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    • v.19 no.9
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    • pp.997-1004
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    • 2009
  • Bacillus amyloliquefancies CH51 isolated from cheonggukjang, a traditional Korean fermented soy food, has strong fibrinolytic activity and produces several fibrinolytic enzymes. Among four different growth media, tryptic soy broth was the best in terms of supporting cell growth and fibrinolytic activity of this strain. A protein with fibrinolytic activity was partially purified from the culture supernatant by CM-Sephadex and Phenyl Sepharose column chromatographies. Tandem mass spectrometric analysis showed that this protein is a homolog of AprE from B. subtilis and it was accordingly named AprE51. The optimum pH and temperature for partially purified AprE51 activity were 6.0 and $45^{\circ}C$, respectively. A gene encoding AprE51, aprE51, was cloned from B. amyloliquefaciens CH51 genomic DNA. The aprE51 gene was overexpressed in heterologous B. subtilis strains deficient in fibrinolytic activity using an E. coli-Bacillus shuttle vector, pHY300PLK.

The effects of intra-articular resiniferatoxin on monosodium iodoacetate-induced osteoarthritic pain in rats

  • Kim, Youngkyung;Kim, Eun-hye;Lee, Kyu Sang;Lee, Koeun;Park, Sung Ho;Na, Sook Hyun;Ko, Cheolwoong;Kim, Junesun;Yooon, Young Wook
    • The Korean Journal of Physiology and Pharmacology
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    • v.20 no.1
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    • pp.129-136
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    • 2016
  • This study was performed to investigate whether an intra-articular injection of transient receptor potential vanilloid 1 (TRPV1) receptor agonist, resiniferatoxin (RTX) would alleviate behavioral signs of arthritic pain in a rat model of osteoarthritis (OA). We also sought to determine the effect of RTX treatment on calcitonin gene-related peptide (CGRP) expression in the spinal cord. Knee joint inflammation was induced by intra-articular injection of monosodium iodoacetate (MIA, $8mg/50{\mu}l$) and weight bearing percentage on right and left hindpaws during walking, paw withdrawal threshold to mechanical stimulation, and paw withdrawal latency to heat were measured to evaluate pain behavior. Intra-articular administration of RTX (0.03, 0.003 and 0.0003%) at 2 weeks after the induction of knee joint inflammation significantly improved reduction of weight bearing on the ipsilateral hindlimb and increased paw withdrawal sensitivity to mechanical and heat stimuli. The reduction of pain behavior persisted for 3~10 days according to each behavioral test. The MIA-induced increase in CGRP immunoreactivity in the spinal cord was decreased by RTX treatment in a dose-dependent manner. The present study demonstrated that a single intra-articular administration of RTX reduced pain behaviors for a relatively long time in an experimental model of OA and could normalize OA-associated changes in peptide expression in the spinal cord.

Automatic Noise Removal and Peak Detection Algorithm for ECG Measured from Capacitively Coupled Electrodes Included within a Cloth Mattress Pad (침대 패드 형태의 용량성 전극에서 측정된 심전도 신호를 처리하기 위한 자동 잡음 제거 및 피크 검출 알고리즘)

  • Lee, Won Kyu;Lee, Hong Ji;Yoon, Hee Nam;Chung, Gih Sung;Park, Kwang Suk
    • Journal of Biomedical Engineering Research
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    • v.35 no.4
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    • pp.87-94
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    • 2014
  • Recent technological advances have increased interest in personal health monitoring. Electrocardiogram(ECG) monitoring is a basic healthcare activity and can provide decisive information regarding cardiovascular system status. In this study, we developed a capacitive ECG measurement system that can be included within a cloth mattress pad. The device permits ECG data to be obtained during sleep by using capacitive electrodes. However, it is difficult to detect R-wave peaks automatically because signals obtained from the system can include a high level of noise from various sources. Because R-peak detection is important in ECG applications, we developed an algorithm that can reduce noise and improve detection accuracy under noisy conditions. Algorithm reliability was evaluated by determining its sensitivity(Se), positive predictivity(+P), and error rate(Er) by using data from the MIT-BIH Polysomnographic Database and from our capacitive ECG system. The results showed that Se = 99.75%, +P = 99.77%, and Er = 0.47% for MIT-BIH Polysomnographic Database while Se = 96.47%, +P = 99.32%, and Er = 4.34% for our capacitive ECG system. Based on those results, we conclude that our R-peak detection method is capable of providing useful ECG information, even under noisy signal conditions.

Development of One-step Simultaneous Immunochromatographic Assay for Rapid Analysis of Aflatoxin B1 and Ochratoxin A

  • Shim, Won-Bo;Kim, Gyeong-Yeol;Ryu, Hee-Jung;Nam, Min-Ji;Chung, Duck-Hwa
    • Food Science and Biotechnology
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    • v.18 no.3
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    • pp.641-648
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    • 2009
  • A one-step simultaneous immunchromatographic (OS-ICG) assay using colloidal gold-monoclonal antibody (gold-MAb) conjugates was developed for the rapid multianalysis of aflatoxin B1 (AFB1) and ochratoxin A (OTA) in feed samples. Visual detection limits for AFB1 and OTA were 0.5 and 2.5 ng/mL, respectively, and the results were obtained within 15 min. Matrix interference from the feed extracts was efficiently reduced by appropriate dilution with buffer. Cut-off values of the OS-ICG assay for the feed spiked with AFB1/OTA mixtures (5/5, 10/10, 25/25, 50/55, 100/100 ${\mu}g/kg$) were 10 and 50 ${\mu}g/kg$ for AFB1 and OTA. The comparative analyses of 65 feed samples by OS-ICG, enzyme-linked immunosorbent assay (ELISA), and high performance liquid chromatography (HPLC) showed good agreement. In this study, we confirmed that simultaneous analysis based on immunoassay is possible and it can be used as an on-site multianalysis of AFB1 and OTA in feed, food, and agricultural products.

Evaluation of Rhophilin Associated Tail Protein (ROPN1L) in the Human Liver Fluke Opisthorchis viverrini for Diagnostic Approach

  • Geadkaew-Krenc, Amornrat;Grams, Rudi;Phadungsil, Wansika;Chaibangyang, Wanlapa;Kosa, Nanthawat;Adisakwattana, Poom;Dekumyoy, Paron
    • Parasites, Hosts and Diseases
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    • v.58 no.4
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    • pp.475-479
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    • 2020
  • Tegumental and excretory-secretory proteins are reported as diagnostic antigens for human opisthorchiasis. Rhophilin associated tail protein1-like (OvROPN1L) protein of Opisthorchis viverrini sperm tail showed potential as a diagnostic antigen. The OvROPN1L recombinant fragments were assayed for diagnostic antigenicity for human opisthorchiasis using indirect ELISA. The strongest antigenic region was a N-terminus peptide of M1 - P56. One synthetic peptide (P1, L3-Q13) of this region showed the highest antigenicity to opisthorchiasis. Sera from other parasitic infections including Strongyloides stercoralis, hookworm, Taenia spp, minute intestinal flukes, Paragonimus spp showed lower reactivity to P1. Peptide P1 is located in the disordered N-terminus of ROPN1L supporting its suitability as linear epitope. In the Platyhelminthes the N-terminal sequence of ROPN1L is diverging with taxonomic distance further suggesting that peptide P1 has potential as diagnostic tool in the genus Opisthorchis/Clonorchis. It should be further evaluated in combination with peptides derived from other O. viverrini antigens to increase its diagnostic power.