• Title/Summary/Keyword: Resistant.

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Study on Quality of Yukwa by Substitution with Resistant Starch (저항전분 대체에 따른 유과의 품질에 관한 연구)

  • Lee, Mi Hye;Oh, Myung Suk
    • Journal of the East Asian Society of Dietary Life
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    • v.26 no.5
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    • pp.407-417
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    • 2016
  • Effects of resistant starch as a functional substitute on the quality of Yukwa were determined. Replacement ratios of resistant starch were 2, 4, and 6% of glutinous rice flour. Regarding pasting properties of Yukwa dough replaced with resistant starch, initial pasting temperature significantly increased and peak viscosity significantly decreased with increasing resistant starch. The moisture contents of bandegi and Yukwa base replaced with resistant starch were higher than that of the control. The expansion ratio of Yukwa base replaced with resistant starch significantly decreased with increasing resistant starch, and there were no significant differences in the oil absorption ratio. Lightness (L) of Yukwa base replaced with resistant starch increased significantly with increasing resistant starch. Appearance of Yukwa base replaced with resistant starch showed a shortened length and increased width with increasing resistant starch, and cross-section showed an oval shape, fine air cell distribution, and increased outer layer thickness. Hardness and peak number increased significantly with increasing resistant starch. The overall acceptability of Yukwa base replaced with 6% resistant starch was the highest among the samples, but the result was not significant. The above results show that resistant starch substitution in Yukwa improved the texture and further could improve health functionality due to its dietary fiber content. Resistant starch was appropriate as a 6% replacement for glutinous rice flour in Yukwa.

An experimental study on flame resistant performance by flame resistant method and agents (방염법 및 방염액 종류별 방염성능에 관한 실험적 연구)

  • Lim, Nam-Gi;Her, Jae-Won;Park, Cheul-Woo
    • Journal of the Korea Institute of Building Construction
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    • v.8 no.6
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    • pp.117-122
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    • 2008
  • This study targets to improve and complement the problem of existing flame resistant processing with flame resistant performance the same as existing flame resistant agents or better, keeping wooden surface & feel as they are, and to attempt to raise flame resistant performance and economic efficiency by applying phosphorous flame resistant agents, a colorlessness, odorless new product to woods for an improvement of flame resistant performance for wooden nature and to offer a basic data for an uniform high-performance for flame resistant woods by reinforcing wooden durability and usability.

Study on Antibiotic Resistant Enterobacteria in Pharmaceutical Effluent (제약회사 폐수처리장 방류수 중 항생제 내성 Enterobacteria에 관한 연구)

  • Kim, Jae-Gun;Kim, Young Jin
    • Journal of Environmental Health Sciences
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    • v.42 no.1
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    • pp.34-40
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    • 2016
  • Objectives: This study aims to examine the concentration, diversity, and antibiotic characteristics of penicillin G resistant enterobacteria present in pharmaceutical effluent. Methods: Water sampling was performed from a pharmaceutical company in Gyeonggi-do Province, Korea in March 2015. Water samples were plated in triplicate on tryptic soy agar plates with 32 mg/L of penicillin G. Penicillin G resistant enterobacteria were selected from the effluent and were subjected to 16S rRNA analysis for penicillin G resistant species determination. Identified resistant strains were tested for resistance to various antibiotics. Results: Penicillin G resistant enterobacteria were present at 6.2% as to culturable heterotrophic bacteria. Identified penicillin G resistant enterobacteria exhibited resistance to more than 10 of the antibiotics studied. These resistant bacteria are gram negative and are closely related to pathogenic species. Conclusion: Multi-antibiotic resistant bacteria in the effluent suggest a need for disinfection and advanced oxidation processes for pharmaceutical effluents.

STUDIES OF EFFECTS ON COPPER RESISTANCE IN YEAST AS INFLUENCED BY DESOXYRIBONUCLEATES (Saccharomyces cereisiase의 동저항변이에 미치는 DNA의 영향에 관한 연구)

  • 이민재
    • Journal of Plant Biology
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    • v.1 no.1
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    • pp.1-6
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    • 1958
  • 1. Study was made to investigate effects of desoxyribonucleates on copper-resistance in yeast. 2. It is found that the resistant strain there exists the phenomic lag. 3. In the occurrence of the resistant strain there exists the phenomic lag. 4. Desoxyribonucleate isolated from copper resistant culture is capable of inducing the resistant strain, which is the same type as donor of the resistant type. It accelerated the rate of variation to the resistant, but it is of no effect on the resistant strain. 5. Desoxyribonucleate derived from non-resistant type inhibits growth of the resistant strain and delays the initial phase of growth. However, it is of no effect on the sensitive strain. It is concluded that desoxyribonucleate derived from resistant culture is capable of inducing the resistance, however, nonresistant type desoxyribonucleate is of no effect on inducing the resistance.

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Study on Oxytetracycline Resistant Bacteria in the Surface Water Environment (하천에서의 Oxytetracycline 내성주에 관한 연구)

  • Kim, Young Jin;Kim, Jong Oh
    • Journal of Environmental Health Sciences
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    • v.41 no.1
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    • pp.40-48
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    • 2015
  • Objectives: This study aims to understand the concentration, diversity, and antibiotic characteristics of oxytetracycline resistant bacteria present in a surface water environment. Methods: Water sampling was performed in Cheongmi Stream in Gyeonggi-do, Korea in February and August 2014. Water samples collected from two sites were plated in triplicate on tryptic soy agar plates with 30 mg/L of oxytetracycline. Oxytetracycline resistant bacteria were selected from surface water in Cheongmi Stream and were subjected to 16S rDNA analysis for oxytetracycline resistant species determination. Identified resistant strains were tested for resistance to various antibiotics. Results: Results from this study indicate that the dominant resistant organisms in this aquatic environment are from family Acinetobacter and family Aeromonas. As to culturable heterotrophic bacteria, Oxytetracycline resistant bacteria were present 0.45-0.93% during winter and 0.08-0.38% during summer. Most oxytetracycline resistant bacteria exhibited resistance to more than ten of the antibiotics studied. The diversity of oxytetracycline resistant bacteria in winter was higher than in summer. Conclusion: Most of these resistant bacteria are Gram negative and are closely related to pathogenic species. These results suggest that increasing multi-antibiotic resistant bacteria in the surface water environment has a close relation to the reckless use of antibiotics in livestock.

Treatment-Resistant Schizophrenia : Pathophysiology and Treatment (치료 저항성 조현병의 이해와 치료)

  • Kim, Euitae
    • Journal of Korean Neuropsychiatric Association
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    • v.57 no.3
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    • pp.230-234
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    • 2018
  • A large proportion of patients with schizophrenia show a poor response to first-line antipsychotic drugs, which is termed treatment-resistant schizophrenia. Previous studies found that a different neurobiology might underlie treatment-resistant schizophrenia, which necessitates the development of different therapeutic approaches for treating treatment-resistant schizophrenia. This study reviewed previous studies on the pathophysiology of treatment-resistant schizophrenia and the pharmacological intervention, and forthcoming investigations of treatment-resistant schizophrenia are suggested.

Current Status of Infection Control of Multidrug Resistant Organisms in Hospitals with more than 200beds in the Republic of Korea (국내 200병상이상 의료기관의 다약제 내성균 감염관리 실태조사)

  • Oh, Hyang-Soon
    • The Korean Journal of Health Service Management
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    • v.8 no.4
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    • pp.163-173
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    • 2014
  • This study was performed to investigate the current status of isolation precautions of multidrug resistant organisms(MDROs) in general hospitals with more than 200bed. The questionnaires were mailed from 3rd, April 2013 to 30th, April 2013. Methicillin resistant Staphylococcus aureus:(MRSA), vancomycin resistant Staphylococcus aureus:(VRSA), vancomycin resistant Enterococcus(VRE), multidrug-resistant Acinetobacter baumannii, carbapenem-resistant Enterobacteriaceae multidrug-resistant Pseudomonas aeruginosa were enrolled. MRSA(100.0%) and VRE(98.7%) were isolated respectively. VRE(97.3%) and MRSA(64.0%) were regulated strictly respectively. VRE(91.5%) and VRSA(50.7%) were isolated in a single room respectively. Hospital being located in Seoul(p<0.001), and beds(${\geq}600$)(p=0.008) were different significantly. The isolation space limitation(71.1%) was the highest difficulty. The development of refunding the costs of the extra supplies and other hygienic materials for infection control was discovered as the most urgent strategy.

Antibiotic Susceptibity of Pathogenic Microorganisms Isolated in Korea -The Problem of Multiple Antibiotic Resistance- (한국에서 분리된 병원성 세균의 항균제에 대한 감수성 -특히 다제내성을 중심으로-)

  • Park, Seung-Hahm
    • The Journal of the Korean Society for Microbiology
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    • v.5 no.1
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    • pp.1-8
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    • 1970
  • This report is to observe the rate of multiple resistance to various antibiotics among staphylococcus aureus and E. coli which were isolated with high frequency at our department during 1969. 1. One hundred fifty two strains(20.6%) resistant to four antibiotics multiple resistant was the highest incidence among 739 strains of Staphylococcus aureus. 2. Regarding the multiple antibiotic resistant of Staphylococcus aureus, 75strains(10.1%) to SA. PC. TC the three antibiotics resistant, have been observed, with the highest incidence, and next to this, 69 strains(9.3%) to SA. PC. SM. TC the four autibiotics resistant, and 68 strains(9.2%) to SA. PC. SM. CM. TC. SM. the six antibiotics resistant, have been observed in descending order. 3. The case of one hundred twenty seven strains(28.0%) of the six antibiotic multiple resistant among 454 strains of Escherchia coli was the highest incidence. 4. Concerning the multiple antibiotic resistant of Escherichia coli, 70 strains(l5.4%) to SA. SM. CM. TC. EM. FD. the six antibiotics resistant, have been observed, with the highest incidence, and next to this, 59 strains(l3.0%) to SA. SM. CM. TC. EM. FD. AC the seven antibiotics resistant, and 42 strains(9.3%) to SA. SM. CM. TC. EM. FD. KM. AC the eight antibiotics resistant have been observed in descending order.

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Antibacterial Activity of Glycyrrhizae Radix against Methicillin-resistant Staphylococcus (감초의 메티실린 내성 황색포도구균에 대한 생육억제 효과)

  • 김미랑;정병무;신정인;윤철호;정지천;서운교
    • The Journal of Korean Medicine
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    • v.23 no.3
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    • pp.223-232
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    • 2002
  • Objectives : Methicillin-resistant Staphylococcus aureus (MRSA) CCARM 3251 and S. aureusKCTC 1928 have been known to be resistant to many kinds of antibiotics. The extract of Glycyrrhizae Radix showed antibacterial activity against MRSA and antibiotics-resistant S. aureus. Methods : We examined the effects of the water-soluble extract and the methanol-soluble extract of Glycyrrhizae Radix on MRSA and antibiotic-resistant S. aureus. The methanolic extract was further fractionated with organic solvents such as hexane, chloroform, and ethyl acetate in that order. Results and Conclusions : The methanol-soluble extract of Glycyrrhizae Radix showed relatively high antibacterial activity against MRSA and antibiotic-resistant S. aureus. However, the water-soluble extract of Glycyrrhizae Radix showed no antibacterial activity against MRSA and antibiotic-resistant S. aureus. Among the fractions tested, the chloroform fraction showed the highest antibacterial activity against MRSA and antibiotic-resistant S. aureus. The methanol-soluble extract of Glycyrrhizae Radix minimal inhibitory concentrations (MICs) against MRSA and antibiotics-resistant S. aureus were $5{\;}mg/m{\ell}$ in both. The methanol-soluble extract of Glycyrrhizae Radix was separated using thin-layer chromatography and detected with UV -detector. Further study should be carried out to identify which effects cell growth inhibition of MRSA and antibiotics-resistant S. aureus.

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The Research of RGB Photo Resistant In the Ink-Jet System

  • Huang, Chi-Yuan;Liu, Chia-I;Tsao, Keng-Yu;Kuo, Ju-Chien;Wu, Jing-Yi;Lo, Yu-Cheng;Liu, Pei-Yu;Wang, Jiun-Ming;Li, Huai-An
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08b
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    • pp.1583-1585
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    • 2007
  • The purpose of this research is to control proper processing condition of RGB photo resistant in the ink-jet process increasing processing ability by adding additives. The viscosities of modified RGB photo resistant were $10{\sim}14cps$ and the additives could decreased agglomeration and flowing trace of photo resistant effectively. Another way, the adhesion between photo resistant and glass substrate was improved by modifying photo resistant and substrate. The surface tensions of modified photo resistant were same as that of original RGB photo resistant. The additives appeared a better compatibility with photo resistant, and the micelle of photo resistant did not be broken during modified process.

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