• Title/Summary/Keyword: community reaction

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Enhanced Biodegradation of Total Petroleum Hydrocarbons (TPHs) in Contaminated Soil using Biocatalyst

  • Owen, Jeffrey S.;Pyo, Sunyeon;Kang, Guyoung
    • Journal of Soil and Groundwater Environment
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    • v.20 no.5
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    • pp.47-51
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    • 2015
  • Biocatalytic degradation of total petroleum hydrocarbons (TPHs) in contaminated soil by hemoglobin and hydrogen peroxide is an effective soil remediation method. This study used a laboratory soil reactor experiment to evaluate the effectiveness of a nonspecific biocatalytic reaction with hemoglobin and H2O2 for treating TPH-contaminated soil. We also quantified changes in the soil microbial community using real-time PCR analysis during the experimental treatment. The results show that the measured rate constant for the reaction with added hemoglobin was 0.051/day, about 3.5 times higher than the constant for the reaction with only H2O2 (0.014/day). After four weeks of treatment, 76% of the initial soil TPH concentration was removed with hemoglobin and hydrogen peroxide treatment. The removal of initial soil TPH concentration was 26% when only hydrogen peroxide was used. The soil microbial community, based on 16S rRNA gene copy number, was higher (7.1 × 106 copy number/g of bacteria, and 7.4 × 105 copy number/g of Archaea, respectively) in the hemoglobin catalyzed treatment. Our results show that TPH treatment in contaminated soil using hemoglobin catalyzed oxidation led to the enhanced removal effectiveness and was non-toxic to the native soil microbial community in the initial soil.

Assessment of the Changes in the Microbial Community in Alkaline Soils using Biolog Ecoplate and DGGE (Biolog Ecoplate와 DGGE 방법을 이용한 알칼리화 토양의 미생물군집 변화 평가)

  • Lee, Eun Young;Hong, Sun Hwa
    • KSBB Journal
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    • v.28 no.5
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    • pp.275-281
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    • 2013
  • Soil microbial community analysis of farmland soil sprayed with lye in order to use fertilizer in Nigeria was performed. As a control, two kinds of soils not sprayed with lye, located in Eungo and Lagos with general practice in agriculture was selected. Soil sprayed with lye was pH 8.25 through alkalization reaction, while the other soil samples were pH 6.22 and 5.94. Substrate utilization and species diversity index of soil sprayed with lye were low than that of the other soils with the analysis of Biolog ecoplate. As a result of principal component analysis, the relationship between three samples was low. Microbial community analysis was performed by DGGE and most of them were soil uncultured bacterium. Especially, Uncultured Acidobacteria and Uncultured Methylocystis sp., which had been isolated from the rhizosphere of soybean grown in that site were discovered in the soil sprayed with lye.

Investigation on Perceptions, Attitudes, and Contributing Factors to Spontaneous Adverse Drug Reaction Reporting among Community Pharmacists: Results from a Web-based Survey (지역 약사의 자발적 부작용 보고에 대한 인식 및 태도와 영향요인 조사: 설문조사 결과를 중심으로)

  • Lee, Mo-Se;Choi, Ah-Hyung;Jang, Bo-Hyun;Kim, Na-Young;Lee, Jung-Min;Shin, Ju-Young;Jeon, Ha-Lim
    • Korean Journal of Clinical Pharmacy
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    • v.29 no.2
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    • pp.125-132
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    • 2019
  • Objective: To examine the perceptions and attitudes toward spontaneous adverse drug reaction (ADR) reporting system among community pharmacists and identify factors that influence reporting, by implementing a survey. Methods: A structured questionnaire was developed and distributed online. Request for the survey was posted on the website of pharmacy's billing program, and the survey was conducted for 8 days. We collected the participants' response on their work environment, experience of ADR reporting, and their perception and attitude on the reporting system. Multivariate logistic regression was used to evaluate factors influencing ADR reporting. Results: A total of 382 pharmacists participated in the survey. Significant contributing factors for reporting level were age (odds ratio [OR], 0.90; 95% confidence interval [CI], 0.84-0.96), knowledge of reporting method (OR, 53.56; 95% CI, 9.10-315.41), installation of reporting program (OR, 31.92; 95% CI, 4.16-244.75), and encouragement from the Korean pharmaceutical association (OR, 4.13; 95% CI, 1.11-15.35). Regarding the attitude toward spontaneous ADR reporting system, 'lack of time for reporting' (OR, 0.29; 95% CI, 0.15-0.53) and 'complexity of reporting procedure' (OR, 0.51; 95% CI, 0.31-0.84), were associated with a low likelihood of reporting. Conclusion: Our results indicated that the knowledge of ADR reporting method, installation of the reporting program, and encouragement from the Korean Pharmaceutical Association contribute to active reporting. It is necessary to simplify the reporting method, make the ADR reporting program user-friendly, and provide educational interventions to increase participation in spontaneous reporting by the community pharmacists.

Bacterial Communities Developing during Composting Processes in Animal Manure Treatment Facilities

  • Yamamoto, Nozomi;Otawa, Kenichi;Nakai, Yutaka
    • Asian-Australasian Journal of Animal Sciences
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    • v.22 no.6
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    • pp.900-905
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    • 2009
  • We analyzed succession of the bacterial communities during composting of animal manure in three individual facilities. Polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE) targeting for the bacterial 16S rRNA gene were used to clarify the changes of bacterial community throughout each composting process. Our study revealed that the bacterial community structures differed during the composting process. The bacterial community in composting of facility A showed little change throughout the process. In the compost sample from facility B, its community had a small shift as the temperature increased. In compost from facility C, the temperature dynamically changed; it was shown that various bacterial communities appeared and disappeared as follows: in the initial phase, the members of phylum Bacteroidetes dominated; in the thermophilic phase, some bacteria belonging to phylum Firmicutes increased; towards the end, the community structure consisted of three phyla, Bacteroidetes, Firmicutes, and Proteobacteria. This study provides some information about the bacterial community actually present in field-scale composting with animal manure.

Effects of Online Community Characteristics on Customer Reaction - Based on the Differences of Customer's Gender and Self-Construal Level (온라인 커뮤니티특징이 소비자 반응에 미치는 영향 - 소비자의 성별과 자기해석 수준차이를 중심으로)

  • Shin, Jong-Kuk;Moon, MinKyung;Kim, JaeHun
    • Journal of Digital Convergence
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    • v.16 no.3
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    • pp.261-273
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    • 2018
  • The purpose of this study is to find out how the online brand community characteristics affect customer behavior according to self-construal level and gender difference. The characteristics of online community are divided into interaction, objectivity, information provision, and activity reward. First, interactivity and activity compensation among the characteristics of online community have a positive effect on brand community commitment. On the other hand, the effect of purpose and information provision is insufficient. Second, the greater the commitment to the brand community, the higher the WOM effect is. Finally, this study shows that customers with dependent self-construal tendencies have more brand community support than customers with independent self-construal tendencies, and females show more brand community support than males. This study suggests an efficient marketing approach to companies through a brand community commitment by understanding the intrinsic motivation of consumers' self-construal level.

Analysis of Microbial Community in the TPH-Contaminated Groundwater for Air Sparging using Terminal-Restriction Fragment Length Polymorphism (유류오염대수층 공기분사공정상의 미생물 제한효소다형성법 적용 평가)

  • Lee, Jun-Ho;Lee, Sang-Hoon;Cho, Jae-Chang;Park, Kap-Song
    • Journal of Korean Society on Water Environment
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    • v.22 no.4
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    • pp.590-598
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    • 2006
  • In-situ Air sparging (IAS) is a groundwater remediation technique, in which organic contaminants volatilize into air form the saturated to vadose zone. This study was carried out to evaluate the effect of sludge and soil microbial community structure on air sparging of Total Petroleum Hydrocarbons (TPH) contaminated groundwater soils. In the laboratory, diesel (10,000 mg TPH/kg) contaminated saturated soil. The Air was injected in intermittent (Q=1500 mL/min, 10 minute injection and 10 minute idle) modes. For Terminal-Restriction Fragment Length Polymorphism (T-RFLP) analysis of eubacterial communities in sludge of wastewater treatment plants and soil of experiment site, the 16S rDNA was amplified by Polymerase Chain Reaction (PCR) from the sludge and the soil. The obtained 16S rDNA fragments were digested with Msp I and separated by electrophoresis gel. We found various sequence types for experiment with sludge soil samples that were closely related to Agrococcus, Flavobacterium, Thermoanaerobacter, Flexibacter and Shewanella, etc, in the clone library. The results of the present study suggests that T-RFLP method may be applied as a useful tool for the monitoring in the TPH contaminated soil the fate of microorganisms in natural microbial community.

Epidemiological Change on Paragonimiasis in Ung Chi Myun, Bo Sung Gun (보성군(寶城郡) 태치면(態峙面)에 있어서의 폐흡충증(肺吸虫症)의 역학적(疫學的) 추이(推移))

  • Lee, Joo-Sang;Bae, Pyung-Weon;Rim, Han-Jong;Shin, Hong-Shik
    • Journal of agricultural medicine and community health
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    • v.5 no.1
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    • pp.40-45
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    • 1980
  • Paragonomiasis is a common trematodiasis of medical importance and one of public health. problems in many araes af southern part of Korea. Authars carried out the survey for human paragonimiasis in Ung Chi Myun, Bo Sung Gun during 1968 to 1979 by the use of intradermal screening test with veronal buffered saline antigens. In 1968 and 1978, inhabitants of all age groups in Ung Chi Myun were examined. In 1979, 1, 119 consisting of primary school children and middle school students in Ung Chi Myun and 521 high school students in Beol Gyo Eup were examined. The following results were obtained in this survey. 1) In 1968, 136 inhabitants were showed 61.0% positive reaction (66.3% in male, 53.6% in female). The positive rates were similar in each age groups. 2) In 1978, 207 Inhabitants were showed 32.9% positive reaction (36.3% in male, 29.4% in female). The positive rate was shown as high as 30% in the age groups of over 10 years old. 3) In 1979, primary school children and middle school students in Ung Chi Myun were showed 15.8% positive reaction and high school students in Beol Gyo Eup were showed 6.9% positive reaction.

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A Study on the Factors Influencing Medication Compliance At Community Pharmacies - Based on The 3rd (2005) Korea National Health and Nutrition Examination Survey Data - (외래약국 복약이행도에 영향을 미치는 요인 연구 - 제3기(2005년) 국민건강영양조사자료를 근거로 -)

  • Kwon, Jin-Won;Park, Eun-Ja;Sohn, Hyun-Soon
    • YAKHAK HOEJI
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    • v.55 no.6
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    • pp.500-509
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    • 2011
  • This study was to identify factors influencing drug compliance based on the subjects' interview regarding community pharmacy utilization for 2 weeks, in 2005 KNHANES. Good compliance was regarded as important factors in improving the effectiveness and minimizing adverse drug reaction, resulting in reducing the medical costs. 83% of total 11,208 pharmacy visits in 7,066 subjects showed good compliance. Good satisfaction for pharmacist's medication counseling (OR=2.23, 95% CI 1.92-2.58), higher out-of-pocket money (OR=1.32, 95% CI 1.14-1.54), and users of prescription drugs than non-prescription (OR=2.21, 95% CI 1.91-2.57) drugs were significant factors for better compliance. Disease of nervous system and mental and behavioral disorders showed lower drug compliance.

The Emergency Care Experience and Demand for Support of School Nurse (보건교사의 응급간호 경험과 지원요구)

  • Yoon, Jae Hee;Lee, In Sook
    • Research in Community and Public Health Nursing
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    • v.28 no.2
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    • pp.182-195
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    • 2017
  • Purpose: This study explores school nurses' emergency care experiences and their needs for systemic institutional support. Methods: Data were collected in 2016 from the interviews with five focus groups comprising thirty school nurses. Qualitative content analysis was then performed using the collected data. Results: The study found that school nurses were vulnerable to over-reaction in uncertain situations as the school's sole health service provider. The study's findings are divided into ten categories. 1) Major obstacles to overcome as the sole health service provider, 2) Assessing an uncertain situation and making appropriate decisions, 3) Providing limited first aid while maintaining control over the situation, 4) Referring or transferring a student to a hospital that creates tensions and raises cost, 5) Becoming an advocate for information disclosure and treatment, 6) Ensuring follow-up actions and proper transfer of responsibility, 7) Making preparations for future emergency, 8) Responding to conflicts arising from over-reaction as a safeguard and professional expertise, 9) Need for the development of standardized manual for school emergency care, 10) Need for practical case-based training. Conclusion: The findings of this study should contribute to the development of the programs aimed at improving school emergency care and the professional competence of school nurse.

Discriminative validity of the timed up and go test for community ambulation in persons with chronic stroke

  • An, Seung Heon;Park, Dae-Sung;Lim, Ji Young
    • Physical Therapy Rehabilitation Science
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    • v.6 no.4
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    • pp.176-181
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    • 2017
  • Objective: The timed up and go (TUG) test is method used to determine the functional mobility of persons with stroke. Its reliability, validity, reaction rate, fall prediction, and psychological characteristics concerning ambulation ability have been validated. However, the relationship between TUG performance and community ambulation ability is unclear. The purpose of this study was to investigate whether the TUG performance time could indicate community ambulation levels (CAL) differentially in persons with chronic stroke. Design: Cross-sectional study. Methods: Eighty-seven stroke patients had participated in this study. Based on the self-reporting survey results on the difficulties experienced when walking outdoors, the subjects were divided into the independent community ambulation (ICA) group (n=35) and the dependent community ambulation group (n=52). Based on the area under the curve (AUC), the discrimination validity of the TUG performance time was calculated for classifying CAL. The Binomial Logistic Regression Model was utilized to produce the likelihood ratio of selected TUG cut-off values for the distinguishing of community ambulation ability. Results: The selected TUG cut-off values and the area under the curve were <14.87 seconds (AUC=0.871, 95% confidence interval=0.797-0.945), representing a mid-level accuracy. Concerning the likelihood ratio of the selected TUG cut-off value, it was found that the group with TUG performance times shorter than 14.87 seconds showed a 2.889 times higher probability of ICA than those with a TUG score of 14.87 seconds or longer (p<0.05). Conclusions: The TUG can be viewed as an assessment tool that is capable of classifying CAL.