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      • Study on the Emerging VOCs Analysis Method using Purge&Trap GC/MS in Raw Water and Treated Water

        Sowon Kang(강소원),Hyunseung Cho(조현승),Taekkyun Choi(최택균),Sunku Park(선구),Hakseok Kim(김학석),Sangrak Lee(이상락),Juhyun Park(주현) 환경독성보건학회 2021 한국독성학회 심포지움 및 학술발표회 Vol.2021 No.5

        Volatile Organic Compounds (VOCs) are unsaturated hydrocarbons that cause odors and ozone through volatilization into the atmosphere. In this study, the analysis method of VOCs was performed using Purge & Trap gas chromatography/mass spectrometry. Analysis method was discussed and optimized. The results of 14 VOCs have shown that Method Detection Limit (MDL) was in the range from 0.0098 μg/L to 0.6519 μg/L and Limit of Quantification (LOQ) was in the range from 0.0313 μg/L to 2.0762 μg/L. The results of accuracy and precision ranged from 85.9 % to 114.8 % and 1.0 % to 3.3 %. Investigation of the matrix effects on tap water has shown that this method is suitable for VOCs analysis. Raw water and treated water of 15 water treatment plants were studied by developed method. As a results, Chloromethane was detected in the range from N/D to 1.924 μg/L of raw water and in the range from N/D to 4.595 μg/L of treated water. Detection frequency was 50.0 % of raw water and 86.6 % of treated water. In the case of Chloromethane in raw water, the frequency of detection was decreased during the period of wet season. In addition, in the case of water treatment plant that does not use a coagulant or uses river-side filtered water, the formation of chloromethane was less in treated water. These results are intended to be used as scientific basis data for the preparation of the water quality environment policy system in the future.

      • KCI등재

        뇌질환 환자에서 전산화 인지치료의 임상적 유용성 : 체계적 고찰 및 메타분석

        송승일,박소원,Song, Seungil,Park, Sowon 대한통합의학회 2020 대한통합의학회지 Vol.8 No.4

        Purpose : This study aims to confirm the clinical usefulness of computerized cognitive therapy program for patients with brain diseases in Korea and to present basic data that can confirm the effectiveness of computerized cognitive therapy program to experts related to rehabilitation in the future. Methods : A systematic review and meta-analysis research method was used to confirm the clinical effectiveness of computerized cognitive therapy applied to patients with brain diseases in Korea. Based on the national institute of health and medical colleges association (NECA) systematic literature manual and preferred reporting items for systematic reviews and meta-analysis (PRISMA) guidelines for conducting research through systematic review and meta-analysis methods. Systematic review was PICOST-SD was used to research and select papers. For meta-analysis, the data was input and analyzed separately by literature result using the revman manager 5.3 program and the results were presented visually through tables and forest, funnel plot figure. Results : As a result of comprehensive analysis of the contents of the finally selected literature, it as found that studies on stroke and dementia were mainly conducted. In addition, through the evaluation of the quality of the literature, most of the existing computerized cognitive therapy studies were identified as high-quality studies, but the results were insufficient for randomization and blinding. And through meta-analysis, the clinical effectiveness of computerized cognitive therapy on cognitive function, activities of daily living, and visual perception function of patients with brain disease was found. Conclusion : The research literature that applied computerized cognitive therapy to brain disease subjects was comprehensively analyzed and identified. It is thought that this could be used as basic data on the characteristics of cognitive therapy that should be applied to patients with brain diseases in the future and the usefulness of computerized cognitive therapy program in actual clinical practice.

      • KCI등재

        뇌질환 환자에서 전산화 인지치료의 임상적 유용성 : 체계적 고찰 및 메타분석

        송승일 ( Song Seungil ),박소원 ( Park Sowon ) 대한통합의학회 2020 대한통합의학회지 Vol.8 No.4

        Purpose : This study aims to confirm the clinical usefulness of computerized cognitive therapy program for patients with brain diseases in Korea and to present basic data that can confirm the effectiveness of computerized cognitive therapy program to experts related to rehabilitation in the future. Methods : A systematic review and meta-analysis research method was used to confirm the clinical effectiveness of computerized cognitive therapy applied to patients with brain diseases in Korea. Based on the national institute of health and medical colleges association (NECA) systematic literature manual and preferred reporting items for systematic reviews and meta-analysis (PRISMA) guidelines for conducting research through systematic review and meta-analysis methods. Systematic review was PICOST-SD was used to research and select papers. For meta-analysis, the data was input and analyzed separately by literature result using the revman manager 5.3 program and the results were presented visually through tables and forest, funnel plot figure. Results : As a result of comprehensive analysis of the contents of the finally selected literature, it as found that studies on stroke and dementia were mainly conducted. In addition, through the evaluation of the quality of the literature, most of the existing computerized cognitive therapy studies were identified as high-quality studies, but the results were insufficient for randomization and blinding. And through meta-analysis, the clinical effectiveness of computerized cognitive therapy on cognitive function, activities of daily living, and visual perception function of patients with brain disease was found. Conclusion : The research literature that applied computerized cognitive therapy to brain disease subjects was comprehensively analyzed and identified. It is thought that this could be used as basic data on the characteristics of cognitive therapy that should be applied to patients with brain diseases in the future and the usefulness of computerized cognitive therapy program in actual clinical practice.

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