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외국인 치과 의료서비스와 관련된 치과위생사의 직무만족에 영향을 미치는 요인
박명화 ( Myeonghwa Park ),이상임 ( Sang-im Lee ),이재영 ( Jae-young Lee ),장종화 ( Jong-hwa Jang ) 대한예방치과·구강보건학회 2021 大韓口腔保健學會誌 Vol.45 No.3
Objectives: This study aimed to determine the relationship between English communication ability and job satisfaction of dental hygienists involved in the process of providing dental health services to foreigners and to analyze factors related to job satisfaction. Methods: Both online and offline surveys were conducted in parallel to measure English communication competency and job satisfaction. Participants were 195 clinical dental hygienists provided dental health services to foreigners. Spearman’s rho analysis was performed on the correlation between English communication ability, and job satisfaction, and a stepwise multiple regression analysis was performed on the factors related to the job satisfaction of the dental hygienist. Results: The job satisfaction of dental hygienists was 2.99 point out of 5 points. There was a strong positive relationship between English communication ability and english communication frequency (r=0.682), and the higher the English communication ability, the higher the job satisfaction (r=0.357). Factors affecting job satisfaction were English communication ability (β=0.378, P<0.001) and foreign medical assistance (β=0.391, P<0.001). The adjusted explanatory power of this model was 34.9%. Conclusions: The job satisfaction of dental hygienists who provided dental health services to foreigners was low. English communication ability and experience in foreign medical assistance were significant influencing factors of job satisfaction. These results suggest that education for improving the English communication skills of dental hygienists should be strengthened.
이산화탄소로부터 생물전기화학적 아세트산 생산을 위한 미생물 농화배양 및 군집 분석
김준형(Junhyung Kim),김영은(Young-Eun Kim),박명화(Myeonghwa Park),송영은(Young Eun Song),설은희(Eunhee Seol),김중래(Jung Rae Kim),오유관(You-Kwan Oh) 한국신재생에너지학회 2020 신재생에너지 Vol.16 No.1
Microbial electrosynthesis has recently been considered a potentially sustainable biotechnology for converting carbon dioxide (CO₂) into valuable biochemicals. In this study, bioelectrochemical acetate production from CO₂ was studied in an H-type two-chambered reactor system with an anaerobic microbial consortium. Metal-rich mud flat was used as the inoculum and incubated electrochemically for 90 days under a cathode potential of -1.1 V (vs. Ag/AgCl). Four consecutive batch cultivations resulted in a high acetate concentration and productivity of 93 m㏖/L and 7.35 m㏖/L/day, respectively. The maximal coulombic efficiency (rate of recovered acetate from supplied electrons) was estimated to be 64%. Cyclic voltammetry showed a characteristic reduction peak at -0.2~-0.4 V, implying reductive acetate generation on the cathode electrode. Furthermore, several electroactive acetate-producing microorganisms were identified based on denaturing- gradient-gel-electrophoresis (DGGE) and 16S rRNA sequence analyses. These results suggest that the mud flat can be used effectively as a microbial source for bioelectrochemical CO₂ conversion.