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LEAP 모델 적용을 통한 대학단위 온실가스 감축안 도출
박효정(Hyo Jeong Park),정혜진(Hye Jin Jung),이승묵(Seung Muk Yi),박재우(Jae Woo Park) 大韓環境工學會 2012 대한환경공학회지 Vol.34 No.4
본 연구에서는 대학 캠퍼스 단위에서의 온실가스 인벤토리 구축을 위해 한양대학교 안산캠퍼스를 대상으로 직접 배출원(도시가스, 실내등유, 이동연소), 간접 배출원(전력), 기타 배출원(항공, 수도) 세 부분으로 온실가스 배출원을 규명하였으며, 2007년부터 2009년까지 온실가스 배출원별 에너지 사용량에 따른 온실가스 배출량을 산정하였다. 그 결과, 전체 온실가스 배출영역 중 가장 많은 부분을 차지하는 것은 간접배출의 전력부문으로 전체 온실가스 배출량의 56.7% 차지하는 것을 확인하였다. 또한, 대학본부에서 수행 가능한 온실가스 감축시나리오 및 학교구성원이 수행 가능한 온실가스 감축 실천시나리오를 대학환경에 적합하게 설계한 후 LEAP 모델을 이용하여 2007년부터 2020년까지의 온실가스 감축잠재량을 평가하였다. 그 결과, 감축시나리오 적용시 2020년 BAU(배출전망치) 대비 2020년에는 직접배출 중 고정연소에서 63.34 ton CO₂eq/yr, 이동연소에서 221.1 ton CO₂eq/yr 감축되었으며, 간접배출 중 조명에서는 4,637.34 ton CO₂eq/yr 온실가스가 감축되는 것으로 산출되었다. 또한, 실천시나리오를 통한 온실가스 감축잠재량은 1293.76 ton CO₂eq/yr으로 산출되었다. 따라서, 한양대학교 안산 캠퍼스에 감축·실천 시나리오를 모두 적용한다면 2020년에는 2020년 BAU 대비 온실가스를 총 24% 감축할 수 있을 것으로 추정된다. The sources of greenhouse gases (GHG) at Hanyang University Ansan campus, including direct sources, indirect sources, and others, were investigated in order to establish the GHG inventory. Emission of GHG was calculated with the energy use from each source from 2007 and 2009. The indirect emission (56.7%) due to the electricity significantly contributed to total GHG emission. The scenario for the GHG reduction was designed for both campus administration and members. The reduction potential of GHG was simulated from 2007 to 2020 using Long-range Energy Alternatives Planning (LEAP) model. In case of GHG reduction scenario by campus administration, the GHG can be reduced by 63.34 ton CO₂eq/yr for stationary combustion in the direct source, by 221.1 ton CO₂eq/yr for mobile combustion in the direct source, and by 4,637.34 ton CO₂eq/yr for lighting in the indirect source, compared to 2020 Business As Usual (BAU). In case of GHG reduction action scenario by campus members, the reduction potential of GHG was 1293.76 ton CO₂eq/yr. Overall, the total GHG emissions in 2020 by the both scenarios can be decreased by 24% compared to 2020 BAU.
중환자실 재원 환자에서의 L-alanyl-L-glutamine (디펩티벤주) 투여 후 임상 효과 평가
박효정 ( Hyo Jung Park ),박수진 ( Su Jin Park ),이영미 ( Young Mee Lee ),박치민 ( Chi Min Park ),서정민 ( Jeong Meen Seo ) 한국정맥경장영양학회 2013 한국정맥경장영양학회지 Vol.5 No.2
Purpose: Intravenous glutamine may decrease complications arising out of infections, hospital length of stay, and mortality in critically ill patients who require parenteral nutrition (PN). The aim of this study was to evaluate the effects of administration of L-alanyl-L-glutamine on the clinical outcome and serum glutamine concentrations in these patients. Methods: In a population of critically ill patients who need PN at least for 5 days due to difficulty with oral/tube feeding, selected patients after inclusion were randomized into two groups: a study group (n=3) supplied with L-alanyl- L-glutamine administration and a control group (n=6) without it. Patients were supplied with 1.5 g/kg/day of amino acids and 20∼25 kcal/kg/day of energy. The study group received target amount of amino acids (1.5 g/kg/day) including 0.5 g/kg/day of L-alanyl-L-glutamine. The serum glutamine level and clinical outcomes were measured just before and after 4 and 8 days of PN administration. Results: We could not find out any significant differences of hospital stay, death at hospital, PN-induced complications, and serum glutamine concentrations between the two groups. In the study group, the number of deaths and intensive care unit (ICU) length of stay were much higher than the control group. Conclusion: Due to the lack of randomization in this study, the benefits from parenteral glutamine supplement have not been proved. However, it is the first study to measure serum glutamine concentrations of ICU patients in Korea. Further trials are needed to determine the exact effects of parenteral glutamine administration. (JKSPEN 2013;5(2):62-66)
국내 입원한 성인 암환자의 정맥영양 사용에 대한 후향적 연구
박효정 ( Hyo Jung Park ),손유민 ( You Min Sohn ),정지은 ( Jee Eun Chung ),김정태 ( Jung Tae Kim ),양진아 ( Jin A Yang ),배혜정 ( Hye Jung Bae ),성예원 ( Ye Won Sung ),김선화 ( Sun Hwa Kim ),조지윤 ( Ji Yoon Cho ),정경미 ( Kyung Mi 한국정맥경장영양학회 2020 한국정맥경장영양학회지 Vol.12 No.2
Purpose: There have been no clinical studies on the characteristics of parenteral nutrition (PN) for adult cancer inpatients in South Korea. The published evidence describing modern PN practices in these patients is also extremely limited. Therefore in this retrospective multicenter cross-sectional study, we aimed to investigate the PN support practice in hospitalized adult cancer patients. Methods: The study included adult cancer patients hospitalized in nine hospitals in South Korea and received PN, during the period from August 1st, 2017 to October 30th, 2017. We evaluated the relevant hospital-based PN practices in this group. Results: Among the 11,580 inpatient admissions during this period, 759 cancer patients received PN (6.6%). The majority of enrolled patients (97.2%) used commercially available PN and 71.2% of these used peripheral PN formulations. The average in-hospital PN duration was 16.1±19.9 days. Patients received only 65.4±25.4% calories of the recommended target calories. The in-hospital mortality of enrolled patients was 26.1%. Conclusion: We conclude that commercial PN is the most common form of PN administered to hospitalized adult cancer patients and the overall in-hospital mortality in the patients using PN is higher in South Korea compared to other countries.
연하장애가 있는 신경계 이상 환아에서 경피 내시경하 위루술 후 흡인성 폐렴의 빈도 감소
박효정(Hyo Jung Park),강지현(Ji Hyun Kang),김정미(Jung-mi Kim),추미애(Mi Ae Chu),최병호(Byung-Ho Choe),서혜은(Hye Eun Seo),권순학(Soonhak Kwon) 대한소아신경학회 2011 대한소아신경학회지 Vol.19 No.2
목적 : 스스로 먹을 수 없는 사람의 경우 타인에 의해 음식물을 공급하는 방법은 비위관을 통하거나 위루관을 통한 방법이 있다. 이중 내시경을 통한 위루술 후에 호흡기 감염의 감소 등의 유익을 확인하고자 연하장애가 있는 신경계 환아들을 대상으로 본 연구를 시행하였다. 방법 : 경북대학교병원 소아청소년과에서 1999년 1월부터 2008년 12월까지 연하장애가 있는 신경계 이상환자 중 경피 내시경하 위루술을 시행 받고 시술 후 12개월 이상 경과 관찰된 26명을 대상으로 환자들의 특성을 조사하고 기저 질환별로 분류하였으며 시술 전후에 체중과 흡인성 폐렴으로 입원하게 되는 횟수를 비교하였다. 시술 전과 시술 후 6개월 및 시술 후 6-12개월을 기간으로 정하여 비교하였다. 결과 : 총 26명(남자 14)의 시술 당시 평균 나이는 6.4±4.7 (0.9-16.9)세였다. 절반 이상인 16명의 체중이 또래에서 3 백분위수 미만이었다. 기저질환으로는 뇌성마비가 16명, 후천적 뇌손상이 4명, 척수성 근위축증이 3명, 신경계 퇴행성 질환과 선천성 근위축증이 각각 2명과 1명 이었다. 시술 전과 시술 후 6개월 및 6-12개월에 체중에는 유의한 증가가 없었다. 시술 전의 흡인성 폐렴의 빈도는 전체환자에서 6개월 간 평균 2.2회 였고 시술 후 6개월 이내에는 평균 0.35회, 6에서 12개월 이내에는 평균 0.27회로 유의한 감소가 있었다(P =0.000). 결론 : 경피 내시경하 위루술은 연하곤란을 보이는 신경질환 환아에서 흡인성 폐렴의 빈도를 감소시킬 수 있는 유용한 시술로 생각한다. Purpose : Nasogastric tube or percutaneous endoscopic gastrostomy (PEG) tube can provide a means of feeding when oral intake is not adequate. This study aimed to evaluate the benefits of PEG such as reduced respiratory complications in neurodisabled children with dysphagia. Methods : Twenty-six neurodisabled patients with dysphagia were followed-up after PEG for at least 12 months from 1999 to 2008. Medical records including characteristics, body weight, frequency of aspiration pneumonia, and grade of gastroesophageal reflux (GER) were reviewed retrospectively between the time before and after PEG. The data collected before PEG was compared with those at 0-6 months and 6-12 months after PEG. Results : The 26 (male 14) enrolled patients had a mean age on PEG of 6.4±4.7 (0.9-16.9) years. The body weight percentile of 16 out of 26 patients was under the 3rd percentile. Underlying diseases were cerebral palsy (n=16), acquired braininjury (n=4), spinal muscular atrophy (n=3), neurodegenerative disease (n=2), and congenital muscular dystrophy (n=1). Body weight was not significantly different before and after PEG. The frequency of aspiration pneumonia was 2.2 times per 6 months before PEG, compared to 0.35 times (0-6 months) and 0.27 times (6-12 months) after PEG, which showed a significant difference (P =0.000). Conclusion : The frequency of aspiration pneumonia decreased significantly by PEG in neurodisabled children with dysphagia.
박효정 ( Hyo Jung Park ) 한국정맥경장영양학회 2016 한국정맥경장영양학회지 Vol.8 No.3
Intestinal failure (IF) is a condition, in which the intestinal function or length remaining is below the minimum amount required for the absorption of sufficient nutrients and fluid to maintain normal life. The nutritional supply of IF depends on the anatomical site, length, and function of the remaining bowel. The goals of nutritional therapy for patients with IF are to achieve bowel adaptation to absorb nutrients sufficiently to live a healthy life with the current intestinal condition, and to promote the enteral autonomy to control nutrient digestion, absorption, excretion, and bowel movement. To stabilize and recover the patient`s nutrition condition after a huge bowel resection, the intestinal rehabilitation team (IRT) for individual nutritional therapy should be established. IRT carefully monitors the changes in body weight, medication use, patient`s symptoms, nutrient deficiency, hydration status, function of the remaining bowel, degree of bowel adaptation, adverse effects due to nutritional therapy, and enteral balance. To achieve intestinal adaptation and enteral autonomy through complicated and difficult nutritional intensive therapy in IF patients, it is essential to manage the patients through multidisciplinary collaboration involving physicians, pharmacists, dietitians, and nurses.
장부전 환자의 장재활 시스템 구축을 위한 질 향상 활동
박효정 ( Hyo Jung Park ),이상훈 ( Sang Hoon Lee ),윤지혜 ( Ji Hye Yoon ),김현정 ( Hyun Jung Kim ),홍슬희 ( Seul Hee Hong ),김은주 ( Eun Ju Kim ),민자경 ( Ja Kyung Min ),김현정 ( Hyun Jung Kim ),정보경 ( Bo Kyung Jung ),오채연 ( Ch 한국정맥경장영양학회 2014 한국정맥경장영양학회지 Vol.6 No.3
Purpose: Intestinal failure (IF) is a complex clinical condition requiring a multi-disciplinary team approach. Our objective was to set up the treatment protocols and education documents for IF patients for development of intestinal rehabilitation programs in our hospital. Methods: We compared the number of inpatients, length of hospital stay, mode of nutrition and calorie supply at discharge, and the frequency of blood transfusions before and after quality improvement of multidisciplinary activities, in order to evaluate the indirect effects of new protocols and training materials and for development of the intestinal rehabilitation system. Results: We integrated eleven protocols for treatment and monitoring and seven educational materials for patients and caregivers. We compared indirect effects before and after the quality improvement activities. The number of IF patients hospitalized was reduced from 12 to 9. The mean days of hospital stay was decreased from 322 days to 73 days, the average number of monthly blood transfusions was also reduced from 1.8 to 0.3. In addition, the percentage of patients administered enteral nutrition and calories supplied was increased at discharge. Conclusion: By integrating IF protocols and education materials for IF patients, we found possible indirect effects of intestinal rehabilitation using a multidisciplinary team approach.
Implementation and Perception of Online Peer Feedback by Korean EFL Students
박효정 ( Hyo Jung Park ),최호성 ( Ho Hsung Choe ) 21세기영어영문학회 2011 영어영문학21 Vol.24 No.3
This study examines the areas and types of feedback Korean EFL students would focus on in online peer feedback sessions and their implementation and perception of online peer feedback. Fifteen students in a two-month-long TOEFL beginner class participated in the study. They were asked to make comments on their peers` writings on the online blog after class. Most of their comments were found in the local area. In the local area the greatest frequency was observed in alternation while suggestion was the most frequently occurred in the global area. Similarly, more revisions were made in the local area than in the global area. Most of the comments which pointed out grammatical or lexical errors were implemented in their final drafts. Their perceptions of online peer feedback were investigated through interviews. In general, they found online peer feedback beneficial for the improvement of their writing abilities, but simultaneously they hesitated to give and receive peer feedback because of the possibility of incorrectness.