Cancer Risk After Radioactive Iodine Treatment for Hyperthyroidism : A Systematic Review and Meta-analysis

Sung Ryul Shim,Cari M. Kitahara,Eun Shil Cha,Seong-Jang Kim,Ye Jin Bang,Won Jin Lee 대한방사선방어학회 2021 대한방사선방어학회 학술발표회 논문요약집 Vol.2021 No.11

Risk Factors for Nephrocalcinosis in Very Low Birth Weight Infants

( Sang Eun Han ),( Teahyen Cha ),( Jinsup Kim ),( Ja Hye Kim ),( Chang Ryul Kim ),( Hyun Kyung Park ),( Hyun Ju Lee ) 대한주산의학회 2019 Perinatology Vol.30 No.1

Objective: The objective was to identify risk factors for nephrocalcinosis in very low birth weight (VLBW) infants. Methods: Prospective study has done between 2014 and 2017. The study included 81 VLBW infants in the neonatal intensive care unit (NICU). Renal ultrasonography was performed at four weeks and 3 months. Baseline characteristics, complications and medication during NICU admission were collected. 25-(OH)-vitamin D, calcium, phosphorous, alkaline phosphatase, urine calcium to creatinine ratio were serially measured. Results: The incidence of nephrocalcinosis was 16.9%. On univariate analysis, gestational age, lower birth weight, maternal pregnancy-induced hypertension, neonatal sepsis, and frequency of vancomycin and caffeine citrate treatment were significantly associated with nephrocalcinosis. In addition, preterm infants with nephrocalcinosis had lower cord blood 25-(OH)-vitamin D and serum calcium levels and higher serum alkaline phosphatase levels at 2 weeks of life. Multivariate analysis showed that gestational age (P=0.042), birth weight (P=0.019), sepsis (P=0.046), small for gestational age (P=0.015), and maternal pregnancy-induced hypertension (P=0.024) were significant risk factors for nephrocalcinosis. Conclusion: This study suggests that neonatal sepsis and maternal pregnancy-induced hypertension, in addition to gestational age and birth weight are important perinatal risk factors for nephrocalcinosis.

PTD-FGF2 attenuates porcine pancreatic elastase induced emphysema in mice

Sang-Ryul Cha,Jooyeon Lee,Jaehyun Park,Jimin Jang,Se Bi Lee,Yunbeom Choi,Dahee Han,Se-Ran Yang 한국실험동물학회 2023 한국실험동물학회 학술발표대회 논문집 Vol.2023 No.2

국내 표준 석탄 화력 적용 초임계 CO₂ 발전 시스템의 열/경제성 분석

박성호(Sung Ho Park),임동렬(Dong Ryul Rhim),염충섭(Choong Sub Yeom),신중욱(Jung Uk Shin),차재민(Jae Min Cha),이춘식(Chun Sik Lee) 한국에너지기후변화학회 2016 한국에너지기후변화학회 학술대회 Vol.2016 No.5

500 MW급 국내 석탄 표준 화력 적용 초임계 이산화탄소 발전 사이클의 열/경제성 분석

박성호(Sung Ho Park),임동렬(Dong Ryul Rhim),염충섭(Choongsub Yeom),차재민(Jae Min Cha),신중욱(Jung Uk Shin),이춘식(Chun Sik Lee) 한국에너지기후변화학회 2016 에너지기후변화학회지 Vol.11 No.1

To enhance the thermal efficiency of power plants using fossil fuels, the supercritical carbon dioxide (sCO₂) Brayton cycle has rapidly emerged as one of the alternative power generation technologies. In this study, numerical analyses of the conventional coal fired steam Rankine power plant and two cases of coal fired power plants combined with the sCO₂ Brayton cycles were conducted to evaluate the thermo-economic performances quantitatively. The mass flow rates of the sCO₂ Brayton cycle cases were much higher than for the boiler feed water of the steam Rankine power plant from the results of process simulations. The net efficiencies for coal fired power plants combined with sCO₂ Brayton cycles were about 2.5%P~3.4%P higher. The economic analysis for calculating the levelized cost of electricity by TRR method was also carried out, and the levelized costs of electricity for the cases of the sCO₂ Brayton cycles were about 5.4%P~6.7%P lower than that of the steam Rankine power plant. Additionally the sCO₂ Brayton cycles have the potential benefit of reducing the total capital investment with smaller turbo-machinery sizes. Consequently, the coal fired power plants with sCO₂ Brayton cycles seemed to be more efficient and economical than for the conventional steam Rankine power cycle.

조선 현종대왕의 침구치료기록에 대한 연구

이상원 ( Sang Won Lee ),김동율 ( Dong Ryul Kim ),차웅석 ( Wung Seok Cha ) 경락경혈학회 2011 Korean Journal of Acupuncture Vol.28 No.2

Objectives: This study is on the acupuncture and moxibustion treatment records of King Hyeonjong, classified according to diseases and chronology. Methods: Records on the acupuncture and moxibustion treatment of King Hyeonjong have been extracted from the web database of 『The Daily Records of Royal Secretariat of Chosun Dynasty』. First, all articles containing the keywords ``Yakbang (藥房)`` and ``Euigwan (醫官)`` have been extracted. Then, those during King Hyeonjong`s reign have been rearranged in chronological order. Among these records, those regarding acupuncture and moxibustion have been used in this paper. Results: King Hyeonjong was mostly treated on eye diseases, musculoskeletal system disorders, deficient source qi, and tumor. Acupuncture treatment was preferred for eye diseases, and moxibustion treatment for musculoskeletal disorders. Medicine was used 50 times, acupuncture 4 times, and moxibustion 14 times to treat source qi deficiency, showing that acupuncture and moxibustion treatments were used for clear deficiency syndrome. Only on the case of tumor, the number of acupuncture treatments was bigger than that of medicine treatments. Conclusions: In the early days of his reign, King Hyeonjong suffered from hypochondria, as compared to source qi deficiency and septicemia during later days. He received frequent acupuncture and moxibustion treatments, and he especially preferred those treatments for eye diseases and musculoskeletal disorders.

점포의 물리적 환경이 고객만족을 매개해 점포충성도에 미치는 영향

차성환(Sung-Hwan CHA),배병렬(Byung-Ryul BAE),이지원(Ji-Won LEE) 전북대학교 산업경제연구소 2012 아태경상저널 Vol.4 No.3

본 연구는 에코레이블이 부착된 세제를 대상으로 소비자들의 구매의도와 구매경험 간의 관련성을 파악하고, 소비자를 4가지 유형으로 분류(구매경험과 구매의도 모두 없음, 구매의도는 있으나 경험은 없음, 경험은 있으나 의도는 없음, 의도와 경험 모두 있음)하였다. 분류된 소비자유형간 특성들의 차이검증과 더불어 의도와 경험이 모두 없는 유형과 비교하여 각각 의도만 있는 유형, 경험만 있는 유형 및 의도와 경험 모두 있는 유형의 행동차이에 영향을 주는 요인을 분석하였다. 분석 결과 에코레이블이 부착된 세제의 구매의도와 구매경험은 유의하게 상관성이 있는 것으로 나타났다. 제품 특성들에 있어서는 에코레이블 이해, 선택자신감, 준거집단 영향력, 광고효과, 제품관심, 가격가치지각 및 정부정책(보조금, 세금)에 대한 소비자 선호 등이 소비자유형별로 유의한 차이가 있는 것으로 나타났다. 관련요인의 경우 의도와 경험이 모두 없는 유형과 비교하여 다른 모든 유형들에서 연령은 유의한 것으로 나타났으며, 교육수준은 의도와 경험 모두를 가진 소비자유형에서 유의한 것으로 나타났다. 또한 광고효과는 의도만 있거나 경험과 의도 모두 있는 소비자들의 경우 유의한 것으로 나타났으며, 제품에 대한 관심과 환경표시에 대한 이해는 경험이 있는 소비자만이 유의한 것으로 나타났다. 이 밖에 제품선택에 대한 자신감은 경험이 있는 소비자의 경우 부적으로 유의한 것으로 나타났으나, 경험과 의도 모두 있는 소비자의 경우 정적으로 유의한 것으로 나타나 유형별로 상이한 효과가 있음을 알 수 있다. 본 연구는 환경친화적 소비행동을 파악하기 위하여 기본적으로 고려하는 인구통계 및 사회경제적 변수 외에 환경에 대한 관심이나 지식 등의 영향력을 파악함으로써 소비행동을 보다 환경친화적으로 변화시킬 수 있는 방안을 모색하는데 유용한 정보가 될 것이다. Recently, a large number of the coffee shops and franchise coffee shops are continuously increasing. But coffee shops managers are not concerned about the importance of the physical environment of their coffee shop. It is a matter of differentiation, due to the difference between success and failure of the coffee shops will be determined. We analyzed the physical environment of coffee shop which has a competitive advantage. We include coffee shop’s physical environment as follows: space, cleanliness, aesthetic, entertainment, convenience, and comfortable. We modeled customer satisfaction as a mediator on store loyalty. We call this model as full mediation model. We also modeled physical environment directly affect store loyalty. We call this model as partial mediation model. Research results indicate that space, cleanliness, aesthetic physical environment affect on customer satisfaction, and customer satisfaction positively affects store loyalty. We found that cleanliness and aesthetic affect directly store loyalty. Therefore, space, cleanliness, aesthetic physical environment must be considered importantly by coffee shop managers, and coffee shop managers also must provide high level of customer satisfaction.

수삼의 지역별 연근별 인삼사포닌 함량 비교

이충렬(Chung Ryul Lee),황완균(Wan Kyun Whang),신차균(Cha Gyun Shin),이학성(Hak Sung Lee),한성태(Sung Tai Han),임병욱(Byung Ok Im),고성권(Sung Kwon Ko) 한국식품과학회 2004 한국식품과학회지 Vol.36 No.5

복부 대동맥류 63예의 임상적 고찰

차창렬(Chang Ryul Cha),박장상(Jang Sang Park),문인성(In Sung Moon),고용복(Yong Bok Koh) 대한외과학회 1995 Annals of Surgical Treatment and Research Vol.48 No.2

임상실습에 대한 방사선 전공 학생들의 인식에 관한 연구

이병렬(Byung-Ryul Lee),김현길(Hyun-Gil Kim),윤명관(Myeong-kwan Yoon),이기종(Gi-Jong Lee),차상영(Sang-Young Cha),임청환(Cheong-Hwan Lim) 대한방사선과학회 2014 방사선기술과학 Vol.37 No.3

임상실습은 전공분야에 관한 실제적 경험을 의료기관에서 현장 실습교육을 통해서 배울 수 있는 좋은 기회가 되고 있다. 이에 임상실습이 진행되는 가운데 임상 지도강사와 학생의 임상실습에 관한 인식을 비교 ․ 연구하고자 한다. 수도권에 소재하고 있는 방사선을 전공하는 재학생 중에 2013년 임상실습을 마친 학생을 대상으로 하였다. 본 연구를 위해 고안된 설문지를 사용하여 진행하였으며, 회수된 설문지 275부를 통계프로그램 SPSS (12.0 version)을 사용하여 빈도분석, 교차분석, 카이제곱 검정, McNemar검정을 실시하였다. 방사선 전공을 선택한 동기는 높은 취업률 때문(44.0%)이고, 학과에 대한 만족도는 보통(53.1%)이라고 대답 하였다. 8주의 임상실습 기간에 대해 51.3%가 적절하다고 인식하였으며, 임상실습 시기는 3년 과정의 학생은 2 학년 겨울방학(47.3%), 4년 과정의 학생은 3학년 1학기(27.7%)로 나타났다. 임상실습 동안 학생들은 전문지식의 부족(32.4%)을 느꼈으며, 실습교육의 일부 내용이 학교에서 이루어지는 교육과 차이가 있다(68.4%)고 대답 하였다. 임상실습교육에 대해 대부분 만족하는 것으로 나타났으며 그중에서 임상실습에 대한 중요성의 인식은 3.94±0.89로 나타났다. 실습의 실시 전과 후에 방사선사 취업에 대한 인식의 변화는 84.1%에서 82.9%로 나타났다. 방사선사 취업을 원하는 이유는 직업의 안정성으로 실습 전 49.0%와 실습 후 46.0%, 취업을 원하지 않은 이유는 적성 및 소질에 맞지 않아서가 실습 전 37.0%와 실습 후 40.7%로 대답하였다. 취업을 위한 대학교육이 아닌 유능한 인재를 통한 방사선사의 위상을 높일 수 있는 내실 있고 만족도 높은 대학교육이 이루어 질 수 있는 노력이 필요하고 교육대상자인 학생들에게 효과적인 교육이 이루어 질 수 있는 임상실습시기와 기간에 대한 폭넓은 논의가 지속적으로 필요하다고 사료된다. The clinical practices provide the students with a good opportunity to study the practical experiences in their field through the clinical training education in hospital. Now, in this study, comparing the percep-tions of the clinic teachers with those of students at the clinical site. The study was conducted to the students attending universities located in Seoul and who finished the clinical practices in 2013. The questionnaires were distributed to the student and collected from them. The study were conducted to 275 questionnaires with frequency analysis, crosstabs, chi-square test and McNemar test. The major motivation was of the select radiography course was high employment rate(44.0%) and the satisfaction of radiography course was general(53.1%). 51.3% of the study answered 8 weeks current dura-tion of clinical practices is proper. The 3-year course students answered that the period of clinical practi-ces would be proper if it is performed in the winter vacation in their second year in college(47.3%). The 4-year course students answered that the first semester in their third years is proper for clinical practi-ces(27.7%). The students answered that they felt the lack in their knowledge on the professional field(32.4%) during the clinical practices and some of the practical training is different from the education performed at school(68.4%). Most of answered that they were satisfied with the clinical practices and among them they recognized the importance of the clinical practices (3.94±0.89). After the clinical practi-ces, their desire for getting job as a radiography has changed from 84.1% to 82.9%. The reason why they want the job related to the radiation is because the job is stable (changed from 49.0% to 46.0% after the clinical practice) while the reason why they don’t want be a radigrapher because that job is not proper for them (changed from 37.0% to 40.7% after the clinical practice) The effort should be made to enhance the position of radiation professionals through the improved ed-ucation system to the students, rather giving them education for just employment.