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Experimental Study on Poultices Applying to Remove Fixative (Paraloid B72) on Earthen Mural Painting
Kyeong Min Lee,Hye Young Moon,Yeong Gyeong Yu,Soon Kwan Kim 한국문화재보존과학회 2018 보존과학회지 Vol.34 No.6
The possibility of applying poulticing was studied for removing Paraloid B72, a resin used for fixing an earthen mural painting. Five types of poultices were selected from clay and gel types, and acetone, ethanol, and methyl ethyl ketone(MEK) were used as mixed solvents. The possibility of mixing between the poultice and solvent was investigated, and then the spreadability, fluidity, acidity, drying properties, and solubility of the poultices were examined to confirm the characteristics. A poultice agent, which is suitable for applying to a mural painting, was selected and applied to a painting layer sample coated with Paraloid B72. As a result, all painting layers were good condition at under 50% of the solvent. The removal efficiency of Paraloid B72 was more effective when most of the solvents were used at 50%, rather than at 25%. However, it is difficult to mix 50% of MEK and ethanol with the gel-type poultices. When used at 25%, the removal performance was poorer than that at 50%, but the mixing with all the poultices was successful. In addition, the adsorption and removal power of the gel-type poultice were better than those of the clay-type, but the latter was expected to be more suitable in short-time cases due to its high drying speed. The results of this study show that the dissolution performance varies depending on the poultices and solvents. Hence, the poultice and solvent should be selectively applied, considering the fixative of the mural to be removed.
( Hye Mi Jin ),( Kyeong A So ),( Sung Eun Kim ),( Jae Kwan Lee ),( Jin Hwa Hong ) 대한산부인과학회 2012 대한산부인과학회 학술대회 Vol.99 No.-
The aim of this study was to evaluate whether the corrected whole body standard uptake ratio (CUR) in metastatic focus has a linear relationship with a serum squamous cell carcinoma (SCC) antigen level in patients with recurrent cervical cancer. Fifty-four patients (mean age, 52.1 ± 12) who had underwent radical hysterectomy for cervical cancer January 2007 to February 2011 were enrolled. A one hour and two hour whole body 18F-FDG-PET/CT (brain to foot) (Gemini TF PET/CT, Philips Medical Systems) was performed after injection of 370-555 MBq of 18F-FDG. The serum SCC level was also measured. The time interval between the performance of PET/CT and sampling for serum SCC level was ± 5.6 days. The maximum standard uptake value (SUVmax) was obtained from the regular region of interest in metastatic focus showing the highest intensity. The histopathological examination was performed for recurrence assessment. Of 54 patients, recurrence was histologically confirmed in 30 patients, and the remaining 24 were free of recurrence. When the CUR cut-off value in metastatic focus was set at 57.9 by receiver operating curve analysis, the sensitivity and specificity for the diagnosis of recurrence were 87.1% and 76.5%, respectively. The median serum SCC antigen level between recurrence group and non-recurrence group were significantly different (10.45 ug/L versus 2.98 ug/L; p<0.0001). The CUR measured in metastatic focus demonstrated a positive correlation with serum SCC antigen level (correlation coefficient, r=0.8137, p<0.0001). The CUR of metastatic focuses in patients with suspicious recurrent cervical cancer calculated from the dual-phase 18F-FDG-PET/CT might be used as an indirect diagnostic tool for disease recurrence.
Experimental Study on Poultices Applying to Remove Fixative (Paraloid B72) on Earthen Mural Painting
Lee, Kyeong Min,Moon, Hye Young,Yu, Yeong Gyeong,Kim, Soon Kwan The Korean Society Of Conservation Science For Cul 2018 보존과학회지 Vol.34 No.6
The possibility of applying poulticing was studied for removing Paraloid B72, a resin used for fixing an earthen mural painting. Five types of poultices were selected from clay and gel types, and acetone, ethanol, and methyl ethyl ketone(MEK) were used as mixed solvents. The possibility of mixing between the poultice and solvent was investigated, and then the spreadability, fluidity, acidity, drying properties, and solubility of the poultices were examined to confirm the characteristics. A poultice agent, which is suitable for applying to a mural painting, was selected and applied to a painting layer sample coated with Paraloid B72. As a result, all painting layers were good condition at under 50% of the solvent. The removal efficiency of Paraloid B72 was more effective when most of the solvents were used at 50%, rather than at 25%. However, it is difficult to mix 50% of MEK and ethanol with the gel-type poultices. When used at 25%, the removal performance was poorer than that at 50%, but the mixing with all the poultices was successful. In addition, the adsorption and removal power of the gel-type poultice were better than those of the clay-type, but the latter was expected to be more suitable in short-time cases due to its high drying speed. The results of this study show that the dissolution performance varies depending on the poultices and solvents. Hence, the poultice and solvent should be selectively applied, considering the fixative of the mural to be removed.
편평상피세포암종과 선암종이 동반된 복합형 소세포암종 (Combined Small Cell Carcinoma)
박혜정 ( Hye Jung Park ),문영철 ( Yeung Chul Mun ),유성근 ( Sung Keun Yu ),신경철 ( Kyeong Cheol Shin ),정진홍 ( Jin Hong Chung ),이관호 ( Kwan Ho Lee ),김미진 ( Mi Jin Kim ),이정철 ( Jung Cheul Lee ) 대한결핵 및 호흡기학회 2000 Tuberculosis and Respiratory Diseases Vol.48 No.1
후종격동에 발생한 비기능성 부신경절종(Paraganglioma) 1례
이관호,박혜정,신경철,이충기,정진홍,유성근,김미진,이정철,문영철 영남대학교 의과대학 2000 Yeungnam University Journal of Medicine Vol.17 No.2
저자들은 객혈을 주증상으로 내원한 34세 남자에게서 전산화단층촬영과 진단적 흉강경검사를 통해 후종격동내 병소를 확인한 후, 종괴절제술을 시행함으로써 조직학적 및 임상적으로 비기능성 부신경절종으로 진단한 1례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Paraganglioma is a tumor arising from the extraadrenal paraganglion system and is rarely observed in the mediastinum. The authors experienced a case of nonfunctioning paraganglioma of the posterior mediastinum. The patient was a 34-years-old male in whom abnormal mass lesion was noted in chest radiograph with hemoptysis. His blood pressure and serologic examination was within normal range upon admission to our hospital. Chest CT revealed a tumor in the left lower lobe. Diagnostic thoracoscopy was performed and diagnosed a posterior mediastinal mass. Surgical resection was then performed. Posterior mediastinal mass was removed successfully and histological examination of the surgical specimen diagnosed paraganglioma. He received radiotherapy after surgery and was followed up. Related literature are reviewed.
박혜옥 ( Hye Ok Park ),박철형 ( Cheal Hyung Park ),이경호 ( Kyeong Ho Lee ),유재관 ( Jai Kwan Ryou ),김유정 ( Youjung Kim ),김재형 ( Jae Hyung Kim ),장재용 ( Jae Yong Jang ),권기운 ( Gi Woon Kwon ),박정현 ( Jung Hyun Park ) 한국폐기물자원순환학회(구 한국폐기물학회) 2019 한국폐기물자원순환학회 추계학술발표논문집 Vol.2019 No.-
우리나라 슬러지 처리의 가장 큰 비중을 차지하던 해양투기 방법이 폐기물 해양배출을 금지하는 런던 협약으로 인해 2012년부터 해양투기가 전면 금지됨에 따라 안정적이고 지속적인 처리 방법 및 재활용 기술에 대한 많은 연구가 수행되고 있다. 재활용 기술 중 슬러지 소각 방법이 가장 많이 선호되고 있으나, 건설비 및 투자비가 과다하여 비경재적이고 다이옥신 배출 등 2차 환경오염에 대한 민원 발생 등의 문제점이 발생하여 실제 적용에 많은 어려움을 겪고 있는 상황이다. 또한 퇴비화 기술에 대한 많은 연구가 수행되었으나, 퇴비화 과정에서 발생되는 악취로 인한 민원이 잦아지고 결국 시설이 폐쇄되는 등 지속적인 적용에 대한 어려움이 많이 발생되고 있다. 이러한 국내 조건 및 현실적인 문제점을 고려할 때 슬러지의 효율적인 처리 및 활용 방안으로 매립지 복토재로서의 슬러지 재활용의 가능성이 증대되고 있는 실정이다. 현재 수도권매립지 침출수 처리시설에서는 일평균 100톤의 탈수 슬러지가 발생되고 있으며, 침출수 처리장 탈수 슬러지의 함수율은 약 82% 정도이다. 수도권매립지 침출수 처리시설에서 발생되는 탈수 슬러지는 현재 전량 매립처리하고 있으나 2018년도부터 자원순환기본법에 의한 폐기물처분부담금제 도입으로 매립최소화 및 재활용 극대화 방안 모색이 필요하다. 따라서 본 연구에서는 매립되고 있는 침출수 처리시설 탈수 슬러지를 대상으로 물질 특성을 분석하고 적절한 처리 및 활용 방안을 검토하기 위해 복토재로서의 적용 가능성에 대한 실험을 수행하였다.
노인성 우울증 환자와 정상 노인에서 인지기능의 비교 및 우울증 증상 변화와의 관련성 평가
김혜원(Hye won Kim),최관우(Kwan Woo Choi),나은진(Eun Jin Na),이한경(Han Kyeong Lee),전홍진(Hong Jin Jeon) 대한노인정신의학회 2018 노인정신의학 Vol.22 No.2
Objective:This study aimed to investigate the neurocognitive functions of patients with late-life depression compared to healthy controls and their association with improvement of depressive symptoms. Methods:We compared the results of neurocognitive tests between 41 patients with late-life depression and 20 healthy controls at baseline and 3 months later prospectively. And then we investigated the association of change of cognitive function and improvement of depressive symptoms in patients with late-life depression. Results:Patients with late-life depression showed significantly impaired results in neurocognitive tests especially in domains of language, memory and frontal executive function compared to healthy control. However, after 3 months of treatment of depression, there was no association between the change of results of neurocognitive tests and the changes of scores of Hamilton Depression Rating Scale (HAM-D). Conclusion:Impairment of cognitive functions in late-life depression includes the domains of language, memory and executive function and after 3 months of treatment of depression, there was no association of improvement of depressive symptom and cognitive change in patients with late-life depression.