가스상 대기오염물질에 의한 종이 기록물의 가속열화 특성 연구

정소윤(So-Yoon Jeong),전수연(Soo-Yeon Jeon),백소라(So-Ra Baek),정현석(Hyun-Seok Jeong),이진희(Jin-Hee Lee),김형진(Hyoung-Jin Kim) 한국펄프·종이공학회 2015 펄프.종이기술 Vol.47 No.4

Paper records were generally degraded by some factors from atmospheric environments, like temperature, relative humidity or air pollutants. In this study, the degradation behavior of paper records by single or mixed gases of NO₂, SO₂, HCHO and TVOC was evaluated. The mechanical, optical and chemical properties of 4 kinds of paper (acid and neutral-based printing paper, traditional Hanji, and filter paper) were directly and indirectly affected by gaseous harmful materials. The brightness and L<SUP>*</SUP> value in all papers were slightly increased by accelerated aging under gaseous HCHO and TVOCs, but highly decreased by conditions under gases NO₂ and SO₂. The optical properties of paper records were most vulnerable in acid-based paper and high stable in filter paper and traditional Hanji by air pollutant degradation. The aging treatments under mixed gas pollutants including NO₂ resulted in decrease of physical, mechanical and optical properties of paper, so it was supposed that the concentration of NO₂ gas would be strictly controlled for optimum indoor air quality management in domestic storage centers for paper records.

제 1대구치와 제2유구치의 교합면 양상에 관한 연구

전소희,백병주,김재곤,양연미 大韓小兒齒科學會 2005 大韓小兒齒科學會誌 Vol.32 No.1

형태학적으로 아주 유사한 상, 하악 제2유구치와 제1대구치의 교합면 형태를 분석하고자 정상교합의 유치열기 아동(Hellman dental age ⅡA) 100명(남자 50명, 여자 50명)과 영구치열기의 성인(Hellman dental age ⅣA) 86명(남자 43명, 여자 43명)을 대상으로 하였다. 상, 하악 제2유구치와 제1대구치의 상, 하악 석고모형의 3차원 형상 data로부터 각 교두정간 거리, 교두정을 최소한의 오차로 지나는 평면과 교합면사이의 체적, 평면에서 교두정간 까지의 방향별 Section curve를 구하여 다음과 같은 결론을 얻었다. 1. 형성된 표준평면과 각 교두정과의 거리에 관한 오차는 하악 제2유구치에서 남자 0.05-0.09mm, 여자 0.04-0.09mm로서 제일 작았다. 2. 각 교두정간의 거리는 하악 제2유구치와 제1대구치에서 남자가 크게 나타났다. 특히 제2 유구치에서는 유의성이 존재하였다(p<0.05). 3. 남녀 모두에서 사주 교두거리를 제외하고, 상악 제2유구치는 원심 협측교두와 설측교두 사이가, 하악 제2유구치는 원심교두와 원심 설측교두 사이가, 상악 제1대구치는 근심 설측교두와 협측교두 사이가, 하악 제1대구치는 원심 설측교두와 근심 설측교두 사이의 거리가 가장 크게 측정되었다. 4. 제2유구치와 제1대구치에 교합면 체적은 하악에서 크게 나타났고, 영구치가 1.40-1.75배 값을 보였으며(p<0.05), 남녀간에서는 남자가 큰 값을 보이긴 하였지만 통계적인 유의성이 없었다. 5. 대부분의 경우 유치열에서 보다 영구치열에서 section curve가 넓고 깊었으며 교두사이의 사선거리를 제외하고 상악의 경우 근심 협측과 설측교두 사이에서 유치열과 영구치열 모두에서 가장 깊은 section curve를 이루었으며 하악에서는 영구치열은 원심 협측과 원심교두사이 유치열은 원심 설측과 원심교두 사이에서 가장 깊은 section curve를 이루었다. The purpose of this study was to analyze the morphometrics of primary second molar and permanent first molar. Samples were consisted of normal occlusion in the primary dentition(50 males and 50 females) and permanent dentition(43 males and 43 females). Their upper and lower plaster casts were used and their measuring points wore decided, through 3-dimensional laser scanning(3D Scanner, DS4060, LDI, U.S.A.), fitting standard horizontal plane were made for measuring the intercuspal distance, volume of intercuspal area and section curve. The results were as follows; 1. Average distance from the fit plane to the cusp tips of mandibular primary second molar was smaller than any other tooth. (0.05-0.09 mm in male and 0.04-0.09 mm in female). 2. Intercuspal distances of mandibular primary second molar and permanent first molar were larger in male than in female. Especially, there was statistical significance in primary second molar(p<0.05). 3. Intercuspal distance between distobuccal and distolingual cusp was larger in maxillary primary second molar, except cross intercuspal distances. And distances between distal and distolingual cusp, in mandibular primary second molar, between mesiolingual and mesiobuccal cusp, in maxillary first molar, and between distolingual and mesiolingual cusp, in mandibular first molar were larger than any other intercuspal distance 4. Volume of intercuspal area of primary second molar and permanent first molar was larger in mandible than in maxilla and that of' permanent first molar was 1.40-1.75 times of primary second molar (p<0.05). Also it was larger in male than in female, but there was no statistical significance. 5. In most cases, section curves were wider and deeper in permanent dentition than in primary dentition. Except cross intercuspal distances, in maxilla, section curve between mesiobuccal and mesiolingual cusp was the deepest in both dentition. In mandible, section curve between distobuccal and distal cusp was the deepest in permanent dentition and between distolingual and distal cusp was the deepest in primary dentition.

말티즈견에서 발생한 승모판폐쇄부전 1례

전소분,박혜연,김선아,정금선,이영원,박성준,김덕환,송근호 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-

A 10 years old, intact male, Maltese dog with clinical signs of labored respiration, exercise intolerance and increasing of coughing was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. Physical examination revealed tachycardia, panting and mild cyanosis. This case was diagnosed as mitral valve insufficiency by clinical signs, ascultation, blood chemistry, radiography and electrocardiography. This dog was treated with ACE inhibitor (enalapril), diuretics (furosemide) and bronchodilator (aminophylline) for 14 days. After treatment, clnical signs were disappeared and also this dog was needed to be continuous monitoring and sodium restricted diet.

충남대학교 학술림 산책로 훼손실태 및 관리방안에 관한 연구

이준우,김명준,최윤호,전용준,오도교,김민호,이소연,이경형 충남대학교 농업과학연구소 2004 농업과학연구 Vol.31 No.2

This study concentrates an the trail of the CNU(Chungnam National University) forest. The amount of use and the pattern of damage are considered, as well as the extent of environmental damage. Finally, some managerial strategies are proposed in connection with sustainable maintenance. The trail of the university forest is composed of three sections; one is the neighborhood park and the Institute of Information Technology/Communications, the second is the Institute of Information Technology/Communications and the Dormitory, and the third section is the Dormitory and the Foreign prof's Apt. The total length of the trail is 2.6km. The daily amount of use is 1,269 visitors per day. The amount of using increased three times the amount of that in 1998. This study shows the pattern of damage of the trail in the order of root-exposure, widening, rock-exposure, deepening and the divergence in the frequency of occurrence of all these factors. Environmental damage is also graded thus: grade 3 is 27.4m, grade 4 is 0.8m, grade 5 is 1.5m, and grade 6 is 0.2m. Accordingly, some managerial strategies were proposed in connection with the sustainable trail maintenance.

소아에서 간질발작의 임상양상과 뇌파검사의 관계

이승현(Seung Hyeon Lee),손동우(Dong Woo Son),은병욱(Byung Wook Eun),심소연(So Yeon Sim),최덕영(Deok Young Choi),선용한(Yong Han Sun),조강호(Kang Ho Cho0, 류 일(Eell Ryoo),전인상(In Sang Jeon0, 차 한(Hann Tchah) 대한소아신경학회 2009 대한소아신경학회지 Vol.17 No.2

목적:발작의 분류는 발작의 원인, 예후를 추정하거나 항경련제를 선택하는 데 있어 매우 중요하며 뇌파검사는 발작의 종류를 구분하고 적절한 치료를 하기 위해 시행하는 중요한 검사이다. 저자들은 소아에서 임상적 발작이 확실한 경우 간질발작의 임상양상과 뇌파검사 간의 일치 정도를 알아보고자 한다. 방법:2000년 1월 1일부터 2008년 9월 30일까지 1회 이상의 간질발작을 주소로 가천의대 길병원 소아청소년과에 방문한 환자 중 본원에서 처음으로 뇌파검사를 시행한 환자를 대상으로 하였다. 발작의 임상양상은 목격자와 본인의 설명을 기록한 의무기록지를 기준으로 하여 부분발작과 전신발작으로 분류하였고 뇌파검사는 발작간간질양방전을 기준으로 정상과 비정상으로 분류하였으며 각성과 수면상태 모두에서 시행하였다. 결과:총 461명의 환자의 뇌파검사 시의 평균 연령은 6.7세였고 남자는 247명, 여자는 214명이었다. 전체 환자에서 발작의 임상양상은 부분발작이 310명, 전신발작이 187명이었다. 각성뇌파검사에서 비정상은 158명으로 부분발작파가 118명, 전신발작파가 59명, 두 가지 발작파가 한 환자에서 나온 경우가 19명이었고, 수면뇌파검사에서는 비정상이 239명으로 부분발작파가 196명, 전신발작파가 77명, 두 가지 발작파가 한 환자에서 나온 경우가 34명이었으며 전체 환자에서는 비정상이 273명으로 부분발작파가 216명, 전신발작파가 97명, 두 가지 발작파가 한 환자에서 나온 경우가 40명이었다. 간질증후군은 전체 환자 중 90명에서 관찰되었다. 146명(41.5%)의 부분발작과 44명(23.4%)의 전신발작 및 79명(87.8 %)의 간질증후군이 뇌파소견과 일치하였다. 결론:영유아 및 소아에 있어 발작을 진단할 때에는 발작양상 분 아니라 정확한 뇌파소견을 세심하게 고려하여야 한다. Purpose:Electroencephalography(EEG) is an essential method carried out for classifying seizures and taking appropriate treatment. The aim of this study is to investigate the concordance between clinical findings of epileptic seizures and EEG in children. Methods:We enrolled 461 patients from those who visited Gil hospital from January 1, 2000 to September 30, 2008 with the chief complaint of epileptic seizure more than once and checked their first EEG at the same hospital. The clinical findings of seizure were based on the charts and interictal waking and sleep EEGs were done. Results:The mean age of the patients was 6.7 years old. 497 epileptic seizures occurred and its clinical finding included 310 of partial seizures and 187 of generalized seizures. In 315 waking EEG 158 were abnormal including 118 of partial seizures, 59 of generalized seizures and 19 of both seizures, in 431 sleep EEG 239 were abnormal including 196 of partial seizures, 77 of generalized seizures and 34 of both seizures, and in waking and/or sleep EEG 273 were abnormal including 216 of partial seizures, 97 of generalized seizures and 40 of both seizures. Epileptic syndromes were observed in 90 patients. 146(41.5%) of partial seizures, 44(23.4%) of generalized seizures, and 79(87.8%) of epileptic syndromes accorded with EEG. Conclusion:When diagnosing seizures in children, we must consider not only clinical findings but also accurate EEG findings.

Pharmaco-Therapeutic Effects of Astragalus Membranaceus Bunge Leaves on ADHD

So-Yeon Jeon,Yu-Jeong Kim,Yukiori Goto,Sang-Hyun Lee,Young-A Lee 한국식품영양과학회 2017 한국식품영양과학회 학술대회발표집 Vol.2016 No.10

[11C]-(R)-PK11195 positron emission tomography in patients with complex regional pain syndrome: A pilot study

Jeon, So Yeon,Seo, Seongho,Lee, Jae Sung,Choi, Soo-Hee,Lee, Do-Hyeong,Jung, Ye-Ha,Song, Man-Kyu,Lee, Kyung-Jun,Kim, Yong Chul,Kwon, Hyun Woo,Im, Hyung-Jun,Lee, Dong Soo,Cheon, Gi Jeong,Kang, Do-Hyung Williams & Wilkins Co 2017 Medicine Vol.96 No.1

ABSTRACT: Complex regional pain syndrome (CRPS) is characterized by severe and chronic pain, but the pathophysiology of this disease are not clearly understood. The primary aim of our case–control study was to explore neuroinflammation in patients with CRPS using positron emission tomography (PET), with an 18-kDa translocator protein specific radioligand [C]-(R)-PK11195. [C]-(R)-PK11195 PET scans were acquired for 11 patients with CRPS (30–55 years) and 12 control subjects (30–52 years). Parametric image of distribution volume ratio (DVR) for each participant was generated by applying a relative equilibrium-based graphical analysis. The DVR of [C]-(R)-PK11195 in the caudate nucleus (t(21) = −3.209, P = 0.004), putamen (t(21) = −2.492, P = 0.022), nucleus accumbens (t(21) = −2.218, P = 0.040), and thalamus (t(21) = −2.395, P = 0.026) were significantly higher in CRPS patients than in healthy controls. Those of globus pallidus (t(21) = −2.045, P = 0.054) tended to be higher in CRPS patients than in healthy controls. In patients with CRPS, there was a positive correlation between the DVR of [C]-(R)-PK11195 in the caudate nucleus and the pain score, the visual analog scale (r = 0.661, P = 0.026, R = 0.408) and affective subscales of McGill Pain Questionnaire (r = 0.604, P = 0.049, R = 0.364). We demonstrated that neuroinflammation of CRPS patients in basal ganglia. Our results suggest that microglial pathology can be an important pathophysiology of CRPS. Association between the level of caudate nucleus and pain severity indicated that neuroinflammation in this region might play a key role. These results may be essential for developing effective medical treatments.

Histamine H3 Receptor Antagonists Improves ADHD-Like Symptoms in Rats with Neonatal Habenula Lesion

So-Yeon Jeon,Yu-Jeong Kim,Na-Hyun Kim,Yukiori Goto,Young-A Lee 한국식품영양과학회 2017 한국식품영양과학회 학술대회발표집 Vol.2016 No.10

LETTER TO THE EDITOR : Epithelioid sarcoma with spontaneous pneumothorax and massive pleural effusion

( So Yeon Jeon ),( Ho Young Yhim ),( Na Ri Lee ) 대한내과학회 2016 The Korean Journal of Internal Medicine Vol.31 No.1

Pharmaco-therapeutic Effects of Ecklonia Stolonifera Okamura on ADHD

So-Yeon Jeon,Na-Hyun Kim,Yukiori Goto,Jae-Sue Choi,Young-A Lee 한국식품영양과학회 2018 한국식품영양과학회 학술대회발표집 Vol.2018 No.10