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Estimates of Aerosol Indirect Effect from Terra MODIS over Republic of Korea
Jung, Woon-Seon,Panicker, A. S.,Lee, Dong-In,Park, Sung-Hwa Hindawi Limited 2013 Advances in meteorology Vol.2013 No.-
<P>Moderate resolution imaging spectroradiometer (MODIS) data have been analyzed over four different regions (Yellow sea, Korean inland, East Sea, and South Sea) in Republic of Korea to investigate the seasonal variability of aerosol-cloud properties and aerosol indirect effect during the past decade (2000–2009). Aerosol optical depth (AOD) was found to be consistently high during spring. Cloud ice radius (CIR) also showed higher values during spring, while an enhancement in cloud water radius (CWR) and fine mode fraction (FMF) was observed during summer. AOD and aerosol index (AI) were found to be higher during January to June. However, FMF and CWR showed enhancement during July to December. Aerosol indirect effect (AIE) in each year has been estimated and found to be showing positive and negative indirect effects. The AIE for fixed cloud ice path (CIP) showed positive indirect effect (Twomey effect) over Yellow sea, while the AIE for fixed cloud water path (CWP) showed a major negative indirect effect (anti-Twomey effect) over all regions. During Changma (summer monsoon) period, the AIE for both CIP and CWP showed dominant anti-Twomey effect in middle and low level clouds, indicating the growth of cloud droplet radius with changes in aerosols, enhancing the precipitation.</P>
A case of acantholytic acanthoma on unusual site
( Seon Gu Lee ),( Go Woon Choi ),( Seung Hui Seok ),( Ji Hae An ),( Jung U Shin ),( Hyun Jung Kim ),( Dong Hyun Kim ),( Moon Soo Yoon ),( Hee Jung Lee ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.1
Acantholytic acanthoma is a newly recognized, solitary benign tumor in which acantholysis is the hallmark. It was first described by Brownstein in 1985. It usually presents as an asymptomatic keratotic papule or nodule on the trunk. The histologic pattern resembles that seen in pemphigus or Hailey-Hailey disease. To our knowledge, only few cases have been reported as acantholytic acanthoma on the face. A 66-year-old woman visited our clinic with a solitary, 0.7 cm sized erythematous plaque on the forehead which had developed 1 year ago. A punch biopsy specimen revealed hyperkeratosis, acanthosis and marked acantholysis with a suprabasal acantholytic cleft. Dyskeratotic cells such as corps ronds or grains were not prominently observed. Acantholytic acanthoma was diagnosed based on the clinical and histologic findings. The patient is under observation without other treatments. Herein, we report a case of acantholytic acanthoma on the face which is an unusual site with review of the literature.
Eccrine poroma mimicking keratoacanthoma on the forehead
( Seon Gu Lee ),( Go Woon Choi ),( Seung Hui Seok ),( Ji Hae An ),( Jung U Shin ),( Hyun Jung Kim ),( Dong Hyun Kim ),( Moon Soo Yoon ),( Hee Jung Lee ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.1
Eccrine poroma is a common, slow-growing solitary adnexal tumor originating from the intraepidermal ductal portion of the eccrine sweat duct. It can occur anywhere on the body where eccrine gland exists and most commonly found on the sole and palm. It usually occurs in middle-aged or elderly adults as a solitary, asymptomatic flesh-colored or pink nodule. A 63-year-old man visited our clinic with a solitary, 1 cm sized erythematous nodule with central umbilication on the forehead which had developed 1 year ago. Initial impression was keratoacanthoma, considering the characteristic clinical features and site of lesion. A punch biopsy was performed for accurate diagnosis. Histologic findings indicated the broad anastomosing bands of monomorphic cuboidal cells with intercellular bridges and occasional ductal lumina growing downward into the dermis. Eccrine poroma was diagnosed based on the histologic findings. The patient was treated by complete excision. The skin lesion was completely removed and there was no recurrence to date. Herein, we report a case of eccrine poroma on the forehead that clinically mimicked keratoacanthoma. Physicians should be aware of this possibility and perform a histopathologic evaluation to facilitate an accurate diagnosis.
Kim, Seon-Kyu,Kim, Kwangho,Ryu, Jea-Woon,Ryu, Tae-Young,Lim, Jung Hwa,Oh, Jung-Hwa,Min, Jeong-Ki,Jung, Cho-Rok,Hamamoto, Ryuji,Son, Mi-Young,Kim, Dae-Soo,Cho, Hyun-Soo D.A. Spandidos 2018 International journal of oncology Vol.54 No.1
<P>Molecular classifications of breast cancer (BRC), such as human epidermal growth factor receptor 2 (HER2), luminal A and luminal B, have been developed to reduce unnecessary treatment by dividing patients with BRC into low- and high-risk progression groups. However, these methods do not cover all of the pathological characteristics of BRC, and investigations into novel prognostic/therapeutic markers are thus continually required. In this study, we identified the overexpression of the histone methyltransferase, euchromatic histone-lysine N-methyltransferase 2 (EHMT2) in BRC samples (n=1,222) and normal samples (n=113) derived from the TCGA portal by performing a BRC tissue microarray. EHMT2 overexpression was clearly associated with a poor prognosis in multiple cohorts of patients with BRC (total, n=1,644). Furthermore, the knockdown of EHMT2 expression affected cell apoptosis via the downregulation and re-localization of heat shock protein family D (Hsp60) member 1 (HSPD1). In addition, a statistically significant positive correlation between EHMT2 and HSPD1 expression was revealed in the clinical cohorts. On the whole, the findings of this study may assist the development of novel therapeutic strategies and provide a prognostic marker (EHMT2) for patients with BRC.</P>
김정형,김주영,서경아,서정원,이숙희,정혜정,조운정,한재정,한성숙,오경원,이혜련,박소미,채선희,최윤정 연세대학교 생활과학대학 1986 婦學 Vol.19 No.-
A survey was carried out to determine the nutritional status of rural elderly. The subjects of this study comprised of eightyseven persons aged sixty years and over in Seoul area. The questionnaire was disigned to investigate the environmental status of the subjects. At the same time, twentyfour hour dietary recall method was used to estimate their nutrient intakes. The results are summerized as follows: ㆍ Mean body weight and height of subjects were 53.3±12.7㎏ and 153.3±1.6㎝ respectively. ㆍ The chief somatic complains of subjects were fatigue(75.9%), amnesia(66.7%), rheumatism(65.5%) and Joint pain of muscleache(64.4%). ㆍ Most of subjects(74.4%) answered that their appetite changed with increasing age. ㆍ Daily nutrient intakes of subjects were sufficient as from 120 to 150% of RDA. ㆍ The nutritional status of subjects including energy, protein, vitamin and mineral intakes was proven to be improved than the results obtained from the earlier studies.
2010년 3월 20일 부산지역에 발생한 극심한 황사의 에어로솔 농도 분포 특성
정운선 ( Woon Seon Jung ),박성화 ( Sung Hwa Park ),이동인 ( Dong In Lee ),강덕두 ( Deok Du Kang ),김동철 ( Dong Chul Kim ) 한국환경과학회 2014 한국환경과학회지 Vol.23 No.2
Asian dust (or yellow sand) occurring mainly in spring in East Asia is affected by the distribution of weather systems. This study was performed to investigate the characteristics of suspended particulate for Asian dust at Busan, Korea in 20 March 2010, which was one of the extreme case for the last 10 years. There was used the data of weather chart, satellite, automatic weather system (AWS), PM10, laser particle counter (LPC), and backward trajectories model. In synoptically, the high pressure was located in the northwestern part and low pressure was located in the northeastern part of Korea. The strong westerly winds from surface to upper layer makes it possible to move air masses rapidly. Air masses passing through Gobi Desert in Mongolia and Inner Mongolia plateau covered the entire Korean peninsula. As the results of aerosol analysis, PM10 concentration at Gudeok mountain in Busan was recorded 2,344 ㎍/m3 in 2300 LST 20 March 2010 and their concentration was markedly increased at coarse mode particle. In surface condition, westerly wind about 3 ∼ 5 m/s was dominant and small particles of 0.3 ∼ 0.5 ㎛ were distributed on the whole. In heavy metal components analysis, the elements from the land was predominated.
정운선 ( Woon Seon Jung ),박성화 ( Sung Hwa Park ),강덕두 ( Deok Du Kang ),이동인 ( Dong In Lee ),김동철 ( Dong Chul Kim ) 한국환경과학회 2014 한국환경과학회지 Vol.23 No.1
The seasonal variation of pH and ion components in precipitation were investigated from January to December 2009 at Busan, Korea. The precipitation was acidic with a volume-weighted mean pH concentration of 5.32, which ranged from 3.79 to 8.66. The volume-weighted mean conductivity showed 86.77 μS/cm and indicated higher concentration about 96.69 μS/cm in summer. The volume-weighted mean equivalent concentration of components followed the order: K+ > Ca2+ > nss-Ca2+ > NH4+ > Mg2+ > Na+ > Li+ in cations and Cl- > SO42- > nss-SO42- > NO3- > NO2- > F- > Br- in anions. Particularly, concentration of K+ and Cl- showed 56 and 78 % in cations and anions. The higher concentration in K+, Na+, Mg2+ and Cl- were shown in Busan city as compared to the other cities. The neutralization factors have been found to have higher value for potassium ion in winter compared with different seasons, indicating significant neutralization of acidic components over the region by potassium. Therefore, the precipitation characteristics at Busan had both continental and coastal as consequence of pH, conductivity and ionic analyses.
이어도 해양종합과학기지에서의 3차원 바람성분에 따른 에어로솔 수 농도 변동 특성
박성화(Sung-Hwa Park),장상민(Sang-Min Jang),이동인(Dong-In Lee),정운선(Woon-Seon Jung),정종훈(Jong-Hoon Jung),정성아(Sung-A Jung),정창훈(Chang Hoon Jung),김경식(Kyungsik Kim),김경익(Kyung-Eak Kim) 한국기상학회 2012 대기 Vol.22 No.1
To investigate variation of aerosol number concentration at each different size with three-dimensional (3D) wind components in ocean area, aerosol particles and 3D wind components were measured in the Ieodo Ocean Research Station, which is located to 419 km southwest from Marado, the southernmost island of Korea, from 25 June to & July 2010. The Laser Particle Counter (LPC) and ultrasonic anemometer were used to measure the size of aerosol particles and 3D wind components (zonal (u), meridional (v)), and vertical (w) wind) respectively. Surface weather chart, NCEP/NCAR reanalysis data and sounding data were used to analyze the synoptic condition. The distribution of aerosol number concentration had a large variation from bigger particles more than 1.0μm in diameter by wind direction during precipitation. In the number concentration of aerosol particles with respect to the weather conditions, particles larger than 1.0μm in size were decreased and sustained to the similar concentration at smaller particles during precipitation. The increase in aerosol number concentration was due to the sea-salt particles which was suspended by southwesterly and upward winds. In addition, the aerosol number concentration with vertical wind flow colud be related with the occurrence and increasing mechanism of aerosol in marine boundary layer.
Relationship between Perceived Oral Symptoms and Oral Health Status
Seon-Ju Sim,Ji-Yoon Hwang,Yeo-Joo Yoon,Mina Park,Da-woon Jung,Ja-Young Moon 대한임상예방치과학회 2011 International Journal of Clinical Preventive Denti Vol.7 No.3
Objective: The purpose of this study was to examine the relationship between perceived oral health and oral health status. Methods: The oral examination and survey data of 219 subjects over 40 years of age were analyzed. All individuals were interviewed by self-reporting questionnaire that focused on previous diseases, vascular risk factors (hypertension, diabetic mellitus, cardiac disease), smoking and drinking habits, social history, BMI, the frequency of daily tooth brushing and the presence of regular dental visits. Dental survey was conducted in relations to the number of teeth, DMFT index, and the pocket depth. Results: 1. Better perceived oral health status was likely to rate their periodontal conditions as good with more teeth remaining and less dental caries. 2. With increasing DMFT index, perceived oral health and periodontal conditions were rated poorly with a severe dry mouth experience. 3. With high CPITN index, perceived periodontal conditions were rated poorly with less number of teeth remaining and a severe dry mouth condition. 4. In a multivariate analysis adjusted for socioeconomic status, hypertension, diabetes mellitus, frequency of daily tooth brushing and regular dental visits, the better perceived oral health status is, the lower DMFT index is. Conclusion: Self-rated oral health is a simple measure and reflects not only the objective oral status but also the socioeconomic status and the psychological effects of oral health. Thus, we should actively use the perceived oral health criteria to promote the nation's oral health.