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Liquid‐Crystalline Blue Phase Laser with Widely Tunable Wavelength (Adv. Mater. 21/2013)
Hur, Sung‐,Taek,Lee, Bo Ram,Gim, Min‐,Jun,Park, Kyung‐,Won,Song, Myoung Hoon,Choi, Suk‐,Won WILEY‐VCH Verlag 2013 ADVANCED MATERIALS Vol.25 No.21
<P>A liquid‐crystalline blue‐phase laser with a tunable photonic bandgap (PBG) of over 150 nm and a wide temperature range is demonstrated by Myoung Hoon Song and Suk‐Won Choi on p. 3002. A lasing peak shift of more than 100 nm is realized due to the large PBG shift of the liquid‐crystalline blue phase. The shift in the lasing wavelength was reversible during repeated temperature changes over the entire stability range of the liquid‐crystalline cubic blue phase. </P>
임석원 ( Suk Won Yim ),하정희 ( Jung Hee Ha ),박성수 ( Sung Soo Park ) 한국체육사학회 2014 체육사학회지 Vol.19 No.3
스킨스쿠버다이빙이 한국의 수권스포츠 중 수중분야로서 도입 된 것은 현재 약 반세기에 근접한 자취를 보이고 있고, 아직 수중스포츠 분야의 연혁에 관련된 선행연구가 없는 관계로 그 이력을 사료(史料)를 통해 상고(詳考)하여 한국체육사 분야의 기초자료로 제공할 필요성이 있다. 따라서 본 연구의 목적은 스킨스쿠버다이빙의 한국 도입 초기 상황에 대하여 고증하는 것이다. 이 목적의 실현을 위한 연구방법으로 신문, 잡지, 단행본 등을 이용한 문헌고찰을 하며, 이것에 따른 결과는 다음과 같다. 첫째, 수중스포츠 단체 창설 이전의 상황에서 수중활동의 시작은 군사적 목적으로 이루어졌다. 둘째, 수중스포츠 단체 창설 이후의 상황에서는 초대 단체장으로 약 18년간 재직한 김상겸의 노력과 총 네번의 단체의 명칭 변화 과정이 있었다. 셋째, 단체창설 후 활동에서는 그것의 확산을 위해 강습회 및 대회를 이용하였음을 알 수 있었다. In the relationship there is no previous research you have to show a trajectory close to about half the current century, related to the history of the hand field of sports still, skin scuba diving to have been introduced as a water area of authorized sport in Korea, feed its history there is a need through the The appeal, is provided as basic information in the field of sport history Korea. The purpose of this paper is to introduce Korea documented the initial state of the skin diving for the situation. It is as follows: After conducting the literature discussed using newspapers, magazines, and books as research methods for the realization of this purpose, in accordance therewith. First, in the context of the founding of previous water sports groups, in Korea, the start of the water activities, was conducted for military purposes. Second, in the context of the founding after water sports organization, there was effort and Kim Sang-kyoum was in office about 18 years to the original chief, courses renamed the corporation of a total of four times. Third, the outreach creation after corporation, it was possible to know that it is using the competition and training sessions for the dissemination thereof.
The Longitudinal Trend of Cardiac Surgery in Korea from 2003 to 2013
Lee, Kyeong Soo,Kim, Chang Suk,Park, Jong Heon,Hwang, Tae Yoon,Kim, Sang Won,Sim, Sung Bo,Lee, Kun Sei The Korean Society for Thoracic and Cardiovascular 2016 The Korean Journal of Thoracic and Cardiovascular Vol.49 No.sup
Background: The purpose of this study was to investigate longitudinal changes of the utilization of operational and surgical medical care inside and outside a metropolitan area over 10 years, analyzing the residential areas of patients and the locations of medical facilities for major cardiovascular surgery. Methods: Data analysis was conducted by classifying the addresses of patients and the locations of medical care facilities of metropolitan cities and provinces, using data from the National Health Insurance Corporation from January 2003 to December 2013. Results: There is serious concentration of major heart surgery to medical facilities in Seoul; this problem has not improved over time. There were differences in percentages of surgical procedures performed in the metropolitan areas according to major diseases. In the case of Busan and Daegu provinces, at least 50% of the patients underwent surgery in medical facilities in the city, but there are other regions where the percentage is less than 50%. In the case of provinces, the percentage of surgical procedures performed in medical facilities in Seoul or nearby metropolitan cities is very high. Conclusion: Policies to strengthen the regional capabilities of heart surgery and to secure human resources are required to mitigate the concentration of patients in the capital area. Many regional multi-centers must be designated to minimize unnecessary competition among regional university hospitals and activate a win-win partnership model for medical services.
소기숙,최회강,박소영,고강훈,김성남,이옥자,윤민영,문형철,김성철,이정훈,나원경,So, Ki-suk,Choi, Hoi-kang,Park, So-young,Koh, Kang-hun,Kim, Sung-nam,Lee, Ok-ja,Yun, Min-young,Mun, Hyung-chul,Kim, Sung-chul,Lee, Jung-hun,Na, Won-kyung 대한침구의학회 2004 대한침구의학회지 Vol.21 No.1
Objective: Recently scolopendrid aquacupuncture has been a good effect on pain control but it has not been known about clinical safety. So, In order to prove the clinical safety of scolopendrid aquacupuncture, We have observed the physical reac-tion and clinical pathology test after scolopendrid aquacupuncture treatment. Methods: We analyzed physical reaction and clinical pathology test before and after Scolopendrid aquacupuncture treatment of 30 patients suffering from pain, who admitted department of Acupunture and Moxibustion, College of Oriental Medicine, Won-Kwang University Kwangju hospital. Results & Conclusions: The results were summarized as follows. 1) The distribution of sex was 14 males and 16 females, and the average of patients age was 46.2 years. 2) The distribution of symptom was lumbago, lumbago with radiating pain, nuchal pain and knee joint pain. 3) In the 30 patients treated with Scolopendrid aquacupuncture, hematologic test did not show remarkable change. 4) In the 30 patients treated with Scolopendrid aquacupuncture, Liver function test(AST, ALT, ALP) showed a slight decrease on the contrary, and abnormal rate showed a decrease of 1.0%(from 3.3% to 2.3%) compared with previous study. 5) In the 30 patients treated with Scolopendrid aquacupuncture, Renal function test(BUN, Cr) and abnormal rate(from 2.5% to 2.0%) showed a slight decrease on the contrary. 6) In the 30 patients treated with Scolopendrid aquacupuncture. Electrolyte were normal range before & after treatment. 7) In the results of the Urine analysis of 30 patients, Leukocyte, Protein. Glucose, Keton, Bilirubin, U-bilinogen were not detected before and after Scolopendrid aquacupuncture treatment, and the rest almost made no difference. 8) In the Physical reactions, all of the patients complained of pain of body partially, only one patient showed reddish and itch, but symptoms like those were entirely disappeared within 24 hours and whole body pain, swelling, headache, dizziness, fatigue and nausea was not observed.
A New High-Yielding, Storability Leaf Lettuce Cultivar, “Jeoksagye”
Suk-Woo Jang,Won Bae Kim,Hae Hune Hwang,Sun Bo Ko,Jae Ho Park,Sang-Woo Lee 한국육종학회 2005 한국육종학회지 Vol.37 No.2
A new high yield and storability lettuce (Lactuca sativa L.) cultivar “Jeoksagye” was developed from a cross NAAES DL 114 (late bolting and high yield) and NAAES DL 108 (late bolting and disease resistance) in 1997. We selected desired characteristics in advanced lines generated by pedigree method until 2001. Especially, we advanced two generations in 2001, and four lines were selected. These lines were evaluated for yield and stability in 5 areas (Gangwon, Gyeonggi, Chungbuk, Gyeongnam, and Jeju) for 2 years in Korea. The “Jeoksagye” has gray seed color and transverse elliptic leaves. Compared to Ttugseom-jeokchugmyeon marketable yield of “Jeoksagye” was heavier as a 513 g per plant, 1.5 times more than that of per leaf, and also can be stored 3 weeks more at 4oC. The taste of “Jeoksagye” is sweet and contains less amount of total bitter sesquiterpene lactones (BSL) of 132.1 μg/g than the check variety of 324.1 μg/g dry weight.
Won-Suk Song,Han-Gyu Park,Seong-Min Kim,Sung-Hyun Jo,Byung-Gee Kim,Ashleigh B. Theberge,Yun-Gon Kim 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.83 No.-
Short chain fatty acids (SCFAs) are end products of fermentation by anaerobic gut microbiota. They can beused as beneficial metabolites to regulate the host’s physiological processes. Despite their importance,SCFAs are difficult to analyze with mass spectrometric technologies due to their poor ionizationefficiency and susceptibility to water loss during ionization of low molecular weight organic acids. Here,we developed a sensitive and reliable method to quantify SCFAs by liquid chromatography tandem massspectrometry (LC–MS/MS) in multiple reaction monitoring (MRM) mode. SCFAs were chemicallyderivatized by Girard’s reagent T (GT), providing a permanent cationic charge. This techniquedemonstrated an excellent quantitative capacity, showing good linearity (R2> 0.99) and limit ofquantification (femtomole levels) forfive SCFAs (i.e., acetate, propionate, butyrate, valerate, andcaproate). Next, we applied this derivatization method to quantitate SCFAs from a small volume of totalextracellular metabolites produced by Eubacterium rectale (E. rectale), one of main butyrate-producinggut bacteria. GT-labeled SCFAs were quantitated well in small volumes of culture medium (5, 10, 15, and20 mL), with the amount of SCFA measured being proportional to the volume of culture medium, asexpected. We also investigated plant-derived polysaccharides as prebiotics that could enhance theproduction of butyrate by E. rectale. Finally, the production of butyrate was successfully monitored in aco-culture system for E. rectale and Bifidobacterium longum (B. longum) by analyzing GT-labeled butyrate. Taken together, our results suggest that this highly sensitive method would be useful for quantifyingSCFAs extracted from stool in an aqueous solution to monitor gut health.
Changes in the Clinical Features of Acute Hepatitis A Between Two Peak Periods in Korea
( Sang Won Lee ),( Kwang Woo Nam ),( Ki Bae Bang ),( Jun Ho Choi ),( Hyun Deok Shin ),( Suk Bae Kim ),( Jung Eun Shin ),( Hong Ja Kim ),( Il Han Song ) 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1
Aims: The number of the patients with acute hepatitis A is increasing due to improved hygienic environment and low seroprevalence of anti-HAV IgG in Korea. There were two peak periods of acute hepatitis A about 10 years ago and last year. This study aims to analyze the changes of the clinical features of acute hepatitis A patients between two peak periods in Korea. Methods: Patients with acute hepatitis A who had been hospitalized at Dankook University Hospital from 1998 to 2019 were included. We reviewed patient’s medical records especially, two peak periods (2008-2009 vs. 2019). Results: From 1998 to 2019, total 798 patients had admitted with acute hepatitis A. The mean age of the patients was 33.0 ± 10.1 years, and male patients (61.4%) were more. The mean peak AST and ALT were 2407.1 ± 2892.2 IU/L and 2547.2 ± 1896.3 IU/L. Total 8 (1%) patients were not recovered. Among 8 patients, 6 patients took liver transplantation and 2 patients expired. There were two peak periods for 22 years. First peak period was 2008-2009 year (219 patients) and second peak period was 2019 year (106 patients). The mean age increased from 31.7 ± 8.8 to 40.1 ± 9.4 years The proportion of male patients decreased from 69.4% to 58.5%. The symptom duration days decreased from 7.6 ± 8.0 days to 6.0 ± 3.9 days and total admission days also decreased from 7.4 ±3.4 days to 5.9 ± 3.2 days. The peak INR increased from 1.3 ± 0.5 to 1.4 ± 0.6. The death or transplantation rate increased from 0.9% to 2.8%. Conclusions: The mean age of patients with acute hepatitis A increased about 9 years over two peak periods. The death or transplantation rate increased very much although the admission days decreased.