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Arthonia dokdoensis and Rufoplaca toktoana – Two New Taxa from Dokdo Islands (South Korea)
( Sergij Kondratyuk ),( László Lőkös ),( Josef Halda ),( Beeyoung Gun Lee ),( Seol-hwa Jang ),( Jeong-jae Woo ),( Jung Shin Park ),( Soon-ok Oh ),( Sang-kuk Han ),( Jae-seoun Hur ) 한국균학회 2019 Mycobiology Vol.47 No.4
Arthonia dokdoensis sp. nov., a lichenicolous fungus from the subcosmopolitan Arthonia molendoi complex growing on crustose thalli of species of the genus Orientophila (subfamily Xanthorioideae, Teloschistaceae), as well as the lichen species Rufoplaca toktoana sp. nov. (subfamily Caloplacoideae, Teloschistaceae) similar to Rufoplaca kaernefeltiana, both from Dokdo Islands, Republic of Korea, are described, illustrated, and compared with closely related taxa. In the phylogenetic tree of the Arthoniaceae based on 12S mtSSU and RPB2 gene sequences, the phylogenetic position of the A. dokdoensis and the relationship with the A. molendoi group are illustrated, while the position of the newly described R. toktoana is confirmed by phylogenetic tree based on ITS nrDNA data.
열공형과 비열공형 피질하 혈관성 치매에서 위험인자의 차이에 관한 비교 연구
배희준,정지향,유경호,나덕렬,김상윤,최경규,양동원,손의주,이상도,김재우,박경원,김응규,이재홍,박미영,한일우,함동석,최문성,하충건,최성혜,이애영,이병철,한설희 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2
Backgrounds and Objectives: Vascular dementia is a group of dementing disoders arising from various stroke syndrome. Among these. subcortical ischemic vascular dementia (SIVD) is regarded as a relatively distinct clinical entity. However, MRI patterns of SIVD are not homogenous. In some patients, lacunes are dominant, and in others, subcortical white matter changes are. This study was designed to compare risk factor profiles between SIVD with and without multiple lacunes. Methods: We divided 47 subjects (22 males, mean age. 68 years) recruited from VADAPET (Multicenter Trial For Evaluation Of The Changes In the PET Images Of Subcortical Vascular Dementia Patient) study into two groups one with more than 5 lacunes in deep gray matter (lacune group) and the other with 5 or less(non-lacune group) Clinical characteristics and laboratory findings of two groups were compared. Results: Nineteen of 47 patients (40%) belonged to the lacune group. The lacune and non-lacune groups d d not differ in the following variables: age, hypertension, diabetes mellitus, hyperlipidemia heart disease, history of stroke or TIA, history of trauma or major surgery, family history of hypertension stroke, or dementia, age at diagnosis of dementia, body mass index, white blood cell count, ESR, CRP, fibrinogen, hemoglobin A1C, total cholesterol. LDL cholesterol creatinine, proteinuria, glucosuria, and microhematuria. However, male sex, smoking alcohol. hemoglobin, and HDL cholesterol were possibly associated more with lacune group SIVD than with non-lacune group (p<0 1) Multivariate analyses revealed that smoking, hemoglobin, and HDL cholesterol were independent predictors of SIVD with multiple lacunes Conclusion: Our study suggests that SIVD with multiple lacunes may be significantly different in smoking habits hemoglobin, and HDL cholesterol from SIVD without multiple lacunes.
Bae, Sung Hae,Ryu, Hoon,Rhee, Ki-Jong,Oh, Ji-Eun,Baik, Soon Koo,Shim, Kwang Yong,Kong, Jee Hyun,Hyun, Shin Young,Pack, Hyun Sung,Im, Changjo,Shin, Ha Cheol,Kim, Yong Man,Kim, Hyun Soo,Eom, Young Woo,L Informa UK Ltd. 2015 Growth factors Vol.33 No.2
<P>L-ascorbic acid 2-phosphate (Asc-2P) acts as an antioxidant and a stimulator of hepatocyte growth factor (HGF) production. Previously, we reported that depletion of growth factors such as fibroblast growth factor (FGF)-2, epidermal growth factor (EGF), FGF-4 and HGF during serial passage could induce autophagy, senescence and down-regulation of stemness (proliferation via FGF-2/-4 and differentiation via HGF). In this study, we investigated the proliferation and differentiation potential of BMSCs by FGF-2 and Asc-2P. Co-treatment with FGF-2 and Asc-2P induced optimal proliferation of BMSCs and increased the accumulation rate of BMSC numbers during a 2-month culture period. Moreover, differentiation potential was maintained by co-treatment with FGF-2 and Asc-2P via HGF expression. Adipogenic differentiation potential by FGF-2 and Asc-2P was dramatically suppressed by c-Met inhibitors (SU11274). These data suggest that co-treatment with FGF-2 and Asc-2P would be beneficial in obtaining BMSCs that possess 'stemness'' during long-term culture.</P>
Is propofol safe when administered to cirrhotic patients during sedative endoscopy?
( Sang Jun Suh ),( Hyung Joon Yim ),( Eileen L Yoon ),( Beom Jae Lee ),( Jong Jin Hyun ),( Sung Woo Jung ),( Ja Seol Koo ),( Ji Hoon Kim ),( Kyung Jin Kim ),( Rok Son Choung ),( Yeon Seok Seo ),( Jong 대한내과학회 2014 The Korean Journal of Internal Medicine Vol.29 No.1
Background/Aims: In patients with liver cirrhosis, drugs acting on the central nervous system can lead to hepatic encephalopathy and the effects may be pro-longed. Recently, misuse of propofol has been reported and the associated risk of death have become an issue. Propofol is commonly used during sedative endoscopy; therefore, its safety in high-risk groups must be further investigated. We performed a pilot study of the safety and effi cacy of propofol during endos-copy in Korean patients with cirrhosis. Methods: Upper gastrointestinal endoscopy was performed under sedation with propofol along with careful monitoring in 20 patients with liver cirrhosis and 20 control subjects. The presence or development of hepatic encephalopathy was as-sessed using the number connection test and neurologic examination. Results: Neither respiratory depression nor clinically significant hypotension were observed. Immediate postanesthetic recovery at 5 and 10 minutes after the procedure was delayed in the cirrhotic patients compared with the control group; however, at 30 minutes, the postanesthetic recovery was similar in both groups. Baseline psychomotor performance was more impaired in cirrhotic patients, but propofol was not associated with deteriorated psychomotor function even in cir-rhotic patients with a minimal hepatic encephalopathy. Conclusions: Sedation with propofol was well tolerated in cirrhotic patients. No newly developed hepatic encephalopathy was observed.
A COMPUTATIONAL SIMULATION OF TWO LOW SPEED TRAINS TRAVERSE IN A TUNNEL
L G Praveen Laws,Hyun-woo Bae,Jae-yong Sung 한국도시철도학회 2015 IJAR Vol.3 No.2
In this paper a computational analysis is carried out on a two train model to probe the velocity and pressure change in the nose and tail region of the train when they depart each other. A sliding mesh technic is implemented to calculate the moving boundary analysis, and the flow field of the train/tunnel systems was elucidate by a two-dimensional, compressible, RNG K-e turbulence model. The computational analysis results are compared and verified with the filed study. The simulation results in a huge pressure change when two trains intersects each other and also the formation of swirl/vortex flow in between. So from the results it show that the formation of vortices increase the drag co-efficient and it reaches maximum when the trains intersect at the mid-point of the tunnel
Kim, Sang Min,Park, Seung Woo,Lee, Jeong Jae,Benham, Brian L.,Kim, Hak Kwan Taylor Francis 2007 Journal of Environmental Science and Health. Part Vol.42 No.3
<P> Two models were used in concert to predict nutrient loads in a waterbody receiving irrigation return flows from a rice paddy production system. Two irrigation scenarios were simulated, one using reclaimed wastewater as the irrigation water source, the other using water from a surface reservoir designed to supply irrigation water. Total nitrogen (TN) and total phosphorus (TP) loads in irrigation return flows from the rice paddy fields were simulated using the field-scale water quality model Chemical, Runoff and Erosion from Agricultural Management System model for rice paddy fields (CREAMS-PADDY). The output from CREAMS-PADDY was then used as input data for Hydrological Simulation Program-FORTRAN (HSPF) model. HSPF was used to evaluate TN and TP loads in the receiving waterbody at the watershed-scale. CREAMS-PADDY and HSPF were calibrated for both hydrology and water quality using observed data. Both CREAMS-PADDY and HSPF showed good agreement between the observed and simulated data during the calibration and validation periods. Simulation indicated that TN and TP loads from the study paddy fields increased by 207% and 1022% when reclaimed wastewater was used for irrigation compared to conventional irrigation. Irrigating paddy fields (18.8% of the 385 ha study watershed) with reclaimed wastewater increased the TN load at the watershed outlet by 10.3% and TP by 14.0%. The increase in nutrient loads was the result of the high nutrient concentration in the reclaimed wastewater. The procedures used in this research can be used to develop wastewater reuse strategies that minimize environmental impacts on watershed water quality.</P>