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State Indicator of Water Quality for Surface Water and Groundwater in Agriculture
Min-Kyeong Kim,Goo-Bok Jung,An-Sung Ro,Seung-Chul Choi,Won-Il Choi,Eun-Jeong Kim,Jong-Eun Lee,Yeo-Uk Yun,Kab-Cheol Kim,Do-Young Ko,Byeong-Ho Kim,Hyeon-Ji Kim,Sang-Jo Park,Seong-Tae Lee,Jae-Young Heo,S 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.5
Indicators of environmental conditions qualitatively and quantitatively describe the state of the environment and natural resources, and the OECD (Organization for Economic Cooperation and Development) has initiated and suggested AEIs (Agri-Environmental Indicators) to assess trends over time of the effects of agriculture on the environment and the effectiveness and efficiency of agricultural and environmental policy measures since 1990’s. This study aims to develop the state indicators of water quality for agricultural water, surface and groundwater, to evaluate the environmental impacts of agricultural activities and policies by qualifying the environmental levels of a nation. Status indicators were calculated according to the agricultural water quality standards of OECD and Korea, and their trends were analyzed over time. Particularly, nitrate(NO₃<SUP>-</SUP>) status indicators of ground water in 2013 were significantly lower than the ones in 2000. Overall, the water quality indicators of surface water in 2013 were higher than the ones in 2012, except for pH and DO. The groundwater quality indicators in 2013 were lower than those of previous years. The optimal management indicators were calculated to assess agricultural surface water and groundwater quality. The findings of this study indicated that the state indicators could play a significant role to establish policies and procedures for managing and conserving water resources. This study also discussed water pollution caused by agricultural and industrial effluents.
State Indicator of Water Quality for Surface Water and Groundwater in Agriculture
Kim, Min-Kyeong,Jung, Goo-Bok,Ro, An-Sung,Choi, Seung-Chul,Choi, Won-Il,Kim, Eun-Jeong,Lee, Jong-Eun,Yun, Yeo-Uk,Kim, Kab-Cheol,Ko, Do-Young,Kim, Byeong-Ho,Kim, Hyeon-Ji,Park, Sang-Jo,Lee, Seong-Tae,H 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.5
Indicators of environmental conditions qualitatively and quantitatively describe the state of the environment and natural resources, and the OECD (Organization for Economic Cooperation and Development) has initiated and suggested AEIs (Agri-Environmental Indicators) to assess trends over time of the effects of agriculture on the environment and the effectiveness and efficiency of agricultural and environmental policy measures since 1990's. This study aims to develop the state indicators of water quality for agricultural water, surface and groundwater, to evaluate the environmental impacts of agricultural activities and policies by qualifying the environmental levels of a nation. Status indicators were calculated according to the agricultural water quality standards of OECD and Korea, and their trends were analyzed over time. Particularly, nitrate ($NO_3{^-}$) status indicators of ground water in 2013 were significantly lower than the ones in 2000. Overall, the water quality indicators of surface water in 2013 were higher than the ones in 2012, except for pH and DO. The groundwater quality indicators in 2013 were lower than those of previous years. The optimal management indicators were calculated to assess agricultural surface water and groundwater quality. The findings of this study indicated that the state indicators could play a significant role to establish policies and procedures for managing and conserving water resources. This study also discussed water pollution caused by agricultural and industrial effluents.
( Jeong Eun Song ),( Hye Won Lee ),( Beom Kyung Kim ),( Seung Up Kim ),( Do Young Kim ),( Sang Hoon Ahn ),( Kwang-hyub Han ),( Jun Yong Park ) 대한간학회 2016 춘·추계 학술대회 (KASL) Vol.2016 No.1
Aims: Long-term suppression of hepatitis B virus (HBV) DNA by antiviralagents is thought to reduce HCC development and improve hepaticfibrosis in chronic hepatitis B. Entecavir (ETV) and tenofovir (TDF)are first-line nucleos(t)ide analogs (NA) for chronic hepatitis B (CHB) due to their high potency and low genetic barrier to resistance.However, it is not known whether there is any difference in reducingthe risk of HCC between the two NAs. The goal of this retrospectivecohort study was to compare the incidence of HCC and assess whetherhepatic fibrosis was improved in HBV related-compensated liver cirrhosis(LC) on these NAs.Methods: We retrospectively analyzed 213 NAs naive HBV-relatedcompensated LC patients who visited our hospital between 2007and 2013 and started entecavir or tenofovir. The primary objectiveof the study is to compare the incidence of HCC in 118 ETV-treatedand 95 TDF-treated patients. The secondary outcome is to observechanges of non-invasive fibrosis indexes (aminotransferase-to-plateletratio index [APRI〕 and FIB-4) through long-term antiviral therapy.Results: The mean duration of antiviral therapy was 3.4 years (ETV4.3 years and TDF 2.4 years). The cumulative probabilities of achievingvirologic response at week 96 were 93.2% and 95.8% in ETV groupand TDF group, respectively (p=0.042). After a median 1.3 years oftreatment, 14 cases of HCC were diagnosed: 7 in the ETV groupand 7 in the TDF group (5.9% vs. 7.4%, p=0.674). In both treatmentgroup, there were significant differences in the reduction of APRIand FIB-4 scores through long-term antiviral therapy.Conclusions: There is no difference in the HCC incidence betweenHBV related-compensated LC patients on ETV and TDF. Long-termantiviral therapy shows improvements in APRI and FIB-4 score.
( Do Seon Song ),( U Im Chang ),( Seong Woo Go ),( Jeong Won Jang ),( Si Hyun Bae ),( Seung Kew Yoon ),( Jin Mo Yang ) 대한간학회 2018 춘·추계 학술대회 (KASL) Vol.2018 No.1
Aims: We aimed to investigate the association between the change of muscle mass and change of fibrosis and steatosis in NAFLD patients. Methods: We analyzed 2,893 NAFLD subjects who had health check-up more than twice in St. Vincent’s Hospital between November 2009 and December 2017. NAFLD was diagnosed by ultrasound, and appendicular muscle mass (ASM) was assessed by Inbody 720, and Sarcopenia index was calculated as ASM divided by weight (SI%) and ASM divided by body mass index (SI-BMI). Non-invasive markers were used to evaluate the severity of hepatic fibrosis and steatosis; NAFLD fibrosis score (NFS), Fibrosis-4 (Fib-4) score, and Forn’s index for fibrosis, and hepatic steatosis index (HSI) and fatty liver index (FLI) for steatosis. Results: The mean age was 47.3±10.4 years, and 1956 subjects (67.6%) were male. Diabetes, hypertension, metabolic syndrome were more prevalent in sarcopenic subjects (P<0.01), and non-invasive fibrosis and steatosis markers were higher in sarcopenic subjects (P< 0.01). The mean interval between two health check-up was 39.8±21.9 months. There was no significant association between the change of NFS, Fib-4, and Forn’s index and the change of SI% and SI-BMI (all P >0.1). However, the changes of HIS and FLI were significantly associated with the change of SI% and SI-BMI (all P<0.01). Multivariate logistic analysis demonstrated the independent association between the change of skeletal muscle mass and the changes of non-invasive steatosis markers after adjusting for other confounding factors (all P< 0.001). However, the changes of non-invasive fibrosis markers did not show an independent association with the change of appendicular muscle mass after adjusting for other confounders (all P >0.1) Conclusions: The change of muscle mass is strongly associated with the change of hepatic steatosis, but not the change of fibrosis.
Characteristic Analysis of a Linear Induction Motor for 200-km/h Maglev
Jeong, Jae-Hoon,Lim, Jae-Won,Park, Do-Young,Choi, Jang-Young,Jang, Seok-Myeong The Korean Society for Railway 2015 International Journal of Railway Vol.8 No.1
As a result of the current population concentrations in urban centers, demand for intercity transportation is increasing rapidly. Railway transportation is becoming popular as an intercity transportation because of its timely service, travel speeds and transport efficiency. Among the many railway systems, the innovative and environmentally friendly maglev system has been rated very highly as the next-generation intercity railway system. Linear induction motors are widely used for the propulsion of maglev trains because of their light weight and low construction costs. The urban maglev that was recently completed in Incheon airport site employs a 110km/h class linear induction motor. However, this system was designed to meet requirements for inner-city operations and is not suitable as an intercity transportation system, which requires medium to high speeds. Therefore, this study deals with the characteristics and designs of linear induction motors used for the propulsion of maglev trains that can be used as intercity trains. Rail car specifications for high-speed trains have been presented, and the characteristics of linear induction motors that can be used for the propulsion of these trains have been derived using the finite element method (FEM).
Jeong, Miran,Jeong, Do-Won,Lee, Jong-Hoon The Korean Society for Applied Biological Chemistr 2015 Applied Biological Chemistry (Appl Biol Chem) Vol.58 No.6
We assessed the safety and biotechnological properties of 17 Enterococcus faecalis and 18 Enterococcus faecium strains isolated from Meju to select starter candidates for quality Meju production. Minimum inhibitory concentration assays showed that all strains were susceptible to ampicillin, chloramphenicol, ciprofloxacin, erythromycin, gentamicin, penicillin G, and tetracycline, as judged by the breakpoint values defined at the species level by the European Committee on Antimicrobial Susceptibility Testing, whereas two E. faecalis strains were resistant to vancomycin, which could be ascribed to acquired resistance. None of the strains exhibited ${\alpha}$- or ${\beta}$-hemolytic activities or biofilm formation. Both species showed similar levels of biogenic amine production, and noticeable amounts of tyramine ($3397.4{\pm}172.4ppm$) were produced by all strains in the presence of precursors (histidine, lysine, ornithine, and tyrosine). All strains exhibited protease, lipase, and acid production, with decreased activity observed with increasing NaCl concentrations. This study confirmed the necessity of antibiotic resistance screening of Enterococcus species for food production, with the identification of vancomycin-resistant strains from Meju.
P098 A clinical study on herpes zoster during the last 5-year-period (2011-2015)
( Jeong Won Jo ),( Hae Bong Jeong ),( Yun Sun Moon ),( Do Seon Jeong ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.2
<div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div> Background: Herpes zoster is a common dermatologic disease. But there has not been any report on the clinical characteristics of herpes zoster in the Province of Gyeongsangnam-do. Objectives: The purpose of this study was the elucidation of the clinical characteristics of herpes zoster in the Province of Gyeongsangnam-do. Methods: The study was conducted between 2011 and 2015 at our hospital outpatients. 901 patients with herpes zoster were evaluated in regard to age, sex, dermatomic distributions, associated diseases and complications. Results: Out of 901 cases, 396 were males and 505 were females. The maximum incidence was in the over 70 year-old group (26.4%). The most frequent involved dermatome was the trigeminal dermatome (28.7%). Associated diseases were observed in 679 patients (75.3%), which included hypertension (21.2%), malignancy (11.4%) and so on. Out of 901 patients, 443 (49.2%) developed complications. The most common complication was postherpetic neuralgia (27.1%). It is noteworthy that skin edema was accompanied from 43 patients (4.8%). Fourty patients showed edematous change on herpes zoster lesion. But other 3 patients showed facial edema in spite of involving herpes zoster in other area. Conclusion: Most of the results are similar to those previously reported, except for a higher incidence in trigeminal dermatome. The most interesting part of this study is herpes zoster can cause skin edema. We need to take further studies in future by others to explain causes in detail.