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Dae-Weon Lee,Il Sung Moon,강재순,Hyun Jung Choe,최재영,제연호,이시혁,Hye Rim Han,Kook-Jin Lim6,Young Ho Koh 한국응용곤충학회 2007 Journal of Asia-Pacific Entomology Vol.10 No.2
Bursaphelenchus xylophilus has been recognized as a causal pathogen of pine wilt disease (PWD). In order to identify relevant molecular biomarkers, we selected a variable region of endo-β-1,4-glucanase (β14-gcn) which was cloned from the cDNA of B. xylophilus and B. mucronatus. We then identified three novel β14-gcn isoforms: Bm-β14-gcn and Bm-β14-gcni from B. mucronatus, and Bx-β14-gcn from B. xylophilus. Bm-β14-gcn and Bx-β14-gcn were found to be identical, whereas Bm-β14-gcni was unique to B. mucronatus. These isoforms are Bursaphelenchus-specific and may be employed as molecular markers for the diagnosis of PWD. Our phylogenetic analysis showed that these β14-gcns from Bursaphelenchus species were associated most closely with fungal β14-gcns.
Clinical outcome of proton therapy for patients with chordomas
Sang Hee Youn,Kwan Ho Cho,Joo-Young Kim,Boram Ha,Young Kyung Lim,Jong Hwi Jeong,Sang Hyun Lee,Heon Yoo,Ho-Shin Gwak,Sang Hoon Shin,Eun Kyung Hong,Han Kyu Kim,Je Beom Hong 대한방사선종양학회 2018 Radiation Oncology Journal Vol.36 No.3
Purpose: To investigate the clinical outcome of proton therapy (PT) in patients with chordoma. Materials and Methods: Fifty-eight patients with chordoma treated with PT between June 2007 and December 2015 at the National Cancer Center, Korea, were retrospectively analyzed. The median total dose was 69.6 cobalt gray equivalent (CGE; range, 64.8 to 79.2 CGE). Local progression-free survival (LPFS), distant metastasis-free survival (DMFS), overall survival (OS), and diseasespecific survival (DSS) rates were calculated by the Kaplan - Meier method. Results: With the median follow-up of 42.8 months (range, 4 to 174 months), the 5-year LPFS, DMFS, OS, and DSS rates were 87.9%, 86.7%, 88.3%, and 92.9%, respectively. The tumor location was associated with the patterns of failure: the LPFS rates were lower for cervical tumors (57.1%) than for non-cervical tumors (93.1%) (p = 0.02), and the DMFS rates were lower for sacral tumors (53.5%) than for non-sacral tumors (100%) (p = 0.001). The total dose was associated with both the LPFS rate and DMFS rate. The initial tumor size was associated with the DMFS rate, but was not associated with the LPFS rate. Three patients had grade 3 late toxicity with none ≥grade 4. Conclusion: PT is an effective and safe treatment in patients with chordomas. The tumor location was associated with the patterns of failure: local failure was common in cervical tumors, and distant failure was common in sacral tumors. Further refinement of PT, such as the utilization of intensity modulated PT for cervical tumors, is warranted to improve the outcome.
In vitro and In vivo Evaluation of Novel Gel Formulations of Testosterone for Transdermal Delivery
Sung Koun Heo,Young Seok Cho,Sang Dae Han,Jin Kang Chang,Eun Ju Yoon,Dae Woong Ko,Chang Baeg Lim,Suk Jae Chung,Chang Koo Shim,Dae Duk Kim 韓國藥劑學會 2005 Journal of Pharmaceutical Investigation Vol.35 No.5
Development of an Efficient Microbial Process Using Non-edible Biomass by Engineering Vibrio sp. dhg
Sung Hwa WOO,Hyun Gyu LIM,Dong Hun KWAK,Yong Hee HAN,Sungwoo PARK,Sang Woo SEO,Gyoo Yeol JUNG 한국생물공학회 2021 한국생물공학회 학술대회 Vol.2021 No.10
Most microorganisms including industrial host strains were not able to efficiently utilize non-preferred carbon sources contained in non-edible biomass, such as alginate, xylose, and arabinose. Therefore, choosing an appropriate host strain would determine the efficiency of the entire bioprocess. In this regard, due to a broad spectrum of sugar utilization and genetic tractability of Vibrio sp. dhg, it was studied as a platform strain for the processes using non-edible biomass as a feedstock; brown-macroalgae and lignocellulose in this study. In order to efficiently utilize brown macroalgae as a feedstock, Vibrio sp. dhg capable of catabolizing alginate was isolated. After genome sequencing, genetic engineering tools were established. The production strains for ethanol, 2,3-butanediol, and lycopene demonstrated unprecedent productivities from brown macroalgae-derived carbon sources (alginate and mannitol). In order to efficiently utilize lignocellulose as a feedstock, Vibrio sp. dhg was rationally and evolutionary engineered for improved xylose catabolism and removal of carbon catabolite repression (CCR). Lactate-producing strain was constructed based on previously engineered strain and showed high productivity from lignocellulose-derived sugars (glucose, arabinose, and xylose).
Analysis on operation characteristics and power burdens of the double quench trigger type SFCLs
Lim, Seung-Taek,Lim, Sung-Hun,Han, Tae-Hee The Korea Institute of Applied Superconductivity a 2017 한국초전도저온공학회논문지 Vol.19 No.2
To protect the power systems from fault current, the rated protective equipment should be installed. However growth of power system scale and concentration of loads caused the large fault current in power transmission system and distribution system. The capacities of installed protective equipment have been exceeded the due to increase of fault current. This increase is not temporary phenomenon but will be steadily as long as the industry develops. The power system operator need a counter-measurement for safety, so superconducting fault current limiter (SFCL) has been received attention as effective solutions to reduce the fault current. For the above reasons various type SFCLs have been studied recently. In this paper, operation characteristics and power burden of trigger type SFCL is studied. The trigger type SFCL has been used for real system research in many countries. Another trigger type SFCL (double quench trigger type SFCL) is also studied. For this paper, short circuit test is performed.
Soil carbon changes in paddy fields amended with fly ash
Lim, Sang-Sun,Choi, Woo-Jung,Chang, Scott X.,Arshad, Muhammad A.,Yoon, Kwang-Sik,Kim, Han-Yong Elsevier 2017 Agriculture, ecosystems & environment Vol.245 No.-
<P>Increasing soil carbon (C) sequestration in the agricultural sector is an important strategy for mitigating climate change; however, conventional best management practices such as crop residue retention and organic fertilizer application do not always increase soil C content due to C loss by cultivation. In this context, application of fine textured minerals such as coal fly ash (FA) may be effective in increasing soil C sequestration by enhancing plant biomass production and protecting soil C from being lost. We conducted a three-year field experiment in a paddy field with three levels of FA application (0, 5, and 10% by soil weight) in combination with the following four nitrogen (N) treatments: no input, and applications of urea, pig manure compost (compost) and hairy vetch (Vida Villosa Roth.) green manure (vetch). Across the three seasons, rice grain yield was in the order of vetch = urea > compost > no input, reflecting the effect of N availability in each treatment. Application of FA (particularly at 10%) reduced the total rice plant biomass by hampering tillering. However, FA application did not reduce grain yield due to increased individual grain weight. In spite of decreased rice residue incorporation into the soil, FA application increased the soil C content at the end of the third season regardless of the N source, driven by reduced soil C loss. We conclude that the application of mineral soil amendments such as FA is effective in enhancing soil C sequestration without decreasing rice yield in paddy fields.</P>
Synthesis of Indenes that are Derived from Aldimines with Enones Under Rhodium(III) Catalysis
Han, Sang Hoon,Kim, Saegun,Mishra, Neeraj Kumar,Oh, Hyunjung,Choi, Myung Hoon,Choi, Dong Seok,Lim, Hyeon Ju,Shin, Dong Yeop,Kim, In Su John Wiley & Sons Ltd 2017 ASIAN JOURNAL OF ORGANIC CHEMISTRY Vol.6 No.12
<P>The rhodium(III)-catalyzed C-H alkylation and intramolecular cyclization of aldimines with enones are described. This transformation provides direct access to the formation of C2-carbonyl-substituted indene derivatives with excellent site-selectivity and functional group compatibility.</P>