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Methane Emission from Rice Fields:Necessity for Molecular Approach for Mitigation

Rice science 2024年第2期31卷 159-178页

作者： Sujeevan RAJENDRAN Hyeonseo PARK Jiyoung KIM soon Ju PARK Dongjin SHIN Jong-Hee LEE Young Hun SONG nam-Chon PAEK Chul Min KIM Department of Horticulture Industry Wonkwang UniversityIksan 54538Korea Plant Molecular Biology and Biotechnology Research Center Gyeongsang National UniversityJinju 52828Korea Department of Southern Area Crop Science National Institute of Crop ScienceMiryang 50424Korea Department of Agricultural Biotechnology Seoul National UniversitySeoul 08826Korea Department of Plant Science Plant Genomics and Breeding InstituteResearch Institute of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Korea

Anthropogenic methane emissions are a leading cause of the increase in global averagetemperatures,often referred to as global *** soils play a significant role in methaneproduction,where the anaerobic conditions promote the production of methane by *** fields contribute a considerable portion of agricultural methane emissions,as riceplants provide both factors that enhance and limit methane *** plants harbor both methaneproducingand methane-oxidizing *** from rice roots provide source for methaneproduction,while oxygen delivered from the root aerenchyma enhances methane *** haveshown that the diversity of these microorganisms depends on rice cultivars with some genes characterizedas harboring specific groups of microorganisms related to methane ***,there is still aneed for research to determine the balance between methane production and oxidation,as rice plantspossess the ability to regulate net methane *** agronomical practices,such as fertilizerand water management,have been employed to mitigate methane ***,studiescorrelating agronomic and chemical management of methane with productivity are ***,evidences for breeding low-methane-emitting rice varieties are scattered largely due to the absence ofcoordinated breeding *** has indicated that phenotypic characteristics,such as rootbiomass,shoot architecture,and aerenchyma,are highly correlated with methane *** reviewdiscusses available studies that involve the correlation between plant characteristics and *** emphasizes the necessity and importance of breeding low-methane-emitting rice varieties inaddition to existing agronomic,biological,and chemical *** review also delves into the idealphenotypic and physiological characteristics of low-methane-emitting rice and potential breeding techniques,drawing from studies conducted

关键词： methane emission rice breeding aerenchyma greenhouse gas radial oxygen loss

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Structural insights on anti-biofilm mechanism of heated slightly acidic electrolyzed water technology against multi-resistant Staphylococcus aureus biofilm on food contact surface

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Food Science and Human Wellness 2024年第3期13卷 1556-1566页

作者： Pianpian Yan Ramachandran Chelliah Kyoung Hee Jo Xiuqin Chen Akanksha Tyagi Hyeon Yeong Jo Fazle Elahi nam Chan woo Min Seung wook Deog Hwan Oh Department of Food Science and Biotechnology College of Agriculture and Life SciencesKangwon National UniversityChuncheon 24341South Korea Kangwon Institute ofInclusive Technology(KIIT) Kangwon National UniversityChuncheon 24341South Korea Saveetha School of Engineering (SIMATS)UniversitySriperumbudur 600124India Seoulin Bioscience Company Seongnam-si 13488South Korea

Slightly acidic electrolyzed water(SAEW)has proven to be an efficient and novel sanitizer in food and agriculture *** study assessed the efficacy of SAEW(30 mg/L)at 40℃on the inactivation of foodbome pathogens and detachment of multi-resistant Staphylococcus aureus(MRSA)*** underlying mechanism of MRS A biofilm under heated SAEW at 40℃treatment on metabolic profiles was *** results showed that the heated SAEW at 40℃significantly effectively against foodbome pathogens of 1.96-7.56(lg(CFU/g))reduction in pork,chicken,spinach,and *** heated SAEW at 40℃treatment significantly reduced MRS A biofilm cells by 2.41(lg(CFU/cm^(2))).The synergistic effect of SAEW treatment showed intense anti-biofilm activity in decreasing cell density and impairing biofilm cell *** metabolic response of MRSA biofilms,treated by SAEW at 40℃,revealed the alterations of intracellular metabolites,including amino acids,organic acid,fatty acid,and ***,signaling pathways involved in amino acid metabolism,energy metabolism,nucleotide synthesis,carbohydrate metabolites,and lipid biosynthesis were functionally disrupted by the SAEW at 40℃*** per our knowledge,this is the first research to uncover the potential mechanism of heated SAEW treatment against MRSA biofilm on food contact surface.

关键词： Multi-resistant Staphylococcus aureus Metabolic profile SAEW Biofilm Hurdle technology Electrode material

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Transparent high-performance piezoceramics through pressureless sintering

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Journal of Advanced Ceramics 2024年第5期13卷 561-567页

作者： Hye-Lim Yu woo-Seok Kang Ju-Hyeon Lee Temesgen Tadeyos Zate Young-Jin Lee Bo-Kun Koo Dong-Jin Shin Min-Soo Kim soon-Jong Jeong Young Ghyu Ahn wook Jo Department of Material Science and Engineering Ulsan National Institute of Science and TechnologyUlsan 44919Republic of Korea Energy Conversion Research Center Korea Electrotechnology Research InstituteChangwon 51543Republic of Korea MLCC Development Team Component Biz.UnitSamsung Electro-Mechanics Co.Ltd.Suwon 16674Republic of Korea

Piezoelectricity offers an electromechanical coupling that is widely utilized in transducer *** has been a consistent demand for transparent piezoelectric materials for optoelectrical ***,despite the inherent tradeoff between the transparency and the piezoelectricity,numerous strategies have been explored to develop the transparent piezoelectric ***,the most transparent piezoelectric materials developed to date is either a single crystal or materials that achieve transparency via hot-press sintering,limiting its industrial ***,we introduce a novel piezoelectric material that ensures transparency through co-doping and pressureless sintering of polycrystalline *** this study,we employed a compositional optimization approach to enhance the synergistic effect between the transparency and the piezoelectric properties of 0.71Pb(Mg_(1/3)Nb_(2/3))O_(3)–0.29PbTiO_(3)(PMN–0.29PT)*** utilizing the tape casting process for mass production and large-area manufacturing,our Pb_(0.913)La_(0.0145)Sm_(0.0145)(Mg_(1/3)Nb_(2/3))_(0.71)Ti_(0.29)O_(3)(TP2.9)ceramics exhibited over 60%transparency and large piezoelectric coefficient(d33)of 1104 pC/*** material holds considerable promise for a wide range of industrial applications in both the optical and electronic domains.

关键词： piezoelectric ceramics transparency pressureless sintering co-doping tape casting

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Hepatic angiosarcoma manifested as recurrent hemoperitoneum

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World Journal of Gastroenterology 2008年第18期14卷 2935-2938页

作者： Seung-woo Lee Chun-Young Song Young-Hwa Gi Sang-Beom Kang Yon-Soo Kim soon-woo nam Dong-Soo Lee Jong-Ok Kim Division of Gasroenterology and Hepatology Departments of Internal Medicine The Catholic University of Korea College of Medicine Seoul 301-723 Korea Department of pathology The Catholic University of Korea College of Medicine Seoul 301-723 Korea

Angiosarcoma is a rare tumor that account for less than 1% of all sarcomas. Although hepatic angiosarcoma usually presents with unspecific symptoms, it rapidly progresses and has a high mortality. We report a rare cas... 详细信息

关键词：血管肉瘤腹腔积血原发性肝癌病理机制

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Short-term overlap lamivudine treatment with adefovir dipivoxil in patients with lamivudine-resistant chronic hepatitis B

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World Journal of Gastroenterology 2008年第11期14卷 1781-1784页

作者： soon woo nam Si Hyun Bae Seung woo Lee Yeon Soo Kim Sang Bum Kang Jong Young Choi Se Hyun Cho Seung Kew Yoon Joon-Yeol Han Jin Mo Yang Young Suk Lee Division of Gastroenterology and Hepatology Department ofInternal medicineMedical College of the Catholic University ofKoreaDaejeon St.Mary's Hospital#62 Daeheung-dongChung-guDaejeonRepublic of Korea

AIM:To evaluate the efficacy of short-term overlap lamivudine therapy with adefovir in patients with lamivudine-resistant and nave chronic hepatitis B,we compared patients receiving overlap therapy with those receiving adefovir alone. METHODS:Eighty patients who had received lamivudine treatment for various periods and had a lamivudine- resistant liver function abnormality were *** of these patients received adefovir treatment combined with lamivudine treatment for≥2 mo,while the other 40 received adefovir *** assessed the levels of hepatitis B virus(HBV)DNA at 0,12 and 48 wk and serum alanine aminotransferase(ALT)levels after 0,12, 24 and 48 wk of adefovir treatment in each group. RESULTS:We found serum ALT became normalized in 72(87.5%)of the 80 patients,and HBV DNA decreased by≥2 log10 copies/mL in 60(75%)of the 80 patients at the end of a 48-wk *** DNA levels were not significantly different between the *** improvements in serum ALT were also not significantly different between the two groups. CONCLUSION:These findings suggest short-term overlap lamivudine treatment results in no better virological and biological outcomes than non-overlap adefovir monotherapy.

关键词：慢性乙型肝炎乙肝病毒短期治疗抵抗力

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A case of ascending colon variceal bleeding treated with venous coil embolization

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World Journal of Gastroenterology 2013年第2期19卷 311-315页

作者： Bong Suk Ko woo Tae Kim Su Sun Chang Eun Hye Kim Seung woo Lee Won Seok Park Yeon Soo Kim soon woo nam Dong Soo Lee Ji Chang Kim Sang Bum Kang Department of Internal Medicine College of MedicineThe Catholic University of KoreaDaejeon St.Mary's HospitalDaejeon 301-723South Korea Department of Radiology College of MedicineThe Catholic University of KoreaDaejeon St.Mary's HospitalDaejeon 301-723South Korea

A 38-year-old female with a history of alcoholic liver cirrhosis visited our hospital with a massive *** esophagogastroduodenoscopy did not demonstrate any bleeding source,and a colonoscopy showed a massive hemorrhage in the ascending colon but without an obvious *** source of the bleeding could not be found with a mesenteric artery *** performed an enhanced abdominal computed tomography,which revealed a distal ascending colonic varix,and assumed that the varix was the source of the *** performed a venous coil embolization and histoacryl injection to obliterate the colon *** intervention appeared to be successful because the vital signs and hemoglobin laboratory data remained stable and because the hematochezia was no longer *** report here on a rare case of colonic variceal bleeding that was treated with venous coil embolization.

关键词： Colon ascending Varicose veins Liver cirrhosis Therapeutic embolization

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Outcome of transarterial chemoembolization-based multi-modal treatment in patients with unresectable hepatocellular carcinoma

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World Journal of Gastroenterology 2015年第8期21卷 2395-2404页

作者： Do Seon Song soon woo nam Si Hyun Bae Jin Dong Kim Jeong Won Jang Myeong Jun Song Sung Won Lee Hee Yeon Kim Young Joon Lee Ho Jong Chun Young Kyoung You Jong Young Choi Seung Kew Yoon Department of Internal Medicine College of Medicine The Catholic University of Korea Department of Internal Medicine Cheju Halla General Hospital Department of Radiology College of Medicine The Catholic University of Korea Department of Surgery College of Medicine The Catholic University of Korea

AIM:To investigate the efficacy and safety of transarterial chemoembolization(TACE)-based multimodal treatment in patients with large hepatocellular carcinoma(HCC).METHODS:A total of 146 consecutive patients were included in the analysis,and their medical records and radiological data were reviewed ***:In total,119 patients received TACE-based multi-modal treatments,and the remaining 27 received conservative *** survival(P<0.001)and objective tumor response(P=0.003)were significantly better in the treatment group than in the conservative *** subgroup analysis,survival benefits were observed not only in the multi-modal treatment group compared with the TACE-only group(P=0.002)but also in the surgical treatment group compared with the loco-regional treatment-only group(P<0.001).Multivariate analysis identified tumor stage(P<0.001)and tumor type(P=0.009)as two independent pre-treatment factors for *** adjusting for significant pre-treatment prognostic factors,objective response(P<0.001),surgical treatment(P=0.009),and multi-modal treatment(P=0.002)were identified as independent post-treatment prognostic ***:TACE-based multi-modal treatments were safe and more beneficial than conservative *** surgery after successful downstaging resultedin long-term survival in patients with large,unresectable HCC.

关键词： Hepatocellular carcinoma Multimodal treatment Tran

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Estimation of marine winds in and around typhoons using multi-platform satellite observations: Application to Typhoon Soulik (2018)

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Frontiers of Earth Science 2022年第1期16卷 175-189页

作者： Seung-woo LEE Sung Hyun nam Duk-Jin KIM School of Earth and Environmental Sciences College of Natural SciencesSeoul National UniversitySeoul 08826Republic of Korea Research Institution of Oceanography College of Natural SciencesSeoul National UniversitySeoul 08826Republic of Korea

Estimating horizontal winds in and around typhoons is important for improved monitoring and prediction of typhoons and mitigating their ***,we present a new algorithm for estimating typhoon winds using multiple satellite observations and its application to Typhoon Soulik(2018).Four kinds of satellite remote sensing data,along with their relationship to typhoon intensity,derived statistically from hundreds of historical typhoon cases,were merged into the final product of typhoon wind(MT wind):(1)geostationarysatellite-based infrared images(IR wind),(2)passive microwave sounder(MW wind),(3)feature-tracked atmospheric motion vectors,and (4)scatterometer-based sea surface winds(SSWs).The algorithm was applied to two cases(A and B)of Typhoon Soulik and validated against SSWs independently retrieved from active microwave synthetic aperture radar(SAR)and microwave radiometer(AMSR2)images,and vertical profiles of wind speed derived from reanalyzed data and dropsonde *** Case A(open ocean),the algorithm estimated the realistic maximum wind,radius of maximum wind,and radius of 15 m/s,which could not be estimated using the reanalysis data,demonstrating reasonable and practical ***,for Case B(when the typhoon rapidly weakened just before making landfall in the Korean Peninsula),the algorithm significantly overestimated the parameters,primarily due to the overestimation of typhoon *** study highlights that realistic typhoon winds can be monitored continuously in real-time using multiple satellite observations,particularly when typhoon intensity is reasonably well predicted,providing timely analysis results and products of operational importance.

关键词： sea surface wind multi-platform satellites Typhoon Soulik(2018)

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Covalent organic frameworks:Design and applications in electrochemical energy storage devices

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InfoMat 2022年第6期4卷 1-35页

作者： Shikai Jin Omar Allam Seung soon Jang Seung woo Lee George W.woodruff School of Mechanical Engineering Georgia Institute of TechnologyAtlantaGeorgiaUSA Computational NanoBio Technology Laboratory School of Material Science and EngineeringGeorgia Institute of TechnologyAtlantaGeorgiaUSA

As an emerging class of crystalline organic material,covalent organic frameworks(COFs)possess uniform porosity,versatile functionality,and precise control over designated *** from the favorable charge and mass transport pathways offered by the porous framework,COFs can also exhibit designed reversible redox *** the past few years,their potential has attracted a great deal of attention for charge storage and transport applications in various electrochemical energy storage devices,and numerous design strategies have been proposed to enhance the corresponding electrochemical *** review summarizes the working principle and synthesis methods of COFs and discusses significant findings for supercapacitors and various rechargeable battery systems,emphasizing the representative design strategies and their underlying relationship with electrochemical *** addition,key advances achieved by computations are highlighted along with the challenges and prospects in this field.

关键词： covalent organic frameworks rechargeable batteries redox-active electrodes solid electrolyte supercapacitors

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Metasurface doublet-integrated bidirectional grating antenna enabling enhanced wavelength-tuned beam steering

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Photonics Research 2022年第1期10卷 248-255页

作者： woo-BIN LEE CHUL-soon IM CHANGYI ZHOU BISHAL BHANDARI DUK-YONG CHOI SANG-SHIN LEE Department of Electronic Engineering Kwangwoon UniversitySeoul 01897Republic of Korea Nano Device Application Center Kwangwoon UniversitySeoul 01897Republic of Korea Laser Physics Centre Research School of PhysicsAustralian National UniversityCanberraACT 2601Australia

We propose and demonstrate an optical phased-array-based bidirectional grating antenna(BDGA) in silicon nitride *** BDGA is integrated with a miniaturized all-dielectric metasurface doublet(MD) formed on a glass *** BDGA device,which takes advantage of alternately feeding light to its ports in opposite directions,is presumed to effectively provide a doubled wavelength-tuned steering efficiency compared to its unidirectional *** MD,which is based on vertically cascaded convex and concave metalenses comprising circular hydrogenated amorphous silicon nanopillars,is meticulously placed atop the BDGA chip to accept and deflect a beam emanating from the emission area,thereby boosting the beam-steering *** manufactured BDGA could achieve an enhanced beam-steering efficiency of 0.148 deg/nm as well as a stable spectral emission response in the wavelength range of 1530–1600 *** deploying a fabricated MD atop the silicon photonic BDGA chip,the steering efficiency was confirmed to be boosted by a factor of ~3.1,reaching 0.461 deg/nm,as intended.

关键词： beam thereby directions

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