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Assemblage-based biomonitoring of freshwater ecosystem health via multimetric indices:A critical review and suggestions for improving their applicability

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Water Biology and Security 2022年第3期1卷 28-42页

作者： Robert L.Vadas Jr. Robert M.Hughes Yeon Jae Bae min jeong baek Orestes Carlos Bello Gonzáles Marcos Callisto Débora ReisdeCarvalho Kai Chen Maria T.Ferreira Pablo Fierro Jon S.Harding Dana M.Infante C.J.Kleynhans Diego R.Macedo Isabela Martins Norman Mercado Silva Nabor Moya Susan J.Nichols Paulo S.Pompeu Renata Ruaro Deborah R.O.Silva R.Jan Stevenson Bianca de Freitas Terra Christa Thirion Douglas Ticiani Lizhu Wang Chris O.Yoder 2909 Boulevard Rd SEOlympiaWA98501-3971USA Amnis Opes Institute 2895 SE GlennCorvallisOR97333USA Department of Fisheries Wildlife&Conservation SciencesOregon State UniversityCorvallisOR97331USA Division of Environmental Science&Ecological Engineering Korea University145 Anam-roSeongbuk-guSeoul02841South Korea National Institute of Biological Resources Ministry of Environment42 Hwangyeong-roSeo-guIncheon22689South Korea Centro de Investigacion en Biodiversidad y Conservacion Universidad Autonoma del Estado de Morelos1001Col.ChamilpaC.P62209CuernavacaMorelosMexico Departamento de Genética Ecologia e EvoluçaoInstituto de Ciências BiologicaUniversidade Federal de Minas GeraisAvenida Ant^onio Carlos 6627CEP31270-901Belo HorizonteMGBrazil Departamento de Ecologia e Conservaçao Universidade Federal de Lavras37200-900LavrasMGBrazil State Key Laboratory of Marine Resource Utiliization in South China Sea Hainan UniversityHaikou570228China Forest Research Centre&Associate Laboratory TERRA University of LisbonTapada da Ajuda1349-017LisbonPortugal Instituto de Ciencias Marinas y Limnologicas Universidad Austral de ChileValdiviaChile School of Biological Sciences University of CanterburyPrivate Bag 4800Christchurch8140New Zealand Department of Fisheries&Wildlife Michigan State University1405 South Harrison Road#318East LansingMI48823USA Department of Water Affairs and Forestry(retired) 8th Avenue 771Wonderboom South0084PretoriaSouth Africa Departamento de Geografia Instituto de GeociênciasUniversidade Federal de Minas GeraisAvenida Antônio Carlos 6627CEP31270-901Belo HorizonteMGBrazil Instituto Guaicuy 109 Rua BrasopolisBelo HorizonteMG31150-170Brazil Centro de Investigación en Biodiversidad y Conservación Universidad Autónoma del Estado de MorelosAvenida Universidad 1001Col.ChamilpaC.P.62209CuernavacaMorelosMexico Instituto Experimental de Biología Universidad San Francisco Xavier de ChuquisacaSucreBolivia Centre for Applied Water Science Un

Freshwater biota are more comprehensive and direct indicators of biological impacts,and more meaningful to the public than water quality or physical habitat *** biotic data and the multiple biological indicators developed from them offer a much richer array of data for assessing the impacts of pollution controls than a limited set of physical or chemical *** recent decades,assemblage-based assessments by ecologists,environmental scientists,and water quality agencies have been employed globally for determining the condition of,and threats to,freshwater ecosystems.A key step in this advance has been the development of multimetric indices(MMIs)or indices of biotic integrity(IBIs)based on quantitative assessments of algae,macrophyte,macroinvertebrate,fish or riparian bird *** Europe,where biological assemblages are mandated for assessing freshwater ecosystem health,many indices are ***,the proliferation of MMIs globally has not always occurred through the application of rigorous study designs and monitoring protocols,nor have they always effectively incorporated functional metrics,stressor assessments,and statistical ***,in this review,we discuss eleven major concerns with the development and application(including logistical limitations)of multimetric indicators based on freshwater biota to encourage more rigorous and widely applicable(transferable)MMI use and ***,our concerns focus on reference conditions;sampling effort,methods,and season;trophic guild definition;metric comprehensiveness,options,screening and scoring;and MMI *** could also benefit from increased attention to ecological mechanisms and metric development,to further improve our understanding of anthropogenic impacts as well as rehabilitation effects on freshwater ecosystems *** closer attention to study designs,ecological mechanisms and metric development should further improve our understa

关键词： IBI MMI Fish Macroinvertebrates Algae Streams Rivers Lakes Wetlands Biological monitoring

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Remarkably slow corrosion rate of high-purity Mg microalloyed with 0.05wt% Sc

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Journal of Magnesium and Alloys 2023年第3期11卷 991-997页

作者： Soo-min baek jeong-Ki Kim Du-Won min Sung Soo Park Department of Materials Science and Engineering Ulsan National Institute of Science and TechnologyUlsan 44919Republic of Korea

We report that the corrosion resistance of Mg is significantly improved by adding 0.05wt%*** rates evaluated from weight loss values after room-temperature immersion in 0.6 M NaCl solution for two weeks were 0.27 and 4.0 mm y^(-1)for the high-purity Mg samples with and without microalloyed 0.05wt%Sc,*** beneficial effect of Sc microalloying on the corrosion resistance of Mg is discussed in connection with Sc-induced microstructural modifications.

关键词： Magnesium Microalloying Intermetallic phase Microgalvanic corrosion

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Distribution and Movement Tendencies of Short-Tailed Viper Snakes (Gloydius saxatilis) by Altitude

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Asian Herpetological Research 2017年第1期18卷 39-47页

作者： min Seock DO Ki-baek NAM jeong-Chil YOO Department of Biology Kyung Hee University Seoul 130-701 Republic of Korea

The distribution pattern of reptiles in mountainous regions is generally related to altitude. The distribution of viperine species can be limited by elevation. Short-tailed viper snakes （Gloydius saxatilis） of South Korea are found mostly in high elevation mountainous areas, but few studies have evaluated how their distribution relates to elevation gradient. This study was conducted from 2012 to 2013 to investigate the altitudinal distribution of short-tailed viper snakes in mountainous areas and to discover their movement patterns in Cheon-ma Mountain County Park in South Korea. A translocation method utilizing radio- tracking technology was employed to confirm whether their distribution was influenced by altitude. The results showed that most short-tailed vipers were observed in middle and high altitude areas （from 400 m to 800 m）, but none were observed in low altitude areas （from 200 m to 400 m）. According to the results of the translocation and tracking experiments, the individuals of the translocated group showed a significantly broader home range than those of the control group. In addition, all individuals of the translocated group moved vertically, while most of the control group moved horizontally. Therefore, all translocated individuals tended to move back toward their original habitat, a high elevation area. Consequently, we concluded that the distribution of short-tailed viper snakes was limited by altitude.

关键词： altitudinal preference translocation radio-tracking Viperidae South Korea

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Investigation of prodromal features in metabolic syndrome based on transcriptome analysis

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Genes & Diseases 2023年第3期10卷 708-711页

作者： Sang-min Park Musun Park Hyo-jeong Ban Su-Jin baek Soo Yeon Kim Siwoo Lee Hee-jeong Jin Korean Medicine(KM)Data Division Korea Institute of Oriental MedicineDaejeon 34054Republic of Korea College of Pharmacy Chungnam National UniversityDaejeon 34134Republic of Korea

Metabolic syndrome(MetS)is a complex condition that significantly increases the risk of several diseases,including heart disease and *** with MetS show both pro-inflammatory and pro-thrombotic states;however,the state... 详细信息

关键词： diseases Metabolic Patients

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Metabolic relationships between marine red algae and algae‑associated bacteria

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Marine Life Science & Technology 2024年第2期6卷 298-314页

作者： Kyung Hyun Kim jeong min Kim Ju Hye baek Sang Eun jeong Hocheol Kim Hwan Su Yoon Che Ok Jeon Department of Biological Sciences and Biotechnology Hannam UniversityDaejon 34054Republic of Korea Department of Life Science Chung-Ang UniversitySeoul 06974Republic of Korea Department of Biological Sciences Sungkyunkwan UniversitySuwon 16419Republic of Korea

Mutualistic interactions between marine phototrophs and associated bacteria are an important strategy for their success-ful survival in the ocean,but little is known about their metabolic ***,bacterial communities in the algal sphere(AS)and bulk solution(BS)of nine marine red algal cultures were analyzed,and Roseibium and Phycisphaera were identified significantly more abundantly in AS than in *** metabolic features of Roseibium RMAR6-6(isolated and genome-sequenced),Phycisphaera MAG 12(obtained by metagenomic sequencing),and a marine red alga,Porphyridium purpureum CCMP1328(from GenBank),were analyzed ***6-6 has the genetic capability to fix nitrogen and produce B vitamins(B1,B2,B5,B6,B9,and B12),bacterioferritin,dimethylsulfoniopropionate(DMSP),and phenylacetate that may enhance algal growth,whereas MAG 12 may have a limited metabolic capability,not producing vitamins B9 and B12,DMSP,phenylacetate,and siderophores,but with the ability to produce bacitracin,possibly modulating algal *** CCMP1328 lacks the genetic capability to fix nitrogen and produce vitamin B12,DMSP,phenylacetate,and *** was shown that the nitrogen-fixing ability of RMAR6-6 promoted the growth of ***-pureum,and DMSP reduced the oxidative stress of *** metabolic interactions between strain RMAR6-6 and *** CCMP1328 were also investigated by the transcriptomic analyses of their monoculture and *** together,potential metabolic relationships between Roseibium and *** were *** study provides a bet-ter understanding of the metabolic relationships between marine algae and algae-associated bacteria for successful growth.

关键词： Metabolic relationship Marine red algae Symbiotic bacteria Roseibium Phycisphaera Porphyridium

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Genome-wide DNA methylation profiling reveals candidate biomarkers and probable molecular mechanism of metabolic syndrome

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Genes & Diseases 2022年第4期9卷 833-836页

作者： Su-Jin baek Hyo-jeong Ban Sang-min Park Soo Yeon Kim Siwoo Lee Hee-jeong Jin KM Data Division Korea Institute of Oriental Medicine1672 Yuseong-daeroYuseong-guDaejeon 34054Republic of Korea

Although aberrant DNA methylation changes are significantly associated with the pathogenesis of many diseases,little is known about the molecular mechanisms underlying interactions between DNA methylation and gene expression in metabolic syndrome(MetS).The aim of this study was to identify biomarkers and molecular mechanisms regulated by DNA methylation in *** profiled genome-wide DNA methylation using the Infinium MethylationEPIC BeadChIP and characterized the transcriptome by RNA sequencing in our study population comprised of subjects with MetS(n=11)and controls(n=9).

关键词： diseases pathogenesis EPIC

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Virtual Mold Technique in Thermal Stress Analysis during Casting Process

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Journal of Materials Science & Technology 2008年第3期24卷 359-363页

作者： Si-Young Kwak Jae-Wook baek jeong-Ho Nam jeong-Kil Choi E-Design Center Korea Institute of Industrial Technology Department of Virtual Engineering Korea University of Science & Technology

It is important to analyse the casting product and the mold at the same time considering thermal contraction of the casting and thermal expansion of the mold. The analysis considering contact of the casting and the mold induces the precise prediction of stress distribution and the defect such as hot tearing. But it is difficult to generate FEM mesh for the interface of the casting and the mold. Moreover the mesh for the mold domain spends lots of computational time and memory for the analysis due to a number of meshes. Consequently we proposed the virtual mold technique which only uses mesh of the casting part for thermal stress analysis in casting process. The spring bar element in virtual mold technique is used to consider the contact of the casting and the mold. In general, a volume of the mold is much bigger than that of casting part, so the proposed technique decreases the number of mesh and saves the computational memory and time greatly. In this study, the proposed technique was verified by the comparison with the traditional contact technique on a specimen. And the proposed technique gave satisfactory results.

关键词： Casting process Thermal stress analysis Virtual mold

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A Solvent-Free Covalent Organic Framework Single-Ion Conductor Based on Ion-Dipole Interaction for All-Solid-State Lithium Organic Batteries

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Nano-Micro Letters 2024年第12期16卷 189-200页

作者： Zhongping Li Kyeong-Seok Oh jeong-min Seo Wenliang Qin Soohyoung Lee Lipeng Zhai Changqing Li Jong-Beom baek Sang-Young Lee Department of Chemical and Biomolecular Engineering Yonsei University50 Yonsei-RoSeodaemun-GuSeoul 03722Republic of Korea School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology(UNIST)50 UNIST-GilEonyang-EupUlju-GunUlsan 44919Republic of Korea Henan Key Laboratory of Functional Salt Materials Center for Advanced Materials ResearchZhongyuan University of TechnologyZhengzhou 450007People’s Republic of China Department of Battery Conflation Engineering Yonsei University50Yonsei-RoSeodaemun-GuSeoul 03772Republic of Korea Department of Battery Engineering Yonsei University50Yonsei-RoSeodaemun-GuSeoul 03772Republic of Korea

Single-ion conductors based on covalent organic frameworks(COFs)have garnered attention as a potential alternative to currently prevalent inorganic ion conductors owing to their structural uniqueness and chemical ***,the sluggish Li+conduction has hindered their practical ***,we present a class of solvent-free COF single-ion conductors(Li-COF@P)based on weak ion-dipole interaction as opposed to traditional strong ion-ion *** ion(Li+from the COF)-dipole(oxygen from poly(ethylene glycol)diacrylate embedded in the COF pores)interaction in the Li-COF@P promotes ion dissociation and Li+migration via directional ionic *** by this single-ion transport behavior,the Li-COF@P enables reversible Li plating/stripping on Li-metal electrodes and stable cycling performance(88.3%after 2000 cycles)in organic batteries(Li metal anode||5,5’-dimethyl-2,2’-bis-p-benzoquinone(Me2BBQ)cathode)under ambient operating conditions,highlighting the electrochemical viability of the Li-COF@P for all-solid-state organic batteries.

关键词： Solid organic single-ion conductors Solvent-free covalent organic frameworks All-solid-state Li organic batteries Ion-dipole interaction Pore functionalization

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Improvement of uniformity in cultivation environment and crop growth rate by hybrid control of air flow devices

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Journal of Central South University 2015年第12期22卷 4702-4708页

作者： baek min-Seon KWON Sook-Youn LIM Jae-Hyun Department of Computer Science and Engineering Kongju National University Green Energy Technology Research Center Kongju National University

A complete control type plant factory has high efficiency in terms of cultivation area by constructing vertical multiple layered cultivation ***,it has a problem of irregular crop growth due to temperature deviation at upper and lower beds and increases in energy consumption by a prolonged cultivation *** this work,air flow rate inside a facility was improved by a hybrid control of air flow devices like air conditioning and air circulation fan with an established wireless sensor network to minimize temperature deviations between upper and lower beds and to promote crop *** performance of proposed system was verified with an experimental environment or Case A wherein air conditioning device was operated without a control algorithm and Case B wherein air conditioning and circulation fans were alternatively operated based on the hybrid control *** planting leafy vegetables under each experimental condition,crops were cultivated for 21 *** a result,Case B wherein AC(air conditioning) and ACF(air-circulation fan) were alternatively operated based on the hybrid control algorithm showed that fresh mass,number of leaves,and leaf length for the crops grown were increased by 40.6%,41.1%,and 11.1%,respectively,compared to Case A.

关键词： air flow devices hybrid control cultivation environment uniformity growth rate

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Regular moderate aerobic exercise improves high-fat diet-induced nonalcoholic fatty liver disease via monoacylglycerol O-acyltransferase 1 pathway suppression

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Journal of Sport and Health Science 2020年第5期9卷 472-478页

作者： Kyung-Wan baek jeong-An Gim Jung-Jun Park Division of Sport Science Pusan National UniversityBusan 46241Korea Department of Biological Sciences College of Natural SciencesPusan National UniversityBusan 46241Korea

Purpose:Monoacylglycerol O-acyltransferase 1(MGAT1)is reported to play a key role in the development of diet-induced nonalcoholic fatty liver disease(NAFLD).Thus,this study investigated the effect of exercise on suppression of the MGAT1 pathway in NAFLD tissue of high-fat diet(HFD)-induced obese ***:Male Sprague-Dawley rats were fed an HFD containing 45%fat for 6 *** confirmation that NAFLD had been induced in the obese animals,they were divided into HFD-fed groups provided with exercise(HFD+EXE)or without exercise(HFD)and a group given dietary adjustment(DA)only,for a further 6 weeks of intervention *** 6-week regular moderate aerobic exercise consisted of an accommodation phase with increasing *** accumulation in the liver tissue was determined by Oil Red O *** MGAT1 and liver lipogenic gene mRNA levels were measured by qPCR,and their protein levels by western blot ***:Oil Red O staining showed that NAFLD was successfully induced by *** gene expression of MGAT1 was significantly lower in HFD+EXE than ***,there was no significant difference between HFD+EXE and *** protein expression of MGAT1 was significantly lower in HFD+EXE than both HFD and *** RNA and protein expression of other lipogenic genes were not different among *** data indicate that exercise suppresses MGAT1 pathway regardless of HFD feeding;in part,this effect could be greater than ***:Our data suggest that exercise can improve NAFLD,which is probably due to suppression of MGAT1 pathway.

关键词： Exercise High-fat diet Monoacylglycerol O-acyltransferase 1 Nonalcoholic fatty liver disease Obesity

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