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Lactate as a regulator of iron homeostasis

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Life Metabolism 2023年第5期2卷 8-11页

作者： Gregory J.anderson David M.Frazer Iron Metabolism Laboratory QIMR Berghofer Medical Research InstituteBrisbaneQueensland 4006Australia Molecular Nutrition Laboratory QIMR Berghofer Medical Research InstituteBrisbaneQueensland 4006Australia

The key metabolic intermediate lactate can increase expression of the liver-derived peptide hepcidin,the central regulator of body iron homeostasis.A new paper by Liu et *** that lactate achieves this by binding to and activating soluble adenylyl cyclase,thereby increasing cellular cyclic adenosine monophosphate(cAMP)and enhancing signaling through the bone morphogenetic protein(BMP)pathway to modulate hepcidin expression.

关键词： expression thereby homeostasis

A remote sensing approach to estimate the load bearing capacity of soil

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Information Processing in Agriculture 2024年第1期11卷 109-116页

作者： Italo Rômulo Mendes de Souza Edson Eyji Sano Renato Paiva de Lima anderson Rodrigo da Silva Statistics and Geoprocessing Laboratory Instituto Federal GoianoGeraldo Silva Nascimento RoadKm 2.575790-000 UrutaíGoiásBrazil Embrapa Cerrados BR-020 RoadKm 18Mailbox 0822373310-970 PlanaltinaDFBrazil Department of Soil Science ‘Luiz de Queiroz’College of AgricultureUniversity of São PauloAv.Pádua Dias235-AgronomiaPiracicabaSP 13418-900Brazil

Preconsolidation pressure(σp)of soil can be considered as an indicator of the Load Bearing Capacity(LBC),which is the tolerated surface pressure before compaction,often caused by the traffic of agricultural *** this pioneering study,a remote sensing approach was introduced to estimate LBC throughσp from soils of the“Rio Preto”Hydrographic Basin,Bahia State,Brazil,in a monthly time lapse from 2016 to ***,σp is measured by a laborious and time demanding laboratory analysis,making it unfeasible to map large *** innovative methodology of this work consists of combining active–passive satellite data on soil moisture and pedotransfer functions of clay content and water matric potential to obtain geo-located estimates ofσ*** were analysed under different classes of soil use,land cover and slope;95%confidence intervals were built for the time series of mean values of LBC for each *** overall seasonal variation in LBC estimates is similar in areas with annual crops,grasslands and natural vegetation,and flat areas are less affected by soil moisture variations over the year(between seasons).LBC decreased,in general,at about 0.5%a year in flat ***,these areas demand attention,since they occupy 86%of the Basin and are mostly subjected to agricultural soil management and surface pressure by heavy machinery.

关键词： Soil compaction SMAP Preconsolidation stress Brazilian Cerrado

Application of Multivariate Geostatistics in Environmental Epidemiology: Case Study from Houston, Texas

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Journal of Geoscience and Environment Protection 2016年第4期4卷 110-115页

作者： Faye anderson Independent Scholar Port Arthur TX USA

This study represents an example of investigating the associations between the joint exposure to ozone (O3) and particulate matter of sizes less than or equal to 2.5 micrometers in aerodynamic diameter (PM2.5) and cardiovascular disease (CVD) emergency room (ER) visits and chronic obstructive pulmonary disease (COPD) ER visits using multivariate geostatistics in Houston, Texas, from 2004 to 2009. Analyses showed lack of strong pair-wise association among the predictors of O3, PM2.5, wind speed, relative humidity, and temperature. Whereas CVD and COPD ER visits exhibited a strong positive correlation. Both outcomes drastically increased from 2006 possibly due to immigration from neighboring locations. Parametric testing showed that the data differed significantly between the years. Multivariate multiple regression results on the 2009 data showed that PM2.5, relative humidity, and temperature were significant to both CVD and COPD ER visits. Codispersion coefficients were constant which justified the assumption of intrinsic correlation. That is, our predictors had strong influence on the spatial variability of CVD and COPD ER visits. This multivariate geostatistics approach predicted an increase of 34% in CVD ER visits and 24% increase in COPD ER visits, which calls for more attention from policy makers. The use of multivariate geostatistics analyses enabled us to successfully detect the effects of risk factors on both outcomes.

关键词： Multivariate Geostatistics COPD CVD Harris Houston PM2.5 Ozone

页岩油气富集的主控因素及误辩:以美国、阿根廷和中国典型页岩为例

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地球科学（中国地质大学学报） 2017年第7期42卷 1083-1091页

作者：蒋恕唐相路 Steve Osborne Thomas anderson 犹他大学能源与地球科学学院美国盐湖城84108 中国地质大学资源学院湖北武汉430074 中国石油大学非常规天然气研究院北京102249 中国石油大学非常规油气与新能源研究院山东青岛266580

页岩气富集不均匀,无论对于不同页岩油气藏还是同一页岩油气藏不同地方,产量都是有高有低.有必要系统分析和对比全球不同页岩油气的地质、石油系统与油气富集的关系,总结页岩油气富集的主控因素,从而采取合理的勘探和开发技术.以美国、... 详细信息

页岩气富集不均匀,无论对于不同页岩油气藏还是同一页岩油气藏不同地方,产量都是有高有低.有必要系统分析和对比全球不同页岩油气的地质、石油系统与油气富集的关系,总结页岩油气富集的主控因素,从而采取合理的勘探和开发技术.以美国、阿根廷和中国典型页岩为例,基于野外和岩心观察、样品属性测试分析、储层表征、石油系统分析及油气测试,探究了页岩油气富集的主控因素及存在的认识误区.结果表明,富含有机质和脆性矿物的页岩主要分布于远离造山带物源的非深水的沉积和构造背景,富含石英和高伽马页岩并非判断优质储层的矿物和岩石物理标准,优质碳酸盐页岩应以富含碳酸盐和低伽马值为标准."页岩油气藏"实际是细粒富含有机质的自生自储或与富含有机质烃源岩相邻的贫有机质细粒沉积储层.天然裂缝对页岩油气富集具有有利和不利的双重作用.因此,页岩油气富集同时受到沉积和构造环境、岩相及矿物组成、天然裂缝的耦合影响,且对不同沉积盆地、不同属性页岩的影响差异明显.

关键词：页岩油气富集沉积背景构造岩相矿物组成天然裂缝石油地质

Assessing the Association between Heart Attack, High Blood Pressure, and Heart Disease Mortality Rates and Particulate Matter and Socioeconomic Status Using Multivariate Geostatistical Model

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Occupational Diseases and Environmental Medicine 2016年第1期4卷 8-15页

作者： Faye anderson Center for Advances in Water and Air Quality Lamar University Beaumont TX USA

This study addresses the public concerns of potential adverse health effects from ambient fine particulate matter as well as socioeconomic factors. Heart attack, high blood pressure, and heart disease mortality rates were investigated against fine particulate matter and socioeconomic status, for all counties in the United States in 2013. Multivariate multiple regressions as well as multivariate geostatistical predictions show that these are significant factors towards assessing the causal inferences between exposure to air pollution and socioeconomic status and the three mortality rates.

关键词： Heart Attack High Blood Pressure Heart Disease Mortality United States Multivariate Geostatistics Coregionalization Multivariate Multiple Linear

Development of environmental niche models for use in underwater vehicle navigation

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IET Cyber-Systems and Robotics 2020年第2期2卷 67-77页

作者： Michael Fitzpatrick Gregory MReis Jacob anderson Leonardo Bobadilla Wesam Al Sabban Ryan NSmith Physics&Engineering Fort Lewis CollegeDurangoCOUSA Computer Science Oregon State UniversityCorvalisORUSA Computer Science Florida International UniversityMiamiFLUSA Computer&Information Systems Umm Al Qura UniversityMakkahSaudi Arabia

This paper presents a review of Environmental Niche Modeling and a methodology for isolating the environmental niche of an aquatic species,given that prior information is available for characterising the physical tolerances for that *** test and demonstrate our methodology,the environmental niche of the kelp bass has been isolated within Big Fisherman's Cove,Santa Catalina Island,CA,at specific confidence *** motivation for this examination is to demonstrate the utility of ecological analysis in ***,the utilisation of physical water properties to provide relative navigation and localisation for an aquatic *** environmental niches act as navigational landmarks in the seemingly featureless underwater *** water patches tend to stick together,this provides persistent landmarks for use in aquatic navigation *** provide the background and development of Environmental Niche Models,and present results from field trials for solving the navigation and localisation problem for underwater ***,we provide results from a technique developed by the authors that utilises physical water parameters,e.g.,temperature,salinity,chlorophyll,etc.,to localise an underwater vehicle in a given *** presented method leverages the concept of Environmental Niche Models to provide accurate position estimation that rivals GPS accuracy.

关键词： underwater estimation salinity

Diesel oil infiltration in soils with selected antecedent water content and bulk density

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Journal of Central South University 2016年第8期23卷 1924-1930页

作者：马艳飞李永霞 S.H.anderson 郑西来冯雪冬高佩玲 Department of Resource and Environmental Engineering Shandong University of Technology Department of Soil Environmental and Atmospheric Sciences University of Missouri Shandong Academy of Environmental Science Key Laboratory of Ocean Environment and Ecology Ministry of Education Ocean University of China

The effects of soil texture, initial water content and bulk density on diesel oil infiltration in fine sand and silty clay loam materials were evaluated. Three physical and two empirical equations express diesel oil infiltration through soils with time, with coefficients of determination greater than 0.99. Diesel oil infiltrates more quickly in the fine sand than in the silty clay loam material. Diesel oil infiltration rates are found to decrease with increasing initial water content and bulk density for the silty clay loam material. The infiltration rate of diesel oil in the fine sand material increases slightly with increasing initial water content. The diesel oil saturated conductivity(Kdiesel) decreases with increasing bulk density for the silty clay loam column. Diesel oil sorptivity(S) decreases linearly with increased initial water content and bulk density of the silty clay loam material. Changes in empirical parameters relative to initial water content and bulk density are similar to the parameter S.

关键词： infiltration diesel oil soil physical and empirical models initial water content bulk density

Global ITS diversity in the Sporothrix schenckii complex

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Fungal Diversity 2014年第3期66卷 153-165页

作者： Xun Zhou anderson M.Rodrigues Peiying Feng G.S.de Hoog Department of Dermatology Affiliated Hospital of Chongqing Medical UniversityChongqingChina Centraalbureau voor Schimmelcultures KNAW Fungal Biodiversity Centre PO Box 851673508 AD UtrechtThe Netherlands Department of Microbiology Immunology and Parasitology-DMIPCellular Biology DivisionFederal University of São Paulo-UNIFESPSão PauloBrazil Third Affiliated Hospital Sun Yat-sen UniversityGuangzhouChina Sun Yat-Sen Memorial Hospital Sun Yat-Sen UniversityGuangzhouChina Institute for Biodiversity and Ecosystem Dynamics University of AmsterdamAmsterdamThe Netherlands Peking University Health Science Center Research Center for Medical MycologyBeijingChina

Molecular phylogeny has revealed that sporotrichosis is caused by several Sporothrix species which differ in clinical *** complex is embedded within Ophiostoma,a genus mainly comprising fungi that live in association with bark beetles,but differs by a high virulence towards humans and other *** different ecology is corroborated by phylogenetic *** aim of the present study was to determine the validity of the rDNA internal transcribed spacer(ITS)region as a marker for diagnostics of species in the clinical group,using betatubulin sequences to calibrate species *** topology of the two gene trees was concordant,and all clinically relevant Sporothrix species could easily be recognized by means of the ITS *** increased geographic sampling did not affected delimitation success in the clinical clade of the *** complex.

关键词： Sporothrix schenckii Sporotrichosis Taxonomy Phylogeny ITS Barcoding

Phosphorus limitation on CO_(2)fertilization effect in tropical forests informed by a coupled biogeochemical model

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Forest Ecosystems 2024年第4期11卷 502-515页

作者： Zhuonan Wang Hanqin Tian Shufen Pan Hao Shi Jia Yang Naishen Liang Latif Kalin Christopher anderson Natural Resources Ecology Laboratory Colorado State UniversityFort CollinsCO80523USA Center for Earth System Science and Global Sustainability Schiller Institute for Integrated Science and SocietyBoston CollegeChestnut HillMAUSA Department of Earth and Environmental Sciences Boston CollegeChestnut HillMAUSA Department of Engineering Boston CollegeChestnut HillMAUSA Research Center for Eco-Environmental Sciences State Key Laboratory of Urban and Regional EcologyChinese Academy of SciencesBeijingChina Department of Natural Resource Ecology and Management Oklahoma State UniversityStillwaterOKUSA Center for Global Environmental Research(CGER) National Institute for Environmental Studies(NIES)TsukubaIbaraki305-8506Japan College of Forestry Wildlife and EnvironmentAuburn UniversityAuburnALUSA

Tropical forests store more than half of the world's terrestrial carbon(C)pool and account for one-third of global net primary productivity(NPP).Many terrestrial biosphere models(TBMs)estimate increased productivity in tropical forests throughout the 21st century due to CO_(2)***,phosphorus(P)liaitations on vegetation photosynthesis and productivity could significantly reduce the CO_(2)fertilization ***,we used a carbon-nitrogen-phosphorus coupled model(Dynamic Land Ecosystem Model;DLEM-CNP)with heterogeneous maximum carboxylation rates to examine how P limitation has affected C fluxes in tropical forests *** model results showed that the inclusion of the P processes enhanced model performance in simulating ecosystem *** further compared the simulations from DLEM-CNP,DLEM-CN,and DLEMC and the results showed that the inclusion of P processes reduced the CO_(2)fertilization effect on gross primary production(GPP)by 25%and 45%,and net ecosystem production(NEP)by 28%and 41%,respectively,relative to CN-only and C-on ly *** the 1860s to the 2010s,the DLEM-CNP estimated that in tropical forests GPP increased by 17%,plant respiration(Ra)increased by 18%,ecosystem respiration(Rh)increased by 13%,NEP increased by 121%per unit area,***,factorial experiments with DLEM-CNP showed that the enhanced NPP benefiting from the CO_(2) fertilization effect had been offset by 135%due to deforestation from the 1860s to the *** study highlights the importance of P limitation on the C cycle and the weakened CO_(2)fertilization effect resulting from P limitation in tropical forests.

关键词： Tropical forests Carbon-nitrogen-phosphorus model Phosphorus limitation CO_(2)fertilization effect Terrestfial ecosy stem model