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Mass budgets of the lambert, Mellor and Fisher Glaciers and basal fluxes beneath their flowbands on Amery Ice Shelf

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Science China Earth Sciences 2007年第11期50卷 1693-1706页

作者： Kenneth C. JEZEK Beata M. CSATHó Ute C. HERZFElD katy l. farness Philippe HUYBRECHTS Byrd Polar Research Center The Ohio State University Columbus OH 43210 USA CIRES/NSIDC University of Colorado Boulder Boulder CO 80309-0449 USA Departement Geografie Vrije Universiteit Brussel Pleinlaan 2 B-1050 Brussels Belgium Alfred-Wegener-Institut für Polar-und Meeresforschung Postfach 120161 D-27515 Bremerhaven Germany

We used in situ measurements and remote-sensing data sets to evaluate the mass budgets of the lambert, Mellor and Fisher Glaciers and the basal melting and freezing rates beneath their flowbands on the Amery Ice Shelf. Our findings show the lambert and Mellor Glaciers upstream of the ANARE lambert Glacier Basin (lGB) traverse may have positive imbalances of 3.9±2.1 Gt a-1 and 2.1±2.4 Gt a-1, respectively, while the Fisher Glacier is approximately in balance. The upstream region as a whole has a positive imbalance of 5.9±4.9 Gt a-1. The three same glaciers downstream of the ANARE lGB traverse line are in negative imbalance, where the whole downstream region has a negative imbalance of -8.5±5.8 Gt a-1. Overall the mass budgets of the lambert, Mellor, and Fisher Glaciers are close to bal-ance, and the collective three-glacier system is also nearly in balance with a mass budget of -2.6±6.5 Gt a-1. The significant positive imbalances for the interior basin upstream of the ice-movement stations established in the early 1970s (Gl line) reported previously are possibly due to an overestimate of the total accumulation and an underestimate of the ice flux through the Gl line. The mean melting rate is -23.0±3.5 m ice a-1 near the southern grounding line, which decreases rapidly downstream, and transitions to refreezing at around 300 km from the southern extremity of the Amery Ice Shelf. Freezing rates along the flowbands are around 0.5±0.1 to 1.5±0.2 m ice a-1. The per-centage of ice lost from the interior by basal melting beneath the flowbands is about 80%±5%. The total basal melting and refreezing beneath the three flowbands is 50.3±7.5 Gt ice a-1 and 7.0±1.1 Gt ice a-1, respectively. We find a much larger total basal melting and net melting than the results for the whole Amery Ice Shelf derived from previous modeling and oceanographic measurements.

关键词： mass budget basal melting and freezing lambert Glacier Basin Amery Ice Shelf East Antarctica

Canopy Roughness:A New Phenotypic Trait to Estimate Aboveground Biomass from Unmanned Aerial System

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Plant Phenomics 2020年第1期2卷 419-428页

作者： Monica Herrero-Huerta Alexander Bucksch Eetu Puttonen katy M.Rainey Department of Agronomy Purdue UniversityWest LafayetteINUSA Department of Cartographic and land Engineering Higher Polytechnic School of AvilaUniversity of SalamancaAvilaSpain Institute for Plant Sciences College of AgriculturePurdue UniversityWest LafayetteINUSA Department of Plant Biology University of GeorgiaAthensGAUSA Warnell School of Forestry and Natural Resources University of GeorgiaAthensGAUSA Institute of Bioinformatics University of GeorgiaAthensGAUSA Finnish Geospatial Research Institute National Land Survey of FinlandMasalaFinland

Cost-effective phenotyping methods are urgently needed to advance crop genetics in order to meet the food,fuel,and fiber demands of the coming ***,characterizing plot level traits in fields is of particular *** developments in highresolution imaging sensors for UAS(unmanned aerial systems)focused on collecting detailed phenotypic measurements are a potential *** introduce canopy roughness as a new plant plot-level *** tested its usability with soybean by optical data collected from UAS to estimate *** validate canopy roughness on a panel of 108 soybean[Glycine max(l.)Merr.]recombinant inbred lines in a multienvironment trial during the R^(2) growth stage.A senseFly eBee UAS platform obtained aerial images with a senseFly *** digital *** a structure from motion(SfM)technique,we reconstructed 3D point clouds of the soybean experiment.A novel pipeline for feature extraction was developed to compute canopy roughness from point *** used regression analysis to correlate canopy roughness with field-measured aboveground biomass(AGB)with a leave-one-out ***,our models achieved a coefficient of determination(R^(2))greater than 0.5 in all ***,we found that canopy roughness has the ability to discern AGB variations among different *** test trials demonstrate the potential of canopy roughness as a reliable trait for high-throughput phenotyping to estimate *** such,canopy roughness provides practical information to breeders in order to select phenotypes on the basis of UAS data.

关键词： soybean Biomass roughness

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采用随机试验确定何时监测新治疗方法的反应

英国医学杂志中文版 2008年第3期11卷 168-173页

作者： katy J l Bell les Irwig Jonathan C Craig Petra Macaskill 汪海波(译) Screening and Test Evaluation Program School of Public Health Edward Ford Building (A27) The University of Sydney NSW 2006 不详

监测治疗的初始反应在患者的临床管理中总是有帮助的吗？ katy Bell和他的同事们建立了一个理论框架。

关键词：治疗方法监测治疗反应随机试验临床管理指标监测慢性病

Contribution of iron status at birth to infant iron status at 9 months

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Contribution of iron status at birth to infant iron status a...

Mobilizing Crop Biodiversity

2017浙江省营养学会年会暨西湖营养学术论坛

作者：朱冰泉 Blair Richards Niko Kaciroti katy M.Clark Zhengyan Zhao Jie Shao Betsy lozoff Children's Hospital Zhejiang University School of Medicine Center for Human Growth and Development University of Michigan Department of Pediatrics and Communicable Diseases University of Michigan

BACKGROUND/OBJECTIVE:A physiologic framework indicates that infant iron status will be determined by the iron the infant is born with and postnatal iron needs,availability,and *** previous studies did not assess iron status at *** used the framework to consider multiple measures of iron status at birth in assessing predictors of iron status at 9 ***/METHODS:Hemoglobin(Hb),serum ferritin(SF),serum transferrin receptor(sTfR),and zinc protoporphyrin/heme(ZPP/H) were measured in cord blood and venous blood at 9 months for545 healthy term Chinese infants,along with mean cell volume(MCV) and red cell distribution width(RDW) at 9 *** deficiency(ID) at 9 months was defined as ≥2 abnormal iron measures,iron deficiency anemia(IDA) as ID+anemia(Hbl).We used factor analysis to create a 9-month iron composite and calculated body iron based on SF and *** applied structural equation modeling to assess predictors of 9-month iron status and used logistic regression to calculate odds ratios(OR) for ID,IDA,and ***:At 9 months,34.7%of infants had ID overall(19.6%IDA).Higher cord ZPP/H and sTfR,lower Hb,lower birth weight,male sex,older age at testing,higher weight,and breastfeeding predicted poorer 9-month iron composite;cord ZPP/H,birth weight,sex,age,and feeding predicted body *** was the strongest single *** to formula-fed infants,the odds of IDA were19.1 and 3.6 times higher in breastfed and mixed-fed infants,***:The study showed that indicators of iron status at birth,postnatal iron needs,and external iron sources independently predicted iron status at 9 *** was an additional predictor.

关键词： iron deficiency cord blood iron status sex differences infant feeding infants China

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Molecular Plant 2020年第10期13卷 1341-1344页

作者： Susan McCouch Zahra katy Navabi Michael Abberton Noelle l.Anglin Rosa lia Barbieri Michael Baum Kirstin Bett Helen Booker Gerald l.Brown Glenn J.Bryan luigi Cattivelli David Charest Kellye Eversole Marcelo Freitas Kioumars Ghamkhar Dario Grattipaglia Robert Henry Maria Cleria Valadares Inglis Tofazzal Islam Zakaria Kehel Paul J.Kersey Graham J.King Stephen Kresovich Emily Marden Sean Mayes Marie Noelle Ndjiondjiop Henry T.Nguyen Samuel Rezende Paiva Roberto Papa Peter W.B.Phillips Awais Rasheed Christopher Richards Mathieu Flouard Maria Jose Amstalden Sampaio Uwe Scholz Paul D.Shaw Brad Sherman S.Evan Staton Nils Stein Jan Svensson Mark Tester Jose Francisco Montenegro Valls Rajeev Varshney Stephen Visscher Eric von Wettberg Robbie Waugh Peter Wenzl loren H.Rieseberg Plant Breeding and Genetics School of Integrated Plant SciencesCornell UniversityIthacaNY14853USA DivSeek Global Institute for Food Security110 Gymnasium PlaceUniversity of SaskatchewanSaskatoonSKS7N 0W9Canada lnternational Institute of Tropical Agriculture(IITA) PMB 5320Oyo RdIbadanNigeria International Potato Center(CIP)1895 Avenida la Molina Lima Peru 12Lima 15023Peru Embrapa Genetic Resources and Biotechnology Parque Estacjao BiologicaFinal Av W5 NorteCaixa Postal 0237270770-917-Brasilia DFBrazil International Center for Agricultural Research in the Dry Areas(I CAR DA) Station Exp.INRA-Quich.Rue Hafiane Cherkaoui.Agdal.Rabat-Instituts10111RabatMorocco Department of Plant Sciences University of Saskatchewan51 Campus Dr.SaskatoonSK S7N 5A8Canada Department of Plant Agriculture University of GuelphRm 316Crop Science Bldg50 Stone Rd EGuelphON N1G 2W1Canada Genome Prairie 111 Research DriveSuite 101SaskatoonSKS7N 3R2Canada The James Hutt on Institute Errol RoadInvergowrieDundeeDD25DAUK CREA Research Centre for Genomics and Bioinformaticsvia San Protaso 302Fiorenzuola d'Arda29017Italy Genome British Columbia 400-575 West 8th AvenueVancouverBCV5Z 0C4Canada International Wheat Genome Sequencing Consortium 2841 NE Marywood CtLee's SummitMO.64086USA Forage Science Grasslands Research CentreAgResearchPalmerston North4410New Zealand Queensla nd Alliance for Agriculture and Food Inn ovation University of QueenslandBrisbaneQLD 4072Australia Institute of Biotechnology and Genetic Engineering(IBGE) Bangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur 1706Bangladesh Southern Cross University PO Box 157LismoreNSW 2480Australia Royal Botanic Gardens KewRichmondSurreyTW93AEUK Feed the Future Innovation lab for Crop Improvement 431 Weill HallCornell UniversityIthacaNY14853USA Department of Botany and Biodiversity Research Centre University of British ColumbiaVancouverBC V6R 2A5Canada Crops For the Future(UK)CIC 76-80 Baddow Road ChelmsfordEs

Over the past 70 years,the world has witnessed extraordinary growth in crop productivity,enabled by a suite of technological advances,including higher yielding crop varieties,improved farm management,synthetic agrochemicals,and agricultural *** this"Green Revolution"intensified crop production,and is credited with reducing famine and malnutrition,its benefits were accompanied by several undesirable collateral effects(Pingali,2012).These include a narrowing of agricultural biodiversity,stemming from increased monoculture and greater reliance on a smaller number of crops and crop varieties for the majority of our *** reduction in diversity has created vulnerabilities to pest and disease epidemics,climate variation,and ultimately to human health(Harlan,1972).

关键词： intensified crops agricultural

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凯特杏与金太阳杏光合特性比较

沈阳农业大学学报 2007年第3期38卷 283-286页

作者：关弘岩秦嗣军吕德国刘国成杜国栋沈阳农业大学园艺学院沈阳110161

以开放式气路,采用CIRAS-1型便携式光合系统测定凯特杏(Prunus ***)和金太阳杏(Prunus ***)光合特性,结果表明:凯特杏叶片净光合速率(Pn)日变化曲线为单峰型,金太阳杏叶片Pn日变化曲线为双峰型。凯特杏与金太阳杏的光合能力(Pc)分别为(1... 详细信息

以开放式气路,采用CIRAS-1型便携式光合系统测定凯特杏(Prunus ***)和金太阳杏(Prunus ***)光合特性,结果表明:凯特杏叶片净光合速率(Pn)日变化曲线为单峰型,金太阳杏叶片Pn日变化曲线为双峰型。凯特杏与金太阳杏的光合能力(Pc)分别为(14.1±0.8)μmol.m-2.s-1和(11.7±0.7)μmol.m-2.s-1、羧化效率(CE)分别为(0.0637±0.001)和(0.0574±0.002)、表观量子效率(AQY)分别为(0.0263±0.003)和(0.0239±0.001)、饱合光强(Sl)分别为(1610±115)μmol.m-2.s-1和(1337±30)μmol.m-2.s-1、光补偿点(lCP)分别为(39±2)μmol.m-2.s-1和(52±6)μmol.m-2.s-1、CO2补偿点(CCP)分别为(133±14)μmol.m-2.s-1和(150±8)μmol.m-2.s-1。凯特杏与金太阳杏属于喜光品种,但凯特杏的光合能力强于金太阳杏。

关键词：凯特杏金太阳杏光合特性光合能力羧化效率表观量子效率

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耦合非线性波动方程组的约化摄动分析

西北师范大学学报（自然科学版） 2006年第3期42卷 37-41页

作者：易金桥郭志荣吕克璞段文山西北师范大学物理与电子工程学院甘肃兰州730070

基于远方场理论的思想,应用约化摄动分析方法对耦合KdV方程和耦合mKdV方程进行了近似求解,并得到了它们的几组孤立波解,与已有结论相比,其振幅的物理意义更加丰富.在特殊情况下,所得到的近似解与精确解具有完全相同的形式.分析表明,所... 详细信息

基于远方场理论的思想,应用约化摄动分析方法对耦合KdV方程和耦合mKdV方程进行了近似求解,并得到了它们的几组孤立波解,与已有结论相比,其振幅的物理意义更加丰富.在特殊情况下,所得到的近似解与精确解具有完全相同的形式.分析表明,所应用的约化摄动方法在研究小振幅扰动问题方面有一定的普适性.

关键词：约化摄动方法耦合KdV方程组耦合mKdV方程组