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Projected Changes in Extreme Event Indices for Alaska

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Next Generation Transcriptome Sequencing and Quantitative Real-Time PCR Technologies for Characterisation of the Bemisia tabaci Asia 1 mtCOI Phylogenetic Clade

Atmospheric and Climate Sciences（大气和气候科学） 2024年第2期 191页

作者： john E.Walsh Kyle Redilla Norman Shippee Lukas Cheung david Bigelow Ronni Wilcock

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Journal of Integrative Agriculture 2012年第2期11卷 281-292页

作者： Susan Seal Mitulkumar V Patel Carl Collins john Colvin david Bailey Natural Resources Institute University of GreenwichChatham Maritime Kent ME4 4TBUnited Kingdom

A programme of functional genomics research is underway at the University of Greenwich,UK,to develop and apply genomics technologies to characterise an economically-important but under-researched Bemisia tabaci（Hemiptera：Aleyrodidae）,the Asia 1 mtCOI phylogenetic group.A comparison of this putative species from India with other important *** populations and insect species may provide targets for the development of more effective whitefly control *** a first step,next-generation sequencing（NGS）has been used to survey the transcriptome of adult female whitefly,with high quality RNA preparations being used to generate cDNA libraries for NGS using the Roche 454 Titanium DNA sequencing *** assemblies constructed from the resultant sequences（301 094 reads）using the software program CLC Genomics Workbench generated 3 821 core *** of a selection of these contigs with related sequences from other *** genetic groups has revealed good alignment for some genes（e.g.,HSP90）but misassemblies in other datasets（e.g.,the vitellogenin gene family）,highlighting the need for manual curation as well as collaborative international efforts to obtain accurate assemblies from the existing next generation sequence ***,data emerging from the NGS has facilitated the development of accurate and reliable methods for analysing gene expression based on quantitative real-time RT-PCR,illustrating the power of this approach to enable rapid expression analyses in an organism for which a complete genome sequence is currently lacking.

关键词： Bemisia tabaci whitefly transcriptome next generation sequencing quantitative real-time (QRT)-PCR Asia 1 mtCOI

Petrology,geochronology,and geophysical characterization of Mesoproterozoic rocks in central Illinois,USA

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Geoscience Frontiers 2020年第2期11卷 581-596页

作者： Jared T.Freiburg john HMcBride david HMalone Hannes ELeetaru Illinois State Geological Survey Prairie Research InstituteUniversity of Illinois at Urbana-Champaign615 E.Peabody DriveChampaignIL 61820USA University of Greifswald Institute of Geography and GeologyFriedrich-Ludwig-Jahn Str.17aD-17489 GreifswaldGermany Department of Geological Sciences Brigham Young UniversityProvoUT84602USA Department of Geography Geologyand the EnvironmentCampus Box 4400Illinois State UniversityNormalIL61790-4400USA

The Precambrian basement rocks of the Eastern Granite-Rhyolite Province(EGRP)in central Illinois(midcontinent region of North America)exhibit a complex history of early volcanism,granite emplacement,and intrusion of mafic rocks.A comprehensive suite of dedicated petrographic analyses,geophysical logs,and drill core from four basement-penetrating wells,two-dimensional and three-dimensional seismic reflection data,and U-Pb age data from the Illinois Basin–Decatur Project(IBDP)and Illinois Carbon Capture Storage(ICCS)Project site provide new constraints for interpreting the Precambrian basement of the Illinois *** new data reveal the basement to be compositionally and structurally complex,having typical EGRP felsic volcanic rocks intruded by the first reported gabbro in the Precambrian basement in ***(n?29)from rhyolite give a U-Pb weighted mean average age of 14679 ***(n?3)from a gabbro dike that intrudes the rhyolite yield a concordia age of 107312 Ma,which corresponds to Grenville-age extension and represents the first Grenville-age rock in Illinois and in the EGRP.A high-resolution three-dimensional seismic reflection volume,coincident with the four wells,provides a context for interpreting the petrological data and implies a high degree of heterogeneity for basement rocks at the IBDP–ICCS site,as also shown by the drill *** occurrence of Grenville-age gabbro is related to a prominent bowl-like structure observed on local two-dimensional seismic reflection profiles and the three-dimensional volume that is interpreted as a deep-seated mafic sill ***,heterogeneities such as the brecciated EGRP rhyolite and later gabbro intrusion observed in the basement lithology at the IBDP–ICCS may reflect previously unknown distal elements of the 1.1 Ga Midcontinent Rift in the EGRP and more likely Grenville-age extension.

关键词： Eastern granite-rhyolite province Mesoproterozoic Carbon storage Reflection seismology Zircon U-Pb geochronology Illinois

A bibliometric review on the implications of renewable offshore marine energy development on marine species

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Aquaculture and Fisheries 2022年第2期7卷 211-222页

作者： Siddharth Suhas Kulkarni david john Edwards School of Mechanical Aerospace and Automotive EngineeringCoventry UniversityGulson RoadCoventryCV12JHUK Department of Built Environment Birmingham City UniversityUK Faculty of Engineering and the Built Environment University of JohannesburgSouth Africa

The growing global demand for sustainable and environmentally friendly energy has stimulated the rapid adoption of renewable offshore ***,infrastructure needed for green energy production ironically impacts upon marine species and ***,this positional review paper seeks to comprehensively synthesise the prevailing body of knowledge on the impact of offshore energy development on a broad range of marine *** interpretivist philosophical stance and inductive reasoning was adopted using scientometric analysis to conduct a rich synthesis of extant *** an operational perspective,the Scopus database was utilised to search for key terms on the phenomena under investigation and using the VoS Viewer software for the identification of trends using scientometric *** analysis reveals that research in this area of science has increased significantly over the last decade but private sector involvement is conspicuous by its *** concerns among the research community include the impact of energy development on the abundance of species,pollution and biodiversity behaviour and *** present,researchers have extensively focused on the impact of offshore wind farms on fish and marine ***,the literature reveals no significant long-term impact upon energy development on most marine species albeit,short-term interference has raised concerns(from sound,disruption of navigation and foraging patterns,and damage of habitat).To minimise short term disruption,researchers have recommended the use of acoustic deterrence during construction,enforcement of protected areas and continued research.

关键词： Offshore energy development Wind farms Marine energy Marine species Animals Noise Infrastructure

Ab Initio Molecular Dynamic Simulation on the Elasticity of Mg_3Al_2Si_3O_(12) Pyrope

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Journal of Earth Science 2011年第2期22卷 169-175页

作者： Li Li Donald J Weidner john Brodholt Dario Alfe G david Price Mineral Physics Institute Department of Geosciences University of New York at Stony Brook Stony Brook NY 11790 USA Department of Earth Sciences University College London Gower Street London WC1E6BT UK

We calculated thermo-elastic properties of pyrope（Mg3Al2Si3O12） at mantle pressures and temperatures using Ab initio molecular dynamic simulation.A third-order Birch-Murnaghan equation at a reference temperature of 2 000 K fits the calculations with bulk modulus,K0=159.5 GPa,K0＇=4.3,V0=785.89 A3,Grüneisen parameter,γ0=1.15,q=0.80,Anderson Grüneisen parameter δT=3.76 and thermal expansion,α0=2.93×10^-5 K^-*** to room temperature,where V0=750.80 A3,γ0 and α0 become 1.11 and 2.47×10^-5 K^-*** elastic properties of pyrope are found to be nearly isotropic at transition zone conditions.

关键词： AIMD thermo-elasticity pyrope high pressure.

Exploring the use of transcranial photobiomodulation in Parkinson's disease patients

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Neural Regeneration Research 2018年第10期13卷 1738-1740页

作者： Catherine Hamilton david Hamilton Frank Nicklason Nabil El Massri john Mitrofanis Department of Anatomy University of Sydney Department of Geriatric Medicine Royal Hobart Hospital

Parkinson＇s disease is a neurological disorder with distinct motor signs of resting tremor,akinesia and/or lead-pipe rigidity,together with non-motor symptoms of impaired smell,cognition and autonomic *** manifest af... 详细信息

关键词： Exploring the use of transcranial photobiomodulation in Parkinson’s disease patients Figure

History and evaluation of national-scale geochemical data sets for the United States

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Geoscience Frontiers 2013年第2期4卷 167-183页

作者： david B.Smith Steven M.Smith john D.Horton U.S.Geological Survey.Denver Federal Center MS 973.DenverCO 80225USA

Six national-scale,or near national-scale,geochemical data sets for soils or stream sediments exist for the United *** earliest of these,here termed the ＇Shacklette＇ data set,was generated by a U.S. Geological Survey（USGS） project conducted from 1961 to *** project used soil collected from a depth of about 20 cm as the sampling medium at 1323 sites throughout the conterminous *** National Uranium Resource Evaluation Hydrogeochemical and Stream Sediment Reconnaissance（NUREHSSR） Program of the *** of Energy was conducted from 1975 to 1984 and collected either stream sediments,lake sediments,or soils at more than 378,000 sites in both the conterminous *** *** sampled area represented about 65%of the *** Natural Resources Conservation Service（NRCS）,from 1978 to 1982,collected samples from multiple soil horizons at sites within the major crop-growing regions of the conterminous *** data set contains analyses of more than 3000 *** National Geochemical Survey,a USGS project conducted from 1997 to 2009,used a subset of the NURE-HSSR archival samples as its starting point and then collected primarily stream sediments, with occasional soils,in the parts of the *** covered by the NURE-HSSR *** data set contains chemical analyses for more than 70,000 *** USGS,in collaboration with the Mexican Geological Survey and the Geological Survey of Canada,initiated soil sampling for the North American Soil Geochemical Landscapes Project in *** of three horizons or depths at more than 4800 sites in the *** completed in 2010,and chemical analyses are currently *** NRCS initiated a project in the 1990s to analyze the various soil horizons from selected pedons throughout the *** data set currently contains data from more than 1400 *** paper（1） discusses each data set in terms of its purpose,sample collection protocols,and analytical methods;and（2） evaluates each data set in terms

关键词： Geochemical mapping National-scale geochemical data Geochemical baselines United States

Geomechanical properties will constrain CO_(2)injection into the lower Ordovician Rose Run sandstone deep saline reservoir,Appalachian Basin,Kentucky,USA

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Journal of Rock Mechanics and Geotechnical Engineering 2021年第5期13卷 947-960页

作者： john Richard Bowersox Stephen F.Greb Junfeng Zhu david C.Harris Kentucky Geological Survey University of KentuckyLexingtonKY40506-0107USA

The Kentucky Geological Survey(KGS)1 Hanson Aggregates stratigraphic research well,Carter County,Kentucky,USA,was drilled to a total depth of 1474 m as a field-scale test of potential CO2 storage reservoir properties in the Central Appalachian *** properties of the Rose Run sandstone(upper Ordovician Knox group)were tested for its suitability as a storage reservoir.A 9.8-m thick section of the Rose Run was penetrated at 1000 m drilled depth and a whole-diameter core and rotary sidewall cores were *** porosity and permeability measured in core plugs were 9.1%and 44.6 mD,*** vertical stress gradient calculated in the wellbore was 26 MPa/*** fractures in dolomites underlying and overlying the Rose Run follow the contemporary N53E Appalachian Basin stress *** Rose Run elastic geomechanical properties were calibrated to values measured in core plugs to evaluate its fracturing risk as a CO2 storage *** Young’s modulus and Poisson’s ratio values of the Rose Run were 45 GPa and 0.23,respectively,whereas Young’s modulus and Poisson’s ratio values were 77.1 GPa and 0.28,respectively,in the overlying Beekmantown dolomite,suggesting the Rose Run may fracture if overpressured during CO2 injection but be confined by the *** compressive strength measured in core plugs found the Rose Run and Beekmantown fractured at mean axial stresses of 156.5 MPa and 282.2 MPa,respectively,confirming the Beekmantown as suitable for confining CO2 injected into the Rose Run.A step-rate test was conducted in a mechanically-isolated 18.6-m interval bracketing the Rose *** Rose Run reservoir pressure was 9.3 MPa,and fracture gradient under injection was 13.6 MPa/km,suggesting step-rate testing before CO2 injection,and subsequent pressure monitoring to ensure *** the region around the KGS 1 Hanson Aggregates well is underpressured and adjacent to faulted Precambrian basement,further research is neede

关键词： Appalachian Basin Rose Run sandstone Geomechanics Carbon sequestration Step-rate testing

Current understanding of the origin of equiaxed grains in pure metals during ultrasonic solidification and a comparison of grain formation processes with low frequency vibration,pulsed magnetic and electric-current pulse techniques

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Journal of Materials Science & Technology 2021年第6期65卷 38-53页

作者： Nagasivamuni Balasubramani Gui Wang david H.St john Matthew S.Dargusch Centre for Advanced Materials Processing and Manufacturing(AMPAM) School of Mechanical and Mining EngineeringUniversity of QueenslandSt Lucia

The formation of fine,non-dendritic equiaxed grains throughout a casting without the addition of refiners(*** of alloy chemistry),is made possible by using ultrasonic,magnetic or pulsed magnetic and electric current pulse *** dominant mechanisms proposed for the grain refinement produced during the application of an external field are cavitation phenomena assisted nucleation or fragmentation of dendrites(ultrasonic field),wall crystals arising from the cold surface of the mould(electric current pulse,magnetic and pulsed magnetic fields).In all these cases fluid flow provides an additional contribution(*** temperature gradients,growth rate and remelting of dendrites)to maintaining an equiaxed grain *** origin of equiaxed grains under an external field also depends on the casting conditions(volume and shape of casting)and the type of alloy other than the mechanisms specific to a particular *** current work aims to provide a detailed understanding of the various factors and mechanisms that influence the grain refinement achieved during the solidification of pure metals(magnesium and zinc)subjected to Ultra Sonic Treatment(UST).The role of the temperature range of UST application,time duration and an unpreheated sonotrode are examined with respect to the origin,evolution of equiaxed grain structure,morphology and the columnar to equiaxed *** origin of grains was analysed from three fundamental aspects that contribute to refinement(i)heterogeneous nucleation(ii)fragmentation of existing dendrites and(iii)grains produced from the colder surfaces(arising from mould walls or vibrating surfaces as wall crystals).A comparison of UST refinement with mechanical,low-frequency vibration,electric current pulse and magnetic field solidification of pure metals has also been provided to highlight the importance of the cold surfaces(sonotrode and mould wall)in influencing grain refinement.

关键词： Ultrasonic treatment Grain refinement Equiaxed grains Magnesium Zinc Solidification