Search Results - "Wright, I P"
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CHO-bearing organic compounds at the surface of 67P/Churyumov-Gerasimenko revealed by Ptolemy
Published in Science (American Association for the Advancement of Science) (31-07-2015)“…The surface and subsurface of comets preserve material from the formation of the solar system. The properties of cometary material thus provide insight into…”
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Human toxocariasis and direct contact with dogs
Published in Veterinary record (05-04-2003)“…Toxocariasis in man is traditionally thought to be contracted through the ingestion of eggs from contaminated soil. The disease may manifest itself in…”
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Hydropyrolysis of insoluble carbonaceous matter in the Murchison meteorite: new insights into its macromolecular structure
Published in Geochimica et cosmochimica acta (01-03-2004)“…The major organic component of carbonaceous chondrites is a solvent- insoluble, high molecular weight macromolecular material that constitutes at least 70% of…”
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Astrophysical Significance of Asymptotic Giant Branch Stellar Wind Energies Recorded in Meteoritic SiC Grains
Published in The Astrophysical journal (20-05-2004)“…Using model calculations for ion implantation into spherical grains in free space, we have identified two noble gas components implanted with high and low…”
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Investigating the variations in carbon and nitrogen isotopes in carbonaceous chondrites
Published in Geochimica et cosmochimica acta (01-06-2003)“…The carbonaceous chondrites contain significant amounts of carbon- and nitrogen-bearing components, the most abundant of which is organic matter. Stepped…”
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Record of fluid-rock interactions on Mars from the meteorite ALH84001
Published in Nature (London) (15-12-1994)“…Allan Hills (ALH) 84001 is the most recently recognized member of a suite of meteorites--the SNCs--that almost certainly originated on Mars. Several factors…”
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Selection of the landing site in Isidis Planitia of Mars probe Beagle 2
Published in Journal of Geophysical Research - Planets (01-01-2003)“…This paper describes selection and characterization of the landing site for the Mars 2004 Beagle 2 mission. The site is within Isidis Planitia between…”
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The oxygen-isotopic composition of Earth and Mars
Published in Meteoritics & planetary science (01-07-1999)“…— The small difference between the O‐isotopic mass fractionation lines of the Earth and Mars has been measured precisely using a laser fluorination system. The…”
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C, N, and Noble Gas Isotopes in Grain Size Separates of Presolar Diamonds from Efremovka
Published in Science (American Association for the Advancement of Science) (21-08-1998)“…Nanometer-size presolar diamonds from the Efremovka CV3 chondrite were physically separated into several grain size fractions by ultracentrifugation. The…”
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On the attempts to measure water (and other volatiles) directly at the surface of a comet
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (28-05-2017)“…The Ptolemy instrument on the Philae lander (of the Rosetta space mission) was able to make measurements of the major volatiles, water, carbon monoxide and…”
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The oxygen isotopic composition of water from Tagish Lake: Its relationship to low-temperature phases and to other carbonaceous chondrites
Published in Meteoritics & planetary science (01-07-2002)“…— The fall and recovery of the Tagish Lake meteorite in British Columbia in January 2000 provided a unique opportunity to study relatively pristine samples of…”
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Parasitic nematode eggs in fur samples from dogs
Published in Veterinary record (27-03-2004)Get full text
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13
High molecular weight organic matter in martian meteorites
Published in Planetary and space science (01-06-2002)“…We have performed an investigation to detect high molecular weight organic matter in martian meteorites. Solvent-extracted samples of two Antarctic finds (ALH…”
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Coring experiments with cryogenic water and carbon dioxide ices—toward planetary surface operations
Published in Planetary and space science (01-08-2004)“…As a prelude to the design of sampling devices able to extract materials from the icy surfaces of comets, outer-planet satellites, and the martian poles, it is…”
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Ptolemy operations at the surface of a comet, from planning to reality
Published in Acta astronautica (01-08-2016)“…Ptolemy is a Gas Chromatograph–Isotope Ratio–Mass Spectrometer (GC–IR–MS) aboard the Philae lander element of the Rosetta mission to comet…”
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Chromosome abnormalities in the myeloproliferative disorders
Published in Seminars in oncology (01-08-1995)Get more information
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A Technique for the Determination of 18O/16O and 17O/16O Isotopic Ratios in Water from Small Liquid and Solid Samples
Published in Analytical chemistry (Washington) (01-04-2002)“…We have developed a new technique in which a solid reagent, cobalt(III) fluoride, is used to prepare oxygen gas for isotope ratio measurement from water…”
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Ion Implantation into Presolar Grains: A Theoretical Model
Published in Publications of the Astronomical Society of Australia (2003)“…A numerical model for ion implantation into spherical grains in free space has been developed. It can be applied to single grains or collections of grains with…”
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The chemistry of micrometeoroid and space debris remnants captured on hubble space telescope solar cells
Published in International journal of impact engineering (01-12-2001)“…Prior to the retrieval in 1993 from low Earth orbit (LEO), the “—V2” Solar Array wing of the Hubble Space Telescope was exposed to hypervelocity impacts…”
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Oxygen isotopes and the early Solar System
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (15-10-2001)“…C. The effects of this alteration are progressively obliterated by later thermal metamorphism. Further heating leads to melting (shown in achondritic…”
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