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  • Springer  (3,171)
  • Wiley  (1,585)
  • American Association for the Advancement of Science (AAAS)  (599)
  • 2005-2009  (5,355)
  • 1920-1924
  • 2005  (5,355)
  • 11
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    Composition and dynamics of plasma in Saturn's magnetosphere (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-02-26
    Description: During Cassini's initial orbit, we observed a dynamic magnetosphere composed primarily of a complex mixture of water-derived atomic and molecular ions. We have identified four distinct regions characterized by differences in both bulk plasma properties and ion composition. Protons are the dominant species outside about 9 RS (where RS is the radial distance from the center of Saturn), whereas inside, the plasma consists primarily of a corotating comet-like mix of water-derived ions with approximately 3% N+. Over the A and B rings, we found an ionosphere in which O2+ and O+ are dominant, which suggests the possible existence of a layer of O2 gas similar to the atmospheres of Europa and Ganymede.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Young, D T -- Berthelier, J-J -- Blanc, M -- Burch, J L -- Bolton, S -- Coates, A J -- Crary, F J -- Goldstein, R -- Grande, M -- Hill, T W -- Johnson, R E -- Baragiola, R A -- Kelha, V -- McComas, D J -- Mursula, K -- Sittler, E C -- Svenes, K R -- Szego, K -- Tanskanen, P -- Thomsen, M F -- Bakshi, S -- Barraclough, B L -- Bebesi, Z -- Delapp, D -- Dunlop, M W -- Gosling, J T -- Furman, J D -- Gilbert, L K -- Glenn, D -- Holmlund, C -- Illiano, J-M -- Lewis, G R -- Linder, D R -- Maurice, S -- McAndrews, H J -- Narheim, B T -- Pallier, E -- Reisenfeld, D -- Rymer, A M -- Smith, H T -- Tokar, R L -- Vilppola, J -- Zinsmeyer, C -- New York, N.Y. -- Science. 2005 Feb 25;307(5713):1262-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Southwest Research Institute, San Antonio, TX 78238, USA. dyoung@swri.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15731443" target="_blank"〉PubMed〈/a〉
    Keywords: Atmosphere ; Extraterrestrial Environment ; Hydrogen ; Ice ; Ions ; *Magnetics ; *Oxygen ; Protons ; *Saturn ; Spacecraft ; Spectrum Analysis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 12
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    Measurement of the electric form factor of the neutron at Q2 = 0.3-0.8 (GeV/ c) 2 ⋆ (2005)
    Springer
    Details
    Publication Date: 2005-01-17
    Print ISSN: 1434-6001
    Electronic ISSN: 1434-601X
    Topics: Physics
    Published by Springer
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  • 13
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    Problems with co-funding in Canada (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-06-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tyers, Mike -- Brown, Eric -- Andrews, David W -- Bergeron, John J M -- Boone, Charles -- Bremner, Roderick -- Bussey, Howard A -- Cross, James C -- Davies, Julian E -- Desjardins, Michel -- Dick, John E -- Dumont, Daniel J -- Durocher, Daniel -- Ellison, Michael J -- Golding, G Brian -- Gray, Michael W -- Harrington, Lea A -- Hieter, Philip A -- Johnston, Gerald -- Kelvin, David J -- McCarry, Brian E -- Michnick, Stephen W -- Ouellette, Francis -- Pearlman, Ron E -- Penn, Linda J Z -- Pelletier, Jerry -- Rachubinski, Richard A -- Rennie, Paul S -- Rotin, Daniela -- Rottapel, Robert -- Sadowski, Ivan -- Sicheri, Frank -- Siminovitch, Lou -- Sonenberg, Nahum -- Siu, K W Michael -- Tremblay, Michel L -- Winegarden, Neil -- Wozniak, Richard W -- Wright, Gerard D -- Woodgett, James R -- New York, N.Y. -- Science. 2005 Jun 24;308(5730):1867.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15976286" target="_blank"〉PubMed〈/a〉
    Keywords: Canada ; Financing, Government ; Genome ; *Research Support as Topic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 14
    Electronic Resource
    Electronic Resource
    Measurement of the πmeson polarizabilities via the γp → γπ+n reaction (2005)
    Springer
    The European physical journal 23 (2005), S. 113-127 
    Details
    ISSN: 1434-601X
    Keywords: 12.38.Qk Experimental tests ; 13.40.-f Electromagnetic processes and properties ; 13.60.Le Meson production
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. An experiment on the radiative π{+}-meson photoproduction from the proton ( γp → γπ{+}n) was carried out at the Mainz Microtron MAMI in the kinematic region 537MeV 〈 Eγ 〈 817MeV, 140°≤ $ \theta_{{\gamma \gamma ^{\prime }}}^{{{{\rm cm}}}}$ ≤180°. The π{+}-meson polarizabilities have been determined from a comparison of the data with the predictions of two different theoretical models, the first one being based on an effective pole model with pseudoscalar coupling while the second one is based on diagrams describing both resonant and nonresonant contributions. The validity of the models has been verified by comparing the predictions with the present experimental data in the kinematic region where the pion polarizability contribution is negligible ( s1 〈 5mπ2) and where the difference between the predictions of the two models does not exceed 3%. In the region, where the pion polarizability contribution is substantial ( 5 〈 s1/mπ2 〈 15, -12 〈 t/mπ2 〈 - 2), the difference $\ensuremath{(\alpha -\beta )_{\pi^{+}}}$ of the electric (α) and the magnetic (β) polarizabilities has been determined. As a result we find $\ensuremath{(\alpha -\beta )_{\pi^{+}}=(11.6\pm 1.5_{{\rm stat}}\pm 3.0_{{\rm syst}}\pm 0.5_{{\rm mod}})\times 10^{-4}{}{\rm fm^{3}}}$ . This result is at variance with recent calculations in the framework of chiral perturbation theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epja/i2004-10056-2
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  • 15
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    Deep Impact: excavating comet Tempel 1 (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-09-10
    Description: Deep Impact collided with comet Tempel 1, excavating a crater controlled by gravity. The comet's outer layer is composed of 1- to 100-micrometer fine particles with negligible strength (〈65 pascals). Local gravitational field and average nucleus density (600 kilograms per cubic meter) are estimated from ejecta fallback. Initial ejecta were hot (〉1000 kelvins). A large increase in organic material occurred during and after the event, with smaller changes in carbon dioxide relative to water. On approach, the spacecraft observed frequent natural outbursts, a mean radius of 3.0 +/- 0.1 kilometers, smooth and rough terrain, scarps, and impact craters. A thermal map indicates a surface in equilibrium with sunlight.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉A'Hearn, M F -- Belton, M J S -- Delamere, W A -- Kissel, J -- Klaasen, K P -- McFadden, L A -- Meech, K J -- Melosh, H J -- Schultz, P H -- Sunshine, J M -- Thomas, P C -- Veverka, J -- Yeomans, D K -- Baca, M W -- Busko, I -- Crockett, C J -- Collins, S M -- Desnoyer, M -- Eberhardy, C A -- Ernst, C M -- Farnham, T L -- Feaga, L -- Groussin, O -- Hampton, D -- Ipatov, S I -- Li, J-Y -- Lindler, D -- Lisse, C M -- Mastrodemos, N -- Owen, W M Jr -- Richardson, J E -- Wellnitz, D D -- White, R L -- New York, N.Y. -- Science. 2005 Oct 14;310(5746):258-64. Epub 2005 Sep 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Maryland, College Park, MD 20742, USA. ma@astro.umd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16150978" target="_blank"〉PubMed〈/a〉
    Keywords: Jupiter ; *Meteoroids ; Organic Chemicals/analysis ; Spectrum Analysis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 16
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    A serpentinite-hosted ecosystem: the Lost City hydrothermal field (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-03-05
    Description: The serpentinite-hosted Lost City hydrothermal field is a remarkable submarine ecosystem in which geological, chemical, and biological processes are intimately interlinked. Reactions between seawater and upper mantle peridotite produce methane- and hydrogen-rich fluids, with temperatures ranging from 〈40 degrees to 90 degrees C at pH 9 to 11, and carbonate chimneys 30 to 60 meters tall. A low diversity of microorganisms related to methane-cycling Archaea thrive in the warm porous interiors of the edifices. Macrofaunal communities show a degree of species diversity at least as high as that of black smoker vent sites along the Mid-Atlantic Ridge, but they lack the high biomasses of chemosynthetic organisms that are typical of volcanically driven systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kelley, Deborah S -- Karson, Jeffrey A -- Fruh-Green, Gretchen L -- Yoerger, Dana R -- Shank, Timothy M -- Butterfield, David A -- Hayes, John M -- Schrenk, Matthew O -- Olson, Eric J -- Proskurowski, Giora -- Jakuba, Mike -- Bradley, Al -- Larson, Ben -- Ludwig, Kristin -- Glickson, Deborah -- Buckman, Kate -- Bradley, Alexander S -- Brazelton, William J -- Roe, Kevin -- Elend, Mitch J -- Delacour, Adelie -- Bernasconi, Stefano M -- Lilley, Marvin D -- Baross, John A -- Summons, Roger E -- Sylva, Sean P -- New York, N.Y. -- Science. 2005 Mar 4;307(5714):1428-34.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Oceanography, University of Washington, Seattle, WA 98195, USA. kelley@ocean.washington.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15746419" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Archaea/classification/*growth & development/isolation & purification/metabolism ; Bacteria/classification/*growth & development/isolation & purification/metabolism ; Biodiversity ; Biomass ; *Carbonates ; Colony Count, Microbial ; *Ecosystem ; Environment ; Fishes ; *Geologic Sediments/chemistry/microbiology ; Hot Temperature ; Hydrogen/analysis/metabolism ; Hydrogen-Ion Concentration ; *Invertebrates ; Lipids/analysis ; Methane/analysis/metabolism ; Phylogeny ; *Seawater
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
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    Genome of the host-cell transforming parasite Theileria annulata compared with T. parva (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-07-05
    Description: Theileria annulata and T. parva are closely related protozoan parasites that cause lymphoproliferative diseases of cattle. We sequenced the genome of T. annulata and compared it with that of T. parva to understand the mechanisms underlying transformation and tropism. Despite high conservation of gene sequences and synteny, the analysis reveals unequally expanded gene families and species-specific genes. We also identify divergent families of putative secreted polypeptides that may reduce immune recognition, candidate regulators of host-cell transformation, and a Theileria-specific protein domain [frequently associated in Theileria (FAINT)] present in a large number of secreted proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pain, Arnab -- Renauld, Hubert -- Berriman, Matthew -- Murphy, Lee -- Yeats, Corin A -- Weir, William -- Kerhornou, Arnaud -- Aslett, Martin -- Bishop, Richard -- Bouchier, Christiane -- Cochet, Madeleine -- Coulson, Richard M R -- Cronin, Ann -- de Villiers, Etienne P -- Fraser, Audrey -- Fosker, Nigel -- Gardner, Malcolm -- Goble, Arlette -- Griffiths-Jones, Sam -- Harris, David E -- Katzer, Frank -- Larke, Natasha -- Lord, Angela -- Maser, Pascal -- McKellar, Sue -- Mooney, Paul -- Morton, Fraser -- Nene, Vishvanath -- O'Neil, Susan -- Price, Claire -- Quail, Michael A -- Rabbinowitsch, Ester -- Rawlings, Neil D -- Rutter, Simon -- Saunders, David -- Seeger, Kathy -- Shah, Trushar -- Squares, Robert -- Squares, Steven -- Tivey, Adrian -- Walker, Alan R -- Woodward, John -- Dobbelaere, Dirk A E -- Langsley, Gordon -- Rajandream, Marie-Adele -- McKeever, Declan -- Shiels, Brian -- Tait, Andrew -- Barrell, Bart -- Hall, Neil -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2005 Jul 1;309(5731):131-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SA, UK. ap2@sanger.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15994557" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Animals ; Cattle ; Cell Proliferation ; Chromosome Mapping ; Chromosomes/genetics ; Conserved Sequence ; Genes, Protozoan ; *Genome, Protozoan ; Life Cycle Stages ; Lipid Metabolism ; Lymphocytes/cytology/parasitology ; Molecular Sequence Data ; Multigene Family ; Phylogeny ; Protein Sorting Signals/genetics ; Protein Structure, Tertiary ; Proteome ; Protozoan Proteins/chemistry/*genetics/physiology ; Sequence Analysis, DNA ; Species Specificity ; Synteny ; Telomere/genetics ; Theileria annulata/*genetics/growth & development/immunology/pathogenicity ; Theileria parva/*genetics/growth & development/immunology/pathogenicity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 18
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    Role of land-surface changes in arctic summer warming (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-09-24
    Description: A major challenge in predicting Earth's future climate state is to understand feedbacks that alter greenhouse-gas forcing. Here we synthesize field data from arctic Alaska, showing that terrestrial changes in summer albedo contribute substantially to recent high-latitude warming trends. Pronounced terrestrial summer warming in arctic Alaska correlates with a lengthening of the snow-free season that has increased atmospheric heating locally by about 3 watts per square meter per decade (similar in magnitude to the regional heating expected over multiple decades from a doubling of atmospheric CO2). The continuation of current trends in shrub and tree expansion could further amplify this atmospheric heating by two to seven times.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chapin, F S 3rd -- Sturm, M -- Serreze, M C -- McFadden, J P -- Key, J R -- Lloyd, A H -- McGuire, A D -- Rupp, T S -- Lynch, A H -- Schimel, J P -- Beringer, J -- Chapman, W L -- Epstein, H E -- Euskirchen, E S -- Hinzman, L D -- Jia, G -- Ping, C-L -- Tape, K D -- Thompson, C D C -- Walker, D A -- Welker, J M -- New York, N.Y. -- Science. 2005 Oct 28;310(5748):657-60. Epub 2005 Sep 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Arctic Biology; University of Alaska Fairbanks, Fairbanks, AK 99775, USA. terry.chapin@uaf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16179434" target="_blank"〉PubMed〈/a〉
    Keywords: Alaska ; Arctic Regions ; *Greenhouse Effect ; Picea ; Seasons ; Trees
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 19
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    Radar soundings of the subsurface of Mars (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-12-02
    Description: The martian subsurface has been probed to kilometer depths by the Mars Advanced Radar for Subsurface and Ionospheric Sounding instrument aboard the Mars Express orbiter. Signals penetrate the polar layered deposits, probably imaging the base of the deposits. Data from the northern lowlands of Chryse Planitia have revealed a shallowly buried quasi-circular structure about 250 kilometers in diameter that is interpreted to be an impact basin. In addition, a planar reflector associated with the basin structure may indicate the presence of a low-loss deposit that is more than 1 kilometer thick.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Picardi, Giovanni -- Plaut, Jeffrey J -- Biccari, Daniela -- Bombaci, Ornella -- Calabrese, Diego -- Cartacci, Marco -- Cicchetti, Andrea -- Clifford, Stephen M -- Edenhofer, Peter -- Farrell, William M -- Federico, Costanzo -- Frigeri, Alessandro -- Gurnett, Donald A -- Hagfors, Tor -- Heggy, Essam -- Herique, Alain -- Huff, Richard L -- Ivanov, Anton B -- Johnson, William T K -- Jordan, Rolando L -- Kirchner, Donald L -- Kofman, Wlodek -- Leuschen, Carlton J -- Nielsen, Erling -- Orosei, Roberto -- Pettinelli, Elena -- Phillips, Roger J -- Plettemeier, Dirk -- Safaeinili, Ali -- Seu, Roberto -- Stofan, Ellen R -- Vannaroni, Giuliano -- Watters, Thomas R -- Zampolini, Enrico -- New York, N.Y. -- Science. 2005 Dec 23;310(5756):1925-8. Epub 2005 Nov 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Infocom Department, "La Sapienza" University of Rome, 00184 Rome, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16319122" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 20
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    Study of QGP signatures with the ϕ → K + K – signal in Pb-Pb ALICE events (2005)
    Springer
    Details
    Publication Date: 2005-12-22
    Print ISSN: 1434-6044
    Electronic ISSN: 1434-6052
    Topics: Physics
    Published by Springer
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