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  • American Association for the Advancement of Science (AAAS)  (555)
  • 2010-2014
  • 2005-2009  (555)
  • 2006  (555)
  • 11
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    Losartan, an AT1 antagonist, prevents aortic aneurysm in a mouse model of Marfan syndrome (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-04-08
    Description: Aortic aneurysm and dissection are manifestations of Marfan syndrome (MFS), a disorder caused by mutations in the gene that encodes fibrillin-1. Selected manifestations of MFS reflect excessive signaling by the transforming growth factor-beta (TGF-beta) family of cytokines. We show that aortic aneurysm in a mouse model of MFS is associated with increased TGF-beta signaling and can be prevented by TGF-beta antagonists such as TGF-beta-neutralizing antibody or the angiotensin II type 1 receptor (AT1) blocker, losartan. AT1 antagonism also partially reversed noncardiovascular manifestations of MFS, including impaired alveolar septation. These data suggest that losartan, a drug already in clinical use for hypertension, merits investigation as a therapeutic strategy for patients with MFS and has the potential to prevent the major life-threatening manifestation of this disorder.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1482474/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1482474/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Habashi, Jennifer P -- Judge, Daniel P -- Holm, Tammy M -- Cohn, Ronald D -- Loeys, Bart L -- Cooper, Timothy K -- Myers, Loretha -- Klein, Erin C -- Liu, Guosheng -- Calvi, Carla -- Podowski, Megan -- Neptune, Enid R -- Halushka, Marc K -- Bedja, Djahida -- Gabrielson, Kathleen -- Rifkin, Daniel B -- Carta, Luca -- Ramirez, Francesco -- Huso, David L -- Dietz, Harry C -- K08 HL067056/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2006 Apr 7;312(5770):117-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16601194" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic beta-Antagonists/administration & dosage/therapeutic use ; Angiotensin II Type 1 Receptor Blockers/administration & dosage/*therapeutic use ; Animals ; Antibodies/immunology ; Aorta/pathology ; Aortic Aneurysm/etiology/*prevention & control ; *Disease Models, Animal ; Elastic Tissue/pathology ; Female ; Losartan/administration & dosage/*therapeutic use ; Lung/pathology ; Lung Diseases/drug therapy/pathology ; Marfan Syndrome/complications/*drug therapy/metabolism/pathology ; Mice ; Microfilament Proteins/genetics ; Mutation ; Neutralization Tests ; Pregnancy ; Pregnancy Complications/drug therapy ; Propranolol/administration & dosage/therapeutic use ; Pulmonary Alveoli/pathology ; Receptor, Angiotensin, Type 1/metabolism ; Signal Transduction ; Transforming Growth Factor beta/antagonists & inhibitors/immunology/*metabolism
    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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  • 12
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    Mineralogy and petrology of comet 81P/Wild 2 nucleus samples (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-12-16
    Description: The bulk of the comet 81P/Wild 2 (hereafter Wild 2) samples returned to Earth by the Stardust spacecraft appear to be weakly constructed mixtures of nanometer-scale grains, with occasional much larger (over 1 micrometer) ferromagnesian silicates, Fe-Ni sulfides, Fe-Ni metal, and accessory phases. The very wide range of olivine and low-Ca pyroxene compositions in comet Wild 2 requires a wide range of formation conditions, probably reflecting very different formation locations in the protoplanetary disk. The restricted compositional ranges of Fe-Ni sulfides, the wide range for silicates, and the absence of hydrous phases indicate that comet Wild 2 experienced little or no aqueous alteration. Less abundant Wild 2 materials include a refractory particle, whose presence appears to require radial transport in the early protoplanetary disk.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zolensky, Michael E -- Zega, Thomas J -- Yano, Hajime -- Wirick, Sue -- Westphal, Andrew J -- Weisberg, Mike K -- Weber, Iris -- Warren, Jack L -- Velbel, Michael A -- Tsuchiyama, Akira -- Tsou, Peter -- Toppani, Alice -- Tomioka, Naotaka -- Tomeoka, Kazushige -- Teslich, Nick -- Taheri, Mitra -- Susini, Jean -- Stroud, Rhonda -- Stephan, Thomas -- Stadermann, Frank J -- Snead, Christopher J -- Simon, Steven B -- Simionovici, Alexandre -- See, Thomas H -- Robert, Francois -- Rietmeijer, Frans J M -- Rao, William -- Perronnet, Murielle C -- Papanastassiou, Dimitri A -- Okudaira, Kyoko -- Ohsumi, Kazumasa -- Ohnishi, Ichiro -- Nakamura-Messenger, Keiko -- Nakamura, Tomoki -- Mostefaoui, Smail -- Mikouchi, Takashi -- Meibom, Anders -- Matrajt, Graciela -- Marcus, Matthew A -- Leroux, Hugues -- Lemelle, Laurence -- Le, Loan -- Lanzirotti, Antonio -- Langenhorst, Falko -- Krot, Alexander N -- Keller, Lindsay P -- Kearsley, Anton T -- Joswiak, David -- Jacob, Damien -- Ishii, Hope -- Harvey, Ralph -- Hagiya, Kenji -- Grossman, Lawrence -- Grossman, Jeffrey N -- Graham, Giles A -- Gounelle, Matthieu -- Gillet, Philippe -- Genge, Matthew J -- Flynn, George -- Ferroir, Tristan -- Fallon, Stewart -- Fakra, Sirine -- Ebel, Denton S -- Dai, Zu Rong -- Cordier, Patrick -- Clark, Benton -- Chi, Miaofang -- Butterworth, Anna L -- Brownlee, Donald E -- Bridges, John C -- Brennan, Sean -- Brearley, Adrian -- Bradley, John P -- Bleuet, Pierre -- Bland, Phil A -- Bastien, Ron -- New York, N.Y. -- Science. 2006 Dec 15;314(5806):1735-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Astromaterials Research and Exploration Science, NASA Johnson Space Center, Houston, TX 77058, USA. michael.e.zolensky@nasa.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17170295" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 13
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    Biodiversity. Confronting amphibian declines and extinctions (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-07-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mendelson, Joseph R 3rd -- Lips, Karen R -- Gagliardo, Ronald W -- Rabb, George B -- Collins, James P -- Diffendorfer, James E -- Daszak, Peter -- Ibanez D, Roberto -- Zippel, Kevin C -- Lawson, Dwight P -- Wright, Kevin M -- Stuart, Simon N -- Gascon, Claude -- da Silva, Helio R -- Burrowes, Patricia A -- Joglar, Rafael L -- La Marca, Enrique -- Lotters, Stefan -- du Preez, Louis H -- Weldon, Che -- Hyatt, Alex -- Rodriguez-Mahecha, Jose Vicente -- Hunt, Susan -- Robertson, Helen -- Lock, Brad -- Raxworthy, Christopher J -- Frost, Darrel R -- Lacy, Robert C -- Alford, Ross A -- Campbell, Jonathan A -- Parra-Olea, Gabriela -- Bolanos, Federico -- Domingo, Jose Joaquin Calvo -- Halliday, Tim -- Murphy, James B -- Wake, Marvalee H -- Coloma, Luis A -- Kuzmin, Sergius L -- Price, Mark Stanley -- Howell, Kim M -- Lau, Michael -- Pethiyagoda, Rohan -- Boone, Michelle -- Lannoo, Michael J -- Blaustein, Andrew R -- Dobson, Andy -- Griffiths, Richard A -- Crump, Martha L -- Wake, David B -- Brodie, Edmund D Jr -- New York, N.Y. -- Science. 2006 Jul 7;313(5783):48.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Zoo Atlanta, 800 Cherokee Avenue SE, Atlanta, GA 30315, USA. jmendelson@zooatlanta.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16825553" target="_blank"〉PubMed〈/a〉
    Keywords: *Amphibians ; Animals ; *Biodiversity ; Chytridiomycota ; Conservation of Natural Resources ; Ecosystem ; *International Agencies ; International Cooperation ; Mycoses/veterinary ; Population Dynamics
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 14
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    Elemental compositions of comet 81P/Wild 2 samples collected by Stardust (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-12-16
    Description: We measured the elemental compositions of material from 23 particles in aerogel and from residue in seven craters in aluminum foil that was collected during passage of the Stardust spacecraft through the coma of comet 81P/Wild 2. These particles are chemically heterogeneous at the largest size scale analyzed ( approximately 180 ng). The mean elemental composition of this Wild 2 material is consistent with the CI meteorite composition, which is thought to represent the bulk composition of the solar system, for the elements Mg, Si, Mn, Fe, and Ni to 35%, and for Ca and Ti to 60%. The elements Cu, Zn, and Ga appear enriched in this Wild 2 material, which suggests that the CI meteorites may not represent the solar system composition for these moderately volatile minor elements.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Flynn, George J -- Bleuet, Pierre -- Borg, Janet -- Bradley, John P -- Brenker, Frank E -- Brennan, Sean -- Bridges, John -- Brownlee, Don E -- Bullock, Emma S -- Burghammer, Manfred -- Clark, Benton C -- Dai, Zu Rong -- Daghlian, Charles P -- Djouadi, Zahia -- Fakra, Sirine -- Ferroir, Tristan -- Floss, Christine -- Franchi, Ian A -- Gainsforth, Zack -- Gallien, Jean-Paul -- Gillet, Philippe -- Grant, Patrick G -- Graham, Giles A -- Green, Simon F -- Grossemy, Faustine -- Heck, Philipp R -- Herzog, Gregory F -- Hoppe, Peter -- Horz, Friedrich -- Huth, Joachim -- Ignatyev, Konstantin -- Ishii, Hope A -- Janssens, Koen -- Joswiak, David -- Kearsley, Anton T -- Khodja, Hicham -- Lanzirotti, Antonio -- Leitner, Jan -- Lemelle, Laurence -- Leroux, Hugues -- Luening, Katharina -- Macpherson, Glenn J -- Marhas, Kuljeet K -- Marcus, Matthew A -- Matrajt, Graciela -- Nakamura, Tomoki -- Nakamura-Messenger, Keiko -- Nakano, Tsukasa -- Newville, Matthew -- Papanastassiou, Dimitri A -- Pianetta, Piero -- Rao, William -- Riekel, Christian -- Rietmeijer, Frans J M -- Rost, Detlef -- Schwandt, Craig S -- See, Thomas H -- Sheffield-Parker, Julie -- Simionovici, Alexandre -- Sitnitsky, Ilona -- Snead, Christopher J -- Stadermann, Frank J -- Stephan, Thomas -- Stroud, Rhonda M -- Susini, Jean -- Suzuki, Yoshio -- Sutton, Stephen R -- Taylor, Susan -- Teslich, Nick -- Troadec, D -- Tsou, Peter -- Tsuchiyama, Akira -- Uesugi, Kentaro -- Vekemans, Bart -- Vicenzi, Edward P -- Vincze, Laszlo -- Westphal, Andrew J -- Wozniakiewicz, Penelope -- Zinner, Ernst -- Zolensky, Michael E -- New York, N.Y. -- Science. 2006 Dec 15;314(5806):1731-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, State University of New York at Plattsburgh, 101 Broad Street, Plattsburgh, NY 12901, USA. george.flynn@plattsburgh.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17170294" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 15
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    Exposed water ice deposits on the surface of comet 9P/Tempel 1 (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-02-04
    Description: We report the direct detection of solid water ice deposits exposed on the surface of comet 9P/Tempel 1, as observed by the Deep Impact mission. Three anomalously colored areas are shown to include water ice on the basis of their near-infrared spectra, which include diagnostic water ice absorptions at wavelengths of 1.5 and 2.0 micrometers. These absorptions are well modeled as a mixture of nearby non-ice regions and 3 to 6% water ice particles 10 to 50 micrometers in diameter. These particle sizes are larger than those ejected during the impact experiment, which suggests that the surface deposits are loose aggregates. The total area of exposed water ice is substantially less than that required to support the observed ambient outgassing from the comet, which likely has additional source regions below the surface.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sunshine, J M -- A'Hearn, M F -- Groussin, O -- Li, J-Y -- Belton, M J S -- Delamere, W A -- Kissel, J -- Klaasen, K P -- McFadden, L A -- Meech, K J -- Melosh, H J -- Schultz, P H -- Thomas, P C -- Veverka, J -- Yeomans, D K -- Busko, I C -- Desnoyer, M -- Farnham, T L -- Feaga, L M -- Hampton, D L -- Lindler, D J -- Lisse, C M -- Wellnitz, D D -- New York, N.Y. -- Science. 2006 Mar 10;311(5766):1453-5. Epub 2006 Feb 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Science Applications International Corporation (SAIC), Chantilly, VA 20151, USA. sunshinej@saic.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16456037" target="_blank"〉PubMed〈/a〉
    Keywords: Ice/*analysis ; *Meteoroids ; Spectrophotometry, Infrared
    Print ISSN: 0036-8075
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  • 16
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    Recent Greenland ice mass loss by drainage system from satellite gravity observations (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-10-21
    Description: Mass changes of the Greenland Ice Sheet resolved by drainage system regions were derived from a local mass concentration analysis of NASA-Deutsches Zentrum fur Luftund Raumfahrt Gravity Recovery and Climate Experiment (GRACE mission) observations. From 2003 to 2005, the ice sheet lost 101 +/- 16 gigaton/year, with a gain of 54 gigaton/year above 2000 meters and a loss of 155 gigaton/year at lower elevations. The lower elevations show a large seasonal cycle, with mass losses during summer melting followed by gains from fall through spring. The overall rate of loss reflects a considerable change in trend (-113 +/- 17 gigaton/year) from a near balance during the 1990s but is smaller than some other recent estimates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luthcke, S B -- Zwally, H J -- Abdalati, W -- Rowlands, D D -- Ray, R D -- Nerem, R S -- Lemoine, F G -- McCarthy, J J -- Chinn, D S -- New York, N.Y. -- Science. 2006 Nov 24;314(5803):1286-9. Epub 2006 Oct 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Planetary Geodynamics Laboratory, Code 698, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA. Scott.B.Luthcke@nasa.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17053112" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 17
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    Netrins promote developmental and therapeutic angiogenesis (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-07-01
    Description: Axonal guidance and vascular patterning share several guidance cues, including proteins in the netrin family. We demonstrate that netrins stimulate proliferation, migration, and tube formation of human endothelial cells in vitro and that this stimulation is independent of known netrin receptors. Suppression of netrin1a messenger RNA in zebrafish inhibits vascular sprouting, implying a proangiogenic role for netrins during vertebrate development. We also show that netrins accelerate neovascularization in an in vivo model of ischemia and that they reverse neuropathy and vasculopathy in a diabetic murine model. We propose that the attractive vascular and neural guidance functions of netrins offer a unique therapeutic potential.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2577078/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2577078/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, Brent D -- Ii, Masaaki -- Park, Kye Won -- Suli, Arminda -- Sorensen, Lise K -- Larrieu-Lahargue, Frederic -- Urness, Lisa D -- Suh, Wonhee -- Asai, Jun -- Kock, Gerhardus A H -- Thorne, Tina -- Silver, Marcy -- Thomas, Kirk R -- Chien, Chi-Bin -- Losordo, Douglas W -- Li, Dean Y -- R01 HL068873/HL/NHLBI NIH HHS/ -- R01 HL077671/HL/NHLBI NIH HHS/ -- R01 HL077671-03/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2006 Aug 4;313(5787):640-4. Epub 2006 Jun 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Human Molecular Biology and Genetics, University of Utah, Salt Lake City, UT 84112, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16809490" target="_blank"〉PubMed〈/a〉
    Keywords: Angiogenesis Inducing Agents ; Animals ; Cell Line ; Cell Movement ; Chemotaxis ; DNA, Complementary ; Diabetic Angiopathies/therapy ; Diabetic Neuropathies/therapy ; Embryo, Nonmammalian ; Endothelial Cells/*physiology ; Endothelium, Vascular/cytology ; Genetic Therapy ; Humans ; Ischemia/drug therapy ; Mice ; Muscle, Skeletal/blood supply ; *Neovascularization, Physiologic ; Nerve Growth Factors/genetics/pharmacology/*physiology ; Neural Conduction ; Receptors, Cell Surface/physiology ; Tumor Suppressor Proteins/genetics/pharmacology/*physiology ; Vascular Endothelial Growth Factor A/therapeutic use ; Zebrafish
    Print ISSN: 0036-8075
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  • 18
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    Insignificant change in Antarctic snowfall since the International Geophysical Year (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-08-12
    Description: Antarctic snowfall exhibits substantial variability over a range of time scales, with consequent impacts on global sea level and the mass balance of the ice sheets. To assess how snowfall has affected the thickness of the ice sheets in Antarctica and to provide an extended perspective, we derived a 50-year time series of snowfall accumulation over the continent by combining model simulations and observations primarily from ice cores. There has been no statistically significant change in snowfall since the 1950s, indicating that Antarctic precipitation is not mitigating global sea level rise as expected, despite recent winter warming of the overlying atmosphere.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Monaghan, Andrew J -- Bromwich, David H -- Fogt, Ryan L -- Wang, Sheng-Hung -- Mayewski, Paul A -- Dixon, Daniel A -- Ekaykin, Alexey -- Frezzotti, Massimo -- Goodwin, Ian -- Isaksson, Elisabeth -- Kaspari, Susan D -- Morgan, Vin I -- Oerter, Hans -- Van Ommen, Tas D -- Van der Veen, Cornelius J -- Wen, Jiahong -- New York, N.Y. -- Science. 2006 Aug 11;313(5788):827-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Polar Meteorology Group, Byrd Polar Research Center, Ohio State University, Columbus, OH 43210, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16902135" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 19
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    Drilling to gabbro in intact ocean crust (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-04-22
    Description: Sampling an intact sequence of oceanic crust through lavas, dikes, and gabbros is necessary to advance the understanding of the formation and evolution of crust formed at mid-ocean ridges, but it has been an elusive goal of scientific ocean drilling for decades. Recent drilling in the eastern Pacific Ocean in Hole 1256D reached gabbro within seismic layer 2, 1157 meters into crust formed at a superfast spreading rate. The gabbros are the crystallized melt lenses that formed beneath a mid-ocean ridge. The depth at which gabbro was reached confirms predictions extrapolated from seismic experiments at modern mid-ocean ridges: Melt lenses occur at shallower depths at faster spreading rates. The gabbros intrude metamorphosed sheeted dikes and have compositions similar to the overlying lavas, precluding formation of the cumulate lower oceanic crust from melt lenses so far penetrated by Hole 1256D.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, Douglas S -- Teagle, Damon A H -- Alt, Jeffrey C -- Banerjee, Neil R -- Umino, Susumu -- Miyashita, Sumio -- Acton, Gary D -- Anma, Ryo -- Barr, Samantha R -- Belghoul, Akram -- Carlut, Julie -- Christie, David M -- Coggon, Rosalind M -- Cooper, Kari M -- Cordier, Carole -- Crispini, Laura -- Durand, Sedelia Rodriguez -- Einaudi, Florence -- Galli, Laura -- Gao, Yongjun -- Geldmacher, Jorg -- Gilbert, Lisa A -- Hayman, Nicholas W -- Herrero-Bervera, Emilio -- Hirano, Nobuo -- Holter, Sara -- Ingle, Stephanie -- Jiang, Shijun -- Kalberkamp, Ulrich -- Kerneklian, Marcie -- Koepke, Jurgen -- Laverne, Christine -- Vasquez, Haroldo L Lledo -- Maclennan, John -- Morgan, Sally -- Neo, Natsuki -- Nichols, Holly J -- Park, Sung-Hyun -- Reichow, Marc K -- Sakuyama, Tetsuya -- Sano, Takashi -- Sandwell, Rachel -- Scheibner, Birgit -- Smith-Duque, Chris E -- Swift, Stephen A -- Tartarotti, Paola -- Tikku, Anahita A -- Tominaga, Masako -- Veloso, Eugenio A -- Yamasaki, Toru -- Yamazaki, Shusaku -- Ziegler, Christa -- New York, N.Y. -- Science. 2006 May 19;312(5776):1016-20. Epub 2006 Apr 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Science and Marine Science Institute, University of California, Santa Barbara, CA 93106, USA. dwilson@geol.ucsb.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16627698" target="_blank"〉PubMed〈/a〉
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  • 20
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    Probing nanoscale ferroelectricity by ultraviolet Raman spectroscopy (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-09-16
    Description: We demonstrated that ultraviolet Raman spectroscopy is an effective technique to measure the transition temperature (Tc) in ferroelectric ultrathin films and superlattices. We showed that one-unit-cell-thick BaTiO3 layers in BaTiO3/SrTiO3 superlattices are not only ferroelectric (with Tc as high as 250 kelvin) but also polarize the quantum paraelectric SrTiO3 layers adjacent to them. Tc was tuned by approximately 500 kelvin by varying the thicknesses of the BaTiO3 and SrTiO3 layers, revealing the essential roles of electrical and mechanical boundary conditions for nanoscale ferroelectricity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tenne, D A -- Bruchhausen, A -- Lanzillotti-Kimura, N D -- Fainstein, A -- Katiyar, R S -- Cantarero, A -- Soukiassian, A -- Vaithyanathan, V -- Haeni, J H -- Tian, W -- Schlom, D G -- Choi, K J -- Kim, D M -- Eom, C B -- Sun, H P -- Pan, X Q -- Li, Y L -- Chen, L Q -- Jia, Q X -- Nakhmanson, S M -- Rabe, K M -- Xi, X X -- New York, N.Y. -- Science. 2006 Sep 15;313(5793):1614-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, Pennsylvania State University, University Park, PA 16802, USA. dmitritenne@boisestate.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16973874" target="_blank"〉PubMed〈/a〉
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