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  • Copernicus  (1,582)
  • American Association for the Advancement of Science (AAAS)  (531)
  • American Meteorological Society
  • 2015-2019
  • 2010-2014  (2,293)
  • 1955-1959
  • 2012  (2,293)
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  • 2015-2019
  • 2010-2014  (2,293)
  • 1955-1959
Year
  • 11
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    PTF 11kx: a type Ia supernova with a symbiotic nova progenitor (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-08-28
    Description: There is a consensus that type Ia supernovae (SNe Ia) arise from the thermonuclear explosion of white dwarf stars that accrete matter from a binary companion. However, direct observation of SN Ia progenitors is lacking, and the precise nature of the binary companion remains uncertain. A temporal series of high-resolution optical spectra of the SN Ia PTF 11kx reveals a complex circumstellar environment that provides an unprecedentedly detailed view of the progenitor system. Multiple shells of circumstellar material are detected, and the SN ejecta are seen to interact with circumstellar material starting 59 days after the explosion. These features are best described by a symbiotic nova progenitor, similar to RS Ophiuchi.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dilday, B -- Howell, D A -- Cenko, S B -- Silverman, J M -- Nugent, P E -- Sullivan, M -- Ben-Ami, S -- Bildsten, L -- Bolte, M -- Endl, M -- Filippenko, A V -- Gnat, O -- Horesh, A -- Hsiao, E -- Kasliwal, M M -- Kirkman, D -- Maguire, K -- Marcy, G W -- Moore, K -- Pan, Y -- Parrent, J T -- Podsiadlowski, P -- Quimby, R M -- Sternberg, A -- Suzuki, N -- Tytler, D R -- Xu, D -- Bloom, J S -- Gal-Yam, A -- Hook, I M -- Kulkarni, S R -- Law, N M -- Ofek, E O -- Polishook, D -- Poznanski, D -- New York, N.Y. -- Science. 2012 Aug 24;337(6097):942-5. doi: 10.1126/science.1219164.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA. bdilday@lcogt.net〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22923575" 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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  • 12
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    Vesta's shape and morphology (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-15
    Description: Vesta's surface is characterized by abundant impact craters, some with preserved ejecta blankets, large troughs extending around the equatorial region, enigmatic dark material, and widespread mass wasting, but as yet an absence of volcanic features. Abundant steep slopes indicate that impact-generated surface regolith is underlain by bedrock. Dawn observations confirm the large impact basin (Rheasilvia) at Vesta's south pole and reveal evidence for an earlier, underlying large basin (Veneneia). Vesta's geology displays morphological features characteristic of the Moon and terrestrial planets as well as those of other asteroids, underscoring Vesta's unique role as a transitional solar system body.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jaumann, R -- Williams, D A -- Buczkowski, D L -- Yingst, R A -- Preusker, F -- Hiesinger, H -- Schmedemann, N -- Kneissl, T -- Vincent, J B -- Blewett, D T -- Buratti, B J -- Carsenty, U -- Denevi, B W -- De Sanctis, M C -- Garry, W B -- Keller, H U -- Kersten, E -- Krohn, K -- Li, J-Y -- Marchi, S -- Matz, K D -- McCord, T B -- McSween, H Y -- Mest, S C -- Mittlefehldt, D W -- Mottola, S -- Nathues, A -- Neukum, G -- O'Brien, D P -- Pieters, C M -- Prettyman, T H -- Raymond, C A -- Roatsch, T -- Russell, C T -- Schenk, P -- Schmidt, B E -- Scholten, F -- Stephan, K -- Sykes, M V -- Tricarico, P -- Wagner, R -- Zuber, M T -- Sierks, H -- New York, N.Y. -- Science. 2012 May 11;336(6082):687-90. doi: 10.1126/science.1219122.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉German Aerospace Center, Institute of Planetary Research, Berlin, Germany. ralf.jaumann@dlr.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582254" 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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  • 13
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    Conservation. Challenges to the future conservation of the Antarctic (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chown, S L -- Lee, J E -- Hughes, K A -- Barnes, J -- Barrett, P J -- Bergstrom, D M -- Convey, P -- Cowan, D A -- Crosbie, K -- Dyer, G -- Frenot, Y -- Grant, S M -- Herr, D -- Kennicutt, M C 2nd -- Lamers, M -- Murray, A -- Possingham, H P -- Reid, K -- Riddle, M J -- Ryan, P G -- Sanson, L -- Shaw, J D -- Sparrow, M D -- Summerhayes, C -- Terauds, A -- Wall, D H -- New York, N.Y. -- Science. 2012 Jul 13;337(6091):158-9. doi: 10.1126/science.1222821.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Invasion Biology, Stellenbosch University, Matieland, South Africa. steven.chown@monash.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22798586" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antarctic Regions ; Climate Change ; *Conservation of Natural Resources/trends ; *Ecosystem ; Forecasting ; Human Activities ; Humans ; Public Policy ; Travel
    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
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    Rapamycin-induced insulin resistance is mediated by mTORC2 loss and uncoupled from longevity (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-03-31
    Description: Rapamycin, an inhibitor of mechanistic target of rapamycin complex 1 (mTORC1), extends the life spans of yeast, flies, and mice. Calorie restriction, which increases life span and insulin sensitivity, is proposed to function by inhibition of mTORC1, yet paradoxically, chronic administration of rapamycin substantially impairs glucose tolerance and insulin action. We demonstrate that rapamycin disrupted a second mTOR complex, mTORC2, in vivo and that mTORC2 was required for the insulin-mediated suppression of hepatic gluconeogenesis. Further, decreased mTORC1 signaling was sufficient to extend life span independently from changes in glucose homeostasis, as female mice heterozygous for both mTOR and mLST8 exhibited decreased mTORC1 activity and extended life span but had normal glucose tolerance and insulin sensitivity. Thus, mTORC2 disruption is an important mediator of the effects of rapamycin in vivo.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324089/" 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/PMC3324089/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lamming, Dudley W -- Ye, Lan -- Katajisto, Pekka -- Goncalves, Marcus D -- Saitoh, Maki -- Stevens, Deanna M -- Davis, James G -- Salmon, Adam B -- Richardson, Arlan -- Ahima, Rexford S -- Guertin, David A -- Sabatini, David M -- Baur, Joseph A -- 1F32AG032833-01A1/AG/NIA NIH HHS/ -- CA129105/CA/NCI NIH HHS/ -- F32 AG032833/AG/NIA NIH HHS/ -- P30DK19525/DK/NIDDK NIH HHS/ -- R01 CA129105/CA/NCI NIH HHS/ -- R01 CA129105-05/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Mar 30;335(6076):1638-43. doi: 10.1126/science.1215135.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22461615" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue, White/metabolism ; Animals ; Carrier Proteins/genetics/metabolism ; Female ; Gluconeogenesis ; Glucose/metabolism ; Glucose Clamp Technique ; Homeostasis ; Insulin/administration & dosage/blood ; *Insulin Resistance ; Liver/metabolism ; *Longevity ; Male ; Mice ; Mice, Inbred C57BL ; Multiprotein Complexes ; Muscle, Skeletal/metabolism ; Phosphorylation ; Proteins/antagonists & inhibitors/metabolism ; Proto-Oncogene Proteins c-akt/metabolism ; Signal Transduction ; Sirolimus/*pharmacology ; TOR Serine-Threonine Kinases/genetics/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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  • 15
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    Evolution and functional impact of rare coding variation from deep sequencing of human exomes (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-19
    Description: As a first step toward understanding how rare variants contribute to risk for complex diseases, we sequenced 15,585 human protein-coding genes to an average median depth of 111x in 2440 individuals of European (n = 1351) and African (n = 1088) ancestry. We identified over 500,000 single-nucleotide variants (SNVs), the majority of which were rare (86% with a minor allele frequency less than 0.5%), previously unknown (82%), and population-specific (82%). On average, 2.3% of the 13,595 SNVs each person carried were predicted to affect protein function of ~313 genes per genome, and ~95.7% of SNVs predicted to be functionally important were rare. This excess of rare functional variants is due to the combined effects of explosive, recent accelerated population growth and weak purifying selection. Furthermore, we show that large sample sizes will be required to associate rare variants with complex traits.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3708544/" 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/PMC3708544/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tennessen, Jacob A -- Bigham, Abigail W -- O'Connor, Timothy D -- Fu, Wenqing -- Kenny, Eimear E -- Gravel, Simon -- McGee, Sean -- Do, Ron -- Liu, Xiaoming -- Jun, Goo -- Kang, Hyun Min -- Jordan, Daniel -- Leal, Suzanne M -- Gabriel, Stacey -- Rieder, Mark J -- Abecasis, Goncalo -- Altshuler, David -- Nickerson, Deborah A -- Boerwinkle, Eric -- Sunyaev, Shamil -- Bustamante, Carlos D -- Bamshad, Michael J -- Akey, Joshua M -- Broad GO -- Seattle GO -- NHLBI Exome Sequencing Project -- R01 HG003229/HG/NHGRI NIH HHS/ -- RC2 HL-102923/HL/NHLBI NIH HHS/ -- RC2 HL-102924/HL/NHLBI NIH HHS/ -- RC2 HL-102925/HL/NHLBI NIH HHS/ -- RC2 HL-102926/HL/NHLBI NIH HHS/ -- RC2 HL-103010/HL/NHLBI NIH HHS/ -- RC2 HL102926/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2012 Jul 6;337(6090):64-9. doi: 10.1126/science.1219240. Epub 2012 May 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22604720" target="_blank"〉PubMed〈/a〉
    Keywords: African Americans/*genetics ; Disease/genetics ; European Continental Ancestry Group/*genetics ; *Evolution, Molecular ; *Exome ; Female ; Gene Frequency ; Genetic Association Studies ; Genetic Predisposition to Disease ; *Genetic Variation ; *Genome, Human ; *High-Throughput Nucleotide Sequencing ; Humans ; Male ; *Polymorphism, Single Nucleotide ; Population Growth ; Selection, Genetic
    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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    Electrically, chemically, and photonically powered torsional and tensile actuation of hybrid carbon nanotube yarn muscles (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-11-20
    Description: Artificial muscles are of practical interest, but few types have been commercially exploited. Typical problems include slow response, low strain and force generation, short cycle life, use of electrolytes, and low energy efficiency. We have designed guest-filled, twist-spun carbon nanotube yarns as electrolyte-free muscles that provide fast, high-force, large-stroke torsional and tensile actuation. More than a million torsional and tensile actuation cycles are demonstrated, wherein a muscle spins a rotor at an average 11,500 revolutions/minute or delivers 3% tensile contraction at 1200 cycles/minute. Electrical, chemical, or photonic excitation of hybrid yarns changes guest dimensions and generates torsional rotation and contraction of the yarn host. Demonstrations include torsional motors, contractile muscles, and sensors that capture the energy of the sensing process to mechanically actuate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lima, Marcio D -- Li, Na -- Jung de Andrade, Monica -- Fang, Shaoli -- Oh, Jiyoung -- Spinks, Geoffrey M -- Kozlov, Mikhail E -- Haines, Carter S -- Suh, Dongseok -- Foroughi, Javad -- Kim, Seon Jeong -- Chen, Yongsheng -- Ware, Taylor -- Shin, Min Kyoon -- Machado, Leonardo D -- Fonseca, Alexandre F -- Madden, John D W -- Voit, Walter E -- Galvao, Douglas S -- Baughman, Ray H -- New York, N.Y. -- Science. 2012 Nov 16;338(6109):928-32. doi: 10.1126/science.1226762.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23161994" target="_blank"〉PubMed〈/a〉
    Keywords: Absorption ; Electricity ; Hot Temperature ; Hydrogen/chemistry ; *Muscle Contraction ; Muscles/*chemistry/ultrastructure ; *Nanotubes, Carbon ; Optics and Photonics ; Photons ; *Tensile Strength
    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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    A systematic survey of loss-of-function variants in human protein-coding genes (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-02-22
    Description: Genome-sequencing studies indicate that all humans carry many genetic variants predicted to cause loss of function (LoF) of protein-coding genes, suggesting unexpected redundancy in the human genome. Here we apply stringent filters to 2951 putative LoF variants obtained from 185 human genomes to determine their true prevalence and properties. We estimate that human genomes typically contain ~100 genuine LoF variants with ~20 genes completely inactivated. We identify rare and likely deleterious LoF alleles, including 26 known and 21 predicted severe disease-causing variants, as well as common LoF variants in nonessential genes. We describe functional and evolutionary differences between LoF-tolerant and recessive disease genes and a method for using these differences to prioritize candidate genes found in clinical sequencing studies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3299548/" 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/PMC3299548/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacArthur, Daniel G -- Balasubramanian, Suganthi -- Frankish, Adam -- Huang, Ni -- Morris, James -- Walter, Klaudia -- Jostins, Luke -- Habegger, Lukas -- Pickrell, Joseph K -- Montgomery, Stephen B -- Albers, Cornelis A -- Zhang, Zhengdong D -- Conrad, Donald F -- Lunter, Gerton -- Zheng, Hancheng -- Ayub, Qasim -- DePristo, Mark A -- Banks, Eric -- Hu, Min -- Handsaker, Robert E -- Rosenfeld, Jeffrey A -- Fromer, Menachem -- Jin, Mike -- Mu, Xinmeng Jasmine -- Khurana, Ekta -- Ye, Kai -- Kay, Mike -- Saunders, Gary Ian -- Suner, Marie-Marthe -- Hunt, Toby -- Barnes, If H A -- Amid, Clara -- Carvalho-Silva, Denise R -- Bignell, Alexandra H -- Snow, Catherine -- Yngvadottir, Bryndis -- Bumpstead, Suzannah -- Cooper, David N -- Xue, Yali -- Romero, Irene Gallego -- 1000 Genomes Project Consortium -- Wang, Jun -- Li, Yingrui -- Gibbs, Richard A -- McCarroll, Steven A -- Dermitzakis, Emmanouil T -- Pritchard, Jonathan K -- Barrett, Jeffrey C -- Harrow, Jennifer -- Hurles, Matthew E -- Gerstein, Mark B -- Tyler-Smith, Chris -- 085532/Wellcome Trust/United Kingdom -- 090532/Wellcome Trust/United Kingdom -- 090532/Z/09/Z/Wellcome Trust/United Kingdom -- 098051/Wellcome Trust/United Kingdom -- BB/I02593X/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- RG/09/012/28096/British Heart Foundation/United Kingdom -- U54 HG003273/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2012 Feb 17;335(6070):823-8. doi: 10.1126/science.1215040.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Sanger Institute, Hinxton, UK. macarthur@atgu.mgh.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22344438" target="_blank"〉PubMed〈/a〉
    Keywords: Disease/genetics ; Gene Expression ; Gene Frequency ; *Genetic Variation ; *Genome, Human ; Humans ; Phenotype ; Polymorphism, Single Nucleotide ; Proteins/*genetics ; Selection, Genetic
    Print ISSN: 0036-8075
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  • 18
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    A reconciled estimate of ice-sheet mass balance (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-12-01
    Description: We combined an ensemble of satellite altimetry, interferometry, and gravimetry data sets using common geographical regions, time intervals, and models of surface mass balance and glacial isostatic adjustment to estimate the mass balance of Earth's polar ice sheets. We find that there is good agreement between different satellite methods--especially in Greenland and West Antarctica--and that combining satellite data sets leads to greater certainty. Between 1992 and 2011, the ice sheets of Greenland, East Antarctica, West Antarctica, and the Antarctic Peninsula changed in mass by -142 +/- 49, +14 +/- 43, -65 +/- 26, and -20 +/- 14 gigatonnes year(-1), respectively. Since 1992, the polar ice sheets have contributed, on average, 0.59 +/- 0.20 millimeter year(-1) to the rate of global sea-level rise.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shepherd, Andrew -- Ivins, Erik R -- A, Geruo -- Barletta, Valentina R -- Bentley, Mike J -- Bettadpur, Srinivas -- Briggs, Kate H -- Bromwich, David H -- Forsberg, Rene -- Galin, Natalia -- Horwath, Martin -- Jacobs, Stan -- Joughin, Ian -- King, Matt A -- Lenaerts, Jan T M -- Li, Jilu -- Ligtenberg, Stefan R M -- Luckman, Adrian -- Luthcke, Scott B -- McMillan, Malcolm -- Meister, Rakia -- Milne, Glenn -- Mouginot, Jeremie -- Muir, Alan -- Nicolas, Julien P -- Paden, John -- Payne, Antony J -- Pritchard, Hamish -- Rignot, Eric -- Rott, Helmut -- Sorensen, Louise Sandberg -- Scambos, Ted A -- Scheuchl, Bernd -- Schrama, Ernst J O -- Smith, Ben -- Sundal, Aud V -- van Angelen, Jan H -- van de Berg, Willem J -- van den Broeke, Michiel R -- Vaughan, David G -- Velicogna, Isabella -- Wahr, John -- Whitehouse, Pippa L -- Wingham, Duncan J -- Yi, Donghui -- Young, Duncan -- Zwally, H Jay -- New York, N.Y. -- Science. 2012 Nov 30;338(6111):1183-9. doi: 10.1126/science.1228102.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK. ashepherd@leeds.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23197528" target="_blank"〉PubMed〈/a〉
    Keywords: Antarctic Regions ; *Climate Change ; Geographic Information Systems ; Greenland ; *Ice Cover
    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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    Financial costs of meeting global biodiversity conservation targets: current spending and unmet needs (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-10-16
    Description: World governments have committed to halting human-induced extinctions and safeguarding important sites for biodiversity by 2020, but the financial costs of meeting these targets are largely unknown. We estimate the cost of reducing the extinction risk of all globally threatened bird species (by 〉/=1 International Union for Conservation of Nature Red List category) to be U.S. $0.875 to $1.23 billion annually over the next decade, of which 12% is currently funded. Incorporating threatened nonavian species increases this total to U.S. $3.41 to $4.76 billion annually. We estimate that protecting and effectively managing all terrestrial sites of global avian conservation significance (11,731 Important Bird Areas) would cost U.S. $65.1 billion annually. Adding sites for other taxa increases this to U.S. $76.1 billion annually. Meeting these targets will require conservation funding to increase by at least an order of magnitude.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCarthy, Donal P -- Donald, Paul F -- Scharlemann, Jorn P W -- Buchanan, Graeme M -- Balmford, Andrew -- Green, Jonathan M H -- Bennun, Leon A -- Burgess, Neil D -- Fishpool, Lincoln D C -- Garnett, Stephen T -- Leonard, David L -- Maloney, Richard F -- Morling, Paul -- Schaefer, H Martin -- Symes, Andy -- Wiedenfeld, David A -- Butchart, Stuart H M -- New York, N.Y. -- Science. 2012 Nov 16;338(6109):946-9. doi: 10.1126/science.1229803. Epub 2012 Oct 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉BirdLife International, Wellbrook Court, Cambridge CB3 0NA, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23065904" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Birds ; *Capital Financing ; Conservation of Natural Resources/*economics ; Costs and Cost Analysis ; *Extinction, Biological ; Humans
    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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    Shear-activated nanotherapeutics for drug targeting to obstructed blood vessels (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-07-07
    Description: Obstruction of critical blood vessels due to thrombosis or embolism is a leading cause of death worldwide. Here, we describe a biomimetic strategy that uses high shear stress caused by vascular narrowing as a targeting mechanism--in the same way platelets do--to deliver drugs to obstructed blood vessels. Microscale aggregates of nanoparticles were fabricated to break up into nanoscale components when exposed to abnormally high fluid shear stress. When coated with tissue plasminogen activator and administered intravenously in mice, these shear-activated nanotherapeutics induce rapid clot dissolution in a mesenteric injury model, restore normal flow dynamics, and increase survival in an otherwise fatal mouse pulmonary embolism model. This biophysical strategy for drug targeting, which lowers required doses and minimizes side effects while maximizing drug efficacy, offers a potential new approach for treatment of life-threatening diseases that result from acute vascular occlusion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Korin, Netanel -- Kanapathipillai, Mathumai -- Matthews, Benjamin D -- Crescente, Marilena -- Brill, Alexander -- Mammoto, Tadanori -- Ghosh, Kaustabh -- Jurek, Samuel -- Bencherif, Sidi A -- Bhatta, Deen -- Coskun, Ahmet U -- Feldman, Charles L -- Wagner, Denisa D -- Ingber, Donald E -- New York, N.Y. -- Science. 2012 Aug 10;337(6095):738-42. doi: 10.1126/science.1217815. Epub 2012 Jul 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22767894" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomimetic Materials ; Blood Circulation ; Drug Delivery Systems/*methods ; Fibrinolytic Agents/*administration & dosage ; Hemodynamics ; Hemorheology ; Lactic Acid ; Male ; Mesenteric Arteries ; Mesenteric Vascular Occlusion/*drug therapy ; Mice ; Mice, Inbred C57BL ; Microfluidic Analytical Techniques ; Models, Anatomic ; *Nanoparticles ; Polyglycolic Acid ; Pulmonary Embolism/*drug therapy ; Stress, Mechanical ; Thrombosis/*drug therapy/prevention & control ; Tissue Plasminogen Activator/*administration & dosage
    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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