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  • Springer Nature  (57)
  • American Association for the Advancement of Science (AAAS)  (22)
  • 2005-2009  (79)
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  • 11
    Publication Date: 2009-07-04
    Description: The accretion of matter onto a massive black hole is believed to feed the relativistic plasma jets found in many active galactic nuclei (AGN). Although some AGN accelerate particles to energies exceeding 10(12) electron volts and are bright sources of very-high-energy (VHE) gamma-ray emission, it is not yet known where the VHE emission originates. Here we report on radio and VHE observations of the radio galaxy Messier 87, revealing a period of extremely strong VHE gamma-ray flares accompanied by a strong increase of the radio flux from its nucleus. These results imply that charged particles are accelerated to very high energies in the immediate vicinity of the black hole.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉VERITAS Collaboration -- VLBA 43 GHz M87 Monitoring Team -- H.E.S.S. Collaboration -- MAGIC Collaboration -- Acciari, V A -- Aliu, E -- Arlen, T -- Bautista, M -- Beilicke, M -- Benbow, W -- Bradbury, S M -- Buckley, J H -- Bugaev, V -- Butt, Y -- Byrum, K -- Cannon, A -- Celik, O -- Cesarini, A -- Chow, Y C -- Ciupik, L -- Cogan, P -- Cui, W -- Dickherber, R -- Fegan, S J -- Finley, J P -- Fortin, P -- Fortson, L -- Furniss, A -- Gall, D -- Gillanders, G H -- Grube, J -- Guenette, R -- Gyuk, G -- Hanna, D -- Holder, J -- Horan, D -- Hui, C M -- Humensky, T B -- Imran, A -- Kaaret, P -- Karlsson, N -- Kieda, D -- Kildea, J -- Konopelko, A -- Krawczynski, H -- Krennrich, F -- Lang, M J -- LeBohec, S -- Maier, G -- McCann, A -- McCutcheon, M -- Millis, J -- Moriarty, P -- Ong, R A -- Otte, A N -- Pandel, D -- Perkins, J S -- Petry, D -- Pohl, M -- Quinn, J -- Ragan, K -- Reyes, L C -- Reynolds, P T -- Roache, E -- Rose, H J -- Schroedter, M -- Sembroski, G H -- Smith, A W -- Swordy, S P -- Theiling, M -- Toner, J A -- Varlotta, A -- Vincent, S -- Wakely, S P -- Ward, J E -- Weekes, T C -- Weinstein, A -- Williams, D A -- Wissel, S -- Wood, M -- Walker, R C -- Davies, F -- Hardee, P E -- Junor, W -- Ly, C -- Aharonian, F -- Akhperjanian, A G -- Anton, G -- Barres de Almeida, U -- Bazer-Bachi, A R -- Becherini, Y -- Behera, B -- Bernlohr, K -- Bochow, A -- Boisson, C -- Bolmont, J -- Borrel, V -- Brucker, J -- Brun, F -- Brun, P -- Buhler, R -- Bulik, T -- Busching, I -- Boutelier, T -- Chadwick, P M -- Charbonnier, A -- Chaves, R C G -- Cheesebrough, A -- Chounet, L-M -- Clapson, A C -- Coignet, G -- Dalton, M -- Daniel, M K -- Davids, I D -- Degrange, B -- Deil, C -- Dickinson, H J -- Djannati-Atai, A -- Domainko, W -- Drury, L O'C -- Dubois, F -- Dubus, G -- Dyks, J -- Dyrda, M -- Egberts, K -- Emmanoulopoulos, D -- Espigat, P -- Farnier, C -- Feinstein, F -- Fiasson, A -- Forster, A -- Fontaine, G -- Fussling, M -- Gabici, S -- Gallant, Y A -- Gerard, L -- Gerbig, D -- Giebels, B -- Glicenstein, J F -- Gluck, B -- Goret, P -- Gohring, D -- Hauser, D -- Hauser, M -- Heinz, S -- Heinzelmann, G -- Henri, G -- Hermann, G -- Hinton, J A -- Hoffmann, A -- Hofmann, W -- Holleran, M -- Hoppe, S -- Horns, D -- Jacholkowska, A -- de Jager, O C -- Jahn, C -- Jung, I -- Katarzynski, K -- Katz, U -- Kaufmann, S -- Kendziorra, E -- Kerschhaggl, M -- Khangulyan, D -- Khelifi, B -- Keogh, D -- Kluzniak, W -- Kneiske, T -- Komin, Nu -- Kosack, K -- Lamanna, G -- Lenain, J-P -- Lohse, T -- Marandon, V -- Martin, J M -- Martineau-Huynh, O -- Marcowith, A -- Maurin, D -- McComb, T J L -- Medina, M C -- Moderski, R -- Moulin, E -- Naumann-Godo, M -- de Naurois, M -- Nedbal, D -- Nekrassov, D -- Nicholas, B -- Niemiec, J -- Nolan, S J -- Ohm, S -- Olive, J-F -- de Ona Wilhelmi, E -- Orford, K J -- Ostrowski, M -- Panter, M -- Paz Arribas, M -- Pedaletti, G -- Pelletier, G -- Petrucci, P-O -- Pita, S -- Puhlhofer, G -- Punch, M -- Quirrenbach, A -- Raubenheimer, B C -- Raue, M -- Rayner, S M -- Renaud, M -- Rieger, F -- Ripken, J -- Rob, L -- Rosier-Lees, S -- Rowell, G -- Rudak, B -- Rulten, C B -- Ruppel, J -- Sahakian, V -- Santangelo, A -- Schlickeiser, R -- Schock, F M -- Schroder, R -- Schwanke, U -- Schwarzburg, S -- Schwemmer, S -- Shalchi, A -- Sikora, M -- Skilton, J L -- Sol, H -- Spangler, D -- Stawarz, L -- Steenkamp, R -- Stegmann, C -- Stinzing, F -- Superina, G -- Szostek, A -- Tam, P H -- Tavernet, J-P -- Terrier, R -- Tibolla, O -- Tluczykont, M -- van Eldik, C -- Vasileiadis, G -- Venter, C -- Venter, L -- Vialle, J P -- Vincent, P -- Vivier, M -- Volk, H J -- Volpe, F -- Wagner, S J -- Ward, M -- Zdziarski, A A -- Zech, A -- Anderhub, H -- Antonelli, L A -- Antoranz, P -- Backes, M -- Baixeras, C -- Balestra, S -- Barrio, J A -- Bastieri, D -- Becerra Gonzalez, J -- Becker, J K -- Bednarek, W -- Berger, K -- Bernardini, E -- Biland, A -- Bock, R K -- Bonnoli, G -- Bordas, P -- Borla Tridon, D -- Bosch-Ramon, V -- Bose, D -- Braun, I -- Bretz, T -- Britvitch, I -- Camara, M -- Carmona, E -- Commichau, S -- Contreras, J L -- Cortina, J -- Costado, M T -- Covino, S -- Curtef, V -- Dazzi, F -- De Angelis, A -- De Cea del Pozo, E -- Delgado Mendez, C -- De los Reyes, R -- De Lotto, B -- De Maria, M -- De Sabata, F -- Dominguez, A -- Dorner, D -- Doro, M -- Elsaesser, D -- Errando, M -- Ferenc, D -- Fernandez, E -- Firpo, R -- Fonseca, M V -- Font, L -- Galante, N -- Garcia Lopez, R J -- Garczarczyk, M -- Gaug, M -- Goebel, F -- Hadasch, D -- Hayashida, M -- Herrero, A -- Hildebrand, D -- Hohne-Monch, D -- Hose, J -- Hsu, C C -- Jogler, T -- Kranich, D -- La Barbera, A -- Laille, A -- Leonardo, E -- Lindfors, E -- Lombardi, S -- Longo, F -- Lopez, M -- Lorenz, E -- Majumdar, P -- Maneva, G -- Mankuzhiyil, N -- Mannheim, K -- Maraschi, L -- Mariotti, M -- Martinez, M -- Mazin, D -- Meucci, M -- Miranda, J M -- Mirzoyan, R -- Miyamoto, H -- Moldon, J -- Moles, M -- Moralejo, A -- Nieto, D -- Nilsson, K -- Ninkovic, J -- Oya, I -- Paoletti, R -- Paredes, J M -- Pasanen, M -- Pascoli, D -- Pauss, F -- Pegna, R G -- Perez-Torres, M A -- Persic, M -- Peruzzo, L -- Prada, F -- Prandini, E -- Puchades, N -- Reichardt, I -- Rhode, W -- Ribo, M -- Rico, J -- Rissi, M -- Robert, A -- Rugamer, S -- Saggion, A -- Saito, T Y -- Salvati, M -- Sanchez-Conde, M -- Satalecka, K -- Scalzotto, V -- Scapin, V -- Schweizer, T -- Shayduk, M -- Shore, S N -- Sidro, N -- Sierpowska-Bartosik, A -- Sillanpaa, A -- Sitarek, J -- Sobczynska, D -- Spanier, F -- Stamerra, A -- Stark, L S -- Takalo, L -- Tavecchio, F -- Temnikov, P -- Tescaro, D -- Teshima, M -- Torres, D F -- Turini, N -- Vankov, H -- Wagner, R M -- Zabalza, V -- Zandanel, F -- Zanin, R -- Zapatero, J -- New York, N.Y. -- Science. 2009 Jul 24;325(5939):444-8. doi: 10.1126/science.1175406. Epub 2009 Jul 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19574351" target="_blank"〉PubMed〈/a〉
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  • 12
    Publication Date: 2005-04-30
    Description: Geographical clines in genetic polymorphisms are widely used as evidence of climatic selection and are expected to shift with climate change. We show that the classic latitudinal cline in the alcohol dehydrogenase polymorphism of Drosophila melanogaster has shifted over 20 years in eastern coastal Australia. Southern high-latitude populations now have the genetic constitution of more northerly populations, equivalent to a shift of 4 degrees in latitude. A similar shift was detected for a genetically independent inversion polymorphism, whereas two other linked polymorphisms exhibiting weaker clinal patterns have remained relatively stable. These genetic changes are likely to reflect increasingly warmer and drier conditions and may serve as sensitive biomarkers for climate change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Umina, P A -- Weeks, A R -- Kearney, M R -- McKechnie, S W -- Hoffmann, A A -- New York, N.Y. -- Science. 2005 Apr 29;308(5722):691-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Environmental Stress and Adaptation Research, School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15860627" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Alcohol Dehydrogenase/*genetics ; Animals ; Australia ; Chromosome Inversion ; *Climate ; Drosophila melanogaster/enzymology/*genetics ; Gene Frequency ; Genes, Insect ; Geography ; Glycerolphosphate Dehydrogenase/genetics ; *Polymorphism, Genetic ; Temperature
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  • 13
    Publication Date: 2005-09-17
    Description: A small number of mammalian signaling pathways mediate a myriad of distinct physiological responses to diverse cellular stimuli. Temporal control of the signaling module that contains IkappaB kinase (IKK), its substrate inhibitor of NF-kappaB (IkappaB), and the key inflammatory transcription factor NF-kappaB can allow for selective gene activation. We have demonstrated that different inflammatory stimuli induce distinct IKK profiles, and we examined the underlying molecular mechanisms. Although tumor necrosis factor-alpha (TNFalpha)-induced IKK activity was rapidly attenuated by negative feedback, lipopolysaccharide (LPS) signaling and LPS-specific gene expression programs were dependent on a cytokine-mediated positive feedback mechanism. Thus, the distinct biological responses to LPS and TNFalpha depend on signaling pathway-specific mechanisms that regulate the temporal profile of IKK activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Werner, Shannon L -- Barken, Derren -- Hoffmann, Alexander -- GM071573/GM/NIGMS NIH HHS/ -- GM72024/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2005 Sep 16;309(5742):1857-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Signaling Systems Laboratory, Department of Chemistry and Biochemistry, 9500 Gilman Drive, Mailcode 0375, La Jolla, CA 92093-0375, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16166517" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; Autocrine Communication ; Cell Line ; Cells, Cultured ; Computer Simulation ; Cytokines/genetics ; Feedback, Physiological ; Gene Expression Profiling ; *Gene Expression Regulation ; I-kappa B Kinase ; I-kappa B Proteins/metabolism ; Lipopolysaccharides/immunology/metabolism/pharmacology ; Mice ; Models, Biological ; NF-kappa B/deficiency/metabolism ; Oligonucleotide Array Sequence Analysis ; Protein-Serine-Threonine Kinases/*metabolism ; Receptors, Immunologic/metabolism ; Signal Transduction ; Toll-Like Receptor 4 ; Transcriptional Activation ; Tumor Necrosis Factor-alpha/deficiency/immunology/metabolism/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 14
    Publication Date: 2005-10-15
    Description: During the past two decades, the use of DNA tests has revolutionized court proceedings in criminal and paternity cases. On the horizon is a new challenge for judges--whether to admit or compel genetic tests to confirm or predict genetic diseases and conditions in many more judicial contexts, e.g., decisions regarding culpability, sentencing, liability, causation, and damages. This Policy Forum reports on an empirical study of how judges would analyze these issues. The authors discuss the challenges these types of cases will bring to the court-room and suggest a series of questions that judges should consider in evaluating the need for genetic information in legal cases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoffmann, Diane E -- Rothenberg, Karen H -- New York, N.Y. -- Science. 2005 Oct 14;310(5746):241-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Maryland School of Law, Baltimore, MD 21210, USA. dhoffman@law.umaryland.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16224007" target="_blank"〉PubMed〈/a〉
    Keywords: Data Collection ; Genetic Testing/*legislation & jurisprudence ; Humans ; Jurisprudence
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  • 15
    Publication Date: 2005-04-02
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2821939/" 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/PMC2821939/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barken, Derren -- Wang, Chiaochun Joanne -- Kearns, Jeff -- Cheong, Raymond -- Hoffmann, Alexander -- Levchenko, Andre -- GM072024-01/GM/NIGMS NIH HHS/ -- P01 GM071862/GM/NIGMS NIH HHS/ -- P01 GM071862-01A20005/GM/NIGMS NIH HHS/ -- R01 GM071573/GM/NIGMS NIH HHS/ -- R01 GM071573-01A1/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2005 Apr 1;308(5718):52; author reply 52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Signaling Systems Laboratory, Department of Chemistry and Biochemistry and Bioinformatics Graduate Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0375, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15802586" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line, Tumor ; Cell Nucleus/metabolism ; Computer Simulation ; Cytoplasm/metabolism ; Feedback, Physiological ; *Gene Expression Regulation ; HeLa Cells ; Humans ; I-kappa B Proteins/metabolism ; Immunohistochemistry ; Models, Biological ; NF-kappa B/*metabolism ; Recombinant Fusion Proteins ; *Signal Transduction ; Transcription Factor RelA ; Transfection ; Tumor Necrosis Factor-alpha/pharmacology
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  • 16
    Publication Date: 2006-04-22
    Description: Global mineralogical mapping of Mars by the Observatoire pour la Mineralogie, l'Eau, les Glaces et l'Activite (OMEGA) instrument on the European Space Agency's Mars Express spacecraft provides new information on Mars' geological and climatic history. Phyllosilicates formed by aqueous alteration very early in the planet's history (the "phyllocian" era) are found in the oldest terrains; sulfates were formed in a second era (the "theiikian" era) in an acidic environment. Beginning about 3.5 billion years ago, the last era (the "siderikian") is dominated by the formation of anhydrous ferric oxides in a slow superficial weathering, without liquid water playing a major role across the planet.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bibring, Jean-Pierre -- Langevin, Yves -- Mustard, John F -- Poulet, Francois -- Arvidson, Raymond -- Gendrin, Aline -- Gondet, Brigitte -- Mangold, Nicolas -- Pinet, P -- Forget, F -- Berthe, Michel -- Gomez, Cecile -- Jouglet, Denis -- Soufflot, Alain -- Vincendon, Mathieu -- Combes, Michel -- Drossart, Pierre -- Encrenaz, Therese -- Fouchet, Thierry -- Merchiorri, Riccardo -- Belluci, Giancarlo -- Altieri, Francesca -- Formisano, Vittorio -- Capaccioni, Fabricio -- Cerroni, Pricilla -- Coradini, Angioletta -- Fonti, Sergio -- Korablev, Oleg -- Kottsov, Volodia -- Ignatiev, Nikolai -- Moroz, Vassili -- Titov, Dimitri -- Zasova, Ludmilla -- Loiseau, Damien -- Pinet, Patrick -- Doute, Sylvain -- Schmitt, Bernard -- Sotin, Christophe -- Hauber, Ernst -- Hoffmann, Harald -- Jaumann, Ralf -- Keller, Uwe -- Arvidson, Ray -- Duxbury, Tom -- Forget, Francois -- Neukum, G -- New York, N.Y. -- Science. 2006 Apr 21;312(5772):400-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut d'Astrophysique Spatiale (IAS), Batiment 121, 91405 Orsay Campus, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16627738" target="_blank"〉PubMed〈/a〉
    Keywords: Aluminum Silicates ; Atmosphere ; Carbon Dioxide ; Extraterrestrial Environment ; Ferric Compounds ; *Mars ; *Minerals ; Silicates ; Sulfates ; Time ; *Water
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  • 17
    Publication Date: 2006-07-11
    Description: The location of and threats to biodiversity are distributed unevenly, so prioritization is essential to minimize biodiversity loss. To address this need, biodiversity conservation organizations have proposed nine templates of global priorities over the past decade. Here, we review the concepts, methods, results, impacts, and challenges of these prioritizations of conservation practice within the theoretical irreplaceability/vulnerability framework of systematic conservation planning. Most of the templates prioritize highly irreplaceable regions; some are reactive (prioritizing high vulnerability), and others are proactive (prioritizing low vulnerability). We hope this synthesis improves understanding of these prioritization approaches and that it results in more efficient allocation of geographically flexible conservation funding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brooks, T M -- Mittermeier, R A -- da Fonseca, G A B -- Gerlach, J -- Hoffmann, M -- Lamoreux, J F -- Mittermeier, C G -- Pilgrim, J D -- Rodrigues, A S L -- New York, N.Y. -- Science. 2006 Jul 7;313(5783):58-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Conservation International, 1919 M Street, NW, Washington, DC 20036, USA. t.brooks@conservation.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16825561" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Conservation of Natural Resources/economics ; *Ecosystem ; Environment ; Financial Support ; Geography ; Humans ; Invertebrates ; Mammals ; Plants ; Population Density ; Vertebrates
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  • 18
    Publication Date: 2006-10-28
    Description: The detection of fast variations of the tera-electron volt (TeV) (10(12) eV) gamma-ray flux, on time scales of days, from the nearby radio galaxy M87 is reported. These variations are about 10 times as fast as those observed in any other wave band and imply a very compact emission region with a dimension similar to the Schwarzschild radius of the central black hole. We thus can exclude several other sites and processes of the gamma-ray production. The observations confirm that TeV gamma rays are emitted by extragalactic sources other than blazars, where jets are not relativistically beamed toward the observer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aharonian, F -- Akhperjanian, A G -- Bazer-Bachi, A R -- Beilicke, M -- Benbow, W -- Berge, D -- Bernlohr, K -- Boisson, C -- Bolz, O -- Borrel, V -- Braun, I -- Brown, A M -- Buhler, R -- Busching, I -- Carrigan, S -- Chadwick, P M -- Chounet, L-M -- Coignet, G -- Cornils, R -- Costamante, L -- Degrange, B -- Dickinson, H J -- Djannati-Atai, A -- Drury, L O'c -- Dubus, G -- Egberts, K -- Emmanoulopoulos, D -- Espigat, P -- Feinstein, F -- Ferrero, E -- Fiasson, A -- Fontaine, G -- Funk, Seb -- Funk, S -- Fussling, M -- Gallant, Y A -- Giebels, B -- Glicenstein, J F -- Goret, P -- Hadjichristidis, C -- Hauser, D -- Hauser, M -- Heinzelmann, G -- Henri, G -- Hermann, G -- Hinton, J A -- Hoffmann, A -- Hofmann, W -- Holleran, M -- Hoppe, S -- Horns, D -- Jacholkowska, A -- de Jager, O C -- Kendziorra, E -- Kerschhaggl, M -- Khelifi, B -- Komin, Nu -- Konopelko, A -- Kosack, K -- Lamanna, G -- Latham, I J -- Le Gallou, R -- Lemiere, A -- Lemoine-Goumard, M -- Lenain, J-P -- Lohse, T -- Martin, J M -- Martineau-Huynh, O -- Marcowith, A -- Masterson, C -- Maurin, G -- McComb, T J L -- Moulin, E -- de Naurois, M -- Nedbal, D -- Nolan, S J -- Noutsos, A -- Orford, K J -- Osborne, J L -- Ouchrif, M -- Panter, M -- Pelletier, G -- Pita, S -- Puhlhofer, G -- Punch, M -- Ranchon, S -- Raubenheimer, B C -- Raue, M -- Rayner, S M -- Reimer, A -- Ripken, J -- Rob, L -- Rolland, L -- Rosier-Lees, S -- Rowell, G -- Sahakian, V -- Santangelo, A -- Sauge, L -- Schlenker, S -- Schlickeiser, R -- Schroder, R -- Schwanke, U -- Schwarzburg, S -- Schwemmer, S -- Shalchi, A -- Sol, H -- Spangler, D -- Spanier, F -- Steenkamp, R -- Stegmann, C -- Superina, G -- Tam, P H -- Tavernet, J-P -- Terrier, R -- Tluczykont, M -- van Eldik, C -- Vasileiadis, G -- Venter, C -- Vialle, J P -- Vincent, P -- Volk, H J -- Wagner, S J -- Ward, M -- New York, N.Y. -- Science. 2006 Dec 1;314(5804):1424-7. Epub 2006 Oct 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur Kernphysik, Post Office Box 103980, D 69029 Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17068224" target="_blank"〉PubMed〈/a〉
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  • 19
    Publication Date: 2007-06-09
    Description: Root hairs and rhizoids are cells with rooting functions in land plants. We describe two basic helix-loop-helix transcription factors that control root hair development in the sporophyte (2n) of the angiosperm Arabidopsis thaliana and rhizoid development in the gametophytes (n) of the bryophyte Physcomitrella patens. The phylogeny of land plants supports the hypothesis that early land plants were bryophyte-like and possessed a dominant gametophyte and later the sporophyte rose to dominance. If this hypothesis is correct, our data suggest that the increase in morphological complexity of the sporophyte body in the Paleozoic resulted at least in part from the recruitment of regulatory genes from gametophyte to sporophyte.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Menand, Benoit -- Yi, Keke -- Jouannic, Stefan -- Hoffmann, Laurent -- Ryan, Eoin -- Linstead, Paul -- Schaefer, Didier G -- Dolan, Liam -- BBS/E/J/0000A218/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2007 Jun 8;316(5830):1477-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Developmental Biology, John Innes Centre, Norwich NR47UH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17556585" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/cytology/genetics/growth & development/*physiology ; Arabidopsis Proteins/genetics/*physiology ; Basic Helix-Loop-Helix Transcription Factors/genetics/*physiology ; Biological Evolution ; Bryopsida/cytology/genetics/growth & development/*physiology ; Diploidy ; Genes, Plant ; Haploidy ; Molecular Sequence Data ; Mutation ; Phylogeny ; Plant Epidermis/cytology/physiology ; Plant Proteins/genetics/physiology ; Plant Roots/*cytology/growth & development ; Plants, Genetically Modified
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  • 20
    Publication Date: 2008-11-22
    Description: More than 99% of the mass of the visible universe is made up of protons and neutrons. Both particles are much heavier than their quark and gluon constituents, and the Standard Model of particle physics should explain this difference. We present a full ab initio calculation of the masses of protons, neutrons, and other light hadrons, using lattice quantum chromodynamics. Pion masses down to 190 mega-electron volts are used to extrapolate to the physical point, with lattice sizes of approximately four times the inverse pion mass. Three lattice spacings are used for a continuum extrapolation. Our results completely agree with experimental observations and represent a quantitative confirmation of this aspect of the Standard Model with fully controlled uncertainties.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Durr, S -- Fodor, Z -- Frison, J -- Hoelbling, C -- Hoffmann, R -- Katz, S D -- Krieg, S -- Kurth, T -- Lellouch, L -- Lippert, T -- Szabo, K K -- Vulvert, G -- New York, N.Y. -- Science. 2008 Nov 21;322(5905):1224-7. doi: 10.1126/science.1163233.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉John von Neumann-Institut fur Computing, Deutsches Elektronen-Synchrotron Zeuthen, D-15738 Zeuthen and Forschungszentrum Julich, D-52425 Julich, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19023076" 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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