Search Results - (Author, Cooperation:D. Levy)

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  1. 1
    Staff View
    Publication Date:
    2014-11-05
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Child ; Child Development Disorders, Pervasive/*genetics ; Cluster Analysis ; Exome/genetics ; Female ; Genes ; Genetic Predisposition to Disease/*genetics ; Humans ; Intelligence Tests ; Male ; Mutation/*genetics ; Open Reading Frames/*genetics ; Reproducibility of Results
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    G. B. Ehret ; P. B. Munroe ; K. M. Rice ; M. Bochud ; A. D. Johnson ; D. I. Chasman ; A. V. Smith ; M. D. Tobin ; G. C. Verwoert ; S. J. Hwang ; V. Pihur ; P. Vollenweider ; P. F. O'Reilly ; N. Amin ; J. L. Bragg-Gresham ; A. Teumer ; N. L. Glazer ; L. Launer ; J. H. Zhao ; Y. Aulchenko ; S. Heath ; S. Sober ; A. Parsa ; J. Luan ; P. Arora ; A. Dehghan ; F. Zhang ; G. Lucas ; A. A. Hicks ; A. U. Jackson ; J. F. Peden ; T. Tanaka ; S. H. Wild ; I. Rudan ; W. Igl ; Y. Milaneschi ; A. N. Parker ; C. Fava ; J. C. Chambers ; E. R. Fox ; M. Kumari ; M. J. Go ; P. van der Harst ; W. H. Kao ; M. Sjogren ; D. G. Vinay ; M. Alexander ; Y. Tabara ; S. Shaw-Hawkins ; P. H. Whincup ; Y. Liu ; G. Shi ; J. Kuusisto ; B. Tayo ; M. Seielstad ; X. Sim ; K. D. Nguyen ; T. Lehtimaki ; G. Matullo ; Y. Wu ; T. R. Gaunt ; N. C. Onland-Moret ; M. N. Cooper ; C. G. Platou ; E. Org ; R. Hardy ; S. Dahgam ; J. Palmen ; V. Vitart ; P. S. Braund ; T. Kuznetsova ; C. S. Uiterwaal ; A. Adeyemo ; W. Palmas ; H. Campbell ; B. Ludwig ; M. Tomaszewski ; I. Tzoulaki ; N. D. Palmer ; T. Aspelund ; M. Garcia ; Y. P. Chang ; J. R. O'Connell ; N. I. Steinle ; D. E. Grobbee ; D. E. Arking ; S. L. Kardia ; A. C. Morrison ; D. Hernandez ; S. Najjar ; W. L. McArdle ; D. Hadley ; M. J. Brown ; J. M. Connell ; A. D. Hingorani ; I. N. Day ; D. A. Lawlor ; J. P. Beilby ; R. W. Lawrence ; R. Clarke ; J. C. Hopewell ; H. Ongen ; A. W. Dreisbach ; Y. Li ; J. H. Young ; J. C. Bis ; M. Kahonen ; J. Viikari ; L. S. Adair ; N. R. Lee ; M. H. Chen ; M. Olden ; C. Pattaro ; J. A. Bolton ; A. Kottgen ; S. Bergmann ; V. Mooser ; N. Chaturvedi ; T. M. Frayling ; M. Islam ; T. H. Jafar ; J. Erdmann ; S. R. Kulkarni ; S. R. Bornstein ; J. Grassler ; L. Groop ; B. F. Voight ; J. Kettunen ; P. Howard ; A. Taylor ; S. Guarrera ; F. Ricceri ; V. Emilsson ; A. Plump ; I. Barroso ; K. T. Khaw ; A. B. Weder ; S. C. Hunt ; Y. V. Sun ; R. N. Bergman ; F. S. Collins ; L. L. Bonnycastle ; L. J. Scott ; H. M. Stringham ; L. Peltonen ; M. Perola ; E. Vartiainen ; S. M. Brand ; J. A. Staessen ; T. J. Wang ; P. R. Burton ; M. Soler Artigas ; Y. Dong ; H. Snieder ; X. Wang ; H. Zhu ; K. K. Lohman ; M. E. Rudock ; S. R. Heckbert ; N. L. Smith ; K. L. Wiggins ; A. Doumatey ; D. Shriner ; G. Veldre ; M. Viigimaa ; S. Kinra ; D. Prabhakaran ; V. Tripathy ; C. D. Langefeld ; A. Rosengren ; D. S. Thelle ; A. M. Corsi ; A. Singleton ; T. Forrester ; G. Hilton ; C. A. McKenzie ; T. Salako ; N. Iwai ; Y. Kita ; T. Ogihara ; T. Ohkubo ; T. Okamura ; H. Ueshima ; S. Umemura ; S. Eyheramendy ; T. Meitinger ; H. E. Wichmann ; Y. S. Cho ; H. L. Kim ; J. Y. Lee ; J. Scott ; J. S. Sehmi ; W. Zhang ; B. Hedblad ; P. Nilsson ; G. D. Smith ; A. Wong ; N. Narisu ; A. Stancakova ; L. J. Raffel ; J. Yao ; S. Kathiresan ; C. J. O'Donnell ; S. M. Schwartz ; M. A. Ikram ; W. T. Longstreth, Jr. ; T. H. Mosley ; S. Seshadri ; N. R. Shrine ; L. V. Wain ; M. A. Morken ; A. J. Swift ; J. Laitinen ; I. Prokopenko ; P. Zitting ; J. A. Cooper ; S. E. Humphries ; J. Danesh ; A. Rasheed ; A. Goel ; A. Hamsten ; H. Watkins ; S. J. Bakker ; W. H. van Gilst ; C. S. Janipalli ; K. R. Mani ; C. S. Yajnik ; A. Hofman ; F. U. Mattace-Raso ; B. A. Oostra ; A. Demirkan ; A. Isaacs ; F. Rivadeneira ; E. G. Lakatta ; M. Orru ; A. Scuteri ; M. Ala-Korpela ; A. J. Kangas ; L. P. Lyytikainen ; P. Soininen ; T. Tukiainen ; P. Wurtz ; R. T. Ong ; M. Dorr ; H. K. Kroemer ; U. Volker ; H. Volzke ; P. Galan ; S. Hercberg ; M. Lathrop ; D. Zelenika ; P. Deloukas ; M. Mangino ; T. D. Spector ; G. Zhai ; J. F. Meschia ; M. A. Nalls ; P. Sharma ; J. Terzic ; M. V. Kumar ; M. Denniff ; E. Zukowska-Szczechowska ; L. E. Wagenknecht ; F. G. Fowkes ; F. J. Charchar ; P. E. Schwarz ; C. Hayward ; X. Guo ; C. Rotimi ; M. L. Bots ; E. Brand ; N. J. Samani ; O. Polasek ; P. J. Talmud ; F. Nyberg ; D. Kuh ; M. Laan ; K. Hveem ; L. J. Palmer ; Y. T. van der Schouw ; J. P. Casas ; K. L. Mohlke ; P. Vineis ; O. Raitakari ; S. K. Ganesh ; T. Y. Wong ; E. S. Tai ; R. S. Cooper ; M. Laakso ; D. C. Rao ; T. B. Harris ; R. W. Morris ; A. F. Dominiczak ; M. Kivimaki ; M. G. Marmot ; T. Miki ; D. Saleheen ; G. R. Chandak ; J. Coresh ; G. Navis ; V. Salomaa ; B. G. Han ; X. Zhu ; J. S. Kooner ; O. Melander ; P. M. Ridker ; S. Bandinelli ; U. B. Gyllensten ; A. F. Wright ; J. F. Wilson ; L. Ferrucci ; M. Farrall ; J. Tuomilehto ; P. P. Pramstaller ; R. Elosua ; N. Soranzo ; E. J. Sijbrands ; D. Altshuler ; R. J. Loos ; A. R. Shuldiner ; C. Gieger ; P. Meneton ; A. G. Uitterlinden ; N. J. Wareham ; V. Gudnason ; J. I. Rotter ; R. Rettig ; M. Uda ; D. P. Strachan ; J. C. Witteman ; A. L. Hartikainen ; J. S. Beckmann ; E. Boerwinkle ; R. S. Vasan ; M. Boehnke ; M. G. Larson ; M. R. Jarvelin ; B. M. Psaty ; G. R. Abecasis ; A. Chakravarti ; P. Elliott ; C. M. van Duijn ; C. Newton-Cheh ; D. Levy ; M. J. Caulfield ; T. Johnson
    Nature Publishing Group (NPG)
    Published 2011
    Staff View
    Publication Date:
    2011-09-13
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Africa/ethnology ; Asia/ethnology ; Blood Pressure/*genetics/physiology ; Cardiovascular Diseases/*genetics ; Coronary Artery Disease/genetics ; Europe/ethnology ; Genetic Predisposition to Disease/*genetics ; Genome-Wide Association Study ; Humans ; Hypertension/genetics ; Kidney Diseases/genetics ; Polymorphism, Single Nucleotide/*genetics ; Stroke/genetics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    Publication Date:
    2015-04-04
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Alzheimer Disease/*genetics ; Female ; Genetic Predisposition to Disease/*genetics ; Genetic Variation/*genetics ; Humans ; Male ; Phospholipase D/*genetics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  4. 4
  5. 5
    Staff View
    Publication Date:
    2018-02-14
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    1098-0121
    Electronic ISSN:
    1095-3795
    Topics:
    Physics
    Keywords:
    Electronic structure and strongly correlated systems
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  6. 6
    Staff View
    Publication Date:
    2018-09-14
    Publisher:
    American Society of Hematology (ASH)
    Print ISSN:
    0006-4971
    Electronic ISSN:
    1528-0020
    Topics:
    Biology
    Medicine
    Keywords:
    Myeloid Neoplasia, Clinical Trials and Observations
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  7. 7
    Staff View
    Publication Date:
    2011-03-15
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Breast Neoplasms/diagnosis/*genetics/*pathology ; Carcinoma, Ductal, Breast/diagnosis/genetics/pathology ; Chromosome Breakpoints ; Clone Cells/cytology ; Diploidy ; Disease Progression ; *Evolution, Molecular ; Female ; Flow Cytometry ; Genetic Heterogeneity ; Genome, Human/genetics ; Genomics ; Humans ; Liver Neoplasms/genetics/secondary ; Loss of Heterozygosity ; Sequence Analysis, DNA/*methods ; Single-Cell Analysis/*methods
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  8. 8
    Staff View
    Publication Date:
    2018-03-25
    Publisher:
    BMJ Publishing
    Electronic ISSN:
    2044-6055
    Topics:
    Medicine
    Keywords:
    Open access, Smoking and tobacco
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  9. 9
    Marie, I. J., Chang, H.-M., Levy, D. E.
    Rockefeller University Press
    Published 2018
    Staff View
    Publication Date:
    2018-12-04
    Publisher:
    Rockefeller University Press
    Print ISSN:
    0022-1007
    Electronic ISSN:
    1540-9538
    Topics:
    Medicine
    Keywords:
    Autoimmunity, Innate Immunity and Inflammation, Infectious Disease and Host Defense
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  10. 10
  11. 11
    Levy, D. H. ; Gleason, K. K. ; Rothschild, M. ; Sedlacek, J. H. C.

    [S.l.] : American Institute of Physics (AIP)
    Published 1993
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Hydrogen nuclear magnetic resonance (NMR) was used to probe defect reactions in fused silica during 193 nm ultraviolet irradiation and thermal treatment. Hydrogen concentration and Carr–Purcell measurements indicate that the majority of hydrogen atoms are isolated and do not segregate or evolve from the fused silica during annealing or irradiation. Previously, NMR spin-lattice relaxation measurements have revealed that a small fraction of hydrogen in fused silica exists as centers that undergo molecular motion and are consumed during annealing. Here, a detailed analysis of the NMR spin-lattice relaxation behavior is used to support the identification of this center as a pair of adjacent silanol groups. These silanol pairs react during annealing to form a strained bond, thus increasing the susceptibility of fused silica to E' formation. Excimer laser irradiation, like thermal treatment, is shown to directly reduce the number of relaxation centers in the material. The measured dependence of spin-lattice relaxation as a function of irradiation for identically prepared samples is consistent with silanol pair center consumption by a two-photon process.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  12. 12
    Levy, D. ; del Monte, F. ; López-Amo, M. ; Otón, J. M. ; Datta, P. ; Matías, I.

    [S.l.] : American Institute of Physics (AIP)
    Published 1995
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    A tunable fiber optic delay generator has been demonstrated utilizing a novel photochromic material embedded in a silica sol-gel matrix. This material has been placed between two multimode commercial fibers filling up the V-shaped groove of a removable connector. With this simple structure, the ability to control optically propagation times of optical signals is achieved. Measurements of input wavelength and optical power required for the desired delay time are presented. © 1995 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  13. 13
    Ada-Hanifi, M. ; Chantre, A. ; Levy, D. ; Gonchond, J. P. ; Delpech, Ph. ; Nouailhat, A.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1991
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    We report a physical analysis of the reverse leakage currents observed in titanium silicided n+/p junctions fabricated using rapid thermal processing. By studying the dependence of currents on temperature, bias voltage, and diode geometry, we have been able to identify the leakage mechanisms. A defect level at Ev+0.30 eV, detected in concentrations (approximately-greater-than)1014 cm−3, is shown to be responsible for a low leakage current component, through a generation-recombination mechanism. Silicide asperities protruding through the metallurgical junction are proposed to account for the tunneling nature of a second, high leakage, distribution of currents.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  14. 14
    Pantel, R. ; Levy, D. ; Nicolas, D. ; Ponpon, J. P.

    [S.l.] : American Institute of Physics (AIP)
    Published 1987
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Sputtered titanium thin films on 〈100〉 Si wafers were exposed to rapid thermal annealing (RTA) in argon at temperatures of 600–900 °C. Auger depth profiling shows that when exposed to air the Ti films takes in 3×1016 oxygen atoms cm−2 independently of Ti thickness. During RTA the oxygen tends to redistribute uniformly and a snowplow effect, due to the O solubility difference between Ti and TiSi2, confines it to the unreacted titanium layer. Early on, silicon is observed at the Ti surface and a second silicide layer starts growing. All of the oxygen is finally fixed in the C54 TiSi2 where the two silicide fronts meet (at around 50 nm from the surface). This reproducible effect is associated with RTA and is not observed in classical furnace annealing.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  15. 15
    Levy, D. E. ; Duffy, T. E.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1977
    Staff View
    ISSN:
    1471-4159
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    Energy metabolism was studied in the cerebral cortex of gerbils during and following ischemia induced by 1 h of unilateral carotid artery occlusion. An aneurysm clip was applied to the right common carotid artery of 50-70 g gerbils under brief halothane anesthesia, and the clip was removed 1 h later. Clinical state (gait, responsiveness, seizures) was evaluated during carotid occlusion, and 40% of the animals showed clinical evidence of stroke. Cortical energy stores (2 ATP + ADP + P-creatine) were more than half depleted in the ipsilateral cortex of clinically-affected gerbils, and glucose fell by 75%; lactate rose over 7-fold in the same specimens. After release of the carotid clip, clinical state improved, and biochemical abnormalities partially resolved. However, even after 24 h, the concentration of ATP and the total pool of adenine nucleotides remained subnormal. Metabolic activity in the ischemic cortex, assessed as the utilization of high-energy phosphates following decapitation, was normal after 1 h of recovery and decreased (-50%) after 24 h but was increased by more than 50% after 4 h. Cerebral glucose utilization, evaluated from autoradiographs prepared after intravenous administration of 2-[1-14C]deoxyglucose, was also increased in the cortex, hippocampus, and thalamus after 4 h of recovery. This post-ischemic hypermetabolism in tissue damaged by ischemia may identify a critical period for cell repair, when therapy could be decisive.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  16. 16
    Levy, D. E. ; Duffy, T. E.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1975
    Staff View
    ISSN:
    1471-4159
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  17. 17
    McNamara, K. M. ; Levy, D. H. ; Gleason, K. K. ; Robinson, C. J.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1992
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Hydrogen incorporated into polycrystalline diamond was found to correlate with the optical absorption in the 8 to 10 μm wavelength IR region, where transparency is desired. In this first detailed study of diamond films by 1H NMR, average concentrations were found to be 〈0.25 at. % H. However, segregation produces regions of extremely high local hydrogen density as evidenced by a broad (50–70 kHz) Gaussian NMR component. The majority of this clustered hydrogen is rigidly held, while a fraction undergoes motional narrowing at room temperature, most likely due to methyl group rotation. Sites at grain boundaries are capable of accounting for a significant fraction of this hydrogen, as are defects and voids within the crystal or a heavily hydrogenated phase stable at the deposition temperature.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  18. 18
    Levy, D. H. ; Gleason, K. K. ; Rothschild, M. ; Sedlacek, J. H. C. ; Takke, R.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1992
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Nuclear magnetic resonance (NMR) was used to study hydrogen in fused silica for the first time. The 1H NMR spin-lattice relaxation time constant (T1) in synthetic fused silica was found to be strongly affected by thermal treatments, correlating with the concentration of E' centers produced during subsequent 193-nm excimer-laser irradiation. In addition, the relative proportion of the two components in the NMR spectrum were affected by thermal treatment, although no change in the total hydrogen content was observed. The broad NMR component, because of its linewidth and dependence upon thermal processing, is postulated to be a direct signature of the NMR relaxation centers. These results are interpreted within the framework of a model in which pairs of silanol groups are consumed during thermal treatment, forming a strained bond which is susceptible to E' center formation.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  19. 19
    Otón, J. M. ; Pena, J. M. S. ; Serrano, A. ; Levy, D.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1995
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Dispersions of nematic liquid crystal microdroplets in silica glasses have been obtained by sol-gel processes, forming gel-glass dispersed liquid crystals (GDLCs). GDLC microdroplet size may be adjusted precisely by controlling the sol-gel reaction. This allows the preparation of scattering media with different spectral response, which can be further modified by reorienting the liquid crystal microdroplets with external electric fields. Opaque/transparent and dichroic GDLC thin films have been prepared. An extension of the general scattering theory is used for explaining their optical behavior. © 1995 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  20. 20
    Levy, D. ; Weiser, K.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1995
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    A new technique is reported for measuring the diffusion length of minority carriers in a layer of a p-n junction. The technique consists of illuminating a sample with a sinusoidally varying illumination pattern produced by two interfering laser beams and measuring the corresponding photovoltage along the plane of the sample. The diffusion length is obtained from the dependence of the voltage on the fringe distance. © 1995 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses