Search Results - (Author, Cooperation:J. Dumais)
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1Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2011-09-24Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Bauhinia/*anatomy & histology ; Biomimetic Materials ; Elasticity ; Seeds/*anatomy & histologyPublished by: -
2Latest Papers from Table of Contents or Articles in PressS. Djebali ; C. A. Davis ; A. Merkel ; A. Dobin ; T. Lassmann ; A. Mortazavi ; A. Tanzer ; J. Lagarde ; W. Lin ; F. Schlesinger ; C. Xue ; G. K. Marinov ; J. Khatun ; B. A. Williams ; C. Zaleski ; J. Rozowsky ; M. Roder ; F. Kokocinski ; R. F. Abdelhamid ; T. Alioto ; I. Antoshechkin ; M. T. Baer ; N. S. Bar ; P. Batut ; K. Bell ; I. Bell ; S. Chakrabortty ; X. Chen ; J. Chrast ; J. Curado ; T. Derrien ; J. Drenkow ; E. Dumais ; J. Dumais ; R. Duttagupta ; E. Falconnet ; M. Fastuca ; K. Fejes-Toth ; P. Ferreira ; S. Foissac ; M. J. Fullwood ; H. Gao ; D. Gonzalez ; A. Gordon ; H. Gunawardena ; C. Howald ; S. Jha ; R. Johnson ; P. Kapranov ; B. King ; C. Kingswood ; O. J. Luo ; E. Park ; K. Persaud ; J. B. Preall ; P. Ribeca ; B. Risk ; D. Robyr ; M. Sammeth ; L. Schaffer ; L. H. See ; A. Shahab ; J. Skancke ; A. M. Suzuki ; H. Takahashi ; H. Tilgner ; D. Trout ; N. Walters ; H. Wang ; J. Wrobel ; Y. Yu ; X. Ruan ; Y. Hayashizaki ; J. Harrow ; M. Gerstein ; T. Hubbard ; A. Reymond ; S. E. Antonarakis ; G. Hannon ; M. C. Giddings ; Y. Ruan ; B. Wold ; P. Carninci ; R. Guigo ; T. R. Gingeras
Nature Publishing Group (NPG)
Published 2012Staff ViewPublication Date: 2012-09-08Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Alleles ; Cell Line ; DNA/*genetics ; DNA, Intergenic/genetics ; *Encyclopedias as Topic ; Enhancer Elements, Genetic ; Exons/genetics ; Gene Expression Profiling ; Genes/genetics ; Genome, Human/*genetics ; Genomics ; Humans ; *Molecular Sequence Annotation ; Polyadenylation/genetics ; Protein Isoforms/genetics ; RNA/biosynthesis/genetics ; RNA Editing/genetics ; RNA Splicing/genetics ; Regulatory Sequences, Nucleic Acid/*genetics ; Repetitive Sequences, Nucleic Acid/genetics ; Sequence Analysis, RNA ; Transcription, Genetic/*genetics ; Transcriptome/*geneticsPublished by: -
3Latest Papers from Table of Contents or Articles in PressX. Noblin ; N. O. Rojas ; J. Westbrook ; C. Llorens ; M. Argentina ; J. Dumais
American Association for the Advancement of Science (AAAS)
Published 2012Staff ViewPublication Date: 2012-03-17Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Cell Shape ; Elasticity ; Polypodium/cytology/*physiology ; Sporangia/cytology/*physiology ; Spores/*physiology ; WaterPublished by: -
4Articles: DFG German National LicensesStaff View
ISSN: 0378-4371Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesHedrick, J. L. ; Dumais, J. J. ; Jelinski, L. W. ; Patsiga, R. A. ; McGrath, J. E.
Bognor Regis [u.a.] : Wiley-Blackwell
Published 1987Staff ViewISSN: 0887-624XKeywords: Chemistry ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyNotes: Selectively deuterated poly(arylene ether sulfones) were prepared for neutron scattering studies and for deuterium NMR investigations. The availability of these model macromolecules permits molecular-level identification of the motions responsible for the low temperature relaxations that have been observed in the dynamic mechanical spectra of these engineering polymers. Three labeled sites on the appropriate monomers (bisphenol-A and 4,4′-dichlorodiphenylsulfone) were prepared from deuterated intermediates and characterized via chromatographic, spectroscopic, and thermal analysis. The deuterium exhcange between methyl and aromatic sites that occurred during synthesis was quantified. These labeled monomers were mixed with hydrogenous monomers to synthesize high molecular weight, selectively deuterated poly(arylene ether sulfones). A synthetic technique involving N-methyl-2-pyrrolidone/potassium carbonate was employed to afford high molecular weight polymers. The polymers were characterized by FT-IR, proton, carbon, and deuterium NMR, intrinsic viscosities, and thermal analysis. Molecular weights of the labeled polymers were similar to unlabeled systems.Additional Material: 4 Ill.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesJelinski, L. W. ; Dumais, J. J. ; Watnick, P. I. ; Bass, S. V. ; Shepherd, L.
New York : Wiley-Blackwell
Published 1982Staff ViewISSN: 0360-6376Keywords: Physics ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyNotes: 13C-NMR spectra of bulk acrylonitrile-butadiene-styrene (ABS) resin are reported. The styrene-co-acrylonitrile (SAN) carbons can be observed selectively by using high-power proton decoupling, cross polarization, and magic angle spinning (MAS). The polybutadiene (PBd) carbons can be observed selectively by using low-power proton decoupling, with or without MAS. Methods and conditions for using 13C-NMR to quantify the amount of PBd in solid ABS resins are developed. The 13C-NMR results and results from iodine monochloride titrations for PBd content are in good agreement. Resonances of PBd in ABS in the solid state are assigned on the basis of triad sequences of cis, trans, and vinyl-1,2 geometric isomers of butadiene. Computational methods are set forth for measuring directly from the 13C-NMR spectra the percent of cis, trans, and vinyl-1,2 isomers in PBd in the ABS resin. The NMR measurement of PBd microstructure appears to be preferable to infrared (IR) determinations. Relaxation parameters (T1 and NOE) are reported for PBd in bulk ABS as a function of temperature and are analyzed in terms of a distribution of rotational correlation times. These relaxation parameters are similar to those of nongrafted PBd and indicate that the local motions in grafted and nongrafted PBd are similar.Additional Material: 7 Ill.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesTarcha, P. J. ; Fitch, R. M. ; Dumais, J. J. ; Jelinski, L. W.
New York : Wiley-Blackwell
Published 1983Staff ViewISSN: 0098-1273Keywords: Physics ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyPhysicsNotes: Methyl acrylate polymer colloids can be hydrolyzed self-catalytically by bound strong acid surface groups derived from the polymerization initiator. The kinetics of hydrolysis were earlier shown to be apparently pseudo-zeroth-order for any given latex, and first order with respect to surface strong acid concentration. A surface reaction zone model was proposed to explain the kinetics. This model leads to the prediction that the polymer particles will possess a core-shell morphology after some hydrolysis has occurred. This study employs 13C NMR spectroscopy to investigate the particle morphology in the wet latex, a new application for this method. The temperature dependence of the 13C NMR integrated intensities at various levels of hydrolysis provides strong evidence that the particles do possess core-shell morphology, and that the shell is composed of PAA/PMA copolymer. This shell is swollen and plasticized by water, resulting in greatly enhanced segmental mobility of the polymer chains as evidenced by marked narrowing of the NMR lines. Thermal measurements alone cannot distinguish particle morphology because PMA appears to be somewhat compatible with its partially hydrolyzed analog at the temperatures of measurement.Additional Material: 11 Ill.Type of Medium: Electronic ResourceURL: