Search Results - (Author, Cooperation:A. Ke)
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1Latest Papers from Table of Contents or Articles in PressS. F. Ataide ; N. Schmitz ; K. Shen ; A. Ke ; S. O. Shan ; J. A. Doudna ; N. Ban
American Association for the Advancement of Science (AAAS)
Published 2011Staff ViewPublication Date: 2011-02-19Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Bacterial Proteins/*chemistry/metabolism ; Base Sequence ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; Enzyme Activation ; Escherichia coli/chemistry/metabolism ; Escherichia coli Proteins/*chemistry/metabolism ; GTP Phosphohydrolases/chemistry/metabolism ; Guanosine Triphosphate/analogs & derivatives/chemistry/metabolism ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Models, Biological ; Models, Molecular ; Nucleic Acid Conformation ; Protein Conformation ; Protein Multimerization ; Protein Structure, Tertiary ; Protein Transport ; RNA, Bacterial/*chemistry/metabolism ; Receptors, Cytoplasmic and Nuclear/*chemistry/metabolism ; Ribosomal Proteins/chemistry/metabolism ; Ribosomes/metabolism ; Signal Recognition Particle/*chemistry/metabolismPublished by: -
2Latest Papers from Table of Contents or Articles in PressG. Lee ; M. A. Bratkowski ; F. Ding ; A. Ke ; T. Ha
American Association for the Advancement of Science (AAAS)
Published 2012Staff ViewPublication Date: 2012-06-30Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Base Pairing ; Exoribonucleases/*metabolism ; Exosome Multienzyme Ribonuclease Complex ; *RNA Stability ; RNA, Fungal/metabolism ; Saccharomyces cerevisiae Proteins/*metabolismPublished by: -
3Latest Papers from Table of Contents or Articles in PressR. P. Hayes ; Y. Xiao ; F. Ding ; P. B. van Erp ; K. Rajashankar ; S. Bailey ; B. Wiedenheft ; A. Ke
Nature Publishing Group (NPG)
Published 2016Staff ViewPublication Date: 2016-02-11Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
4Articles: DFG German National LicensesStaff View
ISSN: 1398-9995Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineType of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesStaff View
ISSN: 0040-5744Keywords: Key words: C6H6 ; C6H6O ; Electronic excitation ; ab initio ; CASPT2 ; Oscillator strength ; Rydberg statesSource: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyNotes: Summary. The valence excited states and the 3s, 3p, and 3d (united atom) Rydberg states of benzene and phenol have been obtained by the CASPT2 method, which computes a second-order perturbation correction to complete active space self-consistent field (CASSCF) energies. All non-zero dipole oscillator strengths are also computed, at the CASSCF level. For benzene, 16 singlet and 16 triplet states with excitation energies up to ca. 7.86 eV (63 400 cm-1) are obtained. Of these, 12 singlet and three triplet energies are experimentally known well enough to allow meaningful comparison. The average error is around 0.1 eV. The highest of these singlet states (21E2 g) is the highest valence ππ* state predicted by elementary π-electron theory. Its energy is then considerably lower than has been suggested from laser flash experiments, but in perfect agreement with a reinterpretation of that experiment. For phenol, 27 singlet states are obtained, in the range 4.53–7.84 eV (63 300 cm-1). Only the lowest has a well-known experimental energy, which agrees with the computed result within 0.03 eV. The ionization energy is in error by 0.05 eV.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 0001-1541Keywords: Chemistry ; Chemical EngineeringSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyProcess Engineering, Biotechnology, Nutrition TechnologyNotes: An experimental study of a semibatch reaction crystallization is presented. Dilute hydrochloric acid is fed to a stirred solution of sodium benzoate to crystallize benzoic acid. The weight mean size of the product crystals increases with increasing stirring rate, reaches a maximum, and then decreases again. Larger crystals may be produced if the reactant feed point is positioned close to the outlet stream of the impeller. At equal power input the influence of stirrer type is negligible. Decreasing reactant concentrations or feed rate increases the crystal size significantly. Experimental results are explained qualitatively focusing on nucleation and growth conditions and on feed point mixing. The feed point micromixing brings reactants together to generate supersaturation and allow for nucleation. Continued mixing, however, may partially dilute supersaturation before nucleation takes place or may restrict nuclei growth, thus promoting more efficient Ostwald ripening in the bulk. This may result in high bulk supersaturations which in turn hampers the dilution effects.Additional Material: 17 Ill.Type of Medium: Electronic ResourceURL: -
7Latest Papers from Table of Contents or Articles in PressXiao, Y., Luo, M., Dolan, A. E., Liao, M., Ke, A.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-07-06Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyGeosciencesComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Biochemistry, Online OnlyPublished by: