Search Results - (Author, Cooperation:X. Gu)
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1Latest Papers from Table of Contents or Articles in PressLiu, X., Gu, X., Ma, W., Oxendine, M., Gil, H. J., Davis, G. E., Cleaver, O., Oliver, G.
The Company of Biologists
Published 2018Staff ViewPublication Date: 2018-09-16Publisher: The Company of BiologistsPrint ISSN: 0950-1991Electronic ISSN: 1477-9129Topics: BiologyKeywords: Cardiovascular development and regenerationPublished by: -
2Latest Papers from Table of Contents or Articles in PressWang, P.-F., Yao, H.-R., Liu, X.-Y., Yin, Y.-X., Zhang, J.-N., Wen, Y., Yu, X., Gu, L., Guo, Y.-G.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-03-12Publisher: American Association for the Advancement of Science (AAAS)Electronic ISSN: 2375-2548Topics: Natural Sciences in GeneralPublished by: -
3Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2011-05-21Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; *Base Composition ; *Biological Evolution ; Choanoflagellata/chemistry/genetics ; Evolution, Molecular ; Fungal Proteins/chemistry ; *Genome ; Phosphorylation ; Protein-Tyrosine Kinases/metabolism ; Proteins/*chemistry ; Protozoan Proteins/chemistry ; Saccharomycetales/chemistry/genetics ; *Selection, Genetic ; Tyrosine/*chemistryPublished by: -
4Latest Papers from Table of Contents or Articles in PressY. Kang ; X. E. Zhou ; X. Gao ; Y. He ; W. Liu ; A. Ishchenko ; A. Barty ; T. A. White ; O. Yefanov ; G. W. Han ; Q. Xu ; P. W. de Waal ; J. Ke ; M. H. Tan ; C. Zhang ; A. Moeller ; G. M. West ; B. D. Pascal ; N. Van Eps ; L. N. Caro ; S. A. Vishnivetskiy ; R. J. Lee ; K. M. Suino-Powell ; X. Gu ; K. Pal ; J. Ma ; X. Zhi ; S. Boutet ; G. J. Williams ; M. Messerschmidt ; C. Gati ; N. A. Zatsepin ; D. Wang ; D. James ; S. Basu ; S. Roy-Chowdhury ; C. E. Conrad ; J. Coe ; H. Liu ; S. Lisova ; C. Kupitz ; I. Grotjohann ; R. Fromme ; Y. Jiang ; M. Tan ; H. Yang ; J. Li ; M. Wang ; Z. Zheng ; D. Li ; N. Howe ; Y. Zhao ; J. Standfuss ; K. Diederichs ; Y. Dong ; C. S. Potter ; B. Carragher ; M. Caffrey ; H. Jiang ; H. N. Chapman ; J. C. Spence ; P. Fromme ; U. Weierstall ; O. P. Ernst ; V. Katritch ; V. V. Gurevich ; P. R. Griffin ; W. L. Hubbell ; R. C. Stevens ; V. Cherezov ; K. Melcher ; H. E. Xu
Nature Publishing Group (NPG)
Published 2015Staff ViewPublication Date: 2015-07-23Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Arrestin/*chemistry/*metabolism ; Binding Sites ; Crystallography, X-Ray ; Disulfides/chemistry/metabolism ; Humans ; Lasers ; Mice ; Models, Molecular ; Multiprotein Complexes/biosynthesis/chemistry/metabolism ; Protein Binding ; Reproducibility of Results ; Rhodopsin/*chemistry/*metabolism ; Signal Transduction ; X-RaysPublished by: -
5Latest Papers from Table of Contents or Articles in PressKonstantinova, T., Rameau, J. D., Reid, A. H., Abdurazakov, O., Wu, L., Li, R., Shen, X., Gu, G., Huang, Y., Rettig, L., Avigo, I., Ligges, M., Freericks, J. K., Kemper, A. F., Dürr, H. A., Bovensiepen, U., Johnson, P. D., Wang, X., Zhu, Y.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-04-28Publisher: American Association for the Advancement of Science (AAAS)Electronic ISSN: 2375-2548Topics: Natural Sciences in GeneralPublished by: -
6Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-05-11Publisher: American Chemical Society (ACS)Print ISSN: 0002-7863Electronic ISSN: 1520-5126Topics: Chemistry and PharmacologyPublished by: -
7Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-07-03Publisher: Genetics Society of America (GSA)Electronic ISSN: 2160-1836Topics: BiologyPublished by: -
8Latest Papers from Table of Contents or Articles in PressB. Yang ; J. Busch ; L. Zhang ; J. Ran ; X. Gu ; W. Zhang ; B. Du ; R. A. Mittermeier
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-02-02Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; China ; Conservation of Natural Resources/*economics ; *Ecosystem ; Trees ; *UrsidaePublished by: -
9Latest Papers from Table of Contents or Articles in PressQian, G., Jiang, W., Zou, B., Feng, J., Cheng, X., Gu, J., Chu, T., Niu, C., He, R., Chu, Y., Lu, M.
Rockefeller University Press
Published 2018Staff ViewPublication Date: 2018-09-04Publisher: Rockefeller University PressPrint ISSN: 0022-1007Electronic ISSN: 1540-9538Topics: MedicineKeywords: Mucosal ImmunologyPublished by: -
10Latest Papers from Table of Contents or Articles in PressD. Liu ; X. Gu ; J. Zhu ; X. Zhang ; Z. Han ; W. Yan ; Q. Cheng ; J. Hao ; H. Fan ; R. Hou ; Z. Chen ; Y. Chen ; C. T. Li
American Association for the Advancement of Science (AAAS)
Published 2014Staff ViewPublication Date: 2014-10-25Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/genetics/metabolism ; Learning/*physiology ; Luminescent Proteins/genetics/metabolism ; Male ; Memory, Short-Term/*physiology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Prefrontal Cortex/cytology/*physiology ; Pyramidal Cells/*physiology ; Reaction Time ; *Retention (Psychology) ; Rhodopsin/genetics/metabolism ; SmellPublished by: -
11Latest Papers from Table of Contents or Articles in PressY. Shang ; Y. Ma ; Y. Zhou ; H. Zhang ; L. Duan ; H. Chen ; J. Zeng ; Q. Zhou ; S. Wang ; W. Gu ; M. Liu ; J. Ren ; X. Gu ; S. Zhang ; Y. Wang ; K. Yasukawa ; H. J. Bouwmeester ; X. Qi ; Z. Zhang ; W. J. Lucas ; S. Huang
American Association for the Advancement of Science (AAAS)
Published 2014Staff ViewPublication Date: 2014-11-29Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Base Sequence ; Cucumis sativus/genetics/*metabolism ; Fruit/genetics/*metabolism ; Gene Expression Regulation, Plant ; Genome, Plant ; Molecular Sequence Data ; Plant Leaves/genetics/*metabolism ; Plant Proteins/genetics/*metabolism ; *Taste ; Transcription Factors/genetics/*metabolism ; Triterpenes/chemical synthesis/*metabolismPublished by: -
12Latest Papers from Table of Contents or Articles in PressZhou B, Wang X, Cao Y, Ge X, Gu L, Meng J
Italian Society of Silviculture and Forest Ecology
Published 2018Staff ViewPublication Date: 2018-12-17Publisher: Italian Society of Silviculture and Forest EcologyElectronic ISSN: 1971-7458Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionPublished by: -
13Latest Papers from Table of Contents or Articles in PressH. Chen ; X. Gu ; Y. Liu ; J. Wang ; S. E. Wirt ; R. Bottino ; H. Schorle ; J. Sage ; S. K. Kim
Nature Publishing Group (NPG)
Published 2011Staff ViewPublication Date: 2011-10-14Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Age Factors ; Animals ; Cell Proliferation ; Cells, Cultured ; Diabetes Mellitus, Experimental/pathology ; E2F Transcription Factors/metabolism ; Female ; Gene Expression Regulation, Enzymologic ; Gene Knockout Techniques ; Histone-Lysine N-Methyltransferase/genetics ; Humans ; Insulin-Secreting Cells/*cytology/enzymology/*physiology ; Male ; Mice ; Mice, Inbred C57BL ; Mitogen-Activated Protein Kinase 1/metabolism ; Mitogen-Activated Protein Kinase 3/metabolism ; Polycomb Repressive Complex 2 ; Receptors, Platelet-Derived Growth Factor/*metabolism ; Retinoblastoma Protein/metabolism ; *Signal TransductionPublished by: -
14Articles: DFG German National LicensesGu, X. J. ; Levandier, D. J. ; Zhang, B. ; Scoles, G. ; Zhuang, D.
College Park, Md. : American Institute of Physics (AIP)
Published 1990Staff ViewISSN: 1089-7690Source: AIP Digital ArchiveTopics: PhysicsChemistry and PharmacologyNotes: We have measured the infrared photodissociation spectra of argon clusters containing SiF4, as a function of the cluster size n (for n≤ 103) using molecular beam laser spectroscopy. The clusters were produced by both the conventional seeded expansion of a dilute mixture and by a "pickup'' method where, upon colliding with it, the chromophore sticks to the surface of a cluster made in a neat solvent expansion. Furthermore, the spectra of small SF6/Arn clusters (n≤50) have been remeasured with the improved resolution resulting from the use of two line and tunable isotopic CO2 lasers. These data, together with previously published data on SF6/Ar, indicate a remarkably different behavior for these two solute–solvent combinations. The preferred "site'' for SiF4 is at the surface of Ar clusters of all sizes, regardless of how the molecule is introduced to the cluster, while appreciable amounts of SF6 reside at the surface only when the cluster is large and the impurity is deposited onto the cluster surface. The behavior of SiF4 and SF6, together with the analogous behavior of other polyatomic chromophores, the IR spectra of which have been measured and reported previously [D. J. Levandier, M. Mengel, R. Pursel, J. McCombie, and G. Scoles, Z. Phys. D 10, 337 (1988); D. J. Levandier, S. Goyal, J. McCombie, B. Pate, and G. Scoles, J. Chem. Soc. Faraday Trans. 86, 2361 (1990)], can be rationalized in terms of molecular dynamics simulations of similar systems which are presented in the paper by Perera and Amar [L. Perera and F. G. Amar, J. Chem. Phys. 93, 4884 (1990)]. The combination of the theoretical and experimental results confirm the usefulness of infrared photodissociation spectroscopy for the study of the structure of clusters and suggest that assuming any particular location for an impurity in a cluster in the absence of experimental evidence or, at least, a dynamics calculation, can easily lead to wrong conclusions.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesBuck, U. ; Gu, X. J. ; Lauenstein, Ch. ; Rudolph, A.
College Park, Md. : American Institute of Physics (AIP)
Published 1990Staff ViewISSN: 1089-7690Source: AIP Digital ArchiveTopics: PhysicsChemistry and PharmacologyNotes: Size-selective infrared photodissociation spectra of (CH3OH)n clusters from n=2 to n=9 were measured near the absorption band of the C–O stretching mode of the monomer at 1033.5 cm−1 . The experiments were carried out in a molecular-beam apparatus in which the clusters are generated in a supersonic expansion and afterwards size selected in a scattering experiment with helium atoms. The internally excited clusters are dissociated by the radiation of a cw CO2 laser in a new antiparallel arrangement of the scattered cluster beam and laser beam. The observed spectra vary from the dimer, for which a double-peak structure appears, to the single-peak spectra of the trimer, tetramer, and pentamer which are continuously shifted to higher frequencies. A special transition is seen from the pentamer to the hexamer, for which again a double-peak structure is observed which continues to larger clusters. Applying an intermolecular model potential, a correlation between the observed spectra and the cluster configuration of minimum energy is derived. The line shifts of the dimer to the red and blue are caused by the nonequivalent position of the donor and acceptor in the hydrogen bond. The next three larger clusters are nearly planar rings, while from the hexamer onwards, only distorted rings and similar isomeric structures appear. These calculations together with the evaluation of the integrated dissociation cross section show that only internally excited dimers and trimers can be dissociated with one or two CO2 laser photons, respectively.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1089-7666Source: AIP Digital ArchiveTopics: PhysicsNotes: Recent analytical work has shown that when an acoustic plane wave propagates through a rotational flow field there is a linear relationship between the Fourier component of the scattered acoustic pressure and the Fourier transform in space and time of the vorticity component that is normal to the plane defined by the wave vectors of the incident and scattered acoustic waves. Hence, ultrasound scattering can be used as a non-intrusive spectral probe of vorticity and potentially as a tool for direct measurements of vorticity distributions. Some aspects of this technique have been tested in a swirling air jet emanating from a 2.54 cm diameter nozzle where the swirl is generated upstream of the jet nozzle by a rotating paddle. For a given exit volume flow rate, swirl numbers up to 0.4 are realized. Radial distributions of the streamwise and tangential velocity components downstream of the jet exit plane are measured using two-component hot-wire anemometry and the corresponding distributions of streamwise vorticity are computed. A nominally plane ultrasonic wave field is generated normal to the jet axis by a transmitter having a 16 cm square aperture. The scattered ultrasound in the radial direction is measured at a number of streamwise and azimuthal stations. In accord with the theory, the normalized amplitude of the scattered acoustic wave is a linear function of the magnitude of the centerline vorticity at the exit plane of the jet, and is independent of the intensity of the incident wave field. Fourier components of the vorticity distribution are directly measured by varying the scattering angle and are in good agreement with theoretical predictions. © 1998 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesGu, X. ; Karunasiri, G. ; Chen, G.
Woodbury, NY : American Institute of Physics (AIP)
Published 1998Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: Accurate determination of thermal parameters of microbolometer-based sensors is of considerable interest for many applications. The most important parameters are thermal time constant, heat capacitance and thermal conductance. In this work, we have developed a technique to measure all three quantities using a single electrical measurement. The method involves the measurement of time dependent output voltage of a balanced Wheatstone bridge containing a microbolometer under pulse bias condition. The validity of the approach is verified experimentally using metal–film microbolometers. The experimental results are in excellent agreement with the theoretical analysis of the measurement technique.© 1998 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesHuo, Y. S. ; Gu, X. J. ; Code, R. F. ; Fuh, Y. G.
[S.l.] : American Institute of Physics (AIP)
Published 1986Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The nanosecond optoelectronic switching characteristics of type IIa diamond illuminated by pulsed UV radiation from an excimer laser at λ=193 nm are reported. With sputtered titanium contacts, certain electro-optical conditions produce a secondary current peak which follows the primary photocurrent pulse. When the bias voltage is increased further (with the laser excitation intensity being kept constant), the primary and secondary current pulses merge together, and their combined peak value is observed to have a supralinear increase with respect to bias voltage. The threshold voltages for secondary pulse formation are also shown to decrease with respect to increasing laser excitation intensities. Secondary current pulse formation and decay are shown to be consistent with a model of space-charge-assisted Fowler–Nordheim electron tunneling across the reversed-biased negative Ti/C electrode.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesGough, T. E. ; Gu, X. J. ; Isenor, N. R.
[S.l.] : American Institute of Physics (AIP)
Published 1987Staff ViewISSN: 1089-7623Source: AIP Digital ArchiveTopics: PhysicsElectrical Engineering, Measurement and Control TechnologyNotes: A method for stabilizing a cw CO2 laser using a molecular beam absorption signal as an external reference is described. The laser may be stabilized at line center or at any offset within the Doppler width by Stark tuning the absorption frequency. A time-domain fractional frequency stability of σ(τ)=2.03×10−10τ−1.3 was measured with another CO2 laser independently stabilized on the Lamb dip of the 4.3-μm fluorescence.Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: Raman spectra of polyimide films were studied before and after being irradiated with 308 nm excimer laser pulses in order to understand the conductivity increase induced by ultraviolet irradiation. Changes in the chemical structure of polyimide were observed. A possible mechanism responsible for the ultraviolet induced conductivity increase is proposed. This letter also shows that the Raman microprobe can be very useful in the analysis of the molecular structure of polymers.Type of Medium: Electronic ResourceURL: