Search Results - (Author, Cooperation:H. Sheng)
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1E. J. Benner ; D. Luciano ; R. Jo ; K. Abdi ; P. Paez-Gonzalez ; H. Sheng ; D. S. Warner ; C. Liu ; C. Eroglu ; C. T. Kuo
Nature Publishing Group (NPG)
Published 2013Staff ViewPublication Date: 2013-04-26Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Astrocytes/*cytology/*metabolism ; Brain Injuries/*metabolism/*pathology ; Cell Lineage ; Cell Movement ; Cerebral Cortex/cytology/metabolism/pathology ; Cerebral Ventricles/*cytology ; Cicatrix/metabolism/pathology ; Endocytosis ; Mice ; Mice, Knockout ; NFI Transcription Factors/metabolism ; Neural Stem Cells/cytology ; Neuroglia/cytology/metabolism/pathology ; Receptor, Notch1/*metabolism ; Signal Transduction ; Thrombospondins/deficiency/genetics/*metabolismPublished by: -
2Staff View
Publication Date: 2014-08-15Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Q. Zeng ; H. Sheng ; Y. Ding ; L. Wang ; W. Yang ; J. Z. Jiang ; W. L. Mao ; H. K. Mao
American Association for the Advancement of Science (AAAS)
Published 2011Staff ViewPublication Date: 2011-06-18Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
4Che, J., Wang, Z., Sheng, H., Huang, F., Dong, X., Hu, Y., Xie, X., Hu, Y.
Royal Society
Published 2018Staff ViewPublication Date: 2018-07-05Publisher: Royal SocietyElectronic ISSN: 2054-5703Topics: Natural Sciences in GeneralKeywords: medicinal chemistry, computer-aided designPublished by: -
5Lin, S., Dikler, S., Blincoe, W. D., Ferguson, R. D., Sheridan, R. P., Peng, Z., Conway, D. V., Zawatzky, K., Wang, H., Cernak, T., Davies, I. W., Di; Rocco, D. A., Sheng, H., Welch, C. J., Dreher, S. D.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-08-10Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyGeosciencesComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: ChemistryPublished by: -
6Fain, Benjamin ; Lin, Sheng H.
College Park, Md. : American Institute of Physics (AIP)
Published 1990Staff ViewISSN: 1089-7690Source: AIP Digital ArchiveTopics: PhysicsChemistry and PharmacologyNotes: In femtosecond laser-pulse experiments the pump pulse, with duration comparable or shorter than a typical period of intra- or intermolecular vibrations, creates a nonstationary wave packet. In this paper we use the density-matrix method to analyze creation of space–time coherences by the pump pulse and their effect on the probe pulse. Expressions for the density-matrix jumps, induced by the probe pulse, have been obtained in a general case. The material equations, determining propagation of the probe pulse, have been derived.Type of Medium: Electronic ResourceURL: -
7Fain, Benjamin ; Lin, Sheng H.
College Park, Md. : American Institute of Physics (AIP)
Published 1989Staff ViewISSN: 1089-7690Source: AIP Digital ArchiveTopics: PhysicsChemistry and PharmacologyNotes: A theory of the explosive desorption, observed by Chuang and Domen [Phys. Rev. Lett. 59, 1484 (1987); J. Vac. Sci. Technol. A 5, 473 (1987); J. Chem. Phys. (90, 3318 1989; Chem. Phys. Lett. (with A. Mödl). (154, 187 (1989)] is developed. When adsorbates are subjected to UV laser action, an explosive, molecular nonselective desorption takes place. This phenomenon is explained as follows: adsorbate molecules are excited by an UV laser to the higher electronic states. The electronic energy is delivered to the low energy vibronic states. The energy differences of these states are resonant to the corresponding phonon modes. This leads to the excitation of these phonons. When the energy input to the phonon modes exceeds their decay, phonon numbers start to increase exponentially. The phonon avalanche takes place. This in turn causes molecular nonselective desorption. The main result of the theory is the finding of the fluence and coverage dependent threshold conditions.Type of Medium: Electronic ResourceURL: -
8Sheng, H. Z. ; Rosbo, N. Kerlero ; Carnegie, P. R. ; Bernard, C. C. A.
Oxford, UK : Blackwell Publishing Ltd
Published 1989Staff ViewISSN: 1471-4159Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract: A developmental study of myelin basic protein (MBP) variants in eight regions of pig nervous system (NS) was performed using a quantitative electroimmunoblotting procedure. Four major MBP forms with apparent molecular weights of 21.5K, 20.2K, 18.5K, and 17.3K were identified in both the CNS and the PNS and were detected as early as 22 days before birth. Quantification of the most abundant forms, the 21.5K and 18.5K MBPs, revealed characteristic profiles of accumulation of these two variants in different regions of the NS. The ratio of 21.5K:18.5K MBP varied with developmental time as well as with the various NS regions, peaking 20 days postnatally. The 17.3K MBP was observed from embryonic stages to adulthood, as were the 21.5K and 18.5K forms. In contrast, the 20.2K variant appeared most abundant from 10 days before to 22 days after birth and thereafter decreased in intensity so as to be no longer detectable in the brain of a 5-year-old pig. A similar pattern was also observed with an anti-MBP-reacting protein with an apparent molecular weight of 23K. Taken together, these results suggest that in the pig NS, the expression of MBP variants may be regulated both regionally and developmentally.Type of Medium: Electronic ResourceURL: -
9Staff View
ISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The effects of temperature on the amorphization of Zr–Al solid solutions have been investigated by ball milling Zr100−xAlx powder blends at different temperatures. At low milling temperatures, the Zr–Al solid solutions amorphized under the polymorphic constraint imposed by intensive external forcing. At elevated temperatures, the solid solution and the amorphous phases coexisted in an obvious two-phase region, signaling a transition approaching two-phase metastable equilibrium. The Al concentration needed for the complete amorphization of Zr–Al increased with increasing milling temperature. These observations, and in particular, the apparent reentrant liquidus, can be explained in terms of the temperature dependence of the external forcing effects brought in by the nonequilibrium milling process in this dynamic driven system. © 1999 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
10Sheng, H. ; Muthukumar, S. ; Emanetoglu, N. W. ; Lu, Y.
Woodbury, NY : American Institute of Physics (AIP)
Published 2002Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: Silver Schottky contacts were fabricated on (112¯0) n-ZnO epilayers, which were grown on R-plane sapphire substrates by metalorganic chemical-vapor deposition. The flatband barrier height was determined to be 0.89 and 0.92 eV by current–voltage and capacitance–voltage measurements, respectively. The ideality factor was found to be 1.33. © 2002 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
11Ohgi, T. ; Sheng, H.-Y. ; Dong, Z.-C. ; Nejoh, H. ; Fujita, D.
Woodbury, NY : American Institute of Physics (AIP)
Published 2001Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: Strong interaction of gold with the terminal sulfur atoms of dithiol molecules on Au(111) effectively suppresses the penetration of deposited Au atoms through the dithiol layer and results in the formation of homogeneous Au nanoclusters. These nanoclusters, 10–15 Å (σ〈2 Å) in height, spread over the surface with a density of ∼1.2×1013/cm2 for coverage between 0.25–2.5 monolayers. Decoupling of the clusters from Au(111) by the octanedithiol layer (∼12 Å in thickness) and the small self-capacitance of these nanoparticles (10−19–10−18 F) make it possible to observe both the Coulomb blockade in scanning tunneling spectroscopy and the Au 4f core level shifts in x-ray photoelectron spectroscopy at room temperature. Both phenomena can be attributed to a common physical origin—e2/2C—the Coulomb energy of charged particles. © 2001 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
12Staff View
ISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: We performed calorimetric measurements of the enthalpy of formation of amorphous alloys created using vapor quenching in a highly immiscible system, Ag–Ni. The low-enthalpy states observed, as compared with extrapolated liquids and crystalline solid solutions, are in agreement with the findings from molecular dynamics (MD) simulations. The MD results support the proposition that the enthalpy reduction is associated with the ultra-fine-scale phase separation in the liquid/amorphous state. © 2001 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
13Nguyen, Thanh Lam ; Mebel, Alexander M. ; Lin, Sheng H.
College Park, Md. : American Institute of Physics (AIP)
Published 2001Staff ViewISSN: 1089-7690Source: AIP Digital ArchiveTopics: PhysicsChemistry and PharmacologyNotes: The O(1D and 3P)+SiH4 reactions have been studied using ab initio/Rice–Ramsperger–Kassel–Marcus calculations to investigate possible formation mechanisms of various products in combustion and chemical vapor deposition processes. The relative branching ratios for various products formed through the O(1D)+SiH4 reaction involving the long-lived H3SiOH intermediate are calculated as 55.5% for the H2SiO/HSiOH+2H channel, 28.4% for the SiO+2H2 channel, 9.9% for the OH+SiH3 channel, 3.2% for the H2O+SiH2 channel, and 3.0% for the HSiO/SiOH+H2+H channel. These results significantly differ from those obtained in experiment, implying that the O(1D)+SiH4 reaction can take place through a mechanism other than the insertion mechanism. While the O(3P)+SiH4 reaction takes place by the abstraction mechanism, the O(1D)+SiH4 reaction can occur through both insertion and addition/abstraction mechanisms. The addition/abstraction mechanism occurring on the first excited potential energy surface is demonstrated to provide a significant contribution to the reaction products and to account for the forward scattering of the OH products observed in experiment. Finally, heats of formation for various species involving Si atom are computed employing the Gaussian 3 theory. © 2001 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
14Staff View
ISSN: 0020-1693Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyType of Medium: Electronic ResourceURL: -
15Staff View
ISSN: 0005-2760Keywords: Arachidonic acid ; Correlation coefficient ; Essential fatty acid ; Phospholipid ; TriacylglycerolSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyMedicinePhysicsType of Medium: Electronic ResourceURL: -
16Luo, W. K. ; Alamgir, F. M. ; Bai, J. M. ; Sheng, H. W. ; Ma, E.
[s.l.] : Nature Publishing Group
Published 2006Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] Unlike the well-defined long-range order that characterizes crystalline metals, the atomic arrangements in amorphous alloys remain mysterious at present. Despite intense research activity on metallic glasses and relentless pursuit of their structural description, the details of how the atoms are ...Type of Medium: Electronic ResourceURL: -
17Kay, B.K. ; Adey, N.B. ; Yun-Sheng, H. ; Manfredi, J.P. ; Mataragnon, A.H. ; Fowlkes, D.M.
Amsterdam : ElsevierStaff ViewISSN: 0378-1119Keywords: Recombinant DNA ; epitope mapping ; immunoglobulins ; phage display ; random peptide library ; streptavidinSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyType of Medium: Electronic ResourceURL: -
18Staff View
ISSN: 0022-2828Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: MedicineType of Medium: Electronic ResourceURL: -
19Staff View
ISSN: 0022-2828Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: MedicineType of Medium: Electronic ResourceURL: -
20Staff View
ISSN: 0022-2828Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: MedicineType of Medium: Electronic ResourceURL: