Search Results - (Author, Cooperation:T. W. Chen)

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  1. 1
    N. Li ; T. W. Chen ; Z. V. Guo ; C. R. Gerfen ; K. Svoboda
    Nature Publishing Group (NPG)
    Published 2015
    Staff View
    Publication Date:
    2015-03-04
    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:
    Animals ; Behavior, Animal/physiology ; Brain Stem/cytology/physiology ; Electrophysiology ; Mice ; Motor Cortex/cytology/*physiology ; Movement/*physiology ; Neural Pathways/cytology/*physiology ; Pyramidal Cells/cytology/physiology
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
  3. 3
    Staff View
    Publication Date:
    2013-07-23
    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:
    *Action Potentials ; Animals ; Calcium/metabolism ; Calcium-Binding Proteins/*chemistry/genetics ; Cells, Cultured ; Dendritic Spines/metabolism ; Fluorescent Dyes/*chemistry ; GABAergic Neurons/metabolism ; Luminescent Proteins/*chemistry/genetics ; Mice ; Molecular Imaging ; Mutagenesis ; Protein Engineering ; Pyramidal Cells/metabolism/physiology ; Visual Cortex/cytology/physiology
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  4. 4
    Staff View
    Publication Date:
    2018-05-19
    Publisher:
    Institute of Physics (IOP)
    Electronic ISSN:
    1367-2630
    Topics:
    Physics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  5. 5
    Staff View
    Publication Date:
    2018-03-07
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    1098-0121
    Electronic ISSN:
    1095-3795
    Topics:
    Physics
    Keywords:
    Structure, structural phase transitions, mechanical properties, defects
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  6. 6
  7. 7
    Staff View
    Publication Date:
    2018-11-28
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    1098-0121
    Electronic ISSN:
    1095-3795
    Topics:
    Physics
    Keywords:
    Structure, structural phase transitions, mechanical properties, defects
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  8. 8
  9. 9
    Wang, Tahui ; Hsieh, T. H. ; Chen, T. W.

    [S.l.] : American Institute of Physics (AIP)
    Published 1993
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    A study of quantum confinement effects on the low-dimensional electron mobility in various AlGaAs/GaAs quantum well/wire structures has been performed. The influence of the electron envelop wave function and the subband structure on the low-dimensional electron scattering rates is evaluated. The electron transport behavior is studied through a Monte Carlo simulation. The result shows that the low-dimensional electron mobility varies significantly with the quantum well/wire geometry. The one-dimensional electron mobility of 9200 cm2/V s is obtained in a rectangular quantum wire with a geometry of 110 A(ring)×110 A(ring). This value is much improved in comparison with the bulk electron mobility of 8000 cm2/V s in intrinsic GaAs and the maximum two-dimensional electron mobility of 8600 cm2/V s in a 120 A(ring) GaAs quantum well. It is also noticed that the highest low-dimensional electron mobility is achieved in a quantum well/wire structure where the energy separation between the first subband and the second subband is about two polar optical phonon energy.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  10. 10
    Guo, F C ; Teo, L H ; Chen, T W

    Oxford, UK : Blackwell Publishing Ltd
    Published 1995
    Staff View
    ISSN:
    1365-2109
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    This study was carried out to find out the effects of anaesthetics, 2-phenoxyethanol. quinaldine sulphate. MS-222 and metomidate. at various dosages, on the oxygen consumption rates of two size groups of platyfish. Xiphophorus maculatus (Günther) at three temperatures. The results show that the oxygen consumption by the platyfish of both size groups was temperature dependent, being higher at higher temperature, but not size dependent. The effects of anaesthetics on the oxygen consumption rates of platyfish were dosage dependent and temperature dependent, especially for 2-phenoxyethanol, the effect always being significantly greater at lower temperature. Small and large fish did not show much difference in their responses to anaesthetic treatments. However, with 2-phenoxyethanol, the effect on the large platyfish was always better than on the small ones at 20-25°C. At 220-440 ppm and at 20°C, 2-phenoxyethanol was more effective than the other anaesthetics in suppressing oxygen consumption by the platyfish.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  11. 11
    Guo, F-C ; Teo, L-H ; Chen, T-W

    Oxford, UK : Blackwell Publishing Ltd
    Published 1995
    Staff View
    ISSN:
    1365-2109
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    An experiment was carried out to study the effects of anaesthetics (2-phenoxyethanol, quinaldine sulphate, metomedate and MS-222) on water parameters during simulated air transport of platyfish. Xiphophorus maculatus (Günther). The platyfish were put in sealed plastic bags, one-quarter full of water, to which a required amount of anaesthetic was added. The rest of the bag was filled with oxygen. The water in the bag was tested for pH. total ammonia and carbon dioxide at intervals of 4 and 8 h for a period of 48 h. Mortality rates within this period and the post-packaging period were also noted. It was found that 2-phertoxyethanol was most effective, followed by quinaldine sulphate, in decreasing the excretion of metabolic wastes by the fish. Metomidate had no effect in the control of waste production. MS-222 reduced ammonia excretion but not carbon dioxide. None of the anaesthetics used had any effect on the pH of the water.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  12. 12
    Sheu, B.-S. ; Kao, A.-W. ; Cheng, H.-C. ; Hunag, S.-F. ; Chen, T.-W. ; Lu, C.-C. ; Wu, J.-J.

    Oxford, UK : Blackwell Science Ltd
    Published 2005
    Staff View
    ISSN:
    1365-2036
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  13. 13
    Sheu, B.-S. ; Kao, A.-W. ; Cheng, H.-C. ; Hunag, S.-F. ; Chen, T.-W. ; Lu, C.-C. ; Wu, J.-J.

    Oxford, UK : Blackwell Science Ltd
    Published 2005
    Staff View
    ISSN:
    1365-2036
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    Aim : To determine whether an increased dosage of esomeprazole 40 mg twice daily in triple therapy improved the Helicobacter pylori eradication rate for patients with different genotypes of S-mephenytoin 4′-hydroxylase (CYP2C19).Methods : Two hundred H. pylori-infected dyspeptic patients were randomized to receive clarithromycin 500 mg twice daily and amoxicillin 1 g twice daily plus either omeprazole 20 mg or esomeprazole 40 mg twice daily for 1 week. Six weeks later, the success of H. pylori eradication was defined. The genotyping of CYP2C19 in each patient was defined as homologous, heterologous extensive metabolizer or poor metabolizer.Results : The age, gender, drug compliance and proportion of CYP2C19 genotypes were similar between the two groups. The H. pylori eradication rates were also similar between the omeprazole group and the esomeprazole group (intention-to-treat analysis: 79% vs. 86%, P 〉 0.05; per-protocol analysis: 85% vs. 94%, P 〉 0.05). For patients classified as homologous extensive metabolizers, the per-protocol H. pylori eradication rate was significantly higher in the esomeprazole group than in the omeprazole group (93% vs. 76%, P 〈 0.05).Conclusion : Esomeprazole 40 mg twice daily for triple therapy may improve the H. pylori eradication compared to omeprazole-based therapy, but only for homologous extensive metabolizers of CYP2C19.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  14. 14
    Chen, T.-W. ; Pinto, N.G. ; van Brocklin, L.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0021-9673
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  15. 15
    Staff View
    ISSN:
    0009-9120
    Keywords:
    amylase ; dialysis ; isoamylase ; lipase ; uremia
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  16. 16
    Ernst, A. ; Chen, T. -W. ; Böger, P.
    Springer
    Published 1987
    Staff View
    ISSN:
    1432-1939
    Keywords:
    Cyanobacteria ; Nostoc commune ; Structural carbohydrates ; Glycogen ; Sheath
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    Summary In the terrestrial cyanobacterium Nostoc commune Vauch. formation of carbohydrate polymers was measured upon rewetting the mats in a light-dark regime. To discriminate between carbohydrates of different physiological function, total carbohydrate was determined as anthrone-reactive material (ARM) and storage carbohydrate (glycogen) assayed by an enzymic test. In the dry thalli glycogen was found to represent less than one tenth of the ARM. After rewetting an increase of total carbohydrate was observed in illuminated samples. Only glycogen, however, showed a regular pattern of synthesis and degradation during a 12:12 h light-dark cycle. This indicates that most carbohydrates detected by anthrone belong to the metabolically inert sheath material. When illuminated colonies were kept submerged after rewetting glycogen was hydrolyzed indicative of being used in the rapid recovery of cellular functions as observed in rewetted colonies. Apparently, photosynthesis allowed for net glycogen synthesis only, provided the mats were sufficiently aerated. These findings give evidence that the (carbohydrate) sheath plays an important role in water retention in an organism bound to a terrestrial habitat.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses