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  • 1
    Online Resource
    Online Resource
    Advances in Precision Laser Spectroscopy. (2022)
    Berlin/Boston :De Gruyter, Inc.,
    Details
    Keywords: Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (402 pages)
    Edition: 1st ed.
    ISBN: 9783110304473
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=5156328
    Language: English
    Note: Intro -- Introduction to editor-in-chief Jie Zhang -- Preface -- Contents -- 1 Cold atoms physics -- 2 Cold molecular physics -- 3 Optical frequency standards based on trapped single ions -- 4 Precision measurement based on atomic, molecular, and optical physics -- Index.
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  • 2
    Online Resource
    Online Resource
    Advances in New Catalytic Materials. (2010)
    Zurich :Trans Tech Publications, Limited,
    Details
    Keywords: Electronic books.
    Description / Table of Contents: Selected, peer reviewed papers from the Second International Symposium on New Catalytic Materials, Cancún, Mexico, 16-20 August, 2009.
    Type of Medium: Online Resource
    Pages: 1 online resource (300 pages)
    Edition: 1st ed.
    ISBN: 9783038133988
    Series Statement: Advanced Materials Research Series ; v.Volume 132
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=1872466
    DDC: 541.395072
    Language: English
    Note: Intro -- Advances in New Catalytic Materials -- Preface and Committees -- Table of Contents -- Plenary Lecture -- Nanostructured Materials for Hydrogen Storage -- Catalysts Synthesis and Characterization -- Influences of Surface Chemistry on Dehydrogenation Kinetics of Ammonia Borane in Porous Carbon Scaffold -- Observation on the Structure of Ordered Mesoporous Materials at High Temperature via In Situ X-Ray Diffraction -- Synthesis of Si-Based Mesoporous Materials with Different Structural Regularity -- Comparative Studies of the CoMo/MgO, CoMo/Al2O3 and CoMo/MgO-MgAl2O4 Catalysts Prepared by a Urea-Matrix Combustion Method -- ZnAlFe Mixed Oxides Obtained from LDH Type Materials as Basic Catalyst for the Gas Phase Acetone Condensation -- Structure Sensitivity of Sol-Gel Alkali Tantalates, ATaO3 (A= Li, Na and K): Acetone Gas Phase Condensation -- Phase Stabilization of Mesoporous Mn-Promoted ZrO2: Influence of the Precursor -- Environmental Catalysis -- Promotional Effect of Gadolinia on CuO Catalyst for Reduction of NO by Activated Carbon -- Synthesis and Photocatalytic Performance of Hierarchical Porous Titanium Phosphonate Hybrid Materials -- Role of Nanocrystalline Titania Phases in the Photocatalytic Oxidation of NO at Room Temperature -- Chitin/TiO2 Composite for Photocatalytic Degradation of Phenol -- Catalysts for Petroleum Hydrotreating -- Catalytic Properties of Ni-Mo Carbide and Nitride Phases Supported on SBA-15 and -16 in the Hydrodesulfurization of DBT -- Oxidative Removal of Dibenzothiophene by H2O2 over Activated Carbon-Supported Phosphotungstic Acid Catalysts -- Adsorptive Removal of Dibenzothiophene in Diesel Fuel on an Adsorbent from Rice Hull Activated by Phosphoric Acid -- Adsorption of Dibenzothiophene on Transition Metals Loaded Activated Carbon -- Catalysts for Petroleum Refining. , Studies on the Catalytic Activity of Sulfated Zirconia Promoted with Cerium Oxide -- Isomerization of Pinene with Al- and Ga-Modified MCM-41 Mesoporous Materials -- Yb2O3 Promoted Pt-SO42-/ZrO2-Al2O3 Catalyst in N-Hexane Hydroisomerization -- Effect of Hydrothermal Conditions on Isomerization Activity of Pt/SO42--ZrO2 -- Alkylation of Benzene with Propylene over H3PW12O40 Supported on MCM-41 and -48 Type Mesoporous Materials -- Catalysts for Fuel Production -- Hydrogen Production by Steam Reforming of Methanol over a Ag/ZnO One Dimensional Catalyst -- Basic Ion Exchange Resins as Heterogeneous Catalysts for Biodiesel Synthesis -- A Novel La2O3-ZnO/ZrO2 Solid Superbase and its Catalytic Performance for Transesterification of Soybean Oil to Biodiesel -- Refinery Oil Fraction Fuels Obtained from Polyethylene Catalytic Cracking Employing Heteropolyacid-MCM-41 Materials -- Synthesis Optimization of SAPO-34 in the Presence of Mixed Template for MTO Process -- Studies on Cobalt-Based Catalyst to Synthesize Heavy Hydrocarbons -- Electrocatalysis -- A Novel Non-Metal Oxygen Reduction Electrocatalyst Based on Platelet Carbon Nanofiber -- Enhanced Electrochemical Oxidation of BH4− on Pt Electrode in Alkaline Electrolyte with the Addition of Thiourea -- Pd Nanoparticles Supported on TiO2 Nanotubes for Ethanol Oxidation in Alkaline Media -- Keywords Index -- Authors Index.
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  • 3
    Online Resource
    Online Resource
    Associative Memory Cells : Basic Units of Memory Trace. (2019)
    Singapore :Springer Singapore Pte. Limited,
    Details
    Keywords: Memory-Physiological aspects. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (281 pages)
    Edition: 1st ed.
    ISBN: 9789811395017
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=5894521
    DDC: 612.82
    Language: English
    Note: Intro -- Preface -- Acknowledgement -- Contents -- About the Author -- Chapter 1: History in the Study of Learning and Memory -- 1.1 Introduction -- 1.2 Memory Traces -- 1.3 Engrams -- 1.4 The Location and Distribution of Memory Traces or Engrams -- 1.5 The Identification of Basic Units in Engrams: Memory-Relevant Cells -- 1.6 Biophysical Changes in Memory-Relevant Cells: Neuronal and Synaptic Plasticity -- 1.7 Memory-Specific Activity Patterns as Basic Units of Memory Traces -- 1.8 The Recruitment of Memory-Relevant Neurons by Their Coactivation: Associative Memory Cells -- 1.9 Major Milestones in the Study of Mechanisms Underlying Learning and Memory -- 1.9.1 Theoretical Modeling -- 1.9.2 Animal Model -- 1.9.3 Location and Distributions -- 1.9.4 Cellular Architectures in Engram Circuits -- 1.9.5 Molecular Mechanisms -- References -- Chapter 2: Patterns of Learning and Memory -- 2.1 Introduction -- 2.2 Associative Learning and Nonassociative Learning -- 2.3 Declarative (Explicit) Memory Versus Nondeclarative (Implicit) Memory -- 2.3.1 Declarative Memory -- 2.3.2 Nondeclarative Memory -- 2.4 Episodic Memory Versus Semantic Memory -- 2.4.1 Episodic Memory -- 2.4.2 Semantic Memory -- 2.5 Working Memory and Perceptual Memory -- 2.5.1 Working Memory -- 2.5.2 Perceptual Memory -- 2.6 Eidetic Memory and False Memory -- 2.6.1 Eidetic Memory -- 2.6.2 False Memory -- 2.7 Other Types of Memory -- 2.8 Learning and Memory in Relevance to Ages -- References -- Chapter 3: Experimental Models and Strategies for Studying Associative Learning and Memory -- 3.1 Introduction -- 3.2 Experimental Models Used to Track Engrams -- 3.2.1 Classical Conditioning -- 3.2.2 Operant Conditioning -- 3.2.3 Spatial Learning and Memory -- 3.2.4 Associative Learning and Memory in Reciprocal Manner -- 3.3 Strategies Used to Track Memory Cells in Engrams. , 3.3.1 Theoretical Modeling from Memory Traces to Cell Assemblies -- 3.3.2 Parallel Changes Between Engrams and Memory-Relevant Behaviors -- 3.3.3 Downregulation of Neural Substrates -- 3.3.4 Upregulation of Neural Substrates -- References -- Chapter 4: Cellular and Molecular Changes in Associative Memory -- 4.1 Introduction -- 4.2 Synapses, Neurons, and Their Functional Changes -- 4.3 Synaptic Plasticity -- 4.3.1 Synaptic Facilitation -- 4.3.2 Long-Term Potentiation of Synaptic Transmission -- 4.4 Neuronal Plasticity -- References -- Chapter 5: Associative Memory Cells in Memory Trace -- 5.1 Introduction -- 5.2 Associative Memory Cells in Theory and Experiments -- 5.3 Associative Memory Cells in Sensory Cortices -- 5.4 Associative Memory Cells in Cognition- and Emotion-Related Brain Areas -- 5.5 Memory Output Cells in Behavior-Related Brain Areas -- References -- Chapter 6: Plasticity of Associative Memory Cells -- 6.1 Introduction -- 6.2 Plasticity at Primary Associative Memory Cells Linked with Their Recruitment -- 6.3 Plasticity at Secondary Associative Memory Cells -- 6.4 Plasticity at Memory Output Cells -- 6.5 Summary About Plasticity at Associative Memory Cells -- 6.6 Associative Memory Cells Are Modulated by the Arousal System -- References -- Chapter 7: Working Principles of Associative Memory Cells -- 7.1 Introduction -- 7.2 Associative Memory Cells in Their Circuits and Functions -- 7.3 Associative Memory Cells for Intramodal Associative Memory -- 7.4 Associative Memory Cells for Cross-Modal Associative Memory -- 7.5 Associative Memory Cells for Memory Efficiency and Cognition -- References -- Chapter 8: Associative Memory Cells in Physiological Psychology -- 8.1 Introduction -- 8.2 Associative Memory Cells in Various Memory Patterns -- 8.2.1 Associative Memory Cells for Declarative and Nondeclarative Memory. , 8.2.2 Associative Memory Cells for Episodic and Semantic Memory -- 8.2.3 Associative Memory Cells for Eidetic Memory and False Memory -- 8.2.4 Associative Memory Cells for Working Memory and Perceptual Memory -- 8.2.5 Associative Memory Cells in Age-Relevant Memory -- 8.3 Associative Memory Cells for Emotional Memory -- 8.4 Associative Memory Cells for Cognitive Processes -- 8.4.1 Associative Thinking -- 8.4.2 Logical Reasoning -- 8.4.3 Imagination -- References -- Chapter 9: The Impacts of Associative Memory Cells on Pathology -- 9.1 Introduction -- 9.2 General Information About Associative Memory Cells -- 9.3 Associative Memory Cells in Psychiatric Disorders -- 9.3.1 Fear Memory and Anxiety -- 9.3.2 Depression and Memories to Negative Outcomes -- 9.3.3 Weird Memory and Schizophrenia -- 9.4 Associative Memory Cells in Neurodegenerative Diseases -- References.
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  • 4
    Online Resource
    Online Resource
    Associative Memory Cells: Basic Units of Memory Trace (2019)
    Singapore : Springer
    Details Availability
    Keywords: Cytology ; Medicine ; Neurosciences ; Cell biology. ; Molecular biology. ; Memory physiology ; Neuronal Plasticity ; Association Learning ; Paired-Associate Learning ; Models, Neurological
    Description / Table of Contents: History in the study of learning and memory -- Patterns of learning and memory -- Experimental models and strategies for studying associative learning and memory -- Cellular and molecular changes in associative memory -- Associative memory cells in memory trace -- Plasticity of associative memory cells -- Working principles of associative memory cells -- Associative memory cells in physiological psychology -- The impacts of associative memory cells on pathology
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (XIII, 275 p. 17 illus., 16 illus. in color)
    Edition: 1st ed. 2019
    ISBN: 9789811395017
    Series Statement: Springer eBooks
    URL: https://doi.org/10.1007/978-981-13-9501-7
    DOI: 10.1007/978-981-13-9501-7
    Language: English
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  • 5
    Electronic Resource
    Electronic Resource
    Carbon-13 and proton chemical shift assignments and proton-fluorine-19 spin-spin coupling constants in oligosaccharides and fluorinated oligosaccharides by two-dimensional carbon-13-proton chemical shift correlation spectroscopy with proton homonuclear decoupling (1984)
    s.l. : American Chemical Society
    The @journal of organic chemistry 49 (1984), S. 4358-4363 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00197a006
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  • 6
    Electronic Resource
    Electronic Resource
    Combined effect of isotopic substitution, temperature, and magnetic field on the lifetimes of triplet biradicals (1990)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 94 (1990), S. 1144-1146 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100366a025
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  • 7
    Electronic Resource
    Electronic Resource
    Speed response analysis of an electron-transfer multiple-quantum-well waveguide modulator (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 4669-4679 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A numerical model is presented for the electronic properties of a novel InxGa1−xAs/In1−yAlyAs multiple-quantum-well waveguide modulator and a theoretical analysis of electron and hole escape mechanisms from the quantum well is developed. The influence of carriers and dopant ion charges on the band structure is simulated with a self-consistent Poisson–Schrödinger solver. The different escape mechanisms for both electrons and holes are: direct tunneling, phonon-assisted sequential tunneling, and thermionic emission. At high forward biases, the electron escape time limits the device speed, while at high reverse biases, heavy holes take a longer time than electrons for escaping the quantum well. For both particles, phonon-assisted sequential tunneling is a key mechanism in determining the device speed operation. The calculated escape times are in good agreement with the experimental data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.352762
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  • 8
    Electronic Resource
    Electronic Resource
    Serological Responses of FldA and Small-Molecular-Weight Proteins of Helicobacter pylori: Correlation with the Presence of the Gastric MALT Tissue (2004)
    Oxford, UK : Blackwell Science Ltd
    Helicobacter 9 (2004), S. 0 
    Details
    ISSN: 1523-5378
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Purpose.  We tested whether the serological response to Flavodoxin-A (FldA) protein and anti-Helicobacter pylori immunoblots correlated to the degree of mucosa-associated lymphoid tissue (MALT) in the stomach.Methods.  Eighty H. pylori-infected patients with different degrees of MALT in the stomach were investigated with serum sampling and endoscopy on enrolment, the 2nd and the 12th months after anti-H. pylori therapy. All sera were tested for the anti-FldA protein and anti-H. pylori immunoblots, including 19.5, 26.5, 30, 35, 89, and 116 KDa (CagA). Regression of follicular gastritis was assessed by histology.Results.  Patients with dense lymphoid follicles had higher prevalence rates of anti-FldA protein, 19.5, 26.5, and 30 KDa antibodies of H. pylori (p 〈 .05). Histologic downgrade of MALT was observed in 25% (10/40) of patients in the 2nd month and in 60% (23/38) in the 12th month after H. pylori therapy. After H. pylori eradication, the patients with MALT and dense lymphoid follicles had significantly negative seroconversions of 19.5, 26.5, 30, and 35 KDa antibodies (p 〈 .05), but not of CagA and FldA.Conclusion.  Patients with gastric MALT and dense lymphoid follicles had different anti-H. pylori serological responses to those with scanty or an absence of lymphoid follicles. The negative seroconversion of the smaller-molecular-weight proteins, but not CagA and FldA, may correlate with the regression of MALT by H. pylori eradication.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1083-4389.2004.00201.x
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  • 9
    Electronic Resource
    Electronic Resource
    Clinical Application of 20 MHz Endosonography and Anti-Helicobacter pylori Immunoblots to Predict Regression of Low-grade Gastric MALToma by H. pylori Eradication (2003)
    Oxford, UK : Blackwell Science Ltd
    Helicobacter 8 (2003), S. 0 
    Details
    ISSN: 1523-5378
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aim. We tested whether serial 20 MHz endosonography (EUS) and anti-Helicobacter pylori immunoblots can predict the complete regression of gastric MALToma by H. pylori eradication.Methods. The serums of 17 MALToma patients, including 15 with low grade and two with high grade, were collected before therapy. Fifteen patients with low-grade MALToma and 18 nonMALToma patients, all infected with H. pylori, have been followed with serum sampling, endoscopy, and EUS on enrollment, on the 2nd, 6th, and 12th months after anti-H. pylori therapy. All sera were tested for anti-H. pylori immunoblots, including 19.5, 26.5, 30, 35, 89, 116 KDa (CagA), FldA. The DNAs were extracted serially from the biopsy of MALToma patients before and after therapy to perform polymerase chain reaction (PCR) for the immunoglobulin heavy-chain gene monoclonality.Results. MALToma patients had higher prevalence rates of anti-FldA protein, 19.5 and 30 KDa antibodies of H. pylori (p 〈 0.01). After H. pylori eradication, MALToma patients had negative seroconversion of 19.5, 26.5, 30, and 35 KDa antibodies (p 〈 0.05), but not in CagA and FldA. The PCR monoclonality occurred in 80% (12/15) of the MALToma patients before therapy, but did not correlate with any seroconversion of anti-H. pylori immunoblots after therapy (p 〉 0.05). Complete regression of MALToma was observed in 73.3% (11/15) of patients. Evaluation with 20 MHz EUS, for the initial tumor depth and its normalization on the 6th month had 90.9% sensitivity and 100% specificity to predict the complete regression.Discussion. The negative seroconversions of the smaller-molecular-weight proteins, but not CagA and FldA, correlate with regression of MALToma by H. pylori eradication. 20 MHz EUS can effectively predict the therapeutic response of MALToma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1523-5378.2003.00122.x
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  • 10
    Electronic Resource
    Electronic Resource
    (Pr, Co, Nb)-Doped SnO2 Varistor Ceramics (2005)
    Oxford, UK : Blackwell Science Inc
    Journal of the American Ceramic Society 88 (2005), S. 0 
    Details
    ISSN: 1551-2916
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The effect on microstructure and electrical properties of (Co, Nb)-doped SnO2 varistors upon the addition of Pr2O3 was investigated by scanning electron microscopy and by determining I–V, ɛ–f, and R–f relations. The threshold electric field of the SnO2-based varistors increased significantly from 850 to 2280 V/mm, and the relative dielectric constants of the SnO2-based varistors decreased greatly from 784 to 280 as Pr2O3 concentration was increased up to 0.3 mol%. The significant decrease of the SnO2 grain size, from 4.50 to 1.76 μm with increasing Pr2O3 concentration over the range of 0–0.3 mol%, is the origin for the increase in the threshold voltage and decrease of the dielectric constants. The grain size reduction is attributed to the segregation of Pr2O3 at grain boundaries hindering the SnO2 grains from conglomerating into large particles. Varistors were found to have a superhigh threshold voltage and a comparatively large nonlinear coefficient α. For 0.15 mol% Pr2O3-doped sample, threshold electric field and nonlinear coefficient α were measured to be 1540 V/mm and 61, and for 0.3 mol% Pr2O3-doped sample, V and α were 2150 V/mm and 42, respectively. Superhigh threshold voltage and large nonlinear coefficient α qualify the Pr-doped SnO2 varistor as an excellent candidate for a high voltage protection system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1551-2916.2005.00095.x
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