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  • 1
    Online Resource
    Online Resource
    Singapore :Springer,
    Keywords: Urban ecology (Biology). ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (474 pages)
    Edition: 1st ed.
    ISBN: 9789811991233
    DDC: 577.56
    Language: English
    Note: Intro -- Preface -- Contents -- Part I Theoretical Framework -- 1 Connotations of Urban Metabolism -- 1.1 The Concept of an Urban Organism and Ecosystem -- 1.2 Multi-level Similarity of Urban Systems to Organisms -- 1.2.1 Similarity of the Structural Hierarchy -- 1.2.2 Similarity of the Functional Mechanisms -- 1.3 Evolution of the Concept of an Urban Metabolism -- 1.4 Urban Metabolic Processes -- 1.4.1 Metabolic Phases -- 1.4.2 External and Internal Flows -- 1.4.3 Anabolism, Catabolism, and Regulatory Metabolism -- 1.4.4 Metabolic Linkages -- 1.4.5 Metabolic Chains -- 1.4.6 Classification of the Metabolic Actors -- 1.4.7 Characteristics of the Metabolic Actors -- 1.5 Urban Metabolic Characteristics -- 1.5.1 Growth and Development -- 1.5.2 Openness and Dependency -- 1.5.3 Stability and Robustness -- References -- 2 Progress in Urban Metabolism Research -- 2.1 The Significance of Urban Metabolism Research -- 2.1.1 Feasibility -- 2.1.2 Necessity -- 2.1.3 Urgency -- 2.2 CiteSpace Knowledge Mapping Analysis -- 2.2.1 The Number of Publications -- 2.2.2 Collaborative Network Analysis -- 2.2.3 Discipline Co-occurrence Analysis -- 2.3 Research Frontier Analysis -- 2.3.1 Timeline Analysis -- 2.3.2 Cluster Analysis -- 2.3.3 Burst Analysis -- 2.3.4 Cluster Analysis for Co-cited References -- 2.3.5 Analysis of High-Frequency Co-cited Literature -- 2.4 Development Stage of Urban Metabolism Research -- 2.4.1 Early Period (1965-1980) -- 2.4.2 Slow Growth Period (1981-2000) -- 2.4.3 Rising Period (2001-Present) -- 2.5 Historical Evolution of Urban Metabolism Research -- 2.5.1 Accounting Evaluation Methods -- 2.5.2 Model Simulation -- 2.5.3 Application Research -- 2.5.4 Scales and Boundaries -- References -- 3 Theory, Paradigms, and Technical Methods for Urban Metabolism -- 3.1 Composite Ecosystem Theory -- 3.1.1 Natural Subsystem -- 3.1.2 Socioeconomic Subsystem. , 3.1.3 Structural Features -- 3.1.4 Balance Between Pressure and Support -- 3.2 Thermodynamics Theory -- 3.2.1 Vitality Metabolism -- 3.2.2 Entropy -- 3.3 System Ecology Theory -- 3.3.1 Integration of Holism and Reductionism -- 3.3.2 Urban Metabolism Research Based on Systems Ecology -- 3.4 Research Paradigms -- 3.4.1 The Relationship Among the Three Research Paradigms -- 3.4.2 Natural Metabolism -- 3.4.3 Socioeconomic Metabolism -- 3.4.4 Integrated (Hybrid) Natural and Socioeconomic Metabolism Paradigm -- 3.5 Technical Framework -- References -- Part II Methods -- 4 Accounting Evaluation of Urban Metabolism -- 4.1 Material Flow Analysis -- 4.1.1 Flow Accounting -- 4.1.2 Stock Accounting -- 4.2 Substance Flow Analysis -- 4.2.1 Carbon Accounting -- 4.2.2 Nitrogen Accounting -- 4.3 Emergy Analysis -- 4.4 Measuring the system's Evolution -- 4.4.1 Measurement Index System -- 4.4.2 Information Entropy Index -- 4.4.3 Harmonious Development Model -- 4.5 Measuring Interactions Between the Natural and Socioeconomic Systems -- 4.5.1 Measurement Index System -- 4.5.2 Sustainability Index -- References -- 5 Network Models to Simulate Urban Metabolism -- 5.1 Network Models Based on Physical Metabolism -- 5.1.1 Urban Water Metabolic Network Models -- 5.1.2 Urban Energy Metabolic Network Models -- 5.1.3 Urban Carbon and Nitrogen Metabolic Network Models -- 5.1.4 Urban Material Metabolic Network Models -- 5.1.5 Urban Emergy Metabolic Network Models -- 5.2 Spatially Explicit Models Based on Land Use and Cover Change -- 5.2.1 Principles for Developing Spatially Explicit Carbon Metabolic Network Models -- 5.2.2 Spatially Explicit Models of an Urban Carbon Metabolic Network -- 5.3 Network Models Based on Input-Output Tables -- 5.3.1 Development of an Input-Output Table -- 5.3.2 Compilation of the Input-Output Table Based on the Material Consumption Intensity Coefficient. , 5.3.3 Analogy Between Trophic Levels and Metabolic Network Models -- 5.3.4 Compilation of the Input-Output Table Based on the Energy Consumption Intensity Coefficient -- 5.4 Simulation of Network Characteristics -- 5.4.1 Network Structure Simulation -- 5.4.2 Network Function Simulation -- 5.4.3 Network Path Simulation -- References -- 6 Regulation and Optimization of an Urban Metabolism -- 6.1 Factor Decomposition Models -- 6.1.1 Decomposition Model for an Urban Carbon Metabolism -- 6.1.2 Refine the Decomposition Model for the Social and Economic Factors -- 6.1.3 Classification Model for Energy-Related Carbon Emission -- 6.1.4 Decomposition Model for an Urban Nitrogen Metabolism -- 6.1.5 Decomposition Model of Material Metabolism -- 6.2 Decoupling State Criteria -- 6.3 Center of Gravity Model -- 6.4 System Dynamics Simulation Model -- 6.4.1 Optimization Model for a City's Industrial Structure -- 6.4.2 Optimization Model for Human Carrying Capacity -- References -- Part III Applications -- 7 Analysis of Material Metabolic Process: Urban Weight -- 7.1 Urban Weight Analysis from a Flow Perspective -- 7.1.1 Analysis of Urban Flows' Weight and Its Structure -- 7.1.2 Contributions of the Metabolic Components -- 7.1.3 Identification of the Driving Forces Behind the Urban Weight -- 7.1.4 The Significance of Measuring Urban Weight from the Flow Perspective -- 7.1.5 Comparisons with Other Cities -- 7.1.6 Diagnosis of and Solutions to Material Metabolism Problems in Beijing -- 7.2 Urban Weight Analysis for Beijing from the Perspective of Stocks -- 7.2.1 Analysis of Urban Stocks' Weight and Its Structure -- 7.2.2 Structural Analysis of the Stock Subtypes -- 7.2.3 Changes in the Relationship Between the Weights and Socioeconomic Factors -- 7.2.4 The Significance of Measuring Urban Weight from the Stock Perspective -- 7.2.5 Comparison with Other Research. , 7.2.6 Diagnosis of Metabolic Disorders in Beijing from a Stock Perspective and Recommended Solutions -- 7.3 Identification of Key Entities in Beijing's Material Metabolism -- 7.3.1 Relevance Analysis -- 7.3.2 Analysis of the Ecological Relationships -- 7.3.3 Identifying the Key Actors -- 7.3.4 Conclusions and Prospects -- References -- 8 Analysis of a City's Energy Metabolism -- 8.1 Analysis of Energy Metabolic Processes -- 8.1.1 Analysis of a Metabolic Network -- 8.1.2 Shifts of the Centers of Gravity for Energy Production and Consumption -- 8.1.3 Advantages of Models with Different Precision -- 8.1.4 Diagnosis of Urban Energy Metabolism Problems and Potential Solutions -- 8.1.5 Spatial Patterns of Supply and Demand for the Energy Types -- 8.1.6 Conclusions Related to the Centers of Gravity for Energy Supply and Demand -- 8.2 Analysis of the Characteristics of Urban Emergy Metabolic Networks -- 8.2.1 Metabolic Characteristics -- 8.2.2 Metabolic Paths and Relationships -- 8.2.3 Management Suggestions Based on Beijing's Emergy Accounting Evaluation -- 8.2.4 Suggestions for Improving the Urban Energy Metabolic Network -- 8.3 Analysis of the Embodied Energy Metabolism Network of the Beijing-Tianjin-Hebei Region -- 8.3.1 Analysis of the Embodied Energy Metabolism of the Nodes -- 8.3.2 Analysis of the Embodied Energy Metabolism of Paths -- 8.3.3 Relationships Analysis -- 8.3.4 Research Innovations and Comparison with Previous Research -- 8.3.5 Policy Recommendations -- 8.3.6 Importance of Multi-Scale Comparative Analysis -- References -- 9 Analysis of Carbon Metabolic Processes -- 9.1 Identification of the Key Metabolic Actors in the Urban Carbon System -- 9.1.1 Changes of the Carbon Metabolism and Its Structure -- 9.1.2 Identification of the Key Actors Based on the Carbon Imbalance Index. , 9.1.3 Identification of Key Actors Based on the Carbon External Dependence Index -- 9.1.4 Comparison with Previous Research -- 9.1.5 Explanations of the Research Results -- 9.2 Spatial Analysis for the Carbon Metabolism of an Urban Agglomeration -- 9.2.1 Carbon Metabolism Accounting and Its Spatial Distribution -- 9.2.2 Impact of Land Use Changes on the Carbon Emission and Absorption -- 9.2.3 Comparison of Carbon Spatial Variation with Other Studies -- 9.2.4 Comparison of the Impact of Land Use Change on Carbon Throughput with Previous Research -- 9.3 Spatial Network Analysis of Beijing's Carbon Metabolism -- 9.3.1 General Spatial Characteristics -- 9.3.2 Ecological Relationships and Their Spatial Patterns -- 9.3.3 Comparison with Previous Research on Spatial Distributions -- 9.3.4 Comparison with Previous Research on Ecological Relationships -- 9.4 Path Analysis of the Carbon Involved in Trade Between the United States and China -- 9.4.1 CO2 Transfers in Imports and Exports -- 9.4.2 Import Links Among Sectors in the United States and China -- 9.4.3 Export Links Among Sectors in the United States and China -- 9.4.4 Adjustment of the Carbon Mitigation Targets to Account for CO2 Transfers in Trade -- 9.4.5 The Importance of the Research Perspective -- 9.4.6 Comparison with Previous Research -- References -- 10 Analysis of the Urban Nitrogen Metabolism -- 10.1 Accounting for Nitrogen Metabolism and Its Key Influencing Factors in Beijing -- 10.1.1 Analysis of the Total Input of Reactive Nitrogen -- 10.1.2 Analysis of the Structural Characteristics of the Reactive Nitrogen Inputs -- 10.1.3 Analysis of Anthropogenic Nitrogen Consumption -- 10.1.4 Contributions of Influencing Factors -- 10.1.5 Comparison with Previous Research on the Total Characteristics of Urban Nitrogen Metabolism. , 10.1.6 Comparison with Previous Research on the Structural Characteristics of Urban Nitrogen Metabolism.
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  • 2
    Online Resource
    Online Resource
    La Vergne :RSC,
    Keywords: Electronic books.
    Description / Table of Contents: Green Fire Retardants for Polymeric Materials looks at the choice of materials and treatments for improving fire retardancy as well as green approaches to synthesising these fire retardants.
    Type of Medium: Online Resource
    Pages: 1 online resource (464 pages)
    Edition: 1st ed.
    ISBN: 9781839169793
    Series Statement: ISSN
    Language: English
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  • 3
    Online Resource
    Online Resource
    Singapore : Springer Nature Singapore | Singapore : Imprint: Springer
    Keywords: Environmental management. ; Urban ecology (Biology). ; Sustainability.
    Description / Table of Contents: PART I Theory -- Chapter 1 Connotation of urban metabolism -- Chapter 2 Research progress of urban metabolism -- Chapter 3 Urban metabolism research framework -- PART II Method -- Chapter 4 Accounting evaluation of urban metabolism -- Chapter 5 Urban metabolism model simulation -- Chapter 6 Regulation of urban metabolism optimization -- PART III Application- Chapter 7 Material metabolism process analysis- Chapter 8 Energy metabolism process analysis -- Chapter 9 Analysis of carbon metabolism -- Chapter 10 Analysis of urban nitrogen metabolism process -- Chapter 11 Analysis of metabolic process in the park.
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource(XV, 465 p. 184 illus., 181 illus. in color.)
    Edition: 1st ed. 2023.
    ISBN: 9789811991233
    Language: English
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  • 4
    Online Resource
    Online Resource
    Cham : Springer International Publishing AG
    Keywords: Electronic books
    Description / Table of Contents: Intro -- Preface -- Acknowledgements -- Contents -- Acronyms -- 1 Introduction -- 1.1 Mobile Cloud Computing (MCC) -- 1.2 Overview of MEC -- 1.3 Book Organization -- 2 Mobile Edge Computing -- 2.1 A Hierarchical Architecture of Mobile Edge Computing (MEC) -- 2.2 Computation Model -- 2.2.1 Computation Model of Local Execution -- 2.2.2 Computation Model of Full Offloading -- 2.2.3 A Computation Model for Partial Offloading -- 2.3 Offloading Policy -- 2.3.1 Binary Offloading -- 2.3.2 Partial Offloading -- 2.4 Challenges and Future Directions -- 3 Mobile Edge Caching -- 3.1 Introduction -- 3.2 The Architecture of Mobile Edge Caching -- 3.3 Caching Performance Metrics -- 3.3.1 Hit Rate Ratio -- 3.3.2 Content Acquisition Latency -- 3.3.3 Quality of Experience (QoE) -- 3.3.4 Caching System Utility -- 3.4 Caching Service Design and Data Scheduling Mechanisms -- 3.4.1 Edge Caching Based on Network Infrastructure Services -- 3.4.2 Edge Caching Based on D2D Services -- 3.4.3 Hybrid Service-Enabled Edge Caching -- 3.5 Case Study: Deep Reinforcement Learning-Empowered … -- 3.5.1 System Model -- 3.5.2 Problem Formulation and a DDPG-Based Optimal Content Dispatch Scheme -- 3.5.3 Numerical Results -- 4 Mobile Edge Computing for Beyond 5G/6G -- 4.1 Fundamental Characteristics of 6G -- 4.2 Integrating Mobile Edge Computing (MEC) … -- 4.2.1 Use Cases of Integrating MEC into 6G -- 4.2.2 Applications of Integrating MEC into 6G -- 4.2.3 Challenges of Integrating MEC into 6G -- 4.3 Case Study: MEC-Empowered Edge Model Sharing for 6G -- 4.3.1 Sharing at the Edge: From Data to Model -- 4.3.2 Architecture of Edge Model Sharing -- 4.3.3 Processes of Edge Model Sharing -- 5 Mobile Edge Computing for the Internet of Vehicles -- 5.1 Introduction -- 5.2 Challenges in VEC -- 5.3 Architecture of VEC -- 5.4 Key Techniques of VEC -- 5.4.1 Task Offloading.
    Type of Medium: Online Resource
    Pages: 1 online resource (123 pages)
    ISBN: 9783030839444
    Series Statement: Simula SpringerBriefs on Computing Ser. v.9
    Language: English
    Note: Description based on publisher supplied metadata and other sources
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  • 5
    Keywords: Forschungsbericht ; Alter ; AAL-Technik ; Gefühl ; Schmerz ; Affective Computing ; Deep learning ; Avatar
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (60 Seiten, 3,19 MB) , Illustrationen, Diagramme
    Language: German
    Note: Förderkennzeichen BMBF 16SV7310. - Verbund-Nummer 01160681 , Autoren und durchführende Institution dem Berichtsblatt entnommen. - Paralleltitel dem englischen Berichtsblatt entnommen , Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden , Sprache der Zusammenfassung: Deutsch, Englisch
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  • 6
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 4689-4690 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The discrete phonon spectra of TiO2 quantum dot with a dipole layer is reported. The absorption intensities of different LO phonons are related to the phonon-electron coupling in accord with the prediction of the continuum polarization model. The two-phonon bound state appeared due to the localization effect. The optical absorption of the self-trapped state [reported in Appl. Phys. Lett. 59, 1826 (1991)] may be related to the strong electron-phonon interaction in this system, i.e., a bipolaronic state might form with the presence of surface donor.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Inc
    Wound repair and regeneration 9 (2001), S. 0 
    ISSN: 1524-475X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Wound healing is a physiological process in which growth of cells is stringently regulated. Cell growth is controlled by cell cycle-related proteins in which the cyclin kinase inhibitors cause cell cycle arrest and inhibit proliferation. However, little is known about the expression and the role of cyclin kinase inhibitors during wound healing in vivo. This study was mainly designed to examine the expression of p21cip1 and p27kip1 in excisional wounds of full-thickness skin in rats. Concomitant expression of proliferation marker Ki67 was also examined. Proliferation predominantly occurred in the first week after injury, peaking at postwounding day 5. Expression of both p21cip1 and p27kip1 at the gene and protein levels did occur during wound healing and showed an inverse gradient to that of Ki67. Constitutive p27kip1 was expressed throughout wound healing with low levels during the proliferating period of days 3 and 5 and increased levels during post-mitotic and remodeling stages. In contrast, p21cip1 was expressed transiently with detectable levels only between days 7 and 14 by Western blot analysis. Immunohistochemically, epithelial cells, endothelial cells and fibroblasts all could express both p21cip1 and p27kip1. In conclusion, the overall results suggested that p21cip1 and p27kip1 may play a key role in supervising the growth resulting from cell proliferation in tissue repair.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    350 Main Street , Malden , MA 02148-5018 , USA , and 9600 Garsington Road , Oxford OX4 2DQ , UK . : Blackwell Science Inc
    Journal of cardiovascular electrophysiology 15 (2004), S. 0 
    ISSN: 1540-8167
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Introduction: Cardiac resynchronization therapy (CRT) has been shown to reverse left ventricular (LV) remodeling and improve symptoms in heart failure patients with wide QRS complexes; however, its role in patients with mildly prolonged QRS complexes is unclear. This study investigated if CRT benefited patients with mildly prolonged QRS complexes 〉120 to 150 ms and explored if the severity of systolic asynchrony determined such a response. Methods and Results: Fifty-eight patients (age 66 ± 11 years, 66% male) who had undergone CRT were studied prospectively. Of these patients, 27 had QRS duration between 120 and 150 ms (group A), and 31 had QRS duration 〉150 ms (group B). Tissue Doppler echocardiography and clinical assessment were performed at baseline and 3 months after CRT. Both groups had significant reduction of LV volume and increased ejection fraction, +dP/dt, and sphericity index (all P 〈 0.05). These improvements were greater in group B and were explained by the higher prevalence of systolic intraventricular asynchrony. Significant reverse remodeling (reduction of LV end-systolic volume 〉15%) was evident in 46% of group A patients and 68% of group B patients. Improvement in clinical endpoints was observed in both groups (all P 〈 0.01), although the changes in metabolic equivalent and New York Heart Association functional class were greater in group B. In both groups, systolic asynchrony index (TS-SD) was the most important predictor of reverse remodeling (r =−0.78, P 〈 0.001) and was the only independent predictor in the multivariate model (β=−1.80, confidence interval =−2.18 to −1.42, P 〈 0.001); QRS duration was not. A predefined TS-SD value 〉32.6 ms had a sensitivity of 94% and specificity of 83% to predict reverse remodeling. Improvement of intraventricular asynchrony after CRT was evident only in responders (P = 0.01). Conclusion: Improvement of LV remodeling and clinical status is evident after CRT in heart failure patients with QRS duration 〉120 to 150 ms. These responders are closely predicted by the severity of prepacing intraventricular asynchrony but not QRS duration.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Journal of neurochemistry 89 (2004), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In primary cultures of human neurons, 17β-estradiol (17β-E2) prevents caspase-6-mediated cell death and induces a caspase inhibitory factor (CIF) inhibiting active caspase-6 (Csp-6) in vitro. Here, we show that treatment of neurons with 17β-E2 results in a proteasomal-dependent but ubiquitin-independent degradation of endogenous and exogenous active Csp-6 in live neurons and in cell free assays, respectively. We further show that the proteasomal-dependent degradation of Csp-6 is not required for its inhibition. Using several protease inhibitors, we find that leupeptin, E-64, and ALLN prevent inhibition of recombinant active Csp-6 (R-Csp-6) in 17β-E2-treated neuronal protein extracts. Because all three protease inhibitors have the ability to inhibit cysteine proteases, we believe that a cysteinyl protease activity may be required for 17β-E2-mediated inhibition of active Csp-6. However, we exclude caspases, calpains, and cathepsins as potential cysteinyl proteases involved in the 17β-E2-mediated Csp-6 inhibition. The results suggest that a proteolytic activity inhibited by leupeptin, E-64, and ALLN is needed to inhibit Csp-6 and that the inhibited Csp-6 is subsequently degraded by the proteasome. The mechanism of 17β-E2-mediated inhibition of Csp-6 is different from the ubiquitin-dependent proteasomal degradation of Csp-3 and Csp-7 by XIAP and cIAP2 but consistent with the mechanism of Baculovirus p35 inhibition of caspases.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 75 (1999), S. 2758-2760 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A stable phase of relatively large hexagonal-wurtzite silicon crystals (up to 20 μm) was directly deposited at low pressure using ultraviolet laser ablation. The films were grown on a variety of substrates at room temperature from a single crystal, cubic silicon target. Crystallites of the hexagonal-wurtzite phase of silicon were clearly identified using selected area electron diffraction. Further support for this identification was provided by confocal scanning micro-Raman spectroscopy. The deposition of hexagonal silicon films may lead to novel two-dimensional optoelectronic devices, and pave the way to studies of the electronic properties of this lower symmetry, uncommon silicon phase. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
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