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  • Polymer and Materials Science  (2)
  • Aging  (1)
  • Bioinformatics.  (1)
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  • 1
    Online Resource
    Online Resource
    Singapore :Springer,
    Keywords: Bioinformatics. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (475 pages)
    Edition: 1st ed.
    ISBN: 9789811591440
    Language: English
    Note: Intro -- Preface -- Acknowledgments -- Contents -- Acronyms -- 1 Introduction and Preliminaries -- 1.1 Systems Biology -- 1.1.1 Overviews -- 1.1.2 Developments -- 1.1.3 Implications and Applications -- 1.2 Complex Networks -- 1.2.1 Overviews -- 1.2.2 Mathematical Description -- 1.2.3 Four Types of Networks -- 1.2.3.1 Regular Networks -- 1.2.3.2 Erdös-Rényi (ER) Random Networks -- 1.2.3.3 Scale-Free Networks -- 1.2.3.4 Small-World Networks -- 1.2.4 Statistical Metrics of Networks -- 1.2.4.1 Average Degree and Degree Distribution -- 1.2.4.2 Average Path Length -- 1.2.4.3 Diameter -- 1.2.4.4 Assortativity and Disassortativity -- 1.2.4.5 Small Worldness -- 1.2.4.6 Hierarchical Modularity -- 1.2.4.7 Modularity -- 1.2.4.8 Network Structure Entropy -- 1.2.5 Datasets for Real-World Complex Networks -- 1.3 Central Dogma of Molecular Biology -- 1.4 Bio-Molecular Networks -- 1.5 Several Statistical Methods -- 1.5.1 Descriptive Statistics -- 1.5.2 Cluster Analysis -- 1.5.2.1 Hierarchical Clustering -- 1.5.2.2 k-Means Clustering -- 1.5.3 Principal Component Analysis -- 1.6 Software for Network Visualization and Analysis -- 1.6.1 Pajek -- 1.6.2 Gephi -- 1.6.3 Cytoscape -- 1.6.4 MATLAB Packages and Others -- 1.7 Software for Statistical and Dynamical Analysis -- 1.7.1 SAS -- 1.7.2 SPSS -- 1.7.3 MATLAB -- 1.7.4 R -- 1.7.5 Some Other Software -- 1.7.5.1 Small Software for Clustering Analysis -- 1.7.5.2 Venn Diagrams -- 1.7.5.3 Software for Bifurcation and Dynamical Analysis -- 1.8 Organization of the Book -- References -- Part I Modeling and Dynamical Analysis of Bio-molecular Networks -- 2 Reconstruction of Bio-molecular Networks -- 2.1 Backgrounds -- 2.2 Reconstruction of Bio-molecular Networks Based on Online Databases -- 2.2.1 Regulatory Networks -- 2.2.2 Protein-Protein Interaction Networks -- 2.2.3 Signal Transduction Networks -- 2.2.4 Metabolic Networks. , 2.3 Artificial Algorithms for Generating Bio-molecular Networks -- 2.3.1 Algorithms for Artificial Regulatory Networks -- 2.3.2 Algorithms for Artificial PPI Networks -- 2.4 Statistical Reconstruction of Bio-molecular Networks -- 2.4.1 Association Methods -- 2.4.1.1 Various Similarity Measures -- 2.4.1.2 The Mean Variance Method -- 2.4.2 Information Theoretic Approaches -- 2.4.3 Partial Correlation/Gaussian Graphical Models -- 2.4.4 Granger Causality Methods -- 2.4.4.1 Granger Causality -- 2.4.4.2 Partial Granger Causality -- 2.4.4.3 Windowed Granger Causality -- 2.4.5 Statistical Regression Methods -- 2.4.6 Bayesian Methods -- 2.4.7 Variational Bayesian Methods -- 2.5 Topological Identification via Dynamical Networks -- 2.6 Discussions and Conclusions -- References -- 3 Modeling and Analysis of Simple Genetic Circuits -- 3.1 Backgrounds -- 3.2 Mathematical Modeling Techniques of Biological Networks -- 3.2.1 The Chemical Master Equation -- 3.2.2 Stochastic Simulation Algorithms -- 3.2.3 The Chemical Langevin Equation -- 3.2.4 Numerical Regimes for Stochastic Differential Equations -- 3.2.5 The Reaction Rate Equation -- 3.2.6 Numerical Regimes for Ordinary Differential Equations -- 3.3 Network Motifs and Motif Detection -- 3.4 The Feed-Forward Genetic Circuits -- 3.4.1 Related Works and Motivations -- 3.4.2 Methods for Parameter Sensitivities Analysis -- 3.4.2.1 Local Relative Parameter Sensitivities -- 3.4.2.2 A Traditional GPS Method: RS-HDMR -- 3.4.2.3 The New Global Relative Parameter Sensitivities Approach -- 3.4.3 Global Relative Parameter Sensitivities of the FFLs -- 3.4.3.1 Mathematical Models for the FFLs in GRNs -- 3.4.3.2 The GRPS of the FFLs -- 3.4.3.3 The Global Relative Parameter Sensitivities of CFFLs -- 3.4.3.4 The Global Relative Parameter Sensitivities of ICFFLs -- 3.4.3.5 The Effect of Input x on GRPS. , 3.4.3.6 The Effect of the Hill Coefficient n on the GRPS -- 3.4.3.7 RS-HDMR Versus GRPS on FFLs -- 3.4.4 GRPS and Biological Functions of the FFLs -- 3.4.4.1 GRPS and Biological Abundance of FFLs -- 3.4.4.2 Relations Between GRPS and Noise Characteristics -- 3.4.4.3 GRPS and Fold-Change Detection -- 3.4.5 Global Relative Input-Output Analysis of the FFLs -- 3.4.5.1 A GRIOS Index -- 3.4.5.2 GRIOS of the FFLs -- 3.4.5.3 GRIOS of the FFLs Versus Its Structural and Functional Characteristics -- 3.4.6 Summary -- 3.5 The Coupled Positive and Negative Feedback Genetic Circuits -- 3.5.1 Related Works and Motivations -- 3.5.2 Mathematical Models -- 3.5.2.1 Deterministic Models: Without Time Delay -- 3.5.2.2 Deterministic Models with Time Delays -- 3.5.2.3 Stochastic Model Directly from the Deterministic ODE: The Undeveloped Case -- 3.5.2.4 Stochastic Model from Table 3.9: The Developed Case -- 3.5.2.5 Stochastic Simulations -- 3.5.3 Dynamical Analysis and Functions -- 3.5.3.1 Bifurcation Analysis -- 3.5.3.2 Molecular Noise -- 3.5.3.3 Deterministic Versus Stochastic Dynamics for Parameters Near the Deterministic Bifurcation Points -- 3.5.3.4 Deterministic Versus Stochastic Dynamics for Parameters Locating in the Deterministic Excitable Region -- 3.5.3.5 Deterministic Versus Stochastic Dynamics for Parameters Locating in the Deterministic Bistable Region -- 3.5.3.6 Deterministic Versus Stochastic Dynamics for Parameters Locating in the Deterministic Oscillation Region -- 3.5.4 Summary -- 3.6 The Multi-Positive Feedback Circuits -- 3.6.1 Related Works and Motivations -- 3.6.2 Mathematical Models -- 3.6.3 Dynamical Analysis and Functions -- 3.6.3.1 The APFL Strength Can Tune the Size of the Bistable Region -- 3.6.3.2 The APFL Can Tune the Attractiveness of the Stable Steady States -- 3.6.3.3 The APFL Can Change the Global Relative I/O Sensitivities. , 3.6.3.4 Functional Characteristics of the APFL on Noisy Signal Processing -- 3.6.3.5 Effect of the APFL on Stochastic Bistable Switch -- 3.6.4 Summary -- 3.7 Exploring Simple Bio-molecular Networks with Specific Functions -- 3.7.1 Motivations -- 3.7.2 Exploring Enzymatic Regulatory Networks with Adaption -- 3.7.2.1 Searching for Circuits Capable of Adaptation -- 3.7.2.2 Identifying Minimal Adaptation Networks -- 3.7.2.3 Key Parameters in Minimal Adaptation Networks -- 3.7.2.4 Negative Feedback Loop with a Buffer Node -- 3.7.2.5 Incoherent FFL with a Proportioner Node -- 3.7.2.6 Exploration of All Possible 3-Node Networks: An NFBLB or IFFLP Architecture is Necessary for Adaptation -- 3.7.2.7 Motif Combinations Can Improve Adaptation -- 3.7.3 Exploring GRNs with Chaotic Behavior -- 3.7.3.1 GRNs and Mathematical Models -- 3.7.3.2 Conditions and Indicators for Chaos -- 3.7.3.3 Main Results -- 3.7.4 Summary -- 3.8 Discussions and Conclusions -- References -- 4 Modeling and Analysis of Coupled Bio-molecular Circuits -- 4.1 Backgrounds -- 4.2 Dynamical Analysis of a Composite Genetic Oscillator -- 4.2.1 Related Works and Motivations -- 4.2.2 Mathematical Models -- 4.2.2.1 The Hysteresis-Based Oscillator -- 4.2.2.2 The Repressilator -- 4.2.2.3 The Composite Oscillator -- 4.2.3 Dynamical Analysis of the Merged Genetic Oscillator -- 4.2.3.1 The Two Oscillatory Mechanisms Support Each Other -- 4.2.3.2 Oscillatory Mechanisms Are Distinct -- 4.2.4 Population Dynamics of Coupled Composite Oscillators -- 4.2.5 Summary -- 4.3 Modeling and Analysis of the Genetic Toggle Switch Circuit -- 4.3.1 Related Works and Motivations -- 4.3.2 Modeling and Analysis of the Single Toggle Switch System -- 4.3.2.1 Deterministic Model -- 4.3.2.2 Bistability -- 4.3.2.3 Stochastic Model for the Single Toggle Switch System -- 4.3.3 Modeling the Networked Toggle Switch Systems. , 4.3.4 Statistical Measurements -- 4.3.5 Stochastic Switch in the Single Toggle Switch System -- 4.3.6 Synchronized Switching in Networked Toggle Switch Systems -- 4.3.6.1 Feature Comparison Between White and Colored Noises Induced Synchronized Switching -- 4.3.6.2 Colored Noise Can Promote the Mean Protein Numbers -- 4.3.6.3 Robustness of Synchronized Switching Against Parameter Perturbations -- 4.3.6.4 Effect of Noise Autocorrelation Time -- 4.3.7 Physical Mechanisms of Bistable Switch -- 4.3.8 Some Further Issues -- 4.3.9 Summary -- 4.4 Discussions and Conclusions -- References -- 5 Modeling and Analysis of Large-Scale Networks -- 5.1 Backgrounds -- 5.2 Continuous Models for the Yeast Cell Cycle Network -- 5.2.1 Related Works and Motivations -- 5.2.2 Dynamical Analysis -- 5.2.3 Summary -- 5.3 Discrete Models for the Yeast Cell Cycle Network -- 5.3.1 Related Works and Motivations -- 5.3.2 Dynamical Analysis -- 5.3.3 Statistical Analysis -- 5.3.3.1 Comparison with Random Networks -- 5.3.3.2 Network Perturbations -- 5.3.4 Summary -- 5.4 Percolating Flow Model for a Mammalian Cellular Network -- 5.4.1 Related Works and Motivations -- 5.4.2 Dynamical Analysis -- 5.4.3 Statistical Analysis -- 5.4.4 Summary -- 5.5 A Hybrid Model for Mammalian Cell Cycle Regulation -- 5.5.1 Related Works and Motivations -- 5.5.2 The Hybrid Model -- 5.5.3 Dynamical Analysis of the Hybrid Model -- 5.5.4 Summary -- 5.6 General Hybrid Model for Large-Scale Bio-Molecular Networks -- 5.6.1 Related Works and Motivations -- 5.6.2 The General Hybrid Model -- 5.6.3 Hybrid Modeling and Analysis of a Toy Genetic Network -- 5.6.3.1 Dynamical Analysis of the Hybrid Model -- 5.6.3.2 Statistical Analysis -- 5.6.4 Summary -- 5.7 Discussions and Conclusions -- References -- Part II Statistical Analysis of Biological Networks -- 6 Evolutionary Mechanisms of Network Motifs in PPI Networks. , 6.1 Backgrounds.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of biomedical science 7 (2000), S. 466-474 
    ISSN: 1423-0127
    Keywords: Aging ; Free radical ; Superoxide anion ; SOD ; Catalase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Oxygen free radicals have been proposed to be involved in the process of aging. Superoxide dismutase (SOD) and catalase are important for antioxidative defense. In this study, profiles of SOD, catalase, and their mRNA levels were investigated in the frontal, parietal, temporal and occipital lobes, subcortex and cerebellum of male Wistar rats at ages 1–21 months. The total SOD and Mn SOD activities increased with age and exhibited higher levels at 6 and 12 months but decreased thereafter. Activity of catalase showed a similar trend and notably peaked at 12 months. The mRNA levels of Cu/Zn SOD, Mn SOD, and catalase remained constant in all areas tested (frontal, parietal, temporal and occipital lobes, and subcortex) except the cerebellum. Post-transcriptional regulation was involved in modulating the enzymes' activities during aging. Furthermore, the rate of mitochondrial generation of the superoxide anion $$(O_2^{\bar .} )$$ increased gradually with aging. Taken together, the results suggest that the increase of oxidative potential and the loss of proper antioxidant defense in the rats appear to be highly involved in the aging process of the brain.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 190 (1989), S. 875-882 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Fourier transform infrared spectra were obtained for solution-crystallized samples of two polybutadiene copolymers, one containing 10% cis-, 1,5% 1,2- and 88,5% trans- and the other 1% cis- and 99% trans-polybutadiene. Measurements were made at room temperature, at temperatures above the crystal transition temperature, but below the melting temperature, and at temperatures above the melting temperature. Spectra for 100% crystalline samples were obtained by subtraction of the spectrum for the melt from that for the semicrystalline sample. Infrared spectra were also obtained for suspension epoxidized samples; these showed the presence of an unreacted crystal core and completely reacted lamellar surfaces.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0935-9648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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