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  • 1
    Online Resource
    Online Resource
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Keywords: Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (221 pages)
    Edition: 1st ed.
    ISBN: 9783642730207
    Language: English
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  • 2
    Online Resource
    Online Resource
    Milton :Taylor & Francis Group,
    Keywords: Membranes (Biology)-Mathematical models. ; Electronic books.
    Description / Table of Contents: Since molecular processes in membranes occur on a multitude of spatial and time scales, molecular simulations of membranes can also serve as a testing ground for use of multi-scale simulation techniques. This book addresses some of the important issues related to understanding properties and behavior of model biological membranes.
    Type of Medium: Online Resource
    Pages: 1 online resource (241 pages)
    Edition: 1st ed.
    ISBN: 9781351060301
    Series Statement: Series in Computational Biophysics Series
    DDC: 571.640285
    Language: English
    Note: Cover -- Half Title -- Series Page -- Title Page -- Copyright Page -- Dedication -- Table of Contents -- Series Preface -- About the Editor -- Contributors -- 1. Force Fields for Biomembranes Simulations -- 1 Introduction -- 2 Force Fields -- 3 Validation and Comparisons of Force Fields -- 4 Conclusions -- 2. Mesoscopic Particle-Based Modeling of Self-Assembled Lipid Membranes -- I Introduction -- II The Particle-Based Mesoscopic Approach -- III Explicit Solvent Modeling -- IV Implicit Solvent Modeling -- V Conclusion -- 3. Continuum Elastic Description of Processes in Membranes -- 1 Continuum Modeling Paradigms -- 2 Variables of a Continuum Model -- 3 Pushing the Limits of a Continuum Model -- 4 Molecular Modifications to Continuum Modeling -- 4. Water between Membranes: Structure and Dynamics -- I Introduction -- II Dynamics of Water Between Stacked Membranes at Different Hydration Levels -- III Dependence of Water Dynamics on Distance to Membrane -- IV Effect of Temperature on the Hydration Water Dynamics -- V Extension of the Structural Effect of the Membrane on Interfacial Water -- VI Conclusions -- 5. Simulation Approaches to Short-Range Interactions between Lipid Membranes -- 1 Introduction -- 2 Thermodynamics of Membrane Interactions -- 3 Simulations of Interacting Membranes -- 4 Insights into Short-Range Interactions between Lipid Membranes -- 5 Summary and Outlook -- 6. Free-Energy Calculations of Pore Formation in Lipid Membranes -- 1 Introduction -- 2 Membrane Pores from Experiments -- 3 Modeling Pores in Molecular Dynamics Simulations -- 4 Reaction Coordinates for Free-Energy Calculations of Pore Formation: A Comparison -- 5 Longer Lipid Tails Increase the Free Energy of Pore Formation -- 6 Relative Volume of Lipid Head to Lipid Tails Determines the Metastability of the Pore. , 7 Practical Consideration for PMF Calculations with the Chain Coordinate -- 8 Summary and Outlook -- 7. Free Energy Calculation of Membrane Translocation: What Works When, and Why? -- 1 Introduction -- 2 Methods for Free Energy Calculations -- 3 Translocation of Specific Solutes -- 4 Implications and Recommendations -- 8. Theories and Algorithms for Molecular Permeation through Membranes -- I Introduction -- II Passive Permeation: Definition, Measurements, and Modeling -- III Solubility Diffusion Model -- IV Milestoning -- V Permeation of Blocked Tryptophan with Milestoning -- VI Fluctuations of Membrane Density with Milestoning -- VII Difference of Permeation of Positive and Negative Charged Molecules -- VIII Conclusions -- 9. Nanoparticle-Membrane Interactions: Surface Effects -- 1 Introduction -- 2 Experimental Data in Search for a Molecular-Scale Interpretation -- 3 What We Understood So Far Using Computational Tools -- 4 Perspectives -- 10. Simulations of Membranes Containing General Anesthetics -- 1 Introduction -- 2 Studies Involving Chemically Similar Molecules -- 3 Position of the Anesthetics in the Membrane -- 4 Change of Various Membrane Properties -- 5 Pressure Reversal -- 6 Concluding Remarks -- 11. Cation-Mediated Nanodomain Formation in Mixed Lipid Bilayers -- 1 Introduction -- 2 Methods -- 3 Model Validation -- 4 Results and Discussions -- 5 Conclusion -- 12. Molecular Dynamics Simulations of Gram-Negative Bacterial Membranes -- Slow Diffusion and Importance of Divalent Cations -- Different Dynamics, Not Just Slower -- Specific Binding -- Asymmetric Energetic Barriers for Permeation of Small Molecules -- Larger Simulation Systems: Correlated Lipid Motion -- Summary and Outlook -- Index.
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  • 3
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Freshwater algae -- Ecology. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (781 pages)
    Edition: 1st ed.
    ISBN: 9780080526942
    Series Statement: Aquatic Ecology Series
    DDC: 589.3/5
    Language: English
    Note: Front Cover -- Algal Ecology: Freshwater Benthic Ecosystems -- Copyright Page -- Contents -- Contributors -- Preface -- Acknowledgments -- SECTION ONE: PATTERNS OF BENTHIC ALGAE IN AQUATIC ECOSYSTEMS -- Chapter 1. An Introduction to Algal Ecology in Freshwater Benthic Habitats -- I. The Diversity of Benthic Algae and Their Habitats in Fresh Waters -- II. The Niche of Freshwater Benthic Algae -- III. Methods for Characterizing Freshwater Benthic Algae -- IV. Conceptual Frameworks for Benthic Algal Community Ecology -- References -- Chapter 2. Patterns in Benthic Algae of Streams -- I. Introduction -- II. Temporal Patterns -- III. Spatial Patterns -- IV. Benthic Algal Proliferations -- V. Concluding Remarks -- References -- Chapter 3. Periphyton Patterns in Lakes -- I. Introduction -- II. The Lentic Periphyton Community -- III. Important Influential Factors -- IV. Conclusions and Missing Pieces -- References -- Chapter 4. Pattern in Wetlands -- I. Introduction -- II. Algal Assemblages in Wetlands -- III. The Role of Algae in Wetlands -- IV. Species Composition of Wetland Algae -- V. Algal Production in Wetlands -- VI. Factors Affecting Algal Production -- VII. Conceptual Model of Wetland Algae -- VIII. Conclusion -- References -- SECTION TWO: FACTORS AFFECTING BENTHIC ALGAE -- Chapter 5. Effects of Light -- I. Introduction -- II. Photosynthetic Processes -- III. Benthic Light Environments -- IV. Photosynthesis-Irradiance Relations -- V. Ecological Effects of Light Intensity -- VI. Ecological Effects of Light Quality -- VII. Ultraviolet Radiation -- VIII. Summary -- References -- Chapter 6. Periphyton Responses to Temperature at Different Ecological Levels -- I. Introduction -- II. Autecological Responses -- III. Population Responses -- IV. Community Structure -- V. Ecosystem Response -- VI. Global Temperature Changes -- VII. Synthesis -- References. , Chapter 7. Nutrients -- I. Introduction -- II. Conceptual Framework: Nutrient Uptake and Growth Kinetics -- III. Conceptual Framework: Microhydrodynamic Environment -- IV. Nutrient Limitation of Benthic Algae -- V. Nutrient Kinetics of Benthic Algae -- VI. Effects of Water Motion on Benthic Algal Nutrient Uptake and Nutrient-Limited Growth -- VII. Nutrient Competition -- References -- Chapter 8. Resource Competition and Species Coexistence in Freshwater Benthic Algal Assemblages -- I. Introductory Remarks -- II. Basic Theory and Predictions: The Lotka-Volterra Equations and the Competitive Exclusion Principle -- III. Limitations to Classical Theory: Equilibrium and Nonequilibrium Coexistence in Competitive Hierarchies -- IV. Adaptive Traits Conferring Competitive Dominance and Avoidance -- V. Summary and Recommendations for Future Research -- References -- Chapter 9. Interactions of Benthic Algae with Their Substrata -- I. Introduction: The Interface Niche of Benthic Algae -- II. Substratum Physical Influences -- III. The Challenge of Examining Substratum Chemical Influences -- IV. Known Influences of Substratum Composition -- V. Conclusions and Recommendations -- References -- Chapter 10. The Role of Heterotrophy in Algae -- I. Defining Autotrophy and Heterotrophy -- II. The Ecological Roles of Algal Heterotrophy in Benthic Assemblages -- III. Conclusions -- References -- Chapter 11. The Stimulation and Drag of Current -- I. Introduction -- II. Direct Effects -- III. Indirect Effects -- IV. Manifestations of Current Effects -- V. Conclusions -- References -- Chapter 12. Effects of Grazers on Freshwater Benthic Algae -- I. Introduction -- II. Conceptual Framework -- III. Algal Responses to Herbivory -- IV. Future Research Directions and Concerns -- References -- Chapter 13. Response of Benthic Algal Communities to Natural Physical Disturbance. , I. Introduction -- II. Factors Influencing Resistance to Scour -- III. Factors Influencing Resilience Following Scour -- IV. Factors Influencing Response to Emersion -- V. Factors Influencing Response to Light Deprivation and Burial -- VI. Concluding Remarks -- References -- Chapter 14. Ecotoxicology of Inorganic Chemical Stress to Algae -- I. Introduction -- II. Adsorption and Uptake -- III. Effects of Inorganic Chemical Stress on Algae -- IV. Mechanisms of Tolerance -- V. Environmental Factors Affecting Metal Toxicity and Uptake -- VI. Interactions among Inorganic Stressors -- VII. Response of Algal Communities to Inorganic Stressors -- VIII. Algal Bioassay of Inorganic Stressors -- References -- Chapter 15. Effects of Organic Toxic Substances -- I. Introduction -- II. Conceptual Framework -- III. Direct Effects -- IV. Indirect Effects -- V. Conclusions and Future Directions -- References -- Chapter 16. Acidification Effects -- I. Introduction -- II. General Responses to the Loss of the Acid-Neutralizing Capacities of Ecosystems -- III. Hypotheses Explaining Acidification Effects -- IV. Conclusions -- References -- SECTION THREE: THE NICHE OF BENTHIC ALGAE IN FRESHWATER ECOSYSTEMS -- Chapter 17. The Role of Periphyton in Benthic Food Webs -- I. Introduction -- II. Structure of "Macroscopic" Benthic Food Webs -- III. Periphyton in Aquatic Energy Budgets -- IV. Periphyton in Benthic Food Webs -- V. Top-down and Bottom-up Regulation of Benthic Food Webs -- VI. The Case for "Intermediate Regulation -- VII. General Conclusions and Directions for Future Research -- References -- Chapter 18. Algae in Microscopic Food Webs -- I. Introduction -- II. Algal-Bacterial Interaction -- III. Detection of Microbial Feeding Relationships -- IV. Algal and Bacterial Ingestion by Microconsumers. , V. Use of Other Food Resources, Intraguild Predation, and Links to Higher Organisms -- VI. Impact on Production and Standing Crops -- VII. Nutrient Regeneration -- VIII. Conclusions, Implications, and Research Needs -- References -- Chapter 19. Role in Nutrient Cycling in Streams -- I. Introduction -- II. Direct Effects: Nutrient Cycling Processes -- III. Indirect Effects -- IV. Nutrient Turnover Rates and Comparison with Other Ecosystems -- V. Summary and Conclusions -- References -- Chapter 20. Benthic Algae and Nutrient Cycling in Lentic Freshwater Ecosystems -- I. Introduction -- II. Nutrient Characteristics in Lentic Habitats -- III. Nutrient Gradients and Limitations -- IV. Summary and Conclusions -- References -- Chapter 21. Modeling Benthic Algal Communities: An Example from Stream Ecology -- I. Introduction -- II. A Modeling Approach -- III. The McIntire and Colby Stream Model -- IV. An Updated Herbivory Subsystem Model -- V. Behavior of the Herbivory Subsystem Model -- VI. Behavior of the Updated M & -- C Model -- VII. Hypothesis Generation -- VIII. Discussion and Conclusions -- References -- Chapter 22. Benthic Algal Communities as Biological Monitors -- I. Introduction -- II. Applications -- III. Methodology -- IV. Summary and Conclusions -- References -- Taxonomic Index -- Subject Index.
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  • 4
    Online Resource
    Online Resource
    Berlin, Heidelberg : Springer Berlin Heidelberg
    Keywords: Mathematics ; Number theory ; Discrete mathematics. ; Number Theory ; Mathematics ; Witt-Gruppe ; Witt-Gruppe ; Innenproduktraum ; Witt-Gruppe ; Hermitesche Form
    Description / Table of Contents: Conventions -- The Witt ring -- Witt invariants -- Polynomials -- Witt group of a field -- The boundary -- Non-maximal orders -- The global boundary -- A detailed analysis of the octagon -- The octagon over Z.
    Type of Medium: Online Resource
    Pages: Online-Ressource (IV, 276 p, online resource)
    ISBN: 9783540390275 , 9783540112013
    Series Statement: Lecture Notes in Mathematics 914
    RVK:
    Language: English
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  • 5
    Type of Medium: Book
    Pages: X, 93 S , graph. Darst
    Series Statement: Special report / Center for Great Lakes Studies 25.1977
    Language: English
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  • 6
    Publication Date: 2020-02-12
    Type: info:eu-repo/semantics/article
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  • 7
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    Unknown
    PANGAEA
    In:  Supplement to: Coleman, Max L; Fleet, Andy; Donson, Paul (1982): Preliminary studies of manganese-rich carbonate nodules from Leg 68, Site 503, eastern Equatorial Pacific. In: Prell, WL; Gardner, JV; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 68, 481-489, https://doi.org/10.2973/dsdp.proc.68.123.1982
    Publication Date: 2023-08-28
    Description: Nodules occur in the siliceous calcareous ooze and siliceous marl at Site 503 in the eastern equatorial Pacific. They are present below a depth of about 11 meters throughout the green-colored reduced part of the section down to 228 meters, although they are most abundant between 30 and 85 meters. They are cylindrical or barrel-shaped, up to 70 mm long, and usually have an axial channel through them or are hollow. They appear to have formed around and/or within burrows. XRD studies and microprobe analyses show that they are homogeneous and consist of calcian rhododrosite and minor calcite; Mn is present to the extent of about 30%. Isotopic analyses of the carbonate give carbon values which range from -1.2 per mil to -3.8 per mil, and oxygen isotope compositions vary from +4.0 per mil to +6.0 per mil. These values are different from those for marine-derived carbonates as exemplified by the soft sediment filling of a burrow: d13C, -0.26 per mil; d18O, +1.05 per mil. The carbon isotope data indicate that carbonate derived (possibly indirectly) from seawater was mixed with some produced by organic diagenesis to form the nodules. The d18O values suggest that although they formed near the sediment surface, some modification or the introduction of additional diagenetic carbonate occurred during burial.
    Keywords: 68-503A; 68-503B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg68; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/FLANK
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 8
    Publication Date: 2023-08-28
    Keywords: 68-503A; 68-503B; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Leg68; North Pacific/FLANK; Sample code/label; Sample ID; see reference(s); δ13C, carbonate; δ18O, carbonate
    Type: Dataset
    Format: text/tab-separated-values, 150 data points
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  • 9
    Publication Date: 2023-08-28
    Keywords: 68-503A; 68-503B; Aluminium; Calcium; Calculated; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Event label; Glomar Challenger; Iron; Leg68; Magnesium; Manganese; North Pacific/FLANK; Phosphorus; Potassium; Probe Type; Sample code/label; Silicon; Sodium; Sulfur, total; Total
    Type: Dataset
    Format: text/tab-separated-values, 316 data points
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  • 10
    Publication Date: 2024-01-09
    Keywords: 112-686B; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg112; Mass spectrometer VG Micromass 903; Ocean Drilling Program; ODP; Sample code/label; South Pacific Ocean; Sulfate; Sulfide; Wet chemistry; δ34S, sulfide
    Type: Dataset
    Format: text/tab-separated-values, 29 data points
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