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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Molecular biology -- Mathematics. ; Biomathematics. ; Cytoskeleton -- Mathematics. ; Cells -- Morphology -- Mathematics. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (535 pages)
    Edition: 1st ed.
    ISBN: 9780080528076
    DDC: 572.8/0151
    Language: English
    Note: Front Cover -- Biomathematics: Mathematics of Biostructures and Biodynamics -- Copyright Page -- Contents -- Chapter 1. Introduction -- References -- Chapter 2. Counting, Algebra and Periodicity - the Roots of Mathematics are the Roots of Life -- 2.1 Counting and Sine -- 2.2 Three Dimensions -- Planes and Surfaces, and Surface Growth -- 2.3 The Growth of Nodal Surfaces - Molecules and Cubosomes -- References 2 -- Chapter 3. Nodal Surfaces of Tetragonal and Hexagonal Symmetry, and Rods -- 3.1 Non Cubic Surfaces -- 3.2 Tetragonal Nodal Surfaces and their Rod Structures -- 3.3 Hexagonal Nodal Surfaces and their Rod Structures -- References 3 -- Chapter 4. Nodal Surfaces, Planes, Rods and Transformations -- 4.1 Cubic Nodal Surfaces -- 4.2 Nodal Surfaces and Planes -- 4.3 Cubic Nodal Surfaces and Parallel Rods -- 4.4 Transformations of Nodal Surfaces -- References 4 -- Chapter 5. Motion in Biology -- 5.1 Background and Essential Functions -- 5.2 The Control of Shape - the Natural Exponential or cosh in 3D -- 5.3 The Gauss Distribution (GD) Function and Simple Motion -- 5.4 More Motion in 3D -- References 5 -- Chapter 6. Periodicity in Biology - Periodic Motion -- 6.1 The Hermite Function -- 6.2 Flagella- Snake and Screw Motion -- 6.3 Periodic Motion with Particles in 2D or 3D -- 6.4 Periodic Motion with Rotation of Particles in 2D -- References 6 -- Chapter 7. Finite Periodicity and the Cubosomes -- 7.1 Periodicity and the Hermite Function -- 7.2 Cubosomes and the Circular Functions -- 7.3 Cubosomes and the GD-Function - Finite Periodicity and Symmetry P -- 7.4 Cubosomes and the GD-Function - Symmetry G -- 7.5 Cubosomes and the GD Function - Symmetry D -- 7.6 Cubosomes and the Handmade Function -- References 7 -- Chapter 8. Cubic Cell Membrane Systems/Cell Organelles and Periodically Curved Single Membranes -- 8.0 Introduction -- 8.1 Cubic Membranes. , 8.2 The Endoplasmatic Reticulum -- 8.3 Protein Crystallisation in Cubic Lipid Bilayer Phases and Cubosomes - Colloidal Dispersions of Cubic Phases -- 8.4 From a Minimal Surface Description to a Standing Wave Dynamic Model of Cubic Membranes -- 8.5 Periodical Curvature in Single Membranes -- References 8 -- Chapter 9. Cells and their Division - Motion in Muscles and in DNA -- 9.1 The Roots and Simple Cell Division -- 9.2 Cell Division with Double Membranes -- 9.3 Motion in Muscle Cells -- 9.4 RNA and DNA Modelling -- References 9 -- Chapter 10. Concentration Gradients, Filaments, Motor Proteins and again- Flagella -- 10.1 Background and Essential Functions -- 10.2 Filaments -- 10.3 Microtubulus and Axonemes -- 10.4 Motor Proteins and the Power Stroke -- 10.5 Algebraic Roots Give Curvature to Flagella -- References 10 -- Chapter 11. Transportation -- 11.1 Background - Examples of Docking and Budding with Single Plane Layers, and Other Simple Examples -- 11.2 Docking and Budding with Curved Single Layers -- 11.3 Transport Through Double Layers -- References 11 -- Chapter 12. Icosahedral Symmetry, Clathrin Structures, Spikes, Axons, the Tree, and Solitary Waves -- 12.1 The icosahedral symmetry -- 12.2 Hyperbolic Polyhedra, Long Cones, Cylinders and Catenoids -- 12.3 Cylinder Division and Cylinder Fusion - Cylinder Growth -- 12.4 Solitary Waves, Solitons and Finite Periodicity -- References 12 -- Chapter 13. Axon Membranes and Synapses - A Role of Lipid Bilayer Structure in Nerve Signals -- 13.1 The Nerve Impulse -- 13.2 At the Action Potential Region of the Membrane there is a Phase Transition in the Lipid Bilayer -- 13.3 A Model of a Phase-Transition/Electric Signal Coupling at Depolarisation and its Physiological Significance -- 13.4 Transmission of the Nerve Signal at the Terminal Membrane of the Neurons - Synaptic Transmission. , 13.5 Synchronisation of Muscle Cell Activation -- 13.6 The General Anaesthetic Effect -- 13.7 Physiological Significance of Involvement of a Lipid Bilayer Phase Transition in Nerve Signal Conduction -- References 13 -- Chapter 14. The Lung Surface Structure and Respiration -- 14.1 The Alveolar Surface -- 14.2 Lung Surfactant -- 14.3 Structure of Tubular Myelin - A Bilayer arranged as the Classical CLP-Surface -- 14.4 The Existence of a Coherent Surface Phase Lining the Alveoli -- 14.5 Respiration -- 14.6 Physiological Significance of the Existence of an Organised Surface Phase at the Alveolar Surface -- References 14 -- Chapter 15. Epilogue -- Acknowledgement -- References 15 -- Appendix 1. The Plane, the Cylinder and the Sphere -- Appendix 2. Periodicity -- Appendix 3. The Exponential Scale, the GD function, Cylinder and Sphere Fusion -- Appendix 4. The Exponential Scale, the Planes and the Natural Function, Addition and Subtraction 409 -- Appendix 5. Multiplication of Planes, Saddles and Spirals -- Appendix 6. Symmetry -- Appendix 7. The Complex Exponential, the Natural Exponential and the GD- Exponential - General Examples and Finite Periodicity -- Appendix 8. Classical Differential Geometry and the Exponential Scale -- Appendix 9. Mathematica (Contains the Mathematica scripts used for calculating the equations for the figures in this book.) -- Subject Index.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Entomologia experimentalis et applicata 80 (1996), S. 32-34 
    ISSN: 1570-7458
    Keywords: Noctuidae ; moth ; olfactory receptors ; plant volatiles ; electrophysiology ; single-sensillum recordings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Bioprocess and biosystems engineering 15 (1996), S. 125-132 
    ISSN: 1432-0797
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract In order for ethanol to be competitive with gasoline, the production cost of ethanol must be lower than it is today. One economically crucial step in the production of ethanol from lignocellulosics is refining, since hydrolysis yields dilute glucose solutions which, after fermentation, result in a dilute ethanol solution, 2–3 wt-% ethanol. A technical-economic investigation of various energy-saving alternatives to conventional distillation has been performed. The energy-saving techniques investigated were: multi-column distillation, distillation with mechanical vapour recompression, distillation with an absorption heat transformer, phase separation with potassium carbonate and extraction of ethanol from the fermentation broth with Aldol 85. The most economical refining step for the production of ethanol from a dilute glucose solution, around 5 wt-%, was found to be multicolumn distillation.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1351
    Keywords: Key words Olfaction ; Scarab beetle ; Sex pheromone ; Olfactory receptor neuron ; Single sensillum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Chemical communication in scarab beetles involves female-released long-distance sex pheromones. Electrophysiological recordings using tungsten microelectrodes demonstrated two types of olfactory receptor neurons in the scarab beetle Anomala cuprea, each specific for one of the two pheromone components (R)-buibuilactone and (R)-japonilure, respectively. No neurons were found that responded specifically to enantiomers of the pheromone compounds, i.e. (S)-buibuilactone and (S)-japonilure. Pheromone receptor neurons are present in high numbers on both the male and the female antenna, with a lower sensitivity in the females. As in bark beetles and moths, the pheromone receptor neurons in A. cuprea are very sensitive and selective. The difference in response thresholds between (R)- and (S)-enantiomers is almost three orders of magnitude. Pheromone receptor neurons are found in sensilla placodea located in a defined area on each lamella in the antennal club. (R)-buibuilactone and (R)-japonilure neurons are always found in different sensilla. Both types of sensilla contain two neurons, with the pheromone-sensitive neuron displaying a high spike amplitude and the second neuron, not responding to any of the tested compounds, always with a lower spike amplitude.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Bioprocess engineering 15 (1996), S. 125-132 
    ISSN: 0178-515X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract  In order for ethanol to be competitive with gasoline, the production cost of ethanol must be lower than it is today. One economically crucial step in the production of ethanol from lignocellulosics is refining, since hydrolysis yields dilute glucose solutions which, after fermentation, result in a dilute ethanol solution, 2–3 wt-% ethanol. A technical-economic investigation of various energy-saving alternatives to conventional distillation has been performed. The energy-saving techniques investigated were: multi-column distillation, distillation with mechanical vapour recompression, distillation with an absorption heat transformer, phase separation with potassium carbonate and extraction of ethanol from the fermentation broth with Aldol 85. The most economical refining step for the production of ethanol from a dilute glucose solution, around 5 wt-%, was found to be multi-column distillation.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1434-6079
    Keywords: PACS. 31.50.+w Excited states - 31.70.-f Effects of atomic and molecular interactions on electronic structure - 34.80.Gs Molecular excitation and ionization by electron impact - 34.80.Kw Electron-ion scattering; excitation and ionization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The effect of rotational interaction in the low energy dissociative recombination process of diatomic molecules has been explored for typical molecular ions ( ) which sample a large range of molecular masses. We show that rotation plays a role mainly for the indirect recombination process through bound Rydberg states, and for light molecules. When the direct process based on a strong electronic interaction is fast and dominating, rotational couplings can be safely neglected especially for heavier molecules like NO.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-1777
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1572-9540
    Keywords: particle-imaging detector ; fast timing ; microchannel plate device
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A microchannel plate/CCD-camera particle detector is described that utilises gold strips deposited upon the surface of a MCP to provide particle arrival time information. The uncertainty in the timing is assessed to be ∼500 ps (FWHM) for a measured time interval between adjacent strips. The main contribution of which is the result of the slow response time of the CFD compared to the signal. The application of timing measurement is shown to be of particular benefit in the accurate determination of product state branching ratios from the dissociative recombination of diatomic ions. Finally, the possibilities of such a detector are assessed.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The heavy-ion storage ring CRYRING at the Manne Siegbahn Laboratory at Stockholm University has been used for the study of dissociative recombination of 3HeH+. The new adiabatically expanded electron beam at CRYRING, which is achieved by means of a superconducting magnet, was used. The electron-beam expansion factor of 100 gave a transverse electron temperature of about 1 meV. This allowed the observation of several new resonances in the recombination cross-section.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1612-1112
    Keywords: Electrospray ionization ; Mass spectrometric detection ; Microdialysis ; Peptide analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Electrospray ionization mass spectrometry (ESI-MS) is an important tool for biomolecule analysis. Because the salt content of small-volume peptide samples can hamper analyte ionization, such samples require treatment before ESI-MS. The approach described here consists in interfacing ESI-MS with on-line microdialysis which affords rapid desalting and buffer-exchange. On-line microdialysis was performed by means of a hollow fiber (i.d. 200 μm) coupled to fused silica capillaries. Peptide samples were introduced into the capillary flow system as plugs and transferred to the dialysis cell and the electrospray by means of hydrodynamic pressure. As a result, the ionization efficiency of peptidic analytes was increased and adduct formation with, e.g., sodium, was reduced owing to reduced levels of nonvolatile salts. The feasibility of on-line microdialysis-ESI-MS is shown with a proteolytic digest originating from two-dimensional gel electrophoresis.
    Type of Medium: Electronic Resource
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