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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Fishes -- Evolution. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (576 pages)
    Edition: 1st ed.
    ISBN: 9780080549521
    Series Statement: Issn Series ; v.Volume 26
    DDC: 597.138
    Language: English
    Note: Front Cover -- Primitive Fishes -- Copyright Page -- Contents -- Contributors -- Preface -- Chapter 1: Living Primitive Fishes and Fishes From Deep Time -- 1. Introduction -- 2. Primitive Characters, Primitive Taxa, and Ancient Taxa -- 3. Living Fossils -- 4. Living Primitive Fishes in Vertebrate Phylogeny -- 4.1. The Hagfish-Lamprey-Gnathostome Node -- 4.2. The Gar-Bowfin-Teleosts Node -- 4.3. The Coelacanth-Lungfish-Tetrapod Node -- 4.4. Other Problematic Nodes -- 5. Living Primitive Fishes and Their Fossil Relatives: Naming and Dating Taxa -- 5.1. Hagfishes and Lampreys -- 5.2. Chondrichthyans -- 5.3. Actinopterygians -- 5.4. Sarcopterygians -- 6. Extinct Major Fish Taxa and Their Position in Vertebrate Phylogeny -- 6.1. Yunnanozoans and Myllokunmingiids -- 6.2. "Ostracoderms -- 6.3. Placoderms -- 6.4. Acanthodians -- 6.5. "Paleoniscoids" and Basal Neopterygians -- 6.6. Extinct Sarcopterygian Taxa -- 7. How Stable is Vertebrate Phylogeny? -- 8. Fossils and Physiology -- 9. The Environment of Early Fishes: Marine Versus Freshwater Vertebrates -- 10. Conclusions -- References -- Chapter 2: Cardiovascular Systems in Primitive Fishes -- 1. Introduction -- 1.1. Scope of the Chapter -- 1.2. Measurement Systems: Their Benefits and Limitations -- 2. An Overview of Evolutionary Progressions -- 2.1. Anatomical Patterns -- 2.2. Physiological Patterns -- 3. Details of the Cyclostome Circulatory Systems -- 3.1. Hagfishes -- 3.2. Lampreys -- 4. Details of the Sarcopterygii (Lobe-Finned Fishes) Circulatory Systems -- 4.1. Coelacanth -- 4.2. Dipnoi (Lungfishes) -- 5. Details of the Circulatory Systems in Polypterids, Gars, and Bowfins -- 5.1. Polypterids (Bichirs and Reedfish) -- 5.2. Garfishes -- 5.3. Amia (Bowfins) -- 6. Details of the Sturgeon Circulatory Systems -- 6.1. Cardiac Anatomy -- 6.2. Circulatory Patterns -- 6.3. Cardiac Dynamics. , 6.4. Circulatory Control -- 7. Conclusions -- Acknowledgements -- References -- Chapter 3: Nervous and Sensory Systems -- 1. Introduction -- 2. Development of the CNS -- 3. The Brains of Primitive Fishes -- 3.1. Agnathans (Hagfishes and Lampreys) -- 3.2. Sarcopterygians (Lobe-Finned Fishes) -- 3.3. Actinopterygians (Early Ray-Finned Fishes) -- 4. Functional Classification of Cranial Nerves in Fishes -- 5. The Visual System -- 5.1. The Optical Apparatus -- 5.2. Retina and Visual Function -- 5.3. Spectral Filters -- 5.4. Visual Sensitivity -- 5.5. Visual Resolution -- 5.6. Visual Input to the CNS -- 5.7. Nonvisual Photoreception -- 6. Chemoreceptive Systems -- 6.1. Olfaction -- 6.2. Gustation -- 6.3. Solitary Chemoreceptor Systems -- 7. Octavolateralis System -- 7.1. Audition -- 7.2. Vestibular Control -- 7.3. Lateral Line -- 8. Electroreception -- 8.1. Structure, Function, and Evolution of Ampullary Receptors -- 8.2. Role in Passive Electrolocation -- 9. Concluding Remarks -- References -- Chapter 4: Ventilatory Systems -- 1. Introduction -- 2. Respiratory Strategies -- 3. Respiratory Organs -- 3.1. Water Breathing -- 3.2. Air Breathing -- 4. Ventilatory Mechanisms -- 4.1. Cutaneous Gas Exchange -- 4.2. Ventilation of External Gills -- 4.3. Ventilation of Internal Gills -- 4.4. Ventilation of ABOs -- 5. Respiratory Control -- 5.1. Hypoxic and Hypercarbic Ventilatory Responses and Reflex Pathways -- 5.2. Receptors Involved in Reflex Ventilatory Control -- 6. Conclusions -- References -- Chapter 5: Gas Transport and Exchange -- 1. Introduction -- 2. Partitioning of O2 and CO2 Exchange Across the Respiratory Surfaces -- 2.1. Primitive Ray-Finned Fishes (Actinopterygii) -- 2.2. Lobe-Finned Fishes (Sarcopterygii) -- 2.3. Jawless Fishes (Agnatha) -- 3. Blood O2 Transport -- 3.1. General Principles of Hb Function. , 3.2. Factors Affecting the ArterioVenous O2 Difference -- 3.3. Survey of Extant Primitive Fishes -- 4. Transport and Elimination of CO2 -- 4.1. General Model of CO2 Transport and Excretion -- 5. Synthesis -- 5.1. How Do Primitive Fishes Compete with Other Fishes? -- 5.2. Primitive Fishes and the Evolution of Vertebrate Blood O2 and CO2 Transport Characteristics -- Acknowledgements -- References -- Chapter 6: Ionic, Osmotic, and Nitrogenous Waste Regulation -- 1. Introduction -- 1.1. Origins in Seawater -- 1.2. "Parting of the Ways": The Move to Freshwater -- 1.3. Key Sites of Osmoregulation and Nitrogen Excretion in Fishes -- 2. Ionic and Osmotic Regulation -- 2.1. In Seawater -- 2.2. In Freshwater -- 2.3. Moving Between the River and Sea -- 3. Nitrogen Excretion -- 3.1. Toxic Ammonia -- 3.2. Synthesis of Nitrogen End-Products -- 3.3. Excretion -- 3.4. The Challenges of Estivation -- 4. Concluding Remarks -- Acknowledgements -- References -- Chapter 7: Locomotion in Primitive Fishes -- 1. Introduction -- 2. Swimming Modes and Associated Morphological Adaptations -- 2.1. BCF Swimming -- 2.2. MPF Swimming -- 2.3. Modes of Fast-Start Behavior -- 3. Locomotor Muscles -- 4. Neuromotor Coordination -- 4.1. Axial Rhythm Generation Circuits -- 4.2. Mauthner Neurons and the Evolution of the Startle Neural Circuit -- 5. Locomotor Performance and Physiology -- 5.1. Continuous Swimming Performance -- 5.2. Fast-Start Performance -- 6. Conclusions -- References -- Chapter 8: Peripheral Endocrine Glands. I. The Gastroenteropancreatic Endocrine System and the Thyroid Gland -- 1. Introduction -- 2. Endocrine Pancreas and Related Gastrointestinal Endocrine System -- 2.1. Background and Definitions -- 2.2. Agnatha -- 2.3. Gnathostomes -- 2.4. Phylogenetic Considerations -- 3. Thyroid Gland -- 3.1. Background -- 3.2. Agnatha -- 3.3. Gnathostomes. , 3.4. Phylogenetic Considerations -- 4. Summary and Conclusions -- Acknowledgements -- References -- Chapter 9: Peripheral Endocrine Glands. II. The Adrenal Glands and the Corpuscles of Stannius -- 1. Introduction -- 2. Adrenal Glands -- 2.1. Background -- 2.2. Adrenocortical Homologue -- 2.3. Chromaffin Tissue -- 2.4. Prospective on the Adrenal Glands of Ancient Fishes -- 3. Corpuscles of Stannius -- 3.1. Background -- 3.2. Amiiformes -- 3.3. Semionotiformes -- 3.4. Basal Teleosts -- 3.5. Phylogenetic Considerations of the CS and STC in Fishes -- 4. Summary and Conclusions -- Acknowledgements -- References -- Chapter 10: Why Have Primitive Fishes Survived? -- 1. Introduction -- 2. Life During the Early Phanerozoic -- 3. The Teleosts -- 3.1. Feeding and Locomotion -- 3.2. Genome Duplication -- 4. Primitive Fishes: Relationships Between Groups -- 4.1. Agnathans -- 4.2. Elasmobranchs -- 4.3. Ratfishes/Chimaeras -- 4.4. Lungfishes -- 4.5. Coelacanths -- 4.6. Bichirs/Reedfishes -- 4.7. Sturgeons -- 4.8. Paddlefishes -- 4.6. Gars -- 4.10. Bowfin -- 5. Why Have These Primitive Fishes Survived? -- 5.1. Role of Physiology -- 5.2. Role of Genomics and Prospects for Future Research -- 6. Conclusions -- Acknowledgments -- References -- Index -- Other Volumes in the Series.
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  • 2
    Online Resource
    Online Resource
    Jordan Hill :Elsevier Science & Technology,
    Keywords: Polymers -- Effect of radiation on. ; Ion implantation. ; Ion bombardment -- Industrial applications. ; Polymers in medicine. ; Electronic books.
    Description / Table of Contents: Polymer materials are used in different fields of industries, from microelectronice to medicine. Ion beam implantation is method of surface modification when surface properties must be significantly changed and bulk properties of material must be saved. Ion Beam Treatment of Polymers contains results of polymer investigations and techniques development in the field of polymer modification by high energy ion beams. This book is intended for specialists in polymer science who have interest to use an ion beam treatment for improvement of polymer properties, for specialists in physics who search a new application of ion beam and plasma equipment and also for students who look for future fields of high technology. Chapter 1-3 are devoted to overview of the basic processes at high energy ion penetration into solid target. The historical aspects and main physical aspects are covered. A basic equipment principles and main producers of equipment for ion beam treatment are considered. Chapter 4 contains chemical transformations in polymers during and after high energy ion penetration. The modern methods and results of experimental and theoretical investigation are described. Chapters 5-10 are devoted to properties of polymers after ion beam treatment, regimes of treatment, available applications, in particular: increase of adhesion of polymers and a mechanism of an adhesion increase, wetting angle of polymer by water and its stability, adhesion of cells on polymer surface, drug release regulation from polymer coating and others. Chapter 11 contains our last results on polymerisation processes in liquid oligomer composition under high vacuum, plasma and ion beam conditions as simulation of free space environment. * By scientists working in polymer chemistry, physics of ion beam implantation and in development and production of ion beam equipment * Covering
    Type of Medium: Online Resource
    Pages: 1 online resource (327 pages)
    Edition: 1st ed.
    ISBN: 9780080556741
    DDC: 620.19204228
    Language: English
    Note: Front Cover -- Ion Beam Treatment of Polymers -- Copyright Page -- Table of Contents -- Introduction -- Chapter 1 Interactions of ion beam with polymer: physical picture -- References -- Chapter 2 Sources for ion beam treatment -- References -- Chapter 3 Interaction of ion beam with polymer: chemical picture -- References -- Chapter 4 Structure of polymers after ion beam treatment -- References -- Chapter 5 Wetting -- References -- Chapter 6 Adhesion -- References -- Chapter 7 Hardness -- References -- Chapter 8 Ion beam synthesis -- References -- Chapter 9 Biological and medical applications -- References -- Chapter 10 Protection in an aggressive environment -- References -- Chapter 11 Polymerization of liquid polymer matrix in free space environment -- Vacuum -- Space plasma -- Temperature variations -- Microgravity -- Meteorite fluency -- References -- Index.
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  • 3
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 5374-5379 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The dc self bias voltage developed during CH4/Ar radio frequency plasma-enhanced vapor deposition of thin films containing polycrystalline diamond grains within an a:C matrix (carbon-diamond) is found to influence the optical and mechanical properties of the films. In particular it is shown that there is a simultaneous etch deposition process which takes place, and that the dc bias can be used to control this etch rate, and hence the net film growth rate. When a balance between etching and deposition is achieved, the films show increased residual stress and optical density with exposure to Ar+ bombardment in the plasma. In addition to the measured dc bias the local electric field developed around the substrate is also found to significantly influence the energy with which ions impinge upon the growing film.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 15 (1999), S. 0 
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 59 (1991), S. 69-71 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Tetrahedrally co-ordinated amorphous carbon (amorphous diamond) deposited from the plasma stream of a vacuum arc on a graphite cathode is demonstrated as having semiconductor properties. The material is shown to form a heterojunction with both p- and n-type Si. A band gap of 2.9 eV is proposed for the a-diamond, based on the observed I-V characteristics of the heterojunction diodes. The material has a measured electrical breakdown strength of 109 V/m, which is comparable to that of high quality insulators such as SiO2 and Si3N4. Gas phase doping using B2H6, PH3, and N2 has been attempted.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 66 (1995), S. 2908-2913 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The helicon assisted reactive evaporation is a new plasma assisted reactive evaporation device that combines an evaporation source (electron-beam evaporator) and a high density plasma source (helicon plasma source), in a coaxial configuration where the evaporant material is transported through the plasma source. Evaporating silicon into an oxygen plasma yields a deposition rate of silica onto a 100-mm-diam substrate of 200 nm/min, with a refractive index identical to that of thermal silicon dioxide (1.46). This configuration is expected to have advantages over both plasma enhanced chemical vapor deposition and ion assisted deposition techniques, without exhibiting the serious drawback of requiring the handling of hazardous chemical precursors. Initial results show that the electron beam can be run in conjunction with the high density helicon plasma (1012 cm−3). © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 15 (1999), S. 0 
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 739-740 
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The Debye equation gives the spherically averaged diffracted intensity from a group of atoms and is exact under the first Born, or kinematic, approximation. Algebraic simplifications are developed for calculating multiplicities in the double summation and are used in a new algorithm for implementing this equation. The results for cubic, body-centred cubic and face-centred cubic systems agree exactly with previous methods while achieving substantial computational advantage.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Solar physics 40 (1975), S. 183-191 
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The determination of the location of the region of origin of hard X-rays is important in evaluating the importance of 10–100 keV electrons in solar flares and in understanding flare particle acceleration. At present only limb-occulted events are available to give some information on the height of X-ray emission. In fifteen months of OSO-7 operation, nine major soft X-ray events had no reported correlated Hα flare. We examine the hard X-ray spectra of eight of these events with good candidate X-ray flare producing active regions making limb transit at the time of the soft X-ray bursts. All eight bursts had significant X-ray emission in the 30–44 keV range, but only one had flux at the 3σ level above 44 keV. The data are consistent with most X-ray emission occurring in the lower chromosphere, but some electron trapping at high altitudes is necessary to explain the small nonthermal fluxes observed.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Solar physics 9 (1969), S. 269-277 
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A flare rising from behind the solar limb was recorded simultaneously by the UCSD X-ray detector on OSO-III (7.7–200 keV) and the Caltech photoheliograph on Robinson Laboratory roof (Hα). The de-occultation gives excellent spatial resolution of the X-ray source. Spectra suggest that the material was already heated to 27 000 000° and that the increase in flux was due to the de-occultation. The flux rise to maximum was proportional to the apparent area. The uniformity of this rise shows that there was no special kernel of emission. Comparison of the deduced volume with the bremsstrahlung formula gives a density of about 1010 for the 27 000 000° component of the flare; this is confirmed by consideration of the maximum possible coulomb braking. The actual decay is more likely by escape rather than coulomb braking.
    Type of Medium: Electronic Resource
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