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  • 1
    Keywords: Konferenzschrift ; Schottland ; Geologie ; Kaledonische Gebirgsbildung
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (XII, 768 Seiten)
    Series Statement: Geological Society special publication 8
    DDC: 551.7/2/0941
    RVK:
    Language: English
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  • 2
    Keywords: Geology, Stratigraphic Congresses ; Paleozoic ; Orogenic belts Congresses ; North America ; Orogenic belts Congresses ; Europe ; Caledonian orogenic regions ; Geology, Stratigraphic++Paleozoic ; Konferenzschrift ; Nordamerika ; Kaledonische Gebirgsbildung ; Tektonik ; Geologie ; Europa ; Kaledoniden ; Paläozoikum ; Orogenese ; Kaledonische Gebirgsbildung ; Orogen
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (X,643 Seiten)
    ISBN: 0632017961
    Series Statement: Geological Society special publication 38
    DDC: 551.732091821
    RVK:
    Language: English
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  • 3
    Online Resource
    Online Resource
    Dordrecht :Springer Netherlands,
    Keywords: Geology, Stratigraphic-Paleozoic-Congresses. ; Geology-Great Britain-Congresses. ; Electronic books.
    Description / Table of Contents: Proceedings of the NATO Advanced Study Institute, Liverpool, U.K., August 19-September 2, 1984.
    Type of Medium: Online Resource
    Pages: 1 online resource (356 pages)
    Edition: 1st ed.
    ISBN: 9789400946545
    Series Statement: Nato Science Series C: Series ; v.175
    Language: English
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  • 4
    Online Resource
    Online Resource
    Saint Louis :Elsevier Science & Technology,
    Keywords: Danielli, J. F. -- (James Frederic), -- 1911-1984. ; Cell membranes. ; Electronic books.
    Description / Table of Contents: Membrane Research: Classic Origins and Current Concepts is a special volume of the International Review of Cytology dedicated to Dr. Danielli on the occasion of his retirement from official duties. The central theme of the volume is membranes. The diversity of topics ranges from the biogenesis of membranes and their components, to the use of optical and lectin probes as a means to study the structure, physiology, and interactions of cell components and organelles in plant and animal systems. The book begins with a study on the cell surface of the mammalian embryo and the events associated with the formation of the differentiated blastocyst. This is followed by separate chapters on the structural associations between the inner and outer bacterial membrane; the interactions of cell wall and membrane in plant cells; the morphological and functional aspects of membranes; and methods for studying the physiology of cell and organelles at the membrane level. Subsequent chapters deal with the synthesis of cellular proteins and glycoproteins; techniques for fixing and preserving the ultrastructure of the membrane; the synthesis of artificial organelles; and the effects of drugs and chemicals on membrane transport utilizing kidney tissue and vesicles. This book provides an outstanding reference source for all scientific researchers and teachers.
    Type of Medium: Online Resource
    Pages: 1 online resource (455 pages)
    Edition: 1st ed.
    ISBN: 9781483271996
    DDC: 574
    Language: English
    Note: Front Cover -- Membrane Research: Classic Origins and Current Concepts -- Copyright Page -- Table of Contents -- Dedication -- List of Contributors -- INTERNATIONAL REVIEW OF CYTOLOGY -- Foreword -- Preface -- Reminiscence of My Collaboration with Jim Danielli in the Writing of The Permeability of Natural Membranes -- Chapter 1. Membrane Events Associated with the Generation of a Blastocyst -- I. Cell Position, Cell Fate, and Selective Gene Expression -- II. The Generation of Inside:Outside Differences in the Mouse Morula -- III. The Maintenance of Two Cell Lineages in the Mouse Morula -- IV. The Role of Cell Membranes and Interactions in the Cytodifferentiation of a Blastocyst -- V. The Role of the Membrane in Morphogenesis -- VI. Conclusions -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 2. Structural and Functional Evidence of Cooperativity between Membranes and Cell Wall in Bacteria -- I. Introduction -- II. Ultrastructure of the Cell Envelope: The Outer Membrane -- III. Intramembranous Particles -- IV. Periplasmic Space -- V. Inner (Protoplasmic) Membrane -- VI. Evidence for Structural Associations between the Inner and Outer Membrane -- VII. The Functional Cooperativity between the Membranes of the Cell Envelope -- VIII. Responses of the Cell: Cell Surface Growth and Functional Mosaicism -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 3. Plant Cell Surface Structure and Recognition Phenomena with Reference to Symbioses -- I. Introduction -- II. Plant Lectins -- III. The Plant Cell Wall and Recognition Phenomena -- IV. Plant-Microbe Symbioses -- V. Recent Attempts to Synthesize Plant-Microbe Symbioses -- VI. The Use of Lectins to Probe Symbioses -- VII. Concluding Remarks -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 4. Membranes and Cell Movement: Interactions of Membranes with the Proteins of the Cytoskeleton -- I. Introduction. , II. Components of the Cytoskeleton -- III. Interactions of Cytoskeletal Elements with the Plasma Membrane in Selected Systems -- IV. Afterword -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 5. Electrophysiology of Cells and Organelles: Studies with Optical Potentiometric Indicators -- I. Introduction -- II. Nonexcitable Cells -- III. Organelles -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 6. Synthesis and Assembly of Membrane and Organelle Proteins -- I. Introduction -- II. Structure of Integral Membrane Proteins and of Organelles -- III. Biosynthesis of the Envelope Glycoproteins of Vesicular Stomatitis Virus, and Sindbis Virus, and of Similar Glycoproteins -- IV. Biosynthesis of Other Transmembrane Proteins-Rhodopsin and the Anion Transport Protein -- V. Biogenesis of Integral, but Not Transmembrane, Proteins -- VI. Biosynthesis of Mitochondrial and Chloroplast Proteins -- VII. Biogenesis of Lysosomes -- VIII. Biogenesis of Peroxisomes -- IX. Biosynthesis of Extrinsic Membrane Proteins -- X. Conclusions and Prospects -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 7. The Importance of Adequate Fixation in Preservation of Membrane Ultrastructure -- I. The Unit Membrane Model versus the Unit Membrane Image -- II. Preservation of Membrane Ultrastructure -- III. New Approaches to the Localization of Proteins within Membranes -- IV. Coda -- REFERENCES -- Chapter 8. Liposomes-As Artificial Organelles, Topochemical Matrices, and Therapeutic Carrier Systems -- I. Introduction -- II. Reconstitution of Organellar Function -- III. The Topochemical Matrix -- IV. The Liposome as Therapeutic Carrier -- V. Conclusions -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 9. Drug and Chemical Effects on Membrane Transport -- I. Introduction -- II. Techniques -- III. Renal Organic Anion and Cation Transport -- IV. Drug and Chemical Effects on Transport -- V. Summary -- REFERENCES. , Index -- Curriculum Vitae: James F. Danielli -- Publications: James F. Danielli.
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  • 5
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 5913-5923 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A quantitative model is presented to describe the formation of volume holograms in a polymeric medium containing photopolymerizable acrylate monomers that undergo spatially modulated gelation as a result of exposure to a visible "write" beam. The model refines the simple diffusion model of Zhao and Mouroulis [J. Mod. Opt. 41, 1929 (1994)], by including cure dependence of both the photoreaction kinetics and the monomer diffusivity. These dependences are determined by experimental measurements, using near infrared spectroscopy to quantify the degree of cure and the time dependence of the hologram formation to infer the cure-dependent diffusivity. The cure-dependent diffusion coefficient can be fit by an expression from a free-volume theory, and the cure-dependent reaction rate coefficient is found to be proportional to the diffusivity, showing the reaction rate to be diffusion limited. With the model parameters determined experimentally, predictions are then made of the first, second, and third harmonics of the grating profile, and these are found to be in good agreement with the measured values. The results show the validity of the model and its usefulness in predicting the optimal exposure conditions and performance of a given holographic material. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Chemistry of materials 6 (1994), S. 122-126 
    ISSN: 1520-5002
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Picosecond transient absorption measurements from 1000–295 nm are used to monitor the recombination dynamics of iodine after photodissociation in a variety of inert solvents. The high time resolution and signal-to-noise ratio of these measurements permits the development of a detailed model of this reaction, which should resolve disagreements over the time scales of geminate recombination and vibrational relaxation and over the role of excited electronic state trapping. Most of the atoms which undergo geminate recombination do so in ≤15 ps, in agreement with the predictions of existing molecular dynamics simulations. The subsequent vibrational and electronic energy relaxation of the recombined molecule is relatively slow and accounts for most of the transient absorption dynamics. The relaxing X-state vibrational population distribution is extracted with an approximate method using calculated spectra of the excited vibrational levels and is compared to recent models. Vibrational relaxation times vary from ∼15 ps near the middle of the ground state well to ∼150 ps for complete relaxation to v=0. The vibrational relaxation rates do not provide support for the predicted role of resonant vibration-to-vibration energy transfer to chlorinated methane solvents, but some evidence for this mechanism is found in alkane solvents. B-state predissociation times of 10–15 ps and A'-state lifetimes of 65–2700 ps are found depending on the solvent. Current theory is not able to satisfactorily explain the large variation of the A'-state lifetime in various solvents.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 99 (1993), S. 6114-6125 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Direct measurements of interadsorbate vibrational energy flow among Si–H stretching modes on hydrogen-terminated, stepped vicinal H/Si(111) surfaces are made. A two-color picosecond infrared method is used in which one vibrational mode is pumped by a resonant infrared pulse and other vibrational modes are probed by vibrationally resonant sum frequency generation to observe energy transfer. The surfaces are prepared by chemical etching in HF solutions and have monohydride-terminated (111)-(1×1) terraces, and average terrace widths of approximately five atoms. Two types of surfaces, differing in having either monohydride- or dihydride-terminated steps, are examined. The results on both surfaces confirm that interadsorbate energy transfer competes efficiently with energy relaxation to the substrate. On the dihydride-stepped surface, the energy flow is analyzed to give a relatively complete kinetic model of the energy equilibration pathways. The model confirms that the fast relaxing dihydride-terminated steps (60–120 ps lifetime) drain a large fraction (∼2/3) of the terrace Si–H mode energy (the terrace mode intrinsic lifetime is fit to be ∼1.4 ns). The model is consistent with terrace–step energy transfer by dipole–dipole coupling between Si–H oscillators. On the monohydride-stepped surface, the experimental results suggest even stronger terrace–step coupling, but the monohydride step lifetime is long ((approximately-greater-than)500 ps) and does not drain the terrace mode energy. The coupling of the monohydride steps to the terraces by dipole interactions is in fact calculated to be strong enough so that the step and terrace modes mix, and detailed kinetic analysis of the monohydride-stepped surface is therefore ambiguous because of strong spectral interactions of the modes.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 90 (1989), S. 3878-3879 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Picosecond time-resolved measurements of vibrational energy relaxation from ν=1 to ν=0 for C–H stretching modes of the terminal methyl group in 9 Cd stearate Langmuir–Blodgett monolayer on an evaporated silver film were made. The experiments used infrared–visible sum spectroscopy to dynamically probe vibrational level populations. To the authors' knowledge, this is the first direct measurement of vibrational energy relaxation for molecular adsorbates at a bulk metal surface. Multicomponent decay processes with lifetimes of 3 ps to 〉1 ns indicate complex intramolecular vibrational energy transfer processes in these ordered monolayer films, which may be different than for similar molecules in liquids.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 96 (1992), S. 6203-6212 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We report measurements of excited-state lifetimes for Si–H stretching vibrational modes of steps and terraces on chemically prepared, hydrogen-terminated vicinal Si(111) surfaces using picosecond pump–probe surface spectroscopy. The steps present on these vicinal surfaces are shown to play an important role in the vibrational energy relaxation pathways. Three types of vicinal Si(111) surfaces are studied, all having monohydride-terminated terraces but differing in step termination or in step density. Two surfaces are cut along the 〈1¯1¯2〉 direction, 9° and 5° from the (111) plane, respectively. Both of these surfaces have dihydride-terminated steps. A third surface is cut 9° from the (111) plane along the 〈112¯〉 direction and has monohydride-terminated steps. Two normal modes of the dihydride-terminated steps show vibrational energy relaxation times of ∼100 ps [≤80 ps and 130(20) ps, uncertainty in parentheses], while the monohydride-terminated steps relax 10 times more slowly with an 1100(120) ps lifetime. On the dihydride-stepped 9° surface the lifetime of the terrace mode is shortened to 420(40) ps from the flat surface lifetime of 950(100) ps, while on the monohydride-stepped surface the terrace mode lifetime is 820(80) ps. The results are explained by energy transfer between the terrace and the step Si–H modes. The different dynamics on the monohydride- and dihydride-stepped surfaces arise because the short-lifetime dihydride steps act as energy drains, while the long-lifetime monohydride steps do not. Dipole–dipole coupling between the Si–H stretching modes can account for the interadsorbate vibrational energy transfer observed.
    Type of Medium: Electronic Resource
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