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  • 1
    Online-Ressource
    Online-Ressource
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Schlagwort(e): Data mining. ; Electronic books.
    Materialart: Online-Ressource
    Seiten: 1 online resource (234 pages)
    Ausgabe: 1st ed.
    ISBN: 9783540775034
    Serie: Lecture Notes in Computer Science Series ; v.4512
    DDC: 006.3
    Sprache: Englisch
    Anmerkung: Intro -- Title Page -- Preface -- Organization -- Table of Contents -- Overview of Papers in 2006 Active Conceptual Modeling of Learning (ACM-L) Workshop -- Introduction -- Summary of Regular Papers -- Summary of Invited Papers -- Conclusion -- Architecture for Active Conceptual Modeling of Learning -- Introduction -- The Challenge -- An Enhanced Rewind Paradigm for Learning -- The Concept of "Database of Intention" -- Proposed Architecture -- Executable Conceptual Model Database Management System -- The Mass Interconnecting Persistent Storage -- Three Interrelated Modules -- Other Important Features and Capabilities -- Impact -- Possible Applications and Conclusion -- References -- Understanding the Semantics of Data Provenance to Support Active Conceptual Modeling -- Introduction -- Provenance Semantics - The W7 Model -- Theoretic Basis - Bunge's Ontology and Other Philosophical Work -- Overview of the W7 Model -- What -- When -- Where -- How -- Who -- Which -- Why -- Active Conceptual Modeling with Provenance Annotations -- Conclusion and Future Research -- References -- Adaptive and Context-Aware Reconciliation of Reactive and Pro-active Behavior in Evolving Systems -- Introduction and Motivation -- Evolving Reactive Behavior -- The (ECA)^2 Paradigm -- Meta-triggers (and Condition vs. Event Duality) -- Domain Description and Reasoning -- Declarative Semantics of L_{EAR} and Hypothetical Reasoning -- Defeasibility and Exceptions -- Experimental Observations -- Related Works -- Concluding Remarks and Future Work -- A Common Core for Active Conceptual Modeling for Learning from Surprises -- Introduction -- Formal Foundation -- Metamodeling, Formal Representation, and Mathematical Model Theory -- Tunable Formalism -- Executable Models -- Closed vs. Open World Assumption -- Ontological Approach -- Fully Reified High Level Constructs. , A Common ACM-L Core -- Conclusion -- Actively Evolving Conceptual Models for Mini-World and Run-Time Environment Changes -- Introduction -- Need for ER* Model -- ER* Methodology -- ER* Methodology for Evolving Applications -- Template Selection Driven Evolution -- ER* Example of E-Contract Application -- Event Handling and Template Selection Mechanism for Evolving Applications -- Related Work -- Conclusion -- References -- Achievements and Problems of Conceptual Modelling -- Introduction -- Information Systems Design and Development -- Information System Models in General -- Towards a Science of Modelling -- The Documentation and Knowledge Gap in Information Systems Modelling -- Modelling in General and for Information Systems -- Modelling By Suites of Models -- Specification of Structuring -- Languages for Structure Specification -- Integrity Constraints -- Representation Alternatives -- Specification of Functionality -- Operations for Information Systems -- Dynamic Integrity Constraints -- Specification of Workflows -- Architecture of Database Engines -- Data Extraction Frameworks -- Specification of Interactivity -- Story Space -- Media Type Suite -- Integrating Specification Aspects into Co-design -- The Abstraction Layer Model for Information Systems Development -- The Co-design Methodology -- Conclusion -- Metaphor Modeling on the Semantic Web -- Introduction -- Metaphor and Simile -- Requirements for a Tool to Model Metaphor -- Metaphor Modeling by UML Diagram -- A Metaphor-Based System for the Semantic Web -- A Simple Sub-system for Defining Metaphors -- A Computer-Assisted Sub-system for Defining Metaphors -- An Automatic Sub-system for Defining Metaphors -- A Metaphor Query/Search Sub-system -- Applications for Metaphor-Based Systems -- Application of Metaphor-Based Systems in Education. , Application of Metaphor-Based Systems in Surprise Detection -- Summary -- References -- Schema Changes and Historical Information in Conceptual Models in Support of Adaptive Systems -- Introduction -- Dynamics in UML -- Version Control -- Software Evolution and Transformations -- Software Reuse -- Conclusions -- References -- Using Active Modeling in Counterterrorism -- Introduction -- Background -- Terrorist Network -- Active Modeling -- Intelligent Terrorism Detection System -- Intelligence Evaluation -- Relationship Simplification -- Threat Factor and Threat Pattern Finding -- Conclusion -- References -- To Support Emergency Management by Using Active Modeling: A Case of Hurricane Katrina -- Introduction -- Problems with Current Generic Disaster Process Model -- Weakness of Conventional Conceptual Modeling -- Active Modeling -- Analyzing Hurricane Katrina by Active Modeling Concepts -- Case Study -- Proposed Approach -- Conclusion -- References -- Using Ontological Modeling in a Context-Aware Summarization System to Adapt Text for Mobile Devices -- Introduction -- Related Work -- Ontologies for Context-Aware Summarization -- Architecture of the System -- The Summarization Process -- Conclusions -- References -- Accommodating Streams to Support Active Conceptual Modeling of Learning from Surprises -- Introduction -- Our Approach -- Active ER Model -- Our Framework -- Example -- The Classroom -- The Surprise -- Tackling the Surprise -- Related Work -- Conclusion -- Approaches to the Active Conceptual Modelling of Learning -- Introduction -- The Theory of Stratified Systems and Levels of Human Cognition -- Foundations of Conceptual Modelling -- Modelling Situations and Modelling Processes -- Modelling: The Beginning -- Active Conceptual Modelling -- Different Models in Different Situations -- Information, Conceptual Constructs and Models. , Stratified Description of the Human Cognition System and Its Information Content -- Accumulating Information as Possibly Actual Instances of Predefined or Potential Concepts -- Example -- Conceptual Modelling, Understanding and Learning -- Discussion -- References -- Spatio-temporal and Multi-representation Modeling: A Contribution to Active Conceptual Modeling -- Introduction -- Conceptual Modeling: The MADS Approach -- Structural Modeling -- Spatio-temporal Modeling -- Multi-representation Modeling -- Conclusions and Future Work -- References -- Postponing Schema Definition: Low Instance-to-Entity Ratio (LItER) Modelling -- Introduction -- Systems Issues in Conceptual Modelling -- Data Issues in Conceptual Modelling -- Late Binding the Conceptual Modelling -- LItER Modelling -- The LItER Schema -- The LItER Architecture -- Discussion -- Conclusions and Further Work -- Research Issues in Active Conceptual Modeling of Learning: Summary of Panel Discussions in Two Workshops (May 2006) and (November 2006) -- Introduction -- The First ACM-L Workshop -- Goal -- Summary of Findings -- The 2^{nd} Workshop: The First International ACM-L Workshop -- Goal -- Summary of Findings -- Future Directions -- Conclusion -- References -- Author Index.
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  • 2
    Online-Ressource
    Online-Ressource
    Sydney : Sydney University Press
    Schlagwort(e): Animal welfare-Government policy-Australia ; Animal welfare-Political aspects-Australia ; Animal welfare-Moral and ethical aspects-Australia ; Human-animal relationships-Australia ; Australia-Politics and government ; Electronic books
    Beschreibung / Inhaltsverzeichnis: Animal welfare has attracted much attention in Australia in recent decades, yet the policy-making process remains poorly understood
    Materialart: Online-Ressource
    Seiten: 1 Online-Ressource (431 pages)
    ISBN: 9781743324745
    Serie: Animal Publics
    DDC: 179.3
    Sprache: Englisch
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 111 (1999), S. 3441-3448 
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: The photochemistry and photodissociation dynamics of the propargyl radical, C3H3, upon UV excitation is investigated by time- and frequency-resolved detection of hydrogen atoms. From a statistical analysis of the data, we conclude that formation of cyclopropenylidene, c-C3H2, is the dominant reaction channel. Around 22% of the excess energy is released into the translational degrees of freedom. By varying the excitation energy between 265 and 240 nm, microcanonical rates for the loss of a hydrogen atom can be obtained as a function of excess energy. The experimental rates, on the order of several 106 s−1, are in good agreement with Rice–Ramsperger–Kassel–Marcus (RRKM) calculations, provided a scaling factor is used for the vibrational frequencies, to account for the effects of anharmonicity. The interpretation is confirmed in experiments using monodeuterated propargyl radicals, H2CCCD, indicating a mechanism that proceeds via an initial [1,2] H-shift, followed by cyclization. © 1999 American Institute of Physics.
    Materialart: Digitale Medien
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  • 4
    Digitale Medien
    Digitale Medien
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 110 (1999), S. 1450-1462 
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: The photochemistry and photodissociation dynamics of the allyl radical upon ultraviolet (UV) excitation is investigated in a molecular beam by using time- and frequency-resolved photoionization of hydrogen atoms with Lyman-α-radiation. The UV states of allyl decay by internal conversion to the ground state, forming vibrationally hot radicals that lose hydrogen atoms on a nanosecond time scale. Two channels are identified, formation of allene directly from allyl, and isomerization from allyl to 2-propenyl, with a subsequent hydrogen loss, resulting in both allene and propyne formation. The branching ratio is between 2:1 and 3:1, with direct formation of allene being the dominant reaction channel. This channel is associated with site-selective loss of hydrogen from the central carbon atom, as observed in experiments on isotopically labeled radicals. Ab initio calculations of the reaction pathways and Rice–Ramsperger–Kassel–Marcus (RRKM) calculations of the rates are in agreement with the mechanism and branching ratios. From the measured Doppler profiles a translational energy release of 14±1 kcal/mol is calculated. The calculated value of 66 kcal/mol for the barrier to the 1,2 hydrogen shift from allyl radical to 2-propenyl is confirmed by the experimental data. © 1999 American Institute of Physics.
    Materialart: Digitale Medien
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  • 5
    Digitale Medien
    Digitale Medien
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 110 (1999), S. 5485-5488 
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: We report results on the photodissociation dynamics of the ethyl radical, C2H5. A beam of internally cold radicals is generated by supersonic jet flash pyrolysis of ethyl iodide or n-propylnitrite, respectively. Upon excitation into the A 2A13s Rydberg state ethyl dissociates, presumably on the ground-state surface, into ethylene and a hydrogen atom that is detected by time-resolved photoionization. By varying the excitation energy between 264 and 245 nm, microcanonical rates are obtained as a function of excitation energy. The reaction rates are on the order of 107 s−1, several orders of magnitude slower than expected from simple Rice–Ramsperger–Kassel–Marcus calculations. © 1999 American Institute of Physics.
    Materialart: Digitale Medien
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  • 6
    Digitale Medien
    Digitale Medien
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 107 (1997), S. 3329-3332 
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: The direct observation of the products, kinetics and translational energy release from the photodissociation of the allyl radical, C3H5, upon excitation in the near-uv is reported. A statistical analysis of the data shows that they are in agreement with allene formation being the dominant H-loss reaction channel. © 1997 American Institute of Physics.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    s.l. : American Chemical Society
    Journal of the American Chemical Society 111 (1989), S. 8951-8953 
    ISSN: 1520-5126
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    s.l. : American Chemical Society
    Journal of the American Chemical Society 116 (1994), S. 2137-2138 
    ISSN: 1520-5126
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 4003-4005 
    ISSN: 1089-7623
    Quelle: AIP Digital Archive
    Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: A method for the high-temperature generation of reactive species in supersonic molecular beams has been developed. Pyrolysis temperatures (25–1800 °C) can be maintained for longer than 100 h for extended experiments. Short contact time (≈10 μs) of the seeded (〈1 Torr partial pressure in 2 atm inert carrier gas) precursor molecules suppresses recombination of the product radicals. Number densities for radicals are estimated to be ≈1014 cm−3 at the sonic orifice with radical fluxes of ≈1016 s−1.
    Materialart: Digitale Medien
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  • 10
    Digitale Medien
    Digitale Medien
    s.l. : American Chemical Society
    Accounts of chemical research 25 (1992), S. 385-392 
    ISSN: 1520-4898
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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