1,721,779 research outputs found

    How focussing on hydrogen bonding interactions in amino acids can miss the bigger picture: a high-pressure neutron powder diffraction study of epsilon-glycine.

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    Data associated with the paper: Parsons et al (2015) "How focussing on hydrogen bonding interactions in amino acids can miss the bigger picture: a high-pressure neutron powder diffraction study of epsilon-glycine", CrystEngComm, DOI: 10.1039/C5CE00327J

    A Non-Topological Mechanism for Negative Linear Compressibility

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    Single crystal diffraction data for UTSA-16 at high pressure.Cifs.cif: Crystallographic Information Files for the structure of UTSA-16 at high pressure. *.fcf: Corresponding single-crystal X-ray diffraction data sets for the structures in cifs.ci

    Exploiting Domain Knowledge in Making Delegation Decisions

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    @inproceedings{conf/admi/EmeleNSP11, added-at = {2011-12-19T00:00:00.000+0100}, author = {Emele, Chukwuemeka David and Norman, Timothy J. and Sensoy, Murat and Parsons, Simon}, biburl = {http://www.bibsonomy.org/bibtex/20a08b683088443f1fd36d6ef28bf6615/dblp}, booktitle = {ADMI}, crossref = {conf/admi/2011}, editor = {Cao, Longbing and Bazzan, Ana L. C. and Symeonidis, Andreas L. and Gorodetsky, Vladimir and Weiss, Gerhard and Yu, Philip S.}, ee = {http://dx.doi.org/10.1007/978-3-642-27609-5_9}, interhash = {1d7e7f8554e8bdb3d43c32e02aeabcec}, intrahash = {0a08b683088443f1fd36d6ef28bf6615}, isbn = {978-3-642-27608-8}, keywords = {dblp}, pages = {117-131}, publisher = {Springer}, series = {Lecture Notes in Computer Science}, timestamp = {2011-12-19T00:00:00.000+0100}, title = {Exploiting Domain Knowledge in Making Delegation Decisions.}, url = {http://dblp.uni-trier.de/db/conf/admi/admi2011.html#EmeleNSP11}, volume = 7103, year = 2011

    A generalization of Dung's Abstract Framework for Argumentation:Arguing with Sets of Attacking Arguments

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    One of the most widely studied systems of argumentation is the one described by Dung in a paper from 1995. Unfortunately, this framework does not allow for joint attacks on arguments, which we argue must be required of any truly abstract argumentation framework. A few frameworks can be said to allow for such interactions among arguments, but for various reasons we believe that these are inadequate for modelling argumentation systems with joint attacks. In this paper we propose a generalization of the framework of Dung, which allows for sets of arguments to attack other arguments. We extend the semantics associated with the original framework to this generalization, and prove that all results in the paper by Dung have an equivalent in this more abstract framework

    The Behaviour of Occupied and Void Space in Molecular Crystal Structures at High Pressure

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    The overall volume of a crystal structure can be partitioned into occupied (‘network’) and unoccupied (‘void’) space. Trends with pressure are very sensitive indicators of phase transitions, correlating closely with spectroscopic data, and can even reveal effects premonitory to loss of long-range order. This data set contains plots of network and void volumes as a function of pressure for crystal structures taken from The Cambridge Structural Database.The data set consists of images of network and void volume (in Å**3) as a function of pressure (in GPa). The Cambridge Database reference codes are also indicated in the title. Hence the file ABULIT_network.png contains the network volume plot for CSD Refcode ABULIT

    Ambidentate character of the 6-aminofulvene-2-aldiminate ligand containing both diimine and cyclopentadienyl donors

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    The 6-aminofulvene-2-aldiminate (AFA) ligand contains both cyclopentadienyl and diimine donors. The ligand preferentially coordinates to transition metals via the nitrogen atoms; however once these are occupied, the cyclopentadienyl ring may be coordinated to a Cp*Ru+ unit, providing bi- and trimetallic species. In the tetrahedral [Zn(Ph2AFA)2] (2) the metal is located approximately in the planes of the two ligands; however in the square-planar [Pd(Ph2AFA)2] (1) there is a severe distortion of the coordination and the metal is located almost 1.3 Å out of the planes of the two ligands. This situation arises to avoid the steric interaction of the ligand phenyl substituents. Treatment of 2 with [Cp*Ru(NCMe)3][BF4] gives [Cp*Ru(η5-Ph2AFA)] (3), providing the first example of the cyclopentadienyl coordination of an AFA ligand in which the nitrogen donors are vacant, and it is thought to form as a result of the fragmentation of an intermediate mixed Zn/Ru species. The X-ray structure of 3 provides some evidence for an interaction between the Ru center and one of the exocyclic carbon atoms, thus suggesting a fulvene form of the ligand in this complex. Similar treatment of 1 with [Cp*Ru(NCMe)3][BF4] provides a trimetallic PdRu2 species (4) in which both of the cyclopentadienyl rings in the complex 2 are coordinated to Ru. The complex [(Ph2AFA)Pd(Me)PPh3] (5) is formed on treatment of [(COD)PdMe(Cl)] with NaPh2AFA in the presence of PPh3, and preliminary investigations have shown that its activation with [Ni(COD)2] as a phosphine scavenger provides species active toward ethylene oligomerization and polymerization

    The Synergy of Electronic Commerce, Agents, and Semantic Web Services

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    Advancements in software agents and Semantic Web service technologies are generally enhancing the landscape of electronic commerce. Semantic Web service technologies promise the standardisation and discoverability of software capabilities for network-enabled organisations. Moreover, with the addition of the intelligence and autonomy of software agents, transactions may be equally automated for consumer-to-consumer, business-to-consumer, and business-to-business collaborations. The 2003 Workshop on Electronic Commerce, Agents, and Semantic Web Services was held in conjunction with the International Conference on Electronic Commerce (ICEC2003). The purpose of this workshop was to bring together researchers and practitioners in the areas of electronic commerce, agents, and Semantic Web services to discuss the state-of-art in each individual area in addition to the synergies among the areas. This paper contains a summary of the workshop presentations and a discussion of next steps for Semantic Web services created in the working sessions concluding the workshop

    The Behaviour of Occupied and Void Space in Molecular Crystal Structures at High Pressure

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    The overall volume of a crystal structure can be partitioned into occupied (‘network’) and unoccupied (‘void’) space. Trends with pressure are very sensitive indicators of phase transitions, correlating closely with spectroscopic data, and can even reveal effects premonitory to loss of long-range order. This data set contains plots of network and void volumes as a function of pressure for crystal structures taken from The Cambridge Structural Database.Wilson, Cameron; Parsons, Simon. (2021). The Behaviour of Occupied and Void Space in Molecular Crystal Structures at High Pressure, [dataset]. University of Edinburgh. School of Chemistry. https://doi.org/10.7488/ds/3217
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