481,873 research outputs found

    Cross-Cultural Meta-Analyses

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    In the enormous collection of cross-cultural data that have been published during the last few decades it is difficult to perceive patterns. There is a clear need for systematizing the vast amount of cross-cultural studies and for developing models that explain cross-cultural differences in psychology. Two methods of cross-cultural meta-analysis can be distinguished. First, the instrument-based method of comparing data for one instrument across countries is suitable for instruments which have been administered in many countries. Second, a domain-based meta-analysis used a thematic domain from which culture-comparative studies are sampled instead of one specific instrument or method

    Weld Solidification Cracking: Critical Conditions for Crack Initiation and Growth

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    C.E. Cross and N. Conigliohttp://www.springer.com/materials/special+types/book/978-3-540-78627-6?detailsPage=to

    Cross, W N, 412114

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    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/379742Surname: CROSS Given Name(s) or Initials: W N Military Service Number or Last Known Location: 412114 Missing, Wounded and Prisoner of War Enquiry Card Index Number: 49790193554 Item: [2016.0049.12035] "Cross, W N, 412114

    Analysis of (n-2n) cross sections.

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    The statistical model is used to derive an expression for the (n-2n) excitation function, taking into account (n-3n) competition. The (n-2n) cross sections thus obtained are found to agree with experiment over a wide range of energies extending well beyond the (n-3n) threshold

    A Systematic Investigation into Bisphosphine Ligands for Nickel-Catalyzed C(sp2)–N Cross-Coupling

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    Research into transition metal-catalyzed C–N cross-coupling reactions has been driven by a need for robust and facile synthetic routes towards bioactive molecules which are rich in C–N linkages. The use of Pd-based catalysts in Buchwald-Hartwig Amination (BHA) protocols are the most well studied and utilized within industry. The choice of Pd source, ancillary ligand, base, solvent, and the use of additives have been thoroughly investigated aiding in the selection and optimization of reaction conditions. However, research has refocused towards finding more Earth-abundant and cost-effective transition metals capable of comparable reactivity. Ni has proven to be a competitor with the development of new ancillary ligands after efforts to repurpose well-known ligands in Pd-catalysis had limited success. In particular, bisphosphines within the DalPhos ligand family have enabled the Ni-catalyzed N-arylation of challenging substrates including ammonia, alkylamines, heteroarylamines, indole, and amides with (hetero)aryl electrophiles prompting the commercialization of several ligand variants. The effects of varying experimental parameters within these ligand/Ni systems are less established and prompt further investigation in order to determine trends in reactivity and limitations. A systematic evaluation of selected bases and solvents on the effectiveness of leading DalPhos ligand variants in the C–N cross-coupling of structurally varied (hetero)aryl electrophiles with primary and secondary amines is reported herein

    Cross-Plane Seebeck Coefficient Measurement of Misfit Layered Compounds (SnSe)<sub><i>n</i></sub>(TiSe<sub>2</sub>)<sub><i>n</i></sub> (<i>n</i> = 1,3,4,5)

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    We report cross-plane thermoelectric measurements of misfit layered compounds (SnSe)n(TiSe2)n (n = 1,3,4,5), approximately 50 nm thick. Metal resistance thermometers are fabricated on the top and bottom of the (SnSe)n(TiSe2)n material to measure the temperature difference and heat transport through the material directly. By varying the number of layers in a supercell, n, we vary the interface density while maintaining a constant global stoichiometry. The Seebeck coefficient measured across the (SnSe)n(TiSe2)n samples was found to depend strongly on the number of layers in the supercell (n). When n decreases from 5 to 1, the cross-plane Seebeck coefficient decreases from −31 to −2.5 μV/K, while the cross-plane effective thermal conductivity decreases by a factor of 2, due to increased interfacial phonon scattering. The cross-plane Seebeck coefficients of the (SnSe)n(TiSe2)n are very different from the in-plane Seebeck coefficients, which are higher in magnitude and less sensitive to the number of layers in a supercell, n. We believe this difference is due to the different carrier types in the n-SnSe and p-TiSe2 layers and the effect of tunneling on the cross-plane transport
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