101,041 research outputs found
Amotz Zahavi
No full textChapter from The Encyclopedia of Evolutionary Psychological Science. Todd K. Shackelford, Viviana A. Weekes-Shackelford (eds.)Amotz Zahavi was a pioneer in evolutionary theory, who proposed the famous handicap principle. In 2016, Zahavi was awarded a lifetime achievement award by Tel Aviv University for his work and contribution to the department of Zoology. Prior to this, he was awarded the Society for the Protection of Nature in Israel prize by the Israeli Ministry of Education for his contribution to the environment
Playmates [music] /
No full textFor voice and piano.; Caption title.; NLA's N copy cropped to 34 cm. ANL; Also available online http://nla.gov.au/nla.mus-vn2214425; NLA's NL copy from the collection of Keith Watson. ANL
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Violence
No full textHaer R, Hecker T. Violence. In: Shackelford TK, Weekes-Shackelford VA, eds. Encyclopedia of Evolutionary Psychological Science. Cham: Springer International Publishing; 2018: 1-7
Mathematical analysis of the waves propagation through a rectangular material structure in space–time
No full textAbstractWe consider propagation of waves through a spatio-temporal doubly periodic material structure with rectangular microgeometry in one spatial dimension and time. Both spatial and temporal periods in this dynamic material are assumed to be the same order of magnitude. Mathematically the problem is governed by a standard wave equation (ρut)t−(kuz)z=0 with variable coefficients. We consider a checkerboard microgeometry where variables cannot be separated. The rectangles in a space–time checkerboard are assumed filled with materials differing in the values of phase velocities kρ but having equal wave impedance kρ. The difference between dynamic materials and classical static composites is that in the former case the design variables will also be time dependent. Within certain parameter ranges, the formation of distinct and stable limiting characteristic paths, i.e., limit cycles, was observed in [K.A. Lurie, S.L. Weekes, Wave propagation and energy exchange in a spatio-temporal material composite with rectangular microstructure, J. Math. Anal. Appl. 314 (2006) 286–310]; such paths attract neighboring characteristics after a few time periods. The average speed of propagation along the limit cycles remains the same throughout certain ranges of structural parameters, and this was called in [K.A. Lurie, S.L. Weekes, Wave propagation and energy exchange in a spatio-temporal material composite with rectangular microstructure, J. Math. Anal. Appl. 314 (2006) 286–310] a plateau effect. Based on numerical evidence, it was conjectured in [K.A. Lurie, S.L. Weekes, Wave propagation and energy exchange in a spatio-temporal material composite with rectangular microstructure, J. Math. Anal. Appl. 314 (2006) 286–310] that a checkerboard structure is on a plateau if and only if it yields stable limit cycles and that there may be energy concentrations over certain time intervals depending on material parameters. In the present work we give a more detailed analytic characterization of these phenomena and provide a set of sufficient conditions for the energy concentration that was predicted numerically in [K.A. Lurie, S.L. Weekes, Wave propagation and energy exchange in a spatio-temporal material composite with rectangular microstructure, J. Math. Anal. Appl. 314 (2006) 286–310]
Map of the village of Weekes and suburban lands [cartographic material] : Parish of Bellingen, County of Raleigh, Land District of Bellingen, Bellingen Shire, N.S.W., 1915 /
No full textCadastral town map of the village of Weekes, New South Wales, showing boundaries and landowners.; Dyeline print.; "Date of map: 9th March, 1915".; "No. of Lith. 15.58.T".; Includes notes and tables.; Also available online http://nla.gov.au/nla.map-vn391186. Inset: Local sketch. Scale [ca. 1:1,520,640]
Handwritten biographical information on Paulina T. McClung Merritt
No full textA handwritten biography of Paulina T. McClung Merritt by an unknown author, 1892.
Heterogeneous and tissue-specific regulation of effector T cell responses by IFN-gamma during Plasmodium berghei ANKA infection.
No full textIFN-γ and T cells are both required for the development of experimental cerebral malaria during Plasmodium berghei ANKA infection. Surprisingly, however, the role of IFN-γ in shaping the effector CD4(+) and CD8(+) T cell response during this infection has not been examined in detail. To address this, we have compared the effector T cell responses in wild-type and IFN-γ(-/-) mice during P. berghei ANKA infection. The expansion of splenic CD4(+) and CD8(+) T cells during P. berghei ANKA infection was unaffected by the absence of IFN-γ, but the contraction phase of the T cell response was significantly attenuated. Splenic T cell activation and effector function were essentially normal in IFN-γ(-/-) mice; however, the migration to, and accumulation of, effector CD4(+) and CD8(+) T cells in the lung, liver, and brain was altered in IFN-γ(-/-) mice. Interestingly, activation and accumulation of T cells in various nonlymphoid organs was differently affected by lack of IFN-γ, suggesting that IFN-γ influences T cell effector function to varying levels in different anatomical locations. Importantly, control of splenic T cell numbers during P. berghei ANKA infection depended on active IFN-γ-dependent environmental signals--leading to T cell apoptosis--rather than upon intrinsic alterations in T cell programming. To our knowledge, this is the first study to fully investigate the role of IFN-γ in modulating T cell function during P. berghei ANKA infection and reveals that IFN-γ is required for efficient contraction of the pool of activated T cells
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
A study of effects of social group work clubs upon fifth and sixth grade members at David T. Howard and E.P. Johnson Schools, 1942
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