178,302 research outputs found
Mapping responses to frequency sweeps and tones in the inferior colliculus of house mice
No full text23 novembre : Soutenance de thèse de Charles Ehret
No full textM. Charles Ehret soutiendra sa thèse de doctorat "Agir en vertu d'un autre. Thomas d'Aquin et l'ontologie de l'instrument" devant un jury composé de Jean-Baptiste Brenet - Université Paris 1-Panthéon-Sorbonne Cristina Cerami - CNRS Robert Pasnau - University of Colorado, Boulder Pasquale Porro - Université Paris-Sorbonne Marwan Rashed - Université Paris-Sorbonne Cecilia Trifogli - All Souls College, Oxford * le jeudi 23 novembre, à 14h en Sorbonne, EPHE, Salle Duroselle (plan d'accès) 14, r..
Audio-vocal interaction in the pontine brainstem during self-initiated vocalization in the squirrel monkey
No full textAppropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Letter from R. R. Zellick, Assistant Trust Officer, Anglo California National Bank of San Francisco, to Joseph R. Goodman, October 2, 1942
No full textLetter from R. R. Zellick, Assistant Trust Officer at The Anglo California National Bank of San Francisco, to Joseph R. Goodman, regarding property owned by Dave Tatsuno. Zellick mentions a dispute between current tenants and Tatsuno, and that Tatsuno has asked Goodman to help locate trustworthy tenants.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
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
Energy-momentum tensor from Wilson flow in lattice φ4-theory
No full textThe energy-momentum tensor (EMT) is the Noether current associated with
translations. It is of interest because, first of all, it has physical meaning as it
contains the energy density and the momentum density. Moreover, its trace can
be related to the beta function so that the scaling behaviour of the theory at
hand can be studied. We are particularly interested in the scaling behaviour of
strongly coupled theories. To explore the strong coupling regime it is necessary
to compute the EMT non-perturbatively, i.e. on the lattice. This complicates
matters greatly. On the lattice translation invariance is broken which leads to
additional terms in the translation Ward identity from which the EMT is derived.
This results in turn in the need to renormalise the EMT on the lattice.
In this thesis we extend recent studies on the renormalisation of the EMT
in four-dimensional gauge theory to the case of a three-dimensional scalar
theory to investigate its divergence structure and the numerical feasibility of the
suggested procedure on a more basic level. Furthermore, scalar φ4-theory in three
dimensions exhibits an infrared fixed point and can thus serve as a toy model to
examine mechanisms for building theories beyond the standard model.
Our strategy to renormalise the EMT on the lattice is to identify all possible terms
that can mix with both sides of the translation Ward identity. The renormalised
EMT is a combination of operators of the same or lower dimension obeying
the symmetries of the theory. The mixing is determined by requiring that the
renormalised EMT satisfies the correct Ward identities. Using different probes
in the translation Ward identity one can compute the coefficients of the EMT
by solving a linear system of equations. However, contact terms can arise. One
solution is the recently introduced Wilson flow. Its renormalisation properties allow for expectation values free of contact terms. That way the Wilson flow provides for a meaningful theoretical formulation of the EMT on the lattice that can be used in practice.
In this thesis we review the renormalisation properties and the phase diagram
of scalar φ4-theory in three dimensions, the translation Ward identity and the
EMT in the continuum, as well as the gradient flow for scalar theory. A large
part is dedicated to the perturbative renormalisation of the EMT on the lattice.
Finally, our strategy to compute the renormalisation constants of the EMT in
scalar theory non-perturbatively is discussed in detail, and our results for the
renormalisation constants are presented
Liftings for noncomplete probability spaces
No full textThe current state of knowledge concerning liftings for noncomplete probability spaces is discussed. This is a somewhat expanded version of the author's talk given at the 1991 Summer Conference on General Topology and Applications in Honor of Mary Ellen Rudin and Her Work.PT: S; CR: BURKE MR, IN PRESS P AM MATH S BURKE MR, 1991, ISRAEL J MATH, V73, P33 BURKE MR, 1992, ISRAEL J MATH, V79, P289 CARLSON T, THEOREM LIFTING CHRISTENSEN JPR, 1974, TOPOLOGY BOREL STRUC FREMLIN DH, 1989, HDB BOOLEAN ALGEBRAS, P877 INOESCUTULCEA A, 1966, 5TH P BERK S MATH ST, V2 IONESCUTULCEA A, 1967, CONTRIBUTIONS PROB 1, P63 IONESCUTULCEA A, 1969, TOPICS THEORY LIFTIN JECH TJ, 1978, SET THEORY JOHNSON RA, 1980, P AM MATH SOC, V80, P234 JUST W, IN PRESS T AM MATH S KUPKA J, 1983, INDIANA U MATH J, V32, P717 LOSERT V, 1983, LNM, V1080, P95 MAHARAM D, 1958, P AM MATH SOC, V9, P987 SHELAH S, 1983, ISRAEL J MATH, V45, P90 TALAGRAND M, 1982, P AM MATH SOC, V84, P379 VONNEUMANN J, 1931, CRELLES J MATH, V165, P109; NR: 18; TC: 0; J9: ANN N Y ACAD SCI; PG: 4; GA: BZ86BSource type: Electronic(1
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