117,321 research outputs found
Dissertatio astronomica de methodo inveniendi latitudinem loci ex observatis duabus solis vel stellae cujusdam altitudinibus. Cujus particulam priorem cons. ampl. facult. philos. Aboëns. praeside mag. Joh. Henr. Lindquist, math. prof. r. [et] o. nec non R. Acad. Scient. Svec. membro. Publice ventilandam sistit Andreas Johannes Mether, stipend. reg. Tavastensis. In auditorio Maj. die XVIII April. MDCCXCII. h. a. m. c.
Get PDFDedikaatio: Carl Gustaf Mether [ruots. pr.].Painovuosi nimekkeestä.Arkit: 1 arkintunnukseton lehti, A-B4.Piirrosliitteen signeeraus: C. L. Schultz sc.Dedikaatio on ruotsinkielinen
A test on analytic continuation of thermal imaginary-time data
Get PDFBurnier Y, Laine M, Mether L. A test on analytic continuation of thermal imaginary-time data. European Physical Journal C. 2011;71(4): 1619
Meditationum philologicarum, de pericopa prima capitis decimi Johannis, inprimis voce thyrorô pars posterior; quam, consensu ampliss. facult. philos. in Reg. ad Auram Acad. praeside viro, maxime reverendo atq[ue] celeberrimo d:no Isaaco Ross, s. s. l. l. profess. reg. & ord. Pro gradu, publico examini modeste submittit Henricus H. Alanus, Borea-Fenn. In audit. superiori, die IV. Junii, anno MDCCLXIII. h. a. m. s.
No full textInvokaatio: D.F.G.Dedikaatio: Jacobus Malmsten, Nicolaus Hedeen, Ericus Wallenius, Jonas Dahlgren.Gratulaatio: J. J. Mether [ruots. pr.], C. Sedenius [ransk. pr.].Painovuosi nimekkeestä.Arkit: 2 arkintunnuksetonta lehteä, D-E4 F2.Nimekkeessä on kreikkaa. Ensimmäinen gratulaatio on ruotsinkielinen. Toinen gratulaatio on ranskankielinen
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Colour-electric spectral function at next-to-leading order
No full textBurnier Y, Laine M, Langelage J, Mether L. Colour-electric spectral function at next-to-leading order. JHEP. 2010;2010(8): 94.The spectral function related to the correlator of two colour-electric fields along a Polyakov loop determines the momentum diffusion coefficient of a heavy quark near rest with respect to a heat bath. We compute this spectral function at next-to-leading order, O(alpha_s^2), in the weak-coupling expansion. The high-frequency part of our result (omega >> T), which is shown to be temperature-independent, is accurately determined thanks to asymptotic freedom; the low-frequency part of our result (omega 0. We also evaluate the colour-electric Euclidean correlator, which could be directly compared with lattice simulations. As an aside we determine the Euclidean correlator in the lattice strong-coupling expansion, showing that through a limiting procedure it can in principle be defined also in the confined phase of pure Yang-Mills theory, even if a practical measurement could be very noisy there
Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?
No full textIn this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Letter from unknown writer to Jesse L. Boyce
No full textLetter to Jesse L. Boyce from unknown author (possibly Jack) about the investigation into the powder magazine located in the Grand Canyon. Some personal news is included in the letter such as the writer's marriage to the daughter of C.A. Taylor, former Supervisor of Cochise County
Electron cloud in the CERN accelerator complex
No full textOperation with closely spaced bunched beams causes the build-up of an Electron Cloud (EC) in both the LHC and the two last synchrotrons of its injector chain (PS and SPS). Pressure rise and beam instabilities are observed at the PS during the last stage of preparation of the LHC beams. The SPS was affected by coherent and incoherent emittance growth along the LHC bunch train over many years, before scrubbing has finally suppressed the EC in a large fraction of the machine. When the LHC started regular operation with 50 ns beams in 2011, EC phenomena appeared in the arcs during the early phases, and in the interaction regions with two beams all along the run. Operation with 25 ns beams (late 2012 and 2015), which is nominal for LHC, has been hampered by EC induced high heat load in the cold arcs, bunch dependent emittance growth and degraded beam lifetime. Dedicated and parasitic machine scrubbing is presently the weapon used at the LHC to combat EC in this mode of operation. This talk summarises the EC experience in the CERN machines (PS, SPS, LHC) and highlights the dangers for future operation with more intense beams as well as the strategies to mitigate or suppress the effect
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
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