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A Simple Calculation of a Possible Variation in the Speed of Light
No full textThe idea of a possible variable light cosmology was recently investigated by certain authors. In our brief note an estimate for a possible variation in the speed of light can be calculated if fundamental relations of cosmology are used along with a plausible definition of the speed of light. Keywords: speed of light, cosmology, theory, Dirac, Gamow, Mach
Quantization of Torsion Effects in a De Sitter Universe With or Without a Black-Hole: Using the Zeldovich Definition of the Cosmological Constant
No full textThis article makes use of the Zeldovich definition of the cosmological constant in a De-Sitter universe in order to quantize the torsion effects with or without a black hole. For the De-Sitter metric without a black hole, we found that the spin has the values s = 1 / 9 , where in the case of the black hole being present in the metric, s = 2 / 9 , 4 / 9 . Furthermore, and for Planck mass black holes, we found a connection of the spin effects to the maximum curvature of the universe, when the quantum effects were important, and again with the help of the Zeldovich's definition of the cosmological constant, which is another result of the quantum field theory
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No full textAbstract: Recent observations confirm that galactic redshifts are quantized and hint at a possible new form of quantum mechanics on a cosmic scale, which could probably explain these observed properties of galaxies. This brief paper investigates a possible relationship between the new cosmic Planck constant � and other fundamental constants of physics
Journal of Theoretics Vol.4-1 A Different Derivation of the Calogero Conjecture
No full textAbstract: In a study by F. Calogero [1] entitled “ Cosmic origin of quantization”, an expression was derived for the variability of h with time, and its consequences within the cosmological framework were examined. In this paper we will offer a different derivation of the Calogero conjecture based upon a postulate concerning a variable speed of light, [2] in conjuction with Weinberg’s relationship for the mass of an elementary particle
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
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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
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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