86,814 research outputs found
Analisi delle caratteristiche audiologiche e delle comorbidità in pazienti con acufene cronico
No full textAsymmetric hearing loss and vertigo in a patient with idiopathic normal pressure hydrocephalus
No full textTheoretical equilibrium and growth morphology of CaCO3 polymorphs. I. Aragonite
No full textPeriodic bond chain (PBC) analysis is performed using a potential function fitted to elastic, structural and vibrational properties of aragonite. The resulting equilibrium form of the crystal, bounded by six forms having F character, is dominated by {0 1 1}, {1 1 0} and {1 0 2}, other forms being {1 1 1}, {0 1 0} and {0 0 1}, the corresponding specific surface energy γ has a mean value of ≈940 erg/cm2. The theoretical growth shape is defined by five F-forms: {1 1 0}, {0 1 0}, {0 1 1}, {0 0 1}, {1 0 2} and a stepped one, {0 2 1}. Its habit depends on what value of the attachment energy of {0 1 1} is considered. The agreement between the theoretical growth morphology and that of natural crystals is not fully satisfactory: as a matter of fact three out of the eight forms bounding the averaged natural morphology (i.e., {1 1 1}, {0 1 2} and {1 2 1}) are missing in the theoretical growth morphology. From the observation of the natural gypsum/aragonite epitaxy, a simple model is proposed to explain the striking morphological difference between the pseudo-symmetrical zones [0 1 0] and [1 1 0] in natural aragonite crystals. The variation on the attachment energy of {0 1 0}, induced by water adsorption, improves the fit between theory and observation around these zones, especially when the distribution of their vicinal faces is considered. The same reasoning on water adsorption is extended to the specific surface energy of the crystal: a theoretical value of 330 erg/cm2 is calculated for γcrystal/water of the face (0 1 0)
Growth kinetics of epsomite (MgSO4·7H2O)
No full textGrowth isothermes of the most important F forms (110), (010), (111), (-1-1-1), (100) of epsomite were measured on single crystals growing from pure aquous solutions at 30 and 40 °C. The results are discussed and compared with previous reported data
Variations on the Author
No full text“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
Shedding light on the tt¯ asymmetry: the photon handle
No full textWe investigate a charge asymmetry in tt¯γtt¯γ production at the LHC that provides complementary information to the measured asymmetries in tt¯tt¯ production. We estimate the experimental uncertainty in its measurement at the LHC with 8 TeV and 14 TeV. We argue that, for new physics models that simultaneously reproduce the asymmetry excess in tt¯tt¯ production at the Tevatron and the SM-like asymmetry at the LHC, the measurement in tt¯γtt¯γ production at the LHC is likely to deviate from the SM prediction. In two new physics models studied in detail we find that the deviations could be significant and observable at the 14 TeV run.Fil: Aguilar Saavedra, Juan Antonio. Universidad de Granada; EspañaFil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Juste, A.. Institució Catalana de Recerca i Estudis Avancats; EspañaFil: Rubbo, F.. Institut de Física d’Altes Energies; Españ
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
No full textNewspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
Growth of sucrose crystals and tapering effect studied by Holographic interferometry
No full textEffects of dopant raffinose on the growth of sucrose crystals are studied by means of holographic interferometry. By the distibution of hologram fringes the selective doping effect is measured on (100), (110) and (1-10) forms. An interpretation is put forward for the tapering effect in the wedge shaped crystals
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
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