1,721,009 research outputs found
Rib grafts in septorhinoplasty
No full textAutogenous cartilage has generally been considered the gold standard grafting material in reconstructive septorhinoplasty for volume
filling and structural support. In the restructuring of the nasal skeleton, autogenous cartilage can be harvested from the nasal septum, the
auricle or the rib, but costal cartilage is considered the best graft material in patients requiring major reconstruction. Rib cartilage is an
outstanding material in reconstructive septorhinoplasty, especially in revision surgery and when large amounts of tissue are required. This
autologous material has a low rate of complications such as resorption, infection and extrusion compared to homografts and alloplastic
implants. In the present study, the authors analyze and discuss the use of autogenous rib cartilage in 54 patients who underwent primary
and revision septorhinoplasty. Its use is also suggested in cases in which there is a need to have a fair amount of cartilaginous tissue to be
grafted for nasal framework reconstruction and respiratory function improvement
A Simple Expression For The Ghost Contribution To The Fermion Emission Vertex In Superstring Theory
No full textGROUP THEORETICAL CONSTRUCTION OF TWO-DIMENSIONAL MODELS WITH INFINITE SET OFCONSERVATION LAWS.
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Scattering Of Closed Strings From Many D-Branes
No full textWe develop an operator formalism to compute scattering amplitudes of arbitrary bosonic string states in the background of many D-branes. Specifically, we construct a suitable boundary state which we use to saturate the multi-Reggeon vertex in order to obtain the generator of multi-membrane scattering amplitudes. We explicitly show that the amplitudes with h parallel D-branes are similar to amplitudes with h−1 open string loops
Variations on the Author
Full text link“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
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