1,722,057 research outputs found
Goodbye, Goodbye the call is near [first line of chorus]
strophic with choruspiano and voiceJohns Hopkins University, Levy Sheet Music Collection, Box
008, Item 083Composed by Stella L. Woosley
Goodbye, Goodbye the call is near [first line of chorus]
strophic with choruspiano and voiceJohns Hopkins University, Levy Sheet Music Collection, Box
008, Item 083Composed by Stella L. Woosley
Proton cyclotron features in thermal spectra of ultramagnetized neutron stars
A great deal of interest has been recently raised in connection with the possibility that soft gamma -ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) contain magnetars, young neutron stars endowed with magnetic fields greater than or similar to 10(14) G. In this paper we calculate thermal spectra from ultramagnetized neutron stars for values of the luminosity and magnetic field believed to be relevant to SGRs and AXPs. Emergent spectra are found to be very close to a blackbody at the star effective temperature and exhibit a distinctive absorption feature at the proton cyclotron energy E-c,E-p similar or equal to 0.63(B/10(14) G) keV. The proton cyclotron features (PCFs) are conspicuous (equivalent width of up to many hundreds eV) and relatively broad (DeltaE/E similar to0.05-0.2). The detection of the PCFs is well within the capabilities of present X-ray spectrometers, like the HETGS and METGS on board Chandra. Their observation might provide decisive evidence in favor of the existence of magnetars
Bioweapons against the killer bugs: a biophysicist view of the mechanism of action of antimicrobial peptides
Book review: Yves Mély and Guy Duportail (Eds.): Fluorescent methods to study biological membranes.
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
Special issue devoted to contributions presented at the 1st Italy-Korea Symposium on Antimicrobial Peptides, 24-25 July 2008
Variations on the Author
“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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