1,720,994 research outputs found
Air and bone conduction brain stem responses in adults and infants
No full textAir and bone conduction brain stem responses were recorded in 20 adults and 20 infants (16-20 months postconceptional age) with normal hearing. The stimuli were administered using a shielded TDH-39 headphone and a standard B-70A vibrator. Our results show that adults and infants have similar air and bone conduction brain stem thresholds. The comparison of input latency functions obtained with air and bone conduction clicks indicates that the acoustic stimulus generated by the bone vibrator excites more apical regions than that stimulated by the air conduction transient. This is related to the spectrum of the bone conduction click which has an energy peak at 1-2 kHz. Furthermore we found that the difference in latency between adults and infants for air-conducted clicks decreases along with the stimulus intensity and the latencies tend to overlap near the threshold
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
Dichotic performance of Italian subjects tested with English and Italian stop consonant-vowel stimuli
No full text15 normal-hearing, right-handed Italian subjects were tested dichotically with Italian and English stop consonant plus vowel combinations (CVs). The stimuli were modified on a computer-based routine so that the pre-voicing of Italian voiced CVs was 30 ms long. In this condition, a significant right-ear advantage and a consistent lag effect were observed with both Italian and English stimuli. In addition, no significant differences between the two types of stimuli (English and Italian) were observed in the dichotic performances (except when using the 90-ms lag, which resulted in a significant difference in performance)
[Systematic immunological monitoring of patients with laryngeal cancer: prospects and limitations]. FT Il monitoraggio immunologico sistematico nei pazienti portatori di cancro laringeo: prospettive e limiti.
No full textUse of the scale-up methods in injury prevention research: An empirical assessment to the case of choking in children
No full textThe scale-up method estimates the size of hard to count subpopulations. This method is based on the idea
that the proportion of subjects in a subpopulation E known to each member of the general population T is
the same as the proportion of members of E belonging to general population T.
The aim of this study is to assess if this method is suitable for estimating the number of foreign body
injuries and for setting up an algorithm in order to choose the most suitable subpopulations to use in estimates.
The scale-up estimator is robust and precise and the selection of subpopulations of known size is improved
by our algorithm
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
[Systemic immunological monitoring of patients with laryngeal carcinoma: humoral immunity]. FT Il monitoraggio immunologico sistematico nei pazienti portatori di carcinoma laringeo: l'immunita' umorale.
No full textUse of a hyaluronan-based biomembrane in the treatment of chronic cholesteatomatous otitis media
No full textAppropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
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