1,720,990 research outputs found
Impression Heater. Effectiveness of the thermal accelerator of dental impressions
No full textThe success in acquiring a precision impression in the dental field is a compromise between the processing time and the setting time of the impression material. A device called "Impression Heater" (EU application n ° EP20186042.6) has recently been patented, which consists of a self-heating disposable adhesive patch with an exothermic chemical reaction to be placed on the dental impression tray. The aim of the study was to evaluate the effectiveness of a thermal impression accelerator in reducing the setting time of different elastomers
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
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
Appropriate 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
An Approach for Model Based Testing of Augmented Reality Applications
No full textThe popularity of Augmented Reality (AR) applications has strongly been increased with the worldwide success of the Pokemon Go videogame released by Niantic in 2016. However, AR offers tangible benefits in many further areas beyond entertainment, such as advertisement, education, navigation, maintenance, health, and so on. With the growing spread and success of AR applications in these fields, there has also been a growing necessity for approaches and technologies for assuring the quality of these applications, such as testing. A few technologies and frameworks have been recently proposed supporting the implementation and execution of test scripts that can be used to exercise the applications, but there still is a lack of effective techniques and tools for the automatic generation of executable test cases. In this paper, we investigate the possibility of using Model Based Testing techniques to generate executable test scripts from Finite State Machines modeling the behaviour of the GUI of AR applications, similarly to other GUI based applications. We have applied several model coverage criteria to design test suites and we have shown the feasibility of this approach by testing two small example applications involving Unity3D and Vuforia technologie
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Fast optimized smooth handoff (FOSH)
No full textThe Mobile IP protocol and its extension optimized smooth handoff are significantly detrimental to quality requirements of real-time applications. In this paper we propose and discuss FOSH (fast optimized smooth handoff), a procedure aiming at extending the improvements introduced by optimized smooth handoff to obtain an efficient scheme for the transmission of real-time traffic in scenarios where frequent handoffs are likely. The basic idea of FOSH is to provide the foreign agent with a neighbours cache allowing it to store the IP addresses of its adjacent foreign agents. Using such cache, the foreign agent can advertise to mobile nodes in its wireless network mobility services offered from adjacent foreign agents. This mechanism is provided in addition to the conventional advertising in order to give the MN a description of the surrounding environment. Specifically, the mobile node is able to send the registration message in advance. Simulations are presented to show the efficiency of the proposed scheme
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