1,721,628 research outputs found
Dielectric properties of colon polyps, cancer, and normal mucosa: Ex vivo measurements from 0.5 to 20 GHz
Get PDFThis is the accepted version of the following article: Guardiola, M. , Buitrago, S. , Fernández‐Esparrach, G. , O'Callaghan, J. M., Romeu, J. , Cuatrecasas, M. , Córdova, H. , González Ballester, M. Á. and Camara, O. (2018), Dielectric properties of colon polyps, cancer, and normal mucosa: Ex vivo measurements from 0.5 to 20 GHz. Med. Phys., 45: 3768-3782. doi:10.1002/mp.13016, which has been published in final form at https://aapm.onlinelibrary.wiley.com/doi/pdf/10.1002/mp.13016.
This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [http://olabout.wiley.com/WileyCDA/Section/id-820227.html].Colorectal cancer is highly preventable by detecting and removing polyps, which are the precursors. 20 Currently, the most accurate test is colonoscopy, but still misses 22% of polyps due to visualization limitations. In this paper we preliminary assess the potential of microwave imaging and dielectric properties (e.g. complex permittivity) as a complementary method for detecting polyps and cancer tissue in the colon. The dielectric properties of biological tissues have been used in a wide variety of applications, including safety assessment of wireless technologies and design of medical diagnostic or therapeutic techniques 25 (microwave imaging, hyperthermia and ablation). The main purpose of this work is to measure the complex permittivity of different types of colon polyps, cancer and normal mucosa in ex vivo human samples to study if the dielectric properties are appropriate for classification purposes.Peer ReviewedPostprint (author's final draft
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
Informe jurídico sobre la Casación Laboral N.º 13016-2022-LIMA
Get PDFEste trabajo analiza el caso de Casación Laboral N.º 13016-2022-LIMA,
enfocado en el despido del señor Juan Miguel Mendoza Gómez por parte de
INDECO S.A., tras un incidente grabado en video en el que se observa una
broma laboral. Se examinan los fundamentos jurídicos del despido, la
interpretación de la falta grave según el artículo 25 en los incisos a) y f) de la Ley
de Productividad y Competitividad Laboral (LPCL), y la resolución de la Corte
Suprema. El análisis aborda la interacción entre la normativa de seguridad y
salud en el trabajo y las políticas de despido, así como la protección de los
derechos laborales.
El caso se centra en determinar si los gestos realizados por el señor Mendoza
constituyen un faltamiento de palabra en el contexto laboral, y si las acciones de
la empresa fueron proporcionales y justas. A través de este estudio, se enfatiza
la importancia de la seguridad y salud en el trabajo, especialmente en situaciones
que pueden parecer triviales, como las bromas laborales. Se destaca cómo estas
pueden derivar en conflictos serios y en la interpretación de faltas graves. Esta
investigación proporciona una visión integral sobre cómo los tribunales
interpretan y aplican la legislación laboral en situaciones concretas, y subraya la
relevancia de un entorno de trabajo seguro y respetuoso.This paper analyzes the Labor Cassation No. 13016-2022-LIMA case, focused
on the dismissal of Mr. Juan Miguel Mendoza Gómez by INDECO S.A., following
a recorded workplace prank incident. It examines the legal grounds for the
dismissal, the interpretation of gross misconduct under Article 25, subsections a)
and f), of the Labor Productivity and Competitiveness Law (LPCL), and the
Supreme Court's decision. The analysis explores the interaction between
occupational safety and health regulations and dismissal policies, as well as the
protection of labor rights.
The case centers on determining whether Mr. Mendoza's gestures constituted a
verbal offense in the workplace context and whether the company's actions were
proportionate and fair. This study emphasizes the importance of workplace safety
and health, especially in seemingly trivial situations like workplace pranks. It
highlights how these can lead to serious conflicts and the interpretation of serious
offenses. This research provides a comprehensive view of how courts interpret
and apply labor legislation in specific situations and underscores the significance
of a safe and respectful work environment
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
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