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A relação entre o helicobacter pylori e as pequenas epitelizações colunares do esôfago distal com ou sem metaplasia intestinal
Get PDFIntrodução: A presença de metaplasia intestinal no esôfago distal (esôfago de
Barrett) é importante doença precursora do adenocarcinoma. O conhecimento sobre
os fatores de risco e o processo pelo qual o Barrett se desenvolve é de suma
importância e o H.pylori pode contribuir para esse desenvolvimento. Objetivo:
Analisar o impacto do H.pylori na mucosa gástrica sobre as metaplasias intestinais
no esôfago distal em áreas de epitelização colunar menores que 10 mm de
extensão, estratificado para gênero e idade. Método: Estudo retrospectivo com
inclusão de 373 pacientes consecutivos, com diagnóstico de epitélio colunar no
esôfago distal. Em todos foram pesquisados o H.pylori por dois métodos (urease e
histológico) e aplicados os fatores de exclusão e inclusão. Dividiu-se em dois
grupos: o primeiro agregando os pacientes sem diagnóstico histológico de esôfago
de Barrett (235 - 63%) e o segundo comportando os com diagnóstico histológico de
esôfago de Barrett (138 - 37%). Resultados: Não houve diferença significativa entre
os portadores ou não do H.pylori em relação à probabilidade de ter metaplasia
intestinal (p=0,587). Quando relacionado ao grupo geral, houve associação inversa
entre a bactéria e a epitelização colunar em esôfago distal. Idade (p=0,031), gênero
(p=0,013) e H.pylori (p=0,613) quando relacionados juntos à metaplasia intestinal
não mostraram relação significativa. Isoladamente, quando relacionados idade e
gênero, independente do H.pylori, surgiram resultados confirmando que pacientes
de idade mais avançada e mulheres apresentam maior incidência de metaplasia
intestinal (esôfago de Barrett). Conclusão: Existe uma relação inversa entre o
H.Pylori e as ECED, independente da presença ou não de metaplasia intestinal. Já
em relação à idade e gênero, independente do H.pylori, nota-se que em mulheres e
quanto maior for a idade dos indivíduos, há aumento no número de casos com
metaplasia intestinal no esôfago distal.Introduction: The presence of intestinal metaplasia in the distal esophagus
(Barrett's esophagus) is an important precursor of adenocarcinoma. Knowledge of
the risk factors and the process by which the Barrett develops is very importance and
H.pylori can contribute to this development. Objective: To analyze the impact of H.
pylori in the gastric mucosa of intestinal metaplasia in the distal esophagus in areas
of columnar epithelialization smaller than 10 mm in length, stratified for gender and
age. Method: A retrospective study in which were included 373 consecutive patients
diagnosed with columnar epithelium in the distal esophagus. In all it was searched
the H.pylori by two methods (urease and histology) and applied the inclusion and
exclusion factors. It is divided into two groups: the first adding patients without
histological diagnosis of Barrett's esophagus (235-63%) and the second comprising
the histologically diagnosed with Barrett's esophagus (138-37%). Results: There
was no significant difference between the carriers of H. pylori or not in relation to the
likelihood of having intestinal metaplasia (p = 0.587). When related to the general
group, there was an inverse association between the bacteria and the columnar
epithelialization in the distal esophagus. Age (p = 0.031), gender (p = 0.013) and H.
pylori (p = 0.613) when connected together to intestinal metaplasia showed no
significant relationship. In isolation; when related age and gender, regardless of H.
pylori emerged results confirming that older patients and women have a higher
incidence of intestinal metaplasia (Barrett's esophagus). Conclusion: The presence
or absence of intestinal metaplasia of distal esophagus when related to H. pylori in
the gastric mucosa, is not significant. In relation to age and gender, regardless of
H.pylori, we note that in women and the greater the age of the individuals, there is an
increase in the number of cases with intestinal metaplasia in the distal esophagus
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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