1,720,968 research outputs found

    İstanbul İli ve Çevresinde Toplanan Kenelerde, Nairo, Flebo ve Flavivirusların Araştırılması

    No full text
    Emanet, N., Investigation of Nairo, Phlebo and Flavivirus in Ticks Collected around Istanbul Province Hacettepe University Graduate School Health Scıences, MSc, thesis in Microbiology, Ankara, 2020. In this study, we aimed to screen tick-borne viruses, to determine the epidemiology of tick-borne diseases and to identify tick species in samples collected from around Istanbul province. Among arboviruses under the order Bunyavirales, Nairoviridae, Peribunyaviridae families and Flaviviridae family there are Nairovirus, Phlebovirus and Flavivirus genus which include tick-borne viruses with significant global health impact, such as Crimean- Congo hemorrhagic fever virus (CCHFV), severe fever with thrombocytopenia syndrome virus and tick-borne encephalitis virus. Arthropod surveillance provides information on regional vector-borne or non-pathogenic virus circulation, for the understanding virus epidemiology and risk assessment. In this study, we carried out nairovirus, phlebovirus and flavivirus screening in ticks via generic PCR, around Istanbul province which has a significant part of the urban population of Turkey. The detected strains were characterized via sequencing. A total of 7154 ticks were collected by flagging and animal sampling from 37 localities in Istanbul, Kırklareli, Edirne and Tekirdağ provinces, during 2013, 2014, 2015 and 2018 years. Morphological identification revealed Ixodes sp. (30.92%) to be the most abundant species, followed by Hyalomma marginatum (14.29%), Hyalomma scupense (13.45%), Haemaphysalis parva (9.40%), Rhipicephalus turanicus (8.17%) and others. The individuals were pooled in a total of 572 specimens, according to species, sex and collection sites. Nairovirus screening provided positive results in 0.7% (4/572) and phlebovirus screening provided positive results in 3.3% (19/572) of the pools. However, flavivirus RNA could not be detected in any tick pools. CCHFV and CCHFV-AP92 isolates were detected in the region. In addition, we obtained data on new tick-borne phleboviruses previously reported from Turkey. This is the first report from the region of tick-borne phleboviruses. Key words: Tick, Nairovirus, Phlebovirus, Flavivirus, PCREmanet, N., İstanbul İli ve Çevresinde Toplanan Kenelerde Nairo, Flebo ve Flavivirusların Araştırılması, Hacettepe Üniversitesi Sağlık Bilimleri Enstitüsü Mikrobiyoloji Programı Yüksek Lisans Tezi, Ankara, 2020. Bu çalışmada, İstanbul ili ve çevresinden toplanan örneklerde kene kaynaklı virüslerin taranması, kene kaynaklı hastalıkların epidemiyolojisinin belirlenmesi ve kene türlerinin tespit edilmesi amaçlanmıştır. Arbovirüsler içerisinde Bunyavirales takımında Nairoviridae, Peribunyaviridae ailelerinde ve Flaviridae ailesinde yer alan Nairovirüs, Flebovirüs ve Flavivirüs cinsleri, kenelerle bulaşma gösteren, aralarında Kırım-Kongo Kanamalı Ateşi (KKKAV), trombositopeni sendromlu yüksek ateş ve kene kaynaklı ensefalit virüsü gibi, tüm dünyada önemli sağlık sorunları oluşturmuş virüsleri içermektedir. Belirli bir bölgede vektör kaynaklı ya da patojen olmayan virüs aktivitesinin bilinmesi, hastalık riskinin değerlendirilebilmesi ve epidemiyolojik özelliklerin incelenebilmesi için, eklembacaklıların sürveyansı önem taşımaktadır. Bu çalışmada, ülkemizde nüfus yoğunluğu en fazla İstanbul ili ve çevresinden toplanan kene örneklerinde jenerik PZR yöntemleri ile nairo-, flebo- ve flavivirüsler araştırılmış, saptanan virüsler DNA dizi analizi ile tanımlanmış ve bulgular tartışılmıştır. Çalışma kapsamında 2013, 2014, 2015 ve 2018 yıllarında İstanbul, Kırklareli, Edirne ve Tekirdağ illerinden 37 lokasyondan bayraklama ve hayvan örneklemesi ile 7154 kene toplanmıştır. Morfolojik incelemeler, örnekler arasında en sık saptanan türün Ixodes sp. (%30,92) olduğunu göstermiş, bunu Hyalomma marginatum (%14,29), Hyalomma scupense (%13,45), Haemaphysalis parva (%9,40), Rhipicephalus turanicus (%8,17) ve diğerleri takip etmiştir. Toplanan örnekler; lokasyon, cinsiyet ve türe göre toplam 572 havuz olarak virüs taramasına alınmış, %0,7’sinde (4/572) nairovirüs ve %3,3’ünde (19/572) flebovirüs pozitifliği saptanmıştır. Ancak havuzlarda flavivirüs RNA’sı tespit edilememiştir. Bölgede KKKAV ve KKKAV-AP92 izolatı saptanmıştır. Bunun yanı sıra ülkemizden daha önce bildirilmiş olan yeni kene kaynaklı flebovirüslere dair veriler elde edilmiştir. Bu veriler kene kaynaklı flebovirüsler ile ilgili bölgeden yapılmış olan ilk bildirimdir

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Full text link
    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

    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 link
    We 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 link
    We 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

    Author Index

    No full text
    Nao informado

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

    No full text
    We 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 Under Sail The Imagination of Jack London, 1893-1902

    No full text
    In 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
    corecore