1,720,957 research outputs found
The COVID-19: Yet another Viral Spill-Over of Unexpected Consequences
No full textThe human coronaviruses (CoV) are the causative agent of respiratory illness in human especially during winter and fall. They were first identified in 1960’s. The four corona strains i.e. NL63, 229E, HKU1 and OC63 accounts for about 30% of the annual common cold incidences ranging from mild to moderate illness in human worldwide. These are the largest RNA viruses from the sub-family Orthocoronavirinae of family Coronaviridae. Interestingly, the crown like spikes on their surface make them unique. So far four different groups of coronaviruses have been identified namely: alpha-, beta-, delta-, gamma- coronaviruses [1]. Beside the reported human-only beta coronaviruses HKU1 and OC63; lethal outbreaks of three other beta corona viruses i.e. Severe AcuteRespiratory Syndrome (SARS), Middle East Respiratory Syndrome (MERS) and SARS-CoV2 - viruses were documented. The later three viral strains were confirmed as evolved viruses from animal origin. The genetic diversity of these viruses is sought to be facilitated by recombination and mutational events within the intermediate host predominantly a mammal
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
Klinička važnost dodatnih trombocitnih pokazatelja u dijagnostici imune trombocitopenije
Get PDFImmune thrombocytopenia (ITP) is an autoimmune disorder. Besides platelet
count, immature platelet fraction (IPF) can be used as a tool to predict megakaryocytic activity in ITP
patients. The aim of the study was to evaluate the utility of extended platelet indices in ITP diagnosis
and their association with disease persistence and severity. This case-control study (1:1), conducted from
January 2015 to December 2017, included 111 ITP patients and 111 healthy controls. ITP patients
were grouped as newly diagnosed ITP, persistent ITP, chronic ITP, and refractory ITP patients. Peripheral
blood was collected and complete blood profile parameters were recorded using Sysmex XN 1000.
Significant (p≤0.05) difference between the groups of ITP patients and healthy control subjects was
determined by Fisher exact test, while Pearson correlation was used to evaluate platelet count correlation
with IPF using SPSS ver. 23. Low hemoglobin and platelet counts with high total leukocyte count
and IPF were detected in ITP patients as compared to healthy subjects (p≤0.001). Among all groups of
ITP patients, very low platelet count (6.9±6.02.x109/L) with highest mean IPF (27.1±19.2%) was observed
in newly diagnosed ITP group. Other platelet parameters including mean platelet volume
(MPV), plateletcrit, platelet large cell ratio (P-LCR) and platelet distribution width values were also
altered in patient groups. Pearson correlation revealed negative relationship between platelet count and
IPF in all patient groups. With the advent of new, sophisticated hematologic analyzers, the IPF and
other platelet parameters provide simple, reliable and easier tools for predicting platelet disorders such
as ITP, and to some extent the disease severity. Besides IPF, the MPV and P-LCR seemed to predict
disease severity, treatment responsiveness, and duration of the disease to some extent.Imuna trombocitopenija (ITP) je autoimuna bolest. Uz broj trombocita, frakcija nezrelih trombocita (immature platelet
fraction, IPF) može se rabiti za predviđanje megakariocitne aktivnosti kod bolesnika s ITP-om. Cilj ovoga istraživanja bio je
procijeniti primjenu dodatnih trombocitnih indeksa u dijagnostici ITP-a te njihovu povezanost s ustrajnošću i težinom
bolesti.
Ovo ispitivanje slučajeva s kontrolnom skupinom (1:1) provedeno je od siječnja 2015. do prosinca 2017. godine, a
uključilo je 111 bolesnika s ITP-om i 111 zdravih kontrolnih ispitanika. Bolesnici s ITP-om podijeljeni su u skupine s novo
dijagnosticiranim, ustrajnim, kroničnim i refraktornim ITP-om. Prikupljeni su uzorci periferne krvi i parametri kompletnog
krvnog profila zabilježeni na uređaju Sysmex XN 1000. Značajne razlike (p≤0,05) između skupina bolesnika s ITP-om i
zdravih kontrolnih osoba utvrđene su Fisherovim egzaktnim testom, dok je Pearsonovom korelacijom procijenjena korelacija
broja trombocita s IPF pomoću SPSS ver. 23. Nizak hemoglobin i nizak broj trombocita uz visok ukupan broj leukocita i
visok IPF zabilježeni su u bolesnika s ITP-om u usporedbi sa zdravim osobama (p≤0,001). Među svim skupinama bolesnika
s ITP-om, vrlo nizak broj trombocita (6,9±6,02x109/L) uz najviši srednji IPF (27,1±19,2%) utvrđen je u skupini bolesnika s
novo dijagnosticiranim ITP-om. Ostali trombocitni parametri uključujući srednji volumen trombocita (mean platelet volume,
MPV), trombokrit, omjer velikih trombocita (platelet-large cell ratio, P-LCR) i širina distribucije volumena trombocita bili su
također promijenjeni u skupinama bolesnika s ITP-om. Pearsonova korelacija pokazala je negativan odnos između broja
trombocita i IPF u svim skupinama bolesnika. Uz nove, naprednije hematološke analizatore trombocitni parametri poput
IPF i drugi nude jednostavan, pouzdan i lakši način za predviđanje trombocitnih bolesti kao što je ITP, a do neke mjere i
težine bolesti. Uz IPF, čini se da MPV i P-LCR imaju utjecaj na težinu bolesti, odgovor na terapiju i trajanje bolesti
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
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