1,721,091 research outputs found
A new Real-Time RT-PCR Assay for Detection of Human Enterovirus 68 (EV-D68) in Respiratory Samples.
No full textA global reemergence of human enterovirus 68 (EV-D68) associated with severe respiratory illness was occurred during the 2014. We developed and validated an EV-D68-specific real-time RT-PCR for the detection of EV-D68 in respiratory samples. The rapid diagnosis of EV-D68 may contribute to better management of EV-D68 infections
Xenotropic and polytropic murine leukemia virus-related sequences are not detected in the majority of patients with chronic fatigue syndrome.
No full textXMRV and polytropic MLV-related virus have been controversially associated with chronic fatigue syndrome (CFS). Subsequent reports failed to detect XMRV and MLV-related virus in CFS patients, and the previous results have been interpreted as a massive laboratory contamination by mouse DNA sequences. Among 12 sequental CFS patients, two were positive for XMRV/MLV sequences. In contrast, 40 selected control subjects were negative CSF patients and controls were negative for mitochondrial mous-specific DNA sequences. These findings do not confirm the high frequency of MLV-related viruses infeciton in CFS patients, but also contrast the widespread laboratory contamination previously suggested
Human enterovirus and parechovirus infections in newborns with sepsis-like illness and neurological disorders.
No full textEnterovirus (HEV) and parechovirus (HPeV) infections are common in the neonatal period, and account for a large portion of febrile illnesses during the summer season. HEV infections appear clinically and seasonally similar to HPeV infections. In this study, we present the virological and clinical data from neonates infected with HEV or HPeV and hospitalized in a neonatal intensive care unit for sepsis-like illness or neurologic disorders. In the period January 2010 to October 2013, 54 cerebrospinal fluid (CSF) and 10 plasma samples were obtained from 60 newborns aged <30 days. A total of 7/60 (11.6%) patients were positive for HEV infection and 3 (5.0%) were positive for HPeV infection as determined by specific real-time RT-PCR. The most common clinical signs were fever, irritability, hyporeactivity and, in a few cases, rash. All infections were observed during the summer-fall period. In conclusion, HEV and HPeV were shown to account for a significant portion of febrile illnesses in neonates requiring hospitalization
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
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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