1,720,961 research outputs found
Prevalencia de Campylobacter spp. en población adulta del Hospital Rawson de Córdoba
Full text link1 p.Fil: Prieto Carla Soledad. Hospital Rawson. Infectología; ArgentinaFil; López, Ana Claudia. Hospital Rawson. Infectología; ArgentinaFil: Paván, Javier. Hospital Rawson. Infectología; ArgentinaFil: Littvik, Ana. Hospital Rawson. Infectología; ArgentinaThe Campilobacter genus, wich has been identified as a cause of gastrointestinal infections since the 70´s, is considered now as the main cause of bacterial diarrhea in te pediatric population and an important microorganism in risk group.El género Campylobacter, reconocido desde los 70’como productor de infecciones gastrointestinales, ocupa en la actualidad el primer lugar como agente productor de diarreas bacterianas en población pediátrica y un importante microorganismo en grupos de riesgohttp://www.revista2.fcm.unc.edu.ar/jornadas.pdfFil: Prieto Carla Soledad. Hospital Rawson. Infectología; ArgentinaFil; López, Ana Claudia. Hospital Rawson. Infectología; ArgentinaFil: Paván, Javier. Hospital Rawson. Infectología; ArgentinaFil: Littvik, Ana. Hospital Rawson. Infectología; ArgentinaEnfermedades Infecciosa
Multiple-Clones of Streptococcus agalactiae harbouring lnuB gene
No full textFil: Faccone, Diego. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Servicio de Antimicrobianos; Argentina.Fil: Lalonardi, Florencia. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Servicio de Antimicrobianos; Argentina.Fil: Abel, Sofia. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Servicio de Antimicrobianos; Argentina.Fil: Machain, Monica. HIGA Hospital Dr. Abraham Piñeyro; Argentina.Fil: Errecalde, L. Hospital Dr. Juan A. Fernandez; Argentina.Fil: Littvik, Ana. Hospital Dr. Guillermo Rawson; Argentina.Fil: Kaufman, Sara. Hospital Dr. Juan A. Fernandez; Argentina.Fil: Galas, Marcelo F. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Servicio de Antimicrobianos; Argentina.Fil: Red de Vigilancia de la Resistencia a los Antimicrobianos. WHONET; Argentina.Fil: Corso, Alejandra. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Servicio de Antimicrobianos; Argentina
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
Detección de especies de Helicobacter en perros y humanos
Full text linkTesis - Doctorado en Ciencias de la Salud - Universidad nacional de Córdoba. Facultad de Ciencias Médicas. Secretaría de Graduados en Ciencias de la Salud, 2020Fil: Guendulain, Corina. Universidad Nacional de Rio Cuarto; Argentina.Helicobacter es un género bacteriano Gram negativo que coloniza el estómago de humanos y perros, entre otros mamíferos. La especie más frecuentemente hallada en la mucosa gástrica del hombre es H. pylori, implicada en la patogénesis de las gastritis crónicas, úlceras y neoplasias gástricas, sin embargo, existen otras especies de Helicobacter en el estómago del hombre, como H. suis, H. bizzozeronii, H. felis, H. salomonis y H. heilmannii sensu stricto, denominadas Helicobacter no H. pylori (NHPH). El perro tiene una altísima prevalencia de infección de su mucosa gástrica con estas especies de NHPH, H. felis, H. bizzozeronii, H. salomonis, H. cynogastricus y H. heilmannii sensu stricto y es común la infección de dos o más especies en forma conjunta, mientras que H. pylori no lo infecta en forma natural. La detección de especies NHPH en la mucosa del estómago de seres humanos con enfermedad gástrica y en un alto porcentaje de perros, sugiere la posibilidad de que estos animales jueguen un rol importante en la patogenia y transmisión de la infección al hombre, postulándose la vía de transmisión oral-oral o bien fecal-oral. Si bien existen estudios en distintas zonas geográficas del mundo acerca de las especies NHPH, tanto en humanos como en perros, y algunos reportes aislados de casos humanos infectados con NHPH que motivó la búsqueda de estas especies en sus perros, no hay investigaciones que describan un estudio planificado que relacione la presencia de estas especies en un número significativo de humanos y de sus perros. El objetivo de este trabajo fue determinar si las personas con signos de gastritis crónica que tienen Helicobacter spp. y que poseen perros como mascotas, comparten con ellos las mismas especies. Para ello se estudió por PCR la presencia de Helicobacter spp. en muestras gástricas de 30 personas con signos clínicos de gastritis crónica y diagnóstico histopatológico de infección gástrica con Helicobacter spp. También se estudió por histopatología y por PCR la presencia de Helicobacter spp. en los perros de estas personas y luego se determinaron las especies de Helicobacter presentes en ambos. En las muestras gástricas de los humanos la única especie encontrada fue H. pylori, mientras que en las de los perros se encontraron H. bizzozeronii predominantemente, H. felis, H. salomonis y H. heilmannii y en algunos casos varias de estas especies cohabitando el estómago de los perros. En este trabajo no se encontraron las mismas especies en los perros y en sus propietarios.Helicobacter is a Gram-negative bacterial genus that colonizes the stomach of humans and dogs, among other mammals. The species most frequently found in the gastric mucosa of man is H. pylori, implicated in the pathogenesis of chronic gastritis, ulcers and gastric neoplasms, however, there are other species of Helicobacter in the stomach of man, such as H. suis, H. bizzozeronii, H. felis, H. salomonis and H. heilmannii sensu stricto, called non-H. pylori Helicobacter (NHPH). The dog has a very high prevalence of infection of its gastric mucosa with these NHPH species, H. felis, H. bizzozeronii, H. salomonis, H. cynogastricus and H. heilmannii sensu stricto and infection of two or more species together is common, whereas H. pylori does not infect it naturally. The detection of NHPH species in the stomach mucosa of humans with gastric disease and in a high percentage of dogs suggests the possibility that these animals play an important role in the pathogenesis and transmission of the infection to humans, postulating the oral-oral or fecal-oral route of transmission. Although there are studies in different geographical areas of the world about NHPH species in both humans and dogs, and some isolated reports of human cases infected with NHPH that motivated the search for these species in their dogs, there is no research describing a planned study that relates the presence of these species in a significant number of humans and their dogs. The aim of this work was to determine whether people with signs of chronic gastritis who have Helicobacter spp. and who own dogs as pets, share with them the same species. For this purpose, the presence of Helicobacter spp. in gastric samples from 30 people with clinical signs of chronic gastritis and histopathological diagnosis of gastric infection with Helicobacter spp. was studied by PCR. The presence of Helicobacter spp. in the dogs of these people was also studied by histopathology and PCR, and then the Helicobacter species present in both were determined. In the gastric samples from humans the only species found was H. pylori, while in those from dogs H. bizzozeronii predominantly, H. felis, H. salomonis and H. heilmannii were found and in some cases several of these species cohabited the stomach of the dogs. In this work the same species were not found in dogs and their owners.Fil: Guendulain, Corina. Universidad Nacional de Rio Cuarto; Argentina
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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