1,720,986 research outputs found
Microbiocenoza porumbeilor sălbatici și celor întreținuți în condiții casnice
Get PDFScopul acestei lucrări științifice a fost izolarea microbiomului la porumbei. Au fost selectați porumbei din diferite regiuni ale Republicii Moldova și au servit drept obiect de cercetare, din care s-au prelevat spălături din cavitatea bucală, din globii oculari ai porumbeilor care aveau boli oculare, precum și mostre de materii fecale. În urma investigațiilor microbiologice, s-a stabilit că microflora izolată de la porumbei era constituită din bacterii din genul: Escherichia, Salmonella, Shigella, Pasteurella, Actinomyces, Listeria, Streptococcus și Staphylococcus, ciuperci din genul Aspergillus, Pencillium și unele drojdii, printre care Candida spp. La porumbeii sănătoși clinic prezența microflorei condițional patogene a fost stabilită în probele prelevate din cavitatea bucală. La porumbeii suspectați de afecțiuni respiratorii și gastrointestinale, cei mai mari indici ai prezenței coloniilor bacteriene și fungice au fost stabiliți în probele prelevate din fecale. Metodele microbiologice clasice au fost utilizate în identificarea diferitelor tipuri de bacterii și ciuperci: metode de bacterioscopie și bacteriologie. În metoda bacteriologică s-au folosit medii de cultură precum agar nutrient, bulion pepton, mediu Endo, Levin, agar bismut sulfit și mediu Sabouraud
Modificări microscopice/histopatologice în peritonita infecțiosă felină (PIF)
Get PDFCercetarea are drept scop examinarea necropsică macroscopică și histopatologică a cadavrelor și organelor, cu recoltarea și prelucrarea probelor provenite de la pisici suspecte/diagnosticate cu peritonită infecțioasă felină
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
Histological modifications in lungs under the effect of vaccines H-120 and MA5+CLON30 against avian infectious bronchitis
No full textThe study material represents histological modifications in lung tissue of chickens vaccinated with vaccines strains “H-120” and “Ma5+ Clon30”. It was established that live attenuated vaccines strains, against avian infectious bronchitis, didn’t cause significant changes in lung tissue. These changes were manifested by changes in the pulmonary stromal cells, as well as by high levels of specific antibody titers in the blood serum and by lymphoid accumulations in the submucosa of bronchi. As a result there were detected certain changes in lungs showing a sensitivity of chickens to vaccine
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
Quantitative parameters of the immune complexes of chicken vaccinated against infectious bronchitis
No full textThe article includes the serological investigation about maternal and post vaccination values of immune complexes against bronchitis diseases virus. For vaccination were used “H-120” strains and “Ma5+Clon30” strains, administrated by spray, aerosol and with drinking water methods separate and in combination with the hidroalcoholic solution of pollen. The values of immune complexes were established in reaction of precipitation. On result was established that the chickens which was vaccinated with vaccine strain “H-120” and “Ma5+Clon 30” separately had lower values of immune complexes comparative with values of immune complexes of chicken which was vaccinated with vaccine strain “H-120” and “Ma5+Clon30” in combination with the hidroalcoholic solution of polle
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
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