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MOLECULAR IDENTIFICATION OF PUFFER FISH LAGOCEPHALUS SCELERATUS (GMELIN, 1789) AND LAGOCEPHALUS SPADICEUS (RICHARDSON, 1845) FROM EASTERN MEDITERRANEAN, TURKEY
No full textThe Mediterranean Sea is home to numerous invasive marine species. The Suez Canal is considered as the major route of migrating Indo-Pacific species known as Lessepsian species, from the Red Sea into the Mediterranean. One of those species Lagocephalus sceleratus and Lagocephalus spadiceus has serious impact on the ecosystem, fisheries and human health within a decade. DNA based methods are frequently preferred and reliable techniques in species identification studies. The 16S rRNA genes and cytochrome b genes are relatively conserved mitochondrial genes, used for this purpose. 16S rRNA gene primers and cytochrome b gene specific pirmers were used to identify Turkish L. sceleratus and L. spadiceus specimens from Gokova Bay via PCR analysis. Obtained gene sequence deposited in GenBank databse. Consequently, it was obtained that cytochrome b gene sequence is more useful than 16S rRNA gene region for identification of L. spadiceus samples while both gene region give reasonable results for L. sceleratus species.United Nations Development Programme (UNDP) under Small Grants Programme (SGP) [TUR/SGP/OP5/STAR/BD/13/02]This work was supported by the United Nations Development Programme (UNDP) under Small Grants Programme (SGP) number TUR/SGP/OP5/STAR/BD/13/0
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
Exogenous Polyamine Treatment Prevents UV-A Induced Cellular Damage and Photoinhibition of Photosystem II in Lichen Physcia semipinnata (J. F. Gmel.) Moberg
Get PDFIn this study the protection ability of polyamines on Photosystem II (PSII), the proline content of the cellsand necrosis formation induced by Ultraviolet-A irradiation were studied. Although 24 h Ultraviolet-Aexposure decreased the photosynthetic quantum yield (Fv/Fm) ratio in Physcia semipinnata (J. F. Gmel.)Moberg, thalli that treated with 1 mM polyamine, especially spermidine and spermine, were slightlyinfluenced by the UV-A exposure. It was also found that spd and spm treated samples had lower prolinecontent than putrescine (put)-treated samples. Moreover, It was found that the samples that were treatedwith spd and spm had lower percentage of DNA damage than put-treated samples and non-treated groups.In this study, Ultraviolet-A induced DNA damage detected by acridine orange/ethidium bromide stainingassay. The DNA damage in thalli of P. semipinnata was detected in situ in phycobiont layer after 24 h ofUltraviolet-A exposure, in contrast, polyamine-treated samples had a lower rate of necrotic cells
Association of Prototheca species and protothecosis in man and animals
No full textPrototheca is an aerobic, achlorophilic and unicellular organism with ovoid shape; it is often confused with yeasts. Prototheca cells are fairly common in a variety of enviroments such as sewage, freshwater, soil, rotting leaves, faeces, skin and various mammals (deer, cat, dog, cattle and humans). Prototheca species are widespread in housing areas, pens and pastures used by dairy cattle and can cause mastitis in dairy cattle. Protothecosis is an uncommon infection of humans and animals. Most infections are clinical and remain as chronic infections. Five species of Prototheca have been identified: P. moriformas, P. stagnora, P. ulmea, P. wickerhamii, P. zopfii; only the last two of these cause infection in humans and animals. Little is known about the ecology of Prototheca. Failure to isolate Prototheca spp. may be explained by the fact that they are readly over-grown by bacteria and fungi when culture is attemped from contaminated sources, as well as the fact that they superficially resemble yeasts. For this reason a specific culture media has been developed for Prototheca spp. (c) 2006 Lippincott Williams & Wilkins
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
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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