1,720,957 research outputs found
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
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
The Karst Biosphere Reserve in Slovenia. eco.mont (Journal on Protected Mountain Areas Research)|eco.mont Vol. 11 No.2|
No full textThe UNESCO Man and the Biosphere programme has proven to be a highly efficient tool for the conservation of natural and cultural heritage and an incentive for efforts towards sustainable development at the Karst Biosphere Reserve in Slovenia. Since the Reserve was established in 2003, the Škocjan Caves Park Public Service Agency, as the managing authority, has gradually developed a system that attempts to link the scientific and research sphere to the local community, while actively involving the community in the Biosphere Reserve’s long-term management through education, awareness raising and participatory approaches. Taking into consideration the human dimension in the environment is essential for the preservation and sustainable use of the ecosystem
Vpliv obiskov na mikroklimo jam, rezultati meritev v Škocjanskih jamah
Get PDFTourism activities in caves can result in changes in the microclimates of caves. The natural microclimate in closed caves is constant due to the balance between cave air and cave walls, while in open caves exchanges with outside air influence the microclimate. Visits to caves, especially in closed smaller caves, can thus endanger the natural balance if the microclimate does not return to natural conditions quickly enough.Continuous monitoring of the temperature and concentration of carbon dioxide in Škocjan Caves enables the assessment of the impact of visits. For this purpose, we used data measured in the relatively closed Silent Cave, at the locations named Calvary (Kalvarija), Tent (Šotor), and Passage (Prehod) in 2016, and in the wide open Murmuring Cave, at the locations named Bridge (Most) and Rimstone Pools (Ponvice), in 2013. The outdoor air temperature, as measured at the Škocjan meteorological station on the surface plateau, was considered in both cases. Along the tourist part of Škocjan Caves, the most closed part of the cave in Silent Cave is the location at Calvary, when the entrance doors through an artificially dug tunnel are closed. During the visits, the microclimate is subjected to draughts through open doors and to anthropogenic emissions. The data suggest that the influence of draughts predominates over direct anthropogenic emissions. In winter or on cold days air flows upwards and through the tunnel out of the cave, whereas in summer or on warm days it flows downwards. In such cases, the CO2 concentration decreases markedly due to the downwards chimney effect as the concentration in the outside air is much lower than in the cave. The data show that the temperature overnight and towards morning always returns to its natural value even in this
rather small location in the cave. The changes in CO2 concentration persist for a longer period, until the time of the first visit the next morning, when it is again perturbed by a new visit. The data on time courses support the theoretically estimated characteristic of the exponential decline of disturbances backward towards natural conditions, depending on the size of a cave and on the efficiency of exchanges with its walls. For temperature, this characteristic time tT is about three to six hours at the Calvary site. The return of CO2 to natural conditions tCO2 is longer and its estimate less reliable than the one for temperature. In the wide-open and large Murmuring Cave, the impact of visits is negligible throughout the year. In this part of the cave we can observe the influence of external daily and annual changes, the amplitudes of which get smaller, and their phase lags bigger, deeper in the cave.Turistična dejavnost v jamah lahko spreminja naravno jamsko mikroklimo, ki je v zaprtih jamah nespremenljiva ob ravnovesju med jamskim zrakom in jamskimi stenami. V odprtih jamah so možne izmenjave z zunanjim zrakom. Obiski jam lahko predvsem v zaprtih manjših jamah ogrozijo to ravnovesje, če se mikroklima ne vrne dovolj hitro v naravne razmere. Stalni monitoring temperature in koncentracije ogljikovega dioksida v Škocjanskih jamah omogoča oceno posledic obiskov. Za lokacije v Tihi jami (Kalvarija, Šotor, Prehod) so bili uporabljeni podatki iz leta 2016, za morebitne vplive v Šumeči jami (Most in Ponvice) pa podatki iz leta 2013. V obeh primerih so bili upoštevani tudi podatki za zunanji zrak z meteorološke postaje Škocjan na površju. V turističnem delu Škocjanskih jam je najbolj zaprt del jame lokacija v Tihi jami na Kalvariji, ko so vrata skozi umetno izkopan predor zaprta. Med obiski pa je mikroklima izpostavljena prepihu skozi odprta vrata in antropogenim emisijam. Podatki kažejo, da vpliv prepiha prevladuje nad vplivom neposrednih antropogenih emisij. Pozimi ali v hladnih dneh teče zrak navzgor in skozi predor iz jame, poleti ali v toplih dneh pa teče navzdol. V takih primerih se koncentracija CO2 izrazito zmanjša zaradi navzdolnjega učinka dimnika, saj je koncentracija v zunanjem zraku veliko nižja kot v jami. Podatki kažejo, da se temperatura čez noč in proti jutru vedno vrne na naravno vrednost tudi na tem precej majhnem prostoru v jami. Spremembe koncentracije CO2 trajajo dlje časa – do prvega obiska naslednje jutro, ko ob novem obisku nastane nova motnja. Podatki o časovnih potekih podpirajo teoretično predpostavko o eksponentnem upadu vpliva motenj nazaj proti naravnim razmeram, odvisno od velikosti jame in učinkovitosti izmenjav toplote, CO2, itd. z njenimi stenami. Za temperaturo je na Kalvariji ta značilni čas eksponentnega upada motenj približno od tri do šest ur. Vrnitev CO2 proti naravnim razmeram pa poteka dlje in ocena je manj zanesljiva od tiste za temperaturo. V dokaj odprti in veliki Šumeči jami je vpliv obiska zanemarljiv skozi vse leto. V tem delu jame lahko opazujemo vpliv zunanjih dnevnih in letnih sprememb, katerih amplitude so čedalje globlje v jami vse manjše, njihov fazni zaostanek pa je vse večji
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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