1,720,956 research outputs found
Il Progetto EST (Educare alla Scienza ed alla Tecnologia) all’Orto Botanico G.E. Ghirardi di Toscolano Maderno (BS)
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
Ethnobotanical study in Valchiavenna (Northern Italy)
Valchiavenna (Sondrio, Italy) is an alpine area of Northern Italy characterized by a great variety of landscapes due to climatic conditions, altitude range, side exposure and soil morphology. All these features have produced a biodiversity with many autochthonous plant species. Inhabitants
of the valley still collect plants to use as cure for some ailments. The aim of this study, carried out for the first time in this area, was to gather information about folk remedies before they are completely lost and to enlarge the medicinal plant collections of the local Botanical Garden.
Fieldwork was carried out in different time intervals during the period 2008-2009. Information was collected using semi-structured ethnobotanical interviews and the data were analyzed using quantitative indexes: ethnobotanicity index, ethnophytonomic index, index of saliency and
informant consensus factor. The use of several species was documented by speaking with farmers, shepherds, housewives and impassioned botanists, mostly over 60 years old. The highlights were: Cetraria islandica (L.) Ach. (decoction) for bronchitis of bovines in veterinary medicine and as antitussive (infusion) for human health; Veratrum album L. (leaves decoction)
as antibacterial agent; Artemisia absinthium L. (dried leaves) as moth-repellent; other Artemisia species (for example, A. genipi Weber) were mentioned to prepare liqueurs; honey of Taraxacum officinale Weber as food preparation. The results showed a reduction in the ethnobotanical knowledge, whose transmission from the old to the new generation is declining.
Many species are not much known by villagers, particularly by young people, most of them preferring the orthodox medicine
Variations on the Author
“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
We 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
Traditional knowledge on medicinal and food plants used in Val San Giacomo (Sondrio, Italy)- An alpine ethnobotanical study
Ethnopharmacological relevance: This work increases the ethnobotanical data from Northern Italy and, in particular, the Lombardy region, till now poorly documented, safeguarding the local folk knowledge, and provides information on new or scarcely reported properties of medicinal plants, whose traditional use needs to be validated experimentally. Aim of the study: The present study aimed to gather, analyse and evaluate the ethnobotanical information on the species used for medicinal and food purposes by the native people of Val San Giacomo. Materials and methods: The plant use was documented by speaking with more than 100 people, mainly over 60 years old, born and resident in Val San Giacomo. Information was collected using semi-structured interviews and then analysed by indices such as Ethnophytonomic Index (EPI), Ethnobotanicity Index (EI), relative frequency of citation (RFC), use value (UV), relative importance (RI) and factor informant consensus (FIC). Results: Information on 66 plants belonging to 35 families (Asteraceae, Rosaceae and Lamiaceae, mainly) was gathered. The preference ranking placed Achillea moschata Wulfen at first place, both for the citation number and for RFC and UV. Arnica montana L.; Thymus pulegioides L. and Artemisia genipi Stechm. were also in relevant use. Sixty species were wild and six were cultivated. Leaves, flowers, complete aerial parts and fruits were the plant parts most commonly used for remedy preparation (infusion, especially). The interviewees collected local flora for medicinal purposes, specifically. About 51.5% of the plant species were used to treat gastrointestinal tract of humans as digestive, depurative, appetiser, laxative, astringent and carminative remedies. About 56% of the plants were used in cookery, 24.2% in veterinary field, and 3% as cosmetics. The calculated indices demonstrated that in the studied area there is a small retention of plant knowledge. Only 6.2% of the autochthonous plants proved useful in folk tradition. Despite this, the uses of Sempervivum montanum L.; Rhododendron ferrugineum L. and Panicum miliaceum L. were never documented by other ethnobotanical investigations conducted in the alpine area. Conclusions: This survey was an extension of the ethnobotanical investigations performed in the Italian Alps. A study like this, though performed in a small area with a reduced traditional knowledge, could be the basis for subsequent research on the species that are interesting from a phytochemical point of view and on the potential use of their active metabolites
Dispelling the Myths Behind First-author Citation Counts
We 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
We 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
- …
