1,720,955 research outputs found
A ZONING STUDY OF THE VITICULTURAL TERRITORY OF ACOOPERATIVE WINERY IN VALPOLICELLA
No full textThe Valpolicella hilly area, north of Verona, is highly vocated for viticulture but its
vineyards are sometimes characterized by very different soil and microclimate conditions
which can greatly affect their oenological potential. A zoning study promoted by the
Cooperative Winery Valpolicella (Negrar, Verona, Italy) was carried out with the aim of
evaluating the oenological potential of the vineyards of the Winery associated growers. The
final objective is to improve in general the quality of the wines and in particular to increase
the production of premium wines (Amarone and Recioto).
On the basis of the results obtained from 12 reference vineyards spread on a wine territory
of about 500 ha, it was possible to distinguish zones with different performances with regard
to yield and technological quality of the grapes, which in turn was reflected in the quality of
the corresponding wine
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
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
Adjustement of water use efficiency by stomatal regulation during drought and recovery of Verona province grape varieties grafted on two different Vitis hybrid rootstocks.
No full textDrought is considered to be the predominant factor both for determining the geographic distribution of vegetation and for restricting crop yields in agriculture. Furthermore, water stress is a limiting factor for a wide range of plant physiological processes and can have a profound effect on plant metabolism and development. Drought stress can decrease the sensitivity of photosynthesis to subsequent water deficits and similarly reduce the sensitivity of stomata to low atmospheric vapor pressure deficit during the dry season. Grapevine cultivars are known to differ in their drought adaptation mechanisms, but there is little knowledge on how many of them behave during a drought event and after recovering. The aim of this study is to analyze how stomatal conductance is regulated under water stress and recovery, as well as how water stress affects adjustments of water use efficiency in cultivar Corvina, Corvinone and Rondinella grafted on Kober 5BB and 140 Ruggeri rootstocks. The experiment was conducted on 4-year old vines, grown in an experimental field of Valpolicella in Verona province. The effects of water deficit and recovery after rewatering were evaluated by using thermal imaging, a potential tool for estimating plant temperature, which can be used as an indicator of stomatal closure and water deficit stress. The thermal indices were compared with measured stomatal conductance. Results of mid-morning and at noon measurements showed significant difference between cultivars for both stomatal conductance and canopy water stress index. An apparent difference between the cultivars was the highest speed of the recovery noted for Corvinone compared to Corvina and Rondinella. The possible relation between water use differences and production and quality of grapes at harvest are discussed
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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