1,720,957 research outputs found
La Vegetazione arbustiva di un settore costiero dell'adriatico centrale italiano
Full text linkThe shrubby vegetation in a coastal sector of italian central adriatic sea. The results of the phytosociological analysis concerning the shrubby vegetation of a sector of the italian adriatic coast, of around 20 Kms, situated in the Rrgional natural park of Conero, are presented. It deals with mountainous coasts of two main lithomorphological typologies: marly-arenaceous and calcareous formations. On the first formation, in correspondence to marly rocks, the newLonicero etruscae-Cornetum sanguineaeassociation, belonging to theedapho-hygrophilousmeso and submediterranean
pre-apennine series of the elm (Symphyto bulbosi-Ulmeto minoris sigmetum), develops. On the contrary, on sand stones, constituted by superimposed levels and intercalated to marlstones, develops axerophilousvegetation which stops at the maquis stadium, referred to the newCoronillo emeroidis-Rhamnetum alaterniassociation in the newloniceretosum etruscae sub-association. On the calcareous cliffs of the warmest slopes, a maquis vegetation develops, referred to the same association but in the most thermophilous subassociation viburnetosum tini, colonising partially consolidated screes, which represents an element of the mesomediterranean italian-tyrrhenian and amphiadriatic calcicolous series of the holm-oak
(Fraxino orni -Querceto ilicissigmetum). Finally, on the steep slopes of the compact limestones of the warmest sectors of the South-East side of M.
Conero (Valley ofthe Vellare), the new ampelodesmetosum mauritanici sub-association oftheCoronillo emeroidis-Euphorbietum dendroidisassociation
is described. It differentiates from the latter for the presence of more temperate elements and for the loss of some thermomediterranean species
Excursion to the Conero regional natural park
Full text linkThe Regional Natural Park of Conero is situated in
the central-eastern part of the Italian peninsula where it
covers an area of about 6,000 ha (Fig. 1). The protected
area extends in a north-south direction for a distance of
about 20 Km, reaching a maximum width corresponding
to Conero Mountain (about 7 Km) and narrowing
towards its northern extremity.The wide floristic and biocoenotic biodiversity which
characterises the area is determined by its central
position with respect to the basin of the Adriatic Sea,
by the height of the Conero promontory, which with its
height of 572 m greatly surpasses the average of the
Italian Adriatic coast, and by the diversity of the
geological, geomorphological and climatic conditions
of the territory enclosed by the Natural Park (Brilli-Cattarini,
1967; Biondi, 1986).The agricultural, timbering and shepherding activities
that were very developed in the past have contributed
in part to the increase in the biodiversity of the territory,
determining a high diversification of the plant landscape
and favouring the development of ecotonal areas. The
abandonment of the agricultural activities in large areas
that followed, and of the timbering and shepherding
activities in almost all of the territory, has determined
the development of the natural dynamic processes of
the recovery of the vegetation
Analisi geobotaniche integrate per l'elaborazione del Piano di gestione naturalistica del Parco naturale regionale del Conero
Full text linkGeobotanical research, realized to support the elaboration of the Park Naturalistic Plan, is presented. Synphytosociological and geosynphytosociological studies have highlighted the dynamic models of botanical landscape and the soil/plant relationship. The integrated study of the landscape allowed to carry out the Vegetation Map and the Landscape Units Map in which it is possible to identify 6 landscape ecological units, deriving from a whole of vegetation series. The integration of this map with the Soils Map will allow to define some multidimensional landscape units to which correspond sets of ecosystems which are related each other through some mechanism. The knowledge of these mechanism could steer us into a most rational management of the territory
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
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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