1,721,038 research outputs found
Comparative evaluation of antimicrobial activity of green biocides on infected substrata reproducing original materials of Italian tombs
No full textThe hypogeal cultural heritage due to their favourable environmental conditions can be subject to microbial attack usually controlled using biocides. Recently the number of products allowed in the restoration practice has been reduced because, in addition to their effectiveness, the biocidal product should not have effects on the treated surfaces, and it should be safe for the operator and environment. Following this field research, we propose a reconstruction experiment in which we tested 4 different natural products (Clove oil, Oregano Oil, Usnic Acid, IPA+ DMSO + Usnic Acid) on tiles, reproducing the substrate of Etruscan hypogeal tombs (Macco) of Monterozzi Necropolis, inoculated with a selection of fungal/bacterial strains. After one month from the biocide’s application, we evaluated their efficiency by image analysis and by culture analysis. The achieved results evidenced a clear gradient between the four tested biocides and gave suggestions for further improvements
“Il sistema degli spazi aperti e l’Orto botanico diffuso dell’Università degli Studi Roma Tre”
No full textIL SISTEMA DI UNA RETE
PER UN ORTO BOTANICO DIFFUSO
NEL CONTESTO DEGLI SPAZI APERTI DELL’UNIVERSITÀ ROMA TRE A cura (Giulia Caneva, Maria Grazia Cianci, Michele Furnari)
& Note sul I lotto di intervento sull’area delle Torri (pag. 14-18)
Con la collaborazione di: Sveva Corrado per la sezione Geogarden
Il presente studio raccoglie il lavoro svolto dal gruppo interdisciplinare formato tra il Dipartimento di Scienze e il Dipartimento di Architettura con l’obiettivo di attualizzare l’ipotesi del previsto insediamento di un Orto Botanico d’Ateneo nella zona del Valco S. Paolo, affrontando un progetto di sistema degli spazi aperti che da quest’area si potrà estendere ai diversi insediamenti universitari.
L’area di Valco S. Paolo, interessata anche da iniziative di trasformazione promosse da altri attori tra cui lo stesso Comune di Roma, ospita il polo scientifico dell’Ateneo, e in tutte le sedi universitarie mature in cui insistono Facoltà scientifiche di indirizzo biologico-naturalistico si sono create le condizioni per l’istituzione di specifici Orti Botanici, di supporto sia alla ricerca scientifica, che alle problematiche di educazione ambientale. L’area oggetto dell’intervento è fortemente caratterizzata dalla presenza del Tevere che delimita con una larga ansa la zona in questione. Qui il fiume non scorre più tra i “muraglioni” e, benché sempre regimentato, riacquista la dimensione paesaggistica, lasciando a spazio ad un’area golenale più estesa con una caratteristica vegetazione ripariale.
Il valore territoriale e ambientale di questa situazione trova riscontro nell’intenzione di valorizzare il Fiume come asse fondamentale dell’intero settore urbano tramite l’istituzione del Parco Tevere Sud. La realizzazione di un sistema verde nell’ansa del Tevere si presta per diventare un elemento di unione tra il sistema ambientale del fiume con le sue aree golenali da una parte ed il settore urbano Marconi-Ostiense dall’altro. Questo ruolo di soglia o di unione non dovrà fermarsi agli aspetti territoriali ma potrà trovare riscontro anche sul piano culturale programmatico, fornendo un’occasione d’incontro e di comunicazione tra la cittadinanza e l’Ateneo stesso, che dell’integrazione nel territorio ha fatto da sempre uno dei punti di forza della propria politica di insediamento nella città.
Sul piano tematico e scientifico appare opportuno assegnare al nascente sistema del verde una chiara specializzazione dei contenuti, in parte orientati dalla vicinanza del Tevere e la sua importanza ecologica. Oltre alla valenza didattica e scientifica legata alla ricerca e all’insegnamento universitario, gli Orti Botanici assolvono oggi anche una funzione sociale di educazione ambientale e di conservazione della natura, permettendo il mantenimento di quella variabilità genetica, che caratterizza il patrimonio vegetale del nostro pianeta, che è sempre più minacciata dalla crescente urbanizzazione e crescita demografica
Plants used in artisanal fisheries on the Western Mediterranean coasts of Italy
No full textBackground
Artisanal fisheries in the Mediterranean, especially in Italy, have been poorly investigated.There is a long history of fishing in this region, and it remains an important economic activity in many localities. Our research entails both a comprehensive review of the relevant literature and 58 field interviews with practitioners on plants used in fishing activities along the Western Mediterranean Italian coastal regions. The aims were to record traditional knowledge on plants used in fishery in these regions and to define selection criteria for plant species used in artisanal fisheries, considering ecology and intrinsic properties of plants, and to discuss the pattern of diffusion of shared uses in these areas.
Methods
Information was gathered both from a general review of ethnobotanical literature and from original data. A total of 58 semi-structured interviews were carried out in Liguria, Latium, Campania and Sicily (Italy). Information on plant uses related to fisheries were collected and analyzed through a chi-square residual analysis and the correspondence analysis in relation to habitat, life form and chorology.
Results
A total of 60 plants were discussed as being utilized in the fisheries of the Western Italian Mediterranean coastal regions, with 141 different uses mentioned. Of these 141 different uses, 32 are shared among different localities. A multivariate statistical analysis was performed on the entire dataset, resulting in details about specific selection criteria for the different usage categories (plants have different uses that can be classified into 11 main categories). In some uses, species are selected for their features (e.g., woody), or habitat (e.g., riverine), etc. The majority of uses were found to be obsolete (42 %) and interviews show that traditional fishery knowledge is in decline. There are several reasons for this, such as climatic change, costs, reduction of fish stocks, etc.
Conclusions
Our research correlates functional characteristics of the plants used in artisanal fishery and habitats, and discusses the distribution of these uses. This research is the first comprehensive outline of plant role in artisanal fisheries and traditional fishery knowledge in the Mediterranean, specifically in Italy
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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