1,721,118 research outputs found
Il complesso sabiniano di San Pietro a Canosa
No full textIl contributo sintetizza gli esiti di cinque anni di scavo archeologico nel sito di San Pietro a Canosa di Puglia, ritenuto, fino al momento dell’impostazione delle ricerche, sede del primo polo episcopale del capoluogo della provincia tardoantica di Apulia et Calabria. Le indagini svolte tra il 2001 e il 2005 hanno portato alla luce un complesso religioso monumentale, imperniato intorno ad una basilica trinave, ornata da pavimenti musivi policromi, preceduta da un nartece e da un ampio cortile porticato, costruita con mattoni contrassegnati da monogrammi del vescovo Sabino, in cui va ravvisato il committente dell’opera; alla volontà dello stesso vescovo si deve la costruzione del piccolo mausoleo absidato, fatto erigere in collegamento con il portico antistante la chiesa, per la propria sepoltura. Il complesso si componeva inoltre di un edificio residenziale e di servizio, affiancato alla basilica, di un altra fabbrica absidata (forse originariamente di rappresentanza, in seguito convertita a spazio funerario), poco distante, e di una domus, collocata sul margine meridionale dell’insediamento, forse da interpretare come residenza vescovile. Il nucleo religioso ospitò al suo interno un vasto e articolato cimitero, che conobbe maggiore impulso in seguito alla morte del vescovo. Gli scavi hanno consentito di appurare che S. Pietro non era sede della cattedrale canosina, ma piuttosto un complesso sacro fondato da Sabino che probabilmente svolse un ruolo complementare a quello esercitato dal polo episcopale, ospitando sia la residenza del vescovo, sia il mausoleo che avrebbe accolto il suo sepolcro. Nell’Altomedioevo le strutture andarono deteriorandosi; cessata la funzione religiosa, gli organismi sacri furono oggetto di recupero e riutilizzo a fini abitativi; tale nuova modalità insediativa non si prolungò oltre il X-inizi dell’XI sec., momento cui va ascritto l’abbandono definitivo dell’area. Il contributo, che pur fa seguito all’edizione di relazioni preliminari degli scavi, presenta per la prima volta una sintesi complessiva dei risultati delle ricerche, con una lettura delle architetture e delle funzioni dei singoli monumenti e dell’insediamento nel suo complesso che hanno portato a riscrivere su nuove basi la topografia cristiana della città canosina, superando le letture tradizionali e formulando nuovi modelli interpretativi
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
Shape memory alloys for earthquake building protection
No full textUse of Shape Memory Alloys (SMA) is more and more frequent in engineering because of their unique properties of completely recovering the imposed deformations after heating, or automatically returning to the unloaded configuration via a super-elastic process after very large strains (till around 10%). The process is regulated by a phase change in the material, shifting between martensite and austenite. Along this transformation, some SMA change their elastic properties by a factor three and damping coefficient by a magnitude. Super-elastic materials exhibit stable hysteresis loops under cyclic loading and dissipate energy without residual deformation thus providing in perspective self-centering capability for use in buildings earthquake protection. The present study investigates the performance of SMA-based devices for seismic protection of reinforced concrete structures. In countries with high seismic hazard, vulnerability assessment of existing constructions and seismic retrofit implementation is a major challenge for both scientific community and public administration. This paper illustrates seismic retrofit of an existing school building in Italy, using dissipating steel braces. Both SMA-wire dampers and mixed devices combining SMA elements and classical buckling-restrained axial dampers are considered for seismic upgrading. Adopted technique effectiveness and reliability are investigated by comprehensive nonlinear static and dynamic analyses. Numerical results show that super-elastic SMA dampers are effective for mitigating building response to strong earthquakes and providing systems self-centering capability with negligible residual strains
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
Enriching the Mediterranean diet could nourish the brain more effectively
Full text linkThe increasing prevalence of neurodegenerative disorders represents a challenge to the global health of all nations and populations, particularly with increasing longevity. Urgent prevention strategies are therefore needed, and one opportunity may be to explore the relationship between dietary patterns and brain health which has emerged as a promising strategy. Numerous studies indicate that dietary choices have a significant impact on cognitive function, memory and the risks of neurological disorders, recognizing the dynamic role of diet in maintaining cognitive abilities. One of the most studied dietary styles, the Mediterranean diet, characterized by healthy, plant-based foods fats and moderate consumption of animal products, has demonstrated its neuroprotective potential. Rich in antioxidants, vitamins and polyphenols, this diet shows consistent associations with cardiovascular health and cognitive function. Some less talked about foods, such as seaweed, blackcurrants, Lion's Mane mushroom and chia seeds, are emerging as potential brain health boosters. These and other new foods could enrich the Western diet making it capable of effectively preventing neurological disorders. Despite promising scientific data, difficulties persist in understanding the complex relationship between nutrition and brain health. Individual variability, long-term dietary adherence, comorbidities, and the need for rigorous clinical evidence pose obstacles. In this review, we would like to focus our attention on the future of brain-diets, which should involve accessible, personalized and evidence-based interventions, providing hope against the challenges posed by neurodegenerative diseases. In fact, as research progresses, more and more attention are being placed to brain health, promising a harmonious and resilient cognitive landscape for individuals and society
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