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Search Results: 1 - 10 of 167758 matches for " E. Fiorini "
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Dal castrum altomedievale al restauro settecentesco: storia e archeologia del castello di Sorrivoli (Roncofreddo - FC)
Fiorini, Andrea
Arqueología de la Arquitectura , 2011,
Abstract: The methods and tools used to determine the history of construction and building techniques of the castle of Sorrivoli (Roncofreddo - FC) are here described. This is a research project carried out within a study coordinated by the teaching of Medieval Archaeology (University of Bologna), which has the purpose of conducting a census of all the medieval castles in Romagna. There is certain news from the tenth century concerning the castle to be studied. However, the investigations have shown that the standing preserved structures must be dated from the fourteenth century onwards. The system of photogrammetric survey of the walls and the technique of threedimensional modelling of the structures are here described. An extended part of this paper is also devoted to results of stratigraphic, typological, geological, metrological and comparative mensio-cronological analysis. No disponible
Three-dimensional recording in the archaeological excavation at the Bronze Age settlement of Mursia, Pantelleria. LA DOCUMENTAZIONE TRIDIMENSIONALE DELLO SCAVO ARCHEOLOGICO NELL’ABITATO DELL’ETà DEL BRONZO DI MURSIA, PANTELLERIA (TP)
Andrea Fiorini
IpoTESI di Preistoria , 2010,
Abstract: The purpose of this paper is to describe methods of documentation and detection techniques used on the archaeological site of Mursia (Pantelleria, TP) in order to build three-dimensional models of a hut and a stone mortar. The software measures three-dimensional coordinates of a finite set of points on the object using two photographs taken from different positions (stereo pairs). In particular, we explore some technical aspects of data processing like quickness, measurement accuracy, information content of record and equipments cost. In questo contributo si descrivono i metodi e gli strumenti di rilievo impiegati nel sito archeologico di Mursia (Pantelleria – TP) per ottenere i modelli tridimensionali di una capanna e di un mortaio litico. Il software misura sull’oggetto le coordinate tridimensionali di un set finito di punti utilizzando due foto riprese da posizioni differenti (“stereocoppia”). Si approfondiscono, in particolare, alcuni aspetti di questa tecnica di rilievo: la rapidità (del procedimento), l’accuratezza (della misura), il contenuto informativo (della registrazione) e il costo (degli strumenti).
Nonsingular Promises from Born-Infeld Gravity
Franco Fiorini
Physics , 2013,
Abstract: Born-Infeld determinantal gravity formulated in Weitzenbock spacetime is discussed in the context of Friedmann-Robertson-Walker (FRW) cosmologies. It is shown how the standard model big bang singularity is absent in certain spatially flat FRW spacetimes, where the high energy regime is characterized by a de Sitter inflationary stage of geometrical character, i.e., without the presence of the inflaton field. This taming of the initial singularity is also achieved for some spatially curved FRW manifolds where the singularity is replaced by a de Sitter stage or a big bounce of the scale factor depending on certain combinations of free parameters appearing in the action. Unlike other Born-Infeld-like theories in vogue, the one here presented is also capable of deforming vacuum general relativistic solutions.
Top-Quark Physics Results From LHC
Luca Fiorini
Physics , 2012,
Abstract: The top-quark is a fundamental element of the physics program at the Large Hadron Collider (LHC). We review the current status of the top-quark measurements performed by ATLAS and CMS experiments in pp collisions at sqrt(s)=7 TeV by presenting the recent results of the top-quark production rates, top mass measurements and additional top quark properties. We will also describe the recent searches for physics beyond the Standard Model in the top-quark sector.
Efeitos clínicos e microbiológicos do óleo de copaíba (Copaifera officinalis) sobre bactérias formadoras de placa dental em c?es
Pieri, F.A.;Mussi, M.C.;Fiorini, J.E.;Schneedorf, J.M.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2010, DOI: 10.1590/S0102-09352010000300012
Abstract: the copaiba oil (copaifera officinalis) potential was evaluated in preventing periodontal disease and reducing its etiology. for that 18 mongrel dogs were homogeneously distributed in three groups: test (copaiba oil), positive control (chlorexidine) and negative control. the treatments were carried out three times a day, during eight days. on the 9th day, the animals were tested with a 0.5% basic solution of fuchsin for the detection of biofilm. changes in halitosis and gingivitis were daily observed. in addition, the following laboratory tests were done: inhibition of the adherence of streptococcus mutans, and plaque forming bacteria antimicrobial assays by the agar diffusion method. the results of the fuchsin test showed that dental plaque reached areas of 53.4±8.8%, 28.5±5.4%, and 22.3±5.3% in the negative control, positive control, and test groups, respectively, showing differences between dogs from the negative control group and dogs from the other two groups (p<0.05). furthermore, halitosis and gingivitis decreased in the copaiba group animals when compared with the negative group (p<0.05). the results of the attachment inhibition and agar diffusion tests showed that copaiba induced better effects against the microorganisms as compared to the results of the other groups (p<0.05). these findings suggest that copaiba oil may effectively replace chlorexidine for oral antimicrobial therapy and prevention of periodontal disease.
A note on the Cops & Robber game on graphs embedded in non-orientable surfaces
Nancy E. Clarke,Samuel Fiorini,Gwena?l Joret,Dirk Oliver Theis
Mathematics , 2008, DOI: 10.1007/s00373-012-1246-z
Abstract: The Cops and Robber game is played on undirected finite graphs. A number of cops and one robber are positioned on vertices and take turns in sliding along edges. The cops win if they can catch the robber. The minimum number of cops needed to win on a graph is called its cop number. It is known that the cop number of a graph embedded on a surface $X$ of genus $g$ is at most $3g/2 + 3$, if $X$ is orientable (Schroeder 2004), and at most $2g+1$, otherwise (Nowakowski & Schroeder 1997). We improve the bounds for non-orientable surfaces by reduction to the orientable case using covering spaces. As corollaries, using Schroeder's results, we obtain the following: the maximum cop number of graphs embeddable in the projective plane is 3; the cop number of graphs embeddable in the Klein Bottle is at most 4, and an upper bound is $3g/2 + 3/2$ for all other $g$.
Três novas espécies de tripanosomatídeos de insetos isolados em Alfenas, Minas Gerais, Brasil
Fiorini, Jo?o Evangelista;Silva, Paulo Márcio de Faria e;Soares, Maurílio José;Brazil, Reginaldo Pe?anha;
Memórias do Instituto Oswaldo Cruz , 1989, DOI: 10.1590/S0074-02761989000100013
Abstract: three new species of trypanosomatids were isolated from two species of flies: herpetomonas anglusteri n. ap., from liopygia ruficomis (diptera: sarcophagidae); crithidia roitmani n. sp. and crithidia desouzai n. s.p., from ornidia obesa (diptera: syrphidae). all were axenically cultivated in both complex and defined media and cloned. giemsa stained preparations showed typical choanomastigotes for crithidia and promastigotes, paramastigotes, and opisthomastigotes for herpetomonas. h. anglusteri did grow in a complex medium at 28 and 37oc, but in a defiend mkedium only at 28oc. c. roitmani does not grow in coconut's water but c. desouzai grow. both crithidia do not require hemin, adenine, and any vitamins and amino acids of the defined medium used in the assay, which suggests that these trypanosomatids may bear endosymbionts.
Secretion of Epstein-Barr Virus-encoded BARF1 oncoprotein from latently infected B cells
Sylvie Fiorini, Tadamasa Ooka
Virology Journal , 2008, DOI: 10.1186/1743-422x-5-70
Abstract: Epstein-Barr virus (EBV) is tightly associated with divers human cancers, in particular nasopharyngeal and gastric carcinomas, lymphoma induced in Aids patient, Hodgkin's lymphoma and endemic Burkitt's lymphoma [1]. EBV immortalises primary simian and human B-lymphocytes [1,2] as well as epithelial cells in vitro [3,4]. EBV infection is latent in B cells and classified in three types: Type I, Type II and Type III. Type I is common to lymphomas and express very limited viral protein, mainly EBNA1, EBERs and BARF0. Type II express EBNA1, LMP1, EBERS, BARF0 and LMP2. Type III express several viral proteins like EBV-encoded nuclear antigens (EBNA1, EBNA2, EBNA3A, 3B and 3C), LMP1, LMP2A, LMP2B, BARF0 and EBERs [5]. Nasopharyngeal carcinoma belongs to Type II. Primary epithelial cells immortalized in vitro by EBV expressed EBNA1, EBERs, LMP2A and BARF1[3,4,6], thus belong to type II infection except for the absence of LMP1 expression.Among about 90 genes encoded by EBV genome, two oncogenes, LMP1 and BARF1, are known to induce a malignant transformation in established rodent fibroblasts [7,8]. BARF1 was considered so far as an early gene. However among the viral lytic proteins, only BARF1 was expressed consistently and at high levels in NPC [9-11] and also in EBV-associated GC carcinoma as well as in EBV-immortalized epithelial cells in vitro [3,6,12]. In these cells, the expression of LMP1 and lytic genes was negative. BARF1 expression was also detected in B lymphoma frequent in Malawi [13] and in nasal NK/T-cell lymphoma [14]. Its expression is therefore not limited to epithelial cells, but also in B cells.BARF1 has a malignant transforming activity in rodent fibroblasts and in human EBV-negative B cells [8,15]. Its transforming and Bcl2 activating domain was demonstrated between 21st to 56th amino acid sequences by deletion mutants [15]. BARF1 has also immortalizing activity on primary primate epithelial cells [16]. Secreted BARF1 protein (called p29) purified from 29
Digital storytelling teaching robotics basics
Michele Scandola,Paolo Fiorini
Themes in Science and Technology Education , 2013,
Abstract: Digital Storytelling (DST) is a powerful tool for teaching complex concepts. DSTs are typically used in the humanities but several papers have shown that they are also a wonderful tool for the sciences because they are more involving, contextualized and can easily lead to deeper understanding. In the classical use of DST the story is thecontent, while the digital medium is the way of telling it. Our approach is slightly different: the story is not the content but a glue for the main contents, while the digital medium remains the way to tell the story. We propose the use of DST as a means to teach surgeons the basics of robotic surgery, by using a story that should be involving forthem, i.e. a surgical operation, within which we will illustrate specific concepts onrobotics in surgery.
Ensino de física e deficiência visual
Maria Luiza Salzani Fiorini
Revista Brasileira de Educa??o Especial , 2009, DOI: 10.1590/s1413-65382009000100013
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