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253. The late-pleistocene industries of Piauí, Brazil: New data

Author

Boëda, E., Lourdeau, A., Lahaye, C., Felice, G. D., Viana, S., Clemente-Conte, I., Mario Pino, Fontugne, M., Hoeltz, S., Guidon, N., Pessis, A. -M, Da Costa, A., Pagli, M., Archéologies et Sciences de l'Antiquité (ArScAn), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Anthropologie des techniques, des espaces et des territoires au Pliocène et au Pléistocène (AnTET), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Universidade Federal de Pernambuco [Recife] (UFPE), Institut de Recherches sur les Archéomatériaux (IRAMAT), Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne (UBM)-Centre National de la Recherche Scientifique (CNRS), IRAMAT-Centre de recherche en physique appliquée à l’archéologie (IRAMAT-CRP2A), Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne (UBM)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne (UBM)-Centre National de la Recherche Scientifique (CNRS), Fundaçao Museu do Homem Americano (FUMDHAM), Pontificia Universidade Catolica de Goias (Instituto Goiano de Pré-Historia e Antropologia,), Departamento de Arqueologıa y Antropologıa (IMF CSIC), Consejo Superior de Investigaciones Cientıficas (IMF-CSIC), Facultad de Ciencias, Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Géochrononologie Traceurs Archéométrie (GEOTRAC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Pontifical Catholic University of Rio Grande do Sul (PUC-RS), Ministère de la Culture (MC), Kelly Graf, Caroline Ketron, Michael Waters, Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne-Centre National de la Recherche Scientifique (CNRS), and Université, Bordeaux Montaigne

Subjects
Technology, Piauí, [SHS.ARCHEO] Humanities and Social Sciences/Archaeology and Prehistory, [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, Late Pleistocene, Artifact, Pléistocène, ComputingMilieux_MISCELLANEOUS, Brazil
Abstract

The Serra da Capivara region is under continuing investigation over the past 30 years. In recent years, in the context of a specific research on Pleistocene human settlements, many surveys and digging were undertaken. The results are convincing as we currently certify more than five Pleistocene sequences with archaeological material and OSL and 14C dating. We present in this article three of them. Vale da Pedra Furada and Tira Peia have each delivered a chronological sequence of several layers that witness production of diversified tools with evidence of use. Sitio do Meio is a site already known for its sequence in the late Pleistocene/ early Holocene. The continuing research indicates a greater sequence beginning in the late Pleistocene with many artifacts. All evidence seems to confirm a late-Pleistocene human presence in this region of Brazil. This occupation continued throughout the Holocene, with changes in cultural assemblages that display local differences and increasingly sophisticated methods of adapting to and modifying the landscape.

256. Mu2e Run I Sensitivity Projections for the Neutrinoless $\mu^- \to e^-$ Conversion Search in Aluminum

Author

Abdi, F., Abrams, R., Adentunji, J., Ahmed, W., Alber, R., Alexander, D., Allen, D., Allspach, D., Alvarez-Garcia, C., Ambrose, D., Ambrosio, G., Amirkhanov, A., Andreev, N., Ankenbrandt, C. M., Appleby, R., Arnold, D., Artikov, A., Atanov, N., Badgley, K., Ball, M., Baranov, V., Barker, J., Barnes, E., Barton, B., Bartoszek, L., Bellettini, G., Bernstein, R. H., Bersani, A., Bianchi, I., Biery, K., Bini, S., Blazey, G., Bloise, C., Boedigheimer, K., Boi, S., Bolton, T., Bono, J., Bonventre, R., Borghi, S., Borrel, L., Bossert, R., Bowcock, T., Bowden, M., Brandt, J., Breach, M., Brown, D., Brown, D. N., Brown, G., Brown, H., Budagov, I., Buelher, M., Bulugean, G. -M, Byrum, K., Campbell, M., Cao, H., Carey, R. M., Caron, J. F., Casey, B., Casler, H., Cervelli, F., Cheban, S., Chen, J., Chen, M., Cheng, C. -H, Chislett, R., Chitirasreemadam, N., Chokheli, D., Ciampa, K., Ciolini, R., Coghill, J., Colao, F., Coleman, R. N., Corrodi, S., Crescimbeni, L., Crowley, C., Culbertson, R., Cummings, M. A. C., Daniel, A., Davydov, Y., Demers, S., Deshpande, A., Devilbiss, M., Dey, J., Felice, G., Gouvea, A., Dhanraj, J., Ding, D., Dinnon, M., Diociaiuti, E., Dixon, S., Di Falco, S., Djilkibaev, R., Donati, S., Drake, G., Drendel, B., Duerling, G., Dukes, E. C., Dychkant, A., Echenard, B., Eddy, N., Edmonds, A., Ehrlich, R., Ekka, U., Evans, R., Evbota, D., Fabbricatore, P., Fagan, J., Farinon, S., Farrell, W., Farris, P., Feher, S., Fellenz, B., Fernandez, E., Ferrari, A., Ferrari, C., Finley, J., Flood, K., Flumerfelt, E., Fontana, F., Francis, K., Frand, M., Frank, M., Friedsam, H., Gallo, G., Gandrajula, R. P., Gaponenko, A., Gardner, M., Gargiulo, R., Gaugel, S., Genser, K. L., Gersabeck, M., Ginther, G., Gioiosa, A., Giovannella, S., Giusti, V., Glagolev, V., Glass, H., Glenzinski, D. A., Goadhouse, S., Goodenough, L., Grancagnolo, F., Gray, P., Group, C., Hahn, A., Hampai, D., Hansen, S., Happacher, F., Harkness-Brennan, L., Harrig, K., Hartsell, B., Hays, S., Hedges, M., Hedin, D., Heller, K., Herman, A., Hirsh, S., Hitlin, D. G., Hocker, A., Hooper, R., Horton-Smith, G., Huang, S., Huedem, E., Huffman, D., Hung, P. Q., Hungerford, E., Ibrahim, A., Israel, S., Jenkins, M., Johnstone, C., Jones, M., Jorjadze, V., Judson, D., Kampa, C., Kargiantoulakis, M., Kashikhin, V., Kasper, P., Keshavarzi, A., Khalatian, V., Kim, J. -H, Kiper, T., Knapp, D., Knodel, O., Knoepfel, K., Kokosa, L., Kolomensky, Yu G., Koltick, D., Kozlovsky, M., Kozminski, J., Kracczyk, G., Kramp, M., Krave, S., Krempetz, K., Kutschke, R. K., Kwarciany, R., Lackowski, T., Lamm, M. J., Lancaster, M., Larwill, M., Leavell, F., Lee, M. J., Leeb, D., Lema-Sinchi, J., Leveling, T., Lewis, R., Ley, A., Li, B., Li, Y., Lin, D., Lincoln, D., Logashenko, I., Lombardo, V., Lopes, M. L., Luca, A., Lynch, K. R., Mackenzie, M., Makulski, A., Manolis, J., Maravin, Yu, Marciano, W. J., Marini, A., Martin, E., Martinez, A., Martini, M., Mcarthur, D., Mcconologue, F., Mesmer, N., Messerly, B., Michelotti, L., Middleton, S., Miles, C., Miller, J. P., Nguyen, T. M., Miscetti, S., Mitchell, D., Miyashita, T., Mokhov, N., Molenaar, D., Molzon, W., Moore, J., Morescalchi, L., Morgan, J., Mott, J., Motuk, E., Mueller, S., Mukherjee, A., Murat, P., Musenich, R., Nagaslaev, V., Narayanan, A., Neely, R., Neuffer, D. V., Nguyen, M. T., Nicol, T., Niehoff, J., Nogiec, J., Norman, A., Northrup, K., O, V., Oh, S., Oksuzian, Yu, Olderr, P., Olson, M., Orris, D., Oshinowo, B., Ostojic, R., Oyang, J., Paesani, D., Pagan, S., Page, T., Palladino, A., Park, C., Pasciuto, D., Pedreschi, E., Peterson, T., Pezzullo, G., Pilipenko, R., Pla-Dalmau, A., Plesniak, P., Pohlman, N., Pollack, B., Poloubotko, V., Popovic, M., Popp, J. L., Frank C. Porter, Prebys, E. J., Price, J., Prieto, P., Pronskikh, V., Pushka, D., Quirk, J., Rabehl, R., Rachamin, R., Raffaelli, F., Ragheb, A., Rakness, G., Ray, R. E., Rechenmacher, R., Rivera, R., Rizzo, G., Roberts, B. L., Roberts, S., Roberts, T. J., Robotham, W., Roehrken, M., Rubinov, P., Rucinski, R., Rusu, V. L., Samavat, M. F., Sanzani, E., Saputi, A., Sarra, I., Sarychev, M., Scarpine, V., Schappert, W., Schmitt, M., Schmitter, P., Schoo, D., Schumacher, K., Shi, X., Singh, V., Sobering, T., Soleti, R., Solt, M., Song, H., Song, E., Spinella, F., Srivastav, M., Stefanik, A., Stetzler, S., Still, D., Stortini, M., Stratakis, D., Strauss, T., Sun, Y., Suslov, I., Syphers, M. J., Szemraj, L., Ta, J., Taffara, A., Tang, Z., Tanovic, N., Tartaglia, M., Tassielli, G., Taylor, R., Tecchio, M., Tickle, S., Tinsley, D., Tope, T., Torkelson, A., Tran, N., Trevor, J., Tschirhart, R. S., Turnberg, S., Uzunyan, S., Varier, D., Velasco, M., Vinas, L., Vitali, B., Vogel, G., Wagner, R., Wands, R., Wang, Y., Wang, C., Wang, M., Wardlaw, I., Warren, M., Werkema, S., White, Jr H. B., 11, J., Whitmore, J., Wielgos, R., Wildberger, R., Wills, L., Winter, P., Woods, R., Worel, C., Wu, Y., Xia, L., You, Z., Yucel, M., Zadeh, P., Zanetti, A. M., Zhadan, D., Zhu, R. -Y, Zifko, R., and Zutshi, V.

260. Il Viaggio di Goethe in Italia

Author

Abatino, E., Artemisio, L., Benfatto, S., Bertacchini, M., Bonanno, R., Bondesan, A., Caloi, V., Carabetta, M. T., Carveni, P., Cazzoli, M. A., Chiesa, S., Cirinà, V., Coratza, P., de Rita, D., Felice, G., Germani, C., Gregori, Lucilia, Lipartiti, M. T., Luongo, G., Lugeri, F., Macaione, E., Maccarone, B., Messina, A., Montana, G., Nicchitta, D., Panizza, M., Pecci, M., Regolini Bissing, G., Rossetto, T., Salleo Puntillo, M., Testa, B., Torre, F., and Torre, R.

Subjects
geomorfologia, Goethe, geoturismo, enografia

263. Use of the stable isotope 65Cu test for the screening of Wilson's disease in a family with two affected members

Author

Merli, M., Patriarca, M., Loudianos, G., Valente, C., Oliviero Riggio, Di Felice, G., Petrucci, F., Caroli, S., and Attili, A. F.

Subjects
Adult, Male, Adolescent, wilson's disease, 65cu test, stable isotope, DNA, Middle Aged, Mass Spectrometry, Hepatolenticular Degeneration, Isotopes, Child, Preschool, Humans, Female, Copper
Abstract

An improved method for the study of copper metabolism in Wilson's disease, using a stable, rather than radioactive, copper isotope (65Cu) has recently been described. We report on the use of this method for the study of a family with two members affected by Wilson's disease.The family comprised parents and four siblings: one 20-year-old male and three females, aged 22, 17 and 5 years, respectively. The boy and the 17-year-old girl both presented with liver cirrhosis. Diagnosis of Wilson's disease was suggested by elevated liver copper content and/or low caeruloplasmin levels and Kayser-Fleischer ring.All family members were given an oral dose of 3 mg of 65Cu. Blood samples were taken at 0, 1, 2, 6, 24, 48, and 72 hours. In 4 subjects, additional blood samples were drawn at 7, 14 and 21 days after dosage. The ratio 65Cu:63Cu in serum was determined in all samples by means of Inductively Coupled Plasma Mass Spectrometry.The diagnosis of Wilson's disease was confirmed in the two symptomatic members by the unequivocal decrease observed in the 65Cu percent enrichment, which approached zero by 72 hours. In contrast, Wilson's disease could be definitely excluded in both siblings, one of whom only 5 years old, on the evidence of net secondary peaks, showing normal incorporation of 65Cu into caeruloplasmin. These findings were later confirmed by genetic analysis. Parents, who carried defective genes with different mutations, also showed different abnormalities of copper metabolism.The oral test with the stable copper isotope 65Cu is a safe, non invasive option able to exclude Wilson's disease in patients with a difficult diagnosis or in a presymptomatic stage. However, positive tests must still be confirmed by copper dosage in liver biopsies, as heterozygotes can present with severe alterations of copper metabolism, without developing symptoms of the disease. The use of this test in conjunction with genetic analysis on a larger number of heterozygous subjects may add to the understanding of the Wilson's disease defect.

265. An overview of the design approach to strengthen existing reinforced concrete structures with SRG

Author

CHRISTIAN CARLONI, Ascione, F., Camata, G., Felice, G., Santis, S., Lamberti, M., Napoli, A., Realfonzo, R., Santandrea, M., Stievanin, E., Cescatti, E., Valluzzi, M. R., AAVV, Carloni, Christian, Ascione, Francesco, Camata, Guido, DE FELICE, Gianmarco, DE SANTIS, Stefano, Lamberti, Marco, Napoli, Annalisa, Realfonzo, Roberto, Santandrea, Mattia, Stievanin, Elena, Cescatti, Elvi, and Rosa Valluzzi, Maria

Subjects
concrete, composites, strengthening, SRG, Strengthening, Building and Construction, SRG, Composites, Concrete, Civil and Structural Engineering
Abstract

The civil engineering community is acquainted with the fact that existing reinforced concrete structures require constant maintenance in order to increase their service life. Nevertheless, maintenance might be not sufficient when a change of use, which entails for an increase of the service loads, damage due to aggressive environment, or the need of withstanding natural and man-made hazards were not taken into account when the structure was designed. Fiber-reinforced composites are a suitable tool to strengthen and thus increase the capacity of the structural element without changing the original configuration and adding mass. Steel reinforced grout (SRG) is a relatively new tool in the realm of fiber-reinforced composites that consists of steel fibers embedded in a cementitious mortar. This paper presents a state-of-the art on SRG that includes a literature review and points out the effectiveness of SRG for flexural strengthening and confinement of concrete members. It also proposes a design approach to strengthen reinforced concrete beams based on the available data on flexural tests on beams, bond tests on SRG-concrete joints, and tensile tests on SRG coupons.

266. A diagrammatic axiomatisation of fermionic quantum circuits

Author

Amar Hadzihasanovic, Felice, G., and Ng, K. F.

Subjects
000 Computer science, knowledge, general works, Computer Science
Abstract

We introduce the fermionic ZW calculus, a string-diagrammatic language for fermionic quantum computing (FQC). After defining a fermionic circuit model, we present the basic components of the calculus, together with their interpretation, and show how the main physical gates of interest in FQC can be represented in the language. We then list our axioms, and derive some additional equations. We prove that the axioms provide a complete equational axiomatisation of the monoidal category whose objects are quantum systems of finitely many local fermionic modes, with operations that preserve or reverse the parity (number of particles mod 2) of states, and the tensor product, corresponding to the composition of two systems, as monoidal product. We achieve this through a procedure that rewrites any diagram in a normal form. We conclude by showing, as an example, how the statistics of a fermionic Mach-Zehnder interferometer can be calculated in the diagrammatic language.

274. Un polype biceps pédiculé du côlon.

Author

Felice, G. and Barbazza, R.

Abstract

Copyright of Acta Endoscopica is the property of Lavoisier and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
1983
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275. Abstracts of the 26th World Congress on Ultrasound in Obstetrics and Gynecology, Rome, Italy, 24-28 September 2016.

Author

Sansone, A., De Felice, G., Pellicano, M., Cuomo, L., Di Carlo, C., and Exacoustos, C.

Subjects
*ENDOMETRIOSIS, *OVARIAN diseases, *TRANSVAGINAL ultrasonography, *DIAGNOSIS
Abstract

An abstract of the article "Ultrasonographic evaluation of the effects of dienogest on volume and features of ovarian endometriomas," by A. Sansone and colleagues is presented.

Published
2016
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277. Laparoscopic repair of full-thickness stomach injury.

Author

Spinelli, Pasquale, Felice, Gianfranco, Pizzetti, Paolo, Oriana, Rosario, Spinelli, P, Di Felice, G, Pizzetti, P, and Oriana, R

Abstract

A case of laparoscopic repair of gastric perforation caused by a trocar is reported. Suturing was carried out by the apposition of clips. The potential advantages of this approach are that the treatment is performed at the time of the complication, the duration of the operation is reduced, and the discharge of the patient from hospital is accelerated. [ABSTRACT FROM AUTHOR]

Published
1991
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282. A numerical procedure for the simulation of skin–stringer debonding growth in stiffened composite panels.

Author

Riccio, A., Raimondo, A., Di Felice, G., and Scaramuzzino, F.

Subjects
*COMPOSITE materials bonding, *STIFFNESS (Mechanics), *NUMERICAL analysis, *CRACK propagation (Fracture mechanics), *CANTILEVERS
Abstract

In this paper, a numerical study on the skin–stringer debonding growth in composite panels under compressive load is presented. A novel numerical procedure, for the selection of proper material parameters governing the traction–separation law in Cohesive Zone Model (CZM) based elements, is introduced and demonstrated. Indeed, the proposed procedure uses Virtual Crack Closure Technique (VCCT) based FEM analyses on Double Cantilever Beam (DCB) and End Notched Flexure (ENF) specimen to characterize the traction–separation law, respectively, for fracture mode I and mode II. The established traction–separation laws are then applied to composite structures containing inter-laminar damages modeled by cohesive elements. To validate the proposed approach, a single stringer panel under compression with an artificial debonding between skin and stringer, has been considered. The numerical results, in terms of displacements and debonding size as a function of applied compressive load, have been compared to experimental data available in literature providing a good numerical–experimental correlation. [ABSTRACT FROM AUTHOR]

Published
2014
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283. Modelling the simulation of impact induced damage onset and evolution in composites.

Author

Riccio, A., De Luca, A., Di Felice, G., and Caputo, F.

Subjects
*FRACTURE mechanics, *SIMULATION methods & models, *COMPOSITE plates, *DELAMINATION of composite materials, *STRUCTURAL failures, *COMPARATIVE studies
Abstract

This paper presents two modelling strategies for the simulation of low velocity impact induced damage onset and evolution in composite plates. Both the strategies use a global–local technique to refine the mesh in the impact zone in order to increase the accuracy in predicting the impact phenomena without affecting the computational cost. Cohesive elements are used to simulate the inter-lamina damage behaviour (delaminations) and Hashin's failure criteria are adopted to predict the intra-lamina failure mechanisms. The two modelling strategies differ in terms of input parameters for the inter-lamina and intra-lamina damage evolution laws and in terms of modelling solutions in the impacted area. Comparisons between numerical and experimental results on composite plates subjected to different impact energies, according to the ASTM D7136 requirements, have been used to assess the peculiarities and the fields of application for the two proposed modelling strategies. Both the strategies have been tested by adopting the finite element code ABAQUS®. The different approaches to set the parameters of cohesive elements' constitutive laws and Hashin's criteria and the different choices made in quantifying the dependence of failure criteria on the finite elements' average size have been taken into account. [ABSTRACT FROM AUTHOR]

Published
2014
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286. Tunnelling-induced deformation and damage on historical masonry structures.

Author

AMOROSI, A., BOLDINI, D., DE FELICE, G., MALENA, M., and SEBASTIANELLI, M.

Subjects
*SOIL structure, *DEFORMATION of surfaces, *MASONRY, *NUMERICAL analysis, *FINITE element method, *ANISOTROPY
Abstract

The analysis of deformation and damage mechanisms induced by shallow tunnelling on masonry structures is carried out using an integrated, geotechnical and structural, numerical approach based on two-dimensional finite-element analyses. The masonry construction, schematised as a block structure with periodic texture, is regarded at a macroscopic scale as a homogenised anisotropic medium. The overall mechanical properties display anisotropy and singularities in the yield surface, arising from the discrete nature of the block structure and the geometrical arrangement of the blocks. The soil is modelled by means of a linear elastic-perfectly plastic model. The numerical analyses are performed assuming plane strain and plane stress conditions for the soil and the masonry structure, respectively. A displacement-controlled technique is adopted to simulate the tunnel construction, which produces settlement troughs in agreement with the empirical Gaussian predictions at different volume losses under free-field conditions. In order to test the numerical approach, a preliminary set of parametric analyses is carried out considering a simple masonry wall, characterised by different geometrical and mechanical properties, founded on a clayey deposit. Then, the case study of the Felice aqueduct in Rome (Italy), undercrossed by two tunnels of a new metro line, is considered. Significant differences are observed between the uncoupled analysis, where displacements predicted under free-field conditions are simply applied at the foundation level of the structure, and the interaction-based one, the latter being characterised by a reduced amount of tensile plastic strain. Numerical results in terms of vertical displacements at the ground level and on the structure are found to be in good agreement with monitoring data, thus validating the numerical model for this class of soil-structure interaction problems. [ABSTRACT FROM AUTHOR]

Published
2014
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287. Consensus statement of the Italian society of pediatric allergy and immunology for the pragmatic management of children and adolescents with allergic or immunological diseases during the COVID-19 pandemic

Author

Fabio Cardinale, Giorgio Ciprandi, Salvatore Barberi, Roberto Bernardini, Carlo Caffarelli, Mauro Calvani, Giovanni Cavagni, Elena Galli, Domenico Minasi, Michele Miraglia Del Giudice, Viviana Moschese, Elio Novembre, Francesco Paravati, Diego G Peroni, Maria Angela Tosca, Giovanni Traina, Salvatore Tripodi, Gian Luigi Marseglia, Doriana Amato, Caterina Anania, Elisa Anastasio, Rachele Antignani, Stefania Arasi, Martire Baldassarre, Ermanno Baldo, Andrea Barbalace, Simona Barni, Federica Betti, Annamaria Bianchi, Ezio Bolzacchini, Maira Bonini, Paolo Bottau, Sara Bozzetto, Maria Antonia Brighetti, Davide Caimmi, Silvia Caimmi, Luigi Calzone, Caterina Cancrini, Lucia Caminiti, Giulia Capata, Lucetta Capra, Carlo Capristo, Elena Carboni, Francesco Carella, Riccardo Castagnoli, Elena Chiappini, Fernanda Chiera, Iolanda Chinellato, Loredana Chini, Francesca Cipriani, Flavio Civitelli, Pasquale Comberiati, Daniele Contini, Stefania Corrente, Claudio Cravidi, Giuseppe Crisafulli, Barbara Cuomo, Enza D'Auria, Sofia D'Elios, Fabio Decimo, Auro Della Giustina, Rosa Maria Delle Piane, Maria De Filippo, Valentina De Vittori, Lucia Diaferio, Maria Elisa Di Cicco, Dora Di Mauro, Marzia Duse, Silvia Federici, Giuseppe Felice, Maria Grazia Fenu, Giuliana Ferrante, Tiziana Foti, Fabrizio Franceschini, Daniele Ghiglioni, Giuliana Giardino, Mattia Giovannini, Giovanni Cosimo Indirli, Cristiana Indolfi, Massimo Landi, Francesco La Torre, Lucia Maddalena Leone, Amelia Licari, Lucia Liotti, Vassilios Lougaris, Nunzia Maiello, Paride Mantecca, Sara Manti, Marco Maria Mariani, Alberto Martelli, Carla Mastrorilli, Violetta Mastrorilli, Davide Montin, Francesca Mori, Roberta Olcese, Giorgio Ottaviano, Claudia Paglialunga, Giovanni Pajno, Giuseppe Parisi, Stefano Pattini, Luca Pecoraro, Umberto Pelosi, Claudio Pignata, Giampaolo Ricci, Silvia Ricci, Stefano Rizzi, Caterina Rizzo, Sara Rosati, Paolo Rosso, Maria Sangerardi, Angelica Santoro, Francesca Saretta, Lucrezia Sarti, Marco Sartorio, Majla Sgruletti, Annarosa Soresina, Ifigenia Sfika, Mayla Sgrulletti, Nuccia Tesse, Valentina Tranchino, Alessandro Travaglini, Malizia Velia, Elvira Verduci, Mario Vernich, Elisabetta Veronelli, Stefano Volpi, Martina Votto, Anna Maria Zicari, Cardinale, F., Ciprandi, G., Barberi, S., Bernardini, R., Caffarelli, C., Calvani, M., Cavagni, G., Galli, E., Minasi, D., Del Giudice, M. M., Moschese, V., Novembre, E., Paravati, F., Peroni, D. G., Tosca, M. A., Traina, G., Tripodi, S., Marseglia, G. L., Amato, D., Anania, C., Anastasio, E., Antignani, R., Arasi, S., Baldassarre, M., Baldo, E., Barbalace, A., Barni, S., Betti, F., Bianchi, A., Bolzacchini, E., Bonini, M., Bottau, P., Bozzetto, S., Brighetti, M. A., Caimmi, D., Caimmi, S., Calzone, L., Cancrini, C., Caminiti, L., Capata, G., Capra, L., Capristo, C., Carboni, E., Carella, F., Castagnoli, R., Chiappini, E., Chiera, F., Chinellato, I., Chini, L., Cipriani, F., Civitelli, F., Comberiati, P., Contini, D., Corrente, S., Cravidi, C., Crisafulli, G., Cuomo, B., D'Auria, E., D'Elios, S., Decimo, F., Giustina, A. D., Piane, R. M. D., De Filippo, M., De Vittori, V., Diaferio, L., Di Mauro, M. E., Duse, M., Federici, S., Felice, G., Fenu, G., Ferrante, G., Foti, T., Franceschini, F., Ghiglioni, D., Giardino, G., Giovannini, M., Indirli, G. C., Indolfi, C., Landi, M., La Torre, F., Leone, L. M., Licari, A., Liotti, L., Lougaris, V., Maiello, N., Mantecca, P., Manti, S., Mariani, M. M., Martelli, A., Mastrorilli, C., Mastrorilli, V., Montin, D., Mori, F., Olcese, R., Ottaviano, G., Paglialunga, C., Pajno, G., Parisi, G., Pattini, S., Pecoraro, L., Pelosi, U., Pignata, C., Ricci, G., Ricci, S., Rizzi, S., Rizzo, C., Rosati, S., Rosso, P., Sangerardi, M., Santoro, A., Saretta, F., Sarti, L., Sartorio, M., Sgruletti, M., Soresina, A., Sfika, I., Sgrulletti, M., Tesse, N., Tranchino, V., Travaglini, A., Velia, M., Verduci, E., Vernich, M., Veronelli, E., Volpi, S., Votto, M., Zicari, A. M., Cardinale, Fabio, Ciprandi, Giorgio, Barberi, Salvatore, Bernardini, Roberto, Caffarelli, Carlo, Calvani, Mauro, Cavagni, Giovanni, Galli, Elena, Minasi, Domenico, Del Giudice, Michele Miraglia, Moschese, Viviana, Novembre, Elio, Paravati, Francesco, Peroni, Diego G, Tosca, Maria Angela, Traina, Giovanni, Tripodi, Salvatore, Marseglia, Gian Luigi, SIAIP task force Pignata, Claudio, Cardinale, F, Ciprandi, G, Barberi, S, Bernardini, R, Caffarelli, C, Calvani, M, Cavagni, G, Galli, E, Minasi, D, Del Giudice, M, Moschese, V, Novembre, E, Paravati, F, Peroni, D, Tosca, M, Traina, G, Tripodi, S, Marseglia, G, Amato, D, Anania, C, Anastasio, E, Antignani, R, Arasi, S, Baldassarre, M, Baldo, E, Barbalace, A, Barni, S, Betti, F, Bianchi, A, Bolzacchini, E, Bonini, M, Bottau, P, Bozzetto, S, Brighetti, M, Caimmi, D, Caimmi, S, Calzone, L, Cancrini, C, Caminiti, L, Capata, G, Capra, L, Capristo, C, Carboni, E, Carella, F, Castagnoli, R, Chiappini, E, Chiera, F, Chinellato, I, Chini, L, Cipriani, F, Civitelli, F, Comberiati, P, Contini, D, Corrente, S, Cravidi, C, Crisafulli, G, Cuomo, B, D'Auria, E, D'Elios, S, Decimo, F, Giustina, A, Piane, R, De Filippo, M, De Vittori, V, Diaferio, L, Di Mauro, M, Duse, M, Federici, S, Felice, G, Fenu, G, Ferrante, G, Foti, T, Franceschini, F, Ghiglioni, D, Giardino, G, Giovannini, M, Indirli, G, Indolfi, C, Landi, M, La Torre, F, Leone, L, Licari, A, Liotti, L, Lougaris, V, Maiello, N, Mantecca, P, Manti, S, Mariani, M, Martelli, A, Mastrorilli, C, Mastrorilli, V, Montin, D, Mori, F, Olcese, R, Ottaviano, G, Paglialunga, C, Pajno, G, Parisi, G, Pattini, S, Pecoraro, L, Pelosi, U, Pignata, C, Ricci, G, Ricci, S, Rizzi, S, Rizzo, C, Rosati, S, Rosso, P, Sangerardi, M, Santoro, A, Saretta, F, Sarti, L, Sartorio, M, Sgruletti, M, Soresina, A, Sfika, I, Sgrulletti, M, Tesse, N, Tranchino, V, Travaglini, A, Velia, M, Verduci, E, Vernich, M, Veronelli, E, Volpi, S, Votto, M, Zicari, A, and Fabio Cardinale, Giorgio Ciprandi, Salvatore Barberi, Roberto Bernardini, Carlo Caffarelli, Mauro Calvani, Giovanni Cavagni, Elena Galli, Domenico Minasi, Michele Miraglia Del Giudice, Viviana Moschese, Elio Novembre, Francesco Paravati, Diego G Peroni, Maria Angela Tosca, Giovanni Traina, Salvatore Tripodi, Gian Luigi Marseglia, Doriana Amato, Caterina Anania, Elisa Anastasio, Rachele Antignani, Stefania Arasi, Martire Baldassarre, Ermanno Baldo, Andrea Barbalace, Simona Barni, Federica Betti, Annamaria Bianchi, Ezio Bolzacchini, Maira Bonini, Paolo Bottau, Sara Bozzetto, Maria Antonia Brighetti, Davide Caimmi, Silvia Caimmi, Luigi Calzone, Caterina Cancrini, Lucia Caminiti, Giulia Capata, Lucetta Capra, Carlo Capristo, Elena Carboni, Francesco Carella, Riccardo Castagnoli, Elena Chiappini, Fernanda Chiera, Iolanda Chinellato, Loredana Chini, Francesca Cipriani, Flavio Civitelli, Pasquale Comberiati, Daniele Contini, Stefania Corrente, Claudio Cravidi, Giuseppe Crisafulli, Barbara Cuomo, Enza D'Auria, Sofia D'Elios, Fabio Decimo, Auro Della Giustina, Rosa Maria Delle Piane, Maria De Filippo, Valentina De Vittori, Lucia Diaferio, Maria Elisa Di Cicco, Dora Di Mauro, Marzia Duse, Silvia Federici, Giuseppe Felice, Maria Grazia Fenu, Giuliana Ferrante, Tiziana Foti, Fabrizio Franceschini, Daniele Ghiglioni, Giuliana Giardino, Mattia Giovannini, Giovanni Cosimo Indirli, Cristiana Indolfi, Massimo Landi, Francesco La Torre, Lucia Maddalena Leone, Amelia Licari, Lucia Liotti, Vassilios Lougaris, Nunzia Maiello, Paride Mantecca, Sara Manti, Marco Maria Mariani, Alberto Martelli, Carla Mastrorilli, Violetta Mastrorilli, Davide Montin, Francesca Mori, Roberta Olcese, Giorgio Ottaviano, Claudia Paglialunga, Giovanni Pajno, Giuseppe Parisi, Stefano Pattini, Luca Pecoraro, Umberto Pelosi, Claudio Pignata, Giampaolo Ricci, Silvia Ricci, Stefano Rizzi, Caterina Rizzo, Sara Rosati, Paolo Rosso, Maria Sangerardi, Angelica Santoro, Francesca Saretta, Lucrezia Sarti, Marco Sartorio, Majla Sgruletti, Annarosa Soresina, Ifigenia Sfika, Mayla Sgrulletti, Nuccia Tesse, Valentina Tranchino, Alessandro Travaglini, Malizia Velia, Elvira Verduci, Mario Vernich, Elisabetta Veronelli, Stefano Volpi, Martina Votto, Anna Maria Zicari

Subjects
Allergy, Review, 030207 dermatology & venereal diseases, Settore MED/38 - Pediatria Generale E Specialistica, 0302 clinical medicine, COVID-19, Child, Pandemic, Immunologic disease, Asthma, Adolescent, Viral, 030212 general & internal medicine, Disease management (health), Societies, Medical, pandemic, child, adolescent, allergy, asthma, immunologic disease, Incidence (epidemiology), lcsh:RJ1-570, Disease Management, General Medicine, Atopic dermatitis, Settore MED/38, Coronavirus Infections, Decision Making, Humans, Italy, Pneumonia, Viral, Pragmatic Clinical Trials as Topic, SARS-CoV-2, Allergy and Immunology, Betacoronavirus, Consensus, Pandemics, Latex allergy, Human, Telemedicine, Consensu, 03 medical and health sciences, Medical, medicine, Risk factor, Betacoronaviru, business.industry, Coronavirus Infection, lcsh:Pediatrics, Pneumonia, medicine.disease, Immunology, Societies, business, Rare disease
Abstract

The COVID-19 pandemic has surprised the entire population. The world has had to face an unprecedented pandemic. Only, Spanish flu had similar disastrous consequences. As a result, drastic measures (lockdown) have been adopted worldwide. Healthcare service has been overwhelmed by the extraordinary influx of patients, often requiring high intensity of care. Mortality has been associated with severe comorbidities, including chronic diseases. Patients with frailty were, therefore, the victim of the SARS-COV-2 infection. Allergy and asthma are the most prevalent chronic disorders in children and adolescents, so they need careful attention and, if necessary, an adaptation of their regular treatment plans. Fortunately, at present, young people are less suffering from COVID-19, both as incidence and severity. However, any age, including infancy, could be affected by the pandemic.Based on this background, the Italian Society of Pediatric Allergy and Immunology has felt it necessary to provide a Consensus Statement. This expert panel consensus document offers a rationale to help guide decision-making in the management of children and adolescents with allergic or immunologic diseases.

Published
2020

288. Bond behaviour of multi-ply steel reinforced grout composites.

Author

Thermou, G.E., De Santis, S., de Felice, G., Alotaibi, S., Roscini, F., Hajirasouliha, I., and Guadagnini, M.

Subjects
*MORTAR, *GROUTING, *STEEL, *BOND strengths, *DIGITAL image correlation, *COMPRESSIVE strength
Abstract

• The bond behaviour of multi-ply steel reinforced grout composites was investigated. • A minimum splice length of 100-200mm is recommended for SRG systems. • The full strength of low density steel textiles can be developed through short laps. • The performance of high density spliced textiles is limited to less than 40%. • The performance of multi-ply SRG is limited by the mortar/concrete bond strength. This paper presents an experimental investigation on Steel Reinforced Grout (SRG) systems comprising multiple layers of galvanized UHTSS textiles, with either 4 or 8 cords/in density, embedded within a geopolymer mortar. Lap-splice tests and single-lap bond tests were performed to develop an improved understanding of the textile-to-textile load transfer capacity and of the SRG-to-concrete substrate bond behaviour. The effects of number of textile plies, cord density and compressive strength of concrete on the bond behaviour are analysed. [ABSTRACT FROM AUTHOR]

Published
2021
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289. Three-Dimensional Numerical Modelling of Historical Masonry Structures Affected by Tunnelling-Induced Settlements

Author

Angelo Amorosi, G. de Felice, Marialaura Malena, W. G. Lasciarrea, Daniela Boldini, Amorosi, A., Boldini, D., de Felice, G., Lasciarrea, W. G., Malena, M., Aguilar R., Torrealva D., Moreira S., Pando M.A., Ramos L.F., and Amorosi A., Boldini D., de Felice G., Lasciarrea W.G., Malena M.

Subjects
business.industry, 3d analysis, Constitutive equation, Structure (category theory), Jointed Masonry model, Structural engineering, Masonry, Domain (software engineering), Masonry structures, Numerical modelling, Shallow tunnelling, Soil-structure interaction, Civil and Structural Engineering, Building and Construction, Mechanics of Materials, Soil-structure interaction, Shallow tunnelling, Masonry structures, Numerical modelling, Jointed Masonry model, Soil structure interaction, Interaction problem, business, Masonry structure, Quantum tunnelling, Geology
Abstract

This paper focuses on the interaction between tunnelling and historical masonry structures. These latter often characterise the centre of many cities and should be preserved from possible tunnelling-induced damage. In recent years the Authors of this contribution have adopted an advanced numerical approach to investigate this issue in the two-dimensional domain, schematising the block masonry structure as a homogenised anisotropic medium [1, 2]. This study extends the approach to three-dimensional conditions. The behaviour of masonry is described by a modified version of the Jointed Rock model, named hereafter as Jointed Masonry model, an anisotropic elastic perfectly plastic constitutive model implemented in the code Plaxis 3D. This model takes into account the directional properties of the medium, identifying the orientation of three planes along which the Mohr-Coulomb yield criterion applies. The paper first briefly describes how the original Jointed Rock model was modified to more realistically account for some specific features of the nonlinear mechanics of masonry. This is followed by the 3D analysis of a tunnelling-structure interaction problem, aimed at highlighting the key features of the proposed masonry model.

Published
2019

290. Nanoparticle–allergen complexes for allergen immunotherapy

Author

Di Felice G and Colombo P

Subjects
Allergy, Nanocarriers, Immunotoxicity, Immune modulation, Medicine (General), R5-920
Abstract

Gabriella Di Felice,1 Paolo Colombo2 1National Center for Drug Research and Evaluation, Istituto Superiore di Sanità, Rome, 2Institute of Biomedicine and Molecular Immunology, National Research Council, Palermo, Italy Abstract: Allergen-specific immunotherapy was introduced in clinical settings more than 100 years ago. It remains the only curative approach to treating allergic disorders that ameliorates symptoms, reduces medication costs, and blocks the onset of new sensitizations. Despite this clinical evidence and knowledge of some immunological mechanisms, there remain some open questions regarding the safety and efficacy of this treatment. This suggests the need for novel therapeutic approaches that attempt to reduce the dose and frequency of treatment administration, improving patient compliance, and reducing costs. In this context, the use of novel adjuvants has been proposed and, in recent years, biomedical applications using nanoparticles have been exploited in the attempt to find formulations with improved stability, bioavailability, favorable biodistribution profiles, and the capability of targeting specific cell populations. In this article, we review some of the most relevant regulatory aspects and challenges concerning nanoparticle-based formulations with immunomodulatory potential, their related immunosafety issues, and the nature of the nanoparticles most widely employed in the allergy field. Furthermore, we report in vitro and in vivo data published using allergen/nanoparticle systems, discuss their impact on the immune system in terms of immunomodulatory activity and the reduction of side effects, and show that this strategy is a novel and promising tool for the development of allergy vaccines. Keywords: allergy, nanocarriers, immunotoxicity, immune modulation, immunotherapy, allergens

Published
2017

291. Seismic behaviour of rubble masonry: Shake table test and numerical modelling

Author

Gianmarco Felice, Domenico Liberatore, Stefano De Santis, Francesca Gobbin, Ivan Roselli, Marialuigia Sangirardi, Omar AlShawa, Luigi Sorrentino, de Felice, G., Liberatore, D., De Santis, S., Gobbin, F., Roselli, I., Sangirardi, M., Alshawa, O., and Sorrentino, L.

Subjects
motion camera tracking, experimental test, fragmentation, Earth and Planetary Sciences (miscellaneous), DEM modelling, FEM-DEM modelling, out-of-plane behaviour, Geotechnical Engineering and Engineering Geology
Abstract

The destruction of Amatrice and the surrounding villages in Central Italy after the 2016 seismic sequence was so impressive that engineers, authorities and local communities started sharing the common feeling that historical stone masonry buildings were too below current safety standards. The severe damage caused by the earthquakes led to a general distrust of traditional building techniques, leading to the conclusion that there is nothing to do but demolish and rebuild, perhaps with a false antique. Is there an alternative? Is there a way to combine safety and preservation of architectural heritage? This paper aims contributing to the understanding of the seismic behaviour of stone masonry by reproducing, through simulation on a shake table, the progressive loss of compactness of a real scale rubble masonry wall up to the ruinous collapse with the separation between the two external leaves. The laboratory simulation allowed to evaluate the decrease of the fundamental frequency with increasing damage and estimate the maximum displacement profile and the amount of cracking that the wall is able to sustain before failing. Eventually, two modelling strategies based on finite and discrete element methods were proposed and applied to verify the capability of simulating the out-of-plane seismic response and the failure mechanisms of rubble masonry.

Published
2022
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293. Analytical and numerical modeling of composite-to-brick bond

Author

G. de Felice, Claudio Mazzotti, Ernesto Grande, Marialaura Malena, Maria Rosa Valluzzi, Francesco Saverio Murgo, Francesca Ceroni, Elio Sacco, Ceroni F., de Felice G., Grande E., Malena M., Mazzotti C., Murgo F., Sacco E., Valluzzi M.R., Ceroni, F, DE FELICE, Gianmarco, Grande, E, Malena, Marialaura, Mazzotti, C, Murgo, F, Sacco, E, Valluzzi, M. R., Ceroni, F., de Felice, G., Grande, E., Malena, M., Mazzotti, C., Murgo, F., and Sacco, E.

Subjects
Materials science, Population, FEM analysis, Composite, SRP, Bond, Brick, Composites, FEM, FRP, Masonry, Modeling, composites, Displacement (vector), Masonry – FRP – SRP – Composites – Modeling – FEM – Bond – Bric, Brittleness, General Materials Science, Reinforcement, education, Civil and Structural Engineering, education.field_of_study, business.industry, bond, brick, masonry, modeling, Building and Construction, Structural engineering, Finite element method, Mechanics of Materials, Solid mechanics, Round robin test, business
Abstract

In masonry components strengthened with externally bonded composites, good bonding is one of the most important aspects governing structural behavior, since failure usually takes place with detachment between reinforcement and substrate. This type of event is a brittle, sudden and therefore undesirable failure mechanism; nor does it allow the full strength of the reinforcement to be exploited. Many experimental data on bonding have recently become available from a Round Robin Test carried out within the framework of RILEM TC-223. In the present paper, experimental tests were simulated at increasing levels of complexity; bond behavior was first studied with an analytical model based on bi- linear representation of bond law. Two-dimensional and three-dimensional finite element analyses were then performed, according to various bond-slip laws. In particular, a number of bi-linear and non-linear interface laws were used, calibrated according to several strategies but with the same experimental population. Lastly, several commercial codes and types of finite elements were examined. This work may be said to represent a numerical Round Robin Test, with various simulations and modeling approaches. Analytical and numerical results are compared with experimental ones, in terms of both overall behavior (load to displacement curve) and local behavior (strain profiles on reinforcements at increasing load values), showing the importance of both types of information in order to obtain reliable predictions of experimental results.

Published
2014

294. Distinct element modelling of the seismic response of historical masonry constructions: insight on the out-of-plane collapse of façades

Author

P. Meriggi, S. De Santis, R. Fugger, R. Yanez Chura, G. de Felice, AAVV, Meriggi, P, Fugger, R, Gobbin, F, De Santis, S, and de Felice, G.

Abstract

Façades belonging to historical masonry constructions typically fail by out-of-plane mechanisms. The estimate of their out-of-plane capacity is not a trivial task, due to the different possible collapse modes (overturning, bending, disaggregation, leaf separation, sliding) and to the discontinuous nature of masonry, influencing the non-linear seismic behaviour of walls. Simplified approaches, proposed by building codes, mainly based on the mechanics of the rigid block, may not always be suitable for the purpose. Indeed, they disregard the real morphology of masonry, which instead influences weaker failure mechanisms (such as disaggregation and leaf separation). Furthermore, they neglect the interaction of the façade with the rest of the building and its interlocking with transversal walls. These shortcomings can be overcome resorting to distinct element method (DEM), in which masonry is modelled as an aggregation of discrete units and no-thickness interfaces and the actual morphology of constructions is considered. In this paper, DEM is adopted to investigate the out-of-plane seismic behaviour of façades through non-linear analyses, by focusing on vertical bending and overturning failure mechanisms. The former is studied by comparing results of shake table tests on both single-leaf and double-leaf masonry walls to dynamic simulations in which real accelerograms are applied. The latter is analysed by performing non-linear static analyses on the Romanesque church of St. Maria Maggiore in Tuscania, Italy, by focusing on its façade. Distinct element method provided a realistic description of the behaviour of façades under earthquake loadings, in terms of both seismic capacity, crack pattern and failure mode.

Published
2022

298. A Discrete Element Model for Masonry Vaults Strengthened with Externally Bonded Reinforcement

Author

José V. Lemos, Gianmarco de Felice, Francesca Gobbin, Gobbin, F, de Felice, G, and Lemos, Jv

Subjects
Buttress, Visual Arts and Performing Arts, business.industry, textile reinforced mortar, 0211 other engineering and technologies, numerical modelling, 020101 civil engineering, vaults, 02 engineering and technology, Conservation, Structural engineering, Masonry, Discrete element method, 0201 civil engineering, masonry, Steel Reinforced Grout, strengthening, 021105 building & construction, Architecture, Discrete element model, Discrete Element Method, Arch, business, Reinforcement, Geology
Abstract

The paper investigates the effectiveness of two-dimensional Discrete Element Method as a tool for structural analysis of arches provided with buttresses and backfill and strengthened with externally bonded reinforcement. Masonry vault and buttresses are modelled as an assembly of 2D rigid blocks interacting through non-linear contact joints, the backfill is discretized into deformable elastic-plastic triangular elements, while the reinforcement is modelled by means of truss elements bonded to the substrate through non-linear springs. A parametric analysis on the influence of material parameters and the effect of the discretization of the backfill is carried out, and the outcome of different reinforcement systems, consisting of Steel Reinforced Grout applied either at the intrados or at the extrados, are analysed. The comparison with experimental full-scale tests proved the ability of the numerical approach to capture hinges position, load bearing capability, as well as the increase in deflection and load capacity provided by the reinforcement.

Published
2020
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299. Durability of Stainless-Steel Reinforced Grout Against Salt Attack

Author

Sara Fares, Rebecca Fugger, Stefano de Santis, Gianmarco de Felice, AAVV, Fares, S., Fugger, R., De Santis, S., and de Felice, G.

Subjects
Substitute ocean water, Mechanics of Materials, Mechanical Engineering, Long-term behaviour, General Materials Science, Fabric reinforced cementitious matrix, Tensile tests, Mortar-based composite, Scanning electron microscope (SEM) analysi
Abstract

Steel reinforced grout is one of the most effective mortar-based composites for the strengthening of masonry structures. Nonetheless, the deterioration of steel cords, especially when embedded in lime-based matrices, may compromise the long-term effectiveness of the strengthening systems. The use of stainless-steel may overcome this drawback, but it has received limited attention so far, since its higher cost makes it less competitive in the market. This work presents a laboratory investigation on the durability of stainless-steel reinforced grout against salt attack, which is the most severe aging condition. Tensile tests were carried out on bare textiles and composite specimens before and after aging in substitute ocean water for up to 5000 hours. Bent textiles, which are required by a number of structural applications, were aged and tested as well. Test outcomes indicate that this technology may be successfully used for the life-span strengthening of the built heritage.

Published
2022

300. Correlation between Oral Lichen Planus and Viral Infections Other Than HCV: A Systematic Review

Author

Alberta Lucchese, Dario Di Stasio, Antonio Romano, Fausto Fiori, Guido Paolo De Felice, Carlo Lajolo, Rosario Serpico, Francesco Cecchetti, Massimo Petruzzi, Lucchese, A., Di Stasio, D., Romano, A., Fiori, F., De Felice, G. P., Lajolo, C., Serpico, R., Cecchetti, F., and Petruzzi, M.

Subjects
Settore MED/28 - MALATTIE ODONTOSTOMATOLOGICHE, HPV, oral lichen planus, EBV, CMV, 610 Medicine & health, General Medicine, oral cancer, 610 Medizin und Gesundheit, HSV-1
Abstract

Objectives: This review aimed to evaluate the correlation between viral infections (HPV, EBV, HSV-1, CMV) other than HCV and oral lichen planus to assess if there is sufficient evidence to establish if these viruses can play a role in the etiopathogenesis of the disease. Materials and methods: We reviewed the literature using different search engines (PubMed, ISI Web of Science, and the Cochrane Library), employing MeSH terms such as “oral lichen planus” and “OLP” in conjunction with other terms. We utilized the Population, Intervention, Comparison, Outcomes, and Study design (PICOS) method to define our study eligibility criteria. Results: A total of 43 articles of the 1219 results initially screened were included in the study. We allocated the 43 selected items into four groups, according to each related virus: HPV, EBV, HSV-1, and CMV. Conclusions: Heterogeneous results neither confirm nor exclude a direct correlation between the investigated viral infections and oral lichen planus etiopathogenesis and its feasible malignant transformation. Many viral agents can cause oral lesions and act as cancerizing agents. Future studies could be desirable to produce comparable statistical analyses and enhance the quantity and quality of the outcomes to promote the translation of research into clinical practice.

Published
2022
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