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1. Contrasting chaotic with stochastic dynamics via ordinal transition networks

Author

Olivares, F., Zanin, M., Zunino, Luciano José, and Pérez, D.G.

Subjects
Dynamical systems theory, Series (mathematics), Plane (geometry), Computer science, Applied Mathematics, Numerical analysis, NONLINEAR DYNAMICS, Chaotic, General Physics and Astronomy, Statistical and Nonlinear Physics, purl.org/becyt/ford/1.3 [https], Complex network, 01 natural sciences, STOCHASTIC PROCESSES, 010305 fluids & plasmas, purl.org/becyt/ford/1 [https], Position (vector), 0103 physical sciences, CHAOS, 010306 general physics, Representation (mathematics), Algorithm, Mathematical Physics
Abstract

We introduce a representation space to contrast chaotic with stochastic dynamics. Following the complex network representation of a time series through ordinal pattern transitions, we propose to assign each system a position in a two-dimensional plane defined by the permutation entropy of the network (global network quantifier) and the minimum value of the permutation entropy of the nodes (local network quantifier). The numerical analysis of representative chaotic maps and stochastic systems shows that the proposed approach is able to distinguish linear from non-linear dynamical systems by different planar locations. Additionally, we show that this characterization is robust when observational noise is considered. Experimental applications allow us to validate the numerical findings and to conclude that this approach is useful in practical contexts. We introduce a representation space to contrast chaotic with stochastic dynamics. Following the complex network representation of a time series through ordinal pattern transitions, we propose to assign each system a position in a two-dimensional plane defined by the permutation entropy of the network (global network quantifier) and the minimum value of the permutation entropy of the nodes (local network quantifier). The numerical analysis of representative chaotic maps and stochastic systems shows that the proposed approach is able to distinguish linear from non-linear dynamical systems by different planar locations. Additionally, we show that this characterization is robust when observational noise is considered. Experimental applications allow us to validate the numerical findings and to conclude that this approach is useful in practical contexts. Fil: Olivares, F.. Pontificia Universidad Católica de Valparaíso; Chile Fil: Olivares, F.. Pontificia Universidad Católica de Valparaíso; Chile Fil: Zanin, M.. Universidad Politécnica de Madrid; España Fil: Zanin, M.. Universidad Politécnica de Madrid; España Fil: Zunino, Luciano José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Ciencias Básicas; Argentina Fil: Zunino, Luciano José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Ciencias Básicas; Argentina Fil: Pérez, D.G.. Pontificia Universidad Católica de Valparaíso; Chile Fil: Pérez, D.G.. Pontificia Universidad Católica de Valparaíso; Chile

Published
2020
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2. The ACE Brain

Author

Zanin, M., Papo, D., Suckling, J., and Di Ieva, A.

Subjects
functional networks, Boolean modeling, Thesaurus (information retrieval), Opinion, Computer science, 05 social sciences, Neuroscience (miscellaneous), MEDLINE, EDVAC, Data science, 050105 experimental psychology, NO, Functional networks, World Wide Web, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, 0501 psychology and cognitive sciences, complex network theory, 030217 neurology & neurosurgery, ACE, Neuroscience
Published
2016

3. METHOD FOR TOMOGRAPHIC RECONSTUCTION OF A SAMPLE Patent AU2014902582 - filed

Author

Schena, Gianni, Piller, Marzio, Zanin, M., Schena, Gianni, Piller, Marzio, and M., Zanin

Subjects
chemical composition, X-ray computed microtomography, Heavy mineral analysis
Abstract

The present invention relates to tomographic reconstruction of a sample. In a particular form the present invention relates to reconstruction of a micro-tomographic scan of a mineral sample to determine sample composition.

Published
2014

7. Disorder and decision cost in spatial networks

Author

Zanin M., Buldú J.M., Cano P., and Boccaletti S.

Subjects
Decision theory and game theory, Complex networks, Network theory (graphs), Condensed Matter::Disordered Systems and Neural Networks, Computational geometry
Abstract

We introduce the concept of decision cost of a spatial graph, which measures the disorder of a given network taking into account not only the connections between nodes but their position in a two-dimensional map. The influence of the network size is evaluated and we show that normalization of the decision cost allows us to compare the degree of disorder of networks of different sizes. Under this framework, we measure the disorder of the connections between airports of two different countries and obtain some conclusions about which of them is more disordered. The introduced concepts (decision cost and disorder of spatial networks) can easily be extended to Euclidean networks of higher dimensions, and also to networks whose nodes have a certain fitness property (i.e., one-dimensional).

Published
2008

19. Airway remodelling in children with asthma

Author

Turato, Graziella, Barbato, Alessia, Baraldo, Silvia, Bazzan, Erica, Calabrese, Fiorella, Zanin, M. E., Beghé, B., Dimakou, K., Maestrelli, Piero, Fabbri, L. M., Zuin, Renzo, and Saetta, Marina

Subjects
asthma in children
Published
2005

22. Production of Lambda and Lambda(lambda)over-bar Correlations In the Hadronic Decays of the Z(0)

Author

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G. D., Algeri, A., Allen, P., Almehed, S., Alvsvaag, S. J., Amaldi, U., Andreazza, A., Antilogus, P., Apel, W. D., Apsimon, R. J., Arnoud, Y., Asman, B., Augustin, J. E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbiellini, G., Bardin, D. Y., Barker, G. J., Baroncelli, A., Barring, O., Barrio, J. A., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Becks, K. H., Begalli, M., Beilliere, P., Belokopytov, Y., Beltran, P., Benedic, D., Benvenuti, A. C., Berggren, M., Bertrand, D., Bianchi, Fabrizio, Bilenky, M. S., Billoir, P., Bjarne, J., Bloch, D., Blocki, J., Blyth, S., Bocci, V., Bogolubov, P. N., Bolognese, T., Bonesini, M., Bonivento, W., P. S. L., Borisov, G., Borner, H., Bosio, C., Bostjancic, B., Bosworth, S., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., T. J. V., Bozzo, M., Braibant, S., Branchini, P., Brand, K. D., Brenner, R. A., Briand, H., Bricman, C., Brillault, L., R. C. A., Bruckman, P., Brunet, J. M., Budziak, A., Bugge, L., Buran, T., Burmeister, H., J. A. M., Caccia, M., Calvi, M., A. J. C., Campion, R., Camporesi, T., Canale, V., Cao, F., Carena, F., Carroll, L., M. V. C., Cattai, A., Cavallo, F. R., Cerrito, L., Chabaud, V., Chan, A., Charpentier, P., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G. A., Chevalier, L., Chliapnikov, P., Chorowicz, V., J. T. M., Cindro, V., Collins, P., Contreras, J. L., Contri, R., Cortina, E., Cosme, G., Couchot, F., Crawley, H. B., Crennell, D., Crosetti, G., Maestro, J. C., Czellar, S., Dahljensen, E., Dalmagne, B., Dam, M., Damgaard, G., Darbo, G., Daubie, E., Daum, A., Dauncey, P. D., Davenport, M., Davies, J., Dasilva, W., Defoix, C., Delpierre, P., Demaria, N., Deangelis, A., Deboeck, H., Deboer, W., Debrabandere, S., Declercq, C., M. D. M., Delavaissiere, C., Delotto, B., Demin, A., Dijkstra, H., Diciaccio, L., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Dris, M., Dufour, Y., Dupont, F., Edsall, D., Eek, L. O., P. A. M., Ehret, R., Ekelof, T., Ekspong, G., Peisert, A. E., Elsing, M., Engel, J. P., Ershaidat, N., Santo, M. E., Falaleev, V., Fassouliotis, D., Feindt, M., Ferrer, A., Filippas, T. A., Firestone, A., Foeth, H., Fokitis, E., Fontanelli, F., K. A. J., Fousset, J. L., Francon, S., Franek, B., Frenkiel, P., Fries, D. C., Frodesen, A. G., Fuldaquenzer, F., Furstenau, H., Fuster, J., Gamba, D., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Gazis, E. N., Gerber, J. P., Giacomelli, P., Gillespie, D., Gokieli, R., Golob, B., Golovatyuk, V. M., J. J. G., Gopal, G., Gorn, L., Gorski, M., Gracco, V., Grant, A., Grard, F., Graziani, E., Grosdidier, G., Gross, E., Grossetete, B., Gumenyuk, S., Guy, J., Haedinger, U., Hahn, F., Hahn, M., Haider, S., Hajduk, Z., Hakansson, A., Hallgren, A., Hamacher, K., Demonchenault, G. H., Hao, W., Harris, F. J., Hedberg, V., Henkes, T., Henriques, R., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Hietanen, I., Higgins, C. O., Higon, E., Hilke, H. J., Hodgson, S. D., Hofmokl, T., Holmgren, S. O., Holt, P. J., Holthuizen, D., Honore, P. F., Houlden, M., Hrubec, J., Huet, K., Hulth, P. O., Hultqvist, K., Ioannou, P., Iversen, P. S., Jackson, J. N., Jalocha, P., Jarlskog, G., Jarry, P., Jeanmarie, B., Johansson, E. K., Jonker, M., Jonsson, L., Juillot, P., Kalkanis, G., Kalmus, G., Kapusta, F., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E. C., Keranen, R., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klein, H., Klovning, A., Kluit, P., Kochmehrin, A., Koehne, J. H., Koene, B., Kokkinias, P., Koratzinos, M., Korcyl, K., Korytov, A. V., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Kramer, P. H., Krammer, M., Kreuter, C., Krolikowski, J., Kronkvist, I., Kruenermarquis, U., Kucewicz, W., Kulka, K., Kurvinen, K., Lacasta, C., Lambropoulos, C., Lamsa, J. W., Lanceri, L., Lapin, V., Last, I., Laugier, J. P., Lauhakangas, R., Leder, G., Ledroit, F., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Levy, J. M., Lieb, E., Liko, D., Lindgren, J., Lindner, R., Lippi, I., Loerstad, B., Lokajicek, M., Loken, J. G., Lopezfernandez, A., M. A. L., Los, M., Loukas, D., Lozano, J. J., Lutz, P., Lyons, L., Maehlum, G., Maillard, J., Maio, A., Maltezos, A., Mandl, F., Marco, J., Margoni, M., Marin, J. C., Markou, A., Maron, T., Marti, S., Martinezrivero, C., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Medbo, J., Meola, G., Meroni, C., Meyer, W. T., Michelotto, M., Mikulec, I., Mirabito, L., Mitaroff, W. A., Mitselmakher, G. V., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, H., Murray, W. J., Myatt, G., Navarria, F. L., Negri, P., Nemecek, S., Nicolaidou, R., Nielsen, B. S., Nijjhar, B., Nikolaenko, V., P. E. S., Niss, P., Nomerotski, A., Obraztsov, V., Olshevski, A. G., Orava, R., Ostankov, A., Osterberg, K., Ouraou, A., Paganoni, M., Pain, R., Palka, H., Papadopoulou, T. D., Pape, L., Parodi, F., Passeri, A., Pegoraro, M., Pennanen, J., Peralta, L., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Piana, G., Pierre, F., Pimenta, M., Plaszczynski, S., Podobrin, O., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P. N., Read, A. L., Rebecchi, P., Redaelli, N. G., Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, J., Ridky, J., Rinaudo, G., Roditi, I., Romero, Alessandra, Roncagliolo, I., Ronchese, P., Ronnqvist, C., Rosenberg, E. I., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmannkleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schael, S., Schneider, H., M. A. E., Sciolla, G., Scuri, F., Segar, A. M., Seitz, A., Sekulin, R., Sessa, M., Seufert, R., Shellard, R. C., Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, A. N., Skjevling, G., Smadja, G., Smirnova, O., Smith, G. R., Sosnowski, R., Souzasantos, D., Spassov, T., Spiriti, E., Squarcia, S., Staeck, H., Stanescu, C., Stapnes, S., Stavropoulos, G., Stichelbaut, F., Stocchi, A., Strauss, J., Straver, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Szymanski, P., Tabarelli, T., Tchikilev, O., Theodosiou, G. E., Tilquin, A., Timmermans, J., Timofeev, V. G., Tkatchev, L. G., Todorov, T., Toet, D. Z., Toker, O., Tomaradze, A., Tome, B., Torassa, E., Tortora, L., Treille, D., Trischuk, W., Tristram, G., Troncon, C., Tsirou, A., Tsyganov, E. N., Turluer, M. L., Tuuva, T., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., J. A. V., Vandervelde, C., Vanapeldoorn, G. W., Vandam, P., Vanderheijden, M., Vandoninck, W. K., Vaneldik, J., Vaz, P., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L. S., Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopyanov, A. S., Vollmer, M., Voutilainen, M., Vrba, V., Wahlen, H., Walck, C., Waldner, F., Wehr, A., Weierstall, M., Weilhammer, P., Wetherell, A. M., Wickens, J. H., Wilkinson, G. R., W. S. C., Winter, M., Witek, M., Wormser, G., Woschnagg, K., Yamdagni, N., Yepes, P., Zaitsev, A., Zalewska, A., Zalewski, P., Zanin, M., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zito, M., Zontar, D., Zuberi, R., Zumerle, G., and Zuniga, J.

Subjects
E+E ANNIHILATION, BARYON
Published
1993

30. Production of Λ and ΛΛ̄ correlations in the hadronic decays of the Z0

Author

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G. D., Algeri, A., Allen, P., Almehed, S., Alvsvaag, S. J., Amaldi, U., Andreazza, A., Antilogus, P., Apel, W. -D, Apsimon, R. J., Arnoud, Y., Åsman, B., Augustin, J. -E, Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbiellini, G., Bardin, D. Y., Barker, G. J., Baroncelli, A., Barring, O., Barrio, J. A., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Becks, K. -H, Begalli, M., Beilliere, P., Belokopytov, Yu, Beltran, P., Benedic, D., Benvenuti, A. C., Berggren, M., Bertrand, D., Bianchi, F., Bilenky, M. S., Billoir, P., Bjarne, J., Bloch, D., Blocki, J., Blyth, S., Bocci, V., Bogolubov, P. N., Bolognese, T., Bonesini, M., Bonivento, W., Booth, P. S. L., Borisov, G., Borner, H., Bosio, C., Bostjancic, B., Bosworth, S., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T. J. V., Bozzo, M., Braibant, S., Branchini, P., Brand, K. D., Brenner, R. A., Briand, H., Bricman, C., Brillault, L., Brown, R. C. A., Bruckman, P., Brunet, J. -M, Budziak, A., Bugge, L., Buran, T., Burmeister, H., Buytaert, J. A. M. A., Caccia, M., Calvi, M., Camacho Rozas, A. J., Campion, R., Camporesi, T., Canale, V., Cao, F., Carena, F., Carroll, L., Castillo Gimenez, M. V., Cattai, A., Cavallo, F. R., Cerrito, L., Chabaud, V., Chan, A., Charpentier, Ph, Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G. A., Chevalier, L., Chliapnikov, P., Chorowicz, V., Chrin, J. T. M., Cindro, V., Collins, P., Contreras, J. L., Contri, R., Cortina, E., Cosme, G., Couchot, F., Crawley, H. B., Crennell, D., Crosetti, G., Cuevas Maestro, J., Czellar, S., Dahl-Jensen, E., Dalmagne, B., Dam, M., Damgaard, G., Darbo, G., Daubie, E., Daum, A., Dauncey, P. D., Davenport, M., Davies, J., Da Silva, W., Defoix, C., Delpierre, P., Demaria, N., Angelis, A., Boeck, H., Boer, W., Brabandere, S., Clercq, C., Fez Laso, M. D. M., La Vaissiere, C., Lotto, B., Min, A., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Dris, M., Dufour, Y., Dupont, F., Edsall, D., Eek, L. -O, Eerola, P. A. -M, Ehret, R., Ekelof, T., Ekspong, G., Elliot Peisert, A., Elsing, M., Engel, J. -P, Ershaidat, N., Espirito Santo, M., Falaleev, V., Fassouliotis, D., Feindt, M., Ferrer, A., Filippas, T. A., Firestone, A., Foeth, H., Fokitis, E., Fontanelli, F., Forbes, K. A. J., Fousset, J. -L, Francon, S., Franek, B., Frenkiel, P., Fries, D. C., Frodesen, A. G., Fulda-Quenzer, F., Furstenau, H., Fuster, J., Gamba, D., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, Ph, Gazis, E. N., Gerber, J. -P, Giacomelli, P., Gillespie, D., Gokieli, R., Golob, B., Golovatyuk, V. M., Gomez Y Cadenas, J. J., Gopal, G., Gorn, L., Gorski, M., Gracco, V., Grant, A., Grard, F., Graziani, E., Grosdidier, G., Gross, E., Grossetete, B., Gumenyuk, S., Guy, J., Haedinger, U., Hahn, F., Hahn, M., Haider, S., Hajduk, Z., Hakansson, A., Hallgren, A., Hamacher, K., Hamel Monchenault, G., Hao, W., Harris, F. J., Hedberg, V., Henkes, T., Henriques, R., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Hietanen, I., Higgins, C. O., Higon, E., Hilke, H. J., Hodgson, S. D., Hofmokl, T., Holmgren, S. -O, Holt, P. J., Holthuizen, D., Honore, P. F., Houlden, M., Hrubec, J., Huet, K., Hulth, P. O., Hultqvist, K., Ioannou, P., Iversen, P. -S, Jackson, J. N., Jalocha, P., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E. K., Jonker, M., Jonsson, L., Juillot, P., Kalkanis, G., Kalmus, G., Kapusta, F., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E. C., Keranen, R., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klein, H., Klovning, A., Kluit, P., Koch-Mehrin, A., Koehne, J. H., Koene, B., Kokkinias, P., Koratzinos, M., Korcyl, K., Korytov, A. V., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Kramer, P. H., Krammer, M., Kreuter, C., Krolikowski, J., Kronkvist, I., Kruener-Marquis, U., Kucewicz, W., Kulka, K., Kurvinen, K., Lacasta, C., Lambropoulos, C., Lamsa, J. W., Lanceri, L., Lapin, V., Last, I., Laugier, J. -P, Lauhakangas, R., Leder, G., Ledroit, F., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Levy, J. M., Lieb, E., Liko, D., Lindgren, J., Lindner, R., Lippi, I., Loerstad, B., Lokajicek, M., Loken, J. G., Lopez-Fernandez, A., Lopez Aguera, M. A., Los, M., Loukas, D., Lozano, J. J., Lutz, P., Lyons, L., Maehlum, G., Maillard, J., Maio, A., Maltezos, A., Mandl, F., Marco, J., Margoni, M., Marin, J. -C, Markou, A., Maron, T., Marti, S., Martinez-Rivero, C., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Medbo, J., Meola, G., Meroni, C., Meyer, W. T., Michelotto, M., Mikulec, I., Mirabito, L., Mitaroff, W. A., Mitselmakher, G. V., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, H., Murray, W. J., Myatt, G., Navarria, F. L., Negri, P., Nemecek, S., Nicolaidou, R., Nielsen, B. S., Nijjhar, B., Nikolaenko, V., Nilsen, P. E. S., Niss, P., Nomerotski, A., Obraztsov, V., Olshevski, A. G., Orava, R., Ostankov, A., Osterberg, K., Ouraou, A., Paganoni, M., Pain, R., Palka, H., Papadopoulou, Th D., Pape, L., Parodi, F., Passeri, A., Pegoraro, M., Pennanen, J., Peralta, L., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Piana, G., Pierre, F., Pimenta, M., Plaszczynski, S., Podobrin, O., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P. N., Read, A. L., Rebecchi, P., Redaelli, N. G., Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, J., Ridky, J., Rinaudo, G., Roditi, I., Romero, A., Roncagliolo, I., Ronchese, P., Ronnqvist, C., Rosenberg, E. I., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schael, S., Schneider, H., Schyns, M. A. E., Sciolla, G., Scuri, F., Segar, A. M., Seitz, A., Sekulin, R., Sessa, M., Seufert, R., Shellard, R. C., Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, A. N., Skjevling, G., Smadja, G., Smirnova, O., Smith, G. R., Sosnowski, R., Souza-Santos, D., Spassov, T., Spiriti, E., Squarcia, S., Staeck, H., Stanescu, C., Stapnes, S., Stavropoulos, G., Stichelbaut, F., Stocchi, A., Strauss, J., Straver, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Szymanski, P., Tabarelli, T., Tchikilev, O., Theodosiou, G. E., Tilquin, A., Timmermans, J., Timofeev, V. G., Tkatchev, L. G., Todorov, T., Toet, D. 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33. Modelling the Air Transport with Complex Networks: a short review

Author

Fabrizio Lillo, Massimiliano Zanin, Zanin M, Lillo F, Zanin, M, and Lillo, Fabrizio

Subjects
Air Transport Network, Physics - Physics and Society, Air transport, Operations research, Computer science, Extreme events, General Physics and Astronomy, FOS: Physical sciences, ComputerApplications_COMPUTERSINOTHERSYSTEMS, Physics and Society (physics.soc-ph), Complex network, complex network, Air traffic, Key (cryptography), General Materials Science, Physical and Theoretical Chemistry, Resilience (network), resilience
Abstract

Air transport is a key infrastructure of modern societies. In this paper we review some recent approaches to air transport, which make extensive use of theory of complex networks. We discuss possible networks that can be defined for the air transport and we focus our attention to networks of airports connected by flights. We review several papers investigating the topology of these networks and their dynamics for time scales ranging from years to intraday intervals, and consider also the resilience properties of air networks to extreme events. Finally we discuss the results of some recent papers investigating the dynamics on air transport network, with emphasis on passengers traveling in the network and epidemic spreading mediated by air transport., Comment: 28 pages, 6 figures

Published
2013
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34. Gait analysis under the lens of statistical physics

Author

Zanin, Massimiliano, Olivares, Felipe, Pulido-Valdeolivas, Irene, Rausell, Estrella, Gomez-Andres, David, Institut Català de la Salut, [Zanin M, Olivares F] Instituto de Física Interdisciplinar y Sistemas Complejos IFISC (CSIC-UIB), Campus UIB, Palma de Mallorca, Spain. [Pulido-Valdeolivas I, Rausell E] Department of Anatomy, Histology and Neuroscience, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain. [Gomez-Andres D] Department of Anatomy, Histology and Neuroscience, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain. Servei de Neurologia Pediàtrica, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Vall d’Hebron Institut de Recerca (VHIR), Barcelona, Spain. European Reference Network-Rare Neurological Diseases, Barcelona, Spain, Vall d'Hebron Barcelona Hospital Campus, European Research Council, Agencia Estatal de Investigación (España), Ministerio de Ciencia e Innovación (España), and ONCE

Subjects
Irreversibility, Physical Phenomena::Thermodynamics::Entropy [PHENOMENA AND PROCESSES], Multi-fractal analysis, Entropy, Biophysics, fenómenos físicos::termodinámica::entropía [FENÓMENOS Y PROCESOS], Population Characteristics::Health::Physical Fitness::Physical Functional Performance::Gait Analysis [HEALTH CARE], Biochemistry, Human gait, Computer Science Applications, Neurologia, Diagnosis::Diagnostic Techniques and Procedures::Diagnosis::Diagnostic Techniques and Procedures::Physical Examination::Neurologic Examination [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT], Maximum Lyapunov exponent, Structural Biology, Entropia, Trastorns de la marxa, diagnóstico::técnicas y procedimientos diagnósticos::diagnóstico::técnicas y procedimientos diagnósticos::exploración física::exploración neurológica [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS], Genetics, Características de la Población::salud::aptitud física::rendimiento funcional físico::análisis de la marcha [ATENCIÓN DE SALUD], Biotechnology
Abstract

Human gait is a fundamental activity, essential for the survival of the individual, and an emergent property of the interactions between complex physical and cognitive processes. Gait is altered in many situations, due both to external constraints, as e.g. paced walk, and to physical and neurological pathologies. Its study is therefore important as a way of improving the quality of life of patients, but also as a door to understanding the inner working of the human nervous system. In this review we explore how four statistical physics concepts have been used to characterise normal and pathological gait: entropy, maximum Lyapunov exponent, multi-fractal analysis and irreversibility. Beyond some basic definitions, we present the main results that have been obtained in this field, as well as a discussion of the main limitations researchers have dealt and will have to deal with. We finally conclude with some biomedical considerations and avenues for further development., This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 851255). M.Z. and F.O. acknowledges the Spanish State Research Agency through Grant MDM-2017–0711 funded by MCIN/AEI/10.13039/501100011033. Authors acknowledge support from the Escuela Universitaria de Fisioterapia de la ONCE.

Published
2022

35. Trends in Incidence and Transmission Patterns of COVID-19 in Valencia, Spain

Author

Juan Francisco Correcher, Jose De Andres, Maria Otero, Álvaro Briz-Redón, Carolina Ferrer, Jesus Mandingorra, José Conca, Adina Iftimi, Giovanni Landoni, Mayte Ballester, Carolina Soledad Romero Garcia, Massimiliano Zanin, Juan Carlos Catalá Bauset, Manuel Lozano, Dolores de Las Marinas, European Commission, Ministerio de Ciencia, Innovación y Universidades (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas (España), Romero Garcia, C., Iftimi, A., Briz-Redon, A., Zanin, M., Otero, M., Ballester, M., De Andres, J., Landoni, G., De Las Marinas, D., Catala Bauset, J. C., Mandingorra, J., Conca, J., Correcher, J., Ferrer, C., and Lozano, M.

Subjects
Adult, Male, medicine.medical_specialty, Population, 01 natural sciences, Disease Outbreaks, law.invention, Cohort Studies, 010104 statistics & probability, 03 medical and health sciences, 0302 clinical medicine, Catchment Area, Health, Residence Characteristics, Risk Factors, law, Epidemiology, Disease Transmission, Infectious, medicine, Humans, 030212 general & internal medicine, 0101 mathematics, education, Original Investigation, Aged, Aged, 80 and over, education.field_of_study, Geography, SARS-CoV-2, Research, Incidence, Incidence (epidemiology), COVID-19, Outbreak, General Medicine, Middle Aged, 3. Good health, Online Only, Transmission (mechanics), Spain, Relative risk, Household income, Female, Public Health, Demography, Cohort study
Abstract

Importance Limited information on the transmission and dynamics of SARS-CoV-2 at the city scale is available. Objective To describe the local spread of SARS-CoV-2 in Valencia, Spain. Design, Setting, and Participants This single-center epidemiological cohort study of patients with SARS-CoV-2 was performed at University General Hospital in Valencia (population in the hospital catchment area, 364 000), a tertiary hospital. The study included all consecutive patients with COVID-19 isolated at home from the start of the COVID-19 pandemic on February 19 until August 31, 2020. Exposures Cases of SARS-CoV-2 infection confirmed by the presence of IgM antibodies or a positive polymerase chain reaction test result on a nasopharyngeal swab were included. Cases in which patients with negative laboratory results met diagnostic and clinical criteria were also included. Main Outcomes and Measures The primary outcome was the characterization of dissemination patterns and connections among the 20 neighborhoods of Valencia during the outbreak. To recreate the transmission network, the inbound and outbound connections were studied for each region, and the relative risk of infection was estimated. Results In total, 2646 patients were included in the analysis. The mean (SD) age was 45.3 (22.5) years; 1203 (46%) were male and 1442 (54%) were female (data were missing for 1); and the overall mortality was 3.7%. The incidence of SARS-CoV-2 cases was higher in neighborhoods with higher household income (β2 [for mean income per household] = 0.197; 95% CI, 0.057-0.351) and greater population density (β1 [inhabitants per km2] = 0.228; 95% CI, 0.085-0.387). Correlations with meteorological variables were not statistically significant. Neighborhood 3, where the hospital and testing facility were located, had the most outbound connections (14). A large residential complex close to the city (neighborhood 20) had the fewest connections (0 outbound and 2 inbound). Five geographically unconnected neighborhoods were of strategic importance in disrupting the transmission network. Conclusions and Relevance This study of local dissemination of SARS-COV-2 revealed nonevident transmission patterns between geographically unconnected areas. The results suggest that tailor-made containment measures could reduce transmission and that hospitals, including testing facilities, play a crucial role in disease transmission. Consequently, the local dynamics of SARS-CoV-2 spread might inform the strategic lockdown of specific neighborhoods to stop the contagion and avoid a citywide lockdown., This study was supported by the Innovation, Universities, Science and Digital Society Council through the Valencia Innovation Agency (AVI); grant 851255 from the European Research Council under the European Union’s Horizon 2020 research and innovation program (Dr Zanin); grant MDM-2017-0711 from the Spanish State Research Agency through the Severo Ochoa and María de Maeztu Program for Centers and Units of Excellence in Research and Development (Dr Zanin); and from the Universitat de Valencia (Drs Iftimi and Lozano).

Published
2021
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36. Neotropical xenarthrans: a data set of occurrence of xenarthran species in the Neotropics

Author

Guilherme Braga Ferreira, Javier de la Maza, Sandra M. C. Cavalcanti, Samir Gonçalves Rolim, Diana Letícia Kruger Pacheco Carvalho, Juan L. Peña-Mondragón, Jessica Castro-Prieto, Maria Luisa S. P. Jorge, Carlos De Angelo, Micheli Ribeiro Luiz, Daniel H. Thornton, Jesús A. Iglesias, Arthur Francisco Araújo Fernandes, Jonas Sponchiado, Juliani Bruna Zanoni, Lucas Lacerda Toth Quintilham, Thadeu Sobral-Souza, Daniel da Silva Ferraz, Rayana Diniz da Silva, Agustin Manuel Abba, María Eugenia Iezzi, Andreas Kindel, Flávia Regina Miranda, Gabriel Ivan Boaglio, Pamella Gusmão de Goés Brennand, Maurício Eduardo Graipel, Paula Alves Condé, Paulina Arroyo-Gerala, Rogério Cunha de Paula, Sebastián Andrés Costa, Natasha Moraes de Albuquerque, Teresa Cristina Anacleto, Erich Fischer, Adriano Garcia Chiarello, Fernando M. Contreras-Moreno, Roan McNab, André Luis Regolin, Zoila Vega Guarderas, Francesca Belem Lopes Palmeira, Rodrigo de Almeida Nobre, Marcia Maria de Assis Jardim, Diego Queirolo, Erika Castro, Luciano Carramaschi de Alagão Querido, Freddy Pérez-Garduza, Gabriel Favero Massocato, Karine Galisteo Diemer Lopes, Beatriz Fernandes Lima Luciano, Bruno Rodrigo de Albuquerque França, Enrique González, Giordano Ciocheti, Agustin Paviolo, Eleonore Z. F. Setz, Victor Gasperotto Krepschi, Felipe Martello, Juan Pablo Arrabal, Paulo de Tarso Zuquim Antas, Daiane Buscariol, Frederico Gemesio Lemos, Joana Zorzal Nodari, Cristiano Trapé Trinca, Fernanda Santos, Valéria da Cunha Tavares, Luis Renato Rezende Bernardo, Maria Angélica Barbosa Beccato, Juliana F. Ribeiro, Marina Ochoa Favarini, Alexine Keuroghlian, Cesar Rojano, Márcio Leite de Oliveira, Laura K. Honda, Lilian Elaine Rampim, Paloma Marques Santos, Nicolás Cantero, Helena Alves do Prado, Miriam Lucia Lages Perilli, Whaldener Endo, Diego Varela, Mauricio M. Núñez-Regueiro, Ernesto B.Viveiros de Castro, Fábio de Barros, Sebastián A. Ballari, Andreia Magro Moraes, Scarlat Dalva Ferreira, Lerrane de Fatima Cunha, William James Loughry, Ana Cecilia Ochoa, Alexandra Cravino Mol, Milton José de Paula, Igor Pfeifer Coelho, Samuel Eurich Betkowski, Erika de la Peña-Cuéllar, Milene Alves-Eigenheer, Evelyn Beatriz Brítez, Benoit de Thoisy, María Alicia de la Colina, Fabiana Lopes Rocha, Bibiana Gómez-Valencia, Cecília Licarião Luna, Hugo Fernandes-Ferreira, Gustavo Gonsioroski, Jeffrey J. Thompson, Deborah Faria, Izar Aximoff, Katyucha Von Kossel de Andrade Silva, Pierre-Cyril Renaud, Raone Beltrão-Mendes, Carlos Henrique Salvador, Alexandre Casagrande Faustino, Pedro Volkmer de Castilho, Paula Koeler Lira, Natalia Fraguas Versiani, Ricardo Sampaio, Santiago Carvalho, Marina Zanin, Geruza Leal Melo, Anne Karoline de Oliveira, Paulo Afonso Hartmann, Leonardo Carreira Trevelin, Marianela Velilla, Ana Raíssa Cunha Costa, Luiz Flamarion B. Oliveira, Patrício Adriano da Rocha, Carla Danielle de Melo-Soares, Dênis A. Sana, Danielle de Oliveira Moreira, Nivaldo Peroni, Carolina Depolito Melo, Marina Furlan Giubbina, José Julio de Toledo, Fredy Ramírez Pinto, Julio Chacón Pacheco, Javier Hinojosa, Pablo Gerardo Fernández Santiago, Maximiliano Augusto Benedetti, Vinícius Santana Orsini, Patrícia Gonçalves Guedes, Elisandra de Almeida Chiquito, Fabiane Girardi, Douglas de Matos Dias, Layla Reis de Andrade, Soledad de Bustos, Maria João Ramos Pereira, Wellington Hannibal, Mariana Bueno Landis, Juliano André Bogoni, Gindomar Gomes Santana, Eloisa Neves Mendonça, Miguel Coutinho Moretta Monteiro, Andre Monnerat Lanna, Isadora Beraldi Esperandio, Francys E. da Veiga da Costa, Sérgio Lucena Mendes, Wesley Dáttilo, Juan M. Campos Krauer, Sebastián Cirignoli, Fernando Gonçalves, Caryne Braga, Helena Godoy Bergallo, Ariane Teixeira Bertoldi, J. Antonio de la Torre, Luciana Souza Araújo, Paulo Marinho, Carla Cristina Gestich, Magnus Machado Severo, Ludmilla Oliveira Ribeiro, Juliane Pereira-Ribeiro, Jairo José Zocche, Mariana B. Nagy-Reis, Fernanda Zimmermann Teixeira, Fábio D. Mazim, Fernando Ferreira de Pinho, Leandro Perez Godoy, André Valle Nunes, Mozart C. Freitas-Junior, André Luiz Ferreira da Silva, Bruno Leles, Flávio Kulaif Ubaid, Fernando Pedroni, Vilmar Picinatto Filho, Sofia Marques Silva, Allison L. Devlin, Denise Lidoro de Mattia, William Douglas de Carvalho, Juan A. Martínez-Lanfranco, Marcela Alvares Oliveira, Bruna Silva Santos, Jorge Ferreira Lima Neto, Fernando Lima, Emiliano Guijosa-Guadarrama, Amadeo Sánchez, Juan I. Reppucci, Sixto Fernández Ramirez, Simonne Chinem, Ana Yoko Ykeuti Meiga, Vinicius A. G. Bastazini, Omar Correia Neto, Gabriel Lima Aguiar, Camila Cantagallo, Luiz H. Varzinczak, Italo Mourthe, Yamil Edgardo Di Blanco, Lydia Möcklinghoff, Bruna Gomes Oliveira, Stefani Gabrieli Age, Gabriel Preuss, Pryscilla Moura Lombardi, José Maurício Barbanti Duarte, Nicholas Gengler, Paul François Colas-Rosas, Paula Gonzalez Ciccia, Fernanda Guedes da Silva, Claudia Zukeran Kanda, Marcelo Hideki Yamane, Marina Lima da Silva, Gustavo Alvez da Costa Toledo, Cintia Gisele Tellaeche, Guilherme Cavicchioli, Larissa Oliveira Gonçalves, Juliana Silveira dos Santos, Alessandra Bertassoni, Newton Mota Filho, Nila Rássia Costa Gontijo, Maria Augusta Andrade da Silva, Guillermo E. Gil, Cyntia Cavalcante Santos, Alexandre Camargo Martensen, Anelise Montanarin, Barbara Zimbres, Anna Carolina Figueiredo de Albuquerque, Frédéric Delsuc, Mircea Mihart Hidalgo, Fernando R. Tortato, Breno Campelo Lima, Ana Cristina Mendes de Oliveira, Rodolfo Assis Magalhães, Eduardo Marques Santos, Ezequiel Pedó, Danianderson Rodrigues Carvalho, Marcelo Cervini, Antonio M. Mangione, Nereyda Falconi, Jose Roberto de Matos, Roberta Montanheiro Paolino, Mauricio Neves Godoi, Rodrigo Costa Araújo, Tayana Godim, Itiberê P. Bernardi, Daniel M. Casali, Alberto Gonzalez Gallina, Flávia P. Tirelli, Carlos Henrique de Freitas, Marcelo Juliano Rabelo Oliveira, Viviana B. Rojas Bonzi, Fernando A. Perini, Catalina Sánchez-Lalinde, Daniela Rodrigues Vasconcellos, Katia Maria Paschoaletto Micchi de Barros Ferraz, Juarez Carlos Brito Pezzuti, Julia Camara Assis, João Gabriel Ribeiro Giovanelli, Lucía Martínez Retta, Renata Twardowsky Ramalho Bonikowski, Rubem A.P. Dornas, Igor Kintopp Ribeiro, Alvaro García-Olaechea, Ricardo Sartorello, Camila Clozato Lara, Marcos Adriano Tortato, Clinton N. Jenkins, Anderson Feijó, Andrew J. Noss, Roque Lázaro de Gaspari Júnior, Alberto Yanosky, Gabriela Teixeira Duarte, Yaribeth Bravata de la Cruz, Erica Vanessa Maggiorini, Robson Odeli Espíndola Hack, Marcos de Souza Fialho, Noé U. de la Sancha, Camila Silveira Lima, Ricardo S. Bovendorp, Cláudia Bueno de Campos, Fernando Gaspari, Marcelo de Assumpção Pereira da Silva, Alexandre Reis Percequillo, Mauro Galetti, Manoel dos Santos-Filho, Filipe Pereira Rego Santos, Alexandre Martins Costa Lopes, Lucas Neves Perillo, Cindy M. Hurtado, Paula Akkawi, Lilian Bonjorne, Rony García Anleu, Julia Martinez Pardo, Anamélia de Souza Jesus, Ramon Lima Silva, Kena Ferrari Moreira da Silva, Franco L. Souza, Maria Santina de Castro Morini, Arnaud Leonard Jean Desbiez, Caroline Leuchtenberger, João Alves de Oliveira, Ailin Gatica, Luiza Neves Guimarães, Alan N. Costa, Gustavo Gabirele Gaspari, Colleen McDonough, Marcela Figuerêdo Duarte Moraes, Erick Francisco Aguiar, Átilla Colombo Ferreguetti, Denison José Henz, Adryelle Francisca de Souza Moreira, Eduardo G. Carrano, Cristina Jaques da Cunha, Edson Fiedler de Abreu-Júnior, Mariana Sampaio Xavier, Gabriel Selbach Hofmann, Ana Cristyna Reis Lacerda, Ricardo Corassa Arrais, Viviane Maria Guedes Layme, Paulo Ribeiro, Rodrigo Lima Massara, Francisco Grotta-Neto, Jéssica Caroline de Faria Falcão, Gustavo A. Marás, Milton Cezar Ribeiro, Elizandra de Matos Cardoso, Antonio Rossano Mendes Pontes, Armando Muniz Calouro, Tatiane Campos Trigo, Adriana Bocchiglieri, Bernardo Brandão Niebuhr, Otávio Santi Ribeiro, Wilson Roberto Spironello, Emiliano Esterci Ramalho, Ângela Camila Deffaci, Santiago Escobar, Rodrigo Raúl León Pérez, Akyllan Zoppi Medeiro, Ricardo Miranda Braga, Hugo Cabral, Maíra Benchimol, Sean Keuroghlian-Eaton, Juan Carlos Rudolf, Nina Attias, Felipe Moreli Fantacini, Jardel Brandão Seibert, Laura K. Marsh, Sérgio Bazilio, Laís dos Santos Everton, Fernando Cesar Cascelli de Azevedo, Marcelo Passamani, Liana Mara Mendes de Sena, Mario Henrique Alves, Franciane Almeida da Silva, Vinícius Peron de Oliveira Gasparotto, Karl-L. Schuchmann, Ana Carolina Srbek-Araujo, Emerson M. Vieira, Felipe Pedrosa, Clarissa Alves da Rosa, Ricardo Machado, Júlia Beduschi, Júlia Emi de Faria Oshima, Luiz Gustavo R. Oliveira-Santos, Henrique Villas Boas Concone, Alexandre Vogliotti, Leonardo Henrique da Silva, Débora Regina Yogui, Manuela Vieira dos Santos, Carlos Candia-Gallardo, Rafael Souza Cruz Alves, Marcelo Magioli, Adriano Pereira Paglia, Murillo Prado da Silva, Pablo Rodrigues Gonçalves, Marina Rivero, Jose Luis Cartes, Lívia de Almeida Rodrigues, Mayara Guimarães Beltrão, Felipe Bortolotto Peters, Jéssica Helena Mangueira Dias, Josué Santos Almeida, Robert L. Wallace, Ludmila Hufnagel, Daiane Cristina Carreira, Danielle D. Brown, Rogério Grassetto Teixeira da Cunha, Jorge José Cherem, Helio Secco, Pablo G. Perovic, Daniele Barcelos, Ubiratan Piovezan, Caetano Troncoso Oliveira, Elvira D'Bastiani, André Hirsch, Ana Maria de Oliveira Paschoal, Marina Xavier da Silva, Valeria Towns, Edgar Federico Rivadeneira, Marinêz Isaac Marques, Ronaldo Gonçalves Morato, Roxane Schaub, Marcus Vinícius Vieira, Ednaldo Cândido Rocha, Shirley Seixas Pereira Silva, Ingridi Camboim Franceschi, Rodrigo Ayala, Mariana Guenther, Fernando Carvalho, Paula Modenesi Ferreira, John Polisar, Rafael Reyna Hurtado, Burton K. Lim, Alejandro Jesus, Andressa Gatti, Agnis Cristiane de Souza, Pedro Henrique de Faria Peres, Luziene Conceição de Sousa, Gabriela S Oliveira, Alex Bager, Ana Kellen Nogueira Campelo, Marcell Soares Pinheiro, Carlos Eduardo Lustosa Esbérard, Marília A. S. Barros, Marcos Dums, Gabrielle Beca, Daniella Leal Ramos, Bruno Augusto Torres Parahyba Campos, Flavia Caruso, Marcelo Gordo, Diana Friedeberg, Fernanda Delborgo Abra, Luana Marina de Castro Mendonça, Carlos Benhur Kasper, Silvia Benito Santamaría, Fabio de Oliveira Roque, Cinthya Chiva dos Santos, Guilherme Mourão, José Fernando Moreira Ramírez, Rita de Cassia Bianchi, Mario S. Di Bitetti, Nacho Villar, Fernando C. Passos, Flávio Henrique Guimarães Rodrigues, Herbert Duarte, Sabrina Laurito, João Paulo Pandini Favoretti, Paula Cruz, Olivier Pays, Diego Astúa, Pedro Cordeiro Estrela, Saulo Ramos Lima, Cecília Bueno, Tadeu Gomes de Oliveira, Alessandro Rocha, Tainah Cruz Moreira, Laury Cullen, Lucas Lobo Barbosa, Carlos A. Peres, William Bercê, Sara Cortez, Raissa Danielle Praxedes Grangeiro, Rafael Hoogesteijn, Thiago Bernardes Maccarini, María José Andrade-Núñez, Carlos Eduardo Fragoso, Alex Augusto Abreu Bovo, Lucas Leuzinger, Nilton C. Cáceres, Luiz Henrique Medeiros Borges, Joceleia G. Koenemann, Nielson Pasqualotto, Rugieri Juárez, Graziele Oliveira Batista, Micaela Camino, Kathrin Burs, Andrezza Bellotto Nobre, Elildo A.R. Carvalho, Nathália Fernandes Canassa, Donald P. Eaton, Carlos Rodrigo Brocardo, Bráulio A. Santos, Fernanda Cavalcanti de Azevedo, Nicole da Rosa Oliveira, Thiago Ferreira Rodrigues, Verónica Andrea Quiroga, Bernardo Papi, André Luis Moura Botelho, Hugo Fernando del Castillo Cordero, Rosane Vieira Marques, Hugo Reis Medeiros, Gastón Andrés Fernandez Giné, Natalia Mariana Denkiewicz, Vinicius Rodrigues Tonetti, Rafael de Souza Laurindo, Paula Fabiana Pinheiro, Larissa L. Bailey, Martin Roberto Del Valle Alvarez, Ezequiel Vanderhoeven, Vinicius Alberici, Cynthia Elisa Widmer, Claudia Regina Silva, Leonardo Sartorello, Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UR226, Marcos Santos P., Bocchiglieri A., Garcia Chiarello A., Pereira Paglia A., Moreira A., Souza A.C., Abba A.M., Gatica A., Zoppi Medeiro A., Costa A.N., Gonzalez Gallina A., Yanosky A., Jesus A., Bertassoni A., Rocha A., Abreu Bovo A.A., Bager A., Cravino Mol Alexandra, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ecología y Ciencias Ambientales., Camargo Martensen A., Casagrande Faustino A., Martins Costa Lopes A., Reis Percequillo A., Vogliotti A., Keuroghlian A., Colina M.A., Devlin A., García-Olaechea A., Sánchez A., Srbek-Araujo A.C., Ochoa A.C., Mendes Oliveira A.C., Reis Lacerda A.C., Nogueira Campelo A.N., Oliveira Paschoal A.M., Cunha Costa A.R., Ykeuti Meiga A.Y., Souza Jesus A., Feijó A., Hirsch A., Ferreira da Silva A.F., Moura Botelho A.L., Regolin A.L., Monnerat Lanna A., Valle Nunes A., Kindel A., Magro Moraes A., Gatti A., Noss A., Bellotto Nobre A., Montanarin A., Deffaci A.C., Figueiredo de Albuquerque A.C., Oliveira A.K., Mangione A.M., Rossano Mendes Pontes A., Teixeira Bertoldi A., Muniz Calouro A., Desbiez A., Fernandes A., Colombo Ferreguetti A., Andrade da Silva M.A., Zimbres B., Fernandes Lima Luciano B., Thoisy B., Niebuhr B.B., Papi B., Gómez-Valencia B., Santos B., Campelo Lima B., Gomes Oliveira B., Silva Santos B., Torres Parahyba Campos B.A., Leles B., Albuquerque França B.R., Lim B., Troncoso Oliveira C., Cantagallo C., Clozato Lara C., Silveira Lima C., Gestich C.C., Melo-Soares C.D., Peres C., Benhur Kasper C., Candia-Gallardo C., Angelo C., Fragoso C.E., Freitas C.H., Salvador C.H., Brocardo C.R., Depolito Melo C., Leuchtenberger C., Braga C., Sánchez-Lalinde C., Bueno C., Licarião Luna C., Rojano C., Hurtado C.M., Santos C.C., Tellaeche C., Rosa C., Bueno de Campos C., Silva C.R., Zukeran Kanda C., Jenkins N., McDonough C., Trapé Trinca C., Jaques da Cunha C., Widmer C.E., Santos C., Buscariol D., Carreira D.C., Rodrigues Carvalho D., Silva Ferraz D., Casali D., Thornton D., Rodrigues Vasconcellos D., Barcelos D., Brown D., Leal Ramos D., Oliveira Moreira D., Yogui D.R., Faria D., Sana D.A., Lidoro de Mattia D., Henz D.J., Friedeberg D., Kruger Pacheco Carvalho D.L., Astúa D., Queirolo D., Varela D., Eaton D., Matos Dias D., Rivadeneira E.F., Rocha E.C., Abreu-Júnior E.F., Carrano E., Marques Santos E., Freire Setz E.Z., Alves Ribeiro Carvalho E., Almeida Chiquito E., Matos Cardoso E., Neves Mendonça E., D’Bastiani E., Vieira E., Ramalho E.E., Guijosa-Guadarrama E., González E., Maggiorini E.V., Fischer E., Aguiar E.F., Castro E.P., Peña-Cuéllar E., Viveiros de Castro E., Brítez E.B., Vanderhoeven E.A., Pedó E., Lopes Rocha F., Girardi F., Oliveira Roque F., Dias Mazim F., Monteiro de Barros F., Martello F., Moreli Fantacini F., Pedrosa F., Bortolotto Peters F., Delborgo Abra F., Cavalcanti de Azevedo F., Silva Santos F., Guedes da Silva F., Zimmermann Teixeira F., Araujo Perini F., Passos F., Carvalho F., Cascelli de Azevedo F.C., Ferreira de Pinho F., Gonçalves, Lima F., Contreras-Moreno F., Pedroni F., Tortato F.R., Pereira Rego Santos F., Caruso F., Pereira Tirelli F., Miranda F.R., Guimarães Rodrigues F.H., Kulaif Ubaid F., Lopes Palmeira F.B., Almeida da Silva F., Grotta-Neto F., Souza F.L., Costa F.E., Pérez-Garduza F., Delsuc F., Lemos F.G., Ramirez Pinto F., Boaglio G.I., Fávero Massocato G., Preuss G., Selbach Hofmann G., Lima Aguiar G., Schuck Oliveira G., Teixeira Duarte G., Beca G., Fernandez Giné G.A., Oliveira Batista G., Gil G.E., Gonsioroski G., Secco H., Reis Medeiros H., Pfeifer Coelho I., Camboim Franceschi I., Bernardi I., Torre J.A., Zocche J.J., Seibert J.B., Faria Falcão J.C., Mangueira Dias J.H., Zorzal Nodari J., Alves Oliveira J., Ribeiro Giovanelli J.G., Pandini Favoretti J.P., Polisar J., Sponchiado J., Cherem J.J., Moreira Ramírez J.F., Toledo J.J., Barbanti Duarte J.M., Matos J.R., Arrabal J.R., Faria Oshima J.E., Fernandes Ribeiro J., Bogoni J.A., Chacón Pacheco J.A., Schuchmann K., Ferraz K., Santos Everton L., Bailey L., Oliveira Gonçalves L., Cullen L., Reis de Andrade L., Carreira Trevelin L., Bonjorne L., Almeida Rodrigues L., Leuzinger L., Neves Perillo L., Souza Araújo L., Hufnagel L., Oliveira Ribeiro L., Rezende Bernardo L.R., Rodrigues Oliveira-Santos L.G., Varzinczak L.H., Medeiros Borges L.H., Neves Guimarães L.H., Möcklinghoff L., Alvares Oliveira M., Magioli M., Assis Jardim M.M., Leite de Oliveira M., Tortato M.A., Dums M., Iezzi M.E., Ramos Pereira M.J., Jorge M.J., Castro Morini M.S., Bueno Landis M., Sampaio Xavier M., Barros M., Lima da Silva M., Rivero M., Zanin M., Marques I.M., Alves M.H., Di Bitetti M., Alvarez M., Graipel M.E., Neves Godoi M., Benedetti M.A., Guimarães Beltrão M., Coutinho Moretta Monteiro M., Paula M.J., Lages Perilli M.L., Prado da Silva M., Villar N., Moraes De Albuquerque N., Canassa N., Mota Filho N., Rosa Oliveira N., Pasqualotto N., Cáceres N.C., Attias N., Ochoa Favarini M., Santi Ribeiro O., Rodrigues Gonçalves P., Rocha P.A., Alves Condé P., Akkawi P., Koeler Lira P., Cruz P., Modenesi Ferreira P., Arroyo-Gerala P., Hartmann P.A., Tarso Zuquim Antas P., Marinho P.H., Faria Peres P.H., Peña-Mondragón J.L., Moura Lombardi P., Souza Laurindo R., Souza Cruz Alves R., Praxedes Grangeiro R.D., Lima Silva R., Beltrão-Mendes R., Twardowsky Ramalho Bonikowski R., Reppucci J., Corassa Arrais R., Sampaio R., Sartorello R., Siqueira Bovendorp R., McNab R., Espíndola Hack R.O., Assis Magalhães R., Costa Araújo R., Almeida Nobre R., León Pérez R.R., Lima Massara R., Cunha de Paula R., García Anleu R., Vieira Marques R., Dornas R., Gonçalves Rolim S., Cavalcanti S., Ramos Lima S., Ballari S., Santamaría S.B., Marques Silva S., Age S.G., Godim T., Sobral-Souza T., Bernardes Maccarini T., Ferreira Rodrigues T., Piovezan U., Cunha Tavares V., Quiroga V.A., Gasperotto Krepschi V., Picinatto Filho V., Galvão Bastazini V.A., Oliveira Gasparotto V.P., Santana Orsini V., Guedes Layme V.M., Hannibal W., Dáttilo W., Carvalho W.D., Loughry W.J., Di Blanco Y.E., Núñez-Regueiro M., Furlan Giubbina M., Passamani M., Carramaschi de Alagão Querido L., Alvez da Costa Toledo G., Kintopp Ribeiro I., Quintilham L., Bustos S., Maza J., Ferreira Lima Neto J., Von Kossel de Andrade Silva K., Sartorello L., Rampim L.E., Marás G., Camino M., Freitas-Junior M.C., Perovic P.G., Montanheiro Paolino R., Ferreira S.D., Towns V., Beraldi Esperandio I., Aximoff A., Beduschi J., Guenther M., Cassia Bianchi R., Keuroghlian-Eaton K., Lucena Mendes S., Fatima Cunha L., Cirignoli S., Ciocheti G., Alves do Prado H., Fernandes-Ferreira F., Mendes de Sena L.M., Hideki Yamane M., Brennand P., Silva R.D., Escobar S., Endo W., Reyna Hurtado R., Costa Gontijo R., Marsh L., Machado Severo M., Martinez Pardo J., Costa S.A., Leal Melo G., Gomes Santana G., Miranda Mourão G., Gaspari G.G., Duarte H., Cabral H., Silva L.H., Mendonça L., Barbosa L.L., Vieira dos Santos M., Figuerêdo Duarte Moraes M., Gordo M., Fraguas Versiani N., Cantero N., Pays O., Gonçalves Guedes P., Colas-Rosas P.F., Ribeiro P., Renaud P.C., Hoogesteijn R.J., Ayala R., Grassetto Teixeira da Cunha R., Schaub R., Laurito S., Eurich Betkowski S., Cortez S., Pereira Silva S.S., Gomes de Oliveira T., Spironello W.R., Gengler N., Mihart Hidalgo M., Juárez R., Iglesias J., Anacleto T.C., Souza Fialho M., Cavicchioli G., Barbosa Beccato M.A., Silva M., Correia Neto O., Galisteo Diemer Lopes K., Perez Godoy L., Ribeiro Luiz M., Rojas Bonzi V., Braga Ferreira G., Rabelo Oliveira M.J., Hinojosa J., Barbosa de Oliveira L.F., Nagy-Reis M.B., Fernández Ramirez S., Villas Boas Concone H., Mourthe I., Martínez-Lanfranco J., Zanoni J.B., Cruz Moreira T., Vega Guarderas Z., Bazilio S., Cervini M., Soares Pinheiro M., Gonçalves Morato R., Peroni N., Campos Trigo T., Bomfim Machado R., Gaspari F., Koenemann J., Rudolf J.C., Benchimol M., Vieira M.V., Martínez Retta L., Fernández Santiago P.G., Gonzalez Ciccia P., Cordeiro Estrela P., Carvalho S., Lustosa Esbérard C.E., Bravata-de la Cruz Y., Castro-Prieto J., Miranda Braga R., Cartes J.L., Andrade-Núñez M.J., Denkiewicz N.M., Falconi N., Brito Pezzuti J.C., Castillo Cordero H.E., Conceição de Sousa L., Gaspari Júnior R.L., Santos-Filho M., Almeida J.S., Thompson J., Silveira dos Santos J., Pereira-Ribeiro J., Burs K., Ferrari Moreira da Silva K., Velilla M., Xavier da Silva M., Sancha N., Pinheiro P.F., Volkmer de Castilho P., Bercê W., Camara Assis J., Rodrigues Tonetti V., Alves-Eigenhee M., Chinem S., Honda L., Godoy Bergallo H., Alberici V., Wallace R., Campos Krauer J.M., Ribeiro M.C., and Galetti M.

Subjects
0106 biological sciences, NEOTROPICAL REGION, biodiversity hotspot, xenarthra, habitat loss, Pilosa, HABITAT LOSS, Forest fragmentation, XENARTHRA, 010603 evolutionary biology, 01 natural sciences, purl.org/becyt/ford/1 [https], PILOSA, Ciencias Biológicas, Cingulata, neotropical mammals, purl.org/becyt/ford/1.6 [https], NEOTROPICAL MAMMALS, ComputingMilieux_MISCELLANEOUS, Ecology, Evolution, Behavior and Systematics, forest fragmentation, BIODIVERSITY HOTSPOT, pilosa, biology, Ecology, 010604 marine biology & hydrobiology, Xenarthra, FOREST FRAGMENTATION, Ecología, biology.organism_classification, Biodiversity hotspot, Data set, Geography, Habitat destruction, cingulata, neotropical region, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, CINGULATA, CIENCIAS NATURALES Y EXACTAS
Abstract

Xenarthrans -anteaters, sloths, and armadillos- have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, 10 anteaters, and 6 sloths. Our data set includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the southern United States, Mexico, and Caribbean countries at the northern portion of the Neotropics, to the austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n = 5,941), and Cyclopes sp. Have the fewest (n = 240). The armadillo species with the most data is Dasypus novemcinctus (n = 11,588), and the fewest data are recorded for Calyptophractus retusus (n = 33). With regard to sloth species, Bradypus variegatus has the most records (n = 962), and Bradypus pygmaeus has the fewest (n = 12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other data sets of Neotropical Series that will become. Fil: Marques Santos, Paloma. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; Brasil Fil: Bocchiglieri, Adriana. Universidade Federal de Sergipe; Brasil Fil: Garcia Chiarello, Adriano. Universidade de Sao Paulo; Brasil Fil: Pereira Paglia, Adriano. Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas; Brasil Fil: Moreira, Adryelle. Amplo Engenharia e Gestão de Projetos ; Brasil Fil: Abba, Agustin Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina Fil: Paviolo, Agustin Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Universidad Nacional de Misiones. Instituto de Biología Subtropical; Argentina Fil: Gatica, Ailin. Universidad Nacional de San Luis; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina Fil: Ochoa, Ana Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina Fil: de Angelo, Carlos Daniel. Universidad Nacional de Rio Cuarto. Facultad de Cs.exactas Fisicoquimicas y Naturales. Instituto de Ciencias de la Tierra, Biodiversidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Cordoba. Instituto de Ciencias de la Tierra, Biodiversidad y Ambiente.; Argentina Fil: Tellaeche, Cintia Gisele. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Centro de Estudios Ambientales Territoriales y Sociales; Argentina. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina Fil: Varela, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina Fil: Vanderhoeven, Ezequiel Andres. Ministerio de Salud. Instituto Nacional de Medicina Tropical; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Caruso, María Flavia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Administración de Parques Nacionales. Delegación Regional del Noroeste; Argentina Fil: Arrabal, Juan Pablo. Secretaria de Gobierno de Salud. Instituto Nacional de Medicina Tropical - Sede Puerto Iguazú Misiones; Argentina. Centro de Investigaciones del Bosque Atlántico; Argentina Fil: Iezzi, María Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina Fil: Di Bitetti, Mario Santiago. Centro de Investigaciones del Bosque Atlántico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina Fil: Cruz, Paula Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina. Centro de Investigaciones del Bosque Atlántico; Argentina Fil: Reppucci, Juan Ignacio. Administración de Parques Nacionales. Delegación Regional del Noroeste; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Benito Santamaria, Silvia. Centro de Investigaciones del Bosque Atlántico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina Fil: Quiroga, Verónica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina Fil: Di Blanco, Yamil Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina Fil: Marás, Gustavo Arnaldo. Administración de Parques Nacionales. Delegación Regional del Noroeste; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Camino, Micaela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina Fil: Perovic, Pablo Gastón. Administración de Parques Nacionales. Delegación Regional del Noroeste; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Martínez Pardo, Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina Fil: Costa, Sebastián Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina Fil: Pinheiro, Fabiana. Universidade Federal do Rio Grande do Sul; Brasil Fil: Volkmer de Castilho, Pedro. Universidade Federal de Santa Catarina; Brasil Fil: Bercê, William. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil Fil: Camara Assis, Julia. Universidade Estadual Paulista Julio de Mesquita Filho. Faculdade de Engenharia.; Brasil Fil: Rodrigues Tonetti, Vinicius. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil Fil: Alves Eigenheer, Milene. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil Fil: Chinem, Simonne. Universidade de Sao Paulo; Brasil Fil: Honda, Laura K.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil Fil: Bergallo, Helena de Godoy. Universidade do Estado de Rio do Janeiro; Brasil Fil: Alberici, Vinicius. Universidade de Sao Paulo; Brasil Fil: Wallace, Robert. Wildlife Conservation Society; Estados Unidos Fil: Ribeiro, Milton Cezar. Universidade de Sao Paulo; Brasil Fil: Galetti, Mauro. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil

Published
2019
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37. Challenges and opportunities in the recovery/rejection of trace elements in copper flotation-a review

Author

William Skinner, Massimiliano Zanin, J.P. Lem, Eric A. Agorhom, Agorhom, E A, Lem, J P, Skinner, W., and Zanin, M

Subjects
Mechanical Engineering, Metallurgy, copper ores, arsenic, chemistry.chemical_element, General Chemistry, gold, Uranium, Geotechnical Engineering and Engineering Geology, Copper, Porphyry copper deposit, uranium, Trace (semiology), chemistry, Control and Systems Engineering, fluorine, Fluorine, Arsenic
Abstract

In most copper sulphide flotation processes, optimising recovery of trace elements such as gold or maximising the rejection of penalty elements such as uranium, arsenic and fluorine remains a major metallurgical challenge. This review looks at the existing and possible strategies of improving gold recovery in porphyry copper ores and rejection of penalty elements such as uranium, arsenic and fluorine in copper flotation concentrates. Refereed/Peer-reviewed

Published
2015
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38. Introduction to the stirred milling of nickel laterites for upgrading nickel

Author

Massimiliano Zanin, William Skinner, David J. Robinson, Bern Klein, Libin Tong, Jonas Addai-Mensah, Keith Quast, Tong, L, Klein, B, Zanin, M, Skinner, W M, Quast, K, Addai-Mensah, J, and Robinson, D

Subjects
Nickel, Materials science, chemistry, communication, Metallurgy, General Earth and Planetary Sciences, chemistry.chemical_element, nickel laterite, grinding, mineral processing, General Environmental Science
Abstract

The stirred milling of nickel laterites offers possibilities for improving liberation and selective size reduction of soft nickel-bearing minerals in laterites. Batch grinding tests were performed in a netzsch™ lME4 stirred mill on siliceous goethitic, goethitic, and saprolitic nickel laterites. Tests on the −2,000 μm sample displayed the effects of selective comminution. The −38 μm product of grinding the −2,000/+38 μm feed confirmed the effects of selective grinding and nickel upgrading. Size classification followed by stirred milling is recommended for nickel upgrading. The energy requirement in the stirred milling was also investigated.nature frequently result in specifications that can be made simpler, more economical, and better focused on the project’s goals. This paper surveys current specification writing practices and proposes an improved approach recognizing that product design, procurement, manufacturing, and quality are interrelated in a successful project. The lessons learned here can apply to all types of machinery specifications - See more at: http://www.cim.org/en/Publications-and-Technical-Resources/Publications/Journals/2015/01/JOUR-2015-01-01/JOUR-2015-01-03#sthash.GkviAIcB.dpuf

Published
2015
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39. Effect of particle size distribution on recovery of coarse chalcopyrite and galena in Denver flotation cell

Author

William Skinner, Bellson Awatey, Massimiliano Zanin, Awatey, B, Skinner, W, and Zanin, M

Subjects
Chromatography, Chemistry, Chalcopyrite, Sodium, Metals and Alloys, flotation, chemistry.chemical_element, froth stability, engineering.material, coarse particles, Industrial and Manufacturing Engineering, chemistry.chemical_compound, Viscosity, Polypropylene glycol, Rheology, Chemical engineering, Galena, visual_art, Particle-size distribution, engineering, visual_art.visual_art_medium, rheology, Particle size
Abstract

The flotation recovery by particle size of single mineral chalcopyrite and galena was studied in a Denver flotation cell, using sodium dicresylthiophosphate (DTP) and sodium isopropyl xanthate (SIPX) as collectors and polypropylene glycol (PPG) as a frother. The study was extended to very coarse particle size (up to 1·6 mm). Froth stability was also measured in parallel to the batch flotation tests, in a specifically designed froth stability column, following the Bikerman approach. It is shown that particles up to 850 μm can be floated successfully, provided they are liberated and hydrophobic. However, the recovery of both chalcopyrite and galena was strongly influenced by the overall particle size distribution, decreasing sharply as the fraction of fines (−106 μm) in the feed also decreased. Rheology measurements showed negligible differences in pulp viscosity, and therefore in the collection zone hydrodynamics, between the different conditions tested. Froth stability, on the contrary, decreased as the feed particle size distribution became coarser. Correlation was found between the amount of fines in the pulp, froth stability and flotation recovery. The recovery of mineral particles is critically dependent on froth stability, which in turn is highly influenced by the overall particle size distribution of the feed material. For these reasons, the study also suggests that it is not possible in batch flotation to determine the rate and recovery of the coarse particle size fractions floating them independently from the fine size fractions. Refereed/Peer-reviewed

Published
2013
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40. Influence of gold mineralogy on its flotation recovery in a porphyry copper–gold ore

Author

Massimiliano Zanin, Eric A. Agorhom, William Skinner, Agorhom, Eric A, Skinner, W, and Zanin, M

Subjects
QEMSCAN, optimisation, General Chemical Engineering, flotation, chemistry.chemical_element, Mineralogy, engineering.material, Industrial and Manufacturing Engineering, Porphyry copper deposit, porphyry copper–gold ore, Chemistry, Chalcopyrite, Applied Mathematics, Metallurgy, General Chemistry, gold, Covellite, Copper, Sphalerite, visual_art, visual_art.visual_art_medium, engineering, Gangue, Pyrite, mineralogy
Abstract

The present study investigates the implications of gold mineralogy on its flotation recovery, in a typical porphyry copper–gold ore (1.7 g/t Au feed grade). Also, flotation strategies to optimise gold recovery and grade without compromising copper recovery and grade were examined. The approach used in this study involves a combination of different mineralogical techniques such as quantitative X-ray diffraction (QXRD) and scanning electron microscopy (QEMSCAN). Based on the mineralogical information obtained, different collector regimes involving sodium iso-butyl xanthate (SIBX), N-butoxycarbonyl-n butyl thionocarbamate (XD5002), mercaptobenzothiazole (MBT) and dithiophosphate (DTP) at different grind sizes (p80, i.e. a nominal product size of 80 wt% passing (a) 70 µm and (b) 38 µm screen) were tested to examine the flotation behaviour of gold in relation to copper recovery. Chalcopyrite and covellite are the principal copper mineral phases in the ore, with pyrite as the main sulphide gangue mineral. Quartz, Fe oxide and carbonates were identified as the main non-sulfide gangue minerals. The identified gold particles occurred as either liberated particles (∼10–22 µm) or fine inclusions (∼1–3 µm) in pyrite, biotite and sphalerite. Two-stage flotation (copper and pyrite rougher stages) at a p80 of 70 µm indicated that high gold (95.2%) and copper (97.4%) recovery can be achieved, but the levels of pyrite in the concentrate are also very high (49.1%). At finer grind (p80=38 µm) and without pyrite flotation stage, gold recovery decreased from 95.2% to 73%, but at an improved grade (5.3 g/t) compared to 3.5 g/t in the baseline. This approach improved gold grade significantly due to a drastic reduction in pyrite recovery. The flotation study indicates that the collector regime, SIBX/XD5002 (at 38 µm feed size) gives the maximum gold recovery and grade while rejecting significant pyrite without compromising copper recovery and grade. Further studies are warranted to identify means of recovering Au from the copper flotation tail. Refereed/Peer-reviewed

Published
2013
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41. Upgrading of low-grade gold ore samples for improved particle characterisation using Micro-CT and SEM/EDX

Author

William Skinner, Eric A. Agorhom, Massimiliano Zanin, Agorhom, Eric A, Skinner, W, and Zanin, M

Subjects
Materials science, Mineral, Scanning electron microscope, General Chemical Engineering, Metallurgy, Energy-dispersive X-ray spectroscopy, Mineralogy, Gold Galena Quartz Vertical water stream elutriation Surface analysis, gold, engineering.material, galena, quartz, surface analysis, Mechanics of Materials, Galena, engineering, Particle, Tomography, Gold ore, vertical water stream elutriation, Quartz
Abstract

There is a considerable challenge in accurate characterisation of gold (Au) particles in low-grade plant ore mineral samples. This is particularly true for automated mineralogical tools such as X-ray micro-computed tomography (Micro-CT) and scanning electron microscopy (SEM), where the need for statistically meaningful numbers of particles requires many sections to be analysed. Whiles the Vertical Gas Stream (VGS) elutriator is suitable for coarse particle upgrading (i.e. >38 lm), the performance is poor for finer particles (i.e.

Published
2012
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42. Influence of particle size and contact angle on the flotation of chalcopyrite in a laboratory batch flotation cell

Author

S. Muganda, Massimiliano Zanin, Stephen Grano, Muganda, S, Zanin, M, and Grano, SR

Subjects
Range (particle radiation), Chemistry, Chalcopyrite, floatability component, Mineralogy, Fraction (chemistry), Mechanics, Geotechnical Engineering and Engineering Geology, Contact angle, Reaction rate constant, Geochemistry and Petrology, critical contact angle, visual_art, Particle-size distribution, visual_art.visual_art_medium, Particle size, Constant (mathematics), advancing contact angle
Abstract

The flotation response of chalcopyrite has been characterized as a function of particle size and advancing contact angle. The advancing contact angle of individual particle size fractions was controlled to different values. Flotation experiments were carried out under constant hydrodynamics and feed particle size distribution. A two-component kinetic model was used to fit the experimental flotation data. The maximum recovery increased with advancing contact angle for each size fraction. Particles within the same size fraction and within the same contact angle range displayed similar flotation behaviour, within experimental error, in different tests. Evidence of a distribution of advancing contact angle values within each particle size fraction was found, and it was assumed that particles in the non-floating fraction had advancing contact angle values below the critical contact angle required for stable bubble-particle attachment. The flotation results were used to model the maximum recovery and the critical contact angle as a function of particle size, assuming a statistical distribution of contact angle values about a measured mean. The recovery and rate constant data were collated into master curves as a function of particle size for different contact angle ranges. These master curves, together with the critical contact angle, may be used to benchmark the flotation response of chalcopyrite and to infer an effective operational contact angle in natural ores. Refereed/Peer-reviewed

Published
2011
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43. Complexity in air traffic management

Author

Zanin, Massimilian, Balbas, Marta, Herranz, Ricardo, Rivas, Damian, Vazquez, Rafael, Blom, Henk, Helmke, Hartmut, Lillo, Fabrizio, Mantegna, Rosario, Micciche, Salvatore, Cook, Andrew, Tanner, Graham, Zanin M, Balbas R, Herranz R, Rivas D, Vasquez R, Blom H, Helmke H, Lillo F, Mantegna RN, Micciche S, Cook, Tanner G, Zanin, M, Balbas, R, Herranz, R, Rivas, D, Vasquez, R, Blom, H, Helmke, H, Lillo, Fabrizio, Mantegna, Rn, Micciche, S, Cook, A, and Tanner, G.

Subjects
ComplexWorld, Uncertainty, Complexity Science, resilience

44. The influence of particle shape on the dynamic dense medium separation of plastics

Author

L. De Lorenzi, Massimiliano Zanin, Paolo Bevilacqua, G. Ferrara, Ferrara, G., Bevilacqua, Paolo, DE LORENZI, L., and Zanin, M.

Subjects
Engineering drawing, Materials science, Plastic recycling, Geochemistry and Petrology, Cyclone, Partition (number theory), Comminution, Mechanics, Probable error, Geotechnical Engineering and Engineering Geology
Abstract

The separation of post-consumer plastics of different polymeric compositions is becoming an important topic for the reduction of waste and promotion of recycling. The comminution of plastics creates variable particle shapes which cause difficulties in the separation by a cyclone. To study the influence of particle shape, tests have been performed to determine how the partition curve changes with particle shape in cylindrical cyclones. The test results give a complete picture on the influence of particle shape and size on the cut density d50 and the probable error Ep. Coupled with a mathematical description of the partition curve, these parameters can assist in process simulation, selection and design of dense medium separation (DMS) systems devoted to plastic recycling.

Published
2000
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