Results 51 to 60 of about 3,985 (128)

Multiple phase transitions of the susceptible-infected-susceptible epidemic model on complex networks

, 2015
The epidemic threshold of the susceptible-infected-susceptible (SIS) dynamics on random networks having a power law degree distribution with exponent $\gamma>3$ has been investigated using different mean-field approaches, which predict different outcomes.
Ferreira, Silvio C., Mata, Angélica S.
core   +1 more source

ANALISE ISOTÓPICA DE OXIGÊNIO E CARBONO EM MICROFÓSSEIS DA FORMAÇÃO ROMUALDO, CRETACEO INFERIOR, BACIA DO ARARIPE, PERNAMBUCO, NORDESTE DO BRASIL

Geochimica Brasiliensis, 2019
This work presents the analysis of C and O isotope values behavior in the carapace of ostracodes and foraminifera from the Romualdo Formation, Araripe Basin – PE.
Rilda Cardoso Araripe, David Holanda Oliveira, Maria Emília Travassos Rios Tomé, Renata Moura Mello, Alcina Magnólia Franca Barreto, Alcides Nóbrega Sial   +5 more
doaj   +1 more source

Conservation of the palaeontological heritage of Araripe Geopark (Ceará, Brazil) : threats and possible solutions [PDF]

, 2012
The palaeontological heritage of Araripe Geopark has a worldwide recognition due to the diversity and quality of fossils that occur in the Santana Formation (Lower Cretaceous).
Brilha, J. B., Lima, Flávia, Vilas-Boas, Mariana   +2 more
core  

Zero temperature Glauber dynamics on complex networks

, 2006
We study the Glauber dynamics at zero temperature of spins placed on the vertices of an uncorrelated network with a power-law degreedistribution. Application of mean-field theory yields as main prediction that for symmetric disordered initial conditions ...
Castellano, Claudio, Pastor-Satorras, Romualdo   +1 more
core   +1 more source

Robust modeling of human contact networks across different scales and proximity-sensing techniques

, 2017
The problem of mapping human close-range proximity networks has been tackled using a variety of technical approaches. Wearable electronic devices, in particular, have proven to be particularly successful in a variety of settings relevant for research in ...
A Alshamsi, A Madan, A Stopczynski, AL Barabasi, B Nardi, C Cattuto, DJA Toth, F Liljeros, G Doherty-Sneddon, H Arrow, J Fournet, J Stehlé, J Stehlé, K Eames, L Isella, L Isella, M Gnois, M Gonzaléz, M Salathé, M Starnini, M Starnini, M Starnini, M Starnini, M Storper, M Wright, N Aharony, N Eagle, N Eagle, OD Olguín, P Holme, P Holme, R Bales, T Do, T Smieszek, V Blondel, V Gemmetto, W Bion, W Broeck Van den, X Alameda-Pineda   +38 more
core   +1 more source

Dynamically broken Anti-de Sitter action for gravity

, 2008
Due to a suitable Higgs mechanism, a standard Anti-de Sitter gauge theory becomes spontaneously broken. The resulting Lorentz invariant gravitational action includes the Hilbert-Einstein term of ordinary Einstein-Cartan gravity with cosmological constant,
Gursey F., ROMUALDO TRESGUERRES, Tiemblo A., Tresguerres R.   +3 more
core   +1 more source

New marine data and age accuracy of the Romualdo Formation, Araripe Basin, Brazil. [PDF]

Sci Rep, 2020
Melo RM, Guzmán J, Almeida-Lima D, Piovesan EK, Neumann VHML, Sousa AJE.   +5 more
europepmc   +1 more source

Fabric magnético em red beds da Formação de Conraria, Portugal Central [PDF]

, 2010
The main goal of this study was to quantify the magnetic fabric on rock samples of the upper subunit of the Conraria Formation, Silves Group, in the region of Coimbra.
A. F. Rocha, A.F. Soares, C.R. Gomes, H. Sant'Ovaia   +3 more
core  

The first theropod dinosaur (Coelurosauria, Theropoda) from the base of the Romualdo Formation (Albian), Araripe Basin, Northeast Brazil. [PDF]

Sci Rep, 2020
Sayão JM, Saraiva AÁF, Brum AS, Bantim RAM, de Andrade RCLP, Cheng X, de Lima FJ, de Paula Silva H, Kellner AWA.   +8 more
europepmc   +1 more source

Magnetic fabric of Red Beds from the Conraria Formation, Central Portugal [PDF]

, 1987
Poster apresentado ao VIII Congresso Nacional de Geologia, em Braga (9-16 de Julho 2010)O objectivo principal deste estudo consistiu em quantificar o fabric magnético em amostras da subunidade superior da Formação de Conraria, Grupo de Silves, na região
Gomes, C. R., Sant'Ovaia, H., Rocha, A. F., Soares, A. F.   +3 more
core   +1 more source