Zobrazeno 1 - 10
of 2 674
pro vyhledávání: '"A. De la Parra"'
Autor:
From, Jorge, Hernández-Bernal, Jorge, Moinelo, Alejandro Cardesin, Hueso, Ricardo, Ravanis, Eleni, Sierra, Abel Burgos, Wood, Simon, Sitja, Marc Costa, Escalante, Alfredo, Grotheer, Emmanuel, de la Parra, Julia Marin Yaseli, Merrit, Donald, Almeida, Miguel, Breitfellner, Michel, Sierra, Mar, Martin, Patrick, Titov, Dmitri, Wilson, Colin, Larsen, Ethan, Gaztelurrutia, Teresa del Rio, Lavega, Agustin Sanchez
The Visual Monitoring Camera (VMC) is a small imaging instrument onboard Mars Express with a field of view of ~40x30 degrees. The camera was initially intended to provide visual confirmation of the separation of the Beagle 2 lander and has similar te
Externí odkaz:
http://arxiv.org/abs/2410.02999
Autor:
de la Parra, P. V., Readhead, A. C. S, Herbig, T., Kiehlmann, S., Lister, M. L., Pavlidou, V., Reeves, R. A., Siemiginowska, A., Sullivan, A. G., Surti, T., Synani, A., Tassis, K., Taylor, G. B., Wilkinson, P. N., Aller, M. F., Blandford, R. D., Globus, N., Lawrence, C. R., Molina, B., O'Neill, S., Pearson, T. J.
This paper addresses, for the first time, a key aspect of the phenomenology of Compact Symmetric Objects (CSOs) -- the characteristics of their radio spectra. We present a radio-spectrum description of a complete sample of high luminosity CSOs (CSO-2
Externí odkaz:
http://arxiv.org/abs/2408.13077
Autor:
de la Parra, P. V., Kiehlmann, S., Mroz, P., Readhead, A. C. S., Synani, A., Begelman, M. C., Blandford, R. D., Ding, Y., Harrison, F., Liodakis, I., Max-Moerbeck, W., Pavlidou, V., Reeves, R., Vallisneri, M., Aller, M. F., Graham, M. J., Hovatta, T., Lawrence, C. R., Lazio, T. J. W., Mahabal, A. A., Molina, B., O'Neill, S., Pearson, T. J., Ravi, V., Tassis, K., Zensus, J. A.
Owens Valley Radio Observatory (OVRO) observations of supermassive black hole binary (SMBHB) candidate PKS~2131$-$021 revealed, for the first time, six likely characteristics of the phenomenology exhibited by SMBHB in blazars, of which the most unexp
Externí odkaz:
http://arxiv.org/abs/2408.02645
Autor:
Kiehlmann, Sebastian, De La Parra, Philipe Vergara, Sullivan, Andrew, Synani, A., Liodakis, Ioannis, Readhead, Anthony, Graham, Matthew, Begelman, Mitchell, Blandford, Roger, Chatziioannou, Katerina, Ding, Yuanze, Harrison, Fiona, Homan, D., Hovatta, Talvikki, Kulkarni, Shrinivas, Lister, Matthew, Maiolino, Roberto, Max-Moerbeck, Walter, Molina, B., Mroz, Przemyslaw, O'Dea, Christopher, Pavlidou, Vasiliki, Pearson, Timothy J., Aller, Margo, Lawrence, C., Lazio, T. Joseph, O'Neill, S., Prince, Thomas, Ravi, Vikram, Reeves, Rodrigo, Tassis, Konstantinos, Vallisneri, Michele, Zensus, J.
Haystack and Owens Valley Radio Observatory (OVRO) observations recently revealed strong sinusoidal total flux density variations that maintained coherence between 1975 and 2021 in the blazar PKS 2131-021 ($z=1.283)$. This was interpreted as possible
Externí odkaz:
http://arxiv.org/abs/2407.09647
Autor:
M.J. Leal-Witt, M.F. Salazar, F. Peñaloza, G. Castro, V. Hamilton, C. Arias, P. Peredo, A. Valiente, A. De la Parra, J.F. Cabello, V. Cornejo
Publikováno v:
Journal of Inborn Errors of Metabolism and Screening, Vol 9 (2021)
Abstract Since 1992, Chile has had a Newborn Screening Program for Phenylketonuria (PKU), which currently has an incidence of 1:18,916 newborns. The objective of the current study was to describe the 2020 follow up of the Chilean PKU cohort. The vari
Externí odkaz:
https://doaj.org/article/4bd92471a5fb4ec7bc7f5d9b4b6f0f50
In the Staged Progression (SP) epidemic models, infected individuals are classified into a suitable number of states. The goal of these models is to describe as closely as possible the effect of differences in infectiousness exhibited by individuals
Externí odkaz:
http://arxiv.org/abs/2402.04899
Publikováno v:
Sanz, L., Bravo de la Parra, R., Marv\'a, M., & S\'anchez, E, 2019, Non-linear population discrete models with two time scales: re-scaling of part of the slow process. Advances in Difference Equations, 2019(1), 1-25
In this work we present a reduction result for discrete time systems with two time scales. In order to be valid, previous results in the field require some strong hypotheses that are difficult to check in practical applications. Roughly speaking, the
Externí odkaz:
http://arxiv.org/abs/2402.04803
Autor:
de La Parra, Rafael Bravo, Sanz, Luis
Publikováno v:
Discrete & Continuous Dynamical Systems-B, 25(6):2121-2142, 2020
In this work we develop a discrete model of competing species affected by a common parasite. We analyze the influence of the fast development of the shared disease on the community dynamics. The model is presented under the form of a two time scales
Externí odkaz:
http://arxiv.org/abs/2402.04041
Publikováno v:
Advances in Difference Equations, 2021(1), 1-24
The main aim of the work is to present a general class of two time scales discrete-time epidemic models. In the proposed framework the disease dynamics is considered to act on a slower time scale than a second different process that could represent m
Externí odkaz:
http://arxiv.org/abs/2402.03958
Autor:
Sanz, Luis, de la Parra, Rafael Bravo
Publikováno v:
Sanz, L., Bravo de la Parra, R., 2020, Stochastic matrix metapopulation models with fast migration: Re-scaling survival to the fast scale. Ecological Modelling, 418, 108829
In this work we address the analysis of discrete-time models of structured metapopulations subject to environmental stochasticity. Previous works on these models made use of the fact that migrations between the patches can be considered fast with res
Externí odkaz:
http://arxiv.org/abs/2402.03888