Search Results - "Lázaro, J. Pérez"

Weak-Type Lower Bounds for High-Dimensional Hardy–Littlewood Maximal Operators on Certain Measures via Averaging Operators by Pérez Lázaro, F. J.

“…Consider R d with the euclidean distance, and let 0 < α < 1 . We study the behavior of the averaging operators given by the radial density d μ ( x ) = | x | -…”
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Evaluation of particle tracking codes for dispersing particles in porous media by Berghouse, Marc, Miele, Filippo, Perez, Lazaro J., Bordoloi, Ankur Deep, Morales, Verónica L., Parashar, Rishi

“…Particle tracking (PT) is a popular technique in microscopy, microfluidics and colloidal transport studies, where image analysis is used to reconstruct…”
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Development of a positron emission tomography risks map by Rodríguez Fernández, A, Triviño Ibáñez, E M, Gómez Río, M, Pérez Lázaro, J J, Fernández Ruiz, I, Ramírez Navarro, Á, García Rivero, Y, Córdoba Cañete, E, Romero Fernández, C, Llamas-Elvira, J M

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Identifying and prioritising adverse episodes and failures related to patient safety in Pain Treatment Units by Pérez Lázaro, J J, Fernández Ruiz, I, Tejedor Fernández, M, Guerra de Hoyos, J A, Jiménez Rodríguez, M, de Pazzis Die de Ortega, M, Insausti Valdivia, J, Rodríguez López, M, Romero Cotelo, J, Gálvez Mateos, R

“…An expert group coordinated by the Andalusian School of Public Health identified the most serious and frequent adverse events in Pain Treatment Units (PTU), as…”
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Functions of bounded variation, the derivative of the one dimensional maximal function, and applications to inequalities by Aldaz, J. M., Lázaro, J. Pérez

“…We prove that if f:I\subset \mathbb{R}\to \mathbb{R} is of bounded variation, then the uncentered maximal function Mf is absolutely continuous, and its…”
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Prevention of adverse events for patient safety in chronic pain treatment units by Pérez Lázaro, J J, Fernández Ruiz, I, Tejedor Fernández, M, Guerra de Hoyos, J A, Jiménez Rodríguez, M, de Pazzis Die de Ortega, M, Insausti Valdivia, J, Rodríguez López, M, Romero Cotelo, J, Gálvez Mateos, R

“…To identify preventive actions that minimise risk of patients safety in pain treatment units, and to cluster preventive actions into homogeneous groups. The…”
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Embeddings for anisotropic Besov spaces by Pérez Lázaro, F. J.

“…We prove embedding theorems for fully anisotropic Besov spaces. In particular, inequalities between modulus of continuity in different metrics and of Sobolev…”
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Upscaling of Mixing‐Limited Bimolecular Chemical Reactions in Poiseuille Flow by Perez, Lazaro J., Hidalgo, Juan J., Dentz, Marco

“…We consider the fast irreversible bimolecular chemical reaction A+B→C in the Poiseuille flow through a channel, in which A displaces B. This system allows to…”
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Contributions of biofilm-induced flow heterogeneities to solute retention and anomalous transport features in porous media by Perez, Lazaro J., Parashar, Rishi, Plymale, Andrew, Scheibe, Timothy D.

“…•We integrate experimental biofilm images of Paenibacillus 300A strain with mathematical modeling.•Bioflm is represented as a synthetic porous structure with…”
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Lower bounds for the centered Hardy-Littlewood maximal operator on the real line by Lázaro, F. J. Pérez

“…Let $1<p<\infty$. We prove that there exists an $\varepsilon_p>0$ such that for each $f\in L^p(\mathbb{R})$, the centered Hardy-Littlewood maximal operator $M$…”
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Reactive Random Walk Particle Tracking and Its Equivalence With the Advection‐Diffusion‐Reaction Equation by Perez, Lazaro J., Hidalgo, Juan J., Dentz, Marco

“…We present a reactive random walk particle‐tracking approach to describe bimolecular chemical reactions and show its equivalence with the…”
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Effective dispersion coefficients for the upscaling of pore-scale mixing and reaction by Puyguiraud, Alexandre, Perez, Lazaro J., Hidalgo, Juan J., Dentz, Marco

“…•Definition and quantification of effective dispersion for pore-scale mixing.•Dispersive lamella approach based on effective dispersion upscales and predicts…”
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Behavior of weak type bounds for high dimensional maximal operators defined by certain radial measures by Aldaz, J. M., Pérez Lázaro, J.

“…As shown in Aldaz (Bull. Lond. Math. Soc. 39:203–208, 2007), the lowest constants appearing in the weak type (1, 1) inequalities satisfied by the centered…”
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Boundedness and unboundedness results for some maximal operators on functions of bounded variation by Aldaz, J.M., Pérez Lázaro, J.

“…We characterize the space BV ( I ) of functions of bounded variation on an arbitrary interval I ⊂ R , in terms of a uniform boundedness condition satisfied by…”
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Assessment and Prediction of Pore‐Scale Reactive Mixing From Experimental Conservative Transport Data by Perez, Lazaro J., Hidalgo, Juan J., Puyguiraud, Alexandre, Jiménez‐Martínez, Joaquín, Dentz, Marco

“…We investigate the impact of pore‐scale heterogeneity on reactive mixing using experimental data from inert fluid‐fluid displacement in a quasi 2‐D porous…”
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Upscaling Mixing-Controlled Reactions in Unsaturated Porous Media by Perez, Lazaro J., Puyguiraud, Alexandre, Hidalgo, Juan J., Jiménez-Martínez, Joaquín, Parashar, Rishi, Dentz, Marco

“…We study mixing-controlled chemical reactions in unsaturated porous media from a pore-scale perspective. The spatial heterogeneity induced by the presence of…”
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Work, career satisfaction, and the position of general internists in the south of Spain by Bernabeu-Wittel, Máximo, García-Morillo, Salvador, Pérez-Lázaro, Juan J., Rodríguez, Inmaculada Mateo, Ollero, Manuel, Calderón, Enrique, González, Miguel A., Cuello, José A.

“…A progressive dissatisfaction has been noted among many internists, and the future of the specialty represents a matter of concern. The objectives of this…”
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On Gagliardo–Nirenberg Type Inequalities by Kolyada, V. I., Pérez Lázaro, F. J.

“…We present a Gagliardo–Nirenberg inequality which bounds Lorentz norms of a function by Sobolev norms and homogeneous Besov quasinorms with negative…”
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Impact of confined geometries on hopping and trapping of motile bacteria in porous media by Perez, Lazaro J, Bhattacharjee, Tapomoy, Datta, Sujit S, Parashar, Rishi, Sund, Nicole L

“…We use a random walk particle-tracking (RWPT) approach to elucidate the impact of porous media confinement and cell-cell interactions on bacterial transport…”
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Effectiveness assessment of otosclerosis surgery by Pérez-Lázaro, J. J., Urquiza, R., Cabrera, A., Guerrero, C., Navarro, E.

“…Conclusions.The epidemiological characteristics of otosclerosis and its treatment in Andalusia resemble those of other populations with similar socioeconomic…”
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