Daniel Rodríguez Pérez

Bellvitge University Hospital

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J. C. Antoranz

National University of Distance Education

Oscar Sotolongo-Costa

University of Havana

ÓS

Óscar Sotolongo‐Grau

Fundació ACE

Noela Sánchez‐Carnero

Universidade de Vigo

Manuel Desco

Universidad Carlos III de Madrid

Javier Bermejo

Hospital General Universitario Gregorio Marañón

Yoel Beovides García

Instituto de Investigaciones en Fruticultura Tropical

Raquel Yotti

Hospital General Universitario Gregorio Marañón

Francisco Fernández‐Avilés

Universidad Complutense de Madrid

Yolanda Benito

Universidad Complutense de Madrid

Cooperative Institutions

Hospital General Universitario Gregorio Marañón

Instituto de Investigaciones en Fruticultura Tropical

Universidad Complutense de Madrid

Clínica Santa María

Institute for Social Security and Services for State Workers

National University of Distance Education

Instituto Nacional de Psiquiatría

Universidad Nacional Autónoma de México

Instituto de Salud Carlos III

Istituti di Ricovero e Cura a Carattere Scientifico

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GACETA ILUSTRADA: EXPERIMENTO GRÁFICO. DIBUJO. HORA DE ESTUDIO. PREGUNTAS Y RESPUESTAS. ESGRIMA

Gaceta UNAM (2000-2009) (2008)

Daniel Rodríguez Pérez David Sánchez Ruano Raúl Correa

GACETA ILUSTRADA PRESENTA: EXPERIMENTO GR FICO. EN LOS FRONTONES. - DIBUJO. PERSPECTIVA DEL CAMPUS. - HORA DE ESTUDIO. EN CIENCIAS POLITICAS. - PREGUNTAS Y RESPUESTAS. EN LA PREPA 5. - ESGRIMA. EN PREPA 9. LAS IM GENES SON DE MARCO MIJARES, JUAN ANTONIO LOPEZ, JUSTO SU REZ Y FERNANDO VEL ZQUEZ.

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Analysis of the behaviour of soybean commercial varieties in North Western Argentina.

Revista industrial y agrícola de Tucumán (2009)

José Ricardo Gutiérrez Sánchez Mario R. Devani Fernando Ledesma Daniel Rodríguez Pérez Daniel Gamboa

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Contents, vol. 50, Supplement 2, 1986

Respiration (1986)

S. Bianco S. Bianco Stephen C. Lazarus Sven‐Erik Dahlén Maria Kumlin

10.1159/000195095

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The surgical treatment of cicatricial strictures of the esophagus.

PubMed (1951)

Daniel Rodríguez Pérez

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Importancia de la testosterona libre calculada en el diagnóstico del síndrome de déficit de testosterona

Revista Internacional de Andrología (2010)

J. Rodríguez Tolrá Arturo Domínguez García J. Torremadé Barreda Daniel Rodríguez Pérez Eladio Franco Miranda

10.1016/s1698-031x(10)70016-9

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Age-Dependence of Flow Homeostasis in the Left Ventricle

Frontiers in Physiology (2019)

Yolanda Benito Pablo Martínez‐Legazpi Lorenzo Rossini Candelas Pérez del Villar Raquel Yotti

Background: Intracardiac flow homeostasis requires avoiding blood stasis and platelet activation during its transit through the cardiac chambers. However, the foundations of intraventricular blood washout and its exposure to shear stresses have been poorly addressed. We aimed to characterize and quantify these features in a wide population of healthy subjects and assess the relationships of these indices with age. Methods: We used color-Doppler echocardiography and custom post-processing methods to study 149 healthy volunteers from 26 days to 80 years old. From the intraventricular flow-velocity fields we obtained personalized maps of (1) the residence time of blood in the LV, and (2) the shear index, a metric accounting for the strongest occurrence of shear stresses inside the chamber. From these maps we derived quantitative indices of the overall intraventricular blood washout and shear exposure. We addressed the age-dependence of these indices and analyzed their relationship with age-related changes in filling-flow. Results: The entire intraventricular blood pool was replaced before 8 cycles. Average residence time of blood inside the LV was <3 cycles in all subjects and followed an inverse U-shape relationship with age, increasing from median (IQR) of 1.0 (0.7 to 1.2) cycles in the 1st year of life to 1.8 (1.4-2.2) cycles in young adults (17-30 years old), becoming shorter again thereafter. Shear index showed no relation with age and was bounded around 20 dyn·s/cm2. Regions with the longest residence time and highest shear index were identified near the apex. Differences in the degree of apical penetration of the filling waves and the duration of the late-filling phase explained the age-dependence of residence time ( Radj2 = 0.48, p < 0.001). Conclusions: In average, blood spends 1 to 3 beats inside the LV with very low shear stress rates. The apical region is the most prone to blood stasis, particularly in mid-aged adults. The washout of blood in the normal LV is age-dependent due to physiological changes in the degree of apical penetration of the filling waves.

10.3389/fphys.2019.00485

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Tissue Radiation Response with Maximum Tsallis Entropy

Physical Review Letters (2010)

Óscar Sotolongo‐Grau Daniel Rodríguez Pérez J. C. Antoranz Oscar Sotolongo-Costa

The expression of survival factors for radiation damaged cells is currently based on probabilistic assumptions and experimentally fitted for each tumor, radiation, and conditions. Here, we show how the simplest of these radiobiological models can be derived from the maximum entropy principle of the classical Boltzmann-Gibbs expression. We extend this derivation using the Tsallis entropy and a cutoff hypothesis, motivated by clinical observations. The obtained expression shows a remarkable agreement with the experimental data found in the literature.

Tsallis entropy

Cut-off

Expression (computer science)

Boltzmann constant

10.1103/physrevlett.105.158105

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A statistical model of pollution-caused pulmonary crises

Lecture notes in computer science (2003)

Daniel Rodríguez Pérez José L. Castillo J. C. Antoranz

10.1007/3-540-44868-3_47

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Contribución al estudio de la formación de depósitos de partículas submicrónicas mediante técnicas de simulación discreta

Daniel Rodríguez Pérez

Los depositos de particulas cuyo transporte viene descrito por la ecuacion de conveccion difusion, presentan una densidad variable, dependiente de cual de estos dos mecanismos es mas importante. La importancia relativa se describe por el numero adimensional de Peclet (Pe). En el caso puramente difusivo(Pe=0), los depositos son fractales; su densidad disminuye con la distancia a la superficie de depositos. Estos depositos, son ademas muyn ramificados y su rugosidad aumenta con el tiempo segun una ley de potencias. En el caso balistico (Pe=infinito), la densidad de los depositos no varia con la altura. Sin embargo, la rugosidad de la interfase crece con el tiempo tambien segun una ley de potencias. El objetivo de esta tesis es describir como cambia la estructura de los depositos desde la ramificada fractal hasta la compacta, segun aumenta el numero de Peclet. En primer lugar, se elaboran dos modelos prbabilisticos de movimiento, cenidos a una malla cubica, compatibles con la ecuacion de conveccion-difusion, segun la interpretacion estadistica de esta. Uno de ellos, basado en el concepto de probabilidades de transicion entre celdas, esta limitado a numeros de Peclet bajos (Pe mayor 4). El otro ees la validez general, y el algoritmo separa cada paso temporal en una etapa convectiva y otra difusiva. En segundo lugar, se generan depositos de particulas simulados y se caracteriza su perfil de densidades, cuantificado por la densidad media que depende del numero de Pelet. Esta dependencia se interpreta en terminos de un modelo de fractalidad local, introduciendo una escala caracteristica del orden de 1+A/Pe (A es un parametro de orden unidad). Esta interpretacion viene avalada por el colapso de las curvas de conteo pot cajas y delas curvas de perfil de densidades, al referirlas a dicha escala.

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A comparison of spectral macroalgae taxa separability methods using an extensive spectral library

Algal Research (2017)

Y. Chao Rodríguez José Antonio Domínguez Noela Sánchez‐Carnero Daniel Rodríguez Pérez

Spectral signature

Absorbance

Brown algae

10.1016/j.algal.2017.04.021

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