Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Juan Valenzuela"'
Publikováno v:
Revista Educación, Vol 47, Iss 1, Pp 1-16 (2023)
El objetivo del presente estudio es identificar los estilos de aprendizaje del estudiantado de primer año de la carrera de Técnicos de nivel superior en Enfermería, con el propósito de discutir su importancia y utilidad en la dimensión didáctic
Externí odkaz:
https://doaj.org/article/20ec03cc0a0049f494904a048472a6f4
Autor:
Robinson Ramírez-Vélez, José Francisco López-Gil, Héctor Gutiérrez Espinoza, Felipe Araya-Quintanilla, Sebastian Pinto-Concha, Juan Valenzuela-Fuenzalida
Publikováno v:
BMJ Open Sport & Exercise Medicine, Vol 9, Iss 3 (2023)
Objectives Current evidence on the clinical effectiveness about the different types of exercises in the subacromial impingement syndrome (SIS) remains controversial. This study aims to compare the short-term (at 5 weeks) effects of a specific exercis
Externí odkaz:
https://doaj.org/article/6a576515368b49ea8728ee3c493b02cc
Autor:
Vishal Raval, Elaine Binkley, Mary E. Aronow, Juan Valenzuela, David M. Peereboom, Wei Wei, Sunil Srivastava, Jaqueline Davanzo, Herbert Culver Boldt, Mark P. McGarrey, George N. Papaliodis, Lucia Sobrin, Ivana K. Kim, Dimitrios G. Vavvas, Dean Eliott, Lakshmi Nayak, Emilio Dodds, Francisco Marco del Pont, Arun D. Singh
Publikováno v:
eJHaem, Vol 3, Iss 2, Pp 362-370 (2022)
Abstract There is limited understanding of the inter‐compartmental progression and treatment outcomes of primary central nervous system lymphoma (PCNSL). In this multicenter retrospective cohort study on 234 patients with PCNSL (median age: 62.5 ye
Externí odkaz:
https://doaj.org/article/be506312b9b24579ace478741d438474
Autor:
Cleofas Segura-Gomez, Angel Palomares-Caballero, Antonio Alex-Amor, Juan Valenzuela-Valdes, Pablo Padilla
Publikováno v:
IEEE Access, Vol 8, Pp 158568-158578 (2020)
This article presents a modular substrate-integrated waveguide (SIW) antenna array based on H-plane aperture structures for Ka-band. The unitary antenna is based on a SIW aperture antenna with an improved H-plane radiation pattern by means of the imp
Externí odkaz:
https://doaj.org/article/cbb8d4ce05844dd79ce49985afa23bcb
Autor:
Angel Palomares-Caballero, Antonio Alex-Amor, Pablo Padilla, Francisco Luna, Juan Valenzuela-Valdes
Publikováno v:
IEEE Access, Vol 7, Pp 31297-31304 (2019)
This paper presents a compact and low-loss V-band waveguide phase shifter based on glide-symmetric pin configuration. This kind of higher symmetry permits the control and improvement of the electromagnetic behavior or radiofrequency devices, as it is
Externí odkaz:
https://doaj.org/article/ab919d44c691418cb14aa6d056f2e866
Autor:
Antonio Alex-Amor, Adrian Tamayo-Dominguez, Angel Palomares-Caballero, Jose M. Fernandez-Gonzalez, Pablo Padilla, Juan Valenzuela-Valdes, Antonio Palomares
Publikováno v:
IEEE Access, Vol 7, Pp 14883-14893 (2019)
This paper presents an analytical expression that models the tilt angle of directors in a nematic liquid crystal (LC), depending on its elastic properties, its dielectric anisotropy, and the quasi-static electric field applied. The analytical solutio
Externí odkaz:
https://doaj.org/article/60b048e4ff9545c3ab2919369dc77037
Autor:
Ángel Palomares-Caballero, Pablo Padilla, Antonio Alex-Amor, Juan Valenzuela-Valdés, Oscar Quevedo-Teruel
Publikováno v:
Symmetry, Vol 11, Iss 3, p 349 (2019)
Here we propose the use of twist and glide symmetries to increase the equivalent refractive index in a helical guiding structure. Twist- and glide-symmetrical distributions are created with corrugations placed at both sides of a helical strip. Combin
Externí odkaz:
https://doaj.org/article/d4531e305d954fbfb00ba2a600eea9fd
Publikováno v:
Revista de Ciencias Sociales, Vol 17, Iss 2, Pp 262-273 (2011)
La gestión de los centros educativos es uno de los elementos relevantes a la hora de explicar la mejora en la calidad y la equidad en la educación. En Chile se ha puesto atención a una serie de variables tales como liderazgo, gestión curricular,
Externí odkaz:
https://doaj.org/article/c977c0356aef4e20ae0c795664112601
Publikováno v:
Maderas: Ciencia y Tecnología, Vol 5, Iss 2, Pp 117-124 (2003)
El objetivo general de este estudio, fue medir el ángulo fibrilar y establecer su relación con la edad, en árboles de Pinus radiata (D.DON.). Se escogieron aleatoriamente cinco árboles, a los cuales se les extrajeron rodelas a la altura del DAP,
Externí odkaz:
https://doaj.org/article/a808e1f377d14ec5a2b03c9a32390b6b
Autor:
Francisco Porcel-Rodríguez, Juan Valenzuela-Valdés, Pablo Padilla, Francisco Luna-Valero, Rafael Luque-Baena, Miguel Ángel López-Gordo
Publikováno v:
Sensors, Vol 16, Iss 8, p 1334 (2016)
Energy efficiency is a critical issue for wireless sensor networks (WSNs) as sensor nodes have limited power availability. In order to address this issue, this paper tries to maximize the power efficiency in WSNs by means of the evaluation of WSN nod
Externí odkaz:
https://doaj.org/article/234f17c66d424612aaa25f223145a557