Zobrazeno 1 - 10
of 606
pro vyhledávání: '"Manuel Sierra"'
Autor:
Aral Ertug Zorkun, Miguel A. Salas-Natera, Alvaro Araujo Pinto, Ramon Martinez Rodriguez-Osorio, Manuel Sierra Perez
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 4, Pp 1026-1040 (2024)
This paper proposes a mutual coupling based self-calibration method for transmit mode large scale antenna arrays. In accord with the proposed active antenna array model, gain/phase uncertainties, antenna element position errors and mutual coupling ef
Externí odkaz:
https://doaj.org/article/6c5dcd1bf96342a298d7c5c60ee4484b
Autor:
Antonio Aguilar-Garrido, Mario Paniagua-López, Manuel Sierra-Aragón, Francisco Javier Martínez Garzón, Francisco José Martín-Peinado
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract Acid mine drainage (AMD) poses serious consequences for human health and ecosystems. Novel strategies for its treatment involve the use of wastes. This paper evaluates the remediation potential of wastes from urban, mining and agro-industria
Externí odkaz:
https://doaj.org/article/21f7c253125148b68ccaa8a35fd70925
Publikováno v:
Therapeutic Advances in Infectious Disease, Vol 10 (2023)
Externí odkaz:
https://doaj.org/article/b3833044aac94228ba575e5d7fead04a
Autor:
Antonio Aguilar-Garrido, Ana Romero-Freire, Mario Paniagua-López, Francisco Javier Martínez-Garzón, Francisco José Martín-Peinado, Manuel Sierra-Aragón
Publikováno v:
Toxics, Vol 11, Iss 10, p 854 (2023)
This study evaluated the effectiveness of six Technosols designed for the remediation of polluted soils (PS) by metal(loid)s at physicochemical, biological, and ecotoxicological levels and at a microcosm scale. Technosols T1–T6 were prepared by com
Externí odkaz:
https://doaj.org/article/a4c4ba4eebdc43198029d4150c06a14d
Autor:
Mariel Eunice Amador Rosa, Alejandra Lozano Bustillo, Iván Espinoza Salvadó, Manuel Sierra, Belinda Rivera
Publikováno v:
Journal of Ophthalmic & Vision Research, Vol 17, Iss 2, Pp 225-232 (2022)
Abstract Purpose: To describe the prevalence and causes of avoidable blindness in people aged 50 and over in the areas of influence of doctors in social service during the years 2018–2019. Methods: This observational, descriptive, cross-sectional s
Externí odkaz:
https://doaj.org/article/1716e254337b40589c570b0b10f74e2c
Autor:
Eleonora Espinoza-Turcios, René Mauricio Gonzales-Romero, Carlos Sosa-Mendoza, Manuel Sierra-Santos, Henry Noel Castro-Ramos, Lysien Ivania Zambrano, José Armada, Christian R. Mejía
Publikováno v:
Frontiers in Psychiatry, Vol 14 (2023)
IntroductionThe mental health of the population has been affected by COVID-19, reporting in many populations higher levels of depressive, anxious and stress symptoms, however, in Honduras there are no studies showing the impact of COVID-19 on the men
Externí odkaz:
https://doaj.org/article/3a9ab37b65fe4bcc9f9280ad15439ba8
Autor:
Estela Pineda, Jarmanjeet Singh, Miguel Vargas Pineda, Jose Garay Umanzor, Fernando Baires, Luis G. Benitez, Cesar Burgos, Anupamjeet Kaur Sekhon, Nicole Crisp, Anita S. Lewis, Jana Radwanski, Marco Bermudez, Karen Sanchez Barjun, Oscar Diaz, Elsa Palou, Rossany E. Escalante, Carlos Isai Hernandez, Mark L. Stevens, Deke Eberhard, Manuel Sierra, Tito Alvarado, Omar Videa, Miguel Sierra-Hoffman, Fernando Valerio-Pascua
Publikováno v:
Frontiers in Pharmacology, Vol 13 (2022)
Background: The COVID-19 pandemic has impacted millions of lives globally. While COVID-19 did not discriminate against developed or developing nations, it has been a significant challenge for third world countries like Honduras to have widespread ava
Externí odkaz:
https://doaj.org/article/b11a760a41574227a5c1a8d50e592e28
Publikováno v:
Toxics, Vol 11, Iss 6, p 536 (2023)
Soil is an essential natural resource because of the ecosystem services it carries out in the terrestrial ecosystem: the provision of food, fibre and fuel; habitats for organisms; nutrient cycling; climate regulation and carbon sequestration; water p
Externí odkaz:
https://doaj.org/article/a295d30a1ef34523bd87885d26dfb4d5
Autor:
D. Katterine Bonilla-Aldana, Erwin J. Gutiérrez-Grajales, J. Paola Martínez-Arboleda, María Angelica Reina-Mora, Adrián E. Trejos-Mendoza, Soffia Pérez-Vargas, Lorenzo Valencia-Mejía, Luisa F. Marín-Arboleda, Daniela Osorio-Navia, Mariana Chacón-Peña, Luz Victoria González-Colonia, Jaime A. Cardona-Ospina, Erika Vanessa Jiménez-Posada, Andrés Diaz, Jean Carlos Salazar, Manuel Sierra, Fausto Muñoz-Lara, Lysien I. Zambrano, Eduardo Ramírez-Vallejo, Juan Camilo Álvarez, Ingrid Lorena Jaramillo-Delgado, Samuel Pecho-Silva, Alberto Paniz-Mondolfi, Álvaro A. Faccini-Martínez, Alfonso J. Rodríguez-Morales
Publikováno v:
Parasite Epidemiology and Control, Vol 17, Iss , Pp e00249- (2022)
Background: Tick-borne diseases (TBD) and dirofilariosis are currently not under surveillance in most Latin American countries. In addition, there is a significant lack of studies describing the current situation in most endemic areas, including Colo
Externí odkaz:
https://doaj.org/article/bb93942862a64f9fb3b278e356cdbfdf
Autor:
Alfonso Tomas Muriel-Barrado, Jorge Calatayud-Maeso, Antonio Rodriguez-Gallego, Pablo Sanchez-Olivares, Jose Manuel Fernandez-Gonzalez, Manuel Sierra-Perez
Publikováno v:
IEEE Access, Vol 9, Pp 63752-63766 (2021)
In this paper, a planar active phased array antenna demonstration with linear polarization (LP) at Ka Band (28-30 GHz) is presented. The proof of concept is carried out to evaluate the possible problems that may arise, to analyze possible calibration
Externí odkaz:
https://doaj.org/article/ac267692c3d041439749467a5f3fc28d