Results 71 to 80 of about 257,749 (205)

Una polémica sobre la fototerapia. La aportación de un oftalmólogo español

Asclepio: Revista de Historia de la Medicina y de la Ciencia, 1997
El Dr. Morón Salas ensayó experimentalmente la utilización de la luz como terapéutica para fotocoagulación del fondo de ojo. Sus primeras experiencias comienzan en 1945, culminando con la defensa de su tesis doctoral.
Diego Peral, Jesús Fernández-Sabugal
doaj   +1 more source

Metallicities and Radial Velocities of Five Open Clusters Including a New Candidate Member of the Monoceros Stream

, 2008
Near infrared spectra of 133 red giant stars from ten Galactic open clusters and two Galactic globular clusters spanning 2.2 dex in metallicity and 11 Gyr in age are presented.
Alcaino, Andrew A. Cole, Anthony-Twarog, Aparicio, Aparicio, Armandroff, Battaglia, Bragaglia, Bragaglia, Burkhead, Cannon, Carollo, Carpenter, Carraro, Carraro, Carraro, Carrera, Carretta, Carretta, Carretta, Cole, Cole, Cole, Delgado, Dias, Dias, Dutra, Ferraro, Friel, Friel, Friel, Frinchaboy, Gim, Gratton, Gratton, Grocholski, Grocholski, Harris, Harris, Hartmann, Helmi, Ibata, Jacobsen, Jacobson, Jones, Jørgensen, Kałużny, Kałużny, Kharchenko, Kraft, Lee, Lyngå, MacMinn, Martin, Mermilliod, Milone, Newberg, Olszewski, Osterbrock, Peñarrubia, Pont, Robin, Rocha-Pinto, Rocha-Pinto, Rutledge, Rutledge, Sagar, Salaris, Salaris, Salaris, Sanders, Schlegel, Scott, Skrutskie, Soderberg, Stetson, Stetson, Steven R. Warren, Suntzeff, Tadross, Tautvaišienė, Tonry, Twarog, van Helshoecht, Wakker, Xu, Yanny, Yong, Yong, Younger, Zinn   +90 more
core   +2 more sources

Inter‐Solar‐Cycle Variability of Extreme Geomagnetic Storms

Space Weather, Volume 23, Issue 11, November 2025.
Abstract The occurrence of extreme space weather events, and, in particular, severe geomagnetic storms, while rare, can result in disproportionately large societal consequences. Accurate estimates of their likelihood over the timescale of a solar cycle or longer can provide crucial and actionable information for policymakers.
Pete Riley, M. Ben‐Nun
wiley   +1 more source

Bacterial Control of Metabolic Balance in the Sargasso Sea Near Bermuda: Insights From Data‐Assimilative Biogeochemical Modeling

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 10, October 2025.
Abstract Heterotrophic marine bacteria are key players in the ocean carbon cycle. However, their exact contributions to net community production (NCP)—a crucial metric for the biological pump that indicates the metabolic balance and sets the upper limit for carbon export—remain unquantified due to limited bacterial integration in ocean biogeochemical ...
Heather H. Kim, Shun Mao, Kevin M. Archibald, Jens Terhaar, Rhegan M. Thomason   +4 more
wiley   +1 more source

Beneficiaries’ satisfaction of the Distintivo Soludable Ecuador Project

Medisur
Foundation: excessive exposure to the sun can be harmful to health; it increases the risk of sunburn, causes premature aging and skin cancer.Objectives: to determine the beneficiaries’ knowledge and satisfaction with the policies on photoprotection ...
Angélica Salomé Herrera Molina, Jimena Alexandra Morales Guaraca, Paola Maricela Machado Herrera, Carlos Gafas González, Valeria del Rocío Moya Amaguaya, Jacobo Cambil Martín   +5 more
doaj  

El sol como inspiración del diseño biomimético

Arquitecno, 2018
La vida sobre la Tierra depende de la luz solar. El sol de manera directa o indirecta es la fuente de energía de la que derivan todas las demás.  La fotosíntesis es el proceso por el cual las plantas verdes y ciertas algas y bacterias toman dióxido de ...
Claudia A. Pilar
doaj   +1 more source

INFLUENCIA DE FACTORES MORFOLÓGICOS Y AMBIENTALES SOBRE EL CRECIMIENTO EN DIÁMETRO DE Caesalpinia gaumeri Greenm EN UN BOSQUE TROPICAL CADUCIFOLIO, EN MÉXICO

Revista Chapingo: Serie Ciencias Forestales y del Ambiente, 2014
Caesalpinia gaumeri Greenm es una especie de gran importancia económica en la selva baja caducifolia del sureste de México. La madera de esta especie es utilizada como poste en las construcciones rurales.
Víctor M. Interián-Ku, Humberto Vaquera-Huerta, Juan I. Valdez-Hernández, Edmundo García-Moya, Angélica Romero-Manzanares, Amparo Borja-De la Rosa   +5 more
doaj  

Uma viagem através da Luz [PDF]

, 2010
Texto de apresentação da obra «Viagem Através da Luz», da autoria de Vieira Calado, efectuada na livraria Pátio das Letras, em Faro, a 18-01-2010Este livro gira em torno duma espécie de viagem cósmica impulsionada à velocidade da luz pela força da ...
Mesquita, José Carlos Vilhena
core  

The UK Infrared Telescope M33 monitoring project. I. Variable red giant stars in the central square kiloparsec

, 2010
We have conducted a near-infrared monitoring campaign at the UK InfraRed Telescope (UKIRT), of the Local Group spiral galaxy M33 (Triangulum). The main aim was to identify stars in the very final stage of their evolution, and for which the luminosity is ...
Javadi, Atefeh, Mirtorabi, Mohammad Taghi, van Loon, Jacco Th.   +2 more
core   +1 more source

Effect of sunlight regimes on growth and yield of piquin pepper (Capsicum annuum L. var. aviculare)

Revista Chapingo Serie Horticultura, 2005
Se estudió el efecto de cuatro tratamientos de incidencia de luz solar (todo el día, sólo por la mañana, sólo por la tarde, y todo el día bajo sombra) sobre el desarrollo y rendimiento del chile piquín (Capsicum annuum L. var.
L. A. Rodríguez-del Bosque, R. Sánchez-de la Cruz, M. M. Silva-Serna   +2 more
doaj