Results 31 to 40 of about 179,235 (166)

Análisis sobre la influencia de la densidad en la termografía de infrarrojos y el alcance de esta técnica en la detección de defectos internos en la madera [PDF]

, 2012
This paper shows the results of a laboratory phase for the determination of the 1limits of infrared thermography in detecting internal defects in wood and, furthermore, it analyses how the density of this material can influence the surface ...
Morales Conde, María Jesús, Pérez Gálvez, Filomena, Rodríguez-Liñán, Carmen, Rubio de Hita, Paloma   +3 more
core   +3 more sources

Unraveling the Phenology of the Liana Marcgravia longifolia: Temporal Patterns and Climatic Cues

Biotropica, Volume 58, Issue 2, March 2026.
We monitored the reproductive phenology of the Amazonian liana Marcgravia longifolia J. F. Macbr (Marcgraviaceae) for 84 consecutive months in the Peruvian Amazon to quantify the timing, synchrony, and seasonality of flowering and ripe fruiting. Flower presence peaked in August with intermediate synchrony, while ripe fruit presence peaked in November ...
Alessandro Mainardi, Sarina Thiel, Katrin Heer, Eckhard W. Heymann, Ney Shahuano Tello, Urs Kalbitzer   +5 more
wiley   +1 more source

Radiaciones ionizantes y efectos sobre la materia

Ciencia e Ingeniería Neogranadina, 2002
Las radiaciones ionizantes, además, de tener muchas aplicaciones benéficas tanto en el campo industrial como en los organismos vivientes, presentan también muchos efectos nocivos que se deben evitar, sobre todo cuando se trata de fuentes artificiales con
Sandra Magaly Medina Araujo, Pedro Julio Reyes Torres   +1 more
doaj   +1 more source

Efecto de la radiación ultravioleta sobre los ecosistemas acuáticos [PDF]

, 1998
Hasta hace poco tiempo se consideraba que la radiación ultravioleta carecía de importancia como factor ambiental en los ecosistemas acuáticos, ya que se suponía que se absorbía totalmente en los primeros centímetros de la columna de agua.
Cravero, W.R., Helbling, W., Villafane, V., Zagarese, H.E.   +3 more
core  

Evolution of research on global amphibian declines

Conservation Biology, Volume 40, Issue 1, February 2026.
Abstract In the late 1980s, the scientific community became aware of severe, enigmatic amphibian population declines. These declines triggered a wave of research focused on quantifying their extent and identifying key drivers. We used text‐analysis techniques, including topic modeling and geoparsing, to examine the evolution of research focused on ...
Jordann Crawford‐Ash, Maldwyn John Evans, Tamilie Carvalho, Jodi J. L. Rowley, Trenton W. J. Garner, Erin Muths, Ben C. Scheele   +6 more
wiley   +1 more source

Effects of clouds on the radiative heat exchange in the atmosphere.

Geofísica Internacional, 1975
Las nubes son los principales reguladores del flujo radiativo. A su vez las nubes mismas están sujetas a efectos directos e indirectos de la radiación. Los efectos directos se producen mediante absorción y emisión de radiación por las nubes.
E. M. Feigelson, A.S. Ginzburg, L. D. Krasnokutskaya, V. K. Petoukhov   +3 more
doaj   +1 more source

The frequency and importance of polyploidy in tropical rainforest tree radiations

New Phytologist, Volume 249, Issue 4, Page 2103-2114, February 2026.
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Rowan J. Schley, Rosalía Piñeiro, James A. Nicholls, Michelle L. Gaynor, Gwilym P. Lewis, Flávia Fonseca Pezzini, Kyle G. Dexter, Catherine Kidner, R. Toby Pennington, Alex D. Twyford   +9 more
wiley   +1 more source

SREQP: A Solar Radiation Extraction and Query Platform for the Production and Consumption of Linked Data from Weather Stations Sensors

Journal of Sensors, Volume 2016, Issue 1, 2016., 2016
Nowadays, solar radiation information is provided from sensors installed in different geographic locations and platforms of meteorological agencies. However, common formats such as PDF files and HTML documents to provide solar radiation information do not offer semantics in their content, and they may pose problems to integrate and fuse data from ...
José Luis Sánchez-Cervantes, Mateusz Radzimski, Cristian Aaron Rodriguez-Enriquez, Giner Alor-Hernández, Lisbeth Rodríguez-Mazahua, Cuauhtémoc Sánchez-Ramírez, Alejandro Rodríguez-González, Nick Chaniotakis   +7 more
wiley   +1 more source

Antenas ópticas y detectores de luz [PDF]

, 2005
La investigación sobre el comportamiento de estructuras metálicas cuyo tamaño es comparable a la longitud de onda de la radiación detectada puede realizarse considerándolas como antenas detectoras de radiación óptica.
Alda, Javier, Boreman, Glenn, López-Alonso, José Manuel, Rico-García, José María   +3 more
core  

A new phylogeny of Anastrepha (Diptera: Tephritidae) based on nuclear loci obtained by phylogenomic methods

Systematic Entomology, Volume 51, Issue 1, January‐March 2026.
We present an extensive phylogenetic analysis, based on 293 nuclear loci and 728 individuals representing 237 species of Anastrepha, the largest and most economically important New World genus of Tephritidae. The analysis strongly supports the monophyly of most Anastrepha species groups, also revealing previously unknown relationships among species and
Allen L. Norrbom, Erick J. Rodriguez, Gary J. Steck, Brian K. Cassel, Raul Ruiz‐Arce, Alies Muller, Anielkoemar Gangadin, Marcoandre Savaris, Norma Nolazco, Henry Troya, Pablo Rodriguez, Yahaira Peñaloza Barria, Josué Madriz Picado, Pedro Alexander Rodriguez Clavijo, Matthew R. Moore, Marc Branham, Bruce D. Sutton, Tyler Raszick, Escher Cattle, Brian M. Wiegmann   +19 more
wiley   +1 more source