Results 31 to 40 of about 29,233 (164)
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 +5 more
wiley +1 more source
Reacción a la radiación: Aspectos clásicos y cuánticos de la radiación sincrotrón [PDF]
, 2012 El movimiento de partículas cargadas en campos externos incluye necesariamente la emisión de radiación cuando las cargas son aceleradas. La radiación emitida lleva energía, momento lineal y angular, y de este modo debe influir en el movimiento posterior ...
Roa González, Iván René
core
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 +3 more
doaj +1 more source
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 +6 more
wiley +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 +9 more
wiley +1 more source
Biomonitoreo genético en población expuesta a radiación ionizante
, 2009 Los efectos que produce la exposición a bajas dosis de radiación ionizante de forma crónica son controversiales. Por lo que el objetivo de este trabajo es evaluar el daño que provoca la radiación ionizante en radiólogos a través de un monitoreo genético.
Sarmiento Gallegos, María Isabel
core +1 more source
Oncología, 2021 Introducción: El hipofraccionamiento moderado (hRt) en cáncer de próstata, consisten en disminuir el tiempo total de tratamiento con radioterapia, lo que mejora la adherencia terapéutica y optimiza recursos tecnológicos.
Andrés Imbaquingo Cabrera +4 more
doaj +1 more source
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 +19 more
wiley +1 more source
Latitudinal variation rate of geomagnetic cutoff rigidity in the active Chilean convergent margin [PDF]
Annales Geophysicae, 2018 We present a different view of secular variation of the Earth's magnetic field, through the variations in the threshold rigidity known as the variation rate of geomagnetic cutoff rigidity (VRc).
E. G. Cordaro +5 more
doaj +1 more source
It is cool to be clear: Transparency induces a thermal cost in clearwing butterflies
Functional Ecology, Volume 39, Issue 9, Page 2452-2464, September 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract In butterflies, wing transparency raises the question of potential costs for vital functions, such as thermoregulation. The thermal melanism hypothesis posits that darker colorations enable higher absorption of solar radiation, leading to the prediction that such ...
Violaine Ossola +8 more
wiley +1 more source