Results 11 to 20 of about 222 (162)
Automated identification of diverse Neotropical pollen samples using convolutional neural networks
Methods in Ecology and Evolution, Volume 13, Issue 9, Page 2049-2064, September 2022., 2022 Abstract Pollen is used to investigate a diverse range of ecological problems, from identifying plant–pollinator relationships to tracking flowering phenology. Pollen types are identified according to a set of distinctive morphological characters which are understood to capture taxonomic differences and phylogenetic relationships among taxa.
Surangi W. Punyasena +4 more
wiley +1 more source
Dominancia Vascular en la Mano: Estudio Dinámico de Flujos
Revista Iberoamericana de Cirugía de la Mano, 2017 Resumen Introducción Mediante estudios anatómicos estáticos, se ha establecido durante años, que la arteria cubital es dominante para la irrigación de la mano en un 80% de los casos. Sin embargo, estudios anatómico-radiológicos más recientes,
Carlos Eduardo Torres Fuentes +1 more
doaj +1 more source
Ultrasound-guided radial artery cannulation: A report of a simple and low-cost model for training
Educación Médica, 2023 Introduction: Practicing models for invasive procedure have proven useful in achieving better rates of success for physicians in training. Often, these models are not easy to get because of its expensive price.
Alejandro Sierra-González de Cossio +7 more
doaj +1 more source
Ordenamiento y solución de flujos de carga en sistemas radiales
Ingeniería e Investigación, 1986 En estudios de planeación y operación de sistemas de distribución, es necesario efectuar gran cantidad de estudios de reparto de carga, corto circuito y análisis de contingencias entre otros, de aquí que es muy importante para el ahorro de tiempo y memoria de cómputo, como también para la confiabilidad de la solución el empleo de algoritmos adecuados ...
Florez C., Lucio +3 more
openaire +4 more sources
Journal of Animal Ecology, Volume 89, Issue 11, Page 2631-2643, November 2020., 2020 The authors demostrate how climate interacts with local demography to determine population fitness and viability. The mechanistic approach taken allowed us to unravel the cascading effects of the annual fluctuations of a major climatic phenomenon over the Atlantic on the vital rates of a wild bird population, and provided the first evidence of wind as ...
Laura Gangoso +7 more
wiley +1 more source
Flujo de potencia óptimo para redes radiales y enmalladas empleando programación semidefinida
TecnoLógicas, 2017 Este artículo presenta una formulación convexa para el problema de flujo de potencia óptimo (Optimal Power Flow-OPF) en sistemas de potencia radiales y enmallados, a través de un modelo matemático basado en programación semidefinida (Semidefinite Programming-SDP), el cual trasforma el modelo cuadrático no convexo del OPF en un modelo convexo relajado ...
Montoya-Giraldo, Oscar D. +2 more
openaire +4 more sources
Cultura Científica y Tecnológica, 2023 Los biorreactores son una de las soluciones que propone la ingeniería de tejidos para las principales enfermedades en México. Las matemáticas pueden determinar parámetros biocinéticos, que crean mecanismos para optimizar las condiciones de operación. Por lo tanto, la presente investigación tiene como objetivo diseñar un modelo matemático dinámico que ...
Héctor Adrián Ramírez Núñez +4 more
openaire +1 more source
Hyperspectral outcrop models for palaeoseismic studies
The Photogrammetric Record, Volume 34, Issue 168, Page 385-407, December 2019., 2019 To overcome the limitations of the traditional study of palaeoseismic trenches, a new workflow is presented that integrates infrared hyperspectral and photogrammetric data. This method was applied on two palaeoseismic trenches excavated across a post‐glacial fault scarp in northern Finnish Lapland.
Moritz Kirsch +19 more
wiley +1 more source
World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT Groundwater depletion is a major challenge in semiarid, hard‐rock regions where irrigation demands often exceed natural recharge. This study evaluates the effectiveness of farm‐scale recharge pits as a local, supplementary, and community‐managed groundwater recharge solution in the Dharta catchment of Rajasthan, India. Alongside check dams and
Prahlad Soni +4 more
wiley +1 more source
Systematic Entomology, Volume 51, Issue 2, April‐June 2026.We provide the first reliable hypothesis on the phylogenetic position of Calisto and Llorenteana within the tribe Satyrini, based on genomic data representing all subtribes. We apply for the first time nucleotide mixture models, which overcame the inconsistencies resulting from the use of partitioned models in this and previous studies, obtaining a ...
Rayner Núñez +4 more
wiley +1 more source