Results 1 to 10 of about 93 (89)
Revista de Matemática: Teoría y Aplicaciones, 2013 En este trabajo se realizó un estudio estadístico de variablesfísico químicas asociadas al fenómeno de contaminación ambiental,en particular concentración media mensual de SO2, medidas en la ciudad Salta Capital, Argentina, simultáneamente a ...
Haydeé Elena Musso +1 more
doaj +4 more sources
Algoritmo Cromático Aplicado A Un Modelo De Regresión No Lineal En Pronósticos De Series De Tiempo
Ingeniería e Innovación, 2021 The present work uses the new metaheuristic, a chromatic algorithm for the optimization of time series forecasts through a non-linear regression model. In this new proposal, the chromatic algorithm is handled due to its real coding characteristics and its multiple boot memory, which allow it to be more efficient when minimizing the error in the model's
Rafael Emiro Sabie +2 more
openaire +3 more sources
Temperature niche composition change inside and outside protected areas under climate warming
Conservation Biology, Volume 37, Issue 5, October 2023., 2023 Abstract Conservation of biodiversity relies heavily on protected areas but their role and effectiveness under a warming climate is still debated. We estimated the climate‐driven changes in the temperature niche compositions of bird communities inside and outside protected areas in southern Canada.
Leena Hintsanen +4 more
wiley +1 more source
Revista Facultad de Ciencias Económicas, 2015 El objetivo de este artículo es validar el modelo Autorregresivo de Transición Suave (STAR) para el análisis de la sincronización cíclica del sector manufacturero de Estados Unidos con México, a partir de la apertura comercial de este último. Para este
GABRIELA ZEPEDA-MERCADO
doaj +3 more sources
Regional Science Policy &Practice, Volume 14, Issue S1, Page 21-40, November 2022., 2022 Abstract A key policy measure introduced by governments worldwide at the beginning of the coronavirus disease 2019 (COVID‐19) pandemic was to restrict travel, highlighting the importance of people's mobility as one of the key contributors to spreading severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2).
Bart Roelofs +3 more
wiley +1 more source
River connectivity and climate behind the long‐term evolution of tropical American floodplain lakes
Ecology and Evolution, Volume 11, Issue 19, Page 12970-12988, October 2021., 2021 We present a multi‐proxy approach on short sedimentary cores form two neotropical flood plain lakes associated with the Magdalena River, Colombia, to study temporal variation in diatoms, sediment geochemistry and climate. We proposed that lake hydrological connectivity to the Magdalena River is a main factor controlling lake long‐term responses to ...
Laura Lopera‐Congote +4 more
wiley +1 more source
Detector de Neuropatologías en EEG usando Estadísticas de Orden Superior y Aprendizaje Profundo
Revista Ingeniería UC, 2021 En el presente artículo se presenta un detector de neuropatologías, a partir del electroencefalograma (EEG) del paciente. La detección se basa en la clasificación de imágenes de HOSA (siglas en inglés para análisis de estadísticas de orden superior o ...
César Seijas +4 more
doaj +1 more source
Optimal timing for surgical reconstruction of bile duct injury: meta‐analysis
BJS Open, Volume 4, Issue 5, Page 776-786, October 2020., 2020 This meta‐analysis addressed the timing of surgical reconstruction with hepaticojejunostomy for bile duct injury. Reconstruction between 2 and 6 weeks after injury was associated with an increased risk of postoperative morbidity as well as anastomotic stricture formation.
A. M. Schreuder +6 more
wiley +1 more source
Complex and nonlinear climate‐driven changes in freshwater insect communities over 42 years
Conservation Biology, Volume 34, Issue 5, Page 1241-1251, October 2020., 2020 Abstract The ongoing biodiversity crisis becomes evident in the widely observed decline in abundance and diversity of species, profound changes in community structure, and shifts in species’ phenology. Insects are among the most affected groups, with documented decreases in abundance up to 76% in the last 25–30 years in some terrestrial ecosystems ...
Viktor Baranov +4 more
wiley +1 more source
Revista Ingenierías Universidad de Medellín, 2014 La extensión teórica de los modelos lineales de promedios móviles al caso no lineal es directa y sencilla. Sin embargo, el uso práctico de los modelos no lineales de promedios móviles es limitado debido a la complejidad del espacio de parámetros y la ...
Miladys R. Cogollo +2 more
doaj +1 more source