Results 21 to 30 of about 9,050 (124)

Pronóstico de la producción de las principales frutas en la región de Piura. Un análisis econométrico con el método de Box-Jenkins

open access: yesSemestre Economico, 2020
El sector agrícola juega un papel importante en la economía de todos los países. La actividad agrícola en la región de Piura, es una actividad fundamental para su desarrollo.
Freddy Carrasco Choque
doaj   +1 more source

Pronóstico de precios de la carne de cerdo mexicana, con base en el crudo WTI, Maíz y Soya

open access: yesRevista Científica, 2023
La investigación realizada es de tipo correlacional y estudió la influencia del precio del barril del crudo WTI, el bushel de Maíz y la tonelada de harina de Soya como variables independientes, sobre el precio de la libra de carne de cerdo mexicana, con
Sergio Orozco-Cirilo   +3 more
doaj   +1 more source

Solar Flare Activity, 1937–2024: Introducing the New Hemispheric Solar Flare Index (hSFI) in the Context of 2024's Major Solar Storm Events

open access: yesSpace Weather, Volume 23, Issue 11, November 2025.
Abstract A new daily composite of the solar flare index (SFI) and the hemispherically‐resolved versions (hSFI) are presented for 1937 to 2024. The data set confirms that the northern hemisphere (NH) dominated solar flare activity during Solar Cycles 17 to 21, but that the southern hemisphere has dominated from Solar Cycle 22 to present.
V. M. Velasco Herrera   +14 more
wiley   +1 more source

Age as a variable associated with severity in patients with COVID-19

open access: yesRevista Cubana de Medicina Militar, 2022
Introduction: COVID-19, rocked the world in December 2019. Since its inception, it has been observed that older patients are prone to develop severe forms of the disease.
Carlos Enrique Herrera Cartaya   +5 more
doaj  

Impact of endometrial thickness on reproductive outcome in fresh and frozen–thawed embryo transfer: systematic review and meta‐analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 3, Page 271-281, September 2025.
ABSTRACT Objective To evaluate the impact of endometrial thickness on the reproductive outcomes of embryo transfer (ET) treatments using both cut‐off‐based meta‐analysis and meta‐analysis of proportions. Methods This was a systematic review and meta‐analysis of comparative studies (randomized controlled trials, cohort studies, case–control studies) and
F. Pérez‐Milán   +10 more
wiley   +1 more source

Verificación del pronóstico de la actividad ciclónica en el Atlántico Norte para 2015

open access: yesRevista Cubana de Meteorología, 2016
-
Maritza Ballester Pérez   +2 more
doaj  

Immunohistochemical subtypes and their relationship with the clinicopathological and histological aspects of breast cancer

open access: yesMedisur, 2022
Background: The prognosis and therapy of breast cancer (BC) is closely related to the histopathological characteristics of the patient. These allow to establish prognostic groups, as support in the decision of effective individual treatments.
Lourdes González-Longoria Boada   +2 more
doaj  

Factores pronósticos en pacientes hospitalizados con diagnóstico de infección por SARS-CoV-2 en Bogotá, Colombia

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2020
Introducción. La infección por el nuevo coronavirus SARS-Cov-2 es una emergencia de salud pública en todo el mundo; su diagnóstico se basa en pruebas moleculares, en tanto que su pronóstico depende de los antecedentes del paciente y de algunos exámenes ...
Juan Camilo Motta   +7 more
doaj   +1 more source

Spatially nested species distribution models (N‐SDM): An effective tool to overcome niche truncation for more robust inference and projections

open access: yesJournal of Ecology, Volume 113, Issue 7, Page 1588-1605, July 2025.
N‐SDMs are key tools to develop untruncated regional climate change forecasts of species distributions at fine resolution over restricted extents. While several N‐SDM approaches were proposed, there is currently no universal solution suggesting that further developments and testing are crucial if we are to derive robust future projections of species ...
Antoine Guisan   +12 more
wiley   +1 more source

Variabilidad en la frecuencia de los huracanes del Caribe en octubre durante el período 1951-2005

open access: yesRevista Cubana de Meteorología, 2009
En esta investigación se retoma el tema de los huracanes, pero esta vez sólo para el Mar Caribe y en el mes de octubre; es decir se intenta explicar las variaciones que ocurren de forma interdecadal en la frecuencia de formación e intensificación de los ...
José Ramón Palacios Morales   +1 more
doaj  

Home - About - Disclaimer - Privacy