Results 21 to 30 of about 45,286 (222)

Salto en la luna [Conceptos de gravitación]

open access: yes, 2016
Muestra el análisis de la correspondencia entre el salto que realizó el astronauta y el de un astronauta virtual. Utiliza el dato conocido de la altura del salto filmado y el de la gravedad en la Luna para deducir la velocidad con que se impulsó el ...
Alonso Sánchez, Manuel
core   +2 more sources

Diversidad arbórea a través de gradientes topográcos en la región de El Salto, Durango/Arboreal diversity through topographic gradients in the El Salto, Durango Region

open access: yesEcosistemas y Recursos Agropecuarios, 2017
El objetivo del estudio fue evaluar y comparar la diversidad arbórea sobre diferentes gradientes de exposición y pendiente en un rango de altitud de 1 500 a 3 000 msnm en bosques templados de la región de El Salto, Durango.
María de Jesús Medrano-Meraz   +3 more
doaj   +1 more source

Assessing the Impact of Promotions on Consumer Purchasing Behavior During Crises

open access: yesAgribusiness, EarlyView.
ABSTRACT Understanding how households modify their food expenditure decisions during times of crisis is essential because consumer purchasing behavior frequently changes during these times. This study looks at these behavioral shifts during the COVID‐19 pandemic, concentrating on how price sensitivity and response to sales promotions changed over the ...
Wafa Mehaba, José María Gil
wiley   +1 more source

Preliminary design of SALTO, the Belgian adaptive optics demonstrator [PDF]

open access: yes, 2018
SALTO is a Belgian project aiming to build a complete 1 m telescope demonstrator including a single-conjugated adaptive optics (AO) system together with a Rayleigh laser guide star system.
Gilles Orban de Xivry   +17 more
core   +1 more source

Propiedades mecánicas y composición química de las raíces de árboles nativos en un bosque templado en Durango, México

open access: yesPolibotánica
En México, muchas carreteras se encuentran trazadas sobre una topografía accidentada siendo vulnerables a deslizamientos, provocando daños sociales, económicos y ambientales.
Silvia Janeth Bejar Pulido   +5 more
doaj   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

open access: yesThe Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro   +7 more
wiley   +1 more source

Productividad del agua asociada al sistema de plantación en plantas jóvenes de mandarina Nadorcott

open access: yesAgrociencia Uruguay
El principal objetivo de la citricultura en Uruguay es incrementar el rendimiento, la calidad, mejorar la sostenibilidad y la eficiencia de los recursos naturales.
Álvaro Otero   +4 more
doaj   +1 more source

Body mass and sex estimation from lower carnassial tooth morphometry in the endangered Iberian wolf (Canis lupus signatus): An ecomorphological analysis of sexual size dimorphism

open access: yesThe Anatomical Record, EarlyView.
Abstract The Iberian wolf (Canis lupus signatus) is an endangered subspecies characterized by highly fragmented populations and increasing human–carnivore conflict across the Iberian Peninsula. Although body mass strongly influences predator–prey dynamics and ecological performance, quantitative assessments of sexual size dimorphism (SSD) and body mass
Leonardo Cotts   +4 more
wiley   +1 more source

Neighbourhood-based spatial patterns of forest structure in Picea mexicana stands of northern Mexico

open access: yesNotulae Scientia Biologicae
Quantitative assessment of forest structure provides insights into stand dynamics, as species mixing, size variability, and spatial arrangement influence regeneration, competition, and long-term population viability.
Benedicto VARGAS-LARRETA   +4 more
doaj   +1 more source

Phenotypic associations between young horse assessments and orthopaedic diagnoses in insured Swedish Warmblood horses

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Lameness is the most common health problem in riding horses, and insurance data have previously been used to investigate the prevalence of orthopaedic diagnoses in Swedish Warmblood (SWB) horses. Young horse performance testing is an important part of the SWB breeding programme and contributes data to the genetic evaluation ...
Sandra Bonow   +4 more
wiley   +1 more source

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