Results 41 to 50 of about 655,106 (217)

Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast

open access: yesEcography, EarlyView.
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri   +6 more
wiley   +1 more source

Numerical analysis of the Rayleigh instability in capillary tubes: The influence of surfactant solubility [PDF]

open access: yes, 2006
A two-dimensional (2D) free surface flow model already used to study the Rayleigh instability of thin films lining the interior of capillary tubes under the presence of insoluble surfactants [D. M. Campana, J. Di Paolo, and F. A.
Campana, Diego Martin   +1 more
core   +1 more source

Healthy Snacks Elaborated With Decoction Residues of Hibiscus sabdariffa L: Physical and Sensory Characteristics

open access: yesFood Chemistry International, EarlyView.
Healthy snacks formulated with food by‐products are gaining interest within the food industry. Decoction residues of Hibiscus sabdariffa (roselle) retain thermostable polyphenols. Extruded snacks enriched with roselle showed a reduction in the expansion index as the roselle concentration increased.
Monserrat Hernández‐Bautista   +3 more
wiley   +1 more source

TIC para la educación: sistema adaptativo basado en mecanismos de aprendizaje automático para la apropiación de tecnologías en estudiantes de educación media

open access: yesTelos: Revista de Estudios Interdisciplinarios en Ciencias Sociales, 2019
La investigación presenta un enfoque basado en analítica de datos y mecanismos de aprendizaje automático integrado a una de las plataformas digitales de aprendizaje más usadas en el mundo (open EDX) como aporte al mejoramiento de los procesos de ...
Andrea Otero   +3 more
doaj  

Electrical circuits RC and RL involving fractional operators with bi-order

open access: yesAdvances in Mechanical Engineering, 2017
This article describes electrical series circuits RC and RL using the concept of derivative with two fractional orders α and β in Liouville–Caputo sense. The fractional equations consider derivatives in the range of α , β ∈ ( 0 ; 1 ] .
JF Gómez-Aguilar   +4 more
doaj   +1 more source

A Geometric Interpretation for the Algebraic Properties of Second‐Order Ordinary Differential Equations

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6912-6917, April 2025.
ABSTRACT Nowadays, a substantial portion of investigations concerning the symmetry analysis of differential equations predominantly adhere to a framework comprising the following key procedures: (i) the derivation of symmetries, (ii) the determination of an optimal system, (iii) the utilization of these symmetries to construct invariants or ...
A. Paliathanasis   +2 more
wiley   +1 more source

The complete chloroplast genome of the national tree of Peru, quina (Cinchona officinalis L., Rubiaceae)

open access: yesMitochondrial DNA. Part B. Resources, 2021
Here, we report the first complete chloroplast (cp) genome of Cinchona officinalis. This cp genome has a 156,984 bp in length with typical quadripartite structure, containing a large single copy (LSC) region (83,929 bp) and an 18,051 bp small single-copy
Carlos I. Arbizu   +5 more
doaj   +1 more source

Lubrication model of a knee prosthesis, with non newtonian fluid and porous rough material [PDF]

open access: yes, 2009
Tibial component of knee prostheses, made of ultra high molecular weight polyethylene (UHMWPE), experiences a high degree of wear and may be expected to last twelve years on average.
Berli, Marcelo Eduardo   +3 more
core  

Single‐Breathhold 3D MR Elastography in the Liver, With Simultaneous R2* and PDFF Mapping

open access: yesMagnetic Resonance in Medicine, EarlyView.
Purpose To develop a sequence for the rapid acquisition of MR elastography (MRE) parameters in 3D, with simultaneous measurement of proton‐density fat fraction (PDFF) and R2* for multiparametric assessment of liver disease. Methods The proposed sequence uses an interleaved motion‐encoding scheme to acquire 3D volumes of all motion encodings and wave ...
Donovan P Tripp   +10 more
wiley   +1 more source

Genetic diversity among viruses associated with sugarcane mosaic disease in Tucumán, Argentina [PDF]

open access: yes, 2009
Sugarcane leaves with mosaic symptoms were collected in 2006--07 in Tucumán (Argentina) and analyzed by reverse-transcriptase polymerase chain reaction (RT-PCR) restriction fragment length polymorphism (RFLP) and sequencing of a fragment of the Sugarcane
Castagnaro, Atilio Pedro   +6 more
core   +2 more sources

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