Results 11 to 20 of about 3,237 (192)

Highly Atypical 2025 Influenza A Season in Brazil. [PDF]

open access: yesInfluenza Other Respir Viruses
Influenza and Other Respiratory Viruses, Volume 20, Issue 4, April 2026.
Portella TP   +4 more
europepmc   +2 more sources

Traducción: Matematicas aplicadas en escenarios de crisis (Covid-19) [PDF]

open access: yesSapientiae, 2021
Las matemáticas aplicadas forman parte de la formación universitaria en pregrado y posgrado. Desde esta perspectiva, en este ensayo se hará uso de las matemáticas aplicadas con el objetivo de estudiar los efectos psicológicos, económicos y educativos ocasionados sobre la población por un escenario de crisis como el COVID-19.
openaire   +2 more sources

Some properties of semiregular cages [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2010
Graphs and ...
Camino Balbuena   +2 more
doaj   +1 more source

A study of the mesh effect on a rocket plume simulation

open access: yesResults in Engineering, 2022
The use of reliable CFD models for the simulation of spacecraft launch is crucial due to the complexity of obtaining experimental data. The validity of the results depends on the numerical schemes used and the mesh. In this paper two CFD simulations of a
Federico N. Ramírez   +3 more
doaj   +1 more source

Unraveling the Dynamics of Oxytocin in Hypothalamic Neurons. [PDF]

open access: yesTraffic
Oxytocin (OT) plays an important role in regulating social behavior, and dysregulation of the oxytocinergic system leads to social impairments, such as autism spectrum disorder. Central OT release is poorly understood. Using live‐cell imaging to track vesicle trajectories, combined with machine learning‐based classification, the analysis reveals ...
Aznar-Escolano B   +6 more
europepmc   +2 more sources

CFD Simulation of a Hyperloop Capsule Inside a Low-Pressure Environment Using an Aerodynamic Compressor as Propulsion and Drag Reduction Method

open access: yesApplied Sciences, 2021
One of the most restrictive conditions in ground transportation at high speeds is aerodynamic drag. This is even more problematic when running inside a tunnel, where compressible phenomena such as wave propagation, shock waves, or flow blocking can ...
Federico Lluesma-Rodríguez   +2 more
doaj   +1 more source

A general framework for invasion cycles in ecology. [PDF]

open access: yesEcology
Abstract Theory predicts that indirect interactions in ecological networks sustain species diversity through oscillatory dynamics. However, a framework linking interaction structure to the presence, type, and complexity of these cycles is lacking. Here, we develop an analytical toolbox combining invasion graphs with a mathematical decomposition of ...
Calleja-Solanas V   +5 more
europepmc   +2 more sources

A construction of small regular bipartite graphs of girth 8 [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
Let q be a prime a power and k an integer such that 3 ≤ k ≤ q. In this paper we present a method using Latin squares to construct adjacency matrices of k-regular bipartite graphs of girth 8 on 2(kq2 -- q) vertices.
Camino Balbuena
doaj   +1 more source

Spectral ordering and 2-switch transformations [PDF]

open access: yesThe American Journal of Combinatorics, 2022
We address the problem of ordering trees with the same degree sequence by their spectral radii. To achieve that, we consider 2-switch transformations which preserve the degree sequence and establish when the index decreases.
Elismar Oliveira   +2 more
doaj  

Domain walls in a non-linear S 2 $$ {\mathbb{S}}^2 $$ -sigma model with homogeneous quartic polynomial potential

open access: yesJournal of High Energy Physics, 2018
In this paper the domain wall solutions of a Ginzburg-Landau non-linear S 2 $$ {\mathbb{S}}^2 $$ -sigma hybrid model are exactly calculated. There exist two types of basic domain walls and two families of composite domain walls. The domain wall solutions
A. Alonso-Izquierdo   +2 more
doaj   +1 more source

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