Results 1 to 10 of about 38,142 (226)

Nuevas citas de los galápagos chinos Mauremys reevesii (Gray, 1831) y Mauremys sinensis (Gray, 1834) (Testudines, Geoemydidae) en España

open access: yesGraellsia, 2021
El comercio de quelonios acuáticos como animales de compañía y su eventual liberación o escape ha conllevado la detección de especies exóticas naturalizadas o formando poblaciones invasoras en ecosistemas acuáticos.
Juan Pablo González de la Vega   +2 more
doaj   +1 more source

Optimizing Point Source Tracking in Awake Rat PET Imaging: A Comprehensive Study of Motion Detection and Best Correction Conditions

open access: yesApplied Sciences, 2023
Preclinical PET animal studies require immobilization of the animal, typically accomplished through the administration of anesthesia, which may affect the radiotracer biodistribution.
Fernando Arias-Valcayo   +5 more
doaj   +1 more source

Consistent and non-consistent deformations of gravitational theories

open access: yesJournal of High Energy Physics, 2022
We study the internally abelianized version of a range of gravitational theories, written in connection tetrad form, and study the possible interaction terms that can be added to them in a consistent way. We do this for 2+1 and 3+1 dimensional models. In
J. Fernando Barbero G.   +3 more
doaj   +1 more source

Industria del petróleo, orden económico y orden político: estudio comparativo de Ghana y Guinea Ecuatorial

open access: yesRevista Iberoamericana de Estudios de Desarrollo, 2021
In this article, it is explored the conditioning elements of the economic and political dynamics surrounding the extraction of hydrocarbons in two countries in the Gulf of Guinea: Ghana and Equatorial Guinea.
Ángeles Sánchez-Díez   +1 more
doaj   +1 more source

A two-sided Faulhaber-like formula involving Bernoulli polynomials

open access: yesComptes Rendus. Mathématique, 2020
We give a new identity involving Bernoulli polynomials and combinatorial numbers. This provides, in particular, a Faulhaber-like formula for sums of the form $1^m(n-1)^m+2^m(n-2)^m+\dots +(n-1)^m1^m$ for positive integers $m$ and $n$.
Barbero G., J. Fernando   +2 more
doaj   +1 more source

The formation and evolution of provincial society in Northwestern Hispania: Civitates and rural world

open access: yesGerión, 2018
We focus on the transformation processes brought about by Roman domination in the Hispanic Northwest and its evolution from two combined perspectives: on the one hand, local and regional changes and, on the other, the different strategies followed by ...
Inés Sastre   +3 more
doaj   +1 more source

Simulating Microswimmers Under Confinement With Dissipative Particle (Hydro) Dynamics

open access: yesFrontiers in Physics, 2022
In this work we study microwimmers, whether colloids or polymers, embedded in bulk or in confinement. We explicitly consider hydrodynamic interactions and simulate the swimmers via an implementation inspired by the squirmer model.
C. Miguel Barriuso Gutiérrez   +8 more
doaj   +1 more source

Estructura genética y aptitud ambiental de poblaciones de pasto banderita [Bouteloua curtipendula (Michx.) Torr.] en Chihuahua, México

open access: yesRevista Mexicana de Ciencias Pecuarias, 2022
En los últimos años se han realizado diversos trabajos para seleccionar genotipos sobresalientes de pastos para restauración de pastizales. Estos trabajos se han enfocado principalmente en características agronómicas y poca importancia se ha dado a la ...
Alan Álvarez-Holguín   +5 more
doaj   +1 more source

Multiple shape coexistence in the N = Z 84Mo nucleus [PDF]

open access: yesEPJ Web of Conferences
The structure of the nucleus 84Mo has been studied using the projected generator coordinate method (PGCM) with the Gogny D1S interaction. The calculations incorporate a mixing of particle-number and angular-momentum projected intrinsic wave functions ...
Rodríguez Tomás R.
doaj   +1 more source

Mapa de usos potenciales de la tierra de Galicia. Una perspectiva arqueológica

open access: yesTrabajos de Prehistoria, 2014
La cartografía de usos potenciales de la tierra es una herramienta de gran utilidad en el estudio de las formas de poblamiento y su relación con la explotación de los recursos agrícolas desde el enfoque de la arqueología del paisaje. La digitalización de
Brais X. Currás Refojos
doaj   +1 more source

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