Results 1 to 10 of about 1,117 (118)

Effect of Sperm Ratio and Temperature on Fertilization and Early Larval Development of the Surf Clam Mesodesma donacium (Bivalvia:Mesodesmatidae) [PDF]

open access: yesAnimals, 2022
The effect of sperm ratio on fertilization was evaluated in five sperm:oocytes treatments (10:1, 50:1, 100:1, 500:1 and 1000:1), the effect of temperature on embryonic and larval development in three temperature treatments (13 °C, 16 °C and 19 °C) was ...
Piera Vásquez-Calderón   +3 more
doaj   +2 more sources

Fixed points of set-valued mappings satisfying a Banach orbital condition

open access: yesCubo, 2023
In this note, we prove a fixed point existence theorem for set-valued functions by extending the usual Banach orbital condition concept for single valued mappings.
Raúl Fierro, Sergio Pizarro
doaj   +1 more source

Análisis del primer mensaje a la nación de los Presidentes Lagos y Piñera

open access: yesCuadernos.info, 2020
 Este artículo busca identificar y describir el imaginario de país que propusieron los Presidentes chilenos Ricardo Lagos y Sebastián Piñera en sus primeros mensajes del 21 de mayo, además de establecer las similitudes y diferencias entre ambos.
IGNACIO LÓPEZ ESCARCENA
doaj   +3 more sources

Drag force in the vacuum of confining gauge theories

open access: yesNuclear Physics B, 2022
The complete absence of isolated quarks reaching particle detectors after high energy collisions suggests that some physical mechanism generates resistance to their propagation in the vacuum. In order to reveal such a mechanism, we analyze the fate of an
Saulo Diles   +2 more
doaj   +1 more source

Adiabatic evolution of Hayward black hole

open access: yesPhysics Letters B, 2021
In this letter we use the Carathéodory's approach to thermodynamics, to construct the thermodynamic manifold of the Hayward black hole. The Pfaffian form representing the infinitesimal heat exchange reversibly is considered to be δQrev≡drs−FHdl ...
Mohsen Fathi   +2 more
doaj   +1 more source

Melting of scalar hadrons in an AdS/QCD model modified by a thermal dilaton

open access: yesNuclear Physics B, 2019
We consider an AdS/QCD model at finite temperature with a dilaton field that we call thermal because, in addition to depending on the holographic coordinate, it also depends on temperature. We study two thermal dilatons in this work such that at T=0 they
Alfredo Vega, M.A. Martin Contreras
doaj   +1 more source

Imagining Ferdinand VII, a Catholic and felon King | Imaginando a Fernando VII, rey católico y felón

open access: yesPasado y Memoria, 2015
The public image of King Ferdinand VII (1784-1833) was built through a process of exaltation and sacralization as a result of the Napoleonic invasion of the Iberian Peninsula that started in the fall of 1807.
Gregorio Alonso
doaj   +1 more source

Chilean IPNV isolates: Robustness analysis of PCR detection

open access: yesElectronic Journal of Biotechnology, 2016
Background: The genomes of several infectious pancreatic necrosis viruses (IPNVs) isolated in Chile were sequenced with a single amplification approach for both segments A and B. The resulting sequences were then used to determine the conservation of the
Esteban Jorquera   +7 more
doaj   +1 more source

Ergosphere, Photon Region Structure, and the Shadow of a Rotating Charged Weyl Black Hole

open access: yesGalaxies, 2021
In this paper, we explore the photon region and the shadow of the rotating counterpart of a static charged Weyl black hole, which has been previously discussed according to null and time-like geodesics. The rotating black hole shows strong sensitivity to
Mohsen Fathi   +2 more
doaj   +1 more source

Kierkegaard: Sobre el proceso y la paradoja en Temor y temblor

open access: yesRevista de Filosofía Universidad Iberoamericana, 2020
Aunque es imposible explicar una paradoja, este trabajo trata de dar sentido a lo que ella significa y a lo que Abraham cree “en virtud del absurdo”. Antes que nada, se resumirán diversas interpretaciones de reconocidos autores.
Alison Assiter, Anna Fioravanti
doaj   +1 more source

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