Results 121 to 130 of about 5,236,261 (354)

Revealing the Altermagnetism in Hematite via XMCD Imaging and Anomalous Hall Electrical Transport

open access: yesAdvanced Materials, EarlyView.
This study combines X‐ray magnetic imaging and electrical transport to uncover the anomalous Hall effect in hematite, an insulating oxide exhibiting unconventional altermagnetic properties. Imaging reveals distinct magnetic domains linked to crystal symmetry, and angular‐dependent transport measurements highlight unusual symmetry‐driven conductivity ...
Edgar Galindez‐Ruales   +18 more
wiley   +1 more source

DECRETO DE FUNDACION DE LA UNIVERSIDAD DE EL SALVADOR

open access: yesLa Universidad, 2018
DECRETO DE FUNDACION DE LA UNIVERSIDAD DE EL ...
La Universidad
doaj  

A note on the application of wazewski’s topological method to an integro: differential equation of volterra type [PDF]

open access: yes, 2015
The purpose of this note is to generalize the Wazewski’s Topological Method 11, originally stated for ordinary differential equations, to the integro – differential equation of Volterra type (1), under suitable conditions on the functions involved.Fil ...
Guzmán, Paulo Matias   +3 more
core  

Fricke and polymer gel 2D dosimetry validation using Monte Carlo simulation [PDF]

open access: yes, 2016
Complexity in modern radiotherapy treatments demands advanced dosimetry systems for quality control. These systems must have several characteristics, such as high spatial resolution, tissue equivalence, three-dimensional resolution, and dose-integrating ...
Chacón Obando, D.   +12 more
core   +1 more source

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora   +17 more
wiley   +1 more source

TRES JOVENES POETAS DE EL SALVADOR

open access: yesLa Universidad, 2018
TRES JOVENES POETAS DE EL ...
La Universidad
doaj  

A Gamma convergence approach to the critical Sobolev embedding in variable exponent spaces [PDF]

open access: yes, 2016
In this paper, we study the critical Sobolev embeddings W1,p(.)(Ω)⊂Lp*(.)(Ω) for variable exponent Sobolev spaces from the point of view of the Γ-convergence.
Fernandez Bonder, Julian   +2 more
core   +2 more sources

Universidad de Alicante, universidad cardioprotegida

open access: yes, 2017
Introducción: La parada cardíaca (PC) es una patología muy frecuente. En España hay 30.000 muertes súbitas al año y 20.000 intentos de reanimación. Posibilidades de supervivencia de PC secundaria a una arritmia ventricular en la calle: 5-10%.
García Aracil, Noelia   +5 more
openaire   +1 more source

Reversible Phase Transitions of Anionic and Cationic Surfactant Mixtures Drive Shape Morphing Droplets

open access: yesAdvanced Materials, EarlyView.
A light‐controlled, reversible phase transition of ionic surfactant assemblies, coupled with dynamic partitioning between bulk phases and interfaces, induces rapid, and order‐of‐magnitude changes in oil–water interfacial tension. Surpassing the capabilities of conventional stimuli‐responsive surfactants, this transient, collaborative mechanism enables ...
Bradley D. Frank   +3 more
wiley   +1 more source

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