Results 41 to 50 of about 9,832 (206)

Magnetic properties of the double perovskites LaPbMSbO6 (M = Mn, Co and Ni)

open access: yes, 2013
New double perovskites LaPbMSbO6, where M2+ = Mn2+, Co2+, and Ni2+, were synthesized as polycrystals by an aqueous synthetic route at temperatures below 1000 oC.
Carbonio, R. E.   +2 more
core   +1 more source

Lattice specific heat for the RMIn$_5$ (R = Gd, La, Y, M = Co, Rh) compounds: non-magnetic contribution subtraction [PDF]

open access: yes, 2016
We analyze theoretically a common experimental process used to obtain the magnetic contribution to the specific heat of a given magnetic material. In the procedure, the specific heat of a non-magnetic analog is measured and used to subtract the non ...
Betancourth, D.   +8 more
core   +2 more sources

Quasi‐Constant Time Gap in Multiple Rings of Elves

open access: yesEarth and Space Science, Volume 12, Issue 10, October 2025.
Abstract We present evidence that the time delay between the multiple rings of elves is not caused by the ground reflection of the electromagnetic pulse produced by intracloud lightning. To investigate temporal differences of multi‐elves, we analyzed data from four storms occurring at various times and distances from the Pierre Auger Observatory in ...
The Pierre Auger Collaboration
wiley   +1 more source

Potenciales para la diversificación de la matriz energética delCentro Nacional de Electromagnetismo Aplicado

open access: yesRevista Científica de Ingeniería Energética, 2019
El objetivo de este trabajo fue evaluar el potencial de diversificación de la matriz energética del Centro Nacional de Electromagnetismo Aplicado (CNEA). Esta evaluación se realizó a través de tres pasos. En el primer paso, se determinó
Mónica Rosario Berenguer Ungaro   +4 more
doaj  

Cumulant expansion framework for internal gradient distributions tensors

open access: yesJournal of Magnetic Resonance Open, 2023
Magnetic resonance imaging is a powerful, non invasive tool for medical diagnosis. The low sensitivity for detecting the nuclear spin signals, typically limits the image resolution to several tens of micrometers in preclinical systems and millimeters in ...
Leonardo A. Pedraza Pérez   +1 more
doaj   +1 more source

A search for point sources of EeV photons

open access: yes, 2014
Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point sources of EeV photons anywhere in the exposed sky.
Aab, A.   +485 more
core   +2 more sources

Adverse impact of acute Toxoplasma gondii infection on human spermatozoa

open access: yesThe FEBS Journal, Volume 292, Issue 17, Page 4720-4736, September 2025.
Toxoplasma gondii tachyzoites injected intraperitoneally crossed the blood‐testes barrier, appearing in testes/epididymis by day 6 post‐infection. In vitro exposure caused increased sperm necrosis/apoptosis and structural damage to heads/tails. Immunofluorescence and SEM revealed tachyzoites attaching to sperm tails, inducing twisting/detachment, and ...
Lisbeth Rojas‐Barón   +11 more
wiley   +1 more source

Avatares de la energía nuclear en Argentina. Análisis y contextualización del Plan Nuclear de 1979

open access: yesH-Industri@, 2014
El presente artículo tiene por objetivo analizar el Plan Nuclear de 1979 en relación con el contexto histórico e ideológico en que se desarrolló. Su estudio reviste especial interés en tanto que la actitud del gobierno auto-denominado “Proceso de ...
Milagros Rodríguez
doaj  

Anisotropic suppression of hyperuniformity of elastic systems in media with planar disorder

open access: yesCommunications Materials, 2022
Disordered hyperuniform materials are interesting due to the asymptotic absence of long-wavelength density fluctuations, leading to unconventional phenomenology.
Joaquín Puig   +8 more
doaj   +1 more source

DESARROLLO DE UN ESPECTRÓMETRO POR MOVILIDAD IÓNICA PARA LA DETECCIÓN DE COMPUESTOS ORGÁNICOS (EXPLOSIVOS, DROGAS Y CONTAMINANTES)

open access: yesAnales (Asociación Física Argentina), 2008
En este trabajo se presenta el desarrollo de un IMS (Ion Mobility Spectrometer) caracterizado por contar con la aplicación de un campo eléctrico perpendicular al flujo de iones generados mediante una descarga tipo corona.
N. G. Boggio   +5 more
doaj  

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