Search
Now showing items 10361-10370 of 10424
Dielectric spectroscopy of a ferroelectric nematic liquid crystal and the effect of the sample thickness
(Elsevier, 2023-10)
The recently discovered ferroelectric nematic liquid crystals have been reported to exhibit very large dielectric permittivity values. Here, we report a systematic investigation of the dielectric behavior of a prototypical ...
Digital competence among 1st and 4th year primary education undergraduate students: a comparative study of face-to-face and on-line teaching
(Springer Nature, 2024-06-13)
Digital competence (DC) has become a key element for future teachers in the effort to guarantee a high-quality education system that responds to the needs of the 21st century. For this reason, numerous studies have tried ...
On a Common Mistake in the Description of the Photoelectric Effect
(AIP, 2019-11-01)
The photoelectric effect is one of the key experiments taught during first- or second-year university and high school modern physics courses. It is usually the first experiment to introduce light quantization and the concept ...
Systemic Tumors Can Cause Molecular Changes in the Hippocampus That May Have an Impact on Behavior after Chronic Social Stress
(MDPI, 2024-06-06)
Evidence indicates that chronic social stress plays a significant role in the development of
cancer and depression. Although their association is recognized, the precise physiological mechanism
remains unknown. In our ...
Turbulencias sobre la primacía del Derecho de la UE: últimos desafíos, respuestas y aportaciones
(Marcial Pons, 2021-11-10)
Recientemente se han producido una serie de resoluciones de diversos tribunales constitucionales que vienen a desafiar abiertamente el principio de primacía del Derecho de la Unión, haciendo valer para ello diversos límites ...
Tutela judicial efectiva y Estado de Derecho en la UE y su incidencia en la Administración de Justicia de los Estados miembros
(UNED, 2020-12-16)
El reconocimiento de la tutela judicial efectiva que realiza el Derecho de la Unión Europea incide sobre la regulación nacional de la Administración de Justicia. No cabe duda de que la competencia para regular y actuar en ...
Dependence of Magnetic Properties of As-Prepared Nanocrystalline Ni2MnGa Glass-Coated Microwires on the Geometrical Aspect Ratio
(MDPI, 2024-06-06)
We have prepared NiMnGa glass-coated microwires with different geometrical aspect ratios, ρ = dmetal/Dtotal (dmetal—diameter of metallic nucleus, and Dtotal—total diameter). The structure and magnetic properties are ...
Hair cortisol determinants in 11-year-old children: Environmental, social and individual factors
(Elsevier, 2024-08)
Introduction
Children's exposure to chronic stress is associated with several health problems. Measuring hair cortisol concentration is particularly useful for studying chronic stress but much is unknown about hair ...
Non-destructive optical indices to estimate isoprenoids with nutritional value in packed rocket and spinach
(Elsevier, 2024-06)
The quantification of phytochemicals with nutritional benefits relies on accuracy yet time-consuming, expensive and destructive methodologies. In contrast, optical indices widely employed in disciplines such as ecology can ...
Ni supported on bioapatite for WGS: Improving catalyst stability and H2 selectivity by Pt-doping and thermochemical activation of the support
(Elsevier, 2024-05)
Catalytic properties of Ni and NiPt catalysts supported onto naturally derived hydroxyapatite (HAp) were investigated for the Water-Gas Shift (WGS) reaction in the 200–450 °C range. HAp was obtained by thermochemical ...