Results 71 to 80 of about 488,015 (266)
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng +9 more
wiley +1 more source
Multiscale Structuring of Hydroxyapatite via Two‐Photon Lithography of Nanocomposites
Hydroxyapatite scaffolds are of great interest in bone tissue engineering applications, ranging from 3D cell culture to regenerative medicine. Using two‐photon lithography of a transparent nanocomposite, hydroxyapatite microstructures with features ranging from submicron to centimeter‐scale are fabricated. This allows to mimic the natural bone geometry,
Leonhard Hambitzer +6 more
wiley +1 more source
Measuring and comparing religious freedom across countries and over time requires reliable and valid data sources. Existing religious freedom datasets are either based on the coding of qualitative data (such as the Religion and State Project or the Pew ...
Dennis P. Petri +2 more
doaj +1 more source
A random effects variance shift model for detecting and accommodating outliers in meta-analysis
Background Meta-analysis typically involves combining the estimates from independent studies in order to estimate a parameter of interest across a population of studies. However, outliers often occur even under the random effects model.
Jackson Dan, Gumedze Freedom N
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Three‐dimensional Antimony Sulfide Based Flat Optics
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang +18 more
wiley +1 more source
La opinión consultiva emitida por la Corte Interamericana de Derechos Humanos en respuesta a la solicitud formulada por el gobierno de Costa Rica respecto de la interpretación de los artículos 11.2, 18 y 24 de la Convención Americana, presenta graves ...
Neydy Casillas
doaj
Autoimmune diseases affect more than 50 million Americans, resulting in significant healthcare costs. Most autoimmune diseases occur sporadically; however, endemic pemphigus foliaceus (EPF) is an autoimmune skin disease localized to specific geographic ...
Wendy B. Bollag
doaj +1 more source
Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces
A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai +6 more
wiley +1 more source
Virtual school parent perceptions of public school accountability
While school accountability systems were implemented to improve student outcomes through increased transparency, creating linkages between successful behaviors and rewards, they have often faced controversy.
Ian Kingsbury +2 more
doaj +1 more source
ALTERNATIVE (NON-MILITARY) SERVICE MODEL IN FINLAND: STRUCTURE, MECHANISMS AND CHALLENGES
The aim of the article is a comprehensive study of the system of alternative (non-military) service in Finland, its legal regulation, appointment procedures, features of passage and forms of performance of duty in case of emergency situations and ...
Yaroslav Kotylko
doaj +1 more source

