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Tunable Generation of Spatial Entanglement in Nonlinear Waveguide Arrays.
Phys Rev Lett
December 2024
Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France.
Harnessing high-dimensional entangled states of light presents a frontier for advancing quantum information technologies, from fundamental tests of quantum mechanics to enhanced computation and communication protocols. In this context, the spatial degree of freedom stands out as particularly suited for on-chip integration. But while traditional demonstrations produce and manipulate path-entangled states sequentially with discrete optical elements, continuously coupled nonlinear waveguide systems offer a promising alternative where photons can be generated and interfere along the entire propagation length, unveiling novel capabilities within a reduced footprint.
View Article and Find Full Text PDFHigh-temperature high-k polyolefin by rational molecular design.
Proc Natl Acad Sci U S A
December 2024
Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, Storrs, CT 06269.
Article Synopsis
- - Polymer film dielectrics are preferred for energy storage because they offer advantages like high breakdown strength, low dielectric loss, and easy processing, while the move towards high-density renewables increases the demand for high-temperature, high-k polymers.
- - A new design method enhances high-temperature polyolefins' dielectric constant by integrating phenyl pendants into their structure, allowing for better dielectric properties while still maintaining high thermal stability.
- - The resulting polymer, m-PNB-BP, achieves a notable dielectric constant of 4 at 150 °C and a discharged density of 8.6 J/m at 660 MV/m, presenting a promising approach for developing polymers ideal for capacitive energy storage under harsh conditions.
Exploring high entropy alloys: A review on thermodynamic design and computational modeling strategies for advanced materials applications.
Heliyon
November 2024
Centre for Nanoengineering and Advanced Materials, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, Johannesburg, 2092, South Africa.
In the quest for materials that can withstand the rigors of modern engineering applications, high-entropy alloys (HEAs) have emerged as a frontier in material science owing to their unprecedented combination of properties. This review focuses on intricate thermodynamic and computational modeling to guide the design and optimization of HEAs. By dissecting the foundational "four core effects" intrinsic to HEAs-high entropy, sluggish diffusion, severe lattice distortion, and cocktail effect-we illuminate the path towards predictable and tailored material properties.
View Article and Find Full Text PDFFollow the Path: Unveiling an Azole Resistant Outbreak by FTIR Spectroscopy and STR Analysis.
J Fungi (Basel)
October 2024
Dipartimento di Scienze di Laboratorio ed Ematologiche, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, 00168 Roma, Italy.
Accurate identification and rapid genotyping of , a significant opportunistic pathogen in healthcare settings, is crucial for managing outbreaks, timely intervention, and effective infection control measures. This study includes 24 clinical samples and 2 positive environmental surveillance swabs collected during a fluconazole-resistant outbreak at the Tuscany Rehabilitation Clinic (Clinica di Riabilitazione Toscana, CRT), located in the province of Arezzo, Italy. Fourier-transform infrared (FTIR) spectroscopy, genetic sequencing of the ERG11 gene, and short tandem repeat (STR) analysis was applied to track the fluconazole-resistant outbreak at the CRT facility.
View Article and Find Full Text PDFMetabolic stress in space: ROS-induced mutations in mice hint at a new path to cancer.
Redox Biol
December 2024
Stanford University, School of Medicine, Stanford, CA, 94305, USA.
Long-duration spaceflight beyond Earth's magnetosphere poses serious health risks, including muscle atrophy, bone loss, liver and kidney damage, and the Spaceflight-Associated Neuro-ocular Syndrome (SANS). RNA-seq of mice aboard the International Space Station (ISS) for 37 days revealed extraordinary hypermutation in tissue-specific genes, with guanine base conversion predominating, potentially contributing to spaceflight-associated health risks. Our results suggest that the genome-wide accelerated mutation that we measured, seemingly independent of radiation dose, was induced by oxidative damage from higher atmospheric carbon dioxide (CO) levels and increased reactive oxygen species (ROS) on the ISS.
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