This paper provides a comprehensive review of recent theoretical investigations concerning magnetohydrodynamic (MHD) waves in partially ionized solar plasma. First, we examine the properties of linear MHD waves in a uniform partially ionized plasma and discuss the relevant effects arising from partial ionization. Subsequently, we delve into MHD wave studies in the more intricate settings of the lower solar atmosphere and solar prominences. These investigations involve topics such as MHD waves in magnetic flux tubes, wave excitation, linear and nonlinear mode coupling and wave heating. We outline new challenges that future research should tackle. This article is part of the theme issue 'Partially ionized plasma of the solar atmosphere: recent advances and future pathways'.
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http://dx.doi.org/10.1098/rsta.2023.0223 | DOI Listing |
Alzheimers Dement
December 2024
University of the Balearic Islands, Palma de Mallorca, Spain.
Background: Reactive astrocytes and neuron death by excitotoxicity are observed in Alzheimer's disease (AD). DHA-H (2-hydroxy-docosahexaenoic acid; 2-OH-C22:6 n-3) is a molecule under development that has demonstrated therapeutic efficacy in both cellular and 5xFAD mouse model of AD. DHA-H is metabolized through α-oxidation to yield HPA (Heneicosapentaenoic acid; C21:5 n-3).
View Article and Find Full Text PDFChem Sci
December 2024
Materials Discovery Laboratory (MaD Lab), Department of Chemistry, Oregon State University Corvallis OR 97331 USA
The reaction between molybdenum(ii) acetate and 5-aminoisophthalic acid (HIso-NH) afforded [MoO(μ-O)(Iso-NH)], a novel molybdenum(v) metal-organic polyhedron (MOP) with a triangular antiprismatic shape stabilized by intramolecular N-H⋯O hydrogen bonds. The synthesis conditions, particularly the choice of solvent and reaction time, led to the precipitation of the Mo(v)-MOP in five distinct crystalline forms. These forms vary in their packing arrangements, co-crystallized solvent molecules, and counter-cations, with three phases containing dimethylammonium (dma) and the other two containing diethylammonium (dea).
View Article and Find Full Text PDFJ Am Soc Mass Spectrom
January 2025
Department of Chemistry and Chemical Biology, Indiana University─Indianapolis, Indianapolis, Indiana 46202, United States.
Electrospray ionization mass spectrometry (ESI-MS) can retain intact protein structures, but details about partially folded and unfolded protein structures during and after introduction to the gas phase are elusive. Here we use ESI-MS with chemical cross-linkers to compare denatured cytochrome structures in both solution and gas phases. Solution phase cross-linking prior to ESI captures solution phase structures, while gas phase cross-linking through ion/ion reactions in the trap cell captures gas phase structures.
View Article and Find Full Text PDFNature
January 2025
Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA.
Pre-eclampsia is a placental disorder that affects 3-5% of all pregnancies and is a leading cause of maternal and fetal morbidity worldwide. With no drug available to slow disease progression, engineering ionizable lipid nanoparticles (LNPs) for extrahepatic messenger RNA (mRNA) delivery to the placenta is an attractive therapeutic option for pre-eclampsia. Here we use high-throughput screening to evaluate a library of 98 LNP formulations in vivo and identify a placenta-tropic LNP (LNP 55) that mediates more than 100-fold greater mRNA delivery to the placenta in pregnant mice than a formulation based on the Food and Drug Administration-approved Onpattro LNP (DLin-MC3-DMA).
View Article and Find Full Text PDFRev Sci Instrum
December 2024
LaserLaB, Department of Physics and Astronomy, Vrije Universiteit Amsterdam, De Boelelaan 1105, 1081HV Amsterdam, The Netherlands.
We present a simple and easy-to-implement Graphics Processing Unit (GPU)-accelerated routine to numerically simulate the propagation of ultrashort and intense laser pulses as they interact with a medium. The routine is based on the solution of Maxwell's wave equation in the frequency domain with an extended Crank-Nicolson algorithm implemented in the Nvidia CUDA C++ programming language. The main advantages of our method are its significant speed-up factor and its ease of implementation, requiring only basic knowledge of CUDA and C++.
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