Ischemic Stroke Revealing Libman-Sacks Endocarditis: A Case Report.

Libman-Sacks endocarditis (LSE) is a characteristic but rare feature of systemic lupus erythematosus (SLE), which can be found in association with antiphospholipid syndrome (APS), exposing the patient to an increased embolism risk, particularly the occurrence of ischemic stroke. We present a case involving a 64-year-old man who was admitted for ischemic stroke accompanied by a fever. Cardiac investigation revealed mitral vegetations along with severe mitral regurgitation.

Multimodal imaging for intra-droplet gas-cavity observation during droplet fragmentation.

Herein, planar laser-induced fluorescence (PLIF) is used in combination with shadowgraphy to study water-droplet aerobreakup. The acquired shadowgraph data are in agreement with previous visualization studies but differ from the PLIF results, yielding new insights into the fragmentation process. In particular, the PLIF data reveal changes in droplet topology during fragmentation that result from the entrapment or formation of gas cavities inside the liquid phase.

Data on eosin Y solutions for laser-induced fluorescence in water flows.

Dye tracing techniques involve the tagging of a sample of water with dye, providing important qualitative and quantitative information. This article presents physical and fluorescence properties of dye solutions obtained by diluting a pharmaceutical aqueous solution of eosin Y with distilled water. Sample solutions with eosin concentrations ranging from 0 to 20 g/L were examined under various temperatures and laser powers.

High-magnification shadowgraphy for the study of drop breakup in a high-speed gas flow.

Direct observation of the droplet breakup process in high-speed gas flows is a critical challenge that needs to be addressed to elucidate the physical mechanisms underlying the fragmentation phenomenon. Here, we present a high-magnification and high-speed shadowgraph technique that allows the visualization of this process over its whole evolution and resolves detailed features of the breakup zone. The developed experimental method uses a high-speed camera equipped with a long-distance microscope.