abstract despite sophisticated conventional medical treatment and the continued development and improvement of coronary revascularization modalities in recent years, a significant number of patients still suffer from refractory angina pectoris and cannot be successfully managed. advances in therapeutic options have led to an increase in the average of life expectancy even in such no-option pati...

hypereosinophilic syndromes were a group of divergent disorders united by overproduction of eosinophils and the several organ damages ascribed to this persistent eosinophilia. among all the presenting symptoms, gastrointestinal symptoms were the least common. we were reporting a 21 year old man with a 2 year history of refractory ascites, hepatomegaly, portal and hepatic veins thrombosis and cu...

Metal corrosion leads to serious resource waste and economic losses, in severe cases, it can result catastrophic safety incidents. As a result, proper coatings are often employed separate metal alloys from the ambient environment thus prevent or at least slow down corrosion. Among various materials, high-entropy alloy (HEA coating) have recently received lot of attention due their unique entrop...

Submicron tantalum pentoxide ridge and channel optical waveguides and microring resonators are demonstrated on silicon substrates by selective oxidation of the refractory metal, tantalum. The novel method eliminates the surface roughness problem normally introduced during dry etching of waveguide sidewalls and also simplifies fabrication of directional couplers. It is shown that the measured pr...

In the report, we describe a case of refractory benign esophageal strictures from esophageal cancer after an operation for the placement of three partially covered self-expanding metal stents (SEMSs), which were all embedded in the esophageal wall. Using the stent-in-stent technique, the three embedded SEMSs were successfully removed without significant complications. To the best of our knowled...

We found that silver, either as silver metal or silver chloride, exerted toxic effects on the smooth muscle of isolated cannulated hamster cheek pouch arterioles. Silver initially stimulated the smooth muscle, producing a marked vasoconstriction. The vessels then dilated back to control diameters. Once the arterioles began to dilate, they became refractory to norepinephrine or potassium stimula...

In this work, a new design principle, i.e. doping with refractory metal particles low diffusion rate to prevent the formation of cracks and improve mechanical properties bulk metallic glass (BMG) composites, was put forward. It proven that crack-free dense Mo(p)/Cu47Zr47Al6 BMG composites enhanced can be produced via LPBF. The dislocations generated in Mo release thermal stress, thereby inhibit...

purpose: to evaluate the effect of intravitreal triamcinolone acetonide (ivt) reinjection on clinical and optical coherence tomographic (oct) features in refractory diabetic macular edema (dme). methods: in an interventional case series, all ivt-treated patients enrolled in a previous clinical trial (45 subjects), were recalled for performing a new ophthalmologic examination and oct. suitable e...