With the growing use of ultrasound for pain management, we are interested in how to teach and practice ultrasound-guided procedures. Ethically, we should not insert a needle in a patient until after much practice on a phantom. Several types of phantoms have been introduced for ultrasound training, including water, agar/gelatin, elastomeric rubber, and meat phantoms and cadavers. The ideal phant...

Resilin is critical in the flight and jumping systems of insects as a polymeric rubber-like protein with outstanding elasticity. However, insight into the underlying molecular mechanisms responsible for resilin elasticity remains undefined. Here we report the structure and function of resilin from Drosophila CG15920. A reversible beta-turn transition was identified in the peptide encoded by exo...

This study focused on comprehensively analyzing the construction, mechanism, and design theory of Thick Rubber Bearing–Disk Spring Bearing (TNRB-DSB) system, with aim evaluating its isolation effect. Mechanical tests were conducted to examine dynamic characteristics large-span isolated structures equipped TNRB-DSBs, laminated rubber bearings (LRBs), as well responses non-isolated horizontal nat...

The European steel industry produces about 70 million tons/year of by the electric arc furnace (EAF). slag consists 15% weight produced steel, thus from perspective circular economy, it has a high potential as co-product. This research aims to assess an innovative reuse EAF filler in different polymer matrixes: thermoplastic (polypropylene), thermosetting (epoxy resin), elastomeric (nitrile but...

conclusions this study indicated that the delivery rate accuracy of elastomeric infusion pumps is preserved after repeated usage. these laboratory findings suggested that elastomeric pumps could be safely refilled in the successive days to provide postoperative analgesia. results the mean flow rate in the three series of measurements showed a gradual increase; however, the difference was not st...

of bridges are typically based on simplified analyses or empirical data from recent earthquakes. Since earthquake damage data are very scarce in the central and southeastern United States (CSUS), using analytical methods is the only feasible approach to obtain fragility curves. In 1990, bridges in the CSUS began incorporating seismic details. Some of the changes included the component design fo...