Photobiomodulation therapy combined with static magnetic field is better than placebo in patients with fibromyalgia: a randomized placebo-controlled trial.

Background: Fibromyalgia is a syndrome characterized by generalized chronic pain and tenderness in specific areas. Photobiomodulation therapy (PBMT) using low-level laser therapy and/or light emitting diode therapy is an electrophysical agent that can be used alone or together with a static magnetic field (PBMT-sMF) to promote analgesia in several health conditions. Little evidence exists regarding the effects of using PBMT and PBMT-sMF in patients with fibromyalgia; this evidence is conflicting.

Effect of acetylated starch on the development of peanut skin-cassava starch foams.

Cassava starch was modified by acetylation to obtain modified starches with a degree of substitution (DS) of 0.5 and 1.5.

Study of interactions between cassava starch and peanut skin on biodegradable foams.

The present work reports the effects of adding an agro-industrial residue (peanut skin) to cassava starch-based foams developed by thermopressing process. For this purpose, foams composed of cassava starch (CS foams) and cassava starch added of 24% (w/w) of peanut skin (CS/PS foams) were compared regarding their chemical structures, thermal, morphological and mechanical properties, moisture sorption isotherms, contact angle, and biodegradation. Results of dynamic mechanical analysis (DMA) showed the addition of peanut skin reduced the stiffness due to the increase of mobility of the starch chains.

Recovery of cobalt from spent lithium-ion batteries using supercritical carbon dioxide extraction.

Continuing technological development decreases the useful lifetime of electronic equipment, resulting in the generation of waste and the need for new and more efficient recycling processes. The objective of this work is to study the effectiveness of supercritical fluids for the leaching of cobalt contained in lithium-ion batteries (LIBs). For comparative purposes, leaching tests are performed with supercritical CO2 and co-solvents, as well as under conventional conditions.