Ultrasonic accelerated Knoevenagel condensation by magnetically recoverable MgFe2O4 nanocatalyst: A rapid and green synthesis of coumarins under solvent-free conditions.

The novel and green procedure to synthesis of 3-substituted coumarins was performed through the Knoevenagel condensation between various salicylaldehydes and 1,3-dicarbonyl compounds by MgFe2O4 nanoparticles as an efficient catalyst under solvent-free condition using ultrasound irradiation. The nano catalyst was easily recovered by an external magnet and reused for several times without significant loss of its catalytic performance. Compare to the previous works, this progressive protocol have advantages such as simple workup, high yields of coumarins, solvent free condition, environmentally benign and short reaction times.

Short term effects of kinesio taping on pain and functional disability in young females with menstrual low back pain: A randomised control trial study.

BACKGROUND: Menstrual low back pain (LBP) in young females can reduce daily activity and cause functional disability, while the progressive application of kinesio-taping (KT) on pain reduction and functional correction has been stated. OBJECTIVE: This study has been designed to investigate the efficacy of the lumbar vertebral column KT in young female with menstrual LBP. METHODS: Thirty-two young females with menstrual LBP participated in this crossover study and were assigned randomly in two separate groups. The first group received KT during their first menstrual cycle and No-KT in their next menstrual, while the other group had no KT during the first mentrual cycle and received KT during the next menstrual cycle. The primary outcome measurements included the visual analogue scale (VAS) of pain, Oswestry disability index and McGill pain questionnaire score which were planned to collect at the end of the third day of the menstrual cycle. RESULTS: Comparing pain and disability between two conditions, of menstrual cycle with KT and menstrual cycle without KT, revealed significant reduction in VAS (mean change = 1.7; 95%CI = 0.6 to 2.8; P= 0.005), McGill pain score (mean change = 20.1; 95%CI = 8.7 to 31.3; P= 0.001) and functional disability (mean change = 12.3; 95%CI = 7.2 to 17.5; P< 0.0001) by using KT during menstrual cycle. CONCLUSIONS: Results showed that KT may effectively reduce pain and disability. The findings may support the clinical application of kinesiotaping in young females with menstrual LBP.

Sonochemically synthesis of arylethynyl linked triarylamines catalyzed by CuI nanoparticles: a rapid and green procedure for Sonogashira coupling.

A simple and green method was performed to the preparation of copper iodide nanoparticles by ultrasound approach. Consequently the synthesis of aryl ethynyl linked triarylamines was carried out through the Sonogashira coupling between iodo-substituted triarylamine and aryl acetylenes in the presence of CuI nanoparticles/Pd(PPh3)2Cl2 as an efficient catalytic system and triethylamine as the base under ultrasonic irradiation. Good to excellent yields of products and short reaction times are some of the important advantages of this solvent free protocol which were attained by both nano CuI and ultrasound conditions.