An efficient, simple and convenient route is described for the synthesis of biscoumarin (3,3'-(arylmethylene) bis (4-hydroxy-2H-chromen-2-one)) by using of recyclable catalyst TiO2@KSF. In this Method, we synthesis biscoumarin derivatives via 3multi-component reactions (3MCRs) of two equivalent 4-hydroxycoumarin with one equivalent of aromatic aldehydes using 20 mg nano TiO2@KSF as homogeneous ...

A mild and efficient catalytic method for synthesis of 5-alkoxycarbonyl-4-aryl-3, 4dihydropyrimidin-2(1H)-ones using KSF montmorillonite as catalyst is described.

Arista Wedding Project is a family business that has officially established in October 2019, the field of creative industry especially wedding organizer. offers services specializing Islamic weddings and intimate prioritize professionalism, creativity, youthfulness. The value Impress Your Moment provides education for marriage preparation. This study aims to find Key Success Factor (KSF) throug...

The Epstein-Barr (EBV) virus induces a lytic state after infecting epithelial cells. Subsequently, there is infection of B lymphocytes with two types of cycles, latent and lytic. Apart from linkage of the EBV latent membrane protein-1 (LMP-1) with benign and malignant conditions of squamous epithelial cells, little is known about other EBV gene products that may be important in these processes ...

BACKGROUND Nephrolithiasis has been associated with hypertension, obesity and diabetes mellitus. The prevalence of adverse cardiovascular outcomes among kidney stone formers (KSF) is unknown. METHODS We examined the IV Portuguese National Health Survey for documenting possible associations between nephrolithiasis, cardiovascular diseases, diabetes and obesity in the Portuguese adult populatio...

Lauric fat cocoa butter replacer (LCBR) was produced from a blend of krabok seed fat (KSF) and coconut oil (CO). Four fat blends with different ratios of KSF/CO (20/80, 40/60, 60/40 and 80/20 (%wt)), CO, KSF and a commercial LCBR (C-LCBR) were characterized using various techniques. It was found that blend 60/40 exhibited SFC curve and crystallization/melting behavior most similar to that of C-...

With economic growth and social change, leisure activities have become a key to satisfy the public’s recreational needs. Tourism industries of leisure agricultural areas combining industry, culture, leisure, and living have transformed into a drive to boost local economies. Thus, this study aimed to probe into the development factors and conditions of international tourism levels in leisure agr...

an efficient, simple and convenient route is described for the synthesis of biscoumarin (3,3'-(arylmethylene) bis (4-hydroxy-2h-chromen-2-one)) by using of recyclable catalyst tio2@ksf. in this method, we synthesis biscoumarin derivatives via 3multi-component reactions (3mcrs) of two equivalent 4-hydroxycoumarin with one equivalent of aromatic aldehydes using 20 mg nano tio2@ksf as homogen...

With the technological changes experienced in world recent decades, society has changed as a whole, due to speed and availability of information that exists today. As student attention decreases, critical thinking Active Learning, which places at center learning process, have gained prominence. Considering growing popularity these techniques, this article proposes Engineering Education Learning...