From quantum chemistry to dissociation kinetics: what we need to know"79

Quantum mechanics investigation of acid dissociation constant of carboxylic acids in aqueous solution

According to the Bronsted definition, any compound which has a hydrogen atom is an acid, since itmay be lost as a proton. A thermodynamical cycle is proposed to calculate absolute pKa values forBronsted acids in aqueous solution. The equilibrium of dissociation of a Bronsted acid depends onthe interaction of the acid and its conjugate base with solvent molecules. There fore the pKa valuedepends...

Coronavirus disease 2019 (COVID-19): What we need to know (In Press)

I Know It When I See It: The Challenges of Addressing Corruption in Health Systems; Comment on “We Need to Talk About Corruption in Health Systems”

In this commentary, I argue that corruption in health systems is a critical and legitimate area for research in order to strengthen health policy goals. This rationale is based partly on citizen demand for more accountable and transparent health systems, along with the fact that the poor and vulnerable suffer the most from the presence of corruption in health systems. W...

Quantum dots of CdS synthesized by micro-emulsion under ultrasound: size distribution and growth kinetics

Quantum dots of CdS with hexagonal phase were prepared at relatively low temperature (60 oC) and short time by micro-emulsion (O/W) under ultrasound. This study was focused on the particle size distribution and the growth kinetics. The particle size distribution obtained from the optical absorption edge. It was relatively symmetrical with sonication time. In addition, an agreement was observed ...

Diagnostic and therapeutic challenges for dermatologists: What shall we do when we don’t know what to do?

What shall we do when we have done everything we could for the diagnosis and treatment of a patient, but were not successful? What shall we do when there is no definite treatment for a patient? What shall we do when we have no diagnosis or treatment for a patient? Some useful suggestions are presented here to get rid of these situations.