Catalytic hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL) was investigated over four different types mesoporous silica (SBA-15, MCM-48, MCM-41, and KIT-6) supported copper (5 wt.%) catalysts. The Cu incorporated into supports by a sequential impregnation method. A detailed investigation the support structure–activity correlation performance catalysts in LA conversion studied. Deta...

COMPARATIVE EVALUATION OF SPECIFIC ACTIVITY OF CRUDE AND PARTIALLY PURIFIED LIPASE PREPARATION FROM LIPOLYTIC BACTERIA Dr. Kanika Sharma and Madhu Rathore* Address for Correspondence Microbial Research Laboratory, Department of Botany, University College of Science, M.L.S. University Udaipur, Rajasthan – 313001, India E-mail: [email protected] ABSTRACT Most of the medical and commercial ...

While control banding has been identified as a suitable framework for the evaluation and the determination of potential human health risks associated with exposure to nanomaterials (NMs), the approach currently lacks any implementation that enjoys widespread support. Large inconsistencies in characterisation data, toxicological measurements and exposure scenarios make it difficult to map and co...

In ethanomedicinal practices the the tradicinal healers use the roots of Cissampelos pareira in the treatment of various ailments related to urinary problems, skin infections,in tumor inhibitor activity,antibacterial, antimalarial, diuretic activity and anticonvulsant activity etc. Macroand microscopical characters, behaviour of drug on treatment with different chemical reagents, fluorescence a...

Keyphrases D Pharmaceutical salts-general pharmacy, physicochemical properties, bioavailability, pharmaceutical properties, toxicology, review J:J Salts, pharmaceutical-general pharmacy, physicochemical properties, bioavailability, pharmaceutical properties, toxicology, review J:J Physicochemical properties-dissolution, solubility, stability, and organoleptic properties of pharmaceutical salts,...

Laser-heated diamond anvil cell (LH-DAC) experimentation has emerged as a leading technique for materials processing at extreme pressures and temperatures. LH-DAC systems are often employed to better characterise the structure properties of in applications ranging from condensed matter physics geophysical research planetary science. This article reviews related laser-based characterisation, fir...

We show that the no betting characterisation of the existence of common priors over finite type spaces extends only partially to improper priors in the countably infinite state space context: the existence of a common prior implies the absence of a bounded agreeable bet, and the absence of a common improper prior implies the existence of a bounded agreeable bet. However, a type space that lacks...

Simpson, A.K., A characterisation of the least-fixed-point operator by dinaturality, Theoretical Computer Science 118 (1993) 301-314. The paper addresses the question of when the least-fixed-point operator, in a Cartesian-closed category of domains, is characterised as the unique dinatural transformation from the exponentiation bifunctor to the identity functor. We give a sufficient condition o...

Textile materials from polyester fibres are sensitive to washing, especially at higher temperatures, due their thermoplastic properties, hydrophobic nature and sensitivity the alkaline medium. The issue of microplastic fibres’ (MFs’) release textiles is a topic that attracts attention researchers different scientific fields, since microplastics now among serious environmental risks. In this stu...

An Environmental Risk Assessment (ERA) for nanomaterials (NMs) is outlined in this paper. Contrary to other recent papers on the subject, the main data requirements, models and advancement within each of the four risk assessment domains are described, i.e., in the: (i) materials, (ii) release, fate and exposure, (iii) hazard and (iv) risk characterisation domains. The material, which is obvious...