Structure and function of proteins in aqueous medium can be altered by the presence of cosolvents such as salts or osmolytes (osmoytes: small organic compounds which maintain cellular osmotic stress). Denaturing osmolytes such as urea or denaturing salts such as guanidinium chloride (GdmCl) destabilize the functional conformations of the cellular proteins. In contrast, protein protective osmolytes such as trimethylamine N-oxide (TMAO) stabilize proteins’ native structures. In cellular environment, proteins are exposed to mixtures of many cosolvents.

Abstract

Abstract

Media Security: Great improvement in network technologies has made the Internet a convenient mode of multimedia content distribution. However, it has also increased the fear of illegal copying and redistribution. The digital rights management (DRM) technologies try to address the illegal copying and distribution concerns through cryptographic algorithms and protocols, watermarking techniques and digital licenses.

Abstract:

Quantum Nature of Light and the Photon

K Thyagarajan,
(Retired Professor of Physics, IIT Delhi, New Delhi)
Department of Physics, Bennett University, Greater Noida, UP

A brief exposition of fractional order operators and their properties is given. Further, the effectiveness of fractional calculus in dynamical system behaviour is illustrated by an example. Finally, the illposedness of the fractional inverse problems and their regularized solution are analysed.