In the present communication few problems in the area of Raman and Brillouin instabilities in piezoelectric materials with strain dependent dielectric constant (SDDC) was proposed. The stimulated Brillouin scattering and resulted instability provide a unique tool for the study of acoustic domains since it provide a mean of following the evolution of a particular frequency component propagating ...

The importance of arsenic detection techniques has received significant attention of researchers during recent years due to its carcinogenic effects on human health through drinking water even at low concentration. There are various arsenic detection techniques used in laboratory that have detection limit below 1μg/L viz., Hydride Generation Atomic Absorption Spectroscopy (HGAAS), Graphite Furn...

Staphylococcal enterotoxin B (SEB), an exotoxin produced by staphylococcal aureus, is commonly associated with food poisoning and capable of triggering flu-like symptoms resembling those of endotoxins – such as lipopolysaccharide (LPS) released from gram-negative bacterial cell walls. By comparing the host response to these distinct toxins on a genetic level, a set of genes can be identified to...

Groundwater in Bangladesh is contaminated with Arsenic, which occurs naturally in alluvial and deltaic sediments. The first official detection in 1993 and subsequent confirmation after 1995 of high levels of Arsenic in numerous shallow and deep wells in various parts of the country has raised serious health concerns. Recent investigations, though incomplete, confirm that the occurrence of Arsen...