Studies on diatoms along the South west coast of India in Relation to the hydrological Parameters

The distribution and abundance of diatoms along the South west coast of India in relation to the hydrological parameters was studied by selecting three stations namely, Thalassery, Cochin and V izhinj am. The present study has been carried out with a view to study the diatoms of selected areas along the south west coast of India in relation to the hydrographic factors. Qualitative and quantitative studies were made along the nearshore and inshore areas following the standard procedures. Regression analysis was also conducted to study the various factors contributing the growth of diatoms along the near shore and inshore areas of the three selected stations. It was found that the hydrological parameters showed fluctuation from season to season and within season. Diatoms along the nearshore areas showed abundance and dominance during the monsoon season followed by the post monsoon season, while that along the inshore areas are having the highest dominance and abundance during post monsoon followed by monsoon season. The regression analysis indicates that the diatom population was contributed by different factors at different stations indicating that they are all independent. 13

Isolation and culture of protoplasts from agar yielding seaweed Gracilaria edulis (Gmelin) Silva

Viable protoplasts werl! isokn~d [rom cuJt ure~ thallus of ag<J.r y~ilding red ::)~aweed GI"Gciiarill eduhs using an cnzymc mixture of 3% ONOZUKt"\ R-IO cdlulase 3% R-\ 0 maceroz),lll c, 1% agarasc and 1% pectinase in a seawr!cd protoplast washing mediulI1 (SPW) containing seawater and 1 M mannitol. After repeated washing wiih sterile ml:dium, the pro~op l il $IS were maintained in light and attempts were made on eJ..::ctrofllsioll of protopl;J$ts

Evaluation of pharmacological activity of chadraprabha vati on serum of albino wistar strain rats

The current study is to develop the acute and sub-acute toxicity profile of some ayurvedic Bhasma and un-derstand the side effects due to the presence of heavy metals. Chandraprabha vati pill were weighed, powdery and suspended in water had made into liquid formulation. The animals were classified and treated with the doses of Chandraprabha vati (50and five hundred mg/kg) in rat. The dose was calculat-ed by extrapolating the equivalent human dose (1 and ten times) and was administered orally between ten and eleven after median daily for twenty eight days, during alylin a very volume not exceeding one ml/100 g rat weight. Blood was collected on seven, fourteen and twenty eight days, later they were sacri-ficed for histopathological studies

Dunaliella salina – an unconventional live feed

Live feeds play an important role in aquaculture operation. Presently, the groups of live feeds employed in the culture systems are limited to afew species ofphyto and zooplankters. Dunaliella salina, (greenmicroalga), a member of Chlorophyceae, is an unconventional live feed. The culture of this species is presently limited to laboratory experimental stage only. In view of the paucity of studies on the culture and utilization of Dunaliella salina, the present investigation was undertaken to explore and estimate the potential use of this species. The results of rearing of Juvenile clams with Dunaliella as live feeds are presented and discussed

Bio-nanotechnology application in wastewater treatment

The nanoparticles have received high interest in the field of medicine and water purification, however, the nanomaterials produced by chemical and physical methods are considered hazardous, expensive, and leave behind harmful substances to the environment. This chapter aimed to focus on green-synthesized nanoparticles and their medical applications. Moreover, the chapter highlighted the applicability of the metallic nanoparticles (MNPs) in the inactivation of microbial cells due to their high surface and small particle size. Modifying nanomaterials produced by green-methods is safe, inexpensive, and easy. Therefore, the control and modification of nanoparticles and their properties were also discussed

Constraints on the χ_(c1) versus χ_(c2) polarizations in proton-proton collisions at √s = 8 TeV

The polarizations of promptly produced χ_(c1) and χ_(c2) mesons are studied using data collected by the CMS experiment at the LHC, in proton-proton collisions at √s=8  TeV. The χ_c states are reconstructed via their radiative decays χ_c → J/ψγ, with the photons being measured through conversions to e⁺e⁻, which allows the two states to be well resolved. The polarizations are measured in the helicity frame, through the analysis of the χ_(c2) to χ_(c1) yield ratio as a function of the polar or azimuthal angle of the positive muon emitted in the J/ψ → μ⁺μ⁻ decay, in three bins of J/ψ transverse momentum. While no differences are seen between the two states in terms of azimuthal decay angle distributions, they are observed to have significantly different polar anisotropies. The measurement favors a scenario where at least one of the two states is strongly polarized along the helicity quantization axis, in agreement with nonrelativistic quantum chromodynamics predictions. This is the first measurement of significantly polarized quarkonia produced at high transverse momentum