Inactivation of Vibrio parahaemolyticus in drinking water

A study was conducted in the Cochin area of India to determine the effect of drinking water on Vibrio parahaemolyticus, a bacterium that contaminates fish harvested from marine and estuarine environments. Times of fresh-water exposure required to inactivate these bacteria are given. Findings indicate that the washing of fish and equipment used to handle the fish in drinking water may decrease in the number of viable Vibrio cells and thus aid in prevention of food poisoning

Quintuple product identity as a special case of Ramanujan's 1ψ1 summation formula.

In this note we observe an interesting fact that the well-known quintuple product identity can be regarded as a special case of the celebrated 1ψ1 summation formula of Ramanujan which is known to unify the Jacobi triple product identity and the q-binomial theorem

Ratios of Ramanujan's Theta Function ψ and Evaluations

In this paper, we establish several new modular equations of degree 9 using Ramanujan's mixed modular equations. We also establish several general formulas for explicit evaluations of ratios of Ramanujan's theta function

Some Identities for Ramanujan-Göllnitz-Gordon Continued Fraction

In this paper, we obtain certain P--Q eta--function identities, using which we establish identities providing modular relations between Ramanujan-Göllnitz-Gordon continued fraction H(q) and H(q^n) for n= 2, 3, 4, 5, 7, 8, 9, 11, 13, 15, 17, 19, 23, 25, 29 and 55

New identities for Ramanujan's cubic continued fraction.

In this paper, we present some new identities providing relations between Ramanujan's cubic continued fraction V(q)V(q) and the other three continued fractions V(q9)V(q9), V(q17)V(q17) and V(q19)V(q19). In the process, we establish some new modular equations for the ratios of Ramanujan's theta functions. We also establish some general formulas for the explicit evaluations of ratios of Ramanujan's theta functions

Effect of Endophytic and Plant Growth Promoting Rhizobacteria against Foot Rot Disease of Piper nigrum L.

— Crop loss in black pepper (Piper nigrum L.) due to pathogenic diseases is mainly induced by soil borne fungi, bacteria, nematodes and viruses. Foot rot disease caused by Phytophthora capsici Leonian is a major production constraint in South India and other south East Asian countries. Combination of biocontrol agents that are compatible with each other is one of the emerging strategies to control plant disease and pest. The present study was designed to evaluate the protective effects of compatible endophytic fungal (Trichoderma harzianum Th16 and Th5) and rhizobacterial (Pseudomonas fluorescens Pf1) strains against pepper foot rot disease. Our results showed that T. harzianum (Th16 and Th5) and P. fluorescens (Pf1) were compatible and effectively inhibited the growth of P. capsici. The application of endophytic and rhizobacterial strains, alone and in combination in green house and field conditions were found to be effective in controlling the foot rot of pepper caused by P. capsici by inducing systemic resistance (ISR) as evidenced by enhanced activities of PO, PPO, PAL, β-1,3-glucanase, chitinase and total phenolics involved in the synthesis of phytoalexins thereby promoting the growth of plants. However, combinations of Th16 + Th5 + Pf1 were more effective than individual treatments. The findings suggest that synergistic interactions of biocontrol agents may be responsible for the management of foot rot of pepper caused by P. capsici

On some New Modular Equations and their Applications to Continued Fractions

In this paper, we obtain some new modular equations of degree2. We obtain several general formulas for the explicit evaluations of the Ramanujan's theta{function. As an application, we establish somenew modular relations for Ramanujan{Gollnitz{Gordon continued frac-tion H(q) with H(qn), Ramanujan{Selberg continued fraction V (q) with V (qn) and Eisenstein continued fraction E(q) with E(qn) for n =6; 10; 14 and 16. We also establish their explicit evaluations

Certain new modular identities for Ramanujan's cubic continued fraction.

In this paper, first we establish some new relations for ratios of Ramanujan’s theta functions. We establish some new general formulas for explicit evaluations of Ramanujan’s theta functions. We also establish new relations connecting Ramanujan’s cubic continued fraction V (q) with four other continued fractions V (q 15), V (q 5/3), V (q 21) and V (q 7/3)

On some new mixed modular equations involving Ramanujan's theta-functions

In his second notebook, Ramanujan recorded altogether 23 P–Q modular equations involving his theta functions. In this paper, we establish several new mixed modular equations involving Ramanujan’s theta-functions ϕ and ψ which are akin to those recorded in his notebook

Antibiotic sensitivity of Staphylococcus aureus strains isolated from fishery products

During the course of an investigation on the incidence of Staphylococcus aureus contamination in frozen crab meat, frozen prawns and dried fishes from Cochin, 116 strains of S. aureus were isolated. The sensitivity of the isolated strains towards nine antibiotics showed that all the S. aureus strains were sensitive to kanamycin and streptomycin (100%). Sensitivity to other antibiotics like chloramphenicol, polymyxin-B, erythromycin, tetracycline, neomycin, penicillin and ampicillin were shown by 98.28, 93.10, 87.93, 68.10, 67.24, 56.90 and 55.17 percent of the isolates respectively