On Contra -wgrα-Continuous and Almost Contra-wgrα-Continuous Functions

In this paper a new class of function called contra-wgrα continuous function is introduced and its properties are studied. Further the notion of almost contra wgrα-continuous function is introduced

PHYTOCHEMICAL, ANTIBACTERIAL AND ANTIOXIDANT STUDIES ON LEAF EXTRACTS OF PIPER BETLE L.

Objective: In the present research, a clear systematic investigation of antibacterial and antioxidant potential of ambadi variety of P. betle of Mysore region has been carried out.Methods: Antibacterial activity of aqueous and solvent extracts of Piper betle L. was evaluated by agar cup diffusion and disc diffusion methods against some common pathogenic bacteria. The antioxidant property of all the solvent extracts were evaluated by diphenyl picryl hydrazyl (DPPH), nitric oxide (NO) and hydrogen peroxide scavenging assay. The IC50 values were calculated and compared with standard BHT and AA.Results: The results indicated that methanol and chloroform extracts of this variety recorded significant antibacterial activity and all the extracts recorded good radical scavenging capacity. Phytochemical analysis revealed that phenols, tannins, flavanoids, glycosides and proteins are present in aqueous, methanol and petroleum ether extracts.Conclusion: The results obtained in this study clearly indicate that P. betle extracts has a significant potential to use as antibacterial agent. The free radical scavenging capability by DPPH was better and IC50 value found was lesser than the standard used for all the extracts, which suggest that P. betle extracts have potent antioxidant activity. The solvent extracts are effective against free radical mediated diseasesÂ

Green synthesis of magnesium oxide nanoparticles and their antibacterial activity

1210-1215Nanotechnology has prospects of opening new avenues to fight and prevent diseases using atomic-scale tailoring of materials. As the nano revolution emerges, it is imperative to develop “nano‑naturo” links between nanotechnology and green domains of the nature. The present investigation describes the mangrove Rhizophora lamarckii’s property of synthesizing magnesium oxide nanoparticles . The newly synthesized magnesium oxide nanoparticle morphology is nanohexagonal and spherical. The particles range in dimensions between 20 and 50 nm and are crystalline in nature. The functional groups of the mangrove, amine, and alkane are found to act as reductants and stabilizers. The newly synthesized MgO nanoparticles are found to have potent antibacterial activity

Dental Practitioners’ Opinions and Methods in the Management of Oral Mucosal Lesions and TMJ Disorders in Dakshina Kannada District: A Questionnaire Based Survey

INTRODUCTION: Oral mucosal lesions and temperomandibular joint (TMJ) disorders are important areas of concern in the present dental practice due to their increasing prevalence. Timely management is important as it aids in maximal prognosis.AIMS AND OBJECTIVES: The aim of the study was to determine the awareness of dental practitioners in Dakshina Kannada district of Karnataka, regarding various aspects of oral mucosal lesions and TMJ disorders. And also to know their interest in managing such disorders.MATERIALS AND METHODS: A self- administered questionnaire was constructed and given to dental practitioners, selected through multistage cluster random sampling method; from Dakshina Kannada district. Chi-square test was performed and the level of significance was set at p < 0.05.RESULTS: The majority of dental practitioners had a dental practice of duration five to ten years. Many of the respondents (72%) indicated that oral ulcers are the most common mucosal lesions and prescribed topical anaesthetics for these. The investigations suggested were blood investigations (24%) for various oral mucosal lesions and radiographs (20%) for TMJ disorders. Different pharmacological treatments provided by the majority of the respondents were topical anaesthetics and multi vitamin supplements. About 34% dental practitioners routinely refer the patients to specialty practitioners.CONCLUSION: The present study shows that there should be emphasis on workshops and various other awareness programs for general dental practitioners for better understanding of the subject and about the latest protocols regarding referral of the patients to specialists

N-(3-Chloro­benzo­yl)-3-nitro­benzene­sulfonamide

In the title compound, C13H9ClN2O5S, the dihedral angle between the two benzene rings is 83.5 (1)°. In the crystal, mol­ecules are linked via N—H⋯O(S) hydrogen bonds into helical chains running along the b axis

N-(3-Chloro­benzo­yl)-2-methyl­benzene­sulfonamide

In the title compound, C14H12ClNO3S, the N—H bond in the C—SO2—NH—C(O) segment is anti to the C=O bond. Further, the C=O bond and the meta-Cl atom in the benzoyl ring are also anti to each other. The dihedral angle between the sulfonyl and the benzoyl benzene rings is 72.4 (1)°. In the crystal, mol­ecules are linked by pairs of N—H⋯O hydrogen bonds, forming inversion dimers

Frequent Itemset Generation using Double Hashing Technique

AbstractIn data mining, frequent itemsets plays an important role which is used to identify the correlations among the fields of database.In this paper, we propose a new association rule mining algorithm called Double Hashing Based Frequent Itemsets, (DHBFI) in which hashing technology is used to store the database in vertical data format. This double hashing technique is mainly preferred for avoiding the major issues of hash collision and secondary clustering problem in frequent itemset generation. Hence this proposed hashing technique makes the computation easier, faster and more efficient.Also this algorithm eliminates unnecessary redundant scans in the database and candidate itemset generation which leads to less space and time complexity

4-Chloro-N-(3-methyl­benzo­yl)benzene­sulfonamide monohydrate

In the title compound, C14H12ClNO3S·H2O, the dihedral angle between the sulfonyl and benzoyl benzene rings is 84.4 (2)°. In the crystal, every water mol­ecule forms four hydrogen bonds with three different mol­ecules of 4-chloro-N-(3-methyl­benzo­yl)benzene­sulfonamide. One of the water H atoms forms a bifurcated hydrogen bond with both the sulfonyl and the carbonyl O atoms of the same mol­ecule. Mol­ecules are linked into layers in the ab plane through N—H⋯O and O—H⋯O hydrogen bonds

N-Benzoyl-2-nitro­benzene­sulfonamide

In the title compound, C13H10N2O5S, the N—C bond in the C—SO2—NH—C segment has gauche torsion angles with respect to the S=O bonds. The conformation between the N—H bond and the ortho-nitro group in the sulfonyl benzene ring is syn. The mol­ecule is twisted at the S—N bond with a torsion angle of −63.4 (2)°. The sulfonyl benzene ring is tilted by 77.1 (1)° relative to the —SO2—NH—C—O segment. The dihedral angle between the sulfonyl and the benzoyl benzene rings is 88.6 (1)°. In the crystal, pairs of N—H⋯O(S) hydrogen bonds link the mol­ecules into inversion dimers, which are linked by weak C—H⋯O and C—H⋯π inter­actions along the b axis