In this paper, we have developed a block cipher by using the modular arithmetic inverse of a key matrix. The key matrix is generated by taking the key in the form of twenty-eight numbers, wherein each number is represented in terms of seven binary bits. The encryption is carried out by using the key matrix containing binary bits. The decryption is performed by using the modular arithmetic inver...

One hundred twenty-eight patients were examined prospectively to determine the significance of mucosal thickening seen in the paranasal sinuses during routine MR imaging of the brain. On the basis of responses to a questionnaire, each patient was categorized as symptomatic (n = 60) or asymptomatic (n = 68) for paranasal sinus disease. Patients were categorized further on the basis of the maxima...

This research project was part of a planned initiative at the University of Pittsburgh School of Dental Medicine to incorporate lecture recordings as standard educational support technologies. The goal of an institutional survey was 1) to gather current data about how dental educators across the United States and Canada use lecture recordings; 2) determine dental educators' perceived value and ...

One hundred and twenty-eight children, admitted for active treatment of ganglia around the wrist, hand, ankle or foot are reviewed. The methods of treatment are discussed. The most satisfactory results were obtained by excision (7-2% recurrence) and incision with a tenotome (11% recurrence). The overall recurrence rate was 19%. The ganglia around the wrist had the highest rate of recurrence.

UNLABELLED In February 2006, there was a renewed effort to encourage reporting of adverse drug reactions (ADRs) in Jamaica. It involved renaming the process the "PharmWatch" programme and revising the reporting form. OBJECTIVES The aims of this study were to assess the attitudes of community pharmacists to ADR reporting and to assess their utilization of the PharmWatch programme. METHODS Th...

The objective of this study was to replicate the association between atypical handedness and psychosis-proneness in a representative sample of adolescents from the general population. It expands previous studies by (1) analyzing a variety of atypical handedness indexes (left, mixed, ambiguous, and inconsistent), (2) measuring comprehensively the multidimensionality of psychosis-proneness, and (...

A randomised double-blind placebo-controlled trial of intravenous methylprednisolone versus oral methylprednisolone at equivalent high dose was carried out on 35 patients with an acute relapse of multiple sclerosis (MS). After baseline evaluation each was randomly allocated to oral treatment and intravenous placebo or intravenous treatment and oral placebo, receiving 500 mg of methylprednisolon...

The International Society for Hip Arthroscopy (ISHA) Annual Scientific Meeting is at the forefront of informing today's orthopaedic surgeons and society of the rapid advances in the exponentially growing field of hip arthroscopy. The purpose of this study was to evaluate and observe any trends in the level of clinical evidence in the papers and posters presented at the ISHA Annual Scientific Me...

Fifty-eight Compylobacter strains were isolated from children with diarrhoea at various health centres in Lagos and from healthy chicken. Twenty-nine strains of Campylobacter were isolated from humans, while the same number were isolated from chicken. The strains were biotyped using the modified Preston biotype scheme. The Preston biotyping results have been compared with the results of Penner ...

BACKGROUND The purpose of this study was to compare phacoemulsification energy parameters during torsional phacoemulsification with or without the use of intelligent phacoemulsification (IP) software. METHODS One hundred and twenty-eight eyes with nuclear grades ranging from 1 to 5 were enrolled in this randomized prospective study. Operated eyes were divided into two groups, ie, those operat...