statement of problem: dental plaque is the main source for dental caries and there is no proper vaccine that can affect dental plaques. objectives: daily use of an efficient anti-plaque product can be very beneficial in plaque control and, thus, prevention of caries. this study aims to evaluate the antibacterial effects of four products of chlorhexidine and fluoride on two types of cariogenic b...

W e propose a coverage metric and a two-pass test generation method f o r path delay faults in combinational logic circuits. The coverage is measured f o r each line with a rising and a falling transition. However, the test criterion is different f r o m that of the slow-to-rise and slow-to-fall transition faults. The test, called “line delay test”, as a path delay test for the longest sensitiz...

This study investigated the comparative efficiency of computer-assisted instruction (CAI) and traditional teaching methods on tenth-graders’ learning of earth science in Taiwan. A total of 151 students enrolled in four earth science classes participated in this pretest/post-test controlgroup experiment. Experimental-group students learned earth science concepts through the CAI, whereas comparis...

We present an Extended Quadratic Frobenius Primality Test (EQFT), which is related to the Miller-Rabin test and the Quadratic Frobenius test (QFT) by Grantham. EQFT is well-suited for generating large, random prime numbers since on a random input number, it takes time about equivalent to 2 Miller-Rabin tests, but has much smaller error probability. EQFT extends QFT by verifying additional algeb...

INTRODUCTION Several rapid diagnostic tools for malaria are currently available in local markets. However, diagnostic accuracy varies widely. The present study was conducted to evaluate a cheaply and easily available rapid diagnostic malaria test (ParaHIT-f) in rural Tanzania. METHODOLOGY Participants presenting with fever at health centers in the Kilimanjaro and Manyara regions were eligible...