The beneficial effects of fluoride on human oral health are well studied. There are numerous studies demonstrating that a small amount of fluoride delivered to the oral cavity decreases the prevalence of dental decay and results in stronger teeth and bones. However, ingestion of fluoride more than the recommended limit leads to toxicity and adverse effects. In order to update our understanding ...

ALICEROBBIN ABSTRACT THISARTICLE EXAMINES SELECTED ECONOMIC and social indicators of our multiracial and multiethnic society at the end of the twentieth century to provide an information base for wise decisions about effective library services. The statistical profile describes the demography, economic well-being , and educational attainment of the principal racial and Hispanic origin groups. T...

It was Dr Vincent Zigas who first started research into kuru and Dr Carleton Gajdusek joined him later. Vincent would drop us off and pick us up with his Landrover and we would patrol through the kuruaffected region with Carleton. Vincent was from Europe and we had great difficulty in understanding his Tok Pisin. He knew this, so he would purposely talk in a way that made us laugh. He was a goo...

in this paper we investigate a nonlinear evolution model described by the rosenau-kdv equation. we propose a three-level average implicit finite difference scheme for its numerical solutions and prove that this scheme is stable and convergent in the order of o(τ2 + h2). furthermore we show the existence and uniqueness of numerical solutions. comparing the numerical results with other methods in...

background: score worksheets have been extracted for phd candidates in epidemiology, microbiology and parasitology for the academic year of 1386-87. the main objective in this study is the impact and importance of different subjects on the discrimination results of admission. methods: extracted scores from worksheets are analyzed by minitab15 statistical toolbox. the regression values of differ...