On the Existence of the Logarithmic Correction Term in Black Hole Entropy-Area Relation

In this paper we consider a model universe with large extra dimensions to obtain a modified black hole entropy-area relation. We use the generalized uncertainty principle to find a relation between the number of spacetime dimensions and the presence or vanishing of logarithmic prefactor in the black hole entropy-area relation. Our calculations are restricted to the microcanonical ensembles and we show that in the modified entropy-area relation, the microcanonical logarithmic prefactor appears only when spacetime has an even number of dimensions.Comment: 9 Pages, No Figure

CryptHOL: Game-Based Proofs in Higher-Order Logic

ISSN:1432-1378ISSN:0933-279

The Comparison of Antifungal Effects of Methylene Chloride and Methanol Extracts of Green and Black Tea on Candida Albicans

BACKGROUND AND OBJECTIVE: Background: Candidiasis is the most common fungal infection. Nystatin is often used to treating of candidiasis that creates the problem of drug resistance and side effects. Study was performed to determine the antifungal properties of black and green tea extracts against Candida albicans. METHODS: To do this basic study, at first methylene chloride and methanolic extracts of green and black tea were prepared. Disk diffusion method and measuring the diameter of inhibition zone was used to determine anti-fungal extracts against Candida albicans. The methanolic extract at doses of 2, 4, 6, 8 and 10 mg and methylene chloride extracts with concentrations of 0.2, 0.4, 0.6, 0.8 and 1 mg per disk were used and the results compared in 24 and 48 hours. FINDINGS: Methylene chloride extracts of both type of tea create antifungal activity more than methanol extracts. The maximum antifungal activity 24 hours by a concentration of 1 mg hard methylene chloride extract was obtained and in this concentration with formation of zone inhibition 30.57±4.4 and 34.25±2.7 mm, respectively, for the methylene chloride extract of green tea and black more antifungal effect compared to Nystatin (20±1.06 mm) was established (p<0.01). CONCLUSION: The results have shown that green and black tea leaf extract can create antifungal activity effects against Candida albicans as dose -dependent manner and is more effective in the first 24 hours than the 48 hours <xm </x

Occurrence of Aflatoxin M1 in Milks of Five Animal Species in Iran: A Systematic Review and Meta-analysis

Consumption of milks contaminated with aflatoxin M1 (AFM1) may result in serious health problems in humans. In the present study, English and Persian electronic databases were comprehensively searched for publications from 2005 to 2018. Results indicated that pooled prevalence of AFM1 contamination in milks of buffalo, cow, sheep, goat, and camel were 86, 86, 42, 34, and 30%, respectively. Furthermore, average concentration of AFM1 were 78.73, 40.86, 26.71, 24.30, and 20.63 ng/L for milks in the same order. Therefore, continued monitoring of AFM1 contamination in milks and dairy foodstuffs deserves a serious governmental consideration