Scientific evidence is not clear regarding the use of antimicrobial mouth rinse before dental extraction to reduce bacteremia.We tested the null hypothesis that there would be no difference in the incidence of bacteremia following dental extractions in patients treated with or without chlorhexidine.We conducted a meta-analysis following the recomme
Abstract Background It is widely accepted that venous valves play an important role in reducing the pressure applied to the veins under dynamic load conditions, here such as the act of standing up.This understanding is, however, qualitative and not quantitative.The purpose of this paper is to quantify the pressure shielding effect and its variation
The Prague Spring was the culmination of a process of cultural, economic and political opening up which, despite its disappointing end, was a here turning point in the Cold War and questioned the Europe of Yalta by the way of highlighting the contradictions within the Soviet bloc and reminding the international public of the existence of a central
In this paper, a new asymmetric method is presented to encrypt and compress color images using discrete cosine transform in Fresnel domain.First, the input color image is decomposed into three channels: red, green and blue.Each channel image is converted into phase image and bonded with an amplitude mask followed by Fresnel transform to get the com