Brazil is one of the largest producers and consumers green coconut in world, with thousands units harvested destined for retail, wholesale mainly bottling industries fresh consumption beach regions, as its water basically represents greatest source interest. According to consumers, coconuts, after being consumed water, are mostly dumps sanitary landfills that accumulate material annually, a ver...

The birth control pills (contraceptive) are safe, in some cases the combination of contraceptive pill can increase your risk health. side effects include heart attack, stroke, blood clots, and liver tumors. In very rare cases, they lead to death. health problems were minimal or no recorded while using herbal contraceptives. present investigation was focused on preliminary phytochemical analysis...

various novel techniques including ultrasound-assisted extraction, microwave-assisted extraction and supercritical fluid extraction have been developed for the extraction of medicinal plants in order to shorten the extraction time, decrease the solvent consumption, increase the extraction yield, and enhance the quality of extracts. this review was conducted to introduce and compare the conventi...

The NucliSens Extractor is an automated nucleic acid isolation system based on guanidinium thiocyanate (GuSCN)-silica extraction technology. The system has been validated for the isolation of human immunodeficiency virus (HIV) and hepatitis C virus (HCV) RNAs from human samples in combination with nucleic acid sequence-based amplification- and reverse transcription-PCR-based methods. We evaluat...

The antimalarial artemisinin, the active principle of the plant Artemisia annua L., was extracted by Supercritical Fluid Extraction (SFE). Soxhlet extraction was studied as comparison processes. The extracts were analyzed by the indirect method GC-FID. The maximal extraction yield (1.82%DW) was obtained by SFE at T=40°C, P=200bar, CO2flow=4.5g/min, and 20% ethanol as modifier. The artemisinin e...

Abstract A construction of Bourgain [Bou05] gave the first 2-source extractor to break the min-entropy rate 1/2 barrier. In this note, we write an exposition of his result, giving a high level way to view his extractor construction. We also include a proof of a generalization of Vazirani’s XOR lemma that seems interesting in its own right, and an argument (due to Boaz Barak) that shows that any...

This paper reviews our on going e orts on designing a real time vision system The system consists of a real time feature extractor and a relaxation network The lter system is capable of performing multiple D non separable lters multi resolution decomposition and steerable transform The relaxation network is capable of performing various relaxation di usion and minimization operations The paper ...