Stevioside is natural non-caloric sweetner isolated from Stevia rebaudiana BERTONI, which has been used as a non-caloric sugar substitute in Japan. Pezzuto et al. demonstrated that steviol shows a dose-dependent positive response in forward mutation assay using Salmonella typhimurium TM677 in the presence of metabolic activation system (Aroclor induced rat liver S9 fraction). Our studies were c...

Independent experimental manipulation of subjective intensity and hedonic tone is required if one wants to study their separate effects on brain activity and behavior. This is problematic because hedonic tone and subjective intensity are related, leading to a pleasantness change each time the stimulus intensity is altered. In the present study, a solution to this problem was explored by combini...

Tetramethyl lead (TML) has recently been adopted as an antiknock substance in gasoline. In some industries, tetramethyl lead has been substituted for tetraethyl lead (TEL) mixture or "ethylfluid". This recent development is the result of technical research which has shown that there is a more uniform octane distribution in all light and heavy fractions of gasoline in the combustion cylinders wi...

the molecular weight effects diffusion of molecules in interface laminar flow form a microfluidic channel. Two mixtures PS with anisole and PEG were used to evaluate effect on separation. Also, separation low substance from mixture high is proved experimentally. However, remained difficulty. More information about channel can be applied polymer science fields.

The study reported in this manuscript used a mixture item response model with data from the Youth Risk Behavior Survey 2009 (N = 16,410) to identify subtypes of adolescents at-risk for engaging in unhealthy behaviors, and to find individual survey items that were most effective at identifying such students within each subtype. The goal of the manuscript is twofold: (1) To demonstrate the utilit...

peribulbar anesthesia is widely applied in cataract surgeries. the aim of this study was comparing the effect of using atracourium, cis-atracourium, and placebo as adjuvant agents to the local anesthetic substance on peribulbar-induced akinesia in cataract surgeries. the study was double-blind randomized clinical trial, among the patients candidate for the cataract surgery who were hospitalized...

The effect of tripeptide Gly-Pro-Hyp on the central nervous system was studied. The peptide Gly-Pro-Hyp is a main component of the mixture of collagen type I degradation products obtained by 6-h digestion with bacterial collagenase. The investigated peptide in the doses 1 microgram, 2 micrograms, and 5 micrograms significantly reduces the psychomotor activity of animals, intensifies haloperidol...

In this research, it is intended to identify the concentration of soot in exhaust emissions L-300 diesel engine by adding an additional substance form methanol CH3OH. The research method study used experimental with help a smoke tester test motorized vehicles. experiment was carried out at night using different mixtures and where each mixture will be 8 times collect data. Experiments on: fuel n...

The interpretation of mixed pixels is a key factor in the analysis of hyperspectral imagery. Mixed pixels are a mixture of more than one distinct substance, and exist for one of two reasons. Firstly, if the spatial resolution of the sensor is not high enough to separate different materials, these can jointly occupy a single pixel, and the resulting spectral measurement will be a composite of th...

Few cases, if any, of death from drinking diethylene glycol have been reported in this country. This substance is, of course,, largely used as an antifreeze fluid in radiators of rmotor-cars, and is sold under a variety of trade names in this country, in America, and probably elsewhere , without any restrictions. There is little or no mention of the toxicity of this substance in British literat...