in this research, different concentrations of xanthan and lepidium perfoliatum seed gums (0.1, 0.2 and 0.3%) were used to improve the quality and shelf-life of chiffon cake. for this purpose, specific gravity and apparent viscosity of batter, and the volume, specific volume, moisture, sensory and texture properties, crumb and crust color were examined. to investigate the effect of gums on the s...

The single-tooth restoration has become one of the most widely used procedures in implant dentistry. Improvements to the abutment implant interface design, wider implant platforms and the increased use of cemented restorations have greatly enhanced this procedure. Nonetheless, limitations in the volume of underlying bone and heavy occlusal loads, with or without parafunctional habits, still con...

Background: Gliomas are the most common primary neoplasms of the central nervous system. Relative cerebral blood volume (rCBV) could estimate high-grade Gliomas computed with dynamic susceptibility contrast MR imaging which it is artificially lowered by contrast extravasation through a disrupted blood-brain barrier. Objectives: Our intent was to clarify the usefulness of diffusion-weighted m...

Densities of aqueous solutions sulfuric acid (H2SO4) have been measured by vibrating tube densimetry at molalities m varying from 0.02 to 3.0 mol·kg–1, temperatures over the range 323.15 ≤ T/K 523.15 10 MPa pressure. These results were used calculate corresponding apparent molar volumes Vϕ(H2SO4,aq) and appear be first-ever systematic study volumetric properties this important elevated temperat...

In the characterization of polymers, size-exclusion chromatography (SEC) has become a standard technique for determining molar mass averages andmolar mass distributions (MMD) of polymers. The principle of SEC is easily understood: owing to limited accessability of the pore volume within the particles of the column packing, polymer molecules are separated according to their hydrodynamic volumes,...

Purpose: A deficit was identified in the traditional method of making homeopathic dilutions by 1:9 or 1:99 serial based on physical units mass volume. When chemical unit mole is considered, mass-based dilution nitroglycerin ethyl alcohol has a 1:48.8 molar ratio. In order to provide ratio, ratios required for formulations with lithium carbonate: lactose (diluent) and lead phosphate: are 1:41.7 ...

Partial molar volumes of aluminium chloride, aluminium sulphate and aluminium nitrate have been determined in water rich binary aqueous mixtures of tetrahydrofuran (5, 10, 15, 20% by weight of tetrahydrofuran) with the help of density measurements. The density measurements were made by using Ward and Millero method and results have been analysed by Masson’s equation and interpreted in terms of ...

The multiple regression analysis is proposed as method for presentation results of high performance liquid chromatography (HPLC), which simultaneously depends on several parameters. The coefficients of linear multiple regression model are assessed by the least square method. In this way dependent variable – retention volume – is expressed by more than one explanatory variable (i.e. by the molar...