The S-phase fraction of a tumor cell population is often viewed as a general indicator of the clinical aggressiveness of that tumor. Actually, the S-phase fraction of a cancer should be interpreted as no more than an indicator of the mean duration of its mitotic cycle. The S-phase fraction of a solid tumor is difficult to measure accurately, but in principle it is a powerful predictor of the du...

Dual phase steels with different martensite volume fraction and morphology were tensile tested at a temperature range of 25 to 5500C. Stress-strain curves of all steels showed serration flow at temperatures of 250 and 3500C, and smooth flow at the other temperatures. Both yield and ultimate tensile strengths increased with increasing testing temperature up to about 450<sup...

The parametric resonance of the axial vibrations of a cantilever pipe conveying harmonically perturbed two-phase flow is investigated using the method of multiple scale perturbation. The nonlinear coupled and uncoupled planar dynamics of the pipe are examined for a scenario when the axial vibration is parametrically excited by the pulsating frequencies of the two phases conveyed by the pipe. Aw...

Objective: The genus Marrubium is used for treatment of joint pain, gout, stomach-ache and colic in Iranian Traditional Medicine. Marrubium astracanicum Jacq. (M. astracanicum) is a native species in the flora of Iran. The aim of this study was to evaluate the antinociceptive properties of various extracts of aerial parts of M. astracanicum.Materials and Methods: Antinociceptive activities of t...

In powder diffraction data analysis, phase identification is the process of determining crystalline phases in a sample using its characteristic Bragg peaks. For multiphasic spectra, we must also determine relative weight fraction each sample. Machine learning algorithms (e.g., Artificial Neural Networks) have been applied to perform such difficult tasks but typically require significant number ...