Differentiation of benign and malignant breast lesions by mechanical imaging.

Mechanical imaging yields tissue elasticity map and provides quantitative characterization of a detected pathology. The changes in the surface stress patterns as a function of applied load provide information about the elastic composition and geometry of the underlying tissue structures. The objective of this study is the clinical evaluation of breast mechanical imager for breast lesion characterization and differentiation between benign and malignant lesions.

Application of the dual-frequency ultrasonometer for osteoporosis detection.

The paper presents results of a clinical validation study of Bone UltraSonic Scanner (BUSS), a novel dual-frequency axial transmission ultrasonometer, developed by Artann Laboratories. Assessment of bone conditions is based on evaluating relative changes of the axial profiles of ultrasonic characteristics in long bones and utilizes bulk and guided acoustic waves. The objective of this study was to determine the ability of BUSS to discriminate osteoporosis development stages.

[A study of specific electrical conductivity of water by the action of constant magnetic field, electromagnetic field, and low-frequency mechanical vibrations].

The effect of a constant magnetic field, an electromagnetic field, and low-frequency mechanical vibrations on specific electrical conductivity of distilled water was studied. Newly formed (fresh), three-day- and six-day-old distilled water was used. The exposure of distilled water to a constant magnetic field (2.

[Effect of mechanical stress on lon mutant strain of Escherichia coli K-12].

It was found that, depending on their frequency, mechanical vibrations (MVs) can either stimulate (4 Hz) or inhibit (50 Hz) the growth and the division of the lon mutant of Escherichia coli K-12. Similar effects were observed when the MV-treated nutrient medium was inoculated with untreated mutant cells. MVs enhanced the motility of mutant cells and the fragmentation of filament cells always present in the populations of lon mutants.