This study characterized the acoustic properties of an International Electromechanical Commission (IEC) agar-based tissue mimicking material (TMM) at ultrasound frequencies in the range 10-47 MHz. A broadband reflection substitution technique was employed using two independent systems at 21°C ± 1°C. Using a commercially available preclinical ultrasound scanner and a scanning acoustic macroscope...

We address the problem of robust formant tracking in continuous speech. We propose the robust statistical model of t-distribution mixture density (tMM) operating on the “pyknogram” obtained through a multiband AM-FM demodulation technique. The statistical model of the pyknogram is shown to be more-effective to handle the variability in the signal processing stage. The t-mixture density estimati...

OBJECTIVES The aim of the present study was to evaluate the usefulness of the Thoracic Morbidity and Mortality (TMM) scoring system in auditing the quality of care of our unit. METHODS We analysed the performance of our unit comparing the incidence of complications and mortality occurring after anatomic lung resections during two different periods: early period (January 2000 to December 2009:...

The activation of a telomere maintenance mechanism (TMM) is indispensable for cellular immortalization, a hallmark of human cancer. Although most human cancers use telomerase as their TMM, some use an alternative lengthening of telomeres (ALT) mechanism. The latter especially include specific subtypes of soft tissue sarcomas where ALT occurs most often in tumors with complex karyotypes, astrocy...

The patterning of stomata plays a vital role in plant development and has emerged as a paradigm for the role of peptide signals in the spatial control of cellular differentiation. Research in Arabidopsis has identified a series of epidermal patterning factors (EPFs), which interact with an array of membrane-localised receptors and associated proteins (encoded by ERECTA and TMM genes) to control...

Abstract Non-destructive techniques of in-situ stress measurement from oriented cored rocks have great potential to be developed as a cost cost-effective and reliable alternative the conventional overcoring hydraulic fracturing methods. The tangent modulus method (TMM) is one such technique that can applied measure stresses. Like deformation rate analysis (DRA), rock specimen subjected two cycl...