Quantitative evaluation of the stability relations of riebeckite, in the system Na-Fe-MgSi-C-GH at low temperature and pressure, is based upon estimated thermodynamic parameters for riebeckite and on chemical and petrologic data. This evaluation forms the basis for an assessment of the conditions of riebeckite formation in the Dales Gorge Member, Hamersley Group, Western Australia. Computed val...

1 Neuroscience Research Institute, University of California at Santa Barbara, Santa Barbara, California, United States of America, 2 Department of Molecular, Cellular and Developmental Biology, University of California at Santa Barbara, Santa Barbara, California, United States of America, 3 Kavli Institute of Theoretical Physics, University of California at Santa Barbara, Santa Barbara, Califor...

By taking a variety of realistic hardware imperfections into consideration, we propose an optimal power allocation (OPA) strategy to maximize the instantaneous secrecy rate of a cooperative wireless network comprised of a source, a destination and an untrusted amplify-and-forward (AF) relay. We assume that either the source or the destination is equipped with a large-scale multiple antennas (LS...

Emerging applications in brain–machine interface systems require high-resolution, chronic multisite cortical recordings, which cannot be obtained with existing technologies due to high power consumption, high invasiveness, or inability to transmit data wirelessly. In this paper, we describe a microsystem based on electrocorticography (ECoG) that overcomes these difficulties, enabling chronic re...

The antimicrobial activity and chemical composition of Libyan Origanum majorana L. essential oil were investigated. The findings showed an important antimicrobial activity against bacterial strains. In fact, the inhibition zone, MIC and MLC values recorded for the bacterial strains were in the range of 13±1.4 to 22±1.4 mm, 65.1 to 15.. and 65.1 to 6.5.0 mg/mL, respectively. GC/MS analysis showe...

As majority of people around the world rely on non-conventional medicine mainly of herbalsources for their primary healthcare nowadays, the quality of herbal medicine is one of themost important issues. The products may be contaminated with chemical toxins, excessivepesticides and heavy metals during the growth process with contaminated environment or duringharvesting, storing conditions and tr...

OBJECTIVE The internalizing and externalizing problems relating to childhood and adolescent have always been significant. Because there is special considerations in establishing communication with them and hence, the therapeutic methods for these problems must take into account these considerations. As establishing a therapeutic relationship is an important component of effective counseling, it...

in this study, the isothermal reduction of iron oxide pellets, made of iranian chadormalo, gole-gohar, and sangan iron ores, was investigated in the temperature range of 900-1100°c. tabas, pabdana, babnizoo, karmozd, and shahrood domestic coals were used as reductants. parametric studies were performed and the effects of such factors as temperature, average particle size of iron ore and coal fi...

Over the past two decades, there has been an enormous effort to understand, control, and use the relationship between the morphology of nanomaterials and their physical and chemical properties. Indeed, a great deal of effort has focused on controlling the size, shape, and composition of nanostructures. However, equally important is the surface chemistry of such structures, especially when one c...