We consider the radial buoyancy of vertical magnetic field lines in radiation and gas pressure dominated accretion disks. We find that in addition to radial drift driven by turbulent diffusion and biased by the global field geometry, there are buoyancy effects which tend to move magnetic flux outward. In gas pressure dominated disks the poloidal magnetic field will move outward at a rate compar...

Background and aim: In spite of the existance of different types of treatment for cutaneous leishmaniasis, an efficient, safe and cheap treatment has not been found yet. There are some studies showing antiparasiticidal effect of direct current electricity both in vivo and in vitro. The objective of this study was to evaluate the effect of electrotherapy in treatment of cutaneous leishmani...

Web-based services often run experiments to improve their products. To carry out an effective experiment and evaluate the results appropriately, there must be a control group and at least one treatment group. Ideally all of these groups are disjoint, so that each user is given a specific treatment. Using geographical locations as units of experimentation is desirable because this does not requi...

We investigate energy transport in several two-level atom or spin-1/2 models by a direct coupling to heat baths of different temperatures. The analysis is carried out on the basis of a recently derived quantummaster equation which describes the nonequilibrium properties of internally weakly coupled systems appropriately. For the computation of the stationary state of the dynamical equations, we...

Objective. To compare novice clinicians' performance using GlideScope videolaryngoscopy (GVL) to direct laryngoscopy (DL). Methods. This was a prospective, randomized crossover study. Incoming pediatric interns intubated pediatric simulators in four normal and difficult airway scenarios with GVL and DL. Primary outcomes included time to intubation and rate of successful intubation. Interns rate...

Using angle-resolved photoemission spectroscopy we have performed a detailed study of bilayer splitting in Bi2Sr2CaCu2O8þd as a function of doping level and temperature. In heavily overdoped samples where the splitting is the clearest, we extract an intracell coupling t’ , 55 meV. As a function of photon energy the intensity ratio of the bonding and antibonding bands varies, allowing us to dete...

Hall thrusters and other types of electric propulsion have become a tempting alternative to traditional chemical propulsion systems due to the high specific impulses they provide at relatively high efficiencies. Unlike conventional chemical propulsion systems, electric propulsion devices do not rely on the internal energy stored within their propellant. Instead, an external power source is used...

1 Visiting Astronomer at the Infrared Telescope Facility which is operated by the University of Hawaii under contract to the National Aeronautics and Space Administration 2 ABSTRACT We present the discovery of CO fundamental ro-vibrational emission from the classical T Tauri spectroscopic binary DQ Tau. The high-resolution infrared echelle spectra reveal emission lines from both the v=1 and v=2...

Photoemission spectroscopy has developed to one of the most powerful tools to study electronic and surface structures.1 This review article discusses basic features of photoemission theory based on many-body scattering theory. More sophisticated theory can be developed on the basis of nonequilibrium Green’s functions2–4 and quantum electrodynamics.5 These approaches are very powerful; however, ...

After a review of the literature, we conclude that there is potential for significant “spillover effects” from FDI into host countries. However, we identify some limitations of this potential to do with the stock of human capital, the interest in local firms of promoting skills transfer and the competition environment. We suggest comparing conditions and effects between regions, particularly be...