" Alarm over the rapid progress of embryo research was fuelled by another dramatic development last night. Scientists revealed that they have created 'virgin birth' embryos for the first time in Britain. " Both stories artfully blended competent accounts of actual and potential advances in reproductive technology with scary language and condemnation, magnified by repetition and typography, from...

We construct viscous fluid flow sourced by a force dipole embedded in cylindrical membrane, coupled to external embedding fluids. find analytic expressions for the flow, limit of infinitely long and thin tubular membranes. utilize this solution formulate in-plane dynamics pair pusher-type dipoles along cylinder surface. that mutually perpendicular generically move together helical geodesics. Si...

A study of a 10/10 vertical zigzag maneuver the generic submarine Joubert BB2 is presented. CFD simulations, involving moving planes and rotating propeller using dynamic overset technique, are performed at constant rotational speed in model scale on four systematically refined grids compared against experimental data for depth, pitch, pitch rate, drift, velocity, absolute thrust torque coeffici...

the ground state rotational bands of some rare earth nuclei show a rather strange behaviour at large values of angular momenta. the nuclear moment of inertia teta increases smoothly with angular momentum i up to i=12. then at about i=14 there is a sudden increase in the moment of inertia. the plot of teta versus the square of the angular velocity w gives a s-shaped curve. we attempt here to rep...

in this research, the compositing of the surface of az31b magnesium alloy with cnt was studied by fsp. the parameters under study were rotational speed (500-1500 rpm), transverse speed (12-44 mm/min), number of passes (1-4), and cnt weight fraction (0-2%). microhardness testing, optical metallography, fesem, and eds analysis were employed for the characterization of the samples. the suitable li...

introduction: many factors are related to the disability of subjects with chronic low back pain. fear-avoidance of injury and movement are the most important risk factors to increase the disability followed by decreased physical activity in these patients. the aim of current study was to compare the level of disability and fear-avoidance between two groups of low back pain patients with and wit...

magnetic abrasive finishing (maf) is a micromachining process that uses magnetic field and magnetic abrasive particles to conduct the mechanism of material removal in micro-nanometer scales. in this paper, by an experimental method and statistical analysis, the effects of parameters like working gap, work-piece rotational speed and material removal mechanism (injection of abrasive slurry of al2...