A 55-year-old female patient with earlier diagnosis of cardiac cirrhosis and mitral valve implantation was admitted with complaints of weakness and dizziness. She had undergone VVIR pacemaker implantation 9 years earlier due to low ventricular rate atrial fibrillation and had generator replacement procedure 3 months previously. Electrocardiogram indicated pacemaker dysfunction due to failure to...

Chitinase A of Vibrio carchariae was expressed in Escherichia coli M15 host cells as a 575-amino-acid fragment with full enzymatic activity using the pQE60 expression vector. The yield of the highly purified recombinant protein was approximately 70 mg per litre of bacterial culture. The molecular mass of the expressed protein was determined by HPLC/ESI-MS to be 63 770, including the hexahistidi...

A high-intensity grazing-incidence X-ray diffractometer system, which uses a parabolic graded multilayer mirror and an 18-kW rotating-anode generator, has recently been developed for the structural characterization of surfaces and thin film~. Its goniometer has two in-plane tp/20 x axes and two conventional m¢20 axes for measurements of in-plane and out-of-plane diffraction, respectively. The d...

A method has been developed which automatically generates SMARTS patterns for four-atomic torsional fragments, searches experimental structures in the Cambridge Crystallographic Database, and obtains rules for preferred torsion angles in drug-size molecules. These rules can be used for exhaustive conformational analysis using the popular conformer generator OMEGA. This approach results in an ov...

We describe a photolithographic method for the direct modification and micropatterning of the surface chemical structure of self-assembled monolayers. End-functional azobenzene alkanethiols are designed and synthesized so that, when self-assembled onto gold substrates, an acid-sensitive tert-butyl ester end group is positioned at the air-monolayer interface. Upon exposure to UV radiation in the...

in this paper the effect of block shape vortex generators (vgs) on an air-water fin-tube heat exchanger has been studied experimentally using exergy analysis method. also the effect of these vgs on increasing heat transfer rate has been simulated numerically and the results show a good agreement with the experiments. in this research we used a wind tunnel to produce wind flow over heat exchange...

We consider the problem of the thermal X-ray radiation from the hot polar cap of radio pulsars showing evidence of E×B subpulse drift in radio band. In our resent Paper I, within the partially screened gap (PSG) model of inner acceleration region we derived a simple relationship between the drift rate of subpulses observed in a radio-band and the thermal X-ray luminosity from polar caps heated ...

In this paper, we propose an approach to design and implementation of VLSI circuits free of electrical supply and power rails. With this approach, the circuits can be made to use the power carried by the incident light for supply, control, and optical charge pumping. The circuits can be fabricated in a standard CMOS technology without additional process. A test circuit involving basic gates and...

We consider the problem of the thermal X-ray radiation from the hot polar caps of radio pulsars that show evidence of E × B subpulse drift in radio band. In our recent Paper I, using the partially screened gap (PSG) model of inner acceleration region we derived a simple relationship between the drift rate of subpulses observed in a radio-band and the thermal X-ray luminosity from polar caps hea...