Prepared standards of halothane in oxygen were analysed using a Pye Series 104 gas chromatograph equipped with a heated head flame ionization detector and gas sampling valve. The adoption of a positive jet voltage expanded the linear dynamic range of the detector to cover the 0.5-9.0% by volume range, provided that a small (0.5-ml) sample loop was used.

BACKGROUND Previous studies have shown cross-sectional 3-dimensional (3D) transesophageal echocardiographic (TEE) measurements to severely underestimate multidetector row computed tomographic (MDCT) measurements for the assessment of aortic annulus before transcatheter aortic valve replacement. This study compares annulus measurements from 3D-TEE using off-label use of commercially available so...

Abstract Magnetic tunnel junctions (MTJs), a prominent type of spintronic device based on the spin valve effect, have facilitated development numerous applications. The technical appeal for next‐generation MTJ devices has been proposed in two directions: improving performance by utilizing advanced two‐dimensional (2D) ferromagnetic materials or extending functionalities exploring gate‐tunable m...

In Egypt, surface irrigation is the most commonly used method comparing with the other irrigation systems in old land. In addition, centrifugal instruments are prevailing used for irrigating fields. However, the major problem who confronts the farmers at operating these instruments is priming it to be operating by filling the water to replace the air in pipes. To be prime the instrument need tw...

In this study we analyzed the relationship between malate valve capacities, N-assimilation, and energy metabolism. We used transgenic plants either lacking the chloroplast NADP-dependent malate dehydrogenase or mutants with a decreased transcript level of the plastid-localized NAD-dependent malate dehydrogenase. Plants were grown on nitrate or ammonium, respectively, as the sole N-source and tr...

Background: Heart valve disease gradually increases the pressure in the heart chambers and impairs heart pumping. It influences on quality of life due to low output, disability, fear, amnesia, anxiety, and depression. Although most of signs and symptoms in patients with heart valve diseases may significantly decrease after valve replacement surgery, there is limited information about the impact...

application of quantum-dot is a promising technology for implementing digital systems at nano-scale.  quantum-dot cellular automata (qca) is a system with low power consumption and a potentially high density and regularity. also, qca supports the new devices with nanotechnology architecture. this technique works based on electron interactions inside quantum-dots leading to emergence of quantum ...

In the well-known “prisoners' problem”, a representative example of steganography, two persons attempt to communicate covertly without alerting the warden. One approach to achieve this task is to embed the message in an innocent-looking cover-media. In our model, the message contents are scattered in the cover in a certain way that is based on a secret key known only to the sender and receiver....