background: given the relationship of vitamin d deficiency with insulin resistance syndrome as the component of polycystic ovary syndrome (pcos), the main aim of this study was to compare serum level of 25- hydroxyvitamin d [25(oh)d] between pcos patients and normal individuals. materials and methods: a cross sectional study was conducted to compare 25(oh)d level between117 normal and 125 untre...

in order to determine the normal values of total ige in children, 3270 sera were taken from 0-14 year old males and females in different parts of tehran, the capital of iran. the technique which was used to measure total ige was elisa method using monoclonal anti-ige antibody. the results of this research indicated that the lower value for ige was detected in children at birth (x=3.s3 iu/ml), w...

I ~ ~ " n / ~ ~ I ( -===~ Figure 2: Simplified portion of semantic network for the realisation example Abstract transformations are low-level transformations which act on the :semantic network immediately beforetransformations are low-level transformations which act on the :semantic network immediately before realisation. Associated with each abstract transformation are theoretical issUes on wh...

State of the art Stochastic Local Search (SLS) solvers have difficulty in solving many CNF-encoded realistic SAT problems, apparently because they are unable to exploit hidden structure as well as systematic solvers. Recent work has shown that SLS solvers may benefit from a preprocessing phase borrowed from systematic SAT solving. In this paper, we report an extensive empirical examination of t...

BACKGROUND A low FEV1/FVC from post-bronchodilator spirometry is required to diagnose COPD. Both the FEV1 and the FVC can vary over time; therefore, individuals can be given a diagnosis of mild COPD at one visit, but have normal spirometry during the next appointment, even without an intervention. METHODS We analyzed two population-based surveys of adults with spirometry carried out for the s...

We propose a novel method for performing point.feature correspondence based on a modal shape description. Introducing shape information into a low-level matching proc’ess allows our algorithm to cope easily with rotutions and translutions in the image plane, yet still give a dense correspondence. We also show positive results for scale changes and small skews, and demonstrate how reflectional s...

Luminescence spectra of organometallic molecules in crystals or glasses are discussed and interpreted by using the time-dependent Ž . theory of electronic spectroscopy. Emphasis is placed on determining bond length and bond angle changes excited-state distortions between the ground and excited electronic states. The physical meaning of the dynamic processes and the molecular properties are desc...

So far, solar-like oscillations have been studied using radial velocity and/or light curve variations, which reveal frequencies of the oscillation modes. Line-profile variations, however, are also a valuable diagnostic to characterise radial and non-radial oscillations, including frequencies, amplitudes, the spherical mode wavenumbers (l,m) and the stellar inclination angle. Here we present a l...

We investigate the effects of local vibrational excitations in the nonsymmetrized current noise S(ω) of a nanojunction. For this purpose, we analyze a simple model the Holstein model in which the junction is described by a single electronic level that is coupled to two metallic leads and to a single vibrational mode. Using the Keldysh Green’s function technique, we calculate the nonsymmetrized ...

We study the electronic lifetimes in molecular junctions using the Keldysh nonequilibrium Green function (NEGF) model. It is found that two characteristic time scales which govern the electron tunneling phenomena. One is the electronic lifetime in which electronic energy in the molecular electronic state dissipates into the right/left electrode or vibrational mode, the other is the residence ti...