thin film phthalocyanines(pc), incloding zinc, iron, and magnesium phthalocyani-nes, were prepared by vacuum deposition method. chronocoulometry was used to study the charge transfer reaction mechanism of ionic species through the thin films. the results obtained in chronocoulometric studies shows that the thin film phthalocyanines could operate via two mechanisms.the first mechanism metal pc t...

Lead zirconate titanate (PZT) nanopowders with spherical-shaped morphology, perovskite structure and an average size of 20 nm were successfully synthesized. The prepared PZT nanopowders were characterized by differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy dispersive X-ray (EDS) and Transmission electron microscopy (TEM) technique. Single-...

the number of spatial relations that we can represent as a function of the representative points per object), the notion of image equivalence with respect to a modelling space, as well as information equivalence of relation based representations. 13 coordinates of the cells that store the representative points for the corresponding intersections): Thus the representation formalism is equivalent...

introduction: candida albicans (ca) is by far the most common yeast of oral infections, including endodontic infections. the aim of this study was to evaluate and compare the antifungal effect of white-colored mineral trioxide aggregate (wmta) and portland cement (pc) using a tube-dilution test. materials and methods: wmta and pc were tested freshly mixed and after 24 h. the experiment was perf...

the objective of this study was to investigate the effect of principal components (pc) of the regression coefficients (co)variance matrix on the lactation curve, and on the formation of selection index to modify the curve, based on these pc’s, and as well to estimate additive genetic and phenotypic variances and heritability of the constructed selection index. lactation period of 301 d (5-305) ...

Background/Aims Several studies have demonstrated that sleep problems are associated with functional gastrointestinal disorders (FGIDs): irritable bowel syndrome (IBS), functional dyspepsia, etc, but the relationship between excessive daytime sleepiness (EDS) and FGIDs has not been systematically studied in the general population. This study aims to explore the relationship between EDS and spec...

background: prostate specific antigen (psa) has been used as a screening test for the early detection of prostate cancer (pc) for many years. although the introduction of psa test led to a considerable increase in reported prostate cancer cases, there is still some controversy over the sensitivity and specificity of this marker in distinguishing pc patients from those with benign prostate hyper...

STUDY OBJECTIVE We perform a needs assessment of pediatric readiness, using a novel scoring system in California emergency departments (EDs), and determine the effect of pediatric verification processes on pediatric readiness. METHODS ED nurse managers from all 335 acute care hospital EDs in California were sent a 60-question Web-based assessment. A weighted pediatric readiness score (WPRS), ...

IMPORTANCE Previous assessments of readiness of emergency departments (EDs) have not been comprehensive and have shown relatively poor pediatric readiness, with a reported weighted pediatric readiness score (WPRS) of 55. OBJECTIVES To assess US EDs for pediatric readiness based on compliance with the 2009 guidelines for care of children in EDs; to evaluate the effect of physician/nurse pediat...