As we know that data mining is concern with learning from data therefore, completeness, quality and real world data preparation, is a key prerequisite of successful data mining with its aim to discover something new from the facts already recorded in the certain database. Preparation of data is a fundamental stage of data analysis. During data preparation, the major problem occurs due to missin...

The aim of this study was to determine the frequency of medication errors happened during the preparation and administration of intravenous (IV) drugs. This study was designed as prospective cross-sectional evaluations by direct unconcealed observation in a setting consisted of orthopedic, general surgery and gastroenterology wards of a teaching hospital. Participants were those patients hospit...

the possibility of using water insoluble fraction from biomass pyrolysis oil as additive in synthesis of wood-plastic novolac has been proved by using differential scanning calorimetry (dsc) and fourier transformed infra red (ft-ir) spectroscopy. synthesis of novolac with different concentrations (10, 20 and 30 wt %) of water insoluble fraction were performed. it was found that mechanical prope...

objectives : cleaning and shaping of the root canal system is an important step in endodontic therapy. new instruments incorporate new preparation techniques that can improve the efficacy of cleaning and shaping. the aim of this study was to compare the efficacy of mtwo and race rotary file systems in straightening the canal curvature using only one file or the conventional method. materials an...

objective: a clinically feasible convergence angle in full-coverage crown preparations, meeting the requirements for proper retention and resistance forms, has always been a matter of interest for laboratory and clinical researches. this study aims to evaluate the angle in teeth prepared by both under- and post-graduate students at tehran university of medical sciences, faculty of dentistry, de...