background: according to the high prevalence of cardiovascular diseases (cvd) in developing countries as well as high treatment expenses for patients and health-care systems, cvd prevention in such societies has a great importance. one of the most effective strategies is improvement of knowledge and attitude towards the cvd risk factors. this study aimed to evaluate the knowledge and attitude o...

Background: The superiority of TG/HDL-C and LDL-C/HDL-C ratios in predicting  CVD risk is a matter of debates. Thus, the objective of this study was to compare TG/HDL-C and LDL-C to HDL-C ratios in predicting the risk of CVD events. Methods: In a population-based cross-sectional study, 567 representative participants aged 40 years or older were entered in the study in Babol, North of Iran. The...

Herein we report a CVD approach to prepare high-density and perfectly aligned arrays of long SWNTs on stable temperature (ST)-cut quartz substrates using copper as catalyst and ethanol as carbon source. Compared with earlier reports, we have demonstrated that the aligned nanotube arrays can be grown on ST quartz substrate without the need of thermal annealing. The density can reach >50 nanotube...

Silicon carbide films were deposited by radio frequency thermal plasma chemical vapor deposition (CVD) at rates up to several hundred micrometers per hour over a 40-mm diameter substrate. The films were primarily h-phase SiC. Film morphology was characterized by columnar growth terminating in hemispherical surfaces. The average crystallite size as determined by X-ray diffraction line broadening...

Three new ruthenium amidinate complexes were prepared: tris(diisopropylacetamidinato)-ruthenium(III), Ru(iPrNC(Me)NiPr)3 4; bis(diisopropyl-acetamidinato)ruthenium(II) dicarbonyl, Ru( iPrNC(Me)NiPr)2(CO)2 5; and bis(ditert-butylacetamidinato)ruthenium(II) dicarbonyl, Ru(tBuNC(Me)NtBu)2(CO)2 6. They have been synthesized and characterized by H NMR, TG and X-ray structure analysis. These three co...

The design and operation of a simple, optically-accessible modular reactor for probing thermal thin film deposition processes, such as atomic layer deposition processes (ALD) and chemical vapor deposition (CVD), is described. This reactor has a nominal footprint of 225 cm(2) and a mass of approximately 6.6 kg, making it small enough to conveniently function as a modular component of an optical ...

Single crystalline tin oxide (SnO2) nanowires have been synthesized by carbothermal reduction of SnO2 nanopowder followed by thermal evaporation of the reduced precursor and growth via the vapor-liquid-solid (VLS) growth mechanism. The nanowires are deposited on single crystalline TiO2 substrates of orientations of (100) and (110) that are coated with a thin film and colloids of gold (Au) catal...

Chemical Vapor Deposition (CVD) is one of the most popular methods for producing Carbon Nanotubes (CNTs). The growth rate of CNTs based on CVD technique is investigated by using a numerical model based on finite volume method. Inlet gas mixture, including xylene as carbon source and mixture of argon and hydrogen as carrier gas enters into a horizontal CVD reactor at atmospheric pressure. In thi...

background: metabolic syndrome (ms) is the syndrome closely related to cardiovascular disease (cvd) risk factors. few prospective studies have compared the impact of dynamic changes of ms on the development of cardiovascular diseases (cvd). methods: overall, 3461 subjects were recruited from a cohort study on prevention of multiple metabolic disorders and ms in jiangsu of china (pmmjs) with a f...

Chemical vapor deposition (CVD) is an established, versatile technique for the preparation of high-quality metal and semiconductor thin films on solid surfaces.1,2 Despite its utility, constraints inherent to the process, including the requirement of high precursor vapor pressure and thermally coupled transport and deposition steps, generally preclude its use at low temperature and for non-line...