Palladium nanoparticles were evaluated as a potential chemical modifier for lead determination by high-resolution continuum source graphite furnace atomic absorption spectrometry. Hydrophilic palladium nanocubes and nanospheres synthesised with sizes varying from 3 to 22 nm. Positive effects in terms of sensitivity thermal stability upon the use observed, especially using nm spherical-shaped. T...

E-waste or electronic waste is a major waste stream resulting from the boom in consumer electronics in the past decades. With the rapid pace of technology innovation and obsolescence that leads to shortened product lifespans, the growing demand for electronics and its resulting waste poses a significant challenge in every stage of its life-cycle from the utilization of raw materials, production...

BACKGROUND Waste produced in dental clinics has been the topic of investigations for many years. These waste materials have important health impacts and are hazardous to humans and the environment. OBJECTIVE To investigating solid waste production and its management in dental clinics in Gorgan, northern Iran. METHODS In this cross-sectional study, 45 of 143 public dental practices and 5 of ...

Today, there is a growing controversy on the association of intake of omega-3 polyunsaturated fatty acids (PUFAs) and the onset of cardiovascular diseases (CVDs) in humans. Some studies suggest that the consumption of oily fish leads to increased levels of omega-3 PUFAs and thereafter a favourable cardiovascular prognosis. These views have been supported by epidemiological data evaluated by met...

Rose water is one of the most important products obtained from Rosa genus (Rosaceae). Although Iran is one of the main producers of rose water, limited research has been done on it. A simple distillation and a Clevenger-type apparatus were used to obtain rose water and rose oil. All the volatile concentrates were investigated for their chemical composition by gas chromatography (GC) and gas chr...

background: dental waste can be hazardous to humans and the environment. objective: to determine the current status of dental waste management in private and public dental clinics and private dental offices in shiraz, southern iran. methods: this cross-sectional study was conducted at the shiraz university of medical sciences from february through june 2013. a stratified random sampling method ...

The discharge of untreated oily wastewater into the environment has serious impacts on human health, living nature, and ecosystems leads to significant economic losses. Many engineering techniques have been proposed applied treat wastewater, but limited studies investigated low-cost effective using by-products waste/scrap materials from construction industry. Materials are needed not only mitig...