In this paper the role of nanobiotechnology in the study of biological systems in water environment is presented. The functional nano-meter-scale structures in the cell such as genetic material, membranes, enzymes and molecular machines are decribed. The knowledge gained has applications in nanomedicine. Nanoparticles have practical applications in detection of water pollution and water purific...

background: many studies have been showed that certain illnesses including fungi and bacterial infections can be transmitted to human by contaminated swimming pools water. the main objective of the present study was to detect microbial (bacterial and fungi) and chemical (ph and chlorine levels) pollutions of the all swimming pools water in hamadan city, iran . methods: this study was a cross-se...

PURPOSE No occupational exposure limit exists for antineoplastic drugs. The main objective of this study was to describe environmental contamination with cyclophosphamide, ifosfamide and methotrexate in pharmacy and patient care areas of Canadian hospitals in 2012. The secondary objective was to compare the 2012 environmental monitoring results with the 2008-2010 results. METHODS Six standard...

Edge detection technology of oil spills image on the sea is one of most key technologies to monitor oil spills on the sea. In this paper, we present a novel region-based active contour model for oil spills remote sensing images. In the proposed model, we define a local Gaussian distribution fitting energy term, and this energy term is introduced into a global minimization active contour framewo...

Systematic collection of long term mesoto large-scale datasets of ambient air quality provides an indispensible means for air pollution monitoring. However, the quality of these monitoring data depends on the chosen method of measurements and the QA/QC procedures applied. We present a consolidated screening tool for the automatic detection of outliers in large data volume air quality monitoring...

In many fields of science there are multivariate observations which are generated by a (physical) linear mixing process of contributions from different sources. If it is assumed that the composition of the sources is constant for different observations, these observations are, up to measurement error, non-negative linear combinations of a fixed set of so-called source profiles which characteriz...

Room temperature operation, low detection limit and fast response time are highly desirable for a wide range of gas sensing applications. However, the available gas sensors suffer mainly from high temperature operation or external stimulation for response/recovery. Here, we report an ultrasensitive-flexible-silver-nanoparticle based nanocomposite resistive sensor for ammonia detection and estab...

Occurrence and incidence of drug resistant bacteria are becoming very high and common with overuse of antibiotics. This study focused on the isolation of drug resistant strains from the clinical and environmental sample that produce extended spectrum β-lactamase (ESBL) and identification of TEM-1 genes in the plasmid and genomic DNA. 45 Clinical samples from the hospital and 7 environmental sam...

1. introduction one of the most important conditions to have dusty weather beside of unstable weather is existence or non-existence of humidity. unstable weather having enough humidity will produce rain and thunder storm, else if the result will be dust storm. number of particles of dusty storm is depended to wind speed, sec of soil and its dimension. furthermore, vegetation type has importance...

Esters of phthalates, mainly applied as plasticizer, cause several human health and environment    hazards. Phthalates are widely used in pharmaceutical products, cosmetics, as well as other plastic commercial products, and can penetrate in foods, water dusts, and air leading to ingestion and inhalation exposure followed by skin absorption for human. These compounds cause serious adverse effect...