Peritrichs are a diverse, ecologically important ciliate group usually with a complex life cycle. To date, the community of the peritrichs has been investigated by using morphology-based methods such as living observation and silver staining. Here we show a molecular approach for characterizing the diversity and quantity of free-living peritrichs in environmental samples. We newly designed four...

BACKGROUND Birth cohort studies provide the opportunity to advance understanding of the impact of environmental factors on childhood health and development through prospective collection of environmental samples. METHODS We evaluated the feasibility and informative value of the environmental sample collection methodology in the initial pilot phase of the National Children's Study, a planned U...

During the last few years, the concern about the protection of the environment has largely increased due to the contaminants mainly with anthropogenic origin and have affected and continue to threaten human resources especially air quality, surface soil and groundwater. Solid wastes are produced every day in urban societies as a result of human activities and in an attempt to dispose of these m...

. Abstroct: Ceará shclf waters response to steady and transicnt wind forcing, from Ponta Cajuais (04°42'S, 37"19.5'W) to Ponta de ltapagé (02°50SS, 4QoOQ'W), was studied using a hydrodynamic numerical mode\. The finitc difference model was based upon the equations for a barotropic ocean in general form: advective and quadratic surface and bottom stress terms were included. Seasonal differences ...

BACKGROUND Exposures to water-damaged homes/buildings has been linked to deficits in respiratory health. However, accurately quantifying this linkage has been difficult because of the methods used to assess water damage and respiratory health. PURPOSE The goal of this analysis was to determine the correlation between the water-damage, as defined by the Environmental Relative Moldiness Index (...

Polyaniline/Fe3 O4 magnetic nanoparticles were synthesized and employed as a sorbent for the magnetic solid phase extraction (MSPE) of seven triazine herbicides from environmental water samples. The properties of the prepared magnetic sorbent were characterized using field emission-scanning electron microscopy (FE-SEM), fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetome...

The requirement to monitor the chemical quality of water has become one of the major issues in environmental analytics. Ionmobility spectrometry (IMS), a fast, sensitive method traditionally used in security and military applications, is also suitable for environmental analysis and detection of organic pollutants from aqueous matrices, when combined with advantageous methods to isolate analytes...