The blackness index of an air sample, measurea by reflectance on an air sample filter, is an indication of the mean darkness of the particles collected on such a medium. As the presence of polycyclic hydrocarbons in air samples is associated with soot or carbon particles, it seemed reasonable to find out if a correlation between these two measurements could be established. The current availabil...

The Lagrangian particle dispersion model FLEX-PART was originally (about 8 years ago) designed for calculating the long-range and mesoscale dispersion of air pollutants from point sources, such as after an accident in a nuclear power plant. In the meantime FLEXPART has evolved into a comprehensive tool for atmospheric transport model-ing and analysis. Its application fields were extended from a...

In mobile communications systems complexity and efficiency are issues of paramount importance. Therefore when implementing integer factor sample-rate conversion, comb-filters especially cascaded-integratorcomb (CIC) filters are a good choice of realizing linearphase filters with low complexity. However, neither the direct implementation of comb-filters as transversal filters nor their implement...

AIMS To investigate the relationship between objectively-assessed alcohol consumption and perception of attractiveness in naturalistic drinking environments, and to determine the feasibility and acceptability of conducting a large-scale study in these environments. METHODS Observational study conducted simultaneously across three public houses in Bristol, UK. Participants were required to rat...

The ORG0020 dynamic respiration test is effective at distinguishing source segregated organic waste derived composts across a wide range of stabilities when compared to other standard tests; however, using the original diaphragm pump and manifold setup, the test is affected by variability in flow rate with time and across sample replicate vessels. Here, we demonstrate the use of a multichannel ...

a r t i c l e i n f o Keywords: Band 4 Foliage-height diversity Horizontal vegetation structure Image texture Infrared air photo Landsat NDVI Wildlife habitat Ecologists commonly collect data on vegetation structure, which is an important attribute for characterizing habitat. However, measuring vegetation structure across large areas is logistically difficult. Our goal was to evaluate the degre...

Despite its extensive use in physiological and clinical research, the analysis of HRV (heart rate variability) is still poorly supported by rigorous reliability studies. The main aim of the present study was to perform an in-depth assessment of absolute and relative reliability of standard indexes of HRV from short-term laboratory recordings. In 39 healthy subjects [mean age (min-max): 38 (26-5...