Retrieval and monitoring of aerosol optical thickness over an urban area by spaceborne and ground-based remote sensing.

We used an instrumental synergy of both ground-based (sunphotometer) and spaceborne [POLDER (polarization and directionality of the Earth's reflectances) and Meteosat] passive remote-sensing devices to determine the aerosol optical thickness over the suburban area of Thessaloniki, Greece, from April 1996 to June 1997. The POLDER spaceborne instrument measures the degree of polarization of the solar radiance reflected by the Earth-atmosphere system. Aerosol optical thickness (AOT) retrieval needs an accurate estimate of the contribution of the ground surface to the top of atmosphere's polarized radiance.

New approach for aerosol profiling with a lidar onboard an ultralight aircraft: application to the African Monsoon Multidisciplinary Analysis.

A new airborne instrumental payload has been designed for an ultralight aircraft to determine the vertical profile of aerosol optical properties. It is based on Lidar Aérosols UltraViolet Aéroporté (LAUVA), a compact backscattering lidar system emitting at the wavelength of 355 nm. We operated this airborne configuration in the Sahel from the city of Niamey (Niger) during the first campaign of the African Monsoon Multidisciplinary Analysis (AMMA) in January-February 2006, when aerosols from both soil dust and savannah fires cause large visibility reductions.

Follow-up of participants in the Trois-Rivières Growth and Development Study: Examining their health-related fitness and risk factors as adults.

The purpose of the study was to examine the effect of daily physical education in primary school on some indices of fitness (PWC170/kg, handgrip strength, sit and reach flexibility, abdominal muscle endurance, and balance), cardiovascular health (lipid profile, waist-to-hip ratio), and anthropometry in the adult years. Four subsamples of participants in the Trois-Rivières Growth and Development Study were examined: experimental men (n = 32), experimental women (n = 36), control men (n = 30), and control women (n = 35), some 20 years after completion of primary school. During 6 years of primary school education, the experimental group received 5 h of physical education each week, whereas the control group received only the typical Provincial program of a single 40-min period per week.

Lack of antilipolytic effect of lactate in subcutaneous abdominal adipose tissue during exercise.

The purpose of our study was to evaluate the potential inhibition of adipose tissue mobilization by lactate. Eight male subjects (age, 26. 25 +/- 1.