Obesity represents a major threat to health and quality of life. Although obesity has strong genetic determinants, it is generally accepted that it results from an imbalance between food intake and daily physical activity. Health guidelines have been focused on 3 particular lifestyle factors: increased levels of physical activity and reductions in the intakes of fat and sugars. The dietary guid...

Rapid growth during infancy is associated with increased risk of overweight and obesity and differences in weight gain are at least partly explained by means of infant feeding. The aim was to assess the associations between infant feeding practice in early infancy and body mass index (BMI) at 6 years of age. Icelandic infants (n = 154) were prospectively followed from birth to 12 months and aga...

A microstrip patch antenna is designed that have metallic ring coplanar to radiation patch and defected ground structure to enhance the gain is proposed. The design forces conversion of the surface wave energy into the space wave energy by the scattering of surface waves from metallic ring. The metallic ring is placed around the metal patch at a distance of d1 from the edges of the metal patch ...

Gastric emptying was measured using a gamma camera in 22 patients with anorexia nervosa, in 10 patients of normal or high weight with bulimia nervosa and in 10 controls. Patients with anorexia nervosa were tested (1) while underweight and selecting their own diet (10 patients); (2) underweight, but receiving an adequate diet on an inpatient unit (refeeding diet) (12 patients); and (3) under ref...

In the past few years a readout for Ring-Imaging Cherenkov (RICH) detectors [1] based on CsI photocathodes has been under intensive development [2-15] . The detector is a parallel-plate avalanche chamber (PPAC) with a UV-sensitive solid-CsI photocathode separated by a narrow gap (1-2 mm) from a wire-mesh anode plane (or wire anode plane as in ref. [4]) . The Cherenkov light generated in a radia...

End pumped or longitudinally pumped solid-state lasers have proven to be very efficient sources. They differ from side pumped lasers, regardless of the nature of the pump, by the fact that the gain is concentrated in a very well defined region. Furthermore the gain exhibits a transverse profile directly related to the pump beam profile which induces new requirements on the relative sizes of the...

Optical gain of 8.3 km−1 is obtained in a neodymium-doped silica fiber under simulated sunlight (intensity = 2.1 kW m−2). The medium (length 50 m) coiled and attached to solid-state luminescent solar concentrator (LSC) disk (diameter 180 mm). disk/fiber unit placed cavity comprising highly reflective (HRM) dichroic (DM) mirrors increase the photon confinement by factor 2.2 compared with liquid ...

also invaluable for increasing the sensitivity of voltmeters and recorders, or isolating them from the signal source. For all of these appli cations, though, the amplifier must have a high degree of gain stability and very low in trinsic voltageor current-offset to permit the accurate observation of the desired signal. A new dc amplifier has been designed which achieves greater reliability and ...