Hypoglycemia and driving performance: a flashing yellow light?

Safety Implications of Conversions to Flashing Yellow Arrow Indications

Light-responsive organic flashing electron ratchet.

Ratchets are nonequilibrium devices that produce directional motion of particles from nondirectional forces without using a bias, and are responsible for many types of biological transport, which occur with high yield despite strongly damped and noisy environments. Ratchets operate by breaking time-reversal and spatial symmetries in the direction of transport through application of a time-depen...

Growth Rate of Chlorella in Flashing Light.

An apparatus is described for precise measurement of growth rate of an alga as a function of intensity and intermittency of illumination. Dilution of a culture is controlled by a photometric device to just such a rate as will maintain constant density of population and balance the growth rate. Maintenance of constant volume by an automatic siphon allows direct application of the differential fo...

Survey of gender effect on driving performance and mental workload of Young Drivers using a driving simulator

Background and aims: Road traffic accident annually lead to the death of 1.2 million people and also the disability of some 50 million people in the world. Iran is one of the countries with the highest rates of road accidents in the world. According to the annual statistics by the Iranian Legal Medicine Organization, 15,932 people have lost their lives in road traffic accidents in 1395 sh. Acco...

Increased Photoreversal of Ultraviolet Injury by Flashing Light

1. Photoreversal of ultraviolet (UV) injury was studied in the ciliate protozoan Tetrahymena pyriformis (geleii) strain W, cultured in the absence of other living organisms. The division pattern of progeny of single animals was followed in hanging drop preparations. 2. A sublethal dose of 450 ergs/mm.(2) of monochromatic UV of wave length 2654 A produces a lag before the first division followed...