By improving the seal around the wound dressing to reduce air leaks, Zurovcik cut the pump's power requirements from about 14 watts to 80 microwatts, which comes from a hand pump.
If this could be implemented in sub-Saharan Africa, he told the Guardian, "the proportion of people with HIV would run to under 1% in less than 50 years".
If the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease would likely decline.
Most people can tolerate these pressures pretty easily, but passengers with heart disease may experience chest pains as a result of the reduced amount of oxygen flowing through their blood.
There are those who consider it questionable that these defense-linked research projects will either improve our standard of living or do much to protect our diminishing resources.
And supply is tightening. Monsoons and bad weather last year damaged sugar crops in India and Mexico; and the largest sugar exporter, Brazil, now USES half the sugar it produces to make ethanol.
The consequences of an excessive number of livestock grazing in an area are the reduction of the vegetation cover and the trampling and pulverization of the soil.
Fewer otters would have allowed sea urchin populations on which the otters preyed to expand and the urchins' grazing pressure on kelp forests to increase.
Calcium treatment in combination with other methods such as controlled atmosphere (ca), heating, and biological control has shown a marked efficacy in reducing postharvest losses.