The bacteria behind ulcers

Article Abstract:

Helicobacter pylori infection may lead to chronic stomach inflammation, ulcers and cancer. Antibiotics are usually necessary to treat the infection. Over 50% of all 60-year-olds and 60% to 70% of children in developing countries who are 10 years of age or younger are infected.

Health aspects, Causes of, Ulcers, Helicobacter infections, Stomach cancer, Gastritis

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Why and how bacteria communicate

Article Abstract:

Bacterial colonies employ chemical communication to synchronize colony activity. Each bacterium synthesizes a protein, which upon reaching a certain threshold level, acts as an action switch for the colony. Actions may be concerted or act as a signal for differentiation.

Research, Usage, Bacteria, Proteins, Cellular signal transduction

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Straight up into the blue: Tiltrotors, which take off like a helicopter but fly like an airplane, will soon make their military debut. Can civilian applications be far behind?

Article Abstract:

The rollout of the military tiltrotor aircraft is expected to be the first step in the commercialization of the technology. Tiltrotor aircraft technology for commercial applications would be used for intercity or suburban air transport.

History, Design and construction, Civil aviation, Airplanes, Vertical takeoff and landing aircraft, Vertically rising aircraft

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