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.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
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.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
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.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Rural America's information age: the economic future of rural communities depends on their ability to take advantage of emerging telecommunications technologies
- Abstracts: The case for electric vehicles. Flywheels in hybrid vehicles: a rapidly spinning flywheel combines with a gas-turbine engine to power a novel hybrid electric vehicle
- Abstracts: Power to the people: government has a responsibility to see that all its citizens have access to the latest telecommunications technology
- Abstracts: Ambiguity in the practice of science. Could the Internet Balkanize science? K-12 education and support for science
- Abstracts: Count the money. More than aesthetics