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Science News for September 10, 2000


Chronic lead contamination in San Francisco Bay shows long-term persistence of lead from past use of leaded gasoline

A study published in PNAS reveals that lead contamination in San Francisco Bay will continue to affect the environment for decades due to the persistence of contaminated soils and sediments. Researchers found that lead from past gasoline emissions still accounts for most of the lead in water samples, with limited mobility out of the bay.

SourceUniversity of California - Santa Cruz·JournalProceedings of the National Academy of Sciences·DateSep 10, 2000

Potent potential antibiotic found

Researchers at the University of Michigan have discovered a powerful new antibiotic candidate, PD 404182, which is 10,000 times more effective than other known inhibitors of a key enzyme in Gram-negative bacteria. The compound targets KDO 8-P synthase, essential for bacterial cell surface formation, and shows promise in weakening bacte...

SourceUniversity of Michigan·JournalJournal of the American Chemical Society·DateSep 10, 2000
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

UT Southwestern researchers discover protein that promotes cell death

Researchers at UT Southwestern Medical Center discovered a new protein, SMAC, which promotes apoptosis and is responsible for cell death. The study found that only seven amino acids are necessary to induce cell death, making it possible to design drugs based on these amino acids.

SourceUT Southwestern Medical Center·JournalNature·DateSep 10, 2000

Researchers work to combat dangerous aflatoxins

Scientists have identified genetic resistance to aflatoxin production in over five major crops, with commercially usable resistant varieties expected to be available soon. Crop management practices such as irrigation and early harvesting can also significantly reduce aflatoxin content.

SourceAmerican Phytopathological Society·DateSep 10, 2000

Nicotine addiction can start within a few days and after just a few cigarettes

A study published in Tobacco Control found that symptoms of nicotine dependence can appear within four weeks or even just a few days of starting to smoke. The research team monitored over 700 teenagers and found that nearly two-thirds developed at least one symptom of addiction, with feeling addicted being the most common initial symptom.

SourceCenter for Advancing Health·JournalTobacco Control·DateSep 10, 2000
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Leading breast cancer researchers will present latest findings

Renowned scientists and clinicians will discuss recent advances in breast cancer science and treatment, including new developments in imaging techniques, hormone replacement therapy, and alternative therapies. The symposium will feature prominent speakers from top medical institutions.

SourceNorthwestern University·DateSep 10, 2000

Researchers design test for visioning ability

A team of Penn State researchers has developed a scale to measure an individual's visioning ability, which is the capacity to summon a vivid mental image of their organization's future. The scale was validated through five survey groups and showed significant correlation with positive outlook and inspirational motivation.

SourcePenn State·JournalPsychological Reports·DateSep 10, 2000

Sensors monitor white-hot aircraft brakes

The DOE's sensor system uses a temperature sensor and radio-frequency tag to measure F-16 brake temperatures during landings. This allows ground crews to monitor the risk of hot brake emergencies, enabling pilots to take necessary precautions.

SourceDOE/Pacific Northwest National Laboratory·DateSep 10, 2000