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Science News for July 6, 2000


New evidence of link between common infection and stroke

A study published in the journal Stroke found that Chlamydia pneumoniae infection is associated with a higher risk of first ischemic stroke, particularly due to inflammation caused by the infection. The researchers also discovered that shorter-lived IgA antibodies were strongly linked to the risk of having a first stroke.

SourceColumbia University Irving Medical Center·DateJul 6, 2000

Mathematics educator, researcher receives NSF CAREER award

Gwen Lloyd has received a $438,354 NSF CAREER award to develop an integrated program of research and education on teacher learning with innovative K-12 materials. The project aims to promote meaningful changes in prospective teachers' conceptions and classroom practices through the use of reform-oriented curriculum materials.

SourceVirginia Tech·DateJul 6, 2000
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

NRC scientists grow organic wires for nanoscale devices

Scientists at NRC's Steacie Institute of Molecular Sciences have developed a method to grow organic wires on silicon crystals using a scanning tunneling microscope, overcoming obstacles in microchip technology. The technique enables the rapid growth of molecular lines, paving the way for hybrid devices with unique capabilities.

SourceNational Research Council of Canada·JournalNature·DateJul 6, 2000

Antimalarial drug may point way to new class of antibiotics

Researchers have discovered chemical cousins of an antimalarial drug that show promise in treating serious antibiotic-resistant infections. The compounds, originally developed to treat malaria and other parasitic infections, have been found to be as active as many currently used drugs against a range of bacteria, including staphylococc...

SourceOhio State University·JournalAntimicrobial Agents and Chemotherapy·DateJul 6, 2000

UI researcher validates underpinnings of scientific theory

A University of Iowa researcher and his colleague confirm the validity of scientific theories on ancient marine life by testing library-based databases. They found that up to 70% of entries are inaccurate but randomly distributed, not introducing bias into patterns.

SourceUniversity of Iowa·JournalScience·DateJul 6, 2000

Mutation causes dangerously high blood pressure during pregnancy

Researchers discovered a mutation in the mineralocorticoid receptor gene, leading to dangerously high blood pressure in pregnant women. The mutation renders the receptor more sensitive to progesterone, causing excessive salt retention and skyrocketing blood pressure.

SourceHoward Hughes Medical Institute·JournalScience·DateJul 6, 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.

Experiments reveal new details of the architecture of ion channels

Researchers have solved the crystal structure of the cytoplasmic-facing portion of voltage-dependent potassium channels, controlling potassium flow out of cells. The findings shed light on the attachment mechanism of a key protein subunit to the channel's complex structure.

SourceHoward Hughes Medical Institute·JournalScience·DateJul 6, 2000

Fly studies link three genes to malignant epithelial growth

Researchers discovered that three fruit fly genes Scribble, Lethal giant larvae, and Discs-large are crucial for orderly epithelial cell growth. Mutations in these genes cause cells to become overgrown and form solid, tumor-like masses, similar to human malignant tumors.

SourceHoward Hughes Medical Institute·JournalScience·DateJul 6, 2000

AAAS seeks entries for online category in Science Journalism Awards

The American Association for the Advancement of Science (AAAS) is seeking entries for its Science Journalism Awards competition, including a new online news category. The awards recognize excellence in science writing for a general audience and will support journalists covering emerging media platforms.

SourceAmerican Association for the Advancement of Science (AAAS)·DateJul 6, 2000
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.