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Science News for September 26, 2003


Rating the performance of residential fuel cells

Researchers at NIST are studying how different factors affect fuel cell efficiency, including electrical and heating demands, temperatures, humidity, and power systems. The goal is to develop performance ratings that can help consumers understand the financial costs and benefits of fuel cells in various geographic and climate conditions.

SourceNational Institute of Standards and Technology (NIST)·DateSep 26, 2003

Making tiny plastic particles to deliver lifesaving medicine

Researchers at Johns Hopkins University have developed tiny plastic particles that can release medicine over a prescribed period, without triggering an immune response. The particles are designed to dissolve slowly in the body and cross the mucus lining of air passages, reaching their target cells underneath.

SourceJohns Hopkins University·JournalJournal of Biological Chemistry·DateSep 26, 2003

Dual microscopes illuminate electronic switching speeds

Researchers developed a new method combining atomic force and scanning capacitance microscopes to measure semiconductor switching speeds, enabling quick scanning of wafers for defects. This technique has the potential to determine if missing atoms in semiconductors slow down electrical charge movement.

SourceNational Institute of Standards and Technology (NIST)·JournalApplied Physics Letters·DateSep 26, 2003
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Faculty earns $330,000 for particle physics research

Florida Institute of Technology scientist receives three-year grant to study high-energy proton-proton collisions and fundamental questions of nature. The grant is part of the CMS experiment at CERN, a large international collaboration involving over 1,850 scientists from 34 countries.

SourceFlorida Institute of Technology·DateSep 26, 2003

Early Andean cultures part of intensive silver industry

Research reveals early Andean cultures were advanced technologically, polluting the atmosphere with heavy metals and facing climate change challenges. The study suggests that several thousand tons of silver were produced in pre-Incan times, but most likely recycled or exported.

SourceUniversity of Alberta·JournalScience·DateSep 26, 2003

Without thinning the worst is yet to come for fire-prone forests

Researchers developed software to weigh fire danger reduction against thinning costs, finding targeted density preserves ponderosa pine and western larch while minimizing waste. The approach can help reduce wildfire risks across tens of millions of acres with cost-effective solutions.

SourceUniversity of Washington·DateSep 26, 2003

Tiny 'test tubes' may aid pharmaceutical R&D

Scientists at NIST have developed an improved method for using liposomes as tiny test tubes for ultrasmall volume chemistry. This approach may be useful for studying cellular-level processes and identifying new pharmaceuticals more efficiently.

SourceNational Institute of Standards and Technology (NIST)·JournalLangmuir·DateSep 26, 2003
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.

Social insects point to non-genetic origins of societies

Research suggests that social structures in insects like bees and ants emerge from group interactions, with patterns of behavior creating complexity. This idea challenges the conventional view that social characteristics are programmed by genes, proposing instead that adaptation follows the development of networks.

SourceArizona State University·JournalScience·DateSep 26, 2003

New weapon may help flush stealth stashes of HIV in cells

Researchers found that Peptide T significantly reduced HIV levels in cellular reservoirs, with some participants experiencing undetectable virus and increased CD4 counts. The therapy showed promise as a complement or alternative to existing treatments for HIV/AIDS.

SourceGeorgetown University Medical Center·JournalPeptides·DateSep 26, 2003
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

'Good' chemical, neurons in brain elevated among exercise addicts

A study found that exercise increases BDNF and neurogenesis in mice, but high levels of these chemicals don't necessarily improve learning. In fact, high-running mice perform poorly in maze tests, suggesting a potential 'tipping point' where too much exercise becomes detrimental.

SourceOregon Health & Science University·JournalNeuroscience·DateSep 26, 2003