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Science News for May 13, 2002


Key powerhouse enzyme linked to cancer development

Researchers discovered PRDX3, a key powerhouse enzyme, plays a crucial role in controlling tumor growth. By manipulating PRDX3 activation, tumors can be halted or accelerated. Understanding this pathway could lead to new cancer treatments.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateMay 13, 2002

Older adults can exercise just once a week to maintain muscle strength

A study by researchers at Ball State found that older adults who performed low-volume, high-intensity resistance training once a week maintained their muscle strength over time. In contrast, those who stopped exercising after three months experienced significant declines in thigh muscle strength and size.

SourceThe Gerontological Society of America·JournalJournal of Gerontology·DateMay 13, 2002

Scientists discover protein identifies damage to DNA

Researchers at the University of North Carolina at Chapel Hill have identified a protein called ATR that senses damaged DNA and triggers the body's natural repair system. This discovery is significant as it highlights a crucial step in maintaining genome stability and preventing mutations that can lead to cancer.

SourceUniversity of North Carolina at Chapel Hill·JournalProceedings of the National Academy of Sciences·DateMay 13, 2002
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.

Ocean ecosystems only altered following two great mass extinctions

The study found that only the Permian and Cretaceous extinction events led to significant changes in ocean ecosystem structure. The analysis suggests that life's evolution played a crucial role in shaping these ecosystems after the massive extinctions.

SourceVirginia Tech·JournalProceedings of the National Academy of Sciences·DateMay 13, 2002

Jury’s still out on use of marijuana derivative for MS

A large randomized clinical trial found that synthetic THC and plant-extract marijuana derivatives were safe but showed no improvement in spasticity symptoms for multiple sclerosis patients. Side effects, particularly with the plant-extract, were common and may limit potential dosages.

SourceAmerican Academy of Neurology·JournalNeurology·DateMay 13, 2002

Opening up research ethics boards

Research ethics boards involved in industry-sponsored pharmaceutical trials are under investigation due to concerns of secrecy and lack of transparency. Industry sponsorship can create conflicts of interest, compromising the integrity of clinical trials and patient safety.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMay 13, 2002

Twelve new coral and fish species discovered off Madagascar

A recent marine expedition off Madagascar has doubled the number of described corals in the area, highlighting the importance of protecting this region's biodiversity. The team also found nine new coral species and three new fish species, shedding light on the need for sustainable conservation efforts.

SourceConservation International·DateMay 13, 2002
Apple iPhone 17 Pro

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

Asian immigrants likely to see blood pressure rise

A study of nearly 2,000 Asian immigrants found that hypertension rates rise with duration of residence in North America. Immigrants who lived for four or fewer years had a prevalence below 3%, while those living ten or more years had over 13%.

SourceCenter for Advancing Health·JournalJournal of Epidemiology and Community Health·DateMay 13, 2002
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

No greater risk if physician delivers fewer babies

A Canadian study divided physicians into low-, medium- and high-volume groups and found no significant differences in maternal complications or newborn outcomes. Family physicians in lower volumes were more likely to consult obstetricians and perform inductions.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMay 13, 2002

Mathematical model provides new tool to assess mail-borne spread of anthrax

The model simulates the mail-borne anthrax outbreak in the US, demonstrating that six original letters contaminated up to 5,000 other pieces of mail, primarily affecting elderly recipients. The analysis highlights the greatest risk to society came from postal workers and recipients of cross-contaminated letters.

SourceVanderbilt University·JournalProceedings of the National Academy of Sciences·DateMay 13, 2002

The role of phytochromes in bacteria revealed

Researchers have discovered that phytochromes regulate the synthesis of bacterial photosynthetic apparatus, essential for symbiotic relationships with leguminous plants. The discovery provides new insights into the operational mechanisms of light sensors in plants and has potential applications in molecular biology.

SourceInstitut de recherche pour le développement·JournalNature·DateMay 13, 2002
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Another cascade range volcano may be coming to life

Scientists have detected a bulge in the Earth's crust near South Sister volcano, caused by slow accumulation of molten rock. This has led to an increase in gas emissions and swelling of the ground, raising concerns about potential eruptions.

SourceGeological Society of America·DateMay 13, 2002

Metal-eating algae, spartina eradication, horseshoe crabs

Researchers are enhancing genetically altered algae to maximize its ability to pick up trace metals in Lake Erie, a potential game-changer for Great Lakes bio-remediation. Meanwhile, efforts to eradicate invasive Spartina anglica in Puget Sound aim to support native birds and the seafood industry.

SourceNational Sea Grant College Program·DateMay 13, 2002