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Science News for February 24, 2004


Antibiotic provides promise in treatment of spinal cord injuries

Researchers at Boston Children's Hospital found that minocycline reduces later-stage tissue loss by blocking mitochondrial cytochrome c release, potentially improving quality of life for those with spinal cord injuries. The study suggests a novel post-trauma strategy using a safe, FDA-approved drug.

SourceBoston Children's Hospital·JournalProceedings of the National Academy of Sciences·DateFeb 24, 2004

Ethical review of research in developing countries needed

A study highlights the need for further thinking on research conducted in developing countries, where a majority of studies were not reviewed by local institutional boards. The survey found that 44% of respondents believed their studies were not reviewed, with concerns about cultural appropriateness and language consent forms.

SourceJohns Hopkins Bloomberg School of Public Health·JournalJournal of Medical Ethics·DateFeb 24, 2004
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.

Sophisticated silencing strategies

A study by James Carrington and Steve Jacobsen reveals distinct classes of small RNAs in plants with specialized functions. These include genome maintenance, regulation of specific genes, and defense mechanisms, shedding light on the evolution of RNA-mediated gene silencing.

SourcePLOS·JournalPLOS Biology·DateFeb 24, 2004

St. Jude/Mayo Clinic study finds direct link between CBP gene and lymphoma

A new study by St. Jude/Mayo Clinic researchers found a direct link between the CBP gene and lymphoma development in mice, with the loss of CBP promoting T-cell lymphoma and cooperating with reduced p27Kip1 protein levels. The study suggests that CBP plays a role in cancer development despite normal p53 activity.

SourceSt. Jude Children's Research Hospital·JournalCancer Cell·DateFeb 24, 2004

Scientists raise caution about effects of HRT on hearing

Researchers found that hormone replacement therapy (HRT) can lead to poorer hearing performance in women, especially in noisy environments. The study involved 32 women who had received HRT and compared their hearing with 32 women who had not.

SourceUniversity of Rochester Medical Center·DateFeb 24, 2004
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Atmospheric water clusters provide evidence of global warming

Researchers at Hamilton College have found that atmospheric water clusters could play a key role in accelerating the Greenhouse effect. The team's calculations suggest that larger water clusters should be detectable in the lower troposphere.

SourceHamilton College·JournalJournal of the American Chemical Society·DateFeb 24, 2004

Asia's bear-sized catfish are disappearing

The giant catfish, a migratory species in Southeast Asia, is facing extinction due to the destruction of its habitats. Conservation efforts are underway to protect this vital species and the ecosystem it supports.

SourceUniversity of California - Davis·DateFeb 24, 2004

International critical care doctors release first-ever guidelines for sepsis

Critical care doctors have released the first-ever guidelines for sepsis, recommending more aggressive recognition and diagnosis, timely antibiotic therapy, and maintenance of adequate blood pressure. The guidelines aim to standardize clinical management of severe sepsis and reduce mortality rate by 25 percent.

SourceBelsito & Company·JournalCritical Care Medicine·DateFeb 24, 2004
Apple iPhone 17 Pro

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

Cell cycle research earns biologist Virginia's top scientist award

Virginia Tech biologist Virginia Tyson earns top scientist award for his work in computational cell biology and mathematical models of molecular mechanisms controlling cellular growth and division. His research aims to understand and treat medical problems caused by molecular dys-regulation, such as cancer and nerve-cell regeneration.

SourceVirginia Tech·DateFeb 24, 2004

Thawing subarctic permafrost increases greenhouse gas emissions

The study found significant increases in methane emissions from thawing permafrost in Abisko, Sweden, potentially accelerating climate warming. Methane emissions have risen by up to 60% since 1970, with the ecosystem's sensitivity to temperature changes being rapid and dynamic.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateFeb 24, 2004

Coexistence of identical competitors: an old doctrine challenged

Researchers propose a mechanism that helps uncommon species coexist with identical competitors, aligning with discoveries of cryptic fig wasp species. The evolutionary local mate competition theory is tested, revealing a demographic advantage to uncommon species.

SourceBlackwell Publishing Ltd.·JournalEcology Letters·DateFeb 24, 2004
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.

Study shows women's medication use higher than expected

A study published in the American Journal of Obstetrics and Gynecology found that nearly all women take prescription medications (92%) and self-medicate with over-the-counter medications (96.5%). Researchers also discovered potential drug interactions, including those between antidepressants and herbal supplements like St. John's wort.

SourceUniversity of Minnesota·JournalAmerican Journal of Obstetrics and Gynecology·DateFeb 24, 2004

Exploring small RNA function

Researchers develop system to study small RNAs using siRNA inhibitors, providing unprecedented insight into RNA interference and microRNA functions. The technique enables rapid discovery of hundreds of microRNAs' regulatory roles, with significant implications for genetic studies.

SourcePLOS·JournalPLOS Biology·DateFeb 24, 2004

Study shows positive results for novel, patient-controlled transdermal system (PCTS)...

A study published in Anesthesia & Analgesia found that patients who used E-TRANS Fentanyl HCI PCTS experienced better pain control and fewer withdrawals compared to those who received a placebo. The novel transdermal system, approximately the size of a credit card, allows patients to control their pain management without needles or pumps.

SourceOrtho-McNeil Pharmaceutical, Inc.·JournalAnesthesia & Analgesia·DateFeb 24, 2004
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Common epilepsy treatment to be used for bulimia nervosa

Researchers at the University of Minnesota are testing a new treatment for bulimia nervosa, VNS Therapy, which targets the vagus nerve to reduce urges to binge eat and vomit. The study builds on previous research that found voluntary binge eating stimulates the vagus nerve, leading to involuntary behaviors.

SourceUniversity of Minnesota·DateFeb 24, 2004

Can we keep the cap on transgene escape?

Researchers Haygood, Ives, and Andow analyzed the probability of transgene escape within a given period, finding that it can happen much sooner than anticipated. Even with small leakage parameters, the risk of escape increases within ten generations.

SourceBlackwell Publishing Ltd.·JournalEcology Letters·DateFeb 24, 2004

Smoking in movies returns to 1950s levels

A recent study found that cigarette smoking in top-grossing films has increased to 1950s levels, with an average of 10.7 smoking incidents per hour of screen time. The rise in screen smoking is concerning for youth smoking habits, as previous studies have shown a link between movie smoking and youth tobacco use.

SourceCenter for Advancing Health·JournalAmerican Journal of Public Health·DateFeb 24, 2004

Insights gained from molecular modeling may lead to better insecticides

Researchers used molecular modeling to study the detoxifying proteins of black swallowtail butterflies and corn earworms. The earworm's protein is more flexible, allowing it to bind to and detoxify six different plant defense chemicals and three common insecticides, making it a master of adapting to new pesticides and host plants.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateFeb 24, 2004