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Science News for November 30, 2004


Spider silks, the ecological materials of tomorrow?

Researchers are exploring spider silk's potential as an ecological material, with applications in wound-closure systems and durable surgical implants. By engineering artificial proteins, they hope to create intelligent materials that can assemble into new types of mesh with biochemically active groups.

SourceBMC (BioMed Central)·JournalMicrobial Cell Factories·DateNov 30, 2004

Imaging tool may help physicians diagnose bipolar disorder

Researchers have identified significant differences in brain chemistry between people with and without bipolar disorder using MR spectroscopy. The study's findings suggest that this imaging tool may help distinguish bipolar disorder from major depression, improving treatment outcomes.

SourceRadiological Society of North America·DateNov 30, 2004

AGU journal highlights - 30 November 2004

Scientists study hydrogen's effect on upper mantle melting, revealing new data for improving earthquake hazard estimates. A computing technique analyzes seismic data to monitor active volcanoes worldwide. Comets may help track solar ejections and heliospheric conditions.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateNov 30, 2004
Celestron NexStar 8SE Computerized Telescope

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

Tamoxifen's risks similar in African American and white women

A study of over 20,000 women found tamoxifen reduces contralateral breast cancer risk by 47% in both African American and white populations. However, tamoxifen use is associated with a higher risk of thromboembolic events, particularly when combined with chemotherapy.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateNov 30, 2004

The logic of life brings order to our genes

Professor Carsten Peterson and his team demonstrate how genes interact to produce stable systems, using the fruit fly as a model organism. They found that canalyzing rules, where one controlling gene activates another without affecting it, are present in almost 200 genetic networks in fruit flies.

SourceSwedish Research Council·JournalProceedings of the National Academy of Sciences·DateNov 30, 2004
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Highlights of the December Journal of the American Dietetic Association

Researchers found that increasing physical activity among premenopausal women can significantly lower body mass index, percent of body fat, and other weight-related measurements. Low-folate diets may contribute to the high rate of heart disease in Central and Eastern Europe, particularly among men aged 30-50 years.

SourceAmerican Dietetic Association·JournalJournal of the American Dietetic Association·DateNov 30, 2004

Scholarship to attract 'top students' for optometry

The Foundation for Education and Research in Vision (FERV) has awarded a Presidential Endowed Scholarship to Dr. Desiree T. Hopping, a UH alum and outgoing FERV president. The scholarship aims to support entering freshmen or first-year professional students with outstanding academic achievements and leadership skills.

SourceUniversity of Houston·DateNov 30, 2004

NIH makes award to UNC for Genome Fingerprint Scanning program

The GFS program enables matching mass spectrometry data to raw genome sequences, identifying novel proteins in bacteria and model organisms. This grant upgrades the program to benefit the global proteomics community by providing a free, widely-used resource.

SourceNIH/National Center for Advancing Translational Sciences (NCATS)·DateNov 30, 2004
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Imatinib (Gleevec) has activity in AIDS-related Kaposi's sarcoma

Researchers found that imatinib partially regressed lesions and stabilized disease in patients with AIDS-related Kaposi's sarcoma. However, high toxicity was observed due to medication interactions, highlighting the need for optimized dosing schedules.

SourceAmerican Society of Clinical Oncology·JournalJournal of Clinical Oncology·DateNov 30, 2004

MRI shows liver tumors freezing in real time

Using MRI guidance, doctors can target and freeze liver tumors with cryotherapy, achieving high success rates and minimal scarring. The non-invasive procedure results in quicker recovery times and shorter hospital stays.

SourceRadiological Society of North America·DateNov 30, 2004
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Herpes virus offers new hope in curing cancer

Researchers tested a weakened version of herpes simplex virus against neuroblastoma tumors, with only the virus proving effective in treating the cancer. The study shows promise for using the therapy in children and potentially in other cancers as well.

SourceCincinnati Children's Hospital Medical Center·JournalPediatric Blood & Cancer·DateNov 30, 2004

Purdue engineers create model for testing transistor reliability

Researchers create model that evaluates the reliability of two types of transistors simultaneously, enabling accurate predictions and reducing testing resources. The new model helps understand how chemical bonds break over time, improving the performance and longevity of CMOS computer chips.

SourcePurdue University·DateNov 30, 2004

Hebrew University researcher finds 'sweet' way to help prevent heart disease

A recent study published in Journal of Agricultural and Food Chemistry found that drinking pomelit juice daily can lower LDL blood cholesterol and increase antioxidant activity. Hypercholesterolic patients may benefit from adding fresh Sweetie juice to their diet as a preventative measure against future heart disease.

SourceThe Hebrew University of Jerusalem·JournalJournal of Agricultural and Food Chemistry·DateNov 30, 2004

Some harms of beta-carotene supplementation may persist after discontinuing use

A long-term study found that women had a higher risk of death from cardiovascular disease and lung cancer after stopping beta-carotene supplements, while the excess risk in men disappeared. The results suggest careful monitoring is needed to document long-term safety and efficacy.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateNov 30, 2004

Thyroid treatment can trigger homeland security detectors

High levels of radiation from thyroid treatment can trigger homeland security detectors, which are now more common with increased sensitivity. Hospitals should develop documentation guidelines for patients undergoing nuclear medicine procedures to minimize this risk.

SourceRadiological Society of North America·DateNov 30, 2004
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Citrus shows promise for certain childhood cancer

Research by Texas Agricultural Experiment Station scientists has shown that citrus compounds called limonoids targeted and stopped neuroblastoma cells in the lab. The finding is promising not only for its potential to arrest cancer but also because limonoids induce no side effects, according to Dr. Ed Harris.

SourceTexas A&M AgriLife Communications·DateNov 30, 2004

Other highlights in the December 1 JNCI

A new study of pesticide applicators found an increased incidence of lung cancer associated with chlorpyrifos exposure. Meanwhile, research on celecoxib-induced apoptosis in human lung cancer cells and the molecular mechanism of DNA repair proteins' relation to malignant melanoma are also reported.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateNov 30, 2004

Wipeout! Surfing creates wave of unique injuries

A study by Dr. Jeremy Kuniyoshi reveals that surfing-related injuries are often complex and require a deep understanding of the sport to diagnose accurately. Common injuries include dislocated shoulders, head and neck trauma, and environmental injuries such as stings from marine life.

SourceRadiological Society of North America·DateNov 30, 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.

Mayo Clinic discovers potential marker for aggressive kidney cancer

Researchers at the Mayo Clinic have identified a potential biomarker for aggressive kidney cancer, which can help improve treatment outcomes by identifying patients at high risk of disease progression. The study found that high levels of B7-H1 molecule are associated with increased risk of cancer spread and mortality.

SourceMayo Clinic·JournalProceedings of the National Academy of Sciences·DateNov 30, 2004

Holiday feasting could sabotage liposuction results

A recent study by the American Society of Plastic Surgeons reveals that patients who eat a proper diet and exercise after liposuction are more likely to achieve positive long-term results. These individuals have a 96% chance of losing weight and a 15 times higher likelihood of being satisfied with their results.

SourceAmerican Society of Plastic Surgeons·JournalPlastic & Reconstructive Surgery·DateNov 30, 2004

Employment reduces chronic drug use, UH professors find

A National Institutes of Health (NIH) funded study by University of Houston professors found that employment reduces chronic drug use among female welfare recipients. Employment rates rose from five percent to nearly 39 percent, with a significant decrease in drug usage frequency.

SourceUniversity of Houston·DateNov 30, 2004

Small study shows SAMe may improve treatment of depression

A recent study found that combining SAMe with antidepressant medication improved symptoms in 50% of participants and led to complete remission in 43% after six weeks. The study, led by Massachusetts General Hospital, investigated the efficacy of SAMe in patients with continuing symptoms despite initial treatment.

SourceMassachusetts General Hospital·JournalJournal of Clinical Psychopharmacology·DateNov 30, 2004
Apple iPhone 17 Pro

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

Fragmented habitats no ultimate refuges for forest-dwelling tropical birds

A study led by Duke University researchers found that species tolerating secondary habitats are not more resilient to deforestation than those dependent on primary forests. The study suggests that all bird species in the region face equal threats from habitat loss, regardless of their adaptability.

SourceDuke University·JournalConservation Biology·DateNov 30, 2004