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Science News Archive September 2003


Page 2 of 10

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.

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.

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.

Apple iPhone 17 Pro

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

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.

'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.

A low-sodium diet does not raise blood cholesterol levels

A new study examined lipid data from the DASH-Sodium Trial and found no notable increases in blood lipid levels among participants on low, intermediate, or high sodium intake levels. The findings are significant for public health recommendations to reduce sodium intake and lower high blood pressure.

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.

UVa scientists detail salmonella protein

Researchers at UVa and Rockefeller University found that SipA, a Salmonella protein, tethers to actin, allowing bacteria to infect cells. The study's findings may lead to the development of new treatments against severe infections.

Soldier or worker – what do the genes say?

Scientists identified 25 genes expressed differently in soldier and worker termites, with workers having higher levels of cellulose-degrading genes. Soldiers had higher levels of muscle- and cytoskeleton-related genes, suggesting their large mouthparts may be linked to these genes.

2003 HBP news tips

Studies found that people with high-normal blood pressure already have signs of target organ damage and are at increased risk for cardiovascular death. Potassium intake was also shown to reduce the size of a stroke in an animal study.

Fibroblasts hold clues to fat, scars and inflammation

Scientists found certain fibroblasts can transform into myofibroblasts, leading to fibrosis, and lipofibroblasts, developing into fat cells that cause thyroid eye disease. This research may lead to new diagnostic tools and treatments for diseases like fibrosis and fatty tissue buildup.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Are hepatitis A vaccine boosters unnecessary?

Hepatitis A vaccine boosters are unnecessary for healthy individuals, according to a meeting of experts; protective antibody amounts persist beyond 10 years after primary vaccination. Further investigations are needed for special patient groups.

Innovative shuttle bus debuts in Washington, D.C.

The new yellow bus features alternative fuel, a low floor, and complies with the Americans with Disabilities Act (ADA), providing easy accessibility for passengers. The bus is designed to reduce dependence on foreign energy sources and protect national parks' pristine environment.

Better outcome for ICU patients after removal of bacteria from digestive tract

A randomized trial found that surgical decontamination (SDD) significantly reduces mortality in ICU patients by lowering antibiotic-resistant bacteria infections. SDD is recommended for patients on mechanical ventilation or in ICUs with low vancomycin-resistant enterococcus and meticillin-resistant S aureus prevalence.

Salk news: A new view on brain function

Researchers Terrence Sejnowski and Simon Laughlin argue that the human brain operates as a highly efficient hybrid device capable of making sophisticated computations. The brain's long-distance communication systems have been optimized for energy efficiency through millions of years of evolution.

New method could aid in prostate and breast cancer diagnosis

Researchers have created a new method that could detect diseases at earlier stages than possible now, using protein targets like PSA. The method is a million times more sensitive than conventional methods and has the potential to revolutionize cancer diagnostics and treatment.

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.

Post-Sept. 11 study results published by U. of Colorado Center

A new book published by the University of Colorado Center explores post-disaster research and findings from 22 studies on emergency response, corporate interactions, volunteer behavior, and risk communication. The studies aim to improve public policy and disaster response in the face of terrorist attacks.

EUROCARE 3 - new European cancer survival figures

The report analyzed data from 22 countries and 42 types of cancer, showing average five-year survival rates ranging from 94% for lip cancer to less than 4% for pancreatic cancer. Regional variations were found, with some Eastern European countries having lower survival rates and western Europe performing better.

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.

Heading into difficulty?

Recent soccer heading practices have been found to lead to weaker neurocognitive performance, including decline in cognitive function, verbal learning difficulties, and reduced attention span. Research suggests that even short-term heading may pose a risk factor for long-term brain damage.

Better outcome for ICU patients after removal of bacteria from digestive tract

A randomized trial found that selective use of antibiotic decontamination (SDD) significantly reduced ICU deaths by 15% and overall hospital deaths by 24%, as well as infection rates with antibiotic-resistant bacteria by 16%. The study advocates for the use of SDD in patients on mechanical ventilation or in ICUs with low prevalence of ...

NIH awards $51 million to fight autoimmune diseases

The NIH has awarded $51 million to fund the Autoimmunity Centers of Excellence program, which aims to develop new immune-based therapies for autoimmune diseases. This expansion will enhance interactions between scientists and clinicians to accelerate translation of research findings into medical applications.

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.

Salmonella uses molecular staples to change structure of infected cells

Researchers discovered how Salmonella injects proteins into host cells that staple actin molecules together, changing the cell's structure to facilitate bacterial invasion. This complex protein secretion system allows Salmonella to manipulate host cells in unique ways, enabling it to evade immune responses.

Deep brain stimulation offers benefits against Parkinson's

A long-term follow-up study found that deep brain stimulation on the subthalamic nucleus improved motor scores by an average of 48% and reduced medication requirements. Younger patients with advanced Parkinson's Disease experienced sustained improvement in motor function for up to two years.

Nordic collaboration gives new insights into adjuvant chemotherapy

A large-scale clinical study by Nordic collaboration has provided new insights into the effects of chemotherapy in colorectal cancer. The analysis demonstrated that among 2,223 patients, those given chemotherapy as part of routine care had a five-year survival rate of 56%, compared to 49% for those treated by surgery alone.

Danger on chromosome 15

Researchers have discovered four new genes in the most unstable part of chromosome 15 that contribute to Prader-Willi and Angelman syndromes and hereditary spastic paraplegia. These findings can expand genetic diagnosis of these diseases, including prenatal genetic counseling.

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.

MIT: Atomic insight may lead to cleaner cars

The MIT team has developed a promising catalytic converter that controls emissions and can withstand excess oxygen. By understanding the atomic-level reaction process of sulfur trioxide formation, they aim to improve fuel efficiency and reduce pollution.

Researchers solve the mystery of a key structure in immune system cells

Researchers identified a bull's eye-shaped structure between white blood cells that enhances sensitivity to antigens but cuts off signaling beyond a threshold, preventing T-cell death. This adaptive control device enables the immune system to respond to signs of infection over a wide range of magnitudes.

Software tackles protein pathways

Researchers have developed a new software tool called PathBLAST that can represent and compare protein interaction networks from different organisms. The tool uses algorithms to translate the information into a linear code, allowing for rapid comparisons of interaction networks.

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Energy Department-funded projects win 35 R&D awards

The Department of Energy's national laboratories have received a total of 35 R&D awards, recognizing their cutting-edge technologies. The awards are shared among 11 laboratories and partner businesses and universities.

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.

Dog genome published by researchers at TIGR and TCAG

Researchers at TIGR and TCAG published the first partial shotgun-genome sequence of the dog genome, revealing similarities with human and mouse genomes. The study identified 974,400 SNPs in dogs and found that the canine lineage diverged from the common ancestor of humans, mice, and other species.

Academic clinical research is under threat from the EU

The EU's new clinical trial directive may hinder international collaborations, leading to delays in cancer treatment development. This could result in patients being deprived of life-saving treatments, as the effectiveness of new drugs would be determined solely by pharmaceutical industry-sponsored research.

Celestron NexStar 8SE Computerized Telescope

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

Data on global vaccination coverage paints overoptimistic picture

A study by the World Health Organization found that officially reported global vaccination coverage rates are higher than actual rates, highlighting issues with data quality. The investigation compared national data with a 'gold standard' household survey method in 45 countries between 1990 and 2000.

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.

Sex selection for social reasons unlikely to skew gender balance in Germany and UK

A survey of over 1,000 men and women in Germany and the UK found that there is little support for sex selection for non-medical reasons. In Germany, only 6% would take advantage of preconception sex selection, while in the UK, it was even lower at 21%. The researchers conclude that any potential gender imbalances due to sex selection a...

Brain transportation system defect linked to Huntington's by UCSD team

A protein called huntingtin is critical for normal neuronal transportation, but a defective version causes physical blockage and binding interference, leading to neuronal damage. The study supports the hypothesis that blockage of neuronal transportation contributes to neurodegenerative diseases.

Duke to lead first comparative trial of hepatitis C therapies

A new clinical trial led by Duke University aims to compare the efficacy of two pegylated interferon treatments for hepatitis C virus. The IDEAL trial will enroll 2,880 patients and determine which treatment results in a sustained viral response in the largest proportion of patients.

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Genes can individualize treatment for high blood pressure

Researchers found genetic associations with blood pressure, including a SNP in adducin 2 that lowered systolic blood pressure in hypertensive individuals treated with beta-blockers. These findings may enable personalized treatment approaches to manage high blood pressure.

Study shows increased risk of cancer for stressed women

A recent study found a statistically significant positive relationship between stress and breast cancer, independent of potential confounding factors. Women who experienced stress had double the risk of developing breast cancer over a 24-year period compared to those with no stress.