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Science News Archive September 2003


Page 6 of 10

Consumer-driven health care research findings released

A two-year research project on Minneapolis-based Definity Health found that it attracted higher-income families and was popular among those aged 35-44. Consumer-driven plans also showed an increase in demand for prescription drugs over time.

Changing the face of biology

Two new centers will explore modular biology and biological circuits in human cells, aiming to unravel complex patterns of biological interactions. Researchers from diverse fields will work together to solve today's most challenging problems in biomedicine.

Apple iPhone 17 Pro

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

Some forms of cancer behave in an unexpected way

Researchers discovered a group of breast cancer tumors unrelated to typical patterns, with no clear link between tumor size and axillary lymph node cancer. This finding has significant implications for early diagnosis and treatment of women carrying the BRCA1 gene mutation.

U of T scientists among world's top young innovators

Researchers Ted Sargent and Alex Vasilescu have been named to Technology Review's TR100 list for their groundbreaking work in nanotechnology, face recognition, and human motion analysis. Their innovative research has the potential to impact various industries, including security, biometrics, and filmmaking.

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.

JCI Table of Contents, September 15, 2003

Researchers at Columbia University discovered that D-beta-hydroxybutyrate restores impaired brain function and protects against neurodegeneration in mice with Parkinson's disease. The study supports a critical role for mitochondrial defects in the progression of the disease.

HIV seen as less threatening in era of new treatments

A study suggests that new HIV treatments can lead to a decrease in people's concerns about the disease, resulting in increased transmission rates. Researchers believe that health professionals should address this issue by revamping prevention messages and programs.

Annals of Internal Medicine tip sheet, September 16, 2003

A new set of guidelines aims to standardize reporting of medical guidelines, reducing misunderstandings among clinicians, patients, and reporters. Blood pressure pills have been found to lower hip fracture risk in older adults, but the protective effect disappears after four months without treatment.

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.

T cell lifespan during HIV infection

A study challenges previous views on HIV-infected T cell lifespan, revealing that chronic immune activation drives high proliferation rates in memory T cells. HAART treatment improves long-lived T cell production, providing insight into the body's response to HIV infection.

UGA researchers find caffeine reduces muscle pain during exercise

Caffeine was found to reduce thigh muscle pain in young adult men during cycling exercise, suggesting its potential as a pain relief aid for endurance activities. The study's results may help explain why prior reports showed that caffeine improves exercise performance.

BMPs and bone loss: Get it through your noggin

The overproduction of noggin during aging may result in impaired bone building and function, leading to net bone loss. Researchers suggest that recombinant BMP2 may prove useful in reversing age-related bone loss.

Bacterial relationships revealed

A new approach to analyzing bacterial genomes has enabled the reconstruction of evolutionary events and the diversification of bacterial species over a billion years. This method uses gene indicators to chart the structure and substance of genomes, providing valuable insights into genomic evolution.

Study reveals why silicon crystals lose their 'edge'

Researchers at Ohio State University discovered a series of phase transitions that cause silicon crystals to round their edges as they reach thermal equilibrium. This finding has implications for the manufacturing of tiny electronic components, such as wires and semiconductors, which could be designed with specific patterns.

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.

Synthesis of cage-like silica structure easier and cheaper

Scientists at Penn State University have created a novel method for synthesizing cage-like silica structures by combining different templates and heating them in a microwave oven. This innovative approach produces larger particles with improved stability and reduced synthesis time compared to previous methods.

A cheap and easy way to treat Parkinson disease

A cheap and easy way to treat Parkinson disease involves infusing the ketone body D-beta-HB, which restores mitochondrial respiration and protects against neurodegeneration. This novel therapy supports a critical role for mitochondrial defect in Parkinson disease and offers new hope for treatment.

Powerful new method helps reveal genetic basis of cancer

Researchers developed a powerful new method called ROMA to compare normal cell DNA with breast cancer DNA, revealing chromosomal amplifications and deletions involved in breast cancer. The study also found large copy number polymorphisms in healthy cells that may underlie human traits.

Sick Kids researchers identify cancer stem cell for brain tumours

Brain tumours are difficult to cure despite advances in surgery and drug treatments. Researchers have identified a cancer stem cell that drives tumour growth, leading them to design therapies targeting these cells., The discovery sheds light on metastases and may lead to new targets for brain tumour therapy.

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.

Diabetes drug may be new tool in treating breast cancer

Researchers at Georgetown University Medical Center have discovered a direct link between genes causing breast and other cancers, and those linked to diabetes. The study suggests that drugs blocking the effects of one gene may be useful in stopping the conversion of normal tissue to malignant tissue.

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.

On the horizon of glucose monitoring: A review

Researchers review new glucose monitoring technologies, including non-invasive options that could lead to better compliance with testing recommendations. Continuous glucose monitoring systems also hold promise for early detection of hidden glucose trends.

'Shifty-eyed' monkeys offer window into brain's social reflexes

Researchers discovered that monkeys reflexively shift their attention to the direction of another individual's gaze, mirroring human behavior. This finding holds promise for a new animal model of social attention, which could lead to better treatments for autism and improved teaching methods.

Old drug works new tricks for iron overload heart disease

Researchers have discovered that oral medications commonly used to treat hypertension are also effective in preventing iron overload from causing permanent damage to the heart. The study suggests that these drugs may offer a new treatment option for patients with hereditary hemochromatosis and other genetic disorders

Controlling the internal clock in darkness

Scientists have found that brain clock cells in fruit flies rely on intercellular communication to sustain their circadian rhythms, even in the absence of light. The study also shows that a protein called PDF plays a crucial role in coordinating this process.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Pancreatic cancer linked to developmental cell signaling pathway

Researchers found that pancreatic cancer growth can be arrested by blocking the Hedgehog signaling pathway, which is active in human embryonic development. This pathway has been linked to several other types of cancer and may offer a new treatment avenue for pancreatic cancer.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Women who drink may be at greater risk of cardiovascular complications than men

Research confirms that female alcoholics experience more severe cardiovascular effects from heavy drinking than male counterparts, with these effects emerging sooner and at lower consumption levels. This phenomenon, known as 'telescoping,' highlights the need for women to be aware of their increased risk of heart disease due to alcohol...

Enzyme discovery sheds light on causes of rare disease, cancer

Researchers found genetic mutations in PHF9 disrupt critical intracellular repair mechanisms, leading to Fanconi Anemia's serious complications. The discovery highlights the importance of PHF9 as a potent cog in DNA repair machinery, with potential implications for preventing excessive DNA damage and cancer.

Discovering new regulators of the immune system

The study identifies three novel genes EDG1, PAK2, and TRAC-1 that repress T-cell receptor signalling in T-cells. These genes were discovered using a retroviral approach that allowed researchers to screen for genes critical for immune regulation.

Celestron NexStar 8SE Computerized Telescope

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

The risk of intimate partner violence varies by ethnicity

A longitudinal study found black and Hispanic couples are two to three times more likely to report partner violence than white couples, even after controlling for socio-demographic and psychosocial variables. The study identified ethnic differences in risk factors for partner violence.

Phages point the way to novel targets for antimicrobial drug discovery

Researchers at PhageTech identified phage-derived antimicrobial proteins that inhibit bacterial growth and kill bacteria in diverse ways. The company's technology platform has led to the discovery of novel bacterial targets essential to bacterial growth, which are being screened for small molecule compounds as potential new antibiotics.

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.

Optical detection of anomalous nitrogen in comets

Astronomers have successfully detected and measured the nitrogen-15 isotope in Comet LINEAR, revealing an isotopic abundance ratio of 140 ± 30. This finding provides crucial information about the composition of comets and their connection to heavier organic molecules, which are essential for life on Earth.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Study finds music can ease labor pain

Researchers at Case Western Reserve University found that listening to calming music during early active labor can significantly reduce the sensation and distress of pain. The study, led by Sasitorn Phumdoung, suggests that music may be a widely-used alternative to medication for easing pain during childbirth.

'Buckyball' material brings light into line

Researchers have developed a new material combining buckyballs with polyurethane to improve information processing in fibre-optic networks. The material interacts with light particles 10-100 times more strongly than previous C60-based materials, enabling faster and more efficient data transmission.

Physiologist’s findings make fishing tournaments safer … for fish!

A physiologist's research has led to the development of improved catch-and-release procedures in fishing tournaments, resulting in better physiological condition and higher energy stores for fish. The new methods prioritize water immersion during weigh-ins to minimize stress and improve survival rates for species like bass and walleye.

New research finds garlic kills slugs

A study by Newcastle University found that a refined garlic product is an effective killer of slugs and snails, with the potential to replace chemical pesticides. The researchers tested nine molluscicides, including a garlic-based product, and found it to be one of the most effective killers.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Starve a tumor, or feed a tumor?

Research suggests that cutting off blood vessels to starve tumors of oxygen may not always be effective, as it can also make them harder to treat. Instead, feeding the tumor with oxygen may be a more viable option to kill cancer cells.

Study suggests life insurance should cover people treated for HIV

A study published in The Lancet found that people with HIV who are successfully treated with HAART and hepatitis C negative have a mortality rate similar to those with cancer. This preliminary actuarial evidence supports the idea that life coverage could be considered under specific conditions.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Chemists ID process to sort carbon nanotubes by electronic properties

Researchers at Rice University have developed a technique to sort single-walled carbon nanotubes based on their electronic properties. This allows for the separation of metallic and non-metallic nanotubes, which could lead to significant advances in molecular electronics and device development.

Coal-eating bacteria may improve methane recovery

Brookhaven chemist Mow Lin's team has developed bacteria that can use coal as a nutrient and adsorb or degrade contaminants, improving methane recovery. Laboratory tests have shown these microbes to absorb contaminant metals, degrade dissolved organics, and break down coal to release trapped methane.

'Status' decides whether or not a language survives

A mathematical model developed by Cornell University engineers quantifies language death and offers strategies to preserve endangered languages. The model attributes the decline of languages to competition for speakers, with higher-status languages like English dominating in multilingual societies.

Media bribery study identifies potential problem countries

A new study by Purdue University has identified countries with high risks of media bribery, with Finland ranked highest. The index evaluates 8 factors to determine the likelihood of journalists accepting cash from government officials or businesses in exchange for news coverage.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Using ions to probe ionic liquids

Brookhaven chemists use pulsed electron beams to initiate chemical reactions in ionic liquids, revealing unanticipated reactivity patterns. The study's findings have profound implications for uses of ionic liquids in radiation-filled environments like the nuclear fuel cycle.

Potent toxin reveals new antibiotic resistance mechanism

Researchers at University of Wisconsin-Madison uncover a potent toxin reveals new antibiotic resistance mechanism, where bacteria deploy a protein to intercept and inactivate the toxin. This mechanism points to the fact that bacteria continue to find new routes to evade antibiotics, threatening the fight against deadly bacteria.