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Science News Archive 2007


Page 98 of 203

Tennis elbow procedure demonstrates long-term success

A new study published by the American Orthopaedic Society for Sports Medicine found that arthroscopic treatment of tennis elbow provides excellent long-term pain relief and functional restoration. The procedure demonstrated a high success rate, with 93% of patients satisfied and no repeat surgeries or injections required.

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.

On target

Researchers have identified IL6 as a protein that stimulates tumor growth when activated by Ras, leading to increased blood vessel formation. Suppressing IL6 activity has shown promising results in fighting tumor formation in preclinical models.

Potential new target for cancer found

Researchers at Duke University Medical Center have discovered that the overactive Ras gene is responsible for above-normal secretion of interleukin-6 (IL-6), which drives tumor growth. Inhibiting IL-6 production reduces new blood vessel creation, crucial for tumor development and nourishment.

Apple iPhone 17 Pro

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

Mayo Clinic real-time 3-D ultrasound speeds patient recovery

Mayo Clinic physicians have developed a new technique using real-time 3-D ultrasound to block nerve function in selected areas of the body prior to surgery. This allows patients to recover faster and with less need for pain medication. The technique has been successfully used in over 150 surgeries, showing improved outcomes for patients.

Co-operation between GSF and clinic improves outlook for sarcoma patients

A phase III study of 341 high-risk patients with deep, local sarcomas shows significant improvement in tumour response and survival rates when treated with a combination of chemotherapy and local, deep hyperthermia. The combined therapy has been applied to patients before surgery, demonstrating its effectiveness.

E-shop till you drop

A research team used Data Envelopment Analysis to evaluate the success of internet shops, finding that efficient websites like Jcrew and Abercrombie can serve as role models for less effective sites. By reducing inputs or increasing outputs, these non-efficient sites can improve their performance and competitiveness.

The gobbling dwarf that exploded

Researchers discovered clear changes in interstellar material absorption, indicating the existence of gaseous shells around a white dwarf. The system was likely composed of a white dwarf feeding on its red giant companion, leading to the supernova explosion. This finding strongly supports the Type Ia supernova scenario.

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.

On a wire or in a fiber, a wave is a wave

Surface plasmon polaritons move as waves and follow conventional optics' rules, limiting their size. Researchers developed a comprehensive theory to control SPPs, providing a bridge between nanoscale electronics and photonics.

Depression lingers for female heart attack victims

A recent study published in the European Journal of Cardiovascular Nursing reveals that women who have suffered heart attacks experience higher rates of lingering depressive symptoms compared to their male counterparts. Women scored lower in physical and social functioning after one year, with 14.3% experiencing worsening depression.

Selenium supplements may increase the risk of type 2 diabetes

A randomized clinical trial found that selenium supplementation increased the risk of developing type 2 diabetes by 55%, with higher levels associated with a greater risk. The study suggests that taking high doses of selenium may have detrimental effects in well-nourished populations.

International Polar Year scientists instruct teachers on global climate change

During the International Polar Year, University of Alaska Fairbanks hosts summer institutes to train K-12 teachers on climate change. Seven UAF scientists provide hands-on lessons, translating scientific research into classroom useable content. The goal is to energize youth about science and promote Alaska's Grade Level Expectations.

Chromosome glue repairs damaged DNA

Scientists at Karolinska Institutet have found a new way chromosomes are repaired after damage, contrary to the long-held view that cohesion only occurs during cell division. The discovery shows cohesin reactsivate when DNA breaks, allowing cells to fix damaged sister chromatids.

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.

Venous thromboembolism risk among hospitalized patients

A study estimates nearly one-third of hospitalized US patients are vulnerable to VTE, which can lead to dire complications. Researchers stress the need for reinforcing national guidelines and monitoring compliance with hospital protocols for VTE prevention, as well as educating outpatients on preventive measures.

The origin of perennial water-ice at the South Pole of Mars

Researchers suggest that perennial water-ice deposits at Mars' South Pole are juggled between the North and South Poles every 51,000 years due to precession. Water vapour is transported from the North Pole to the South Pole, where it re-condenses and freezes, forming a thick layer.

For primates, tourism can be less fun than a barrel of monkeys

A 19-year study found that primate tourism practices can lead to adult aggression, disease transmission, and increased infant mortality. The study suggests that range restriction and provisioning for tourists contribute to the problem, making them an inappropriate management strategy.

Democrats may be hurt by anti-war divisions in 2008

Research suggests that anti-war activists are divided between supporting the Democratic Party and others, potentially complicating their electoral prospects. The study found that grassroots activists support the Democrats at a rate of around 40%, while non-Democratic activists work with organizations like United for Peace and Justice.

Celestron NexStar 8SE Computerized Telescope

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

Researchers studying fantasy baseball and 'competitive fandom'

Researchers studying fantasy baseball aim to comprehend expert and novice players' approaches, as well as their learning processes. They analyze three leagues with varying levels of expertise, gathering insights into player strategies, community connections, and the role of technology in gaming.

Groin injuries averted by preseason injury prevention

A preseason groin injury prevention program reduced groin injuries by 28% in professional soccer players, with a significant decrease in acute injuries. The program's success was attributed to multidisciplinary efforts and has the potential to become widely adopted in professional soccer teams.

How plants learned to respond to changing environments

Researchers discovered how plants evolved to respond to environmental changes by repressing growth, a process integrated by the plant growth hormone gibberellin. The ability emerged in flowering plants 300 million years ago and is linked to major stages in their evolution.

Domestic violence, psychological distress are recipe for higher unemployment

A new study from the University of Washington finds that domestic violence and psychological distress can lead to increased unemployment, especially among adolescent mothers. The research followed 234 women for 13 years and found that those with high levels of psychological distress were more likely to be unemployed.

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.

Safer shipping by predicting sand wave behavior

Dutch researcher Joris van den Berg developed a mathematical model to predict sand wave movement, improving safety for shipping and offshore infrastructure. The model simplified equations, enabling quick predictions of interventions like dredging and potentially unlocking studies on sand waves and banks.

New lens device will shrink huge light waves to pinpoints

Scientists at the University of Michigan developed a lens-like device that focuses electromagnetic waves down to tiny points, removing wavelength limitations for data storage and sensing applications. The breakthrough enables CD storage to hold up to one hundred times more information using terahertz radiation.

Semiconductor membrane mimics biological behavior of ion channels

Researchers at the University of Illinois have created a semiconductor membrane that can mimic the operation of biological ion channels, with applications in single-molecule detection, protein filtering, and DNA sequencing. The membrane uses electrostatic potentials to regulate charged species and ions, offering a degree of tunability ...

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Src inhibitors may prove beneficial in breast cancer therapy

Researchers found that Src, a protein that cooperates with estrogen to break down ER-alpha, is overexpressed in ER-alpha–negative breast cancers. Src inhibition was shown to impair estrogen-stimulated ER-alpha proteolysis, suggesting that Src may stimulate estrogen-dependent ER-alpha degradation in these tumors.

Automated tailgating cuts pollution

Researchers found that platooning with four vehicles reduces drag, saves fuel and lowers greenhouse gas emissions. Cars in a platoon experience lower drag coefficients as they move closer together.

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.

Trial examines diaphragm use in preventing HIV in women

A clinical trial involving 5,045 women in South Africa and Zimbabwe found no statistical difference in the rate of new HIV infections between those who used a diaphragm with lubricant and male condoms versus only male condoms. The study found an overall HIV incidence rate of 4.0 percent, with no additional protective benefit from addin...

Bak protein sets stressed cells on suicide path, researchers show

Researchers found that Bak protein breaks down mitochondria into vulnerable spheres, allowing Bax to poke holes and release pro-death contents. This discovery sheds light on the mechanisms of programmed cell death (apoptosis) and its potential role in diseases like stroke and cancer.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Mental health: Neglected in the UK

UK mental health wards are criticized for being counter-therapeutic and unsafe, while a survey shows fewer people in England favor more tolerance towards mental illness. The Lancet editorial highlights the need for a substantial shift in public and ministerial attitudes to address these issues.

New treatment model for HIV

Researchers have developed an induction-maintenance treatment strategy that balances viral suppression with minimal harm to patients. The model suggests six to ten months of induction therapy can achieve durable suppression of HIV, making it a promising approach for eradicating resistant viruses.

Cells take risks with their identities

A study has discovered that many human genes hover between 'on' and 'off' in any given cell, failing to finish transcription but remaining primed. This vulnerability could explain why cells acquire new properties in diseases like cancer and diabetes.

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.

EPA foregoes opportunity to improve nanotechnology oversight

The US Environmental Protection Agency has rejected the need for improved nanotechnology oversight, prompting concerns over public and market safety. The agency's current approach is inadequate to deal with nanotechnology's novel biological and ecological characteristics, according to former officials.

Children with Tourette's quicker at certain mental grammar skills

A study found that children with Tourette's syndrome are quicker at processing certain mental grammar skills, including rule-governed language tasks. They showed superior performance compared to typically developing children in producing grammatically correct past tense forms.

Economical and cleaner cars with lean-burn catalytic converter

Researchers have developed a new type of NOx Storage Reduction (NSR) catalytic converter that alternates between lean-burn conditions to reduce emissions and fuel-rich periods for regeneration. This technology has yielded important insights into the function of various components in the catalytic converter.

JCI table of contents: July 12, 2007

Researchers found that Src inhibitors can target aggressive breast cancers, which lack estrogen receptors and are more prone to growth. By inhibiting the protein Src, these treatments show promise in improving patient outcomes.

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.

Americans trail Chinese in understanding another person's perspective

A study at the University of Chicago found that Americans struggle to consider another person's point of view, whereas Chinese people are more adept at it. The researchers devised a game to test this ability and found that Chinese subjects quickly focused on the objects the director could see, while Americans took longer to figure it out.

Unraveling the physics of DNA's double helix

Researchers at Duke University have made direct measurements of DNA's forces within single strands that wind around each other to form the double helix. The study, published in Physical Review Letters, reveals new insights into the stacking and pairing forces between base units.

A walking robot goes mountaineering

A walking robot, RunBot, has been engineered to mimic human gait and adapt to different environments, including mountainous terrain. The robot's ability to learn from trial and error allows it to adjust its gait in response to visual input, ensuring stability and balance on slopes.

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.

Threats to hope -- Desperation affects reasoning about product information

A new study by USC researchers found that when hopes are threatened, consumers turn to the marketplace for help, relying on favorable sources of information. This leads to 'motivated reasoning,' where consumers believe what they want to believe about products promising to help, even if the arguments aren't credible.

Speed bumps less important than potholes for graphene

Researchers from NIST and Georgia Tech created detailed maps of electron interference patterns in graphene to understand how single-atom defects affect charge flow. The results show that missing carbon atoms cause strong scattering, unlike irregularities in the underlying silicon carbide.

Simulated crop provides answer to irrigation issues

A study found that shifting to water-efficient crops like cotton and soybean can decrease irrigation water use by nearly 66% on rice fields. Implementing irrigation water pricing also improves environmental conditions, but its impact on farm income is modest.

One man's junk may be a genomic treasure

Scientists at UCSD School of Medicine have found that 'junk' DNA sequences may serve as punctuation marks to organize functional domains within the genome. This discovery could lead to breakthroughs in gene therapy by understanding how genomic material contributes to the regulation of genes.

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.

'Shoulda, woulda, coulda ...'

New research reveals counterfactual thinking in readers is about undoing choices, while actors alter problem-solving processes. This challenges previous theories on the nature of this psychological mechanism.

Investment in infrastructure gets Uganda up and running

Research by Aldret Albert Musisi shows that Uganda's physical infrastructure investment will pay itself back with substantial returns, stimulating sectoral growth and alleviating poverty. Investments in electricity and services sectors yield the greatest returns, while infrastructure upgrades benefit agriculture and industry.

Emigration of unskilled workers increases child labor

A study by Elias Dinopoulous and Laixun Zhao found that emigrating unskilled workers from poor countries increases child labor rates. Additionally, child-wage subsidies lower costs for employers, leading to more child labor, according to researchers.