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Science News for October 28, 2005


Study establishes link between air pollution, ischemic strokes

A study examining air quality over 37,000 days found a one percent higher risk of hospitalization for ischemic stroke on high-pollution days. The researchers believe that particulate matter in the air promotes inflammation and can lead to changes in heart rate and blood pressure.

SourceBeth Israel Deaconess Medical Center·DateOct 28, 2005

What is the best treatment strategy for early rheumatoid arthritis?

Initial combination therapy with either prednisone or infliximab significantly reduces progression of radiographic joint damage and improves functional outcomes compared to DMARDs alone or step-up combination therapy. Patients treated with initial combination therapy also experience earlier relief from symptoms.

SourceWiley·JournalArthritis & Rheumatism·DateOct 28, 2005
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.

Which drugs should health plans cover?

Experts from Group Health Research Institute outline five principles for making informed decisions on drug coverage, prioritizing true experiments, real health outcomes, and full ranges of alternatives. These evidence-based guidelines aim to protect patients and promote cost-effectiveness.

SourceGroup Health Research Institute·JournalJournal of General Internal Medicine·DateOct 28, 2005

Regular physical activity may strenghten knee cartilage

A study found that moderate exercise can improve knee cartilage strength and elasticity, reducing the progression of osteoarthritis. Regular physical activity has been shown to reduce knee pain and stiffness, as well as improve functional performance tests.

SourceWiley·JournalArthritis & Rheumatism·DateOct 28, 2005

Medical news tips

Researchers at Johns Hopkins Kimmel Cancer Center have found hormone therapy will not diminish the value of radiation for prostate cancer. Additionally, a leukemia drug shows modest benefits in suppressing PSA levels for some men with localized prostate cancer.

SourceJohns Hopkins Medicine·DateOct 28, 2005

Alaska avian flu project issues initial surveillance results

Scientists in Alaska screened over 4,500 samples for avian influenza viruses, detecting 30 cases with varying subtypes. Notably, none of these strains tested positive for the highly pathogenic H5N1 subtype, but researchers will continue to monitor the state's risk and build predictive models to understand virus evolution.

SourceUniversity of Alaska Fairbanks·DateOct 28, 2005
Apple iPhone 17 Pro

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

'Know thyself' — easier said than done

A recent study found that people generally overestimate their abilities and health risks, leading to poor decision-making in areas such as health management, education, and the workplace. This can have serious consequences, including underestimating susceptibility to health risks and overconfidence in professional competence.

SourceAssociation for Psychological Science·JournalPsychological Science in the Public Interest·DateOct 28, 2005

What makes the brain tick, tick, tick. . .

Researchers at Duke University explore the neural mechanisms of interval timing, a fundamental process involved in tasks like walking, speech recognition, and learning. They propose a new model involving the 'coincidence detection' of oscillatory patterns, which integrates information from various brain structures.

SourceDuke University·JournalNature Reviews Neuroscience·DateOct 28, 2005

Novel discovery of 'DCDC2' gene associated with dyslexia

Researchers identified the DCDC2 gene as a significant contributor to dyslexia, disrupting brain circuitry that enables reading. The study's findings have the potential to lead to early and accurate diagnoses, as well as more effective educational programs for individuals with dyslexia.

SourceYale University·JournalProceedings of the National Academy of Sciences·DateOct 28, 2005
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.

Picky female frogs drive evolution of new species in less than 8,000 years

Researchers found that reestablished contact between two isolated green-eyed tree frog populations led to the emergence of a new species due to females' preference for mates from their own lineage. This preference resulted in reproductive isolation and accelerated evolution, ultimately giving rise to a distinct species.

SourceUniversity of California - Berkeley·JournalNature·DateOct 28, 2005

Study: Arctic undergoing holistic climate-change response

A comprehensive Arctic climate change study examines the cascading effects of warming on various components, including land, vegetation, animals, weather, and human systems. The research highlights the dramatic impacts of warming on Arctic ecosystems, emphasizing the need for policymakers and the public to understand these changes.

SourceUniversity of Alaska Fairbanks·JournalClimatic Change·DateOct 28, 2005

Volunteers sought for avian flu vaccine study

A new vaccine study is testing a targeted vaccine against the H5N1 strain of avian influenza, aiming to protect vulnerable populations. Participants will receive three doses of either the vaccine or placebo over six months, with blood samples collected to test for protection.

SourceVanderbilt University Medical Center·DateOct 28, 2005

Lack of specialist care for head injuries costing lives

A recent study has found that patients with head injuries are ten times more likely to die than those with other types of injuries. The lack of neurosurgical care is associated with a significant increase in mortality rates, highlighting the need for improved emergency response systems.

SourceUniversity of Manchester·JournalThe Lancet·DateOct 28, 2005
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.

Botox® injections effective for treating stroke spasticity

A study found that Botox injections significantly improved muscle tone and functional disability in stroke patients, with at least 50% achieving a 1-point or greater improvement. The treatment was safe and well-tolerated, with only 7% reporting adverse events.

SourceAtrium Health Wake Forest Baptist·DateOct 28, 2005

Hepatitis C complicated by morphine withdrawal

Research by Chuan-Qing Wang and colleagues found that morphine withdrawal and precipitated withdrawal increase HCV replicon expression and inhibit IFN-alpha production in liver cells. This study suggests that opioid abuse may contribute to the chronicity of HCV infection and promote disease progression.

SourceAmerican Journal of Pathology·JournalAmerican Journal Of Pathology·DateOct 28, 2005

Publications of the Astronomical Society of the Pacific highlights

This issue features studies on variability in NGC2301 II, superhumps in cataclysmic binaries, and host galaxies of QSOs at high redshift. Researchers also investigate data exchange standards for optical interferometry and analyze seeing data for the Advanced Technology Solar Telescope.

SourceUniversity of Chicago Press Journals·JournalPublications of the Astronomical Society of the Pacific·DateOct 28, 2005
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.