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Science News for February 18, 2009


A budding role for a cellular dynamo

Researchers discovered protein Bud14 inhibits formin interactions, regulating actin filament length. This discovery advances understanding of cell division and development, with implications for human health conditions such as infertility and deafness.

SourceBrandeis University·JournalDevelopmental Cell·DateFeb 18, 2009
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.

Questions of ethics and quality cloud globalization of clinical trials

The shift of clinical trials to developing countries raises questions about the scientific value and ethical implications for patients in the US. Researchers found that over half of study sites were outside the US borders, and companies were testing drugs in emerging markets without aligning with local health needs.

SourceDuke University Medical Center·JournalNew England Journal of Medicine·DateFeb 18, 2009

Stenting not necessary in late treatment of heart attacks

A new study by Duke University Medical Center reveals that delayed treatment for heart attacks using drugs alone is as effective as treatment with stents, offering a cheaper and less invasive option. The research found modest benefits in reducing chest pain but no long-term quality of life difference between the two approaches.

SourceDuke University Medical Center·JournalNew England Journal of Medicine·DateFeb 18, 2009

Researcher seeks to turn stem cells into blood vessels

A Johns Hopkins engineer is working on coaxing human stem cells to form new blood vessels that could replace damaged tissue in people with heart disease and other illnesses. The researcher, Sharon Gerecht, aims to understand the molecular signals that cause stem cells to differentiate into blood vessels.

SourceJohns Hopkins University·DateFeb 18, 2009

Childhood chicken pox could affect oral health years later

A recent study published in General Dentistry suggests that childhood chicken pox caused by varicella zoster virus can lead to osteonecrosis of the jaw, a condition characterized by severe bone damage and tooth loss. The virus may also cause vision loss and other oral health problems if activated decades later.

SourceAcademy of General Dentistry·JournalEuropean Journal of General Dentistry·DateFeb 18, 2009
Apple iPhone 17 Pro

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

New recipe for dwarf galaxies: Start with leftover gas

Astronomers have identified a new type of dwarf galaxy, formed out of pristine gas without dark matter. Led by Johns Hopkins University, the discovery was made using the Galaxy Evolution Explorer and suggests that these galaxies may be common throughout the early universe.

SourceJohns Hopkins University·JournalNature·DateFeb 18, 2009

Could genetics improve warfarin dosing?

A large-scale study and clinical trial suggest that incorporating genetic data into warfarin prescribing can lead to more accurate ideal dosages, particularly for patients at the extremes of the dosage range. This could help minimize dangerous complications and improve treatment effectiveness and safety.

SourceNIH/National Institute of General Medical Sciences·JournalNew England Journal of Medicine·DateFeb 18, 2009

SCAN: Delivering bone disorder diagnosis, fracture healing

The new ultrasound technology, SCAN, uses non-invasive imaging to assess bone quality and predict fracture risk. It also assists in healing fractures by stimulating bone regeneration, making it a cost-effective and accessible tool for healthcare providers.

SourceNational Space Biomedical Research Institute·DateFeb 18, 2009
Celestron NexStar 8SE Computerized Telescope

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

Drug combination reduces kidney disease risk in diabetics

A combination of two antihypertensive drugs lowers the risk of kidney disease in diabetics, even among those with normal blood pressure. The study found a 21% lower rate of kidney disease events in patients receiving the combination therapy.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateFeb 18, 2009

New iPod listening study shows surprising behavior of teens

A new study by the University of Colorado at Boulder found that teenagers who express concern about hearing loss risk actually play their music louder than peers, while those with lower concerns listen at safer volumes. The study also shows teens play music louder than young adults and may inaccurately perceive volume levels.

SourceUniversity of Colorado at Boulder·DateFeb 18, 2009

Genetic information personalizes warfarin prescribing

A model predicting warfarin doses based on genetic information and clinical factors shows improved results, particularly for patients at high risk of bleeding or clotting. The study suggests personalized medicine holds promise in optimizing medication treatment.

SourceUniversity of Wisconsin-Madison·JournalNew England Journal of Medicine·DateFeb 18, 2009
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.

Gaps in colorectal cancer screening persist between whites and nonwhites

A new study finds that racial disparities in colorectal cancer screening persist, with significant gaps between white patients and those of other ethnicities, including Hispanics. Increasing screening rates among Medicare recipients have not narrowed these gaps.

SourceUniversity of California - Davis Health·JournalJournal of the American Geriatrics Society·DateFeb 18, 2009

TB treatment delays in Taiwan

A Taiwanese study found that older people and those with an Aboriginal background experienced longer diagnosis and treatment delays for tuberculosis. This delay can lead to more extensive disease, complications, and higher mortality rates.

SourceBMC (BioMed Central)·JournalBMC Public Health·DateFeb 18, 2009

Erosion rates double along portion of Alaska's coast

A new study found that coastal erosion in Alaska more than doubled from historical rates, averaging over 14 meters per year. The authors attribute this increase to declining sea ice extent, rising sea temperatures, and storm power, which may signal a shift in ocean-land interactions.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateFeb 18, 2009
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.

One-fifth of fossil-fuel emissions absorbed by threatened forests

Researchers found that tropical trees in undisturbed forests absorb 4.8 billion tonnes of CO2 emissions annually, including an unknown carbon sink in Africa. This massive carbon sink has significant implications for climate change, with the potential to buffer global warming by substantially reducing atmospheric CO2 levels.

SourceUniversity of Leeds·JournalNature·DateFeb 18, 2009

BUSM researchers find parental dementia may lead

Researchers at Boston University School of Medicine found that people whose parents have Alzheimer's disease or dementia perform worse on formal memory testing. The study also identified a strong genetic link between ApoE ε4 gene and the transmission of Alzheimer's disease risk between generations.

SourceBoston University·DateFeb 18, 2009

Sophisticated nano-structures assembled with magnets

Scientists at Duke University have created intricate nano-structures by manipulating magnetization of a liquid solution, enabling the formation of complex shapes like Saturn and flowers. The resulting structures can be fixed and used as building blocks for various applications.

SourceDuke University·JournalNature·DateFeb 18, 2009

High-fat diets inflame fat tissue around blood vessels, contribute to heart disease

A study by University of Cincinnati researchers found that high-fat diets can cause inflammation in fat tissue surrounding blood vessels, potentially leading to cardiovascular disease. The study suggests a direct link between poor dietary habits and inflammation of blood vessels, independent of weight gain or cholesterol levels.

SourceUniversity of Cincinnati·JournalCirculation Research·DateFeb 18, 2009
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.

Could genetics improve warfarin prescription?

A clinical trial is underway to test if genetics can improve warfarin prescription by optimizing each patient's dose. Using genetic information, doctors may be able to better determine optimal warfarin doses, minimizing the risk of excessive bleeding or clotting in patients at the extremes of the dosing range.

SourceNewcastle University·JournalNew England Journal of Medicine·DateFeb 18, 2009

Echoes discovered in early visual brain areas play role in working memory

Vanderbilt researchers found that early visual areas retain information previously hidden from brain studies, revealing an echo of the stimulus in these areas. They used a new technique to decode data from fMRI and found that this echo allows for accurate recall of visual patterns, including orientation.

SourceVanderbilt University·JournalNature·DateFeb 18, 2009
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.

Young adult stroke patients may be misdiagnosed in ER

A study found that 14% of young adults (16-50 years old) with stroke symptoms were misdiagnosed in ERs, leading to delayed treatment and potential paralysis and speech problems. Accurate diagnosis is critical to reduce disability and improve outcomes.

SourceAmerican Heart Association·DateFeb 18, 2009

Research increases possibilities of personalizing treatment of infant osteosarcoma

Researchers have discovered genetic variants that can help personalize treatment for infant osteosarcoma, leading to improved survival rates and reduced toxicity. The study, which analyzed data from 100 patients, found that specific genetic variants are associated with greater methotrexate toxicity and better therapeutic effects.

SourceElhuyar Fundazioa·JournalThe Journal of Pediatrics·DateFeb 18, 2009
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

SAW showcase -- poetry and artwork around science

The SAW project, led by Professor Anne Osbourn, combines scientific experimentation with art and creative writing to stimulate creativity and scientific curiosity. The initiative results in a positive view of science among young people, with stunning science images and artwork inspired by the projects.

SourceNorwich BioScience Institutes·DateFeb 18, 2009

New stars from old gas surprise astronomers

Astronomers have discovered star birth within a cloud of primordial gas, known as the Leo Ring, which lacks dark matter and heavy elements. This finding suggests that new galaxies may have formed through a distinct process, potentially providing insight into the early Universe.

SourceCarnegie Institution for Science·JournalNature·DateFeb 18, 2009

Having a parent with dementia may affect memory in midlife

A recent study found that individuals with parents diagnosed with Alzheimer's disease or dementia may experience low verbal and visual memory performances in middle age. The study suggests that the ApoEe4 gene plays a role in the transmission of Alzheimer's risk between generations.

SourceAmerican Academy of Neurology·JournalNeurology·DateFeb 18, 2009
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.

Meningitis bacteria dress up as human cells to evade our immune system

Researchers discovered how meningitis bacteria use a protein to disguise themselves as human cells, evading the immune system. This finding could lead to improved vaccines against meningitis B, which accounts for most UK cases. The bacterial protein can be modified to generate a stronger immune response.

SourceImperial College London·JournalNature·DateFeb 18, 2009

Human papillomavirus lesion identified at the dentist

A study published in General Dentistry has found that the VELscope device can detect oral HPV lesions, allowing for early detection and treatment of oral cancer. Regular dental check-ups and screenings are crucial in preventing and detecting oral cancer.

SourceAcademy of General Dentistry·JournalEuropean Journal of General Dentistry·DateFeb 18, 2009
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.

Kidney disease affects response to blood thinner

Patients with mild to severe kidney dysfunction require lower warfarin doses and closer monitoring due to increased bleeding risk. Warfarin dose is significantly affected by kidney function, even after accounting for genetics.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateFeb 18, 2009

New imaging technique reveals the atomic structure of nanocrystals

Researchers developed an imaging technique that can reveal the atomic structure of nanocrystals with a resolution of less than one angstrom. The technique combines images and diffraction patterns taken with the same electron microscope, allowing for accurate determination of atomic structures.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalNature Physics·DateFeb 18, 2009

Powering the future -- solar cells by the meter

The three-year project aims to develop cost-effective, reel-to-reel printable plastic solar cells that can be printed like money. The technology has enormous potential for the solar industry in Australia and could lead to a world-leading Australian industry in printable electronics.

SourceCSIRO Australia·DateFeb 18, 2009
Meta Quest 3 512GB

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

Diet could reduce onset of eye disease by 20 percent

Age-related Macular Degeneration (AMD) can be slowed down with a balanced diet high in micronutrients, vitamins and antioxidants. Increasing fruit and vegetable intake could add up to 20% extra time for AMD sufferers before degeneration sets in.

SourceUniversity of Liverpool·DateFeb 18, 2009

Newly discovered gene could be a prime target in the most lethal brain cancer

Scientists at Duke University Medical Center and Johns Hopkins University have identified two genes with potential as therapeutic targets for malignant glioma, a deadly class of brain tumors. IDH1 mutations were found in over 70% of astrocytomas and olidgodendrogliomas, associated with longer survival times.

SourceDuke University Medical Center·JournalNew England Journal of Medicine·DateFeb 18, 2009
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.

4 rockets launch from Poker Flat Research Range

Four NASA rockets launched from Alaska's Poker Flat Research Range, releasing glowing vapor trails to study turbulence above 50-80 miles high. The experiment, called Turbopause, aims to measure the region where winds reach their largest values.

SourceUniversity of Alaska Fairbanks·DateFeb 18, 2009

Genetic tests may improve dosing of widely used anti-clotting drug

Researchers developed a method to use genetic information to determine optimal doses of warfarin, reducing the risk of adverse effects. The study included data from 4,043 patients worldwide and found that patients on the extreme ends of the dosage range saw significant benefits.

SourceUniversity of Florida·JournalNew England Journal of Medicine·DateFeb 18, 2009

Erosion doubles along Alaska's Arctic coast

Coastal erosion in Alaska's Arctic region has more than doubled to 45 feet per year over a 5-year period. The increased erosion rates are attributed to changing arctic conditions, including declining sea ice extent, rising sea level, and increasing storm power.

SourceU.S. Geological Survey·JournalGeophysical Research Letters·DateFeb 18, 2009

Robotic therapy may reduce stroke physical disability years later

A small randomized study found that robotic therapy improved physical ability in stroke patients, with more significant gains in those with lower disability at the start of rehabilitation. The study suggests that robotic therapy may be useful in reducing physical disability years after a stroke.

SourceAmerican Heart Association·DateFeb 18, 2009
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Genetic information can improve administration of anticoagulant

A study confirms that using genetic information can more accurately estimate warfarin doses, reducing the risk of overdose or underdose. The gene-based dosing algorithm was found to be more effective than traditional clinical formulas in identifying patients at high risk of bleeding or clotting.

SourceWashU Medicine·JournalNew England Journal of Medicine·DateFeb 18, 2009

Latest issue of FIBER journal focuses on China's apparel industry

The latest issue of FIBER journal focuses on China's maturing apparel industry, highlighting its growth potential and the importance of understanding young Chinese consumers. Experts share best practices and tips for conducting business in China, as well as valuable insights into social responsibility in the industry.

SourceUniversity of Delaware·DateFeb 18, 2009

Tuning in on cellular communication in the fruit fly

A team of researchers at Worcester Polytechnic Institute has identified a new component of the bone morphogenetic protein (BMP) pathway, which is essential for proper wing development in fruit flies. The discovery of Kekkon5 reveals its role as an extracellular regulator of BMP signaling.

SourceWorcester Polytechnic Institute·JournalDevelopmental Biology·DateFeb 18, 2009

The liberating effects of losing control

A study by Tufts University psychologists found that mentally depleted individuals were more direct and authentic in conversation with black interviewers, and perceived as less prejudiced. This suggests that relinquishing power over oneself can lead to more harmonious interactions.

SourceAssociation for Psychological Science·JournalPsychological Science·DateFeb 18, 2009
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.

IODP to operate 3 drilling platforms in 2009

The Integrated Ocean Drilling Program (IODP) will conduct scientific ocean drilling operations aboard three platforms in 2009. Scheduled operations include riser drilling, riserless operations, and mission-specific operations to explore climate change, sea level change, and oceanic plateau formation.

SourceIntegrated Ocean Drilling Program Management International·DateFeb 18, 2009

Blood pressure compound may benefit brain tumor patients

Researchers found that administering losartan before, during and after radiation therapy prevents or lessens cognitive impairment in rats. The study validates a hypothesis that anti-hypertensive drugs can protect the brain from radiation-induced injury.

SourceAtrium Health Wake Forest Baptist·DateFeb 18, 2009
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.

New surgical implant tested at U-Iowa prevents total blindness

A new surgical implant called Retisert has been successfully tested at the University of Iowa to treat sympathetic ophthalmia, a rare eye condition that can lead to complete vision loss. The implant provides slow-release immunosuppression to the affected eye, reducing or eliminating the need for systemic medications.

SourceUniversity of Iowa·JournalOphthalmology·DateFeb 18, 2009

2 gene mutations linked to most common brain cancers -- and longer survival

Scientists have identified two gene mutations, IDH1 and IDH2, linked to nearly three-quarters of gliomas, a type of brain cancer. These mutations are associated with longer survival rates in patients with certain types of gliomas. Further research may lead to more precise diagnoses and treatments.

SourceJohns Hopkins Medicine·JournalNew England Journal of Medicine·DateFeb 18, 2009

Investing in personalized medicine will benefit Canada

Canada has a unique opportunity to become an international leader in personalized medicine, driven by advancements in human genome sequencing and genetic research. The country can capitalize on its strengths to provide a model for other nations.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateFeb 18, 2009