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Science News Archive February 2009


Page 8 of 24

Scientists find black gold amidst overlooked data

Researchers found black gold bubbles in sunlight reflections on the ocean's surface, revealing a new technique to detect oil seeps. This method could provide timely and cost-effective means to survey oceans for oil spills and monitor human-induced releases.

Online collaboration identifies bacteria

A new website allows scientists to collaborate on bacterial strain identification through multilocus sequence analysis. The database grows in size and utility as taxonomists add their isolates, enabling electronic taxonomy.

'Neurological work-arounds' offer hope to people with monoamine-related disorders

Researchers have identified a way for the brain to compensate for problems with neurotransmitters like serotonin and dopamine, opening up new treatment options for addiction, depression, Parkinson's disease, and schizophrenia. The discovery was made using fruit flies with a genetic mutation that disrupted monoamine neurotransmitter rel...

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.

Infection prevention falls short in Canadian long-term care facilities

A new study by Queen's University reveals that Canadian long-term care facilities are not meeting recommended standards for infection prevention and control. The findings highlight a lack of essential activities, including surveillance and control measures, resulting in increased morbidity, mortality, and financial expense.

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.

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.

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.

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.

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.

Link between unexploded munitions in oceans and cancer-causing toxins determined

New findings show that marine life closest to unexploded bombs from WWII-era vessel USS Killen have high levels of carcinogenic materials. Data gathered since 1999 indicates a significant correlation between the proximity of corals, sea urchins, and other marine species to munitions and elevated cancer rates among local residents.

Apple iPhone 17 Pro

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Fluke 87V Industrial Digital Multimeter

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Celestron NexStar 8SE Computerized Telescope

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

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.

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.

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.