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Science News Archive August 2011


Page 6 of 27

Sensor chip for monitoring tumors

A team of medical engineers at TUM has developed a sensor chip that measures oxygen levels in tumors and transmits data wirelessly to doctors. This technology aims to make cancer therapies more targeted and less aggressive for patients.

Common antibiotic helps lethal lung disease

A common antibiotic has been found to help reduce severe wheezing and acute symptoms of chronic obstructive pulmonary disease (COPD) in a large multicenter clinical trial. Patients who received the antibiotic experienced a 27% reduction in acute flare-ups compared to those who received a placebo.

Rare immune cell is asset and liability in fighting infection

Scientists at WashU Medicine reveal that CD8 alpha+ dendritic cells (CD8a+ DCs) help fight infections, but can also be hijacked by bacteria like Listeria to cause harm. The trait that makes these cells both an asset and a liability is the way they alert other immune cells.

Apple iPhone 17 Pro

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Degrading proteins to divide cells

Researchers have discovered a key mechanism controlling the segregation of genetic material from parent to daughter cells. The study found that degradation of CenH3 protein is essential for limiting its presence at centromeres and that this degradation is mediated by protein partner Ppa.

Protein in the urine spells kidney failure for African-Americans

A new study found that African Americans are more likely to develop kidney failure due to high levels of protein in the urine. The study analyzed data from 27,911 individuals and found that African Americans were four times more likely to develop kidney failure than whites.

Coronary heart disease due to genes, not family lifestyle

A Swedish study published in American Heart Journal found that genetic factors are the primary cause of coronary heart disease, rather than family lifestyle. Adopted individuals with at least one biological parent having coronary heart disease had a 40-60% higher risk of developing the condition.

When it comes to pursuing your goals, let you unconscious be your guide

A University of Alberta study finds that unconscious feelings about objects in the environment influence long-term goal pursuit. The unconscious continues to positively value objects related to goals, even after success or failure, making it a key motivator. Participants reacted neutrally to objects after a failure, indicating a shift ...

AmScope B120C-5M Compound Microscope

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Children with congenital heart disease at risk from harmful toxins

Research by Imperial College London found that babies and toddlers with congenital heart disease have higher levels of toxins in their blood after surgery, leading to longer intensive care stays. The study suggests a link between gut bacteria, bacterial fragments called endotoxins, and poor clinical outcomes.

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.

Where the tongue hits its limits

Linguistic researcher Marianne Pouplier aims to clarify why certain sound patterns are rarely encountered in languages, proposing an empirical approach using ultrasound imaging and perceptual tests.

Uninsured trauma patients are more likely to use the ED for follow-up care

A new Johns Hopkins study reveals that uninsured trauma patients are 60% more likely to seek follow-up care in the emergency department (ED) for minor medical needs. This is despite having access to free follow-up appointments. Patients living in poor neighborhoods and those with Medicaid or Medicare are also more likely to use the ED.

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.

Breakthrough in genetics of fibroids

Researchers at the University of Helsinki identified specific mutations in the MED12 gene as the cause of fibroid tumorigenesis in 70% of studied tumors. This discovery provides hope for targeted therapies and a deeper understanding of fibroid development.

Yale researchers use genetic code to engineer a living protein

Researchers at Yale University have successfully re-engineered the genetic code of bacteria to synthesize special forms of proteins that can mimic natural or disease states. This new technology enables the production of human proteins with their naturally occurring phosphorylation sites, a crucial step in understanding disease processes.

UC Davis awarded 5 therapy development stem cell grants

The California Institute for Regenerative Medicine approved five UC Davis Health System teams with research planning grants worth up to $20 million each. These grants aim to develop human clinical trials for treatments of Huntington's disease, critical limb ischemia, airway disease, HIV/AIDS and osteoporosis.

SAMSUNG T9 Portable SSD 2TB

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New sensors streamline detection of estrogenic compounds

Researchers have engineered new sensors that can detect estrogenic compounds in human cells, which is crucial for understanding the potential health risks associated with these substances. The sensors, developed by a team led by Huimin Zhao, were found to reliably detect estrogenic compounds within hours, even at low levels.

4 decades of the rising obesity epidemic

The global obesity epidemic has grown over four decades, with high-income countries experiencing a rise in the 1970s and 80s. Low-income and middle-income countries are now also affected, particularly women from wealthy urban environments. The authors argue that policy-led solutions, such as government regulations and healthy public se...

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

New depiction of light could boost telecommunications channels

Physicists at City College of New York develop a new way to map spiraling light, which can harness untapped data capacity in optical fibers. The Higher Order Poincaré Sphere model reduces complex light patterns to single equations, enabling novel physics and engineering efforts.

A lifetime of physical activity yields measurable benefits as we age

A new study found that cumulative benefits of physical activity across adulthood are associated with improved midlife physical performance and strength. Leisure time physical activity is crucial for maintaining physical performance and muscle strength in older adults, promoting functional health and quality of life.

What determines a company's performance? The shape of the CEO's face!

A study by Elaine M. Wong and colleagues found that CEOs with wider faces relative to their face height had significantly better firm financial performance. However, the effect was mitigated when top management teams took a simplistic view of the world. Companies where managers saw complexity, the CEO's face shape was less important.

Tackling the obesity epidemic: governments must lead

The Lancet Obesity Series identifies effective policies to reduce obesity, including taxes on unhealthy food and restrictions on TV advertising. Governments are urged to prioritize prevention programs and monitoring to tackle this complex and intractable problem.

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.

Clinical study shows young brains lack the wisdom of their elders

A study at the University Geriatrics Institute of Montreal found that older brains are wiser than young ones, allowing for comparable performance in certain tasks. The researchers discovered that older adults' brains learn to better allocate resources and make more adjustments only when necessary, resulting in improved cognitive function.

A math-based model for deep-water oil drilling

A new math-based model has been developed to predict pressure profiles, liquid/gas volumes, and flow rates in deep-water wells. The model aims to mitigate the risk of blowouts and gas kicks, which can occur when the pressure applied to balance hydrocarbon pressure is not sufficient.

New imaging method sheds light on cell growth

Researchers have developed a new imaging method, spatial light interference microscopy (SLIM), that can measure cell mass with high accuracy. SLIM offers insights into the debated problem of whether cells grow at a constant rate or exponentially.

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.

Researcher receives $1.1 million to study lupus

A Cleveland Clinic researcher has received a $1.1 million grant to investigate why females are disproportionately affected by lupus. The study will explore the role of immunosuppressive cells in the development of the disease and its impact on males.

Scientists receive grant to develop new DNA sequencing method

Researchers at the University of Southampton are developing a novel device to directly sequence single DNA strands, aiming to improve genome analysis. The new method could provide faster and cheaper DNA sequencing, eliminating complex biochemical processes.

Uncovering the spread of deadly cancer

Researchers have imaged individual cancer cells and their routes as they spread in a mouse model of glioblastoma multiforme. The novel cryo-imaging technique provides unprecedented insights into how tumor cells invade and disperse.

Fluke 87V Industrial Digital Multimeter

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

Protein linked to Parkinson's disease may regulate fat metabolism

Researchers have found that Parkin, a protein linked to early-onset Parkinson's disease, regulates how cells take up and process dietary fats. This discovery suggests that defective Parkin may contribute to the development of some cases by changing fat levels in the body.

Plants could pave the way for new ovarian cancer treatments

Scientists at the University of Strathclyde have developed a program to test plant extracts for their ability to stop ovarian cancer cells from growing. Initial tests show promising results, with several plant extracts killing tumor samples taken from cancer patients.

Fossil discovery represents new milestone in early mammal evolution

A well-preserved fossil of a shrew-like mammal discovered in northeast China provides new information about the earliest ancestors of placental mammals. The discovery, dated to 160 million years ago, fills an important gap in the fossil record and helps to calibrate modern DNA-based methods of dating evolution.

Celestron NexStar 8SE Computerized Telescope

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

Berkeley scientists discover an 'instant cosmic classic' supernova

Astronomers caught the PTF 11kly supernova within hours of its explosion, observing it with multiple telescopes and making it one of the most-studied supernovae in history. The early detection allows researchers to study the outer layers of the supernova and gain new insights into its origin.

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.

Making tomorrow's bioenergy yeasts strong

USDA scientists have developed a new biorefinery yeast that can ferment plant sugars into cellulosic ethanol despite the presence of toxic compounds. The yeast, Saccharomyces cerevisiae strain NRRL Y-50049, has shown remarkable tolerance to furfural and HMF, two compounds that inhibit yeast growth and reduce ethanol yields.

Workplace stress a growing health hazard

A study by Concordia University economists found that workers in high-stress jobs visit doctors more often, with a 26% increase in healthcare utilization. The study also estimated that workplace stress costs US companies $68 billion annually and reduces productivity by 10%.

Could a tumor suppressor also fight obesity?

Scientists at Thomas Jefferson University found that silencing the hormone receptor GCC affects appetite in mice, inducing obesity, while mice expressing the receptor know when to stop eating. This new neural-gut axis provides a potential therapeutic target for controlling appetite and obesity.

A planet made of diamond

Astronomers have detected a planet orbiting a rapidly spinning pulsar, dubbed PSR J1719-1438. The discovery suggests that the planet is composed primarily of carbon and oxygen, likely forming a diamond-like material due to its high density.

'Hidden' differences of chromosome organization become visible

Researchers analyzed molecular markers in three Italian pine vole species, revealing 'hidden' chromosome variations that distinguish them from one another. These findings provide insights into the evolution of this rodent group and may improve their taxonomy.

Meta Quest 3 512GB

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Temporary ER staff poses increased safety risk to patients

A Johns Hopkins study suggests that temporary emergency department staff are more likely to be involved in medication errors that harm patients. The research found that temporary workers' unfamiliarity with hospital systems, protocols, and procedures increases the risk of serious medical errors.

Notre Dame astrophysicists identify missing fuel for galactic star formation

A new study by Nicolas Lehner and Christopher Howk reveals that massive clouds of ionized gas in the Milky Way's halo are a reservoir of fuel for galactic star formation. The researchers measured the distances to these clouds using the Cosmic Origins Spectrograph on the Hubble Space Telescope, confirming models that predicted gas falli...

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.