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Science News Archive August 2013


Page 3 of 29

Rich or poor in gut bacteria brings new vision for obesity treatment

Researchers identified two groups of individuals distinguished by the richness of their gut microbiota, with those having a poor gut microbiome being more likely to experience obesity and related metabolic issues. The study also found that certain bacterial species may play a protective role against weight gain.

Fluke 87V Industrial Digital Multimeter

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

Jailed men express need for financial education

The study found that incarcerated men lack basic financial knowledge, with a focus on investing, self-employment, budgeting, and saving. They often prefer one-on-one instruction and have shown interest in entrepreneurship, particularly in construction and real estate.

NASA's Hubble sees a cosmic caterpillar

Astronomers observe a unique protostar, IRAS 20324+4057, shaped like a cosmic caterpillar due to intense ultraviolet radiation. The star is still collecting material from its surrounding gas envelope, which is being eroded by nearby stars.

Apple iPhone 17 Pro

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

Texas A&M biologist fights deadly gut bacteria, C. diff

A Texas A&M University biologist is working on a potential drug to combat the deadliest form of gut bacteria, C. difficile, which causes 14,000 deaths annually in America. The researcher aims to develop an inhibitor that prevents the spores from growing and causing disease.

Is war really disappearing? A new analysis suggests not

A new study by Bear Braumoeller at Ohio State University suggests that while conflict may be less common, the ability of countries to wage war has decreased over time. The analysis found no clear trend indicating a decrease in nations' willingness to go to war.

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.

NASA's Landsat revisits old flames in fire trends

The Monitoring Trends in Burn Severity project uses Landsat data to quantify large fires nationwide, providing long-term burn severity maps. Researchers investigate fire behavior changes over years using the valuable data, revealing increasing fire activity in the western US.

Why super massive black holes consume less material than expected

A team of astronomers used NASA's Chandra X-ray space telescope to solve a long-standing mystery about super massive black hole accretion rates. They found that most SMBHs swallow very little cosmic material and instead reject hot gases due to their high temperatures.

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.

Novel topological crystalline insulator shows mass appeal

Researchers successfully introduced mass into Dirac electrons, a crucial step towards understanding topological crystalline insulators. The discovery provides new insights into the electronic behavior of these materials and paves the way for novel functionalities at the nanoscale.

Poverty impairs cognitive function

Research suggests that poverty can impair cognitive functioning, leading to poor decision-making and perpetuating financial struggles. The study found that individuals with pressing financial concerns exhibit a significant drop in cognitive function, similar to a 13-point dip in IQ.

Protein predicts breast cancer prognosis

Researchers identified a protein that correlates with breast cancer aggressiveness and may predict prognosis; small molecule inhibitors could be developed as therapeutic drugs for breast cancer treatment.

SAMSUNG T9 Portable SSD 2TB

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Fires plague Portugal

Portugal's Serra da Estrela National Park was finally brought under control after 24 hours of fighting, but one firefighter killed and nine injured. The fires have destroyed over 31,000 hectares this year, according to Portugal's conservation institute.

Learning a new language alters brain development

A study by McGill University and Oxford University found that learning a second language after infancy stimulates new neural growth and connections. The research suggests that the difficulty of learning a second language later in life may be due to structural changes in the brain.

NASA data reveals mega-canyon under Greenland Ice Sheet

A massive canyon hidden under a mile of ice has been discovered in Greenland, stretching over 460 miles and reaching depths of 2,600 feet. The feature is thought to be ancient, pre-dating the current ice sheet, and plays a crucial role in transporting sub-glacial meltwater.

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.

Stanford-developed collagen patch speeds repair of damaged heart tissue in mice

Researchers developed a collagen patch that speeds up generation of new cells and blood vessels in damaged heart tissue, reducing tissue damage and improving cardiac function. The patch replaces the epicardium, the outer layer of heart tissue, allowing for growth of new tissue and improved delivery of oxygen and nutrients.

Unexpected use of former cancer drug

Researchers at Lund University have found that Zebularine, an old cancer drug, can prevent organ rejection in transplant patients. The treatment also showed promise in curing type 1 diabetes and rheumatoid arthritis by suppressing the immune system's reaction to healthy tissue.

Discovering a diamondback moth: Overlooked diversity in a global pest

A recent study using DNA barcodes identified two distinct species of diamondback moths in Australia, one of which is the well-known pest and the other a newly discovered species named Plutella australiana. The discovery highlights the complexity of this global pest and its ability to evolve resistance to control methods.

Davis Instruments Vantage Pro2 Weather Station

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Frontiers launches a new open-access journal in Energy Research

Frontiers' new journal in Energy Research will publish rigorously peer-reviewed articles on various topics related to energy systems, including nanotechnology solutions, policies, and storage. The journal aims to provide a free-to-access platform for researchers to share their findings with the scientific community.

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.

Study shows mindfulness training can help reduce teacher stress and burnout

A study led by the University of Wisconsin-Madison Waisman Center found that mindfulness training reduced teacher stress and burnout, while improving classroom organization and increasing self-compassion. The study used a Mindfulness-Based Stress Reduction (MBSR) course adapted for elementary school teachers.

Researchers develop model of 'near-optimal' genetic code

Researchers have created a model that explains the emergence of the modern genetic code, suggesting it resulted from a combination of selective forces and random chance. The study reveals how RNA signaling likely developed into the universal genetic code shared among all organisms.

Does migraine affect income or income affect migraine?

A study published in Neurology found that people with lower incomes are more likely to develop migraines, but the remission rate is the same regardless of income. Migraine sufferers in low-income groups experience more severe pain and disability.

Hidden shell middens reveal ancient human presence in Bolivian Amazon

Researchers have uncovered evidence of early Holocene hunter-gatherer settlements in the Bolivian Amazon, dating back approximately 10,400 years. The discovery of 'shell middens' reveals human presence in the region, with samples showing a mix of animal bones, freshwater snail shells, and pottery.

DJI Air 3 (RC-N2)

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Fish larvae sniff reef odor to find their way home

Research published in PLOS ONE reveals that fish larvae can smell the presence of coral reefs from far offshore and use this odor to navigate home. The study found that water temperature and current directions do not influence the orientation of larvae, but rather a proximal cue allows them to settle and find their way back.

Space laser to prove increased broadband possible

The LLCD experiment aims to validate and build confidence in laser communications, allowing for 3-D High Definition video transmissions in deep space. The technology has incredible application possibilities, enabling the transmission of hundreds of millions of bits of data per second from the moon to Earth.

CalDigit TS4 Thunderbolt 4 Dock

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Oldest solar twin identified

Astronomers have discovered an ancient solar twin that is 8.2 billion years old, providing insights into the Sun's life-giving properties and lithium content. The star, HIP 102152, has low levels of lithium, supporting the theory that stars destroy their lithium as they age.

Woodland salamanders indicators of forest ecosystem recovery

Researchers found that woodland salamander populations closely track forest stand growth and development, making them a viable indicator of ecosystem recovery. The study's findings suggest that healthy forests support a wide range of species, including rare and native wildlife, and are crucial carbon sinks.

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.

Butterfly wings + carbon nanotubes = new 'nanobiocomposite' material

Researchers have developed a nanobiocomposite material by combining the natural properties of Morpho butterfly wings with carbon nanotubes, showing promise for wearable electronic devices and sustainable energy applications. The new hybrid material exhibits high electrical conductivity and self-cleaning capabilities.

School-age drinking increases breast cancer risk

Research from Washington University School of Medicine links increased breast cancer risk to drinking between early adolescence and first full-term pregnancy. Drinking daily can increase risk by 13% if averaged during this period, according to the study.

UC Davis team 'spikes' stem cells to generate myelin

Researchers at UC Davis have successfully generated oligodendrocytes with spiking properties, allowing them to produce myelin and mature into functional brain cells. The enhanced cells showed superior regenerative capacity and produced thicker, longer myelin sheaths than natural cells.

Ultracold big bang experiment successfully simulates evolution of early universe

Physicists have successfully simulated the evolution of the early universe using ultracold cesium atoms. The experiment replicated patterns resembling the cosmic microwave background radiation, shedding light on the universe's origins. By studying these patterns, researchers can better understand the universe's structure and properties.

Wildfires projected to worsen with climate change

A Harvard University study projects that wildfires in the western United States will be three weeks longer, up to twice as smoky, and burn a wider area by 2050. Climate change is expected to exacerbate fire season due to warmer temperatures.

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.

A major cause of age-related memory loss identified

A study at Columbia University Irving Medical Center identifies RbAp48 as a significant contributor to age-related memory loss, which can be reversed. The researchers found that RbAp48 plays an active role in the process and propose it as a target for therapeutic intervention.

Biodiversity in Ontario's Great Lakes region may be greater than we thought

A study published in Botany reveals that the genetic diversity of the Branched Bartonia plant in Ontario is greater than initially thought. The research found that the Muskoka population is genetically distinct from a core population in New York State, highlighting the importance of considering genetic novelty in conservation policies.

Producing hydrogen from water with carbon/charcoal powder

Researchers have successfully produced hydrogen from water using high-grade charcoal and other forms of carbon, paving the way for an alternative, cost-effective method. This breakthrough could potentially replace traditional methods that rely on expensive catalysts or electric current.

Molecular motors: Power much less than expected?

Researchers at the Institute of Physical Chemistry found that molecular motors generate only 3.5•10^-28 joule per rotation, a value ten million times lower than thermal motion energy. Despite low individual power, collective rotations can achieve higher energies, making it possible for these molecules to find practical applications.

Meta Quest 3 512GB

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Migraine may permanently change brain structure

A study found that migraine can cause long-lasting changes in brain structure, including increased risk of brain lesions, white matter abnormalities, and altered brain volume. Migraine with aura is associated with a higher risk of these changes compared to those without aura.

WPI receives $1.94 million NIH award for research on cardiac regeneration

A biomedical research team at Worcester Polytechnic Institute will use a new microthread technology to deliver adult stem cells into damaged hearts, aiming to promote muscle regeneration and improve heart function. The five-year project aims to advance cell therapies for people suffering from heart disease.