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Science News Archive November 2014 - Page 22


Page 22 of 31

Too many people, not enough water: Now and 2,700 years ago

Researchers connect ancient clay tablet data to climate records, suggesting that drought and overpopulation weakened the empire's economy and destabilized its political system. The study draws parallels between the Assyrian Empire's collapse and contemporary issues in the region, highlighting the importance of considering long-term sus...

SourceUniversity of California - San Diego·JournalClimatic Change·DateNov 10, 2014

Cervical component protects against infection and preterm birth in mice

A new study has found that the extracellular matrix component hyaluronan (HA) in the cervix provides protection against infection, which can lead to preterm birth. Mice unable to produce HA had abnormal cervical structures and higher preterm birth rates in response to infection.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 10, 2014
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.

Microbot muscles: Chains of particles assemble and flex

University of Michigan researchers demonstrate how chains of self-assembling particles can form and extend when exposed to an alternating electric field. This innovation could enable electronics that rewire on demand and pave the way for development of tiny, mobile robots with potential applications in medicine and manufacturing.

SourceUniversity of Michigan·JournalNature Materials·DateNov 10, 2014

Mapping reveals targets for preserving tropical carbon stocks

A new high-resolution mapping strategy has identified opportunities to preserve tropical carbon stocks in the fight against climate change. The approach prioritizes carbon conservation efforts throughout tropical countries and provides detailed information on landscape characteristics.

SourceCarnegie Institution for Science·JournalProceedings of the National Academy of Sciences·DateNov 10, 2014

Obesity plays major role in triggering autoimmune diseases

A recent Tel Aviv University study found that obesity leads to a breakdown of the body's protective self-tolerance, creating an environment for autoimmune diseases. The research also highlights the importance of vitamin D supplements in alleviating symptoms and improving prognosis for patients with multiple sclerosis.

SourceAmerican Friends of Tel Aviv University·JournalAutoimmunity Reviews·DateNov 10, 2014
Meta Quest 3 512GB

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

Noise in a microwave amplifier is limited by quantum particles of heat

Researchers at Chalmers University of Technology have demonstrated that noise in microwave amplifiers is limited by self-heating at very low temperatures. The study, published in Nature Materials, shows that phonon radiation in the transistor is responsible for limiting noise.

SourceChalmers University of Technology·JournalNature Materials·DateNov 10, 2014

In developing countries, child-mortality rates fell most among poorest families

A new study found that child-mortality rates declined the fastest among the poorest families in developing countries, resulting in a narrowing gap between wealth groups. The study also identified four factors contributing to this convergence: government effectiveness, rule of law, corruption control, and regulatory quality.

SourceStanford Medicine·JournalPEDIATRICS·DateNov 10, 2014

Playing action video games can boost learning

A new study reveals that playing action video games boosts learning capabilities by fostering better templates in the brain. Action gamers excel at tasks due to their improved ability to build and fine-tune models of the world, leading to accelerated learning curves and lasting effects.

SourceUniversity of Rochester·JournalProceedings of the National Academy of Sciences·DateNov 10, 2014
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.

For enterics, adaptability could be an Achilles heel

Researchers from RIKEN found that a subtle change in the Lon enzyme allows bacteria to quickly adapt between low-oxygen gut environments and high-oxygen outside conditions. This discovery could lead to new therapeutic targets for enteric diseases.

SourceRIKEN·JournalNature Chemical Biology·DateNov 10, 2014

Archaeologists discover remains of Ice Age infants in Alaska

The discovery of two Ice Age infant remains at the Upward Sun River site in Alaska offers a rare glimpse into the lives of early human societies. The burials, dated to around 11,500 years ago, include grave offerings such as hafted compound weapons and provide insights into funeral practices and social organization.

SourceUniversity of Alaska Fairbanks·JournalProceedings of the National Academy of Sciences·DateNov 10, 2014
Apple iPhone 17 Pro

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

Termite of the sea's wood destruction strategy revealed

Researchers have discovered a novel enzyme production strategy in shipworms that breaks down wood, shedding light on the potential for these bivalves to produce biofuels. The study's findings could provide valuable insights and tools for biomass-based industries.

SourceDOE/Joint Genome Institute·JournalProceedings of the National Academy of Sciences·DateNov 10, 2014

A billion holes can make a battery

Researchers at the University of Maryland have invented a single structure that combines all components of a battery, enabling miniaturization of energy storage. The tiny battery can be fully charged in 12 minutes and recharged thousands of times, making it a promising innovation for future devices.

SourceUniversity of Maryland·JournalNature Nanotechnology·DateNov 10, 2014

Chicago Biomedical Consortium announces $3 million Infrastructure Initiative

The Chicago Biomedical Consortium is launching a $3 million Infrastructure Initiative to promote investment in high-impact scientific equipment at its member universities. The initiative aims to make modern instrumentation available to the CBC research community, enabling them to stay at the forefront of biomedical discovery.

SourceUniversity of Chicago Medical Center·DateNov 10, 2014

New effective, safe and cheap treatment strategy for rheumatoid arthritis

A new drug combination for rheumatoid arthritis treats the disease just as well as other intensive treatment strategies but with less medication and fewer side effects. The COBRA Slim strategy, which calls for the least amount of medication, had half as many side effects as the two other strategies and was just as effective.

SourceKU Leuven·JournalAnnals of the Rheumatic Diseases·DateNov 10, 2014
Fluke 87V Industrial Digital Multimeter

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

Is your relationship moving toward marriage? If it isn't, you probably can't admit it

A University of Illinois study found that couples in trouble with their relationship tend to distort their memories, whereas those moving toward marriage remember their journey accurately. This distortion helps them cope with the psychological implications of staying in a stagnant relationship.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalPersonal Relationships·DateNov 10, 2014

U-M students complete Detroit's first comprehensive greenhouse gas inventory

The University of Michigan student researchers compiled a comprehensive citywide greenhouse gas inventory for Detroit, highlighting key emission sources and areas for improvement. The report shows that energy use in buildings accounts for nearly two-thirds of the city's emissions, with exhaust from cars contributing to about 30%.

SourceUniversity of Michigan·DateNov 10, 2014

Researcher sees laptop-cooling technology as way to less-thirsty power plants

A researcher at the University of Kansas is exploring a new way to cool power plants using laptop-cooling technology, which could save freshwater and reduce costs. The approach involves using closed thermosyphons, which are commonly used in laptop computers to keep them cool, but have not been scaled up for use in power generation.

SourceUniversity of Kansas·DateNov 10, 2014

Half of premature colorectal cancer deaths due to socioeconomic inequality

A new study by American Cancer Society researchers found that more preventable deaths from colorectal cancer occur in southern states due to socioeconomic inequalities. The report highlights the importance of addressing disparities in education, income, and access to screening and treatment services.

SourceAmerican Cancer Society·JournalJournal of Clinical Oncology·DateNov 10, 2014
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.

The brain's 'inner GPS' gets dismantled

Researchers at University of California, San Diego, have removed the brain area responsible for spatial navigation in rats, showing that other memory abilities remain intact. The study provides insights into Alzheimer's disease and stroke effects on the brain's navigational system.

SourceUniversity of California - San Diego·JournalCell Reports·DateNov 10, 2014
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.

Statins reverse learning disabilities caused by genetic disorder

Researchers discovered that statins can reverse the learning deficits caused by Noonan syndrome, a genetic disorder affecting 1 in 2,000 people. The treatment works by reducing Ras activity, allowing brain cells to communicate properly and enabling normal learning to take place.

SourceUniversity of California - Los Angeles Health Sciences·JournalNature Neuroscience·DateNov 10, 2014

Hospital workers wash hands less frequently toward end of shift, study finds

Researchers found that hospital workers washed their hands less frequently towards the end of their shifts, with compliance rates dropping by an average of 8.7 percentage points. This decline was attributed to mental fatigue, leading to a decrease in self-regulatory capacity and prioritization of tasks.

SourceAmerican Psychological Association·JournalJournal of Applied Psychology·DateNov 10, 2014

A greasy way to take better protein snapshots

Researchers at RIKEN developed a new technique to analyze protein structures by suspending crystals in a greasy substance, enabling the use of smaller samples and faster data collection. This breakthrough could lead to improved understanding of dangerous proteins, such as those containing mercury.

SourceRIKEN·JournalNature Methods·DateNov 10, 2014

Breakthrough shows how the 'termites of the sea' digest wood

A team of researchers has discovered a novel digestive strategy in shipworms, which could be a game-changer for the industrial production of clean biofuels. The study found that shipworms use enzymes made by symbiotic bacteria stored in their gills to break down wood for nutrition.

SourceNortheastern University·JournalProceedings of the National Academy of Sciences·DateNov 10, 2014
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.

Lighter, cheaper radio wave device could transform telecommunications

Researchers at the University of Texas at Austin have created a radically smaller, more efficient radio wave circulator that could double useful bandwidth in wireless communications. The new circulator enables full-duplex functionality, allowing devices to transmit and receive signals on the same frequency band simultaneously.

SourceUniversity of Texas at Austin·JournalNature Physics·DateNov 10, 2014

Re-learning how to read a genome

A recent study suggests that genes and regulatory elements share a common architecture in their reading processes, with the main differences occurring after the initial step. This unified model could provide insight into how genes evolve and shed light on the evolutionary origins of new genes.

SourceCold Spring Harbor Laboratory·JournalNature Genetics·DateNov 10, 2014

Heat transfer sets the noise floor for ultrasensitive electronics

A team of engineers and scientists has identified a source of electronic noise that could impact the functioning of instruments operating at very low temperatures. At around 20 kelvins, phonon modes become deactivated, allowing high-energy phonons to carry away heat and causing devices to heat up.

SourceCalifornia Institute of Technology·JournalNature Materials·DateNov 10, 2014

We are not alone

A new UCSB study reveals that a fungal pathogen in amphibians disrupts the skin microbiome, leading to dramatic changes in bacterial communities. The research has significant implications for understanding infectious disease dynamics and developing responses to diseases causing amphibian extinction.

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateNov 10, 2014

IU biologists collaborate to refine climate change modeling tools

A new climate model simulates global carbon cycle interactions between plants and microbes, revealing a loss of soil carbon stocks in temperate regions due to increased microbial activity. The CORPSE model predicts gains in soil carbon capture in boreal regions and tropical South America.

SourceIndiana University·JournalNature Climate Change·DateNov 10, 2014
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.

'Darting' mice may hold clues to ADHD, autism and bipolar disorder

A transgenic mouse with a rare human genetic variation in the dopamine transporter protein may lead to improvements in ADHD, autism and bipolar disorder diagnosis and treatment. The mice exhibit unusual "darting behavior," which could be related to impulsivity and abnormal dopamine release.

SourceVanderbilt University Medical Center·JournalProceedings of the National Academy of Sciences·DateNov 10, 2014

Anxiety can damage brain

A new study found that anxiety symptoms in individuals with mild cognitive impairment (MCI) increase the risk of a faster decline in cognitive functions and accelerate brain damage, independent of depression. MCI patients with moderate or severe anxiety had a 33%, 78%, and 135% increased risk of Alzheimer's, respectively.

SourceBaycrest Centre for Geriatric Care·JournalAmerican Journal of Geriatric Psychiatry·DateNov 10, 2014

Study: Volunteer advocacy program benefits the incapacitated with no family or friends

A study of the volunteer advocate program found that it provided comprehensive care to incapacitated patients, including end-of-life decisions and Medicaid applications. The program's success demonstrates a viable alternative to overwhelmed state agencies and provides hope for vulnerable individuals without surrogates.

SourceIndiana University·JournalJournal of the American Geriatrics Society·DateNov 10, 2014
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.

USC stem cell researcher Lori O'Brien receives the first Broad Fellowship

Lori O'Brien, a USC postdoctoral research associate, has received the first Broad Fellowship to investigate how epigenetic regulation affects kidney stem cells. The fellowship will support her research on Phf19, an epigenetic regulator that encourages embryonic stem cell self-renewal.

SourceUniversity of Southern California - Health Sciences·DateNov 10, 2014

Researchers discover new target for blood cancer treatment

Scientists have identified a new therapeutic target, Mpl, which could lead to the development of novel treatments for myeloproliferative neoplasms (MPNs). The study found that reducing the expression of Mpl in laboratory models can prevent the development of mutant JAK2 disease.

SourceUniversity of York·JournalBlood·DateNov 10, 2014

Sweet music or sour notes? The test will tell

The Seattle Singing Accuracy Protocol (SSAP) measures how well people handle the translation from listening to singing. The program assesses individual singers' ability to match specific tones and melodies, providing a tool for early music education programs and researchers studying musical ability.

SourceUniversity at Buffalo·JournalMusic Perception An Interdisciplinary Journal·DateNov 10, 2014
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.

How cartilage cells sense forceful injury

Cartilage cells have multiple sensory systems that respond to mechanical strain, leading to cell death. Researchers found two ion channels, Piezo1 and Piezo2, that are critical for sensing forceful injury, and a substance from tarantula venom extract can block these channels, preventing cell death.

SourceDuke University·JournalProceedings of the National Academy of Sciences·DateNov 10, 2014

Astronomers dissect the aftermath of a supernova

Researchers have used radio telescopes in Australia and Chile to observe the remnant of Supernova 1987A, providing insights into the explosion's aftermath. The team has also developed a three-dimensional simulation that reproduces observed features, including the persistent one-sidedness in radio images.

SourceInternational Centre for Radio Astronomy Research·DateNov 10, 2014

Good vibrations give electrons excitations that rock an insulator to go metallic

Researchers at Oak Ridge National Laboratory quantify thermodynamic forces driving metal-insulator transition in vanadium dioxide, finding phonons and atomic vibrations control phase stability. The discovery has implications for multifunctional materials, including colossal magnetoresistors, superconductors, and ferroelectrics.

SourceDOE/Oak Ridge National Laboratory·JournalNature·DateNov 10, 2014
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.

A new species of nocturnal gecko from northern Madagascar

A new species of nocturnal gecko, Paroedura hordiesi, has been discovered in northern Madagascar with a unique camouflage pattern to blend into its environment. The species is classified as Critically Endangered due to habitat loss and degradation.

SourcePensoft Publishers·JournalZoosystematics and Evolution·DateNov 10, 2014

Low levels of the DHEA prohormone predict coronary heart disease

Researchers found that elderly men with low DHEA levels were at a greater risk of developing coronary heart disease events over a five-year period. The study suggests that high DHEA levels may be a biomarker of good health in elderly men.

SourceUniversity of Gothenburg·JournalJournal of the American College of Cardiology·DateNov 10, 2014

Overall risk of birth defects appears low for women taking antiretrovirals during early pregnancy

A new study led by Harvard School of Public Health found that the use of antiretroviral medications during early pregnancy does not significantly increase the risk of birth defects in infants. However, one specific ARV drug, atazanavir, was associated with a higher risk of birth defects, particularly musculoskeletal and skin anomalies.

SourceHarvard T.H. Chan School of Public Health·JournalJAMA Pediatrics·DateNov 10, 2014
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.

Queensland research helping reduce road fatalities in China

A Queensland University of Technology study found that over 70% of people in two Chinese cities are unaware of the blood alcohol limits for driving. The new laws have led to a drop in alcohol-related crashes, but limited awareness may contribute to offending rates.

SourceQueensland University of Technology·JournalThe International Journal of Alcohol and Drug Research·DateNov 10, 2014

Of gods and men

A new study from NESCent suggests that societies with less access to food and water are more likely to believe in moralizing, high gods. Belief in these types of deities is strongly associated with political complexity and the practice of animal husbandry.

SourceNational Evolutionary Synthesis Center (NESCent)·JournalProceedings of the National Academy of Sciences·DateNov 10, 2014

Baby photos of a scaled-up solar system

Researchers have discovered two young stars with analogues to our solar system's asteroid and Kuiper belts, surrounded by a large dust halo. These findings suggest a common model for planetary formation and evolution, providing insight into the early stages of star formation and planet creation.

SourceUniversity of Arizona·DateNov 10, 2014

New materials yield record efficiency polymer solar cells

Researchers have found that temperature-controlled aggregation in new semi-conducting polymers enables high-efficiency organic solar cells with efficiencies up to 10.8%, paving the way for mass production and a commercially viable alternative source of energy.

SourceNorth Carolina State University·JournalNature Communications·DateNov 10, 2014
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.