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Science News Archive April 2014 - Page 15


Page 15 of 32

Ancient sea-levels give new clues on ice ages

Researchers have developed a new way to determine sea-level changes and deep-sea temperature variability over the past 5.3 million years. The findings provide crucial new information on how ice ages came about, and could help determine the relationship between carbon dioxide levels, global temperatures, and sea levels.

SourceAustralian National University·JournalNature·DateApr 16, 2014

Simplicity is key to co-operative robots

Researchers have created a system of extremely simple robots that can cluster together without requiring complex computation. This development enables the creation of large numbers of robots to perform tasks collectively, with potential applications in precision farming and healthcare technologies. The robots use minimal information an...

SourceUniversity of Sheffield·JournalThe International Journal of Robotics Research·DateApr 16, 2014
Apple iPhone 17 Pro

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

Mutant protein in muscle linked to neuromuscular disorder

Researchers at University of California, San Diego School of Medicine discover mutant protein levels in muscle cells are involved in SBMA, suggesting an alternative treatment avenue. Antisense oligonucleotides suppress mutant protein toxicity in mice, improving symptoms and survival.

SourceUniversity of California - San Diego·JournalNeuron·DateApr 16, 2014

Stanford scientists develop 'playbook' for reverse engineering tissue

Researchers at Stanford University have developed a technique to study the genetic activity of individual cells during embryonic development. By analyzing the genes active in lung cells at different stages, they revealed how specific cell types are formed and gained insights into the mechanisms of alveolar cell differentiation.

SourceStanford Medicine·JournalNature·DateApr 16, 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.

Researchers: Obesity can amplify bone and muscle loss

Researchers have identified a new syndrome called osteosarcopenic obesity, which combines the deterioration of bone density and muscle mass with obesity. This can lead to a higher risk of falls and breaking bones, particularly in older women.

SourceFlorida State University·JournalAgeing Research Reviews·DateApr 16, 2014

Ant colonies help evacuees in disaster zones

Researchers have developed a navigation map system based on ant colony behavior to aid evacuees in disaster zones. The system utilizes smartphones as networked sensors to provide real-time updates, enabling users to navigate safely through damaged areas.

SourceInderscience Publishers·JournalInternational Journal of Knowledge and Web Intelligence·DateApr 16, 2014

Earliest ancestor of land herbivores discovered

The discovery of Eocasea martini reveals how carnivores gave rise to terrestrial herbivores for the first time on land. This 300-million-year-old fossil shows that herbivory arose independently at least five times, including twice in reptiles, and led to a significant shift in early ecosystems.

SourceUniversity of Toronto·JournalPLOS ONE·DateApr 16, 2014
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.

At the origin of cell division

Physicists Luca Giomi and Antonio DeSimone simulated the spontaneous emergence of cell motility and division in artificial cells using a simplified model. They found that by controlling one physical parameter, they could reproduce similar effects observed in experimental observations.

SourceInternational School of Advanced Studies (SISSA)·JournalPhysical Review Letters·DateApr 16, 2014

Scientists find new way to fight malaria drug resistance

Scientists have discovered a way to combat malaria drug resistance by administering chloroquine twice daily. Researchers found that the parasite protein causing resistance has an Achilles' heel, rendering it vulnerable to repeated doses of the medication.

SourceAustralian National University·JournalProceedings of the National Academy of Sciences·DateApr 16, 2014

Recycling industrial waste water

Scientists at the University of Cologne have discovered a new method to produce hydrogen from water and formaldehyde. The approach can be used to break down contaminants in industrial waste water while generating hydrogen, reclaiming an important raw material.

SourceUniversity of Cologne·JournalNature Communications·DateApr 16, 2014

Progress in understanding immune response in severe schistosomiasis

Researchers at Tufts University have discovered a mechanism linked to the development of severe schistosomiasis, a disease caused by parasitic worms. The innate cell receptor CD209a controls the magnitude of disease, with mice expressing high levels of CD209a developing severe inflammation.

SourceTufts University, Health Sciences Campus·JournalThe Journal of Immunology·DateApr 16, 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.

Scientists capture ultrafast snapshots of light-driven superconductivity

Researchers used x-ray pulses to trigger superconductivity and reveal the rapid disappearance of 'charge stripes' that hindered it. The findings provide new insights into room-temperature superconductivity and its potential applications in electronics and computation.

SourceDOE/Brookhaven National Laboratory·JournalPhysical Review Letters·DateApr 16, 2014

Chimpanzees prefer firm, stable beds

Researchers found that chimpanzees select tree branches with specific physical properties, such as stiffness and leaf surface area, to build comfortable and safe nests. Ugandan Ironwood was the preferred choice due to its firmness and resilience.

SourcePLOS·JournalPLOS ONE·DateApr 16, 2014

Sperm meets egg: Protein essential for fertilization discovered

Scientists have identified a single protein, Juno, that pairs with Izumo on the surface of the egg to initiate fertilization. The discovery may lead to improved fertility treatments and new contraceptives by understanding the essential interaction between sperm and egg, which is crucial for mammalian life.

SourceWellcome Trust Sanger Institute·JournalNature·DateApr 16, 2014

The Lancet: Changing where a baby is held immediately after birth could lead to improved uptake of procedure that reduces infant iron deficiency

Researchers found that holding babies on their mother's abdomen or chest immediately after birth does not compromise delayed cord clamping. This could lead to improved uptake and reduced risk of infant iron deficiency. The study suggests a more comfortable and bonding-friendly approach for hospitals.

SourceThe Lancet·JournalThe Lancet·DateApr 16, 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.

Ancient shark fossil reveals new insights into jaw evolution

A 325-million-year-old shark fossil has provided new insights into the evolution of jaws in vertebrates, including humans. The study suggests that living sharks are more advanced than previously thought, with internal structures similar to those found in ancient bony fishes.

SourceAmerican Museum of Natural History·JournalNature·DateApr 16, 2014

Synapses -- stability in transformation

Researchers found that synapse components grow in a coordinated way to maintain stability, essential for long-term memories. This understanding sheds light on how synapses can remain stable despite the need for regular molecular replacement.

SourceMax-Planck-Gesellschaft·JournalNeuron·DateApr 16, 2014

Two new species of yellow-shouldered bats endemic to the Neotropics

Two new species of yellow-shouldered bats, Sturnira bakeri and Sturnira burtonlimi, have been identified in western Ecuador and Costa Rica. The discovery expands the genus Sturnira to 22 described species, highlighting the high species richness in the Neotropical bat family Phyllostomidae.

SourcePensoft Publishers·JournalZooKeys·DateApr 16, 2014

Research uncovers DNA looping damage tied to HPV cancer

The study found that HPV disrupts host-cell genes and chromosomes at sites of viral insertion, leading to overexpression or disruption of cancer-causing genes. This damage promotes the development of cancer by increasing the expression of viral E6 and E7 proteins.

SourceOhio Supercomputer Center·JournalGenome Research·DateApr 16, 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.

New type of barcode could make counterfeiters' lives more difficult

Scientists have developed a new type of inexpensive barcode that can be added to documents or currency to foil attempts at making forgeries. The barcodes are made from lanthanide-doped upconversion materials and are invisible to the naked eye.

SourceAmerican Chemical Society·JournalJournal of the American Chemical Society·DateApr 16, 2014

Scratching the surface: Microbial etchings in impact glass and the search for life on Mars

Researchers have discovered microbial etchings in impact glass from the Ries Impact Structure, Germany, which are remarkably similar to bioalteration textures observed in volcanic glasses. The authors suggest that microbes etched their way through impact glass as they excreted organic acids, creating a potential habitat for life on Mars.

SourceGeological Society of America·JournalGeology·DateApr 16, 2014

New technique detects microscopic diabetes-related eye damage

Researchers at Indiana University have developed a new technique that can detect microscopic changes in the retina caused by diabetes, which may indicate potential sight-threatening complications. The instrument uses adaptive optics to provide highly magnified retinal images and identify subtle changes in blood vessels.

SourceIndiana University·JournalBiomedical Optics Express·DateApr 16, 2014

A greener source of polyester -- cork trees

Researchers have developed a method to extract suberin from cork oak trees and re-make it into a waterproof, antibacterial plastic-like material. The material's biocompatibility makes it suitable for clinical usage, including potential applications in medical devices.

SourceAmerican Chemical Society·JournalBiomacromolecules·DateApr 16, 2014
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Gate for bacterial toxins found

Freiburg researchers identify LRP1 as a key molecule that regulates the intake of toxic bacteria like Clostridium perfringens. This finding opens up new avenues for developing agents against clostridia and may lead to breakthroughs in treating diseases caused by these pathogens.

SourceUniversity of Freiburg·JournalProceedings of the National Academy of Sciences·DateApr 16, 2014

ASPB names 2014 awards recipients

The American Society of Plant Biologists announced its 2014 award recipients, recognizing outstanding contributions to plant biology research, education, and service. The Charles Albert Shull Award went to Libo Shan for her work on plant-microbe interactions, while the Charles Reid Barnes Life Membership Award was awarded to James N. S...

SourceAmerican Society of Plant Biologists·DateApr 16, 2014

How kids' brain structures grow as memory develops

Researchers mapped the hippocampus in children aged 8-14 to understand its development and expansion with age. They found that three subregions grew with age, particularly the CA3/dentate gyrus, which was linked to better memory performance.

SourceUniversity of California - Davis·JournalNeuroImage·DateApr 16, 2014

The surprising consequences of banning chocolate milk

Eliminating chocolate milk from elementary schools resulted in a 10% decrease in total milk sales, as students substituted with white milk, leading to a 29% increase in waste. The ban also had nutritional consequences, including lower sugar and calorie intake but decreased protein and calcium consumption.

SourceCornell Food & Brand Lab·JournalPLOS ONE·DateApr 16, 2014
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.

Meteorites yield clues to red planet's early atmosphere

Researchers analyzed 40 Martian meteorites to understand the evolution of Mars' atmosphere, shedding light on whether life existed or could have existed on the red planet. The study found that the atmospheres of Mars and Earth diverged early in the solar system's history, with sulfur playing a key role in shaping the Martian environment.

SourceUniversity of Maryland·JournalNature·DateApr 16, 2014

Study shows lasting effects of drought in rainy eastern US

A new study by Harvard University scientists shows how severe droughts can trigger cascades of ecosystem change that last for centuries. The research analyzed tree rings spanning over 300,000 square miles and 400 years of history in the eastern US.

SourceHarvard University·JournalEcological Monographs·DateApr 16, 2014

EU must take urgent action on invasive species

A European-wide strategy is needed to manage invasive species, threatening native biodiversity, and costing an estimated €12 billion each year. The EU must commit long-term investment to address the issue, including raising awareness of biosecurity and implementing European-wide legislation.

SourceQueen's University Belfast·JournalManagement of Biological Invasions·DateApr 16, 2014

Eavesdropping on brain cell chatter

Astrocytes are support cells for neurons that provide nutrients and signaling molecules. A new mouse study reveals that astrocytes listen in on neuronal activity only during large bursts of activation, triggering a response with increased calcium levels.

SourceNIH/National Institute of Neurological Disorders and Stroke·JournalNeuron·DateApr 16, 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.

Environmentally compatible organic solar cells

A new European project, MatHero, aims to develop high-efficiency and reliable organic solar cells using novel materials and eco-friendly processes. The goal is to make organic photovoltaics competitive with inorganic counterparts by enhancing efficiency, reducing production costs, and increasing lifespan.

SourceHelmholtz Association·DateApr 16, 2014

Medieval slave trade routes in Eastern Europe extended from Finland and the Baltic Countries to Asia

A recent study reveals that persons captured in medieval raids into present-day Finland, Russian Karelia, and the Baltic Countries were sold on remote trade routes extending to Central Asia. The demand for blonde girls and boys as exotic luxury items drove this trade, with only a few hundred of thousands reaching southern markets.

SourceUniversity of Eastern Finland·JournalRussian History·DateApr 16, 2014

Study provides new insight into how toddlers learn verbs

A study from the University of Liverpool found that showing toddlers similar but distinct actions helped them understand what a verb refers to. This new insight sheds light on how children progress throughout preschool and school years.

SourceUniversity of Liverpool·JournalBritish Journal of Developmental Psychology·DateApr 16, 2014

Why your nose can be a pathfinder

Researchers discovered that smell is connected to memories through an associative process where neural networks are linked via synchronised brain waves of 20-40 Hz. This coherence evolved in parallel with learning and was observed in the entorhinal cortex and hippocampus, demonstrating long-distance communication mediated by waves.

SourceNorwegian University of Science and Technology·JournalNature·DateApr 16, 2014
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.

Preterm births, multiples, and fertility treatment

Research finds that fertility treatments increase the risk of multiple births and prematurity, leading to health complications and significant healthcare costs. Experts propose six policy changes to mitigate these risks, including expanding insurance coverage for IVF and improving doctor-patient communication.

SourceThe Hastings Center·JournalFertility and Sterility·DateApr 16, 2014

Study provides crucial new information about how the ice ages came about

Researchers have discovered new relationships between deep-sea temperature and ice-volume changes to provide insight into the climatic relationships that caused major ice-age cycles. The study found that cooling events and continental ice-volume cycles occurred at different times, contradicting previous theories.

SourceUniversity of Southampton·JournalNature·DateApr 16, 2014

Progress in the fight against quantum dissipation

Scientists at Yale have confirmed a long-held theoretical prediction in physics, improving the energy storage time of a quantum switch. The breakthrough opens new frontiers for quantum information processing and measurement systems.

SourceYale University·JournalNature·DateApr 16, 2014
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.

Researchers track down cause of eye mobility disorder

Researchers at the University of Iowa have identified the mutated protein responsible for a common eye mobility disorder. In a study published in Neuron, they found that a unique swelling in one of the nerves to the eye muscle causes the defect, and that breeding mice with this mutation can enhance the effect.

SourceUniversity of Iowa·JournalNeuron·DateApr 16, 2014

High disease load reduces mortality of children

Children conceived during a severe epidemic show increased resistance to later diseases, a phenomenon known as functional trans-generational effect. This discovery suggests that parents can prepare their children for future diseases, and the underlying mechanism may be linked to an optimized immune response in high-pathogen environments.

SourceMax-Planck-Gesellschaft·JournalPLOS ONE·DateApr 16, 2014

For cells, internal stress leads to unique shapes

Researchers found that internal stress on microtubules guides cell-wall component deposition and influences cell shape. The unusual shape of pavement cells represents a balance between maintaining structural integrity and responding to mechanical stress.

SourceCalifornia Institute of Technology·DateApr 16, 2014

Potential use of Google Glass in surgical settings

A recent study investigates Google Glass's potential use in pediatric surgical settings, finding it useful for hands-free photo/video documentation, making calls, and looking up medical terms. However, concerns over patient privacy remain due to the device's internet connectivity.

SourceElsevier·JournalInternational Journal of Surgery·DateApr 16, 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.

Rapid and accurate mRNA detection in plant tissues

Researchers develop a new ISH method, called RNAscope ISH, for rapid and sensitive localization of mRNA molecules in plant tissues. This approach is faster and highly sensitive than traditional methods, allowing for precise quantification of gene expression.

SourceBotanical Society of America·JournalAmerican Journal of Botany·DateApr 16, 2014

Bristol academics invited to speak at major 5G summit

Two Bristol engineers, Prof Andrew Nix and Prof Mark Beach, will represent the University of Bristol at the Brooklyn 5G Summit in New York. They will explore challenges introduced by 5G+ network designs and discuss developing efficient 5G networks by 2020.

SourceUniversity of Bristol·DateApr 16, 2014

Global scientific team 'visualizes' a new crystallization process

Researchers from Stanford and KAUST develop a novel method to study crystallization, allowing for unprecedented control over crystal structures. This breakthrough has far-reaching implications for flexible electronics, circuits, and pharmaceutical manufacturing.

SourceStanford University School of Engineering·JournalNature Communications·DateApr 16, 2014

Low vitamin D may not be a culprit in menopause symptoms

A new study from the Women's Health Initiative found no link between low vitamin D levels and menopause symptoms, including hot flashes, night sweats, and sleep disturbances. The study analyzed data from 530 women participating in the calcium and vitamin D WHI trial.

SourceThe Menopause Society·JournalMenopause·DateApr 16, 2014

Shade grown coffee shrinking as a proportion of global coffee production

The proportion of shade grown coffee in global production has decreased by nearly 20% since 1996, with traditional methods being replaced by more intensive styles. This shift is linked to lower land and labor costs, but also poses risks to the environment, communities, and individual farmers.

SourceUniversity of Texas at Austin·JournalBioScience·DateApr 16, 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.

Berkeley Lab's Adam Arkin wins 2013 Lawrence Award

Adam Arkin, director of Berkeley Lab's Physical Biosciences Division, has made significant contributions to systems and synthetic biology. He received the 2013 Ernest Orlando Lawrence Award for his work on cellular networks and populations.

SourceDOE/Lawrence Berkeley National Laboratory·DateApr 16, 2014

Researchers question emergency water treatment guidelines

A new study questions the Environmental Protection Agency's emergency water treatment guidelines, suggesting they may be too harsh and impractical to carry out. The researchers found that using more chlorine bleach than necessary can kill disease-causing pathogens, but is often not feasible due to lack of proper equipment and supplies.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateApr 16, 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.

Turning harmful gas into valuable fuels, chemicals

A University of California, Riverside researcher has won a $500,000 grant to study a process that transforms carbon dioxide into valuable fuels and chemicals using a unique catalyst. The technology has the potential to reduce greenhouse gas emissions by one million tons per year or more.

SourceUniversity of California - Riverside·DateApr 16, 2014