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Science News Archive 2014 - Page 296


Page 296 of 376

Unfolded proteins collapse when exposed to heat and crowded environments

Researchers have discovered that increased temperature and crowded environments cause unfolded proteins to shrink and lose their complex functions. This discovery has significant implications for understanding various biological processes, including cancer onset.

SourceUniversity of Zurich·JournalProceedings of the National Academy of Sciences·DateMar 24, 2014

When mothers are active so are their children -- but many mothers are not

A new study found that mothers' levels of physical activity are closely related to those of their preschool children. Only 53% of mothers engaged in 30 minutes of moderate-to-vigorous physical activity at least once a week, with the amount of activity a mother and her child did each day being highly correlated.

SourceUniversity of Cambridge·JournalPEDIATRICS·DateMar 24, 2014

New study shows heart abnormalities in fish embryos exposed to Deepwater Horizon oil

A new study has found that exposure to crude oil from the Deepwater Horizon spill can cause serious defects in heart development and function of fish embryos. The research highlights the potential impacts on commercially important pelagic fish populations in the Gulf of Mexico.

SourceUniversity of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science·JournalProceedings of the National Academy of Sciences·DateMar 24, 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.

Plugging the hole in Hawking's black hole theory

Physicist Chris Adami has solved the information paradox in Hawking's black hole theory by introducing the concept of stimulated emission. According to Adami, the information swallowed by a black hole is copied and preserved outside the event horizon through stimulated emission.

SourceMichigan State University·JournalClassical and Quantum Gravity·DateMar 24, 2014

Researchers see Kelvin wave on quantum 'tornado' for first time

Physicists have observed Kelvin waves on quantum 'tornadoes' for the first time, confirming a key prediction. The discovery was made using extremely cold liquid helium and provides new insights into turbulence in quantum fluids.

SourceUniversity of Maryland·JournalProceedings of the National Academy of Sciences·DateMar 24, 2014

Leading surgeons warn against media hype about tracheal regeneration

Tracheal bioengineering should be demonstrated as both effective and safe before further transplants. The authors report high mortality and morbidity rates among patients who received bioengineered tracheas, casting doubt on the field's current state.

SourceAmerican Association for Thoracic Surgery·JournalJournal of Thoracic and Cardiovascular Surgery·DateMar 24, 2014

Annals of Internal Medicine tip sheet for March 25, 2014

The US Preventive Services Task Force found insufficient evidence to recommend routine screening for cognitive decline in older adults. The FDA is reforming its approval process for high-risk medical devices to prioritize patient safety, requiring clinical data and clear labeling.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateMar 24, 2014

Nasal spray delivers new type of depression treatment

Researchers at CAMH have developed a nasal spray that delivers a peptide to treat depression, providing an alternative therapeutic approach. The peptide treatment interferes with dopamine receptors, leading to anti-depressant effects and showing potential in relieving symptoms.

SourceCentre for Addiction and Mental Health·JournalNeuropsychopharmacology·DateMar 24, 2014
Apple iPhone 17 Pro

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

Scientists find a molecular clue to the complex mystery of auxin signaling in plants

Researchers at Washington University in St. Louis have identified a key protein in the auxin signaling network that may help understand the entire mechanism. The protein's interaction domain allows it to form chains with other proteins, fine-tuning the response of individual cells to auxin and producing detailed patterns on plant leaves.

SourceWashington University in St. Louis·JournalProceedings of the National Academy of Sciences·DateMar 24, 2014

Canadians spend more on private health insurance for smaller payouts

A recent study found that Canadians have paid $6.8 billion more in premiums than they received in benefits from private health insurance since 2011. The gap between what insurers take in and what they pay out has increased threefold over the past two decades.

SourceUniversity of British Columbia·JournalCanadian Medical Association Journal·DateMar 24, 2014

Autophagy in the initial stage is unrelated to the composition of beclin 1 complex

Researchers found that the initial stage of autophagy is not directly related to the composition of the Beclin-1 complex. Instead, other mechanisms are likely involved in inducing autophagy. This study highlights the complexity of autophagy regulation and challenges current understanding of its role in neurodegenerative diseases.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateMar 24, 2014

New technique sheds light on human neural networks

Researchers developed a new technique using spatial light interference microscopy (SLIM) to measure human neural networks, showing how neurons grow, organize, and transport materials. The study provides insights into the formation of neural networks and could lead to advancements in understanding diseases like Alzheimer's.

SourceBeckman Institute for Advanced Science and Technology·JournalScientific Reports·DateMar 24, 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.

p53 cuts off invading cancer cells

Researchers discovered that p53 acts to prevent cancer cell invasion by initiating a chain of events that ultimately prevents the formation of lamellipodia. This process involves the activation of a mitochondrial protease called Omi, which cleaves actin filaments and suppresses the activity of focal adhesion signaling protein p130Cas.

SourceRockefeller University Press·JournalJournal of Cell Biology·DateMar 24, 2014

How developing sperm stick to the right path

Researchers found that developing sperm cells lacking p73 detached prematurely and died, while Sertoli cells lost their characteristic morphology. The study demonstrates the critical role of p73 in regulating cell adhesions for male fertility.

SourceRockefeller University Press·JournalJournal of Cell Biology·DateMar 24, 2014

From mouse ears to man's?

Researchers at Tel Aviv University have discovered that DNA therapy can preserve inner ear nerve cells in humans with certain types of progressive hearing loss. The study uses a protein growth factor to block degeneration and has important implications for enhancing sound perception with cochlear implants.

SourceAmerican Friends of Tel Aviv University·JournalHearing Research·DateMar 24, 2014

Recovering valuable substances from wastewater

Researchers have developed a technology to recover phosphorus from wastewater using superparamagnetic particles. The particles trap phosphate anions, which can then be removed using magnets, leaving water clear of pollutants. This innovative method has the potential to protect the environment and provide a sustainable raw material source.

SourceFraunhofer-Gesellschaft·DateMar 24, 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.

Protein plays key role in infection by oral pathogen

Research finds that protein TG2 enables bacteria Porphyromonas gingivalis to adhere to cells, and blocking its associations prevents bacterial adhesion. The study provides insight into a potential target for preventing gum disease.

SourceForsyth Institute·JournalProceedings of the National Academy of Sciences·DateMar 24, 2014

Statins could ease coughing in lung disease patients, study finds

A daily high dose of statins over six months significantly improved coughing symptoms in 12 out of 30 patients with bronchiectasis. The treatment also reduced inflammation and enabled patients to tolerate gentle exercise better. Larger studies are now needed to confirm these findings.

SourceUniversity of Edinburgh·JournalThe Lancet Respiratory Medicine·DateMar 24, 2014

First look at breast microbiota raises tantalizing questions

A recent study published in Applied and Environmental Microbiology has identified a distinct population of microbes in the breast tissue, with Proteobacteria being the dominant phylum. The presence of beneficial bacteria like Lactobacillus and Bifidobacteria suggests a potential protective effect for both mother and child.

SourceAmerican Society for Microbiology·JournalApplied and Environmental Microbiology·DateMar 24, 2014

Biased sex ratios predict more promiscuity, polygamy and divorce in birds

A study by University of Sheffield and University of Bath found that female-biased populations have higher divorce rates, while male-dominated environments lead to increased short-term infidelity. The research also discovered that both sexes become more polygamous when the sex ratio is skewed towards the opposite sex.

SourceUniversity of Sheffield·JournalCurrent Biology·DateMar 24, 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.

Like being inside a star

Researchers used a highly accurate simulation model to test a hypothesis about the behavior of hydrogen under extreme conditions. The study found that metallization can only occur at pressures approaching 500 gigapascals, a value that is currently beyond experimental capabilities.

SourceInternational School of Advanced Studies (SISSA)·JournalNature Communications·DateMar 24, 2014

New discovery finds missing hormone in birds

A team of researchers from the University of Akron has made a groundbreaking discovery by identifying the missing hormone leptin in birds. Leptin plays a crucial role in regulating body fat storage, metabolism, and appetite, but its presence was unknown in avian species until now.

SourceUniversity of Akron·JournalPLOS ONE·DateMar 24, 2014

Study finds gout drug may reduce risk of death

A recent study published in Annals of the Rheumatic Diseases found that allopurinol, a commonly used gout medication, is associated with a reduced risk of death in hyperuricemic patients. The study also suggests that treatment with allopurinol may protect against premature death, outweighing rare but serious adverse effects.

SourceBoston University School of Medicine·JournalAnnals of the Rheumatic Diseases·DateMar 24, 2014

Computer models solve geologic riddle millions of years in the making

A team of scientists used computer modeling to reveal how giant swirls form during plate collision, explaining the origin of curved mountain chains along subduction zones. The model suggests that parts of the subducted slab sweep around behind the collision, pushing continental material into the mountain belt.

SourceUniversity of Southern California·JournalNature·DateMar 24, 2014
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.

Motor learning: Lining up our sights

Neurologists investigate the significance of the vestibular system in directing gaze, finding that patients with vestibular or cerebellar dysfunction have difficulty controlling eye movements. The study suggests that rehabilitation training based on active head movements can enhance gaze shift control and learning to find endpoints.

SourceLudwig-Maximilians-Universität München·JournalBrain·DateMar 24, 2014

A mathematical equation that explains the behavior of nanofoams

A study by Universidad Carlos III de Madrid reveals that nanofoams follow the same universal laws as soap lather, with small bubbles disappearing in favor of larger ones. The researchers used an atomic force microscope to observe the evolution of nanostructures during ion radiation.

SourceUniversidad Carlos III de Madrid·JournalPhysical Review Letters·DateMar 24, 2014

'RoboClam' replicates a clam's ability to burrow while using little energy

Researchers created a robotic clam called RoboClam that can burrow into undersea soil using little energy. By mimicking the movement of an Atlantic razor clam, RoboClam can liquefy the soil around its shell, reducing drag and allowing it to move quickly and efficiently.

SourceMassachusetts Institute of Technology·JournalBioinspiration & Biomimetics·DateMar 24, 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.

Research reveals new depths of complexity in nerve cells

Researchers found CaM Kinase II plays a significant role in controlling neuropeptide release from neurons, affecting learning, memory, social behaviors, and mood. The study's findings could lead to future therapies targeting altered mood and memory in humans.

SourceOklahoma Medical Research Foundation·JournalGenetics·DateMar 24, 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.

Leaders are wired to be task-focused or team-builders, but can be both

Research suggests that a leader must be either analytical or empathetic, but not both at the same time. However, recent studies from Case Western Reserve University reveal that this distinction has a foundation in our brains, which allows us to switch between the two modes.

SourceCase Western Reserve University·JournalFrontiers in Human Neuroscience·DateMar 24, 2014

New implant shows promise for painful osteoporotic spine fractures

A new vertebral augmentation implant showed promise in reducing pain and improving function in patients with compression fractures caused by osteoporosis. The study, involving 300 patients, found the implant to be effective in providing similar pain relief as current treatments and improving quality of life.

SourceSociety of Interventional Radiology·JournalJournal of Vascular and Interventional Radiology·DateMar 24, 2014

Complex brain functional network connection after stroke

Researchers discovered that stroke patients' brains exhibit more complex functional network connectivity than healthy controls. The study also identified a compensation loop in the brain's functional network following stroke, suggesting its role in rehabilitation.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateMar 24, 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.

Hunt for an unidentified electron object

The new framework was used to understand the dynamics of quantized vortices and their interaction with electrons. The researchers discovered a novel mechanism of vortex multiplication, which explains why unidentified electron objects were found only at lower temperatures.

SourceUniversity of Cambridge·JournalProceedings of the National Academy of Sciences·DateMar 24, 2014

Dab2: How to attenuate brain injury due to Alzheimer's disease?

Researchers found that Dab2 overexpression significantly increased TβRII and p-SMAD2/3 levels, reducing amyloid-beta deposition, microglia activation, and neuronal loss in APP/PS1 mouse brain tissue. This suggests a neuroprotective role of Dab2 in Alzheimer's disease.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateMar 24, 2014

Obamacare: 42 percent of Americans can't explain a deductible

A survey by USC researchers found that those who could benefit most from the Affordable Care Act, including low-income earners, are also the most uninformed about health care policies. The study showed that 42% of Americans couldn't describe a deductible and 62% didn't know the difference between HMO and PPO plans.

SourceUniversity of Southern California·JournalProceedings of the National Academy of Sciences·DateMar 24, 2014

Researcher: Study on element could change ballgame on radioactive waste

A team of chemists, led by Professor Thomas Albrecht-Schmitt at Florida State University, has made significant discoveries about the element californium. The findings suggest that californium can bond and separate other materials with remarkable abilities, making it resistant to radiation damage.

SourceFlorida State University·JournalNature Chemistry·DateMar 23, 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.

Heparin might be the key to prevent prion conversion and disease

Researchers found that heparin interactions with the terminal domains of murine prion protein stabilize the protein, preventing aggregation. This stabilization prevents prion conversion and disease. Heparin may establish groundwork for therapeutic use against prion diseases.

SourcePublicase International·JournalThe FASEB Journal·DateMar 23, 2014

Off-rift volcanoes explained

Researchers used a numerical model to demonstrate the link between crustal unloading and magma transport in rift valleys. In broad, shallow rifts, magma ascends vertically, while in deep, narrow rifts, it's strongly deviated, resulting in off-rift volcanoes forming at distances from the rift axis.

SourceGFZ GeoForschungsZentrum Potsdam, Helmholtz Centre·JournalNature Geoscience·DateMar 23, 2014

TGen-led study discovers genetic cause of rare type of ovarian cancer

A groundbreaking study led by TGen has identified a genetic mutation in the SMARCA4 gene as the primary driver of small cell carcinoma of the ovary, hypercalcemic type (SCCOHT), a rare and aggressive form of ovarian cancer. This discovery holds promise for developing targeted therapies and improving diagnosis.

SourceThe Translational Genomics Research Institute·JournalNature Genetics·DateMar 23, 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.

Experiment opens the door to multi-party quantum communication

Physicists demonstrate distribution of three entangled photons at three different locations, proving quantum nonlocality and opening possibilities for multi-party quantum communication. The experiment overcomes the locality loophole, allowing for faster-than-light information transfer.

SourceUniversity of Waterloo·JournalNature Photonics·DateMar 23, 2014

'MaMTH' advance: New technology sheds light on protein interactions

Researchers developed a new technology called MaMTH to study human proteins, particularly membrane proteins that contribute to disease. The technology identifies a protein, CRKII, that plays a role in non-small cell lung cancer and suggests a potential therapeutic approach.

SourceUniversity of Toronto·JournalNature Methods·DateMar 23, 2014

Could diamonds be a computer's best friend?

Researchers at Ohio State University demonstrated that diamond wires can transmit spin, a magnetic effect that could revolutionize computing. The discovery challenges conventional methods of measuring spin dynamics and has the potential to make computers faster and more powerful.

SourceOhio State University·JournalNature Nanotechnology·DateMar 23, 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.

Unavoidable disorder used to build nanolaser

Researchers at the Niels Bohr Institute discovered that imperfect nanostructures can be used to produce 'nanolasers', which is an ultimately compact and energy-efficient light source. The imperfections in photonic crystal membranes result in controlled reflections, amplifying light and enabling efficient laser production.

SourceUniversity of Copenhagen - Niels Bohr Institute·JournalNature Nanotechnology·DateMar 23, 2014

Mass. General study identifies path to safer drugs for heart disease, cancer

Researchers at Massachusetts General Hospital have identified a path to safer drugs for heart disease and cancer. By analyzing the structure of an extracellular matrix protein and its interaction with an integrin, they have discovered a high-affinity version that can bind strongly without inducing unintended receptor activation.

SourceMassachusetts General Hospital·JournalNature Structural & Molecular Biology·DateMar 23, 2014

Fast and reliable: New mechanism for speedy transmission in basket cells discovered

Basket cells convert excitatory signals into inhibitory outputs within milliseconds; researchers identify controlled increase in Na+ channels and conductance for fast transmission. Signal processing is made possible by high density of Na+ channels and increased conductance, compensating for small axon diameter and lack of myelination.

SourceInstitute of Science and Technology Austria·JournalNature Neuroscience·DateMar 23, 2014

Shifting evolution into reverse promises cheaper, greener way to make new drugs

Scientists have successfully used a novel approach called bioretrosynthesis to produce the HIV drug didanosine. This method leverages natural selection to create specialized enzymes that can manufacture complex molecules from simple sugars, offering a more sustainable alternative to traditional chemistry.

SourceVanderbilt University·JournalNature Chemical Biology·DateMar 23, 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.

The Lancet journals: World TB Day media alert

The Lancet journals publish a special collection on tuberculosis, highlighting emerging challenges like drug-resistant strains and poor treatment outcomes. New anti-tuberculosis drugs and host-directed therapies are being developed to improve treatment efficacy.

SourceThe Lancet·JournalThe Lancet·DateMar 23, 2014

MIT engineers design 'living materials'

Researchers at MIT have successfully designed and created living materials that incorporate non-living components, such as gold nanoparticles and quantum dots. These hybrid materials exhibit unique properties, including the ability to conduct electricity and emit light, making them suitable for various energy applications.

SourceMassachusetts Institute of Technology·JournalNature Materials·DateMar 23, 2014

Drugs fail to reawaken dormant HIV infection

Scientists at Johns Hopkins report that compounds designed to 'wake up' dormant HIV reservoirs have failed to work in laboratory tests of infected cells taken directly from patients. The failure challenges the idea that a single latency-reversing agent can uncover the hidden virus.

SourceJohns Hopkins Medicine·JournalNature Medicine·DateMar 23, 2014