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Science News for November 26, 2014


Human antibodies produced in DNA-vaccinated cows protect in lethal models of hantavirus

Scientists have developed protective human antibodies using DNA-vaccinated cows, which showed potent neutralizing activity against two types of hantaviruses. The antibodies protected hamsters from lethal disease caused by these viruses, with seven out of eight treated animals surviving without symptoms.

SourceUS Army Medical Research Institute of Infectious Diseases·JournalScience Translational Medicine·DateNov 26, 2014

Protons fuel graphene prospects

Researchers discovered that protons pass through ultra-thin graphene crystals surprisingly easily, making them attractive for proton-conducting membranes. This breakthrough could improve the efficiency and durability of fuel cells, which use oxygen and hydrogen to convert chemical energy into electricity.

SourceUniversity of Manchester·JournalNature·DateNov 26, 2014

Copper on the brain at rest

Researchers at Berkeley Lab found that proper copper levels modulate spontaneous neural activity in developing circuits, which is critical for brain health and development. The study highlights the importance of managing copper levels to prevent misregulation of signaling in cell-to-cell communications.

SourceDOE/Lawrence Berkeley National Laboratory·JournalProceedings of the National Academy of Sciences·DateNov 26, 2014

Hydrothermal settlers

A study by Okinawa Institute of Science and Technology Graduate University researcher Yuichi Nakajima identified genetic data that suggest the diversity and differentiation of deep-sea barnacle populations in two troughs near Okinawa and the Mariana Islands. The findings have implications for understanding climate change impacts on oce...

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalInternational Journal of Molecular Sciences·DateNov 26, 2014

Toolkit for ocean health

The future ocean will be warmer, with reduced ice extent, higher sea levels, more acidic, and lower oxygen levels. Research must focus on understanding marine systems' responses to cumulative pressures.

SourceFrontiers·JournalFrontiers in Marine Science·DateNov 26, 2014

The mysterious 'action at a distance' between liquid containers

Researchers from the Institute of Physical Chemistry of the Polish Academy of Sciences developed a theory describing the phenomenon of mysterious communication between fluid reservoirs. The new model suggests that the effect can occur in classical one-component fluids and mixtures, not requiring quantum physics.

Hacked emails slice spam fast

Research by Ghita Mezzour and Kathleen Carley found that hacked emails tend to send spam more aggressively, reaching a larger audience faster. This is because malware-infected accounts generate spam automatically, whereas human-propagated spam is often done manually.

SourceInderscience Publishers·JournalInternational Journal of Security and Networks·DateNov 26, 2014

The unbelievable underworld and its impact on us all

A new study reveals the vast diversity of life below-ground, with rapid responses to climate change having far-reaching impacts on future ecosystems. The research suggests that healthy soil is essential for healthy crops, and that integrating knowledge of soil biodiversity into land management decisions could help mitigate climate change.

SourceUniversity of Manchester·JournalNature·DateNov 26, 2014

Van der Waals force re-measured

Scientists at Forschungszentrum Juelich re-measured the van der Waals force for single molecules, revealing a superlinear increase with growing molecular size. The study highlights the importance of van der Waals forces in biomolecules and adhesives, such as geckos' ability to climb smooth walls.

SourceForschungszentrum Juelich·JournalNature Communications·DateNov 26, 2014

Process converts human waste into rocket fuel

A team of researchers from the University of Florida has developed a process to convert human waste into rocket fuel, producing 290 liters of methane per crew per day. This anaerobic digester process can also produce non-potable water and hydrogen, offering a sustainable solution for space missions and potentially on Earth.

SourceUniversity of Florida·JournalAdvances in Space Research·DateNov 26, 2014

Elderly brains learn, but maybe too much

A new study led by Brown University found that older adults learn and retain visual perception tasks as well as younger people, but struggle to filter out irrelevant information. The researchers suggest this may be due to the brain's tendency to learn more than necessary, leading to a 'plasticity and stability dilemma'.

SourceBrown University·JournalCurrent Biology·DateNov 26, 2014

iPS cells used to correct genetic mutations that cause muscular dystrophy

Researchers used iPS cells to correct genetic mutations in Duchenne muscular dystrophy (DMD), a severe muscular degenerative disease. Engineered nucleases TALEN and CRISPR were successfully used to edit the genome of iPS cells generated from DMD patient skin cells, resulting in the disappearance of the mutation responsible for DMD.

Dogs hear our words and how we say them

Researchers found dogs process human speech in left- and right-hemisphere biases, similar to humans. Dogs respond differently to familiar commands and intonation cues, suggesting they pay attention to both who and how we communicate.

SourceCell Press·JournalCurrent Biology·DateNov 26, 2014

SLU researcher finds an off switch for pain

Saint Louis University researcher Daniela Salvemini and colleagues have discovered a way to block a pain pathway in animal models of chronic neuropathic pain, suggesting a promising new approach to pain relief. Activating the A3 adenosine receptor subtype provides robust pain reduction across several types of pain.

SourceSaint Louis University·JournalBrain·DateNov 26, 2014

How do our muscles work?

Scientists at Max F. Perutz Laboratories have elucidated the molecular structure and regulation of α-actinin, a crucial muscle protein. The findings provide unprecedented insights into the protein's mode of action and its role in muscle disorders, paving the way for improved treatments.

SourceUniversity of Vienna·JournalCell·DateNov 26, 2014

Shaping the future of energy storage with conductive clay

Researchers at Drexel University have developed a conductive clay that can be easily molded into various shapes and sizes, representing a significant shift in the production of electrodes for energy storage devices. The clay's high conductivity and plasticity make it an attractive candidate for use in batteries and supercapacitors.

SourceDrexel University·JournalNature·DateNov 26, 2014

DNA may survive suborbital spaceflight, re-entry

Researchers found that plasmid DNA attached to a rocket exterior survived suborbital spaceflight, re-entry, and landing conditions. The study showed that up to 53% of the DNA retained its full biological function, with 35% remaining functional after heating up to 1000°C.

SourcePLOS·JournalPLOS ONE·DateNov 26, 2014

Particles, waves and ants

Researchers found that the time spent by a drunken sailor on a square with streetlamps is constant regardless of the lamp density. This effect also applies to light waves in disordered media, rubber balls rolling across a plank, and even ant paths, revealing a universal phenomenon.

SourceVienna University of Technology·JournalProceedings of the National Academy of Sciences·DateNov 26, 2014

Post-medieval Polish buried as potential 'vampires' were likely local

A study published in PLOS ONE found that individuals buried as potential 'vampires' in 17th-18th century Poland were likely local residents. The research used radiogenic strontium isotope ratios to determine the origin of the individuals, and the results suggested a predominantly local population. This suggests that these burials may h...

SourcePLOS·JournalPLOS ONE·DateNov 26, 2014

Vaccines may make war on cancer personal

Researchers have developed a new vaccine strategy that targets unique features of cancer cells, enabling the immune system to destroy or drive into remission tumors. The vaccines, which use samples of DNA from patient tumors and normal tissue, have shown promising results in computer simulations, cell cultures, and animal models.

SourceWashU Medicine·JournalNature·DateNov 26, 2014

New research supporting stroke rehabilitation

Researchers found that combining imagery with observation strengthens brain activity in movement-related areas, potentially aiding motor function recovery for stroke patients. The technique may help compensate for lost brain functions through brain plasticity.

SourceFrontiers·JournalFrontiers in Human Neuroscience·DateNov 26, 2014