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Science News for October 23, 2012


Experts call for wildlife conservation network

Prominent wildlife biologists advocate for a national network to coordinate state, federal, and private initiatives. The proposed network aims to identify at-risk species, coordinate conservation efforts, and share information to address threats like climate change and novel diseases.

SourceIndiana University·JournalBioScience·DateOct 23, 2012

Grandmas made humans live longer

A new study provides mathematical support for the 'grandmother hypothesis,' which proposes that humans evolved longer adult lifespans due to grandmothers' care. The simulations indicate that with only a little bit of grandmothering, animals with chimpanzee lifespans evolve into humans in less than 60,000 years.

Quantum computing with recycled particles

A team from the University of Bristol's Centre for Quantum Photonics has developed a technique to recycle particles in a quantum computer, reducing physical resources required for factoring. This breakthrough enables more efficient calculations, paving the way for larger implementations of quantum algorithms.

SourceUniversity of Bristol·JournalNature Photonics·DateOct 23, 2012

Influence in times of crisis: How do men and women evaluate precarious leadership positions?

A study published in Psychological Science found that women are less likely to accept precarious leadership positions but more sensitive to social resources. Men, on the other hand, focus on financial resources. The researchers suggest that societal expectations about gender and leadership play a key role in driving these evaluations.

SourceAssociation for Psychological Science·JournalPsychological Science·DateOct 23, 2012

Study explains connection between Hawaii's dueling volcanoes

A new study explains the connection between Kilauea and Mauna Loa by proposing an upper-mantle link that can account for their competition over a deep magma supply. The research suggests that increased pressure in the upper mantle is transmitted through a partially molten region, causing simultaneous inflation at both volcanoes.

SourceRice University·JournalNature Geoscience·DateOct 23, 2012

High-pressure science gets super-sized

Scientists have developed a way to generate super-high pressures without using shock waves, allowing them to study materials at conditions corresponding to the core of gas giant planets. This breakthrough could lead to new revelations about how the Earth evolved and how iron functions at extremes.

SourceDOE/Argonne National Laboratory·JournalNature Communications·DateOct 23, 2012

Limitations to the 'revolutionary' findings of online studies

Research conducted through online communities faces methodological limitations, including selection bias and information bias, which may impact the accuracy of findings. The study highlights the need for clearer disclosure of benefits and risks to participants, particularly when data is shared with third parties.

SourcePLOS·JournalPLOS Medicine·DateOct 23, 2012

Puppies don't pick up on yawns

A study from Lund University found that dogs under 7 months are immune to contagious yawning, but as they age, they start to mimic human yawns, indicating a developmental increase in empathy. This pattern is similar to human development, suggesting that empathy-based social modulatory effects emerge later in life.

SourceSpringer·JournalAnimal Cognition·DateOct 23, 2012

Open access: Delivering on its potential

The PLOS Biology editorial emphasizes the need for open access journals to ensure research reusability, beyond just accessibility. The scientific community can progress by sharing and building upon each other's work.

SourcePLOS·JournalPLOS Biology·DateOct 23, 2012

Mining social media to discover vehicle defects

Virginia Tech researchers developed a computer-based system to analyze social media posts for vehicle defects, a first large-scale case study confirming the value of social media in vehicle quality management. The system can sift through millions of unrelated posts to identify useful information on safety and performance issues.

SourceVirginia Tech·JournalDecision Support Systems·DateOct 23, 2012

Provider-initiated HIV testing does not affect clients' rights

A new study published in PLOS Medicine found that provider-initiated HIV testing does not negatively impact clients' consent practices, confidentiality, and referral to care. The research suggests that various modes of access can be scaled up without compromising individuals' rights.

SourcePLOS·JournalPLOS Medicine·DateOct 23, 2012

19 species of ferns named for Lady Gaga

A new genus of ferns has been discovered, with 19 species named after pop star Lady Gaga. The 'Gaga' ferns were recognized for their unique characteristics, including fluid definitions of gender and a distinct DNA sequence spelling GAGA.

SourceDuke University·JournalSystematic Botany·DateOct 23, 2012

Turbulent flows in 2D can be calculated in new model

Researchers from the Niels Bohr Institute have developed a statistical model that can replicate chaotic flows in two dimensions, providing a better understanding of turbulent behavior. This breakthrough enables more accurate weather forecasting by accounting for motion patterns in the atmosphere, which are largely two-dimensional.

SourceUniversity of Copenhagen·JournalPhysics of Fluids·DateOct 23, 2012

Formula unlocks secrets of cauliflower's geometry

Researchers have provided a mathematical formula to describe the processes that dictate how cauliflower-like patterns form and develop. The formula was derived from thin films grown using chemical vapour deposition, which successfully predicted the final cauliflower-like patterns by comparing them to actual plants.

SourceIOP Publishing·JournalNew Journal of Physics·DateOct 23, 2012