Add BrightSurf on Google Email

Science News Archive 2014 - Page 59


Page 59 of 376

Raising cryptography's standards

Researchers at MIT and Maynooth University developed a mathematical framework to calculate the minimum-security guarantees for any given encryption scheme. This allows information managers to make more informed decisions about how to protect data. The framework also applies to data privacy, enabling the modification or structuring of a...

Breaking down DNA by genome

Scientists have developed a new method to isolate plant nuclear DNA from organellar DNA using the human methyl-binding domain. This approach enables rapid and simple separation of genome sequences, reducing wasted data and increasing efficiency in genomic studies.

SourceBotanical Society of America·JournalAmerican Journal of Botany·DateOct 31, 2014

Decoding the emergence of metastatic cancer stem cells

Cancer cells use genetic circuits as a three-way switch to form both cancer stem cells and circulating tumor cells, leading to metastasis. Researchers found significant correspondence between the operation of these two switches, suggesting a mechanism that would confer 'stemness' on hybrid cancer cells.

SourceRice University·JournalInterface·DateOct 31, 2014

Green spaces don't ensure biodiversity in urban areas

A University of Iowa study found that planting trees in urban areas does not guarantee an increase in insect populations, despite attracting species. The researchers surveyed tree species and insect abundance, concluding that built environments can limit diversity by impeding insects' ability to interact with other trees.

SourceUniversity of Iowa·JournalPLOS ONE·DateOct 31, 2014

The digital therapist

Researchers found a correlation between depression and certain acoustic properties in patients' speech, including breathier tone and increased jitter and shimmer. A phone app could use this information to analyze patients' speech and provide feedback and support.

Captive rhinos exposed to urban rumbles

A team of researchers from Texas is studying the impact of urban noises on captive rhinoceros reproduction. They found that infrasonic sounds, often unnoticed by humans, could be distressing for the animals, negatively impacting their health. To mitigate this effect, zoos can implement simple strategies such as sound-absorbing barriers...

A new generation of storage -- ring

The MAX IV facility in Lund, Sweden is developing a storage-ring synchrotron system that will enable new experiments requiring high source brightness and transverse coherence. The system's design challenges include compact magnets and low-vacuum chambers, which require innovative solutions to overcome technical issues.

SourceInternational Union of Crystallography·JournalJournal of Synchrotron Radiation·DateOct 31, 2014

Cell division, minus the cells

Researchers reconstituted cytokinesis, the final stage of cell division, using a cell-free system. The system mimics how the cleavage furrow is assembled, with signals directing molecular traffic. This breakthrough expands the scope of study and enables spatial manipulation of components.

SourceHarvard Medical School·JournalScience·DateOct 31, 2014

'Divide and rule' -- raven politics

Researchers found that ravens with established alliances target those trying to form new ones, using a sophisticated 'divide and rule' strategy. This behavior was observed in approximately 300 wild ravens in the Northern Austrian Alps, demonstrating a high level of social complexity.

SourceUniversity of Vienna·JournalCurrent Biology·DateOct 31, 2014

ESA Frontiers November preview

The November issue of Frontiers in Ecology and Environment presents research on connectivity cost calculations for conservation corridors, agricultural companions that improve yields, and the consequences of growing jellyfish populations for human well-being.

SourceEcological Society of America·JournalFrontiers in Ecology and the Environment·DateOct 31, 2014

Efficient genetic editing

Researchers at Harvard University have developed a method to efficiently deliver genome-editing proteins into cells, bypassing the need for DNA delivery. The new system uses commercially-available cationic lipids to introduce proteins into cells, offering hope for treating genetic diseases, including deafness.

SourceHarvard University·JournalNature Biotechnology·DateOct 31, 2014

Sexual fantasies: Are you normal?

Researchers define sexual deviation by identifying common and rare fantasies in a general population survey. The study found that men have more and more vivid fantasies than women, while women distinguish between fantasy and desire more clearly.

SourceUniversity of Montreal·JournalThe Journal of Sexual Medicine·DateOct 31, 2014

Study shows vibrating insoles could reduce falls among seniors

Researchers found that vibratory stimulation applied to the soles of the feet using piezoelectric technology significantly improves balance by reducing postural sway and gait variability. The study participants showed a persistent improvement in performance on timed tests, indicating potential benefits for fall prevention.

SourcePeters Communications·JournalArchives of Physical Medicine and Rehabilitation·DateOct 30, 2014

Link seen between seizures and migraines in the brain

Seizures and migraines have long been considered separate events, but a new study reveals a surprising connection between the two. By applying fundamental physics principles to an older theory of brain electricity, researchers found that seizures and spreading depression are part of a spectrum of nerve cell behavior.