When drug users go online for the first time to buy opioids, they aren't looking for the widest selection or the best prices for their illicit purchases, a new study suggests. Researchers found that first-time drug buyers who visited one marketplace on the 'darknet' cared only about finding trustworthy sellers -- those who would deliver what they promised and keep the buyers' identities secret.
Cells compete for nutrients. Political campaigns compete for voters. According to new research published in Nature Scientific Reports, general principles may begin to explain how differing strategies play out where groups compete for resources.
It is known that the sun's corona is roughly 100 times hotter than its photosphere -- the sun's visible layer. The reason for this mysterious heating of the solar coronal plasma, however, is not yet entirely understood. A research team in India has developed a set of numerical computations to shed light on this phenomenon, and present this week in Physics of Plasmas, analysis examining the role of chaotic magnetic fields in potential heating mechanisms.
Unlike other mosquito-borne outbreaks, Zika doubles as a sexually transmitted infection, with men retaining the virus 10 times longer in their semen than women do in their vaginal fluids. According to research initiated at the Santa Fe Institute, populations least likely to get tested for Zika could sustain a silent outbreak.
Researchers have found a way to predict minerals missing from those known to science, where to find them, and where to look for new deposits of valuable minerals such as gold and copper. In American Mineralogist, Deep Carbon Observatory researchers at the Carnegie Institution for Science report the first application to mineralogy of network theory, best known for analyzing e.g. the spread of disease, terrorist networks, or Facebook connections.
With the number of security breaches and cyber-attacks on the rise, cyber-security experts may soon have a new tool in the fight against online threats. Patrick Rubin-Delanchy, Heilbronn Research Fellow in Statistics at the University of Oxford, will present a new statistical method for monitoring networks to automatically detect 'strange behavior' and ultimately prevent intrusion on Monday, July 31, at the 2017 Joint Statistical Meetings.
By omitting mechanistic drivers such as sunlight, a statistical theory accurately describes broad ecological patterns in a Panama forest, as well as other natural systems and communities.
Language patterns could be predicted by simple laws of physics, a new study has found. Dr James Burridge from the University of Portsmouth has published a theory using ideas from physics to predict where and how dialects occur.
An innovative new study takes a network theory approach to targeted treatment in rural Africa, and finds that a simple algorithm may be more effective than current policies, as well as easier to deploy, when it comes to preventing disease spread -- by finding those with 'most connections to sick people.'
A research team led by New York University professor Maurizio Porfiri put forth a robotics-based study to control information flow in predator-prey interactions, as well as test the validity of transfer entropy when attempting to understand causal influences of the system. They report their findings this week in the journal Chaos, from AIP Publishing.