MIT mathematicians have derived a formula for determining the maximum amount of heat exchanged between two objects separated by distances shorter than the width of a single hair. For any two objects situated mere nanometers apart, the formula can be used to calculate the most heat one body may transmit to another, based on two parameters: what the objects are made of, and how far apart they are.
A mathematics student has worked out the secrets of how chocolate behaves in a chocolate fountain, answering the age-old question of why the falling 'curtain' of chocolate surprisingly pulls inwards rather than going straight downwards.
Swinging a bat at a 90-mph fastball requires keen visual, cognitive and motor skills. But how do diverse brain networks coordinate well enough to hit the ball? A new University of California, Berkeley, study suggests the human brain's aptitude and versatility can be credited in large part to 'connector hubs,' which filter and route information.
MIT researchers have developed a biomedical imaging system that could ultimately replace a $100,000 piece of a lab equipment with components that cost just hundreds of dollars. The system uses a technique called fluorescence lifetime imaging, which has applications in DNA sequencing and cancer diagnosis, among other things. So the new work could have implications for both biological research and clinical practice.
USC researchers have developed a mathematical model to forecast metastatic breast cancer survival rates using techniques usually reserved for weather prediction, financial forecasting and surfing the Web.
An Australian study has found school leavers and first-year university students don't know how to manage a car loan, repay credit cards or figure out mobile phone deals.
Ants, when walking around in cluttered environments, are known to follow a limited number of common routes. Research published in PLOS Computational Biology and led by Olivier Bertrand (Bielefeld University, Germany) shows that similar routes emerge when an algorithm for collision avoidance, based on the apparent motion of obstacles, is combined with a target direction.
Scientists from Kumamoto University and The University of Tokyo Japan have elucidated the control of cellular movement during blood vessel formation. Their findings show that cellular motion occurs not in only the direction toward the tip of the blood vessels, but in a dynamically changing manner!
A new study has found that pigeons are very good at distinguishing digitized microscope slides and mammograms of normal vs. cancerous breast tissue. With training and selective food reinforcement, pigeons were remarkably adept at identifying benign and malignant breast cancer slides at all magnification levels, a task that typically requires considerable training for humans to master. They also successfully identified microcalcifications on mammograms but had difficulty with classifying breast masses, a very challenging task even for humans.
National security analysts often find that available data is growing much faster than their ability to observe and process it. Sometimes they can't make key connections and often they are overwhelmed struggling to use data for predictions and forensics. Sandia National Laboratories' Pattern Analytics to Support High-Performance Exploitation and Reasoning team has developed solutions that will enable analysts to work smarter, faster and more effectively when looking at complex data in real-time, stressful environments.