When disaster strikes, it is critical that experts, decision makers and emergency personnel have access to real-time information in order to assess the situation and respond appropriately. It is equally critical that individuals and organizations have the capacity to analyze the wealth of data generated in the midst of the disaster and its immediate aftermath in order to produce accurate, customized warnings.
Electromagnetic radiation – it might sound like something that you’d be better off avoiding, but...
Big data: It’s a term we read and hear about often, but is hard to grasp. Computer scientists...
Mathematicians have designed an encryption code capable of fending off the phenomenal hacking...
Integer overflows are one of the most common bugs in computer programs — not only causing programs to crash but, even worse, potentially offering points of attack for malicious hackers. A new algorithm for identifying integer-overflow bugs was tested on five common open-source programs, in which previous analyses had found three bugs. The new algorithm found all three known bugs — and 11 new ones.
The Norwegian Academy of Sciences and Letters has decided to award the Abel Prize for 2015 to the American mathematicians John F. Nash Jr. and Louis Nirenberg “for striking and seminal contributions to the theory of nonlinear partial differential equations and its applications to geometric analysis.” They will receive the Abel Prize from His Majesty King Harald on May 19, 2015. The Abel Prize carries a cash award of about 1 million USD.
A 60-year-old math problem first put forward by Nobel laureate Enrico Fermi has been solved. In 1955, a team of scientists led by Fermi used a computer for the first time to try to solve a numerical experiment. The outcome wasn’t what they were expecting, and the complexity of the problem underpinned the then-new field of non-linear physics and paved the way for six decades of new thinking. Chaos theory is just one of the theories...
The small Lego machine inside the White House whirred, and in a moment it was turning the pages of a story book. One page flipped, then another, ever faster as President Barack Obama marveled at its efficiency. The contraption's eventual aim would be to allow paralyzed or arthritic patients to read books despite their disabilities. "How did you figure this out?" Obama, impressed, asked its inventors.
Los Alamos National Laboratory mechanical and thermal engineering researchers’ efforts to solve the complex problem of how ocean currents affect the infrastructure of floating oil rigs and their computational fluid dynamics (CFD) numerical simulations received recognition from ANSYS, a company that provides computer-based engineering simulation capabilities.
During a panel at the South by Southwest Festival, NASA representatives discussed how citizen scientists have made a difference in asteroid hunting and announced the release of a desktop software application developed by NASA. The application is based on an Asteroid Data Hunter-derived algorithm that analyzes images for potential asteroids. It’s a tool that can be used by amateur astronomers and citizen scientists.
Albert Einstein is known in popular culture for his famous E = mc2 formula. Scientists know him for revolutionizing physics with his general theory of relativity. But is it possible to know the man behind the big ideas? Yes, thanks to the massive body of written work and correspondence he left behind, which the Einstein Papers Project is dedicated to collecting, editing, translating and publishing.
Scientists have produced a new map of the Moon’s most unusual volcano showing that its explosive eruption spread debris over an area much greater than previously thought. A team of astronomers and geologists studied an area of the lunar surface in the Compton-Belkovich Volcanic Complex. By mapping the radioactive element thorium, which spewed out during the eruption, they discovered debris was able to cover an area the size of Scotland.
Breakthrough science requires pioneers. People who combine brilliance with courage, even in the face of daunting opposition. The women who paved the way for modern scientific exploration exemplify this spirit; grappling not only with fundamental questions of the universe, but with discrimination and societal constraints that often stripped them of scientific credit.
A means of reprogramming a flawed immune response into an efficient anti-tumoral one was brought to light by the results of a translational trial relating to breast cancer. Thanks to the innovative combination of mathematical modeling and experimentation, only 20 tests were necessary, whereas traditional experimentation would have required 596 tests to obtain the same results.
Researchers from Brown and Johns Hopkins universities have come up with a new way to evaluate how well computers can divine information from images. The team describes its new system as a “visual Turing test,” after the legendary computer scientist Alan Turing’s test of the extent to which computers display human-like intelligence.
Simulink is a block diagram environment for multidomain simulation and model-based design. It supports simulation, automatic code generation, and continuous test and verification of embedded systems. The MATLAB add-on provides a graphical editor, customizable block libraries and solvers for modeling and simulating dynamic systems.
To humor mathematicians, picture a pile of sand grains — say, a billion — in one square of a vast sheet of graph paper. If four or more grains occupy a single square, that square topples by sending one grain to each of its four neighboring squares. Keep zooming out so the squares become very small, and something strange happens — the sand still “remembers” that it used to live on a square lattice, and a distinctive pattern emerges.
An e-pi-c day is coming! On 3.14.15 at 9:26:53; the date/time will correspond to the first 10 digits of the mathematical constant pi (3.141592653). This happens only once per century — a truly once-in-a-lifetime event for most people.
Cicero said: “The shifts of fortune test the reliability of friends.” Fortunately, the reliability of processes can be more easily understood than friends. It is defined as the probability of performing a specific function under certain conditions for a specific period of time without failure
Children don’t have to be told that “cat” and “cats” are variants of the same word — they pick it up just by listening. To a computer, though, they’re as different as, well, cats and dogs. Yet it’s computers that are assumed to be superior in detecting patterns and rules, not four-year-olds. Researchers are trying to, if not to solve that puzzle definitively, at least provide the tools to do so.
Researchers gave a computer program the outline of how a magic jigsaw puzzle and a mind-reading card trick work, as well the results of experiments into how humans understand magic tricks. With this information, the system created completely new variants on those tricks which can be delivered by a magician.
Researchers have developed a statistical technique that sorts out when changes to words’ pronunciations most likely occurred in the evolutionary history of related languages. Their model gives researchers a renewed opportunity to trace words and languages back to their earliest common ancestor or ancestors — potentially thousands of years further into prehistory than previous techniques.
Researchers have developed a new algorithm which increases the small time step required by ultrafast phenomena from about one attosecond to about half a femtosecond. This allows them to simulate ultrafast phenomena for systems of around 100 atoms.
A new mathematical analysis tool has allowed a deeper understanding of the anatomy of the human head, describing the skull as an extended network structured in 10 modules. Researchers have developed a research methodology called Anatomical Network Analysis (AnNA), based on network analysis mathematical tools for studying anatomy.
Astronomers have their own version of the single person's dilemma: Do you wait by the phone for a call? Or do you make the call yourself and risk getting shot down? Instead of love, of course, astronomers are looking for alien life and, for decades, they have sat by their telescopes waiting to hear from E.T. It didn't happen. Now, some want to beam messages out into the void and invite the closest few thousand worlds to chat or even visit.
To bring facts and clarity to the public debate about immunization in light of the recent measles outbreak, the University of Pittsburgh Graduate School of Public Health unveiled a computer simulation that explores the impact of measles outbreaks in cities across the U.S. Users can see how an outbreak would play out if their city had high or low vaccination rates.
The author of this wonderful text delivers a brief, easy-to-absorb, yet very comprehensive text on modeling real-world data with Maple. Maple is software for performing mathematics, with a none-too-steep learning curve. In the introduction, the author is quick to point out that this is neither a detailed textbook of mathematical modeling, nor Maple. It is, however, a very well-written manual of introductory modeling and use of Maple.
Statistical decision making resembles a process Alan Turning's team did in Bletchley Park to work out the settings of German enigma machines. In order to make use of the large clicking machine, Turing's team analyzed pairs of randomly intercepted German messages, aligned them one above the other to accumulate evidence from letter pairs until they reach a threshold level of certainty that the messages were sent on identical enigma machine.
Top researchers are using mathematical modelling and heavy computations to understand how the brain can both remember and learn. Ten years ago, when the team of Marianne Fyhn and Torkel Hafting Fyhn cooperated with the Nobel Prize winning team of May-Britt and Edvard Moser at NTNU, they discovered the sense of orientation in the brain.
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