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Results 261 - 280 of 565.


Mathematics - Innovation - 19.03.2018
Podcast: The fight against hunger in hospitals
For centuries, scientists and scholars have measured the influence of individuals and discoveries through citations, a crude statistic subject to biases, politics and other distortions. A new paper led by the Knowledge Lab at the University of Chicago describes a different way to keep score in science-a more direct measure of how influential ideas ripple out across scholarship and culture.

Mathematics - History & Archeology - 27.02.2018
Scientists detect how words grow new meanings. Maybe computers will, too
Scientists detect how words grow new meanings. Maybe computers will, too
What are voice-controlled personal assistants like Alexa and Siri to do when faced with words like "face” that have multiple meanings ranging from a body part to an action? Scientists from UC Berkeley, the University of Toronto and Lehigh University in Pennsylvania have begun to identify the algorithms humans have used over the last thousand years to give words new meanings.

Computer Science - Mathematics - 21.02.2018
Berkeley Lab 'Minimalist Machine Learning' Algorithms Analyze Images From Very Little Data
Berkeley Lab ’Minimalist Machine Learning’ Algorithms Analyze Images From Very Little Data
CAMERA researchers develop highly efficient convolution neural networks tailored for analyzing experimental scientific images from limited training data Mathematicians at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a new approach to machine learning aimed at experimental imaging data.

Life Sciences - Mathematics - 07.02.2018
Hairy tongues help bats drink up
Hairy tongues help bats drink up
Animals have evolved all manner of adaptations to get the nutrients they need. For nectar-feeding bats, long snouts and tongues let them dip in and out of flowers while hovering in mid-air. To help the cause, their tongues are covered in tiny hairs that serve as miniature spoons to scoop and drag up the tasty sap.

Life Sciences - Mathematics - 31.01.2018
Novel computational biology model accurately describes dynamics of gene expression
Novel computational biology model accurately describes dynamics of gene expression
Computational biologists have found a new way to accurately model certain forms of gene expression, including the body's 24-hour internal clock. In this study, we develop a simplifying method to reduce a class of commonly adopted gene expression models to a mathematical model, the PDMP, because it is easier to analyze and simulate than previous models.

Philosophy - Mathematics - 29.01.2018
Indian Sacred Texts and the Logic of Computer Ethics
Indian Sacred Texts and the Logic of Computer Ethics
Can we teach ethical behaviour to machines' Computer Scientists in Vienna are studying ancient Sanskrit texts and using the tools of mathematical logic to describe ethical rules. The Indian sacred texts of the Vedas have been studied for millennia. But now, for the first time in history, computer scientists in Vienna analyse them by applying the methods of mathematical logic.

Chemistry - Mathematics - 26.01.2018
Scientists get better numbers on what happens when electrons get wet
A new study paints a more accurate picture of how electrons behave after striking water, and how quickly they're snatched up in chemical reactions. There's a particular set of chemical reactions that governs many of the processes around us-everything from bridges corroding in water to your breakfast breaking down in your gut.

Computer Science - Mathematics - 22.01.2018
Location detection when GPS doesn't work
Location detection when GPS doesn’t work
With billions of GPS devices in use today, people are beginning to take it for granted that services on their handheld devices will be location-aware. But GPS doesn't work well indoors, and it's not precise enough for several potentially useful applications, such as locating medical equipment in hospitals or pallets of goods in warehouses, or helping emergency responders navigate unfamiliar buildings.

Mathematics - Innovation - 20.12.2017
A ’STEM’ parent boosts girls’ participation in science degrees
ANN ARBOR-Even when girls perform just as well as boys on standardized math tests, they are half as likely to major in science at college. However, having one parent or guardian work in the STEM (science, technology, engineering or math) field makes it more likely for girls to perform better in math and to enroll in a "hard sciences" college degree in programs such as engineering, architecture, math and computer science.

Physics - Mathematics - 19.12.2017
Hidden bridge between quantum experiments and graph theory uncovered using Melvin
Hidden bridge between quantum experiments and graph theory uncovered using Melvin
An answer to a quantum-physical question provided by the algorithm Melvin has uncovered a hidden link between quantum experiments and the mathematical field of Graph Theory. Researchers from the Austrian Academy of Sciences and the University of Vienna found the deep connection between experimental quantum physics and this mathematical theory in the study of Melvin's unusual solutions, which lies beyond human intuition.

Computer Science - Mathematics - 10.12.2017
Reading a neural network's mind
Reading a neural network’s mind
Neural networks , which learn to perform computational tasks by analyzing huge sets of training data, have been responsible for the most impressive recent advances in artificial intelligence, including speech-recognition and automatic-translation systems. During training, however, a neural net continually adjusts its internal settings in ways that even its creators can't interpret.

Mathematics - Health - 05.12.2017
Big hospitals are more efficient, study shows
Big hospitals are more efficient, study shows
Size matters when it comes to a hospital's operational efficiency and smaller hospitals have a higher risk of inefficiency, a study has found. When deciding on a hospital's optimal size, managers need to consider the clinical functions it will offer, according to researchers from The University of Queensland, Flinders University and Sunshine Coast Hospital and Health Service.

Life Sciences - Mathematics - 28.11.2017
Two Prestigious Grants from European Research Council for Freie Universität Berlin
ERC Consolidator Grants for Physicist Stephanie Reich and Computer Scientist Frank Noé No 332/2017 from Nov 28, 2017 Researchers at Freie Universität Berlin have been awarded two prestigious grants from the European Research Council (ERC). Physicist Stephanie Reich and computer scientist Frank Noé won ERC Consolidator Grants, as the ERC announced on Tuesday in Brussels.

Sport - Mathematics - 22.11.2017
Towards better understanding of railway ballast
Towards better understanding of railway ballast
SNCF engineers have been using mathematical models for many years to simulate the dynamic behavior of railways. These models have not been able to take into account large portions of the track have been extremely limited at modelling ballast, the gravel layer located under railway tracks. This is why SNCF Innovation & Recherche asked for help from specialists in wave propagation for all types of media and at varied scales: CNRS and INSA Strasbourg 1 researchers.

Physics - Mathematics - 22.11.2017
New type of turbulence discovered in the Sun
In the outer atmosphere of the Sun a form of turbulence has been discovered that has always been considered impossible: the turbulence is not caused by colliding waves, but by waves moving into the same direction. With the discovery of this phenomenon - called 'uniturbulence' - a number of KU Leuven mathematicians have earned their place in the physics handbooks for future generations.

Mathematics - 21.11.2017
Schooling fish mainly react to one or two neighbours at a time
New research has shown schooling fish constantly change who they decide to pay attention to and respond to one or two neighbours at a time. The study, published in PLOS Computational Biology, developed a new method combining behavioural analyses with a computer model to map the chain of direct interactions in a school of fish.

Economics - Mathematics - 10.11.2017
No-growth economy could mean fewer crashes and higher wages, study shows
No-growth economy could mean fewer crashes and higher wages, study shows An economy based on zero growth could be more stable - experiencing fewer crashes - and bring higher wages, suggests a new University of Sussex study. Running counter to dominant economic thinking, the new research shows that economies can be stable with or without growth and are in fact likely to be less volatile if we stop chasing ever-increasing GDP.

Life Sciences - Mathematics - 24.10.2017
Geometry Plays an Important Role in How Cells Behave, Penn Researchers Report
Inspired by how geometry influences physical systems such as soft matter, researchers at the University of Pennsylvania have revealed surprising insights into how the physics of molecules within a cell affect how the cell behaves. "Cells have a skeleton just like we have a skeleton," said Nathan Bade, a graduate student in the Department of Chemical and Biomolecular Engineering in the School of Engineering and Applied Science , "and, just like our skeleton, it's stiff.

Computer Science - Mathematics - 29.09.2017
There are only 15 possible pentagonal tiles
There are only 15 possible pentagonal tiles
Tiling the plane with a single pattern is a mathematical problem that has interested humans since Antiquity, notably for the aesthetic quality of tiles in mosaics or tiling. One of the unresolved problems in this field that has been puzzling the scientific community since 1918 has now been definitively resolved thanks to Michaël Rao of the Laboratoire d'informatique du parallélisme (CNRS/Inria/ENS de Lyon/Université Claude Bernard Lyon 1).

Life Sciences - Mathematics - 28.09.2017
In people with OCD, actions are at odds with beliefs
UCL researchers have devised a mathematical model to understand what causes obsessive-compulsive disorder (OCD), a set of repeated behaviours deriving from an underlying brain dysfunction that is not yet well understood. In the study, published in Neuron , they found that people with OCD develop an internal, accurate sense of how things work but do not use it to guide behaviour.