БЛОГ

Page 7025

Aug 30, 2020

First Physics-Based Method for Predicting Large Solar Flares

Posted by in categories: particle physics, space

Solar flares emit sudden, strong bursts of electromagnetic radiation from the Sun’s surface and its atmosphere, and eject plasma and energetic particles into inter-planetary space. Since large solar flares can cause severe space weather disturbances affecting Earth, to mitigate their impact their occurrence needs to be predicted. However, as the onset mechanism of solar flares is unclear, most flare prediction methods so far have relied on empirical methods.

The research team led by Professor Kanya Kusano (Director of the Institute for Space-Earth Environmental Research, Nagoya University) recently succeeded in developing the first physics-based model that can accurately predict imminent large solar flares. The work was published in the journal Science on July 31, 2020.

The new method of flare prediction, called the kappa scheme, is based on the theory of “double-arc instability,” that is a magnetohydrodynamic (MHD) instability triggered by magnetic reconnection. The researchers assumed that a small-scale reconnection of magnetic field lines can form a double-arc (m-shape) magnetic field and trigger the onset of a solar flare (Figure 1). The kappa scheme can predict how a small magnetic reconnection triggers a large flare and how a large solar flare can occur.

Aug 30, 2020

Creating A Chess AI using Deep Learning

Posted by in categories: information science, robotics/AI

When Gary Kasparov was dethroned by IBM’s Deep Blue chess algorithm, the algorithm did not use Machine Learning, or at least in the way that we define Machine Learning today.

Aug 30, 2020

This AI Expert From Senegal Is Helping Showcase Africans In STEM

Posted by in category: robotics/AI

Adji Bousso Dieng will be Princeton’s School of Engineering’s first Black female faculty.

Not only has Adji Bousso Dieng, an AI researcher from Senegal, contributed to the field of generative modeling and about to become one of the first black female faculty in Computer Science in the Ivy League, she is also helping Africans in STEM tell their own success stories.

Dieng, who is currently a researcher at Google and an incoming computer science faculty at Princeton, works in an area of Artificial Intelligence called generative modeling.

Aug 30, 2020

10 Supermassive Black Holes Discovered By a Research Station In The Netherlands [Infographic]

Posted by in category: cosmology

In the past 30–40 years we have only been able to discover a handful of Supermassive Black Hole. Last year this research station found 10 more.

Aug 30, 2020

Emotet malware’s new ‘Red Dawn’ attachment is just as dangerous

Posted by in category: cybercrime/malcode

The Emotet botnet has begun to use a new template for their malicious attachments, and it is just as dangerous as ever.

After a five-month “vacation,” the Emotet malware returned in July 2020 and began to spew massive amounts of malicious spam worldwide.

Aug 30, 2020

PSA: CenturyLink outage takes down Amazon, Hulu, Playstation Network, etc for many users

Posted by in category: futurism

A Centurylink outage has taken out multiple web services including Amazon, Hulu, Playstation Network, etc for much of the world.

Aug 30, 2020

NSF Announces MIT-Led Institute for Artificial Intelligence and Fundamental Interactions

Posted by in categories: cosmology, physics, robotics/AI

IAIFI will advance physics knowledge — from the smallest building blocks of nature to the largest structures in the universe — and galvanize AI research innovation.

The U.S. National Science Foundation (NSF) announced last week an investment of more than $100 million to establish five artificial intelligence (AI) institutes, each receiving roughly $20 million over five years. One of these, the NSF AI Institute for Artificial Intelligence and Fundamental Interactions (IAIFI), will be led by MIT ’s Laboratory for Nuclear Science (LNS) and become the intellectual home of more than 25 physics and AI senior researchers at MIT and Harvard, Northeastern, and Tufts universities.

By merging research in physics and AI, the IAIFI seeks to tackle some of the most challenging problems in physics, including precision calculations of the structure of matter, gravitational-wave detection of merging black holes, and the extraction of new physical laws from noisy data.

Aug 30, 2020

These New Shape-Shifting Materials Get Super Cool, Super Fast

Posted by in category: materials

Shape memory alloys and a kind of plastic crystal chill quickly under force or pressure. They could lead to eco-friendly fridges and air conditioners.

Aug 30, 2020

A model for autonomous navigation and obstacle avoidance in UAVs

Posted by in categories: robotics/AI, transportation

Autonomous unmanned aerial vehicles (UAVs) have shown great potential for a wide range of applications, including automated package delivery and the monitoring of large geographical areas. To complete missions in real-world environments, however, UAVs need to be able to navigate efficiently and avoid obstacles in their surroundings.

Researchers at Luleå University of Technology in Sweden and California Institute of Technology have recently developed a nonlinear model predictive control (NMPC)-based computational technique that could provide UAVs with better navigation and obstacle avoidance capabilities. The NMPC approach they used, presented in a paper published in IEEE Robotics and Automation Letters, is based on the structure of OpEn (Optimization Engine), a parametric optimization software developed by Dr. Pantelis Sopasakis at Queen’s University Belfast.

Continue reading “A model for autonomous navigation and obstacle avoidance in UAVs” »

Aug 30, 2020

Young cancer survivors show genetic signs of accelerated aging

Posted by in categories: biotech/medical, genetics, life extension

A striking new study has found young cancer survivors show high expression of a gene known to be an effective marker of aging. The researchers suggest this genetic biomarker could be used to identify cancer survivors most at risk of later-life frailty due to their treatment.

As we age, concentrations of a gene called p16INK4a gradually increase in our cells, making it a potentially useful molecular marker for aging. One of the gene’s roles is to slow cell division and reduce the proliferation of stem cells.

In a new study researchers set out to investigate p16INK4a levels in pediatric and young adult cancer survivors. The hypothesis was that increased p16INK4a levels could be an effective sign of frailty among young cancer survivors.