Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog – Page 8278

Sometimes, two dimensions are better than three.

In the three-dimensional world we live in, there are two classes of elementary particles: bosons and fermions. But in two dimensions, theoretical physicists predict, there’s another option: anyons. Now, scientists report new evidence that anyons exist and that they behave unlike any known particle. Using a tiny “collider,” researchers flung presumed anyons at one another to help confirm their identities, physicists report in the April 10 Science.

All known elementary particles can be classified either fermions or bosons. Electrons, for example, are fermions. Bosons include photons, which are particles of light, and the famed Higgs boson, which explains how particles get mass (SN: 7/4/12). The two classes behave differently: Fermions are loners and avoid one another, while bosons can clump together.

Read more | >

The role of automatic electrocardiogram (ECG) analysis in clinical practice is limited by the accuracy of existing models. Deep Neural Networks (DNNs) are models composed of stacked transformations that learn tasks by examples. This technology has recently achieved striking success in a variety of task and there are great expectations on how it might improve clinical practice. Here we present a DNN model trained in a dataset with more than 2 million labeled exams analyzed by the Telehealth Network of Minas Gerais and collected under the scope of the CODE (Clinical Outcomes in Digital Electrocardiology) study. The DNN outperform cardiology resident medical doctors in recognizing 6 types of abnormalities in 12-lead ECG recordings, with F1 scores above 80% and specificity over 99%. These results indicate ECG analysis based on DNNs, previously studied in a single-lead setup, generalizes well to 12-lead exams, taking the technology closer to the standard clinical practice.

Read more | >

Amid the coronavirus pandemic that has spread across the U.S., a number of states have extended their lockdown orders in an effort to combat the spread of the virus.

As of April 8, every U.S. state has reported confirmed coronavirus cases but the stay-at-home and shelter-in-place policies all came at different times. California was the first state to issue a stay-at-home order on March 19, while South Carolina was the most recent, issuing their statewide order on April 7. Some other states like Arkansas, Iowa, North Dakota and Nebraska have yet to issue statewide stay-at-home orders.

Read more | >

Materials scientists at Duke University have shown the first clear example that a material’s transition into a magnet can control instabilities in its crystalline structure that cause it to change from a conductor to an insulator.

If researchers can learn to control this unique connection between identified in hexagonal iron sulfide, it could enable new technologies such as spintronic computing. The results appear April 13 in the journal Nature Physics.

Commonly known as troilite, hexagonal iron sulfide can be found natively on Earth but is more abundant in meteorites, particularly those originating from the Moon and Mars. Rarely encountered in the Earth’s crust, most troilite on Earth is believed to have originated from space.

Read more | >

The Ancient History of AI:

This video was made possible by Surfshark. Sign up with this link and enter the promo code ‘Futurology’ to get 83% off and an extra month free of your VPN plan! https://surfshark.deals/Futurology

Artificial intelligence has been a topic of growing prominence in the media and mainstream culture since 2015, as well as in the investment world, with start-ups that even mention the word in their business model, gaining massive amounts of funding.

Continue reading “The Ancient History of Artificial Intelligence” | >