Archive for the ‘computing’ category: Page 501

Oct 3, 2018

Liquid crystals and the origin of life

Posted by in categories: biotech/medical, computing, genetics, mobile phones

The display screens of modern televisions, cell phones and computer monitors rely on liquid crystals—materials that flow like liquids but have molecules oriented in crystal-like structures. However, liquid crystals may have played a far more ancient role: helping to assemble Earth’s first biomolecules. Researchers reporting in ACS Nano have found that short RNA molecules can form liquid crystals that encourage growth into longer chains.

Scientists have speculated that life on Earth originated in an “RNA world,” where RNA fulfilled the dual role of carrying genetic information and conducting metabolism before the dawn of DNA or proteins. Indeed, researchers have discovered catalytic RNA strands, or “ribozymes,” in modern genomes. Known ribozymes are about 16–150 nucleotides in length, so how did these sequences assemble in a primordial world without existing ribozymes or proteins? Tommaso Bellini and colleagues wondered if liquid crystals could help guide short RNA precursors to form longer strands.

To find out, the researchers explored different scenarios under which short RNAs could self-assemble. They found that at high concentrations, short RNA sequences (either 6 or 12 nucleotides long) spontaneously ordered into phases. Liquid crystals formed even more readily when the researchers added magnesium ions, which stabilized the crystals, or polyethylene glycol, which sequestered RNA into highly concentrated microdomains. Once the RNAs were held together in liquid crystals, a chemical activator could efficiently join their ends into much longer strands. This arrangement also helped avoid the formation of circular RNAs that could not be lengthened further. The researchers point out that and the chemical activator would not be found under primordial conditions, but they say that other molecular species could have played similar, if less efficient, roles.

Read more

Sep 28, 2018

The Arch Mission Foundation Announces Digital Data Stored in DNA Added to Lunar Library™, Creating Groundbreaking Archive of Knowledge on the Moon

Posted by in categories: biotech/medical, computing, space

LOS ANGELES (PRWEB) September 27, 2018

The Arch Mission Foundation today announced the creation of an archive of knowledge encoded into synthetic DNA by Microsoft, Twist Bioscience Corporation, and the University of Washington to be included in the Lunar Library™. The DNA Archive will feature 10,000 crowdsourced images and the full text of 20 important books, among other items. The data is encoded into billions of synthetic DNA molecules and encapsulated for long-term preservation. Collectively this data will represent the first Special Collection of the Lunar Library, which the Arch Mission Foundation announced last spring.

The Arch Mission Foundation sought partners that could help curate these materials and assist in achieving a remarkable collection that reflects both the best of human knowledge, as well as the most ambitious technical abilities in the emerging new field of molecular data storage. Molecular data storage is a new technology for storing and retrieving data from molecules of synthetic, non-living DNA.

Continue reading “The Arch Mission Foundation Announces Digital Data Stored in DNA Added to Lunar Library™, Creating Groundbreaking Archive of Knowledge on the Moon” »

Sep 28, 2018

Microsoft’s Quantum Development Kit adds a chemical simulation library

Posted by in categories: computing, quantum physics

During last September’s Ignite conference, Microsoft heavily emphasized its quantum computing efforts and launched both its Q# programming language and development kits.

This year, the focus is on other things, and the announcements about quantum are few and far between (and our understanding is that Microsoft, unlike some of its competitors, doesn’t have a working quantum computing prototype yet). It did, however, announce an addition to its Quantum Development Kit that brings a new chemical simulation library to tools for getting started with quantum computing.

Continue reading “Microsoft’s Quantum Development Kit adds a chemical simulation library” »

Sep 27, 2018

Superconducting metamaterial traps quantum light

Posted by in categories: computing, engineering, quantum physics

Conventional computers store information in a bit, a fundamental unit of logic that can take a value of 0 or 1. Quantum computers rely on quantum bits, also known as a “qubits,” as their fundamental building blocks. Bits in traditional computers encode a single value, either a 0 or a 1. The state of a qubit, by contrast, can simultaneously have a value of both 0 and 1. This peculiar property, a consequence of the fundamental laws of quantum physics, results in the dramatic complexity in quantum systems.

Quantum computing is a nascent and rapidly developing field that promises to use this complexity to solve problems that are difficult to tackle with conventional computers. A key challenge for computing, however, is that it requires making large numbers of qubits work together—which is difficult to accomplish while avoiding interactions with the outside environment that would rob the qubits of their quantum properties.

New research from the lab of Oskar Painter, John G Braun Professor of Applied Physics and Physics in the Division of Engineering and Applied Science, explores the use of superconducting metamaterials to overcome this challenge.

Continue reading “Superconducting metamaterial traps quantum light” »

Sep 27, 2018

Illuminating Science

Posted by in categories: biological, computing, physics, science

Illuminating mathematics, physics, biology and computer science research through public service journalism.

Read more

Sep 26, 2018

The Physics of Information: Quantum Potentiality to Classical Actuality of Your Experiential Reality

Posted by in categories: computing, mathematics, neuroscience, quantum physics

Physicists face the same hard problem as neuroscientists do: the problem of bridging objective description and subjective experience. Physics has encountered consciousness. Quantum theory says an object remains in a superposition of possibilities until observed. We can consider a quantum state as being about our knowledge rather than a direct description of physical reality. The physics of information just may be that bridging of quantum-to-digital reality of subjective experience. We are now at the historic juncture when quantum computing could reveal quantum information processing underpinnings of subjectivity. Quantum mechanics is a spectacularly successful theory of fundamental physics that allows us to make probabilistic predictions derived from its mathematical formalism, but the theory doesn’t tell us precisely how these probabilities should be interpreted in regards to phenomenology, i.e. our experiential reality. There are basically three main interpretive camps within quantum mechanics from which stem at least a dozen further interpretations.

By Alex Vikoulov.


Continue reading “The Physics of Information: Quantum Potentiality to Classical Actuality of Your Experiential Reality” »

Sep 25, 2018

In 1973, an MIT computer predicted the end of civilization. So far, it’s on target

Posted by in category: computing

An MIT model predicted when and how human civilization would end. Hint: it’s soon.

Read more

Sep 24, 2018

Key companies to attend White House quantum computing meeting

Posted by in categories: computing, government, quantum physics

WASHINGTON (Reuters) — The White House will hold a meeting on Monday on U.S. government efforts to boost quantum information science, with administration officials, leading companies including Alphabet Inc ( GOOGL.O ), IBM Corp ( IBM.N ), JPMorgan Chase & Co ( JPM.N ) and academic experts taking part.

Read more

Sep 24, 2018

A new way to count qubits

Posted by in categories: computing, quantum physics

Researchers at Syracuse University, working with collaborators at the University of Wisconsin (UW)-Madison, have developed a new technique for measuring the state of quantum bits, or qubits, in a quantum computer.

Their findings are the subject of an article in Science magazine, which elaborates on the experimental efforts involved with creating such a technique.

The Plourde Group—led by Britton Plourde, professor of physics in Syracuse’s College of Arts and Sciences (A&S)—specializes in the fabrication of superconducting devices and their measurement at low temperatures.

Read more

Sep 24, 2018

The Truth about Hydrogen

Posted by in categories: computing, engineering

Get 2 months of Skillshare for FREE using this link: https://skl.sh/realengineering13

Errors: I made an off hand comment about adding efficiencies in the video without thinking. This is obviously incorrect, but the final calculation does in fact multiply the efficiencies.

Continue reading “The Truth about Hydrogen” »