Computer Science News

Brain-Inspired Molecular Memristor Has Exceptional Memory Reconfigurability

Profuse dendritic-synaptic interconnections among neurons in the neocortex embed intricate logic structures enabling sophisticated decision-making that vastly outperforms any artificial electronic analogues. The physical complexity is far beyond existing circuit fabrication technologies: moreover, the network in a brain is dynamically reconfigurable, which provides flexibility and adaptability to changing environments. In contrast, state-of-the-art semiconductor logic circuits are based on threshold switches that are hard-wired to perform predefined logic functions. To advance the performance of logic circuits, Goswami et al. re-imagined fundamental electronic circuit elements by expressing complex logic in nanometer-scale material properties. Image credit: National University of Singapore.
Sep 2, 2021 by News Staff

The new reconfigurable memristor, or an electronic memory device, is based on a molecular system that can transition between on and off states at several discrete sequential voltages, according to a paper published in the journal Nature. Profuse dendritic-synaptic interconnections among neurons in the neocortex embed intricate logic structures enabling sophisticated decision-making that vastly outperforms any artificial electronic analogues. The physical...

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As part of the BrainGate clinical trial, researchers are using tiny electrode arrays to record signals from the motor cortex of the brain; those signals can then be used to control robotic prostheses, computers or other devices; the hope is that such a system may one help restore communication and movement in people with paralysis due to injury or illness. Image credit: BrainGate.org.

Brain-Computer Interface Translates Brain Signals Associated with Handwriting into Text

May 17, 2021 by News Staff

Researchers with the BrainGate Collaboration have deciphered the brain activity associated with handwriting: working with a 65-year-old (at the time of...

Chen et al. established the world’s first integrated quantum communication network, combining over 700 optical fibers on the ground with two ground-to-satellite links to achieve quantum key distribution over a total distance of 4,600 km for users across China. Image credit: University of Science and Technology of China.

Chinese Scientists Create Integrated Quantum Communication Network

Jan 7, 2021 by News Staff

A team of researchers in China has demonstrated an integrated space-to-ground quantum communication network that combines a large-scale fiber network of...

Aspyn Palatnick holding the world’s first mobile genetics laboratory at Cold Spring Harbor Laboratory’s 125th anniversary Open House. Image credit: Cold Spring Harbor Laboratory.

Researchers Develop Handheld DNA Sequencer

Dec 8, 2020 by News Staff

By pairing a new app called iGenomics with a handheld DNA sequencer, users can easily align and analyze relatively small genomes, like those of viral pathogens. Aspyn...

Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Image credit: NIAID.

Artificial Intelligence Identifies Potential Anti-COVID-19 Drugs

Mar 30, 2020 by News Staff

Scientists from Gero Pte. Ltd., Singapore, have used a deep neural network to search for host-target acting antivirals among experimental and approved...

Scientists Using Supercomputer to Build All-Atom Model of SARS-CoV-2 Coronavirus Envelope

Mar 24, 2020 by News Staff

Using the NSF-funded Frontera supercomputer at the University of Texas at Austin’s Texas Advanced Computing Center (TACC), researchers are preparing...

3D render of the semiconductor nanostructure. Image credit: Hermann Edlbauer.

Researchers Control Quantum State of Single Electron Using High-Frequency Sound Waves

Oct 15, 2019 by News Staff

An international team of scientists sent high-frequency sound waves across a modified semiconductor device to direct the behavior of a single electron,...

Men are typically described by words that refer to behavior, while adjectives ascribed to women tend to be associated with physical appearance. Image credit: StockSnap.

In Literature, Women are Beautiful and Sexy, Men are Rational and Brave

Sep 3, 2019 by News Staff

University of Copenhagen researcher Isabelle Augenstein and colleagues trawled through 3.5 million fiction and non-fiction books, all published in English...

The fastest people need about 50 moves to solve a Rubik’s cube. Image credit: Steve Zylius / University of California, Irvine.

DeepCubeA: New Deep Learning Algorithm Solves Rubik’s Cube Much Faster than Humans

Jul 18, 2019 by News Staff

DeepCubeA, a deep reinforcement learning algorithm created by a team of scientists at the University of California, Irvine, can find the solution for the...

Device structure: (a) schematic of the processed device with control gate (CG), source (S) and drain (D) contacts (gold); the red spheres represent stored charge in the floating gate (FG); (b) details of the layer structure within the device. In both (a, b) InAs is colored blue, AlSb gray and GaSb dark red. Image credit: Tizno et al, doi: 10.1038/s41598-019-45370-1.

New Type of Computer Memory Invented

Jun 21, 2019 by News Staff

An oxide-free, floating-gate memory cell invented and patented by Lancaster University researchers promises to transform daily life with its ultra-low...

Mice and rats have a rich repertoire of around 20 kinds of calls. Image credit: Alice Gray.

DeepSqueak: Deep Learning-Based System Decodes Rodent Chatter

Feb 21, 2019 by News Staff

Deep learning has recently revolutionized the field of machine hearing and vision, by allowing computers to perform human-like activities including seeing,...

Photons emitted near rotating black holes encode quantum information that can be measured by actual quantum information technology. Image credit: Sci-News.com.

Spacetime Geometry near Rotating Black Holes Acts Like Quantum Computer, Physicist Says

Jan 15, 2019 by News Staff

According to a theoretical paper published in the Annals of Physics, by Dr. Ovidiu Racorean from the General Direction of Information Technology in Bucharest,...

Physarum polycephalum on an oak log. Image credit: Mushroom Observer / CC BY-SA 3.0.

Slime Mold Can Solve Exponentially Complicated Problems in Linear Time

Dec 26, 2018 by Sam Sander Effron

Researchers from Lanzhou University in China have shown that the slime mold Physarum polycephalum is able to solve the Traveling Salesman Problem, a combinatorial...

Photograph of the 5,000th sunrise over Mars captured by NASA’s Opportunity rover. Image credit: NASA.

Researchers Capture Sound of Martian Sunrise

Nov 9, 2018 by News Staff

A team of researchers from Anglia Ruskin University and the University of Exeter, UK, has created the soundtrack of the Martian sunrise captured by NASA’s...

Chandrasekhar et al invented a proof-of-concept blood pressure app that can give accurate readings using an iPhone. Image credit: Michigan State University.

New Smartphone App Accurately Measures Blood Pressure from Fingertip

Sep 11, 2018 by News Staff

A team of researchers at Michigan State University has developed an iPhone X app that measures blood pressure via the ‘oscillometric finger pressing...

A chip designed to operate as a 128-qubit superconducting adiabatic quantum optimization processor. Image credit: D-Wave Systems, Inc.

Physicists Demonstrate ‘Teleportation’ of Quantum Gate between Two Qubits

Sep 6, 2018 by News Staff

A team of scientists at Yale University has experimentally demonstrated one of the key steps in building the architecture for quantum computers —...

Schematic view of a large-scale quantum processor based upon phosphorus (31P) donors in silicon, operated and coupled through the use of an induced electric dipole. Idle qubits have electrons at the interface, leaving the 31P nucleus in the ultra-coherent ionized state. Electrons are partially shifted toward the donor for quantum operations. The sketch shows a possible architecture where a cluster of qubits is locally coupled via the electric dipole, and a subgroup thereof is further coupled to another cluster through interaction with a shared microwave cavity (aqua). Image credit: Guilherme Tosi, University of New South Wales.

Researchers Invent New Architecture for Quantum Computing

Sep 7, 2017 by News Staff

A new architecture, based on so-called ‘flip-flop’ qubits, allows for a silicon quantum processor that can be scaled up without the precise placement...

Scheme of a waveguide-integrated plasmonic nanoantenna for mode-selective polarization (de)multiplexing. The device couples light of orthogonal polarizations into different directions and modes of the underlying silicon waveguide. Image credit: Guo et al, doi: 10.1126/sciadv.1700007.

Optical Nanoantenna Promises Ultra-Fast Graphics on Gaming Consoles, PCs

Jul 20, 2017 by News Staff

A group of researchers from the Australian National University (ANU) and elsewhere has designed a nanoantenna — a device which is 100 times thinner...

The battery-free phone can sense speech, actuate the earphones, and switch between uplink and downlink communications, all in real time. It is powered by either ambient radio signals or light. Image credit: Mark Stone, University of Washington.

First Battery-Free Cellphone Harvests Power from Ambient Radio Signals, Light

Jul 14, 2017 by News Staff

A team of computer scientists and electrical engineers at the University of Washington has invented a cellphone that requires no batteries and harvests...

Example applications for on-body communication using the fingerprint sensors on smartphones. The smartphone can securely send information to doorknobs or glucose sensors over the body. Image credit: Vikram Iyer / University of Washington.

Scientists Find Way to Send Passwords via Human Body

Oct 3, 2016 by News Staff

A new technique devised by a team of researchers at the University of Washington leverages the signals already generated by fingerprint sensors on smartphones...

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