A research team, led by Assistant Professor Desmond Loke from the Singapore University of Technology and Design (SUTD), has developed a new type of artificial synapse based on two-dimensional (2D) materials for highly scalable brain-inspired computing.
Brain-inspired computing, which mimics how the human brain functions, has drawn significant scientific attention because of its uses in artificial intelligence functions and low energy consumption. For brain-inspired computing to work, synapses remembering the connections between two neurons are necessary, like human brains.
In developing brains, synapses can be grouped into functional synapses and silent synapses. For functional synapses, the synapses are active, while for silent synapses, the synapses are inactive under normal conditions. And, when silent synapses are activated, they can help to optimize the connections between neurons. However, as artificial synapses built on digital circuits typically occupy large spaces, there are usually limitations in terms of hardware efficiency and costs. As the human brain contains about a hundred trillion synapses, it is necessary to improve the hardware cost in order to apply it to smart portable devices and internet-of things (IoTs).
Researchers at an Abu Dhabi university revealed details about a set of vulnerabilities in the information transfer mechanism that underlies modern telephone networks. According to the report, threat actors can exploit these flaws to deploy denial of service (DoS) and Man-in-The-Middle (MiTM) attacks using a few pieces of hardware.
Experts Evangelos Bitsikas and Christina Pöpper mention that these failures can occur in all kinds of scenarios as long as some general conditions are met. In addition, the problems lie in all generations of network infrastructure, from 2G to 5G.
Handover is the fundamental mechanism in any modern cellular network implementation, and is described as the process of transferring a subscriber during a call or data transfer session from one base station to another. Handover plays a critical role in establishing cellular communications, especially when the user is on the move.
Dubbed as the internet of tomorrow, Web 3.0 seems to be the next big thing that’s going to change our lives by fundamentally reshaping the internet.
Web 3.0 is an upgrade to the Web, a meta technology for business software, a social movement for open data, and a new generation for artificial intelligence.
Large corporations are usually getting hacked, resulting in the exposure of millions of user data, and a McKinsey report from last year shows that almost all industries have got a trust rate of less than 50 percent.
But the new generation of the web, Web 3.0, could solve some privacy concerns as it features the internet on blockchain technology. Storing any data on blockchain makes that data decentralized, making the company’s data usage transparent, thus protecting it from breaches. However, returning the ownership of their data back to consumers could potentially disrupt the tech industry since tech giants would eventually lose access to the data that initially gave them a boost in an already competitive market.
He has done his math. The questions seem to be: How to put together viable payloads to make use of Stsrship launches? How to build new markets in space?
This again?! Game Over? Busted? We’re doing Starship again so soon because I’m an unoriginal hack. There’s also been new developments in Starship and I think it’s a perfect time to revisit the launch system. Get as mad as you wish.
Will Starship live up to expectations? Will it really revolutionize space travel? Is Mars and beyond finally within grasp? Why are Musk’s fans so strangely devoted to him? Will I stop asking dumb questions?
Corrections, Clarifications, and Notes.
1. Jesus Christ I forgot about Dear Moon again. It’s clear that Starship probably won’t be human-rated by NASA by 2023. The FAA, if I remember correctly, doesn’t regulate commercial crew vehicles (like airplanes) yet. You could always do a Crew Dragon to Starship for that or something along those lines. I’d anticipate Dear Moon being pushed or somehow incorporated into an HLS demonstration.
2. I’m not bringing up the early test program this time around. SpaceX has clearly gotten better at building tanks (though I suspect Starhopper was mostly a publicity stunt).
3. I didn’t include government launch contracts because those end up more expensive than commercial payloads due to more stringent requirements and specialized missions.
4. I didn’t talk about SpaceX finances since they’re private information. The Morgan Stanley valuation was made by people who I’d argue don’t know anything about the launch market. Their assessment is nonsensical. Also, I doubt SpaceX is making much money as a commercial launch provider—the launch side of the space industry is small; if it weren’t for Starship and Starlink, they might. It also appears that SpaceX is adept at burning cash, considering all the fundraising they do. It’s hard to say without industrial espionage.
Aging is a highly complex process with thousands of genes influencing our health, which poses a challenge for researchers looking to explain and target the underlying processes that lead to declining health. Researchers from the Babraham Institute’s Epigenetics research program have published a map of genetic interactions in C. elegans in iScience which can be used to identify new genes that influence lifespan and that have equivalent genes in humans.
Researchers use simple model organisms like the nematode worm C. elegans to gather information that can inform studies on human aging because many genes are shared or have counterparts in other species. However, there are some conceptual and technical challenges that apply to the study of aging in model organisms. Dr. Casanueva, Group leader in the Epigenetics research program explains: “The way researchers usually study gene function is by disrupting its function and observing what happens. The disruption of some genes causes worms to live a very long-life. In this way, researchers have found the so-called ‘longevity-pathways.” However, the complexity underlying aging means that it is not enough to focus on individual genes. We need to study the overall organization of longevity by generating a systems-wide view.”
In collaboration with the physicist Marta Sales Pardo at University of Rovira i Virgili, Dr. Casanueva and her lab set out to cast a wider net when it comes to studying longevity genes. Together they created the largest network of gene regulatory interactions that are found in a long-lived type of C. elegans. In this network, the relationships between genes are represented by lines, and represented in different layers based on the flow of information between genes. The middle of the web represents the genes with the most influence, in this case, they receive complex input signals and de-code them, and connect to an output layer of genes. The researchers found that most key genes for longevity belong to transcription factors and metabolic genes.
An international team of experts has collected data on metal halide perovskite solar cells from more than 15,000 publications and developed a database with visualization options and analysis tools. The database is open source and provides an overview of the rapidly growing knowledge as well as the open questions in this exciting class of materials. The study was initiated by HZB scientist Dr. Eva Unger and implemented and coordinated by her postdoc Jesper Jacobsson.
Halide perovskites have huge potential for solar cells and other optoelectronic applications. Solar cells based on metal-organic perovskites achieve efficiencies of more than 25 percent, they can be produced cheaply and with minimal energy consumption, but still require improvements in terms of stability and reliability. In recent years, research on this class of materials has boomed, producing a flood of results that is almost impossible to keep track of by traditional means. Under the keyword “perovskite solar,” more than 19,000 publications had already been entered in the Web of Science (spring 2021).
Now, 95 experts from more than 30 international research institutions have designed a database to systematically record findings on perovskite semiconductors. The data are prepared according to the FAIR principles, i.e. they are findable, accessible, interoperable and reusable. By reading the existing literature, the experts have collected more than 42,000 individual data sets, in which the data can be filtered and displayed according to various criteria such as material compositions or component type. Researchers from several teams at HZB were involved in this Herculean task.
Cybersecurity researchers have demonstrated a new attack technique that makes it possible to leverage a device’s Bluetooth component to directly extract network passwords and manipulate traffic on a Wi-Fi chip, putting billions of electronic devices at risk of stealthy attacks.
The novel attacks work against the so-called “combo chips,” which are specialized chips that are equipped to handle different types of radio wave-based wireless communications, such as Wi-Fi, Bluetooth, and LTE.
“We provide empirical evidence that coexistence, i.e., the coordination of cross-technology wireless transmissions, is an unexplored attack surface,” a group of researchers from the Technical University of Darmstadt’s Secure Mobile Networking Lab and the University of Brescia said in a new paper.