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posted by janrinok on Tuesday March 08 2022, @11:09PM   Printer-friendly

ICANN won't revoke Russian Internet domains, says effect would be "devastating":

Ukraine's request to cut Russia off from core parts of the Internet has been rejected by the nonprofit group that oversees the Internet's Domain Name System (DNS). CEO Göran Marby of ICANN (Internet Corporation for Assigned Names and Numbers) said the group must "maintain neutrality and act in support of the global Internet."

"Our mission does not extend to taking punitive actions, issuing sanctions, or restricting access against segments of the Internet—regardless of the provocations," Marby wrote in his response to Ukraine Vice Prime Minister Mykhailo Fedorov. "ICANN applies its policies consistently and in alignment with documented processes. To make unilateral changes would erode trust in the multi-stakeholder model and the policies designed to sustain global Internet interoperability."

Ukraine on Monday asked ICANN to revoke Russian top-level domains such as .ru, .рф, and .su; to "contribute to the revoking for SSL certificates" of those domains; and to shut down DNS root servers in Russia. Fedorov argued that the requested "measures will help users seek for reliable information in alternative domain zones, preventing propaganda and disinformation."

ICANN was "built to ensure the Internet works"


Original Submission

posted by janrinok on Tuesday March 08 2022, @08:19PM   Printer-friendly

Superoxides for Oxygen Farming on the Moon and Mars:

The dusty faces of the Moon and Mars conceal unseen hazards for future explorers. Areas of highly oxidizing material could be sufficiently reactive that they would produce chemical burns on astronauts' unprotected skin or lungs. Taking inspiration from a pioneering search for Martian life, a Greek team is developing a device to detect these 'reactive oxygen species' – as well as harvest sufficient oxygen from them to keep astronauts breathing indefinitely.

The US Viking landers that touched down on Mars in 1976 carried experiments looking for Martian life whose results are still debated more than four decades later.

Viking's 'Labeled Release' experiment applied micro-nutrient liquid to a Martian soil sample, which released copious amounts of oxygen in response. Some authorities interpreted this result as evidence of microbial life on Mars – except that even after the sample was sterilized with 160°C heat this oxygen production continued. Meanwhile other Viking experiments found no traces of organic chemicals.

"The leading interpretation today is that the results were due to an abiotic chemical reaction," notes Prof. Elias Chatzitheodoridis of the Geological Sciences Department of the National Technical University of Athens.

"The oxygen production was caused by a reactive oxygen species reacting with water in the nutrient liquid," notes Prof. Christos Georgiou of the Biology Department at the University of Patras. "Such reactive species may originate from metal salts of superoxides, peroxides, or perchlorates – the latter of which was indeed detected by NASA's Mars Phoenix lander in the Martian Arctic in 2008.

"Charting such highly reactive species will be important for Martian and lunar settlers, not only because their presence will be inimical to human settlement and crop growth but also because they will erase any trace of possible Martian bio-fossils, so these areas can be ruled out of the search for life on Mars."


Original Submission

posted by janrinok on Tuesday March 08 2022, @06:21PM   Printer-friendly

California pilot program turns GM's EVs into roving battery packs:

[...] California's power grid has seen its fair share of brownouts, rolling blackouts, and power outages caused by wildfires caused by PG&E. To help mitigate the economic impact of those disruptions, this summer General Motors and Northern California's energy provider will team up to test out using the automaker's electric vehicles as roving, backup battery packs for the state's power grid.

The pilot program announced by GM CEO Mary Barra on CNBC Tuesday morning is premised on birectional charging technology, wherein power can both flow from the grid to a vehicle (G2V charging) and from a vehicle back to the grid (V2G), allowing the vehicle to act as an on-demand power source. GM plans to offer this capability as part of its Ultium battery platform on more than a million of its EVs by 2025. Currently the Nissan Leaf and the Nissan e-NV200 offer V2G charging, though Volkswagen announced in 2021 that its ID line will offer it later this year and the the Ford F-150 Lightning will as well.

This summer's pilot will initially investigate, "the use of bidirectional hardware coupled with software-defined communications protocols that will enable power to flow from a charged EV into a customer's home, automatically coordinating between the EV, home and PG&E's electric supply," according to a statement from the companies. Should the initial tests prove fruitful, the program will expand first to a small group of PG&E customers before scaling up to "larger customer trials" by the end of 2022.

The length of time that an EV will be able to run the household it's tethered to will depend on a number of factors — from the size of the vehicle's battery to the home's power consumption to the prevailing weather — but August estimates that for an average California home using 20 kWh daily, a fully-charged Chevy Bolt would have enough juice to power the house for around 3 days. This pilot program comes as automakers and utilities alike work out how to most effectively respond to the state's recent directive banning the sale of internal combustion vehicles starting in 2035.


Original Submission

posted by janrinok on Tuesday March 08 2022, @02:48PM   Printer-friendly
from the e-waste-generation? dept.

Many businesses are throwing away IT equipment before end-of-life:

Many businesses tend not to repair broken hardware, and instead throw it away, even before it reaches end-of-life. These are the findings of a new report from Euro PC which hints that the practice means additional unnecessary expenses.

Surveying 1,200 UK business owners for the report, Euro PC discovered that just a quarter (26%) have a refurbishment partner that fixes broken gear for them. The rest just throw it away.

Drilling deeper, the company found roughly two-thirds (59%) of firms are throwing away IT gear before it reaches end-of-life, while 54% swap out their endpoints every three to five years, on average

The main reasons why they replace their endpoints "so often" include improving speed, increasing reliability, and boosting their security. In fact, many business owners don't believe refurbished gear can be fast, reliable, and secure, and would use it more if they knew otherwise.

In fact, a third said they "naturally" assumed refurbished IT gear would be riskier, while almost four-fifths said they would happily use them if they could achieve the same performance and security as with new gear.

The majority of surveyed business owners said they threw away laptops (87%). However, servers (76%), routers (63%), and monitors (59%) were also high on the list, with desktops (48%) being the only type of endpoint being thrown away too often by less than half of the respondents.


Original Submission

posted by janrinok on Tuesday March 08 2022, @12:02PM   Printer-friendly
from the the-cost-plus-department dept.

Eric Berger reports ("Finally, we know production costs for SLS and Orion, and they're wild", Ars Technica):

NASA Inspector General Paul Martin serves as an independent watchdog for the space agency's myriad activities. For nearly the entirety of his time as inspector general, since his appointment in 2009, Martin has tracked NASA's development of the Space Launch System rocket and Orion spacecraft. Although his office has issued a dozen reports or so on various aspects of these programs, he has never succinctly stated his thoughts about the programs—until Tuesday.

Appearing before a House Science Committee hearing on NASA's Artemis program [Wikipedia description], Martin revealed the operational costs of the big rocket and spacecraft for the first time. Moreover, he took aim at NASA and particularly its large aerospace contractors for their "very poor" performance in developing these vehicles.

Martin said that the operational costs alone for a single Artemis launch—for just the rocket, Orion spacecraft, and ground systems—will total $4.1 billion. This is, he said, "a price tag that strikes us as unsustainable." With this comment, Martin essentially threw down his gauntlet and said NASA cannot have a meaningful exploration program based around SLS and Orion at this cost.

In his testimony to the Committee, IG Martin states:

Our broad, years-long oversight has identified several interrelated challenges NASA must address to achieve its ambitious Artemis goals, including unsustainable costs, a lack of transparency into funding requirements, and risks associated with its modified program management and acquisition practices designed to reduce costs and accelerate the mission schedule.

On the first point:

  • $53 billion on the Artemis program between fiscal years (FY) 2021 and 2025 [budgeted – Martin provides further argument that this cost is deeply discounted]
  • $4.1 billion per-launch cost of the SLS/Orion system for at least the first four Artemis missions
  • Multiple factors contribute to the high cost of Exploration Systems Development (ESD) Division programs—SLS, Orion, and Exploration Ground Systems—including the use of sole-source, cost-plus contracts; the inability to definitize key contract terms in a timely manner; and the fact that except for the Orion capsule, its subsystems, and supporting launch facilities, all components are expendable and "single use" unlike emerging commercial space flight systems.

Note the mention of cost-plus contracts which deeply favor contractors who procrastinate and deliberately incur costs to milk the contract. While this was the only time that was mentioned in the testimony, the continued, widespread use of these contracts indicates the fundamental frivolity of NASA's efforts here.

On the second point:

  • In particular, NASA does not have a comprehensive and accurate estimate that accounts for all Artemis program-related costs. Because NASA has not defined Artemis as a formal program under the Agency's Space Flight Program and Project Management Requirements, an Artemis-wide full life-cycle cost estimate is not required. Instead, NASA's disparate programs and projects individually submit budget estimates through their divisions and directorates to the Office of the Chief Financial Officer.
  • When aggregating all relevant costs across Mission Directorates, we projected NASA will spend $93 billion on the Artemis effort from FY 2012 through FY 2025

In other words, due to lack of a collective estimate of costs associated with SLS, Orion, and other aspects of the Artemis program, Martin's office estimated that costs should be almost double what is officially forecast. There is a lot of hidden iceberg to these cost estimates that would be in the open with an effort to account for them. As Berger noted in the Ars Technica article, this also should means that the $4 billion per launch estimate should be almost doubled as well.

On the third point, here's an example from SLS:

Notably, in our review of SLS Program cost reporting we found that the Program exceeded its Agency Baseline Commitment (ABC)—that is, the cost and schedule baselines committed to Congress against which a program is measured—by at least 33 percent at the end of FY 2019. This was due to cost increases tied to development of Artemis I and a December 2017 replan that removed almost $1 billion of costs from the Program's ABC without lowering the baseline, thereby masking the impact of Artemis I's projected 19-month schedule delay. NASA subsequently notified Congress of its adjusted baseline that reflected both the cost increase —projected to reach 43 percent by November 2021—and the removal of costs identified by our office.

We projected NASA would have spent more than $17 billion on the SLS Program by the end of FY 2020, including almost $6 billion not tracked or reported as part of the ABC. Each of the major element contracts for building the SLS for Artemis I—Stages, Interim Cryogenic Propulsion Stage, Boosters, and RS-25 Engines—have experienced technical challenges, performance issues, and requirement changes that collectively have resulted in $2 billion of cost overruns and increases and at least 2 years of schedule delays. We reported in October 2018 that Core Stage production was the primary factor contributing to overall SLS launch delays due to its position on the critical path and corresponding management, technical, and infrastructure issues driven mostly by The Boeing Company's poor performance.

In other words, this process which was supposed to reduce cost has the opposite effect with significant schedule slippage and cost overruns.

One important aspect of this funding is that $93 billion is not only roughly four straight years of NASA funding, it's a huge number of potential launches on existing launch vehicles. For example, a couple months back, I found an estimate of how much NASA spent on launches (and other stuff like uncrewed cargo vehicles and crewed vehicles to ISS). It was roughly $82 million per launch for 39 launches (I made the erroneous calculation of $170 million per at the time). So that $93 billion of costs could have bought over a thousand Falcon 9 launches today. So instead of a vast amount of space activity, we're getting token progress towards some lunar missions.

Eric Berger noted at the conclusion of his article that congressional members seemed more interested in curbing NASA's use of cheap commercial launch technology than in fixing the mess:

Lest anyone doubt this, House Science Committee Chair Eddie Bernice Johnson (D-Texas) took aim at NASA's commercial space efforts in her opening statement at the hearing. The context of her statement concerns NASA's desire to purchase commercial services for spaceflight in the future rather than oversee their development in-house like it did with SLS and Orion.

"I find the sum of these actions to be very troubling," Johnson said. "And it raises the question of whether NASA will even retain the capabilities and workforce within the agency that will be needed to get US astronauts to Mars if all of these privatization plans are realized."

At least it answers the question of where congressional priorities lie.


Original Submission

posted by janrinok on Tuesday March 08 2022, @09:17AM   Printer-friendly

Cannabinoids From Amoebae: New Process for the Production of Active THC Compounds:

Polyketides are natural products with a wide range of therapeutic applications. Among them are dietary supplements, various antibiotics such as erythromycin, and one of the key cannabinoid precursors: Olivetolic acid. It is needed for the synthesis of tetrahydrocannabinol (THC). The medical use of this psychoactive substance is being intensely researched, and it is already being used to provide relief for patients with neurological diseases and pain, among other things.

THC is a natural ingredient in the cannabis plant. "However, isolating THC in its pure form from the abundance of substances is very complex," says Falk Hillmann, head of the junior research group "Evolution of Microbial Interactions" at Leibniz-HKI and coleader of the study. Chemical synthesis of THC on the other hand is expensive and the yield is low. That's why he and a team are researching how such plant substances can be efficiently produced biotechnologically.

"So far, bacteria such as Escherichia coli or the yeast Saccharomyces cerevisiae are mainly used, but neither of them are native producers of natural products," explains Vito Valiante, head of the cooperating junior research group "Biobricks of Microbial Natural Product Syntheses" at the Leibniz-HKI. Accordingly, a large number of genetic modifications is necessary to enable synthesis in these classic model organisms. The research team is thus looking for alternatives.

One promising candidate is the amoeba Dictyostelium discoideum, which already possesses numerous biosynthetic genes for the production of natural products such as polyketides. "Taking a closer look at the genes, we noticed that some show a high similarity to plant biosynthetic genes," said first author Christin Reimer, who is working on the topic for her PhD.

To test how well D. discoideum is suited as a chassis organism for biotechnological production, the researchers first had the amoeba produce the food supplement resveratrol, also a polyketide. Afterward they incorporated the plant enzyme that produces the THC precursor olivetolic acid into the amoeba's genome. However, the addition of chemical precursors was still necessary to enable the synthesis.

Journal Reference:
Christin Reimer, Johann E. Kufs, Julia Rautschek, et al. Engineering the amoeba Dictyostelium discoideum for biosynthesis of a cannabinoid precursor and other polyketides, Nature Biotechnology (DOI: 10.1038/s41587-021-01143-8)


Original Submission

posted by martyb on Tuesday March 08 2022, @06:33AM   Printer-friendly

The suspicion becomes real: hackers can take control of Alexa and listen to you:

This is a novel method of taking control of a person's Echo speaker. "An attacker could then use this listening function to set up a social engineering scenario where the skill pretends to be Alexa and responds to user statements as if it were Alexa," vulnerability researcher Sergio Esposito told The Register.

Amazon has already patched most of the vulnerabilities, except for one in which a Bluetooth-paired device was able to play audio files created through a vulnerable Amazon Echo speaker, Esposito confirmed. A vulnerability tracked as CVE-2022-25809 which has been assigned a Medium severity level .

Paper (pdf) at arxiv.org.

YouTube video demonstrating an attack.

See also: Ars Technica.


Original Submission

posted by martyb on Tuesday March 08 2022, @03:47AM   Printer-friendly

Oil price surges to highest since 2008 on delays in Iranian talks:

Oil prices soared to their highest since 2008 due to delays in the potential return of Iranian crude to global markets and as the United States and European allies consider banning imports of Russian oil.

Talks to revive Iran's 2015 nuclear deal with world powers were mired in uncertainty on Sunday following Russia's demands for a US guarantee that the sanctions it faces over the Ukraine conflict will not hurt its trade with Tehran. China has also raised new demands, according to sources.

In response to Russia's demands, US Secretary of State Antony Blinken said on Sunday that the sanctions imposed on Russia over its Ukraine invasion have nothing to do with a potential nuclear deal with Iran.

The United States and European allies, meanwhile, are exploring banning imports of Russian oil, Blinken said on Sunday, and the White House coordinated with key Congressional committees moving forward with their own ban.

Brent LCOc1 rose $11.67, or 9.9%, to $129.78 a barrel by 6:50 p.m. EST (2350 GMT), while US West Texas Intermediate (WTI) crude CLc1 rose $10.83, or 9.4%, to $126.51, putting both contracts on track for their highest daily percentage gains since May 2020.

In the first few minutes of trade on Sunday, both benchmarks rose to their highest since July 2008 with Brent at $139.13 a barrel and WTI at $130.50.

Both contracts hit their highest in July 2008 with Brent at $147.50 a barrel and WTI at $147.27.

[...] Analysts from JP Morgan said this week oil could soar to $185 per barrel this year.

"The idea was not to sanction oil and gas because of their essential nature, but oil is getting sanctioned by private actors not wanting to pick it up or ports not wanting to receive it and the longer this goes on the more supply chains are going to buckle," said Daniel Yergin, author and vice chairman of S&P Global ahead of the CERAWeek conference in Houston.


Original Submission

posted by martyb on Tuesday March 08 2022, @01:01AM   Printer-friendly

Ice-Free in Icy Worlds: Discovery Could Lead to Ice-Free Bionic Surfaces:

Antarctic waters have conditions in which objects and living creatures can freeze even under water. This is a major problem for marine travel in polar regions. So-called supercooled water has a temperature just below the freezing point. Due to the high salt content, water in Antarctica has a freezing point of about -1.9 °C, but is about 0.05 °C colder. The smallest disturbances such as grains of sand or surfaces can cause this supercooled water to freeze – with sometimes fatal consequences for creatures that cannot survive frozen.

The Antarctic scallop "Adamussium colbecki" resists this, as chemist Konrad Meister knows. Meister is a professor at the University of Alaska and heads a research group in Mischa Bonn's department at the Max Planck Institute for Polymer Research (MPI-P) in Mainz. During an expedition in Antarctica, divers drew his attention to the scallop with the efficient ice protection mechanism. "Our divers reported that they had never observed large-scale ice on the surface of this native scallop species," Meister says.

[...] The microscope reveals small ridges that run in a radiating pattern on their shell. These ridges ensure that water freezes preferentially there. If the freezing process continues, a continuous layer of ice forms, resting only on the ridges. Due to the low adhesion between ice and shell, the smallest underwater flow can therefore wash off the ice again and the scallop does not freeze.

[...] "It is exciting how evolution has obviously given this scallop an advantage," says Konrad Meister. "New technological applications based on the principle of bionics are conceivable from the knowledge of the ice-free shell. For example, non-icing surfaces could be highly interesting for polar shipping."

Journal Reference:
William S. Y. Wong, Lukas Hauer, Paul A. Cziko, et al. Cryofouling avoidance in the Antarctic scallop Adamussium colbecki [open], Communications Biology (DOI: 10.1038/s42003-022-03023-6)


Original Submission

posted by janrinok on Monday March 07 2022, @10:13PM   Printer-friendly

Samsung responds to app-throttling discovery, promises to ship an off switch:

Samsung has responded to reports that it is throttling thousands of apps on the Galaxy line of smartphones.

With the launch of the Galaxy S22, users found the packed-in "Game Optimizing Service" contained a list of approximately 10,000 apps that were being throttled. This list is basically every popular, well-known app you can think of, covering everything from games to core Samsung apps like the home screen. The only apps the service seemingly didn't target were benchmark apps, which means benchmark ratings are inaccurately reporting how much power the most-used apps have access to. Modifying a benchmark app like Geekbench to be disguised as a normal app leads to CPU scores dropping as much as 46 percent. The new Galaxy S22 isn't the only smartphone with this throttling feature; it goes back as far as the Galaxy S10.

Samsung gave a statement to The Verge today, saying, "We value the feedback we receive about our products and after careful consideration, we plan to roll out a software update soon so users can control the performance while running game apps." The spokesperson continued, "The Game Optimizing Service (GOS) has been designed to help game apps achieve a great performance while managing device temperature effectively. GOS does not manage the performance of non-gaming apps."

[...] Samsung is at least promising to ship an off switch, but that part of its story doesn't make a ton of sense either. If this throttling was really needed in the first place, why is Samsung going to produce a patch that lets users turn it off? If Samsung used the battery life excuse, that is a variable where a user control feature would be a good idea. Sometimes you will need more battery life, and sometimes you're close to a charger and don't care. But a variable slider for heat is rather strange. Heat is either able to be dissipated or not, and is either damaging to the components or not. It's still hard to imagine why this code was written in the first place if it isn't just there to game benchmarks.


Original Submission

posted by janrinok on Monday March 07 2022, @07:38PM   Printer-friendly

More Beer in the Glass With Physics: How Water-Repellent Coatings Can Reduce Foaming:

Foam formation and a long lifetime of the foam is desired for beer in a glass, for example — but foam should be avoided in beer bottling in order to speed up the bottling process. Foam formation is also often undesirable in other industrial processes, especially if it leads to spillages and environmental contamination.

In foams, adjacent air bubbles are separated from each other by a thin film of liquid. To generate and stabilize the foam, surface-active substances such as surfactants, often lipids or proteins are added.

Many liquids, such as beer and soaps, contain such surface-active molecules which stabilize foam. To prevent foaming, additional chemicals must therefore be added, such as oils, waxes, or microparticles. These help neighboring air bubbles to fuse together quickly, causing foam to break down rapidly.

Scientists working with Doris Vollmer, group leader at the Max Planck Institute for Polymer Research in Hans-Jürgen Butt's department, have now investigated the effect of superamphiphobic surfaces on foam in more detail. These surfaces have a microscopic roughness and thus prevent liquids from adhering to them: The liquid sits on small columns of only a few micrometers — millionths of a meter — and a continuous film of air, similar to a fakir on a pinboard. This effect is known, for example, from the lotus leaf.

[...] According to the scientists, the coated glass surfaces could help speed up filling processes in the future without having to add additional substances.

Journal Reference:
William S. Y. Wong, Abhinav Naga, Lukas Hauer, et al. Super liquid repellent surfaces for anti-foaming and froth management [open], Nature Communications (DOI: 10.1038/s41467-021-25556-w)


Original Submission

posted by janrinok on Monday March 07 2022, @04:51PM   Printer-friendly

The rat problem in Washington, DC, is so bad, two people got hantavirus:

Many people might already think of the nation's capital as a political rat's nest, teeming with rat-related features, like underground networks and crowded backrooms where any faint smell of betrayal could send lawmakers scurrying. But Washington, DC, is also a den of literal rats. And it's creating a concerning risk of viral spillover for residents.

In a report released Thursday by the Centers for Disease Control and Prevention, DC health officials ratted out the first two known cases of hantavirus spillover in the city. The virus festers quietly in rats and other rodent populations, but in humans it can cause potentially deadly respiratory and hemorrhagic diseases. Humans pick up the infection by direct contact with rodent urine or nest dust or by breathing in aerosolized viral particles from urine, droppings, or saliva. There's also the possibility that the virus can spread from rat bites, but this is less common. Once in a human, the virus almost never jumps from human to human.

Fortunately for DC residents, the type of hantavirus found in the city is one of the milder types: an "Old World" hantavirus called the Seoul virus. Old World hantaviruses cause a disease called Hemorrhagic fever with renal syndrome. HFRS can start out like a generic infection with fever, chills, nausea, and headache. But it can progress to low blood pressure, acute shock, vascular leakage, and acute kidney failure, the CDC notes. The severity of HFRS varies by which hantavirus you catch, but fatality rates can reach up to 15 percent. The Seoul virus is one of the milder forms, with a fatality rate of only about 1 percent. As such, in both of the cases reported by DC health officials, the infected individuals recovered.

[...] The health officials concluded that the cases are an important reminder for doctors to consider hantavirus infections when diagnosing patients. The cases also highlight the dangers of living around rodents. They "serve as a reminder to the public to minimize risk for infection by following recommended hygiene practices," the officials wrote.


Original Submission

posted by janrinok on Monday March 07 2022, @02:06PM   Printer-friendly
from the where's-apple? dept.

New UCIe Chiplet Standard Supported by Intel, AMD, and Arm:

A broad range of industry stalwarts, like Intel, AMD, Arm, TSMC, and Samsung, among others, introduced the new Universal Chiplet Interconnect Express (UCIe) consortium today with the goal of standardizing die-to-die interconnects between chiplets with an open-source design, thus reducing costs and fostering a broader ecosystem of validated chiplets. In the end, the UCIe standard aims to be just as ubiquitous and universal as other connectivity standards, like USB, PCIe, and NVMe, while providing exceptional power and performance metrics for chiplet connections.

The benefits of chiplets, like reduced costs and using different types of process nodes in a single package, are well known and essential as chipmakers grapple with increasingly difficult scaling issues in the waning light of Moore's Law. The long-term vision for chiplets has always been for chipmakers to be able to develop their own types of specialized chiplets and then pair them with off-the-shelf chiplet designs from other companies, thus allowing them to build their own chips in Lego-like fashion to improve time to market while reducing costs.

However, the lack of a standardized connection between chiplets has led to a wide range of customized proprietary interconnects, so modern chiplets certainly aren't plug-and-play with other designs. Additionally, the industry has long suffered from a glaring lack of standardized validation and verification for chiplet designs and interconnects, making an off-the-shelf chiplet ecosystem impossible.

This new UCIe interconnect will enable a standardized connection between chiplets, like cores, memory, and I/O, that looks and operates similar to on-die connections while also enabling off-die connections to other componentry — the designs can even enable low enough latency and high enough bandwidth for rack-scale designs – and relies on existing protocols, like PCIe and CXL.

[...] Overall, the UCIe spec looks promising, but widespread support is critical. As we saw with the CXL spec that is now table stakes in the industry (will be supported by Intel Sapphire Rapids, AMD's EPYC Genoa, and Arm designs), the consortium comes to market with a list of blue-chip sponsors, and we expect this list to grow just as quickly as CXL.

Sponsors include AMD, Intel, Samsung, Arm, ASE, TSMC, Google, Meta, Microsoft, and Qualcomm. That's an impressive list that includes the top three foundries, which is important. Notably, Nvidia isn't currently participating and we see no signs of RISC-V, either.

The UCIe 1.0 specification is available now, and the consortium also has a website with a whitepaper and other resources.


Original Submission

posted by janrinok on Monday March 07 2022, @11:14AM   Printer-friendly

Detailed Supercomputer Simulation of the Universe Creates Structures Very Similar to the Milky Way:

In their pursuit of understanding cosmic evolution, scientists rely on a two-pronged approach. Using advanced instruments, astronomical surveys attempt to look farther and farther into space (and back in time) to study the earliest periods of the Universe. At the same time, scientists create simulations that attempt to model how the Universe has evolved based on our understanding of physics. When the two match, astrophysicists and cosmologists know they are on the right track!

In recent years, increasingly-detailed simulations have been made using increasingly sophisticated supercomputers, which have yielded increasingly accurate results. Recently, an international team of researchers led by the University of Helsinki conducted the most accurate simulations to date. Known as SIBELIUS-DARK, these simulations accurately predicted the evolution of our corner of the cosmos from the Big Bang to the present day.

[...] This simulation is the first study conducted as part of the "Simulations Beyond the Local Universe" (SIBELIUS) project and was performed using the DiRAC COSmology MAchine (COSMA), a distributed computer network operated by the ICC. The simulation covers a volume of space up to a distance of 600 million light-years from Earth and is represented by over 130 billion simulated 'particles', which required thousands of computers several weeks to produce.

The team used known physics to describe how Dark Matter and cosmic gas evolved during the history of the Universe. Specifically, they sought to determine if what we observe today is consistent with the standard model of cosmology – the Cold Dark Matter (CDM) model. For the past few decades, astrophysicists have used this model to explain the properties of the Cosmic Microwave Background (CMB) to the number and spatial distribution of the galaxies we see today.

[...] Dr. Stuart McAlpine, a former Ph.D. student at Durham and a current postdoctoral researcher at the University of Helsinki, added: "By simulating our Universe, as we see it, we are one step closer to understanding the nature of our cosmos. This project provides an important bridge between decades of theory and astronomical observations."

Journal Reference:
Stuart McAlpine, John C Helly, Matthieu Schaller, et al. SIBELIUS-DARK: a galaxy catalogue of the Local Volume from a constrained realisation simulation, Monthly Notices of the Royal Astronomical Society (DOI: 10.1093/mnras/stac295)


Original Submission

posted by janrinok on Monday March 07 2022, @08:34AM   Printer-friendly

NASA finds each state has its own climatic threshold for flu outbreaks:

What triggers an outbreak of the influenza virus? A new study of the flu in the 48 contiguous U.S. states, using data from the Atmospheric Infrared Sounder (AIRS) on NASA's Aqua satellite, has found that the answer is closely tied to local weather—specifically, to low humidity—and varies from state to state.

Average humidity varies widely across the United States, but even in the most humid states, it begins to drop as winter approaches. Researchers at NASA's Jet Propulsion Laboratory in Southern California and the University of Southern California correlated AIRS measurements of water vapor in the lower atmosphere with flu case estimates for each week from 2003 to 2015. The researchers found that in each state, there is a specific level of low humidity that may signal a flu outbreak is imminent. When this threshold is crossed each year, a large increase in flu cases follows within two or three weeks, on average.

Journal Reference:
E. Serman, H. Th. Thrastarson, M. Franklin, J. Teixeira. Spatial Variation in Humidity and the Onset of Seasonal Influenza Across the Contiguous United States GeoHealth Volume 6, Issue 2 (DOI: 10.1029/2021GH000469)


Original Submission