The new switches stay off, saving battery life for other processes, unless they are actively helping a device jump between networks.
"The switch we have developed is more than 50 times more energy efficient compared to what is used today," said Deji Akinwande, a professor in the Cockrell School of Engineering's Department of Electrical and Computer Engineering who led the research.
Researchers at the University of Texas at Austin and the University of Lille in France have built a new component that will more efficiently allow access to the highest 5G frequencies in a way that increases devices' battery life, and speeds up features like streaming of 4K video.
New 5G switches bring better battery life, higher bandwidth and speeds As 5G hits the market, new U.S. Army-funded research has developed a radio-frequency switch that is over 50 times more energy efficient than what is used today.
Satellite systems, smart radios, reconfigurable communications, the Internet of Things (IOT) and defence technology are examples of other potential switches are pervasive in military communication, connectivity and radar systems," said Dr. Pani Varanasi, Materials Science Division Chief at the U.S. Army Research Office, part of the U.S. Army Combat Capabilities Development Command, which helped fund the project.
Mattsson is a co-author of one of the few studies that look at how well fitness trackers work on a diverse group of people of different ages, weights, heights, skin tones, and fitness levels.
While the devices are pretty good during repetitive, stable, moderately intense activities like riding a stationary bike, studies show they can get heart rate wrong even during other relatively controlled activities, like using an elliptical machine with arm levers, and that no wrist-worn sensors are as accurate as chest-strap monitors.
Another study found that heart rate monitors on wrist-worn fitness trackers, especially the Apple Watch, perform pretty well in controlled environments in studies.
Accelerometers use electromagnetic sensors to pick up on motion, and the fitness trackers interpret that information using an algorithm that trains the devices to recognize what counts as a step.
Another recent study tested four trackers—the Apple Watch Series 4, Polar Vantage V, Garmin Fenix 5, and Fitbit Versa—and concluded that while the Apple Watch and the Polar Vantage V did pretty well at measuring heart rate, none of the four should be used to monitor energy expenditure at the levels tested, which ranged from sitting to sprinting.
But some new materials, recently investigated by researchers at the U.S. Department of Energy's (DOE) Argonne National Laboratory, show an intriguing propensity to sometimes behave like water and sometimes like salt, giving them interesting transport properties and holding potential promise for applications like mixing and delivery in the pharmaceutical industry.
These so-called active materials contain small magnetic particles that self-organize into short chains of particles, or spinners, and form a lattice-like structure when a magnetic field is applied.
Unlike in previous experiments involving active materials, which looked at particles that demonstrated linear motion, these new spinners acquire a handedness -- like right- or left-handedness -- that causes them to rotate in a specific direction.
As the particles start to come together, the whirlpools created by the spinning motion -- in conjunction with the magnetic interactions -- pull them even closer, creating a fixed crystalline-like material, even as the spinners still rotate.
According to Snezhko, the rapid whirling of the spinners creates the ability for these other cargo particles to move through the lattice much more quickly than they would through a normal material.
The Masters’s student has been selected for international training at the European Organization for Nuclear Research in Switzerland, where she will be working in the world’s largest particle physics laboratory.
“I am working here in Technology Department of MSC (Magnets, Superconductors and Cryostats) where I help in designing, constructing and measuring superconducting magnets for the CERN accelerator complex with my team.
She also enthused about being part of CERN and how she wishes to represent Pakistan in a positive light through her work at such a prestigious institution.
European Organization for Nuclear Research, known as CERN, is a European research organization that operates the largest particle physics laboratory in the world.
At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe.
China reveals the cargo on board its new China’s manned spaceship prototype, which was launched into orbit in early May, and later returned.
The return module was opened with witnesses from organizations and research bodies from China and abroad during a ceremony held by the China Manned Space Engineering office on Friday afternoon in Beijing.
Inside the manned spaceship prototype were national flags from Pakistan and Argentina.
The spaceship was also loaded with China’s first space ceramic material 3D manufacturing China’s manned spaceship device developed by the Space Application Engineering and Technology Center of Academy of Sciences, Chinese herbal medicine from Space Breeding Industry Innovation Alliance, seeds of crops from Yunnan, Ningxia and Inner Mongolia, and some youth science test items.
The manned spaceship prototype was launched from Wenchang Satellite Launch Center on May 5, and after orbiting earth for over two days, the return module successfully landed on May 8.
In a dark corner of U.S. history lies the unfortunate fact that between 1944 and 1974, three U.S. agencies — the Atomic Energy Commission (AEC), the Department of Defense, and the National Institutes of Health — conducted more than 4,000 secret radiation experiments on U.S. citizens, including children.
Welsome's reporting led to the creation of the Advisory Committee on Human Radiation Experiments by President Bill Clinton.
The report described the following instances where Americans were dosed with radioactive substances without their express knowledge or full consent: In 1945, researchers at Vanderbilt University gave 829 pregnant women what were described as "vitamin drinks", but which actually contained radioactive iron.
In 1953, at the University of Iowa, the Atomic Energy Commission began testing the effect of radioactive iodine on newborns and pregnant women.
In an almost unthinkable experiment, conducted during the 1940s and 1950s, MIT provided radioactive isotopes, which were added to the calcium and iron additives contained in Quaker Oats' oatmeal cereal.
The GPT-3 paper also includes documentation on data contamination; energy usage during training; the broader impact of the advanced language model; and potential misuses, such as “misinformation, spam, phishing, abuse of legal and governmental processes, fraudulent academic essay writing, and social engineering pretexting.”
Unlike many other pretrained language models, a preliminary assessment of algorithmic bias found in GPT-3 is also included in the paper.
On the SuperGLUE benchmark introduced last year specifically to test reasoning and other tasks for advanced NLP models, GPT-3 achieves nearly state-of-the-art results in COPA and ReCoRD reading comprehension data sets, but falls short with word-in-context analysis (WiC) and RACE, a set of middle school and high school exam questions.
“Broadly, on NLP tasks GPT-3 achieves promising results in the zero-shot and one-shot settings, and in the few-shot setting [it] is sometimes competitive with or even occasionally surpasses state-of-the-art (despite state-of-the-art being held by fine-tuned models),” the authors note.
A team of more than 30 OpenAI researchers have released a paper about GPT-3, a language model capable of achieving state-of-the-art results on a set of benchmark and unique natural language processing tasks that range from language translation to generating news articles to answering SAT questions.
Fundamental improvements to algorithms are difficult and many researchers aren’t incentivized to fully test if a new method is actually better than an old one — after all, it looks better if you invent an all-new method of doing something rather than tuning something someone else created.
A Cornell comparison of image retrieval algorithms found that performance hasn’t budged since 2006 once the old methods were updated: There are a few things I want to stress here: First, there are a lot of AI gains that haven’t been illusory, like the improvements to AI video upscalers, or noted advances in cameras and computer vision.
What the researchers found, specifically, is that in certain cases, older and simpler algorithms were capable of keeping up with newer approaches once the old methods were tweaked to improve their performance.
Researchers working to validate long-term improvements in various AI algorithms have found multiple situations where modest updates to old solutions allowed them to match newer approaches that had supposedly superseded them.
If a researcher discovers optimizations that improve performance on a new model and those optimizations are also found to work for an old model, that doesn’t mean the new model was irrelevant.
Moving on, episode 8 of the Feature Discovery Series, titled IFR (instrument flight rules), has finally been released in the Insider Area after numerous delays and even a release switch-around in the past few months.
Containing bug fixes and quality-of-life improvements across various components, the full patch notes read as follows: On par with its previous plans, Microsoft is continuing to invite further participants in its Alpha program, so those who have applied should be on the lookout for any such email heading their way.
Today, however, some interesting updates have been unveiled, including news on an upcoming Alpha patch, further Alpha invitations, the Feature Discovery Series, and more.
After the release of Microsoft Flight Simulator's Alpha 3 a couple of weeks back, nothing of note arrived last Thursday in the weekly update provided by the development team.
Heading into next month, three Partnership Series announcements can be expected, with the firms that the Flight Simulator team will be collaborating with already having been unveiled.
An experimental tool helps researchers wade through the overwhelming amount of coronavirus literature to check whether emerging studies follow scientific consensus.
Type a scientific claim into its search bar—say, “hypertension is a comorbidity for covid” (translation: hypertension can cause complications for covid patients)—and it will populate a feed with relevant papers, labeled as either supporting or refuting the assertion.
Researchers at AI2 curated the latter data set using Semantic Scholar, a publicly available database of scientific papers, which the nonprofit launched and has maintained since 2015.
They then extracted the sentences in the papers that included citations and asked expert annotators to rewrite them into scientific claims that could be corroborated or contradicted by the literature.
How it performs: When the researchers tested VeriSci on scientific claims related to covid-19, they found that it retrieved relevant papers and accurately labeled them 23 out of 36 times.
Researchers from at least two universities claim to have applied "electric" mask technologies capable of neutralizing coronaviruses, but it's best to wait for health authorities' endorsement.
"This work presents the first evidence demonstrating that the physical characteristic features of coronaviruses may be exploited to render them non-infective following contact with low-level electric field-generating electroceutical fabric," said Chandan Sen, principal author of the study and director of IU's center for regenerative medicine and engineering at the university's school of medicine, according to IU's website.
The researchers claim the next step for "electric" face masks is to use data findings to seek approval via the FDA's Emergency Use Authorization program — to disperse the fabric for use in face masks on the frontlines of the fight against coronavirus outbreaks.
But a team of researchers from Indiana University (IU) have recently published a study in a pre-print website that purports to demonstrate an electric fabric capable of killing coronaviruses.
It's tempting to imagine the world's population immune from the virus — not only via forthcoming vaccines, but also with futuristic "electric" masks capable of killing the virus upon mid-air contact.
For example, with two input variables with values 2 and 3 and a degree of 2, the features created would be: We can demonstrate this with an example: Running the example first reports the raw data with two features (columns) and each feature has the same value, either 2 or 3.
The “degree” of the polynomial is used to control the number of features added, e.g. a degree of 3 will add two new variables for each input variable.
For example, if a dataset had one input feature X, then a polynomial feature would be the addition of a new feature (column) where values were calculated by squaring the values in X, e.g. X^2.
In this tutorial, you will discover how to use polynomial feature transforms for feature engineering with numerical input variables.
These features are called interaction and polynomial features and allow the use of simpler modeling algorithms as some of the complexity of interpreting the input variables and their relationships is pushed back to the data preparation stage.
WADA hopes AI can help improve that system by tracking patterns between those markers and cross-referencing them with other information.
“When you are working for an anti-doping organisation and you want to target some athletes, you look at their competition calendar and you look at their whereabouts, you look at the previous results and so forth," WADA senior executive director Olivier Rabin told The Associated Press in a recent interview.
Instead, AI is a tool to flag up suspect athletes and make sure they get tested.
WADA is funding four projects in Canada and Germany, looking at whether AI could spot signs of drug use which might elude even experienced human investigators.
There's also what Rabin calls a “global" project in Montreal which could predict the risk of doping by evaluating data from a wider range of sources, possibly including the information athletes are required to file about their whereabouts.
Although the Turla group is still using the v4 version of the ComRAT malware, ESET researchers warned that this has since been updated to include two new features: exfiltration of victim’s antivirus logs, and the ability to control the malware via a Gmail inbox.
According to ESET, the antivirus logs are stolen by the malware and then uploaded to one of its command-and-control servers.
The Gmail control mechanism is another new functionality, wherein the malware commandeers the victim’s browser, loads a predefined cookie file and initiates a session to the Gmail web dashboard.
The ComRAT malware will read the email, download the attachment, and read and execute the instructions therein.
Matthieu Faou, an ESET researcher, told ZDNet that collecting antivirus logs might be to "allow them to better understand if and which one of their malware sample[s] was detected."
Stealing Microsoft Exchange information can potentially give bad actors access to critical enterprise accounts, which has the downstream effect of causing financial or other damage to organizations, such as loss of customer trust and faith in a company’s brand or mission, researchers observed.
“Although initially downloaded as a payload of other malware, in more recent appearances of Valak, the malware appears to come as a standalone unit in traditional phishing campaigns,” researchers wrote.
Security researchers from Cybereason Nocturnus have discovered Valak, a sophisticated loader previously used to deliver Ursnif and IcedID banking trojans, attached to phishing campaigns specifically targeting enterprises in the United States and Germany.
Threat actors have revamped a popular malware loader into a stealthy infostealer that targets Microsoft Exchange servers to pilfer enterprise mailing information, passwords and enterprise certificates, researchers have found.
While the Cybereason team observed Valak being used independently, the malware’s dramatic makeover seems to suggest that the threat actor or actors behind the revamped loader aren’t acting alone, researchers said.
China's CDC director has said that the coronavirus didn't originate in the Wuhan wet market, so where did it come from?
It has been widely known that the purported origin of the coronavirus outbreak begun at a wet market in Wuhan, China.
The origin of the coronavirus comes mostly in two stories, the first that the virus jumped from some kind of animal in the Wuhan wet market to humans and eventually spreading to what we see today.
In fact, the Chinese government has repeatedly denied all claims that the virus came from a lab, and now they are have also denied that the virus's source was a wet market.
The director of the Chinese CDC didn't give an alternative explanation for the origin of the virus, which now raises even more questions to where it came from, or the legitimacy of the claims coming out of Chinese officials.
The next experiment measured pain tolerance in relation to how often the participants swore.
In Stephens' latest experiment, he wanted to explore whether swapping around the usage of swear words would affect pain tolerance.
During the test, participants were asked to randomly repeat one out of the four words every three seconds, and Stephens' team would record down their pain perception and how long they could keep their hands submerged in the ice water.
He found that using any swear word other than the conventional fuck didn't play a role in increasing pain tolerance.
In fact, when participants used fuck, it showed an increase of 32 percent in pain threshold and 33 percent increase in pain tolerance.
Researchers from the University College of London (UCL), published a study last week that combined already established research with new research about the genome of SARS-CoV-2.
What the study concentrated on was "patterns of diversity in the genome of SARS-CoV-2", and if levels of infectiousness increase after the virus mutates.
The researchers examined virus genomes from more than 15,000 coronavirus patients from 75 different countries and found 6,822 mutations.
Of those 6,822 mutations, the researchers isolated 273 that occurred "repeatedly and independently," and of those 273 mutations, the researchers honed in on 31 of them that occurred at least 10 times or more.
From this data, the researchers evaluated if these mutations caused the virus to be more infectious than previous versions, and the results indicated that the common mutations gave the virus no increased ability to spread.
In addition to the University of California, the project partners include The California Institute of Technology and science agencies in India, China, Canada and Japan.
Students with the #UCDivestTMT campaign used California public-records law to obtain the report showing the university system’s financial contributions to the project over the last six years up to April 30.
The university is one of the partners seeking to build the giant telescope on the summit of Mauna Kea, Hawaii’s tallest mountain.
HONOLULU (AP) - The University of California system has invested more than $68 million in the Thirty Meter Telescope project in Hawaii, a report said.
The state of Hawaii plans to launch an independent review of the University of Hawaii’s oversight of Mauna Kea.
But these efforts don’t take into account the entire carbon footprint of the shoe, including the emissions required to transport materials around the world.
Only recently have shoe brands started addressing their carbon footprint.
“Allbirds’ goal is redesigning the sneaker from the ground up,” says James Carnes, VP of brand strategy at Adidas.
The companies aren’t sharing many specific details, but we know they’re planning to combine their respective areas of expertise to create a shoe that has a carbon footprint of just 2 kg compared to the average 12.5 kg of other sneakers on the market.
This year, the company unveiled a label for each shoe, identifying exactly how many kilograms of carbon dioxide were used in the manufacturing process, all the way back to the extraction of raw materials.
They found that adding a biomimetic molecule -- one that mimics antifreeze compounds found in Arctic and Antarctic organisms -- to concrete effectively prevents ice crystal growth and subsequent damage.
"No one thinks about concrete as a high-tech material," said Wil Srubar III, author of the new study and assistant professor of civil, environmental and architectural engineering.
This new method, published today in Cell Reports Physical Science, challenges more than 70 years of conventional approaches in mitigating frost damage in concrete infrastructure.
CU Boulder researchers have discovered that a synthetic molecule based on natural antifreeze proteins minimizes freeze-thaw damage and increases the strength and durability of concrete, improving the longevity of new infrastructure and decreasing carbon emissions over its lifetime.
Since the 1930s, small air bubbles have been put into concrete to protect it from water and ice crystal damage.