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Researchers at the Indian Institute of Technology (IIT) Mandi have invented a method to simultaneously study the variations in nerve functions and brain blood flow associated with brain disorders such as ischemic stroke. The method will help locate and classify the damaged sites (lesions) in the brain, brought about by or leading to neurological diseases.
It is based on the fact that intricate interactions between nerve cells (neurons) and blood vessels (vasculature), called the NeuroVascular Coupling (NVC), regulates blood flow in the brain. Diseases such as ischemic stroke adversely affect the NVC. When the nerve impulses do not trigger the required blood flow, it results in NVC. Timely detection of NVC is critical for the prevention, diagnosis, and treatment of such diseases.
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Using the method, a benign electrical current is given to the brain through electrodes, and the responses of the brain in terms of nerve action and blood flow are simultaneously measured by Electroencephalography (EEG) and Near-infrared Spectroscopy (NIRS). While EEG and NIRS are already used independently, the new prototype combines them into a single point-of-care unit to get a more accurate picture of the NVC.
The data thus obtained is fed into mathematical models to detect the problems in NVC, which can point to neurological diseases. In addition to detecting these abnormalities, this method can pinpoint the location at which the uncoupling exists, thereby providing a better handle on the problem area.
The findings have been published in the IEEE Journal of Translational Engineering in Health and Medicine.
“The simultaneous assessment of nerve function and brain blood circulation would allow urgent treatment decisions to be made quickly in cases of stroke and hypertension,” Shubhajit Roy Chowdhury, Associate Professor, School of Computing & Electrical Engineering, IIT Mandi, said in a statement. The method can also help in identifying the progress of diseases such as Parkinson’s and can in fact predict the occurrence of these diseases even before showing symptoms. (IANS/SP)
As robots evolve to do more work around us, the UK-based humanoid robot manufacturer Engineered Arts has infused more human-like facial expressions into one of its robots, which may leave you with an eerie feeling.
In a video posted on YouTube, the robot called 'Ameca' displays various human expressions, like appearing to "wake up" from sleep, as its face shows confusion and frustration when it opens its eyes.
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Once awake, 'Ameca' starts looking at its hands and arms, opens its mouth and raises its eyebrows, just like a human does.
At the end of the video, Ameca smiles and holds a welcoming hand out towards the viewer.
According to Engineered Arts, the humanoid bot is currently unable to walk and it is working towards giving it the ability in the near future.
"Designed specifically as a platform for development into future robotics technologies, 'Ameca' is the perfect humanoid robot platform for human-robot interaction," says the company.
The 'Ameca' hardware is a development based on its own research into humanoid robotics and built on its advanced 'Mesmer' technology.
Ameca' on display at the CES 2022 conference in Las Vegas in the US in January.Unsplash
Also read: NASA humanoid robot dances to technology
Engineered Arts is slated to put 'Ameca' on display at the CES 2022 conference in Las Vegas in the US in January.
"Human-like Artificial Intelligence needs a human-like artificial body. Artificial Intelligence and Machine Learning systems can be tested and developed on Ameca alongside our powerful 'Tritium' robot operating system," the company posted on its website. (IANS/PR)
(Keywords: Humanoid Robot, Ameca, Technology)
Microsoft has disrupted the activities of a China-based hacking group, gaining control of the malicious websites the group used to attack organisations in the US and 28 other countries around the world.
The Microsoft Digital Crimes Unit (DCU) said in a statement that a federal court in Virginia granted its request to seize websites of the hacking group called 'Nickel', enabling the company to cut off Nickel's access to its victims and prevent the websites from being used to execute attacks.
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"We believe these attacks were largely being used for intelligence gathering from government agencies, think tanks and human rights organisations," said Tom Burt, Corporate Vice President, Customer Security and Trust at Microsoft.
Obtaining control of the malicious websites and redirecting traffic from those sites to Microsoft's secure servers will help the company protect existing and future victims while learning more about Nickel's activities.
Also Read : Fortnite : A Gold Mine for Hackers
"Our disruption will not prevent Nickel from continuing other hacking activities, but we do believe we have removed a key piece of the infrastructure the group has been relying on for this latest wave of attacks," Burt said late on Monday.
To date, in 24 lawsuits - five against nation-state actors -- Microsoft has taken down more than 10,000 malicious websites used by cybercriminals and nearly 600 sites used by nation-state actors.
"We have also successfully blocked the registration of 600,000 sites to get ahead of criminal actors that planned to use them maliciously in the future," the tech giant informed.
"We believe these attacks were largely being used for intelligence gathering from government agencies, think tanks and human rights organisations."Unsplash
In some observed activity, Nickel malware used exploits targeting unpatched on-premises Exchange Server and SharePoint systems.
"However, we have not observed any new vulnerabilities in Microsoft products as part of these attacks. Microsoft has created unique signatures to detect and protect from known Nickel activity through our security products, like Microsoft 365 Defender," the company noted.
Nickel has targeted organisations in both the private and public sectors, including diplomatic organisations and ministries of foreign affairs in North America, Central America, South America, the Caribbean, Europe and Africa. (IANS/SP)
(Keywords : hacking, China, Microsoft, website, victim, intelligence, attack, malicious, traffic, server, company, disruption, lawsuits, cybercriminals, vulnerability.)
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Chip manufacturer MediaTek on Monday announced that it is focused on making 2022 a year aimed at rapid growth, business success, substantial expansion in Research and Development capabilities.
MediaTek's plans to boost technology democratisation and enable access to disruptive connectivity with its range of mainstream to flagship 5G chips.
"We at MediaTek are focused on making 2022 a year aimed at rapid growth, business success, and substantial expansion in our R&D capabilities. For 2022, we are focused on further strengthening our presence in India, offering incredible experiences to customers, and supporting the country's technology initiatives with our expertise and collaboration with leading OEMs," Anku Jain, Managing Director, MediaTek India said in a statement.
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In the flagship segment, MediaTek recently announced the Dimensity 9000 chip, which is a milestone of innovation and a rise to the incredible, built-to-power flagship 5G smartphones in the world, the company claims.
MediaTek Dimensity 9000 features a single Cortex-X2 performance core clocked at 3.05GHz, three Cortex-A710 cores at 2.85GHz and four Cortex-A510 efficiency cores at 1.8GHz.
It packs a 10-core Arm Mali-G710 that takes care of graphics processing, the report said.
The chipset also comes packed with MediaTek's fifth-generation APU with six total cores for AI processing.Unsplash
Also read: Realme Unveils First 5G Smartphone
The chipset also comes packed with MediaTek's fifth-generation APU with six total cores for AI processing.
The chipset can handle screens with up to a 180Hz refresh rate at Full HD+ resolutions. It is also the first chipset to have an 18-bit image signal processor, offering the ability to capture 4K HDR video using up to three cameras at the same time, or still photos using up to a massive 320MP sensor. (IANS/PR)
(Keywords: 5G, smartphones, Mediatek)