Connect with us

Tech

World’s smallest ultrasound detector developed by German researchers

Published

on

A team of researchers at the Technical University of Munich (TUM) and Helmholtz Zentrum Munchen have developed the world’s smallest ultrasound detector, the silicon waveguide-etalon detector, or SWED. The ultrasound detector is 100 times smaller than an average human hair and can visualize features that are much smaller than previously possible. Researchers developed the device using the silicon photonics technology, which is a departure from the previously used piezoelectric tech.

Read: IIT Kharagpur Researchers Develop Microneedle To Administer Drug In A Painless Way

‘Smaller than blood cell’

Researchers have said that the previously used detection technology on piezoelectric detectors would not have been as sensitive as the latest one because if it was miniaturized. However, silicon photonics technology is able to produce high-resolution images as it has the ability to confine light in dimensions smaller than the optical wavelength. The SWED is also up to 200 times smaller than the ultrasound wavelength employed, which means that it can be used to visualize features that are smaller than one micrometer, leading to what is called super-resolution imaging.

Read: Researchers Could Send A Submarine To Explore Huge Saturn Moon Titan’s Seas

“This is the first time that a detector smaller than the size of a blood cell is used to detect ultrasound using the silicon photonics technology. If a piezoelectric detector was miniaturized to the scale of SWED, it would be 100 million times less sensitive,” says Rami Shnaiderman, developer of SWED said in a release on TUM’s website.

Read: COVID-19: Researchers Develop ‘breathalyser’ Like Device To Detect Virus In Seconds

While the researchers are primarily aiming for applications in clinical diagnostics and basic biomedical research, industrial applications may also benefit from the new technology. The increased imaging resolution may lead to studying ultra-fine details in tissues and materials. The SWED could be also used to study fundamental properties of ultrasonic waves and their interactions with the matter on a scale that was not possible before, said the team of researchers.

Read: Researchers Discover A New Way To Reverse Antibiotic Resistance In Some Bacteria

 



Source link

Continue Reading
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Tech

Tech chief executives to defend key law in front of U.S. Senate panel on Wednesday- Technology News, Firstpost

Published

on

By

 Tech chief executives to defend key law in front of U.S. Senate panel on Wednesday

By David Shepardson and Nandita Bose

WASHINGTON (Reuters) – The chief executives of Twitter Inc, Facebook and Alphabet Inc will tell U.S. lawmakers at a hearing on Wednesday that a federal law protecting internet companies is crucial to free expression on the internet, according to written testimonies from the companies seen by Reuters.

Section 230, a provision of the 1996 Communications Decency Act, shields technology companies from liability for user-generated content and allows them to remove lawful but objectionable posts. It has come under heavy criticism from President Donald Trump and both Democratic and Republican lawmakers who have been concerned about Big Tech’s content-moderation decisions.

Twitter Chief Executive Jack Dorsey will tell the Senate Commerce Committee on Wednesday that eroding the foundation of Section 230 “could collapse how we communicate on the Internet, leaving only a small number of giant and well-funded technology companies.”

Facebook’s Mark Zuckerberg warned that tech companies were likely to censor more to avoid legal risks if Section 230 is repealed.

“Without Section 230, platforms could potentially be held liable for everything people say,” he said.

(Reporting by David Shepardson and Nandita Bose; Editing by Bernadette Baum)

This story has not been edited by Firstpost staff and is generated by auto-feed.



Source link

Continue Reading

Tech

Hats off to the UK for smartphone unlocking laws, and more tech news today

Published

on

By

Your tech news digest, by way of the DGiT Daily tech newsletter, for Tuesday, 27 October 2020

1. UK bans locked phones, hooray!

The UK has announced a ban on the sale of network-locked phones, finally ending one of the vices that carriers try and use to keep you loyal to them.

  • The BBC reported that while it typically costs about £10 to get a locked smartphone unlocked, studies showed that’s not the full story, with half of all those who try to do so experience difficulties:
  • “These [difficulities] can include facing a long wait to receive the code needed to trigger the process, as well as then finding that the code does not work.”
  • “We know that lots of people can be put off from switching because their handset is locked. So we’re banning mobile companies from selling locked phones, which will save people time, money and effort — and help them unlock better deals,” Ofcom connectivity director Selina Chadha was quoted as saying on the regulator’s website.

Finally: 

  • This is a welcome change, with most reactions saying finally, this is long overdue, and so on.
  • While some carriers in the UK were already keeping phones unlocked, the likes of giants including Vodafone and BT were not, and will now need to comply by December, 2021. Which isn’t soon enough really, but at least it will come into place.
  • The whole practice was a great scheme for carriers but really made little sense in any other business model in the world, where consumers pay for devices they can only use while paying a certain company. Telecommunications is unique, and carriers will always wield power when they can get away with it.

Elsewhere?

  • In Europe, this is generally the case already, and in Singapore, for example, locked phones are banned.
  • In Australia phones are generally unlocked too, except in some cases with prepaid phones where phones are often affordable but made cheaper through locks.
  • In South Africa, major carrier Vodacom started adding locks as recently as a year ago, reversing previous unlocked phones.
  • And of course, there’s the US, where locked phones are much more common. Some devices may only be compatible with specific networks too. For example, some phones like the OnePlus 7T require a specific Verizon variant as the standard unlocked model doesn’t work on Verizon. Which is strange!
  • Verizon, for example, keeps a lock for 60 days after purchase before then unlocking. And it’s completely legal to unlock a phone, which leads to guides like ‘How to unlock a Verizon phone’ being popular, for Verizon’s pre-paid devices.
  • Otherwise, unlocking a phone locked to AT&T on a contract may require that you’ve paid out a 24-month plan already and jumping through various hoops.
  • It may be that moves like this commendable one from the UK regulator heaps pressure on other countries, too.

2. The OnePlus Nord N10 and N100 were announced yesterday with the leaks right on the money. They’re more affordable or budget phones with headphone jacks, and with microSD card slots for the first time for OnePlus phones. We don’t know pricing yet but it’s going to be in a battle with the likes of the Google Pixel 4a and iPhone SE for the N10 (Android Authority). And wait, wasn’t every OnePlus phone supposed to have a high refresh rate screen? (Android Authority).


3. Samsung Galaxy S30 Ultra specs leak: An S20 Ultra with a new coat? Oh, and don’t expect a charger or earphones in the Galaxy S30’s box (Android Authority).


4. Fairphone 3 Plus review: Sustainability comes with compromises (The Verge).


5. Facebook is the latest to jump into mobile cloud gaming. I had a look, the games on offer are …extremely Facebook. Plus, digs at Apple’s iOS policies (Android Authority).


6. Microsoft adds mouse and trackpad support to Office apps on iPad (Engadget).


7. iPhone 12 drop test confirms the new screen helps durability, to an extent (Engadget).


8. Roku Ultra 2020 review: If it ain’t broke, don’t fix it, which makes it a tough sell over the Roku Streaming Stick Plus which is half the cost (CNET).


9. AMD agrees to buy Xilinx for $35 billion in stock, which may open up 5G and automotive electronics as Xilinx invented the FGPA (NY Times)


10. “Sometimes I think of how cakes are a miracle.” (Twitter)


11. Moon holds more water in more places than ever thought — but don’t overdo it. “To be clear, this is not puddles of water,” stressed lead researcher Casey Honniball (AP).


The DGiT Daily delivers a daily email that keeps you ahead of the curve for all tech news, opinions, and links to what’s going down in the planet’s most important field. You get all the context and insight you need, and all with a touch of fun. Plus! Rotating daily fun for each day of the week, like Wednesday Weirdness. Join in!



Source link

Continue Reading

Tech

Apple to charge more for apps in India and five other countries

Published

on

By

By: Tech Desk | New Delhi |

October 27, 2020 11:43:30 am


apple app store price hike, app store price hike india, app store prices revision, apple app store controversy, apple app store tax, app store tax on developersApple App Store prices set to be increased in six countries (File Photo)

Apple announced on Monday that it will charge more apps in India, Brazil, Colombia, Indonesia, Russia, and South Africa in the next few days. This change will apply to in-app purchases as well and the developer will receive updated price tier charts informing them about the change in prices of their apps. Specifically for India, there will be an increase of two per cent in addition to the goods and services tax of 18 per cent which is already in place. On the other hand, in Indonesia foreign developers will have to bear the burden of an additional 10 per cent tax.

“When taxes or foreign exchange rates change, we sometimes need to update prices on the App Store,” the Cupertino-giant said in the announcement posted on its developer website.

There is no confirmation whether the increase in prices will be applicable or not for other services like Apple Music, Apple TV+ and iCloud. On the other hand, this increase will apply on auto-renewable subscriptions as well. Also, it is yet to be clarified as to when the App Store users will be able to see these changes.

The statement further mentioned, “You can download the updated price tier charts now. Once these changes go into effect, the Pricing and Availability section of My Apps will be updated, and your proceeds will be adjusted accordingly and calculated based on the tax-exclusive price. You can change the price of your apps and in-app purchases (including auto-renewable subscriptions) at any time in App Store Connect. If you offer subscriptions, you can choose to preserve prices for existing subscribers.”

ALSO READ | Fortnite controversies timeline: All the news about the world’s most popular video game

In the near future, the prices of Albania and Iceland as per the other markets with value-added tax selling in US dollars. However, this is not the first instance where Apple has made changes in App store prices for specific countries. The prices were revised in Japan last year. Also, the last time India prices were revised was in the first quarter of 2017.

Express Tech is now on Telegram. Click here to join our channel (@expresstechie) and stay updated with the latest tech news.

📣 The Indian Express is now on Telegram. Click here to join our channel (@indianexpress) and stay updated with the latest headlines

For all the latest Technology News, download Indian Express App.

© IE Online Media Services Pvt Ltd

Source link

Continue Reading

Trending