Technologies

Test for COVID using your phone camera? A university lab is trying it out

The method is promising and cheap, though in very early stages.

For the most up-to-date news and information about the coronavirus pandemic, visit the WHO and CDC websites.

Getting shipped a handful of free at-home COVID tests from USPS was helpful, but what if you could test yourself whenever you wanted, using your phone’s camera? Academic scientists have developed a testing method that just needs some affordable lab equipment and your smartphone, and early results suggest it’s as accurate as PCR tests.

The system, developed by University of California, Santa Barbara scientists and described in a new paper published in the journal JAMA Network Open, needs less than $100 in relatively common equipment like a hot plate, according to Gizmodo. Thereafter, each test costs only $7, making it potentially ideal for remote communities or individuals struggling to secure PCR tests.

The method is pretty simple: Download the free app developed by scientists, Bacticount, and perch your phone over the hot plate with the rear camera facing down. You’ll place your saliva into a test kit that’s on the hot plate, drop in a reactive solution that will make viral RNA more noticeable to your phone’s camera, and run the app. The solution will bond with the viral material (both COVID and the flu were tested in the study) and turn bright red, and the app will estimate the amount of viral load in the saliva based on how quickly the color reaction happened.

The system is called Smart-lamp, for smartphone “loop-mediated isothermal amplification,” which is the heat-and-solution approach used by the UCSB scientists. It’s very cheap and seems easy to set up, which is perfect for the project’s goal to satisfy a need “in low-income and middle-income countries for low-cost, low-tech, yet highly reliable and scalable testing for SARS-CoV-2 virus that is robust against circulating variants.”

But the method still needs plenty of vetting, as this initial study contained a very small sample of 50 symptomatic and asymptomatic patients in one Southern California area. In other words: Don’t expect to be able to order Bacticount-compatible kits and do your own testing soon, especially since the app has only been calibrated to work with the cameras on Samsung Galaxy S9 phones.

Still, the system is promising, and we’ve reached out to the UCSB researchers about how soon it could be authorized for public use. If it’s as accurate as initial tests suggest, its affordability and scalability could be a serious asset to testing capabilities in every country as the need for COVID testing continues into 2022.

Technologies

CNBC Daily Open: Nvidia carries world of AI on its shoulders

Investors wait for Nvidia to set the scene of the biggest market trend in a generation, as its earnings look set to determine the direction of the AI trade.

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Hello, this is Leonie Kidd coming to you from London.

Nvidia is carrying the weight of the AI world on its shoulders. But, with sky-high earnings expectations, can the group led by CEO Jensen Huang actually impress investors?

Read on.

What you need to know today

Nvidia will report earnings after the bell on Wall Street on Wednesday. The AI darling’s blockbuster performance over the last year has driven earnings forecasts higher, adding to the so-called “expectations premium” Nvidia now needs to surpass.

The Street is projecting an eye-watering set of second-quarter sales at over $92 billion, according to FactSet. Cantor Fitzgerald highlighted consensus third-quarter sales expectations of $103.7 billion in a Saturday report.

Over the last year, Nvidia has beaten expectations across all topline metrics, but shares have been sold down the following trading day, according to Bespoke Data.

Hyperscaling test

This quarter, there is one persistent concern among investors: Nvidia’s dependence on the hyperscalers. The company now reports earnings in a way that separates these hyperscalers into its AI cloud, industrial and enterprise pack. Investors have voiced worries about this concentrated dependence on Amazon

Nvidia fell 2.9% on Monday, dropping for a seventh straight day, the longest losing streak since 2022. Shares ended the day 2.2% higher on Tuesday.

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Crude in the red

Oil prices were sharply lower in early trade on Wednesday.

A combination of factors is playing into the session today. Iran and Oman are discussing a joint temporary shipping route through the Strait of Hormuz in an effort to increase traffic through the chokepoint.

This comes as the U.S. administration forges ahead with its plan to use economic sanctions to escalate its war with Tehran.

Meanwhile, U.S. President Donald Trump has submitted a proposed agreement with Saudi Arabia to develop civil nuclear energy. This accord has now been submitted to Congress. A U.S. official told MS NOW that this will only move forward if Saudi Arabia joins the Abraham Accords.

Retaliation time

Canada has outlined “dollar-for-dollar” retaliatory tariffs that it will impose on over $20 billion of U.S. goods, after trade talks broke down with the Trump administration.

The counter-tariffs range from 15% to 50% and target a wide array of Canadian imports from the U.S., including dairy, seafood, appliances, wood and paper products, and clothes.

Among the most significant are 50% tariffs on American steel and aluminum, doubling the current rate.

The Bessent Bid

The so-called “debasement trade” has found a second wind following Treasury Secretary Scott Bessent’s intervention in the bond market.

In this environment, assets like crypto and precious metals gain as investors look to hedge against the weaker U.S. dollar and Treasury debt.

— Leonie Kidd

And Finally…

Dolly Parton, queen of country music, dies at 80

Dolly Parton was around six when she wrote her first song: “Little Tiny Tasseltop,” an ode to her corncob doll with corn-silk hair. Her mother stored it preciously in a shoebox.

“I loved that little doll,” Parton wrote decades later. “I expressed myself and my feelings through writing – I’m sure what I was thinking was, ‘Well, Tasseltop has to have a song about her.’”

Parton never stopped making music after that. The irrepressible country music singer, songwriter and actress whose charisma, heartfelt lyrics and business acumen captured the public’s imagination for nearly six decades, died on Tuesday aged 80, her family said in a statement.

— Reuters

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Technologies

Verum Exchange Launches a $10 Bonus for Online Mining of Verum Coin and Bitcoin

Verum Exchange is expanding its online mining capabilities, allowing users to earn a $10 bonus while continuing to mine cryptocurrency directly from their smartphones. The feature is available not only in the currency converter app but also within Verum Messenger.

Online mining has long been part of the Verum ecosystem. Now, the company has added a new incentive to the existing feature — a bonus for participating in online mining.

The concept of online mining is changing the traditional perception of cryptocurrency mining. Users do not need to set up specialized mining equipment at home or deal with complex technical configurations. The feature can be accessed directly through the Verum digital ecosystem.

Verum Exchange: https://exchange.verum.im
Verum Messenger: https://ios.verum.im

Technologies

Supreme Court permits certain Trump mail-in voting restrictions before midterm elections

The Supreme Court has temporarily blocked a lower court ruling that prevented the Trump administration from implementing new restrictions on mail-in voting, allowing the administration to proceed with its plan to impose new requirements on states ahead of the midterm elections.

The Supreme Court on Monday sided with President Donald Trump for now in his effort to impose sweeping new restrictions on distributing mail ballots, putting on hold a lower-court ruling that had blocked key parts of the plan ahead of November’s midterm elections.

The justices, over three dissents, paused a ruling by U.S. District Judge Indira Talwani in Boston that prevented the Trump administration from carrying out portions of a March executive order involving the U.S. Postal Service and voter eligibility lists. The court’s three liberal justices dissented.

But the decision does not immediately allow the Postal Service to put its new mail-ballot system into effect.

A separate nationwide injunction issued Aug. 11 by U.S. District Judge Indira Talwani in Boston still blocks USPS from implementing the new procedures for the Nov. 3 elections. The administration would have to overcome that order as well.

The distinction was central to the Supreme Court’s decision.

The majority said Trump’s executive order itself does not require states to change how they conduct elections. Instead, it directs federal agencies to develop policies that could later impose requirements on states. Because those policies had not yet been implemented when 23 states and Washington, D.C., challenged the order, the court said the challenge was premature.

The justices stressed they were not deciding whether Trump’s order or the policies developed under it are ultimately legal.

“The Court’s disposition of this application does not mean that any measure taken by the Government to implement the Order will necessarily be lawful,” the majority wrote. “On that score, time will tell.”

The Postal Service last week finalized rules intended to carry out part of Trump’s order, including new requirements involving ballot envelopes, barcodes and information states must provide USPS. Those rules remain blocked by Talwani’s separate injunction.

The case now returns to the 1st U.S. Circuit Court of Appeals as the underlying legal fight continues. Some states have already started preparing to send ballots to military and overseas voters in early September.