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Telus Sky's Northern Lights to premiere Saturday night – Calgary Herald

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An art installation years in the making that promises to amplify Calgary’s nighttime skyline will officially debut on Saturday night.

Northern Lights, a light show installed on two sides of the Telus Sky building, was created by artist and author Douglas Coupland. It features 2.2 kilometres of LED lighting, 600 custom bulbs and 89,000 pixels of light.

The lights — which wrap most of the windows on the building in an inverted L shape — combine to depict the aurora borealis in motion, along with a myriad of other patterns. The show will be visible on both the north and south facing sides of Telus Sky, a 59-storey skyscraper at 685 Centre St. South.

Artist Doug Coupland with his Northern Lights on the TELUS Sky building in Calgary on Thursday, April 18, 2019. Photo by Mike Drew /Postmedia

Calgarians have been seeing test runs of the show periodically for months, but Saturday night will be the official launch of the full show.

At 160,000 square feet, Northern Lights will be the largest art installation in Calgary.

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After the Saturday night premiere, Northern Lights will run every night year-round, starting about one hour before sunset to 11 p.m.

Telus is recommending people watch the show from the ground from Centre Street and Stephen Avenue or Centre Street and 9 Avenue.

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Sonos One Wi-Fi speakers are $40 off today – The Verge

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Sonos ran an all-too-short one-day sale on its Wi-Fi speakers last week for Black Friday. The good news is that they’re discounted once again at Best Buy and Amazon, though the price cuts aren’t as steep. Both the Sonos One SL without microphones and the Sonos One (Gen 2) are $40 off at either retailer. This puts the One SL at $140 and the One (Gen 2) at $160. Neither are best-ever prices, but given that they’re within $10 of their lowest costs, we thought you’d like to know about these deals.

If HBO Max caught your attention yesterday with the news that all Warner Bros. films released through 2021 will debut day-and-date on the streaming platform, you understandably might want a subscription for yourself or to gift to someone else. For new and returning subscribers, you can save 20 percent by prepaying for a six-month subscription to the service. Instead of $90, it’ll cost you $70. Just note that this is non-refundable.

Call of Duty: Black Ops Cold War, the latest installment that crams essentially four games into one package, has received a $10 price cut across all platforms at Walmart. The PS4 or Xbox One version of the game now costs $50 instead of $60. If you’re already gaming on the PS5 or Xbox Series X / S consoles, you’ll spend $60 (PS5, Xbox Series X / S) instead of $70.

It’s worth keeping in mind that if you get the PS4 / Xbox One version, there’s a $10 fee associated with getting the next-gen patch for either the PS5 or Xbox Series X / S. So if you just don’t want to fuss with that, get the pricier next-gen version instead.

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What you need to know about COVID-19 antibody tests – Toronto Star

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A COVID-19 antibody test is now generally available to Ontario residents, with a doctor’s requisition. The medical laboratory chain Life Labs began offering the Health Canada approved serology test on Monday, Nov. 23, 2020. Currently available in British Columbia and Ontario, the test costs $75.

However, internal medical expert Dr. Gerald Evans advises that the results of a COVID-19 antibody tests are not always straightforward. He said he can’t think of many clinical circumstances when a doctor would request this information.

“Really it has very little utility in the general practice of medicine,” he said. “Right now the only use that we have for an antibody test, based on the guidelines that are issued, is to use it to investigate children who present with a multi inflammatory syndrome (IMSC)…. That’s really the only clinical utility we have for it,” he said.

He also explained that not everybody who gets COVID-19 exhibits the exact same antibody response, which makes the virus different from others such as measles or chickenpox.

“Most people get something, but some people are what we call ‘low-level responders,’ meaning the levels of antibodies that they get could be below a detection level that we’re looking for.”

“So if you wanted to do this test because you’re saying ‘I recall being ill and I think it was COVID,’ you do an antibody test. If it’s negative, it doesn’t really say that you didn’t have a COVID-19 infection. It may mean that you were one of these people that had a very mild infection and didn’t get a big antibody response.”

He also explained that humans make three different types of antibodies in response to a virus — IgG, IgA, IgM.

“IgM antibodies disappear very quickly. If you’re more than a couple of months out from your infection, you won’t find them. IgA antibodies are super tricky because they go up and down, they disappear, and some people don’t make them at all.”

The IgG antibody, which he said believes the Life Labs antibody tests are based on, is much more stable.

Life Labs CEO Charles Brown called antibody testing “another piece of the puzzle to better understand COVID-19.”

The company also explains on their website that a negative result might mean a person has been infected, but that antibody levels were too low for the test to detect. They note that you might receive a negative result, even after being infected, if not enough time has lapsed since the infection, to allow for antibodies to develop.

“Antibody response varies from person-to-person and can take up to three to four weeks post-onset of symptoms or post-exposure to be reliably detectable by antibody assays,” the company said.

Both Dr. Evans and Life Labs note that the test cannot be used to determine a current infection.

“It doesn’t really help in the diagnosis of COVID-19. Antibodies are made after you’re infected or when you’re in that recovery phase,” Dr. Evans said.

Dr. Evans said that typically, the IgG antibodies for the measles can be detected by a test in anyone that has ever had, or been inoculated against, the virus, even years later. They also indicate immunity. In the case of COVID-19, he said, it’s not the same thing.

“We still don’t quite have the exact test that tells us that those antibodies we’re measuring are at a high enough level or are responsible for neutralizing the virus, which would then predict that you’re immune,” he said.

“We’ve found people that even have these antibodies, they may not be in sufficient quantity. Or, it may not be the right antibody that actually protects them and gives them immunity. That’s the big problem.

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“You could imagine somebody saying: ‘I’m going to get the test done to show that I’m immune,’ and that’s not really what it’s telling you.”

Life Labs website states that a positive test result does not infer immunity. They recommend getting the blood test three to four weeks after the onset of symptoms, adding that it’s possible to detect antibodies up to four months post-exposure.

“We look forward, to continue building our support for the healthcare system’s response to the pandemic, where Canadians have access to more important COVID-19 information to help them make informed decisions about their health,” Brown said.

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Health Matters: Two Alberta toddlers finally receive expensive, life-saving drug Zolgensma | Watch News Videos Online – Globalnews.ca

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Health Matters December 3: Two Edmonton-area children, suffering from spinal muscular atrophy Type 1 and in need of a $2.8 million life-saving Zolgensma treatment, have finally received it — thanks to a twist of fate. And the winner of the Mighty Millions Lottery grand prize is revealed. Su-Ling Goh reports.

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