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• Millions of people have quickly had to adapt to working from home during the pandemic, leading some to scramble to look presentable over video chats with colleagues.
• One strategy workers have used is the purchase of a ring light, a product that can be used in your video set-up to to improve lighting of your face on-camera.
• Right lights have already been popular buys for influencers, vloggers, and TikTok creators who adopt various tools to produce professional-quality videos uploaded online.
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The ring light is beloved by YouTubers and aspiring TikTok creators for casting a flattering, even glow across anyone's face. Now, ring lights are seeing widespread interest among people tuning into Zoom work calls from their poorly lit homes during the pandemic.

Video conferencing software has exponentially grown in use in recent months, and employees now find themselves in situations online creators have been dealing with for years: Looking their best in front of the camera while in the comfort of their own homes.

Lockdown orders have coincided with a recent surge of interest in ring lights, especially in the U.S. where work-from-home rolled out to non-essential employees starting in early March. Twitter users have been sharing with followers their recent ring light purchases for classes, work meetings, and happy hours taking place over Zoom and FaceTime.

Ring light set-ups provide the benefits of a professional photo studio without the cost, casting your face in a shadow-free, flattering hue while you're in front of the camera. Ring lights on Amazon go for between $60 and $150, depending on how powerful of a light or complicated of a set-up you want. Many of these ring-lights come with tripods and pieces to hold your phone or camera.

Although newly work-from-home employees may just be discovering ring lights for the first time, they've long been a trick for creators whose bedrooms have doubled as their studios. While ring lights have been especially vital for makeup tutorials and beauty vloggers, they've since become commonplace to set-ups for young people starting out on YouTube and TikTok. Now, they're just one of the products with appearance-adjusting features catered to influencers, such as specific camera models that come with skin-smoothing filters.

As dates for returning to the office continue to get pushed back at some companies, sales will likely continue to rise for ring lights. However, it's probably on the more expensive side of simple tips and tricks to implement to look for presentable on your video calls. For those that don't want to splash out cash for a ring light, Zoom has a little-known filter on its platform that users can apply to give their faces a softer look and minimize imperfections. The "touch up my appearance" can be turned on directly within the Zoom app (you can find the steps for activating it on Business Insider).

SEE ALSO: WhatsApp is touting steps taken to cut the viral spread of coronavirus misinformation, but experts question whether it's done enough

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Cutters of diamonds and other gemstones have a high-pressure job with conflicting demands: Flaws must be removed from rough stones to maximize brilliance but done so in a way that yields the greatest weight possible. Because diamonds are often cut to a standard shape, cutting them is far less complex than cutting other gemstones, such as rubies or sapphires, which can have hundreds of different shapes. By coupling geometry and multivariable calculus with optimization techniques, mathematicians have been able to devise algorithms that automatically generate precise cutting plans that maximize brilliance and yield. The goal is to find the final shape within a rough stone. There are an endless number of candidates, positions, and orientations, so finding the shape amounts to a maximization problem with a large number of variables subject to an infinite number of constraints, a technique called semi-infinite optimization. Experienced human cutters create finished gems that average about 1/3 of the weight of the original rough stone. Cutting with this automated algorithm improved the yield to well above 40%, which, given the value of the stones, is a tremendous improvement. Without a doubt, semi-infinite optimization is a girl.s (or boy.s) best friend.

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The Agriculture, Fisheries & Conservation Department today said genetic sequencing tests are being carried out on the pet dog of a confirmed COVID-19 patient which could reveal if the virus has mutated or not.

The department's Assistant Director (Inspection & Quarantine) Dr Thomas Sit told a press briefing this afternoon that the coronavirus is what is known as an RNA virus which eventually mutates.

“That is why the University of Hong Kong School of Public Health needs to do a genetic analysis to compare this dog’s genetic sequencing to the virus isolated from the patient so that they can compare. So if it is totally identical, then there is no mutation. The testing is still ongoing.”

Dr Sit reiterated that international experts agreed that the dog has a low level of infection, despite its blood tests not being ready yet.

“From the first sample to our last sample tested, it has already (been) six days. The dog’s nasal or oral mechanism, their secretion they should have - if contaminated - they should have a way to clean the virus, it would not stay for that long if it was just a contamination.

“I think it will take at least five or seven days for the blood results because it is not an easy test, it is not a quick test. We need to grow a virus and then neutralise the serum, so it takes some time.”

He added that it was too early to say whether animal-to-animal transmission was a possibility.

“At this stage, we do not have enough data to have a 100% answer as to whether it is infectious to other dogs or not. But if the dog’s owner is positive, it is better to take precautionary measures to prevent onward transmission.”

Dr Sit also advised dog owners to wash their hands, wear gloves and try to stop their dogs from licking their surroundings to prevent the virus from spreading further.

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