Girl Genius for Friday, January 19, 2018

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The Girl Genius comic for Friday, January 19, 2018 has been posted.
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jlvanderzwan
22 hours ago
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Wait... how old are the Foglios, and should I be worried that they pass away before we ever see the conclusion to this story?
inkcurious
17 hours ago
Phil is 61, Kaja is 48 (per Wikipedia)
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Today in CV Dazzle News

jwz
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Adversarial Patch:

These adversarial patches can be printed, added to any scene, photographed, and presented to image classifiers; even when the patches are small, they cause the classifiers to ignore the other items in the scene and report a chosen target class.

We present a method to create universal, robust, targeted adversarial image patches in the real world. The patches are universal because they can be used to attack any scene, robust because they work under a wide variety of transformations, and targeted because they can cause a classifier to output any target class.

Previously, previously, previously, previously, previously, previously, previously, previously, previously, previously, previously.

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jlvanderzwan
2 days ago
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ttencate
2 days ago
These always make me wonder if the human brain has similar weaknesses.
meertn
1 day ago
Isn't pareidolia similar? Seeing a face where there isn't one will also cause you to miss other things.
ttencate
1 day ago
But then there's always some semblance to the actual thing. (Not that AI isn't having trouble with that as well.) But these are just seemingly random patterns, reverse engineered to trigger exactly the right neurons.
meertn
1 day ago
Ah, I see your point. I that case, I would guess there is, but it's more difficult to reverse engineer it.
jlvanderzwan
1 day ago
Humans have more noise to prevent overfitting, I presume
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Meals of the Day

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Meals of the Day

Brunkfast: the most important meal of the day.

Here’s more food.

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jlvanderzwan
2 days ago
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ttencate
2 days ago
Should be on a circle. Pity we don't have 24-hour clocks in most parts of the world.
jlvanderzwan
2 days ago
You made me check the clocks. Dinner is the wrong way around
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How to Use Canned Beets to Improve Athletic Performance

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Vegetable nitrates, concentrated in green leafy vegetables and beets, underwent a great makeover a few years ago. They went from being understood as inert substances to having a profound effect on the power plants within our cells, reducing the oxygen cost during exercise. This means they can allow us to bust out the same amount of work with less oxygen. One little shot of beet juice allowed free divers to hold their breath for more than four minutes, or about a half-minute longer than usual. For others, improved muscle efficiency allowed athletes to exercise at a higher power output or running speed for the same amount of breath. I profiled this fascinating discovery in an unprecedented 17-part video series (see below), the longest I think I’ve ever done. That was back in 2012, but what does the new science say? That’s what I cover in my video, Whole Beets vs. Juice for Improving Athletic Performance.

Most of the studies were done on men, but it works on women, too, including African-American women who are an even more neglected research demographic. Drinking beet juice results in the same workload power outputs using significantly less oxygen. But what about whole beets? They are cheaper, healthier, and found in any produce aisle, but there had never been studies on actual beets… until now.

Whole beetroot consumption acutely improves running performance. They gave physically fit men and women a cup and a half of baked beets, which is equal to about a can of beets, 75 minutes before running a 5K. They started out the same, but during the last mile of the 5K race, the beet group pulled ahead compared to the placebo group, who were given berries instead. Though the beet group participants were running faster, their heart rate wasn’t any higher. If anything, they reported less exertion.

Faster time with less effort? They don’t call them block-rocking beets for nothing! :)

If nitrates are so good, then why not just take them in a pill? Although dietary nitrate supplements can work, their long-term safety is questionable. Non-vegetable sources of nitrates may have detrimental health effects, so if we want to improve our performance, we should ideally obtain nitrates from whole vegetables. The industry knows this, so instead it markets an array of nitric oxide-stimulating supplements. However, there is little or no evidence of a performance improvement following supplementation with these so-called NO boosters. The evidence is with the vegetables.

How much money can companies make selling beets, though? How about a novel beetroot-enriched bread product? We’ve tried to get people to eat their fruits and vegetables, and where has that gotten us? But, hey! Lots of people eat white bread, so why not have them eat red bread? And indeed it worked: red beet bread brought down blood pressures and improved the ability of arteries to relax and dilate naturally. Bread, therefore, may be an effective vehicle to increase vegetable consumption without significant dietary changes,” because heavens forbid people should have to change their diet to improve their health… 


If you want to put the whole discovery in context and get the detailed mechanism, see my 17-part video series:

How else can we support athletic performance? See

On the other hand, Paleo Diets May Negate Benefits of Exercise.

It’s great that we can improve athletic performance eating a few beets, but what about people who could really benefit from a more efficient use of oxygen? That’s the subject of my video Oxygenating Blood with Nitrate-Rich Vegetables. Also check out Slowing Our Metabolism with Nitrate-Rich Vegetables.

In health,

Michael Greger, M.D.

PS: If you haven’t yet, you can subscribe to my free videos here and watch my live, year-in-review presentations:

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jlvanderzwan
3 days ago
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Joe Veix traces the history of badday.mpg, one of the first viral videos

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good example at how videos spread by email in 1997

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jlvanderzwan
3 days ago
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For @newscientist #science #cartoon #tomgauld

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For @newscientist
#science #cartoon #tomgauld

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jlvanderzwan
3 days ago
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