Why is Theobromine toxicity a significant risk to dogs but not cats? | AskScience Blog

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Saturday, September 4, 2021

Why is Theobromine toxicity a significant risk to dogs but not cats?

Why is Theobromine toxicity a significant risk to dogs but not cats?


Why is Theobromine toxicity a significant risk to dogs but not cats?

Posted: 03 Sep 2021 10:02 PM PDT

Edit: wow I posted this and fell asleep, I didn't expect so many responses! Thank you to everyone who replied!

submitted by /u/Spirited_Cell_3344
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Just how common are binary star systems?

Posted: 03 Sep 2021 06:46 PM PDT

Question is simple: how common are binary (or trinary, or quartenary, etc) star systems in comparison to single stars like our Sun? You'd think this would be an easy question to Google, but the results are inconclusive. Some sources say up to 85% of stars are part of a binary+ system, while others say that the majority of stars are single. Just what's the deal?

submitted by /u/StandsForVice
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Is there a way to determine if the precision of two datasets is significantly different?

Posted: 04 Sep 2021 08:25 AM PDT

When I am injecting sample using a 1 mL syringe,over ten injections my volume is 0.999 mL +- 0.012 mL. When my coworker does the same, her volume is 0.999 mL +- 0.026 mL. Is there a way to quantitatively determine if that difference in standard deviation is itself significant? (I want to determine if that difference is due to natural variation or whether it is due to a systematic issue with her technique). Thanks.

submitted by /u/akkon888
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What is the correlation between general public satisfaction and the salary of high-level government employees in said country?

Posted: 03 Sep 2021 08:05 PM PDT

What are some of the problems modern neuropsychological testing faces when it comes to cultural diversity?

Posted: 04 Sep 2021 07:53 AM PDT

Recent references welcome 😊

submitted by /u/trumpsaltereg0
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When meteorologist say something is a "100 year flood" or "500 year storm", does the math they use to calculate this account for climate change?

Posted: 04 Sep 2021 07:01 AM PDT

Is a weakening AMOC expected to make El Niños stronger and more frequent?

Posted: 04 Sep 2021 12:57 AM PDT

I've been seen a lot about how weakening AMOC will likely increase wind speeds, extreme weather events in the Atlantic, cool off Europe and parts of North America, raise Eastern US sea levels, and affect the monsoons in the Indian Ocean.

But what about the east Pacific? What about the Western US and Central America?

My naive expectation is that a weak AMOC means sluggish currents in the Pacific as well which means warmer equatorial waters, and wetter winters in the American West. But I'm naive and probably grossly wrong.

submitted by /u/LurkerFailsLurking
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How is water pressure maintained to the top floors of buildings taller than municipal water towers?

Posted: 03 Sep 2021 09:42 AM PDT

When does an unborn baby have a functional heart and heartbeat?

Posted: 03 Sep 2021 07:17 PM PDT

Let me be very clear: this is NOT supposed to be political. But in light of Texas' SB8, I saw an argument that the law referenced "fetal heartbeat", whereas at six weeks of pregnancy a baby's detected pulse is just electrical signals, not contractions of a heart. This argument continued to say that at six weeks, any "beat" detected is artificially propagated by technology, whereas an actual heartbeat can be heard without any propagation. So I'm wondering, at what point can a baby be said to have actual heartbeats caused by cardiac contractions? Is this a subjective question open to different interpretations?

submitted by /u/chocoloholic
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What are the current major challenges for developing an Alzheimers treatment based on amyloid inhibiting drugs?

Posted: 03 Sep 2021 06:21 PM PDT

This is a naive question. I was wondering if anyone could shed some light on it or point me to relevant articles/videos that speaks to this.

Since I presume a amyloid inhibition treatment is far from a novel idea, I was wondering what are the current the challenges with this approach. E.g. how many of these are valid statements? what other high level problems are there?

  • It is largely unknown what regulates amyloid production,
  • It is known that many separate processes produce amyloids, making inhibition a large scale problem,
  • Insufficient knowledge to design something that inhibits amyloids without affecting other biochemical processes,
  • No evidence that inhibting amyloids itself prevents/treats alzheimers

Thanks!

submitted by /u/dumbfrycook
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What does the Higgs Boson image mean?

Posted: 03 Sep 2021 08:48 AM PDT

I got a t-shirt of a higgs boson (this image) and i don't know what it means. I watched videos explaining the higgs field, so i know what a higgs boson is, but do not know how the image relates to it.

submitted by /u/Scaldac
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The CDC says about 80% of people infected with West Nile virus have no symptoms. How do we know the number of people who caught it and never had symptoms?

Posted: 03 Sep 2021 10:50 AM PDT

Is there experimental evidence that fully isolated viruses and bacteria cause illness?

Posted: 03 Sep 2021 03:04 PM PDT

Is anyone aware of a large, or decent size study where a completely isolated virus or bacteria (as in, no other substances or contaminants) are sprayed, injected, or otherwise inserted into a healthy subject and it reliably causes a disease with consistent symptoms?

submitted by /u/Badook777
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