Vaccines: A Measured Response

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From: hbomberguy
Duration: 1.7361111111111112:00:00

What is the science behind the anti-vaccine movement, and is it any good? Let’s find out!

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0:00 - Intro
2:20 - The Easy Version
6:15 - An In-Depth Analysis of the Worst Study Ever Done
22:38 - In Which The Media Gets Everyone Killed
33:03 - How Not To Talk About Autism
36:22 - Andrew Wakefield is a Lying Conman Who Wanted Your Money
52:50 - It Gets Much Worse
1:05:58 - Andrew Wakefield Abused Children For Money
1:16:00 - The Part Where He Loses His License
1:23:23 - CONCLUSION
1:40:16 - Credits

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11 hours ago
Holy shit, I knew Wakefield was a horrible conman but the bonemarrow dude I somehow never heard of.

Edit: Jesus Christ I also missed the child abuse part also somehow.
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How Weaver Birds Evolved to Build Huge Nests

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From: Frankenscience
Duration: 08:00

Weaver birds are skilled nest builders. They can build intricate and elegant nests by looping together blades of grass. In Africa, the social weavers take nest construction even further. Together, a colony can build a huge communal nest in the desert, where they live all year round. But how has this particular behaviour evolved?

BBC's Life of Birds documentary series:
BBC's Life documentary series (episode 5):

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All images and videos used herein are 1) in the public domain, 2) used under a Creative Commons license, 3) used with a license, or 4) used under the parameters of Fair Use law.

Eduardo Merille.

Collias NE & Collias C. Weaverbird nest aggregation and evolution of the compound nest. Auk 1997;94:50–64.
Collias NE. The evolution of nests and nest-building in birds. Integr Comp Biol 1964;4:175–190.
van Dijk RE, et al. The thermoregulatory benefits of the communal nest of sociable weavers Philetairus socius are spatially structured within nests. J Avian Biol 2013;44:102–110.
Medina I. The role of the environment in the evolution of nest shape in Australian passerines. Sci Rep 2019;9:5560.
Price JJ & Griffith SC. Open cup nests evolved from roofed nests
in the early passerines. Proc Biol Sci 2017;284:20162708.
Duursma DE, et al. Variation in avian egg shape and nest structure is explained by climatic conditions. Sci Rep 2018;8:4141.
Perez DM, et al. Climate as an evolutionary driver of nest morphology in birds: a review. Front Ecol Evol 2020; doi: 10.3389/fevo.2020.566018.
Lloyd KJ, et al. Factors affecting the foraging distance and duration of a
colonial bird, the sociable weaver, in a semi-arid environment. Afr J Ecol 2017; doi: 10.1111/aje.12484.

#nature #evolution #birds

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12 hours ago
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First Time Since Early 2020

3 Comments and 8 Shares
Gotten the Ferris wheel operator's attention
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3 days ago
"Installed Software Updates" should be way lower down the list
3 days ago
Washington, DC
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2 public comments
3 days ago
"Coughed without covering my mouth". Thank goodness we're back to normal so I can start ignoring basic hygiene again.
East Helena, MT
4 days ago
Gotten the Ferris wheel operator's attention

Exploding Weed Seeds (28,546 fps Slow Motion)- Smarter Every Day 257

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From: SmarterEveryDay
Duration: 12:00

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Cardamine Hirsuta (Hairy Bittercress)
Arabidopsis Thaliana

The paper I was talking about:
Morphomechanical Innovation Drives Explosive Seed Dispersal
(Hofhuis, Hugo, et al. "Morphomechanical innovation drives explosive seed dispersal." Cell 166.1 (2016): 222-233)

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4 days ago
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A Better Way To Picture Atoms

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From: minutephysics
Duration: 06:00

Thanks to Google for sponsoring a portion of this video!
Support MinutePhysics on Patreon:

This video is about using Bohmian trajectories to visualize the wavefunctions of hydrogen orbitals, rendered in 3D using custom python code in Blender.

A Suggested Interpretation of the Quantum Theory in Terms of "Hidden" Variables. I
David Bohm, Physical Review, Vol 85 No. 2, January 15, 1952

Speakable and Unspeakable in Quantum Mechanics
J. S. Bell

Trajectory construction of Dirac evolution
Peter Holland

The de Broglie-Bohm Causal Interpretation of Quantum Mechanics and its Application to some Simple Systems by Caroline Colijn

Bohmian Trajectories as the Foundation of Quantum Mechanics

The Pilot-Wave Perspective on Quantum Scattering and Tunneling

A Quantum Potential Description of One-Dimensional Time-Dependent Scattering From Square Barriers and Square Wells
Dewdney, Foundations of Physics, VoL 12, No. 1, 1982

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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

Created by Henry Reich

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4 days ago
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Saffron Put to the Test for Alzheimer’s

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The spice saffron is pitted head-to-head against the leading drug for severe Alzheimer’s disease.

What’s the latest on treating memory disorders with the spice saffron? As I discuss in my video Saffron Versus Memantine (Namenda) for Alzheimer’s, “saffron has been widely used in the Persian traditional medicine for memory problems,” but it wasn’t put to the test until a study showed that Alzheimer’s dementia symptoms continued to worsen on placebo but got better on saffron over a 16-week period, as you can see at 0:21 in my video. The researchers concluded that saffron is “safe and effective in mild-to-moderate AD [Alzheimer’s disease] patients,” at least in the short term. What about head-to-head against the leading drug used for such patients? Saffron appeared to work just as well—but with significantly less vomiting, a common side effect of the drug in this study. So, that’s where we were as of 2010. What’s the update?

In 2013, we got the first glimpse of a potential mechanism. Alzheimer’s disease involves “brain nerve cell destruction.” Our brain cells can be killed by the buildup of either tangles or amyloid plaques, where aggregates of a protein called amyloid beta “act as a poison.” But, as you can see at 1:13 in my video, adding crocin, the red pigment found in saffron, significantly reduces this amyloid clumping in a petri dish, which is an effect that can be plainly seen under an electron microscope. So, the component of saffron that makes it so colorful appears to have “the ability to prevent amyloid formation.” What about the tangles? Crocin also seems to be able to block the tangles in vitro, as demonstrated once again with electron microscopy. Perhaps this is why saffron helps in Alzheimer’s disease, but this was just for mild-to-moderate Alzheimer’s. Does that mean you have to catch it early? What about moderate-to-severe Alzheimer’s? 

We didn’t know, until a study compared saffron head-to-head against the leading drug for severe Alzheimer’s. Once again, saffron seemed to work just as well, as you can see at 2:01 in my video. In fact, one might consider saffron worked even better because there haven’t been any serious adverse effects attributed to saffron, whereas the drug is associated with increased risk of sleepiness, weight gain, confusion, hypertension, nervous system disorders, and falling.

The saffron study wasn’t funded by supplement or spice companies—just noncommercial public grants. But, all the studies were done in Iran, which controls about 90 percent of the saffron crop. So, promoting saffron consumption may be of national interest, just like the New Zealand government funds research on kiwifruit—though who else is going to fund studies on a simple spice?

For more on herbal approaches to dementia, check out:

What else can saffron do? See:

In health, 

Michael Greger, M.D.

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5 days ago
If only saffron wasn't as expensive as patented drugs
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