正在加载视频...

视频加载失败

加载此视频时出现问题。这可能是由于临时网络问题，或视频可能不可用。

A DNA double helix molecule made of drones! #AGBT23

Iman Hajirasouliha

2,126 subscribers

65,388 次观看 • 3 年前 •via X (Twitter)

教育科学技术 #AGBT23

Anya Rossi• Live Now

Private livecam show

0 条评论

暂无评论

原始帖子的评论将显示在这里

相关视频

#Aylio Double helix

#Aylio Double helix

쏭

278,365 次观看 • 4 天前

They are not an unlikely duo, but rather a perfect, complementary pair! DNA and RNA are very similar, but they have unique biological roles. RNA and DNA are both a type of molecule called a nucleic acid, but their structures are different in subtle ways.

They are not an unlikely duo, but rather a perfect, complementary pair! DNA and RNA are very similar, but they have unique biological roles. RNA and DNA are both a type of molecule called a nucleic acid, but their structures are different in subtle ways.

National Human Genome Research Institute

16,528 次观看 • 2 年前

Most chiral molecules arise from carbons being bonded to 4 different atoms, which are called sterocenters. The makes the molecule have a different mirror image that cannot arise from simple rotation. But, you can have chiral molecules not from stereocenters. You can have chirality that doesn't come from a single point in the molecule. It comes from some global property. The classic example is helicene, which doesn't have any stereocenters, but has chirality because of hits helical structure. This means you cannot capture this molecule with a graph, and thus SMILES or a string representation cannot capture this. Of course natural language comes to the rescue (just say in words if it's left-handed or right-handed helix), but it's an interesting failure mode for viewing molecules as just a graph. Another example of a molecule with helical chirality is DNA. DNA is actually chiral in two ways, which is kind of confusing. It has both helical structure and stereocenters. You won't find the stereocenters ever flipped, but left-handed helical DNA can exist (called Z-DNA). Interestingly, making the flipped stereocenter of DNA could be part of an entire mirror organism (mirror RNA, DNA, AAs, sugars) that would then be potentially invisible to our immune systems. This has been recently proposed as a "mechanism" for how a runaway AI system could cause harm to Earth. I find it to be a pretty tedious and difficult way to cause harm, but it is intellectually cool. Anyway - this came up in a PhD defense and I have a lot of arcane knowledge about this I wanted to dump.

Most chiral molecules arise from carbons being bonded to 4 different atoms, which are called sterocenters. The makes the molecule have a different mirror image that cannot arise from simple rotation. But, you can have chiral molecules not from stereocenters. You can have chirality that doesn't come from a single point in the molecule. It comes from some global property. The classic example is helicene, which doesn't have any stereocenters, but has chirality because of hits helical structure. This means you cannot capture this molecule with a graph, and thus SMILES or a string representation cannot capture this. Of course natural language comes to the rescue (just say in words if it's left-handed or right-handed helix), but it's an interesting failure mode for viewing molecules as just a graph. Another example of a molecule with helical chirality is DNA. DNA is actually chiral in two ways, which is kind of confusing. It has both helical structure and stereocenters. You won't find the stereocenters ever flipped, but left-handed helical DNA can exist (called Z-DNA). Interestingly, making the flipped stereocenter of DNA could be part of an entire mirror organism (mirror RNA, DNA, AAs, sugars) that would then be potentially invisible to our immune systems. This has been recently proposed as a "mechanism" for how a runaway AI system could cause harm to Earth. I find it to be a pretty tedious and difficult way to cause harm, but it is intellectually cool. Anyway - this came up in a PhD defense and I have a lot of arcane knowledge about this I wanted to dump.

Andrew White 🐦‍⬛

15,039 次观看 • 5 个月前

a smol molecule

a smol molecule

smol silly cat

73,462 次观看 • 1 年前

🚨 BREAKING: Scientists just found a SPECIFIC sugar molecule made by gut bacteria that appears to TRIGGER ALS and dementia. 70% of ALS/FTD patients had it. Only 33% of healthy people did. And they found a way to STOP it. 🧵

🚨 BREAKING: Scientists just found a SPECIFIC sugar molecule made by gut bacteria that appears to TRIGGER ALS and dementia. 70% of ALS/FTD patients had it. Only 33% of healthy people did. And they found a way to STOP it. 🧵

Harshi Peiris, Ph.D.

380,791 次观看 • 4 个月前

New double layer suit made of thin beachball vinyl

New double layer suit made of thin beachball vinyl

Candy Coated

10,705 次观看 • 1 年前

#Breaking: #Indian military has shot-down a dozen of #Turkish made YIHA-III suicide drones of the #Pakistan Army today. These drones were recently delivered by #Turkey to #Pakistan to be used immediately against #India.

#Breaking: #Indian military has shot-down a dozen of #Turkish made YIHA-III suicide drones of the #Pakistan Army today. These drones were recently delivered by #Turkey to #Pakistan to be used immediately against #India.

Babak Taghvaee - The Crisis Watch

20,412 次观看 • 1 年前

Hi SHATTA WALE make sure you conduct a double DNA testing after the baby arrives. Per the history of your mega toned woman, she can’t be trusted. Look sharp

Hi SHATTA WALE make sure you conduct a double DNA testing after the baby arrives. Per the history of your mega toned woman, she can’t be trusted. Look sharp

BONGO IDEAS ™

591,993 次观看 • 1 年前

🇺🇦🇷🇺 At this moment, Moscow is being attacked by a large number of Ukrainian drones. Video is made Grok AI

🇺🇦🇷🇺 At this moment, Moscow is being attacked by a large number of Ukrainian drones. Video is made Grok AI

Visioner

51,484 次观看 • 4 个月前

made this non-fnaf related (finally) animation yesterday, a murder drones animation!!!! YIPEEEEEEE!!!!! :DDDDD

made this non-fnaf related (finally) animation yesterday, a murder drones animation!!!! YIPEEEEEEE!!!!! :DDDDD

Toyless 🏳️‍🌈🏳️‍⚧️ (COMMISSIONS OPEN)

63,511 次观看 • 1 年前

Seeing a "bootleg" edit of my streams jump into all-out sprite animations made me do a double take 😮 SO COOL

Seeing a "bootleg" edit of my streams jump into all-out sprite animations made me do a double take 😮 SO COOL

Lythero 🎮

74,706 次观看 • 2 年前

Briar Helix | In-game Showcase New Effect | Briar Helix Below is an in-game showcase of the brand-new effect [Briar Helix]. Phoxhunters, please take a look! *[Briar Helix] applies to the Whipblade Technique Demon Wedge [Voidpiercer] ✦How to Obtain: The [Briar Helix] effect is now available. Phoxhunters can exchange for it in the [Shop] using [Iridescent Prism]. ✦ Download Duet Night Abyss #DuetNightAbyss

DuetNightAbyss

10,679 次观看 • 10 天前

Check in w/ 4 หนุ่ม “Double Helix” ✨ ขอมาขี้แงพร้อมอ้อนแฟน ๆ ชาวไทยทุกคนแล้วค้าบ 🥺🤲💘 #AydenSng #LyuSitong #FaXuange #HeJiashu #Yriety

Check in w/ 4 หนุ่ม “Double Helix” ✨ ขอมาขี้แงพร้อมอ้อนแฟน ๆ ชาวไทยทุกคนแล้วค้าบ 🥺🤲💘 #AydenSng #LyuSitong #FaXuange #HeJiashu #Yriety

Yriety Official

46,983 次观看 • 1 个月前

⚡️🇵🇰 India launched a Dozen of Israeli-made Harop Kamikaze Drones on multiple locations in Pakistan, including air defense bataillon in Watson, Lahore

⚡️🇵🇰 India launched a Dozen of Israeli-made Harop Kamikaze Drones on multiple locations in Pakistan, including air defense bataillon in Watson, Lahore

MenchOsint

254,122 次观看 • 1 年前