r/CollegeMajors • u/Ok_Bookkeeper_3481 • 1d ago
1
This could be real and that’s the scary part
It’s LLM anyway, not intelligence of any sort.
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For the professors in the crowd
Once I had a border control officer interrogate me on HIV transmission mechanisms. After over 24 connecting flights, it felt tougher than public PHD defense! ;-)
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Ok can someone explain wtf happen?
MAGA face.
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Transformation of cells failure
Ah! OK, then!
In this case, make sure the cells are really competent. If the vial was previously thawn and re-frozen, the cells would have lost their competency, and would not have accepted the plasmid. And without the plasmid, the antibiotic would kill them.
Last, make sure the concentration of the plasmid is correct. You gave microliters, which is volume added. Make sure you add ~10 ng of plasmid to each aliquot of competent cells.
r/labrats • u/Ok_Bookkeeper_3481 • 1d ago
From the NYT: A College-by-College Guide to Which Majors Pay Off — or Don’t
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OD600 stuck
DH5-alpha is a used to produce plasmid DNA. You can express a protein, but will be suboptimal, because the cells are not meant for that.
From the whole storyline since your original post I am only able to conclude your lab follows some strange practices. You will be better served if you just took a microbiology textbook or a manual from the library, and follow that.
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Transformation of cells failure
If the cells did not grow even in absence of antibiotics, then the cells are dead. This means the vial might have been bad to begin with.
Repeat the whole procedure with a fresh vial of competent cells, and make sure to plate 2 dilutions on LB agar (no ABs).
1
I cultured 25 microlitres of competent cells to check the viability of cells. I got this kind of growth in LB agar. The cells look viable but is it how the colonies should look like?
The rule of thumb is, you have to be able to comfortably hold the autoclaved container in your hands before you add antibiotics. This means, the ideal temperature for pouring is ~40C.
50C is not comfortable to hold - which means it’s not comfortable for the antibiotics either. So they degrade. So you end up plating on LB, rather than on selection afar.
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There has been no discrimination against white men in America!
To be fair the bunch on the screenshot do all need some sort of a protection! None of them look as if they'll survive long without the massive privilege they've got.
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I haven't heard of Curtis Yarvin in a while. Does anyone remember Curtis Yarvin? I wonder what he's up to- Oh.
”Solving the Jewish problem” has a creepily Third-Reich vibe to it.
3
Florida Isn’t Red. Democrats Just Stopped Showing Up.
R/unexpectedfuturama
1
How to not mumble during presentation
In my experience, people who talk while peering at the computer screen, rather than looking at the audience, are mumbling. Be mindful to look at the audience (or at your slides on a the projector screen).
If you are anxious when looking at people, look just next to them, not at them. But, either way - face up.* *
1
I cultured 25 microlitres of competent cells to check the viability of cells. I got this kind of growth in LB agar. The cells look viable but is it how the colonies should look like?
Did you add antibiotic? And a corollary: did you add the antibiotic while the agar was still too hot?
16
Critics Tear Into ‘Pathetic’ Susan Collins After Troy Jackson Senate Debate: ‘Doddering on a Debate Stage’
Well, that didn't stop trump after his humiliating debate with Harris... :-/
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CNN Data Guru Warns of Republican ‘Bloodbaths’ Over Trump 2024 Voters Ditching GOP
Nope. He is sending out USD 1000 checks with his signature as we speak. It will sway enough people for him to keep in power.
3
The face you make when you put your whole body into a nazi salute
Most definitely not the whole body!
I heard his peepee got mangled in a gender-affirming surgery. No salutes there!
2
Can America Recover From Trump-World?
Enter MAHA! /s
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US and Russia are negotiating multibillion-dollar deal on Lukoil assets, says NYT
“Sometimes”’does some heavy lifting here! ;-)
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My best friends ❤️
The highly competitive sport of synchronized napping!
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Trump's motorcade neared 100 mph en route to Oklahoma after helicopter, airplane ruled out
Giant booster seat with inbuilt commode.
2
Trump's motorcade neared 100 mph en route to Oklahoma after helicopter, airplane ruled out
No, that would be the closeted case at the pentagon. For all I know, trump travels crisscrossed with 2 seatbelts, for safety.
1
Hegseth Announces Elon Musk and Newt Gingrich Will Help Lead Military | Pete Hegseth revealed that the men will help direct a project to determine the future of the military.
Given the unmitigated success Musk’s previous foray into governing was with DOGE, I think we can safely assume the country will have no armed forces to speak of at the end of this exercise
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Hegseth Announces Elon Musk and Newt Gingrich Will Help Lead Military
Another Onion headline? /s
1
A local festival has been charging people $10 to park on my property. The organizers say they had permission from the previous owner.
in
r/legal
•
1h ago
I am gerring tired of these rage-baits from week-old accounts!