Anonymous
China's Crispr Experiments on human embryos 2016-04-13 00:57:06 Post No.8000282
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China's Crispr Experiments on human embryos 2016-04-13 00:57:06 Post No.8000282
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China's Crispr Experiments on human embryos
Anonymous
2016-04-13 00:57:06
Post No. 8000282
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Gene: CCR5Δ32, an obvious one relating to HIV resistance with some minimal downsides known.
https://www.technologyreview.com/s/601235/chinese-researchers-experiment-with-making-hiv-proof-embryos/
Chinese fertility doctors have tried to make HIV-proof human embryos, but the experiments ended in a bust. The new report is the second time researchers in China revealed that they had a go at making genetically modified human embryos.
http://www.ncbi.nlm.nih.gov/pubmed/27052831
Introducing precise genetic modifications into human 3PN embryos by CRISPR/Cas-mediated genome editing.
By co-injecting Cas9 mRNA, gRNAs, and donor DNA, we successfully introduced the naturally occurring CCR5Δ32 allele into early human 3PN embryos. In the embryos containing the engineered CCR5Δ32 allele, however, the other alleles at the same locus could not be fully controlled because they either remained wild type or contained indel mutations.
CONCLUSIONS:
This work has implications for the development of therapeutic treatments of genetic disorders, and it demonstrates that significant technical issues remain to be addressed. We advocate preventing any application of genome editing on the human germline until after a rigorous and thorough evaluation and discussion are undertaken by the global research and ethics communities.
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Korea can make clones, they just don't because ethics
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>>8000282
niggas need to put some hip genes in this bitch good lord
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>>8000282
>Chinese fertility doctors have tried to make HIV-proof human embryos
what a useless genetic modification...
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I realize that burger is to /sci/ as national socialism is to /pol/, so maybe it's impossible to have a rational
>in b4 heuheuheu rational
discussion about this: Burger claims that [math]\pi[/math] is a "meta-number". What does he mean by this? How can he escape the variety of provably irrational constants that are "unreasonably effective"?
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He's an idiot.
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>>7999999
what a waste
At least Wildberger is confirmed as an idiot
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If you look into his rational geometry book, he defines and uses pi (defined as the value of one of the equivalent definite integrals) and speaks about how we can compute an essentially arbitrary high (but fixed) number of digits of its decimal expansion.
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How does one get from the left part of this equation to the center one? I don't get it because I'm a retard.
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integration by parts?
that's the first thing I'd try and check
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>>7999899
are you gonna say we should plug the infinitesimals ds and dt together and form v,
or is there a simpler derivation that's more rigorous?
Anonymous
What does it take to become an astronaut? 2016-04-12 16:49:32 Post No.7999050
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What does it take to become an astronaut? 2016-04-12 16:49:32 Post No.7999050
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What does it take to become an astronaut?
Anonymous
2016-04-12 16:49:32
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>Do I just need to ace all my STEM subjects?
>Or is there more to it than it seems
Help me out my civilized /sci/
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>>7999050
You're on 4chan, it's already impossible for you to become an astronaut.
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>>7999050
All I know is you need to go to MIT or Harvard to become an astronaut.
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>>7999050
these guys aren't just smart. they are in peak physical condition and are the best humanity has to offer. most are ex military jet pilots and shit. so your feeble neckbeard ass isn't going into space.
integral of f is the area under the graph
but what is integral of xf(x) ?
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The area under the graph of [math]x \longmapsto x\,f(x)[/math].
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>>7998946
x^2f(x)/2 - ∫x^2f'(x)/2 dx
xF(x) - ∫F(x) dx
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If f has a Taylor seriesz it's an equally comfty series
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Have you ever had a dream, wich changed your personality?
What do dreams with us?
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>>7997061
I frequently have nightmares which also happen to be lucid dreams. I am consciously aware but I don't want them to stop, because reality is so much worse.
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I sometimes think it's just one single guy that makes all these chakra dmt pics you see all the time.
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>>7997072
>t I don't want them to stop, because reality is so much worse.
This,
If you really are an academic then you should be able to prove this.
Take your time, I'll wait.
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>>7995787
Can't be proven, but
[math]\Delta 1 \Delta 1 \ge \hbar m[/math]
gives us a lower bound.
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We start with the axiom that by definition x:=x
Hence, by substituting x = 1 into the equation we get 1 := 1 which degenerates into 1 = 1
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>>7995793
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Hi /sci/
which engineering do you study and why?
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chem eng(germany), finishing master this summer
its nice to read about astrophysics or things like LHC, but i wanted to know about my direct enviroment i guess.
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>>7995412
Mechanical
My parents told me to.
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>>7995412
mechanical
my parents told me to
they want me to work for nasa
Hey /sci/, do you think that one can learn quantum mechanics without going to university for it? I'd like to make physics a sort of pasion and am just wondering if it's possible for me to learn quantum mechanics.
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>>7995259
No.
The hundreds of hours of lectures on youtube and the hundreds of textbooks on Amazon are all there to trick you.
In order to learn quantum mechanics you must pay to enroll in a university and have a professor fill up a really big needle with quantum knowledge and inject it directly into your brain.
It's the only way.
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>>7995259
If you haven't figured out how to learn any other type of physics on your own, why would you be able to learn quantum?
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>>7995276
This desu senpai
COULD YOU FLY A HELICOPTER IN THIS TYPE OF CENTRIFUGAL SPACE STATION??? PLEASE EXPLAIN
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>>7990970
Of course. The entire thing is pressurized to 1atm and there is inertial gravity acting on the air and the helicopter (initially.) Once the copter is airborn and begins to change direction, the inertial gravity will be negated. The design of the copter will need to take this into account so it can compensate for this change. A normal helicopter would be able to hover, for a short time, but changing direction and continually hovering will cause it to go out of control eventually. This is because the higher it gets and the longer it hovers, the more the ground below it will rotate away from it. It will then be affected by the air flow. the copter would need to "fly" in the "upstream" direction of the air flow in order to maintain proper flight, but could not reverse direction. Only a copter modified for such an environment could "fly" properly without crashing.
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>>7990981
>the longer it hovers, the more the ground below it will rotate away from it
But why does this not happen on Earth?
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>>7991169
Because helicopters on earth are held in place by real gravity, not artificial gravity.
Does this look like anything other than a bruise? Had t like 5 days now and it doesn't seem to be going away
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Looks bad OP, especially if it isn't going away. Go to a derm
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OMG! That is necrotizing fasciitis. You must amputate your leg immediately.
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Anonymous
Quantum suicide and immortality 2016-04-13 16:20:06 Post No.8001576
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Quantum suicide and immortality 2016-04-13 16:20:06 Post No.8001576
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Quantum suicide and immortality
Anonymous
2016-04-13 16:20:06
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https://en.wikipedia.org/wiki/Quantum_suicide_and_immortality
Is it possible /sci/?
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>>8001576
Test it out and let us know in the next universe.
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Delicious kek
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>>8001578
The thing I'm worried about is, if it's real, how do we fall asleep? I mean your consciousness is gone during slow wave sleep, when I don't revert to a parallel universe where I'm awake. Right?
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It is supposed that we have a decimal system because we have 10 fingers. An alien sees the sum 15+5 and answers correctly 22.
How many fingers does the alien have?
A-10
B-6
C-22
D-8
E-15
P.S. Could you give the answer + the demonstration.
P.S.S. Sorry i'm new here so i don't know if i can ask this here or if there are threads for this questions.
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>>8001388
it's 12
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>>8001388
I got 8.
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>>8001412
tuck your thumbs in and count, everytime you get to your last finger, count it as a multiple of ten.
so
1-2-3-4 5-6-7-10
11-12-13-14 15-16-17-20
21-22
What is the iq of an gorilla
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depends on the gorilla
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Fuck off already.
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>>8001113
higher than that of your avg /sci/ "physicist/mathematician"
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What is [math]\aleph_2[/math]? How is it different from [math]\aleph_1[/math] ?
What would [math]\aleph_{\aleph_{\aleph...}}[/math] be?
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As much as it pains sci to hear this, one or the more recent vsauce videos does a pretty decent amateur treatment of the topic of cardinality
>in b4 REEEEEEEEEEEEEEE
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>>8002372
It's what I saw that made me want to ask this. He gets to [math]\aleph_1[/math] as the set of all reals but leaves off there. I'm trying to figure out how the later cardinalties are different.
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>>8002381
I'm pretty sure the way he explains it in the video is using the powerset of N1. I don't think this powerset is N2 but it proves that there's a set that's larger than N1 out there...then he says some complicated shit that basically means "we can define N2 because math is all about definitions and doing whatever the fuck we want". Good luck getting a better explanation than this without taking a set theory course.