A new way to study the brain's invisible secrets | Ed Boyden

147,320 views ・ 2016-08-29

TED


Please double-click on the English subtitles below to play the video.

Prevodilac: Ivana Krivokuća Lektor: Tijana Mihajlović
00:12
Hello, everybody.
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Zdravo svima.
00:14
I brought with me today a baby diaper.
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Doneo sam danas pelenu za bebe.
00:18
You'll see why in a second.
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Videćete uskoro zašto.
00:20
Baby diapers have interesting properties.
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Pelene za bebe imaju zanimljiva svojstva.
00:22
They can swell enormously when you add water to them,
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Mogu da se izuzetno naduju kada im dodate vode,
00:25
an experiment done by millions of kids every day.
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što je eksperiment koji sprovode milioni dece svakoga dana.
00:28
(Laughter)
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(Smeh)
00:29
But the reason why
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Međutim, razlog tome
00:30
is that they're designed in a very clever way.
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je to što su osmišljene na vrlo pametan način.
00:33
They're made out of a thing called a swellable material.
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Napravljene su od nečeg što se zove upijajući materijal.
00:35
It's a special kind of material that, when you add water,
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To je specijalna vrsta materijala koji se, kada mu dodate vodu, znatno naduje,
00:38
it will swell up enormously,
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možda hiljadu puta po veličini.
00:40
maybe a thousand times in volume.
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00:42
And this is a very useful, industrial kind of polymer.
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To je vrlo korisna, industrijska vrsta polimera.
00:45
But what we're trying to do in my group at MIT
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Međutim, ono što pokušavamo u mojoj grupi na MIT-u
00:48
is to figure out if we can do something similar to the brain.
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je da otkrijemo da li možemo da nešto slično uradimo sa mozgom,
00:51
Can we make it bigger,
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da li ga možemo povećati,
00:52
big enough that you can peer inside
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dovoljno da možete da zavirite unutra
00:54
and see all the tiny building blocks, the biomolecules,
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i vidite sve te sićušne sastavne delove, biomolekule,
00:57
how they're organized in three dimensions,
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kako su organizovani u tri dimenzije,
00:59
the structure, the ground truth structure of the brain, if you will?
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da direktno steknete uvid u strukturu mozga, ako hoćete.
01:02
If we could get that,
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Ako bismo to uspeli,
01:03
maybe we could have a better understanding of how the brain is organized
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možda bismo bolje razumeli kako je mozak organizovan
01:07
to yield thoughts and emotions
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tako da proizvodi misli, osećanja,
01:09
and actions and sensations.
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radnje i osećaje.
01:10
Maybe we could try to pinpoint the exact changes in the brain
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Možda bismo mogli da pokušamo da odredimo upravo one promene u mozgu
01:14
that result in diseases,
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koje imaju za posledicu bolesti
01:16
diseases like Alzheimer's and epilepsy and Parkinson's,
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kao što su Alchajmerova, epilepsija i Parkinsonova bolest,
01:19
for which there are few treatments, much less cures,
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za koje ima malo lečenja, a još manje lekova,
01:22
and for which, very often, we don't know the cause or the origins
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i za koje vrlo često ne znamo uzrok, poreklo,
01:25
and what's really causing them to occur.
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niti šta zaista dovodi do toga da se jave.
01:28
Now, our group at MIT
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Naša grupa na MIT-u
01:30
is trying to take a different point of view
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pokušava da zauzme drugačiju tačku gledišta
01:33
from the way neuroscience has been done over the last hundred years.
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od načina na koji su neuronauke radile poslednjih sto godina.
01:36
We're designers. We're inventors.
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Mi smo programeri. Mi smo pronalazači.
01:37
We're trying to figure out how to build technologies
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Pokušavamo da otkrijemo kako da izgradimo tehnologije
01:40
that let us look at and repair the brain.
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koje nam dozvoljavaju da posmatramo mozak i popravimo ga.
01:42
And the reason is,
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Razlog tome je to što je mozak neverovatno komplikovan.
01:44
the brain is incredibly, incredibly complicated.
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01:47
So what we've learned over the first century of neuroscience
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Ono što smo naučili tokom prvog veka neuronauka
je da je mozak veoma komplikovana mreža
01:50
is that the brain is a very complicated network,
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01:52
made out of very specialized cells called neurons
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sačinjena od vrlo specijalizovanih ćelija
zvanih neuroni sa vrlo složenom geometrijom,
01:55
with very complex geometries,
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01:56
and electrical currents will flow through these complexly shaped neurons.
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a električna struja će proticati kroz te neurone složenog oblika.
02:01
Furthermore, neurons are connected in networks.
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Osim toga, neuroni se povezuju u mreže.
02:04
They're connected by little junctions called synapses that exchange chemicals
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Povezani su malim spojevima zvanim sinapse koje razmenjuju hemikalije
02:08
and allow the neurons to talk to each other.
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i omogućavaju neuronima da međusobno razgovaraju.
02:10
The density of the brain is incredible.
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Gustina mozga je neverovatna.
02:12
In a cubic millimeter of your brain,
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U kubnom milimetru vašeg mozga
02:14
there are about 100,000 of these neurons
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postoji oko 100 000 ovih neurona
02:17
and maybe a billion of those connections.
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i možda milijardu tih veza.
02:20
But it's worse.
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Međutim, još je gore od toga.
02:22
So, if you could zoom in to a neuron,
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Tako, ako biste uveličali neuron -
02:24
and, of course, this is just our artist's rendition of it.
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a naravno, ovo je samo umetnički prikaz -
ono što biste videli jesu hiljade vrsta biomolekula,
02:27
What you would see are thousands and thousands of kinds of biomolecules,
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02:31
little nanoscale machines organized in complex, 3D patterns,
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male mašine na nano nivou organizovane u složene 3D obrasce,
02:36
and together they mediate those electrical pulses,
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a oni zajedno posreduju između tih električnih impulsa,
02:38
those chemical exchanges that allow neurons to work together
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tih hemijskih razmena koje omogućavaju neuronima da sarađuju
02:42
to generate things like thoughts and feelings and so forth.
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da bi proizveli stvari poput misli, osećanja i tako dalje.
02:46
Now, we don't know how the neurons in the brain are organized
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Ne znamo kako su neuroni organizovani u mozgu
02:50
to form networks,
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tako da formiraju mreže
02:51
and we don't know how the biomolecules are organized
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i ne znamo kako se biomolekuli organizuju
02:53
within neurons
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unutar neurona
da bi formirali te složene, organizovane mašine.
02:55
to form these complex, organized machines.
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02:57
If we really want to understand this,
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Ako zaista želimo da ovo razumemo,
02:59
we're going to need new technologies.
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biće nam potrebne nove tehnologije.
03:01
But if we could get such maps,
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Međutim, kada bismo dobili takve mape,
03:03
if we could look at the organization of molecules and neurons
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kada bismo mogli da sagledamo organizaciju molekula i neurona,
03:06
and neurons and networks,
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neurona i mreža,
03:07
maybe we could really understand how the brain conducts information
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možda bismo zaista razumeli kako mozak upravlja informacijama
03:11
from sensory regions,
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iz senzornih oblasti,
03:12
mixes it with emotion and feeling,
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pomeša ih sa emocijama i osećanjima
03:14
and generates our decisions and actions.
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i proizvodi naše odluke i postupke.
03:17
Maybe we could pinpoint the exact set of molecular changes that occur
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Možda bismo mogli da tačno utvrdimo skup molekularnih promena koje se dešavaju
03:20
in a brain disorder.
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pri poremećajima mozga.
03:22
And once we know how those molecules have changed,
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Kada jednom saznamo kako su se ti molekuli promenili,
03:25
whether they've increased in number or changed in pattern,
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bilo da su se brojčano povećali ili im se promenio obrazac,
03:27
we could use those as targets for new drugs,
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možemo ih iskoristiti kao mete za nove lekove,
03:30
for new ways of delivering energy into the brain
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za nove načine dopremanja energije u mozak
03:33
in order to repair the brain computations that are afflicted
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da bismo popravili proračune mozga
koji su pogođeni kod pacijenata koji boluju od poremećaja mozga.
03:36
in patients who suffer from brain disorders.
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03:39
We've all seen lots of different technologies over the last century
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Svi smo tokom proteklog veka videli mnogo različitih tehnologija
koje nastoje da se suoče sa ovim.
03:43
to try to confront this.
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03:44
I think we've all seen brain scans
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Mislim da smo svi videli skeniranja mozga
03:46
taken using MRI machines.
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pomoću mašina za magnetnu rezonancu.
03:48
These, of course, have the great power that they are noninvasive,
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One, svakako, imaju veliku snagu u tome što su neinvazivne,
03:51
they can be used on living human subjects.
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mogu se koristiti na živim ljudskim subjektima.
03:54
But also, they're spatially crude.
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Međutim, takođe su prostorno nerafinirane.
03:56
Each of these blobs that you see, or voxels, as they're called,
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Svaka od ovih mrlja koje vidite, ili voksela, kako se zovu,
03:59
can contain millions and millions of neurons.
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može sadržati milione neurona.
04:02
So it's not at the level of resolution
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Dakle, nemaju nivo rezolucije
na kome se mogu precizno odrediti molekularne promene koje se javljaju
04:04
where it can pinpoint the molecular changes that occur
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04:06
or the changes in the wiring of these networks
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ili promene povezivanja ovih mreža
04:09
that contributes to our ability to be conscious and powerful beings.
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koje doprinose našoj sposobnosti da budemo svesna i moćna bića.
04:13
At the other extreme, you have microscopes.
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Na drugom kraju, imate mikroskope.
Mikroskopi će, naravno, koristiti svetlo za posmatranje sićušnih stvari.
04:17
Microscopes, of course, will use light to look at little tiny things.
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04:20
For centuries, they've been used to look at things like bacteria.
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Vekovima su korišćeni za posmatranje stvari poput bakterija.
04:23
For neuroscience,
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Za neuronauke,
04:24
microscopes are actually how neurons were discovered in the first place,
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pomoću mikroskopa su neuroni zapravo prvobitno otkriveni
pre oko 130 godina.
04:28
about 130 years ago.
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04:29
But light is fundamentally limited.
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Međutim, svetlo je suštinski ograničeno.
04:31
You can't see individual molecules with a regular old microscope.
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Ne možete videti pojedinačne molekule običnim starim mikroskopom.
04:35
You can't look at these tiny connections.
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Ne možete videti ove sićušne veze.
04:37
So if we want to make our ability to see the brain more powerful,
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Ako želimo da pojačamo našu sposobnost da vidimo mozak,
04:41
to get down to the ground truth structure,
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da dođemo do direktnog uvida u strukturu,
04:43
we're going to need to have even better technologies.
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biće nam potrebne još bolje tehnologije.
04:47
My group, a couple years ago, started thinking:
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Moja grupa je pre par godina počela da razmišlja:
04:49
Why don't we do the opposite?
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„Zašto ne uradimo suprotno?
04:51
If it's so darn complicated to zoom in to the brain,
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Ako je toliko komplikovano uveličati sliku mozga,
04:53
why can't we make the brain bigger?
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zašto ne uvećamo mozak?
04:56
It initially started
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Najpre je počelo
04:57
with two grad students in my group, Fei Chen and Paul Tillberg.
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sa dva studenta u mojoj grupi, Feijem Čenom i Polom Tilbergom.
05:00
Now many others in my group are helping with this process.
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Sada mnogi drugi u mojoj grupi pomažu u ovom procesu.
Rešili smo da probamo da otkrijemo da li možemo da uzmemo polimere,
05:03
We decided to try to figure out if we could take polymers,
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05:05
like the stuff in the baby diaper,
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kao ono u peleni za bebe,
05:07
and install it physically within the brain.
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i da ih fizički ugradimo u mozak.
05:09
If we could do it just right, and you add water,
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Ako to sprovedete baš kako treba i dodate vode,
05:11
you can potentially blow the brain up
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potencijalno možete uvećati mozak
05:13
to where you could distinguish those tiny biomolecules from each other.
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do tačke u kojoj možete međusobno razlikovati te male biomolekule.
Možete videti te veze i dobiti mape mozga.
05:17
You would see those connections and get maps of the brain.
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05:19
This could potentially be quite dramatic.
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To bi potencijalno moglo biti prilično dramatično.
05:22
We brought a little demo here.
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Doneli smo malu demonstraciju ovde.
05:25
We got some purified baby diaper material.
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Imamo malo prečišćenog materijala za pelene za bebe.
05:28
It's much easier just to buy it off the Internet
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Mnogo je lakše samo ga kupiti preko interneta
05:30
than to extract the few grains that actually occur in these diapers.
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nego izvući nekoliko zrna koja zapravo postoje u pelenama.
05:33
I'm going to put just one teaspoon here
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Staviću ovde samo jednu kašičicu
05:36
of this purified polymer.
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prečišćenog polimera.
05:39
And here we have some water.
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A ovde imamo malo vode.
05:41
What we're going to do
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Ono što ćemo da uradimo
05:42
is see if this teaspoon of the baby diaper material
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jeste da vidimo da li ova kašičica materijala pelene za bebe
05:45
can increase in size.
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može da se poveća.
05:48
You're going to see it increase in volume by about a thousandfold
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Videćete kako mu se povećava obim oko hiljadu puta
05:52
before your very eyes.
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pred vašim očima.
06:01
I could pour much more of this in there,
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Mogao bih da sipam mnogo više ovoga,
06:03
but I think you've got the idea
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ali mislim da imate predstavu
da je ovo veoma zanimljiv molekul
06:05
that this is a very, very interesting molecule,
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06:07
and if can use it in the right way,
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i ako ga iskoristimo na pravi način,
06:09
we might be able to really zoom in on the brain
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mogli bismo zaista uveličati sliku mozga
06:11
in a way that you can't do with past technologies.
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na način na koji to ne možete uraditi pomoću prethodnih tehnologija.
06:15
OK. So a little bit of chemistry now.
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U redu. Sada malo hemije.
06:17
What's going on in the baby diaper polymer?
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Šta se dešava u polimeru u pelenama za bebe?
06:19
If you could zoom in,
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Ako biste ga uvećali,
06:21
it might look something like what you see on the screen.
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mogli biste videti nešto poput onoga što vidite na ekranu.
06:24
Polymers are chains of atoms arranged in long, thin lines.
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Polimeri su lanci atoma poređani u duge, tanke linije.
06:28
The chains are very tiny,
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Lanci su vrlo mali,
06:30
about the width of a biomolecule,
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otpilike širine biomolekula,
06:31
and these polymers are really dense.
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a ti polimeri su veoma gusti.
06:33
They're separated by distances
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Odvojeni su rastojanjima
06:35
that are around the size of a biomolecule.
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koja su otpilike veličine biomolekula.
06:37
This is very good
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To je veoma dobro
06:38
because we could potentially move everything apart in the brain.
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jer bismo potencijalno mogli da razdvojimo sve u mozgu.
06:41
If we add water, what will happen is,
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Ako dodamo vodu,
desiće se da će upijajući materijal apsorbovati vodu,
06:43
this swellable material is going to absorb the water,
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06:46
the polymer chains will move apart from each other,
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lanci polimera će se međusobno razdvojiti
06:48
and the entire material is going to become bigger.
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i celokupni materijal će postati veći.
06:51
And because these chains are so tiny
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Zato što su lanci tako mali
06:53
and spaced by biomolecular distances,
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i odvojeni biomolekularnim rastojanjima,
06:55
we could potentially blow up the brain
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potencijalno bismo mogli uvećati mozak
06:57
and make it big enough to see.
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i učiniti ga dovoljno velikim da vidimo.
07:00
Here's the mystery, then:
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Evo u čemu je misterija -
07:01
How do we actually make these polymer chains inside the brain
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kako da zapravo napravimo te lance polimera u mozgu
07:04
so we can move all the biomolecules apart?
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tako da možemo da razdvojimo sve biomolekule?
Ako bismo to uspeli,
07:07
If we could do that,
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možda bismo mogli da dobijemo mape direktnog uvida u mozak.
07:08
maybe we could get ground truth maps of the brain.
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07:10
We could look at the wiring.
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Mogli bismo da sagledamo mrežu.
07:12
We can peer inside and see the molecules within.
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Mogli bismo da zavirimo unutra i vidimo molekule.
07:15
To explain this, we made some animations
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Da bismo ovo objasnili, napravili smo animacije
07:18
where we actually look at, in these artist renderings,
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gde zapravo gledamo na umetničkim prikazima
07:21
what biomolecules might look like and how we might separate them.
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kako bi biomolekuli mogli izgledati i kako bismo ih mogli razdvojiti.
07:24
Step one: what we'd have to do, first of all,
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Prvi korak - morali bismo da, najpre,
07:27
is attach every biomolecule, shown in brown here,
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prikačimo svaki biomolekul, prikazan braon bojom ovde,
07:30
to a little anchor, a little handle.
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za malo sidro, malu dršku.
07:32
We need to pull the molecules of the brain apart from each other,
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Morali bismo da molekule odvojimo jedne od drugih,
07:35
and to do that, we need to have a little handle
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a da bismo to uradili, potrebna nam je mala drška
07:38
that allows those polymers to bind to them
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koja omogućava polimerima da se vežu
07:40
and to exert their force.
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i da primene svoju snagu.
07:43
Now, if you just take baby diaper polymer and dump it on the brain,
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Ako samo uzmete polimer iz pelene za bebe i bacite ga na mozak,
07:46
obviously, it's going to sit there on top.
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očigledno, stajaće tu na vrhu.
07:48
So we need to find a way to make the polymers inside.
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Dakle, potrebno je da nađemo način da smestimo polimere unutra.
07:51
And this is where we're really lucky.
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Po tom pitanju baš imamo sreće.
07:52
It turns out, you can get the building blocks,
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Ispostavilo se da možete da uzmete sastavne delove,
07:55
monomers, as they're called,
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monomere, kako se zovu,
07:56
and if you let them go into the brain
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pa ako ih pustite da uđu u mozak
07:58
and then trigger the chemical reactions,
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i zatim pokrenete hemijske reakcije,
08:00
you can get them to form those long chains,
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možete da ih navedete da formiraju duge lance,
08:03
right there inside the brain tissue.
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upravo unutar moždanog tkiva.
08:05
They're going to wind their way around biomolecules
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Obmotaće se oko biomolekula
08:07
and between biomolecules,
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i između biomolekula,
08:08
forming those complex webs
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formirajući kompleksne mreže
08:10
that will allow you, eventually, to pull apart the molecules
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koje će vam dozvoliti da, na kraju, razdvojite molekule
08:13
from each other.
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jedne od drugih.
08:14
And every time one of those little handles is around,
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Svaki put kada je prisutna jedna od tih malih drški,
08:17
the polymer will bind to the handle, and that's exactly what we need
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polimer će se vezati za nju, a to je upravo ono što nam treba
08:21
in order to pull the molecules apart from each other.
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da bismo međusobno razdvojili molekule.
08:23
All right, the moment of truth.
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U redu, trenutak istine.
08:25
We have to treat this specimen
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Moramo delovati na ovaj uzorak hemikalijom
08:27
with a chemical to kind of loosen up all the molecules from each other,
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da bismo nekako otpustili molekule jedne od drugih,
08:31
and then, when we add water,
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a zatim, kada dodamo vodu,
08:32
that swellable material is going to start absorbing the water,
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taj upijajući materijal će početi da apsorbuje vodu,
08:35
the polymer chains will move apart,
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lanci polimera će se razdvojiti,
08:37
but now, the biomolecules will come along for the ride.
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ali će se sada biomolekuli pridružiti.
08:40
And much like drawing a picture on a balloon,
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Kao kada nacrtate sliku na balonu,
08:42
and then you blow up the balloon,
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a zatim nadujete balon -
08:44
the image is the same,
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slika je ista,
08:45
but the ink particles have moved away from each other.
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ali su se čestice mastila međusobno razdvojile.
08:48
And that's what we've been able to do now, but in three dimensions.
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To je ono što smo uspeli da uradimo sada, ali u tri dimenzije.
08:51
There's one last trick.
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Postoji još jedan trik.
08:53
As you can see here,
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Kao što možete videti ovde,
08:54
we've color-coded all the biomolecules brown.
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sve biomolekule smo označili braon bojom.
08:56
That's because they all kind of look the same.
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To je zato što svi nekako izgledaju isto.
08:59
Biomolecules are made out of the same atoms,
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Biomolekuli su sačinjeni od istih atoma,
09:01
but just in different orders.
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samo imaju različit redosled.
09:03
So we need one last thing
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Potrebna nam je još samo jedna stvar da bismo ih učinili vidljivim.
09:05
in order to make them visible.
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09:06
We have to bring in little tags,
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Moramo da unesemo male oznake,
09:08
with glowing dyes that will distinguish them.
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kao svetleće boje po kojima će se raspoznavati.
09:11
So one kind of biomolecule might get a blue color.
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Tako jedna vrsta biomolekula može dobiti plavu boju,
09:14
Another kind of biomolecule might get a red color.
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druga vrsta biomolekula može dobiti crvenu boju
09:16
And so forth.
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i tako dalje.
09:17
And that's the final step.
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To je poslednji korak.
09:19
Now we can look at something like a brain
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Sada možemo pogledati nešto kao što je mozak
09:21
and look at the individual molecules,
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i sagledati pojedinačne molekule,
09:23
because we've moved them far apart enough from each other
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jer smo ih dovoljno međusobno razdvojili
da ih možemo razlikovati.
09:26
that we can tell them apart.
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09:27
So the hope here is that we can make the invisible visible.
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Ovde postoji nada da možemo nevidljivo učiniti vidljivim.
09:30
We can turn things that might seem small and obscure
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Možemo izmeniti stvari koje mogu delovati malo i nejasno
09:33
and blow them up
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i uvećati ih
09:34
until they're like constellations of information about life.
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sve dok ne postanu poput sazvežđa informacija o životu.
09:37
Here's an actual video of what it might look like.
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Evo stvarnog snimka toga kako to može izgledati.
09:40
We have here a little brain in a dish --
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Ovde imamo malo mozga u posudi,
09:42
a little piece of a brain, actually.
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komadić mozga, zapravo.
09:44
We've infused the polymer in,
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Ubrizgali smo polimer u njega
09:45
and now we're adding water.
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i sada dodajemo vodu.
09:47
What you'll see is that, right before your eyes --
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Videćete kako će pred vašim očima -
09:49
this video is sped up about sixtyfold --
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snimak je ubrzan otprilike šest puta -
09:51
this little piece of brain tissue is going to grow.
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ovaj komadić moždanog tkiva porasti.
09:54
It can increase by a hundredfold or even more in volume.
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Može se povećati stotinu puta ili više u obimu.
09:57
And the cool part is, because those polymers are so tiny,
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Zanimljiv deo je u tome što, zato što su ti polimeri tako mali,
10:00
we're separating biomolecules evenly from each other.
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jednako razdvajamo biomolekule međusobno.
10:03
It's a smooth expansion.
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To je ravnomerno širenje.
10:04
We're not losing the configuration of the information.
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Ne gubimo raspored informacija.
10:07
We're just making it easier to see.
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Samo olakšavamo da se vide.
10:11
So now we can take actual brain circuitry --
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Sada možemo uzeti moždane puteve -
10:13
here's a piece of the brain involved with, for example, memory --
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evo dela mozga koji je uključen, na primer, u pamćenje -
10:16
and we can zoom in.
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i možemo ga uveličati.
10:17
We can start to actually look at how circuits are configured.
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Moždamo početi da sagledavamo kako su putevi konfigurisani.
10:20
Maybe someday we could read out a memory.
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Možda ćemo jednog dana moći da čitamo sećanja.
10:22
Maybe we could actually look at how circuits are configured
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Možda bismo mogli da zaista vidimo kako su putevi podešeni
10:25
to process emotions,
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da bi obrađivali emocije,
10:26
how the actual wiring of our brain is organized
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kako je organizovana ta umreženost našeg mozga
10:29
in order to make us who we are.
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da bi nas učinila onakvima kakvi smo.
10:32
And of course, we can pinpoint, hopefully,
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Naravno, možemo odrediti, nadajmo se,
10:34
the actual problems in the brain at a molecular level.
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stvarne probleme u mozgu na molekularnom nivou.
10:37
What if we could actually look into cells in the brain
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Šta ako bismo mogli da pogledamo u ćelije mozga i otkrijemo -
10:40
and figure out, wow, here are the 17 molecules that have altered
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vau, evo 17 molekula koji su izmenjeni
10:43
in this brain tissue that has been undergoing epilepsy
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u ovom moždanom tkivu koje prolazi kroz epilepsiju
10:46
or changing in Parkinson's disease
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ili promene zbog Parkinsonove bolesti ili su na neki drugi način izmenjeni?
10:48
or otherwise being altered?
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10:50
If we get that systematic list of things that are going wrong,
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Ako dobijemo tu sistematičnu listu stvari koje idu po zlu,
10:53
those become our therapeutic targets.
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one postaju naše mete u terapiji.
10:55
We can build drugs that bind those.
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Možemo napraviti lekove da se vežu za njih.
10:57
We can maybe aim energy at different parts of the brain
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Možda možemo usmeriti energiju na različite delove mozga
10:59
in order to help people with Parkinson's or epilepsy
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kako bismo pomogli ljudima sa Parkinsonovom bolešću, epilepsijom
11:02
or other conditions that affect over a billion people
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ili drugim stanjima koja pogađaju više od milijardu ljudi širom sveta.
11:04
around the world.
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11:07
Now, something interesting has been happening.
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Nešto zanimljivo se dešavalo.
11:09
It turns out that throughout biomedicine,
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Ispostavilo se da u okviru biomedicine
11:12
there are other problems that expansion might help with.
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postoje drugi problemi u vezi sa kojima širenje može pomoći.
11:14
This is an actual biopsy from a human breast cancer patient.
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Ovo je stvarna biopsija od pacijenta sa rakom dojke.
11:18
It turns out that if you look at cancers,
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Ispostavilo se da, ako pogledate rak,
11:20
if you look at the immune system,
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ako pogledate imuni sistem,
11:22
if you look at aging, if you look at development --
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starenje, razvoj -
11:24
all these processes are involving large-scale biological systems.
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svi ti procesi podrazumevaju biološke sisteme velikih razmera.
11:29
But of course, the problems begin with those little nanoscale molecules,
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Međutim, naravno, problem počinje sa tim malim molekulima na nano nivou,
11:33
the machines that make the cells and the organs in our body tick.
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mašinama koje čine da ćelije i organi u našem telu funkcionišu.
11:37
So what we're trying to do now is to figure out
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Stoga pokušavamo da sada otkrijemo
11:39
if we can actually use this technology to map the building blocks of life
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da li možemo zaista koristiti ovu tehnologiju
da bismo mapirali sastavne delove života u širokom spektru oboljenja.
11:43
in a wide variety of diseases.
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11:44
Can we actually pinpoint the molecular changes in a tumor
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Možemo li zaista odrediti molekularne promene kod tumora
11:47
so that we can actually go after it in a smart way
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tako da možemo da ga napadnemo na pametan način
11:50
and deliver drugs that might wipe out exactly the cells that we want to?
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i dostavimo lekove koji bi mogle uništiti upravo one ćelije koje želimo?
11:54
You know, a lot of medicine is very high risk.
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Znate, dobar deo medicine je veoma rizičan.
11:56
Sometimes, it's even guesswork.
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Ponekad čak podrazumeva nagađanje.
11:58
My hope is we can actually turn what might be a high-risk moon shot
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Moja je nada da možemo pretvoriti
ono što može biti visoko rizičan poduhvat na Mesec
12:02
into something that's more reliable.
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u nešto što je pouzdanije.
12:04
If you think about the original moon shot,
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Ako razmislite
o prvobitnom poduhvatu na Mesec, kada su zapravo sleteli na Mesec,
12:06
where they actually landed on the moon,
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12:08
it was based on solid science.
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zasnovan je na čvrstoj nauci.
12:09
We understood gravity;
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Razumeli smo gravitaciju,
12:11
we understood aerodynamics.
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razumeli smo aerodinamiku.
12:12
We knew how to build rockets.
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Znali smo kako da napravimo rakete.
12:14
The science risk was under control.
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Naučni rizik je bio pod kontrolom.
12:16
It was still a great, great feat of engineering.
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Ipak je to bio veliki podvig inženjerstva.
12:19
But in medicine, we don't necessarily have all the laws.
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Međutim, u medicini, nemamo nužno sve zakone.
12:22
Do we have all the laws that are analogous to gravity,
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Da li imamo sve zakone koji su analogni gravitaciji,
12:25
that are analogous to aerodynamics?
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koji su analogni aerodinamici?
12:27
I would argue that with technologies
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Tvrdim da ih sa tehnologijama
12:29
like the kinds I'm talking about today,
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poput onih o kojima govorim danas,
12:31
maybe we can actually derive those.
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možda zapravo možemo proizvesti.
Možemo napraviti mapu obrazaca koji se javljaju u živim sistemima
12:33
We can map the patterns that occur in living systems,
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12:35
and figure out how to overcome the diseases that plague us.
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i otkriti kako da prevaziđemo bolesti koje nas muče.
12:41
You know, my wife and I have two young kids,
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Znate, moja žena i ja imamo dvoje dece
12:43
and one of my hopes as a bioengineer is to make life better for them
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i jedna od mojih nada kao bioinženjera je da učinim život boljim za njih
12:46
than it currently is for us.
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od onoga kakav je trenutno za nas.
12:48
And my hope is, if we can turn biology and medicine
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Moja nada je, ako možemo da preokrenemo biologiju i medicinu
12:52
from these high-risk endeavors that are governed by chance and luck,
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od tih visoko rizičnih poduhvata kojima rukovode slučaj i sreća
12:56
and make them things that we win by skill and hard work,
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i učinimo ih stvarima u kojima pobeđujemo veštinama i napornim radom,
13:00
then that would be a great advance.
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onda bi to bio veliki napredak.
13:02
Thank you very much.
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Hvala vam mnogo.
13:03
(Applause)
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(Aplauz)
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