but then I remembered I'm not American! Seriously, I'm over the whole horror of your brutal invasion of Iraq, trampling of civil rights, endorsements of torture.
I'm now just watching news about american politics like its an episode of 24. Try it sometime, its actually pretty enjoyable. You had the regular spies, corrupt politician etc. But now you have mercenaries with cool names like Blackwater, unnamed gov. agencies tracking every piece of digital data, hidden detention centers...
I'm waiting for the nex big twist. Maybe, it comes out that the drug war was a move by the CIA to push up drug prices, so the gov could make more money to fund their secret mercenary wars by smuggling in drugs, while at the same time filling up the prisons with second class citizens unable to vote, but conscriptable!
hmmmm, I can't even tink up insane conspircy theories that aren't plausable anymore... cool!
An anonymous reader writes "As a very happy iPod user (still working after 7 years), I always planned on replacing it with another iPod. However, iPods are still produced by Apple, an American company, and I can't quite bear to buy American while the Blackwater are shooting civilians with the US Government as their biggest backer. Maybe this is silly, as whatever I buy is likely to be made (at least in part) in the USA... but still, what are my options for something as well built as the iPod?"
cute, but check out-
http://scholar.google.com/url?sa=U&q=http://www.bi oon.com/biology/UploadFiles/200502/200502160347225 62.pdf
"Functional imaging with cellular resolution reveals precise micro-architecture in visual cortex"
also, i forsee the development of light-gated ionchannels, such as the one i mentioned before, that can be opens at various wavelengths, much like gfp has been mutated from green to the whole blue-red spectrum.
geneticaly specified reading of neurons has furthers to go, but it will happen, and soon i think. in the end, why go with hacking into the brain to insert electrodes and chips etc, when two-photon microscopy can see though tissue?
i am not at MIT, but I can tell you this aint about to happen any time soon.
i am working on optical neuron-computer interfaces, and this is probably the most efficient and direct route for reading neurons. I know of researchers who can also stimulate neurons to fires via light, so in principle, we could build a complete neuroptical computers tomorrow... if neurons were not complete bastards to work with.
you see, they just dont like to stay place. where i research, they often build tiny fences to keep them in place, but even then, they go shooting theyre axons anywhere they feel, with no concern for the feelings of the researcher.
we also grow neurons on microchip surfaces, which allows for high speed and high resolution stimulation and reading of single neuron activity, but in two dimensions, which is excellent for retina etc.
but the neuron-chip or old fashioned neuron-electrode are hard to place, and optical reading of neurons still has bugs to sort out (id guess from 4-10 years more basic research). whenever you see these cool brainscan pics with MRI etc, remember theyre resolution is on the order of millimeters, and thats a lot of complexity lost.
http://www.biochem.mpg.de/mnphys/ has a nice review of the problems involved, if you like hardcore solidstate chemistry, silicon physics, and neurobiology
Ok, this is regarded by many as THE puzzle to solve... you have been warned...
Three gods A , B , and C are called, in some order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is a completely random matter. Your task is to determine the identities of A , B , and C by asking three yes-no questions; each question must be put to exactly one god. The gods understand English, but will answer in their own language, in which the words for yes and no are "da" and "ja", in some order. You do not know which word means which.
-inverted microscope and good objectives, maybe phase contrast or differential interference -single photon deep cooled fluorescence camera -femtosecond laser, diode array etc for confocal microscopy -fast digital CRO and waveform generator -patch clamp amplifier -good speakers, but no subwoofer, as it can cause blurring if you dont use an high quality air cusioned bench
im developing optical, live neuron based bio computers, so i also need a standard molecular bio bench, cell culture bench, electronics bench aswell, but they are more standard. hope this helps
Ive already checked the journals on this one, and the research involving the regrowth of toes etc has not been published, so i can't say much about that. However, several papers have been published on heart muscle cell regeneration, and it looks nice. Regeneration of bodyparts requires plasticity in cell type differentiation. Either primary cell types undergo a revertion to a more totipotent form or reserves of stem-like cells multiply and differentiate to form the new bodypart in question. Generaly, this is Not A Good Thing, ie cancer, and so the body has a whole slew of checks and balances to prevent this from occuring. Im guessing that in more primitive organisms, short lifespan and low cell turnover (they're cold blooded) means that the adaptive advanges of regenerating missing bodyparts outweighs the higher risks of developing cancer.
Slashdot Mirror
I, for one, welcome our Internet controlling Seppo Overlords...
but then I remembered I'm not American! Seriously, I'm over the whole horror of your brutal invasion of Iraq, trampling of civil rights, endorsements of torture. I'm now just watching news about american politics like its an episode of 24. Try it sometime, its actually pretty enjoyable. You had the regular spies, corrupt politician etc. But now you have mercenaries with cool names like Blackwater, unnamed gov. agencies tracking every piece of digital data, hidden detention centers... I'm waiting for the nex big twist. Maybe, it comes out that the drug war was a move by the CIA to push up drug prices, so the gov could make more money to fund their secret mercenary wars by smuggling in drugs, while at the same time filling up the prisons with second class citizens unable to vote, but conscriptable! hmmmm, I can't even tink up insane conspircy theories that aren't plausable anymore... cool!
Yes Sir! No generalizing about the Good Ol' USA then!
dude, grow a brain...
iraq: 73,922-1,000,000 dead...
dead monks 9-???
ok, so as many people died violently in Burma as say, everyday in Iraq before lunch?
OHHHHhhhh, wait... I forget, American only have a five minute attention span, and a phobia of Communism...
An anonymous reader writes
"As a very happy iPod user (still working after 7 years), I always planned on replacing it with another iPod. However, iPods are still produced by Apple, an American company, and I can't quite bear to buy American while the Blackwater are shooting civilians with the US Government as their biggest backer. Maybe this is silly, as whatever I buy is likely to be made (at least in part) in the USA... but still, what are my options for something as well built as the iPod?"
there, fixed that for ya!
60d d4mn 17, 1 h473 6r4mm4r n4z15. 1f y0u h4v3 50m37h1n6 u53fu| 70 54y, 7h3n 54y 17, d0n7 n17p1ck 57uff y0u 0bv10u5|y und3r574nd
STFU. better?
cute, but check out- http://scholar.google.com/url?sa=U&q=http://www.bi oon.com/biology/UploadFiles/200502/200502160347225 62.pdf
"Functional imaging with cellular resolution reveals precise micro-architecture in visual cortex"
also, i forsee the development of light-gated ionchannels, such as the one i mentioned before, that can be opens at various wavelengths, much like gfp has been mutated from green to the whole blue-red spectrum.
geneticaly specified reading of neurons has furthers to go, but it will happen, and soon i think. in the end, why go with hacking into the brain to insert electrodes and chips etc, when two-photon microscopy can see though tissue?
i am not at MIT, but I can tell you this aint about to happen any time soon.
i am working on optical neuron-computer interfaces, and this is probably the most efficient and direct route for reading neurons. I know of researchers who can also stimulate neurons to fires via light, so in principle, we could build a complete neuroptical computers tomorrow... if neurons were not complete bastards to work with.
you see, they just dont like to stay place. where i research, they often build tiny fences to keep them in place, but even then, they go shooting theyre axons anywhere they feel, with no concern for the feelings of the researcher.
we also grow neurons on microchip surfaces, which allows for high speed and high resolution stimulation and reading of single neuron activity, but in two dimensions, which is excellent for retina etc.
but the neuron-chip or old fashioned neuron-electrode are hard to place, and optical reading of neurons still has bugs to sort out (id guess from 4-10 years more basic research). whenever you see these cool brainscan pics with MRI etc, remember theyre resolution is on the order of millimeters, and thats a lot of complexity lost.
http://www.biochem.mpg.de/mnphys/ has a nice review of the problems involved, if you like hardcore solidstate chemistry, silicon physics, and neurobiology
uhhuh, because glasses lenses now moving at 2500 feet per second aint gunna hurt at all.....
Ok, this is regarded by many as THE puzzle to solve... you have been warned...
Three gods A , B , and C are called, in some order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is a completely random matter. Your task is to determine the identities of A , B , and C by asking three yes-no questions; each question must be put to exactly one god. The gods understand English, but will answer in their own language, in which the words for yes and no are "da" and "ja", in some order. You do not know which word means which.
good luck!
I dont think you can go wrong with the following:
-inverted microscope and good objectives, maybe phase contrast or differential interference
-single photon deep cooled fluorescence camera
-femtosecond laser, diode array etc for confocal microscopy
-fast digital CRO and waveform generator
-patch clamp amplifier
-good speakers, but no subwoofer, as it can cause blurring if you dont use an high quality air cusioned bench
im developing optical, live neuron based bio computers, so i also need a standard molecular bio bench, cell culture bench, electronics bench aswell, but they are more standard. hope this helps
Ive already checked the journals on this one, and the research involving the regrowth of toes etc has not been published, so i can't say much about that. However, several papers have been published on heart muscle cell regeneration, and it looks nice. Regeneration of bodyparts requires plasticity in cell type differentiation. Either primary cell types undergo a revertion to a more totipotent form or reserves of stem-like cells multiply and differentiate to form the new bodypart in question. Generaly, this is Not A Good Thing, ie cancer, and so the body has a whole slew of checks and balances to prevent this from occuring. Im guessing that in more primitive organisms, short lifespan and low cell turnover (they're cold blooded) means that the adaptive advanges of regenerating missing bodyparts outweighs the higher risks of developing cancer.