| --- Log opened Wed May 23 00:00:18 2012 | ||
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| fenn | the accuracy of positioning systems is very much the same as in "design of accurate instruments" from 1906, with the addition of interferometers | 01:21 |
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| kanzure | nmz787: are you around | 01:21 |
| kanzure | <-- is actually sleeping. don't mind me. | 01:22 |
| fenn | anyway the first page of the article is about how resolution and accuracy are different things, and then goes on to talk about accuracy, whereas what we are concerned with is more repeatability and resolution | 01:24 |
| Utopiah | kanzure: funny GoogleGroup on brain-training, I asked the very same kind of question during the last local LessWrong meetup, basically are all those brain exercises worth the investment | 01:38 |
| fenn | well, are they? | 01:51 |
| fenn | people do all kinds of pointless things | 01:52 |
| fenn | also how does it compare to the same amount of {time,effort} physical exercise | 01:52 |
| fenn | huh. http://quantified-mind.com | 01:53 |
| fenn | what the hell. i assumed they abandoned the project because there hasn't been any activity on the cognistats group | 01:55 |
| Utopiah | looks clean but again, no idea how those exercises generalize or not | 01:56 |
| fenn | neither does anybody, but at least it's a measure of *something* | 01:59 |
| fenn | if piracetam improves your performance on cognitive tests XYZ you can t least say it does something instead of nothing | 01:59 |
| fenn | s/t/at/ | 01:59 |
| fenn | also, i dont see how to download my data, which ought to be the MOST important thing on here. lumosity already does most of these tests | 02:02 |
| fenn | it's kind of annoying they have these pre-set experiments like "coffee experiment" or "butter experiment" | 02:03 |
| fenn | ah you can create your own experiment | 02:09 |
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| delinquentme | http://www.wired.com/dangerroom/2010/08/armys-vaccine-plan-inject-troops-with-gas-propelled-electro-charged-dna/?utm_source=Contextly&utm_medium=RelatedLinks&utm_campaign=Previous | 05:40 |
| delinquentme | gene gun being used for troop inoculations | 05:40 |
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| kanzure | 63 shortcuts/min. a bit better? | 07:03 |
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| kanzure | beep boop. | 11:34 |
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| delinquentme | kanzure, any insight on this: http://pastie.org/3956913 | 11:40 |
| delinquentme | right now my best kludge is to gsub on every element and remove the double quote | 11:40 |
| kanzure | one minute.. on phone | 11:56 |
| kanzure | delinquentme: do you mean.. uh, what? do you mean you want to edit the source code | 12:02 |
| delinquentme | im trying to build up an array of hashes like the bottom one .. and having some difficults | 12:02 |
| delinquentme | im not 100% sure on the issue myself yet .. I was sure that was the issue 10 mins ago :P | 12:03 |
| kanzure | are you saying that "i have source code, i don't want to manually edit it, and it needs to look like the second one" | 12:05 |
| Steel2 | kanzure, you see the article on darpa today? | 12:14 |
| Steel2 | http://www.wired.com/dangerroom/2012/05/living-foundries/ | 12:15 |
| kanzure | no, i haven't read it, but it's probably about the synthetic biology grant they were looking to do a while back | 12:16 |
| delinquentme | Steel2, yeah i saw that too .. i thought the one I read was dated 2011 though | 12:17 |
| delinquentme | basically kanzure I need to build up some data that is *kinda* like JSON but not quite >> http://pastie.org/3956913 | 12:18 |
| delinquentme | I've got ruby code building up hashes .. but in the process of building up the hashes the nodes[x] gets enclosed in " " | 12:19 |
| Steel2 | found a generic grant for eeg/neuroscience type research | 12:19 |
| kanzure | eeg is lame. prove to me i'm wrong. | 12:20 |
| kanzure | delinquentme: yeah looks like split, gsub, etc. would work best here | 12:21 |
| Steel2 | lame is subjective :P | 12:21 |
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| nmz787 | kanzure: https://ipo.llnl.gov/?q=technologies-microwave_heating_of_microfluidics | 15:18 |
| kanzure | "The method heats samples in a focused area within a microfluidic channel on miniaturized chips. The microwave heating device is composed of a waveguide or microstrip transmission line embedded in a microfluidic channel." | 15:19 |
| kanzure | i was hoping for lasers. | 15:19 |
| nmz787 | http://cuawebserver.mit.edu/Pages/Research/Report/Page.aspx?ReportId=8741 | 15:20 |
| nmz787 | which is really http://iopscience.iop.org/1367-2630/10/6/063005/pdf/njp8_6_063005.pdf | 15:20 |
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| nmz787 | Photovoltaic Retinal Prosthesis With High Pixel Density http://webvision.med.utah.edu/2012/05/photovoltaic-retinal-prosthesis-with-high-pixel-density/ | 16:07 |
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| nmz787 | http://en.wikipedia.org/wiki/Baroreceptor | 16:15 |
| nmz787 | we should just use biologics for some microfluidics... existenz style. | 16:15 |
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| kanzure | diego rey? | 18:11 |
| kanzure | http://geniachip.com/ | 18:13 |
| nmz787 | oO | 18:16 |
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| nmz787 | kanzure: what freqs does transcranial magnetic stimulation work in, whats the hi-res version/system you've mentioned recently? | 19:28 |
| kanzure | you're probably thinking about the ultrasound stimulation stuff i was mentioning | 19:29 |
| kanzure | superkuh: maybe you can give better insight into rTMS than i can | 19:30 |
| superkuh | It is pulsed. The pulse type varies. But often it is underdamped. Anyway, the fwhm lasts only some ~hundred of microsecond so the fft decomposition of the frequency doesn't have too high freq components (100Mhz). | 19:34 |
| superkuh | Unless you mean the repetition rate. That depends on the goal (excitation or inhibition) and the type of tissues. | 19:35 |
| superkuh | Under tens of hertz, usually. | 19:35 |
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| nmz787 | so you're saying the freq of the pulse, not the duty rate, is mainly 100MHz or that's just a harmonic? | 19:43 |
| superkuh | That is just an guess of some of the higher harmonics required. | 19:46 |
| superkuh | It'd be better to speak of the length of the pulse and the repetition rate. | 19:46 |
| nmz787 | so you're saying its literally just a binary on/off pulse, not a train or multiple periods of some wave? | 19:49 |
| superkuh | In most devices. If they are overdamped. If they are underdamped then a single pulse will have a period and decay within a few cycles for most designs. | 19:54 |
| superkuh | It's not a square wave or anything, but if it's underdamped I think calling it binary on/off is fine. | 19:55 |
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| joshcryer | Willow Garage has done some uploads: http://youtu.be/aNo8uBQWghs | 21:32 |
| joshcryer | Part 2: http://youtu.be/3wnab6AjAwc | 21:32 |
| joshcryer | Part 3: http://youtu.be/g9WHxOpAUns | 21:33 |
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| kanzure | " say this because MS refuses to say what patents are involved when approaching companies unless they sign an NDA, and companies that pay just do so out of pure fear, although some actually reuse." | 22:14 |
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| --- Log closed Thu May 24 00:00:19 2012 | ||
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