2015-04-23.log

--- Log opened Thu Apr 23 00:00:30 2015
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kanzurehmm they are up to 28 TB http://genofond.org/viewtopic.php?f=8&t=761106:09
kanzure"The LG scientific articles are now being publicly released to the torrent network. As of 24 march 2015 the repository contains 38 million articles occupying 28 TB. The content is the original downloaded PDF-files without modifications. The format of the directory structure is as follows: <DOI prefix>/<DOI suffix>.pdf The files are split by thousands, each thousand is archived as a ZIP-file without compression. Each torrent contains 100 ...06:11
kanzure... archives, i.e. 100000 articles. The archives are numbered sequentially, in accordance with the article `ID` from the `scimag` database, the dumps of which can be downloaded by following this name pattern (replace the date wildcards with appropriate ones): ftp://ftp.libgen.org/dbdumps/scimag_dbbackup-YYYY-MM-DD.rar The torrents can be downloaded from here ftp://ftp.libgen.in/scimag_torrent/ Please, do not only leech, stay to keep on ...06:11
kanzure... seeding! Every seed is vital!"06:11
kanzure"Начинаем раздачу статей Library Genesis публичными торрентами. Коллекция на 24 марта 2015 насчитывает 38 миллионов статей общим объёмом 28 ТБ. Представлены все основные издательства. В раздаче оригинальные PDF, скачанные с издателей. Формат структуры ...06:11
kanzure... каталогов: Коллекция разбита на блоки по 1000 статей, каждый сохранён в ZIP архиве без сжатия. В каждом торренте раздаётся 100 ZIP архивов, т.е. 100000 статей. Архивы пронумерованы по порядку, в соответствии с `ID` статей в базе `scimag`, дамп которой можно ...06:11
kanzure... взять, следуя следующему шаблону ссылки (замените маски даты на подходящие): Торренты доступны здесь: ftp://ftp.libgen.in/scimag_torrent/ Скачав, с раздачи не уходим! Важен каждый сид!"06:11
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kanzure.wik semaphorin08:37
yoleaux"Semaphorins are a class of secreted and membrane proteins that act as axonal growth cone guidance molecules. They primarily act as short-range inhibitory signals and signal through multimeric receptor complexes. They are usually cues to deflect axons from inappropriate regions, especially important in neural system development." — http://en.wikipedia.org/wiki/Semaphorin08:37
kanzurecool "Every semaphorin is characterised by the expression of a specific region of about 500 amino acids called the sema domain."08:38
kanzure"Sema3a repels axons from the dorsal root ganglia, facial nerves, vagal nerves, olfactory-sensory, cortical nerves, hippocampal nerves and cerebellar nerves."08:38
kanzure"Semaphorins, which are short range inhibitory proteins that act as axonal growth cone guidance molecules, are synthesized by neurons during axon pathfinding. Repulsive guidance cue semaphorin-3A (Sema3A) is a gene of the semaphorin family and is expressed by motorneurons to control motor axonal pathfinding. Axon pathfinding is the process by which neurons follow very precise paths, sends out axons, and react to specific chemical ...08:40
kanzure... environments to reach the correct endpoint. During nervous system development, guidance cues, such as Semaphorin-3A induce the collapse and paralysis of neuronal growth cones. This repulsive cue for developing axons are signaled through receptor complexes containing Neuropilin-1 (NRP1), which is a protein receptor in active neurons.[4][5]The first of the CRMP proteins, CRMP2, was identified as an intracellular messenger required for ...08:40
kanzure... the growth cone-collapse induced by semaphorin 3A."08:40
kanzurealso there is content here http://en.wikipedia.org/wiki/Growth_cone08:40
kanzureand http://en.wikipedia.org/wiki/Axon_guidance08:41
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kanzurehttp://www.nature.com/news/chinese-scientists-genetically-modify-human-embryos-1.1737809:00
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ForrestFlanagansomething is fishy about that paper09:20
QuadIgniForrestFlanagan: what?09:21
ForrestFlanaganhttp://link.springer.com/article/10.1007%2Fs13238-015-0153-509:24
QuadIgnino, what is fishy about it?09:25
ForrestFlanaganIt was shopped around a lot and rejected, the author is making claims about crispr being shoddy09:27
ForrestFlanaganthey only did exome sequencing to check for mutations, but the author claims (to the press) that if they sequenced the full genome there would be way more damage09:28
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ForrestFlanaganalso, they're using double-fertilized eggs, which probably account for the results being so crappy09:28
ForrestFlanaganat the very least, they should have sequenced some unmodified double-fertilized eggs from the same batch to confirm crispr even has a role09:29
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ForrestFlanaganI thing Huang might have some kind of bias to express for some reason. I'm looking in on the authors to see if they have any strong anti-germline modification stuff, or if they have anything to gain by getting poor CRISPR results published as opposed to TALEN09:33
ForrestFlanaganreally I'd like to see this exact study without the mosaic double fertilization stuff09:42
ForrestFlanaganlike just use an animal09:42
ForrestFlanaganI mean, the methodology is using one homologous region to repair another09:43
ForrestFlanaganbut it's in an egg that's been fertilized dissimilarly twice09:43
ForrestFlanaganso I bet it's crossing over like crazy09:44
ForrestFlanaganyeah there's going to be mutations09:44
ForrestFlanaganI bet half of the homologous repair templates didn't even come from the same chromosome09:45
thundaraWouldn't they want to use the nickase version of cas9, too?09:47
thundarahttp://www.cell.com/abstract/S0092-8674%2813%2901015-509:47
thundaraOr is that not common in the wild yet?09:48
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ForrestFlanaganIt was rejected by a handful of journals, I question if it was actually on pure ethical basis or if it's scientific10:06
ForrestFlanaganlike nobody wants to be first to print the landmark paper that turns out to be irreproducible10:07
kanzureone of the synthetic chemistry journals has all editors reproduce every experiment before allowing a paper to be published in the journal10:09
ForrestFlanaganI take that back, I forgot about the Journal of Irreproducible Results10:09
ForrestFlanagankanzure that10:09
ForrestFlanaganwow kanzure, that's my kind of peer review10:10
kanzurehttp://orgsyn.org/10:11
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rk[1]anyone here done any graphene synthesis?12:30
* not_unoriginal lights a candle12:31
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not_unoriginalyou can get buckyballs from candle soot12:31
rk[1]me and a friend are interested in applying the water/heptane interface-layer method. however it requires a high-power ultrasonic transducer12:31
erasmusI thought bucky balls were no illegal12:31
not_unoriginalweird, I met a dude from another channel who mentioned his father doing that12:31
erasmus*now12:31
rk[1]not_unoriginal: interesting.12:31
not_unoriginaltht.co is down12:32
erasmusut-oh12:32
rk[1]with the water/heptane interface layer method, it is likely possibly to create a machine that creates rolls of graphene12:32
not_unoriginalrolls?12:32
not_unoriginallike graphene tubes?12:32
rk[1]which then will allow folding and cutting of graphene to get vertically aligned graphene sheets12:32
rk[1]not_unoriginal: err.. not tubes. what i mean is think of like a recipet machine with a cash register12:33
rk[1]and how it just "rolls" out sheets of receipt paper12:33
rk[1]with the water/heptane interface layer, you can put two glass slides in the solution and graphene should essentially "grow" up between them12:34
rk[1]such that it might be possible to have a machine that "prints" graphene sheets12:34
rk[1]right now the ultrasonic transducer is the bottle neck as it is expensive and we aren't quite ready to throw 1.5k at one.. just yet. currently seeking alternatives..12:35
not_unoriginalI would assume that this is what many researchers are working towards12:37
not_unoriginalif that were currently feasable, we would have a space elevator12:37
kanzurehow high-power do you need12:43
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fennit's really disappointing that nature "declined to comment" on why they rejected the germline paper12:57
fennif they are censoring science on moral grounds we deserve to know about it12:57
fennif it's a shitty paper with bad methods we also deserve to know about it12:58
fenni figured this sort of thing would happen in korea first, not china12:59
fenni guess they have less genetic engineering going on in korea12:59
fennanyway, if true it just shows that we need better cloning protocols before germline modification is practical13:00
fennharvesting eggs is a pain13:01
fennbetter not to have to do it 100 times13:02
fenn"Not only is there nothing wrong with this work on non-viable embryos, but there was no good reason to compromise the technique and the results by not working on viable ones in the first place. They're not going to turn into people while you're not looking."13:04
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kanzureeleitl says "you need to have ganglia"13:48
kanzuregood advice13:48
kanzure12:57 < fenn> if they are censoring science on moral grounds we deserve to know about it13:48
kanzureer i think that's only if you're payign for nature.com stuff :-)13:49
kanzurealthough, i suppose there are other moral grounds, like "the authors have committed moral crimes against statistics", which i agree should be reported13:50
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jackybgoodpaperbot http://www.mitpressjournals.org/doi/pdf/10.1162/jocn.2008.2015113:55
jackybgoodPaperbot  http://www.mitpressjournals.org/doi/pdf/10.1162/jocn.2008.2015114:02
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kanzure"Telomere Measurement & Longevity A Talk by Titanovo cofounders Dr. Savsunenko Oleksandr and Corey McCarren When: Thursday, April 23rd, 2015, 7:00pm; Doors open at 6:30pm Where: Genspace, The MEx Building"14:21
kanzurehttp://titanovo.com/14:21
streetytheir site is a little thin on the science14:29
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kanzureheh14:42
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rk[1]kanzure: 250W15:26
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rk[1]the piezo style ones seemingly only go up to 100W15:27
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kanzurehmm18:57
kanzure"Partly due to this ambiguity, the Terminologia Anatomica recommends using the term basal nuclei instead of basal ganglia; however, this usage has not been generally adopted."18:58
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loopScience Direct19:03
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kanzure"Speed of expertise acquisition depends upon inherited factors" http://iratde.org/issues/1-2010/tde_issue_1-2010_03_chassy_and_gobet.pdf19:33
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kanzurehehe this abstract http://diyhpl.us/~bryan/papers2/bio/snail/A%20synthetic%20approach%20to%20the%20study%20of%20learning%20and%20memory%20in%20chambered%20nautilus%20(Cephalopoda%20nautiloidea).pdf19:39
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kanzureheh! "Do birds understand what's going on in their nests? The experimental test of insight in small passerines" http://www.tandfonline.com/doi/abs/10.1080/03949370.2012.711369#20:09
kanzure"We also describe other irrational behaviours like incubating dead chicks or bringing food to a nest by a parent that previously had removed all dead chicks from the nest and left it empty. Although our sample is rather limited, the study presents clear evidence that small passerines cannot use deduction even in very obvious situations."20:09
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kanzureoh "Lymnaea stagnalis provides an excellent model system for studying memory because these snails have a well-described set of neurons, a single one of which controls expression of long-term memory of operantly conditioned respiratory behavior."20:43
kanzure.title http://jeb.biologists.org/content/217/16/2920.short20:44
yoleauxEnhanced memory persistence is blocked by a DNA methyltransferase inhibitor in the snail Lymnaea stagnalis20:44
kanzure"Lymnaea stagnalis provides an excellent model system for studying memory because these snails have a well-described set of neurons, a single one of which controls expression of long-term memory of operantly conditioned respiratory behavior. We have shown that several different manipulations, including pre-training exposure to serotonin (5-HT) or methamphetamine, submersion of snails after training to prevent memory interference, and ...20:44
kanzure... exposure to effluent from predatory crayfish (CE), enhance memory persistence. Changes in DNA methylation underlie formation of strong memories in mammals and 5-HT-enhanced long-term facilitation in Aplysia. Here we determined the impact of the DNA methyltransferase inhibitor, 5-aza-2′-deoxycytidine (5-AZA; 87 μmol l−1), on enhanced memory persistence by all four manipulations. We found that 5-HT (100 μmol l−1) enhanced ...20:44
kanzure... memory persistence, which was blocked by 5-AZA pretreatment. Snails pre-exposed to 3.3 μmol l−1 Meth 4 h prior to training demonstrated memory 72 h later, which was not present in controls. This memory-enhancing effect was blocked by pre-treatment with 87 μmol l−1 5-AZA. Similarly, submersion to prevent interference learning as well as training in CE produced memory that was not present in controls, and these effects were ...20:45
kanzure... blocked by pre-treatment with 87 μmol l−1 5-AZA. In contrast, 5-AZA injection did not alter expression of normal (non-enhanced) memory, suggesting that these four stimuli enhance memory persistence by increasing DNA methyltransferase activity, which, in turn, increases expression of memory-enhancing genes and/or inhibits memory suppressor genes. These studies lay important groundwork for delineating gene methylation changes that ...20:45
kanzure... are common to persistent memory produced by different stimuli."20:45
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kanzurehmm wasn't i reading something recently about other investigations into methyltransferase for memory stuff? i don't see this in the logs.21:02
genehacker@ForrestFlanagan the sensor that you have has a pretty long convergence time, you'd probably have a hard time using it as scanning sensor21:04
kanzureit was similar to this paper, but this is not the right paper: "DNA methyltransferase activity is required for memory-related neural plasticity in the lateral amygdala" http://www.sciencedirect.com/science/article/pii/S107474271300236021:04
kanzure13:44 < kanzure> hydrolases and methyltransferases look weird21:05
kanzureah, this looks closer: "The role of DNA methylation in the mechanisms of memory reconsolidation and development of amnesia" http://www.sciencedirect.com/science/article/pii/S016643281400754221:07
kanzureit was something about reconsolidation but not amnesia21:08
kanzurehuh how did i lose a thing21:11
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genehackerhowever, if you have several of them, maybe you could get decent scans?21:19
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--- Log closed Fri Apr 24 00:00:31 2015

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