nonbel

105 ms·

961.
by nonbel 9y ago
>"Honestly, I'd much rather have your actual code and data that you used to get your results than read through the research paper if I had to choose (assuming the paper is not pure theory) - but instead there is a disproportion
962.
Can a biologist fix a smartphone?–Just hack it(ncbi.nlm.nih.gov)
1 points by nonbel 9y ago|0 comments
963.
by nonbel 9y ago
This is the only relevant part: > "In a quantum-mechanical picture, light consists of photons, or packages of optical energy. The photons of the light reflected from a metal (or a dielectric mirror) are identical to the incident one
964.
by nonbel 9y ago
The most interesting argument I've heard from the dozenal society is that the decimal system is inherently selfish. There is a reason that cases of beer come in packs of 6, 12, 18, 24, 30 instead of 5, 10, 15, etc. It is much more like
965.
by nonbel 9y ago
>"I've sent a paper to Nature, which got held up because our reviewer was about to send the same stuff to Cell." I suspect this reflects a much deeper anti-scientific attitude that I have seen in academia. If it was the ex
966.
by nonbel 9y ago
I'd look at it like this. So now we have: set.seed(12345) treatment = c(rep(0, 4), rep(1, 4)) gender1 = rep(c(1, 0), 4) gender2 = rep(c(0, 1), 4) gender3 = rep(c(.5, -.5), 4) result = rnorm(8) summary(lm(resul
967.
by nonbel 9y ago
>"Let's ignore the interaction term for the sake of simplicity. It doesn't change anything in what follows." It changes the estimates if you don't assume the interaction coefficient = 0, how can you just ignore i
968.
by nonbel 9y ago
So what is the intuitive explanation here? You can choose to code it 1/0 0/1 or -.5/.5, or -643/643 and the result you care about is different.
969.
by nonbel 9y ago
Interesting, I'm not sure what to expect. Can you code up the permutation test and share the results? Also, in what cases would you say a permutation test would be unnecessary, only one independent variable? I tried to choose a very si
970.
by nonbel 9y ago
I don't even think simple linear models are actually explainable. They just seem to be. Eg, try this in R: set.seed(12345) treatment = c(rep(1, 4), rep(0, 4)) gender1 = rep(c(1, 0), 4) gender2 = rep(c(0, 1), 4) result
971.
by nonbel 9y ago
Interesting that no one thinks to blame the researchers for this predicament. The truth is that the way carcinogenesis is tested nearly everything will lead to cancer in some dose (the same way that drinking water will kill you if you drink
972.
by nonbel 9y ago
This type of research is just BS to begin with. The way they collect and analyze the data is only capable of generating conflicting evidence while never leading to cumulative knowledge. The method is called NHST (null hypothesis significanc
973.
by nonbel 9y ago
Ok, I see I read the figure 3b wrong (only glanced at it before). I extracted the data from their extended figure 5a: dV sigma R_major -4.16 16.41 -3.98 10.55 3.41 -1.97 15.03 7.25 -1.85 -2.24 5.12 -0.74
974.
by nonbel 9y ago
The paper considers the class of MOND theories that made a precise prediction of deltaV = 20 km/s for this galaxy. I guess I am referring to only those.
975.
by nonbel 9y ago
I could be a MOND proponent only in that "dark matter" looks exactly like epicycles to me. I make no claims to understand the details of MOND, so please do not blame them for any of my errors. That said, what do you mean by "
976.
by nonbel 9y ago
I drew the blue vertical line at 20 km/s: https://image.ibb.co/m38AH7/galaxy.png Are you claiming this is cutting off 1e-5 of the area of that Gaussian curve they fit? It looks very close to 1/20 to me. I don
977.
by nonbel 9y ago
See my post here: https://news.ycombinator.com/item?id=16702599 From what I understand of MOND, the less attraction to visible mass (as you would expect from a "ultra diffuse" galaxy like this), the smaller the ef
978.
by nonbel 9y ago
>"This galaxy discovery, though, appears to be strong evidence against MOND or other modified-gravity theories since the dark matter is missing in this case." What makes you say this?
979.
by nonbel 9y ago
Not sure where the downvotes are coming from. The reasoning that this evidence is moderately unlikely given that MOND is true can be found in the parent post. The authors worked it out to ~1/10 to 1/20. They don't put a numbe
980.
by nonbel 9y ago
I see the paper says: > "[MOND predicts] the expected velocity dispersion of NGC1052–DF2 is ... 20 km s−1, a factor of two higher than the 90% upper limit on the observed dispersion." http://imgsrc.hubblesite.org&#x
981.
by nonbel 9y ago
> "Based on these data the team discovered that NGC 1052-DF2 larger than the Milky Way, but contains about 250 times fewer stars, leading it to be classified as an ultra diffuse galaxy." Interesting, the mass discrepancy (ie,
982.
by nonbel 9y ago
I think astrology only posits that human behavior is somehow correlated with the positions of the various heavenly bodies. This could be via an intermediate correlation with the weather, etc.
983.
by nonbel 9y ago
This exists and is called huntercoin. The hard part for the human mining is coming up with a game that bots are worse at than humans, so it is still under development: http://huntercoin.org/ Soon (next month or so) the same
984.
by nonbel 9y ago
I agree, which I why I wrote: "these laws are clearly unsuitable"
985.
by nonbel 9y ago
> "It's perfectly acceptable in social situations to get a number of friend from a friend to send them a text message or a phone call." Sure, and I have done this many times. But if we append "to invite them to their
986.
by nonbel 9y ago
> Imagine, for instance, that a person wishes to send an invitation for a social gathering to a person she recently met for the first time. If she lacks prior express consent to send the invitation, and if she obtains the acquaintance&#x
987.
by nonbel 9y ago
The parent is wrong in that they fail to distinguish between terminal/differentiated cells and tissue stem cells. Also they imply there is a one-to-one correspondence between the relevant cell divisions and number of total cells at any
988.
by nonbel 9y ago
Yes. The current thought is that cancer arises by tissue stem cells accumulating mutations at a low rate until it goes out of control. Every division there is some chance of error. If you have more divisions, there is a higher chance of can
989.
by nonbel 9y ago
You are saying to adjust p0 so I get that the frequency of bad pixels = 1e-6? That makes sense but it would probably now depend on what size screens are being considered... not sure if I'll go back to it.
990.
by nonbel 9y ago
>"Right now Facebook is essentially saying your data is worth free photos and being advertised and propogandized and people seem to accept that. How does this not become the standard of exchange in your system for any popular networ

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