in mechanical engineering actually, it will be a bit dependent on the industrial projects I'll be working on, but it will have to do with computer tomography measurements
@Secret well I'd guess all the simulations of proteins or predator-prey-networks should qualify ... and in bioinformatics, there's actually cool "big data" approaches
e.g. analysing the genome of a lot of mutated virus molecules or enzymes and predicting functional relationships between different parts of them
there's fun stuff to be found at the intersection physics/math/IT/biology
for data, I usually interested in the presentation of high dimensional data. Where to take a section and how to overlay them in order to present the most relevant information
It's a pity that we are not infinite dimensional creatures otherwise datat analysis might be somewhat easier to spot those kinks and other things that suggests a phase transition in the dynamics or something else
@MaxPayne That formula gives you the length of the path. Not everyone would agree that it's the distance travelled.
For example, suppose the distance between London and Manchester is 150 miles.
If I drive from London to Manchester, most people would be happy with the statement that the distance I have travelled is 150 miles.
But perhaps the road was very windy, or perhaps I forgot my keys halfway and had to go back to get them. Then the length of the path I took would be more than 150 miles. This path length is what would be quantified by your integral above.
The notion of travelling distance (not the actual distance between two places) makes more sense with the integral $\int dt |v(t)|$ as when summing up all the contributions in a path that is to be interpreted as the total distance travelled for that path, the sign should not matter for all t
Putting another label is not going to solve the problem. AI might fare better than us in this compelx world because they can always analyse a volumne of interrrelated data at the same time, which we are bad at
Whenever on Physics.SE or Electronics. SE I read that a phasor is a rotating vector, my heart sinks at the thought of how many students will get this wrong concept :-(
Newscientist: QUOTE The health of people cames before the profit of business ENDQUOTE
We really need a more head on and effective way to combat the resilence of a well established industry that is known to cause harm (e.g. tobacco industry) and its many tactics to stop a certain law from being passed (that affect their profits)
If there exists something in economic theory that we can use in order to roughly maintain the profits while slowly phasing out an industry by gradually converting it to another, (think the reverse of a pilot trial), then maybe it can elect less fierce response fro…
and perhaps, a way to stop it from preventing laws to get pass is to attack wheere they hurt most. Industry as an irreducible thing dependes on profits to function, so if this level of profit can be maintained while it shifts gradually into a different industry, than it might work
(Might google about this later, I suspect somep poeple have already considered this model)
I've been meeting with one not-very-small problem in arriving at
(3.3) in Shaposhnikov's "Structure of the high temperature gauge ground state and electroweak production of the barygon asymmetry" (1988).
My question is how we can get this contribution based on what is said in section 3 of this ...
Mods and other community comrades: This post is using a link from Sci-Hub, which though I use myself, apparently has legal issues and has been banned at some places; so is it right to use any paper opened through Sci-Hub in SE?
user116211
I'll skip the review but would like to know the attitude of the community on this.
user116211
Meanwhile, why is there so many posts in the review queue? I think it is due to I didn't review for two days, hmm.
[Last night dream] Discussing with Johnrennie about dark reactions, I then brought up a paper which talked about a new model of dark matter which has a ground state lower than the ground states of most matter, and one possibility of detecting it is when some excited state relaxes into this undiscovered low ground state. The matter is predicted to be 10$^28$ kg and is said to be massive enough that if there's a calcium atom located within it, it will quickly convert into another element of this stuff.
Caption: (Closest reconstruction of) The abstract figure seen in that paper in the dream
The fancy T thing is a label for this stuff and the proposed transition is indicated by the arrow. Ground state of most systems are of the order around the bottom light blue line circled in red
now the following ramblings earlier should be more readable:
[Last night dream inspired question] Ground state of a black hole...?, quantum transition pathway that allow absorption of photons but not emission (thus relaxation is not radiative)...? dark matter with a ground state much lower than all known ground state...?
Some reality check: 1. The mass of this thing is $10^{28}$ kg, which is $5.609588357189999\times 10^{64}$ eV. While just slightly under one solar mass, any particle of this mass cannot be produced by any foreseeable collider in the future 2. It is unsure what happens when two quantum states with different ground states interact, given that we cannot directly measure the absolute ground state of any systems 3. The diagram does suggest something of this size and this stable will definitely be dark matter candidates
A brief google search do came up with a couple of papers talking about two interacting black holes in some excited states, the connection of the ground state of a black hole with its entropy. Given my current GR level, however most are incomprehensible atm
@MAFIA36790 linking somewhere is never a problem, although it would improve the post to replace a link to a paper on SciHub with a link to the official journal page or the arXiv abstract page
That's a way to look at it. If I have a rectangular container filled with a liquid, and then I have a piston attached on the bottom
When I contract the piston The level of the liquid will decrease (as it will fill the piston chamber)
But, if I look at the effect in slow-motion the water level wouldn't go down homogeneously, first a valley would form on the surface around where the piston is and then it'd even out
My question is: How does the time required for the surface to even out again relate to the density of the fluid? I.e. If I attempted this with water and Hg, would the latter go flat faster because of it's density?
@trilolil No. "microscopic" objects are just small objects (how small exactly depends on the context, but usually smaller than you can see with the naked eye). "Infinitesimal" objects are mathematical fictions which are thought of as "infinitely small" things.
Are "computational biology" and "bioinformatics" simply different terms for the same thing or is there a real difference?
I've been meeting with one not-very-small problem in arriving at
(3.3) in Shaposhnikov's "Structure of the high temperature gauge ground state and electroweak production of the barygon asymmetry" (1988).
My question is how we can get this contribution based on what is said in section 3 of this ...
