Particles Link is a tool for artists allowing you to create awesome particles effects. This add-on makes it easy to connect a bunch of particles. PL can also be used as a curve generator and particles tracer.
The add-on offers the ability to create links/curves between particles. It is similar to bTrace / IK-Particles Link add-on. This add-on is mostly useful for Motion Graphics. The Add-on controls/options are explained in the YouTube video below:
Can you animate bevel factor of linked curves? I was wondering if you could perform a draw function based on particle spawn? Would that segment draw be available to trigger additional functions/animation?
An association between high serum calcium/phosphate and cardiovascular events or death is well-established. However, a mechanistic explanation of this correlation is lacking. Here, we examined the role of calciprotein particles (CPPs), nanoscale bodies forming in the human blood upon its supersaturation with calcium and phosphate, in cardiovascular disease. The serum of patients with coronary artery disease or cerebrovascular disease displayed an increased propensity to form CPPs in combination with elevated ionised calcium as well as reduced albumin levels, altogether indicative of reduced Ca2+-binding capacity. Intravenous administration of CPPs to normolipidemic and normotensive Wistar rats provoked intimal hyperplasia and adventitial/perivascular inflammation in both balloon-injured and intact aortas in the absence of other cardiovascular risk factors. Upon the addition to primary human arterial endothelial cells, CPPs induced lysosome-dependent cell death, promoted the release of pro-inflammatory cytokines, stimulated leukocyte adhesion, and triggered endothelial-to-mesenchymal transition. We concluded that CPPs, which are formed in the blood as a result of altered mineral homeostasis, cause endothelial dysfunction and vascular inflammation, thereby contributing to the development of cardiovascular disease.
Hi,
I am trying to import particles from Relion but have been unsuccessful despite reading previous posts regarding this on the discussion forum. I would like to use the results from Relion Refine as input for Non-uniform refine in CS.
Import particles from Relion Refine job (run_data.star) using particle meta path only without link to micrographs or specifying any other parameters. This contained some warnings that psize_A, rlnDetectorPixelSize and rlnMagnification were not read.
I want to now use these particles for NU refinement but it fails if I use the imported refined map from Relion as volume without specifying a mask. Should I first do a homogeneous refinement in Cryosparc before proceeding to NU? Should the mask for NU be created from this map?
Okay, the import without link to mics worked and ab initio is now running. Thanks for all the help Oli - I am a real Cryosparc newbie! But the program looks very cool
Just one last quick question, the options that are given in the job builder are very limited while there are many other parameters in the input tab as the job is running. How would I set these parameters prior to job submission?
I have since managed to run import with link to micrographs and now routinely use this since it allows re-extraction within cryosparc.
I did this by running an import micrographs job with micrographs data path (/path/to/Reliondirectory/MotionCorr/job0XX/__/raw/GridSquare*/Data/FoilHole*.mrc), pixel size, voltage, Cs and exposure specified. Then, I run import particles as before but with link to that import micrographs job.
From everything I've read about quantum mechanics and quantum entanglement phenomena, it's not obvious to me why quantum entanglement is considered to be an active link. That is, it's stated every time that measurement of one particle affects the other.
In my head, there is a less magic explanation: the entangling measurement affects both particles in a way which makes their states identical, though unknown. In this case measuring one particle will reveal information about state of the other, but without a magical instant modification of remote entangled particle.
Entanglement is being presented as an "active link" only because most people - including authors of popular (and sometimes even unpopular, using the very words of Sidney Coleman) books and articles - don't understand quantum mechanics. And they don't understand quantum mechanics because they don't want to believe that it is fundamentally correct: they always want to imagine that there is some classical physics beneath all the observations. But there's none.
You are absolutely correct that there is nothing active about the connection between the entangled particles. Entanglement is just a correlation - one that can potentially affect all combinations of quantities (that are expressed as operators, so the room for the size and types of correlations is greater than in classical physics). In all cases in the real world, however, the correlation between the particles originated from their common origin - some proximity that existed in the past.
This picture is, of course, flawed. The wave function is not a real wave. It is just a collection of numbers whose only ability is to predict the probability of a phenomenon that may happen at some point in the future. The wave function remembers all the correlations - because for every combination of measurements of the entangled particles, quantum mechanics predicts some probability. But all these probabilities exist a moment before the measurement, too. When things are measured, one of the outcomes is just realized. To simplify our reasoning, we may forget about the possibilities that will no longer happen because we already know what happened with the first particle. But this step, in which the original overall probabilities for the second particle were replaced by the conditional probabilities that take the known outcome involving the first particle into account, is just a change of our knowledge - not a remote influence of one particle on the other. No information may ever be answered faster than light using entangled particles. Quantum field theory makes it easy to prove that the information cannot spread over spacelike separations - faster than light. An important fact in this reasoning is that the results of the correlated measurements are still random - we can't force the other particle to be measured "up" or "down" (and transmit information in this way) because we don't have this control even over our own particle (not even in principle: there are no hidden variables, the outcome is genuinely random according to the QM-predicted probabilities).
I wish to complete @Luboš Motl's answer, to which I agree. My point is on why people continue to make this mistake of an active link. This mistake is connected with one of the most interesting properties of quantum mechanics, Bell's theorem. One can argue that any physical theory is an hidden variable theory, the hidden variable being the description of the state of an object as written by the theoretician describing it. For quantum theory, the wavefunction of the object is the hidden variable.
In fact your view is quite close to the 'official' one; entanglement occurs just because both particles are described with one wave-function; the magic is in our classical habit of thinking that separate objects are described with separate "coordinates".
It is not really clear that cases 1,2, and 3 are exhaustive. Discussionsabout this phenomenon use a lot of terms which are not precisely defined.For example, 'particle' and 'system'. If there is entanglement, then there is one combined system, and it is misleading to call that one combinedsystem 'two particles'.
People's comments here touch on the important issue of whether the wave function is objective or subjective. The view that probabilities representour knowledge is called the 'Bayesian' view, it is the Bayesian or subjective interpretation of probability, as contrasted to the 'objectiveview' which has some problems. But the Bayesian view has problems as well,since you wind up linking quantum mechanics with consciousness insteadof with material measuring apparati such as Geiger counters and bubble chambers.
So another answer to your question is the following: people preferto talk about an active link because they cannot accept the subjectiveinterpretation of probability and the wave function. There is a lot of current research studying quantum measurement as an actual physical process involving thermodynamic limits of unstable negative temperaturesystems (bubble chambers etc.).
alternative 1 implicitly assumes that in the combined system there are 'two particles', but this is probably a fallacy: quantum mechanics does not really recognize any precise notionof particle. As in thermodynamic limits, the notion of 'particle' is a useful approximation within a certain range of set-ups, and losesvalidity and leads to paradoxes if you attempt to use it outsidethe limits of its validity.
This is not correct. The particles are entangled before the measurement. Measurement makes the state of a particle known. After measurement we find that not only is the particle's state defined but its partners is too. There is no way to measure one of them without affecting the other. The states after measurement are not necessarily identical. Measuring entangled particles yields random results that do not correlate to expectations of how they will behave.
Your idea that measuring one particle reveals information about the already existing state of the other fails because: a) Only their joint future measurement context (settings) are a factor in the statistical outcomes (that's basic QM); and b) That context (the measurement settings) can be selected when the particles are far apart - too far apart for any relativistic signal or action to be exchanged between them.
And the rest is understood by Lubos Motl's answer . Why the wave function isn't a real wave and hence can travel faster than light in some cases and not in some other cases. Your real particles can't travel faster than light and the wave funciton evolution will adjust automatically according to the given constraints for that, in QFT not in non relativistic quantum mechanics.
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