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perturb
perturb, v. (pəˈtɜːb) [a. OF. per-, partourber, -turber (14th c. in Godef.), ad. L. perturbare, f. per- 2 + turbāre to disturb, confuse.] 1. a. trans. To disturb greatly (physically or externally); to cause disorder or irregularity in; to unsettle, confuse, derange, throw into confusion.c 1386 Chauc... Oxford English Dictionary
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Perturb-seq
Perturb-seq (also known as CRISP-seq and CROP-seq) refers to a high-throughput method of performing single cell RNA sequencing (scRNA-seq) on pooled genetic In the paper, “Perturb-Seq: Dissecting Molecular Circuits with Scalable Single-Cell RNA Profiling of Pooled Genetic Screens”, the authors used Perturb-seq wikipedia.org
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Perturb vs. Disturb — What's the Difference?
Aug 22, 2022I am disturbed by the document I have just read. Aug 22, 2022. Perturb. To disturb; to bother or unsettle. Aug 22, 2022. Disturb. To break up or destroy the tranquility, order, or settled state of. "Subterranean fires and deep unrest disturb the whole area" (Rachel Carson). Aug 22, 2022.
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Disturb vs Perturb - What's the difference? | WikiDiff
As verbs the difference between disturb and perturb. is that disturb is to confuse a quiet, constant state or a calm, continuous flow, in particular: thoughts, actions or liquids while perturb is to disturb; to bother or unsettle.
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Perturb vs Disturb: When To Use Each One In Writing?
Disturb might be used to describe a more intense feeling of emotional distress or upset. For example, a traumatic event might disturb someone's mental and emotional state for a long time. As these examples demonstrate, the choice between perturb and disturb can depend on the specific context in which they are used. Understanding the nuances ...
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perturb
perturb/pəˈtɜ:b; pɚ`təb/ v[Tn esp passive 尤用於被动语态](fml 文) make (sb) very worried; disturb 使（某人）烦恼、 不安 perturbing rumours 令人不安的谣言 We were perturbed to hear of his disappearance. 我们听说他失踪了, 都很不安. 牛津英汉双解词典
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Orange : l'accès aux mails actuellement perturbé pour "des millions de ...
Dec 5, 2023Une panne empêche actuellement des clients Orange de consulter leurs mails, annonce l'opérateur ce mardi. Il ne s'agit pas d'une cyberattaque, assure l'entreprise.
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Un puissant éclair de lumière cosmique a perturbé ... - TVA Nouvelles
Nov 14, 2023Un flash de lumière d'une énergie record, qui a atteint la Terre l'an dernier au terme d'un voyage de deux milliards d'années-lumière à travers le cosmos, a perturbé les hautes couches de l ...
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What does the term "perturb" mean? I've been studying Calculus of Variations and I came a cross with the term "perturb" in my study material, but the term was not defined. The sentence where I read it from was: > "Ri...
According to my dictionary **Peturb** 1. To disturb greatly in mind; disquiet 2. To throw in confusion; disorder 3. To cause (a moving body, celestial object, etc.) to deviate from a theoretically (orbital) motion. I think we can ignore the first definition here but the other two are relevant . If y...
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Perturbation of operators and eigenvalues Suppose $P\in\mathcal{B}(\mathcal{H})$ is a self-adjoint compact operator. Lets perturb $P$ by multiplying it by a bounded operator $S$ and set $T=PS.$ Then what can be said f...
The new operator $T$ is going to be also compact, as the product of a bounded and a compact and a bounded operator is also compact, and hence its spectrum, which could now contain even complex numbers, could only have as a limit point the $0$. The fact that $P$ is also self-adjoint does not change a...
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Perturbing a vector towards a line segment Suppose I have a line segment along a unit vector $\ell$ (so $-\ell$ is equally valid) and a vector $v$. If I want to perturb $v$ towards $\ell$, I can just add a vector $\v...
If the angle between $\mathbf{\ell}$ and $\mathbf{v}$ is less than a right angle then you want $$ \mathbf{d=\ell-v} $$ otherwise you want $$ \mathbf{d=-\ell-v} $$ This can be achieved in one equation with $$ \mathbf{d=\left(\frac{\ell\cdot v}{\vert \ell\cdot v\vert}\right)\ell-v} $$ If you only wish...
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Perturbing initial position Consider a non-autonomous system $ m \ddot{x} + k_1\dot{x} + k_2 x^3 = 0 $ Assume we perturb the initial position to $x_0 = x_0 + \delta x_0$. The resulting system trajectory is denoted a...
Hint : Replace $x$ by $x+e$ in the first equation and do not forget that $x$ satisfies $m \ddot{x} + k_1\dot{x} + k_2 x^3 = 0$.
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Perturbation of roots in Wilkinson's polynomial I am studying numerical analysis. When I read the online definition I found on this paragraph: * Suppose that we perturb a polynomial $p(x) = Π (x−α_j)$ with roots $α...
Define $F(x, t) = p(x) + tc(x)$. Then $$ F(\alpha_j, 0) = 0 \, , \quad F_x(\alpha_j, 0) = p'(\alpha_j) \ne 0 \, . $$ It follows from the implicit function theorem that there is a differentiable function $\alpha$, defined in a neighbourhood of $t = 0$, with $\alpha(0) = \alpha_j$, such that the solut...
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Perturbing a vector within a given max angle I am supposed to implement a fuzzy mirror in my raytracer that perturbs the reflection vector randomly within a maximum given angle around the perfect reflection vector. So...
A vector is just a length in some particular direction, right? Otherwise how would someone working in your software environment produce the "perfect" reflection vector without knowing the hitting point? So you should not care where the hitting point is. Just assume the ray is reflected at the origin...
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Need a candidates for a random-walk, but limited, perturbation. I have some time-dependent data that I would like to perturb. Just pulling numbers out of a uniform or normal distribution won't suffice. The jump in per...
If anyone's interested, after some thought, it looks like Brownian motion fits that bill. If $w_i$ is a set of random numbers like in a random walk, e.g. 1,1,-1,1,-1,-1, etc. a random walk sequence can be constructed like so: $x_i = \sum_{j=0}^i w_j$ Brownian motion just puts an exponential damping ...
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