PM Rishi Sunak just addressed the issue of grooming gangs in UK, why a special task force needs to be created to tackle this issue, shouldn't it be a law enforcement issue? These are any other miscreants in the society which should be handled by law enforcement team. Or is there more to this gang...

Despite working with AES-GCM and other AEAD algos for a few years, I've struggled with the concept of 'authenticated' in the term 'AEAD'. In my own experience (of Unix, PKI and blockchain) authentication means being able to attribute actions towards a particular entity (eg, a user account). In th...

I have submitted an phd application, and I made a made a mistake by instead of setting the degree conferral date to 2023, I did to 2022, can I send them an email they will give me a second chance to correct it?

I found this old article by Steven Frautschi 1 which talks about avoiding heat death by a hypothetical advanced civilization able to group Black Holes in clusters. He writes that in this way, the civilization could endure forever by consuming the energy from the Black Hole (for example, taking th...

I want to extract table from the image bellow as a list of strings. I tried the following but it does not work. im=Import["https://i.sstatic.net/Tt6AH.png"]; TextRecognize[im] FindImageText[im,"Character","Image"] (* "" *) (* {} *)

I am trying to define a newcommand \ifempty that takes three parameters: A macro that has been tied to a pgfkey via /.store in OR /.estore in What to do in case this macro has not been set yet (is empty) What to do in case this macro has been set (is not empty) My current code is the following...

I'm reading the book La chanson de geste by Jean Rychner. In a certain passage, the expression "epic caesura" ("césure épique" in the French original) appears, which I don't understand. This is my translation from French to English. In the sentence the metrical conditions that the formulas used i...

So in my sci-fi future, humanity has spread across the universe, made contact with plenty of sentient races, and advanced technology greatly. However, very few bases in the vacuum of space can use artificial gravity, since it takes so many materials to create an O’Neill Cylinder. This is going to...

I'm making jelly. The box of pectin says not to reduce the sugar or it can cause 'set failure'. I want to use 'erythritol w/ monk fruit extract' in place of sugar (purchased from Costco). Will that effect how my jelly will set b/c it's not regular sugar?

TLDR; BSOD on boot because of the enabled Driver Verifier. Can't login to Safe Mode to turn it off because I only remember the PIN, not the Password. Safe Mode with Network seems to be broken and doesn't connect to network (neither wifi nor ethernet). The Problem: I've been trying to solve the pr...

Here is a little newcommand exo with one argument (for a title for example). Without this argument, the alignment is bad. Is it possible to improve this ? \documentclass[a4paper]{article} \usepackage[T1]{fontenc} \usepackage{lipsum} \usepackage{tikz} \newcounter{counter} \newenvironment{exo}[1]...

My lecturer said I CANNOT multiply an element of a Lie group with a vector of the tangent space at some point of the Lie group. Why is that, it seems to me that he does it all the time, for instance If $G$ is a Lie group, $e$ the identity element of the Lie group, $Z \in T_eG$ to differentiate $\...

I am a physics student taking ODE this semester. Let's consider an initial value problem. Consider a homogenous second-order linear differential equation. Suppose we have two solutions $\varphi_1(x)$ and $\varphi_2(x)$. To my understanding, we check the Wronskian to confirm whether we can span th...

I'm trying to create my own RPG, to play with friends. To be honest, I never played published RPGs before, only home-brewed ones, but I don't feel like spending money on a thing that I may never use, and designing is fun! I'm basing off my dice system out of Vampire: The Masquerade (5th edition)....

While watching the sixth episode of Tales of the Jedi, a sith inquisitor, voiced by Clancy Brown: When the inquisitor dies, it appears that his head deflates: Is this down to the inquisitor's biology, or the fact that Ahoska was fighting some sort of dark-side apparation, or was he just a human...

Suppose one has washed some vegetables and we want to tell him separate the water (liquid part) from the vegetables (solid part). Which ones of the following sentences are correct? 1 Strain off the vegetable, please. 2 Strain off the water, please. 3 Strain the vegetable, please. 4 Strain ...

UPDATE: the country is Ukraine. Arnie is a registered entrepreneur who sells raw wood. He was contacted by Bob. Bob works in a state organization (not private), and was tasked with building several garages on one of the streets of a city. Bob was given a budget, and needs to buy materials for the...

I am imagining a scenario where the planets, not just Mars and Venus, but Uranus Saturn and Neptune, have been terraformed, the latter three by stripping away their atmospheres to leave the terrestrial earth-sized cores. (Jupiter was not terraformed for reasons I will not bore you with here). Cou...

Given $f(x) = a^x$, one can compute the derivative of $f(x)$ using the chain rule quickly by noticing that $f(x) = a^x = \left(e^{ln(a)}\right)^x$. But how would you go about computing the derivative of $f(x)$ without the chain rule, with just the $f'(x) = \lim_\limits{h \to 0} \frac{f(x + h) - f...

I'm watching which files / directories are being written to on my Ubuntu 22.04.1 LTS installation (kernel v. 5.15.0-52-generic). Suddenly I'm seeing writes to /proc/85/root/tty every 1 second. I know this may be some specific process (such as firefox) to my machine. If so, can you tell me how I ...

I have seen some sites attributing「セキ」to 関 as in: https://jisho.org/search/%E9%96%A2 https://yuki19925704.com/igo-seki/ (scroll to section that talks about 囲碁の「セキ」の語源) However, the classic term in Chinese is 持 and I saw this word being mentioned in: https://ja.wikipedia.org/wiki/%E6%8C%81%E7%A...

I know that the JLPT levels are not an official list, but still, it is based on the many JLPT tests that has been done. My question is more about how to estimate the level difference between the hiragana and the kanji version of a word. Here is an example: どなた is ranked N5 何方 is ranked N1 何 kanj...

I live next to a condo complex, and just received a letter informing me that they're going to tear down their fence and replace it with a chain link fence - a "more maintenance free and up to date concept". The fence is entirely on their property (set back a foot or so), so there's no question t...

I have the following list of files: main.acn main.acr main.alg main.aux main.glg main.glo main.gls main.ist main.lof main.log main.lot main.nlo main.out main.pdf main.tex main.toc I want to rm all of the main.* files except for main.tex and main.pdf file. I tried rm main.* !("main.tex","main.pdf"...

I watched this film in the mid 1990's, but I'm about 90% sure it was a black and white movie, so was likely from the 1950s or 60's. The film was set in an American town that was sparsely populated. Either an alien invasion or a chemical/nuclear accident caused creatures that looked like woodlice ...

As seniority increases, admin tasks increase, and effective time for research decreases. There's no way around investing long hours in replying to e-mails, filling up budget forms, and screening/interviewing prospective lab members. Assuming there's no additional staff to help, this can take almo...

Good evening everyone, During an interview today I got asked the following question but couldn't quite figure it out: "Two brown bird and six red birds are flying around the sky and suddenly all land randomly on a telephone wire. What's the probability that the two brown birds are sitting side by...

I am trying to make a fairly complicated plot that involves LineLegend. As part of the LineLegend's label, I am using Row[{("test=0.01")/("testing=0.01")}]. Is there a straightforward way to align the equal signs?

I was trying to answer question on another forum, to say that they can use Latex instead for this, only to find I can't figure how to do this in Latex myself. Is it possible to have 2 equations one in the numerator and one in denominator, be aligned at = in each? Here is MWE \documentclass[12pt]{...

I had a wall-mounted television in my old house. While taking down the TV, in preparation to move it to my new house, I saw that it had utilized wall anchors. This is not a reusable wall anchor, so I need to purchase new ones to mount the TV in my new house. I'm quite familiar with wall anchors f...

As an advisor, at what point do you decide that a PhD student no longer deserves authorship on a paper? I am an associate professor who is very active in engineering research at a low-ranked R2 institution. Most non-top-10 institutions have a hard time attracting good PhD students, but here it is...

I have encountered a spec of a laser diode given in dBm/nm instead of dBm: If I want to know the average power between 2065nm and 2075nm, would the integral of that section give the average power in dBm? And what is the purpose of using dBm/nm and what does it mean?

Kubuntu runs KDE, not GNOME, right? So why does Discover want me to update to GNOME Application Platform version 3.38?

This was a 90s TV show. I want to say it was by Gene Roddenberry and it wasn’t Earth: Final Conflict, but it was around the same time. In it they used this handheld VR looking kind of Internet surfing, where they would use their hands like they were surfing with their hand outside a car to surf t...

As reported on FoxNews. This immediately triggers my skepticism since it seems pretty extreme.

In light of the upcoming critical OpenSSL 3.0.7 security fix, how do I change NixOS over to use LibreSSL globally instead of OpenSSL?

I searched Bricklink for bathrobe and dark turquoise/magenta torso but couldn't find it. Can anyone identify this?

Sums and products are usually centred vertically. However, I find the following looks a bit silly, with the big vertical space above the sum expression: \documentclass{article} \usepackage{amsmath} \begin{document} \[ \max_{y\in Y} \left\{ \sum_{\substack{x\in X\colon \\ f(x) = y}} g(x,y) \ri...

What is the meaning of "on its side" in the following sentence, Uranus is the only planet to spin round on its side. ? Does "side" mean "axis" ?

When an enemy leaves the reach of a Pact of the Chain warlock, and the warlock gets a physical opportunity attack, can the familiar deliver it to that enemy if both use their reactions?

I have an empty folder named iMovie stored in my Documents directory, ~/Documents/iMovies. I don't have any files in this folder but I notice it has a unique folder icon compared to other folders. Can I delete it? Will there be any risk?

Question: Is a polynomial time algorithm known to find all maximal subgroups (up to conjugacy) of a given group? (by polynomial time, I mean polynomial in the input size). If there is, please share a reference and also mention for which representation of the group the algorithm works. If no such ...

I know that states in quantum mechanics are positive trace class operators acting on a separable complex Hilbert space $\mathcal H$ and having trace = 1. Specifically, pure states are one-dimensional orthogonal projections that of course can be identified with the one-dimensional subspace itself....

I would prefer to use iTerm rather than the built-in OS X Terminal application. Is there a way to do this?

The floating window of LSP in neovim uses different colors for different kinds of diagnostics: red for errors, yellow for warnings, etc. How do I disable all colors?

I want to save the cross-section images of 3D cylindrical objects which have bulk and empty spaces in them. I couldn't find any question/answer to this here, while most of the previous questions are about visualizing the cross-section or taking slices with some thicknesses.

Here's my mwe: I keep getting the following error: How can I write Korean in LaTeX? Also, I tried compiling with both XeLaTeX and LuaLaTeX but I still get the same errors. Please help and thank you.

I have performed a study where I tested 2 groups, before and after two different types of manipulations. The main outcome of my study were the group differences at time point 2. Now someone asks what the reliability of my outcome score is. Could any observed changes be an artifact of the measurem...

Currently, I submitted my article to the frontiers series and received comments from the reviewers. After revising the article, I let a native English speaker help me to check it. She made great revisions for me, especially in improving the writing (eg. grammar/choosing a better word/changing the...

If $X$ is the space of all bounded continuous Real valued functions defined on $\mathbb{R}$ . For every $f$ belonging to $X$ define $$ \|f\|_\infty=\{\sup|f(x)| ,x \text{ belongs to } \mathbb{R}\}. $$ I have proved that $X$ is a Banach space. The question is: $Y=\{f \text{ belongs to } X , f \te...

I want to set up a Magento compatibility tool locally to see if my modules are compatible with magento2.4.5 and php8.1, are there any other extensions or tools available for checking compatibility?

When playing the descending scale in the images shown, I always use finger 3 (orange) on the black F# key (3214321) because it's easier than finger 4 (printed) as it's far from the center and the hand needs to turn inward. I noticed almost all the printed fingerings suggest finger 4 (4321321). I...

I have solved the vector field for the problem: vfield1 [x_,y_] := { 1 - (x ^2-y^2)/(x^2+y^2)^2,-2x*y/(x^2+y ^2)^2} pl1 = VectorPlot [ vfield1 [x,y] , { x, - 3, 3 } , { y, - 3, 3 } , VectorStyle -> Blue, RegionFunction -> Function [{ x, y, vx, vy, norm } , ( x ) ^ 2 + ( y ) ^ 2 >1 ]] ; where v...

I have to design an instrumentation amplifier using 2 op-amps and I have the following specifications: Use an LM324 quad op-amp Use a single power supply of 7 V to power the op-amp and build the reference voltage. Build a reference voltage using A3 from the schematic in order to: 3a. maximize t...

I'm writing a difficult paper for my PhD. My first draft is rambling and long, so I'm cutting it down for the next round of edits. However, I find it difficult to discard old writing. Some of the paragraphs I'm discarding may still be valuable for my future PhD, so I put them in 'discard' documen...

Why is there no divsion by degrees of freedom in sample correlation? The same seems to hold for the coefficent of the depandt variable using linear regression. To me it look like some kind of sample variance and sample covariance but not divided by $\frac{1}{n-1}$ Any ideas?

"Not sure whether I'll show up, but if I will, I'll probably let you know at the last minute." Is it correct or should it be "if I do"? I'm on the fence here because showing up happens after letting them know that I will show up. So the sequence goes like this: If I decide I'm going to show up, I...

This question is probably simple, but I am confused.. Assuming we have an arbitrary charge density $\rho_e$ inside a volume $V$. Studying electrostatics, Gauss's law equation would be $\nabla\cdot E=\rho_e/\epsilon_0$ and the Poisson equation would be $\nabla^2\Phi=\rho_e/\epsilon_0$. I have seen...

Indexing console Everything else is working perfectly. i also disabled the elasticsearch and checked but error still there. Error is with Query, at last word "AND (())", when i remove this and run directly on Mysql, it works. Where this Query is written so i could fix it. Thanks

Say that you have this code in the preamble to get your pictures of different sizes centered (vertically and horizontally) in a tabularx environment (the pictures are included with \includegraphics in each cell): \newcolumntype{C}{>{\centering\arraybackslash}X} How could you manage to make the s...

dear community! In morphology, there is this concept of inherent inflection vs. contextual inflection, which is mainly associated with the Dutch morphologist Geert Booij. In the case of inherent inflection, the choice of form is determined by what the speaker wants to express. The difference in f...

The question Why do patent description contains serial numbers like [0001], [0002] etc? is about paragraph numbers. Can a regular patent application be submitted with line numbers? For example, 5 the first lever operatively coupled to the second lever; the third level operatively couple...

I’m trying to get a derivative of $\sec(x)$ with respect to x. The correct derivative is $\dfrac{\sin(x)}{\cos(x)^2}$, though this is not match the value that I was trying to solve. Since $\sec(x) =\dfrac{1}{ \cos(x)}, \sec(x)’ =\bigg(\dfrac{1}{\cos(x)}\bigg)’ = \dfrac{-1}{\cos(x)^2}$ But when I...

Is the following pronunciation of the word “tour” attested in any common dialect of British English? [tɔ˞] This is approximately how I, a native British English speaker, pronounce it. However, it’s been described by a non-native speaker as “unintelligible”. The dictionary pronunciation is [tʊər...

The following sentence is from the BBC web site Trapped That effort too came to nothing. We were taught in English classes that too can be used in positive sentences, and either in negative sentences. So, why was "too" used in this negative sentence?

In this position I thought I was winning with white, like +2 or +2.5. But Lichess Analysis shows evaluation as -1.4. [Title "Black to move after Ne5"] [fen "rn3rk1/1p1b3p/p2n1qp1/3PNp2/P7/1B5P/1PP2PP1/R2QR1K1 w - - 1 0"] The bishop is beautifully placed. The knight will infiltrate. There is a di...

I have little misunderstandng why my ~/Library/LaunchAgents/com.user.loginscript.plist doesn't work. Here is NOT working code inside my plist: <key>ProgramArguments</key> <array> <string>switchaudiosource</string> <string>-s</string> <string>MacBook Pro Speakers</string> </array> and here is the...

How can I make thundermail sync E-mail in the background and notify of new e-mails as they arrive? Applications like Evolution have a background service that allows it to sync email even when the app is closed. Thundermail for me doesn't receive e-mail when I close the app. The answers here are o...

Context: There is currently a nationwide shortage of Adderall, a schedule 2 drug. One of the pieces of advice for patients is to see about getting the drug in a different formulation, as not all versions of Adderall are equally out of stock (Size of pill, extended release vs immediate release,...

We say that a manifold M is n-dimantional if it is locally Euclidean of dimension n, specifically if a point p in M has a neighborhood $U_p$ such that there is a homeomorphism f from $U_p$ onto an open subset of $\mathbb{R}^n$. My question is, can it be n-dimensional in some neighborhood and m-di...

At the large hotel where I work in the engineering department the big Halloween event is the annual Pumpkin Derby...and we've lost every year to the culinary department. It's embarrasing! This year, though, we caught them in the act. Since they're in charge of distributing the pumpkins, they kept...

Total beginner here so please be gentle. I'm looking at the Apollo 11 flight path angle plot from Apollo Saturn V Postflight Trajectory AS 506 which shows a zero degree angle at launch. Isn't path angle measured from the horizontal? In fact, this plot levels back out at zero after orbital insert...

I have an assignment to write a Term Paper, and in developing the Title for it, there are guidelines to follow. One of the guidelines read: Are there theoretical and conceptual underpinnings involved? If so what would their functions be in the review. What does Theoretical and Conceptual underp...

This is a short story where women came from another planet in a stranded spaceship, killed the original Earth women, mated with the men and remained in control up to modern times. Men who discover this are quietly killed.

This puzzle is part of the Monthly Topic Challenge #4: Cross-*non*-words I've already got two crosswords for the challenge. Recently, the fraternities, the sororities and I worked together to make a third crossword in memory of their naming convention. Solve each cryptic clue, then transliterate...

An important goal in writing is to avoid plagiarism. But does this mean we have to state every idea in phrases we've never heard before?

Does anyone know of a native Mathematica function or a package that allows one to decompose an arbitrary Hamiltonian into Pauli strings? There are a few packages for Python that do this (e.g., one from Pennylane), but I don't know of any for Mathematica. If not, does anyone have any insight on ho...

Given two research articles A, B, is it common for them to have mutual citations, in the sense A is cited in B and B is cited in A? Does it not create (an initial) confusion on which work is done first? As an example, you can take paper A to be https://sciencedirect.com/science/article/pii/S00018...

I was reading the newspaper, and an article mentioned that the government was going to lower interest rates. What does that mean? I'm confused because the news always assumes that you know what they're talking about, but they're actually saying something completely ambiguous. Interest rates on wh...

If we are measuring spin-up or spin-down then we write the wavefunction (I think) as $$ \require{physics} \psi = \tfrac{1}{\sqrt{2}} |{\uparrow}\rangle+\tfrac{1}{\sqrt{2}} |{\downarrow}\rangle $$ But if we emit a particle, only to make a measurement after a long period of time and distance, and ...

From wikipedia: For example, there are models of Peano arithmetic in which Goodstein's theorem fails. It can be proved in Zermelo–Fraenkel set theory that Goodstein's theorem holds in the standard model, so a model where Goodstein's theorem fails must be non-standard. If my understanding is cor...

As the title suggests, I am looking to gain a good understanding of what higher dimensions are and how they operate, particularly in mathematics. And how I can build an intuitive understanding of this concept. I'm a college student and top-performing at mathematics for those wanting to know my sk...