11.11 Tips & Tricks
Forgive my laziness, I meant to make a proper faq and completely forgot. Now I feel a bit awful and my head is a bit foggy, so I'm copy/pasting last year's faq. Some of these tips may no longer be re...
godaddy/activerecord-delay_touching
Batch up your ActiveRecord "touch" operations for better performance. ActiveRecord::Base.delay_touching do ... end. When "end" is reached, all accumulated "touch" calls will be consolidated into as few database round trips as possible. (⭐ 111)
disney/disney.github.io
Disney (⭐ 111)
Structural Investigation of InAs-AlInAs and InAs-AlInP Core-Shell Nanowires
InAs nanowires were grown on GaAs substrates by the Au-assisted vapour-liquid-solid (VLS) method in a gas source molecular beam epitaxy (GS-MBE) system. Passivation of the InAs nanowires using InP shells proved difficult due to the tendency for the f...
You've got to hide your myopia away: John Lennon's contact lenses
Points: 175 | Comments: 184 | Author: geox
Reinforcement Learning of the Prediction Horizon in Model Predictive Control
Model predictive control (MPC) is a powerful trajectory optimization control technique capable of controlling complex nonlinear systems while respecting system constraints and ensuring safe operation. The MPC's capabilities come at the cost of a high...
Readability Formulas, Systems and LLMs are Poor Predictors of Reading Ease
Methods for scoring text readability have been studied for over a century, and are widely used in research and in user-facing applications in many domains. Thus far, the development and evaluation of such methods have primarily relied on two types of...
为什么-8对应的原码、补码是1000，反码是1111? - 知乎
答：负数补码=反码+1，反码前面已经算出来了是1111，1111+1=10000，第5位1存不下，溢出了，其实就变成了0000，按这个算法，它的补码就应该是0000对吧？ 为什么实际上它的补码为1000呢？ 因为 …
11，111，1111，11111，… 这个数列中仅有一个质数吗？怎么证明或证 …
例如 n=4 时，1111可以分解为101 × 11。 n=6 时，111111可以分解为111 × 1001，或者10101 × 11。 因为存在非1和自身的因子，所以它们是合数。 要严格证明一个数是否为质数，尤其对于这种大数，需要 …
如何看待1111？ - 知乎
Sep 16, 2021 · 1111に関する議論や意見が集まるページです。
1，11，111，1111，11111的通项公式是什么？ - 知乎
知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区 …
11，111，1111，11111，… 这个数列质数有限吗？怎么证明或证伪1？
。总之它并没有被解决，不能确定是否有限还是无限，更不用说证明它或者证伪它。 事实上，如果 R_n 要是素数，那么 n 必然会是素数，否则假设为 n=st ,那么 R_n=\frac {10^ {st}-1} {9} = \frac { (10^s-1) …
11，111，1111，11111，… 这个数列中仅有一个质数吗？怎么证明或证 …
显然 11, 1111111111111111111, 11111111111111111111111 \displaystyle ~~11,~1111111111111111111,~11111111111111111111111\\ 都是质数. 所以你这个问题应该改成 问题 1： …
Search for new physics in top quark production in dilepton final states in proton-proton c…
A search for new physics in top quark production is performed in proton-proton collisions at 13 TeV. The data set corresponds to an integrated luminosity of 35.9 fb$^{-1}$ collected in 2016 with the CMS detector. Events with two opposite-sign isolate...
Why We Daydream: What Mind-Wandering Says About Attention and ...
2 days ago · Why does the mind wander? Discover what science says about mind-wandering, daydreaming, attention, and creativity. .
What Your Mind Does When You Daydream - sciencenewstoday.org
Jun 28, 2025 · Daydreaming is how we rehearse for reality. It’s our brain’s way of preparing us for challenges, expressing longings, processing regrets, or trying out courage in a world that feels safer …
What is daydreaming in psychology? - California Learning Resource …
Jul 2, 2025 · Daydreaming, synonymous with mind-wandering or task-unrelated thought (TUT), is technically defined as a shift of attention away from external tasks towards internal, self-generated …
What to Know About Excessive Daydreaming - WebMD
Jul 11, 2025 · Excessive daydreaming is often associated with anxiety, and some researchers have found that it may be linked to feelings of guilt, dysphoria, and inability to control your attention.
Why and How You Daydream - Psychology Today
Jan 8, 2013 · Daydreaming is a universal human experience. Our minds wander in and out of contact with the outside world and, as they do, a network in the brain becomes more or less active.
5 Positive Effects of Daydreaming - Verywell Mind
Dec 23, 2025 · While some are concerned that daydreaming is a waste of time, it also provides some benefits. Learn five positive effects of daydreaming, making it time well spent.