A **pseudometric space** is a generalization of a metric space. In a metric space, the distance between two points must satisfy certain properties, including the identity of indiscernibles, which states that the distance between two distinct points must be positive. However, a pseudometric space relaxes this requirement. Formally, a pseudometric space is defined as a pair \((X, d)\), where: - \(X\) is a set.
VCX score is not a widely recognized term, and as of my last knowledge update in October 2021, it wasn't associated with a specific, standard definition in finance, technology, or other common fields. However, it is possible that it could refer to a proprietary or specialized metric used in a particular context, such as a business, tech, or analytics domain.
Rosa María Farfán is a public figure, but there may be multiple individuals or references associated with that name in different contexts or regions. Without more specific information, it's difficult to determine who or what exactly you are referring to. If you can provide additional context, such as the area of activity (e.g.
A teaspoon is a small spoon typically used for measuring or stirring ingredients in cooking and baking. It is also a unit of volume measurement, particularly in recipes. In the context of measurements, one teaspoon is equivalent to about 4.9 milliliters. It is commonly used to measure liquids, such as water or oil, as well as dry ingredients like sugar or spices. In many recipes, teaspoons are abbreviated as "tsp.
Engineering ratios are quantitative relationships between two or more measurements used to analyze, design, and optimize systems in various engineering disciplines. These ratios help engineers understand how different factors in a system relate to one another, allowing them to make informed decisions based on performance, efficiency, safety, and cost considerations.
"Pound for pound" is a phrase commonly used to compare the overall performance, quality, or value of different entities, regardless of their size or weight. It is often used in contexts like sports, especially in combat sports such as boxing and mixed martial arts (MMA), to evaluate fighters based on their skill level rather than their physical size. For example, a smaller fighter may be considered one of the best pound-for-pound fighters if they consistently outperform larger opponents or dominate their weight class.
A single transmembrane protein that moves ATP out and ADP in of the mitochondrion. So crucial.
Present in chormosome 4.
Video 1.
Energized about the Mechanism of ADP/ATP Transport by Ruprecht et al. (2019)
Source.
Good video showing what appears to be the adenine nucleotide translocator. although they don't use that name, instead saying ADP/ATP carrier.
The video also briefly depicts the ATP synthase and the mitochondrial phosphate carrier protein.
Adenosine triphosphate by Ciro Santilli 40 Updated 2025-07-16
The fact that ATP is the universal energy storage mollecule of all life on Earth is such an incredible unifying principle of biology!
It is the direct output of all the major forms of "energy generation" in cells: ATP synthesis mechanism.
It is just as fundamental as the genetic code for example.
No wonder dozens of Nobel Prizes were related to its discovery, given its complexity.
ATP is the direct output of all the major forms of "energy generation" in cells:
ATP synthase by Ciro Santilli 40 Updated 2025-07-16
One of the most beautiful molecular machines known!
The first one with such complexity that was uncovered.
The thing rotates like a water wheel for God's sake, except it uses protons instead of water.
The ATP synthase complex is so large that Power, Sex, Suicide by Nick Lane (2006) page 123 contains a cryoEM image of several ATP synthases on small membrane vesicles, this is the paper: pubs.acs.org/doi/abs/10.1021/bi00437a031# under a fucking paywall.
Video 1.
ATP synthase in action by HarvardX (2017)
Source.
Ribosome by Ciro Santilli 40 Updated 2025-07-16
Video 1.
Ribosome by WEHImovies (2017)
Source. The should slow that down a bit.
Video 2.
mRNA Translation by DNA Learning Center (2010)
Source.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact