CLCN2, or Chloride Channel 2, is a gene that encodes a protein belonging to the CLC (chloride channel) family of ion channels. These proteins play crucial roles in regulating the flow of chloride ions across cellular membranes, which is important for maintaining cellular homeostasis, volume regulation, and electrical excitability in various tissues.
The Incremental Capital-Output Ratio (ICOR) is an economic measure that represents the additional amount of capital needed to produce an additional unit of output. It is a useful tool for assessing the efficiency of investment in generating economic growth within an economy.
The Information Ratio (IR) is a financial metric used to measure the performance of an investment, such as a mutual fund or a portfolio, relative to a benchmark index, while taking into account the risk taken to achieve that performance. It provides insight into how much excess return (alpha) an investment generates for each unit of risk (tracking error) relative to the benchmark.
The PEG ratio, or Price/Earnings to Growth ratio, is a financial metric used to evaluate a stock's valuation relative to its earnings growth rate. It is calculated by taking the Price-to-Earnings (P/E) ratio and dividing it by the expected growth rate of the company’s earnings (typically over the next 5 years).
Return on Capital (ROC) is a financial metric used to assess a company's efficiency in generating profits from its capital. It measures how well a company utilizes its capital to generate earnings, providing insight into the effectiveness of its management and the attractiveness of its investment.
Return on Equity (ROE) is a financial metric that measures the profitability of a company in relation to shareholders' equity. It indicates how effectively management is using a company's assets to create profits. ROE is an important measure for investors and analysts because it shows how well a company is generating returns on the equity invested by shareholders.
Return on Net Assets (RONA) is a financial performance metric that measures the efficiency of a company in generating profits from its net assets. It is calculated by taking the net income of the company and dividing it by the total net assets (which are typically total assets minus total liabilities).
Time to Value (TTV) refers to the duration it takes for a product, service, or solution to provide tangible benefits or value to a customer after they have made a purchase or engaged with it. This concept is particularly important in various industries, including software as a service (SaaS), where customers expect to see results quickly after implementation. A shorter TTV means that a customer can realize the benefits of their investment sooner, leading to higher satisfaction and potentially improved retention rates.
The Upside Potential Ratio (UPR) is a financial metric used to assess the performance of an investment relative to its potential for capital appreciation. It measures the amount a security (or portfolio) could gain in value relative to the losses it might incur during downturns. The ratio provides insight into the risk-reward profile of an investment.
Ion channel openers are compounds or substances that stimulate the opening of ion channels in cell membranes, facilitating the flow of ions such as sodium, potassium, calcium, or chloride across the membrane. These channels are crucial for various physiological functions, including the generation of action potentials in neurons, muscle contraction, and the regulation of cellular excitability. Ion channel openers can have various therapeutic applications.
CACNG2, or calcium voltage-gated channel auxiliary subunit gamma 2, is a gene that encodes a protein involved in the functioning of voltage-gated calcium channels. These channels play a critical role in regulating calcium ion flow into cells, which is essential for various physiological processes, including muscle contraction, neurotransmitter release, and the overall regulation of cellular signaling.
HTR3A (5-hydroxytryptamine receptor 3A) is a gene that encodes a subunit of the 5-HT3 receptor, which is a type of neurotransmitter receptor that responds to the neurotransmitter serotonin (5-hydroxytryptamine, or 5-HT).
HTR3B, or 5-hydroxytryptamine receptor 3B, is a gene that encodes a protein which is part of the serotonin receptor family. Specifically, it is one of the subunits of the 5-HT3 receptor, a type of ligand-gated ion channel that is activated by the neurotransmitter serotonin (5-HT).
HTR3C refers to the serotonin receptor 3C, which is a subtype of the 5-HT3 receptor family. These receptors are ligand-gated ion channels that are activated by the neurotransmitter serotonin (5-HT). The 5-HT3 receptors are primarily involved in the central and peripheral nervous systems, playing crucial roles in processes such as mood regulation, anxiety, nausea, and vomiting.
Ion channel toxins are specialized proteins or small molecules that disrupt the normal functioning of ion channels in cell membranes. Ion channels are integral membrane proteins that allow the selective passage of ions (such as sodium, potassium, calcium, and chloride) across cell membranes, playing critical roles in various physiological processes, including nerve impulse transmission, muscle contraction, and hormone secretion.
Potassium channels are a type of ion channel found in the membranes of cells, responsible for the selective passage of potassium ions (K+) across the membrane. They play critical roles in various physiological processes, including the regulation of cell membrane potential, the generation and propagation of action potentials in neurons and muscle cells, and the regulation of neurotransmitter release.
Proton channels are specialized protein structures that facilitate the selective movement of protons (H⁺ ions) across cell membranes. These channels play crucial roles in various physiological processes, including cellular respiration, signal transduction, and maintaining pH balance within cells.
SURBL (Spam URI Realtime Blocklists) is a system used to identify and block spam and malicious content on the internet by analyzing URIs (Uniform Resource Identifiers) and URLs (Uniform Resource Locators) found in messages and posts. Unlike traditional blocklists that focus on IP addresses or domain names, SURBL specifically targets the links included in emails and other online content that may lead to spammy or harmful websites.
Sodium channels are integral membrane proteins that facilitate the movement of sodium ions (Na⁺) across the cell membrane. They play a crucial role in a variety of physiological processes, including the generation and propagation of action potentials in neurons and muscle cells.
The 5-HT3 receptor is a type of serotonin receptor that is part of the ligand-gated ion channel family. It is primarily involved in mediating the effects of serotonin (5-hydroxytryptamine, or 5-HT) in the central and peripheral nervous systems.

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 5. . 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.
  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