Gamma-aminobutyric acid receptor subunit alpha-1 (GABRA1) is a protein that is part of the gamma-aminobutyric acid (GABA) receptor complex, which plays a crucial role in the central nervous system (CNS). GABA is the primary inhibitory neurotransmitter in the brain, and its receptors are essential for regulating neuronal excitability.
The American Mathematical Association of Two-Year Colleges (AMATYC) is a professional organization dedicated to the improvement of mathematics education at the two-year college level in the United States. Established in 1974, AMATYC focuses on enhancing the educational experience for students in two-year institutions through various initiatives, including professional development for educators, curriculum development, and advocacy for mathematics education.
Chirped Pulse Amplification (CPA) is a technique used in laser physics to amplify short laser pulses to high energies without causing damage to the amplifying medium. This method is particularly significant in the generation of high-intensity laser pulses, which have applications in various fields including medicine, material processing, and fundamental physics research.
American nuclear weapons testing refers to the series of tests conducted by the United States to develop, assess, and demonstrate the capabilities of nuclear weapons. These tests have occurred primarily in the 20th century and into the early 21st century, primarily during the Cold War when the U.S. was engaged in a nuclear arms race with the Soviet Union. **Key Aspects of American Nuclear Weapons Testing:** 1.
BCJ (algorithm) by Wikipedia Bot 0
The BCJ algorithm, named after its creators Bhatia, Choudhury, and Jain, is a data encoding and compression technique used primarily for compressing numerical data. Although details about this specific algorithm may not be widely available in mainstream resources, it generally focuses on improving data storage efficiency by utilizing mathematical transformations and compressing numerical sequences more effectively than traditional methods.
Integrated circuit by Ciro Santilli 37 Updated +Created
It is quite amazing to read through books such as The Supermen: The Story of Seymour Cray by Charles J. Murray (1997), as it makes you notice that earlier CPUs (all before the 70's) were not made with integrated circuits, but rather smaller pieces glued up on PCBs! E.g. the arithmetic logic unit was actually a discrete component at one point.
The reason for this can also be understood quite clearly by reading books such as Robert Noyce: The Man Behind the Microchip by Leslie Berlin (2006). The first integrated circuits were just too small for this. It was initially unimaginable that a CPU would fit in a single chip! Even just having a very small number of components on a chip was already revolutionary and enough to kick-start the industry. Just imagine how much money any level of integration saved in those early days for production, e.g. as opposed to manually soldering point-to-point constructions. Also the reliability, size an weight gains were amazing. In particular for military and spacial applications originally.
Video 1.
A briefing on semiconductors by Fairchild Semiconductor (1967)
Source.
Shows:
Verilator by Ciro Santilli 37 Updated +Created
Verilog simulator that transpiles to C++.
One very good thing about this is that it makes it easy to create test cases directly in C++. You just supply inputs and clock the simulation directly in a C++ loop, then read outputs and assert them with assert(). And you can inspect variables by printing them or with GDB. This is infinitely more convenient than doing these IO-type tasks in Verilog itself.
Some simulation examples under verilog.
First install Verilator. On Ubuntu:
sudo apt install verilator
Tested on Verilator 4.038, Ubuntu 22.04.
Run all examples, which have assertions in them:
cd verilator
make run
File structure is for example:
Example list:
Proactive maintenance is an approach to maintenance that aims to anticipate and prevent equipment failures before they occur. Unlike reactive maintenance, which involves responding to equipment breakdowns after they happen, proactive maintenance focuses on identifying potential issues and addressing them ahead of time to minimize downtime, extend the lifespan of assets, and optimize overall performance.
Beam spoiler by Wikipedia Bot 0
A "beam spoiler" typically refers to a component used in some types of vehicles, particularly in the context of sports cars or performance vehicles. It is often designed to disrupt airflow over the body of the car to reduce lift and increase downforce, improving traction and handling at high speeds.
Bearing capacity by Wikipedia Bot 0
Bearing capacity refers to the ability of soil or rock to support the loads applied to the ground without experiencing failure or excessive settlement. It is a critical parameter in geotechnical engineering and construction, as it determines how much weight a foundation can safely support. There are two primary types of bearing capacity: 1. **Ultimate Bearing Capacity**: This is the maximum load per unit area that the soil can support without failure.
The Georgia Tech Quantum Institute (GTQI) is a research and academic initiative at the Georgia Institute of Technology focused on advancing the field of quantum science and technology. It aims to foster interdisciplinary collaboration among scientists, engineers, and educators to explore the principles of quantum mechanics and their applications in various sectors, including computing, communications, and materials science.
Georgii Polozii by Wikipedia Bot 0
Georgii Polozii is a Ukrainian mathematician known for his contributions to the field of mathematical analysis and applied mathematics. His work often involves topics such as differential equations, mathematical modeling, and numerical analysis.
Chemical potential is a fundamental concept in thermodynamics and physical chemistry that describes the change in free energy of a system when an additional amount of substance is introduced, under constant temperature and pressure. It is a measure of the potential energy per particle in a system and reflects how the concentration of a species influences its behavior in a mixture.

Pinned article: ourbigbook/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