A conjugated system in chemistry refers to a molecular structure where alternating single and multiple bonds (typically double bonds) exist, allowing for the delocalization of electrons across adjacent atoms. This delocalization occurs when p-orbitals overlap, enabling the electrons to be shared between multiple atoms rather than being localized between a single pair of atoms. Conjugated systems play a significant role in determining the physical and chemical properties of molecules, including their color, stability, and reactivity.
A constant function is a type of mathematical function that always returns the same value regardless of the input. In simpler terms, no matter what value you substitute into a constant function, the output will never change; it will always be a fixed value. Mathematically, a constant function can be expressed in the form: \[ f(x) = c \] where \( c \) is a constant (a specific number) and \( x \) represents the input variable.
Amedeo Avogadro was an Italian scientist best known for his contributions to the field of chemistry and physics. Born on August 9, 1776, and passing away on July 9, 1856, Avogadro is most famously associated with Avogadro's Law, which states that equal volumes of gases, at the same temperature and pressure, contain an equal number of molecules. This was a significant advance in understanding the behavior of gases and molecules.
In statistics, a "contrast" refers to a specific type of linear combination of group means or regression coefficients that is used to make inferences about the differences between groups or the effects of variables. Contrasts are particularly useful in the context of experimental design and analysis of variance (ANOVA), where researchers often want to compare specific conditions or treatments. ### Key Concepts: 1. **Linear Combination**: A contrast is typically expressed as a linear combination of group means.
In the context of matrices, "matrix unit" typically refers to a specific type of matrix that plays an important role in linear algebra and matrix theory. A **matrix unit** \( E_{ij} \) is defined as a matrix consisting of all zeros except for a single entry of 1 at the position \( (i, j) \).
In optimal control theory, the costate equations are derived from the Pontryagin's Maximum Principle, which is a method for solving optimal control problems. The principle provides necessary conditions for optimality when determining control strategies that minimize or maximize a certain objective (or cost) function subject to dynamic constraints.
Counterfactual quantum computation is a fascinating concept that utilizes the principles of quantum mechanics to perform computations in a way that seemingly allows for the computation to occur without actually executing the typical physical operations associated with it. The term "counterfactual" refers to the idea of reasoning about what could have happened under different circumstances, and in this context, it involves analyzing quantum states and their interactions in a manner that does not require the actual execution of all the steps involved in a computation.
The American Geophysical Union (AGU) is a professional organization representing thousands of scientists and researchers in the fields of Earth and space sciences. Founded in 1919, the AGU aims to promote and advance the understanding of the Earth and its environment in space, connected to the broader field of geophysical sciences. The organization serves a diverse community of scientists by providing opportunities for collaboration, research sharing, and professional development.
The American Geophysical Union (AGU) is a professional organization dedicated to advancing the understanding of Earth and space sciences. It publishes a range of academic journals that cover various topics within these fields. The AGU's journals are known for their rigorous peer-review process and are highly regarded in the scientific community.
The American Nuclear Society (ANS) is a professional organization that promotes the advancement of nuclear science and technology. Founded in 1954, ANS serves a diverse membership, including professionals, researchers, educators, and students involved in various fields related to nuclear energy, radiation, and nuclear technologies.
The American OO scale, also known as "American O scale," is a model railway scale that represents a specific proportion of the real-world size of trains and structures. In OO scale, 1 inch on model equals 4 feet in real life, which corresponds to a scale ratio of 1:48. This is different from the more commonly known O scale, which has a scale ratio of 1:43.5 (using 0.
The number 240 is a composite integer that comes after 239 and before 241. It has several interesting mathematical properties: - **Factors**: The factors of 240 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, and 240.
Behavioral modeling in computer-aided design (CAD) refers to the approach of representing and simulating the behavior of a system or component rather than just its physical structure or geometry. This technique allows designers and engineers to understand how a system behaves under various conditions and scenarios, considering factors like forces, motion, thermal dynamics, and other physical phenomena.
The Blue Brain Project is a scientific research initiative aimed at creating a detailed, biologically accurate digital reconstruction of the brain. Launched in 2005 by the École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland, the project seeks to understand the intricate workings of the brain by simulating its components, particularly at the cellular and molecular levels.
Bond order potential (BOP) is a type of empirical interatomic potential used in molecular dynamics simulations and computational materials science to model the interactions between atoms in a material. The primary aim of bond order potentials is to describe the energy and forces between atoms based on their local environment, incorporating the concept of bond order, which quantifies how many bonds a particular atom forms with its neighbors.
WG (Wilson-Gill) cipher is a type of symmetric encryption algorithm used in cryptography. It was designed with a focus on providing a balance between security, efficiency, and ease of implementation. The WG cipher uses a block cipher approach, meaning it processes data in fixed-size blocks, typically 64 or 128 bits.
Ebrahim Mamdani does not appear to be a widely recognized public figure, term, or concept as of my last update in October 2023. It is possible that he could be a private individual or someone less publicly known.
PLaSM, which stands for "Programming Language for Synthesis of Meshes," is a programming language designed for generating and manipulating geometric shapes and meshes, particularly in the context of computer graphics and computational geometry. PLaSM enables users to define complex shapes and models in a relatively straightforward way, allowing for the creation of intricate designs that can be used in various applications, such as 3D printing, computer-aided design (CAD), and animation.
TI InterActive! is an interactive software application developed by Texas Instruments specifically designed for education, particularly in mathematics and science. It serves as a digital learning platform that provides various tools and resources for students and teachers. Key features of TI InterActive! include: 1. **Graphing and Visualization**: Users can create graphs of mathematical functions, making it easier to visualize concepts like calculus and algebra.
Building Lifecycle Management (BLM) is a holistic approach to managing the entire lifecycle of a building or infrastructure project, from conception and design through construction and operation to eventual decommissioning or renovation. BLM integrates various disciplines and technologies, such as building information modeling (BIM), project management, and facility management, to optimize building performance, enhance sustainability, and improve overall project outcomes.

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