Giraffes are tall, long-necked mammals native to Africa, most commonly found in savannas and open woodlands. They are easily recognizable due to their distinctive patterns of spots and their elongated necks, which allow them to reach high leaves on trees. Giraffes are the tallest land mammals, with adult males typically reaching heights of 18 feet (5.5 meters) or more.
Barbara McClintock (1902–1992) was an American scientist and geneticist who is best known for her groundbreaking work in the field of genetics, particularly in maize (corn). She was awarded the Nobel Prize in Physiology or Medicine in 1983 for her discovery of "jumping genes," or transposable elements. McClintock's research demonstrated that genes could change positions on chromosomes and that this could affect the expression of traits in organisms.
Heiko Enderling is a prominent figure in the field of mathematical biology, particularly known for his work on evolutionary dynamics, cancer modeling, and mathematical modeling in biology. He is affiliated with institutions that focus on research and education in these areas, contributing to our understanding of complex biological systems through mathematical frameworks.
The Drift-barrier hypothesis is a concept in evolutionary biology that seeks to explain the maintenance of genetic diversity within populations. Proposed by Theodosius Dobzhansky and others, it suggests that genetic drift can play a significant role in shaping the genetic structure of populations, particularly in small, fragmented populations.
Stochastic Differential Equations (SDEs) are equations that involve stochastic processes, which means they incorporate randomness or noise into their formulation. SDEs are used to model systems that are influenced by random effects, making them particularly useful in fields such as finance, physics, biology, and engineering. ### Key Components of SDEs: 1. **Differential Equation**: Like ordinary differential equations (ODEs), SDEs describe how a variable evolves over time.
Quantum stochastic calculus is a mathematical framework that extends classical stochastic calculus to the setting of quantum mechanics and quantum probability. It provides tools to analyze and model systems that are influenced by both quantum mechanical effects and random processes. The theory is particularly relevant for studying quantum systems that are subject to noise, such as in quantum optics, quantum filtering, and the theory of open quantum systems.
ATLAS Transformation Language (ATL) is a model transformation language designed for manipulating models within the context of Model-Driven Engineering (MDE). It is part of the ATLAS project, which is a set of open-source tools and frameworks for MDE developed at the École des Mines d'Alès in France. ### Key Features of ATL: 1. **Model Transformation**: ATL is specifically designed to define transformations between different models.
Executable UML (xUML) is a variant of the Unified Modeling Language (UML) that focuses on creating models that can be directly executed or simulated to validate their behavior and functionality. Unlike traditional UML, which is primarily used for modeling and documentation, Executable UML provides a foundation for generating code or executing models in potentially real-time systems.
The Meta-Object Facility (MOF) is a standard defined by the Object Management Group (OMG) that provides a framework for modeling and managing metadata in an object-oriented manner. MOF serves as a meta-level framework for defining and manipulating the models themselves, which can describe software systems, data models, or other types of systems.
In UML (Unified Modeling Language), a **Node** is a fundamental building block used in the context of modeling physical or virtual resources that represent a computational resource in a system. Nodes can be thought of as the hardware or software resources needed to execute or host system components. ### Key Characteristics of Node in UML: 1. **Representation**: A node is represented as a three-dimensional box in UML diagrams. This visual representation helps to distinguish nodes from other elements in the model.
Object Modeling in Color (OMiC) is a visual modeling technique used in software development and system design that combines the principles of object modeling with the use of color to enhance understanding and communication. The concept is often grounded in Unified Modeling Language (UML) principles but extends beyond traditional monochromatic diagrams by incorporating color as a means to convey additional information or to represent different aspects of the system. ### Key Features of Object Modeling in Color 1.
In the context of Unified Modeling Language (UML), a **Profile** is a mechanism used to extend UML by creating tailored modeling constructs suitable for specific domains or system requirements. Profiles provide a way to customize UML by adding new stereotypes, tagged values, and constraints, allowing modelers to define domain-specific elements while still adhering to the standard UML framework.
A UML (Unified Modeling Language) tool is a software application that supports the creation, visualization, and management of UML diagrams and models. UML itself is a standardized modeling language used primarily in software engineering to specify, visualize, construct, and document the artifacts of software systems. It encompasses various diagram types that serve different purposes, such as: 1. **Class Diagrams**: Show the structure of a system by depicting its classes, attributes, methods, and the relationships between classes.
Sensitivity analysis in the context of an EnergyPlus model refers to the process of evaluating how the output of the model responds to changes in its input parameters. EnergyPlus is a widely used building energy simulation software designed to model heating, cooling, lighting, ventilating, and other energy flows within buildings. ### Key Components of Sensitivity Analysis: 1. **Purpose**: - To identify which input variables have the most significant impact on the simulation results.
A Tornado diagram is a type of bar chart that is used in sensitivity analysis to visually display the impact of different variables on a specific outcome or metric. It is particularly useful in decision-making processes, project management, risk assessment, and financial forecasting. The name "Tornado diagram" comes from its shape, which resembles a tornado or a funnel. ### Key Features of a Tornado Diagram: 1. **Horizontal Bars**: The diagram displays horizontal bars that represent different variables or factors.
The Feynman checkerboard is a conceptual model used to visualize and understand certain aspects of quantum mechanics, specifically in the context of quantum field theory and the path integral formulation. Introduced by physicist Richard Feynman, the checkerboard model is a way to represent the quantum behavior of a particle in a two-dimensional lattice. In this model, the space-time continuum is represented as a checkerboard where the “squares” represent discrete time and space coordinates.
In the context of mathematics and theoretical physics, particularly in the fields of twistor theory and geometric analysis, a **local twistor** refers to an object or concept that is derived from the broader framework of twistor theory, as developed by Roger Penrose in the 1960s. Twistors provide a different way to analyze spacetime events and geometric structures, focusing on complex geometries rather than traditional real-number representations of space and time.
As of my last update in October 2023, "Tangloids" does not refer to any widely recognized concept, product, or term. It’s possible that it may be a term used in a niche context, a new product, a brand, or even a fictional concept that has emerged after my last knowledge update.
A palindrome is a word, phrase, number, or any other sequence of characters that reads the same forwards and backwards (ignoring spaces, punctuation, and capitalization). Examples of palindromic words include "racecar" and "level." Palindromic phrases could include "A man, a plan, a canal, Panama!" or "Madam, in Eden, I'm Adam." In numbers, an example of a palindrome is 12321.
Axial current is a concept from quantum field theory, particularly in the context of particle physics and gauge theories. It is associated with the transformation properties of fields under specific symmetries, especially related to chiral symmetries and their breaking. In more detail: 1. **Chiral Symmetry**: Axial currents arise in theories that exhibit chiral symmetry, which distinguishes between left-handed and right-handed particles or fields.

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