Real-time outbreak and disease surveillance refers to the systematic collection, analysis, and interpretation of health-related data in real time to monitor, detect, and respond to public health threats, particularly infectious disease outbreaks. This approach leverages technology and data analytics to provide timely information that can help public health officials make informed decisions, implement interventions, and allocate resources effectively.
An inverted pendulum is a classic problem in physics and engineering that involves a pendulum which is attached to a pivot point above its center of mass. This system is unstable because, unlike a regular pendulum that swings down into a stable equilibrium position, an inverted pendulum is in a natural unstable equilibrium when it is perfectly vertical. The dynamics of an inverted pendulum can be described using principles of mechanics.
The Fellows of the International Federation of Automatic Control (IFAC) is an honorary designation awarded to individuals who have made significant contributions to the field of automatic control and systems engineering. The fellowship recognizes outstanding achievements in research, education, and leadership within the automatic control community. Being named a Fellow of IFAC is a mark of professional excellence and is typically conferred upon individuals who have demonstrated a high level of leadership, innovation, and impact in their work.
Jan Maciejowski is a mathematician known for his contributions to control theory, particularly in the area of linear and nonlinear systems. He has worked on topics such as robust control, optimization, and the application of algebraic methods in control systems. Maciejowski is also known for his educational contributions, particularly through textbooks and courses that focus on advanced control techniques.
Kumpati S. Narendra is a prominent figure in the fields of electrical engineering and control systems. He is best known for his work in adaptive control, optimal control, and robotics. Narendra has made significant contributions to the development of algorithms and theory related to the control of dynamic systems, particularly methods for adaptive system identification and control. He has published extensively in scholarly journals and has authored several books on control theory and applications.
Paola Loreti is an Italian mathematician known for her work in various areas of mathematics, including functional analysis and mathematical logic. She has contributed to the fields of set theory, topology, and applications of mathematics in biology and other sciences.
Amusement rides are typically categorized by their themes to enhance the overall experience and atmosphere within a theme park or amusement area. Here are some common themes associated with amusement rides: 1. **Fantasy and Fairy Tales**: - Rides in this category often draw inspiration from classic stories and characters. Examples include carousel rides, dark rides based on fairy tales, or themed roller coasters.
Vending machines are automated machines that dispense a variety of products, typically snacks, beverages, and other convenience items, when a customer inserts money or uses a cashless payment method. These machines are commonly found in public places like schools, offices, airports, and shopping malls. Here's how vending machines generally work: 1. **Selection**: The customer views the available items through a display or transparent window, and selects a product by entering the corresponding code or pressing a button.
A **bicycle tree** refers to a specific type of graph theory concept where the structure resembles a bicycle. More formally, it is a connected graph containing exactly two cycles. The term derives from the way bicycles have two wheels, which can be visually analogous to the two cycles in this type of graph.
Transport lists can refer to various concepts depending on the context. Here are a few interpretations: 1. **Logistics and Supply Chain**: In logistics, a transport list may refer to a list that outlines the details of goods being transported. This can include information such as item descriptions, quantities, origin and destination addresses, shipping methods, and tracking information. These lists are used for managing and tracking the movement of goods in the supply chain.
Amber Road refers to an ancient trade route that connected the Baltic Sea with the Mediterranean Sea, facilitating the trade of amber, a valuable fossilized tree resin. This route was significant in antiquity, especially for various cultures that sought amber for its beauty and use in jewelry, ornaments, and other decorative items. The Amber Road connected various peoples and regions, including present-day countries like Poland, Germany, and Italy, among others.
Charentese amber, also known as "amber from Charente," refers to a specific type of amber that is found in the Charente region of southwestern France. This amber is known for its unique geological and historical characteristics, having formed from the resin of ancient coniferous trees millions of years ago. The Charente region's amber deposits are typically dated to the Cretaceous period, around 100 million years ago.
Lebanese amber refers to a type of amber that is found in Lebanon, specifically within the region known for its geological formations that date back to the Late Cretaceous period (approximately 100 million to 66 million years ago). This amber is fossilized tree resin, which is valued for its beauty and is often used in jewelry and ornamentation.
The Two-Higgs-Doublet Model (2HDM) is an extension of the Standard Model of particle physics that incorporates two Higgs doublets instead of just one. In the Standard Model, a single Higgs doublet is responsible for the electroweak symmetry breaking mechanism, which gives mass to the W and Z gauge bosons and fermions.
Kaluza-Klein theory is a theoretical framework that attempts to unify gravity and electromagnetism by extending the concept of spacetime to include extra dimensions. It originated from the work of Theodor Kaluza and Oskar Klein in the early 20th century. The key idea is as follows: 1. **Extra Dimensions**: Kaluza proposed that, in addition to the familiar three spatial dimensions and one time dimension, there exists a fifth dimension.
Mass generation, in the context of particle physics, typically refers to the mechanisms through which particles acquire mass. One of the most well-known frameworks for understanding mass generation is the Higgs mechanism, which is a key component of the Standard Model of particle physics. Here's a brief overview of the key concepts: 1. **Higgs Field**: According to the Standard Model, there exists a scalar field called the Higgs field that permeates all of space.
Split supersymmetry is a theoretical framework in particle physics that modifies traditional supersymmetry (SUSY) by relaxing some of its constraints. In the context of high-energy physics, supersymmetry is a proposed extension of the Standard Model that posits a symmetry between fermions (particles that make up matter) and bosons (force carrier particles).
Nullarbor Links is a unique golf course located along the Eyre Highway in Australia, stretching between Ceduna in South Australia and Kalgoorlie in Western Australia. It is recognized as the world's longest golf course, measuring approximately 1,365 kilometers (848 miles) from the first hole to the last. The course comprises 18 holes, each situated in different towns and features different terrains and landscapes.
Tegu is a toy company known for its innovative wooden building blocks that incorporate magnets. Founded in 2006 by brothers Jake and Chris Hengtgen in Tegucigalpa, Honduras, the company emphasizes the use of sustainable and eco-friendly materials, specifically from certified forests. Tegu blocks come in various shapes and sizes, allowing children to create a wide range of structures while encouraging creativity, problem-solving, and imaginative play.
The term "unit block" can refer to different concepts depending on the context. Here are a couple of common interpretations: 1. **Mathematics**: In mathematics, particularly in number theory or algebra, a unit block could refer to a unit structure in a particular set or category.

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