A signed network is a type of graph in which the edges (or links) between nodes (or vertices) can have positive or negative weights. These weights reflect different types of relationships or interactions between the nodes, where positive weights might represent friendly or supportive interactions, while negative weights could indicate hostile or adversarial relationships. Signed networks are used in various fields such as sociology, biology, and information science to analyze and model complex systems that involve both positive and negative relationships.
The synovial membrane, also known as synovium, is a specialized connective tissue that lines the cavities of synovial joints, such as the knees, elbows, and hips. Its primary function is to produce synovial fluid, a viscous fluid that lubricates the joint, reduces friction between the articular cartilages of the bones, and nourishes the cartilage.
The term "1957 software" typically refers to a programming language called **FORTRAN**, which was first developed in 1957 by IBM for scientific and engineering calculations. The name "FORTRAN" stands for "Formula Translation." It is considered one of the oldest high-level programming languages and was designed to provide a way for scientists and engineers to write programs that would be more efficient and easier to read compared to assembly language or machine code.
"2002 software" typically refers to software that was released or popularized in the year 2002. This could include a wide range of applications across different categories such as productivity, gaming, operating systems, or development tools. Some notable software released around that time includes: 1. **Microsoft Office 2003**: Although officially released in late 2003, development and previews were ongoing in 2002.
System migration refers to the process of transferring data, applications, and other enterprise functions from one environment to another. This can involve moving from one system to another, upgrading a system, or transitioning to a cloud-based platform. The goal of system migration is often to improve efficiency, enhance performance, or leverage new technologies.
The 1988 Lubbock apparition of Mary refers to an event reported in Lubbock, Texas, where several individuals claimed to have witnessed an apparition of the Virgin Mary. This event garnered attention from local media and the Catholic community, as similar apparitions have historically held significant implications for those who believe in them. The Lubbock apparition reportedly occurred in 1988 when multiple witnesses claimed to see the image of the Virgin Mary on the side of a building near a local Catholic church.
Zune software was developed by Microsoft as a media player and management tool for the Zune line of portable media players. Its development involved several versions over the years. Here’s a brief overview of the version history for Zune software: 1. **Zune Software 1.0** (November 2006) - Initial release to support the Zune media player. 2. **Zune Software 2.
A solar flare is a sudden, intense burst of radiation from the sun's surface, typically associated with the release of magnetic energy stored in the sun’s atmosphere. These events occur in active regions, often near sunspots, and can release a wide spectrum of electromagnetic radiation, including radio waves, visible light, ultraviolet light, and X-rays. Solar flares are caused by the complex interplay of magnetic fields in the sun.
Sound production refers to the process by which sound is generated and manipulated. This can occur in various contexts, including music, acoustics, and audio engineering, and involves a range of techniques and technologies. Here are some key aspects of sound production: 1. **Basic Principles**: Sound is produced through vibrations, which create pressure waves in a medium, usually air. These vibrations can come from various sources, such as musical instruments, human voices, or other objects.
"Wild Track" can refer to a variety of concepts depending on the context. Here are a few possibilities: 1. **WildTrack**: A specific term related to wildlife tracking technology that involves using footprints and other signs to monitor animal movements. It is often associated with conservation efforts and the use of sensor technology to gather data on wildlife.
As of my last knowledge update in October 2023, there is no widely recognized figure by the name of Daniel Makinde in popular news, literature, or history. It's possible that he could be a person of local significance, emerging public figure, or a private individual.
Vasilevo Municipality is a local administrative unit in North Macedonia. It is located in the southeastern part of the country and is part of the broader statistical region known as the Vardar Region. The municipality has a mix of rural and urban areas, with the town of Vasilevo serving as its administrative center. Like many municipalities in North Macedonia, Vasilevo is known for its agricultural activities, local traditions, and cultural heritage. It typically includes several smaller villages and communities within its jurisdiction.
MIR-2, or the "Missile Impact Rating - 2," generally refers to a designation related to missile defense systems, military technologies, or specific projects within defense research. However, without additional context, it's difficult to provide a precise definition, as "MIR-2" could refer to different things in various fields, including aerospace, military, or other technical areas.
Georgy Adelson-Velsky (also known as Georgy Mikhailovich Adelson-Velsky) is a notable figure in the field of computer science, particularly known for his work in the area of data structures and algorithms. He is perhaps best known for co-developing the AVL tree, which is a type of self-balancing binary search tree that ensures the tree remains balanced after insertions and deletions.
Nikolay Konstantinov could refer to various individuals depending on the context, as it is a somewhat common name in Eastern Europe, particularly in Russia. However, without more specific context, it’s difficult to pinpoint which Nikolay Konstantinov you might be referring to. There might be notable figures in various fields such as academia, sports, or the arts who bear that name.
Soviet nuclear physicists were scientists in the Soviet Union who specialized in the study of nuclear physics, which encompasses the behavior and properties of atomic nuclei. This field includes research on nuclear reactions, atomic structure, and the interactions of nuclear particles. During the Soviet era, particularly in the mid-20th century, the USSR made significant advancements in nuclear physics, leading to the development of nuclear energy and weapons.
Gurgen Askaryan is primarily known as a prominent Soviet physicist and a significant figure in the field of particle physics and astrophysics. He made notable contributions to the study of cosmic rays and the development of various detection techniques. One of his key contributions is the Askaryan effect, which refers to the emission of coherent radiation from high-energy particles as they pass through a dense medium, such as ice or salt, at speeds exceeding the speed of light in that medium.
Pavel Cherenkov is a physicist best known for his discovery of Cherenkov radiation, a phenomenon observed when a charged particle, such as an electron, moves through a dielectric medium at a speed greater than the phase velocity of light in that medium. This discovery is significant in the field of particle physics and has applications in various areas, including astrophysics and nuclear physics.
Vladimir Braginsky is a notable figure in the field of theoretical physics, particularly known for his contributions to quantum mechanics and quantum information theory. He has conducted research on topics such as quantum measurement, decoherence, and the foundations of quantum theory. Braginsky's work has implications in areas like gravitational wave detection and quantum optics. His research has influenced both theoretical frameworks and experimental techniques in modern physics.
A **tree spanner** is a concept in graph theory that involves spanning trees of a given graph. Specifically, a tree spanner of a connected graph \( G \) is a spanning tree \( T \) such that the distance between any two vertices in \( T \) is at most \( K \) times the distance between those vertices in \( G \). Here, \( K \) is a positive integer known as the stretch factor.

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