Publish and Subscribe (Pub/Sub) is a messaging pattern that allows different components of a system to communicate with one another in a decoupled manner. This pattern is widely used in various software architectures, including those within macOS applications. ### How Pub/Sub Works 1. **Publisher**: This component sends messages (events or data) but does not need to know about the subscribers that receive these messages.
Logo is a programming language that was designed in the 1960s primarily for educational purposes and is known for its use in teaching concepts of programming and mathematics to children. One of the most distinctive features of Logo is its turtle graphics system, which allows users to control a "turtle" that moves around the screen, drawing shapes and patterns as it goes. The language is based on the concept of simple commands that can be combined to create more complex programs.
The term "Homiliarium" generally refers to a collection of homilies, which are formal sermons or discourses delivered by clergy, typically in a Christian context. These collections can serve as resources for preaching and teaching, offering insights into Scripture and moral lessons. Historically, homiliaria have been significant in various Christian traditions, including the Catholic Church, where they might provide guidance on liturgical readings or themes for specific days.
Finite-valued logic is a type of logical system in which propositions can take on a finite number of truth values, rather than just the traditional two values found in classical binary logic (true and false). While classical logic operates under a binary scheme (true = 1, false = 0), finite-valued logics extend this idea by allowing multiple truth values. In finite-valued logic, truth values can be, for example, {0, 1, 2, ...
MAXEkSAT (Maximum Excluded K-Satisfiability) is a variant of the Boolean satisfiability problem (SAT) in which the goal is to identify the maximum number of clauses that can be made true by assigning truth values to a set of boolean variables, while ignoring a specified number of clauses. This is typically formulated as a decision problem or an optimization problem, where the objective is to maximize the number of satisfied clauses subject to some constraints.
Ancient Mithila University refers to a historical and cultural context rather than a single institution as we understand universities today. Mithila is a region located in the northern part of India and parts of Nepal, known for its rich cultural heritage, particularly in arts, literature, and education. The term "Mithila University" could be associated with the traditional centers of learning that existed in this region, particularly during ancient and medieval times.
"Trinity Homilies" refers to a collection of sermons or homilies delivered by religious figures, typically focused on themes related to the Holy TrinityGod as Father, Son, and Holy Spirit. These homilies might be part of Christian liturgical practices or celebrations, especially during Trinity Sunday, which occurs in many Christian denominations.
The human rights record of the United States is complex and multifaceted, reflecting both its foundational principles and the challenges it faces in practice. Here are several key areas often highlighted in discussions about U.S. human rights: 1. **Civil Rights and Liberties**: The U.S. Constitution guarantees certain fundamental rights, such as freedom of speech, assembly, and religion.
"Munafiq" (or "munafik") is an Arabic term that translates to "hypocrite" in English. In Islamic theology, it refers to a person who outwardly professes faith and righteousness but secretly disbelieves or acts contrary to the teachings of Islam.
"The Mote and the Beam" is a phrase derived from a biblical passage in the Gospel of Matthew, specifically Matthew 7:3-5. The verse uses the metaphor of a mote, or a speck, and a beam, or a plank, to illustrate the concept of hypocrisy in judgment. The passage encourages individuals to examine their own faults before criticizing others for their shortcomings.
Narrative refers to the structured account of a series of events or experiences, often presented in a storytelling format. It encompasses the way in which a story is told, including the elements of plot, character, setting, conflict, and resolution. Narratives can be found in various forms, including literature, oral traditions, film, and even everyday conversational storytelling.
Citizens United v. Federal Election Commission (FEC) is a landmark Supreme Court case decided in 2010 that significantly changed the landscape of campaign finance in the United States. The case arose from a dispute regarding the application of campaign finance laws to a documentary film produced by the nonprofit organization Citizens United, which criticized then-Senator Hillary Clinton during the 2008 presidential election.
The Book of Muhammad's Ladder, also known as "The Ladder of Muhammad" or "Mi'raj" in Arabic, refers to a significant event in Islamic tradition that describes the night journey (Isra) and ascension (Mi'raj) of the Prophet Muhammad. This journey is believed to have occurred in the year 620 CE and holds great religious importance for Muslims.
"Hibil" does not appear to be a widely recognized term or concept as of my last knowledge update in October 2023. It might refer to a specific product, brand, name, or concept that emerged after that date, or it could be a niche term in a particular field.
Mullah Nasr al-Din, often simply referred to as Nasreddin or Mullah Nasruddin, is a popular figure in Middle Eastern and Central Asian folklore. He is typically depicted as a wise fool or a trickster, known for his humorous and insightful stories that often convey moral lessons. The character is often portrayed as a simple man with a profound wisdom, using wit and cleverness to navigate life’s challenges.
"Taboo" refers to a social or cultural prohibition against certain behaviors, practices, or discussions considered unacceptable or forbidden within a particular society or group. The concept of taboos can apply to a wide range of areas, including religion, sexuality, morality, food, and other aspects of life. Taboos often arise from deeply held cultural beliefs and values and can evoke strong reactions when violated.
Distributed concurrency control (DCC) is a set of techniques and protocols used in distributed systems to manage access to shared resources while ensuring data integrity and consistency. In a distributed environment, multiple nodes or processes may attempt to read from or write to shared data concurrently. This can lead to conflicts, inconsistencies, and violations of integrity constraints if not properly managed.
Superstabilization is a term often used in the context of control theory, particularly in the stabilization of systems that exhibit dynamic behavior. It refers to techniques or methods that aim to not just stabilize a system at a desired equilibrium point, but to provide enhanced stability beyond standard stabilization techniques. This can involve ensuring that the system remains stable under a wide range of conditions, including taking into account uncertainties, disturbances, or changes in system parameters.
Richard Karp’s seminal 1972 paper, "Reducibility Among Combinatorial Problems," identified 21 specific problems that are NP-complete, which means they are among the most challenging problems in computational complexity theory. Below is a list of these 21 problems: 1. **Clique Problem**: Given a graph \( G \) and an integer \( k \), is there a complete subgraph (clique) of size \( k \)?
Nurikabe is a logic-based puzzle that originated in Japan. The name "Nurikabe" translates to "painted wall" in English. It involves filling a grid with "walls" represented by cells, following specific rules to create an interesting path or area. ### Rules of Nurikabe: 1. **Grid Structure**: The puzzle is played on a rectangular grid. Some cells contain numbers, which indicate how many contiguous cells are part of a "region" or island.

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