Tolu balsam, also known as balsam of Tolu, is a fragrant resin obtained from the tree *Myroxylon balsamum*, which is native to Central and South America, particularly Colombia. The resin is collected by making incisions in the bark of the tree, allowing the sap to ooze out and harden into a sticky substance.
Resin is a sticky, flammable organic substance that is typically secreted by plants, especially trees. It is composed mainly of terpenes and other organic compounds. Resins are used by plants as a defense mechanism against injury and pathogens, as they can seal wounds and deter herbivores. In addition to its natural occurrence, resin has many industrial applications.
Orbital resonance occurs when two orbiting bodies exert regular, periodic gravitational influence on each other due to their orbital frequencies being related by a ratio of small integers. This situation can lead to significant effects on their orbits, including stabilization or destabilization, changes in orbital shape, and alterations in orbital inclination. In a simple example of orbital resonance, if one object completes two orbits in the same time that another object completes one orbit, they are said to be in a 2:1 resonance.
RDF (Resource Description Framework) data access refers to the methods and technologies used to retrieve, manipulate, and query data that is structured in the RDF format. RDF is a standard for representing information about resources on the web, using a graph-based model. It encodes data in triples, consisting of a subject, predicate, and object, which can represent relationships and attributes of resources.
A triplestore is a specialized database designed to store and manage data in the form of triples, which are the fundamental units of data in the Resource Description Framework (RDF). Each triple is composed of three components: 1. **Subject**: The entity being described (e.g., a person, place, or concept). 2. **Predicate**: The property or attribute of the subject (e.g., "hasAge", "isLocatedIn").
The Linked Data Platform (LDP) is a set of specifications and guidelines developed by the World Wide Web Consortium (W3C) aimed at enabling the use of Linked Data principles in building web-based applications. The core goal of LDP is to facilitate the management and interaction with linked data in a way that is consistent, robust, and interoperable across different systems.
In logic, substitution refers to the process of replacing a variable or a term in a logical formula with another term or expression. This is often done to simplify expressions, to prove theorems, or to demonstrate certain properties of logical systems. Here's a more detailed explanation: 1. **Variables and Terms**: In logical expressions, we often use variables (like \(x\) or \(y\)) and constants (like \(a\) or \(b\)).
In the context of the Semantic Web, a *metaclass* is a concept that pertains to the model of classes and types in knowledge representation frameworks, particularly in ontology languages such as OWL (Web Ontology Language) and RDF Schema (RDFS). ### Key Points about Metaclasses: 1. **Definition**: A metaclass is a class whose instances are classes themselves. This is analogous to how a class in object-oriented programming defines the structure and behavior of its instances.
RDF4J is an open-source Java framework designed for working with Resource Description Framework (RDF) data. It provides tools and APIs for managing RDF data and performing operations such as querying, updating, and reasoning over RDF datasets. RDF4J supports various RDF serialization formats like Turtle, RDF/XML, and N-Quad, allowing for easy integration and interchange of RDF data.
RDF, or the Resource Description Framework, is a standard model for data interchange on the web. It allows for the representation of information about resources in a structured way using triples, which consist of a subject, predicate, and object. RDF Query Language typically refers to SPARQL (SPARQL Protocol and RDF Query Language), which is the standard query language used to retrieve and manipulate data stored in RDF format.
Confluence, in the context of abstract rewriting systems, refers to a property of rewriting systems (such as term rewriting systems, lambda calculus, and various forms of programming languages) that guarantees the uniqueness of results. More specifically, a rewriting system is said to be confluent if, whenever there are two different ways to rewrite a term to produce two results, there is a way to further rewrite those results to a common successor.
Rewrite order refers to the sequence in which rewrite rules or transformations are applied in a rewriting system, such as in programming languages, formal grammars, or systems that involve symbolic computation. This concept is particularly important in contexts like: 1. **Compilers and Interpreters**: When optimizing code, the order in which different rewriting rules are applied can affect the final output and performance of the program.
Epizeuxis is a rhetorical device that involves the repetition of a word or phrase in immediate succession for emphasis. This technique is often used to create a dramatic effect, highlight a particular idea, or convey strong emotions. For example, in the phrase "Never, never, never give up," the repetition of "never" emphasizes the determination and urgency of the message. It's a form of repetition that can enhance the emotional impact of speech or writing.
The number 110 is a natural number that follows 109 and precedes 111. It can be expressed in various ways: 1. **Mathematically**: - It is an even number. - It is the sum of the prime numbers 53 and 57. - In Roman numerals, it is represented as CX. 2. **In Different Bases**: - In binary, 110 is written as 1101110.
Ploce is a rhetorical figure of speech that involves the repetition of a word or phrase for emphasis, often with different meanings or in different contexts. This technique is used to enhance the emotional impact of language and to create a more vivid or memorable expression. For example, in the phrase "The man of the hour, the man who has finally risen to the occasion," the repetition of "man" emphasizes his significance in both instances, even though the contexts differ slightly.
Protrepsis and paraenesis are terms that originate from ancient Greek philosophy, particularly associated with moral and ethical exhortation. 1. **Protrepsis**: This word can be translated as "encouragement" or "exhortation." In a philosophical context, protrepsis refers to the practice of urging people to adopt a certain way of life or to embrace philosophical wisdom.
"Sine dicendo" is a Latin phrase that translates to "without saying" or "without mentioning." It is often used in legal or formal contexts to indicate that something is implied or understood without being directly stated. The phrase can denote a concept or idea that is accepted as a given, without the need for explicit articulation.
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!
Intro to OurBigBook
. Source. We have two killer features:
- 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-calculusArticles 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/derivativeVideo 2. OurBigBook Web topics demo. Source. - 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.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
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. - Infinitely deep tables of contents:
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





