Stereoselectivity refers to the preference of a chemical reaction to produce one stereoisomer over another when multiple stereoisomers are possible. Stereoisomers are molecules that have the same molecular formula and connectivity of atoms but differ in the three-dimensional arrangement of those atoms in space.
The USNS Sampan Hitch (T-AKR-314) is a vehicle cargo ship that is part of the United States Navy's Military Sealift Command. It is designed to transport military equipment, vehicles, and supplies, primarily to support U.S. military operations. Like other ships in the Navy's roll-on/roll-off (RORO) fleet, the Sampan Hitch is equipped to carry a variety of wheeled and tracked vehicles, ensuring rapid transport and deployment as required by military logistics.
Frenchelon is a term used to describe the French government's electronic surveillance program, which is part of its broader national security and intelligence efforts. It involves the monitoring and collection of communications data, including phone calls, emails, and internet activity, both domestically and from foreign sources. Frenchelon is similar in concept to other national surveillance programs like the NSA's activities in the United States, particularly in the context of counter-terrorism and intelligence gathering.
A minot is a non-SI unit of measure used to quantify luminous flux. Specifically, it is defined as the luminous flux emitted in a solid angle of one steradian by a point source that has a luminous intensity of one candela. In practical terms, one minot is equal to one lumen per steradian (1 minot = 1 lumen/sr). This unit is not commonly used in modern lighting science, where the lumen and candela are more prevalent.
General Electric (GE) is a multinational conglomerate headquartered in Boston, Massachusetts. Founded in 1892 through the merger of Edison General Electric Company and Thomson-Houston Electric Company, GE has a long history in various sectors, including energy, healthcare, aviation, and manufacturing. The company operates through several business segments: 1. **Aviation**: GE Aviation manufactures jet engines and provides related services. It's one of the world's largest suppliers of jet engines for commercial and military aircraft.
Béla Juhos is a Hungarian name, and it might refer to various individuals depending on the context, such as a historical figure, artist, or contemporary person. However, as of my last update in October 2023, there is no widely recognized or prominent individual by that name in popular culture, politics, or academia. If you have a specific context or field in mind (e.g.
Carrie Everson is a professional known for her work in the field of marketing and advertising, particularly in leadership roles within major companies. As of my last knowledge update in October 2021, she was recognized for her contributions to brand strategy and growth, previously holding significant positions at companies like Nielsen and leading marketing initiatives in various industries.
A signed measure is a generalization of the concept of a measure, which is a mathematical tool used to assign a size or volume to subsets of a given space, particularly in the context of measure theory. While a traditional measure assigns a non-negative value to subsets, a signed measure allows for the assignment of both positive and negative values.
Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) is a scientific instrument developed for the study of Mars, primarily onboard NASA's Perseverance rover, which was launched in July 2020 and landed on Mars in February 2021. SHERLOC's primary goal is to identify and characterize organic compounds and potential biosignatures—signs of past or present life—within Martian surface materials.
Iconicity refers to the relationship between a sign and its meaning, specifically how closely a sign resembles or represents what it denotes. This concept is often discussed in the fields of semiotics (the study of signs and symbols) and linguistics. In a broader sense, iconicity can be categorized into three types: 1. **Iconic Signs**: These are signs that physically resemble their referents or have a direct connection to what they represent.
Julia Hsu could refer to various individuals, but there is no widely recognized public figure by that name as of my last update in October 2023.
The Coriolis-Stokes force refers to the combined effects of the Coriolis force and the Stokes drag force in fluid dynamics. This force is particularly relevant in the study of geophysical flows, such as ocean currents and atmospheric movements, where both Earth's rotation and viscous forces play significant roles. 1. **Coriolis Force**: This is an inertial force described mathematically by the Coriolis effect, which arises from the rotation of the Earth.
Emil Wiechert (1861–1928) was a German geophysicist and seismologist best known for his contributions to the understanding of the Earth's internal structure. He is particularly recognized for developing the Wiechert Earth model, which was influential in the study of seismic waves and the Earth's layers. Wiechert's work helped lay the foundation for modern seismology and our understanding of earthquakes and the behavior of seismic waves as they travel through the Earth's interior.
Quickselect is an efficient algorithm used to find the k-th smallest (or largest) element in an unordered list. It is related to the Quicksort sorting algorithm and uses a similar partitioning approach.
The Dwork conjecture is a hypothesis in the field of arithmetic algebraic geometry, particularly concerning the interplay between p-adic analysis and the theory of algebraic varieties. It was proposed by the mathematician Bernard Dwork in the context of understanding the zeta function of a family of algebraic varieties over finite fields.
An "undervote" refers to a situation in an election where a voter does not select a candidate for a particular office on the ballot, even though they have cast a vote for other races or issues. This can occur for various reasons, such as a lack of preference for any of the candidates, confusion about the ballot, or overlooking that specific section of the ballot altogether. Undervotes can be significant in elections, as they may affect the outcome, particularly in close races.
The term "ideal surface" can refer to several concepts depending on the context in which it is used. Here are a few common interpretations: 1. **In Physics and Engineering**: - An ideal surface can refer to a theoretical surface that has no imperfections, roughness, or other irregularities. In the context of fluid dynamics, for instance, an ideal surface may be one that allows for perfect laminar flow without turbulence.
A **locally constant function** is a type of function that is constant within a localized region of its domain.
Tsume shogi is a type of puzzle in shogi (Japanese chess) that focuses on finding a sequence of moves leading to checkmate. In tsume shogi, the problem typically presents a scenario where one player, the "shiro" (white) or "kuro" (black), must deliver checkmate in a specified number of moves, regardless of the opponent's responses. The puzzles vary in complexity and can involve different pieces and arrangements on the board.
Baseband refers to a communication method where the original signal is transmitted over a medium without modulation onto a carrier frequency. In simpler terms, baseband signals are the original signals that utilize the entire bandwidth of the communication medium to carry information. Baseband can apply to various contexts, including: 1. **Data Transmission**: In networking, baseband transmission means that the entire bandwidth of the medium (like a coaxial cable or twisted pair cable) is used for a single communication channel.

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