"Delisted applications" typically refer to applications (apps) that have been removed or deleted from an app store or marketplace, such as the Apple App Store or Google Play Store. There are several reasons why an application might be delisted: 1. **Policy Violations**: The app may have violated the app store's policies, terms of service, or guidelines. This could include issues related to content, security, user privacy, or user experience.

An **optical black hole** is a concept in the field of optics and experimental physics that refers to a medium or structure that can mimic the behavior of a gravitational black hole using light. Just as a gravitational black hole affects nearby matter and light through its immense gravitational pull, an optical black hole manipulates light in such a way that it creates an "event horizon," beyond which light cannot escape.

A ring singularity is a type of singularity that arises in certain solutions to the equations of general relativity, particularly in the context of rotating black holes, such as the Kerr black hole. Unlike a point singularity, which is a singularity that is concentrated at a single point (as found in a non-rotating, spherical black hole), a ring singularity is shaped like a ring or a torus.

The Thorne–Hawking–Preskill bet was a famous wager made in 1997 between three prominent physicists: Kip Thorne, Stephen Hawking, and John Preskill. The bet revolved around the nature of black holes and the information paradox, which questions whether information that falls into a black hole is lost forever or can be recovered. In essence, the bet was about whether information that falls into a black hole is truly irretrievable.

Spaghettification is a term used in astrophysics to describe the process by which objects are stretched and elongated due to extreme gravitational forces, particularly in the vicinity of a black hole. This phenomenon occurs because of the strong gravitational gradient present in such regions, meaning that the gravitational pull on an object (or a person) is significantly stronger at one end than at the other, especially as one gets closer to the black hole.

"A Mathematician's Apology" is a book written by the British mathematician G.H. Hardy, published in 1940. The work is a reflection on the aesthetics and philosophy of mathematics, as well as Hardy's thoughts on the nature of mathematical proof and creativity. In the book, Hardy famously defends pure mathematics, emphasizing its beauty and intellectual rigor, while contrasting it with applied mathematics, which he viewed as less elegant.

"Christmas tree" files refer to a specific way of organizing and displaying information in certain types of files, particularly in programming or configuration contexts. The term is often used to describe files that have a hierarchical structure resembling the shape of a Christmas tree, where there are multiple branches or levels of categories. The most common application of this term relates to source code repositories or configuration files in software development.

Beall's List is a controversial resource that compiles a list of "predatory" open access journals and publishers. Originally created by Jeffrey Beall, a librarian and scholar, the list was intended to help researchers identify journals that may not adhere to acceptable academic publishing standards. The term "predatory" refers to journals that exploit the author-pays model without providing proper editorial services, peer review, or other scholarly norms.

"Blacklisted by History" is a book written by M. Stanton Evans, published in 2007. The book primarily focuses on the history and legacy of the anti-communist figure Whittaker Chambers and the infamous Alger Hiss case, which was a significant political scandal in the United States during the early Cold War period.

Deplatforming refers to the act of removing or banning an individual, group, or organization from a platform, typically in the context of social media, online forums, or other digital spaces. This action is often taken by platform providers in response to behavior or content that is deemed to violate their terms of service, community guidelines, or laws.

The list of banned video games varies by country and can change over time due to evolving laws, social standards, and cultural sensitivities. Here are several notable examples of countries and some of the games that have been banned: ### United States - **Grand Theft Auto: San Andreas** - Controversies over violence and sexual content led to significant scrutiny. - **Manhunt 2** - Banned due to extreme violence and graphic content.

A software blacklist is a security mechanism that involves creating a list of software applications, files, or entities that are deemed untrustworthy or malicious. Any software or file on this list is typically blocked from execution or installation on a system or network. Blacklists are commonly used in cybersecurity to protect systems from harmful software, such as viruses, malware, or unauthorized applications.

Epoxydocosapentaenoic acid (EDP) is a type of specialized pro-resolving mediator, which are bioactive lipid molecules derived from omega-3 fatty acids. Specifically, EDP is formed from docosapentaenoic acid (DPA), which is an omega-3 fatty acid. EDP plays a role in the resolution of inflammation and is involved in various physiological processes, including immune responses and tissue repair.

Mean arterial pressure (MAP) is a useful measure in medicine that represents the average blood pressure in a person's arteries during one cardiac cycle. It is an important indicator of perfusion—the ability of blood to flow to organs and tissues—since it provides a more accurate reflection of blood flow than systolic blood pressure alone, especially in conditions where blood pressure can fluctuate significantly.

Plasma renin activity (PRA) is a laboratory measurement that assesses the activity of the enzyme renin in the bloodstream. Renin plays a crucial role in the regulation of blood pressure and fluid balance in the body. It is produced by the juxtaglomerular cells of the kidneys in response to various stimuli, such as low blood pressure, low sodium concentration, or sympathetic nervous system activation.

An implication graph is a directed graph that is used to represent implications among variables in propositional logic, particularly in the context of solving satisfiability problems (SAT). The nodes of the graph typically represent literals (both positive and negative forms of variables), and the edges indicate implications between these literals. ### Structure: 1. **Nodes**: Each node corresponds to a literal.

In the context of cryptology, a "card catalog" refers to a systematic collection of cryptographic keys, ciphers, or codes that are cataloged for easy retrieval and use. This term could encompass a variety of practices or tools used by cryptographers or individuals working in the field of information security to keep track of different cryptographic elements. The concept can also be tied to historical methods of organizing cryptographic information, akin to how traditional card catalogs in libraries organized books and resources for easy access.

The term "Code-talker paradox" does not refer to a well-documented concept in widely accepted theories, literature, or science. It may confuse with notions from communication theory, military history—particularly the use of Native American code talkers during World War II—or philosophical discussions about languages, codes, or meanings.

Cryptanalysis of the Lorenz cipher refers to the techniques and methods used to break the Lorenz cipher, which was employed by the German military during World War II for secure communication. The Lorenz cipher, also known as the Lorenz SZ40, was a complex mechanical cipher machine that utilized a system of rotating wheels to encrypt messages.

SMS Magdeburg was a light cruiser of the Imperial German Navy, launched in the early 1910s. She was part of the "Magdeburg" class and was named after the city of Magdeburg in Germany. The ship played a role in naval operations during World War I. One notable event involving SMS Magdeburg occurred in 1914 when she was stranded on a sandbank near the coast of Estonia.