Sabin Manuilă is a notable figure in the field of statistics and demographics, particularly associated with Romania. He is widely recognized for his contributions to social statistics, statistical methodology, and the organization of census data. Manuilă's work has had a significant impact on the development of demographic research and statistical education in Romania.
In the context of semiclassical gravity, a "black star" refers to a theoretical object that combines features of black holes and more exotic matter configurations. Unlike traditional black holes, which are defined by their event horizons and singularities, black stars do not necessarily possess an event horizon, though they may still exhibit gravitational effects similar to those of black holes.
The Blandford–Znajek process is a theoretical mechanism that describes how rotating black holes can extract energy from their environment, particularly from a magnetic field. It was proposed by Robert Blandford and Roman Znajek in a seminal paper published in 1977. The process is significant in astrophysics, especially in explaining how some astrophysical jets are powered from the vicinity of black holes, such as those observed in active galactic nuclei and gamma-ray bursts.
As of my last knowledge update in October 2023, "Blitzar" does not refer to any widely recognized concept, product, or service across popular fields such as technology, entertainment, or other industries. It is possible that it may be a new technology, company, app, or cultural reference that emerged after my last update.
A Magnetospheric Eternally Collapsing Object (MECO) is a theoretical concept in astrophysics proposed to explain certain astronomical phenomena, particularly in relation to black holes and neutron stars. The idea was put forward by physicists like Robert P. Kirshner and others, suggesting that a MECO could be a type of object that does not form a conventional event horizon like a black hole but instead possesses a strong magnetic field that influences its structure and behavior.
The membrane paradigm is a conceptual framework used in the study of black holes, particularly within the context of general relativity and theoretical physics. It provides a way to understand the properties and behaviors of black holes by modeling them as "membranes" with specific physical characteristics, rather than focusing solely on their complex gravitational fields.
Spin-flip is a physical process in quantum mechanics and condensed matter physics where the spin state of a particle is reversed or flipped. Spin is an intrinsic form of angular momentum carried by elementary particles, composite particles (hadrons), and atomic nuclei. It is a key property that influences the magnetic and quantum characteristics of a particle.
Vladimir Batagelj is a noted Slovenian statistician and mathematician, particularly recognized for his work in the fields of graph theory and network analysis. He has contributed to the development of various mathematical methods and techniques, and he is also known for his involvement in software development for social network analysis. Batagelj is associated with the University of Ljubljana and has published numerous research papers in his areas of expertise.
Cabell's Predatory Reports is a resource developed by Cabell Publishing, designed to help researchers, academics, and institutions identify and avoid predatory journals and publishers. Predatory journals typically engage in questionable practices, such as charging authors high fees without providing editorial or publishing services that are up to the standards of reputable academic publishing. Cabell's Predatory Reports offers a curated database that assesses the legitimacy of various journals based on criteria like peer review processes, editorial board transparency, and publication ethics.
The Eight Mile-Wyoming area refers to a neighborhood in Detroit, Michigan, particularly around the intersection of Eight Mile Road and Wyoming Avenue. This area is known for its historical significance, cultural diversity, and challenges related to urban development and socioeconomic issues. Eight Mile Road serves as a notable boundary between the city of Detroit and its northern suburbs and has been a cultural reference point in discussions about race and economic conditions in the region.
"Persona non grata" is a Latin term that translates to "an unwelcome person." In diplomatic contexts, it refers to a foreign diplomat or official whose presence is no longer accepted in a host country. This status can be assigned for various reasons, including alleged misconduct, political disagreements, or diplomatic disputes. When someone is declared persona non grata, they are typically asked to leave the country and may be barred from returning.
Andrej Mrvar is a well-known figure in the field of social network analysis and statistical modeling. He is particularly recognized for his contributions to the development of software for network analysis, including the R package "statnet," which is used for the statistical analysis of social networks. Additionally, he has co-authored various research papers and articles on topics related to network theory, social systems, and statistical methods.
Korotkoff sounds are the sounds that healthcare professionals listen for when measuring blood pressure using a sphygmomanometer and a stethoscope. They are named after Russian physician Nikolai Korotkoff, who first described them in 1905. When blood pressure is measured, a cuff is inflated around the arm, stopping blood flow in the artery.
Blockmodeling is a technique used in social network analysis and graph theory to study the structure of networks by identifying groups of nodes (or actors) that have similar patterns of connections (or relations) to each other. It is particularly useful for analyzing complex networks and understanding the underlying structures that govern interactions. When it comes to linked networks, which often refer to networks with multiple types or layers of relationships (e.g.
The baroreflex, also known as the baroreceptor reflex, is a fundamental physiological mechanism that helps regulate blood pressure in the body. It operates through a feedback loop involving baroreceptors, which are specialized sensory nerve endings located mainly in the walls of the carotid arteries (in the neck) and the aorta (the largest artery in the body).
The Blood Pressure Association (BPA) is typically a nonprofit organization focused on raising awareness, education, and research related to blood pressure and hypertension. Such associations generally work to inform the public about the importance of blood pressure management, provide resources for both patients and healthcare professionals, and promote healthy lifestyle choices that can help prevent and manage high blood pressure. They often engage in activities like public health campaigns, producing educational materials, and advocating for policies that support cardiovascular health.
International blood pressure guidelines are developed by various organizations to provide recommendations on the diagnosis, treatment, and management of hypertension. While the core concept of diagnosing and treating high blood pressure remains consistent, differences may exist in the thresholds for diagnosis, recommended treatment approaches, and management strategies. Here’s a comparison of some of the major international guidelines for hypertension management: ### 1.
A sphygmograph is an instrument used to measure and record the pulse or heartbeat of an individual. It typically consists of a device that detects changes in blood pressure as the heart beats, translating these changes into a visual representation, such as a trace or graph. The sphygmograph was invented in the mid-19th century and was one of the early devices used in the field of cardiology and hemodynamics.
"Wheels, Life and Other Mathematical Amusements" is a collection of essays and articles written by mathematician and popular science author Martin Gardner. First published in 1983, the book showcases Gardner's unique ability to present complex mathematical concepts in an engaging and accessible manner. The content often includes a mix of recreational mathematics, puzzles, mathematical games, and interesting anecdotes related to various branches of mathematics.
"When Einstein Walked with Gödel" is a play written by Nobel Prize-winning physicist and playwright Donald Margulies. The play is a fictional account that imagines conversations between two of the 20th century's most significant thinkers, Albert Einstein and Kurt Gödel. Set in the 1940s, the narrative focuses on their walks through Princeton, New Jersey, where they were both professors at the Institute for Advanced Study.

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