Heart rate, also known as pulse, refers to the number of times the heart beats in a minute. It is a vital sign that provides important information about a person's cardiovascular health and overall fitness. Heart rate can vary based on various factors, including age, fitness level, stress, activity level, and health conditions. Typically, a normal resting heart rate for adults ranges from 60 to 100 beats per minute (bpm).
Airway resistance refers to the resistance to airflow in the respiratory passages, which can affect how easily air moves in and out of the lungs. It is a component of the total resistance within the respiratory system and is primarily determined by the diameter of the airways, the viscosity of the air, and the lung volume. Airway resistance can be influenced by several factors, including: 1. **Bronchial Diameter**: The wider the airways, the lower the resistance.
International Mathematics Research Surveys (IMRS) is a scholarly publication that provides a platform for researchers to share comprehensive surveys on various topics in mathematics. The surveys typically cover a wide range of mathematical fields, offering insights into recent developments, key problems, historical context, and significant results in those areas. The main purposes of IMRS include: 1. **Dissemination of Knowledge:** It aims to disseminate important mathematical research findings to a broader audience, thereby fostering collaboration and communication among mathematicians.
Human height refers to the measurement of how tall a person is, typically measured from the bottom of the feet to the top of the head while standing upright. Height can vary significantly among individuals and populations due to a combination of genetic, environmental, nutritional, and health factors. Globally, average heights can differ based on factors like geography, ethnicity, and socio-economic conditions.
The Kermack–McKendrick theory, developed by the British mathematicians William Ogilvy Kermack and Anderson G. McKendrick in the 1920s, is a foundational model in the field of epidemiology. It is primarily focused on the mathematical modeling of infectious diseases and describes how infections spread through a population. The core of the theory involves constructing a set of differential equations that describe the dynamics of an infectious disease in a population over time.
Sabrina Gonzalez Pasterski is a prominent physicist and a talented researcher known for her work in the field of theoretical physics, particularly in high-energy physics and quantum gravity. She gained significant attention for her early contributions to science as a student, including her research on black holes and her work on aspects of quantum mechanics. Pasterski completed her undergraduate studies at Harvard University and went on to pursue a Ph.D. at the University of Chicago.
Acta Mathematica Sinica is a mathematical journal that publishes research articles in all areas of mathematics. It is associated with the Chinese Mathematical Society and is published by Springer. The journal features original research papers, comprehensive survey articles, and other contributions to the field of mathematics. Acta Mathematica Sinica aims to promote the advancement and dissemination of mathematical knowledge, particularly in relation to research from China and the broader mathematical community.
"Advances in Applied Clifford Algebras" is a scientific journal that focuses on research related to Clifford algebras and their applications in various fields, including mathematics, physics, engineering, and computer science. Clifford algebras are an extension of linear algebra that generalizes concepts such as complex numbers and quaternions, providing a framework that is useful for understanding geometric concepts and phenomena.
"Advances in Mathematics" is a peer-reviewed scientific journal that publishes original research articles in all areas of mathematics. It is well-known for featuring high-quality papers that contribute to various fields, including algebra, geometry, topology, analysis, and applied mathematics. The journal aims to present significant new results, techniques, and perspectives in mathematics. The journal has a strong reputation and is widely cited in the mathematical community.
"Annales de la Faculté des Sciences de Toulouse" is a scientific journal that publishes research articles in the field of mathematics and related topics. It is associated with the University of Toulouse in France and aims to disseminate significant research findings, focusing particularly on areas of pure and applied mathematics. The journal has a history of contributing to the mathematical community by providing a platform for researchers to share their work.
"Annals of Functional Analysis" is a scientific journal that publishes research articles in the field of functional analysis and its applications. Functional analysis is a branch of mathematical analysis that deals with function spaces and operators, and it has significant applications in various areas of mathematics, physics, engineering, and other disciplines. The journal typically includes original research papers, reviews, and sometimes special issues or thematic collections that focus on specific topics within functional analysis.
The Asia-Pacific Journal of Operational Research (APJOR) is a scholarly journal that focuses on the field of operational research and its applications. Published periodically, APJOR features research articles, case studies, and surveys that contribute to the advancement of operational research methodologies, models, and practices within the Asia-Pacific region and beyond. The journal typically includes topics such as optimization, decision analysis, simulation, supply chain management, logistics, and other areas that are relevant to operational research.
The Banach Journal of Mathematical Analysis is a peer-reviewed mathematical journal that focuses on various areas of mathematical analysis, including but not limited to functional analysis, harmonic analysis, complex analysis, and operator theory. The journal is named after Stefan Banach, a prominent figure in the field of functional analysis.
The Bulletin of the Brazilian Mathematical Society (Boletim da Sociedade Brasileira de Matemática, or BSBM) is a scientific journal that publishes research articles, surveys, and other contributions related to various fields of mathematics. It serves as a platform for the dissemination of mathematical knowledge and is associated with the Brazilian Mathematical Society (SBM). The bulletin typically features original research papers, expository articles designed to make complex topics more accessible, and announcements related to mathematical events and activities in Brazil and beyond.
"Contrôle Optimisation et Calcul des Variations" (COCV) is a French term that translates to "Control, Optimization, and Calculus of Variations" in English. It refers to a field of study in mathematics that combines three main areas: 1. **Control Theory**: This area focuses on the analysis and design of systems to achieve desired behaviors by manipulating their inputs.
In the context of algebra, the term "communications" can refer to different concepts depending on the specific focus. Generally, it might relate to the way mathematical ideas and concepts are conveyed or expressed through language and notation. Here are a few interpretations: 1. **Communication of Mathematical Ideas**: This involves effectively conveying algebraic concepts through written or spoken language. It includes explaining algebraic operations, the properties of numbers, and the reasoning behind solving equations or inequalities.
"Communications in Contemporary Mathematics" is a scholarly journal dedicated to the dissemination of research in various fields of mathematics. It typically features articles that present original findings, reviews, and discussions on contemporary topics within mathematics and its applications. The journal aims to foster communication among mathematicians by providing a platform for sharing innovative ideas, results, and techniques. It often covers a wide range of areas, including pure mathematics, applied mathematics, and interdisciplinary research that involves mathematical methods.
Forum Geometricorum is a scholarly journal focused on the field of mathematics, specifically geometry. It serves as a platform for researchers to publish papers that cover various aspects of geometry, including both classical and contemporary topics. The journal is known for its emphasis on high-quality contributions that may include original research articles, survey papers, and expository articles that clarify complex geometric concepts.
"Elemente der Mathematik" is a significant work by the German mathematician Richard Courant and the mathematician Herbert Robbins. Originally published in 1938, the book is recognized for its comprehensive introduction to various fields of mathematics, presented in a way that emphasizes the underlying principles and connections among different mathematical concepts. The title translates to "Elements of Mathematics," and the work covers topics such as number theory, algebra, geometry, and calculus, among others.
The European Journal of Operational Research (EJOR) is a scholarly journal that publishes research articles related to the field of operational research (OR). Operational research is a discipline that uses advanced analytical methods to help make better decisions. The journal covers a wide range of topics, including but not limited to optimization, decision analysis, simulation, logistics, and supply chain management.

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