Wood warping refers to the distortion of wood from its original shape, typically caused by changes in moisture content. As wood absorbs or loses moisture, it can expand or contract unevenly, leading to various types of warping. Common forms of warping include: 1. **Cupping**: The edges of a board rise while the center sinks, creating a concave shape. 2. **Bow**: The entire length of the board becomes curved, resembling a bow shape.
Population health is a field that focuses on the health outcomes of a group of individuals, encompassing the distribution of those outcomes within the group. It takes a broad view of health, considering various factors that influence health status, including social, economic, environmental, and behavioral determinants, as well as healthcare access and quality. Key components of population health include: 1. **Health Outcomes**: Understanding how different populations fare in terms of health, including disease prevalence, morbidity, mortality, and quality of life.
Cohort study methods are a type of observational research design where a group of individuals (the cohort) is followed over time to assess the effects of certain exposures or characteristics on specific outcomes, such as the incidence of disease. In cohort studies, researchers typically divide the cohort into exposed and unexposed groups and then observe and compare the health outcomes over a defined period.
Yates analysis, often referred to as Yates' algorithm or Yates' method, is a statistical technique used for analyzing and understanding the effects of different factors in experiments, especially those involving factorial designs. It is typically associated with the analysis of variance (ANOVA) and response surface methodology.
Mettoy was a British toy manufacturer, best known for producing model cars and die-cast toys, particularly during the mid-20th century. Founded in 1938 by the engineer and toy maker George P. Smith in a small workshop, Mettoy gained recognition for its high-quality products, including the popular "Corgi Toys" brand, which featured a wide range of scaled model vehicles.
A Kähler-Einstein metric is a special type of Riemannian metric that arises in differential geometry and algebraic geometry. It is associated with Kähler manifolds, which are a class of complex manifolds with a compatible symplectic structure. A Kähler manifold is a complex manifold \( (M, J) \) equipped with a Kähler metric \( g \), which is a Riemannian metric that is both Hermitian and symplectic.
In mathematics, particularly in the context of computation and numerical methods, "parallelization" refers to the process of dividing a problem into smaller, independent sub-problems that can be solved simultaneously across multiple processors or computing units. This approach is used to improve computational efficiency and reduce the time required to obtain results. ### Key Concepts of Parallelization in Mathematics: 1. **Decomposition**: The original problem is broken down into smaller tasks.
Representation up to homotopy is a concept in algebraic topology and homotopy theory, which pertains to the study of topological spaces and the relationships between their homotopy types. To understand this concept clearly, we need to unpack some of the terminology involved. ### Representations In a general mathematical sense, a representation relates a more abstract algebraic structure (like a group or a category) to linear transformations or geometric objects.
In mathematics, particularly in the context of mathematical analysis and topology, the term "spray" refers to a specific type of vector field on a manifold that is associated with a variation of geodesics. More formally, a spray on a differentiable manifold \( M \) is a smooth section of the bundle \( TM \to M \) that can be thought of as defining a family of curves on \( M \).
The Wu–Yang dictionary is a conceptual framework established by Wu and Yang in the context of mathematical physics, particularly in the study of quantum field theory and the relationship between different physical theories. The dictionary helps to connect various physical concepts and structures found in different contexts, such as gauge theories, topological field theories, and string theory. This dictionary serves as a bridge between the theoretical descriptions and the corresponding mathematical structures, facilitating the understanding of how different physical phenomena relate to one another.
Stunted projective space is a type of topological space that can be defined in the context of algebraic topology. More specifically, it involves modifying the standard projective space in a way that truncates it or "stunts" its structure.
Coherent Diffraction Imaging (CDI) is a powerful imaging technique used primarily in the fields of materials science, biology, and nanotechnology. It allows researchers to obtain high-resolution images of the internal structures of samples without the need for lenses, which can often introduce aberrations or restrict resolution.
Card Shark is a unique video game developed by Nerial and published by Devolver Digital. Released in June 2022, the game combines elements of card games and narrative-driven gameplay. Set in 18th century France, players take on the role of a young servant who gets involved in a world of high-stakes gambling. The gameplay focuses on mastering various card tricks and schemes to cheat opponents, using skill and strategy to outsmart them.
Bragg's law is a fundamental principle in the field of crystallography and X-ray diffraction. It relates the angles at which X-rays are diffracted by a crystalline material to the spacing between its atomic planes. The law is named after William Lawrence Bragg and his father, William Henry Bragg, who formulated it in 1913.
Fresnel diffraction is a type of wave diffraction that occurs when a wavefront encounters an obstacle or aperture with dimensions comparable to its wavelength. It is named after the French engineer and physicist Augustin-Jean Fresnel, who developed the theory to better understand the behavior of light.
Canberra distance is a metric used to measure the distance between two points in a multidimensional space, particularly for non-negative data. It is particularly useful in situations where the data may have different scales or when dealing with sparse data. The Canberra distance emphasizes the contributions of smaller values in the datasets, making it more sensitive to differences in low-value dimensions.
Climate TRACE (Tracking Real-time Atmospheric Carbon Emissions) is an initiative aimed at providing accurate and timely data on greenhouse gas emissions globally. Founded in 2020, it leverages advanced technologies such as satellite imagery, machine learning, and artificial intelligence to monitor and analyze emissions from various sources, including power plants, factories, and transportation.
The Digital Millennium Copyright Act (DMCA) is a U.S. law enacted in 1998 that aims to enhance the protection of copyrighted materials in the digital age. One of the key provisions of the DMCA is the mechanism for copyright holders to request the removal or "takedown" of infringing content from online platforms.
The Discrete Cosine Transform (DCT) is a mathematical operation that converts a sequence of data points into a sum of cosine functions oscillating at different frequencies. It is widely used in signal processing and image compression techniques because it has properties that are beneficial for representing signals efficiently.
Signal separation refers to techniques used to isolate individual signals from a mixture of signals. This is commonly encountered in various fields such as audio processing, telecommunications, biomedical engineering, and image processing. The goal is to extract a specific signal of interest from backgrounds of noise or interference, or from other overlapping signals. There are several methods for signal separation, including: 1. **Blind Source Separation (BSS)**: This involves separating signals without prior knowledge of the source signals.
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 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.Figure 3. Visual Studio Code extension installation.Figure 5. . 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. - 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