Polymers are large molecules composed of repeating structural units called monomers, which are covalently bonded together. The process of forming polymers from monomers is known as polymerization. Polymers can be naturally occurring or synthetic, and they play vital roles in both biological systems and industrial applications.
Carothers' equation is a mathematical expression used in the field of polymer chemistry to describe the molecular weight of a polymer formed through step-growth polymerization. Specifically, it relates the degree of polymerization (DP) to the extent of reaction (p) of the monomers involved in the polymerization process.
Chain walking is a term that can refer to different concepts depending on the context. In general, it might refer to: 1. **In Exercise or Fitness Context**: Chain walking could refer to a form of exercise that involves walking while using a chain or resistance tool to enhance strength training or endurance activities. 2. **In Engineering or Robotics**: It might describe a method or technique used in robotic movement or mechanisms that involve chains for locomotion.
The degree of polymerization (DP) is a measure that indicates the number of repeating units in a polymer chain. It is essentially the number of monomeric units that are joined together to form a larger polymer molecule. The DP can provide insights into the properties of the polymer, such as its molecular weight, physical characteristics, and performance in applications.
"Macromolecules" is a scientific journal that publishes research articles and reviews in the field of polymer science and macromolecular chemistry. It is recognized for contributing to the understanding of the chemistry, physics, and engineering of macromolecules, including synthetic and natural polymers.
A polyelectrolyte is a type of polymer that carries charged groups along its backbone. These charged groups can be either positively (cationic) or negatively (anionic) charged, and they dissociate in solution, allowing the polymer to interact strongly with water and other ions.
Self-healing hydrogels are a class of materials that can autonomously repair themselves after damage, maintaining their functionality and integrity over time. These hydrogels are primarily composed of polymer networks that can recover from mechanical injuries or environmental stressors through various chemical or physical mechanisms.
Reversible-deactivation radical polymerization (RDRP) is a type of controlled radical polymerization technique that allows for the regulation of polymer growth and the control of molecular weight, polydispersity, and architectures of the resulting polymers. This method addresses some of the challenges associated with traditional radical polymerization, such as the uncontrolled growth of polymer chains and the wide distribution of molecular weights.
Smart polymers, also known as responsive or stimuli-responsive polymers, are a class of polymers that can undergo significant changes in their properties or behavior in response to external stimuli. These stimuli can be physical, chemical, or biological in nature and can include factors such as temperature, pH, light, electric or magnetic fields, and chemical substances. The key characteristics of smart polymers include: 1. **Stimuli Responsiveness**: They can change their physical state or chemical properties when exposed to specific external conditions.
Aitken interpolation, also known as Aitken's delta-squared process, is a method used in numerical analysis to improve the convergence of a sequence of approximations to a limit, particularly when working with interpolation polynomials. The primary idea of Aitken interpolation is to accelerate the convergence of a sequence generated by an interpolation process.
In mathematics, particularly in algebra, the "ring of polynomial functions" refers to a specific kind of mathematical structure that consists of polynomial functions, along with the operations of addition and multiplication.
Calcite is a carbonate mineral composed of calcium carbonate (CaCO₃). It is one of the most abundant minerals on Earth's surface and has a wide range of forms and occurrences. Here are some key features and facts about calcite: 1. **Crystalline Structure**: Calcite crystallizes in the trigonal system, and its crystals can appear as rhombohedra, scalenohedra, or as massive, granular forms.
Cristobalite is a high-temperature polymorph of silica (SiO₂). It is one of the several crystalline forms of silica, the others being quartz and tridymite. Cristobalite is characterized by its distinct crystal structure and is typically stable at temperatures above about 1,470 °C (2,680 °F). Cristobalite can form in volcanic rocks and is often found in deposits resulting from the cooling of molten lava.
The term "floating population" refers to a group of people who temporarily reside in a particular area but do not have long-term residential status there. This concept is often used in the context of urbanization and migration to describe individuals who move to cities or urban areas for work, education, or other reasons without officially settling down in that location.
The Al-Salam–Ismail polynomials, often denoted \( p_n(x; a, b) \), are a family of orthogonal polynomials that are generalized and belong to the class of basic hypergeometric polynomials. They are named after the mathematicians Al-Salam and Ismail, who introduced them in the context of approximation theory and special functions.
The Carlitz-Wan conjecture is a conjecture in number theory related to the distribution of roots of polynomials over finite fields. Specifically, it is concerned with the number of roots of certain families of polynomials in the context of function fields. The conjecture was posed by L. Carlitz and J. Wan and suggests a specific behavior regarding the number of rational points (or roots) of certain algebraic equations over finite fields.
Chihara–Ismail polynomials, also known as Chihara polynomials, are a family of orthogonal polynomials that arise in mathematical physics, particularly in the context of quantum mechanics and statistical mechanics. They are typically defined with respect to a specific weight function over an interval, and they are generated by a certain orthogonality condition.
Literalism in music refers to an approach or style that emphasizes the direct representation and reproduction of musical ideas, sounds, or motifs without significant alteration, abstraction, or interpretation. This can manifest in various ways, such as: 1. **Exact Reproduction**: Performing a piece of music exactly as it is written, adhering closely to the original score, dynamics, and ornamentation. This approach values fidelity to the composer’s intent.
Gould polynomials are a family of orthogonal polynomials that are particularly associated with the study of combinatorial identities and certain types of generating functions. They are often denoted using the notation \(P_n(x)\), where \(n\) is a non-negative integer and \(x\) represents a variable. These polynomials can arise in various mathematical contexts, including approximation theory, numerical analysis, and special functions.
Control of demographics refers to the strategies and policies implemented by governments, organizations, or groups to influence, manage, or regulate the characteristics of a population. This can include aspects such as age, gender, ethnicity, religion, socioeconomic status, and other social factors. Demographic control can manifest in various ways, including: 1. **Population Policies:** Governments may enact policies that encourage or discourage certain population trends, such as immigration laws, family planning initiatives, or incentives for larger families.

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