A quantum wire is a nanoscale structure in which charge carriers, such as electrons, are confined to move in one dimension, effectively creating a "wire" with quantum mechanical properties. This confinement leads to quantization of energy levels and results in unique electronic and optical behaviors that are not observed in bulk materials.
Waxes are a diverse group of organic compounds that are typically lipophilic (fat-loving) and hydrophobic (water-repelling). They are usually solid at room temperature and can melt and solidify without significant chemical change. Waxes are composed primarily of long-chain fatty acids and long-chain alcohols, and they can also include various other components such as hydrocarbons, esters, and resins.
Dendronized polymers are a class of macromolecules characterized by their dendritic (tree-like) structures combined with linear polymer chains. They blend the features of dendritic polymers, which are highly branched and have a defined modular architecture, with the characteristics of traditional linear polymers.
Hydrogel is a three-dimensional network of hydrophilic polymer chains that can retain a significant amount of water while maintaining their structure. These materials can absorb and hold large quantities of water—sometimes up to several hundred times their dry weight—without dissolving. Due to their high water content, hydrogels exhibit properties similar to natural tissue, making them particularly useful in medical and biological applications.
Patchy particles are a type of colloidal particle or nanostructure that possess specific, localized regions or "patches" with distinct chemical or physical properties. These patches can be designed to have different functionalities—such as hydrophobic or hydrophilic characteristics, or specific binding affinities—for the purpose of creating complex structures or assemblies. The unique surface properties of patchy particles allow them to interact selectively with other particles or molecules, enabling the formation of diverse and complex structures at the nanoscale.
Counting efficiency typically refers to the effectiveness of a detection system in accurately counting and registering events or particles. This term is commonly used in fields such as nuclear physics, particle physics, and radiation detection. In the context of radiation detection, counting efficiency is a measure of how well a detector can count the number of incoming radiation events (like photons or particles) compared to the actual number of events that occur.
A Gas Electron Multiplier (GEM) is a type of gas detector used in particle physics and radiation detection. It is designed to amplify the ionization created by charged particles interacting with a gas medium. Here's how it works and its key features: ### Structure and Function 1. **Design**: A GEM consists of a thin plastic or metallic foil with holes (microholes) that are typically a few tens of micrometers in diameter.
PITZ can refer to a few different things depending on the context, but one common interpretation is related to technology and computer science. It can stand for "PITZ – Performance Information and Technology Zones," which refers to areas within a network or technological infrastructure focused on performance monitoring and analysis.
A particle shower, often referred to as an "electromagnetic shower" or "hadronic shower," is a cascade of particles that occurs when a high-energy particle, such as a cosmic ray or a high-energy photon, interacts with matter. The phenomenon can happen in various contexts, including: 1. **Electromagnetic Showers**: These occur when a high-energy photon or electron interacts with matter and produces a cascade of secondary particles.
Two-photon physics refers to a branch of quantum physics that involves the interaction of two photons, which are particles of light. This area of study is particularly important in understanding various phenomena in quantum optics, quantum information, and fundamental physics.
Antimony (Sb) has several isotopes, but the most notable ones are: 1. **\(^{121}\text{Sb}\)**: This is the most stable and abundant isotope of antimony, accounting for about 57% of natural antimony. It has a half-life that is effectively stable as it doesn't undergo radioactive decay. 2. **\(^{123}\text{Sb}\)**: This isotope makes up about 42% of natural antimony and is also stable.
The number 277 is an integer that comes after 276 and before 278. It is an odd number, and it can be expressed in various forms, such as: - In Roman numerals, 277 is written as CCLXXVII. - In binary, it is represented as 100010101. - In hexadecimal, it is represented as 115. Additionally, 277 is considered a prime number because it has no positive divisors other than 1 and itself.
Berkelium (Bk) is a synthetic element with atomic number 97 and is part of the actinide series. It has several isotopes, the most notable of which are: 1. **Berkelium-247 (Bk-247)**: This is the most stable and commonly referenced isotope of berkelium, with a half-life of approximately 1,380 days (about 3.8 years).
Boron has two stable isotopes and several unstable isotopes. The two stable isotopes of boron are: 1. **Boron-10 (¹⁰B)**: This isotope has 5 protons and 5 neutrons, and it constitutes about 19.9% of naturally occurring boron. It is often used in applications such as neutron capture therapy for treating cancer and in various nuclear applications.
Curium (Cm) is an actinide element with atomic number 96. It has several isotopes, with the most notable being: 1. **Curium-242 (Cm-242)**: This is the most stable isotope of curium and has a half-life of about 162.8 days. It decays primarily by alpha emission. 2. **Curium-244 (Cm-244)**: This isotope has a half-life of approximately 18.
Einsteinium (Es) is a synthetic element with the atomic number 99. It has several isotopes, the most notable of which are: 1. **Einsteinium-253 (Es-253)**: This is the most stable isotope of einsteinium, with a half-life of about 20.5 days. It is produced in nuclear reactors and is used in research.
CHRNA6 refers to the gene that encodes the alpha-6 subunit of the nicotinic acetylcholine receptor (nAChR). Nicotinic acetylcholine receptors are a class of receptors that mediate synaptic transmission in the nervous system and are involved in various physiological processes, including muscle contraction, cognition, and reward pathways. The CHRNA6 gene is located on chromosome 8 in humans and is part of the ligand-gated ion channel family.
Pinned article: ourbigbook/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