"Discriminant" can refer to different contexts, but it seems like you might be referring to a book related to mathematics, particularly algebra, or perhaps a literary work that addresses themes of discrimination or differentiation. 1. **Mathematics Context**: In mathematics, particularly in algebra, the discriminant is a component of quadratic equations that helps determine the nature of their roots.
A hybrid cryptosystem is a cryptographic system that combines the strengths of both symmetric and asymmetric (public-key) encryption to secure communications. This approach leverages the efficiency of symmetric encryption for bulk data encryption while using asymmetric encryption for secure key exchange. ### Key Features: 1. **Symmetric Encryption**: - Fast and efficient for encrypting large amounts of data. - Uses a single secret key for both encryption and decryption.
The BED file format (Browser Extensible Data) is a text-based file format used primarily to store information about genomic regions. It is widely utilized in bioinformatics, particularly in the analysis and visualization of genomic data. Here are some key features and characteristics of the BED file format: 1. **Basic Structure**: BED files are typically tab-delimited and consist of at least three required fields: - **Chromosome**: The name of the chromosome or contig (e.g.
A port of entry (POE) is a designated location where individuals and goods are allowed to enter a country. These are typically border crossings, airports, and seaports where customs and immigration officials are stationed to process travelers and cargo for legal entry. At a port of entry, customs inspections are conducted, and travelers may be required to present identification, visas, or other necessary documentation to ensure compliance with immigration laws and regulations.
Georges Friedel (1898–1977) was a French crystallographer known for his work in the field of crystallography and material science. He is particularly recognized for contributions related to the understanding of crystal structures and the development of techniques for the study of solid materials. Friedel is also known for his work on the Friedel law in crystallography, which describes certain symmetry in the diffraction patterns of crystals.
Password-based cryptography refers to cryptographic techniques that utilize passwords for the purpose of securing data, authenticating users, or generating cryptographic keys. This method relies on the assumption that the password, which is typically a string of characters created by the user, is known only to that user and serves as a means of encryption or decryption. Here are some key aspects of password-based cryptography: 1. **Key Derivation**: In many systems, passwords are not used directly as encryption keys.
SIGINT Activity Designator (SAD) is a term associated with signals intelligence (SIGINT) operations. While the specifics of SIGINT activity designators can vary depending on the organization or context, in general, they serve to classify and categorize different types of intelligence collection activities related to signals. In military and intelligence contexts, SIGINT involves the interception and analysis of electronic communications and signals, which can include phone calls, emails, internet traffic, and other forms of communication.
SPKAC stands for "Signed Public Key and Challenge." It is a format primarily used in public key cryptography to encode a public key along with additional information, typically a challenge that serves as a nonce to prevent replay attacks. SPKAC is often used in conjunction with certificates and can simplify the process of obtaining a certificate from a Certificate Authority (CA). The main components of an SPKAC include: 1. **Public Key**: The public key of the entity requesting a certificate.
Apple Inc. develops a variety of software products that run on its hardware devices. Key categories of Apple software include: 1. **Operating Systems**: - **macOS**: The operating system for Mac computers. - **iOS**: The operating system for iPhones. - **iPadOS**: A variant of iOS designed specifically for iPads. - **watchOS**: The operating system for Apple Watch.
Secure Hash Algorithms (SHA) are a family of cryptographic hash functions designed to provide a fixed-size output (the hash) from arbitrary-sized input data. These algorithms are commonly used in various applications, including data integrity verification, digital signatures, password hashing, and more. The SHA family includes several different algorithms, each defined by the National Institute of Standards and Technology (NIST) in the Federal Information Processing Standards (FIPS).
Population informatics is an interdisciplinary field that involves the integration, analysis, and interpretation of data related to populations, typically focusing on human populations. This field leverages various methods from statistics, computer science, social sciences, and public health to gather and analyze large sets of demographic, health-related, social, and environmental data.
Ambient noise level refers to the background sound in a particular environment, which is typically a combination of all the noise present, including natural sounds (like wind, rain, birds, etc.) and human-made sounds (such as traffic, construction, and conversations). This level is measured in decibels (dB) and represents the baseline noise that is always present in an environment. Ambient noise can vary significantly depending on the location and time of day.
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 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. - 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





