An external memory algorithm is a type of algorithm designed to efficiently handle large data sets that do not fit into a computer's main memory (RAM). Instead, these algorithms are optimized for accessing and processing data stored in external memory, such as hard drives, SSDs, or other forms of secondary storage.
Higuchi dimension is a method for estimating the fractal dimension of a curve or time series. Developed by Takashi Higuchi in 1988, this approach is particularly useful for analyzing the complex patterns found in various types of data, such as biological signals, financial time series, and other phenomena that exhibit self-similarity. The Higuchi method works by constructing different approximations of the original data, effectively measuring how the length of the curve changes as the scale of the measurement changes.
A hybrid algorithm is a computational approach that combines two or more distinct algorithms or techniques to leverage the strengths of each and improve overall performance or efficiency. Hybrid algorithms can be used in various fields, such as optimization, machine learning, image processing, and data analysis. The goal is to create a more robust solution that can perform better than any of the individual algorithms alone.
The term "American relativity theorists" generally refers to physicists and researchers in the United States who have contributed to the field of relativity, specifically the theories formulated by Albert Einstein: Special Relativity and General Relativity. These theories revolutionized our understanding of space, time, and gravity, profoundly impacting modern physics.
Aninda Sinha is a name that might refer to various individuals, depending on the context. Without specific context, it's difficult to determine precisely who you are referring to. If you mean a specific person—such as an academic, professional, or personal figure—please provide additional details. For instance, Aninda Sinha might be recognized in fields like academia, research, or other professional domains.
Ammunition designers are engineers or specialists who develop and create ammunition for firearms and other projectile-launching devices. Their work involves a deep understanding of ballistics, materials science, and the mechanics of firearms, as well as compliance with safety and legal standards. Key responsibilities of ammunition designers may include: 1. **Research and Development**: They conduct research to improve existing ammunition designs and develop new types of ammunition to enhance performance characteristics, such as accuracy, range, and stopping power.
The 3D structure of GFP is so cool. It is so clearly a bottle with a fluorescent bit well isolated right in the middle. Like a little lamp.
Gel electrophoresis by Ciro Santilli 37 Updated 2025-07-16
Technique widely used to measure the size of DNA strands, most often PCR output of a region of interest.
A simple sample application is gel electrophoresis alelle determination.
In the case of indel mutations (see limits of gel electrophoresis for minimal size difference issues), it is possible to determine the allele with gel electrophoresis. You can just read out the alleles right in the gel. It is a thing of beauty.
As of 2020, this method appears to be much cheaper than DNA sequencing approaches.
Video 1.
Gel Electrophoresis to Determine Genotype
. Source.
Yves Quéré is a prominent French physicist known for his contributions to the fields of complex systems, nonlinear dynamics, and the study of fundamental physical processes. He has been involved in various research areas, including fluid mechanics and the behavior of complex networks. Quéré has also published numerous papers and articles in scientific journals.
ACARS stands for Aircraft Communications Addressing and Reporting System. It is a digital datalink system used in aviation to facilitate communication between aircraft and ground stations. ACARS allows for the transmission of a variety of messages, including flight information, weather updates, and maintenance data. The system uses a combination of VHF radio, satellite communication, and sometimes HF radio, to send and receive messages.
The Lathen train collision was a tragic railway accident that occurred on June 22, 2008, near the town of Lathen in Germany. The collision involved a passenger train and a freight train, resulting in significant casualties. In the incident, a regional passenger train collided with a freight train that was allegedly on the wrong track due to a signaling error. The collision led to the derailment of several train cars and caused multiple injuries and fatalities.
AMOLF, or the Institute for Atomic and Molecular Physics, is a research institute based in the Netherlands that focuses on fundamental research in the fields of physics, chemistry, and materials science. It is part of the Netherlands Organization for Scientific Research (NWO) and is located in Amsterdam. AMOLF is known for its interdisciplinary approach, where researchers investigate complex molecular systems, nanoscale phenomena, and advanced materials.
Amusement rides have been introduced and developed over many years, with many significant releases each year. Here is a general overview of notable amusement ride introductions by decade rather than by specific year: ### 1800s - **Merry-Go-Round (Carousel):** Early versions appeared in the 18th century but became popular in amusement parks in the 19th century.
As of my last update in October 2023, "Amy Tsui" might not refer to a widely recognized figure or entity. However, there is a notable individual named Amy Tsui, a prominent researcher in the field of linguistics, particularly in language assessment and testing. She has made significant contributions to the study of language education and policy, particularly in the context of Hong Kong and China.
Ana Achúcarro may refer to a prominent figure in the field of art or another domain. One well-known individual by that name is a Spanish pianist and educator. She is noted for her work in promoting classical music, and she has performed with various orchestras and collaborated with other musicians.

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