Topics (384k) Articles (398k) Users (410) Discussions (242) Comments (383) Files (13k) New article
A cyclic hemiacetal in equilibrium with an open-chain hydroxy carbonyl compound. Different lactol anomers can converge to the same planar aldehyde before nucleophilic addition.
A small-molecule inhibitor of Hedgehog pathway activity used in experimental patterning studies. Vehicle controls, developmental timing and checks for generalized toxicity are needed when interpreting its effects.
An early cardiac progenitor domain that differentiates into much of the initial myocardium, with major contributions to the left ventricle in mouse. Its boundaries and contributions require stage- and species-specific fate mapping.
An early arrangement of cardiogenic tissue before formation of the linear heart tube in the mammalian embryo.
An early tubular cardiac structure whose construction includes tissue convergence, differentiation and continued addition of cells at its poles.
Three-dimensional bending and torsion of the early heart tube. Geometry, left–right patterning, tissue growth and regional cell differentiation contribute distinct aspects.
myocardium acquiring chamber-associated growth, structural and electrophysiological properties, distinct from specialized non-chamber territories.
The region connecting atrial and ventricular compartments during cardiac development. Its regulatory programme differs from that of rapidly expanding chamber myocardium.
The muscular tissue of the heart. Regional myocardial differentiation and growth are distinct from endocardial or supporting-cell development.
A heap data structure in which every parent key is at least as large as its children's keys. The root therefore stores a largest key, allowing a priority queue to retrieve a current maximum efficiently.
A heap data structure supporting a meld operation that combines two heaps into one while preserving the heap order. The cost of melding distinguishes implementations such as a leftist heap from ordinary binary heaps.
An associative array implemented with a hash table. It associates each stored key with a value and resolves collisions between keys with equal hash locations.
A set data structure backed by a hash table. It stores each key at most once and supports membership tests, insertion, and removal with expected constant time under suitable hashing and load assumptions.
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