Empathy-altruism is a theory in psychology that suggests that feelings of empathy—our ability to understand and share the feelings of others—can lead to altruistic behavior, which is acting to benefit someone else without regard for one’s own self-interest. This concept was notably developed by psychologist C. Daniel Batson and is rooted in the idea that when we empathize with another person, we become motivated to help them, leading to prosocial behavior.
Diocles was a Greek mathematician and geomancer active during the 2nd century BCE. He is best known for his work in the field of geometry, particularly his contributions to the study of conic sections, which are curves obtained by intersecting a plane with a cone. Diocles is also recognized for his work on the problem of finding the area of certain shapes, including the area of a circle, and for introducing methods related to the tangents of curves.
A Dirichlet series is a type of infinite series of the form: \[ D(s) = \sum_{n=1}^\infty \frac{a_n}{n^s} \] where \( s \) is a complex variable, \( a_n \) are complex coefficients, and \( n \) ranges over the positive integers. The series converges for certain values of the complex variable \( s \) depending on the properties of the coefficients \( a_n \).
Discharge pressure refers to the pressure of a fluid at the outlet or discharge end of a fluid delivery system, such as a pump, compressor, or any other type of fluid-moving equipment. It is a critical parameter in various engineering applications, particularly in hydraulic, pneumatic, and fluid dynamics systems.
Disciplined Agile Delivery (DAD) is a process framework designed to provide a more flexible and comprehensive approach to software delivery than traditional Agile methodologies like Scrum or Kanban. Introduced by the Disciplined Agile Consortium, DAD aims to guide organizations in adapting Agile practices to their unique contexts and needs.
In geotechnical engineering, "discontinuity" refers to a break or change in the continuity of a geological material, which can significantly influence its mechanical behavior and stability. Discontinuities can manifest in various forms, including: 1. **Cracks and Fractures**: Natural or induced breaks in rock or soil that can affect strength, permeability, and stability. 2. **Foliation**: Layers within metamorphic rocks that create planes of weakness.
Discontinuity Layout Optimization (DLO) is a design and optimization approach typically used in fields like structural engineering, mechanical design, and materials science to improve the performance of structures and components by considering the spatial arrangement of materials and elements. The key concept behind DLO is the identification and utilization of discontinuities in a material or system's layout, which can lead to enhanced performance characteristics such as strength, stiffness, weight reduction, and overall efficiency.
Radiant flux, also known as radiant power, is the measure of the total optical power of electromagnetic radiation emitted, transmitted, or received per unit time. It is expressed in watts (W) and accounts for all wavelengths across the electromagnetic spectrum, not just those in the visible range.
Dislocation avalanches are a phenomenon observed in materials undergoing plastic deformation, particularly in crystalline solids. They refer to sudden and abrupt collective movements of dislocations, which are line defects in the crystal structure of materials. When stress is applied to a material, dislocations can move, leading to plastic deformation. However, under certain conditions, the movement of these dislocations can become unstable and result in a rapid, collective motion, akin to an "avalanche.
A Radiation Portal Monitor (RPM) is a type of security equipment used to detect and identify radioactive materials that may be transported through ports, borders, or other critical locations. These monitors are essential for preventing the illicit transport of nuclear materials and ensuring public safety. **Key Features of Radiation Portal Monitors:** 1. **Detection Capability**: RPMs are designed to detect gamma and neutron radiation emitted by radioactive isotopes.
The distance modulus is a mathematical expression used in astronomy to relate the distance of an object (like a star or a galaxy) to its absolute magnitude and apparent magnitude. It is a key concept in determining how far away celestial objects are based on their brightness.
The Distributed Annotation System (DAS) is a framework designed for the efficient integration and sharing of biological data, particularly annotations related to genomic features. DAS allows for the distribution and retrieval of biological data from multiple sources, enabling researchers to work with various datasets seamlessly. ### Key Components of DAS: 1. **Data Sources**: DAS servers host biological data and provide it through a standardized protocol. These servers can contain various types of data, including gene annotations, sequence information, and protein structures.
Radiative equilibrium refers to a state in which the energy absorbed by an object or system from incoming radiation is equal to the energy it emits as radiation. In this state, there is no net gain or loss of energy, and the temperature of the object or system remains constant over time. In the context of planetary atmospheres, radiative equilibrium is particularly important for understanding the balance between incoming solar radiation (energy received from the Sun) and outgoing thermal radiation (energy emitted back into space).
A divided power structure refers to a political system in which power and authority are distributed among different branches or levels of government, rather than being concentrated in a single entity. This concept is most commonly associated with federal systems, such as that of the United States, where powers are divided between national and state governments.
In the context of group theory, a **divisible group** is a particular type of abelian group (a group where the group operation is commutative) that satisfies a specific divisibility condition related to its elements.
A bitmap is a type of digital image that is composed of a grid of individual pixels, where each pixel can be set to a specific color. The term "bitmap" comes from the computer programming terminology, where "bit" refers to the smallest unit of data in computing, and "map" refers to a spatial representation of data.
Radical honesty is a concept and practice developed by psychologist Brad Blanton in the 1990s. It advocates for complete honesty in communication and interactions with others, emphasizing the importance of expressing one's true feelings, thoughts, and experiences without filtering or concealing them. The idea is that by being radically honest, individuals can eliminate the emotional burdens of deception, misunderstandings, and societal expectations.
A dodecahedral cupola is a type of geometric solid that is formed by combining two elements: a dodecahedron and a cupola. The dodecahedron is a polyhedron with 12 pentagonal faces, while a cupola is a type of dome shape that typically consists of a polygonal base and a set of triangular faces that converge at a point above the base.
Doerte Blume is a notable figure in the field of cheminformatics and computational chemistry, recognized for her contributions to the development of software tools and methods for the analysis of chemical data. She is known for her research and work in areas like molecular modeling, machine learning applications in chemistry, and the visualization of chemical information. However, without more specific context or details, it's difficult to provide a comprehensive description.
A domain wall refers to a boundary between two regions, or "domains," in a material where the direction of magnetization, polarization, or some other order parameter changes. Domain walls are particularly significant in the fields of magnetism and ferroelectricity. ### In Ferromagnetic Materials: In ferromagnetic materials, magnetization vectors can point in different directions within distinct regions (domains).
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