Herbig-Haro (HH) objects are small, bright patches of nebulosity associated with star-forming regions. They are created by the interaction of stellar jets ejected from young, newly formed stars with the surrounding interstellar medium. The jets typically have high velocities and can collide with the gas and dust surrounding the forming star, causing these bright knots of emission. Herbig-Haro objects were first identified by astronomers George Herbig and Guillermo Haro in the 1940s.

Hermann Glauert is a notable figure in the field of aerodynamics, particularly known for his contributions to the understanding of wing theory and airfoil design. He was a German engineer and scientist whose work helped advance the principles of flow around wings and the aerodynamic characteristics of aircraft.

The Hetherington Prize is an award established in recognition of excellence in journalism, specifically in the field of conflict reporting. It is named after the late British journalist and photojournalist Tim Hetherington, known for his coverage of war and humanitarian crises. The prize aims to support and encourage emerging journalists who are dedicated to reporting on challenging subjects, particularly those related to conflict and its impact on communities.

Hierarchical clustering of networks is a method used to group nodes in a network into clusters based on their similarities and relationships. It is particularly useful in the analysis of complex networks, such as social networks, biological networks, and communication networks, where the goal is to uncover underlying structures or patterns within the data.

High-commitment management is a management approach that focuses on creating an organizational culture where employees are highly engaged, motivated, and committed to their work and the goals of the organization. This concept emphasizes the importance of employee involvement, trust, and shared values, aiming to foster an environment that encourages workers to take ownership of their roles and contribute positively to the organization's success.

High frequency content measures are metrics used primarily in the fields of signal processing, audio analysis, and various data analysis domains to quantify the amount of high-frequency information present in a signal or dataset. High-frequency content often refers to rapid changes or variations in the data, which can correspond to noise, sharp transitions, or detailed information.

The Highland Park Society of Model Railroad Engineers is a local organization dedicated to the hobby of model railroading. Typically, such societies provide a space for enthusiasts to gather, share their passion for model trains, and collaborate on projects. Members often build and operate model train layouts, participate in community events, and promote the hobby through education and outreach.

The Hikurangi Trench is a significant geological feature located off the eastern coast of New Zealand's North Island. It is a deep oceanic trench that marks the boundary between the Pacific Plate and the Australian Plate. The trench is part of the complex subduction zone where the Pacific Plate is being forced beneath the Australian Plate.

Hinke Osinga is an academic known for her work in the field of applied mathematics, particularly in dynamical systems and control theory. Her research often focuses on topics such as bifurcation theory, stability analysis, and the mathematical modeling of real-world systems. She has contributed to various fields, including biology, engineering, and physics, through the application of mathematical principles.

The Historic Railpark and Train Museum, located in Bowling Green, Kentucky, is a heritage museum dedicated to preserving and showcasing the history of railroads in the region. Housed in the former L&N Depot, the museum features a variety of exhibits related to the railroad industry, including historical artifacts, photographs, and stories that highlight the significance of railroads in transportation, commerce, and everyday life.

Somatic recombination refers to the process by which immune system cells, particularly B cells and T cells, rearrange their DNA to generate a diverse repertoire of receptors. This is crucial for the adaptive immune response, allowing the immune system to recognize a vast array of antigens (foreign substances).

The anti-nuclear movement is a social and political movement that opposes the use of nuclear energy and the development of nuclear weapons. Its history is complex and has evolved over several decades, shaped by public perceptions of nuclear technology, geopolitical events, and environmental concerns. Here’s a brief overview of its key phases and events: ### 1.

"Holon" is a sculpture created by the artist Anthony Caro in 1968. This work is notable for its abstract form and use of steel, characteristic of Caro’s style, which often involved large, playful metal structures that interacted with their surroundings. The sculpture is an example of modernist art, moving away from representational forms and focusing on the interplay of shape, space, and color.

SplitsTree is a software tool used for the analysis and visualization of phylogenetic relationships and evolutionary processes. It is particularly known for its ability to construct and analyze various types of phylogenetic networks, which can represent complex evolutionary scenarios, including horizontal gene transfer, hybridization, and other non-tree-like evolutionary events.

Holmström's theorem, named after the economist Bengt Holmström, is a result in the field of contract theory. It revolves around the design of contracts in situations where there is asymmetric information, specifically regarding effort or actions taken by agents that cannot be perfectly observed by the principal. The key insights from Holmström's theorem are: 1. **Incentive Compatibility**: The theorem underscores the importance of designing contracts that provide the right incentives for agents (e.g.

A homothetic vector field is a type of vector field in differential geometry and the study of Riemannian manifolds that encodes self-similarity characteristics of the manifold. More precisely, a vector field \( V \) on a Riemannian manifold \( (M, g) \) is said to be homothetic if it generates homotheties of the metric \( g \).

Hooke's Law states that the force \( F \) exerted by a spring is directly proportional to the displacement \( x \) from its equilibrium position, provided that the elastic limit is not exceeded.

The Hopf fibration is a mathematical construction that represents a particular way of decomposing certain spheres into circles. Named after Heinz Hopf, who introduced the concept in 1931, it provides a fascinating connection between topology, geometry, and algebra. Specifically, the Hopf fibration describes a fibration of the 3-sphere \( S^3 \) over the 2-sphere \( S^2 \) with the fibers being circles \( S^1 \).

Horizontal resistance refers to a level in a financial asset's price chart where the price tends to stop rising and may reverse direction. This is often seen as a price level where a significant number of sellers enter the market, causing the price to struggle to move above that level. In technical analysis, horizontal resistance is represented visually by a horizontal line drawn across the peaks in a price chart, indicating areas where the price has historically struggled to break through.

The Howland Will Forgery Trial refers to a legal case involving accusations of will forgery associated with the estate of an individual named Howland.