The term "decades" refers to periods of ten years. It's commonly used to describe specific periods in history, culture, and music, among other fields. For example, the 1980s, 1990s, and 2000s are referred to as decades, each representing a ten-year span. Decades often have particular characteristics, trends, or cultural phenomena that define them, such as fashion styles, music genres, technological advancements, or significant historical events.

A dangling bond refers to a bond that is not fully satisfied or terminated, typically in the context of solid-state physics and chemistry. In a crystalline solid, atoms are arranged in a specific lattice structure, and each atom typically bonds with a specific number of neighboring atoms.

KT90 refers to a type of vacuum tube, specifically a beam power pentode tube used in audio and other electronic applications. It's known for its ability to deliver high power and is often used in audio amplifiers, specifically in hi-fi audio equipment. The KT90 is part of a family of tubes that includes other variants like the KT88 and KT77, but it is characterized by its own specific electrical and performance specifications.

Sergei Fomin is a notable mathematician recognized for his contributions to various fields, particularly in the areas of functional analysis, differential equations, and topology. He is also known for his work in mathematical education and for authoring several influential textbooks and papers. One of his significant contributions is in the area of boundary value problems and the theory of linear operators.

Sergey Chaplygin is most commonly associated with Sergey Alexeyevich Chaplygin (1869–1942), a notable Russian mathematician and engineer known for his work in aerodynamics and fluid mechanics. He made significant contributions to the field, including developments related to gas dynamics and boundary layer theory. Chaplygin's work laid the groundwork for modern aerodynamics, and he is recognized for his mathematical approaches to understanding fluid flows.

Svetlana Gannushkina is a prominent Russian human rights activist known for her work in advocating for the rights of refugees, migrants, and marginalized groups in Russia. She is the founder of the Civic Assistance Committee, an organization that provides support and assistance to asylum seekers and people in need of legal protection. Gannushkina has been a vocal critic of governmental policies regarding migration and has advocated for humane treatment and the protection of the rights of vulnerable populations.

Viktor Maslov is a Russian mathematician known for his significant contributions to various fields, including mathematical physics, the theory of partial differential equations, and asymptotic methods. He is particularly recognized for his work on the Maslov canonical operator and Maslov's theory, which deals with the mathematical foundations of quantum mechanics and classical mechanics. His research often intersects areas such as semi-classical analysis, where he investigates approximations and asymptotic behaviors of physical systems.

Viktor Valentinovich Novozhilov is a Russian mathematician known for his contributions to the fields of mathematical logic, model theory, and set theory. His work has been influential in various mathematical disciplines.

Vladimir Varyukhin may refer to a specific person or a topic, but as of my last update in October 2023, I don't have specific information on an individual by that name. It is possible that he could be a public figure, a professional in a certain field, or related to a specific event or context not widely recognized.

Griselda Pascual does not appear to be a widely recognized public figure or entity based on current information available up to October 2023, making it difficult to provide specific details without additional context. It's possible that Griselda Pascual refers to a person, a character, or a concept that may not be extensively documented or could be known in a specific context or community.

The term "Seychellois statisticians" likely refers to statisticians who are from Seychelles or who work in Seychelles, focusing on the collection, analysis, and interpretation of data related to various fields such as social science, economics, public health, and environmental studies in the country. Seychelles, an archipelago in the Indian Ocean, may have organizations or government bodies that employ statisticians to help inform policy decisions, track economic indicators, and understand social dynamics.

"Venezuelan statisticians" generally refers to individuals or professionals from Venezuela who specialize in the field of statistics. They may work in various sectors, including government, academia, industry, or non-profit organizations, focusing on data collection, analysis, interpretation, and presentation to inform decision-making and policy formulation. In the context of Venezuela, where economic and social challenges have been significant, statisticians may play a crucial role in analyzing data related to poverty, health, education, and other critical areas.

Erwin Engeler is a Swiss mathematician known for his work in the field of computer science, particularly in algorithm design and complexity theory. He has contributed to various aspects of discrete mathematics and theoretical computer science.

René de Saussure is not a widely recognized figure, but you might be referring to Ferdinand de Saussure, a Swiss linguist whose work laid the foundation for many modern linguistic theories. Ferdinand de Saussure is best known for his ideas on the structure of language and the concept of the linguistic sign, which he introduced in his seminal work "Course in General Linguistics.

As of my last update in October 2023, there isn't widely known or significant information about a person named Hajer Bahouri. It's possible that she could be a private individual or a figure in a specific field that hasn't reached mainstream recognition.

John Senyonyi is a well-known figure in the field of education and leadership, particularly in Uganda. He is recognized for his contributions as an academic and for his role as a pastor. He has served in various leadership positions, including as Vice Chancellor of Uganda Christian University (UCU), where he has been influential in promoting higher education and development within the country.

As of my last knowledge update in October 2023, there is no widely recognized figure or topic specifically known as "Volodymyr Koshmanenko." It is possible that he is an individual who has gained prominence after that date, or he may not be widely known on an international scale.

The 21st century has seen significant contributions from Vietnamese mathematicians, who have made their mark in various fields of mathematics, including number theory, algebra, geometry, and applied mathematics. Notably, some of these mathematicians have gained international recognition for their research and contributions to academia. ### Key Vietnamese Mathematicians 1.

As of my last knowledge update in October 2021, Hoàng Hiệp Phạm does not appear to be a widely recognized figure in the international context. It's possible that he may be a notable individual in a specific field, such as arts, sports, or academia, but without more context, it's difficult to provide precise information.

Fideism is a philosophical and theological viewpoint that emphasizes faith as the primary basis for knowledge and belief, particularly in matters of religion. It posits that certain truths, especially those pertaining to God and religious doctrine, can be known only through faith and not through reason, empirical evidence, or rational argumentation.