The 165th meridian east is a line of longitude that is located 165 degrees east of the Prime Meridian, which is at 0 degrees longitude. This meridian runs from the North Pole to the South Pole, passing through various countries and regions. In the Northern Hemisphere, it crosses parts of Russia, including the Kamchatka Peninsula, and can also be seen in the Bering Sea.

The number 162 is an integer that follows 161 and precedes 163. It can be categorized in several ways: 1. **Mathematical Properties**: - It is an even number. - It is a composite number, meaning it has factors other than 1 and itself. The factors of 162 are 1, 2, 3, 6, 9, 18, 27, 54, and 81.

The 162nd meridian east is a line of longitude that is located 162 degrees east of the Prime Meridian, which runs through Greenwich, London. Meridians are used to measure distances east or west of the Prime Meridian. The 162nd meridian east runs from the North Pole to the South Pole.

A synodic day refers to the time it takes for a celestial body, such as a planet, to rotate once on its axis relative to the position of the Sun as seen from that body. In simpler terms, it is the duration between two successive sunrises or sunsets observed on the surface of the planet. For instance, the synodic day on Earth is approximately 24 hours, which is the time it takes for the Earth to complete one full rotation relative to the Sun.

The 15th meridian west is a line of longitude that is located 15 degrees west of the Prime Meridian, which is at 0 degrees longitude. This meridian runs from the North Pole to the South Pole and passes through several countries in Europe and Africa, including parts of Norway, Sweden, Denmark, and Spain, as well as countries in West Africa. It is one of the meridians used in the geographic coordinate system to help determine locations on Earth.

The 15th century was a time of significant development in mathematics, particularly due to the Renaissance and the revival of classical knowledge. Here are some notable mathematicians from that period, organized by nationality: ### Italian - **Leonardo of Pisa (Fibonacci)** (c. 1170–1250): Although he lived earlier than the 15th century, his works, particularly the *Liber Abaci*, significantly influenced mathematics during the Renaissance period.

The 159th meridian west is a line of longitude that is located 159 degrees west of the Prime Meridian, which is the reference line for longitude located at 0 degrees. This meridian runs from the North Pole to the South Pole, passing through the Pacific Ocean, and it does not have a significant amount of landmass; most of its length is in oceanic regions. In the context of geography, the 159th meridian west is significant for navigation and defining time zones.

The 155th meridian east is a line of longitude located 155 degrees east of the Prime Meridian, which is at 0 degrees longitude. This meridian runs from the North Pole to the South Pole, passing through various countries and geographical features. In the Northern Hemisphere, the 155th meridian east passes through parts of Russia, particularly in the Chukotka Autonomous Okrug, and then moves into the Bering Sea.

The upper half-plane generally refers to a specific region in the complex plane. In complex analysis, it is defined as the set of all complex numbers whose imaginary part is positive.

An upstream open reading frame (uORF) is a non-canonical feature found in the messenger RNA (mRNA) of eukaryotic genes that can regulate gene expression. It is called "upstream" because it is located upstream (5' region) of the main coding sequence of a gene that encodes the primary protein product.

Frescobaldi is a free and open-source music notation software designed for editing and composing music using the LilyPond music engraving system. It provides a user-friendly graphical interface that allows composers, musicians, and music educators to create and edit LilyPond files easily. Key features of Frescobaldi include: - **LilyPond Integration:** Frescobaldi directly supports LilyPond, enabling users to generate high-quality sheet music and handle complex musical notation.

The number 67 is an integer that comes after 66 and before 68. It is an odd number and is a prime number, meaning it has no positive divisors other than 1 and itself. In Roman numerals, it is represented as LXVII. The number 67 can also be found in various contexts, such as in mathematics, statistics, or everyday life.

A Fresnel zone is a concept used in wave propagation, particularly in the context of radio, microwave, and optical communications. It is related to the diffraction of waves as they travel through space and helps in understanding how obstacles can affect signal strength and clarity. In a more formal sense, the Fresnel zone is defined as a series of concentric ellipsoidal regions surrounding the straight line path between a transmitter and a receiver.

The U.S.–UAE 123 Agreement for Peaceful Civilian Nuclear Energy Cooperation, formally known as the U.S.-UAE Agreement for Cooperation on the Peaceful Uses of Nuclear Energy, is a bilateral agreement between the United States and the United Arab Emirates that was signed in 2009. This agreement facilitates cooperation in the development and utilization of nuclear energy for peaceful purposes, primarily focusing on civilian applications.

Web animation refers to the use of animated graphics and effects on websites and web applications to enhance user experience, engagement, and interaction. It encompasses a variety of techniques and technologies to create movements, transitions, and visual effects that can make web content more dynamic and appealing.

Václav Benda was a Czech dissident and politician, known for his role in the Czechoslovak dissident movement during the communist era. He was born on September 20, 1932, and passed away on June 1, 2017. Benda was a significant figure in the Charter 77 movement, which advocated for human rights and political freedom in Czechoslovakia.

Valentin Parmon is a prominent Russian scientist known for his work in the fields of physical chemistry and catalysis. He has contributed significantly to research on catalysis processes and energy conversion technologies, including the use of solar energy and hydrogen production. Parmon's research often focuses on the development of new catalytic materials and techniques to improve efficiency in chemical reactions, which has implications for various industrial applications, including clean energy solutions.