Émile Durkheim (1858–1917) was a French sociologist who is often regarded as one of the founding figures of sociology. He played a crucial role in establishing sociology as a distinct academic discipline, emphasizing the importance of studying social phenomena and collective behavior. Durkheim's work focused on the structures of society and the ways in which social order is maintained.

PET radiotracers, or positron emission tomography radiotracers, are biologically active molecules labeled with a radioactive isotope that emits positrons. These tracers are used in PET imaging, a type of nuclear medicine that provides valuable insights into the metabolic processes of tissues and organs in the body. In PET imaging, a radiotracer is introduced into the body, typically through injection.

(470308) 2007 JH43 is an asteroid in the main belt, a region of space between the orbits of Mars and Jupiter where most of the solar system's asteroids are found. The designation "470308" refers to its catalog number assigned by the Minor Planet Center, while "2007 JH43" is the specific provisional designation given to the asteroid when it was first observed. This designation indicates that it was discovered in the year 2007.

(26375) 1999 DE9 is an asteroid that is part of the asteroid belt between Mars and Jupiter. It was discovered on February 23, 1999, and is classified as a Near-Earth Object (NEO). The object belongs to the Apollo group of asteroids, which are characterized by their orbits that cross Earth's orbit.

(309239) 2007 RW10 is a trans-Neptunian object (TNO) located in the Kuiper Belt, which is a region of the solar system beyond the orbit of Neptune that contains many small icy bodies. It was discovered in September 2007 and is classified as a member of the scattered disk, a group of TNOs that have highly elliptical orbits.

(505448) 2013 SA100 is a designation for a specific asteroid discovered in the asteroid belt. It is classified as a "trans-Neptunian object" (TNO), which generally refers to objects located beyond the orbit of Neptune. The asteroid was identified in 2013, and its numbering (505448) indicates that it has been officially cataloged.

(445473) 2010 VZ98 is a minor planet, specifically classified as a trans-Neptunian object (TNO) in the Kuiper Belt. These objects are located beyond the orbit of Neptune and often have elongated orbits that can take them far from the Sun. Discovered in 2010, this object is part of a population that includes many icy bodies that are remnants from the early solar system.

(471288) 2011 GM27 is a small asteroid that belongs to the main asteroid belt, which is located between the orbits of Mars and Jupiter. It was discovered on April 9, 2011, and is classified as a member of the Apollo group of asteroids, which are characterized by having orbits that bring them close to Earth's orbit.

Contact protection typically refers to measures or devices designed to protect against accidental contact with electrical components, hazardous materials, or other potentially harmful surfaces. This concept is widely applicable in various fields, including electrical engineering, safety protocols, and industrial settings. Here are a few examples of contact protection: 1. **Electrical Safety**: In electrical engineering, contact protection can involve insulation, barriers, or protective covers that prevent users from accidentally touching live wires or components that could result in electric shock.

The demand factor is a concept used in electrical engineering and energy management to assess the maximum demand of electrical loads in a system relative to the total connected load. It is defined as the ratio of the maximum demand of a system (or a particular part of a system) during a specified period to the total connected load of that system.

(543354) 2014 AN55 is classified as a near-Earth object (NEO) and is specifically categorized as an asteroid. It was discovered in January 2014 and is part of the Apollo group of asteroids, which are known for having orbits that cross Earth's orbit. The designation indicates the year of discovery (2014) and the specific number assigned to it by the Central Bureau for Astronomical Telegrams (CBAT) following its discovery.

174567 Varda is a trans-Neptunian object, specifically classified as a centaur. It was discovered on November 24, 2003, and is named after Varda, a character from J.R.R. Tolkien's Middle-earth legendarium. Varda is known as the queen of the stars and is associated with light and beauty. In terms of its physical characteristics, Varda has an estimated diameter of around 30 kilometers (19 miles).

(612584) 2003 QX113 is a trans-Neptunian object located in the Kuiper Belt. It is classified as a centaur, which is a type of minor planet that orbits between the asteroid belt and the outer planets, specifically between Jupiter and Neptune. This designation indicates that it exhibits characteristics of both asteroids and comets.

The Dirichlet problem is a type of boundary value problem that arises in mathematical analysis, particularly in the study of partial differential equations (PDEs). It involves finding a function that satisfies a certain differential equation within a domain, subject to specified values on the boundary of that domain.

As of my last update, the following is a list of celestial objects that are considered potential dwarf planets or have been proposed as such: 1. **Pluto** - The most famous dwarf planet, located in the Kuiper Belt. 2. **Eris** - A distant object also found in the Kuiper Belt, slightly smaller than Pluto but more massive. 3. **Haumea** - Known for its elongated shape and rapid rotation, it resides in the Kuiper Belt.

Cylindrical multipole moments are a mathematical representation used in physics and engineering to describe the distribution of mass, charge, or any other physical quantity in a cylindrical coordinate system. These moments help in analyzing systems with cylindrical symmetry, such as wires, cylinders, or other structures that exhibit similar symmetry properties. ### Definition and Calculation Cylindrical multipole moments extend the concept of multipole moments, which are generally used to describe the spatial distribution of charges or masses in Cartesian coordinates.

Harmonic measure is a concept in mathematical analysis, particularly in potential theory and complex analysis. It is associated with harmonic functions, which are functions that satisfy Laplace's equation. Here are some key points to understand harmonic measure: 1. **Harmonic Functions**: A function \( u \) is harmonic in a domain if it is twice continuously differentiable and satisfies Laplace's equation, i.e., \( \nabla^2 u = 0 \).

Laplace expansion, also known as the Laplace transform, is a mathematical technique used to transform a function of time (often a signal or a system's response) into a function of a complex variable. The Laplace transform is especially useful in engineering and physics for analyzing linear time-invariant systems, particularly in control theory and circuit analysis.

Spherical multipole moments are mathematical constructs used to describe the distribution of charge, mass, or other physical quantities in a system, particularly in the field of electromagnetism and gravitational fields. They extend the concept of electric or gravitational moments beyond the traditional dipole, quadrupole, and higher-order moments to capture more complex arrangements.

Electric power quality refers to the characteristics and attributes of electrical power that affect the performance and reliability of electrical devices and systems. It encompasses various parameters that determine the suitability of the power for consumer applications and the proper operation of electrical equipment. Key aspects of electric power quality include: 1. **Voltage Stability**: This involves maintaining the adequate voltage levels within the recommended range for connected equipment.