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  2. Fermion - Wikipedia

    en.wikipedia.org/wiki/Fermion

    All subatomic particles must be one or the other. A composite particle may fall into either class depending on its composition. In particle physics, a fermion is a subatomic particle that follows Fermi–Dirac statistics. Fermions have a half-integer spin (spin ⁠ 1 / 2 ⁠, spin ⁠ 3 / 2 ⁠, etc.) and obey the Pauli exclusion principle.

  3. List of particles - Wikipedia

    en.wikipedia.org/wiki/List_of_particles

    On 4 July 2012, the discovery of a new particle with a mass between 125 and 127 GeV/c 2 was announced; physicists suspected that it was the Higgs boson. Since then, the particle has been shown to behave, interact, and decay in many of the ways predicted for Higgs particles by the Standard Model, as well as having even parity and zero spin, two ...

  4. Vocative case - Wikipedia

    en.wikipedia.org/wiki/Vocative_case

    The vocative is distinct in singular and identical to the nominative in the plural, for all inflected nouns. Nouns with a nominative singular ending in -a have a vocative singular usually identically written but distinct in accentuation. In Lithuanian, the form that a given noun takes depends on its declension class and, sometimes, on its gender.

  5. Phosphorus-32 - Wikipedia

    en.wikipedia.org/wiki/Phosphorus-32

    Dense shielding, such as lead, is less effective due to the high-energy bremsstrahlung produced by the interaction of the beta particle and the shielding. Because the beta radiation from phosphorus-32 is blocked by around 1 m of air, it is also advisable to wear dosimeters on the parts of the body, for example the fingers , which come into ...

  6. Redundancy principle (biology) - Wikipedia

    en.wikipedia.org/wiki/Redundancy_principle_(biology)

    The motion of a particle located at position can be described by the Smoluchowski's limit of the Langevin equation: [11] [12] = + (), where is the diffusion coefficient of the particle, is the friction coefficient per unit of mass, () the force per unit of mass, and is a Brownian motion.

  7. Population balance equation - Wikipedia

    en.wikipedia.org/wiki/Population_balance_equation

    Consider the average number of particles with particle properties denoted by a particle state vector (x,r) (where x corresponds to particle properties like size, density, etc. also known as internal coordinates and, r corresponds to spatial position or external coordinates) dispersed in a continuous phase defined by a phase vector Y(r,t) (which again is a function of all such vectors which ...

  8. Flocculation - Wikipedia

    en.wikipedia.org/wiki/Flocculation

    The most common used coagulant is alum, Al 2 (SO 4) 3 ·14H 2 O. The chemical reaction involved: Al 2 (SO 4) 3 · 14 H 2 O → 2 Al(OH) 3 (s) + 6 H + + 3 SO 2− 4 + 8 H 2 O. During flocculation, gentle mixing accelerates the rate of particle collision, and the destabilized particles are further aggregated and enmeshed into larger precipitates.

  9. Nucleosome - Wikipedia

    en.wikipedia.org/wiki/Nucleosome

    Nucleosome core particles are observed when chromatin in interphase is treated to cause the chromatin to unfold partially. The resulting image, via an electron microscope, is "beads on a string". The string is the DNA, while each bead in the nucleosome is a core particle. The nucleosome core particle is composed of DNA and histone proteins. [29]