Zeta (UK: /ˈziːtə/, US: /ˈzeɪtə/; uppercase Ζ, lowercase ζ; Ancient Greek: ζῆτα, Demotic Greek: ζήτα, classical [d͡zɛ̌:ta] or [zdɛ̌:ta] zē̂ta; Modern Greek: [ˈzita] zíta) is the sixth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 7. It was derived from the Phoenician letter zayin . Letters that arose from zeta include the Roman Z and Cyrillic З.
The word zeta is the ancestor of zed, the name of the Latin letter Z in Commonwealth English. Swedish and many Romance languages (such as Italian and Spanish) do not distinguish between the Greek and Roman forms of the letter; "zeta" is used to refer to the Roman letter Z as well as the Greek letter.
Zeta is a letter of the Greek alphabet. As a letter, zeta is popularly encountered in the names of fraternities and sororities. Zeta is also popularly associated with a famous alien abduction story.
Elam used zeta in reference to the constellation Zeta Persei, in part because of its connection to Perseus, the slayer of the gorgon Medusa, which Elam sees as a metaphor for the modern woman. Zeta would also appear to riff on the alpha, beta, and omega social hierarchies.
The Mobius incorporates dynamic light scattering (DLS) to provide simultaneous DLS measurements in the same scattering volume as PALS measurements. Hydrodynamic radius (Rh, determined by DLS) combines with electrophoretic mobility to calculate zeta potential and net charge.
DYNAMICS - Software for electrophoretic and dynamic light scattering measurements in the Mobius. Calculates electrophoretic mobility, size and size distributions, and determines zeta potential, Debye-Hückel-Henry and effective charge. DYNAMICS also controls Agilent autosamplers and pumps for hands-off analyses of dozens of samples per day. 041b061a72