Moment-generating functionIn probability theory and statistics, the moment-generating function of a real-valued random variable is an alternative specification of its probability distribution. Thus, it provides the basis of an alternative route to analytical results compared with working directly with probability density functions or cumulative distribution functions. There are particularly simple results for the moment-generating functions of distributions defined by the weighted sums of random variables.
Magnetic fieldA magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. A permanent magnet's magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets.
MinoritarianismIn political science, minoritarianism (or minorityism), is a neologism for a political structure or process in which a minority group of a population has a certain degree of primacy in that population's decision making, with legislative power or judicial power being held or controlled by a minority group rather than a majority that is representative of the population. Minoritarianism is most often applied disparagingly to processes in which a minority is able to block legislative changes in the presence of supermajority threshold requirements.
Cultural expressionsCultural expressions are creative manifestations of the cultural identities of their authors. They are treated in the international legal system in terms of cultural rights, intellectual property law and international trade. The objective of the 2005 Convention on the Protection and Promotion of the Diversity of Cultural Expressions is, as its title indicates, to protect and promote the diversity of cultural expressions.
