All articles starting with M

Mixed state

A mixed state in quantum mechanics is a statistical ensemble of pure states with probabilities p_i, described by a density matrix; it differs fundamentally from a quantum superposition.

Oct 21, 2026

Mixed team (MIX): Olympic designation for teams with members from two or more nations, allowed until 1908 and at Youth Olympic Games; also means mixed-gender team events like figure skating's Team, Mixed.

Mixed Up (The Cure album)

Mixed Up is the Cure's remix album, released 20 November 1990 on Fiction/Elektra, collecting extended mixes of hits, re-recorded "The Walk" and "A Forest", and the new song "Never Enough"; remastered and expanded by Robert Smith in 2018.

Oct 20, 2026

Mixed use area

Mixed use area: a planning zone allowing residential, commercial, office, and other uses together, vertically or horizontally. Also called mixed land use; reversed early 20th-century US single-use zoning, with internal trip capture rates of 7–47 percent.

Mixed volume

Mixed volume is a multilinear extension of volume to convex bodies, defined as a coefficient of the volume polynomial; it is central to convex geometry.

Mixed-case palletizing

Mixed-case palletizing is the process of building stable outbound pallets from random, unsequenced cases of many SKUs, sizes, and weights, a long-standing goal of warehouse automation.

Oct 22, 2026

Mixed-dimensional van der Waals heterostructures

Mixed-dimensional van der Waals heterostructures are layered systems combining 2D materials like graphene with quantum dots, nanowires, or bulk crystals via van der Waals forces.

Mixed-gender band

Mixed-gender band: a musical group with both male and female members, also called mixed-sex or co-ed band. Rare in rock and metal (about 3-6% of radio acts), more common in folk, Latino, and dance genres.

Oct 22, 2026

Mixed-halide perovskite MAPb(I1-xBrx)3

MAPb(I1−xBrx)3 is a mixed-halide lead perovskite whose bandgap is tuned continuously between MAPbI3 and MAPbBr3, widely used in perovskite-silicon tandem solar cells despite light-induced phase segregation, the Hoke effect.

Mixed-initiative interaction

Mixed-initiative interaction is a strategy from 1990s human-computer interaction research in which humans and computers each take the initiative at different times as a task unfolds.

Mixed-integer nonlinear programming

Mixed-integer nonlinear programming (MINLP), or integer nonlinear programming, is an optimization method for nonlinear problems in which some variables are restricted to integer values, making it NP-hard.

Mixed-integer optimization

Mixed-integer optimization is a family of mathematical optimization methods for problems combining continuous variables with integer or discrete values, solved by branch-and-bound and cutting planes over relaxations.

Mixed-integer quadratic programming

Mixed-integer quadratic programming (MIQP) is an optimization method that minimizes a quadratic objective subject to linear constraints, where some variables must take integer values and others stay continuous.

Mixed-ish

Mixed-ish is an ABC family sitcom (2019-2021), a prequel spin-off of black-ish created by Kenya Barris, Tracee Ellis Ross, and Peter Saji, following 12-year-old Rainbow Johnson in 1985 as her mixed-race family leaves a hippie commune for the suburbs; two seasons, 36 episodes, canceled May 2021.

Mixed-matrix membrane

A mixed-matrix membrane (MMM) is a composite separation membrane combining a polymer matrix with inorganic fillers such as zeolites and MOFs, studied for gas separation, water treatment, and pervaporation.

Mixed-member proportional representation

Mixed-member proportional representation (MMP), also called the Additional Member System, is a compensatory mixed electoral system used in Germany since 1949 and New Zealand since 1996, combining district seats with party-list seats for proportional outcomes.

Oct 22, 2026

Mixed-metal metal–organic frameworks

Mixed-metal metal–organic frameworks (MM-MOFs), also called bimetallic or multivariate MOFs, contain at least two different metal ions as nodes, combining electronic, magnetic, and geometric properties.

Mixed-mode chromatography

Mixed-mode chromatography is a liquid chromatography technique in which one stationary phase provides two or more retention mechanisms, typically reversed-phase combined with ion exchange, tuned by pH, salt, and solvent.

Mixed-mode fracture

Mixed-mode fracture is crack growth under a combination of fracture modes, mode I opening, mode II sliding, and mode III tearing; real structural cracks are rarely loaded in a single pure mode.

Mixed-phase cloud

A mixed-phase cloud is a cloud containing supercooled liquid droplets and ice crystals together, found from the tropics to the poles and important for precipitation and climate.

Mixed-phenotype acute leukemia

Mixed-phenotype acute leukemia (MPAL), also called biphenotypic or ambiguous-lineage leukemia, is a rare acute leukemia (2-5% of cases) with both ALL and AML features, treated mainly with ALL-like induction plus transplant.

Mixed-precision training

Mixed-precision training runs most neural network arithmetic in low-precision formats while keeping master weights in higher precision, gaining speed and memory; DeepSeek-V3 pre-trained 14.8T tokens in FP8.

Mixed-sex education

Mixed-sex education, also called coeducation, is teaching males and females together in the same schools and classrooms. It spread broadly in the 1960s-1970s; controlled research shows mostly trivial differences from single-sex schooling.

Oct 21, 2026

Mixed-type autoimmune hemolytic anemia

Mixed-type autoimmune hemolytic anemia, or mixed AIHA, is a rare form of autoimmune hemolytic anemia where warm IgG and cold IgM autoantibodies together destroy red blood cells.

Mixed-use development

Mixed-use development combines residential, commercial, and other uses in one building, block, or neighborhood, reversing 20th-century single-use zoning; evidence links it to more walking, internal trip capture, and transit-oriented housing policy.

Mixer (service)

Mixer, also known as Beam, was a Microsoft-owned live game-streaming service launched in 2016, known for sub-second latency, and shut down in July 2020 after failing to compete with Twitch.

Mixer-wagon

Mixer-wagon (feed mixer wagon, diet feeder): trailer, truck-mounted, or self-propelled machine that weighs, cuts, mixes, and delivers total mixed rations to cattle; vertical, horizontal-auger, and reel types, 5–45 m³ chambers, mixing accuracy affects milk yield.