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Ampicillin resistant Haemophilus influenzae
Ampicillin resistant Haemophilus influenzae (BLNAR, BLPACR; ICD-11 MG50.30): strains resisting ampicillin via TEM-1 or ROB-1 β-lactamases or ftsI/PBP3 mutations, first reported 1972, WHO medium-priority pathogen.
Ample (company)
Ample was a San Francisco company, founded in 2014, whose modular battery-swapping stations charged electric vehicles in about five minutes; it filed for bankruptcy in December 2025.
Ample line bundle
An ample line bundle is a line bundle whose some positive tensor power is very ample, embedding the variety in projective space; it is the standard algebraic positivity notion.
Ampleforth College
Ampleforth College: independent Roman Catholic Benedictine co-educational boarding and day school in North Yorkshire, founded 1803, run by St Laurence Education Trust, ages 11-19, recent Ofsted 'Good' 2023.
Amplexus
Amplexus: the amphibian mating embrace in which a male clasps a female for fertilization, and separately Amplexus Sowerby 1814, an extinct rugose coral genus with type species A. coralloides.
Amplicon sequencing
Amplicon sequencing is a targeted DNA sequencing method in which PCR-amplified genomic loci are sequenced in depth, used for profiling microbial communities and detecting known or rare genetic variants.
Amplience
Amplience is a London-based commerce experience platform, founded in 2008 by James Brooke and Rory Dennis, providing headless content management and digital asset management software for retail.
Amplifi Capital
Amplifi Capital was a London-based consumer-credit fintech, incorporated in 2013, that ran the broker My Community Finance and lender Reevo Money before entering administration in June 2026.
Amplified fragment length polymorphism
Amplified fragment length polymorphism (AFLP), originally named selective restriction fragment amplification, is a DNA fingerprinting method that selectively amplifies restriction-digested DNA for genotyping and microbial typing.
Amplifier
An amplifier, also called an electronic amplifier, is a circuit that uses an external power supply to produce an output signal that is a larger replica of its input.
Amplifier (music)
"Amplifier" is a 2009 Punjabi pop song by the Netherlands-based Dutch-Pakistani singer Imran Khan, the first single from his debut album Unforgettable, which has passed one billion YouTube views.
Amplify Partners
Amplify Partners is a venture capital firm in Menlo Park, California, founded by Sunil Dhaliwal in 2012 to make concentrated early-stage investments in infrastructure, developer tools, data, AI, and cybersecurity software.
Amplify Trading
Amplify Trading, now operating as AmplifyME, is a London-based financial services company founded in 2009 by traders Will de Lucy and Piers Curran, which began as a proprietary trading firm and now runs finance career simulations.
Amplify-and-forward relaying
Amplify-and-forward (AF) relaying is a cooperative wireless technique in which a relay node retransmits a received signal after amplifying it, without decoding the message it carries.
AmplifyBio, LLC
AmplifyBio, LLC was a cell and gene therapy contract research and manufacturing organization in West Jefferson, Ohio, spun out of Battelle in 2021 and led by CEO J. Kelly Ganjei.
Amplitron
The amplitron, also known as the platinotron, is a crossed-field microwave amplifier tube derived from the magnetron, invented by William C. Brown at Raytheon in 1953.
Amplitude
Amplitude is the maximum change in the quantity that varies in a wave, measured from equilibrium, and one of four basic wave characteristics alongside wavelength, frequency, and speed.
Amplitude (Higgs) mode in superconductors
The amplitude (Higgs) mode in superconductors is a collective oscillation of the order parameter's magnitude, the condensed-matter analog of the Higgs boson, now probed by terahertz spectroscopy.
Amplitude amplification
Amplitude amplification is a quantum algorithmic technique, introduced by Brassard, Høyer, Mosca, and Tapp in 2000, that generalizes Grover's search algorithm and delivers a quadratic speedup over classical repetition.
Amplitude damping channel
The amplitude damping channel is a quantum channel modeling energy loss from a qubit to its environment, with the excited state decaying to the ground state with probability γ.
Amplitude Energy
Amplitude Energy Limited, formerly Cooper Energy Limited until its November 2024 renaming, is an Australian oil and gas producer supplying gas to Southeast Australia from the Otway and Gippsland basins.
Amplitude estimation
Amplitude estimation, also known as quantum amplitude estimation, is a quantum algorithm that estimates the probability of a marked subspace, using O(1/ε) queries versus classical O(1/ε²) sampling.
Amplitude modulation
Amplitude modulation, or AM, carries information on a radio wave by varying its strength with the audio signal while the frequency stays fixed; it was the first modulation used for voice broadcasting.
Amplitude versus offset
Amplitude versus offset (AVO) is a seismic analysis technique that measures how reflected wave amplitude changes with source-receiver distance, used as a direct hydrocarbon indicator.
Amplitude versus offset analysis
Amplitude versus offset (AVO) analysis measures how seismic reflection amplitude changes with source-receiver offset, and uses that variation to constrain subsurface rock properties and fluid content, notably free gas.
Amplitude-shift keying
Amplitude-shift keying (ASK) is a digital modulation method that varies a carrier's amplitude while frequency and phase stay fixed, used in short-range radio and optical links.
Amplituhedron
The amplituhedron is a mathematical object introduced in 2013 by physicists Nima Arkani-Hamed and Jaroslav Trnka, whose volume encodes scattering amplitudes of planar N=4 supersymmetric Yang-Mills theory.
Amplyx Pharmaceuticals
Amplyx Pharmaceuticals was a privately held San Diego biotechnology company developing therapies for immunocompromised patients, known for the antifungal drug fosmanogepix; Pfizer acquired it in 2021.
Ampol
Ampol Limited is an Australian transport fuel company founded in 1936, operating the Lytton refinery in Brisbane, about 2,200 retail sites, and the Z Energy business in New Zealand.
Ampoule
An ampoule is a small sealed glass vial containing a single dose of a sample, usually an injectable drug, sealed by fusion and opened by breaking the neck.