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  2. Polyphenol oxidase - Wikipedia

    en.wikipedia.org/wiki/Polyphenol_oxidase

    PPO is listed as a morpheein, a protein that can form two or more different homo-oligomers (morpheein forms), but must come apart and change shape to convert between forms. It exists as a monomer, trimer, tetramer, octamer or dodecamer, [11] [12] creating multiple functions. [13] In plants, PPO is a plastidic enzyme with unclear synthesis and ...

  3. Poly(p-phenylene oxide) - Wikipedia

    en.wikipedia.org/wiki/Poly(p-phenylene_oxide)

    Poly (p-phenylene oxide) ( PPO ), poly (p-phenylene ether) ( PPE ), poly (oxy-2,6-dimethyl-1,4-phenylene), often referred to simply as polyphenylene oxide, is a high-temperature thermoplastic with the general formula (C 8 H 8 O) n. It is rarely used in its pure form due to difficulties in processing. It is mainly used as blend with polystyrene ...

  4. Proximal policy optimization - Wikipedia

    en.wikipedia.org/wiki/Proximal_Policy_Optimization

    PPO is classified as a policy gradient method for training an agent’s policy network. The policy network is the function that the agent uses to make decisions. Essentially, to train the right policy network, PPO takes a small policy update (step size), so the agent can reliably reach the optimal solution.

  5. Health maintenance organization - Wikipedia

    en.wikipedia.org/wiki/Health_maintenance...

    t. e. In the United States, a health maintenance organization ( HMO) is a medical insurance group that provides health services for a fixed annual fee. [ 1] It is an organization that provides or arranges managed care for health insurance, self-funded health care benefit plans, individuals, and other entities, acting as a liaison with health ...

  6. Public-key cryptography - Wikipedia

    en.wikipedia.org/wiki/Public-key_cryptography

    Public-key cryptography, or asymmetric cryptography, is the field of cryptographic systems that use pairs of related keys. Each key pair consists of a public key and a corresponding private key. [1] [2] Key pairs are generated with cryptographic algorithms based on mathematical problems termed one-way functions. Security of public-key ...

  7. List of forms of government - Wikipedia

    en.wikipedia.org/wiki/List_of_forms_of_government

    Term Description Examples Autocracy: Autocracy is a system of government in which supreme power (social and political) is concentrated in the hands of one person or polity, whose decisions are subject to neither external legal restraints nor regularized mechanisms of popular control (except perhaps for the implicit threat of a coup d'état or mass insurrection).

  8. Independent practice association - Wikipedia

    en.wikipedia.org/wiki/Independent_practice...

    v. t. e. In the United States, an independent practice association ( IPA) is an association of independent physicians, or other organizations that contracts with independent care delivery organizations, and provides services to managed care organizations on a negotiated per capita rate, flat retainer fee, or negotiated fee-for-service basis.

  9. List of Java keywords - Wikipedia

    en.wikipedia.org/wiki/List_of_Java_keywords

    By default, the value of boolean primitive type is false. This keyword is also used to declare that a method returns a value of the primitive type boolean. break Used to end the execution in the current loop body. Used to break out of a switch block. byte The byte keyword is used to declare a field that can hold an 8-bit signed two's complement ...