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All articles starting with I

13,727 articles

Idecabtagene vicleucel

Idecabtagene vicleucel (ide-cel, BB2121, Abecma) is an autologous anti-BCMA CAR T-cell therapy for relapsed/refractory multiple myeloma; FDA approved March 2021, KarMMa ORR 73%.

IDEF0

IDEF0 is a functional modeling method that shows a system's functions as hierarchical box-and-arrow diagrams, created for the US Air Force ICAM program and standardized by NIST in 1993.

Idelalisib

Idelalisib (Zydelig) is an oral PI3Kδ inhibitor, the first approved PI3K inhibitor, used with rituximab in relapsed CLL; its FL and SLL indications were withdrawn in 2022 over safety and poor confirmatory enrollment.

Idele class group

The idele class group of a global field K is the quotient of the idele group by the diagonal K×, recovering ideal class groups and receiving the reciprocity map.

Idem-Kuva Corona

Idem-Kuva Corona is a 97-km-diameter corona in Sedna Planitia, Venus, named for a Finno-Ugraic harvest spirit, imaged in 3-D by Magellan near Gula Mons and mapped by USGS.

Idemitsu Kosan

Idemitsu Kosan (出光興産) is a Japanese petroleum refiner and wholesaler, the country's second largest after ENEOS, known for its 1953 run of the Iranian oil blockade.

Idempotence

Idempotence is the property of an element e of a ring satisfying e² = e, equivalently e(1 − e) = 0; multiplication by e acts like a projection.

Idempotency

Idempotency is the property of an operation that applying it multiple times has the same effect as applying it once, essential for reliable, retried requests.

Idempotent pipeline

Idempotent pipeline: a data or request pipeline whose reruns over the same input produce the same result, using MERGE/upsert, partition overwrite, checkpointing, and idempotency keys so retries and backfills never duplicate data.

Identification friend or foe

Identification friend or foe (IFF) is a military electronic system in which a coded radar challenge is answered by a transponder asserting a platform is friendly.

Identification key

An identification key is a tool that identifies an unknown organism by leading the user through choices between contrasting statements about its features, ending in a taxon name.

Identification of customary international law

Identification of customary international law is the methodological question of how courts verify a rule of custom exists, codified in the ILC's 2018 Draft Conclusions requiring a general practice accepted as law.

Identifier

An identifier is a programmer-chosen name for a program entity, such as a variable, type, function, or label, treated by the lexical analyzer as one token.

Identik

Identik (later Meisterwerke, Duplik) is a 2009 Asmodee party drawing game by Jacobson and Kohout: one player describes a hidden picture in 90 seconds while others draw it, scored on ten secret criteria; Spiel des Jahres 2010 nominee.

Identitarian movement

The Identitarian movement, or Identitarianism, is a transnational far-right network opposing globalization, immigration, and Islam in Europe, best known through France's Generation Identity and its lambda symbol.

Identity (2003 film)

Identity is a 2003 American psychological thriller directed by James Mangold and starring John Cusack, in which ten strangers stranded at a Nevada motel are killed one by one.

Identity (2025 film)

Identity (ഐഡൻ്റിറ്റി) is a 2025 Malayalam action thriller by Akhil Paul and Anas Khan, starring Tovino Thomas, Trisha, and Vinay Rai; released January 2, 2025, about a sketch artist, a cop, and a face-blind witness.

Identity (mathematics)

In mathematics, an identity is an element that leaves every other element unchanged when combined with it, or an equation, such as a + 0 = a, true for every value of its variables.

Identity (philosophy)

Identity (philosophy): the relation of sameness, divided into qualitative and numerical identity, its logic via Leibniz's Law, and personal identity theories including psychological continuity (Locke), animalism (Olson), and endurantism versus perdurantism.

Identity (social science)

Identity in social science is the self-definition of persons and groups through personal traits and group memberships. Central concepts include Tajfel's social identity theory, self-categorization theory, and Erikson's personal identity.

Identity and access management

Identity and access management (IAM), also called IdM, is the set of processes and technologies organizations use to verify digital identities and control access to resources.

Identity and Democracy

Identity and Democracy (ID Group) was a far-right, Eurosceptic European Parliament political group (13 June 2019 to July 2024), successor to the ENF, uniting RN, Lega and AfD; it dissolved into Patriots for Europe after a funds-misuse investigation.

Identity Card

Identity Card (Arabic: بطاقة هوية) is a 1964 poem by Palestinian poet Mahmoud Darwish, opening "Write down! I am an Arab" and known as a cry of Palestinian defiance.

Identity Cards Act 2006

Identity Cards Act 2006 (c. 15), UK legislation receiving Royal Assent 30 March 2006, created the National Identity Register and a biometric ID card framework; repealed by the Identity Documents Act 2010, with cards invalid from 21 January 2011.

Identity crisis

Identity crisis: Erik Erikson's term for the adolescent psychosocial task of identity versus role confusion, operationalized by James Marcia's exploration and commitment statuses, with critiques, longitudinal findings, and cross-cultural extensions.

Identity disturbance

Identity disturbance: markedly and persistently unstable self-image or sense of self, a DSM-5 criterion of borderline personality disorder, rooted in Erikson's identity diffusion and Kernberg's identity diffusion construct, central to ICD-11 personality pathology severity.

Identity document

An identity document, also known as identity papers, is any document a government recognizes as proof of legal identity, such as a passport, national identity card, or birth certificate.

Identity documents in the United States

Identity documents in the United States: birth certificates, Social Security cards, driver's licenses, passports, and mobile IDs. No national ID card exists; REAL ID (2005, enforced May 7, 2025) and NIST SP 800-63 identity proofing define federal standards.

Identity documents of India

Identity documents of India are official credentials issued by central and state authorities, including Aadhaar, PAN, and voter ID, though most do not by themselves prove Indian citizenship.

Identity Evropa

Identity Evropa (IE) was an American white supremacist, alt-right group founded by Nathan Damigo in March 2016, known for campus fliers, the slogan "You will not replace us," and Unite the Right; rebranded as the American Identity Movement in 2019 and disbanded in November 2020.