All articles starting with R
22,461 articles
Registered user
A registered user is a person who has created an account with a computer system or online service, supplying stored identifying information, unlike anonymous or guest visitors.
Registration and publication of treaties under the United Nations Charter
Article 102 UN Charter system requiring Member States to register treaties and international agreements with the Secretariat and their publication in the United Nations Treaty Series; unregistered treaties cannot be invoked before UN organs.
Registration Convention
The Registration Convention (1975) is the UN treaty requiring launching States to register space objects in national registries and report five data items to the UN Secretary-General's public Register; 78 parties, with known gaps in deadlines, transfers, and data.
Registration, Evaluation, Authorisation and Restriction of Chemicals
REACH (Regulation EC 1907/2006) is the EU's main chemicals law, requiring registration of substances above 1 tonne per year with ECHA and providing evaluation, authorisation, and restriction processes; its planned revision was abandoned in 2026.
Registry of Interpreters for the Deaf
Registry of Interpreters for the Deaf (RID): US national certifying body for ASL interpreters, founded 1964 in Muncie, Indiana. Offers NIC (2005) and CDI (1998) certifications, NAD-RID Code of Professional Conduct, EPS grievance system, CASLI testing since 2016, about 13,740 members.
REGISTRY study
REGISTRY was a multi-national European observational study of Huntington's disease run by the European Huntington's Disease Network from 2004 to 2017, with annual assessments of thousands of participants.
Regla Bell
Regla Bell (Regla Maritza Bell McKenzie, born 1970, Havana) is a Cuban volleyball outside hitter who won Olympic gold in 1992, 1996, and 2000, plus World Championship and World Cup titles; Hall of Fame 2024.
Regla Torres
Regla Torres (Regla Radameris Torres Herrera, born 1975, Havana), Cuban middle blocker; three straight Olympic volleyball golds 1992-2000, youngest champion at 17, FIVB Player of the 20th Century, Hall of Fame 2001.
Reglamento y aranceles reales para el comercio libre (1778)
The Reglamento y aranceles reales para el comercio libre was a 1778 regulation of Charles III of Spain that opened trade between Spanish and Spanish American ports.
Règlement Organique of Mount Lebanon
The Règlement Organique (النظام الأساسي لجبل لبنان) was the 1861 Ottoman statute, agreed with five European powers, that created the autonomous Mutasarrifate of Mount Lebanon.
Regnal name
A regnal name, or throne name, is the name a monarch or pope uses during a reign, not necessarily their birth name; covers regnal numbers, UK prerogative, papal renaming since c. 1000, and Chinese era-name usage.
Regolith
Regolith is the layer of loose, fragmented rock material that overlies bedrock, formed by weathering, erosion, transport, or deposition, covering Earth, the Moon, and Mars.
Regor Pharmaceuticals
Regor Pharmaceuticals, publicly known as Regor Therapeutics Group, is a clinical-stage biotech company founded in 2018 and headquartered in Cambridge, Massachusetts, known for its oral GLP-1 drug for obesity and diabetes.
Regor Therapeutics (齐鲁锐格医药)
Regor Therapeutics (齐鲁锐格医药) is a clinical-stage biotechnology company founded in Shanghai in 2018 that develops drugs in oncology, immunology, and metabolism, selling its CDK inhibitor portfolio to Genentech for $850 million in 2024.
Regorafenib
Regorafenib (brand name Stivarga) is an oral multikinase inhibitor developed by Bayer and approved in the United States in 2012 for metastatic colorectal cancer, advanced GIST, and hepatocellular carcinoma.
Regramostim
Regramostim (GMC 89-107) is a recombinant human GM-CSF made in Chinese hamster ovary cells by Sandoz, moderately glycosylated, distinct from sargramostim and molgramostim; studied for neutropenia but never approved.
Regrasping
Regrasping is a robotic manipulation skill in which a robot's hand or gripper changes an object's orientation or grip positions until the desired configuration is reached.
Regress argument (epistemology)
The regress argument, or epistemic regress, is a problem in epistemology holding that every chain of justifying reasons must end in basic beliefs, circle, or continue forever.
Regression (film)
Regression (Regresión) is a 2015 psychological thriller directed by Alejandro Amenábar, starring Ethan Hawke and Emma Watson as a detective and an abuse accuser in 1990 Minnesota.
Regression (psychology)
Regression, or psychological regression, is a return to earlier, infantile patterns of thought or behavior; Freud described it as an unconscious defense mechanism under stress.
Regression analysis
Regression analysis, also known as statistical regression, is a set of statistical methods for estimating the relationship between a dependent variable and one or more predictors.
Regression calibration
Regression calibration is a statistical method for correcting bias from measurement error in a covariate, replacing it with its conditional expectation given the observed data before running the usual regression analysis.
Regression discontinuity design
The regression discontinuity design (RDD), introduced by Thistlethwaite and Campbell in 1960, estimates causal effects by comparing units just above and below a treatment cutoff.
Regression estimator (survey sampling)
The regression estimator, including the generalized regression (GREG) estimator, is a survey sampling estimator of a population total that improves precision by using known auxiliary totals.
Regression kriging
Regression kriging, also called residual kriging, is a hybrid spatial prediction method that fits a regression on covariates and kriges the residuals, widely used in digital soil mapping.
Regression testing
Regression testing is testing performed after software or its environment is modified, checking that unchanged parts still work and that no new defects were introduced.
Regression toward the mean
Regression toward the mean, also called reversion to the mean, is the statistical phenomenon in which an extreme measurement is followed, on average, by a less extreme one.
Regression tree
A regression tree is a statistical and machine-learning method that predicts a continuous outcome by recursively partitioning data into regions and predicting the mean response in each region.
Regressive left
Regressive left: a political epithet coined by Maajid Nawaz in 2012 for liberals who tolerate illiberal ideologies, especially Islamism, in the name of multiculturalism; popularized in 2015 and contested as both critique and snarl word.
Regressive tax
A regressive tax is one whose effective rate falls as income rises, so poorer households pay a larger percentage of income, as with sales and excise taxes.