Science
1254 verified facts in this category, showing 1001–1100.
- The FDA's updated 'healthy' label criteria require foods to contain low amounts of saturated fat, sodium, and sugar.
- Glycemic load is categorized as low at 1–10, medium at 11–19, and high at 20 or more.
- The 2010 Dietary Guidelines for Americans introduced the concept of healthy eating patterns, which was represented by the MyPlate icon in 2011.
- 'The history and future of dietary guidance in America' was accepted for publication on December 20, 2017, but was not published until April 7, 2018.
- Under the U.S. Endangered Species Act, 1,173 species have recovery plans.
- Recovery plans under the Endangered Species Act must include objective, measurable criteria that, when met, would result in a determination that the species should be delisted.
- Recovery plans under the Endangered Species Act may be developed for the simultaneous recovery of several listed species that share a habitat or ecosystem, rather than for only one species at a time.
- Maxwell, Lau, and Howard propose Bayesian statistics and meta-analysis as solutions to power problems associated with single-study replications in psychology.
- The Open Science Foundation (OSF) and the Society for Improving Psychological Science (SIPS) created opportunities for researchers to develop stronger research practices and share replication results.
- The 100 studies replicated by the Reproducibility Project had originally been published in 2008 in Psychological Science, the Journal of Personality and Social Psychology, and the Journal of Experimental Psychology: Learning, Memory, and Cognition.
- In the Reproducibility Project, original study authors reviewed the materials and methods used by replication teams to help reproduce the original experiments as closely as possible.
- In August 2015, the journal Science published the results of the Reproducibility Project, which attempted to replicate 100 experimental and correlational psychology studies.
- Genetic sex is established when a sperm fertilizes an egg, after which hundreds of genes guide gonadal differentiation and the subsequent hormonal development of internal and external genitalia.
- The first official paper on the MIND diet was published in 2015.
- Oxygen needs for supplemental oxygen therapy are reviewed every 2 to 3 months.
- Split-dose colonoscopy preparation typically involves drinking a half-gallon of liquid laxative the evening before the procedure and another half-gallon about 6 hours before the appointment.
- The Dietary Guidelines for Americans recommend obtaining approximately 45%–65% of total daily calories from carbohydrates.
- Lecanemab-irmb (Leqembi) is given by intravenous infusion every two weeks for 18 months, after which it may be administered every two or four weeks.
- On Nov. 4, 2022, the Centers for Disease Control and Prevention released an updated guideline for clinicians treating adult outpatients with short- and long-term pain, replacing its 2016 Guideline for Prescribing Opioids for Chronic Pain.
- A 155-pound person burns more than 360 calories during 30 minutes of high-impact step aerobics.
- According to Mayo Clinic, adults up to age 70 should aim for 600 IU of vitamin D daily, while adults older than 70 should aim for 800 IU.
- In the Da Qing Diabetes Prevention Study, after up to 30 years of follow-up, 540 of 576 participants (94%) were assessed for outcomes, including 135 control-group and 405 intervention-group participants.
- In 1986, 33 clinics in Da Qing, China, were randomly assigned to control or to diet, exercise, or combined diet-and-exercise interventions for 577 adults with impaired glucose tolerance.
- Higher daily step counts were associated with lower all-cause death rates among both men and women, younger and older adults, and white, black, and Mexican-American adults.
- The 29-site sample examined by David Meltzer's team included archaeological sites in Greenland, Germany, and Belgium.
- The 29-site sample examined by David Meltzer's team included Clovis sites in North America.
- Willard Libby received the Nobel Prize in 1960 for his discovery of radiocarbon dating.
- In the late 1940s, University of Chicago chemist Willard Libby proposed calculating an object's age from its carbon-14 content or the carbon-14 content of surrounding material.
- Greenland Ice Sheet Project 2 (GISP-2) was completed the year after GRIP, at a site 30 km (19 miles) west of the GRIP site.
- The Atlantic Meridional Overturning Circulation (AMOC) transports warm water and life-supporting nutrients from the tropics to the North Atlantic.
- The Ring of Fire is a chain of volcanoes and earthquake zones formed primarily where the Pacific tectonic plate converges with surrounding plates, driven mainly by subduction at convergent plate boundaries.
- Exposing lunar water to electrical currents splits it into oxygen and hydrogen.
- NOAA NCEI's ENSO indicators include sea-surface temperature (SST), outgoing longwave radiation (OLR) and the Southern Oscillation Index (SOI).
- The NCEP document titled 'ENSO: Recent Evolution, Current Status and Predictions' is updated every Monday.
- The NOAA/NCEI ENSO SST Indicators Guide cites the Relative Oceanic Niño Index (RONI) as a comparison tool for El Niño and La Niña events.
- The interannual variation used for NOAA sea-level anomaly calculations is derived by removing both the long-term trend and the average seasonal cycle from the monthly mean sea level.
- Fossil preparation is considered an integral part of the science of paleontology.
- Elevation Science Institute prepares fossils and repositories at the Cincinnati Museum Center, Museum of Natural History and Science.
- Software for automatically collecting dental microwear data has improved markedly in recent years.
- As of 2025, the polarization signal from primordial gravitational waves has not been detected by BICEP or the Keck Array.
- A beam dump experiment directs a high-energy beam of particles into a dense target called a 'dump'.
- The Barton's pendulums experiment demonstrates the physical phenomenon of resonance.
- Barton's pendulums experiment was first demonstrated by Prof Edwin Henry Barton FRS FRSE.
- George Atwood invented the Atwood machine as a laboratory experiment to verify the mechanical laws of motion with constant acceleration.
- The Atwood machine was invented in 1784 by English mathematician George Atwood.
- An adiabatic invariant is a property of a physical system that stays approximately constant when changes to the system occur slowly.
- 3-j symbols and Clebsch–Gordan coefficients address the same physical problem of adding angular momenta, but 3-j symbols do so with more symmetry.
- Wigner's 3-j symbols, also called 3-jm symbols, are used in quantum mechanics as an alternative to Clebsch–Gordan coefficients for adding angular momenta.
- The notation "+ h.c." is used as a shorthand to omit writing out half of the terms actually present in an expression.
- The abbreviation '+ h.c.' stands for 'plus the Hermitian Conjugate'.
- Scientists attribute belief in cryptids partly to misinterpretation of folklore stories.
- Cryptozoologists are criticized for not following the scientific method when investigating alleged cryptids.
- Cryptozoologists do not follow the scientific method when investigating animals most scientists believe are unlikely to have existed.
- Cryptozoology is classified as a pseudoscience by mainstream science.
- Cenograms were introduced in 1964 by J.A. Valverde.
- Biozones and lithostratigraphic units represent two different ways of classifying geological strata.
- Paleontology includes the study of body fossils, tracks, burrows, cast-off parts, fossilised feces, palynomorphs, and chemical residues.
- In paleontology, fossilised feces are known as coprolites.
- Palynomorphs (fossilized pollen and spores) are studied as part of paleontology.
- The word 'paleontology' is derived from Ancient Greek words meaning 'ancient' and terms describing relatedness and a field of study.
- Ball lightning is usually associated with thunderstorms.
- Hilbert's problems are a list of 23 unsolved mathematical problems published by David Hilbert in 1900.
- David Hilbert formulated a list of problems known as Hilbert's problems to direct future mathematical research.
- Felix Klein proposed the Erlangen program as an agenda for progress in mathematics.
- The Langlands program is an example of an agenda proposing future directions for mathematics.
- The Mathematics Subject Classification includes a section numbered 01Axx titled 'History of mathematics and mathematicians'.
- The Millennium Prize Problems are an example of a mathematical research agenda aimed at directing future progress.
- Felix Klein proposed a research agenda known as the Erlangen program.
- The EPR paradox was proposed about fifty years before Aspect's 1982 experiment.
- Aspect's experiment produced its result in 1982.
- The Antiproton Decelerator started operation in the year 2000.
- The Antiproton Decelerator (AD) is a storage ring at the CERN laboratory near Geneva.
- In the Afshar experiment, laser-generated light passes through two closely spaced pinholes.
- The Afshar experiment was devised and carried out by Shahriar Afshar in 2004.
- The ANNIE detector was upgraded for full science operation in July 2019, and data collection began in 2020.
- Phase I of ANNIE, which involved mapping the neutron background, was completed in 2017.
- The neutrino beam used by ANNIE originates at Fermilab, where the Booster delivers 8 GeV protons to a beryllium target, producing secondary pions and kaons.
- The suggested location for ANNIE is the SciBooNE hall on the Booster Neutrino Beam associated with the MiniBooNE experiment.
- The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a water Cherenkov detector experiment designed to examine the nature of neutrino interactions.
- Natural experimental studies exist as a distinct type of experimental study.
- Natural experiments exist as a type of experimental study distinct from controlled experiments.
- The Alais meteorite fell in multiple fragments that together weighed 6 kg.
- The Alais meteorite fell near Alès, France, in 1806.
- The Rosalind Franklin rover is tasked with searching for biosignatures and biomarkers on Mars.
- Many scientific proposals have been made for different stages of the abiogenesis process.
- Abiogenesis is the natural process by which life arises from non-living matter, such as simple organic compounds.
- Astrobiology investigates deterministic conditions and contingent events related to life in the universe.
- The behaviors modeled by quantum mechanics have been described as counterintuitive.
- In quantum mechanics, physical observable values are more precisely described as spectral values of linear operators in Hilbert space.
- Hilbert spaces are a kind of linear space used in quantum mechanics.
- The desire to resolve inconsistencies between observed phenomena and classical theory led to the development of quantum mechanics.
- Classical physics is still used in much of modern science and technology despite the development of quantum mechanics.
- The article "Cognitive Neuroscience and the Study of Memory" was authored by Brenda Milner, Larry R. Squire, and Eric R. Kandel.
- The paper 'The h-principle and the equations of fluid dynamics' surveys recent results concerning both compressible and incompressible Euler equations.
- The 1928 article 'Reasons for Optimism in the Care of the Sick' is cited by a 2019 paper titled 'Homeostasis in the History of Aging Research,' published on pages 1–5.
- The CDC recommends at least 150 minutes per week of brisk walking or similar physical activity—about 30 minutes a day, five days a week—for diabetes prevention.
- D. Mayo's article "Some surprising facts about (the problem of) surprising facts" originated from the Düsseldorf Conference held in February 2011.
- The study on asymptotic giant branch stars in Sextans A was published in the Astrophysical Journal.
- The study examined about six stars using the low-resolution spectrometer on Webb's Mid-Infrared Instrument (MIRI).
- The meta-analysis on glucose control in critically ill adults was registered under PROSPERO number CRD42021278869 and funded by the Australian National Health and Medical Research Council, among others.