All articles starting with N
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Nutrient cycle
Nutrient cycle (biogeochemical cycle): circulation of elements like carbon, nitrogen, phosphorus, and sulfur through atmosphere, soil, water, rocks, and organisms; nitrogen and phosphorus cycles are human-disrupted and a transgressed planetary boundary.
Nutrient film technique
The nutrient film technique (NFT) is a hydroponic method in which a thin film of nutrient solution flows past exposed plant roots in sloped channels, without any solid growing medium.
Nutrient management
Nutrient management: agricultural practice of managing the amount, source, timing, and placement of fertilizers and manure (the 4Rs) to meet crop needs while limiting water pollution, GHG emissions, and input costs.
Nutrient spiraling
Nutrient spiraling is the cycling of nutrients in streams and rivers, where uptake and mineralization combine with downstream transport to trace a spiral path, formalized in 1981.
Nutrition
Nutrition: the science of nutrients (protein, fat, carbohydrate, vitamins, minerals, water) needed for health, plus WHO dietary guidance, global malnutrition figures, dietary guidelines, and history from Lind's 1747 scurvy trial onward.
Nutrition facts label
Nutrition Facts label, the FDA-mandated per-serving nutrition panel on U.S. packaged foods, created by the 1990 NLEA, debuted 1994, updated 2016 with added sugars and vitamin D; front-of-package Nutrition Info box proposed 2025.
Nutrition Policy
Nutrition policy comprises government guidelines, laws, and programs for food supply and healthy diets, from the US Dietary Guidelines for Americans (10th edition, 2025-2030) to WHO global reviews and food-based dietary guidelines in over 100 countries.
Nutrition research
Nutrition research studies how diet, foods, and nutrients affect health, using cohort studies, randomized controlled trials, and mechanistic work; RCT and cohort estimates agree on average (ratio of risk ratios 1.09) but differ when exposures mismatch.
Nutrition screening
Nutrition screening is a rapid clinical process that identifies malnourished or at-risk patients and decides who needs full assessment, required within 24 hours of hospital admission.
Nutrition Therapy
Nutrition therapy, or medical nutrition therapy (MNT), is a personalized nutrition-based treatment plan, typically delivered by a registered dietitian nutritionist, for conditions such as diabetes, kidney disease, malnutrition, obesity, and cancer; Medicare Part B covers it for diabetes and renal disease.
Nutritional programming
Nutritional programming is the process by which nutrition supplied during a restricted early-life window produces lasting changes in an animal's growth, metabolism, reproduction, and health, rooted in the DOHaD hypothesis.
Nutritional Requirements
Nutritional requirements: amounts of food substances an organism needs for healthy life, quantified via reference values such as the US-Canada RDA/DRI, WHO/FAO RNI, and EFSA PRI, set at roughly two standard deviations above the average requirement.
Nutritional Status
Nutritional status, also called nutrition status (MeSH D009752), is the body's state relative to nutrient consumption and utilization, assessed through anthropometric, biochemical, clinical, and dietary methods and monitored by WHO, FAO, and UNICEF surveillance systems.
Nutritional Support
Nutritional support (artificial feeding) is providing nutrients by enteral tube feeding or intravenous parenteral nutrition to patients who cannot eat enough; MeSH D018529, introduced 1995, excludes fluid therapy.
Nutritional yeast
Nutritional yeast (nooch) is deactivated Saccharomyces cerevisiae grown on molasses, killed by heat, sold as savory vegan seasoning; complete protein, fortified with B12, no leavening power.
Nutritionist
Nutritionist: a professional applying food and nutrition science to promote health and treat disease; distinct from the legally protected title dietitian in the US, UK, and Australia, but regulated in Malaysia, Indonesia, and Singapore.
Nuts (1987 film)
Nuts (1987) is a Martin Ritt courtroom drama starring Barbra Streisand as Claudia Draper, a call girl fighting a competency ruling, based on Tom Topor's play; Richard Dreyfuss co-stars, Warner Bros. released it November 20, 1987, grossing $30,950,002 domestically.
Nuts (magazine)
Nuts was IPC Media's British weekly lads' magazine, the UK's first mainstream men's weekly, launched 22 January 2004 with Nell McAndrew and closing in April 2014 after 526 issues; it rivaled Zoo weekly and peaked above 300,000 copies.
Nuttallburg Coal Mining Complex and Town Historic District
Nuttallburg Coal Mining Complex and Town Historic District, NRIS 07000846, is a preserved coal mine and company town in New River Gorge, West Virginia, founded by John Nuttall in 1870, leased by Henry Ford in the 1920s, closed in 1958, and NPS-managed since 1998.
Nutty Professor II: The Klumps
Nutty Professor II: The Klumps is a 2000 American romantic comedy sequel directed by Peter Segal, starring Eddie Murphy as nearly the whole Klump family, with Janet Jackson as his co-star.
Nutty Putty Cave
Nutty Putty Cave, a hydrothermal limestone cave near Elberta, Utah County, Utah, discovered in 1960 by Dale Green; sealed with concrete in December 2009 after John Edward Jones died trapped upside down, his body unrecovered inside.
Nuu-chah-nulth oral literature
Nuu-chah-nulth oral literature is the body of stories, songs, and family histories transmitted by speech among the Nuu-chah-nulth nations of western Vancouver Island, British Columbia, a people formerly called the Nootka.
Nuuk
Nuuk (Godthåb) is the capital and largest city of Greenland, founded in 1728, with about 20,400 residents, a 2,200 m international airport opened in 2024, and the seat of the Inatsisartut parliament.
Nuuk Airport
Nuuk Airport (IATA: GOH), also known as Godthåb Airport, is the international airport of Nuuk, Greenland's capital, opened in November 2024 with a new 2,200-meter runway.
Nuun Ujol Chaak
Nuun Ujol Chaak, also known as Shield Skull, was a Maya king of Tikal who reigned until around 679 CE and was the father of Jasaw Chan K'awiil I.
Nuvaira, Inc. (company)
Nuvaira, Inc., formerly Holaira and Innovative Pulmonary Solutions, is a Minneapolis medical device company founded in 2008 developing the dNerva Lung Denervation System, a catheter-based COPD treatment approved in Europe but investigational in the United States.
Nuvakchin Dorsa
Nuvakchin Dorsa is a ridge system (dorsa) on Venus, about 2,200 km across in the planet's southern hemisphere, named for the Hopi snow maiden kachina.
Nuvation Bio
Nuvation Bio Inc. is an oncology-focused biopharmaceutical company founded by David Hung, listed on the NYSE as NUVB since 2021, whose drug IBTROZI (taletrectinib) won FDA approval in 2025.
Nuveen
Nuveen is the asset management arm of the American financial services company TIAA, headquartered in Chicago. Founded in 1898, it manages about $1.4 trillion and ranks among the largest municipal bond managers.
Nuvemshop
Nuvemshop, known as Tiendanube in Spanish-speaking markets, is a Latin American e-commerce platform founded in Buenos Aires in 2011, serving about 180,000 brands across five countries.