72,234 articles
ECMO trial
ECMO trial NCT04678518 (MRC-01-20-155), a Hamad Medical Corporation study measuring IL-1, IL-2, IL-6, and TNF before and after ECMO decannulation; found cytokines largely unchanged despite post-decannulation SIRS.
Ecnoglutide
Ecnoglutide (XW003/XW004) is a once-weekly cAMP-biased GLP-1 receptor agonist from Sciwind Biosciences, first approved in China in January 2026 for type 2 diabetes, with obesity trials and an oral formulation in development.
Ecofosbuvir tablets (艾考磷布韦)
Ecofosbuvir tablets (艾考磷布韦, Encofosbuvir Tablets), formerly yiqibuvir, are HEC Sunshine Pharma's class 1 HCV NS5B nucleoside inhibitor prodrug of sofosbuvir, NMPA-approved March 2025 with netanasvir phosphate for genotype 1, 2, 3, 6 chronic hepatitis C.
EcoHealth
EcoHealth, or ecosystem approaches to health, is a transdisciplinary field linking ecosystem health and human well-being; emerged from IDRC work in the 1990s, with the Springer journal EcoHealth founded in 2004 and the IAEH in 2006.
Ecological evolutionary developmental biology
Ecological evolutionary developmental biology, commonly abbreviated Eco-Evo-Devo, is a field of biology that incorporates interactions between an organism's genes, its development, and its environment into evolutionary theory, covering plasticity and niche construction.
Ecological footprint
Ecological footprint: an accounting measure in global hectares of a population's demand on biocapacity, created by Rees and Wackernagel in the early 1990s; distinct from the carbon footprint, which is its largest component, and from planetary boundaries and material footprint.
Ecological functions of flavonoids in plants
Flavonoids are a family of over 9,000 plant secondary metabolites that screen ultraviolet radiation, color flowers, deter herbivores and microbes, and mediate signaling with symbiotic rhizobia.
Ecological network analysis
Ecological network analysis is an ecosystem science method that models who eats whom and at what rate, quantifying flows, cycling, and ascendency in food webs of 6 to 60 compartments.
Ecological niche
Ecological niche: the n-dimensional set of biotic and abiotic conditions allowing a species to persist (Hutchinson's hypervolume). Distinguishes fundamental from realized niche; basis of competitive exclusion, resource partitioning, and species distribution models.
Ecological niche model
An ecological niche model (ENM), also called a species distribution model, relates species occurrence records to environmental variables to predict suitable habitat across space and time.
Ecological pyramid
Ecological pyramid (trophic or Eltonian pyramid): graphical representation of ecosystem trophic structure, producers at base, consumers at apex. Three types: numbers, biomass, energy; only the energy pyramid is always upright.
Ecological role of tube-dwelling polychaetes
Tube-dwelling polychaetes are sedentary marine annelid worms that cement sand and shells into permanent tubes, building reefs such as Sabellaria formations that stabilize sediment, filter large volumes of water, and sometimes foul pipelines.
Ecological roles of ferns
Ferns act as chemical-defended foliage for insects, facultative hosts of root fungi, nitrogen-fixing partners with Azolla in rice paddies, and microclimate engineers that enrich soils and shelter tree seedlings.
Ecological roles of oomycetes
Beyond their roles as plant and animal pathogens, oomycetes live as saprotrophs in soil, freshwater, and marine habitats, decomposing plant litter and chitin-rich animal remains.
Ecological Society of America
The Ecological Society of America (ESA) is a nonprofit professional society of ecologists founded in 1915 in Columbus, Ohio, with over 9,000 members and headquarters in Washington, DC.
Ecological study
An ecological study is an observational epidemiological design in which exposures or outcomes are measured and compared for populations or groups rather than individuals, cheaply using existing data.
Ecological succession
Ecological succession: the change in species, communities, and ecosystems over time after disturbance; primary versus secondary succession; Clements, Gleason, Connell-Slatyer mechanisms, and chronosequence limits.
Ecology
Ecology, the scientific study of interactions between organisms and their environment, spans organism, population, community, and ecosystem levels; named by Haeckel in 1866 and applied today through ecosystem services and conservation agriculture.
Ecology and conservation of cypresses
The ecology and conservation of cypresses concerns small, isolated California stands of fire-adapted conifers whose serotinous cones need fire to open, making fire suppression a conservation threat.
Ecology and conservation of yews (Taxus)
The ecology and conservation of yews covers the genus Taxus, shade-tolerant conifers whose red arils recruit birds as seed dispersers and whose wild populations face browsing, fire, and slow regeneration.
Ecology and habitat of Cycas
The ecology and habitat of Cycas, the largest cycad genus, spans coastal dunes, savanna, rainforest, and limestone karst in the tropics, with insect pollination and fire-tolerant, nitrogen-fixing coralloid roots.
Ecology and habitats of Cladonia lichens
The ecology and habitats of Cladonia lichens cover their growth on soil, wood, and rocks, with reindeer lichen mats building slowly on acidic, nutrient-poor heath and boreal forest soils.
Ecology and reproduction of haircap mosses
Haircap mosses (family Polytrichaceae) are erect, tuft-forming mosses with internal conducting strands that grow taller than most mosses, on soil in forests, mires, and disturbed ground worldwide.
Ecology of coniferous forests
Ecology of coniferous forests is the study of how forests dominated by pines, spruces, firs, and larches initiate, burn, decompose litter, cycle nutrients, and support fungi and soils.
Ecology of filmy ferns
Ecology of filmy ferns (Hymenophyllaceae): over 600 hygrophilous, poikilohydric ferns with one-cell-thick leaves lacking cuticle and stomata; mostly epiphytic in humid tropical montane forests, richest in Central and South America and Southeast Asia.
Ecology of Ganoderma
Ecology of Ganoderma: a genus of 191–400 white rot wood-decaying fungi worldwide, decomposers of woody debris and root/butt rot pathogens of trees and crops, with laccase-dominated lignin degradation and disjunct biogeography.
Ecology of jelly fungi
The ecology of jelly fungi covers wood-decaying basidiomycetes, including saprotrophic Auricularia species and mycoparasitic Tremella, whose gelatinous fruit bodies survive repeated drying and release spores after rain.
Ecology of Marsileaceae
The ecology of Marsileaceae, water clovers and pillworts, is shaped by unreliable wetlands: sporocarps survive decades to a century dry, then germinate within hours of wetting.
Ecology of micro-oligochaetes
The ecology of micro-oligochaetes covers small annelid worms: enchytraeids drive soil decomposition and nutrient cycling, while tubificids rework aquatic sediments and serve as pollution bioindicators.
Ecology of milk-cap fungi (Lactarius and Lactifluus)
Milk-cap fungi, the closely related genera Lactarius and Lactifluus, are ectomycorrhizal basidiomycetes with well over 650 species worldwide, partnering with trees from temperate forests to the tropics.