Denotes the longer of the two chromosome arms, e.g. human 10q is the long arm of human chromosome 10.
- Browse Related Terms: double crossing-over, isochromosome, metacentric chromosome, p, q, sister chromatid exchange
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- Browse Related Terms: lipofection, q-beta replicase, restriction exonuclease, reverse transcription, Ribose, RNA polymerase, S phase, self-replicating elements, Transcription
- Browse Related Terms: ABT, ABV, ACRS, AFT, AFTR, AGN, ALG, ALTHO, AMD, AOA, AOB, ARND, AVBL, BCM, BCMNG, BFR, BGN, BHND, BLO, BLV, BRF, BTR, BTWN, BYD, CFC, CHGS, CLR, DMSH, DURG, EBND, EFCT, ELSW, ENDG, ERLY, EXCLD, FASTST, FM, FTHR, GEN, GNRL, GRT, GRTST, GTR, HND, HV, HWVR, IMPT, INDC, LN, LRG, LTL, LTR, LTST, MDNGT, METRO, MISC, MISG, MNLY, MR, MSTLY, NBND, NEC, NIL, NLY, NMBR, NR, NWLY, NWRD, NWRN, NXT, OTR, OTRW, OVR, PCT, PRBLY, PSBL, PSBLY, QG, RIOGD, RTRD, RW, SBND, SEWD, SGFNT, SPCLY, SS-, Sun Dog, SVRL, SWWD, SXN, TDA, THRFTR, THRU, THRUT, TIL, TWD, WBND, WL, XCITED, YDA
Quantitative Precipitation Forecast. A spatial and temporal precipitation forecast that will predict the potential amount of future precipitation for a specified region, or area.
- Browse Related Terms: BUFKIT, Bust, Crop Moisture Index, Ensemble Forecast, Ensembles, FVT, Nowcast, Numerical Forecasting, Numerical Weather Prediction, Persistence Forecast, Probability Forecast, QPF, Quantitative Precipitation Forecast, Rainfall, SHRT, TNGT, Vertical Velocity
This HPC forecast discussion is directed completely to explaining manual forecasts of areas in the contiguous 48 states expected to receive 1/4 inch or more precipitation during a 24-hour period. The manual forecasts are explained in terms of initial conditions and differences and/or similarities in the numerical model forecasts. General confidence in the manual forecast is expressed where it is appropriate and possible alternatives may be offered. This product is issued 3 times a day.
- Browse Related Terms: EPCTG, Freezing Drizzle Advisory, Freezing Rain Advisory, Outlook, PFD, QPF Discussion, Synopsis, XCPT, XPC
Quad stands for quadrillion, which is, 1015.
One quadrillion Btu. (1,000,000,000,000,000 Btu)
One quadrillion Btu (1015 Btu). An energy equivalent to approximately 172 million barrels of oil.
- Browse Related Terms: Average megawatt (MWa, aMW), Barrel of oil equivalent, Electrical horsepower, Kilowatt (kW), Kilowatt-hour (kWh), Megawatt (MW), MGD, MMBtu, Nephelometric turbidity unit (NTU), Quad, Steam conversion factors, Therm, Watt
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The recorded occurrence of a species in the area represented by a specific, named U.S. Geological Survey 7.5-minute topographic quadrangle map (quad map). Some State Natural Heritage Programs record the locations of rare species as the name of the quad map on which a species location occurred.
- Browse Related Terms: Clovis Complex, Designated Roads and Trails, GDAs, Indian trust resources, Interpretive site, Known Geothermal Area (KGA), Lease, Off-road vehicle (OHV) designations, Pueblo, Quad-level occurrence, Sacred site, Social disruption, USGS, Water code
- Sampling area, most commonly one square meter, used for analyzing vegetation. A square or rectangular plot of land marked off for the study of plants and animals.
- Browse Related Terms: Amphibian, AUM, behavior, Binomial, Biota, biotope, Candidate Species, Coral Reefs, Desertification, Ecosystem, Epifauna, Fauna, forage, Habitat, Herbivore, Invertebrates, Life cycle, Nutrients, Omnivore, Organic, organism, Point source, Quadrat, Range, Recruitment, Spawning beds, Species, substrate, Toxin, Trophic level, zooplankton
The component of the complex signal that is 90 degrees out of phase with the inphase component. This component lies along the imaginary axis the complex plane.
- Browse Related Terms: LAT, Latitude, longitude, Meridional Flow, Mid-Latitude Areas, Quadrature, Zonal Flow
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A chromosome configuration visible in late prophase and metaphase of the first meiotic division, where four chromosome s are linked by chiasmata. Can occur in autotetraploids when four homologous chromosomes pair, or in diploids as a result of heterozygosity for a reciprocal translocation between two non-homologous chromosomes.
- Browse Related Terms: asynapsis, bivalent, chiasma, diplotene, meiotic analysis, pachynema, pairing, quadrivalent, recombination, Synapsis, synaptonemal complex, terminalization, unequal crossing over, zygonema
The inheritance of alleles in autotetraploids. A genotype AAAa will produce gametes AA, Aa in the ratio 3:1.
- Browse Related Terms: asexual, asexual reproduction, gametic (phase) disequilibrium, gametic (phase) equilibrium, gametogenesis, gametophytic incompatibility, linkage disequilibrium, linkage equilibrium, maturation, meiotic product, oosphere, ovum, quadruplex, reduction division, tautomerism
A category of electric power producer established under the Public Utility Regulatory Policy Act (PURPA) of 1978, that includes small-power producers (SPP) who use renewable sources of energy such as biomass, geothermal, hydroelectricity, solar (thermal and photovoltaic), and wind, or cogenerators who produce both heat and electricity using any type of fuel. PURPA requires utilities to purchase electricity from these power producers at a rate approved by a state utility regulatory agency under Federal guidelines. PURPA also requires power providers to sell electricity to these producers. Some states have developed their own programs for SPPs and utilities.
A power production facility that qualifies for special treatment under the Public Utility Regulatory Policies Act. A qualifying facility must generate its power using cogeneration, biomass, waste, geothermal energy or renewable resources, such as solar and wind. PURPA prohibits utilities from owning majority interest in qualifying facilities.
- Browse Related Terms: Backup electricity, backup services, Backup rate, conservation, Decoupling, Firm power, Independent Power Producer, Investor owned utility (IOU), Public utility commissions, Public utility district (PUD), Public Utility Regulatory Policies Act (PURPA), Publicly Owned Treatment Works Permit (POTW), Qualifying Facility