| ALI | acute lung injury; annual limit of intake; average lobe index |
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| ADI | Academy of Dentistry International; acceptable daily intake; AIDS-defining illness; allowable daily ... |
| DPI | daily permissible intake; days post inoculation; dietary protein intake; diphtheria-pertussis immuni... |
| ADL | activities of daily living; Amsterdam Depression List; annual dose limit |
| LCL | Levinthal-Coles-Lillie [body]; lower confidence limit; lower control limit; lymphoblastoid cell line... |
| ATP | Annual Transmission Potential |
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| ADI | Acceptable Daily Intake |
| ADFI | Average daily feed intake |
| CSFII | Continuing Survey of Food Intake by Individuals |
| DRI | Dietary Reference Intake |
| acceptable daily intake | <pharmacology> This is an estimate of the amount of a substance in food that can be ingested daily over a lifetime by humans without appreciable health risk. The concept of the acceptable daily intake has been developed principally by who and FAO and is relevant to chemicals such as additives to foods, residues of pesticides and veterinary drugs in foods. Acceptable daily intakes are derived from laboratory toxicity data, and from human experiences of such chemicals when this is available, and incorporate a safety factor. The acceptable daily intake is thus an estimate of the amount of a substance in food that can be ingested over a lifetime by humans without significant risk to health (for contaminants in food and drinking water, tolerable intakes - daily or weekly - are used). See: tolerable daily intake. (15 Jan 1998) |
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| tolerable daily intake | TDIs are applied to chemical contaminants in food and drinking water. The presence of contaminants is unwanted and they have no useful function, differing from additives and residues where there is or was deliberate use resulting in their presence. TDIs are calculated on the basis of laboratory toxicity data with the application of uncertainty factors. A TDI is therefore an estimate of the amount of a substance (contaminant) in food or drinking water that can be ingested daily over a lifetime without a significant health risk. (09 Oct 1997) |
| energy intake | Total number of calories taken in daily whether ingested or by parenteral routes. (12 Dec 1998) |
| annual | <biology, plant biology> Describes a plant or other organism that completes its whole life cycle in one year Occuring yearly. (09 Oct 1997) |
| annual reports | Annual statements concerning the administrative and operational functions of an institution or organization. (12 Dec 1998) |
| mean annual increment | The annual average growth rate for a tree, computed over its entire life cycle. (05 Dec 1998) |
| excess annual growth | The amount by which new forest growth exceeds removal in a year. The annual quantity of wood produced in a forest in excess of market demand. (05 Dec 1998) |
| Abbe limit | <physics> Ernst Abbe's specification for the limit of resolution of a diffraction-limited micro-scope. According to Abbe, a detail with a particular spacing in the specimen is resolved when the numerical aperture of the objective lens is large enough to capture the first-order diffraction pattern produced by the detail at the wavelength employed. See: Rayleigh criterion, Sparrow limit. (05 Aug 1998) |
| beta limit | <radiobiology> if the plasma pressure in a tokamak becomes too high, the so-called ballooning modes become unstable and lead to a loss of confinement (sometimes catastrophic, sometimes not). The exact value at which this occurs depends strongly on the magnetic field B, the plasma minor radius a, and the toroidal plasma current I, such that maximum value of the normalised beta, beta_N=betaBa/I, is around 4% (with B in Teslas, a in metres, and I in Mega-amperes). The exact value depends on details of the plasma shape, the plasma profiles, and the safety factor. Synonym: troyon limit. (09 Oct 1997) |
| visibility, limit of | <microscopy> For the normal eye, the limit of visibility is considerably below the limits of resolution. It depends largely on contrast and intensity of illumination. (05 Aug 1998) |
| central limit theorem | The sum (or average) of n realizations of the same process, provided only that it has a finite variance, will approach the gaussian distribution as n becomes indefinitely large. This theory provides a broad warrant for the use of normal theory even for nongaussian data. In the form stated here, it constitutes the classical version; more general versions allow serious relaxation of the usual assumptions. (05 Mar 2000) |
| permissible exposure limit | An occupational health standard to safeguard workers against dangerous contaminants in the workplace. (05 Mar 2000) |
| control limit | A regulatory value applied to the airborne concentration in the workplace of a potentially poisonous substance which is judged to be reasonably practicable for the whole spectrum of work activities and which must not normally be exceeded. (09 Oct 1997) |
| Hayflick's limit | <cell culture> The limit of human cell division in subcultures; such cells will divide only about 50 times before dying out. (05 Mar 2000) |
| proportional limit | The greatest stress that a material is capable of sustaining without any deviation from proportionality of stress to strain (Hooke's law). (05 Mar 2000) |
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