biological significance

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biological significance

The significance of the difference between outcomes in a clinical situation determined by the clinician with respect to the patient; biological significance is measured in terms of a biological outcome—e.g., difference in measures such as morbidity or mortality, difference in weight gain, etc.


1. pertaining to biology.
2. a medicinal preparation made from living organisms and their products; these include serums, vaccines, etc.

biological clock
the physiological mechanisms which govern the rhythmic occurrence of certain biochemical, physiological and behavioral phenomena in living organisms. See also biological rhythm.
biological control
control of a parasite by making use of its natural enemies, especially other pests. The target may also be a vector or a reservoir for infection.
biological data
usually comprise a list of vital statistics about an animal or plant species, recording such things as preferred growth medium, temperature and humidity and details of the internal milieu including blood pH, normal blood electrolytes and the like.
biological environment
includes the influence of all biological factors such as warmth, moisture and humidity, but also the plant ecosystem in which the animal lives and the associated populations of vertebrates and invertebrates that may compete for food and space, and may also act as reservoirs for infectious diseases.
biological filters
are used for the treatment of sewage effluent. They comprise a column of stones or plastic pieces which become covered with bacteria which degrade the organic matter in the effluent.
biological significance
is an estimate of the biological importance of a statistical or apparent causal association between two variables, e.g. feed supply and the occurrence of bovine acetonemia. The estimation takes into account the possible biological relationship between the two; an estimate of statistical significance would take only the mathematical relationship into account.
biological value
relationship between the amount of nutrient absorbed and the amount utilized by the body. Expressed as a percentage. Called also BV.
References in periodicals archive ?
In the preceding section, the biological significance of [omega]-oxidation of fatty acids was discussed in the terms of starvation or diabetes.
The problem, Hayslett says, is that many people view the pools as soggy nuisances, "so there's a real disparity in the public's understanding of their biological significance.
Armed with this information, our lab is now investigating the regulation and biological significance of these genes, which may help us to better understand the molecular and biochemical basis of tumor cell progression and possibly contribute to identifying new therapeutic targets for disease intervention.
Mr Perry said Berkswell Council also claimed the hedgerow was of biological significance and should not be removed, but Solihull engaged professional biologists and ecologists and their reports supported the development and the removal of the hedgerows.
The forest's biggest supporters are scientists who recognize the area's unique biological significance.
Professor Beale concluded his report to the Auckland City Council, "With regard to cellphone repeater sites, the likely maximum exposure level near a typical site of around 4 microwatts/square centimetre affords a reasonable margin of safety relative to known biological effects of continuous RF/MW fields, including athermal effects of uncertain biological significance.
This is a sensational window into the thinking of the Clinton brain trust, a term that has more political than biological significance.
Globally, high-altitude habitats have received a disproportionate share of protective efforts, while others of greater biological significance (such as lowland forests, wetlands, and most aquatic ecosystems) have been neglected.
They cover the extracellular matrix molecules and their importance in pathobiology and signaling; the function of glycans; the structure, pathobiology, and signaling of proteoglycans; the biological significance of matrix proteinases in health and disease; extracellular matrix cell surface receptors, insights into the folding, assembly, and functions of collagen; emerging aspects in the extracellular matrix pathobiology; and targeting the tumor microenvironment at the extracellular matrix level.

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