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Measurement in Biological Definition

Biodiversity

... role of biodiversity 4 Evaluation of biodiversity 4.1 measurement of biodiversity 4.2 Biodiversity: time and space 4.3 Species ... See also Environmental economics Evaluation of biodiversity measurement of biodiversity From the viewpoint previously defined, no single ...

Electrophysiology

... and, in particular, to the electrical recording techniques that enable the measurement of this flow and the potential changes related to them. At the cellular ... as explained previously. Current-clamp recordings allow the detection and measurement of action potentials in excitable cells such as neurons and the beta cells ...

Sociobiology

... predicted by the strategy, and those expressed in a population. measurement of genes and gene-frequencies can also be problematic, because a simple ... can be open to charges of circularity. Circularity can occur if the measurement of gene frequency indirectly uses the same measurements that describe the ...

Diabetes mellitus

... effects of oral hypoglycemic agents vary from type to type and from patient to patient. A useful test that can be done in a doctor's clinic is the measurement of blood HbA1C levels. This is the ratio of glycosylated red blood cells in relation to the total number of red blood cells. Persistent raised ...

Eugenics

... hygiene ." Among other acts, the Nazis performed extensive experimentation on live human beings to test their genetic theories, ranging from simple measurement of physical characteristics to the more ghastly experiments carried out by Josef Mengele for Otmar von Verschuer on twins in the concentration ...

Genomics

... Other applications are in the food and agriculture sectors. The major tools and methods related to genomics are bioinformatics , genetic analysis, measurement of gene expression , and determination of gene function. Contents showTocToggle("show","hide") 1 History 1.1 The growth of ...

Photon

... of the energy quantum being a photon and of it being one of the quasi-particle matter excitations. According to the rules of quantum mechanics, a measurement (here: just observing what happens to the polariton) breaks this superposition; that is, the quantum either gets absorbed in the medium and stays ...

Replication

... of the memory - which usually means, that each node have separate copy (replica) of this page. In statistics replication refers to repeated measurement of a phenomenon, so that the variability can be estimated. In science , this is a synonym for Reproducibility . ...

Trait

... of dominance and extensions to expression of traits Definition of a trait A trait may be any single feature or quantifiable measurement of an organism. However, the most useful traits for genetic analysis are present in different forms in different individuals. A visible trait is ...

X-ray crystallography

... data. It is important to note that even after obtaining crystals suitable for diffraction analysis, current X-ray sources and detectors limit the measurement of only the diffracted photon intensities and not their respective phases, the latter encoding the majority of the information about the actual shape ...
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