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Glossary Term
A measure of the correlation of two variables X and Y measured on the same object or organism, that is, a measure of the tendency of the variables to increase or decrease together. It is defined as the sum of the products of the standard scores of the two measures divided by the degrees of freedom.
Tests
The determination of the organisms that are not assigned to the species level but are assigned to the Peptostreptococcus genus level in a sample.
Glossary Term
Any of the 99 numbered points that divide an ordered set of scores into 100 parts each of which contains one-hundredth of the total.
Article
Research record from Clin Chim Acta, 2026-03-07. PMID 41802583.
Article
Research record from J Clin Microbiol, 2026-09-25. PMID 42788753.
Glossary Term
Quantity of dimension one used to express on a scale from 0 to 14 the amount-of-substance concentration of hydrogen ion of dilute aqueous solution, calculated as the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter.
Partner
DiaSys lists phénix in its distributor directory for Chad.
Tests
The determination of the amount of the phenmetrazine in a sample.
Indicators
A long-acting barbituric acid derivative with antipsychotic property. Phenobarbital binds to and activates the gamma-aminobutyric acid (GABA)-A receptor, thereby mimicking the inhibitory actions of GABA in the brain. The activation effects of the phenobarbital-receptor-ionophore complex include increased frequency of chloride channel openings, membrane hyperpolarization and ultimately synaptic inhibition and decreased neuronal excitability. In addition, this agent inhibits glutamate induced depolarization.
Glossary Term
The assemblage of traits or outward appearance of an individual. It is the product of interactions between genes and between genes and the environment.
Indicators
An essential aromatic amino acid in humans (provided by food), Phenylalanine plays a key role in the biosynthesis of other amino acids and is important in the structure and function of many proteins and enzymes. Phenylalanine is converted to tyrosine, used in the biosynthesis of dopamine and norepinephrine neurotransmitters. The L-form of Phenylalanine is incorporated into proteins, while the D-form acts as a painkiller. Absorption of ultraviolet radiation by Phenylalanine is used to quantify protein amounts. (NCI04)
Tests
The determination of the ratio of phosphatidylglycerol compared to lung surfactant present in a sample. The measurement may be expressed as a ratio or percentage.
