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The state of the PENIS when the erectile tissue becomes filled or swollen (tumid) with BLOOD and causes the penis to become rigid and elevated. It is…

An oxidative decarboxylation process that converts GLUCOSE-6-PHOSPHATE to D-ribose-5-phosphate via 6-phosphogluconate. The pentose product is used in…

The production of PEPTIDES or PROTEINS by the constituents of a living organism. The biosynthesis of proteins on RIBOSOMES following an RNA template …

The enzymatic synthesis of PEPTIDES without an RNA template by processes that do not use the ribosomal apparatus (RIBOSOMES).

A process of GENETIC TRANSLATION, when an amino acid is transferred from its cognate TRANSFER RNA to the lengthening chain of PEPTIDES.

A process of GENETIC TRANSLATION whereby the formation of a peptide chain is started. It includes assembly of the RIBOSOME components, the MESSENGER …

A process of GENETIC TRANSLATION whereby the terminal amino acid is added to a lengthening polypeptide. This termination process is signaled from the…

The interference of one perceptual stimulus with another causing a decrease or lessening in perceptual effectiveness.

The transitional period before and after MENOPAUSE. Perimenopausal symptoms are associated with irregular MENSTRUAL CYCLE and widely fluctuated hormo…

The tendency of a phenomenon to recur at regular intervals; in biological systems, the recurrence of certain activities (including hormonal, cellular…

A systematic training calendar designed to provide variations in performance targeting, while maximizing results and reducing the potential for overt…

The period shortly before, during, and immediately after giving birth.

The mechanism, in peripheral lymphoid organs (LYMPH NODES; SPLEEN; TONSILS; and mucosal-associated lymphoid tissue), that prevents mature lymphocytes…

A movement, caused by sequential muscle contraction, that pushes the contents of the intestines or other tubular organs in one direction.

Uptake of substances from the PERITONEAL CAVITY.

Perennially frozen layer of soil below the surface in tundra.

Property of membranes and other structures to permit passage of light, heat, gases, liquids, metabolites, and mineral ions.

The engulfing and degradation of microorganisms; other cells that are dead, dying, or pathogenic; and foreign particles by phagocytic cells (PHAGOCYT…

Naturally occurring genetic variations associated with drug response (e.g., dosage, extent and rate of metabolic processes). While these variants are…

Dynamic and kinetic mechanisms of exogenous chemical DRUG LIBERATION; ABSORPTION; BIOLOGICAL TRANSPORT; TISSUE DISTRIBUTION; BIOTRANSFORMATION; elimi…

Synthesis, metabolism, and poisoning associated with drugs, pharmaceuticals, and other active molecules. Toxicological phenomena also include the adv…

Interactions that occur between a living organism and chemicals that affect normal or abnormal biochemical function.

Processes by which homogeneous mixtures of immiscible components (solids, liquids, or gases) separate into distinct phases.

A change of a substance from one form or state to another.

An adaptive mechanism used by microbes to avoid detection by the host or adapt to changes in environment by randomly and rapidly switch on and off of…

Zinc finger domains of approximately 50 to 80 amino acids in length that are characterized by a conserved Cysteine(3)-Histidine-Cysteine(4) amino aci…

MeSH category G (Phenomena and Processes) from desc2026.xml (kind=xml) with cached UMLS enrichment.

The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.

The process of producing vocal sounds by means of VOCAL CORDS vibrating in an expiratory blast of air.

Quanta of acoustic energy which move at the speed of sound.