A human being with self-contained equipment or surface-connected suit enabling operation within the water column. (http://vocab.nerc.ac.uk/collection/L06/current/72/)
Note
Human diver. For "divers (birds)" see "loons" c_2343.
Swine vesicular disease virus is classified as a pig enterovirus, in the family Picornaviridae. Causes Swine vesicular disease (SVD) is a viral disease affecting only pigs. (OIE. 2020. Technical Disease Cards. Swine vesicular disease ( https://www.woah.org/fileadmin/Home/eng/Animal_Health_in_the_World/docs/pdf/Disease_cards/SWINE_VESICULAR_DISEASE.pdf)
The relative amount by which the average fitness of a population is lowered, due to the presence of genes that decrease survival, compared to the genotype with maximum or optimal fitness. (https://lod.nal.usda.gov/nalt/301630)
An underwater acoustic positioning system is a system for the tracking and navigation of underwater vehicles or divers by means of acoustic distance and/or direction measurements, and subsequent position triangulation. Underwater acoustic positioning systems are commonly used in a wide variety of underwater work, including oil and gas exploration, ocean sciences, salvage operations, marine archaeology, law enforcement and military activities. (https://en.wikipedia.org/wiki/Underwater_acoustic_positioning_system)
An acoustically dense or opaque layer of organisms in the pelagic water column detected by back-reflection of a transmitted acoustic impulse (cf deep scattering layer). (Johnson, R.K., B.J. Zahuranec, D. Boltovskoy and A.C. Pierrot-Bults. 2000. Glossary of Pelagic Biogeographic Terms.
https://scor-int.org/Working_Groups/WG93_Glossary.pdf)
Ulceration of the gastric mucosa due to contact with gastric juice. It is often associated with Helicobacter pylori infection or consumption of nonsteroidal anti-inflammatory drugs (NSAIDS). (MeSH. Stomach Ulcer. http://id.nlm.nih.gov/mesh/D013276)
A specially designed pond where sexually maturing fish, potential broodstock, are held prior to spawning. Management provides optimum environmental conditions and feeding. (AQUALEX. Multilingual glossary of aquaculture terms (1998))
An international act whereby a State establishes on the international plane its consent to be bound by a treaty. (Based on Vienna Convention on the Law of Treaties, art. 2 (1) (b).)
Note
The difference between this concept and those of acceptance and approval, the other modes of expressing consent to be bound by a treaty, is more one of terminology than of method. It should not be confused, however, with other uses of the term "ratification", which may also refer to the requirements of internal law regarding the submission of a treaty to a particular organ of the State.
Peroxisomes are small, membrane-enclosed organelles that contain enzymes involved in a variety of metabolic reactions, including several aspects of energy metabolism. (Cooper GM. The Cell: A Molecular Approach. 2nd edition. Sunderland (MA): Sinauer Associates; 2000. Peroxisomes. Available from: https://www.ncbi.nlm.nih.gov/books/NBK9930/)
Luciferin is a generic term for the light-emitting compound found in organisms that generate bioluminescence. (https://en.wikipedia.org/wiki/Luciferin)
A segment of double-stranded DNA, in which the order of bases, read 5'?3' in one strand, is the same as that in the complementary antiparallel strand, also read 5'?3'. (FAO Glossary of Biotechnology for Food and Agriculture, 2001)
In statistics, stepwise regression is a method of fitting regression models in which the choice of predictive variables is carried out by an automatic procedure. (https://en.wikipedia.org/wiki/Stepwise_regression)
Formation of stones in any part of the urinary tract, usually in the kidney; urinary bladder; or the ureter. (MeSH. 2025. Urolithiasis. https://meshb-prev.nlm.nih.gov/record/ui?ui=D052878)
