(n.) The bed or receptacle prepared by a fowl for holding her eggs and for hatching and rearing her young.
(n.) Hence: the place in which the eggs of other animals, as insects, turtles, etc., are laid and hatched; a snug place in which young animals are reared.
(n.) A snug, comfortable, or cozy residence or situation; a retreat, or place of habitual resort; hence, those who occupy a nest, frequent a haunt, or are associated in the same pursuit; as, a nest of traitors; a nest of bugs.
(n.) An aggregated mass of any ore or mineral, in an isolated state, within a rock.
(n.) A collection of boxes, cases, or the like, of graduated size, each put within the one next larger.
(n.) A compact group of pulleys, gears, springs, etc., working together or collectively.
(v. i.) To build and occupy a nest.
(v. t.) To put into a nest; to form a nest for.
Example Sentences:
(1) Unlike most birds of prey, which are territorial and fight each other over nesting and hunting grounds, the hen harrier nests close to other harriers.
(2) Although selenium deficiency in livestock is consequently now rare in Oregon, selenium-deficient soils and attendant selenium deficiency conditions have been reported near the Kesterson Wildlife Refuge in the Northern part of the San Joaquin Valley, California, where, paradoxically, selenium toxicity in wildfowl, nesting near evaporation ponds, occurred and attracted wide attention.
(3) The nested gene is oriented in a direction opposite to that of factor VIII and contains no intervening sequences.
(4) The experiment had a 2 x 2 factorial arrangement of treatments with two nest holding times and two storage methods.
(5) Hens of the same breed and age reared together on deep litter showed no differences in nest site selection and nesting behaviour regardless of whether they had previously been housed in a deep litter house or in cages.
(6) Specific kinds of maternal behaviour such as nesting, retrieving, grooming and exploring, are seen in non-human mammalian mothers immediately before, during and after delivery.
(7) We conclude that both proprioceptive feedback and audio-feedback must be involved to yield maximal stimulation of follicular growth by the female's nest-coo display.
(8) Prolactin secretion was stimulated less in incubating hens deprived of their nests for 24 h (nest-deprived) than in laying hens after administration of the 5-HT receptor agonist quipazine, or precursor 5-hydroxytryptophan.
(9) Four mechanisms for the formation of ectopic meningioma have been suggested: (a) direct extension of an intracranial lesion; (b) distant metastasis from an intracranial meningioma; (c) origin from arachnoid cells within the sheaths of cranial nerves; and (d) origin from embryonic nests of arachnoid cells.
(10) After the relatively abrupt start of intensive nest-building, the seasonal course of a pair's behavior becomes more regular, an indication that this transition in the female's state is critical in pacing the pair's breeding activities.
(11) These centers will collaborate in a nested-case control study based on the pooled cases and a sample of the non-diseased respondents.
(12) Spencer has now heard that Andy, who got the boat remember, has been cracking on to Louise, even though Jamie warned him it would be like jumping into a polar bear's nest.
(13) Hens from both strains performed vacuum nest-building behaviour before laying.
(14) These are collected in her pollen baskets which she takes back to the nest to feed the young after fertilising the flowers.
(15) The marked differences in the lipolytic activities of adipose tissue emphasize the distinct influence of the post-natal nutrition on metabolic functions in the later life and lead to the conclusion that the metabolism of adipose tissue of animals from small nests is directed towards a long-term increased storage of lipids.
(16) The most consistently sensational evidence from Icac has been around former Labor member Eddie Obeid and the influence he wielded in the NSW Labor government to feather his own nest.
(17) After 48 h of nest deprivation, the hens resumed nesting within 5 min of being returned to the pen although the plasma levels of Prl were low.
(18) Although distortion by competing risks is well-recognized in follow-up studies, the problem has not been as widely appreciated in nested case-control studies.
(19) We test first for confounded effects by examining socioeconomic effects while excluding and then including reproductive variables in nested multivariate models.
(20) The bird's nest inferior vena cava filter, in clinical trial since 1982, has been placed in 568 patients at risk for pulmonary embolism.
Stickleback
Definition:
(v. t.) Any one of numerous species of small fishes of the genus Gasterosteus and allied genera. The back is armed with two or more sharp spines. They inhabit both salt and brackish water, and construct curious nests. Called also sticklebag, sharpling, and prickleback.
Example Sentences:
(1) Territorial sticklebacks were habituated to a male conspecific confined to a clear glass tube in a two stage experiment.
(2) The activity of the three enzymes was determined in the liver of ten-spined stickleback, a host of S. pungitii plerocercoids.
(3) Blood cells from Baltic salmon, Salmo salar, three-spined stickleback, Gasterosteus aculeatus, eel pout, Zoarces viviparus, crucian carp, Carassius carassius, African catfish, Clarias gariepinus, and reedfish, Calamoichthys calabaricus, were incubated with tritiated 11 beta-hydroxyandrostenedione (OHA) or 11-ketoandrostenedione (OA).
(4) The distribution of olfactory fibers in the brain of the three-spined stickleback was visualized by means of immunohistochemistry.
(5) At one extreme they are well developed (macrosmatic) such as in sharks and eels, and at the other they are poorly developed (microsmatic) such as in pike and stickleback.
(6) Stickleback Vg can be purified by con A-Sepharose chromatography.
(7) The costs of parental behaviour (fanning) were examined in male 1+ and 2+ three-spined sticklebacks (Gasterosteus aculeatus) by comparing the loss of wet mass incurred by starved parental males during the egg care period to those incurred by starved non-parental males during this same period.
(8) Kidney cells of the marine stickleback Spinachia have been studied with histochemical methods for the demonstration of glycoconjugates.
(9) The effect of administration of homologous prolactin on fanning behavior, an important aspect of parental care in sticklebacks and many other teleost fish, was studied.
(10) In the corpuscles of Stannius of sticklebacks and eels two cell types are described of presumably endocrine nature.
(11) These branches are only occasionally observed in the sensory epithelium of the nine-spined stickleback.
(12) Tritiated androstenedione was in vitro aromatized to estrone and estradiol by the stickleback brain.
(13) These findings suggest the existence of a physiological positive feedback within the gonadal-pituitary axis of the male stickleback when stimulated into its breeding condition by long photoperiod.
(14) The findings strongly suggest that the male sex hormone may exert a double control on the renal cells in the stickleback, at both the cytoplasmic and nucleolar levels.
(15) The results obtained demonstrate that administration of cyproterone acetate to male sticklebacks has an inhibitory effect on renal target cells, apparently indistinguishable from the changes induced by lack of male sex hormone, and that this drug may be a valid substitute for castration in fish.
(16) Thus, the three-spined stickleback and the nine-spined stickleback show considerable differences in the organization of the sensory regions of the olfactory epithelium.
(17) Gasterosteus aculeatus was the most heavily infected fish with 4 larval cestode species; for two of them (D. ditremum and S. solidus) the three-spined stickleback was found to be the required fish intermediate host.
(18) Field observations at one site on brown trout (Salmo trutta) and three-spined sticklebacks (Gasterosteus aculeatus) concurrently infected with mature Neoechinorhynchus rutili, together with the knowledge that large trout can be piscivorous in habit led to the proposition that the post-cyclic transmission of N. rutili may occur between these fish species.
(19) No significant mortality of caged stickleback fish occurred in these pools.
(20) The electrophoretic pattern of a sixth locus, mitochondrial NADP-dependent isocitrate dehydrogenase (IDH), was found to be sexually dimorphic but otherwise invariant in sticklebacks.