(n.) That which is laid; a stratum; a bed; one thickness, course, or fold laid over another; as, a layer of clay or of sand in the earth; a layer of bricks, or of plaster; the layers of an onion.
(n.) A shoot or twig of a plant, not detached from the stock, laid under ground for growth or propagation.
(n.) An artificial oyster bed.
Example Sentences:
(1) By 24 hr, rough endoplasmic reticulum in thecal cells increased from 4.2 to 7% of cell volume, while the amount in granulosa cells increased from less than 3.5% to more than 10%; the quantity remained relatively constant in the theca but declined to prestimulation values in the granulosa layer.
(2) These cells contained organelles characteristic of the maturation stage ameloblast and often extended to the enamel surface, suggesting a possible origin from the ameloblast layer.
(3) None of the other soft tissue layers-ameloblasts, stratum intermedium or dental follicle--immunostain for TGF-beta 1.
(4) Adding a layer of private pensions, it was thought, does not involve Government mechanisms and keeps the money in the private sector.
(5) Intraepidermal clefting starts at the junction between the basal and epidermal layers, and later involves all of the levels of the stratum spinosum.
(6) These data suggest that basophilic cell function in the superficial mucous layer in the nose is of greater significance in the development of nasal symptoms in response to nasal allergy than either mucociliary activity or nasal mucosal hypersensitivity to histamine.
(7) Likewise, they had little or no effects on the fluorescence anisotropy of TMA-DPH, which is also thought to be located in the interfacial region of the lipid bilayer, either when the probe was located in the outer layer of the plasma membrane or when the probe was located in the inner membrane compartment.
(8) While the heaviest anterogradely labeled ascending projections were observed to the contralateral ventral posterolateral nucleus of the thalamus, pars oralis (VPLo), efferent projections were also observed to the contralateral ventrolateral thalamic nucleus (VLc) and central lateral (CL) nucleus of the thalamic intralaminar complex, magnocellular (and to a lesser extent parvicellular) red nucleus, nucleus of Darkschewitsch, zona incerta, nucleus of the posterior commissure, lateral intermediate layer and deep layer of the superior colliculus, dorsolateral periaqueductal gray, contralateral nucleus reticularis tegmenti pontis and basilar pontine nuclei (especially dorsal and peduncular), and dorsal (DAO) and medial (MAO) accessory olivary nuclei, ipsilateral lateral (external) cuneate nucleus (LCN) and lateral reticular nucleus (LRN), and to a lesser extent the caudal medial vestibular nucleus (MVN) and caudal nucleus prepositus hypoglossi (NPH), and dorsal medullary raphe.
(9) Separation of PL by thin-layer chromatography revealed a prevalence of phosphatidylcholine followed by phosphatidylethanolamine.
(10) Thin layers of carbon (20 microns) and vacuoles (30 microns) suggested a large temperature gradient along the tissue ablation front.
(11) In cat, DARPP-32-immunoreactive cell bodies identified as Müller cells were demonstrated in the inner nuclear layer (INL) with processes closely surrounding the cell soma of photoreceptors in the outer nuclear layer.
(12) Suspensions of isolated insect flight muscle thick filaments were embedded in layers of vitreous ice and visualized in the electron microscope under liquid nitrogen conditions.
(13) We demonstrated that while the protein was incorporated into the cell layer at 6, 24, 48, and 72 hr, a far greater amount was secreted into the media.
(14) From this proliferating layer, precursor cells migrate outwards to reach the developing neostriatum in a sequential fashion according to two gradients of histogenesis.
(15) In many areas there are additional indications of thalamic terminations in deeper layers.
(16) Their narrowed processes pass at a common site through the muscle layer and above this layer again slightly widen and project above the neighbouring tegument.
(17) One month after unilateral transection of the fimbria-fornix an almost complete lack of cholinergic fibers persists in all layers of the dorsal hippocampus and fascia dentata ipsilateral to the lesion when compared to the contralateral hippocampus or to unlesioned control rats.
(18) After methylene blue, the gradient in resting potential across the circular layer was greatly reduced or abolished.
(19) In contrast, boundary layer diffusion is operative in the release from the matrixes prepared by compression of physical mixtures.
(20) This hydrostatic pressure may well be the driving force for creating channels for acid and pepsin to cross the mucus layer covering the mucosal surface.
Stratigraphy
Definition:
(n.) That branch of geology which treats of the arrangement and succession of strata.
Example Sentences:
(1) People are environmentally aware these days but maybe the information is not available to them to show the scale of changes that are happening.” The international team behind the paper includes several other members of the Subcommission on Quaternary Stratigraphy’s Anthropocene working group, which hopes to present a proposal to the ICS later this year.
(2) The Authors describe the usefulness of the additional radiologic investigations (stratigraphy and computed tomography) in the study of the back acetabular fractures.
(3) The history of the Earth is divided up according to the geological time scale, which is set by the International Commission on Stratigraphy.
(4) The chronometric framework developed for Plio-Pleistocene deposits of the northern Turkana Basin is reviewed in light of recent advances in lithostratigraphy, geochemical correlation, paleomagnetic stratigraphy, and isotopic dating.
(5) Each patient had a complete ophthalmologic examination, with electroretinography and visual-evoked potentials, a complete radiologic examination, including skull stratigraphy (particularly of the sellar and parasellar bony structures), and a computed tomographic scan.
(6) Following this our study presents data concerning the wells in the area, their position, methods of excavation, depth, stratigraphy and capacity of water-supply.
(7) In the light of the results obtained guidelines for the selection of bronchography as a diagnostic procedure are presented, specifying the situations in which stratigraphy, CAT scans or NMR are not adequate substitutes and suggesting what should be the current role of bronchography in paediatrics.
(8) However, by the use of accurate radiography, stratigraphy, bone scan and CAT, a pre-operative accurate diagnosis is usually possible.
(9) Intradermal (Casoni) or serological (Ghedini) tests and scintigraphy for the hepatic localization, and lung stratigraphy or histologic section for the pulmonary one, were the most frequent examinations performed.
(10) Stratigraphy revealed lung metastases not identified by standard radiography in 4 patients (1.8%), while CT revealed metastases not identified by either standard X-rays or stratigraphy in a further 6 cases (2.7%).
(11) What will survive of us is plastic The Anthropocene Working Group of the Subcommission on Quaternary Stratigraphy – a title straight out of Gormenghast – was created in 2009.
(12) The International Commission on Stratigraphy (ICS), the world body that decides on geological time boundaries, is actively considering the question and a working group is due to report on the issue next year.
(13) Twenty-six patients underwent clinical examination, radiography of the skull and neck, lateral stratigraphy of epipharynx, and CT of head and neck.
(14) Like many things in the world of geology, little moves fast at the International Commission on Stratigraphy (ICS), the body that decides the time period we live in.
(15) The physiopathologic implications of electrophysiological data is discussed to illustrate the possibility of using Evoked Potentials to help resolve the problems of functional cerebral stratigraphy in man.
(16) The value of stratigraphy and pulmonary CT in the initial work-up of osteosarcoma of the extremities is assessed with reference to 217 patients encountered in the Bone Tumour Centre of Rizzoli Orthopaedic Institute in May 1983-May 1986.
(17) Its subcommission on quaternary stratigraphy set up a working group on the Anthropocene, filled it with a diverse range of experts, and handed the problem to them.
(18) He added that the study should not be taken as “conclusive statement” that the Anthropocene had arrived, but as “another level of information” for the debate on whether it should be formally declared an epoch by the International Commission on Stratigraphy (ICS).
(19) The radiological (radiography and stratigraphy) finding was significant in 42 of the 61 gallium-positive cases and negative in the remaining 19.