What's the difference between layer and tier?

Layer


Definition:

  • (n.) One who, or that which, lays.
  • (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.

Tier


Definition:

  • (n.) One who, or that which, ties.
  • (n.) A chold's apron covering the upper part of the body, and tied with tape or cord; a pinafore.
  • (v. t.) A row or rank, especially one of two or more rows placed one above, or higher than, another; as, a tier of seats in a theater.

Example Sentences:

  • (1) Mike Ashley told Lee Charnley that maybe he could talk with me last week but I said: ‘Listen, we cannot say too much so I think it’s better if we wait.’ The message Mike Ashley is sending is quite positive, but it was better to talk after we play Tottenham.” Benítez will ask Ashley for written assurances over his transfer budget, control of transfers and other spheres of club autonomy, but can also reassure the owner that the prospect of managing in the second tier holds few fears for him.
  • (2) In a triple tier configuration, females concentrated 66% of their travel on the top tier.
  • (3) Not because we are “chippy, moronic gits” (thank you, Twitter), but because we do not see the social benefit of a two-tier education system that provides a small minority with vastly more opportunities than the rest.
  • (4) Oregon’s governor on Wednesday signed trailblazing legislation that will raise the minimum wage to nearly $15 in six years, and do so through a three-tiered system that has not been tried anywhere else in the country.
  • (5) Tier one comprises the nosological diagnosis, and tier two a detailed depiction of the component psychological dysfunctions.
  • (6) A 28 kDa calcium-binding protein (CaBP, or calbindin-D28 kDa) is expressed in dorsal tier mesostriatal dopaminergic neurons.
  • (7) A new, two-tier system for biotyping Salmonella typhimurium gives a finer and more reliable differentiation of strains than the Kristensen scheme and is capable of future extension by the addition of new types and new tests.
  • (8) The first two games from that partnership will be based on the company’s b-tier franchises Animal Crossing and Fire Emblem.
  • (9) It also represents the legalisation of a two-tiered system of tenants' rights – those who can afford to have rights and those who can't."
  • (10) Instead it said that the changing of the settings – which previously required users to navigate through up to 150 different settings to control who could see their data, to a simpler four-tiered version plus a "customise" option – was "merely a red herring".
  • (11) It's a pacey device, and one that serves the game-show content of the novel, and this is a good book; mid-tier King.
  • (12) The testing found that ATEbank would have a Tier 1 capital ratio of 4.36% under the most adverse scenario, leaving it short of €242.6m.
  • (13) In the year of the credit crunch, 2007, the bank's crucial tier one ratio – a measure of its financial health – was 4.7%.
  • (14) Such a compromise would have been difficult to reach even with such a deal, because many Democrats fear it would create a “two-tier” workforce.
  • (15) This tier system appears to provide a considered and careful approach to the requirement to assess the ocular tolerance of those materials for which conventional animal tests are not essential.
  • (16) The rhabdom of the larval eye, if cut longitudinally, exhibits a "banded" structure over its entire length; in the adult the banded part is confined to the distal end, and the rhabdom is tiered.
  • (17) Last month he told MPs on the education select committee he doubted there was any proof of noncompliance with the standards by academies, which Oliver has warned risks creating a two-tier system where some pupils receive healthy food and others do not.
  • (18) The tier system approach to Subdivision M guidelines allows for an effective screen (Tier I), and for in-depth (Tier II) evaluation of biochemical pesticides as immunotoxic agents.
  • (19) Auditors are also concerned about the longer-term financial sustainability of single-tier and county councils, reporting that 52% of these authorities are not well placed to deliver their medium-term financial strategies.” The report concludes that the DCLG “does not monitor in a coordinated way the impact of funding reductions on services, and relies on other departments and inspectorates to alert it to individual service failures.
  • (20) As the government pushes ahead with funding cuts of more than a third in local government, the National Audit Office said many single-tier and county councils feared for core services including education and social care.