What's the difference between strata and stratum?

Strata


Definition:

  • (n.) pl. of Stratum.
  • (pl. ) of Stratum

Example Sentences:

  • (1) These laminae included the dentate hilus and strata oriens, pyramidale and lacunosum-moleculare of CA1.
  • (2) High-density lipoprotein cholesterol was increased by 7 and 9 percent by simvastatin and by 17 and 16 percent by gemfibrozil in strata I and II, respectively.
  • (3) Although their numbers are greatest in the polymorph region of the fascia dentata (FD) and in the principal cell layers stratum pyramidale (SP) and stratum granulosum (SG), GAD immunoreactive (GAD-IR) cells are numerous in other strata that contain mostly dendrites and scattered cells.
  • (4) in the US the last ten years have witnessed an alarming recrudescence involving vast strata of the population and especially children, although this is masked by the paucity of reports, as is the case also in Italy.
  • (5) It was hard to understand why the girls would go back and why they couldn’t be saved.” She said she had been disturbed by what they had uncovered during research, what she called an “institutional neglect of a certain strata of society”.
  • (6) Densities of all synapses in the strata radiatum and lacunosum-moleculare in ethanol-treated group were significantly lower than those of control group on 2, 14, 21 and 70 days.
  • (7) There were 255 women who delivered term infants with birthweights under the 31st percentile (low birthweight), who were each matched to women who delivered heavier term infants, within ethnic and gestational age strata.
  • (8) A projection-less strip appears at the expected retinotopic position in both grisea intersecting radially all the strata of the corresponding neuropiles.
  • (9) This paper emphasizes their practical usefulness in medical sciences and their theoretically close relationship with the problem of simultaneous estimation of parameters, depending on strata.
  • (10) Lesion of the fimbria-fornix resulted in a reduction of cholinergic input to the hippocampal formation as indicated by the loss of acetylcholinesterase (AChE)-positive staining in all ipsilateral hippocampal laminae and a loss of [3H]hemicholinium-3 binding to cholinergic terminals in the strata oriens (82% reduction) and radiatum (77% reduction) of areas CA2 and CA3 and in the molecular layer of the dentate gyrus (83% reduction).
  • (11) Three treatment centers were included in the present study to examine these conclusions with other populations containing adolescents, females, and patients from higher socioeconomic strata.
  • (12) On variables measuring life satisfaction or frequency of contact with relatives, however, the extent of ethnic variation declined across age strata, indicating some support for the "age as leveler" hypothesis.
  • (13) The histological features of the three deepest strata of the Optic Tectum of Barbus meridionalis were studied with several staining and impregnation techniques.
  • (14) magazine strata of society that somehow we just didn’t understand,” he says.
  • (15) Emphasis is given to the influence of heterogeneity in sexual activity and patterns of sexual contact between different strata of the population, and on earlier predictions which suggested that AIDS is capable of reversing the sign of population growth rates over time periods of a few to many decades.
  • (16) By light microscopy, the majority of varicose processes with intense TH-like immunoreactivity (LI) were contained in the hilus of the dentate gyrus (DG) and strata radiatum and lacunosum-moleculare of the CA3 region of the hippocampus.
  • (17) Our evidence demonstrates the presence of gap junctions and suggests that the distribution of gap junctions is not homogeneous among the epithelial strata.
  • (18) Neither did it influence the quantities of major keratinocyte organelles (keratin filaments, desmosomes, ribosomes, mitochondria) in the different epidermal strata.
  • (19) Stratified blocked randomization will create near balance within strata, but imbalance for the total trial may still occur.
  • (20) Synaptic input from bipolar cells was seen exclusively near the border between strata 4 and 5.

Stratum


Definition:

  • (n.) A bed of earth or rock of one kind, formed by natural causes, and consisting usually of a series of layers, which form a rock as it lies between beds of other kinds. Also used figuratively.
  • (n.) A bed or layer artificially made; a course.

Example Sentences:

  • (1) None of the other soft tissue layers-ameloblasts, stratum intermedium or dental follicle--immunostain for TGF-beta 1.
  • (2) Intraepidermal clefting starts at the junction between the basal and epidermal layers, and later involves all of the levels of the stratum spinosum.
  • (3) After application to the skin, oxiconazole is rapidly absorbed into the stratum corneum, maximum concentrations often being attained within 100 minutes.
  • (4) The lower lipid content, expressed as weight per unit weight of tissue, in palmo-plantar stratum corneum as compared to non-palmo-plantar stratum corneum may be related to the fact that a larger portion of the intercellular space of the former tissue is occupied by desmosomes.
  • (5) Emollients can increase the water content in the stratum corneum by delivery of their water to the skin, and by occlusion.
  • (6) Since DG I belongs to the group of transmembrane desmosomal proteins that is believed to constitute the link between the intracellular parts of desmosomes of opposing cells, it is concluded that desmosomes may play an important role in plantar stratum corneum cell cohesion, and that degradation of desmosomes may be an important step in desquamation in plantar epidermis.
  • (7) The stratum superficiale consists during this phase of tall columnar cells.
  • (8) Sheet preparations of the stratum granulosum from the epithelium of the ventral surface of mouse tongue permit examination of cell replacement of this maturation compartment of the tissue.
  • (9) A less extreme drop occurs in stratum radiatum 0.4 mm from the subiculum border, without obvious histological correlate.
  • (10) For this purpose, the author relies on the observations of a group of doctors during a 5-year attempt to interest neurotic patients in this stratum in a psycho-therapeutic discussion at a medical ambulant clinic.
  • (11) However, AGC and AC in their hydrogenated form also caused aggregation and stacking of the stratum corneum lipid liposomes.
  • (12) Although their numbers are greatest in the polymorph region of the fascia dentata (FD) and in the principal cell layers stratum pyramidale (SP) and stratum granulosum (SG), GAD immunoreactive (GAD-IR) cells are numerous in other strata that contain mostly dendrites and scattered cells.
  • (13) mGluR1 alpha, a 142 kd protein, is enriched within the olfactory bulb, stratum oriens of CA1 and polymorph layer of dentate gyrus in hippocampus, globus pallidus, thalamus, substantia nigra, superior colliculus, and cerebellum.
  • (14) In an electron microscopic study, we found transitional cells between the stratum granulosum and stratum corneum that were increased in CRP.
  • (15) Following micropressure application of glutamate (500 microM) in stratum lacunosum-moleculare (L-M), inhibitory postsynaptic potentials (glut-IPSPs) were recorded in CA1 pyramidal cells.
  • (16) For the skins without stratum corneum, the permeation rates and permeation amounts of l-NG and dl-NG were higher than those for the intact skin (P less than 0.01), but no significant difference was seen between l-NG and dl-NG.
  • (17) Most of the GABA-negative calretinin-immunoreactive neurons were located in the hilus of the dentate gyrus and in stratum lucidum of the CA3 subfield.
  • (18) A null zone and associated sudden phase-reversal of RSA were observed in stratum lucidum of CA3.
  • (19) However, when the stratum corneum was removed by tape stripping, the respective permeability coefficients were increased greater than 30-fold, establishing the stratum corneum as the principal barrier to their skin permeation.
  • (20) Moisture on the skin was shown to increase the discharge to a standard stimulus, probably by its softening effect on the stratum corneum.