(n.) The act or process of laying in strata, or the state of being laid in the form of strata, or layers.
(n.) The deposition of material in successive layers in the growth of a cell wall, thus giving rise to a stratified appearance.
Example Sentences:
(1) An important stratification factor, however, was related to tobacco usage.
(2) As retinal stratification continued, more cells were observed to have elaborated membrane systems for GABA uptake with varying degrees of affinity.
(3) Since T-antigen expression is correlated directly with impairment of stratification and differentiation, it is interesting that treatment of SVK14 with a single growth factor.
(4) We discuss advantages and disadvantages of total randomization, of Zelen-type randomization procedures, of Efron-type procedures vs more classical blocking procedures to control the balance between groups, and of Simon-Pocock-type procedures vs more classical stratification for controlling possible biases in prognostic factors.
(5) Heavy birthweight was 50% more frequent among Natives than non-Natives (relative risk 1.47, 95% confidence limits 1.35 and 1.59), after stratification by week of gestation.
(6) After allowance for the fact that regression analyses suggested that the proportion of tremolite in dust was probably 2.5 times higher in Thetford Mines, Quebec, than in Charleston, the results from both matched pair and stratification analyses of tremolite fibre concentrations in lung were almost the same as for chrysotile.
(7) Two prognostic stratification schemes were developed on the 1973 population which identified low and high risk groups with meaningfully different four-month cardiac death rates.
(8) It can be concluded that (i) stratified inhomogeneity in distal alveolar space does not exhibit a limiting factor of oxygen uptake in lungs, (ii) a contribution of stratificational effects to sloping alveolar plateau is expected to be of minor importance.
(9) The co-stratification of the two kinds of DS ganglion cell is consistent with the sharing of some inputs in common, including some cone bipolar cell inputs.
(10) Because hemicysts originated by detachment of squamous cells from the basal layers but not from adjacent squamous cells, they were considered to indicate stratification in the cultures.
(11) The value of invasive electrophysiologic testing for risk stratification in the general postinfarction patient population remains unclear.
(12) Although there is general concern about the psychological effects of gender stratification, we know relatively little about the particular aspects of inequality that affect men and women's mental health.
(13) The study used a cohort of elderly people randomly divided into two groups after stratification for sex.
(14) The recognition that tumor grade is the dominant prognostic variable has resulted in the more common use of a grading system, and a more uniform reporting and stratification of end results.
(15) Stratification of patients by either high or low predominant histologic grade is recommended in future GBA treatment studies.
(16) Extra-cellular recordings from single cells in the dorsal lateral geniculate nucleus (dLGN) of the tammar wallaby, Macropus eugenii, were made to find out whether the stratification of the nucleus could be correlated with the receptive field properties of units.
(17) Based on dendritic stratification within the inner plexiform layer (Famiglietti and Kolb, '76), the somatostatin-immunoreactive large cells were found to include both on-center cells and off-center cells, but were predominantly of the off-center type.
(18) Finally, we found that the changes in integrin expression that occur on initiation of stratification in vivo could be reproduced in organ cultures of developing skin; such cultures therefore provided a useful experimental model for further studies of the role of integrins in epidermal stratification.
(19) Patients with T1 squamous cell carcinomas had, in fact, the best prognosis (26.5% recurred) among the subgroups obtained by stratification of T number and cell type together; loco-regional failure as exclusive modality of relapse had a 5-year rate of 19.7% and metastatic failure of 30.0%.
(20) In 70% of cases the osseous adhesion is formed at the level of disks which demineralized osseous sawdust was introduced to (adhesion was formed, mainly, as perifocal osseous stratifications).
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.