What's the difference between cumulus and stratus?

Cumulus


Definition:

  • (n.) One of the four principal forms of clouds. SeeCloud.

Example Sentences:

  • (1) Mouse sperm bind to zonae pellucidae of cumulus-free eggs in vitro in a Ca2+-dependent reaction; these sperm are intact by the CTC assay.
  • (2) The OCI-related membrane appeared a cause of OCI interference with fimbrial ovum capture by preventing the contact between the fimbrial cilia and the cumulus oophorus.
  • (3) In the presence of 0.02 mM verapamil, the maturation of cumulus-enclosed oocytes was not affected, whereas at the same dose of verapamil the maturation of denuded oocytes was inhibited.
  • (4) Survival rate of control oocytes (90%; based primarily on morphological appearance of the cumulus) incubated 0 h was greater (P less than .05) than that of all other groups, whereas survival rate of -196 degrees C oocytes (57%) was less (P less than .05) than that of all other groups.
  • (5) None of the inhibitors (H7, H8 and W7) altered the patterns of protein synthesis of either pig oocytes and cumulus cells after maturation in vitro.
  • (6) Thus, variation of the acrosome reaction-inducing activity of cumulus cells does not appear to be involved in the variable fertilization of oocytes obtained from follicles of differing maturity.
  • (7) In most mammalian ovaries, the cumulus cell-oocyte complex (COC) expands at the time of ovulation by depositing an extensive extracellular matrix between the cumulus cells.
  • (8) Oocyte maturity was graded on a scale from 1 to 5 based on the morphology of the ooplasm, cumulus mass, corona radiata, and membrana granulosa cells.
  • (9) Immediately before in vitro insemination, the oocytes were divided into three types with different follicle cells: denuded and corona- and cumulus-enclosed oocytes.
  • (10) When rat eggs in cumulus clot were exposed to epididymal sperm preincubated for five hours, the presence of sodium pyruvate, sodium lactate and glucose was found to play an important role.
  • (11) No significant binding could be detected either on the oocyte or on the cumulus cells surrounding the oocyte.
  • (12) Similarities were increased number of lipid droplets in the cumulus cells, widened peri-vitelline space, peripheral displacement or breakdown of the oocyte nucleus and disconnection of the junctions between cumulus cell projections and the oolemma.
  • (13) Oocyte-cumulus complexes were obtained, after induced ovulation, from infertile patients participating in an in-vitro fertilization programme.
  • (14) We conclude that human cumulus cells are a readily available and useful resource for in vitro screening of potential female reproductive toxicants.
  • (15) Activin A, which was purified as the erythroid differentiation factor, accelerated the maturation of not only follicle-enclosed oocytes and oocyte-cumulus complexes, but also denuded oocytes, as measured by an increase in the percentage of oocytes with germinal vesicle breakdown (GVBD).
  • (16) Immunostaining for dimeric activin-A occurs in granulosa and cumulus cells of human ovarian follicles and in granulosa-lutein cells of the human corpus luteum.
  • (17) Adenosine had a significant, but transient, effect in maintaining both cumulus cell-enclosed and denuded oocytes in meiotic arrest; all oocytes had undergone GVBD by 100 min incubation in 1 mM adenosine.
  • (18) The results strongly suggest that the cumulus oophorus expansion-promoting action of granulosa cells is mediated by PGE2, and support the hypothesis (Downs and Longo, 1983) that granulosa cells might play a similar role in the mechanism of cumulus expansion in vivo.
  • (19) Adenosine (ADO) in low micromolar levels and hypoxanthine (HYP) in millimolar levels have been shown to inhibit maturation of cumulus-enclosed oocytes.
  • (20) This factor produced by porcine cumulus cells negatively influenced maturation of bovine oocytes; however, a similar effect was not demonstrated in the mouse.

Stratus


Definition:

  • (n.) A form of clouds in which they are arranged in a horizontal band or layer. See Cloud.

Example Sentences:

  • (1) Correlations with an immunoradiometric assay (Embria), using 522 samples, gave: Stratus = 0.999 (Embria) -3.3; r = 0.969, and Magic Lite = 1.225 (Embria) -3.03; r = 0.971.
  • (2) We studied the influence of endogenous albumin and thyroxin-binding globulin concentration on five automated, nonisotopic methods of measuring FT4 [Enzymun on ES300 (one-step), Stratus I and II (essentially two-step), Delfia (two-step), and IMx (two-step)] in a mixed patient population.
  • (3) The green patches are of scattered low clouds (stratocumulus, stratus, fog).
  • (4) However, intra- and interassay precision was substantially better with the Stratus hCG assay, and this may allow earlier confirmation of pregnancy.
  • (5) The Stratus automatic analyser can replace radioisotopic methods, thus eliminating radioactive hazards.
  • (6) We evaluated four new nonisotopic immunoassays of free thyroxin (FT4)--Amerlite FT4 (Amersham International), Magic Lite FT4 (Ciba Corning Diagnostics), Stratus FT4 (Dade--Baxter Travenol), and FT4 Enzelsa (Compagnie ORIS Industrie)--by comparison with two FT4 radioimmunoassays: Amerlex and Sclavo.
  • (7) Automated digoxin immunoassays with the Abbott TDx, Dade Stratus, and Du Pont aca were evaluated against an RIA similar to the Centers for Disease Control Candidate Reference Method.
  • (8) The advantageous features of the Stratus mass assay were as follows.
  • (9) Stratus TSH results were outside the reference range for 20% of clinically euthyroid patients (n = 126), and 2.4% had undetectable levels.
  • (10) Recently developed fluorescent enzyme immunoassays (FEIs) for follitropin (FSH) and lutropin (LH) designed for the Stratus analyzer were compared with a typical dual FSH-LH radioimmunoassay (RIA) procedure.
  • (11) First, we evaluated the financial impact of a rapid, monoclonal antibody-based CK-MB mass assay (Stratus, Dade Division, Baxter Laboratories, Miami, Fla) for the direct measurement of CK-MB in serum samples from 65 patients admitted to the coronary care unit with the possible diagnosis of acute myocardial infarction.
  • (12) Blood specimens from each patient were assayed for apparent SDCs in triplicate using a fluorescence polarization immunoassay (FPIA, TDx Digoxin II, Abbott) and a digoxin radioimmunoassay (RIA, GammaCoat I125, Clinical Assays) and in duplicate using a fluorometric enzyme immunoassay (Dade Stratus, American Dade).
  • (13) We determined that a membrane-associated, high-molecular-mass form of alkaline phosphatase was a cause of these falsely increased values and instituted an approach to identify falsely increased Stratus CK-MB values.
  • (14) In a previous evaluation of a "sensitive" radial partition fluorescent immunoassay on the Stratus system, thyrotropin (TSH) values exhibited a positive bias in icteric samples when compared with results of a nonsensitive radioimmunoassay.
  • (15) (acoustic) Crimson And Clover (acoustic) Sweet Thing (aborted) Funknroll (acoustic) Q & A (2) Stratus incl.
  • (16) On average, the higher ALP values were associated with larger discrepancies between Stratus and RIA TSH values, although several samples with increased ALP did not have falsely increased Stratus TSH values.
  • (17) The reliability and precision of three digoxin immunoassays--Baxter Dade Stratus (BDS), Syva affinity column enzyme-mediated immunoassay (EMIT), and the reference assay Abbott TDx fluorescence polarization immunoassay following ultrafiltration (FPIA-UF)--were compared in eight digoxin toxic patients treated with digoxin fab antibodies.
  • (18) Dibenzepine has a thymeretic rapid and intensive action and a slow thymoanaleptic effect on the same personality stratus of Clorimipramine.
  • (19) The method was compared with immunoradiometric (Bioclone Australia), chemiluminescent (Amerlite; Amersham), and immunoenzymometric assays (Stratus; Dade).
  • (20) Samples were measured using the Abbott TDx assay with and without ultrafiltration of the sample and the Dade-Stratus radial partition assay.