(n.) A genus of herbs with compound white or bluish flowers; starwort; Michaelmas daisy.
(n.) A plant of the genus Callistephus. Many varieties (called China asters, German asters, etc.) are cultivated for their handsome compound flowers.
Example Sentences:
(1) Microscopic examinations of eggs stained with aceto-orcein or the DNA fluorochrome bisbenzimide and direct observations on isolated sperm aster complexes show that halothane induces polyspermy (multiple sperm entry) when present at fertilization.
(2) Second, the bulk of the vegetally located myoplasm moves with the sperm aster towards the future posterior pole, but interestingly about 20% remains behind at the anterior side of the embryo.
(3) The CTR2611 antigen is present in the center of each of these asters.
(4) Cytoplasmic asters were observed at all doses tested.
(5) RNase alters the in vitro assembly of spindle asters in homogenates of meiotically dividing surf clam (Spisula solidissima) oocytes.
(6) ASTER is an integration of the ACQUIRE (AQUatic toxicity Information REtrieval system) and QSAR (Quantitative Structure Activity Relationships) systems.
(7) The data indicate that meiotic spindle assembly is dependent on ongoing protein synthesis in the cumulus-enclosed hamster oocyte; in contrast, chromatin condensation and aster formation are not as sensitive to protein synthesis inhibitors during meiotic resumption.
(8) The eggs of the surf clam Spisula solidissima were artificially activated, homogenized at various times in cold 0.5 M MES buffer, 1mM EGTA at pH 6.5, and microtubule polymerization was induced by raising the temperature to 28 degrees C. In homogenates of unactivated eggs few microtubules form and no asters are observed.
(9) 101:289-316) used computer simulations to show that long-range signals from the asters, varying inversely as various powers of distance, produce summed effects that are minima at the equator of spherical cells.
(10) Microinjection of SPN-3 antibody into taxol-treated mitotic PtK2 cells causes disruption of the asters as judged by tubulin staining of the same cells.
(11) Furthermore, numerous cytoplasmic asters become visible in the cytoplasm.
(12) This is accompanied by the apparent shortening of the microtubules running between the asters.
(13) Mesomere-mesomeres (which divide equally) and macromere-micromeres (which divide unequally) are compared in terms of their asters (both mitotic and so-called interphase asters), spindle apparatus, and contractile ring.
(14) Within 15 min after incubation in D2O, numerous fine centrosomal foci are detected, and they organize a connected network of numerous asters which fill the entire egg.
(15) In the normal two-celled embryos of various pulmonate molluscs, the orientation of spindles characteristic of metaanaphase is being frequently established gradually, in the process of transition from pro- to metaphase accompained by the growth of spindle and asters.
(16) Colcemid-treated prometaphase cells lysed into polymerization-competent tubulin develop large asters in the region of the centrioles and short tubules at kinetochores, making it unlikely that all microtubule formation in lysed cell preparations is dependent on tubulin addition to short tubule fragments.
(17) They located in euchromatin regions of thymus lymphocytes, with a characteristic aster-like immunofluorescence pattern, and on the border of condensed chromatin areas by deposition of immunogold particles in ultrathin sections of thymus.
(18) We conclude first, that centrioles contain RNA which is required for initiation of aster formation, and second, that the centriole activity or ability to assemble a mitotic aster is separable from the basal body activity, or ability to serve directly as a template for microtubule growth.
(19) When injected into fertilized eggs at streak stage, the tubulin was quickly incorporated into each central region of growing asters.
(20) The asters then divide to form a transient tetrapolar figure.
Taster
Definition:
(n.) One who tastes; especially, one who first tastes food or drink to ascertain its quality.
(n.) That in which, or by which, anything is tasted, as, a dram cup, a cheese taster, or the like.
(n.) One of a peculiar kind of zooids situated on the polyp-stem of certain Siphonophora. They somewhat resemble the feeding zooids, but are destitute of mouths. See Siphonophora.
Example Sentences:
(1) For instance, it is hard to get colleagues to contribute to “survey courses” – taster programmes that briefly cover the main topics of a discipline.
(2) The harsh labour market experience of the young over recent years is a mere taster of what's in store.
(3) I decided to develop a 50-minute debut Fringe show and performed previews in London to test the show out and began promoting it.” By giving herself a taster of the Edinburgh experience before jumping in with both feet, Collins prepared herself for what was ahead.
(4) Among the tasters will be the Chicago-based author of Taste of Tomorrow, Josh Schonwald, and an Austrian food trends researcher, Hanni Rützler of the Future Food Studio.
(5) At one point, dissatisfied with their taste – she is an enthusiastic rather than a merely dutiful taster – she tipped seven plated servings of scallops back in a basin and began seasoning them all over again.
(6) Tasters selected milk earlier than did nontasters, suggesting that they like it more.
(7) Sensitive non-tasters demonstrated a distribution of reaction times that was similar to that observed with tasters.
(8) These results are regarded as a probable confirmation of the Indian origin of the Gipsies, as the percentage of non-tasters in the majority of the different Indian tribes is higher than that of the European populations.
(9) Now it provides a poignant taster of a major new British Museum touring exhibition that opens in Bristol on 21 September.
(10) The diminished intensity perception for sweet and bitter taste was much more prominent in non-tasters than tasters hypothyroids.
(11) Significantly more subjects who reported a mother debilitated by depression were PTC tasters (p less than .05).
(12) But they were tasters of what the no campaign thought the electorate deserved, ie not much.
(13) The impact of a rare “ice tsunami” in 2013 on the Canadian municipality of Ochre Beach was just a taster: a wall of melting iceberg on Dauphin Lake was blown by winds on to the shore, splintering every house in its path.
(14) In all the groups the frequency of 'tasters' exceeded that of 'nontasters.'
(15) Sixty percent of subjects of hyperthyroid and 40% of hypothyroid subjects were tasters.
(16) Between overall quality and the contents of total pigments, total anthocyanins, coloured anthocyanins and the tasters' mean colour scores; b. Flavour and the contents of total pigments and total anthocyanins.
(17) The present study examined differences in gustatory processing for tasters and non-tasters of phenylthiocarbamide (PTC) by assessing intensity judgment reaction times in these two groups.
(18) The SWR and CFW mice are both derived from Swiss mice, and the results were consistent with the possibility that the Taster animals share an allele which is identical by descent.
(19) We’ll give you some symbolic tasters – cutting winter fuel payments to wealthy pensioners, for example – but no hideous-sounding, cute-puppy-strangling, gruesome sacrifices that would really frighten people.
(20) Here's a taster: "Soccer" has weathered a long, dusty path for mainstream acceptance but the class of 2006 garnered idol status for Cahill, Kewell and co.