What's the difference between aster and master?

Aster


Definition:

  • (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.

Master


Definition:

  • (n.) A vessel having (so many) masts; -- used only in compounds; as, a two-master.
  • (n.) A male person having another living being so far subject to his will, that he can, in the main, control his or its actions; -- formerly used with much more extensive application than now. (a) The employer of a servant. (b) The owner of a slave. (c) The person to whom an apprentice is articled. (d) A sovereign, prince, or feudal noble; a chief, or one exercising similar authority. (e) The head of a household. (f) The male head of a school or college. (g) A male teacher. (h) The director of a number of persons performing a ceremony or sharing a feast. (i) The owner of a docile brute, -- especially a dog or horse. (j) The controller of a familiar spirit or other supernatural being.
  • (n.) One who uses, or controls at will, anything inanimate; as, to be master of one's time.
  • (n.) One who has attained great skill in the use or application of anything; as, a master of oratorical art.
  • (n.) A title given by courtesy, now commonly pronounced mister, except when given to boys; -- sometimes written Mister, but usually abbreviated to Mr.
  • (n.) A young gentleman; a lad, or small boy.
  • (n.) The commander of a merchant vessel; -- usually called captain. Also, a commissioned officer in the navy ranking next above ensign and below lieutenant; formerly, an officer on a man-of-war who had immediate charge, under the commander, of sailing the vessel.
  • (n.) A person holding an office of authority among the Freemasons, esp. the presiding officer; also, a person holding a similar office in other civic societies.
  • (v. t.) To become the master of; to subject to one's will, control, or authority; to conquer; to overpower; to subdue.
  • (v. t.) To gain the command of, so as to understand or apply; to become an adept in; as, to master a science.
  • (v. t.) To own; to posses.
  • (v. i.) To be skillful; to excel.

Example Sentences:

  • (1) Once the normal variations are mastered, appreciation of retinal, choroidal, optic nerve, and vitreal abnormalities is possible.
  • (2) There’s a fine line between pushing them to their limits and avoiding injury, and Alberto is a master at it.
  • (3) At the masters level, efforts are generally directed at utilization and evaluation of research more than design and implementation.
  • (4) He loved that I had a politics degree and a Masters.
  • (5) Learn from the masters The best way to recognise a good shot is to look at lots of other photographs.
  • (6) We’re all very upset right now,” said Daniel Ray, 24, in his third year of the divinity master’s degree program.
  • (7) The fitting element to a Cabrera victory would have been thus: the final round of the 77th Masters fell on the 90th birthday of Roberto De Vicenzo, the great Argentine golfer who missed out on an Augusta play-off by virtue of signing for the wrong score.
  • (8) The four members of the committee are all masters of wine, and the chairman is a retired diplomat, Sir David Wright.
  • (9) The master unit is probably present in all seven pairs.
  • (10) Examination of the role of the public health officer indicates that registered nurses with a master's degree in public health have, in many cases, more training and experience than physicians to function effectively in this role.
  • (11) The technique is readily mastered by any urologist experienced in endoscopic surgery.
  • (12) Here, the balance of power is clear: the master is dominating the servant – and not the other way around, as is the case with Google Now and the poor.
  • (13) Unions warned it could lead to a system where civil servants were loyal to their political masters rather than the taxpayer.
  • (14) Though there will be an open competition, the job is expected to go to Lord Dyson, who will step down from the supreme court to become master of the rolls.
  • (15) I can’t think about retiring,” said Miyazaki, who will compete in the Japanese masters championships next month.
  • (16) Each health educator would receive an adjunct appointment at the health-grant university and would be required to participate in special training sessions and to master progressive health education strategies.
  • (17) Part of the problem is that today's science is taking human capabilities to master nature to new levels.
  • (18) For Tóibín, it is the third time on the Booker shortlist following The Blackwater Lightship in 1999 and The Master in 2004.
  • (19) My immediate suspicion is that the pupil is taking the same course as the master, though I accept it is a large thesis to hang on beige furnishings.
  • (20) He will only be able to satisfy all the expectations if he masters, by virtue of his training and experience, the art of setting up a treatment plan with priorities.