(1) The stoichiometry of nucleotide binding to the isolated alpha- and beta-subunits of Escherichia coli F1-ATPase was investigated using two experimental techniques: (a) titration with fluorescent trinitrophenyl (TNP) derivatives of AMP, ADP, and ATP and (b) the centrifuge column procedure using the particular conditions of Khananshvili and Gromet-Elhanan (Khananshvili, D., and Gromet-Elhanan, Z.
(2) These 2 M LiCl extracts, as with the one obtained from spinach thylakoids (Avital, S., and Gromet-Elhanan, Z.
(3) Incubation of Rhodospirillum rubrum chromatophores with 2 M LiCl in the presence of MgATP has been shown to remove their F1 beta subunit leaving inactive but fully reconstitutable beta-less chromatophores (Gromet-Elhanan, Z., and Khanashvili, D., (1986) Methods Enzymol, 126, 528-538).
(4) The CF1 beta subunit was similar to the isolated beta subunit of Escherichia coli F1 (Gromet-Elhanan, Z., Khananshivili, D., Weiss, S., Kanazawa, H., and Futai, M. (1985) J. Biol.
Grommet
Definition:
(n.) A ring formed by twisting on itself a single strand of an unlaid rope; also, a metallic eyelet in or for a sail or a mailbag. Sometimes written grummet.
(n.) A ring of rope used as a wad to hold a cannon ball in place.
Example Sentences:
(1) Thus, only 1% of the ears with grommets had hearing losses exceeding 30 dB HL, whereas this occurred in about 20% of ears without grommets.
(2) Between the two groups, statistically significant differences were apparent in the management of this common complication of grommet surgery.
(3) These included around 1,500 cataract operations, 900 skin lesion removals, 630 hip and knee operations, 400 spine operations, 250 gall bladder removals and nearly 300 tonsil and grommets operations.
(4) Ten individuals received injected anaesthetic prior to myringotomy and grommet insertion and the discomfort of injection and of the procedure were similarly measured.
(5) A very large number of grommets are inserted to improve middle ear ventilation in children.
(6) Tympanosclerosis due to grommet insertion is summated using computer graphics.
(7) The first group was treated with adenoidectomy only, the second group was treated with adenoidectomy and bilateral myringotomies with insertion of grommets.
(8) A prospective trial was therefore designed to compare the function and extrusion rates of these grommets with those of the widely used Shepard design of Teflon grommet in a single group of patients.
(9) In 33 children, median age 4 years, with bilateral secretory otitis, adenoidectomy was performed, a grommet was inserted in the right ear, and paracentesis was done on the left side.
(10) T tubes remain in-situ for longer than grommets, and they are frequently used in cases where multiple grommet insertions have failed to provide adequate middle ear ventilation.
(11) The set screw makes electrical contact and mechanically secures the lead connector pin with a set screw insulated by a self-sealing grommet or an integral or separate set screw cover.
(12) In all of the others, the hearing impairment recurred, and continued to recur despite multiple grommet insertions in several patients.
(13) Half of these patients had a history of grommet insertion.
(14) Treatment of coexisting nasal, nasopharyngeal or sinus conditions at the time of grommet insertion did not result in any long-term improvement in hearing levels in comparison with those patients in whom no such aetiological factor was identified.
(15) One hundred and ninety-three consecutive children with bilateral secretory otitis media were treated by adenoidectomy, bilateral paracentesis, and evacuation of middle ear effusion, but with insertion of a grommet in the right ear only.
(16) Both preparations induced well-tolerated analgesia suitable for myringotomy with or without insertion of a grommet in the office environment.
(17) Cholesteatoma in children may be a sequel to chronic exudative otitis media with tympanic membrane retraction but the role of grommets in the possible facilitation of squamous epithelial invasion into the middle ear is not yet clear.
(18) We also use the T-grommet membrane tube for adults with chronic eustachian tube problems.
(19) Ventilation tubes ("grommets") appear to be the logical treatment of chronic secretory otitis media, based on the theory of its pathogenesis.
(20) Rubber grommets within the cooling tower probably provided a nidus of infection there.