(n.) A thin layer or fold of tissue, usually supported by a fibrous network, serving to cover or line some part or organ, and often secreting or absorbing certain fluids.
Example Sentences:
(1) Tryptic digestion of the membranes caused complete disappearance of the binding activity, but heat-treatment for 5 min at 70 degrees C caused only 40% loss of activity.
(2) The extents of phospholipid hydrolysis were relatively low in brain homogenates, synaptic plasma membranes and heart ventricular muscle.
(3) The patterns observed were: clusters of granules related to the cell membrane; positive staining localized to portions of the cell membrane, and, less commonly, the whole cell circumference.
(4) Activity of Na,K-ATPase activity was measured as a functional marker for synaptosomal membranes.
(5) The influence of the various concepts for the induction of lateral structure formation in lipid membranes on integral functional units like ionophores is demonstrated by analysing the single channel current fluctuations of gramicidin in bimolecular lipid membranes.
(6) Phospholipid methylation in human EGMs is distinctly different from that in rat EGMs (Hirata and Axelrod 1980) in that the human activity is not Mg++-dependent, and apparent methyltransferase I activity is located in the external membrane surface.
(7) The predicted non-Lorentzian line shapes and widths were found to be in good agreement with experimental results, indicating that the local orientational order (called "packing" by many workers) in the bilayers of small vesicles and in multilamellar membranes is substantially the same.
(8) Apparently, the irradiation with visible light of a low intensity creates an additional proton gradient and thus stimulates a new replication and division cycle in the population of cells whose membranes do not have delta pH necessary for the initiation of these processes.
(9) Using monoclonal antibodies directed against the plasma membrane of Madin-Darby canine kidney (MDCK) cells, we demonstrated previously that a glycoprotein with an Mr = 23,000 (gp23) had a non-polarized cell surface distribution and was observed on both the apical and basolateral membranes (Ojakian, G. K., Romain, R. E., and Herz, R. E. (1987) Am.
(10) The fraction of the viral dose which became cell associated was independent of the incubation temperature and increased with increasing target membrane concentration.
(11) Together these results suggest that IVC may operate as a selective activator of calpain both in the cytosol and at the membrane level; in the latter case in synergism with the activation induced by association of the proteinase to the cell membrane.
(12) The Cole-Moore effect, which was found here only under a specific set of conditions, thus may be a special case rather than the general property of the membrane.
(13) We have examined the insertion of bovine 17 alpha-hydroxylase (P45017 alpha) into the endoplasmic reticulum of COS 1 cells to evaluate the functional role of its hydrophobic amino-terminal sequence and membrane insertion.
(14) The transport of potassium ions through membranes of red blood cells was examined in in bitro experiments using a CMF of 4500 oersted.
(15) These membrane perturbation effects not observed with bleomycin-iron in the presence of a hydroxyl radical scavenger, dimethyl thiourea, or a chelating agent, desferrioxamine, were correlated with the ability of the complex to generate highly reactive oxygen species.
(16) Extensive studies during recent years have shown that the interaction between hormone and membrane-bound receptor can affect the receptor characteristics in at least two ways.
(17) Membranes of this material were filled with islets of Langerhans and implanted in the peritoneal cavity of rats.
(18) The penicillin-resistant Enterococcus hirae R40 has a typical profile of membrane-bound penicillin-binding proteins (PBPs) except that the 71 kDa PBP5 of low penicillin affinity represents about 50% of all the PBPs present.
(19) To investigate the mechanism of enhanced responsiveness of cholesterol-enriched human platelets, we compared stimulation by surface-membrane-receptor (thrombin) and post-receptor (AlF4-) G-protein-directed pathways.
(20) Moreover, in DCVC-treated cells the mitochondria could not be stained with rhodamine-123, indicating severe mitochondrial damage and loss of membrane potential.
Syringe
Definition:
(n.) A kind of small hand-pump for throwing a stream of liquid, or for purposes of aspiration. It consists of a small cylindrical barrel and piston, or a bulb of soft elastic material, with or without valves, and with a nozzle which is sometimes at the end of a flexible tube; -- used for injecting animal bodies, cleansing wounds, etc.
(v. t.) To inject by means of a syringe; as, to syringe warm water into a vein.
(v. t.) To wash and clean by injection from a syringe.
Example Sentences:
(1) This study sought to determine if and why barriers to the over-the-counter purchase of syringes in the St. Louis metropolitan area might exist, given that no ordinance prohibits such a sale there.
(2) The ability of 814 strains of Micromycetes to grow on ferulic and syringic acids was investigated.
(3) Use 3-ml Luer-Lok syringes and 30-gauge needles and thread the needle carefully into the vessel while using slow and steady injection with light pressure.
(4) Syringes that have been redesigned to eliminate the need for recapping offer a major safety advantage.
(5) After amputation of the closed tip, a cap from a syringe was inserted via a slit made at the base into one prong of a pair of nasal cannulae.
(6) When imitation examination was carried out using pontamine blue dye solution in 7 kinds of syringes for the use of cartridge, dye reflux was observed in all of them.
(7) However, the bulb syringe (BLB) is used more often for this purpose because of greater technical convenience.
(8) Re-use of plastic syringes would produce an annual saving of about ł15 per patient when compared with glass syringes.
(9) The drug was administered from a distance by means of a projectile syringe shot from a special rifle.
(10) Use of the multiple-dose syringe pump system resulted in a savings of $934.81 in material costs compared with the bottle and burette system and $9.70 in material costs compared with the single-dose syringe pump system (based on 40 doses).
(11) Loading is achieved by the production of transient, survivable plasma membrane disruptions as cells are passed back and forth through a standard syringe needle or similar narrow orifice.
(12) The performance of the Ligmaject syringe compared favourably with that of the conventional dental syringe in terms of patient acceptability and user convenience.
(13) In the nursery, the premeasured and prefiltered blood was ready for immediate infusion, and the syringe was attached directly to a mechanical infusion pump.
(14) The pH and PCO2 increased following alkalinization but gradually decreased in all containers except in polypropylene syringes.
(15) Now we need a global treaty on their responsibilities Read more WHO will embark on a global campaign around the benefits of syringes that have re-use prevention features - meaning they self-disable after a single use - as well as the dangers of reusable needles, with the goal of using WHO-approved syringes across the globe by 2020.
(16) Cells were injected 24 to 48 hr later through the skin using a syringe and needle.
(17) The introduction of specialized syringes in the late 1970s and early 1980s has led to an increase in the use of intraligamentary anaesthesia as a means of pain control in dentistry.
(18) The bacterial contamination of the syringe can be prevented by flushing the contaminated needle prior to changing.
(19) There were no differences in the number of voids in the automixed material dispensed using the intra-oral tip or impression syringe.
(20) A 32-year-old insulin-dependent diabetic patient reported recurrent clouding of her short-acting insulin, caused by silicone oil contamination from re-used disposable syringes.