(n.) Native carbon in hexagonal crystals, also foliated or granular massive, of black color and metallic luster, and so soft as to leave a trace on paper. It is used for pencils (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead.
Example Sentences:
(1) Here we present images of polydeoxyadenylate molecules aligned in parallel, with their bases lying flat on a surface of highly oriented pyrolytic graphite and with their charged phosphodiester backbones protruding upwards.
(2) This is a report on a male patient of 71 years of age who had been a graphite mill worker for about 14 years.
(3) The concentration of gold in whole blood was determined using graphite furnace atomic absorption spectrophotometry.
(4) As subcritical crack velocities under cyclic loading were found to be many orders of magnitude faster than those measured under equivalent monotonic loads and to occur at typically 45% lower stress-intensity levels, cyclic fatigue in pyrolytic carbon-coated graphite is reasoned to be a vital consideration in the design and life-prediction procedures of prosthetic devices manufactured from this material.
(5) A 5-year-old boy had an excisional biopsy of a pigmented scleral lesion thought clinically to be a foreign body, probably graphite from a pencil.
(6) A membrane-free glucose sensor was made by covalent immobilization of glucose oxidase on graphite followed by adsorption of N-methyl-phenazinium ion (PMS+).
(7) Stearate-modified graphite paste recording electrodes were acutely or chronically implanted into the nucleus accumbens along with bipolar stimulating electrodes in the ipsilateral ventral tegmental area (VTA).
(8) I describe a micro-scale method for determining lead in whole blood by utilizing a graphite furnace.
(9) The reconstituted acid mixture is injected into the graphite tube atomizer for analysis of Cu and Cd and aspirated into the air--acetylene flame for measurement of Zn.
(10) A spokesman said Graphite had “received no income or interest payments, or proceeds of any kind, from its investment in City & County”.
(11) Tissue reactivity to carbon cloth, graphite cloth and vitreous carbon in the solid was studied in dogs.
(12) The mercury-graphite electrode was also checked in respect of both the plating time and the amount of analyses performed.
(13) Tritium retention noted in graphite tiles underscores the significance of material selection in present and future 3H-fueled fusion devices.
(14) The resolution of the enantiomers of three closely related benzodiazepines, temazepam, oxazepam and lorazepam, is attempted on three new column systems: cellulose triacetate, beta-cyclodextrin and the reversed-phase column porous graphitic carbon with beta-cyclodextrin as a mobile phase additive.
(15) For some metals the analysis can be directly achieved by means of atomisation of the biological liquid in a flame or in a graphite furnace; for other metals it is necessary a treatment of the sample to separate the metal from the rest of the matrix, which can be: calcination, microcalcination, mining.
(16) A new grade of graphite-isotropic, fine-grained, and of superior strength-has been produced at the Oak Ridge National Laboratory.
(17) We believe that the introduction of high-performance background correction such as Smith-Hieftje, delayed atomization techniques, and aerosol deposition have taken graphite furnace AAS into its third phase.
(18) Zinc was analyzed by flame atomic absorption spectrophotometry, and the other elements by graphite furnace atomic absorption.
(19) An analysis of the product of interaction of a sample of native DNA with a large pyrolytic graphite electrode in the presence of formaldehyde at approximately neutral pH did not prove changes in the secondary structure of native DNA due to its interaction with the graphite electrode.
(20) Alternatively, a 50-mu-l sample of blood or erythrocytes is treated with 50 mu-l of concentrated nitric acid and a 1.5-mu-l aliquot is analyzed with use of the graphite tube.
Plastic
Definition:
(a.) Having the power to give form or fashion to a mass of matter; as, the plastic hand of the Creator.
(a.) Capable of being molded, formed, or modeled, as clay or plaster; -- used also figuratively; as, the plastic mind of a child.
(a.) Pertaining or appropriate to, or characteristic of, molding or modeling; produced by, or appearing as if produced by, molding or modeling; -- said of sculpture and the kindred arts, in distinction from painting and the graphic arts.
Example Sentences:
(1) The various evocational changes appear to form sets of interconnected systems and this complex network seems to embody some plasticity since it has been possible to suppress experimentally some of the most universal evocational events or alter their temporal order without impairing evocation itself.
(2) With the exception of PMMA and PTFE, all plastics leave a very heavy tar- and soot deposit after burning.
(3) The consequences of proved hypersensitivity in patients with metal-to-plastic prostheses, either present prior to insertion of the prosthesis or evoked by the implant material, are not known.
(4) We found that when neutrophils were allowed to settle into protein-coated surfaces the amount of O2- they generated varied with the nature of the protein: IgG greater than bovine serum albumin greater than plastic greater than gelatin greater than serum greater than collagen.
(5) FGF did not influence P production, while EGF clearly increased basal P production of the cells cultured on plastic.
(6) Alveolar macrophages (greater than 97% esterase positive) were isolated form bronchoalveolar lavage fluids by adherence onto plastic.
(7) During collection, the rat was restrained in a plastic holder where it was free to eat.
(8) The agency, which works to reduce food waste and plastic bag use, has already been gutted , with its budget reduced to £17.9m in 2014, down from £37.7m in 2011.
(9) Radiological examination provides more accurate indications for plastic surgery of the pelvic floor, influences the operative procedures and permits better evaluation of operative results.
(10) Unlike cells grown on plastic, RME cells grown on type I collagen were readily subculturable and serial subculture resulted in the cells undergoing 15-20 population doublings (5-6 passages) before exhibiting any loss of growth potential.
(11) In 36 patients plastic reconstruction of the urinary bladder, sphincter and urethra was performed with local tissues after the Young technic in the G. A. Bairov modification.
(12) This result contraindicates a general permissive-requisite role for forebrain NE for the mammalian brain's plasticity during its critical periods.
(13) Markram's papers on synaptic plasticity and the microcircuitry of the neural cortex were enough to earn him a full professorship at the age of 40, but his discoveries left him restless and dissatisfied.
(14) Thus functional plasticity in response to early experience appears to be a fundamental aspect of cortical development.
(15) A metal-plastic prosthesis was tested in positions and with forces considered applicable to arthritics.
(16) The surgeon must have an exact idea of this canal before undertaking operation for plastics of the hernial defect.
(17) HVc and RA grow during the subsong and plastic song periods of song development.
(18) Asymmetries occur less often whilst using the low-cervical-pull according to Sander, due to the reduced friction between the two plastic parts of this headgear system.
(19) This paper reports the findings of a national survey of Medical Schools and Plastic Surgery Units.
(20) Plastic surgery seems to be successful in mitral valve lesions, whereas lesions of the aortic valve are such that valve replacement is required.