(n.) One who observes, or pays attention to, anything; especially, one engaged in, or trained to habits of, close and exact observation; as, an astronomical observer.
(n.) One who keeps any law, custom, regulation, rite, etc.; one who conforms to anything in practice.
(n.) One who fulfills or performs; as, an observer of his promises.
(n.) A sycophantic follower.
Example Sentences:
(1) 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.
(2) However, this deficit was observed only when the sample-place preceded but not when it followed the interpolated visits (second experiment).
(3) In conclusion, in S-rats a glucose-stimulated insulin release is accompanied by an increase in IBF, but this is not observed in P-rats.
(4) The combined immediate and delayed responses to fleas in the dog are as observed by other investigators in man and guinea pigs.
(5) However, when cross-linked to anti-CD4 or anti-CD8 antibodies a markedly enhanced proliferation of the corresponding subpopulation is observed.
(6) 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.
(7) Stimulation is also observed with mixtures of APC expressing DPw3 and APC expressing A1, and likewise, DPw3+ APC become stimulatory when preincubated with supernatants from A1-positive cells.
(8) For this reason, these observations should not be disregarded.
(9) No differences between the two substances were observed with respect to side effects and general tolerability.
(10) The testing of other models and their failure to describe the kinetic observations are discussed.
(11) The extrusion of granules into the intercellular space via exocytosis is frequently observed.
(12) The time of observation varied between 2 and 17 years.
(13) Insensitive variants die more slowly than wild type cells, with 10-20% cell death observed within 24 h after addition of dexamethasone.
(14) The subcellular distribution of sialyltransferase and its product of action, sialic acid, was investigated in the undifferentiated cells of the rat intestinal crypts and compared with the pattern observed in the differentiated cells present in the surface epithelium.
(15) No reaction product was observed in the lamellar areas.
(16) Cyanoacrylate and PDS coatings were not detectable after 6 weeks while PHBA and PLLA coatings were still observed after 48 weeks.
(17) A total of 13 ascertainments of folate sensitive autosomal fragile sites is observed, of which 10q23 fragility appears to be the most frequent.
(18) This new observation offers good possibilities to study the metabolism of tryptophan at the cellular level.
(19) 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.
(20) The fluctuations in [Ca2+]i measured with fura-2 were synchronized among the population of cells observed and were sensitive to extracellular Ca2+ concentration ([Ca2+]o).
Transit
Definition:
(n.) The act of passing; passage through or over.
(n.) The act or process of causing to pass; conveyance; as, the transit of goods through a country.
(n.) A line or route of passage or conveyance; as, the Nicaragua transit.
(n.) The passage of a heavenly body over the meridian of a place, or through the field of a telescope.
(n.) The passage of a smaller body across the disk of a larger, as of Venus across the sun's disk, or of a satellite or its shadow across the disk of its primary.
(n.) An instrument resembling a theodolite, used by surveyors and engineers; -- called also transit compass, and surveyor's transit.
(v. t.) To pass over the disk of (a heavenly body).
Example Sentences:
(1) Clinical signs of disease developed as early as 15 days after transition to the experimental diets and included impaired vision, decreased response to external stimuli, and abnormal gait.
(2) We conclude that first-transit and blood-pool techniques are equally accurate methods for determining EF when the time-activity method of analysis is employed.
(3) The high transition enthalpy for kerasin is ascribed to a lesser accommodation of gauche conformers in the hydrocarbon chains just below the transition temperature.
(4) Local embolism, vertebral distal-stump embolism, the dynamics of hemorrhagic infarction and embolus-in-transit are briefly described.
(5) Each profile is described by a simple sequence of band transitions (BT-sequence).
(6) These two types of transfer functions are appropriate to explain the transition to anaerobic metabolism (anaerobic threshold), with a hyperbolic transfer characteristic representing a graded transition; and a sigmoid transfer characteristic representing an abrupt transition.
(7) In addition to the phase diagrams reported here for these two binary mixtures, a brief theoretical discussion is given of other possible phase diagrams that may be appropriate to other lipid mixtures with particular consideration given to the problem of crystalline phases of different structures and the possible occurrence of second-order phase transitions in these mixtures.
(8) Biotin-avidin immunoperoxidase analysis for hCG was performed on all paraffin blocks containing carcinoma-in-situ, grade I, grade II, and grade III transitional cell carcinoma.
(9) The growth of transitional epithelial cells with different growth media and growth supports was examined.
(10) Subthreshold concentrations of the drug to induce complete blockade (5 x 10(-8)M) allowed to observe a greater depression of bioelectric cell characteristics in primary than in transitional fibres.
(11) The B cell epitopes included regions of transition between the more hydropathic (including the N-terminal end of the F1 and F2 protein) and hydrophilic sequences.
(12) There was no correlation between disturbed gastric clearance, impaired gall bladder contraction, and prolonged colonic transit time in the patients with cardiovascular autonomic neuropathy nor was there a correlation between any disturbed motor function and age or duration of diabetes.
(13) In addition, transitional macrophages with both positive granules and positive RER, nuclear envelope, negative Golgi apparatus (as in exudate- resident macrophages in vivo), and mature macrophages with peroxidatic activity only in the RER and nuclear envelope (as in resident macrophages in vivo) were found.
(14) Interphase death thus involves a discrete, abrupt transition from the normal state and is not merely the consequence of progressive and degenerative changes.
(15) Sialosyl-Tn antigen expression also was observed in intestinal metaplasia of the stomach and in transitional mucosa adjacent to the colorectal carcinoma, which are considered to be cancer-related lesions.
(16) Refolding was observed by injection of denatured protein into columns having isocratic concentrations in the transition and native base-line zones.
(17) The mutant ribosomes prepared from the transition-phase cells have much lower activity (below 60%) for poly(U)-directed polyphenylalanine synthesis than those in exponentially growing or resting stationary-phase cells.
(18) Aside from typical nuclear spheroids, irregularly shaped nuclei were frequently seen, associated with increased nuclear folds, transitional stages between nuclear folds and nuclear spheroids were also present.
(19) The surface film transition is especially noted in the pressure-area curve of the surfactant and approximates in two dimensions the broad thermotropic phase transition of the bulk phase surfactant.
(20) Stool weights, defecation frequencies, and transit times in this group are much closer to those of westernized whites than to rural blacks.