(n.) An optical instrument, consisting of a lens, or combination of lenses, for making an enlarged image of an object which is too minute to be viewed by the naked eye.
Example Sentences:
(1) The results of our microscopic model confirm that the continuum hypothesis used in our previous macroscopic model is reasonable.
(2) Light microscopic studies of pancreata from mice sacrificed at this time demonstrated insulitis and beta cell necrosis.
(3) Using serial section electron microscopic reconstructions as a reference, we have chosen as our standard procedure a method that maximizes both the preservation of the cytoskeleton and the proportion of cells staining, while minimizing the degree of nonspecific staining.
(4) It is concluded that the present method for demonstration of aryl sulphatase activity is not well suited for microscopical identification of lysosomes in rat liver parenchymal cells.
(5) Histological and electron-microscopic study of the lungs of 15 patients who had been treated with bleomycin for advanced squamous cell carcinoma demonstrated marked histological changes in nine.
(6) This light microscopic comparison of viable FDA- and nonviable PI-stained cysts of G. muris demonstrates that 2 types of cysts can be distinguished and implies that structural differences can be used to identify these subpopulations of cysts.
(7) Electron microscopic immunohistochemistry revealed histamine-immunostaining in granules in a small number of nerve fibers and varicosities.
(8) For routine use, 50 mul of 12% BTV SRBC, 0.1 ml of a spleen cell suspension, and 0.5 ml of 0.5% agarose in a balanced salt solution were mixed and plated on a microscope slide precoated with 0.1% aqueous agarose.
(9) Electron microscopic observations of the masseter nerve in the aged cats revealed a disruption of the myelin sheaths and a pronounced increase in collagen fibers in the endoneurium and perineurium.
(10) Widely varying numbers of endocrine cells were identified in 12 out of 64 cases of uterine cancer in the course of histochemical and electron microscopic examination.
(11) Significantly better survival was found in patients with T2 tumors in comparison with patients with T3 and T4 tumors, in patients with infrastructural localization in comparison with patients with suprastructural localization and in patients with microscopic residual tumor in comparison with MRT patients.
(12) At the light-microscopic level, adrenergic fibres were identified due to their formaldehyde-induced fluorescence.
(13) It has a poor prognosis prior to the current combined treatment of surgical ablation, radiation to the surgical field, and chemotherapy for microscopic metastases.
(14) Histochemical and electron microscopic examinations confirmed that this biochemical lesion was associated with abnormal intracellular accumulation of unesterified cholesterol in mutant lymphocytes.
(15) Suspensions of isolated insect flight muscle thick filaments were embedded in layers of vitreous ice and visualized in the electron microscope under liquid nitrogen conditions.
(16) Pure bile gave 32 correct diagnoses (67%) and 14 diagnoses of inadequate material (29%), which contained few nondegenerated cells and made microscopic diagnosis unreliable.
(17) Total excisional biopsy is necessary to properly assess an adenoma microscopically.
(18) Examination was by means of counter immunoelectrophoresis, radioimmunoassay and electron microscope with negative staining.
(19) Twenty-seven human septums were removed at post mortem, examined macroscopically, sectioned coronally and examined microscopically.
(20) A television camera scans the spread through microscope optics; computer and special purpose electronics process the video signals to generate run length histograms.
Microtome
Definition:
(n.) An instrument for making very thin sections for microscopical examination.
Example Sentences:
(1) Enzyme activities in sections of fixed corneas were minimal in comparison with those in cold microtome sections of unfixed material revealed particularly with the technic of semipermeable membranes which is to be preferred.
(2) A reduction to about 0.60 of the microtome setting was measured in two different areas of the brain.
(3) Seventy minutes after intravenous administration, the brain is rapidly frozen and cut on a cryostate microtome.
(4) Sections, 50 microns thick, were cut on a freezing microtome.
(5) With Polycut microtome, 5 microns undecalcified sections were made and stained with 1% toluidine blue.
(6) Slices (20 microns) of cheese from the boundary layer, into which DEHA had migrated, were microtomed at -40 degrees C, and analyzed for DEHA by gas chromatography (GC).
(7) In relation to other normal histological freezer microtome, the cytological method of fine needle biopsy has the advantage of being completely without complication.
(8) Glutamate decarboxylase (GAD) activity was measured in the individual cortical layers using serial sections cut on a freezing microtome parallel to the cortical surface.
(9) The resin is polymerized at 4 C. Thin sections (1-2 microns) are obtained with a sliding microtome, and ultrathin sections (60-90 millimicrons) with a ultramicrotome.
(10) His studies into histological staining techniques (principle of elective staining, mordant staining, staining of myelin sheaths) as well as into microtome techniques proved essential to progress in pathology and bacteriology.
(11) However, there appeared to be a linear relationship between microtome setting and the thickness of dewaxed sections.
(12) Sections of the ureters, urinary bladder, and urethra were cut with a freezing microtome and the method of Kyösöla et al.
(13) A method of microtome slicing of the renal cortex was developed to standardize measurements.
(14) Of three techniques for preparing the spermatozoa, the pre-embedding method and marking of cryoultra-microtome sections proved best.
(15) Infusion of the marker followed by freezing and examination of the cut heads on a freezing microtome, shows fluorescence throughout the ventricular system, in the subarachnoid space adjacent to the posterior tela and also along the dorsal subarachnoid space of the spinal cord.
(16) This work describes the pathologic anatomy of the burst fracture both on the gross structure and also on microtome sections of the vertebrae, and examines the biomechanics of fracture reduction.
(17) They were evaluated by preparing undecalcified microtome sections and ground sections which were examined by light microscopy and microradiography.
(18) In frozen microtome sections histoenzymatic reactions were performed to detect enzymatic activity of some phosphatases and esterases.
(19) The technique, which is inexpensive, permits cutting sections or viewing surfaces from specimens up to 8 cm long, while protecting the microtome knife from damage.
(20) Sections of the frozen tissue samples are prepared on the cryostatic microtome, placed on nitrocellulose filters and hybridized with labelled DNA-probes under the conditions of RNA blot hybridization.