(n.) An instrument for determining the size or distance of inaccessible objects by means of two reflectors on a common sextant.
Example Sentences:
Micrometer
Definition:
(n.) An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given directly is that of the image of the object formed at the focus of the object glass.
Example Sentences:
(1) ATP and deoxy-ATP, but not CTP, GTP, ITP, UTP, ADP, or cyclic AMP, promote Ca uptake; the KATP, is approximately 10 micrometer.
(2) At 5 micrometer and 2.5 mM sulphanilic acid under aerobic conditions, the regression lines for the permeation from lumen to blood pass almost through the origin, while the regression lines for the permeation from blood to lumen intersect the ordinate at a positive Y-value.
(3) The average length of the sarcomere in 5,34 micrometer for the non contracted muscle and 2,09 micrometer for the fully contracted muscle.
(4) Lipolysis stimulated by higher concentrations (0.3 and 3 micrometer) of NA was inhibited to a minor degree or not at all.
(5) The percentage inhibition of ATCase responds in a linear way to the logarithm of the concentration of PALA between 0.10 and 1.00 micrometer.
(6) To illustrate its potential for imaging ion currents through channels in membranes, a topographic image of a membrane filter with 0.80-micrometer pores and an image of the ion currents flowing through such pores are presented.
(7) Cortical lamination and parcellation of the anterogenual region in the human brain is studied in sections successively stained for nerve cells (15 micrometers), myelin sheaths (100 micrometers), and lipofuscin granules (800 micrometers).
(8) Under the same conditions the lowest thresholds for group Ib tendon organ afferents were about 40 micrometer.
(9) (d) It is shown that a high value of the cell-to-substrate gap may be accounted for by the presence of cell surface protrusions of a few micrometer length, in accordance with electron microscope observations performed on the same cell population.
(10) The bundle was confined to the medulla, and averaged 150-200 micrometer in width in the adult.
(11) This shows that there is an internal signal, but its range is short, only a few micrometers.
(12) In 17 pentobarbitalized dogs, the shunting of 15-micrometer and 9-micrometer microspheres was studied in the brain, myocardium, kidney, intestine, and lung.
(13) The plateau phase of Ca2+ was inhibited competitively by Mg2+ (0.5--50 mM) and non-competitively by Mn2+ (30 micrometer--1 mM), whereas the maximal contraction of Ca2+ was not inhibited by either ion.
(14) The intracellular distribution of ligandin and Z protein was studied by applying the peroxidase-antiperoxidase procedure of L. A. Sternberger (Immunocytochemistry, Prentice Hall Inc., 1974) to paraffin sections and free-floating 10-micrometers frozen sections that were processed for both light and electron microscopy.
(15) PVC particles in micrometer size range are very suitable as models to study persorbability in animals and the hematogenous dissemination of PVC particles.
(16) The mean thickness of epiphyseal plates form control rats was 430 micrometers (mum) which was reduced to 313 mum in hypoxic rats.
(17) These stones contained little cholesterol and exhibited a spongy microstructure characterized by small tubules with a diameter of 1 micrometer.
(18) Tracheobronchial deposition of inhaled particles in rabbit lung was studied after exposure to monodisperse aerosols 4--9 micrometer (aerodynamic diameter).
(19) Preliminary experiments have suggested that the swimmming speed of human sperm does not differ in flat capillary tubes of 200-micrometer and 400-micrometer depth.
(20) Type II neurons had multipolar or polygonal cell bodies, which measured an average 31 micrometer by 43 micrometer and emitted four to seven primary dendrites.