(n.) A minute part or portion of matter; a morsel; a little bit; an atom; a jot; as, a particle of sand, of wood, of dust.
(n.) Any very small portion or part; the smallest portion; as, he has not a particle of patriotism or virtue.
(n.) A crumb or little piece of concecrated host.
(n.) The smaller hosts distributed in the communion of the laity.
(n.) A subordinate word that is never inflected (a preposition, conjunction, interjection); or a word that can not be used except in compositions; as, ward in backward, ly in lovely.
Example Sentences:
(1) Lung sections of rats exposed to quartz particles were significantly different.
(2) In oleate-labeled particles, besides phosphatidic acid the product of PLD action radioactivity was also detected in diglyceride as a result of resident phosphatidate phosphohydrolase, which hydrolyzed the phosphatidic acid.
(3) Subunits maintained under the above ionic conditions were compared with 30S and 50S particles at low (6 mM) magnesium concentration with respect to the reactivity of individual ribosomal proteins to lactoperoxidase-catalyzed iodination.
(4) Charcoal particles coated with the lipid extract were prepared and the suspension inoculated intravenously into mice.
(5) These observations suggest that the liver secretes disk-shaped lipid bilayer particles which represent both the nascent form of high density lipoproteins and preferred substrate for lecithin-cholesterol acyltransferase.
(6) Intramembrane particles (IMP) were quantitatively assessed in the perikaryal plasma membranes of infundibular neurons.
(7) The mode of ribosome degradation under this condition is discussed in terms of differential appearance of these intermediate particles.
(8) When commercial chickens are infected in most sensitive one-day age, the virus titre does not exceed the value of 10(12) particles per 1 ml of plasma.
(9) Interaction of viable macrophages with cationic particles at 37 degrees C resulted in their "internalization" within vesicles and coated pits and a closer apposition between many segments of plasmalemma than with neutral or anionic substances.
(10) A 2-fold increase in the dissolution rate was observed when the same number of particles was immobilized without macrophages.
(11) Photolysis of the photosystem I particles induces a progressive depletion of phylloquinone, however, photochemistry as assayed at room temperature by the photooxidation of P-700 is unaffected.
(12) Taking into account the calculated volume and considering the triangular image as one face of the particle, it is suggested that eIF-3 has the shape of a flat triangular prism with a height of about 7 nm and the above-mentioned side-lengths.
(13) Well defined surface projections could be found in all particle types.
(14) Type C-like particles were found inter- and intracellularly in gland and vessel lumina and scattered in the connective tissue.
(15) The intracellular distribution and interaction of 19S ring-type particles from D. melanogaster have been analysed.
(16) Viral particles in the cultures and the brain were of various sizes and shapes; particles ranged from 70 to over 160 nm in diameter, with a variable position of dense nucleoids and less dense core shells.
(17) In the absence of adequate data exclusively from studies of inhaled particles in people, the results of inhalation studies using laboratory animals are necessary to estimate particle retention in exposed people.
(18) Depletion of extracellular Ca2+ by EGTA [ethylene glycol-bis(beta-aminoethyl ether)-N,N,N'N'-tetraacetic acid] attenuated both [Ca2+]i increase and superoxide production induced by particles.
(19) Completed RNA chains were released from the subviral particles.
(20) Problems of calculations and predictions on more than two particles moving are known in mathematics and physics since a long time already.
Saltation
Definition:
(n.) A leaping or jumping.
(n.) Beating or palpitation; as, the saltation of the great artery.
(n.) An abrupt and marked variation in the condition or appearance of a species; a sudden modification which may give rise to new races.
Example Sentences:
(1) By the use of time-lapse microscopy to locate saltating particles prior to fixation and histochemical examination of the cells, structures of several kinds have been shown to move in this manner.
(2) Middlesevere cases (Hb 9-15 g%) showed in 57.2% an undulating and in 42.8% a saltatoring types of oscillation.
(3) The change in the orientation of pigment granule saltations following fertilization requires both a transient increase in the cytoplasmic concentration of Ca2+ and an elevation of cytoplasmic pH.
(4) Saltations in the unfertilized egg are very non-radial and are as likely to be directed toward the cortex as away.
(5) However, the appearance of saltations in such simple systems suggests that their appearance in a process as complex as biological evolution is not surprising.
(6) Bidirectional saltations are seen along the long axes of fully spread cells.
(7) The previous result of Rasminsky & Sears (1972) of delayed saltation in demyelinated nerve fibres was confirmed.
(8) In cases of severe fetal anemia (Hb less than 9 g%) we found at 64.2% a silent to narrowed undulating and at 21.4% saltatoring types of oscillations.
(9) It is suggested that such saltations may not represent more rapid rates of evolution but, rather, the persistence of evolutionary change in a given direction for a longer than normal period.
(10) Quantitation of vesicle saltations before and after fertilization demonstrates that while there is no significant difference in the speed or path-length of vesicle movement, there is a dramatic change in the orientation of these saltations.
(11) Immediately after injection, cells were recorded with a time-lapse video imaging system; later analysis of the tapes revealed that particles in cells injected with one of these antibodies (CG1, specific for CEF tropomyosin isoforms 1 and 3) showed a dramatic decrease in instantaneous speed while moving, distance moved per saltation, and proportion of time spent in motion.
(12) Saltations appear as a natural dynamical behavior in the evolution of simplistic information processing networks.
(13) Thus the 'larger vesicles' stopped moving at 25 degrees C, the small ones did not; both stopped at 18 degrees C. The 'small vesicles' continued to move actively after cell uptake of the polyanion poly-D-glutamic acid, while the saltations of the 'larger vesicles' were markedly slowed; both sets of vesicles stopped after uptake of ammonium chloride.
(14) Sequencing has revealed that the spacer DNA of X. laevis contains different kinds of simple DNA sequences, but no evidence has been found that spacer DNA once arose by saltation of a 15 bp segment.
(15) vignae revealed three categories of movement: a) general movement of cytoplasm, plus organelles, into the developing portions of the fungus during which the nuclei, in particular, maintained their characteristic position with remarkable constancy, b) relatively slow movements of various organelles such that they became displaced relative to one another and to the growing fungal tip, and c) erratic, rapid, saltations of small organelles over short distances.
(16) The co-transport of spectrin, actin, and calmodulin with cytomembranes undergoing rapid saltations departs from reported results of radioactive labeling experiments insofar as spectrin, actin, and calmodulin are not normally associated with rapidly transported membrane components in the latter studies.
(17) This transition must reflect underlying changes in the cellular structures necessary for pigment granule saltations.
(18) Trichocyst saltations end with either cortical insertion of the organelle, or return to cyclosis.
(19) Using acridine orange as a vital stain for acidic organelles, in combination with video-enhanced fluorescence microscopy, and subsequent immunolabeling with rabbit antibodies against ACTH, we have shown that these secretory granules move by saltations along the processes.
(20) This is the saltation phenomenon, and as presented in this theoretical note, it is a phenomenon which is easily accommodated by a theoretical rotation of space-time axes.