(n.) The act or motion of drifting; the force which impels or drives; an overpowering influence or impulse.
(n.) Course or direction along which anything is driven; setting.
(n.) The tendency of an act, argument, course of conduct, or the like; object aimed at or intended; intention; hence, also, import or meaning of a sentence or discourse; aim.
(n.) That which is driven, forced, or urged along
(n.) Anything driven at random.
(n.) A mass of matter which has been driven or forced onward together in a body, or thrown together in a heap, etc., esp. by wind or water; as, a drift of snow, of ice, of sand, and the like.
(n.) A drove or flock, as of cattle, sheep, birds.
(n.) The horizontal thrust or pressure of an arch or vault upon the abutments.
(n.) A collection of loose earth and rocks, or boulders, which have been distributed over large portions of the earth's surface, especially in latitudes north of forty degrees, by the agency of ice.
(n.) In South Africa, a ford in a river.
(n.) A slightly tapered tool of steel for enlarging or shaping a hole in metal, by being forced or driven into or through it; a broach.
(n.) A tool used in driving down compactly the composition contained in a rocket, or like firework.
(n.) A deviation from the line of fire, peculiar to oblong projectiles.
(n.) A passage driven or cut between shaft and shaft; a driftway; a small subterranean gallery; an adit or tunnel.
(n.) The distance through which a current flows in a given time.
(n.) The angle which the line of a ship's motion makes with the meridian, in drifting.
(n.) The distance to which a vessel is carried off from her desired course by the wind, currents, or other causes.
(n.) The place in a deep-waisted vessel where the sheer is raised and the rail is cut off, and usually terminated with a scroll, or driftpiece.
(n.) The distance between the two blocks of a tackle.
(n.) The difference between the size of a bolt and the hole into which it is driven, or between the circumference of a hoop and that of the mast on which it is to be driven.
(v. i.) To float or be driven along by, or as by, a current of water or air; as, the ship drifted astern; a raft drifted ashore; the balloon drifts slowly east.
(v. i.) To accumulate in heaps by the force of wind; to be driven into heaps; as, snow or sand drifts.
(v. i.) to make a drift; to examine a vein or ledge for the purpose of ascertaining the presence of metals or ores; to follow a vein; to prospect.
(v. t.) To drive or carry, as currents do a floating body.
(v. t.) To drive into heaps; as, a current of wind drifts snow or sand.
(v. t.) To enlarge or shape, as a hole, with a drift.
(a.) That causes drifting or that is drifted; movable by wind or currents; as, drift currents; drift ice; drift mud.
Example Sentences:
(1) Electromagnetic flow probes with an inner diameter of 2, 1.5 and 1 nm were used for studies on zero-line drifting and for calibration procedures in a series of rats and rabbits.
(2) It is microcomputer-based, and more easily set up and administered than the drifting-text procedure.
(3) The signals were processed digitally using three different algorithms: 1) simple linear regression (LR); 2) linear regression with drift correction achieved by adding to, or subtracting from the plethysmographic signal a term proportional to time (LRC); 3) Fourier analysis (FFT).
(4) Abducting saccades, which were slightly hypometric, displayed a marked postsaccadic centripetal drift.
(5) With these stringent criteria the rejection rate was 71.0% for group A records, 58.5% for group B and 44.5% for group C. The proportions of records with peak quality (no missing leads or clipping, and grade 1 noise, lead drift or beat-to-beat drift) were 4.5% for group A, 5.5% for group B and 23.0% for group C. Suggested revisions in the grading of technical quality of ECGs are presented.
(6) However, there is no certainty that both of Ainu and the people in Ueno derived from the same origin, or that genetic drift due to endogamy in this village took place.
(7) Efforts to obtain long term, reliable direct measurements of blood pressures have not been successful because of blood clotting impairing the function of sensors, baseline drift, artifacts on measurements, and health hazard-related catheterization.
(8) downward occupational and downward social drift, premature retirement and achievement of the expected social development.
(9) Both sides agree that antigenic diversity is advantageous although selectionists see benefits in individual mutations whereas the proponents of random genetic drift see the advantage in the parasite's capacity to tolerate diversity per se.
(10) Acuity for the direction of drift for these stimuli is of the same order of precision as orientation acuity for static or drifting gratings, and exhibits a meridional anisotropy that favours the principal meridians.
(11) The most parsimonious explanation of this result is that much genetic drift accompanied the establishment of local populations in cities and that there has been little subsequent gene flow.
(12) In contrast, in women, time period effects were a significant improvement on drift for melanoma of the trunk and lower extremity.
(13) We examined the effect of ethylene glycol (EG) concentration, in water, on O2 sensitivity, stirring effect, in vitro drift, in vitro response time, behaviour on the skin of newborn infants and in vivo response time.
(14) When inflation was allowed to drift from 2% to 4% in the 1970s, inflation expectations became unanchored altogether, and price growth far exceeded 4%.
(15) Diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy was used to characterize the product of each step in the preparation of a silica-immobilized N-hydroxysuccinimide (NHS) active ester.
(16) She had attitude to burn, though, while the Bristol crew were content to drift, their work rate informed by the slow pace of their native city and by what might be called the spliff consciousness that determined not just the bass-heavy pulse of their music but the worldview of their lyrics, which often tended towards the insular and the paranoid.
(17) Let’s make sure it’s not on the usual plane of politics and point-scoring and pettiness that drifts away in the next news cycle.
(18) The ABO and Rh systems of the population in 26 residential units in the province of Ferrara were studied to detect the effect of genetic drift on the differentiation of gene frequencies.
(19) After the army, Page drifted between jobs and played in white power bands.
(20) Evidence of genetic drift of serologic types and of some increase in the prevalence of erythromycin-resistant strains has appeared.
Miocene
Definition:
(a.) Of or pertaining to the middle division of the Tertiary.
(n.) The Miocene period. See Chart of Geology.
Example Sentences:
(1) The functional and phyletic significance of this material reveals a complex pattern of behavioral and phyletic diversity among large-bodied catarrhines in Europe and suggests that this diversity evolved in situ from circum-Mediterranean middle Miocene ancestors.
(2) Miocene hominoids from Europe are among the earliest members of the great ape and human clade (the Hominidae).
(3) We report here the discovery of a Miocene hominoid from Berg Aukas, Namibia, the first known from the African continent south of equatorial East Africa.
(4) This represents a major range extension of Miocene Hominoidea in Africa to latitude 20 degrees S. The holotype, a right mandibular corpus preserving the crowns of the P4-M3, partial crown and root of the P3, partial root of the canine, alveoli for all four incisors, and partial alveolus for the left canine, was found during paleontological explorations of karst-fill breccias in the Otavi region of northern Namibia.
(5) This species shows striking dental similarities to Pliopithecus from the Miocene of Europe and a number of cranial similarities to extant gibbons.
(6) Further work has indicated that analysis of Miocene fossil DNA can be replicated, and can, therefore, open up the prospects for future development of the field of molecular palaeontology.
(7) The extant New World monkey lineages are then seen as sharing a long period of common ancestry subsequent to that divergence, with their radiation beginning in the early Miocene.
(8) Previous studies indicated that the ability of one-dimensional electrophoresis to resolve relationships between distantly related taxa extended to about the Miocene [25 million years (Myr) ago], but the present study demonstrates that two-dimensional electrophoresis is a useful indicator of phylogeny even back to the Paleocene (65 Myr ago).
(9) During the later Palaeocene and early Miocene, catarrhine primates and the evolving hominoids had adaptations for frugivorous diets, with the emphasis on soft foods.
(10) Thus, among known Miocene ape species it has the greatest demonstrated potential to be near the line of ancestry of the modern gibbon and siamang.
(11) The enamel in the upper canine of a late Miocene astrapothere lacks decussation but may have resisted cracking under varied loading conditions by virtue of a 3-dimensional wavelike bending of the prisms.
(12) The La Ventan Aotus is additional support for the idea that the modern platyrrhine radiation includes long-lived genera or generic lineages, some of which may be traceable to the early Miocene, 20 Myr BP.
(13) My aim here is to evaluate the usefulness of enamel thickness and microstructure as characteristics for determining the relationships of the later Miocene hominoids, based both on a quantitative study of enamel thickness in extant hominoids and four species of later Miocene Sivapithecus (including 'Ramapithecus') and on scanning electron microscope analysis of enamel microstructure.
(14) However, the validity of this report has been questioned based on models predicting that DNA should be completely degraded after 4 million yr. We report here the successful amplification, sequencing, and analysis of a 1320-base-pair portion of the chloroplast gene rbcL from a Miocene Taxodium specimen, also from the Clarkia site.
(15) Recent paleontological collections at the middle Miocene locality of Maboko Island in Kenya, dated at 15-16 million years, have yielded numerous new specimens belonging to at least five species of fossil anthropoids.
(16) A stratigraphically oriented series of the Miocene foraminiferal species Brizalina mandoroveensis from Ikang, Cameroon, was analyzed both by conventional multivariate morphometric procedures and by the tensor biometric method of Bookstein (1986; Statist, Sci.
(17) This paper presents a revised view of the positional implications of late Miocene hominid fossils and considers some of the taxonomic and phyletic implications of these specimens.
(18) Methods used included SEM of methacrylate casts of marsupial enamel tubules, worn and cut surfaces of whole marsupial teeth, developing and erupted platypus teeth, and a well-developed molar of the newly discovered Miocene ornithorhynchid Obdurodon sp., and tandem scanning reflected light microscopy of intact marsupial teeth.
(19) Primate scapula and ulna fragments of uncertain taxonomic affinity (MACN-SC 101) have been recovered from the Pinturas deposits at Arroyo Feo, Santa Cruz, Argentina in association with Santacrucian (Early Miocene) land mammals.
(20) New humeri of two species of the Miocene hominoid Sivapithecus are described from near Chinji in Pakistan from between approximately 9 and 11 Myr ago.