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sterile

sterile

sterile Sentence Examples

  • The sterile scent tickled Brady's nostrils.

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  • She is a sterile flower, you know--like some strawberry blossoms.

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  • It doesn't have to be sterile for us.

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  • She followed, uninterested in the sterile glass and stainless steel landscape.

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  • On the higher elevations it is generally stony and sterile, but in the valleys and on many of the lower hills, where it consists largely of clay and sand, it is quite productive.

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  • He described it as barren and sterile, and almost devoid of animals, the only one of any importance somewhat resembling a raccoon - a strange creature, which advanced by great bounds or leaps instead of walking, using only its hind legs, and covering 12 or 15 ft.

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  • The attendant ushered them into a sterile room of white tile and stainless steel.

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  • The single species, which is a native of western and southern Australia, is about the size of an English squirrel, to which its long bushy tail gives it some resemblance; but it lives entirely on the ground, especially in sterile sandy districts, feeding on ants.

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  • Sterile was the word that came to mind.

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  • Sterile was the word that came to mind.

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  • The remainder of the department, with the exception of a more broken and picturesque district in the extreme north-west, forms part of the sterile and monotonous plain known as Champagne Pouilleuse.

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  • Alex was supposed to be sterile, but they had been wrong about that.

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  • Its surface is hilly, and its appearance (in many parts) somewhat sterile, though in the main, and especially in the neighbourhood of Lough Erne, it is picturesque and attractive.

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  • It sounds mechanical, sterile, and just a little bit un-American.

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  • Is he actually sterile, or is his count so low that conception is highly unlikely?

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  • He stared at the flowers, a sign of disorder in his otherwise sterile condo.

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  • His father, Zaccheus Greeley, owned a farm of 50 acres of stony, sterile land, from which a bare support was wrung.

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  • p, Pistillate, s, staminate flowers; h, sterile flowers forming a circlet of stiff hairs closing the mouth of the chamber formed by the lower part of the spathe.

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  • In their most primitive form they are seen in Velella as " gonosiphons," which possess mouths like the ordinary sterile siphons and bud free medusae.

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  • p, Pistillate, s, staminate flowers; h, sterile flowers forming a circlet of stiff hairs closing the mouth of the chamber formed by the lower part of the spathe.

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  • some passion-flowers and rhododendrons, in which a flower is more or less sterile with its own, but fertile with foreign pollen, even when this is from a distinct species.

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  • It really seemed that Sonya did not feel her position trying, and had grown quite reconciled to her lot as a sterile flower.

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  • The result was a deadlock; and, even before the promulgation of the Carlsbad decrees in October 1819 the grand-duke had prorogued the chambers, after three months of sterile debate.

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  • If sterile they remain attached and locomotor in function, forming the nectosome, the pneumatophore and swimming-bells.

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  • at least, and the deeper the better so as to bring up the subsoil - whether it be clay, sand, gravel, marl, &c. - Jor exposure to the weather and thus convert it from a sterile mass into a living soil teeming with bacteria.

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  • The advanced medical equipment and sterile scent in the air were the same.

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  • Eastward the plateau becomes still more sterile, and its elevation probably falls more rapidly till it reaches the level of the Jauf and Nejran valleys on the borders of the desert.

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  • In literature the second half of the 17th century is a sterile waste of forbidding theology; and its life, judged by the present day, singularly sombre.

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  • Milk and Disease.-Although the milk of a perfectly healthy cow may be absolutely sterile, it is difficult to obtain it in that condition.

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  • Its surroundings are bleak and sterile and its waters brackish and polluted with the drainage of the neighbouring city for nearly four centuries.

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  • It is often resorted to as a means of restoring fertility in plants which have become over rank from an excess of nourishment in the soil, or sterile from want of it.

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  • The greater part is a rock destitute of soil, and presenting the wildest aspect; the ground is cold, poor and sterile; and the whole face of the country bears marks of volcanic action.

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  • The terminal or first-formed proglottis is sterile, and contains the primitive and (except in a few genera) the only excretory pore.

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  • The lowland strip or Tehama consists partly of a gravelly plain, the Khabt, covered sparsely with acacia and other desert shrubs and trees, and furnishing pasturage for large flocks of goats and camels; and partly of sterile wastes of sand like the Ramla, which extends on either side of Aden almost from the seashore to the foot of the hills.

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  • The dorcas gazelle is still common in the south of Tunisia; but perhaps the most interesting ruminant is the magnificent udad, or Barbary sheep, which is found in the sterile mountainous regions of south Tunisia.

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  • Agriculture is the principal occupation of its inhabitants, though the soil is generally sterile and the rainfall uncertain and very light.

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  • It is indigenous to the south of Spain and the north of Africa (where it is known as Halfa or Alfa), and is especially abundant in the sterile and rugged parts of Murcia and Valencia, and in Algeria, flourishing best in sandy, ferruginous soils, in dry, sunny situations on the sea coast.

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  • To render milk sterile in the strict sense of the word it is necessary to raise it to a temperature of about 120° C. for twenty minutes.

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  • The lowland strip or Tehama consists partly of a gravelly plain, the Khabt, covered sparsely with acacia and other desert shrubs and trees, and furnishing pasturage for large flocks of goats and camels; and partly of sterile wastes of sand like the Ramla, which extends on either side of Aden almost from the seashore to the foot of the hills.

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  • After being well shaken, the liquid was poured into a sterile glass Petrie dish and covered with a moist and sterile bell-jar.

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  • flowers, male flowers, and sterile 3.

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  • Farms in the more sterile parts of New Hampshire were abandoned when the depleted soil and the old methods of agriculture made it impossible for owners or tenants to compete with western farmers.

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  • When this pruning is just brought to a balance with the vigour of the roots, the consequence is that fruit buds are formed all over the tree, instead of a thicket of sterile and useless wood.

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  • In the second case all roots that have struck downwards into a cold uncongenial subsoil must be pruned off if they cannot be turned in a lateral direction, and all the lateral ones that have become coarse and fibreless must also be shortened back by means of a clean cut with a sharp knife, while a compost of rich loamy soil with a little bone-meal, and leaf-mould or old manure, should be filled into the trenches from which the old sterile soil has been taken.

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  • Eastwards of this the great Kashgar depression, which includes the Tarim desert, separates Russia from the vast sterile highlands of Tibet; and a continuous series of desert spaces of low elevation, marking the limits of a primeval inland sea from the Sarikol meridional watershed to the Khingan mountains on the western borders of Manchuria, divide her from the northern provinces of China.

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  • Thence four marches, generally over a stony plateau dominated by bare, sterile mountains, brought them to Sana, where they received a cordial welcome from the imam, el Mandi Abbas.

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  • He was trying to delicately say that he was sterile.

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  • It seemed impossible that someone like Alex could be sterile.

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  • But how could she when she knew Alex was sterile?

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  • The medusabuds are either fertile or sterile.

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  • The great plain in Sheng-king is in many parts swampy, and in the neighbourhood of the sea, where the soil emits a saline exudation such as is also common in the north of China, it is perfectly sterile.

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  • The more or less dormant nitrogen and other constituents of the humus are made immediately available to the succeeding crop, but the capital of the soil is rapidly reduced, and unless the loss is replaced by the addition of more manures the land may become sterile.

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  • The hybrids thus produced are almost invariably sterile.

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  • The normal Castilian landscape is an arid and sterile steppe, with scarcely a tree or spring of water; and many even of the villages afford no relief to the eye, for they are built of sunburnt unbaked bricks, which share the dusty brownish-grey tint of the soil.

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  • Rees in 1871 produced the sterile thallus of a Collema from its constituents; later Stahl did the same for three species.

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  • size.) A, Sterile.

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  • Hybrids are sometimes less fertile than pure-bred species, and are occasionally quite sterile.

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  • monstrosum (Feather Hyacinth) bears sterile flowers broken up into a feather-like mass.

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  • The ascocarps can be distinguished into two portions, a mass of sterile or vegetative hyphae forming the main mass of the fruit bod y, and surrounding the fertile ascogenous hyphae which bear at their ends the asci.

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  • _ r, p, The sterile tissue from which jthe paraphyses h spring.

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  • before the formation of the st, Sterile cell.

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  • sterile cells; c, cystidium, closed sporophores or with operculum o.

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  • The shape is that of a truncated cone, interrupted on the west by the Valle del Bove, a huge sterile abyss, 3 m.

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  • Peat-moss of the most sterile character has been by this process covered with soil of the greatest fertility, and swamps which used to be resorted to for leeches are now, by the effects of warping, converted into firm and fertile fields.

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  • The Eifel presents a sterile, thinly-peopled plateau, covered by extensive moors in several places.

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  • Yet this period was by no means sterile in developments destined to produce momentous results.

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  • South of the Wadi Natron, and parallel to it, is a sterile valley called the Bahr-bela-Ma, or River without Water.

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  • Although, unlike so many other cells, thus early sterile for reproduction of their kind, they retain for longer than most cells a high power of individual growth.

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  • Steen Steensen Blicher (1782-1848) was a Jutlander, and preserved all through life the characteristics of his sterile and sombre fatherland.

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  • In Batrachospermum filaments arise from the carpogonium on all sides; in Chantransia and Scinaia on one side only; in Helminthora the filaments are enclosed in a dense mucilage; in Nemalion, prior to the formation of the filaments, a sterile segment is cut off below.

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  • Not even Riccia, with its rudimentary sporogonium, has so simple a corresponding stage as Bangia, for, while there is some amount of sterile tissue in Riccia, in Bangia the oospore completely divides to form carpospores.

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  • Excluding Bangiaceae, however, from consideration, the Euflorideae present in the product of the development of the oospore like Bryophyta a structure partly sterile and partly fertile.

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  • In the first volume, Le Regime seigneurial (1886), he depicts the triumph of individualism and anarchy, showing how, after Charlemagne's great but sterile efforts to restore the Roman principle of sovereignty, the great landowners gradually monopolized the various functions in the state; how society modelled on.

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  • The present system merely leads to the transmission of the sterile art of passing examinations.

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  • This region is in general sparsely watered and somewhat sterile.

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  • A man may know that mules are sterile and that the beast before him is a mule, and yet believe her to be in foal " not viewing the several truths in connexion."

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  • This anticipation was apparently sterile.

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  • Democritean physics without a calculus had necessarily proved sterile of determinate concrete results, and this was more than enough to ripen the naturalism of the utilitarian school into scepticism.

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  • Finally, it is on the whole in keeping with Mill's presuppositions to admit even in the case of the method of difference that in practice it is approximative and instructive, while the theoretical formula, to which it aims at approaching asymptotically as limit, if exact, is in some sense sterile.

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  • The middle zone of Ararat, 5000-11,500 ft., is covered with good pasture, the upper and lower zones are for the most part sterile.

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  • Tests made for several successive years by means of culture media and sterile plates, demonstrated the perfect bacteriologic purity of the air, first drawn into the caverns through myriads of rocky crevices that served as natural filters, then further cleansed by floating over the transparent springs and pools, and finally supplied to the inmates of the sanatorium.

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  • continuation of the Appalachian system; the soil is rather sterile, except in the river valleys; and the climate of the long winters is often severe.

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  • Sweet-peas raised in Calcutta from seed imported from England rarely blossom, and never yield seed; plants from French seed flower better, but are still sterile; but those raised from Darjeeling seed (originally imported from England) both flower and seed profusely.

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  • Many tracts, originally rocky and sterile, have been irrigated and converted into vineyards and plantations.

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  • The most fertile soil is found in the valleys of the Pregel and the Memel, but the southern slopes of the Baltic plateau and the district to the north of the Memel consist in great part of sterile moor, sand and bog.

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  • When these plants were examined they had small swellings or nodules on their roots, while those grown in sterile sand without soil-extract had no nodules.

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  • Cultures are made by transferring by means of a sterile platinum wire a little of the material containing the bacteria to the medium.

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  • In this method the bacteria are distributed in a gelatine or agar medium liquefied by heat, and the medium is then poured out on sterile glass plates or in shallow glass dishes, and allowed to solidify.

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  • and III., capable of either locomotion or fixation at will, were either differentiated into alternating generations of fixed sterile nutritive hydroids (scyphistomoids) and locomotor sexual medusoids, or abandoned the power of fixation in hypogenetic cases.

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  • Unfortunately these differences, growing out of the opposite policies of the two countries at the court of Madrid, increased in each succeeding year; and a constant but sterile rivalry was kept up, which ended in results more or less humiliating and injurious to both nations.

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  • The glaciation is also responsible for the poor soil of most of the state, for, although the rocks are the same crystallines which give good soils further south in unglaciated regions, all the decayed portions of the Maine rocks have been removed by glacial erosion, revealing fresh, barren rock over great areas, or depositing the rather sterile hard-pan as a thin coating in other places.

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  • The most sterile regions are on the mountains and along the coast.

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  • It has been argued, on the other hand, that not all such mixed breeds are permanent, and especially that the cross between Europeans and Australian indigenes is almost sterile; but this assertion, when examined with the care demanded by its bearing on the general question of hybridity, has distinctly broken down.

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  • Amphicarpum, native in the southeastern United States, has fertile cleistogamous spikelets on filiform runners at the base of the culm, those on the terminal panicle are sterile.

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  • In Setaria and allied genera the spikelet is subtended by an involucre of bristles or spines which represent sterile branches of the inflorescence.

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  • The spike of an inflorescence bears whorls of flowers at each node in the axils of concrescent bracts accompanied by numerous sterile hairs (paraphyses); in a male inflorescence numerous flowers occur at each node, while in a female inflorescence the number of flowers at each node is much smaller.

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  • S, Sterile half.

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  • 17, B and C, F), and the lower part, which serves only as food-reservoir for the growing embryo, may be termed the sterile half (fig.

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  • Each cone consists of an axis, on which numerous broad and thin bracts are arranged in regular rows; in the axil of each bract occurs a single flower; a male flower is enclosed by two opposite pairs of leaves, forming a perianth surrounding a central sterile ovule encircled by a ring of stamens united below, but free distally as short filaments, each of which terminates in a trilocular anther.

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  • The integument of the sterile ovule is prolonged above the nucellus as a spirally-twisted tube expanded at its apex into a flat stigma-like organ.

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  • The few who had taken the trouble to study Rumanian literature paid not the slightest attention to the vast MS. material accumulated during the years of the Phanariote dominion, and out of sheer ignorance and political bias condemned this period as sterile.

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  • 40) that Mecca lies in a sterile valley, and the old geographers observe that the whole Haram or sacred territory round the city is almost without cultivation or date palms, while fruit trees, springs, wells, gardens and green valleys are found immediately beyond.

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  • 8), the colony looks like a feather having a stem divisible into an upper moiety or rachis, bearing lateral central leaflets (pinnae), and a lower peduncle, which is sterile and imbedded in sand or mud.

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  • The prorachidial and metarachidial aspects of the rachis are sterile, but the sides or pararachides bear numerous daughter zooids of two kinds - (I) fully-formed autozooids, (2) small stunted siphonozooids.

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  • In some the sporangiophores stood midway between the sterile whorls, while in others they approached the whorl above or below.

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  • In Sphenophyllum fertile both the ventral lobes of the sporophyll (corresponding to the sporangiophores in other species) and the dorsal lobes, which in other species are sterile, were developed as peltate sporangiophores.

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  • That these three sterile segments, with their sporangiophores, are together comparable to one of the bracts of Sphenophyllum, with its sporangiophores, is shown by the vascular supply in each case being derived from a single leaf-trace, So far as is at present known, the Sphenophyllales were homosporous.

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  • The tapetum is derived from the layer of cells surrounding the sporogenous group. Short trabeculae of sterile tissue have been found to project into the cavity of the sporangium of some species.

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  • The cavities of the large sporangia were sometimes traversed by trabeculae of sterile tissue resembling those found in Isoetes.

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  • The cells composing the young sporangium are at first similar, but ultimately become differentiated into sterile trabeculae, which may stretch from the inner to the outer wall, and the mother-cells of the spores.

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  • 2, d), or more or less compound, the degree of branching in the sterile and fertile segments exhibiting a general parallelism.

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  • In the young spike, which arises when the leaf is still very small, a band of tissue derived from superficial cells is distinguishable along either side; this sporangiogenic band gives rise to the sporogenous groups, the sterile septa between them, and the outer walls of the sporangia.

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  • Thus there are a few 3 Ferns which climb, others are .8 water plants, while many, especially those which live as epiphytes, are more or less xerophytic. Some of the epiphytic forms (Polypodium quercifolium, Platycerium) have strongly dimorphic leaves, the sterile leaves serving in some cases to catch falling debris, and thus to provide the plant with soil.

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  • In Osmunda the region of the leaf which bears the sporangia has its lamina little developed; the leaf thus bears sterile and fertile pinnae, or, as in 0.

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  • cinnamomea, sterile and fertile leaves may be present.

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  • The sporangia are borne singly or in sori of two or three on the margin or under surface of leaves, the fertile pinnae of which differ more or less from the sterile segments.

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  • On this view the origin of the sporophyte is looked for in the gradual development of sterile tissue in the generation arising from the fertilized ovum, and a consequent postponement of spore-formation.

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  • At the base of each spikelet are two empty boat-shaped glumes or "chaff-scales," one to the right, the other to the left, and then a series of flowers, 2 to 8 in number, closely crowded together; the uppermost are abortive or sterile, - indeed, in some varieties only one or two of the flowers are fertile.

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  • The number of abortive or sterile spikelets at the top of the ear also varies: in some cases nearly all the spikelets are fertile, while in others several of the uppermost ones are barren.

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  • Besides the sterile and monotonous steppes, valuable only as pasture, and so sparsely populated that it is possible to travel for many hours without encountering any sign of human life except a primitive artesian well or a shepherd's hut, there are wide expanses of fen-country, regularly flooded in spring and autumn.

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  • The surface is sterile, naked and rugged, with bold, rocky ledges, and a most picturesque shore, the beauties of which have made it a favourite summer resort, much frequented by artists.

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  • The lowland, or Tehama, is hot and generally sterile; it contains oases, however, near the foot of the mountains, fertilized and irrigated by hill streams and supporting many large villages and towns.

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  • When bracts become united, and overlie each other in several rows, it often happens that the outer ones do not produce flowers, that is, are empty or sterile.

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  • The sterile bracts of the daisy occasionally produce capitula, and give rise to the hen-and-chickens daisy.

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  • - Spikelet of Oat (Avena sativa) laid open, showing the sterile bracts gl, gl, or empty glumes; g, the fertile or floral glume, with a dorsal awn a; p, the pale; fs, an abortive flower.

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  • (After W o s s i d l o.) a, Female flowers; b, male flowers; c, hairs representing sterile flowers.

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  • 72), one only of which contains pollen, the other being imperfectly developed and sterile.

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  • Stamens occasionally become sterile by the degeneration or non-development of the anthers, when they are known as staminodia, or rudimentary stamens.

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  • These basalts produce a very rich chocolate soil, and were it not for their influence, the greater part of what is now the most fertile part of the island would have been comparatively poor or altogether sterile.

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  • Fructifications have often been found in connexion with leafy shoots, and the anatomical structure of the axis in sterile and fertile specimens has proved a valuable means of identification.

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  • Almost all strobili of the Calamarieae are constructed on the same general lines as those of Equisetum, with which some agree exactly; in most, however, the organization was more complex, the complexity consisting in the intercalation of whorls of sterile bracts, between those of the sporangiophores.

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  • Here, as in the previous genus, sterile and fertile verticils are ranged alternately on the axis of the cone.

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  • Other cones, however, namely, those known as Pothocites, have also been attributed on good grounds to the genus Archaeocalamites; they are long strobili, constricted at intervals, and it is probable that the succession of fertile sporangiophores was interrupted here and there by the intercalation of sterile bracts, which may also have been present, at long intervals, in Renault's species.

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  • Thus the sterile bracts of other species are here replaced by sporangium-bearing organs.

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  • Sp.a, Section through sterile segPeltate expansions of sporanments.

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  • st, Laminae of sterile segments.

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  • The dorsal segments are sterile, corresponding to the bracts of Sphenophyllum Dawsoni, while the ventral segments constitute peltate sporangiophores, each bearing four sporangia, just as in a ax FIG.

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  • There is evidence that the stem in some species was a climbing one; the pinnate leaves, arranged on the stem in a two-fifths spiral, were dimorphic, the sterile fronds resembling some forms of (From a drawing by Mrs D.

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  • Fertile leaflets, day, while fern like in habit bearing sporangia, and sterile, were Cycadean in structure.

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  • These fossil Hepaticae are unfortunately founded only on sterile fragments, and placed in the Liverworts on the strength of their resemblance to the thallus of Marchantia and other recent genera.

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  • Palaeobotanical literature contains several records of species of -Lycopodites and Selaginellites; Lycopo- nearly all of them are sterile fragments, bearing a more diates.

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  • Among the large number of Mesozoic Ferns there are several species founded on sterile fronds which possess but little interest Filicales, from a botanical standpoint.

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  • 5, A), a characteristic Yorkshire fossil of Jurassic age, which in the form of the frond, bearing broad and relatively short pinnae, exhibits a striking agreement with the sterile portions of the fronds of Aneimia rotundifolia, a member of the fern family Schizaeaceae.

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  • Leaving out of account the numerous sterile fronds which cannot be certainly referred to particular families of Ferns, there are several genera which bear evidence in their sori, and to some extent in the form of the leaf, of their relationship to existing types.

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  • Bipinnate sterile fronds of Todites have in some instances been described under the designation Pecopteris whitbiensis.

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  • names are sterile, and can not be assigned to a particular family, but some are undoubtedly sporangia with an apical annulus (" monangic sori " of Prantl) on either side of the midrib.

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  • The numerous species of fronds from Jurassic and Wealden rocks of North America and Europe referred to Thyrsopteris, a recent monotypic genus confined to Juan Fernandez, are in the majority of cases founded on sterile leaves, and of little or no botanical value.

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  • The majority of the specimens included in the genus Cladophlebis, the Mesozoic representative of the Palaeozoic Pecopteris type of frond, are known only in a sterile condition, and cannot be assigned to their family position.

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  • In most cases we have only the evidence of sterile fronds, and this is necessarily unsatisfactory; but the occurrence of numerous stems and fertile shoots demonstrates the wealth of Cycadean plants in many parts of the world, more particularly during the Jurassic and Wealden periods.

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  • pedicels occur sterile appendages consisting of slender stalks, terminating in distal expansions, which form a fleshy covering over the surface of the flower, leaving small apertures immediately above the micropyles for the entrance of the pollen-grains.

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  • The part which lies within the Arctic Circle is very desolate and sterile, consisting chiefly of sand and reindeer moss.

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  • Alex was supposed to be sterile, but they had been wrong about that.

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  • The advanced medical equipment and sterile scent in the air were the same.

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  • She followed, uninterested in the sterile glass and stainless steel landscape.

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  • It doesn't have to be sterile for us.

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  • He was trying to delicately say that he was sterile.

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  • The sterile scent tickled Brady's nostrils.

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  • The attendant ushered them into a sterile room of white tile and stainless steel.

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  • It seemed impossible that someone like Alex could be sterile.

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  • Is he actually sterile, or is his count so low that conception is highly unlikely?

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  • But how could she when she knew Alex was sterile?

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  • He stared at the flowers, a sign of disorder in his otherwise sterile condo.

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  • Simple database search solutions can be sterile, removing the possibility of serendipity.

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  • Alternatively, sterile clear pots can be bought, and sterile agar can be poured into them.

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  • Ameba Proteus References:- Harrison, D. (1957) A technique for obtaining clone cultures of soil amoebae in sterile liquid medium.

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  • Its effect on Pharaoh's ants is to make the queen lay sterile eggs.

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  • anxiolytic drugs, diazepam or buspirone, or sterile saline.

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  • A small volume of sterile water is instilled and then aspirated into a syringe.

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  • Control measures will include insect attractants, pesticides and the Sterile Insect Technique.

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  • balancer chromosomes carry lethal or sterile mutations, so only the heterozygous embryos develop into fertile adults, allowing propagation of the balanced stock.

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  • This near darkness, these utterly barren, sterile conditions is their home for over a month - about one-fifth of their lives.

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  • A clear, oily, sterile, solution for injection containing 0.2 mg estradiol benzoate per ml.

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  • Occasional patch of sterile brome (suspects from contractors combine ).

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  • Add the volume of sterile broth shown in Row A in the table below to each tube.

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  • Her central argument being that a general strike is not a sterile demand, artificially created in the minds of timid trade union bureaucrats.

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  • clayey silt layer that seems to overly possibly sterile orange clay.

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  • clubby atmosphere at CAF " CONC " this much bigger hail was more sterile.

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  • The bone should be finally packaged in a double sterile container.

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  • decapitated larvae of many insects can survive for over a year under sterile conditions.

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  • A local sterile field must be created using sterile drapes.

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  • There's everything from plasters and ice packs to bandages & sterile dressings.

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  • eat with dirty cutlery, even if the deposits were shown to be sterile?

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  • A clear, oily, sterile, solution for injection containing 0.2 mg estradiol benzoate per ml.

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  • The wound may also be cleaned with 0.9% sterile saline to remove any wound exudate.

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  • The numerous sterile florets are large almost engulfing the center cluster of fertile flowers.

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  • The film then cuts sharply to a sterile mortuary and the rough face of ranch foreman Pete Perkins (Tommy Lee Jones ).

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  • Again sterile fronds are sent up first, then later in the year the fertile fronds appear.

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  • Of course they may not be sterile in the sense of not being able to produce gametes.

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  • Clean with a mild soap and water, dry carefully, then cover with sterile gauze.

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  • Using a sterile dressing pack and sterile gloves, thoroughly swab the distal end of the catheter and cap with Betadine and methylated spirits.

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  • Blood Chromosome Analysis This is performed on a 5-10ml fresh, sterile sample of venous blood in a lithium heparin container.

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  • In the past it has been assumed that because the two species produce sterile hybrids, the wild species is not threatened.

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  • sterile inoculants (peat and liquids) have higher concentrations of pure viable rhizobia.

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  • inoculated with sterile distilled water, showed no symptoms.

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  • irradiated with gamma radiation in fly factories, which renders them sterile but otherwise leaves them reproductively active.

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  • It is then pasteurized to make a sterile product and dispensed into a sealed metal keg.

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  • Sadly the pool has become almost sterile following the destruction of the once rich adjacent meadowland.

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  • Is this her way of turning herself into a dull monotone, freeing herself from my sterile posing?

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  • The film then cuts sharply to a sterile mortuary and the rough face of ranch foreman Pete Perkins (Tommy Lee Jones ).

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  • mycelium plugs were put on the hypocotyl, which was previously wounded with a sterile scalpel.

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  • Minimal needling was done using 0.25 by 30mm sterile disposable needles.

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  • The reproduction part of craft origami is not a sterile process.

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  • The procedure must be performed under sterile conditions to avoid causing osteomyelitis.

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  • Label five sterile petri dishes appropriately each time and repeat this procedure with the other sterile liquids.

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  • pinprick sensation using a sterile needle.

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  • All surgical procedures will be done under general anesthesia using sterile techniques, followed by recovery.

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  • AUDICLEAN remains sterile between uses and, as it contains no gas propellants, is delivered at room temperature, for your complete comfort.

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  • ameba Proteus References:- Harrison, D. (1957) A technique for obtaining clone cultures of soil amoebae in sterile liquid medium.

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  • The pustules are known as sterile pustules as they do not have infection within them.

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  • reconstituted with 1.5 ml of 0.9% sterile saline R, DB.

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  • reseda lutea and odorata, many individuals sterile with their own pollen.

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  • rinse with the water fed poles to leave the glass totally sterile.

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  • No help to fell onto sterile like rutherford he.

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  • This is best done with warmed, sterile saline or even tap water.

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  • The wound may also be cleaned with 0.9% sterile saline to remove any wound exudate.

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  • Final cut should be made with a sterile scalpel or clean sharp razor blade just below a node or leaf junction.

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  • sidetracked into these sterile arguments about homosexuality.

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  • stamens in two groups, sensitive; Plants self sterile.

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  • These technologies either render crops sterile or control their genetic traits via chemicals.

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  • When you use one you should try to keep the catheter tip sterile and some departments like you to wear a sterile glove.

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  • The style or presentation is also being revised to hopefully make the standards less sterile, or putting it plainly - boring.

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  • sterile saline should be replaced by tap water for the cleaning of acute soft tissue wounds.

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  • sterile gauze.

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  • sterile florets on long pedicels surround central cluster of fertile flowers, rather suggestive of a starburst.

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  • sterile dressings.

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  • sterile needles.

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  • A local sterile field must be created using sterile drapes.

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  • This sealed several archeologically sterile layers of coarse angular sands alternating with fine organic rich silts, possibly turf lines.

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  • But again high eighteenth-century oligarchical politics, Walpole and after, was rather sterile: factions rather than parties.

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  • The soil either side of the drainage system [400] appears to be completely sterile; no artifacts or ephemeral deposits were noticed.

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  • In an increasingly sterile world people seem to be reluctant to take risks.

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  • The glass is then given a final rinse with the water fed poles to leave the glass totally sterile.

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  • Bacteriuria: the presence of bacteria in the urine (normally sterile ); not contaminants from the skin, vagina, or prepuce.

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  • The trade union of a sect renders sterile those tempted by it.

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  • The poisonous residues destroyed the environment so badly that even today certain places in the valley remain sterile.

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  • Even the landscapes within which we play seemed sterile, for all the minutiae of the graphics.

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  • Most of Africa's soil is in danger of becoming sterile.

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  • Ideal for use where hands need to be kept sterile.

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  • Technicians ' information Assuming 15 working groups Preparation consists of preparing sufficient nutrient agar plates and sterile swabs.

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  • tonometer heads should then be rinsed thoroughly in sterile saline or boiled water and wiped dry.

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  • In reality, a number of studies suggest that sterile triploids are " leaky ", and some fertile gametes are sometimes produced.

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  • A number of flasks containing a nutrient medium were each inoculated with one drop of this mixture; it was found that some remained sterile, and Lister assumed that the remaining flasks each contained a pure culture.

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  • He introduced bacteria into liquid sterile nutrient gelatin.

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  • After being well shaken, the liquid was poured into a sterile glass Petrie dish and covered with a moist and sterile bell-jar.

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  • E, Dry spores showing the ex F, Sterile vegetative shoot.

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  • Some shoots are sterile while others are fertile, bearing at the apex the so-called fructification - a dense oval, oblong conical or cylindrical spike, consisting of a number of shortly-stalked peltate scales, each of which has attached to its under surface a circle of spore-cases (sporangia) which open by a longitudinal slit on their inner side.

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  • In most species the fertile and sterile shoots are alike, both being green and leaf-bearing, but in a few species the fertile are more or less different, e.g.

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  • The single species, which is a native of western and southern Australia, is about the size of an English squirrel, to which its long bushy tail gives it some resemblance; but it lives entirely on the ground, especially in sterile sandy districts, feeding on ants.

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  • He described it as barren and sterile, and almost devoid of animals, the only one of any importance somewhat resembling a raccoon - a strange creature, which advanced by great bounds or leaps instead of walking, using only its hind legs, and covering 12 or 15 ft.

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  • On the higher elevations it is generally stony and sterile, but in the valleys and on many of the lower hills, where it consists largely of clay and sand, it is quite productive.

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  • Its surface is hilly, and its appearance (in many parts) somewhat sterile, though in the main, and especially in the neighbourhood of Lough Erne, it is picturesque and attractive.

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  • The surrounding country, though naturally sterile, is irrigated from two adjacent springs, which differ in temperature by no less than 25° F.

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  • In their most primitive form they are seen in Velella as " gonosiphons," which possess mouths like the ordinary sterile siphons and bud free medusae.

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  • The medusabuds are either fertile or sterile.

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  • If sterile they remain attached and locomotor in function, forming the nectosome, the pneumatophore and swimming-bells.

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  • The remainder of the department, with the exception of a more broken and picturesque district in the extreme north-west, forms part of the sterile and monotonous plain known as Champagne Pouilleuse.

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  • Goebel has shown that if the developing foliage-leaves of the fern Onoclea strut/iiopieris be removed as they are formed, the subsequently developed sporophylls assume more or less completely the habit of foliage-leaves, and may be sterile.

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  • 3), the third being sterile and forming the rostellum which plays an important part in the process of pollination, often forming a peculiar pouch-like process (fig.

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  • Eastwards of this the great Kashgar depression, which includes the Tarim desert, separates Russia from the vast sterile highlands of Tibet; and a continuous series of desert spaces of low elevation, marking the limits of a primeval inland sea from the Sarikol meridional watershed to the Khingan mountains on the western borders of Manchuria, divide her from the northern provinces of China.

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  • The great plain in Sheng-king is in many parts swampy, and in the neighbourhood of the sea, where the soil emits a saline exudation such as is also common in the north of China, it is perfectly sterile.

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  • The surrounding country is a sterile and gloomy wilderness exposed to the cold and blighting blasts of the Sierra.

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  • The greater part is a rock destitute of soil, and presenting the wildest aspect; the ground is cold, poor and sterile; and the whole face of the country bears marks of volcanic action.

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  • grassy steppes merging ere long into desert, and on the other quarters rather sterile downs.

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  • The terminal or first-formed proglottis is sterile, and contains the primitive and (except in a few genera) the only excretory pore.

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  • The more or less dormant nitrogen and other constituents of the humus are made immediately available to the succeeding crop, but the capital of the soil is rapidly reduced, and unless the loss is replaced by the addition of more manures the land may become sterile.

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  • The immediate environs are very fertile and produce a great variety of fruits, including many of the temperate zone, but the surrounding country is arid and sterile, producing scanty crops of barley, Indian corn and pease.

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  • Thence four marches, generally over a stony plateau dominated by bare, sterile mountains, brought them to Sana, where they received a cordial welcome from the imam, el Mandi Abbas.

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  • The surface of the harra is extremely broken, forming a labyrinth of lava crags and blocks of every size; the whole region is sterile and almost waterless, and compared with the Nafud it produces little vegetation; but it is resorted to by the Bedouin in the spring and summer months when the air is always fresh and cool.

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  • Eastward the plateau becomes still more sterile, and its elevation probably falls more rapidly till it reaches the level of the Jauf and Nejran valleys on the borders of the desert.

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  • Outside the walls, over the sterile sand plateau, stretch great fields of tombs and graves, for Nejef is so holy that he who is buried here will surely enter paradise.

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  • The dorcas gazelle is still common in the south of Tunisia; but perhaps the most interesting ruminant is the magnificent udad, or Barbary sheep, which is found in the sterile mountainous regions of south Tunisia.

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  • Agriculture is the principal occupation of its inhabitants, though the soil is generally sterile and the rainfall uncertain and very light.

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  • The result was a deadlock; and, even before the promulgation of the Carlsbad decrees in October 1819 the grand-duke had prorogued the chambers, after three months of sterile debate.

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  • " Nothing more clearly demonstrates the sterile paradox of the Napoleonic work," it wrote, " than the history of the grand-duchy.

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  • flowers, male flowers, and sterile 3.

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  • In literature the second half of the 17th century is a sterile waste of forbidding theology; and its life, judged by the present day, singularly sombre.

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  • But whatever merits they had as clarifiers of turbid water, the advent of bacteriology, and the recognition of the fact that the bacteria of certain diseases may be water-borne, introduced a new criterion of effectiveness, and it was perceived that the removal of solid particles, or even of organic impurities (which were realized to be important not so much because they are dangerous to health per se as because their presence affords grounds for suspecting that the water in which they occur has been exposed to circumstances permitting contamination with infective disease), was not sufficient; the filter must also prevent the passage of pathogenic organisms, and so render the water sterile bacteriologically.

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  • His father, Zaccheus Greeley, owned a farm of 50 acres of stony, sterile land, from which a bare support was wrung.

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  • The hybrids thus produced are almost invariably sterile.

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  • The valley, known by the general name of Kakir, meaning a " hard, dry, sterile expanse of clay," is chequered with shallow selfcontained basins of the usual type and has remarkably gentle slopes ' The Northern Mountains are the Pe-shan in the desert of Gobi (see Gobi).

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  • It is indigenous to the south of Spain and the north of Africa (where it is known as Halfa or Alfa), and is especially abundant in the sterile and rugged parts of Murcia and Valencia, and in Algeria, flourishing best in sandy, ferruginous soils, in dry, sunny situations on the sea coast.

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  • Milk and Disease.-Although the milk of a perfectly healthy cow may be absolutely sterile, it is difficult to obtain it in that condition.

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  • To render milk sterile in the strict sense of the word it is necessary to raise it to a temperature of about 120° C. for twenty minutes.

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  • Profoundly troubled as Algeria was in the last years of the 19th century by the anti-Semitic agitation, which occasioned frequent changes of governors, it appears to-day to have turned aside from sterile political struggles to interest itself exclusively in the economic development of the country.

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  • Its surroundings are bleak and sterile and its waters brackish and polluted with the drainage of the neighbouring city for nearly four centuries.

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  • Farms in the more sterile parts of New Hampshire were abandoned when the depleted soil and the old methods of agriculture made it impossible for owners or tenants to compete with western farmers.

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  • Many farmers abandoned their sterile farms and made new homes in the West, where soil yielded larger returns for labour, and a foreign-born population, consisting largely of French Canadians, came to the cities in response to the demand for labour in the mills and factories.

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  • In the majority of Platyelmia the primitive ovary becomes divided into fertile and sterile portions, i.e.

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  • The normal Castilian landscape is an arid and sterile steppe, with scarcely a tree or spring of water; and many even of the villages afford no relief to the eye, for they are built of sunburnt unbaked bricks, which share the dusty brownish-grey tint of the soil.

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  • Rees in 1871 produced the sterile thallus of a Collema from its constituents; later Stahl did the same for three species.

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  • Later Bonnier (1886) succeeded in producing fertile thalli by sowing lichen spores and the appropriate algae upon sterile glass plates or portions of bark, and growing them in sterilized air (fig.

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  • size.) A, Sterile.

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  • some passion-flowers and rhododendrons, in which a flower is more or less sterile with its own, but fertile with foreign pollen, even when this is from a distinct species.

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  • Hybrids are sometimes less fertile than pure-bred species, and are occasionally quite sterile.

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  • at least, and the deeper the better so as to bring up the subsoil - whether it be clay, sand, gravel, marl, &c. - Jor exposure to the weather and thus convert it from a sterile mass into a living soil teeming with bacteria.

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  • When this pruning is just brought to a balance with the vigour of the roots, the consequence is that fruit buds are formed all over the tree, instead of a thicket of sterile and useless wood.

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  • It is often resorted to as a means of restoring fertility in plants which have become over rank from an excess of nourishment in the soil, or sterile from want of it.

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  • In the second case all roots that have struck downwards into a cold uncongenial subsoil must be pruned off if they cannot be turned in a lateral direction, and all the lateral ones that have become coarse and fibreless must also be shortened back by means of a clean cut with a sharp knife, while a compost of rich loamy soil with a little bone-meal, and leaf-mould or old manure, should be filled into the trenches from which the old sterile soil has been taken.

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  • monstrosum (Feather Hyacinth) bears sterile flowers broken up into a feather-like mass.

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  • The ascocarps can be distinguished into two portions, a mass of sterile or vegetative hyphae forming the main mass of the fruit bod y, and surrounding the fertile ascogenous hyphae which bear at their ends the asci.

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  • _ r, p, The sterile tissue from which jthe paraphyses h spring.

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  • before the formation of the st, Sterile cell.

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  • sterile cells; c, cystidium, closed sporophores or with operculum o.

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  • The shape is that of a truncated cone, interrupted on the west by the Valle del Bove, a huge sterile abyss, 3 m.

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  • Peat-moss of the most sterile character has been by this process covered with soil of the greatest fertility, and swamps which used to be resorted to for leeches are now, by the effects of warping, converted into firm and fertile fields.

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  • The Eifel presents a sterile, thinly-peopled plateau, covered by extensive moors in several places.

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  • Yet this period was by no means sterile in developments destined to produce momentous results.

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  • South of the Wadi Natron, and parallel to it, is a sterile valley called the Bahr-bela-Ma, or River without Water.

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  • Although, unlike so many other cells, thus early sterile for reproduction of their kind, they retain for longer than most cells a high power of individual growth.

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    0
  • Steen Steensen Blicher (1782-1848) was a Jutlander, and preserved all through life the characteristics of his sterile and sombre fatherland.

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  • In Batrachospermum filaments arise from the carpogonium on all sides; in Chantransia and Scinaia on one side only; in Helminthora the filaments are enclosed in a dense mucilage; in Nemalion, prior to the formation of the filaments, a sterile segment is cut off below.

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  • Not even Riccia, with its rudimentary sporogonium, has so simple a corresponding stage as Bangia, for, while there is some amount of sterile tissue in Riccia, in Bangia the oospore completely divides to form carpospores.

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    0
  • Excluding Bangiaceae, however, from consideration, the Euflorideae present in the product of the development of the oospore like Bryophyta a structure partly sterile and partly fertile.

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    0
  • In the first volume, Le Regime seigneurial (1886), he depicts the triumph of individualism and anarchy, showing how, after Charlemagne's great but sterile efforts to restore the Roman principle of sovereignty, the great landowners gradually monopolized the various functions in the state; how society modelled on.

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  • The present system merely leads to the transmission of the sterile art of passing examinations.

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  • This region is in general sparsely watered and somewhat sterile.

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  • A man may know that mules are sterile and that the beast before him is a mule, and yet believe her to be in foal " not viewing the several truths in connexion."

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  • This anticipation was apparently sterile.

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  • Democritean physics without a calculus had necessarily proved sterile of determinate concrete results, and this was more than enough to ripen the naturalism of the utilitarian school into scepticism.

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  • Finally, it is on the whole in keeping with Mill's presuppositions to admit even in the case of the method of difference that in practice it is approximative and instructive, while the theoretical formula, to which it aims at approaching asymptotically as limit, if exact, is in some sense sterile.

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  • The middle zone of Ararat, 5000-11,500 ft., is covered with good pasture, the upper and lower zones are for the most part sterile.

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  • Tests made for several successive years by means of culture media and sterile plates, demonstrated the perfect bacteriologic purity of the air, first drawn into the caverns through myriads of rocky crevices that served as natural filters, then further cleansed by floating over the transparent springs and pools, and finally supplied to the inmates of the sanatorium.

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  • continuation of the Appalachian system; the soil is rather sterile, except in the river valleys; and the climate of the long winters is often severe.

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  • Sweet-peas raised in Calcutta from seed imported from England rarely blossom, and never yield seed; plants from French seed flower better, but are still sterile; but those raised from Darjeeling seed (originally imported from England) both flower and seed profusely.

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  • Many tracts, originally rocky and sterile, have been irrigated and converted into vineyards and plantations.

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    0
  • The most fertile soil is found in the valleys of the Pregel and the Memel, but the southern slopes of the Baltic plateau and the district to the north of the Memel consist in great part of sterile moor, sand and bog.

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    0
  • When these plants were examined they had small swellings or nodules on their roots, while those grown in sterile sand without soil-extract had no nodules.

    0
    0
  • Cultures are made by transferring by means of a sterile platinum wire a little of the material containing the bacteria to the medium.

    0
    0
  • In this method the bacteria are distributed in a gelatine or agar medium liquefied by heat, and the medium is then poured out on sterile glass plates or in shallow glass dishes, and allowed to solidify.

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    0
  • and III., capable of either locomotion or fixation at will, were either differentiated into alternating generations of fixed sterile nutritive hydroids (scyphistomoids) and locomotor sexual medusoids, or abandoned the power of fixation in hypogenetic cases.

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  • Unfortunately these differences, growing out of the opposite policies of the two countries at the court of Madrid, increased in each succeeding year; and a constant but sterile rivalry was kept up, which ended in results more or less humiliating and injurious to both nations.

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    0
  • The glaciation is also responsible for the poor soil of most of the state, for, although the rocks are the same crystallines which give good soils further south in unglaciated regions, all the decayed portions of the Maine rocks have been removed by glacial erosion, revealing fresh, barren rock over great areas, or depositing the rather sterile hard-pan as a thin coating in other places.

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  • The most sterile regions are on the mountains and along the coast.

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  • It has been argued, on the other hand, that not all such mixed breeds are permanent, and especially that the cross between Europeans and Australian indigenes is almost sterile; but this assertion, when examined with the care demanded by its bearing on the general question of hybridity, has distinctly broken down.

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  • Amphicarpum, native in the southeastern United States, has fertile cleistogamous spikelets on filiform runners at the base of the culm, those on the terminal panicle are sterile.

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    0
  • In Setaria and allied genera the spikelet is subtended by an involucre of bristles or spines which represent sterile branches of the inflorescence.

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    0
  • The spike of an inflorescence bears whorls of flowers at each node in the axils of concrescent bracts accompanied by numerous sterile hairs (paraphyses); in a male inflorescence numerous flowers occur at each node, while in a female inflorescence the number of flowers at each node is much smaller.

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  • S, Sterile half.

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    0
  • 17, B and C, F), and the lower part, which serves only as food-reservoir for the growing embryo, may be termed the sterile half (fig.

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  • Each cone consists of an axis, on which numerous broad and thin bracts are arranged in regular rows; in the axil of each bract occurs a single flower; a male flower is enclosed by two opposite pairs of leaves, forming a perianth surrounding a central sterile ovule encircled by a ring of stamens united below, but free distally as short filaments, each of which terminates in a trilocular anther.

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  • The integument of the sterile ovule is prolonged above the nucellus as a spirally-twisted tube expanded at its apex into a flat stigma-like organ.

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    0
  • The few who had taken the trouble to study Rumanian literature paid not the slightest attention to the vast MS. material accumulated during the years of the Phanariote dominion, and out of sheer ignorance and political bias condemned this period as sterile.

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  • 40) that Mecca lies in a sterile valley, and the old geographers observe that the whole Haram or sacred territory round the city is almost without cultivation or date palms, while fruit trees, springs, wells, gardens and green valleys are found immediately beyond.

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  • 8), the colony looks like a feather having a stem divisible into an upper moiety or rachis, bearing lateral central leaflets (pinnae), and a lower peduncle, which is sterile and imbedded in sand or mud.

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  • The prorachidial and metarachidial aspects of the rachis are sterile, but the sides or pararachides bear numerous daughter zooids of two kinds - (I) fully-formed autozooids, (2) small stunted siphonozooids.

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  • In some the sporangiophores stood midway between the sterile whorls, while in others they approached the whorl above or below.

    0
    0
  • In Sphenophyllum fertile both the ventral lobes of the sporophyll (corresponding to the sporangiophores in other species) and the dorsal lobes, which in other species are sterile, were developed as peltate sporangiophores.

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  • That these three sterile segments, with their sporangiophores, are together comparable to one of the bracts of Sphenophyllum, with its sporangiophores, is shown by the vascular supply in each case being derived from a single leaf-trace, So far as is at present known, the Sphenophyllales were homosporous.

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  • The tapetum is derived from the layer of cells surrounding the sporogenous group. Short trabeculae of sterile tissue have been found to project into the cavity of the sporangium of some species.

    0
    0
  • The cavities of the large sporangia were sometimes traversed by trabeculae of sterile tissue resembling those found in Isoetes.

    0
    0
  • The cells composing the young sporangium are at first similar, but ultimately become differentiated into sterile trabeculae, which may stretch from the inner to the outer wall, and the mother-cells of the spores.

    0
    0
  • 2, d), or more or less compound, the degree of branching in the sterile and fertile segments exhibiting a general parallelism.

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    0
  • In the young spike, which arises when the leaf is still very small, a band of tissue derived from superficial cells is distinguishable along either side; this sporangiogenic band gives rise to the sporogenous groups, the sterile septa between them, and the outer walls of the sporangia.

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  • Thus there are a few 3 Ferns which climb, others are .8 water plants, while many, especially those which live as epiphytes, are more or less xerophytic. Some of the epiphytic forms (Polypodium quercifolium, Platycerium) have strongly dimorphic leaves, the sterile leaves serving in some cases to catch falling debris, and thus to provide the plant with soil.

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  • In Osmunda the region of the leaf which bears the sporangia has its lamina little developed; the leaf thus bears sterile and fertile pinnae, or, as in 0.

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  • cinnamomea, sterile and fertile leaves may be present.

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  • The sporangia are borne singly or in sori of two or three on the margin or under surface of leaves, the fertile pinnae of which differ more or less from the sterile segments.

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  • On this view the origin of the sporophyte is looked for in the gradual development of sterile tissue in the generation arising from the fertilized ovum, and a consequent postponement of spore-formation.

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  • At the base of each spikelet are two empty boat-shaped glumes or "chaff-scales," one to the right, the other to the left, and then a series of flowers, 2 to 8 in number, closely crowded together; the uppermost are abortive or sterile, - indeed, in some varieties only one or two of the flowers are fertile.

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  • The number of abortive or sterile spikelets at the top of the ear also varies: in some cases nearly all the spikelets are fertile, while in others several of the uppermost ones are barren.

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  • Besides the sterile and monotonous steppes, valuable only as pasture, and so sparsely populated that it is possible to travel for many hours without encountering any sign of human life except a primitive artesian well or a shepherd's hut, there are wide expanses of fen-country, regularly flooded in spring and autumn.

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  • The surface is sterile, naked and rugged, with bold, rocky ledges, and a most picturesque shore, the beauties of which have made it a favourite summer resort, much frequented by artists.

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  • The lowland, or Tehama, is hot and generally sterile; it contains oases, however, near the foot of the mountains, fertilized and irrigated by hill streams and supporting many large villages and towns.

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  • When bracts become united, and overlie each other in several rows, it often happens that the outer ones do not produce flowers, that is, are empty or sterile.

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  • The sterile bracts of the daisy occasionally produce capitula, and give rise to the hen-and-chickens daisy.

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  • In grasses the outer scales or glumes of the spikelets are sterile bracts (fig.

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  • - Spikelet of Oat (Avena sativa) laid open, showing the sterile bracts gl, gl, or empty glumes; g, the fertile or floral glume, with a dorsal awn a; p, the pale; fs, an abortive flower.

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  • (After W o s s i d l o.) a, Female flowers; b, male flowers; c, hairs representing sterile flowers.

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  • 72), one only of which contains pollen, the other being imperfectly developed and sterile.

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  • Stamens occasionally become sterile by the degeneration or non-development of the anthers, when they are known as staminodia, or rudimentary stamens.

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  • These basalts produce a very rich chocolate soil, and were it not for their influence, the greater part of what is now the most fertile part of the island would have been comparatively poor or altogether sterile.

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  • Fructifications have often been found in connexion with leafy shoots, and the anatomical structure of the axis in sterile and fertile specimens has proved a valuable means of identification.

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  • Almost all strobili of the Calamarieae are constructed on the same general lines as those of Equisetum, with which some agree exactly; in most, however, the organization was more complex, the complexity consisting in the intercalation of whorls of sterile bracts, between those of the sporangiophores.

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  • Here the whorls of peltate sporangiophores alternate regularly with those of sterile bracts, the former being inserted on the axis midway between the latter (fig.

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  • Here, as in the previous genus, sterile and fertile verticils are ranged alternately on the axis of the cone.

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  • The main difference is that in Palaeostachya the sporangiophores, instead of standing midway between the whorls of bracts, are inserted immediately above them, springing, as it were, from the axil of the sterile verticil (fig.

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  • Other cones, however, namely, those known as Pothocites, have also been attributed on good grounds to the genus Archaeocalamites; they are long strobili, constricted at intervals, and it is probable that the succession of fertile sporangiophores was interrupted here and there by the intercalation of sterile bracts, which may also have been present, at long intervals, in Renault's species.

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  • Thus the sterile bracts of other species are here replaced by sporangium-bearing organs.

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  • Sp.a, Section through sterile segPeltate expansions of sporanments.

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  • st, Laminae of sterile segments.

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  • The dorsal segments are sterile, corresponding to the bracts of Sphenophyllum Dawsoni, while the ventral segments constitute peltate sporangiophores, each bearing four sporangia, just as in a ax FIG.

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  • This was the case in Urnatopteris (Kidston), with Sphenopteroid sterile foliage; the sporangia, borne on the filiform pinnules of the fertile rachis, appear to have dehisced by an apical pore (fig.

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  • There is evidence that the stem in some species was a climbing one; the pinnate leaves, arranged on the stem in a two-fifths spiral, were dimorphic, the sterile fronds resembling some forms of (From a drawing by Mrs D.

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  • Fertile leaflets, day, while fern like in habit bearing sporangia, and sterile, were Cycadean in structure.

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  • These fossil Hepaticae are unfortunately founded only on sterile fragments, and placed in the Liverworts on the strength of their resemblance to the thallus of Marchantia and other recent genera.

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  • Palaeobotanical literature contains several records of species of -Lycopodites and Selaginellites; Lycopo- nearly all of them are sterile fragments, bearing a more diates.

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  • Among the large number of Mesozoic Ferns there are several species founded on sterile fronds which possess but little interest Filicales, from a botanical standpoint.

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  • 5, A), a characteristic Yorkshire fossil of Jurassic age, which in the form of the frond, bearing broad and relatively short pinnae, exhibits a striking agreement with the sterile portions of the fronds of Aneimia rotundifolia, a member of the fern family Schizaeaceae.

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  • Leaving out of account the numerous sterile fronds which cannot be certainly referred to particular families of Ferns, there are several genera which bear evidence in their sori, and to some extent in the form of the leaf, of their relationship to existing types.

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  • Bipinnate sterile fronds of Todites have in some instances been described under the designation Pecopteris whitbiensis.

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  • names are sterile, and can not be assigned to a particular family, but some are undoubtedly sporangia with an apical annulus (" monangic sori " of Prantl) on either side of the midrib.

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  • The numerous species of fronds from Jurassic and Wealden rocks of North America and Europe referred to Thyrsopteris, a recent monotypic genus confined to Juan Fernandez, are in the majority of cases founded on sterile leaves, and of little or no botanical value.

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  • The majority of the specimens included in the genus Cladophlebis, the Mesozoic representative of the Palaeozoic Pecopteris type of frond, are known only in a sterile condition, and cannot be assigned to their family position.

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  • In most cases we have only the evidence of sterile fronds, and this is necessarily unsatisfactory; but the occurrence of numerous stems and fertile shoots demonstrates the wealth of Cycadean plants in many parts of the world, more particularly during the Jurassic and Wealden periods.

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  • pedicels occur sterile appendages consisting of slender stalks, terminating in distal expansions, which form a fleshy covering over the surface of the flower, leaving small apertures immediately above the micropyles for the entrance of the pollen-grains.

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  • The part which lies within the Arctic Circle is very desolate and sterile, consisting chiefly of sand and reindeer moss.

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  • The pustules are known as sterile pustules as they do not have infection within them.

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  • Bejo Zaden BV Male sterile radicchio rosso The barnase gene from Bacillus amyloliquefaciens.

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  • Reconstituted with 1.5 ml of 0.9% sterile saline R, DB.

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  • Reseda lutea and odorata, many individuals sterile with their own pollen.

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  • The glass is then given a final rinse with the water fed poles to leave the glass totally sterile.

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  • No help to fell onto sterile like rutherford he.

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  • This is best done with warmed, sterile saline or even tap water.

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  • Final cut should be made with a sterile scalpel or clean sharp razor blade just below a node or leaf junction.

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  • Simple database search solutions can be sterile, removing the possibility of such serendipity.

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  • Lets concentrate on important matters and not get sidetracked into these sterile arguments about homosexuality.

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  • Add the reconstituted drotrecogin alfa (activated) into a prepared infusion bag of sterile 0.9% sodium chloride injection.

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  • Flower medium sized to large with funnel shaped receptacle, petals yellow; stamens in two groups, sensitive; Plants self sterile.

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  • These technologies either render crops sterile or control their genetic traits via chemicals.

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  • When you use one you should try to keep the catheter tip sterile and some departments like you to wear a sterile glove.

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  • The style or presentation is also being revised to hopefully make the standards less sterile, or putting it plainly - boring.

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  • They concluded that sterile saline should be replaced by tap water for the cleaning of acute soft tissue wounds.

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  • The relatively few double sterile florets on long pedicels surround central cluster of fertile flowers, rather suggestive of a starburst.

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  • They will then use several very fine sterile needles.

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  • This sealed several archeologically sterile layers of coarse angular sands alternating with fine organic rich silts, possibly turf lines.

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  • But again high eighteenth-century oligarchical politics, Walpole and after, was rather sterile: factions rather than parties.

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  • The soil either side of the drainage system [400] appears to be completely sterile; no artifacts or ephemeral deposits were noticed.

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  • In an increasingly sterile world people seem to be reluctant to take risks.

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  • Bacteriuria: the presence of bacteria in the urine (normally sterile); not contaminants from the skin, vagina, or prepuce.

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  • The trade union of a sect renders sterile those tempted by it.

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  • The poisonous residues destroyed the environment so badly that even today certain places in the valley remain sterile.

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  • Even the landscapes within which we play seemed sterile, for all the minutiae of the graphics.

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  • Most of Africa 's soil is in danger of becoming sterile.

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  • Ideal for use where hands need to be kept sterile.

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  • Technicians ' information Assuming 15 working groups Preparation consists of preparing sufficient nutrient agar plates and sterile swabs.

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  • For example, gene flow might be avoided by making GM crops sterile, but ' terminator ' technology has gained an ethical stigma.

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  • If this method is used, tonometer heads should then be rinsed thoroughly in sterile saline or boiled water and wiped dry.

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  • In reality, a number of studies suggest that sterile triploids are " leaky ", and some fertile gametes are sometimes produced.

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  • Due to the now widespread use of all-female or sterile triploid strains, spawning is uncommon.

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  • A suggested policy to address these concerns is the use of sterile triploid trout.

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  • The lenses come packaged in a sterile blister pack ready to go.

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  • Thinking about cages often makes people think of dirty or very sterile conditions that wouldn't be much fun to keep a pet in.

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  • Many shelters and humane societies give their adoptable pets names so they have something other than a sterile file number to refer to them by.

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  • Adult cats may also become sterile after contracting the disease.

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  • If the splinter is close to the surface, carefully remove with sterile tweezers.

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  • This lessens the sterile, clinical feel that often pervades traditional, sparse bathrooms.

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  • Sterilization Policy: As with any medical procedure, your technician needs to provide a sterile environment.

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  • Pour into a sterile container and let cool completely before placing on your lips.

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  • Obviously everything should be clean and sterile, but also double check that they take all precautions to ensure no spray chemicals enters your nose, eyes or mouth.

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  • If it's possible, have the portrait taken at your home or favorite park instead of a sterile photo studio.

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  • The whiteness of the tile and the linens spoke to its cleanliness - a sparkling white bathroom was sterile in the best sense.

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  • They can be hung within a tub enclosure or they can transform a sterile shower stall into an inviting retreat as this touch of elegance adds appeal to your room.

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  • This does not mean that Christian singles cruises are sterile and boring.

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  • I'm kind of worried that she's infertile or sterile.

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  • Canine acupuncture is traditionally done with very fine sterile needles.

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  • For just this reason, I always have a box of latex-free, non sterile gloves around the house.

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  • Sterile needles are removed from individual packaging in front of the client.

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  • In the wild form the outer flowers only of the cyme are sterile, and these are about three-quarters of an inch across; the centre is filled with small perfect flowers.

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  • Keteleeri. This has the centre of the truss (which is much flatter than in V. macrocephalum) filled with fertile flowers, the outer ones only being sterile.

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  • The truss has its outer flowers sterile, and they are 1 inch or more in diameter; both they and the smaller ones that fill the centre are white.

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  • Moisten a sterile seed starting mix and plant 1 to 2 seeds per cell, 1/4 inch deep.

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  • Always use sterile soil, and carefully check any new plant for signs of trouble.

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  • 'Simplex' produces small red fruit that is very attractive to squirrels, but 'Multiplex' is sterile.

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  • Dip the cut end in a commercially prepared rooting hormone and place in water, sterile medium, or even directly into the soil to encourage root growth.

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  • Purchase sterile potting soil or a seed starting mix at the garden center.

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  • A medical alert ID bracelet can save your child's life, but it doesn't have to look like the sterile one you see many adults wearing.

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  • After being exposed to the light, the bacteria is rendered sterile.

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  • You won't be able to just hop into the chair at your eye doctor's office and expect to have it done, however; it is still a surgery and must be done in a sterile operating room.

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  • Water is not a suitable replacement for a sterile solution, as organisms and bacteria in the water can stick to them and cause severe damage to your eyes.

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  • Strep bacteria can be obtained by swabbing the back of the throat, the vagina, the rectum, or the infected area with a piece of sterile cotton.

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  • No special preparation, other than sterile technique by medical personnel, is required.

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  • After the procedure, the site of the puncture is covered with a sterile bandage.

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  • Some 98 percent of men with CF are sterile, due to complete obstruction or absence of the vas deferens (the tube carrying sperm out of the testes).

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  • Although most men with CF are functionally sterile, new procedures for removing sperm from the testes are being tried and may offer more men the chance to become fathers.

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  • Acupuncture-Based on the same traditional Chinese medical foundation as acupressure, acupuncture uses sterile needles inserted at specific points to treat certain conditions or relieve pain.

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  • Intravenous rehydration is the process by which sterile water solutions containing small amounts of salt or sugar are injected into the body through a tube attached to a needle which is inserted into a vein.

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  • Basic IV solutions are made of sterile water with small amounts of sodium (an ingredient in table salt) or dextrose (sugar) supplied in bottles or thick plastic bags that can hang on a stand mounted next to the patient's bed.

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  • The specimen for throat culture is obtained by wiping the child's throat with a sterile cotton swab.

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  • With the tongue depressed and the child saying "ah," the care provider wipes the back of the throat and the tonsils with the sterile swab, applying it to any area that appears either very red or is discharging pus.

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  • It is then placed in a sterile tube for immediate delivery to a laboratory.

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  • The next step is to apply antibiotic ointment and a sterile bandage to the wound.

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  • Acupuncture-Based on the same traditional Chinese medical foundation as acupressure, acupuncture uses sterile needles inserted at specific points to treat certain conditions or relieve pain.

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  • Second, the kidney is usually sterile, meaning that no bacteria are normally present within it.

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  • Sterile conditions during surgery also help prevent infection.

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  • A glucagon injection kit contains a syringe of sterile water and a vial of powdered glucagon.

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  • The simplest kit to use is the Ana-kit, which contains a sterile syringe preloaded with two doses of epinephrine with a stop between.

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  • Soak the wart in water, put cross-hatches over it with a sterile needle, and apply drops of thuja (Thuja occidentalis) tincture onto the wart.

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  • Procedures should be performed in a sterile environment by an experienced professional.

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  • The person performing the procedure should remove a new needle from the plastic in front of the person to be tattooed and should put on a new pair of sterile gloves.

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  • A piercing should be completed in a sterile environment that uses every precaution to reduce the risk of infection.

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  • The healthy human lung is sterile, with no normally resident bacteria or viruses, unlike the upper respiratory system and parts of the gastrointestinal system, where bacteria dwell even in a healthy state.

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  • Home canners must be diligent about using sterile equipment and following U.S. Department of Agriculture canning guidelines.

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  • To perform a rapid strep test or a throat culture, a nurse will use a sterile swab to reach down into the throat and obtain a sample of material from the sore area.

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  • While many men with Klinefelter syndrome live normal lives, nearly 100 percent of these men will be sterile (unable to produce a child).

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  • Acupuncture-Based on the same traditional Chinese medical foundation as acupressure, acupuncture uses sterile needles inserted at specific points to treat certain conditions or relieve pain.

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  • Hands should be washed and only clean, preferably sterile, materials should make contact with the eyes.

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  • If the foreign object cannot be removed at home, the eye should be lightly covered with sterile gauze to discourage rubbing.

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  • An antibiotic sterile ointment and a patch may be prescribed.

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  • Sterile objects that are causing no symptoms may be left in place.

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  • People who like to can food at home must be diligent about using sterile equipment and following U.S. Department of Agriculture canning guidelines.

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  • Acupuncture-Based on the same traditional Chinese medical foundation as acupressure, acupuncture uses sterile needles inserted at specific points to treat certain conditions or relieve pain.

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  • The injured site should be cleansed with a sterile solution and wrapped in a clean towel or other thick material that will protect the wound from further injury.

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  • If the skin is broken or apt to be disturbed, the burned area should be coated lightly with an antibacterial ointment and covered with a sterile bandage.

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  • Once the burned area is cleaned and treated with antibiotic cream or ointment, it is covered in sterile bandages, which are changed two to three times a day.

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  • The burn should then be loosely covered with a sterile gauze pad and the person taken to the hospital for further treatment.

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  • Electrical burns should be loosely covered with sterile gauze pads and the person taken to the hospital for further treatment.

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  • Cleaning and compression: Bleeding marks are cleaned with soap and water or hydrogen peroxide, and compressed with a sterile bandage for five to 10 minutes.

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  • Acupuncture-Based on the same traditional Chinese medical foundation as acupressure, acupuncture uses sterile needles inserted at specific points to treat certain conditions or relieve pain.

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  • Cover the wound with a sterile dressing or bandage.

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