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microscopic

microscopic

microscopic Sentence Examples

  • In microscopic structure they all present the closest agreement with one another.

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  • A microscopic voice inside warned her to stop, but desire put uncontrolled passion into her response.

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  • Microscopic examination fully confirms the existence of these compounds.

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  • - Microscopic Structure of Tobacco Leaf.

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  • Journ., 1828), he devoted himself chiefly to the examination of fluid-filled cavities in crystals, and of the microscopic structure of various kinds of fossil wood.

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  • - Microscopic Structure of Tobacco Leaf.

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  • In microscopic section the best slates show much colourless mica in small, thin, irregular scales.

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  • The food of the Anodonta, as of other Lamellibranchs, consists of microscopic animal and vegetable organisms, brought to the mouth by the stream which sets into the sub-pallial chamber at the lower siphonal notch (e in fig.

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  • Mite-galls, or acarocecidia, are abnormal growths of the leaves of plants, produced by microscopic Acaridea of the genus Phytoptus (gall-mites), and consist of little tufts of hairs, or of thickened portions of the leaves, usually most hypertrophied on the upper surface, so that the lower is drawn up into the interior, producing a bursiform cavity.

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  • It is opaque, except in exceedingly thin slices, such as made for microscopic investigation, which are imperfectly transparent, and of a dark brown colour by transmitted light.

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  • No adequate investigation of this subject has yet been made, but some observations made by the author of this article, on the piebald black and white rat, show that differences connected with the microscopic structure exist.

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  • Fraunhofer should, however, have fixed the microscopic limit at IX, as appears from (5), when we suppose 0 = 27r, 4)=1.7r.

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  • Fraunhofer should, however, have fixed the microscopic limit at IX, as appears from (5), when we suppose 0 = 27r, 4)=1.7r.

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  • C. Zelinka has given us the most detailed anatomical accounts we possess for several Bdelloidaceae, and was the first to utilize modern methods of microscopic technique on a complete scale.

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  • C. Zelinka has given us the most detailed anatomical accounts we possess for several Bdelloidaceae, and was the first to utilize modern methods of microscopic technique on a complete scale.

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  • The only motion in the air was that of the dripping, microscopic particles of drizzling mist.

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  • This is a microscopic point of agreement, but is none the less significant.

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  • No serious observer, acquainted with modern microscopic technical methods, has been able to confirm the explanation of their observations.

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  • No serious observer, acquainted with modern microscopic technical methods, has been able to confirm the explanation of their observations.

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  • He has moreover elaborated a method for preserving Rotif era for microscopic observation, so that the types of each observer are now as readily available for comparison as the plant-specimens of the botanist's herbarium.

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  • The slits may be cut out of tin-plate, and half covered by mica or " microscopic glass," held in position by a little cement.

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  • The richness, profusion and microscopic accuracy of their decoration could scarcely have been surpassed; but, with very rare exceptions, their lack of delicacy of technique disqualifies them to rank as fine porcelains.

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  • The investigation of the microscopic pelagic life of the sea has also developed to a great extent.

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  • Helmholtz in 1871 is the ` foundation of the important doctrine of the microscopic limit.

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  • The extreme value possible for a is a right angle, so that for the microscopic limit we have Z X o/µ (2).

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  • The asterism seems due to the presence of microscopic tubular cavities, or to enclosure of crystalline minerals, arranged in a definite system.

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  • The extreme value possible for a is a right angle, so that for the microscopic limit we have Z X o/µ (2).

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  • - Diagram of a transverse section through the body-wall of a young Ligula, illustrating the microscopic structure of tapeworms. a.

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  • The minute microscopic structure of the gastric glands in the two animals is practically identical.

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  • Aurous cyanide, AuCN, forms yellow, microscopic, hexagonal tables, insoluble in water, and is obtained by the addition of hydrochloric acid to a solution of potassium aurocyanide, KAu(CN)2.

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  • One of the few uses of crown-glass of this kind is the glass slides upon which microscopic specimens are mounted, as well as the thin glass slips with which such preparations are covered.

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  • Hansen showed that the microscopic appearance of film cells of the same species of Saccharomycetes varies according to the temperature of growth; the limiting temperatures of film formation, as well as the time of its appearance for the different species, also vary.

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  • The polypide consists of a "lophophore" bearing a series of ciliated tentacles by which Diatoms and other microscopic bodies are collected as food, of a U-shaped alimentary canal, and of a central nervous system.

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  • - Microscopic appearance FIG.

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  • The polypide consists of a "lophophore" bearing a series of ciliated tentacles by which Diatoms and other microscopic bodies are collected as food, of a U-shaped alimentary canal, and of a central nervous system.

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  • Thus he suggests that man has not eyes of a microscopic delicacy, because he would receive no great advantage from such acute organs, since though adding indefinitely to his speculative knowledge of the physical world they would 1 Yet he leaves open the question whether the Deity has annexed thought to matter as a faculty, or whether it rests on a distinct spiritual principle.

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  • of heterogenesis have limited themselves to cases of microscopic animals and plants, and in most cases, the observations that they have brought forward have been explained by minuter observation as cases of parasitism.

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  • of heterogenesis have limited themselves to cases of microscopic animals and plants, and in most cases, the observations that they have brought forward have been explained by minuter observation as cases of parasitism.

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  • - Microscopic appearance of Silk of Chinese Tussur.

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  • A dull stony-looking rock results, the vitreous lustre having entirely disappeared, and in microscopic section this exhibits a cryptocrystalline structure, being made up of exceedingly minute grains principally of quartz and felspar.

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  • v.-vii., 1878-1882), a fascinating and microscopic picture of colonial life; T.

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  • Pasteur showed that the origin of the disease proceeded from microscopic organisms called ferments and vitrios.

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  • Pasteur showed that the origin of the disease proceeded from microscopic organisms called ferments and vitrios.

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  • Glessite, a nearly opaque brown resin, with numerous microscopic cavities and dusty enclosures, named from glesum, an old name for amber.

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  • by Lee; Butschli, Investigation on Microscopic Forms and on Protoplasm, trans.

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  • Deeper than this, microscopic life is scanty; there is practically no reproduction and growth.

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  • Namako is obtained by punching the whole surfaceexcept the portion carrying the decorative designinto a texture of microscopic dots.

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  • His chief work was in microscopic petrology, to the study of which he was attracted by the investigations of Dr H.

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  • Stomata occur on both surfaces of the leaves, and, with the peculiar hair structure render the microscopic appearance of the plant highly characteristic.

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  • Microscopic accuracy has to be attained in cutting out the space for the insertion of the design, and while the latter must be soldered firmly in its place, not the slightest trace of solder or the least sign of junction must be discernible between the metal of the inserted picture and that of the field in which it is inserted.

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  • Owing to their want of adhesiveness, they are, however, usually mounted on glass as microscopic slides, either in glycerin jelly, Canada balsam or some other suitable medium.

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  • Certain varieties, notably some from Russia, possess a beautiful metallic sheen, referable to the presence of either microscopic fissures or enclosures.

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  • The entosternites are cartilaginous in texture, but they have neither the chemical character nor the microscopic structure of the hyaline cartilage of Vertebrates.

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  • His true greatness can only be estimated by a consideration of the fact that he was a great teacher not only of human and comparative anatomy and zoology but also of physiology, and that nearly all the most distinguished German zoologists and physiologists of the period 1850 to 1870 were his pupils and acknowledged his leadership. The most striking feature about Johann Miller's work, apart from the comprehensiveness of his point of view, in which he added to the anatomical and morphological ideas of Cuvier a consideration of physiology, embryology and microscopic structure, was the extraordinary accuracy, facility and completeness of his recorded observations.

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  • The plumage of gorgeously-hued birds, the blossoms of flowers (especially the hydrangea), the folds of thick brocade, microscopic diapers and arabesques, are built up with tiny fragments of iridescent shell, in combination with silver-foil, goldlacquer and colored bone, the whole producing a rich and sparkling effect.

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  • This is the case with the copper-tin alloys containing less than 9% by weight of tin; a microscopic examination reveals only one material, a copper-like substance, the tin having disappeared, being in solution in the copper.

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  • 7n7 microscopic structure of the FIG.

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  • In the immense region which Gibbon surveyed there is hardly a section which has not been submitted to the microscopic examination of specialists.

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  • demonstrated by a series of accurate investigations, contributed by many workers, that malaria is caused by a microscopic parasite in the blood, into which it is introduced by the bites of certain species of mosquito.

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  • Microscopic examination of a specimen of mature cotton shows that the hairs are flattened and twisted, resembling somewhat in general appearance an empty and twisted fire hose.

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  • Scale-mosses are mounted in the same way, or may be floated out in water like sea-weeds, and dried in white blotting paper under strong pressure before gumming on paper, but are best mounted as microscopic slides, care being taken to show the stipules.

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  • - Limulus agrees with Scorpio not only in having a pair of central eyes and also lateral eyes, but in the microscopic structure of those organs, which differs in the central and lateral eyes respectively.

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  • In the eyes of a Chinese connoisseur, no blue-and-white porcelain worthy of consideration exists, or ever has existed, except the kai-pien-yao, with its imponderable pdle, its wax-like surface, and its rich, glowing blue, entirely free from superficiality or garishness and broken into a thousand tints by the microscopic crackle of the glaze.

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  • Experiments on alloys are, in some ways, easier to make than on pairs of non-metallic substances, partly owing to the possibility of polishing sections for microscopic examination, and the investigation of alloys has done much to elucidate the general phenomena of solution, of which metallic solution constitutes a special case.

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  • Microscopic fungi are usually preserved in envelopes, or simply attached to sheets of paper or mounted as microscopic slides.

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  • The efforts of the best minds in zoology had been directed for thirty years or more to ascertaining with increased accuracy and minuteness the structure, microscopic and gross, of all possible forms of animals, and not only of the adult structure but of the steps of development of that structure in the growth of each kind of organism from the egg to maturity.

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  • (b) Morbid histology or microscopic.

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  • Just as a granite is a conglomerate or mechanical mixture of distinct crystalline grains of three perfectly definite minerals, mica, quartz, and felspar, so iron and steel in their usual slowly cooled state consist of a mixture of microscopic particles of such definite quasiminerals, diametrically unlike.

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  • - Physical properties and assumed microscopic constitution of the pearlite series, graphiteless steel slowly cooled and white cast iron.

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  • The heat evolved by this process of solidification retards the fall of temperature; but after this the rate of cooling remains regular until T (750°) on the line Sa (Ar 3) is reached, when a second retardation occurs, due to the heat liberated by the passage within the pasty mass of part of the iron and carbon from a state of mere solution to that of definite combination in the ratio Fe 3 C, forming microscopic particles of cementite, while the remainder of the iron and carbon continue dissolved in each other as austenite.

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  • 28.-Physical Properties and assumed Microscopic Constitution hand, the extreme hardness of nearly graphiteless cast iron is of Cast Iron containing 4% of carbon, as affected by the distribution of great value for objects of which the chief duty is to resist of that carbon between the combined and graphitic states.

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  • African mines the diamonds are not only crystals of various weights from fractions of a carat to 150 carats, but also occur as microscopic crystals disseminated through the blue ground.

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  • All along one side is a microscopic ciliated groove, into which the mud does not seem to enter, and along which a continuous stream of water may be kept up. Possibly this is respiratory - there are no special respiratory organs.

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  • Many of the Egyptian rocks in the desert areas and at the cataracts are coated with a highly polished film, of almost microscopic thinness, consisting chiefly of oxides of iron and manganese with salts of magnesia and lime.

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  • Print of microscopic size may be read; a watch ticking in another room can be heard.

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  • occurrence of a food-reserve; many so-called exalbuminous seeds show to microscopic examination a distinct endosperm which may have other than a nutritive function.

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  • The experiment of Engelmann referred to deserves to be mentioned here, if only in illustration .of the use to which algae have been put in the study of physiological problems. Engelmann observed that certain bacteria were motile only in the presence of oxygen, and that they retained their motility in a microscopic preparation in the neighbourhood of an algal filament when they had come to rest elsewhere on account of the exhaustion of oxygen.

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  • "Dry rot," which usually attacks the sap-wood, generally starts in a warm damp unventilated place, and is caused by the growth of fungi, some of which are visible to the naked eye, some microscopic. The spores from the fungi on the decayed wood float in the air and alight on any adjacent timber, infecting this also if the conditions be favourable.

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  • During three years he was experimental assistant to Alfred Donne (1801-1878) in his course of lectures on microscopic anatomy.

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  • It forms microscopic hexagonal plates having a silver-white streak.

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  • The former method yields greyish, metallic-looking, microscopic crystals, the latter a grey amorphous powder.

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  • It crystallizes in microscopic rhombohedra insoluble in cold acids.

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  • Its food consists of microscopic organisms and organic particles; these are drawn into the mouth FIG.

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  • It is a pax with a very rich and delicate niello picture of the coronation of the Virgin; the composition is very full, and the work almost microscopic in minuteness; it was made in 1452.

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  • Abandoning the long and somewhat heavy magnetic needles that had been used up to that date in galvanometers, he attached to the back of a very small mirror made of microscopic glass a fragment of magnetized watch-spring, and suspended the mirror and needle by means of a cocoon fibre in the centre of a coil of insulated wire.

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  • The fibre is decidedly inferior to flax and hemp in strength and tenacity; and, owing to a peculiarity in its microscopic structure, by which the walls of the separate cells composing the fibre vary much in thickness at different points, the single strands of fibre are of unequal strength.

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  • In an oyster containing white spat microscopic examination of the genital organs shows nothing but a few unexpel]ed ova.

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  • Ehrenberg adds a list of 8 Polygastric Infusoria, 1 fossil infusorian, 5 Phytolitharia and several microscopic fungi.

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  • All the known forms of plant-life are either fungi or allied to them, and many are only microscopic. The most interesting inhabitants of Mammoth Cave are the blind, wingless grasshoppers, with extremely long antennae; blind, colourless crayfish (Cambarus pellucidus, Telk.); and the blind fish, Amblyopsis spelaeus, colourless and viviparous, from 1 in.

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  • Although much progress has been made in determining the value and constancy of morphological characters, we are still in need of a sufficiently comprehensive and easily applied scheme of classification, partly owing to the existence in the literature of imperfectly described forms, the life-history of which is not yet known, or the microscopic characters of which have not been examined with sufficient accuracy and thoroughness.

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  • Ciliary movements, which undoubtedly contribute in bringing the surface into contact with larger supplies of oxygen and other fluids in unity of time, are not so rapid or so extensive when compared with other standards than the apparent dimensions of the microscopic field.

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  • By means of microscopic examination more than one organism may sometimes be observed in the tissues,but one single organism by its constant presence and special relations to the tissue changes can usually be selected as the probable cause of the disease, and attempts towards its cultivation can then be made.

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  • Such microscopic examination requires the use of the finest lenses and the application of various staining methods.

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  • This disturbance results in disintegration to a varying degree, and may produce changes visible on microscopic examination.

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  • Very thin laminae of haematite, blood-red by transmitted light, occur as microscopic enclosures in certain minerals, such as carnallite and sun-stone, to which they impart colour and lustre.

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  • The Copepoda live upon the diatoms and other important microscopic vegetable life at the surface of the sea, and in their turn serve as food for fishes and other larger forms and thus, indirectly, for man himself.

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  • being due to the presence of microscopic scales.

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  • Such a model, properly constructed, that is to say, with the vesicles of the foam microscopic in size, is a marvellous imitation of the appearance of protoplasm, being distinguishable from it only by a greater symmetry.

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  • Biitschli, Investigations on Microscopic Foams and Protoplasm (Eng.

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  • When heated in a vacuum to 530 it sublimes, and on condensation forms microscopic needles.

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  • define dysplasia & its microscopic features. define metaplasia with a few examples.

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  • The theory describes the elementary particles as microscopic stringlike objects with a size of around 10-35m.

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  • Subjects include microscopic endodontics, cleaning and shaping, obturation techniques, surgical endodontics, practice management, news and links.

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  • fingerprinting techniques exploit microscopic deviations in device hardware: clock skews.

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  • fossiliferous limestone made up entirely of microscopic shells.

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  • Molds are composed of numerous, microscopic, branching hyphae known collectively as a mycelium.

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  • inactivated serum did not produce any clinical signs, nor gross or microscopic lesions.

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  • Laboratory tests have developed the use of microscopic algae to remove heavy metals from water and soil leachate.

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  • Liposome drugs are standard chemotherapy drugs used to treat KS that are put inside microscopic bubbles of fat called liposome drugs are standard chemotherapy drugs used to treat KS that are put inside microscopic bubbles of fat called liposomes.

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  • A Viet Nam village looks microscopic from 30,000 feet.

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  • microscopic algae will clump together into particles large enough to be removed by filtration.

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  • microscopic polyangiitis.

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  • microscopic haematuria sought.

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  • microscopic marine organisms.

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  • microscopic droplets that come from a person with tuberculosis.

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  • microscopic plankton living deep beneath the sea.

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  • His work shows an almost microscopic evaluation of surface.

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  • However, the vast majority of environmental data is very small - even microscopic.

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  • The true leaves are only microscopic scales of a brown, papery texture.

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  • Quadrant III Quadrant III gives a macroscopic, not microscopic view, in other words a ' bird's-eye-view ' .

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  • Spores are usually microscopic, and are produced in a variety of ways.

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  • initially microscopic organisms feed on the more succulent ingredients in the pile.

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  • microscopic in size, with food particles adhering to the sticky surface.

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  • Tapeworm eggs are passed out in the dung and eaten by a microscopic mite which lives on the pasture.

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  • Martin Turner takes you on a journey from the motion of a microscopic particle to the creation of imaginary moonscapes.

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  • needle biopsy will be taken for microscopic examination.

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  • These images complement light microscopic images by revealing structural detail not observable by light microscopy.

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  • Initially microscopic organisms feed on the more succulent ingredients in the pile.

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  • Microscopic examination of the mimic and model cuticle may also reveal some interesting parallels.

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  • These microscopic particles now have an electric charge which enables them to stick to surfaces more easily.

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  • Note that many of the fine lines in the low magnification photomicrographs are actually trails of microscopic bubbles!

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  • Using the latest photographic technology, these images capture in close up microscopic plankton living deep beneath the sea.

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  • We try to understand the relation between the microscopic rheological behavior and the bulk rheology.

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  • The image right shows a rotifer, a microscopic organism that can be found in a bird-bath or roof gutter.

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  • Written by DM Benson, Plant Pathologist, this fact sheet provides information on the pest nematodes, which are microscopic roundworms.

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  • Heat inactivated serum did not produce any clinical signs, nor gross or microscopic lesions.

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  • A simple sponge is a bag of cells surrounding a cavity, supported by microscopic spicules.

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  • The rocks are typically ' cleaner ' quartz sands and rather unfossiliferous apart from beds of microscopic sponge spicules.

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  • The microscopic findings of the resected mass showed a stromal cell component by immunohistochemical stain.

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  • trophoblast inclusions by performing microscopic examinations of placental tissues.

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  • Thousands of microscopic robots armed with tiny tweezers could pluck the Moon bare in a matter of weeks.

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  • unicellular, microscopic plant that causes the fermentation of sugars to alcohol and carbon dioxide.

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  • Gonococcal urethritis is diagnosed in 98 per cent of men by microscopic examination of the discharge obtained from a urethral swab.

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  • Numbers of microscopic fields assessed per section and of sections per animal has been selected to minimize variance between animals.

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  • The mudflats are crammed with tasty microscopic worms and marine worms, lots of lovely food to over 20,000 birds.

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  • (iii.) The collar is produced dorsally into arms (one pair in Rhabdopleura, four to eight pairs in Cephalodiscus), each of which bears numerous ciliated tentacles, the organs by which the microscopic food-particles are conveyed to the mouth.

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  • Hansen showed that the microscopic appearance of film cells of the same species of Saccharomycetes varies according to the temperature of growth; the limiting temperatures of film formation, as well as the time of its appearance for the different species, also vary.

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  • Thus he suggests that man has not eyes of a microscopic delicacy, because he would receive no great advantage from such acute organs, since though adding indefinitely to his speculative knowledge of the physical world they would 1 Yet he leaves open the question whether the Deity has annexed thought to matter as a faculty, or whether it rests on a distinct spiritual principle.

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  • Glessite, a nearly opaque brown resin, with numerous microscopic cavities and dusty enclosures, named from glesum, an old name for amber.

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  • by Lee; Butschli, Investigation on Microscopic Forms and on Protoplasm, trans.

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  • In the immense region which Gibbon surveyed there is hardly a section which has not been submitted to the microscopic examination of specialists.

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  • demonstrated by a series of accurate investigations, contributed by many workers, that malaria is caused by a microscopic parasite in the blood, into which it is introduced by the bites of certain species of mosquito.

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  • A wing is an outgrowth from the dorsal and pleural regions of the thoracic segment that bears it, and microscopic examination shows it to consist of a double layer of cuticularized skin, the two layers being in contact except where they are thickened and folded to form the firm tubular nervures, which serve as a supporting framework for the wing membrane, enclose air-tubes, and convey blood.

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  • Microscopic examination of a specimen of mature cotton shows that the hairs are flattened and twisted, resembling somewhat in general appearance an empty and twisted fire hose.

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  • Owing to their want of adhesiveness, they are, however, usually mounted on glass as microscopic slides, either in glycerin jelly, Canada balsam or some other suitable medium.

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  • Microscopic fungi are usually preserved in envelopes, or simply attached to sheets of paper or mounted as microscopic slides.

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  • Scale-mosses are mounted in the same way, or may be floated out in water like sea-weeds, and dried in white blotting paper under strong pressure before gumming on paper, but are best mounted as microscopic slides, care being taken to show the stipules.

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  • The investigation of the microscopic pelagic life of the sea has also developed to a great extent.

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  • Several decades ago all marine organisms became grouped together in three great categories: (1) the Benthos, or bottom-living, rooted or sedentary forms; (2) the Nekton, or actively swimming animals; and (3) the Plankton, or drifting (usually) microscopic organisms, which have little power of locomotion (see 21.720).

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  • Deeper than this, microscopic life is scanty; there is practically no reproduction and growth.

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  • A dull stony-looking rock results, the vitreous lustre having entirely disappeared, and in microscopic section this exhibits a cryptocrystalline structure, being made up of exceedingly minute grains principally of quartz and felspar.

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  • Certain varieties, notably some from Russia, possess a beautiful metallic sheen, referable to the presence of either microscopic fissures or enclosures.

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  • 7n7 microscopic structure of the FIG.

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  • - Limulus agrees with Scorpio not only in having a pair of central eyes and also lateral eyes, but in the microscopic structure of those organs, which differs in the central and lateral eyes respectively.

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  • The entosternites are cartilaginous in texture, but they have neither the chemical character nor the microscopic structure of the hyaline cartilage of Vertebrates.

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  • In microscopic structure they all present the closest agreement with one another.

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  • The minute microscopic structure of the gastric glands in the two animals is practically identical.

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  • This is a microscopic point of agreement, but is none the less significant.

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  • The perfecting of the microscope led to a full comprehension of the great doctrine of cell-structure and the establishment of the facts - (r) that all organisms are either, single corpuscles (so-called cells) of living material (microscopic animalcules, &c.) or are built up of an immense number of such units; (2) that all organisms begin their individual existence as a single unit or corpuscle of living substance, which multiplies by binary fission, the products growing in size and multiplying similarly by binary fission; and (3) that the life of a multicellular organism is the sum of the activities of the corpuscular units of which it consists, and that the processes of life must be studied in and their explanation obtained from an understanding of the chemical and physical changes which go on in each.

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  • His true greatness can only be estimated by a consideration of the fact that he was a great teacher not only of human and comparative anatomy and zoology but also of physiology, and that nearly all the most distinguished German zoologists and physiologists of the period 1850 to 1870 were his pupils and acknowledged his leadership. The most striking feature about Johann Miller's work, apart from the comprehensiveness of his point of view, in which he added to the anatomical and morphological ideas of Cuvier a consideration of physiology, embryology and microscopic structure, was the extraordinary accuracy, facility and completeness of his recorded observations.

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  • The efforts of the best minds in zoology had been directed for thirty years or more to ascertaining with increased accuracy and minuteness the structure, microscopic and gross, of all possible forms of animals, and not only of the adult structure but of the steps of development of that structure in the growth of each kind of organism from the egg to maturity.

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  • Helmholtz in 1871 is the ` foundation of the important doctrine of the microscopic limit.

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  • From the absence of spectra Fraunhofer argued that there must be a microscopic limit represented by X; and the inference is plausible, to say the least (Phil.

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  • The slits may be cut out of tin-plate, and half covered by mica or " microscopic glass," held in position by a little cement.

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  • (b) Morbid histology or microscopic.

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  • One of the few uses of crown-glass of this kind is the glass slides upon which microscopic specimens are mounted, as well as the thin glass slips with which such preparations are covered.

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  • - Diagram of a transverse section through the body-wall of a young Ligula, illustrating the microscopic structure of tapeworms. a.

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  • Stomata occur on both surfaces of the leaves, and, with the peculiar hair structure render the microscopic appearance of the plant highly characteristic.

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  • Namako is obtained by punching the whole surfaceexcept the portion carrying the decorative designinto a texture of microscopic dots.

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  • Microscopic accuracy has to be attained in cutting out the space for the insertion of the design, and while the latter must be soldered firmly in its place, not the slightest trace of solder or the least sign of junction must be discernible between the metal of the inserted picture and that of the field in which it is inserted.

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  • The richness, profusion and microscopic accuracy of their decoration could scarcely have been surpassed; but, with very rare exceptions, their lack of delicacy of technique disqualifies them to rank as fine porcelains.

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  • In the eyes of a Chinese connoisseur, no blue-and-white porcelain worthy of consideration exists, or ever has existed, except the kai-pien-yao, with its imponderable pdle, its wax-like surface, and its rich, glowing blue, entirely free from superficiality or garishness and broken into a thousand tints by the microscopic crackle of the glaze.

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  • It must be acknowledged, however, that the Tokyo artists often devote their skill to purposes of forgery, and that their imitations, especially of old Satsuma-yaki, are sometimes franked by dealers whose standing should forbid such frauds: In this context it may be mentioned that, of late years,decoration of a remarkably microscopic character has been successfully practised in KiOto, Osaka and Kobe, its originator being Meisan of Osaka.

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  • The plumage of gorgeously-hued birds, the blossoms of flowers (especially the hydrangea), the folds of thick brocade, microscopic diapers and arabesques, are built up with tiny fragments of iridescent shell, in combination with silver-foil, goldlacquer and colored bone, the whole producing a rich and sparkling effect.

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  • Microscopic examination fully confirms the existence of these compounds.

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  • This is the case with the copper-tin alloys containing less than 9% by weight of tin; a microscopic examination reveals only one material, a copper-like substance, the tin having disappeared, being in solution in the copper.

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  • Aurous cyanide, AuCN, forms yellow, microscopic, hexagonal tables, insoluble in water, and is obtained by the addition of hydrochloric acid to a solution of potassium aurocyanide, KAu(CN)2.

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  • It is opaque, except in exceedingly thin slices, such as made for microscopic investigation, which are imperfectly transparent, and of a dark brown colour by transmitted light.

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  • v.-vii., 1878-1882), a fascinating and microscopic picture of colonial life; T.

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  • Journ., 1828), he devoted himself chiefly to the examination of fluid-filled cavities in crystals, and of the microscopic structure of various kinds of fossil wood.

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  • His chief work was in microscopic petrology, to the study of which he was attracted by the investigations of Dr H.

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  • Mite-galls, or acarocecidia, are abnormal growths of the leaves of plants, produced by microscopic Acaridea of the genus Phytoptus (gall-mites), and consist of little tufts of hairs, or of thickened portions of the leaves, usually most hypertrophied on the upper surface, so that the lower is drawn up into the interior, producing a bursiform cavity.

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  • In microscopic section the best slates show much colourless mica in small, thin, irregular scales.

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  • He has moreover elaborated a method for preserving Rotif era for microscopic observation, so that the types of each observer are now as readily available for comparison as the plant-specimens of the botanist's herbarium.

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  • The food of the Anodonta, as of other Lamellibranchs, consists of microscopic animal and vegetable organisms, brought to the mouth by the stream which sets into the sub-pallial chamber at the lower siphonal notch (e in fig.

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  • The asterism seems due to the presence of microscopic tubular cavities, or to enclosure of crystalline minerals, arranged in a definite system.

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  • The forms comprised in the various groups, whilst exhibiting an extreme range of variety in shape, as may be seen on comparing an oyster, a cuttle-fish, and a sea-slug such as Doris; whilst adapted, some to life on dry land, others to the depths of the sea, others to rushing streams; whilst capable, some of swimming, others of burrowing, crawling or jumping, some, on the other hand, fixed and immobile; some amongst the most formidable of carnivores, others feeding on vegetable mud, or on the minutest of microscopic organisms - yet all agree in possessing in common a very considerable number of structural details which are not possessed in common by any other animals.

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  • - Microscopic appearance FIG.

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  • - Microscopic appearance of Silk of Chinese Tussur.

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  • Experiments on alloys are, in some ways, easier to make than on pairs of non-metallic substances, partly owing to the possibility of polishing sections for microscopic examination, and the investigation of alloys has done much to elucidate the general phenomena of solution, of which metallic solution constitutes a special case.

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  • No adequate investigation of this subject has yet been made, but some observations made by the author of this article, on the piebald black and white rat, show that differences connected with the microscopic structure exist.

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  • Just as a granite is a conglomerate or mechanical mixture of distinct crystalline grains of three perfectly definite minerals, mica, quartz, and felspar, so iron and steel in their usual slowly cooled state consist of a mixture of microscopic particles of such definite quasiminerals, diametrically unlike.

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  • - Physical properties and assumed microscopic constitution of the pearlite series, graphiteless steel slowly cooled and white cast iron.

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  • The heat evolved by this process of solidification retards the fall of temperature; but after this the rate of cooling remains regular until T (750°) on the line Sa (Ar 3) is reached, when a second retardation occurs, due to the heat liberated by the passage within the pasty mass of part of the iron and carbon from a state of mere solution to that of definite combination in the ratio Fe 3 C, forming microscopic particles of cementite, while the remainder of the iron and carbon continue dissolved in each other as austenite.

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  • 28.-Physical Properties and assumed Microscopic Constitution hand, the extreme hardness of nearly graphiteless cast iron is of Cast Iron containing 4% of carbon, as affected by the distribution of great value for objects of which the chief duty is to resist of that carbon between the combined and graphitic states.

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  • African mines the diamonds are not only crystals of various weights from fractions of a carat to 150 carats, but also occur as microscopic crystals disseminated through the blue ground.

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  • All along one side is a microscopic ciliated groove, into which the mud does not seem to enter, and along which a continuous stream of water may be kept up. Possibly this is respiratory - there are no special respiratory organs.

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  • Many of the Egyptian rocks in the desert areas and at the cataracts are coated with a highly polished film, of almost microscopic thinness, consisting chiefly of oxides of iron and manganese with salts of magnesia and lime.

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  • Print of microscopic size may be read; a watch ticking in another room can be heard.

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  • occurrence of a food-reserve; many so-called exalbuminous seeds show to microscopic examination a distinct endosperm which may have other than a nutritive function.

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  • The experiment of Engelmann referred to deserves to be mentioned here, if only in illustration .of the use to which algae have been put in the study of physiological problems. Engelmann observed that certain bacteria were motile only in the presence of oxygen, and that they retained their motility in a microscopic preparation in the neighbourhood of an algal filament when they had come to rest elsewhere on account of the exhaustion of oxygen.

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  • "Dry rot," which usually attacks the sap-wood, generally starts in a warm damp unventilated place, and is caused by the growth of fungi, some of which are visible to the naked eye, some microscopic. The spores from the fungi on the decayed wood float in the air and alight on any adjacent timber, infecting this also if the conditions be favourable.

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  • During three years he was experimental assistant to Alfred Donne (1801-1878) in his course of lectures on microscopic anatomy.

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  • It forms microscopic hexagonal plates having a silver-white streak.

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  • The former method yields greyish, metallic-looking, microscopic crystals, the latter a grey amorphous powder.

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  • It crystallizes in microscopic rhombohedra insoluble in cold acids.

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  • Its food consists of microscopic organisms and organic particles; these are drawn into the mouth FIG.

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  • It is a pax with a very rich and delicate niello picture of the coronation of the Virgin; the composition is very full, and the work almost microscopic in minuteness; it was made in 1452.

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  • Abandoning the long and somewhat heavy magnetic needles that had been used up to that date in galvanometers, he attached to the back of a very small mirror made of microscopic glass a fragment of magnetized watch-spring, and suspended the mirror and needle by means of a cocoon fibre in the centre of a coil of insulated wire.

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  • The fibre is decidedly inferior to flax and hemp in strength and tenacity; and, owing to a peculiarity in its microscopic structure, by which the walls of the separate cells composing the fibre vary much in thickness at different points, the single strands of fibre are of unequal strength.

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  • In an oyster containing white spat microscopic examination of the genital organs shows nothing but a few unexpel]ed ova.

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  • Ehrenberg adds a list of 8 Polygastric Infusoria, 1 fossil infusorian, 5 Phytolitharia and several microscopic fungi.

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  • All the known forms of plant-life are either fungi or allied to them, and many are only microscopic. The most interesting inhabitants of Mammoth Cave are the blind, wingless grasshoppers, with extremely long antennae; blind, colourless crayfish (Cambarus pellucidus, Telk.); and the blind fish, Amblyopsis spelaeus, colourless and viviparous, from 1 in.

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  • Although much progress has been made in determining the value and constancy of morphological characters, we are still in need of a sufficiently comprehensive and easily applied scheme of classification, partly owing to the existence in the literature of imperfectly described forms, the life-history of which is not yet known, or the microscopic characters of which have not been examined with sufficient accuracy and thoroughness.

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  • Ciliary movements, which undoubtedly contribute in bringing the surface into contact with larger supplies of oxygen and other fluids in unity of time, are not so rapid or so extensive when compared with other standards than the apparent dimensions of the microscopic field.

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  • By means of microscopic examination more than one organism may sometimes be observed in the tissues,but one single organism by its constant presence and special relations to the tissue changes can usually be selected as the probable cause of the disease, and attempts towards its cultivation can then be made.

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  • Such microscopic examination requires the use of the finest lenses and the application of various staining methods.

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  • This disturbance results in disintegration to a varying degree, and may produce changes visible on microscopic examination.

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  • Very thin laminae of haematite, blood-red by transmitted light, occur as microscopic enclosures in certain minerals, such as carnallite and sun-stone, to which they impart colour and lustre.

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  • The Copepoda live upon the diatoms and other important microscopic vegetable life at the surface of the sea, and in their turn serve as food for fishes and other larger forms and thus, indirectly, for man himself.

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  • being due to the presence of microscopic scales.

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  • Such a model, properly constructed, that is to say, with the vesicles of the foam microscopic in size, is a marvellous imitation of the appearance of protoplasm, being distinguishable from it only by a greater symmetry.

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  • Biitschli, Investigations on Microscopic Foams and Protoplasm (Eng.

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  • When heated in a vacuum to 530 it sublimes, and on condensation forms microscopic needles.

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  • van Leeuwenhoek discovered bacteria, and it was soon found that however carefully organic matter might be protected by screens, or by being placed in stoppered receptacles, putrefaction set in, and was invariably accompanied by the appearance of myriads of bacteria and other low organisms. As knowledge of microscopic forms of life increased, so the apparent possibilities of abiogenesis increased, and it became a tempting hypothesis that whilst the higher forms of life arose only by generation from their kind, there was a perpetual abiogenetic fount by which the first steps in the evolution of living organisms continued to arise, under suitable conditions, from inorganic matter.

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  • Pasteur that the occurrence of abiogenesis in the microscopic world was disproved as much as its occurrence in the macroscopic world.

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  • The nature of sterilization, and the difficulties in securing it, as well as the extreme delicacy of the manipulations necessary, made it possible for a very long time to be doubtful as to the application of the phrase omne vivum e vivo to the microscopic world, and there still remain a few belated supporters of abiogenesis.

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  • Various attempts have been made to classify corals according to the arrangement of the septa, the characters of the theca, the microscopic structure of the corallurn, and the anatomy of the soft parts.

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  • As the microscopic character of the corallum of these extinct forms agrees with that of recent corals, it may be assumed that the anatomy of the soft parts also was similar, and the tetrameral arrange ment, when present, may obviously be referred to a stage when only the first two pairs of Edwardsian mesenteries were present and septa were formed in the intervals between them.

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  • Most frequently they occur lying on the bedding planes of black shales; less commonly they are met with in many other kinds of sediment, and when in limestone they may retain much of their original relief and admit of a detailed microscopic study.

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  • It has, however, been demonstrated that the senile whitening of human hair is due to the presence of phagocytes, which devour the pigment-bodies; and from microscopic observations recently made by the French naturalist Dr E.

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  • Ferrous carbonate, FeCO3, or spathic iron ore, may be obtained as microscopic rhombohedra by adding sodium bicarbonate to ferrous sulphate and heating to 150° for 36 hours.

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  • Her other works are the Connexion of the Physical Sciences (1834), Physical Geography (1848), and Molecular and Microscopic Science (1869).

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  • No doubt careful microscopic scrutiny of the minute anatomy of the leaves of plants grown under various conditions would reveal further adaptations of structure to external conditions of climate.

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  • Microscopic sections show that flint is very finely crystalline and consists of quartz or chalcedonic silica; colloidal or amorphous silica may also be present but cannot form any considerable part of the rock.

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  • In most microscopic observations the object is mounted on a plane glass plate or slide about o 06 in.

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  • If microscopic preparations are observed by diffused daylight or by the more or less white light of the usual artificial sources, then an objective of fixed numerical aperture will only represent details of a definite fineness.

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  • For the microscopic observation it is the same as if a thin section of a thickness of 2 to 4 had been shown.

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  • The sine-condition is, however, the most important as far as the microscopic representation is concerned, because it must be possible to represent a surfaceelement through the objective by wide cones of rays.

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  • Illuminating Systems Most microscopic observations are made with transmitted light; an illuminating arrangement is therefore necessary, and as the plane of the object is nearly always horizontal or only slightly inclined, the illuminating rays must be directed along the optical axis of the microscope.

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  • One way of receiving a stereoscopic impression through a microscope is by fixing an apparatus as directly as possible above the last lens of the microscopic objective, which divides the rays passing out and directs half into each eyepiece.

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  • The errors attending the determination of the size of a microscopic object depend chiefly on the accuracy of the objective micrometer; any errors in the micrometer being magnified by the objective.

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  • Microscopic sections of some of the more coherent clays and shales may be prepared by saturating them with Canada balsam by long boiling, and slicing the resultant mass in the same manner as one of the harder rocks.

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  • We try to understand the relation between the microscopic rheological behavior and the bulk rheology.

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  • The image right shows a rotifer, a microscopic organism that can be found in a bird-bath or roof gutter.

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  • Written by DM Benson, Plant Pathologist, this fact sheet provides information on the pest nematodes, which are microscopic roundworms.

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  • A simple sponge is a bag of cells surrounding a cavity, supported by microscopic spicules.

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  • The rocks are typically ' cleaner ' quartz sands and rather unfossiliferous apart from beds of microscopic sponge spicules.

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  • The microscopic findings of the resected mass showed a stromal cell component by immunohistochemical stain.

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  • Kliman and the team identified trophoblast inclusions by performing microscopic examinations of placental tissues.

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  • Thousands of microscopic robots armed with tiny tweezers could pluck the Moon bare in a matter of weeks.

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  • Yeast - a simple, unicellular, microscopic plant that causes the fermentation of sugars to alcohol and carbon dioxide.

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  • Gonococcal urethritis is diagnosed in 98 per cent of men by microscopic examination of the discharge obtained from a urethral swab.

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  • Numbers of microscopic fields assessed per section and of sections per animal has been selected to minimize variance between animals.

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  • The mudflats are crammed with tasty microscopic worms and marine worms, lots of lovely food to over 20,000 birds.

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  • Stirring your drink will not result in the coolness provided by the microscopic chips of ice floating in your drink after a good turn in the cocktail shaker.

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  • Throughout the human digestive tract, millions of microscopic organisms help digest food and transform food into useful nutrients.

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  • The Jane Iredale mineral collection is "micro-pulverized" using a technological process that forms flat, microscopic crystals.

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  • A probiotics definition includes tiny, microscopic organisms that many people believe benefit the human body and digestive system.

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  • Mites are microscopic; they can get under the skin where they crawl around and drive a dog crazy with the itching.

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  • The eggs quickly progress to the larval stage, where they continue their development by eating microscopic debris including dander, feces, and dead skin cells.

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  • These microscopic organisms break down soil matter into usable nutrients for plants.

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  • These are microscopic bugs that live off dead skin cells that are shed by people, a normal part of life and health.

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  • It's not about showing every inch of skin in a microscopic garment.

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  • However, it's almost microscopic size (just a few inches long, the size of an iPOD) and bright, crisp screen make it very attractive for gamers needing a truly portable device.

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  • Sputum cytology involves the microscopic examination of phlegm that is coughed up from the lungs.

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  • Biopsy-The surgical removal and microscopic examination of living tissue for diagnostic purposes or to follow the course of a disease.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • Urine and blood tests may be ordered to check for microscopic amounts of blood in the urine and to obtain a complete differential blood count.

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  • Biopsy-The surgical removal and microscopic examination of living tissue for diagnostic purposes or to follow the course of a disease.

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  • Microscopic examination of the smear can identify which type of bacteria has been collected.

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  • Complex and/or invasive procedures such as skin or muscle biopsy (taking a small sample of tissue for microscopic evaluation) are considered tertiary tests.

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  • Biopsy-The surgical removal and microscopic examination of living tissue for diagnostic purposes or to follow the course of a disease.

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  • A doctor who suspects skin cancer will remove all or part of the mole for microscopic examination.

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  • A skin biopsy involves removing a small sample of skin and examining its microscopic structure.

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  • Hemacytometer counting: The microscopic method uses a phase contrast microscope to view blood on a hemacytometer slide.

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  • Biopsy-The surgical removal and microscopic examination of living tissue for diagnostic purposes or to follow the course of a disease.

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  • Biopsy-The surgical removal and microscopic examination of living tissue for diagnostic purposes or to follow the course of a disease.

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  • Biopsy-The surgical removal and microscopic examination of living tissue for diagnostic purposes or to follow the course of a disease.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • If an infection is suspected or if an abrasion does not heal, then swabbing of the eye for microscopic culture may be done to definitively establish the organism involved.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • The removal and microscopic examination of tiny bits of tissue (biopsy) from any suspicious areas found on an x-ray exam can be performed by either traditional or newer surgical techniques.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • Electric current can be described as the flow of microscopic particles called electrons through wires and electrical appliances.

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  • Electric current can also be described as the flow of microscopic particles called electrons flowing through wires and electronic components and appliances.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • Tests are also available to check stool samples for microscopic amounts of blood and for cells that indicate severe inflammation of the colon.

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  • If the physician suspects a fungal infection of the scalp, a hair sample may be tested by microscopic examination in the laboratory.

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  • Microscopic examination of a hair plucked at the periphery of the hair loss area often reveals a characteristic disruption of the integrity of the hair shaft.

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  • Physical examination and routine x rays may yield enough evidence to diagnose benign bone tumors, but removal of tumor tissue for microscopic analysis (biopsy) is the only sure way to rule out malignancy.

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  • In many cases, these tests cannot detect the microscopic damage that occurs when fibers are stretched in a mild, diffuse injury.

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  • In some cases, a microscopic examination of skin cells is also performed.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • In some anemias, a bone marrow sample will be removed (bone marrow biopsy) for microscopic examination, especially to confirm iron deficiency anemia or the megaloblastic anemias.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • Urine and blood tests may be ordered to check for microscopic amounts of blood in the urine and to obtain a complete differential blood count.

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  • Biopsy-The surgical removal and microscopic examination of living tissue for diagnostic purposes or to follow the course of a disease.

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  • Removing a small piece of muscle tissue for microscopic examination is called a muscle biopsy.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • Diagnosis is based on microscopic examination of scrapings taken from lesions.

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  • This snail-shaped structure contains fluid and thousands of microscopic hair cells tuned to various frequencies, in addition to the organ of Corti (the receptor for hearing).

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  • Muscle biopsy, in which a small piece of muscle tissue is removed for microscopic examination.

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  • This snail-shaped structure contains fluid and thousands of microscopic hair cells tuned to various frequencies, in addition to the organ of Corti (the receptor for hearing).

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  • Definitive diagnosis is achieved through karyotyping, which involves drawing the baby's blood for a microscopic examination of the chromosomes.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • Laboratory testing of urine samples as of the early 2000s can be performed with dipsticks that indicate immune system responses to infection, as well as with microscopic analysis of samples.

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  • Diagnosis for eosinophilic gastroenteropathies is therefore only established on microscopic analysis of a tissue specimen (biopsy) revealing eosinophilic infiltration.

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  • Biopsy-The surgical removal and microscopic examination of living tissue for diagnostic purposes or to follow the course of a disease.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • In the microscopic examination of a stained blood smear (differential), red cells may appear smaller than normal.

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  • Confirmation may also be obtained by taking a bone marrow sample (bone marrow biopsy) for microscopic examination.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • T. pallidum subspecies endemicum can be detected by microscopic study of samples taken from the sores or lymph fluid.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • All houses contain large numbers of microscopic insects called house mites.

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  • Biopsy-The surgical removal and microscopic examination of living tissue for diagnostic purposes or to follow the course of a disease.

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  • Mycobacterium tuberculosis is a microscopic, rod-shaped bacterium.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • Biopsy-The surgical removal and microscopic examination of living tissue for diagnostic purposes or to follow the course of a disease.

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  • The doctor may scrape off a small piece of affected skin for microscopic examination or direct the person to discontinue use of any potential irritant that has recently come into contact with the affected area.

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  • Chromosome-A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA.

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  • None of the company's products are tested on animals, and they all incorporate both organic ingredients and state-of-the-art microscopic technology to offer the best hair care available.

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  • New clients are given a free consultation and a microscopic hair and scalp analysis to help determine which treatment plan is best for their particular type of hair loss.

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  • The Microscopic Follicular Unit Hair Transplant is done with the use of high-powered surgical microscopes.

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  • This disease is caused by a microscopic parasite called Ichthyophthirius multifiliis, and it resembles small, white dots along the body of the fish.

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  • Flukes are microscopic parasites that embed themselves in the gills of the fish.

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  • The result is a material filled with thousands of microscopic pores.

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  • Pollen starts life as a microscopic powder, but bees mix it with a few other substances to pack it into a thicker, more granular form that is easier to carry and store.

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  • Inside your digestive system are millions of microscopic organisms.

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  • Suprema Dophilus Multi Probiotic Digestive Supplement: Each capsule contains 4 billion beneficial microscopic organisms.

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  • The Dyson DC23 is a canister vacuum cleaner featuring Level III Root Cyclone technology that captures microscopic dust.

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  • Obviously, something this microscopic in size can't be seen without the use of a high-powered microscope.

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  • You're going to want a heel for a special occasion, but pumps with microscopic toothpick heels aren't the best for an outside wedding.

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  • Because of their microscopic size once an aquatic form of algae begins growing in a swimming pool, it generally goes unnoticed until there are hundreds of thousands, if not millions, of organisms.

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  • For example, those with rheumatoid arthritis, lupus, type 1 diabetes, autoimmune thyroid disease or microscopic colitis may be more at risk than the average person.

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  • When you exercise, you do microscopic damage to your muscle cells.

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  • One side has many microscopic hooks that connect to your bra and other side is made from a soft, comfortable non-slip material.

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  • The side that attaches to the strap is comprised of microscopic hooks, while the opposite side is a hypoallergenic material that acts to grip against the skin, without any adhesives to leave a nasty residue.

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  • The microscopic fungi responsible for toenail fungus are found, not surprisingly, in damp areas like shower stalls, public gyms and swimming pools.

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  • This, in turn, may kill off the microscopic fungi causing the problem in the first place.

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  • This is a result of microscopic burns on the skin.

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  • van Leeuwenhoek discovered bacteria, and it was soon found that however carefully organic matter might be protected by screens, or by being placed in stoppered receptacles, putrefaction set in, and was invariably accompanied by the appearance of myriads of bacteria and other low organisms. As knowledge of microscopic forms of life increased, so the apparent possibilities of abiogenesis increased, and it became a tempting hypothesis that whilst the higher forms of life arose only by generation from their kind, there was a perpetual abiogenetic fount by which the first steps in the evolution of living organisms continued to arise, under suitable conditions, from inorganic matter.

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  • Pasteur that the occurrence of abiogenesis in the microscopic world was disproved as much as its occurrence in the macroscopic world.

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  • The nature of sterilization, and the difficulties in securing it, as well as the extreme delicacy of the manipulations necessary, made it possible for a very long time to be doubtful as to the application of the phrase omne vivum e vivo to the microscopic world, and there still remain a few belated supporters of abiogenesis.

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  • Various attempts have been made to classify corals according to the arrangement of the septa, the characters of the theca, the microscopic structure of the corallurn, and the anatomy of the soft parts.

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  • As the microscopic character of the corallum of these extinct forms agrees with that of recent corals, it may be assumed that the anatomy of the soft parts also was similar, and the tetrameral arrange ment, when present, may obviously be referred to a stage when only the first two pairs of Edwardsian mesenteries were present and septa were formed in the intervals between them.

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  • Most frequently they occur lying on the bedding planes of black shales; less commonly they are met with in many other kinds of sediment, and when in limestone they may retain much of their original relief and admit of a detailed microscopic study.

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  • It has, however, been demonstrated that the senile whitening of human hair is due to the presence of phagocytes, which devour the pigment-bodies; and from microscopic observations recently made by the French naturalist Dr E.

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  • Ferrous carbonate, FeCO3, or spathic iron ore, may be obtained as microscopic rhombohedra by adding sodium bicarbonate to ferrous sulphate and heating to 150° for 36 hours.

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  • Her other works are the Connexion of the Physical Sciences (1834), Physical Geography (1848), and Molecular and Microscopic Science (1869).

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  • No doubt careful microscopic scrutiny of the minute anatomy of the leaves of plants grown under various conditions would reveal further adaptations of structure to external conditions of climate.

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  • Microscopic sections show that flint is very finely crystalline and consists of quartz or chalcedonic silica; colloidal or amorphous silica may also be present but cannot form any considerable part of the rock.

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  • In most microscopic observations the object is mounted on a plane glass plate or slide about o 06 in.

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  • If microscopic preparations are observed by diffused daylight or by the more or less white light of the usual artificial sources, then an objective of fixed numerical aperture will only represent details of a definite fineness.

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  • For the microscopic observation it is the same as if a thin section of a thickness of 2 to 4 had been shown.

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  • The sine-condition is, however, the most important as far as the microscopic representation is concerned, because it must be possible to represent a surfaceelement through the objective by wide cones of rays.

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  • Illuminating Systems Most microscopic observations are made with transmitted light; an illuminating arrangement is therefore necessary, and as the plane of the object is nearly always horizontal or only slightly inclined, the illuminating rays must be directed along the optical axis of the microscope.

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  • One way of receiving a stereoscopic impression through a microscope is by fixing an apparatus as directly as possible above the last lens of the microscopic objective, which divides the rays passing out and directs half into each eyepiece.

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  • The errors attending the determination of the size of a microscopic object depend chiefly on the accuracy of the objective micrometer; any errors in the micrometer being magnified by the objective.

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  • Microscopic sections of some of the more coherent clays and shales may be prepared by saturating them with Canada balsam by long boiling, and slicing the resultant mass in the same manner as one of the harder rocks.

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  • A microscopic voice inside warned her to stop, but desire put uncontrolled passion into her response.

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  • Dead, microscopic algae will clump together into particles large enough to be removed by filtration.

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  • The distinctive microscopic anatomy of hazel wood allows definite identification of well-preserved specimens of wood and charcoal.

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  • The bacteria that cause TB are inhaled in the form of microscopic droplets that come from a person infected with TB.

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  • To extend the duration of an application the granules can be coated with a resin which has microscopic pores to release the fertilizer.

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