(a.) Having no determinate form; of irregular; shapeless.
(a.) Without crystallization in the ultimate texture of a solid substance; uncrystallized.
(a.) Of no particular kind or character; anomalous.
Example Sentences:
(1) Type II pigment is extremely electron-opaque after staining with heavy metals to the extent that they appear practically amorphous.
(2) In order for a stone to form, the following conditions would seem to be necessary; transient supersaturation of the saliva in Ca++ and PO4--, a pH greater than normal, intracellular precepitation of amorphous tricalcium phosphate which is transformed into crystalline hydroxyapatite and, then, the fixation of crystals on a "matrix" such as desquamated cells, fibrils and collagens.
(3) Whether or not there were carriers for either amorphous or hypomorphous alleles of the SORD locus in the population studied could not be defined in terms of enzymatic activity levels.
(4) How can a prize that is supposed to be for one person be given to an amorphous supranational organisation?
(5) Within 18-24 h asteroid bodies consisting of an amorphous centre with fine radiating needle crystals were seen.
(6) The paraventricular organ displayed strong amorphous activity accompanied by the intense reaction in the nucleus of the paraventricular organ.
(7) The most probable result of in vivi SnF2 application on sound enamel is the formation of a fluoridated hydroxyapatite together wity stannous complexes and amorphous CaF2.
(8) Scanning electron microscopy was used to examine canine tracheal cartilage and to determine the relationship between the fibrous and amorphous matrix in this tissue.
(9) Immunocytochemical experiments showed that the GP Ib-IX complex and actin-binding protein were associated with the amorphous layer.
(10) The basal lamina first appeared in the form of amorphous deposits and eventually thickened and became continuous.
(11) In addition to exposing the underlying filamentous substructure of the matrix, protease treatment also revealed large, straight fiber bundles and globules of amorphous material suspended in the filamentous web.
(12) In the intraocularly injected rabbits the earliest changes observed in retinal ganglion cells were the severe reduction in microtubule number and the presence of an amorphous material.
(13) Examination of the contents of mouse gallbladders presents views of layered structures and surrounding amorphous material.
(14) Routine electron microscopic examination on the same portion where SPLS were confirmed by PAM electron microscopy revealed amorphous, partially fibrous structures.
(15) Light microscopy revealed deposits of amorphous, eosinophilic material in the pelvis and proximal portion of upper ureter, however tumor cells were not found.
(16) The fibrous component stained with lead citrate while the amorphous stained with the silver porphyrin.
(17) X-ray and infrared analysis of systems suggested the presence of an amorphous form of hydroflumethiazide in coprecipitate systems.
(18) The effects of amorphous silica (Aerosil) and of aluminium hydroxide on anti-DNP IgE antibody production were studied in Swiss mice preimmunized with Ascaris protein and then challenged 7 days later with DNP-ASC.
(19) A granular, amorphous, collagen-free, electron-dense layer was routinely observed between implant and tissue.
(20) According to their periodicity, their banding pattern, their association with polyanionic matrix components and their sensitivity towards glycosaminoglycan-degrading enzymes we could distinguish (1) sheets of amorphous non-banded material consisting of irregularly arranged filaments and containing dermatan sulfate-rich proteoglycans (type I structures), (2) sheets of long-spacing fibrils consisting of parallel orientated filaments and containing chondroitin sulfate-rich proteoglycans (= zebra bodies; type II structures), and (3) fibrillar structures with a complex banding pattern different from that of native collagen fibrils (type III structures).
Vitrification
Definition:
(n.) Same as Vitrifaction.
Example Sentences:
(1) Included in the thermal destruction category are treatment technologies such as rotary kiln incineration, fluidized bed incineration, infrared thermal treatment, wet air oxidation, pyrolytic incineration, and vitrification.
(2) The purpose of the present survey is to show that a general understanding of the physical behavior and biological effects of vitrification solutions, as well as an understanding of the conditions under which vitrification solutions are required, is gradually emerging.
(3) The embryos were transferred to an equilibration medium [10% 1,2-propanediol and 20% glycerol in modified PBS (mPBS)] for 10 minutes and frozen in a vitrification medium (25% glycerol and 25% 1,2-prapanediol in mPBS) by direct lowering into liquid nitrogen.
(4) The key technique, which came into use in 2001, is vitrification.
(5) The results show that the optimum time for exposure of the embryos to the EFS solution before rapid cooling varies with the ambient temperature, i.e., 0.5 min at 25 degrees C, 0.5-5 min at 20 degrees C, 2-5 min at 10 degrees C, and 2-10 min at 5 degrees C. If they are exposed for an optimum period, almost all mouse morulae can survive vitrification (94-100%).
(6) Devitrification (ice formation during warming) is one of the primary obstacles to successful organ vitrification (solidification without ice formation).
(7) After a minimum, an increase of survival is observed at the fastest cooling rates, which would correspond to complete vitrification.
(8) A system has been developed that ensures that a liquid or partially liquid specimen is maintained in its original state while it is being prepared before vitrification and, once prepared, is vitrified with little alteration of its microstructure.
(9) These results suggest that the simple vitrification solution described in this study is effective for the cryopreservation of mouse blastocysts.
(10) Factors that influence the survival of embryos include the concentration and composition of the vitrification solution, the procedure used to equilibrate embryos in this solution, the cooling and warming conditions, and the procedure used to dilute embryos from the vitrification solution.
(11) Preimplantation stage mouse embryos have been used to examine the response of a simple multicellular system to cryopreservation by the complete vitrification of the suspension.
(12) They were cryopreserved by the vitrification method.
(13) Embryos were exposed to intracellular cryoprotecting medium (glycerol 10%, 1-2 propanediol 20% in PBS) for 10 min and then transferred to extracellular vitrification medium (25% glycerol, 25% 1-2 propanediol in PBS).
(14) Vitrification solutions are aqueous cryoprotectant solutions which do not freeze when cooled at moderate rates to very low temperatures.
(15) The possibility of cryopreservation of islets of Langerhans by vitrification using a mixture of cryoprotectants was investigated and the results were compared with a more conventional freezing method using Me2SO as cryoprotectant.
(16) In all cases there was vaporization of the pathological dentition and vitrification of the superficial dentin layer.
(17) Of the 200 DNA-injected 8-cell embryos cryopreserved by vitrification in microdrops, 194 (97%) were recovered and 188 (94%) embryos were intact one hour after thawing.
(18) Vitrification of such specimens is assessed by cryo-X-ray diffraction.
(19) Exposure of oocytes to the cryoprotectant media, but without the vitrification, resulted in 30.8% developing to blastocysts.
(20) Vitrification offers a way to cryopreserve human liver slices for the study of xenobiotic metabolism in humans.