(1) On the average, there is 7% less non-freezable water in the cortex of a cataractous lens than in the cortex of a normal lens.
(2) Contents of water in mitochondria were increased significantly with the ratio of freezable water to unfreezable water unchanged.
(3) It is calculated as the difference between the non-freezable water content of a normal lens and that of a cataractous lens of the same age.
(4) However, the effects of decreasing freezable water, and the direct effect on the junction zones, produced by sugars seem to be different from the effects produced by polyols.
(5) Water proton spin-spin relaxation times (T2) and the content of bound, "non-freezable" at -9 degrees C water in both normal human lenses and human lenses of different stages of cataract progression (cataracta incipiens, nondum matura, mature hypermatura) were measured by NMR spin echoes method.
(6) This paper will review some of the methodologies used by us in studying food systems: 1) Differential Scanning Calorimetry (DSC): for determining freezable water, melting point, Tg' (see text), etc.
(7) Water taken up on the Baumann apparatus predominantly is freezable, that is free and only physical bound water.
(8) No variation was observed according to the ejaculation frequency; the best freezability was obtained in winter but the difference was small compared to between-stallion variability and optimization of frequency and season did not change a 'bad freezer' into a good one.
(9) Our intention was to determine the fraction of freezable water in tissue.
(10) Sections, weighing 10-20 mg, were analyzed for total water content by thermogravimetric analysis and for freezable water content by differential scanning calorimetry.
(11) The bound (nonfreezable) water content was calculated as the difference between total and freezable water.
(12) The results show that there is a possibility of detecting boars with spermatozoa with potential low freezability.
(13) In the present study it was attempted to improve the freezability rate of demiembryos by culturing them on a monolayer of bovine oviduct epithelial cells (BOEC) prior to freezing.
(14) Delay of the freezing process for greater than 1 hour after semen delivery caused a deleterious effect to the freezability of sperm.
(15) The excess function represents the changes that occur, for example, in non-freezable water content due to cataractogenesis.
(16) The freezable water content of the lenses was obtained by differential scanning calorimetry.
(17) Each hyaluronic acid and each different salt form has a maximum non-freezable water content at a set concentration beyond which the bound (non-freezable) water decreases.
(18) Freezable water was detected in the cells only at a water activity above 0.75 by differential scanning calorimetry.
(19) Simultaneously the semen freezability was decreased.
(20) Both sugars and polyols are believed to reduce the amount of freezable water and to promote plasticization and molecular mobility of agarose chains in gels, thus shifting the glass transition temperatures to lower temperatures.
Thaw
Definition:
(v. i.) To melt, dissolve, or become fluid; to soften; -- said of that which is frozen; as, the ice thaws.
(v. i.) To become so warm as to melt ice and snow; -- said in reference to the weather, and used impersonally.
(v. i.) Fig.: To grow gentle or genial.
(v. t.) To cause (frozen things, as earth, snow, ice) to melt, soften, or dissolve.
(n.) The melting of ice, snow, or other congealed matter; the resolution of ice, or the like, into the state of a fluid; liquefaction by heat of anything congealed by frost; also, a warmth of weather sufficient to melt that which is congealed.
Example Sentences:
(1) Collagen production of rapidly thawed ligaments was studied by proline incubation at 1 day, 9 days, or 6 weeks after freezing and was compared with that of contralateral fresh controls.
(2) Following thawing, the initial motility index (MI) scores of mf cryopreserved by either method were not significantly different from untreated controls; however, over a period of 15 days in culture the MI scores of both cryopreserved groups showed a small but significant overall decline, with the methanol technique producing the lowest scores.
(3) In order to maintain its activity, the enzyme was always stored in 1.0-ml aliquots at temperatures below -20 degrees C and each aliquot when thawed was used immediately; any left over enzyme was never reused.
(4) Cryotherapy with high-flow nitrous oxide was applied to the lid margin for 45 seconds in a freeze-thaw-freeze cycle.
(5) Three freeze-thaw cycles released a large proportion (50% to 60%) of the TCA-precipitable radioactivity from the worms.
(6) The effects of intravenous administration of DDAVP to blood donors and the use of DDAVP plasma for the production of cryoprecipitate in the closed thaw-siphon system were evaluated.
(7) Binding of [125I]-labelled ifenprodil, a non-competitive N-methyl-D-aspartate (NMDA) antagonist acting at the polyamine domain, was studied in washed, frozen-thawed synaptic membranes.
(8) These observations may be important in the development of laboratory protocols for freezing and clinical protocols for using frozen-thawed sperm.
(9) After being thawed at room temperature, the two CM samples were compared as to their pH, spinnbarkeit and ferning patterns, and it was found that they are quite similar.
(10) Freeze-thawed epimastigotes were used as a control antigen.
(11) To gain some understanding of the mechanism of cell fusion, cell ghosts prepared by freeze-thawing intact cells were incubated with intact cells.
(12) Particularly, the losses during blanching and thawing (drip) are discussed.
(13) However, mitochondrial susceptibility to rupture by freezing and thawing was not affected.
(14) Jackets were frozen for storage and were later thawed and placed on experimental alien lambs.
(15) This case illustrates: (1) acid medium, chymotrypsin, or sucrose are not needed for the procedure of zona cutting; (2) the zygotes resulting from zona cutting survive through freezing and thawing; and (3) oocyte retrieval can be done concomitant with conservative surgery for endometriosis.
(16) Ten eyes were treated with a single freeze-thaw cycle and were observed for 3 to 18 months.
(17) The choice of optimal freezing and thawing parameters is discussed.
(18) Although freezing and thawing produced additional decrements in all the assays, the hypotonic stress response was better by a factor of 3.5 than that previously obtained in a cryopreservation method using 0.5 molar glycerol.
(19) Lamb leg and rib roasts were more tender when cooked from the thawed state.
(20) Four- and eight-cell embryos from 3 mouse genotypes were cryopreserved to study the relationship of genetics and freezing variables on post-thaw survival.