(n.) A body or space contained under a single surface, which in every part is equally distant from a point within called its center.
(n.) Hence, any globe or globular body, especially a celestial one, as the sun, a planet, or the earth.
(n.) The apparent surface of the heavens, which is assumed to be spherical and everywhere equally distant, in which the heavenly bodies appear to have their places, and on which the various astronomical circles, as of right ascension and declination, the equator, ecliptic, etc., are conceived to be drawn; an ideal geometrical sphere, with the astronomical and geographical circles in their proper positions on it.
(n.) In ancient astronomy, one of the concentric and eccentric revolving spherical transparent shells in which the stars, sun, planets, and moon were supposed to be set, and by which they were carried, in such a manner as to produce their apparent motions.
(n.) The extension of a general conception, or the totality of the individuals or species to which it may be applied.
(n.) Circuit or range of action, knowledge, or influence; compass; province; employment; place of existence.
(n.) An orbit, as of a star; a socket.
(v. t.) To place in a sphere, or among the spheres; to insphere.
(v. t.) To form into roundness; to make spherical, or spheral; to perfect.
Example Sentences:
(1) Mike Ashley told Lee Charnley that maybe he could talk with me last week but I said: ‘Listen, we cannot say too much so I think it’s better if we wait.’ The message Mike Ashley is sending is quite positive, but it was better to talk after we play Tottenham.” Benítez will ask Ashley for written assurances over his transfer budget, control of transfers and other spheres of club autonomy, but can also reassure the owner that the prospect of managing in the second tier holds few fears for him.
(2) Quantitative measurements of image contrast were carried out for B-mode images of anechoic spheres (cysts) embedded in a random scattering medium.
(3) The relation between genetic counseling and the procreation sphere among the studied families is presented.
(4) Despite Facebook's size and reach, and its much-vaunted role in the short-lived Arab spring , there are reasons for thinking that Twitter may be the more important service for the future of the public sphere – that is, the space in which democracies conduct public discussion.
(5) I care far more that women are absolutely essential to political life, influential at every level, and are leading dynamic conversations in the public sphere around social and cultural change.
(6) The algorithm is an improvement over the sphere model in that it considers two distinct surfaces: an ellipsoid, to model the region of the skull on which the sensors are placed, and a sphere as the medium in which the current dipole model is considered.
(7) The yolk spheres, which were free of precipitates, gave the characteristic signal of the nitrogen K-edge.
(8) In family therapy, the analysis of secret implies not only to define the network of the concerned persons, but also the definition of the bonds between the secret and loyalties, the distribution of power, the alliances and the definitions of the private sphere (proper to each family) and of the protective function of the secret.
(9) The sphering agent lysolecithin is less effective in reducing red cell deformability, when the external calcium-concentration is kept low.
(10) The magnitude of changes in both energy interaction and intensity were used to explore the degree of outer and inner sphere coordination, incidence of covalency and the extent of metal 4f-orbital involvement in chemical bonding.
(11) Ultrastructurally, hemolytic concentrations of tributyltin can be visualized in the electron microscope by osmium staining during fixation as electron-dense spheres penetrating the lipid bilayer of the erythrocyte plasma membrane.
(12) In the present paper the images produced by spheres of varying diameter (d = 4,6,8,10 mm) embedded in a homogeneous substance of varying densities (H' = 3,48,93,137 Hounsfield units) as produced by computer tomography were studied.
(13) The typical elements of risk (tobacco, age, socio-professional sphere) reappear in this study.
(14) Our results showed that a lower percentage of normal subjects and a lower percentage of constipated patients were able to pass a 1.8 cm incompressible sphere compared with a 50 ml deformable balloon, although constipated patients found it more difficult than normal subjects to expel both types of simulated stool.
(15) A transient 5-coordinate intermediate might play a role in the mechanism of action of carbonic anhydrase by facilitating ligand exchange reactions within the inner coordination sphere of the Zn(II) ion at the active center.
(16) The expression of WAP appears to be dependent upon the formation of the alveoli-like spheres: prevention of sphere formation by fixation or drying of the matrix abolishes the expression of WAP.
(17) The SAR patterns in birds, however, varied markedly from those obtained from spheres of comparable mass.
(18) The depth of FAD incorporation into the enzyme molecule as calculated according to the outer sphere electron transfer theory is 6.1 A.
(19) For the hard-sphere model used in these calculations, it was found that current helix-coil transition theory does not predict the correct perturbed dimensions.
(20) These questions are the points of collision of two immensely important spheres of interest in our everyday life.
Spheroid
Definition:
(n.) A body or figure approaching to a sphere, but not perfectly spherical; esp., a solid generated by the revolution of an ellipse about one of its axes.
Example Sentences:
(1) Microelectrodes were used to measure the oxygen tension (PO2) profile within individual spheroids at different stages of growth.
(2) Aside from typical nuclear spheroids, irregularly shaped nuclei were frequently seen, associated with increased nuclear folds, transitional stages between nuclear folds and nuclear spheroids were also present.
(3) The nuclei in these typical onocytes appeared oval or spheroid.
(4) The tumor cells of these melanomas are characterized by spheroidal melanosomes and containing pheomelanins.
(5) This is a clinical, histopathological and electron microscopical study on the spheroidal degeneration of the cornea by means of 48 histologically verified cases.
(6) Our results show the feasibility of back-extrapolating multicellular tumour spheroid growth curves to obtain survival estimates that can be applied to establish sublethal damage repair capacity.
(7) HCG, E2 and P4 were secreted into the culture medium throughout the entire culture period, in proportion to spheroid size.
(8) In addition, it was observed that the higher resistance of the V79 spheroid cells than the monolayers to gamma-irradiation is not diminished in the pion peak, suggesting that the underlying phenomenon of intercellular communication influences cell survival even after high-LET irradiation.
(9) Under the 3-dimensional geometry of the spheroid system, there was, however, generally a more extensive ECM.
(10) The spheroids grew exponentially with a volume-doubling time of approximately 24 h up to a diameter of approximately 580 microns and then the growth rate tapered off, more for spheroids grown at the low than at the high oxygen tension.
(11) The cytotoxicity of doxorubicin (DX), 4'-O-methyl-DX (MET-DX), 4'-deoxy DX (DEO-DX), 4'-deoxy-4'-iodo-DX (IODO-DX), daunorubicin (DNR)and 4-demethoxy-DNR (DM-DNR) on LoVo cells cultured as a monolayer (in exponential and stationary phases of growth) and as spheroids, are evaluated following 1-h exposure to the drugs.
(12) Under conditions of severe hypoxia (< 0.01% O2), 2 h of pretreatment or 18 h of simultaneous treatment with SR 4233 did not significantly enhance the effectiveness of 131I-NR-LU-10 in spheroids.
(13) The reported prevalence and severity of primary spheroidal degeneration in Labrador and nothern Newfoundland is based on a survey of 929 patients.
(14) Apparently the latter represented conglomerates of adherent spheroid elements that resembled somewhat "large bodies" of L-forms.
(15) The results of immunotitration and immunodiffusion experiments and of the sodium dodecyl sulfate-polyacrylamide gel electrophoretic analysis of immunoprecipitates revealed: (i) a high degree of immunochemical identity of this enzyme only within the family Enterobacteriaceae; (ii) intermediate-to-weak cross-reaction with the phenylalanyl-tRNA ligases from Pseudomonadaceae, Rhodopseudomonas spheroides, and Bacillus stearothermophilus; (iii) no detectable cross-reaction (with the methods employed) with the enzymes from several gram-positive organisms, Euglena gracilis, and several fungi.
(16) Histological alterations included nerve fibre swelling and degeneration, occasional spheroids, astrocytic gliosis, increased macrophage activity and increased perivascular collagen.
(17) The photosynthetically-incompetent mutant V-2 of Rhodopseudomonas spheroides which is incapable of synthesising bacteriochlorophyll was grown aerobically under conditions of both high and low aeration.
(18) Transplanted spheroids continued to express the growth inhibitory activity.
(19) The outer-layer cells of spheroids and fed plateau monolayers peaked at a similar density; the majority of middle-layer cells banded close to unfed plateau and exponential hypoxic monolayers, while most inner-layer cells banded where fed or unfed plateau hypoxic monolayer peaked in density.
(20) Survival of spheroid and monolayer cells after hypertonic NaCl treatment was identical.