What's the difference between direction and isotropy?

Direction


Definition:

  • (n.) The act of directing, of aiming, regulating, guiding, or ordering; guidance; management; superintendence; administration; as, the direction o/ public affairs or of a bank.
  • (n.) That which is imposed by directing; a guiding or authoritative instruction; prescription; order; command; as, he grave directions to the servants.
  • (n.) The name and residence of a person to whom any thing is sent, written upon the thing sent; superscription; address; as, the direction of a letter.
  • (n.) The line or course upon which anything is moving or aimed to move, or in which anything is lying or pointing; aim; line or point of tendency; direct line or course; as, the ship sailed in a southeasterly direction.
  • (n.) The body of managers of a corporation or enterprise; board of directors.
  • (n.) The pointing of a piece with reference to an imaginary vertical axis; -- distinguished from elevation. The direction is given when the plane of sight passes through the object.

Example Sentences:

  • (1) Direct fetal digitalization led to a reduction in umbilical artery resistance, a decline in the abdominal circumference from 20.3 to 17.8 cm, and resolution of the ascites within 72 h. Despite this dramatic response to therapy, fetal death occurred on day 5 of treatment.
  • (2) One hundred and twenty-seven states have said with common voice that their security is directly threatened by the 15,000 nuclear weapons that exist in the arsenals of nine countries, and they are demanding that these weapons be prohibited and abolished.
  • (3) However, when first trimester specimens were analyzed, the direct-product measurements were significantly larger than the corresponding 3H2O assay results.
  • (4) The generally accepted hypothesis is a coronary spasm but a direct cardiotoxicity of 5-FU cannot be.
  • (5) One hour after direct mechanical cardiomassage (DMCM) a moderately pronounced edema of the intercellular spaces in the basal compartment of the seminiferous epithelium, normal content of lactate and succinate dehydrogenases, and a certain decrease in the activity of glucose-6-phosphate dehydrogenases and NAD- and NADP-diaphorases were noted.
  • (6) Using monoclonal antibodies directed against the plasma membrane of Madin-Darby canine kidney (MDCK) cells, we demonstrated previously that a glycoprotein with an Mr = 23,000 (gp23) had a non-polarized cell surface distribution and was observed on both the apical and basolateral membranes (Ojakian, G. K., Romain, R. E., and Herz, R. E. (1987) Am.
  • (7) Results indicated a .85 probability that Directive Guidance would be followed by Cooperation; a .67 probability that Permissiveness would lead to Noncooperation; and a .97 likelihood that Coerciveness would lead to either Noncooperation or Resistance.
  • (8) Multiple overlapping thin 3D slab acquisition is presented as a magnitude contrast (time of flight) technique which combines advantages from multiple thin slice 2D and direct 3D volume acquisitions to obtain high-resolution cross-sectional images of vessel detail.
  • (9) In addition to oncogenes, the transferred DNA contains genes that direct the synthesis and exudation of opines, which are used as nutrients by the bacteria.
  • (10) A total of 104 evaluable patients 20-90 years old treated by direct vision internal urethrotomy a.m. Sachse for urethral strictures reported retrospectively via a questionnaire their sexual potency before and after internal urethrotomy.
  • (11) However, direct measurements of mediator release should be carried out to reach a firm conclusion.
  • (12) Despite of the increasing diagnostic importance of the direct determination of the parathormone which is at first available only in special institutions in these cases methodical problems play a less important part than the still not infrequent appearing misunderstanding of the adequate basic disease.
  • (13) These data indicate that RNA faithfully transfers "suppressive" as well as "positive" types of immune responses that have been reported previously for lymphocytes obtained directly from tumour-bearing and tumour-immune animals.
  • (14) The occupation of the high affinity calcium binding site by Ca(II) and Mn(II) does not influence the Cu(II) binding process, suggesting that there is no direct interaction between this site and the Cu(II) binding sites.
  • (15) The pancreatic changes are unlikely to be an artefact, but rather a direct toxic effect of the alcohol as confirmed by the biochemical changes.
  • (16) Errors in the initial direction of response were fewer in binocular viewing in comparison with monocular viewing.
  • (17) In the second approach, attachment sites of DTPA groups were directed away from the active region of the molecule by having fragment E1,2 bound in complex, with its active sites protected during the derivatization.
  • (18) The stages of mourning involve cognitive learning of the reality of the loss; behaviours associated with mourning, such as searching, embody unlearning by extinction; finally, physiological concomitants of grief may influence unlearning by direct effects on neurotransmitters or neurohormones, such as cortisol, ACTH, or norepinephrine.
  • (19) Completeness of isolation of the coronary and systemic circulations was shown by the marked difference in appearance times between the reflex hypotensive responses from catecholamine injections into the isolated coronary circulation and the direct hypertensive response from a similar injection when the circulations were connected as well as by the marked difference between the pressure pulses recorded simultaneously on both sides of the aortic balloon separating the two circulations.4.
  • (20) The direct monocyte source is not sufficient to insure the stability of this population.

Isotropy


Definition:

  • (n.) Uniformity of physical properties in all directions in a body; absence of all kinds of polarity; specifically, equal elasticity in all directions.

Example Sentences:

  • (1) It has been demonstrated the reorganization of structure of locus coeruleus in the animals treated intracisternally with 300 micrograms of 6-hydroxydopamine (6-OHDA) which selectively causes the lesion in catecholaminergic system using the method of quantitative estimation of the degree of uniformity and isotropy of structures.
  • (2) In our previous studies we assumed isotropy of the myocardium and linear ventricular gradient.
  • (3) Scaling (i) the three-blob alignment results with estimates of the cortical magnification factor and (ii) the two-blob separation discrimination results with their corresponding neural blur parameter shows an impressive isotropy and blur scale-invariance for the mechanisms mediating differential spatial displacement discrimination across the visual field.
  • (4) Measurements on the polished surface lead to numerical values of a number of parameters characteristic of the surface patterns, such as the relative surface occupied by bone, the mean widths of the trabecular sections, the mean path lengths through the bone or marrow, and a number representing the departure from isotropy of the pattern.
  • (5) These results support the validity of our previous cardiac model in which we assumed isotropy of the myocardium and the homogenous ventricular gradient.
  • (6) The calculated deformation field varies smoothly over space and time and is not constrained by assumptions of isotropy or piecewise homogeneity.
  • (7) For all seven specimens, the model of transverse isotropy provided a better fit of the data than that of isotropy.
  • (8) Quality is compared also in terms of isotropy of the texture and the appropriate blue-noise characteristics in areas of uniform gray tone.
  • (9) The thermodynamic restrictions on the elastic coefficients of linear orthotropic elasticity and linear transversely isotropy elasticity are recorded and it is shown that previously reported data for the elastic orthotropic constants of bone satisfy these thermodynamic restrictions.
  • (10) Results indicate that while the elastic behavior of the aortic wall is globally anisotropic, there exists a state of deformation at which the vessel displays incremental isotropy.
  • (11) It was also shown that this upper-lower temporal anisotropy (and left-right isotropy) is paralleled by a similar disparity-dependent upper-lower anistropy (and left-right isotropy) in spatial resolution.
  • (12) It is shown that it is necessary to give up the usual assumption of homogeneity and isotropy in the extracellular medium.
  • (13) The maximum value of the tangent of the phase angle (tan Delta(max)) is known to be a function of the isotropy of the depolarizing motions.
  • (14) The annulus fibrosus is modelled either as nonhomogeneous fibre reinforced composite or alternatively as homogeneous orthotropic with transverse isotropy.
  • (15) Furthermore, the visceral pleura studied appears to be inelastic and to exhibit in-plane isotropy.
  • (16) The improvements we make on Vito's model are: (i) Vito assumed that the elastic materials which constitute the model 'heart' and 'pericardium' are isotropic; we relax this assumption to that of transverse-isotropy.
  • (17) Considering cartilage to be an elastic material with homogeneity and isotropy, we calculated elastic moduli for femoral, tibial, and patellar cartilages using instant and 15-s deformations after load application.
  • (18) By modeling the substance as a series of lines oriented in particular directions, it is possible to arrive at either a "phase distribution" that expresses the degree of orientation distributed over a range of angles or a series of "primary orientations" that express the degree of orientation at a select number of angles, with an additional measure of the degree of isotropy.
  • (19) Esploratory studies suggested a similar up-down anisotropy and left-right isotropy in spatial resolution.
  • (20) For infinitesimal strains and material isotropy, the stress-strain relationship for the total mixture stress is sigma = - pI-TcI + lambda s(trE)I + 2 musE, where E is the strain tensor and (lambda s, mu s) are the Lamé constants of the elastic solid matrix.

Words possibly related to "isotropy"