What's the difference between diapason and principal?

Diapason


Definition:

  • (n.) The octave, or interval which includes all the tones of the diatonic scale.
  • (n.) Concord, as of notes an octave apart; harmony.
  • (n.) The entire compass of tones.
  • (n.) A standard of pitch; a tuning fork; as, the French normal diapason.
  • (n.) One of certain stops in the organ, so called because they extend through the scale of the instrument. They are of several kinds, as open diapason, stopped diapason, double diapason, and the like.

Example Sentences:

  • (1) The minimal time of stimulus exposition necessary for preserving differences in EEG activation reactions to nonreinforced stimuli of different intensity (in a diapason from 3.5 to 250 lk) was shown to exceed 1 s. After giving the signal meaning to the flashes the minimal time of stimulus exposition when the animals were capable to discriminate intensity of the flashes (in a diapason from 3.5 to 30 lk) just at the first presentation, was equal to 0.1 s. Decrease of the minimal time of stimulus exposition necessary for discrimination of the light signals was supposed to be stipulated by their biological significance and presetting of the analyzing system being organized by preliminary learning a crude analysis of stimuli.
  • (2) Inspirations become apneustic with weak dependence on VT (diapason I).
  • (3) Such a signal was experimentally reproduced by activating a diapason bathed in saline solution.
  • (4) The preservation of the effect of dynamic scanning of a part of the orientation diapason during development of neuron responses in the primary visual cortex of cat was examined after equalization of their latencies and after estimation of only highly significant fragments of their reactions.
  • (5) and intensity diapason of 0,1-1,0 lux the scotopic electroretinogram (ERG) consists of the following waves: b, b-negative, c, d, d-positive, respectively.
  • (6) It appears in prone subjects owing to the assiduous practice of music, and is ruled by the temperament and diapason.
  • (7) It was found that this effect was preserved in 13 neurons out of 17 examined ones: it remained invariable in 7 units of this group and was modified due to a shift of the scanning beginning along the diapason of orientations, to an increase of scanning diapason or to a change of scanning direction.
  • (8) A similar echo-doppler signal was obtained by a diapason vibrating in isotonic solution.
  • (9) Under the conditions of intraventricular injection DSIP induced stable augmentation of oscillations in a diapason of 14-16 Hz in the neocortex, and its analogues induced similar changes in a nearby frequency diapason of 9.6-11 Hz.
  • (10) Then TI quickly diminished, inverse relationship between VT and TI was preserved (diapason II).
  • (11) One more common feature of EEG-reactions to catecholaminergic disturbances was found to consist of the reciprocal narrow-band shifts in the theta- and delta-diapasons.
  • (12) In the bounds of investigating the etiological factor in the onset of allergic contact dermatitis, with a special review of the professional etiology and the localization of face manifestations, we have placed a special emphasis on the forming of special batteries of allergens which would to a greater extent, cover a great number of specific professions and a wide diapason of unprofessional everyday activities of our climate.
  • (13) In hippocampus there was an increase in absolute power of dominant theta-diapason.

Principal


Definition:

  • (a.) Highest in rank, authority, character, importance, or degree; most considerable or important; chief; main; as, the principal officers of a Government; the principal men of a state; the principal productions of a country; the principal arguments in a case.
  • (a.) Of or pertaining to a prince; princely.
  • (n.) A leader, chief, or head; one who takes the lead; one who acts independently, or who has controlling authority or influence; as, the principal of a faction, a school, a firm, etc.; -- distinguished from a subordinate, abettor, auxiliary, or assistant.
  • (n.) The chief actor in a crime, or an abettor who is present at it, -- as distinguished from an accessory.
  • (n.) A chief obligor, promisor, or debtor, -- as distinguished from a surety.
  • (n.) One who employs another to act for him, -- as distinguished from an agent.
  • (n.) A thing of chief or prime importance; something fundamental or especially conspicuous.
  • (n.) A capital sum of money, placed out at interest, due as a debt or used as a fund; -- so called in distinction from interest or profit.
  • (n.) The construction which gives shape and strength to a roof, -- generally a truss of timber or iron, but there are roofs with stone principals. Also, loosely, the most important member of a piece of framing.
  • (n.) In English organs the chief open metallic stop, an octave above the open diapason. On the manual it is four feet long, on the pedal eight feet. In Germany this term corresponds to the English open diapason.
  • (n.) A heirloom; a mortuary.
  • (n.) The first two long feathers of a hawk's wing.
  • (n.) One of turrets or pinnacles of waxwork and tapers with which the posts and center of a funeral hearse were formerly crowned.
  • (n.) A principal or essential point or rule; a principle.

Example Sentences:

  • (1) In addition to their involvement in thrombosis, activated platelets release growth factors, most notably a platelet-derived growth factor (PDGF) which may be the principal mediator of smooth muscle cell migration from the media into the intima and of smooth muscle cell proliferation in the intima as well as of vasoconstriction.
  • (2) While stereology is the principal technique, particularly in its application to the parenchyma, other compartments such as the airways and vasculature demand modifications or different methods altogether.
  • (3) Chromatography and immunoassays are the two principal techniques used in research and clinical laboratories for the measurement of drug concentrations in biological fluids.
  • (4) This paper reports, principally, the caries results of the first three surveys of 5, 12 and 5-year-olds undertaken at the end of 1987, 1988 and 1989, respectively.
  • (5) Rigidly fixing the pubic symphysis stiffened the model and resulted in principal stress patterns that did not reflect trabecular density or orientations as well as those of the deformable pubic symphysis model.
  • (6) The binding parameters indicate that the principal activating effect of UMP is not simply to increase the affinity of the enzyme for glucose.
  • (7) Mononuclear phagocytic cells from patients with either principal form of leprosy functioned similarly to normal monocytes in phagocytosis while their fungicidal activity for C. pseudotropicalis was statistically significantly altered and was more evident in the lepromatous than in the tuberculoid type.
  • (8) In the terminal segment of the hamster epididymidis there was some evidence of micro-merocrine protein secretion a the level of the principal cells and clear evidence of granular secretion in the light cells, presumable of glycoproteins.
  • (9) In the analysis of background fluorescence, the principal components were, as for the two-step technique, autofluorescence and propidium spectral overlap.
  • (10) However, at Period B, neutrophil numbers in the BAL fluid were increased in the principal but not in the control animals.
  • (11) Principal conclusions are: 1) rapid change to predominantly heterosexual HIV transmission can occur in North America, with serious societal impact; 2) gender-specific clinical features can lead to earlier diagnosis of HIV infection in women; 3) HIV infection in women does not pursue an inherently more rapid course than that observed in men.
  • (12) The concentrations of the principal extratesticular androgens and estradiol do not seem to have a quantitative influence on these androphilic proteins either.
  • (13) A principal function of GPIb is its attachment to von Willebrand Factor (vWF) on injured blood vessels which leads to the adhesion of platelets to these vessels.
  • (14) The principal variables influencing a particular configuration and their effects are indicated.
  • (15) The principal form of HMTs produced by these human peripheral blood monocytes has been subjected to biochemical, functional, and serological characterization.
  • (16) Micronutrient antioxidants such as alpha-tocopherol, the principal lipid-soluble antioxidant, assume potential significance because levels can be manipulated by dietary measures without resulting in side effects.
  • (17) Cytochrome oxidase histochemistry revealed patchy patterns of the enzyme activity in transverse sections through the caudal part of the ventral subnucleus of the principal sensory trigeminal nucleus, interpolar spinal trigeminal nucleus, and layer IV of the caudal spinal trigeminal nucleus in the cat.
  • (18) 3. an up-to-date review of the principal methods and systems used to measure the sedimentation rate--Automation of the Westergren initial methodology.
  • (19) • Queen Margaret Union, one of the University of Glasgow's two student unions, says 200 students there are marching on the principal's office at the moment to present an anti-cuts petition.
  • (20) This observation provides corroboration for the identification of the principal CCK-I neuron in the rat olfactory bulb as the centrally projecting middle tufted cell.

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