What's the difference between kernel and pith?

Kernel


Definition:

  • (n.) The essential part of a seed; all that is within the seed walls; the edible substance contained in the shell of a nut; hence, anything included in a shell, husk, or integument; as, the kernel of a nut. See Illust. of Endocarp.
  • (n.) A single seed or grain; as, a kernel of corn.
  • (n.) A small mass around which other matter is concreted; a nucleus; a concretion or hard lump in the flesh.
  • (n.) The central, substantial or essential part of anything; the gist; the core; as, the kernel of an argument.
  • (v. i.) To harden or ripen into kernels; to produce kernels.

Example Sentences:

  • (1) Previous attempts to purify this enzyme from the liquid endosperm of kernels of Zea mays (sweet corn) were not entirely successful owing to the lability of partially purified preparations during column chromatography.
  • (2) The presence of the positive-off diagonal of the second-order kernel of respiratory control of heart rate is an indication of an escape-like phenomenon in the system.
  • (3) A method of TLC densitometry was developed to determine the active ingredients (Wuweizisu A, B, C; Wuweizichun A, B; Wuweizi ester and schisanhenol) in Schisandra kernels.
  • (4) Mutant plants are characterized by reduced height, defective yellow striping on leaves, and aborted kernels on ears.
  • (5) The system identification results are in the form of first- and second-order frequency kernels, which are related to temporal kernels that appear in the Wiener functional series.
  • (6) The scattering kernel that was measured and reported in the first paper is now examined more carefully.
  • (7) The theoretical relationships between various types and components of dose-spread kernels relative to photon attenuation coefficients are explored.
  • (8) Only a single slice of the estimated experimental second-order kernel was used in identifying the cascade model.
  • (9) A set of vocalization was used to calculate the kernels of the transformation, and these kernels subserved to predict the responses of the cell to a different set of vocalizations.
  • (10) The answers are sums of the influence or kernel functions of the integral wherever the sum is positive, and zero elsewhere.
  • (11) The appearance-disappearance PERG had a triphasic first-order kernel and a biphasic second-order kernel.
  • (12) A comparison of the time course of this time-locked response with that of the kernel prediction indicated that nonlinear temporal effects of order higher than two are unimportant.
  • (13) There is serious fun to be had browsing its huge bottled beer menu, which runs the gamut of new wave UK breweries, including Kernel, Wild Beer, Hardknott, Camden, and their US inspirations, such as Left Hand and Magic Hat.
  • (14) Wheat kernels with visible Fusarium-damage, naturally infected, have been examined with histochemical techniques to observe mycelium growth inside kernels and change in kernels cells.
  • (15) Larger spots of light or a steady annular illumination transformed the slow horizontal cell kernel into a fast kernel similar to those of the receptors.
  • (16) At no stage of development, wheat alpha-amylase was inhibited by the albumin fractions from the mature kernel.
  • (17) For all the bad blood of the past year, for all the talk of betrayal, there remains the kernel of a progressive consensus.
  • (18) The physical parameters tested were: test weight (TW), endosperm texture (TE), pearling index (IP), 1000 kernel wt (W 1000), infrared reflectance (NIR) and color (Ref).
  • (19) A total of 600 Bosbek day-old broiler chicks (Akropong Farms, Kumasi, Ghana) were randomly allotted to six dietary treatments containing 0, 5, 7.5, 10, 12.5, and 15% palm kernel cake (PKC), respectively.
  • (20) Analysis by kernel density estimation revealed a bimodal distribution of MRs with an antimode of 11.6.

Pith


Definition:

  • (n.) The soft spongy substance in the center of the stems of many plants and trees, especially those of the dicotyledonous or exogenous classes. It consists of cellular tissue.
  • (n.) The spongy interior substance of a feather.
  • (n.) The spinal cord; the marrow.
  • (n.) Hence: The which contains the strength of life; the vital or essential part; concentrated force; vigor; strength; importance; as, the speech lacked pith.
  • (v. t.) To destroy the central nervous system of (an animal, as a frog), as by passing a stout wire or needle up and down the vertebral canal.

Example Sentences:

  • (1) Finally, fosinopril had no effect on the pressor or chronotropic effects of norepinephrine (NE) or 1,1-dimethyl-4-phenylpiperinium (DMPP) or electrical stimulation of the sympathetic ganglia of pithed rats.
  • (2) Relatively weaker GUS activity was also detected in pith parenchyma.
  • (3) Both d- and l-amphetamine were also compared for their pressor and tachycardic activity in pithed rats.
  • (4) Intravenous administration of T-2 to pithed rats did not alter blood pressure or heart rate at a time when, in conscious rats, both blood pressure and heart rate were increased.
  • (5) Monoiodo-Ang II was found to be a potent, full agonist in in vivo bioassays and a more potent (2.5-fold) pressor agent than the native hormone Ang II in the pithed rat.
  • (6) APP 201-533 [3-amino-6-methyl-5-phenyl-2(1H)-pyridinone] was investigated in vivo in anesthetized and unanesthetized dogs and pithed open-chest cats and in vitro in guinea pig atria and papillary muscles, skinned muscle fibers from pig hearts, and rat myocardium.
  • (7) The effects of quinpirole, a specific dopamine DA2 receptor agonist, on autonomic nervous control of heart rate, were studied in normotensive pithed rats, by analysing its action on the tachycardia and bradycardia evoked by electrical stimulation of the cardioaccelerator (10 V; 1 ms; 0.5, 1, 3, 6 Hz) and vagus (10 V; 1 ms; 3, 6, 9 Hz) nerves respectively.
  • (8) Pith cells can shift from the C- to the C+ state by a process known as habituation.
  • (9) The pressor actions of ET3 and arginine vasopressin (AVP) were compared with one another in pithed rats in the presence of the calcium channel activator BAY K 8644 or the calcium channel antagonist nifedipine i.a.
  • (10) Both human endothelin 1 (ET1) and rat endothelin 3 (ET3) produced dose-dependent pressor effects in the pithed rat.
  • (11) Viprostol did not antagonize the tachycardia induced by stimulation of the discrete segments at C7-T1 (cardio-accelerator) of the spinal cord in pithed SHR, suggesting that viprostol did not activate the presynaptic alpha-adrenoceptors.
  • (12) In pithed rats, the vasopressor response to dihydroergotoxine was reduced competitively by yohimbine, and non-competitively by nifedipine, but not by prazosin or methysergide, showing that the vasoconstriction is mediated by alpha 2-adrenoceptors.
  • (13) The antagonistic effects of a new inositol phosphate derivative, D-myoinositol-1,2,6-trisphosphate (PP56), on pressor responses to preganglionic sympathetic nerve stimulation and exogenously administered phenylephrine or neuropeptide Y (NPY) were investigated in vivo in the pithed rat.
  • (14) We conclude that in contrast to the increase in diastolic pressure elicited by B-HT 920, calcium channels are not involved in the cirazoline-induced pressor responses in the pithed cat.
  • (15) Acute or chronic adrenalectomy did not alter the pressor responses and chronotropic effect of angiotensin in the pithed rat.
  • (16) Habituated cells derived from inducible pith cells give rise to normal plants whose leaf and pith tissues require cytokinin for growth in culture.
  • (17) The endovenous perfusion of the splenic material in acidified and alkalinized forms caused significant increases of the mean blood pressure in normal, vagotomized and pithed rats, showing that, in contradiction to previous reports, changes in pH did not affect its hypertensive activity.
  • (18) The dose-response curves of three alpha-agonists noradrenaline, St 587 and B-HT 933 in pithed rats were shifted rightwards by pretreatment (i.v.
  • (19) In pithed rats, only pindolol produced a definite fall of blood pressure.
  • (20) The bradycardia was reduced but not blocked by pre-treatment with guanethidine, yohimbine, propranolol or pithing.