inductive effect


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inductive effect

[in′dək·tiv ə′fekt]
(physical chemistry)
In a molecule, a shift of electron density due to the polarization of a bond by a nearby electronegative or electropositive atom.
References in periodicals archive ?
Using the inductive effect interpretation, the electron-withdrawing tendency of the Cl substituent has the potential of reducing the electron density of the phenyl ring and shifting the [[lambda].sub.max] hypsochromically relative to the parent phenol.
This is believed to be the result of an inductive effect by the odontogenic epithelium on the adjacent mesenchymal tissue [10, 11].
The thymus is derived from the third pharyngeal pouch and develops under the inductive effect of neural crest cells.1 Defective development of the thymus is one of the main and consistent features encountered in congenital syndromes, including retinoic acid induced embryopathy.2 Retinoic acid (RA) is a potent teratogen which primarily targets normal neural crest cell migration, affecting the development of neural crest derived structures.3 Impaired neural crest contribution leads to the deranged development of the thymus gland in a manner similar to that observed in congenital conditions, such as DiGeorge syndrome.2,4
Thymus is a primary lymphoid organ derived from the third pharyngeal pouch under the inductive effect of neural crest cells.
As the MA monomer is electron deficient and BMA monomer is electron rich, the MA with BMA neighbor will be more shielded due to the inductive effect and will show the upfield chemical shift, whereas BMA will show a downfield chemical shift.
A perturbation in the corner-cut can produce an inductive effect, which leads to a Chebyshev characteristic.
In this paper, two novel parallel matching methods are proposed with which the capacitive and inductive effect can be canceled simultaneously so that the low insertion loss and relatively high isolation performance can be expected.
Although shown as rising vertically, stacked micro-vias in extra layers may rise at an angle around vertical axis, potentially to contribute to the inductive effect. The number of rise layers may depend on the number of dielectric layers needed for certain package functionality and power consideration.
(2,3) In addition, a drug interaction study of aprepitant and warfarin (4) suggested that the aprepitant regimen has an inductive effect on CYP2C9, a finding that was confirmed in another study of aprepitant and the CYP2C9 probe drug tolbutamide.
AC interference on the pipeline is linked to the inductive effect produced by neighboring HVAC transmission lines.
The ribbon was designed to have an inductive effect that would not be less than the theoretical value, under all conditions.