(a.) Having the property of dichroism; as, a dichroic crystal.
Example Sentences:
(1) The assembly reaction is accompanied by characteristic changes in fluorescence emission and dichroic absorption.
(2) Synthesis products have been identified, and three chromophores have been displayed by their n----II and II----II dichroic transitions.
(3) No alteration in the circular dichroic spectrum of fully active, membrane-bound (Na+ + K+)-ATPase is observed when the protein is cycled between the two major conformational states, E1 and E2.
(4) The visible and ultraviolet circular dichroic spectra resulting from the interaction of bovine alpha-lactalbumin with successive Cu(II) ions have been recorded under a variety of conditions.
(5) Neither the modification of ALBP with NEM nor the addition of oleic acid had a significant effect on protein structure, as judged by circular dichroic analysis.
(6) Circular dichroic studies and hydropathy profiling of the amino-acid sequence of this 'lac' permease suggest a secondary structure in which the polypeptide consists of 12 hydrophobic segments in alpha-helical conformation that traverse the membrane in zig-zag fashion connected by shorter, hydrophilic domains with most of the charged residues and many of the residues commonly found in beta-turns.
(7) Secondary structure prediction and analysis of far-ultraviolet circular dichroic spectra have revealed that G1 and G2 consist predominantly of beta-structure with a little alpha-helical content.
(8) The amount of alpha-helicity thus obtained is in agreement with previously obtained results based on circular dichroic measurements at far UV.
(9) Circular dichroic spectra of the lipophorins and apolipophorin from 190 to 250 nm showed a single trough at 218 nm and a peak at 194 nm.
(10) UV irradiation of the chromatin caused an increase of the positive circular dichroic band in the vicinity of 275 nm (corresponding to DNA) and a deepening of the negative band of proteins at about 225 nm.
(11) Circular dichroic (CD) spectra showed that the normal protein and that activated by substitution of Ala59 to Thr59 are very similar in their overall structure.
(12) Even the most extensive carbamylation led to only marginal changes in the circular dichroic (CD) spectra of these substances and none in sedimentation coefficients studied.
(13) 270 MHz magnetic resonance and circular dichroic studies show that the two C-terminal peptides are unable to form secondary or tertiary structure.
(14) The dichroic ratios were found to be similar for both cytochromes a and a3.
(15) The enzyme-bound pyridoxal 5'-phosphate shows negative circular dichroic extrema, in contrast with other pyridoxal 5'-phosphate acting on L-amino acids.
(16) Whilst the binding of the nucleolin repeat to DNA does not significantly alter its conformation, the binding of H1 repeat induces a very marked DNA condensation, giving rise to a psi(-)-type circular dichroic spectrum.
(17) Circular dichroic (CD) spectra have been obtained and resolved for EGF, several well-characterized chemical and enzymic derivatives, and related low molecular weight model compounds.
(18) Other dichroic beamsplitters efficiently separate two planes of polarization in a narrow wavelength band.
(19) Circular dichroic (CD) and magnetic CD spectra indicate that the first Co2+ binding site is tetrahedral-like and that the second is octahedral-like.
(20) The circular dichroic spectra did not show any basic conformational differences in the backbone peptide chain of oxytocin and vasopressin substances.
Dichromatism
Definition:
(n.) The state of being dichromatic.
Example Sentences:
(1) Although the lens did not alter stereopsis, it did produce severe color discrimination losses for normal and dichromatic subjects.
(2) Furthermore, it was suggested that the patterns of the panel D-15 test differ by the convergence points among dichromats even of the same type.
(3) Discrimination tests reveal that these squirrels have dichromatic colour vision with spectral neutral points centered at 507.5 nm.
(4) The results indicate that dichromatic and trichromatic monkeys differ only trivially on tests where performance is based on the contributions of non-opponent mechanisms, that the contribution of spectrally opponent mechanisms to the "brightness signal" is very similar in trichromatic and dichromatic monkeys, and that in increment-threshold discriminations where there are both chromaticity and luminance cues some test wavelengths yield superior performance for trichromats while others appear to favor the dichromat.
(5) Both sets of data for the two types of dichromat satisfy linearity properties.
(6) Spectral characteristics of X-linked Dichromats (13 protanopes, 20 deuteranopes) were studied with spectral ERG.
(7) The results imply that newborns have some, albeit limited, ability to discriminate chromatic from achromatic stimuli and hence, that they are at least dichromats.
(8) Measurements were carried out using noninvasive techniques: quantitative computer tomography and dual photon absorptiometry (mono- and dichromatic).
(9) Many errors were due to the small number of protanopes averaged and inability to distinguish trichromats from dichromats.
(10) If dichromats lack one of the normal pigments then the upset of these matches monitors the change in spectral sensitivity of a single mechanism.3.
(11) Then, the chromaticity-coordinates of each color cap were calculated using the spectral distribution of standard illuminant C. The theoretical patterns of the panel D-15 test for dichromats were obtained based on the confusion lines.
(12) Two of the four observers had normal trichromatic colour vision; the other two were dichromats (protanopes).
(13) Thus the color vision in these animals is dichromatic.
(14) Spectrophotometric analysis of this blue dye at different concentrations and with or without heparin showed that the reddish hues are due to dichromatism and not metachromasia.
(15) The results suggest that the adult expression of dichromatic color vision does not depend on color experience during the first 4 months of life.
(16) Collectively, these and previous results imply that although newborns have at least dichromatic color vision, they possess relatively poor chromatic-achromatic discrimination in two spectral regions - in the short-wavelengths (including stimuli of 470-480 nm) and in the mid-wavelengths (including 565 nm).
(17) (3)-(8) are consistent and allow the calculation of a maximum optical density for those pigments which underlie the dichromats' long-wave mechanism.
(18) An intense background also changes the relative spectral sensitivity of the dichromats.
(19) Temporal properties of the short-wavelength cone mechanism of the California ground squirrel (Spermophilus beecheyi), a dichromat, were explored with single light pulses and pulse trains.
(20) Sampling was from the femoral artery through a dichromatic cuvette densitometer.