(a.) Having two plane faces; as, the dihedral summit of a crystal.
Example Sentences:
(1) These variants, which yielded a robust illusion, included dihedral angles in place of the arrowheads of the classical pattern.
(2) Time histories of the dihedral angles and residue-residue cross-strand distances are used to study the behavior of the sheet structure.
(3) Comparison of the geometry of the engineered disulfide with those of naturally observed disulfides in proteins shows that the engineered bridge adopts a left-handed spiral conformation with a typical set of dihedral angles and C alpha-C alpha distance.
(4) Via Karplus-type equations, they are transformed into dihedral angles and a good agreement is found, allowing for a determination of the phi angle with a certain range of degrees.
(5) A combination of two procedures was used to search the conformational space for fentanyl, which included nested dihedral scans, geometry optimization and molecular dynamics simulation at different temperatures.
(6) The results of high resolution 1H and 13C NMR using dimethylsulfoxide and 2H2O as solvents, combined with a new method for determining dihedral angles phi and psi from 13C and 1H spin lattice relaxation times are presented.
(7) A total of 1244 experimental constraints were used, including 1120 distance constraints, 103 dihedral angle constraints and 21 hydrogen bond constraints.
(8) We have developed a method to obtain the dihedral angles for a low-energy structure of a protein, starting with the X-ray structure; it is applied here to examine the degree of flexibility of bovine pancreatic trypsin inhibitor.
(9) Interproton distances were derived from crosspeak volumes in two dimensional Nuclear Overhauser Effect spectra, and dihedral angles were calculated from appropriate coupling constants.
(10) The orientation of the N-phenyl group with respect to the N-acyl moiety is essentially invariant with an approximately 90 degrees dihedral angle.
(11) The solution structures were calculated using 409 distance and 73 dihedral angle restraints.
(12) On the basis of the conformational energy (delta E, difference from the most stable conformational energy), which is calculated as a function of the dihedral angle (theta) between the two phenyl rings, biphenyl congeners can be classified into four groups with different conformations.
(13) A hydrated cobalt ion is found to coordinate to two N7 atoms of adjacent guanines, forcing these two guanines to destack with a large dihedral angle (32 degrees), in the dimer of the tetragonal form.
(14) The dihedral angle between the two benzenoid rings measures 1.4(1) degrees.
(15) The solution structure of insectotoxin 15A (35 residues) from scorpion Buthus eupeus was determined on the basis of 386 interproton distance restraints 12 hydrogen-bonding restraints and 113 dihedral angle restraints derived from 1H NMR experiments.
(16) It is concluded that weak attractive interactions between CH groups and S atoms are capable of stabilizing rotamers with unusually low (about 30 degrees) values of the SS-CC dihedral angle.
(17) beta-Breakers can be located automatically using a consensus approach based on algorithmic secondary structure assignment, solvent accessibility and backbone dihedral angles.
(18) It is shown that the dihedral angle omega of the Man alpha 1-6Man beta linkage exhibits low flexibility with a preference for the omega = 180 degrees conformation when residue D2 is present and high flexibility when this residue is absent.
(19) The majority of paperclips are shown to have tightly clustered sets of main-chain dihedral angles.
(20) Measurements on model compounds have been used to characterise a Karplus-type relationship between 3JCOCH and dihedral angles in sugar.
Slope
Definition:
(v. i.) An oblique direction; a line or direction including from a horizontal line or direction; also, sometimes, an inclination, as of one line or surface to another.
(v. i.) Any ground whose surface forms an angle with the plane of the horizon.
(a.) Sloping.
(adv.) In a sloping manner.
(v. t.) To form with a slope; to give an oblique or slanting direction to; to direct obliquely; to incline; to slant; as, to slope the ground in a garden; to slope a piece of cloth in cutting a garment.
(v. i.) To take an oblique direction; to be at an angle with the plane of the horizon; to incline; as, the ground slopes.
(v. i.) To depart; to disappear suddenly.
Example Sentences:
(1) In this review, we demonstrate that serum creatinine does not provide an adequate estimate of glomerular filtration rate (GFR), and contrary to recent teachings, that the slope of the reciprocal of serum creatinine vs time does not permit an accurate assessment of the rate of progression of renal disease.
(2) Regression curves indicate that although all three types of pulmonary edema can be characterized by slightly different slopes, the differences are statistically insignificant.
(3) With profound blockade, the slope of the edrophonium dose-response relationship was significantly flatter (P less than 0.05) than that of neostigmine.
(4) The slope of the thermal inactivation curve of enterotoxin A in beef bouillon (initial pH 6.2) was found to be approximately 27.8 C (50 F) with three different concentrations of toxin.
(5) The summary statistics examined are (a) the slope of the least-squares regression of the marker, (b) the average of the last r measurements, and (c) the difference between the averages of the last r and the first s measurements.
(6) A patient with mitral stenosis and atrial flutter was found to have a normal diastolic closure rate (E to F slope).
(7) With cortisol and cortisol-21-aldehyde, product inhibition patterns showed only slope effects with steroid product and NAD+, suggesting a "random" mechanism.
(8) A positive correlation was found between the content in the eluted cell fractions of LH and dynorphin-like immunoreactivity with a correlation coefficient and a slope of the regression line close to one.
(9) From the stress-strain curve the following values were selected: strain, stress, and slope at 80 mmHg equivalent pressure (1 mmHg = 133.3 Pa); maximum stress, strain, and slope; and breaking stress, strain, and slope if the sample broke.
(10) When age and smoking habits were controlled for, slope of phase III was significantly related to hospitalization due to respiratory disease in general and chronic obstructive pulmonary disease (COPD), whereas closing volume and closing capacity were marginally related to hospitalization due to respiratory disease in general but not to hospitalization due to COPD.
(11) To evaluate threshold estimates under these conditions, computer simulations of experiments with small numbers of trials were performed by using psychometric functions based on a model of two types of noise: stimulus-related noise (affecting slope) and extraneous noise (affecting upper asymptote).
(12) It is shown that when a constant current is applied such that a stable equilibrium and rhythmic firing are present, the following predictions are inherent in the HH system of equations: (a) Small instantaneous voltage perturbations to the axon given at points along its firing spike result in phase resetting curves (when new phase versus old phase is plotted) with an average slope of 1.
(13) A "peeling" technique was used to estimate the time constants (tau 0 and tau 1) and coefficients (a0 and a1) of the first two exponential terms of the series of exponential terms whose sum represented the slope of the voltage response.
(14) No significant correlation was found between the pulmonary valve e-f slope and the pulmonary artery pressures.
(15) We should be grateful the School Food Trust has established this now, before we end up falling down a slippery slope back towards the dreaded Turkey Twizzler that Jamie Oliver campaigned to banish," he added.
(16) With grievous amazement, never self-pitying but sometimes bordering on a sort of numbed wonderment, Levi records the day-to-day personal and social history of the camp, noting not only the fine gradations of his own descent, but the capacity of some prisoners to cut a deal and strike a bargain, while others, destined by their age or character for the gas ovens, follow "the slope down to the bottom, like streams that run down to the sea".
(17) The slope of Phase III in both N2 and He washouts was influenced in an inconstant fashion, probably reflecting differing contributions from topographic and intraregional inhomogeneities of ventilation in these subjects.
(18) The slope of this line was substantially steeper than the regression line slope for treadmill running.4.
(19) Pulmonary mean filling pressure increased and the slope-gradient of pulmonary VR-curve decreased, indicating an increased resistance to venous return from the pulmonary circulation.
(20) It is suggested that the measurement of functional residual capacity, closing volume, and the slope of the alveolar plateau (phase III in the single breath nitrogen washout technique) might give more valuable information.