(1) The data collection scheme for the scanner uses multiple rotations of a linearly shifted, asymmetric fan beam permitting user-defined variable resolution.
(2) Subjects with high ocular-dominance scores (right- or left-dominant subjects) showed for the green stimulus asymmetric behavior, while subjects with low ocular-dominance scores showed a tendency toward symmetry in perception.
(3) The Soret MCD of the reduced protein is interpreted as th sum of two MCD curves: an intense, asymmetric MCD band very similar to that exhibited by deoxymyoglobin which we assign to paramagnetic high spin cytochrome a3(2+) and a weaker, more symmetric MCD contribution, which is attributed to diamagnetic low spin cytochrome a2+.
(4) Bidirectional selection in the E strain was unsuccessful, but an asymmetrical response to selection was obtained in the N strain and in lines derived from crosses between the N and the E strains.
(5) The diagnosis was considered established, when the patient had a significant left intraventricular pressure gradient (LIPG) and by angiographic and or echocardiographic demonstration of systolic anterior movement of the mitral valve and asymmetric septal hypertrophy.
(6) Several short-chain asymmetric lecithins with a total of 14 carbons in the acyl chains (ranging from 1-lauroyl-2-acetylphosphatidylcholine to 1-hexanoyl-2-octanoylphosphatidylcholine) have been synthesized and characterized.
(7) As part of the analysis the positions of 84 solvent molecules in the asymmetric unit were established.
(8) The formation of cavity is followed by asymmetrical segment demyelination and reparative hyperplasia of the astroglial cells and gliosis of the cavity walls.
(9) Asymmetrical gait pattern with mild gait disturbance was found more often in infants lying in supine than in prone.
(10) In the rotatory and transverse gallop (examples of the in-phase form of locomotion) the coupling is asymmetrical: on one side it is comparable to pacing (forelimb flexion precedes hindlimb extension), and on the other side to trotting (forelimb flexion follows extension).
(11) The highly asymmetrical shock wave is produced in the focal region by providing an appropriate time delay to each of the high voltage electrical excitation signals which drive the transducers.
(12) It sediments at 15 S in sucrose density gradients indicating a molecular weight of 380,000, but apparently is very asymmetric.
(13) At the former site the membrane overlying the bud showed an electron opaque thickening which imparted to the mature particle an asymmetrical appearance.
(14) The two molecules in the asymmetric unit form a dimer with its 2-fold axis perpendicular to and intersecting with a crystallographic 4(1) axis.
(15) Thus, the 2 sides of the CVP meridian have different morphogenetic properties and such differences are determinative in the asymmetrical fine-positioning of the CVP.
(16) In 14 patients with asymmetrical baseline VERs, hypercapnia caused improvement of symmetry in five, worsening in three, and no change in six.
(17) Temperature decline through the region of 10 degrees C caused a number of spermatozoa in buffer to undergo a sudden asymmetric bending of the flagellum in the region of the midpiece.
(18) The result discloses an asymmetrical cross-section of pneumococcal cell walls because capsular polysaccharides are located on the outer surface of the walls only, in contrast to the cell wall polysaccharide, which has been shown to be located on both surfaces.
(19) The analysis of these profiles showed that the reaction center protein incorporates into the phosphatidylcholine membrane with unique sidedness and that the profile of the reaction center protein itself is asymmetric and spans the membrane.
(20) The calorimetric data can be simply explained in terms of an asymmetric distribution of the major ROS disk membrane phospholipids (G.P.
Unsymmetrical
Definition:
(a.) Wanting in symmetry, or due proportion pf parts.
(a.) Not symmetrical; being without symmetry, as the parts of a flower when similar parts are of different size and shape, or when the parts of successive circles differ in number. See Symmetry.
(a.) Being without symmetry of chemical structure or relation; as, an unsymmetrical carbon atom.
Example Sentences:
(1) In the scope of our research about the antimicrobial activity of aldehyde-amin-condensates a number of partly new unsymmetrically substituted animals was synthesized by reaction of formaldehyde with different secondary amines.
(2) The thiocarboxyl group reacts with diaryl disulfides to give an unsymmetrical acyl disulfide in dimethylformamide (DMF) and a symmetrical diacyl disulfide in aqueous DMF.
(3) Embryotoxicity has been demonstrated at very high exposures but not at occupationally encountered levels for hydrazine and unsymmetrical dimethylhydrazine.
(4) In an extension of promising inhibitory results in vitro against Histoplasma capsulatum, correlated earlier using substituent constants developed by regression analysis with 77 disulfides, one symmetrical and 14 unsymmetrical disulfides were prepared (3--17).
(5) These five-coordinate heme proteins afford a relatively weak and unsymmetric signal in the Soret region of the MCD spectrum.
(6) The alpha band was unsymmetrical and showed a main peak at 558 nm with a shoulder at around 556 nm.
(7) 1,1-Dimethylhydrazine or unsymmetrical dimethylhydrazine (UDMH) is a highly volatile and reactive compound used primarily as a liquid rocket propellant.
(8) It may be shown, that unsymmetrically substituted animals have both germistatic activity mainly versus Staphylococcus aureus and Bacillus subtilis and germicidal activity especially versus Pseudomonas aeruginosa, Proteus vulgaris, Trichophyton mentagrophytes and Micosporum gypseum.
(9) There are two symmetry nonequivalent molecules in the unit cell, each of which has an unsymmetrical configuration with an unsymmetrical O-H...O = C intramolecular hydrogen bond.
(10) The synthesis of unsymmetrically substituted 1,4-bis[(aminoalkyl)amino]anthracene-9,10-diones bearing one "mitoxantrone side arm" and another (aminoalkyl)amino moiety has been described.
(11) In a modified Ames test system the unsymmetrically substituted chlorinated ethylenes are found mutagenic (tri-,1,1-dichloroethylene and vinyl chloride), whereas symmetrically substituted molecules are inactive.
(12) In at least two instances (the Ar H and the Ar 5-OCH3, 1 and 4) the unsymmetrical nitrogen substitution led to a substantial increase in potency as well as oral activity when compared to the symmetrical dimethyl homologues.
(13) Reduction with tributylphosphine in aqueous organic media generates the free thiol function for a selective conjugation of these immunomodulants with target molecules via unsymmetrical disulfide bridging with a second thiol group by the sulfenohydrazide procedure or via thio-ether linkage by the addition to maleimido--or aziridine-derivatives.
(14) A fluorogenic substrate with an unsymmetrical carbonyl for the sensitive assay of mammalian carbonyl reductase activities, 4-(6-methoxy-2-benzoxazolyl)acetophenone (I), has been prepared.
(15) A series of symmetrically and unsymmetrically N,N'-diaryl-substituted amidinomethyl diethyldithiocarbamates and corresponding amides have been synthesized and tested for potential radioprotective activity.
(16) The former are considered to be three-dimensionally unsymmetrical and curved, and the latter symmetrical and straight.
(17) Both symmetrical reagents (disulfiram, 2,2'- and 4,4'-dithiodipyridines) and unsymmetrical reagents (methyl diethylthiocarbamyl disulphide, methyl 2- and 4-pyridyl disulphides) were investigated.
(18) It is observed that the molecule adopts a novel unsymmetrical loop structure in this section which is characterised by sugar geometries which are significantly different compared to the rest of the molecular.
(19) The relative activity profile for unsymmetrical esters (5-15), which indicated the effect of cycloalkyl ring size on activity, was cyclopentyl > cyclohexyl > cyclobutyl.
(20) Although an increased production of aldehydes was observed with the induced microsomes compared with the non-induced microsomes, no marked differences were noted between the two alkyl groups of these unsymmetric nitrosodialkylamines in regard to the extent of alpha-hydroxylation with the exception of N-nitroso-N-methylbutylamine (NMBA).