(n.) In the quaternion analysis, a quantity that has magnitude, but not direction; -- distinguished from a vector, which has both magnitude and direction.
Example Sentences:
(1) Scalar electrocardiograms contain a great deal of vectorial data.
(2) The cumulative radiation effect (CRE) is one of several empirical scalar descriptions of biological effect which enable corrections to be made for gaps in radiotherapy treatment.
(3) Light scatter from epithelial cells in a slit-scan flow system is modeled using the Fraunhofer condition of scalar diffraction theory.
(4) The mechanical response is shown in terms of displacements, principal strains, and a new measure called the 'mechanical intensity scalar'.
(5) The waveform analysis employed by the program considers the vectorcardiogram as a three dimensional entity rather than as scalar or planar representations.
(6) Scalar couplings from correlated experiments and interproton distances from NOESY experiments at short mixing times have been used to determine glycosidic angles, sugar puckers, and other conformational features.
(7) A positive R wave in lead aVR of the scalar ECG and poor R wave progression in the precordial leads were more common in Group A than in Group B (p less than 0.001 and p less than 0.001, respectively).
(8) There was no statistically significant difference between the means of the measured values of the polarcardiogram and of the corresponding polar components calculated from the three scalar ECG concerning all twenty items, namely spatial magnitude, magnitudes in each plane, each longitude and latitude at the time of the spatial maximum QRS and T vectors, except alpha-longitude.
(9) Some commonly used parametric and non-parametric statistical procedures (such as Students t-test, linear regression, Mann-Whitney and Wilcoxon tests) illustrate the use of scalars.
(10) Two-dimensional scalar correlated spectroscopy (COSY), two-dimensional dipolar correlated spectroscopy (NOESY) and two-dimensional relayed coherance transfer spectroscopy (RCT) experiments were recorded, allowing most resonances arising from the aromatic and methyl-containing residues to be assigned in the spectrum.
(11) The patients were followed up serially by means of scalar electrocardiograms and 24 hour Holter monitoring studies.
(12) Since 1979 the quality control design proposed by the Italian ad hoc Committee has evaluated several lyophilized preparations with scalar receptor content; this permits the identification by linear regression analysis of systematic and non systematic errors.
(13) The 1H-1H scalar coupling observed in both the 2H and 1H NMR spectra was used to assign definitively the resonances of labeled species.
(14) In the 32 postinfarction patients the "P-terminal force" was also measured from lead V1 of the scalar electrocardiogram.
(15) This in turn causes the transverse relaxation rate for the 199Hg spin-coupled methyl protons to be fast due to efficient relaxation by another mechanism, scalar relaxation of the second kind.
(16) We report our experience of the use of a scalar type incision associated with a total skin graft in the treatment of recurrences of Dupuytren's contracture.
(17) From this comparison, we conclude that scalar exchange does not make a significant contribution to the spin-lattice relaxation of YD.
(18) A penalty function for scalar coupling constants has been applied in molecular dynamics simulations as an experimental constraint.
(19) The observation of a splitting of the PCr 31P resonance in aqueous solutions containing D2O has been recently ascribed to proton scalar coupling but was described earlier in an underappreciated report [Kupriyanov et al.
(20) Membrane depolarization observed in the presence of ferricyanide reduction by plasma membranes of whole cells or tissues or the lag period between ferricyanide reduction and medium acidification argue that only scalar protons may be involved.
Vector
Definition:
(n.) Same as Radius vector.
(n.) A directed quantity, as a straight line, a force, or a velocity. Vectors are said to be equal when their directions are the same their magnitudes equal. Cf. Scalar.
Example Sentences:
(1) The dependence of fluorescence polarization of stained nerve fibres on the angle between the fibre axis and electrical vector of exciting light (azimuth characteristics) has been considered.
(2) A beta-adrenergic receptor cDNA cloned into a eukaryotic expression vector reliably induces high levels of beta-adrenergic receptor expression in 2-12% of COS cell colonies transfected with this plasmid after experimental conditions are optimized.
(3) We have constructed retroviral vectors derived from the genome of avian erythroblastosis virus ES4 (AEV ES4).
(4) The 6.6-kb DNA Bam HI fragment containing the resistance gene was cloned with the plasmid vector pIJ699.
(5) The plasmid pMucAMucB, constructed from the Haemophilus influenzae vector pDM2, and a similar plasmid, constructed from pBR322, increased the survival after UV irradiation of Escherichia coli AB1157 with the umu-36 mutation and also caused UV-induced mutation in the E. coli strain.
(6) In assessing damaged nets and curtains it must be recognised that anything less than the best vector control may have no appreciable impact on holoendemic malaria.
(7) When an expression vector containing plasminogen cDNA is transfected into baby hamster kidney cells, the number of drug-resistant colonies as well as the levels of plasminogen secreted by those colonies is lower than observed in similar transfections of other protease precursor genes.
(8) The vector is relatively small (6 kilobase pairs) and contains a portion of the L. seymouri alpha-tubulin gene positioned in-frame with a truncated neomycin phosphotransferase gene that confers resistance to the aminoglycoside G418.
(9) The presence of potential insect vectors and the occurrence of clinical signs are indications of active transmissions.
(10) Subcloning of pLR beta 118 into a transcription vector with subsequent in vitro transcription and translation using the reticulocyte lysate system in the presence of microsomes followed by immunoprecipitation with mAb OX6 and two-dimensional gel electrophoresis revealed the intact RT1.B beta I-chain.
(11) It is the most commonly reported vector-borne disease in the United States, where the incidence is highest in the eastern and midwestern states.
(12) The primary focus of the government at this point is vector control,” said Nadal.
(13) Transfer of the shuttle vectors from B. uniformis donors to E. coli occurred at the same frequencies when the matings were done aerobically or anaerobically.
(14) Discovery of this vectorhost-parasite system in the Americas, and the localization of promastigote flagellates (leptomonads) in the hindgut of the vector, should assist in clarifying interpretative problems associated with infection of wild-caught flies in studies on leishmaniasis in the Americas and elsewhere.
(15) ELISA, cDNA dot blot hybridization and transmission by vector aphids were used to investigate the occurrence and degree of cross-protection produced in oat plants by virus isolates representing five strains or serotypes of barley yellow dwarf virus, namely PAV, MAV, SGV, RPV and RMV.
(16) The results suggests that abrin B chain of chimeric protein may act as a vector to carry ACTI into the tumor cells.
(17) The peak biting activity of the vector and peak appearance of microfilariae in the peripheral blood occurred at about 01.00 h, which accounts for the optimum infection of the vector population.
(18) The transposon-containing plasmids were used to localize essential replication functions and to characterize the stability of large inserts in these vectors.
(19) A recombinant gene encoding human growth hormone (hGH) was stably introduced into cultured myoblasts with a retroviral vector.
(20) While it has been possible to readily produce large numbers of such templates from M13 or other single-stranded vectors for several years, the sequencing of double-stranded DNA templates using the ABI 373 DNA Sequencer has had a considerably lower success rate.