(n.) One of the simplest or essential parts or principles of which anything consists, or upon which the constitution or fundamental powers of anything are based.
(n.) One of the ultimate, undecomposable constituents of any kind of matter. Specifically: (Chem.) A substance which cannot be decomposed into different kinds of matter by any means at present employed; as, the elements of water are oxygen and hydrogen.
(n.) One of the ultimate parts which are variously combined in anything; as, letters are the elements of written language; hence, also, a simple portion of that which is complex, as a shaft, lever, wheel, or any simple part in a machine; one of the essential ingredients of any mixture; a constituent part; as, quartz, feldspar, and mica are the elements of granite.
(n.) One out of several parts combined in a system of aggregation, when each is of the nature of the whole; as, a single cell is an element of the honeycomb.
(n.) One of the smallest natural divisions of the organism, as a blood corpuscle, a muscular fiber.
(n.) One of the simplest essential parts, more commonly called cells, of which animal and vegetable organisms, or their tissues and organs, are composed.
(n.) An infinitesimal part of anything of the same nature as the entire magnitude considered; as, in a solid an element may be the infinitesimal portion between any two planes that are separated an indefinitely small distance. In the calculus, element is sometimes used as synonymous with differential.
(n.) Sometimes a curve, or surface, or volume is considered as described by a moving point, or curve, or surface, the latter being at any instant called an element of the former.
(n.) One of the terms in an algebraic expression.
(n.) One of the necessary data or values upon which a system of calculations depends, or general conclusions are based; as, the elements of a planet's orbit.
(n.) The simplest or fundamental principles of any system in philosophy, science, or art; rudiments; as, the elements of geometry, or of music.
(n.) Any outline or sketch, regarded as containing the fundamental ideas or features of the thing in question; as, the elements of a plan.
(n.) One of the simple substances, as supposed by the ancient philosophers; one of the imaginary principles of matter.
(n.) The four elements were, air, earth, water, and fire
(n.) the conditions and movements of the air.
(n.) The elements of the alchemists were salt, sulphur, and mercury.
(n.) The whole material composing the world.
(n.) The bread and wine used in the eucharist or Lord's supper.
(v. t.) To compound of elements or first principles.
(v. t.) To constitute; to make up with elements.
Example Sentences:
(1) Elements in the skin therefore seemed to enhance nerve regeneration and function.
(2) It has been generally believed that the ligand-binding of steroid hormone receptors triggers an allosteric change in receptor structure, manifested by an increased affinity of the receptor for DNA in vitro and nuclear target elements in vivo, as monitored by nuclear translocation.
(3) Four other independent LCMV-GP2(275-289) specific H-2Db-restricted CTL clones also expressed V alpha 4 and V beta 10 gene elements.
(4) Community involvement is a key element of the Primary Health Care (PHC) approach, and thus an essential topic on a course for managers of Primary Health Care programmes.
(5) Thus, human bronchial epithelial cells can express the IL-8 gene, with expression in response to the inflammatory mediator TNF regulated mainly at the transcriptional level, and with elements within the 5'-flanking region of the gene that are directly or indirectly modulated by the TNF signal.
(6) According to the finite element analysis, the design bases of fixed restorations applied in the teeth accompanied with the absorption of the alveolar bone were preferred.
(7) To determine the influence of cetylpyridinium chloride (CPC) adsorption on the wettability and elemental surface composition of human enamel, with and without adsorbed salivary constituents, surface-free energies and elemental compositions were determined.
(8) Second, the unknown is searched against the database to find all materials with the same or similar element types; the results are kept in set 2.
(9) It is concluded that selection against insertional mutations is unlikely to be the major factor involved in the containment of element abundance.
(10) We have investigated interactions between the erythroid transcription factor GATA-1 and factors binding two cis-acting elements commonly linked to GATA sites in erythroid control elements.
(11) Further, Tyr 20 is an important element of that sequence.
(12) It is possible that the elements provide common precursor proteins that reach the secretory intermediate lobe cells through their dendritic branches.
(13) Other than failing to get a goal, I couldn’t ask for anything more.” From Lambert’s perspective there was an element of misfortune about the first and third goals, with Willian benefitting from handy ricochets on both occasions.
(14) These data indicate that the sfrB gene product is a regulatory element, since the single gene product elicits the expression of genes for many products for F expression and lipopolysaccharide synthesis.
(15) Therefore, a hormonal regulatory element can discriminate among closely related transcription start sites.
(16) The safe motherhood initiative demands an intersectoral, collaborative approach to gynecology, family planning, and child health in which midwifery is the key element.
(17) The 500-bp element arose by duplication of one half of a 180-bp ancestor and insertion of a foreign segment between the two duplicated parts followed by amplification.
(18) Neither light nor electron microscopy revealed significant morphologic alterations in the cochlear elements of the exposed offspring.
(19) The hypothesis that the standard acoustic startle habituation paradigm contains the elements of Pavlovian fear conditioning was tested.
(20) Autopsy revealed a primary intimal sarcoma with osteogenic elements arising in the posterior leaflet of the pulmonary valve and obstructing the main pulmonary artery and its right branch.
Motif
Definition:
(n.) Motive.
Example Sentences:
(1) This receptor and a growing family of related cytokine receptors share homologous extracellular features, including a well-conserved WSXWS motif.
(2) We have generated a series of mutants in the two copies of this motif present in human immunodeficiency virus type 1.
(3) An additional 14 leader peptides in this collection (all of those that contain an arginine at -10) conform to this motif.
(4) In addition, region III has some structural features similar to a conserved motif found in complement receptor 1, the human C3b receptor.
(5) A new alternative splice site was incidently found 81 nucleotide downstream of motif II in both normal and truncated 4.1 mRNA.
(6) The same RNA-protein motif is used, through iron-dependent degradation of transferrin receptor mRNA, to decrease synthesis of the receptor and cellular iron uptake.
(7) Comparison of the human and mouse repeats revealed a highly conserved Glu-Asp core in each unit, implicating the functional significance of this motif.
(8) The three-dimensional solution structure of a zinc finger nucleic acid binding motif has been determined by nuclear magnetic resonance (NMR) spectroscopy.
(9) Sequence comparison programs suggested the presence of domains related to the RNA recognition motif found in other RNA-binding proteins, and deletion analysis revealed that the carboxyl-terminal 195 amino acids of the recombinant PTB was sufficient for specific binding to pre-mRNAs.
(10) Since similar loop conformations form similar "words", the structural sequence facilitates the search for common structural motifs in a family of loops.
(11) A new repetitive DNA region was identified in the non-transcribed spacer of human rDNA, namely a long (4.6 kb) sequence motif (Xbal element) was present in two copies.
(12) X-ray analysis of these crystals will permit direct visualization of the specific structural motifs and chemical features that underlie phospholipase neurotoxicity.
(13) Information about the three-dimensional structure or function of a newly determined protein sequence can be obtained if the protein is found to contain a characterized motif or pattern of residues.
(14) For PPD-specific TCCs, a possible biased usage of V beta 8, as well as possible preferential usage of a CDR3 motif, were found.
(15) This phenomenon was observed by using wheat-germ RNA polymerase II and a series of double-stranded template polymers containing palindromic repeating motifs of 6-16 bp, with regulatory alternating purine and pyrimidine bases such as d[ATA(CG)nC].d[TAT(GC)nG], with n = 1, 3 or 6 referred to as d(GC), d(GC)3 or d(GC)6, respectively.
(16) A sequence between residues 302 and 320 homologous to a metal-binding "finger" motif is therefore not required for origin-specific binding.
(17) In this report, we examined the functional significance of these six motifs for the UL9 protein through the introduction of site-specific mutations resulting in single amino acid substitutions of the most highly conserved residues within each motif.
(18) These sequences have a number of similar motifs at, or immediately following, the end of the coding regions, motifs that may be involved in their S mRNA transcription termination processes.
(19) The TV campaign, created by ad agency Leo Burnett, uses imagery and motifs more closely associated with Christmas than summer.
(20) Interestingly, the helical motif prefers to assemble parallel to the wall, whereas the beta-barrel, predominantly assembles with its principal axis perpendicular to the wall.