(a.) A large pile of hay, grain, straw, or the like, usually of a nearly conical form, but sometimes rectangular or oblong, contracted at the top to a point or ridge, and sometimes covered with thatch.
(a.) A pile of poles or wood, indefinite in quantity.
(a.) A pile of wood containing 108 cubic feet.
(a.) A number of flues embodied in one structure, rising above the roof. Hence:
(a.) Any single insulated and prominent structure, or upright pipe, which affords a conduit for smoke; as, the brick smokestack of a factory; the smokestack of a steam vessel.
(a.) A section of memory in a computer used for temporary storage of data, in which the last datum stored is the first retrieved.
(a.) A data structure within random-access memory used to simulate a hardware stack; as, a push-down stack.
(n.) To lay in a conical or other pile; to make into a large pile; as, to stack hay, cornstalks, or grain; to stack or place wood.
Example Sentences:
(1) Thin films (OD approximately 0.7) of glucose-embedded membranes, prepared as a control, showed virtually 100% conversion to the M state, and stacks of such thin film specimens gave very similar x-ray diffraction patterns in the bR568 and the M412 state in most experiments.
(2) The planar 7H-pyridocarbazole cations form stacks approximately parallel to b. Interactions between stacks occur by weak van der Waals forces.
(3) How does it stack up against the competition – and are there any nasties in the small print?
(4) Rayburn, who was also told by his jobcentre he would lose his benefits if he did not work without pay, said he spent almost two months stacking and cleaning shelves and sometimes doing night shifts.
(5) Carcinogen-modified oligodeoxynucleotides were single-stranded, but there were often considerable stacking interactions between the pyrenyl residues and the oligonucleotide bases, indicating that electrophoresed oligomers were single-stranded but in a native, versus random coil, conformation.
(6) Intermolecular contacts occur in both oligomers in the minor groove: in the B form through twisted guanine-guanine hydrogen bonding, and in the Z form through base-base stacking and the water network.
(7) If we were to have a plebiscite before the end of the year, and you were to reverse-engineer that, it would make interesting speculation about the timing of an election.” Abetz said in January he would need to see whether a plebiscite was “above board or whether the question is stacked” before deciding to heed any result in favour of marriage equality.
(8) Using polyclonal and monoclonal antibodies we show in normal cells precursor forms of beta-gal in the rough endoplasmic reticulum (RER) and in the Golgi apparatus throughout the stack of cisternae.
(9) The AFB1 moiety is face-stacked in the major groove with its long axis approximately perpendicular to the helix axis.
(10) Between February and July of 1989, 22 patients underwent the use of the Stack autoperfusion catheter following acute occlusion or obstructive dissection during coronary angioplasty; in 20 cases conventional balloon was used in an attempt to correct the angiographic appearance followed by the use of Stack catheter when results were sub-optimal.
(11) The breaking up of the microtubular cytoskeleton is followed by vesiculation of the rough endoplasmic reticulum and partial atrophy, as well as dispersion of the stacks of Golgi cisternae.
(12) She walks past stack after stack of books kept behind metal cages, the shelves barely visible in the dim light from the frosted-glass windows.
(13) The notochord, which is composed of a stack of flat cells surrounded by a connective tissue sheath, elongates dramatically and begins straightening between stages 21 and 25.
(14) However, AGC and AC in their hydrogenated form also caused aggregation and stacking of the stratum corneum lipid liposomes.
(15) Their lineup proved to be stacked, with breakouts from AL home run leader Chris Davis and doubles machine Manny Machado, who powered the O's through starting-pitching issues to hang in a tight division.
(16) Electron energy-loss spectroscopic element-distribution images are acquired from cytochemical reaction products in a variety of cellular objects: (1) colloidal thorium particles in extra-cellular coat material, (2) iron-containing ferritin particles in liver parenchymal cells, (3) barium-containing reaction products in endoplasmic reticulum stacks, (4) elements present in lysosomal cerium- and barium-containing precipitates connected with acid phosphatase (AcPase) or aryl sulphatase (AS) enzyme activity.
(17) We also observed slender tubules connecting Golgi stacks to neighbouring rough endoplasmic reticulum.
(18) I always get brown meat on the chicken, and when I do finally remember to stack the dishwasher, do I get any credit?
(19) (C13-A14-C15) segment at pH 8.9 establishes that X5 and A14 are directed into the helix, partially stack on each other, and are not stabilized by intermolecular hydrogen bonds.
(20) Multiple jobseekers can work in one store at the same time, cleaning or stacking shelves and competing against each other for a potential offer of paid work.
Unstack
Definition:
(v. t.) To remove, or take away, from a stack; to remove, as something constituting a stack.
Example Sentences:
(1) The observed inhibition of cation-induced spillover change was presumably due to loss of ability of these photosynthetic membranes to undergo unstacking in low-salt medium.
(2) Under catalysis-limited conditions, the imino proton exchange rates are predicted from the catalytic rate constants, prevailing buffer catalyst concentrations, and the equilibrium constants to form the unstacked open state of optical melting theory.
(3) Apparently the ribose-phosphate chain provides an essential contribution to the stiffness of oligomers and polymers, even when the bases are unstacked.
(4) Circular dichroism technique also shows that the interaction of p10 with RNA involves an unstacking of the nucleotide bases and an unfolding of the RNA secondary structure.
(5) The enthalpy change accompanying this pH-induced unstacking is +2.65 kcal (mole of A-A stack)-1 as measured by batch calorimetry.
(6) However, a comparison with the average length of stacked residues evaluated from available thermodynamic parameters of base stacking indicate that unstacked residues are not completely flexible.
(7) In control experiments, isolated, intact Golgi stacks were stable at 4 degrees C and 20 degrees C for > or = 1 h; however, some unstacking occurred at 32 degrees C. Treatment of intact Golgi stacks with a variety of proteolytic enzymes resulted in a time- and dose-dependent unstacking of the cisternae, although stacks were resistant to various other proteases.
(8) Binding causes relatively small chemical shift changes for the base resonances in adenylyl nucleotides, suggesting that there is some, but not complete, unstacking of the bases.
(9) A third step, which is very temperature dependent and which is very rapid at 37 degrees C, was postulated to involve the unstacking of DNA base pairs that immediately precedes open complex formation.
(10) Moreover, comparison between photosystem 1 and photosystem 2 electron transport and the effects of membrane unstacking suggest that low gramicidin D preferentially inhibits photosystem 2, while palmitic acid inhibits more effectively photosystem 1 coupling sites.
(11) Although the individual nucleosides are like those of B-DNA, their unstacked conformation, which is inappropriate for base pairing, as well as the conformational angles alpha and gamma of dA and zeta of dT, rule out B-DNA.
(12) The linkage also limits the number of cyclic hydrogen bonding configurations, and a model is proposed to describe a fraction of unstacked FAD in aqueous solution.A parallel study was made of NAD(+) and its analogues; in contrast to FAD, no clear evidence of cyclic hydrogen bonding was obtained with the pyridine coenzymes.
(13) Changes in the supramolecular organization of CD3 thylakoids, seen with freeze-fracture electron microscopy, include a reduction in the size of EFs particles, which correspond to photosystem II centers with variable amounts of attached LHCII, and a redistribution of EF particles from the stacked to the unstacked regions.
(14) We show that ELIP is integrated into the membranes via the unstacked stroma thylakoids.
(15) The result is consistent with the data from computer graphics modelling studies [39] which show that DNA-breathing (transient base pair unstacking) has to occur to allow the docking of the 1,5-disubstituted anthraquinone (VII) into the receptor site.
(16) Partition in an aqueous Dextran-polyethylene glycol two-phase system has been used for the separation of chloroplast membrane vesicles obtained by press treatment of a grana-enriched fraction after unstacking in a low salt buffer.
(17) When pea grana thylakoids were unstacked, the high temperature transitions were sharpened and their reversibility was enhanced.
(18) Membrane stacking is also absent in the ac-31 strain, and, when isolated in a low-salt medium, these membranes remain unstacked and exhibit only Bu and Cu faces.
(19) Because only the dye monomer binds to GS, the difference spectrum between dye and dye bound to GS is due in part to GS-promoted shifts in the equilibrium between stacked and unstacked dye molecules.
(20) It is projected that in aqueous solution, conformations of the individual nucleotidyl units of yeast tRNAhe are confined to the classically stable domains in the base stacked region and non-rigid flexible structures populate in the unstacked region comprising D16, D17, G20, U47 and A76.