(n.) A thick, black, viscous liquid obtained by the distillation of wood, coal, etc., and having a varied composition according to the temperature and material employed in obtaining it.
(v. t.) To smear with tar, or as with tar; as, to tar ropes; to tar cloth.
Example Sentences:
(1) With the exception of PMMA and PTFE, all plastics leave a very heavy tar- and soot deposit after burning.
(2) Utilizing the bilateral comparison technique in 30 hospitalized patients with chronic stable plaque-type psoriasis vulgaris, we closely monitored the clinical responses to ultraviolet radiation (Westinghouse fluorescent FS40 bulbs, 290--400 nm) and a variety of tar preparations and lubricant vehicles in combination and separately.
(3) It seems that the addition of liquid tar elevates the reaction threshold to dithranol in hypersensitive patients with psoriasis.
(4) We now present evidence that such a decrease in amounts of P68 could be essential for HIV-1 replication because of the presence of the Tat-responsive sequence (TAR sequence) present in the 5' untranslated region of HIV-1 mRNAs, which activates the P68 kinase.
(5) We conclude that there appears to be no benefit from exceeding a concentration of 5% crude coal tar in yellow soft paraffin in the treatment of patients with psoriasis and that the plateau in the dose-response curve for the action of crude coal tar in psoriasis begins at a point between 1 and 5%.
(6) Purified tat binds specifically to HIV-1 trans-activation-responsive region (TAR) RNA in gel-retardation, filter-binding, and immunoprecipitation assays.
(7) benj67 asks: How do you continue to justify continued your role in financing the Canadian tar sands, arguably a greater crime than the Libor scandal?
(8) Hansen has been an outspoken critic of tar sands, saying last year "it will be game over for the climate if development of the oil sands isn't stopped".
(9) In contrast, erythroid and myeloid colony growth from the TAR infant's marrow cells was preserved.
(10) Finally, by 6 min of heavy exercise at 8 mph 20% grade, Tar increased 2 degrees C (P less than 0.05) while Tre increased 0.5 degree C (P less than 0.05).
(11) Hydroxylamine mutagenesis was used to alter the tar gene that encodes the transmembrane Tar protein required for chemotaxis.
(12) A previously described smoking apparatus (20) was used for measurement of puff volume and inhaled tar.
(13) Again, tat protected TAR RNA from RNase A cleavage at both U23 and U31.
(14) Since its 2013 announcement, a key aim of TTIP has been to destroy regulations that prevent high-polluting tar sand crude oil from entering Europe.
(15) TARS-1 and TART-1 but not TARL-2 were transplantable into newborn syngeneic rats and nude mice.
(16) Both the occupational and in particular the therapeutic exposure to coal tar resulted in clear increases in urinary levels of PAH metabolites as compared to unexposed subjects.
(17) During the remission period the patients were advised to use a tar preparation or topical corticosteroids in the event of minor exacerbations.
(18) Biological studies have demonstrated that concentrated extract of tars from combustion of shale oil are carcingenic to the skin of mice.
(19) Beech tar, in a concentration of 5% induced a 19% increase in orthokeratosis.
(20) For the study reported in the present investigation these data have been augmented by estimates of past workplace exposure to total tar (benzene-soluble matter) and to benzo-a-pyrene (BaP).
Tau
Definition:
(n.) The common American toadfish; -- so called from a marking resembling the Greek letter tau (/).
Example Sentences:
(1) For each temporal position of the independent noise, discriminability was a function of the ratio of the duration of the independent noise (tau) to the total burst duration.
(2) The 'intermediate' (tau 1) and 'slow' (tau 2) components were seen by curve fitting M-current deactivation currents.
(3) Tau protein can be transformed into an Alzheimer-like state by phosphorylation with a kinase activity from brain [Biernat et al.
(4) 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.
(5) The antibody to tau-labeled microtubules from normal human brains assembled in vitro but identically treated Alzheimer brain preparations had to be dephosphorylated to be completely recognized by this antibody.
(6) However, prepubertal heifers exposed to long-day photoperiods had reduced (P less than .01) urinary N tau-methylhistidine excretion compared with heifers given short-day photoperiods.
(7) In this study we confirmed this finding in two cases of PSP by using Bodian silver staining and immunohistochemistry with antibody to human tau protein.
(8) These data suggest that the induction of tau and MAP1 in response to NGF promotes microtubule assembly and that these factors are therefore key regulators of neurite outgrowth.
(9) (4) R(XY)(t,tau) is a biased estimator of the shape of h(t), generally over-estimating both its time to peak and its rise time.
(10) The monoexponential pattern of restitution was seen with model-independent descriptors of relaxation as well as with tau.
(11) The R. temporaria embryos at stages from insemination to the 1st cleavage division were incubated for 1 tau 0 in different saline solutions.
(12) Another parameter, the time constant of augmentation (tau a), was not significantly changed by muscle stretching.
(13) The mean channel open time (tau) estimated from the half-power frequency was 2 msec at 37 degrees C and -90 mV holding potential.
(14) The time constant of the increase of force during the stretch decreased (tau rise congruent to 7 ms to tau rise congruent to 4 ms) with increases in v (congruent to 4 microns s-1 to v congruent to 10 microns s-1; P = 0.02).
(15) The observed north-south differences in the phase relation of both pacemaker and rhythm to the light cycle are explained by the latitudinal clines in pacemaker properties and a postulated aftereffect of photoperiod on tau.
(16) In the presence of 4-AP the difference between the decay time constant of EPC (tau epc) and MEPC (tau mepc) became much more pronounced.
(17) The anti-ptau 1- and anti-ptau 2-recognition sites were immunochemically localized to the fragment Asp313 to Ile328 in the most COOH-terminal portion of tau.
(18) Immunocytochemical studies to clarify these argyrophilic structures in the OPCA subjects employed paired helical filament (PHF), microtubule associated proteins (MAPs), MAP1, MAP2, MAP5, tau, ubiquitin, neurofilament (200 or 70 kilodaltons) and myelin basic protein (MBP) antisera.
(19) TAU approach showed a significant inferiority (p less than 0.02) and TVU a significant superiority (p less than 0.08) in comparison to palpation.
(20) They also bind to high-molecular-weight microtubule-associated proteins (MAPs) and tau.