(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).
Tobacco
Definition:
(n.) An American plant (Nicotiana Tabacum) of the Nightshade family, much used for smoking and chewing, and as snuff. As a medicine, it is narcotic, emetic, and cathartic. Tobacco has a strong, peculiar smell, and an acrid taste.
(n.) The leaves of the plant prepared for smoking, chewing, etc., by being dried, cured, and manufactured in various ways.
Example Sentences:
(1) The models are applied to estimate the demand for tobacco products in Finland.
(2) There was however no difference in the cross-sectional studies and no significant deleterious effect detected of tobacco use on forearm bone mineral content.
(3) They have actively intervened with governments, and particularly so in Africa.” José Luis Castro, president and chief executive officer of Vital Strategies, an organisation that promotes public health in developing countries, said: “The danger of tobacco is not an old story; it is the present.
(4) How big tobacco lost its final fight for hearts, lungs and minds Read more Shares in Imperial closed down 1% and British American Tobacco lost 0.75%, both underperforming the FTSE100’s 0.3% decline.
(5) The history of tobacco production and marketing is sketched, and the literature on chronic diseases related to smoking is summarized for the Pacific region.
(6) The mechanism by which such high levels were attained was primrily a combination of arterial hypoxia and a high carbon monoxide yield from tobacco.
(7) This structure could be constructed in intron 1 of tobacco rps12 gene.
(8) An important stratification factor, however, was related to tobacco usage.
(9) Chadwick felt that Customs and Trading Standards needed to continue their war on illegal tobacco – if not, efforts to tackle smoking could be undermined.
(10) These regions are also conserved in chloroplast DNA of tobacco.
(11) The policy was effective in reducing perceived environmental tobacco smoke exposure in work areas where smoking was banned but not in nonwork areas where smoking was allowed in designated areas.
(12) The group of tobacco smoking persons showed during rest, loads and in the restorative period more distinct disorders of cardio-vascular system values.
(13) Future increasing segments of females addicted to tobacco smoking will obviously markedly influence sex difference in morbidity.
(14) The Macassans traded iron, tobacco, cloth and gin for access to Yolngu waters.
(15) The present article reports a study of how such lifestyle habits, notably alcohol and tobacco consumption, are addressed in medical consultations.
(16) Cigarette smokers did not differ significantly from users of smokeless tobacco regarding hypercholesterolemia.
(17) However, most of these studies are difficult to interpret because they do not correctly take into account associated carcinogens such as tobacco smoke and other occupational carcinogens.
(18) The acute effects of smokeless tobacco (ST) on buccal mucosal transport and barrier function were studied by means of in vivo and in vitro techniques.
(19) The predilection of localization of epidermoid and small cell carcinomas in the upper lobes suggests a possible relationship to tobacco smoke inhalation as these regions have been shown to be more affected by the smoke.
(20) We have isolated an auxin-regulated cDNA, parB, from the early stage of cultured tobacco mesophyll protoplasts.