(a.) Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air.
Example Sentences:
(1) Placement of impervious knitted Dacron velour aortic grafts in baboons reproduced platelet consumption that progressively normalized over six weeks postoperatively.
(2) Below-zero temperatures crowned the top of the US from Idaho to Minnesota, where many roads still had an inch-thick plate of ice, polished smooth by traffic and impervious to ice-melting chemicals.
(3) There is all sorts of opacity which makes it easy for an employee to suffer retaliation.” Despite recent reforms to improve transparency and accountability, the organisation remains impervious to public scrutiny, with no established mechanism for freedom of information – a right which more than 100 governments around the world have enshrined in law, and is openly advocated by UN bodies such as Unesco.
(4) Persons suffering from major narcissistic problems generally are assumed to be impervious to time-limited treatments.
(5) Or you can do it at the desk with your smartphone if you can remember the website address, don’t mind the data roaming charges, can remember your national insurance number and are impervious to the long queue developing behind you”.
(6) On the other hand, the performance of a material that is liquid-proof is absolute--it is impenetrable and can be accurately described as impervious.
(7) A mathematical solution has been obtained for the indentation creep and stress-relaxation behavior of articular cartilage where the tissue is modeled as a layer of linear KLM biphasic material of thickness h bonded to an impervious, rigid bony substrate.
(8) This is the essence of the problem, and sadly, Festinger's words ring true today: the conviction of humans is all too often impervious to the very evidence in front of them.
(9) The amplitude of quantal events is impervious to marked changes in presynaptic depolarization and is not affected by experimental procedures which promote accumulation of calcium ions in the terminals.
(10) Many such cases prove impervious to extensive articulation therapy, yet physical management may constitute "over-correction" with undesirable sequelae.
(11) Purified thymidylate synthetase can be assayed radiochemically using labelled deoxyuridine monophosphate as substrate, but cells are impervious to deoxyuridine monophosphate and so intracellular thymidylate synthetase activity cannot be assayed in this way.
(12) Heseltine's achievements have been matched by conspicuous failures, but his self belief is almost thrillingly impregnable, making him quite impervious to any such impression.
(13) It is rife with secrecy, top-down managerial manipulation, impervious to any outside scrutiny, contemptuous of any questioning, and has embraced extensive surveillance and discriminatory policing of religious and racial minorities.
(14) These actions of YM14673 were not due to a direct interference with brain TRH binding or a nature impervious to a TRH-degrading enzyme.
(15) The numerous tight junctions, impervious to the tracer, are always accompanied by a profusion of microfilaments.
(16) A newborn baby with a large unruptured omphalocele was successfully treated by covering the sac with a skin-like polymer membrane that is flexible, elastic, and impervious to bacteria and water.
(17) Bateman's unspeakable imaginings are the disease of an imperviously complacent world.
(18) In these measurements with an impervious, plane-ended indenter, the equilibrium deformation was systematically greater than values predicted from the instant response by the linear biphasic theory.
(19) "He appears impervious even to input from top Afghans."
(20) A tractor owned by a member of Greece’s far-right Golden Dawn is parked outside of a shelter and a dozen young men from Afghanistan rest against its wheels, grateful for the shade and impervious to the protest.
Pervious
Definition:
(a.) Admitting passage; capable of being penetrated by another body or substance; permeable; as, a pervious soil.
(a.) Capable of being penetrated, or seen through, by physical or mental vision.
(a.) Capable of penetrating or pervading.
(a.) Open; -- used synonymously with perforate, as applied to the nostrils or birds.
Example Sentences:
(1) In this latter group two of 29 (7%) had ECG evidence of infarction while four of 28 (14%) had positive scintigrams, compared to the pervious incidence of 31%.
(2) Three antigens designated B1, B2, and B3 (perviously B, C, and D) were detected in our outbred colony and also found to be present in a wide variety of guinea pig strains.
(3) Isopycnic sucrose density (discontinuous) gradient centrifugation of vesicles from adrenal glands of control cats, and of cats given reserpine 1 or 2 days perviously, indicated that new vesicles or vesicles depleted of CA by reserpine had a lower equilibrium density than the original population of vesicles.
(4) Considering the type, localization and perviousness of the lesion, similar conclusions were drawn, and did not affect the results, except that there were more false-negatives in both exams when the lesions were impervious.
(5) The purpose was to quantitate and characterize uterine activity in a group of multiparous patients with normal labor using our present on-line method and to evaluate our method against pervious work done on uterine activity.
(6) The contractility indices (VCF: mean speed, and VCF max: maximum shortening speed of the equatorial diameter of the left ventricle (% delta theta) were unmodified in the group (I) of fourteen patients with at least one pervious by-pass.
(7) Conditioning under a steam-proof and gas pervious (O2-CO2) film.
(8) A case of pheochromocytoma of the urinary bladder is reported, and 35 perviously reported cases are analyzed.
(9) Using epithelial monolayers of HCA-7 cells, derived from a primary human colonic adenocarcinoma and grown on pervious supports, it is shown that responses to lysylbradykinin can be elicited from either side.
(10) Oral apparatuses also purified by a modification of a pervious method.
(11) The sudden withdrawal of LSD produced a fall in avoidance rate, which was dependent on the pervious training dosage; as with delta 9-THC state-dependent learning can also be assumed for LSD.
(12) Comparison of the serum time-concentration curves to pervious analgesic and toxicity trials was made, and minimum serum levels for induction of analgesia and production of side effects are discussed.
(13) The percent yield of purified hyaluronidase calculated on the basis of total activity was ten times higher than by any pervious method [Yang, C.H.
(14) Clinical manifestations, including recurrent urinary tract infection and cuff abscess, followed vaginal hysterectomy performed three years perviously.
(15) The new policy amounts to an effective U-turn on pervious, ground-breaking legislation passed by Gerhard Schröder's Social Democrat and Green government, which would have seen nuclear power phased out in just over a decade's time.
(16) Spontaneously occurring surface wrinkling retinopathy occurreed in 17 eyes of 16 patients and was not related to pervious surgery, retinal vascular disease, or obvious ocular inflammation.
(17) Previously it has been thought that such a perviousness of the mucosal barrier would be bidirectional in nature.
(18) We consider this clinical entity to be much more common than perviously reported.
(19) However, although the specificity and intracellular localization of these enzymes in different tissues have been described perviously, there are only a few reports about their localization in the salivary gland, and the functional role of arylsulphatases in the physiological function of the salivary glands.
(20) When compared with pervious data (1) it is suggested that alcohol is differentiated from pentobarbital and diazepam on the basis of their interactional effects with bemegride.