(a.) Not effective; ineffectual; futile; inefficient; useless; as, an ineffective appeal.
Example Sentences:
(1) As prolongation of the action potential by TEA facilitates preferentially the hormone release evoked by low (ineffective) frequencies, it is suggested that a frequency-dependent broadening of action potentials which reportedly occurs on neurosecretory neurones may play an important role in the frequency-dependent facilitation of hormone release from the rat neurohypophysis.
(2) However, low dose heparin prophylasix is relatively ineffective in patients having hip surgery, and has not been evaluated in patients having other types of orthopaidic surgery.
(3) This mode of treatment remains appropriate for cases where antibiotics are ineffective and surgery impracticable.
(4) The excitatory effect of L-glutamate on PGCL sympathoexcitatory neurons was blocked by iontophoretic applications of kynurenic acid, whereas identical amounts of 8-OH kynurenic acid were ineffective.
(5) EGTA was ineffective in removing calmodulin from particulate preparations, but treatment with the tervalent metal ion La3+ resulted in a loss of up to 98% of calmodulin activity from these preparations.
(6) The use of UEBP-deficient female rat liver cytosol revealed that the afore-mentioned steroids are ineffective with respect to estrogen reception.
(7) Anti-histamine and anti-serotonin drugs, as well as substances capable of blocking synthesis of prostaglandins or activation of the kinin system, and also atropine, were ineffective in reducing the responses to TsTX or electrical stimuli.
(8) Treatment was ineffective and stopped in 12 cases (24.5%); the inefficacy was primary in 6 and tachyphylactic in the other 6.
(9) The delirium improved when the treatment was restored, whereas neuroleptics proved ineffective.
(10) The CI treatment induced almost full protection against these behavioral effects of saline stress but DS treatment was ineffective.
(11) In addition, it has excellent antibacterial activity against indole-positive Proteus strains against which conventional Cephalosporins are ineffective.
(12) Multimeric analysis of von Willebrand factor is necessary to diagnose von Willebrand's disease type II, in which DDAVP infusions should not be given since they are ineffective or may cause thrombocytopenia.
(13) It is concluded that under conditions in which other calcium release mechanisms operate well, InsP3 is relatively ineffective at releasing calcium from the SR in amounts sufficient to induce contraction.
(14) Hexa- and octasaccharides induced a slight increase in the number of acrosome reacted spermatozoa and disaccharides were ineffective.
(15) TE-031 was ineffective in 1 case of otitis media, but efficacious in 10 of 10 (100%) cases of upper respiratory infection, 15 of 18 (83.3%) cases of bronchitis and pneumonia, 5 of 6 (83.3%) cases of pertussis, 13 of 13 (100%) cases of mycoplasmal pneumonia, 4 of 4 (100%) cases of Chlamydia psittaci pneumonia, 16 of 16 (100%) cases of gastroenteritis (including 15 cases of Campylobacter gastroenteritis), and 1 (100%) case of impetigo.
(16) Preemployment screening methods have been ineffective in predicting those at risk, and in curbing the impact of back problems in industry.
(17) On siratro, CIAT899 induced nodules that were ineffective in acetylene reduction, whereas the EPS-deficient mutants induced effective nodules.
(18) Oligo- or polyribonucleotides are relatively ineffective initiators of polydeoxynucleotide polymerization.
(19) The H1-selective agonist, 2-(2-aminoethyl)thiazole was ineffective at doses 100 times greater than those of histamine.
(20) Anxiety disorders are no longer regarded as consequences of conflicts and ineffective defences or as concomitants of other psychiatric disorders but rather as disorders of their own.
Negate
Definition:
Example Sentences:
(1) In each sheep there was a significant negative correlation between the glucose and corticosteroid concentrations in both maternal and fetal plasma, and there were positive correlations between the maternal and fetal plasma concentrations of glucose, and between the glucose and fructose concentrations of fetal plasma.
(2) In 49 cases undergoing systemic lymphadenectomy 32 were found to have glandular involvement, of which both aortic and pelvic nodes were positive in 17 cases (53.1%), aortic nodes positive but pelvic negative in six (18.8%), and pelvic nodes positive but aortic negative in nine (28.1%).
(3) Comparison of wild type and the mutant parD promoter sequences indicated that three short repeats are likely involved in the negative regulation of this promoter.
(4) We conclude that chloramphenicol resistance encoded by Tn1696 is due to a permeability barrier and hypothesize that the gene from P. aeruginosa may share a common ancestral origin with these genes from other gram-negative organisms.
(5) In patients with coronary artery disease, electrocardiographic signs of left atrial enlargement (LAE-negative P wave deflection greater than or equal to 1 mm2 in lead V1) are associated with increased left ventricular end diastolic pressure (LVEDP).
(6) Peripheral eosinocytes increased by 10%, and tests for HBsAg, antiHBs, antimitochondrial antibody and anti-smooth muscle antibody were all negative.
(7) Binding data for both ligands to the enzyme yielded nonlinear Scatchard plots that analyze in terms of four negatively cooperative binding sites per enzyme tetramer.
(8) It is suggested that the normal cyclical release of LH is inhibited in PCO disease by a negative feedback by androgens to the hypothalamus or the pituitary, and that wedge resection should be reserved for patients in whom other forms of treatment have failed.
(9) Increases in extracellular calcium antagonized the negative inotropic effect.
(10) In a further study 1082 patients with a negative or doubtful result of the physical examination were investigated using ultrasound.
(11) Control incubations revealed an inherent difference between the two substrates; gram-positive supernatants consistently contained 5% radioactivity, whereas even at 0 h, those from the gram-negative mutant released 22%.
(12) The results obtained from these test systems were all negative.
(13) After transfection in CH4C1 cells the two isoforms are coupled with adenylate cyclase while only the shortest isoform appears negatively coupled to phospholipase C. Functional D2 dopamine receptors are present in human prolactinomas.
(14) All sera samples were tested by hemagglutination inhibition (HI) test and 881 (78.5%) of those were found to be positive and 242 (21.5%) were negative.
(15) Furthermore, high-density catalase-positive--but not catalase-negative--E. coli can survive and multiply in the presence of competitive, peroxide-generating streptococci.
(16) The remaining 5 soil samples, obtained from sites that were not in close proximity to lakes, were also negative except for one that contained type B.
(17) The percentage of eggs clamped at values more negative than -65 mV, which responded at insemination by developing an If, decreased and dropped to 0 at -80 mV.
(18) Pitlike surface structures seen in negatively stained whole cells and thin sections were correlated with periodically spaced perforations of the rigid sacculus.
(19) In addition, transitional macrophages with both positive granules and positive RER, nuclear envelope, negative Golgi apparatus (as in exudate- resident macrophages in vivo), and mature macrophages with peroxidatic activity only in the RER and nuclear envelope (as in resident macrophages in vivo) were found.
(20) In Stage II patients, chemotherapy has an impact on disease mortality for ER-positive and ER-negative premenopausal women and possibly ER-negative postmenopausal patients.