(v. t.) To act in opposition to; to hinder, defeat, or frustrate, by contrary agency or influence; as, to counteract the effect of medicines; to counteract good advice.
Example Sentences:
(1) The origins of aging of higher forms of life, particularly humans, is presented as the consequence of an evolved balance between 4 specific kinds of dysfunction-producing events and 4 kinds of evolved counteracting effects in long-lived forms.
(2) Conversely, rat galanin increased unstimulated glucagon output (approximately 20%, P less than 0.05), potentiated the glucagon response to arginine (approximately 50%, P less than 0.05) and VIP (approximately 90%, P less than 0.05), and counteracted the suppressor effect of glucose on alpha-cell secretion.
(3) This inhibition is counteracted by the somewhat slower increase of NE turnover resulting in normalization of LH levels.
(4) These results suggest that CPZ interacts with smg p21B, smg GDS, or both, and thereby inhibits the smg GDS action, and that CPZ also interacts with the acidic phospholipids and thereby counteracts their inhibitory effect on the smg GDS action.
(5) Extracts from arrested cells counteracted the stimulating effects of extracts from proliferating cells with kinetics suggesting competitive interaction between stimulating and inhibitory factors.
(6) Acetylcholine increases their turnover, Atropine reduces it, and the addition of atropine counteracts the effect of acetylcholine in all these phospholipids.
(7) Whether they affect ureteral motility in vivo or whether they can counteract ureteral spasm associated with ureteral stones have not been established.
(8) Metoclopramide did not counteract the apomorphine effect and, in higher doses, water intake was even further reduced.
(9) This effect increases with the estrogen dose and is counteracted more effectively by androgenic progestogens such as levonorgestrel than by nonandrogenic progestogens such as desogestrel.
(10) PGE2 counteracted the NA-effect in the former group of patients but did not affect the influence of NA at term.
(11) Addition of heme in vitro (10(-6)M) to the latter nuclei results in a significant counteraction of the decreased cytochrome P-450 (c + d) mRNA transcription.
(12) Two functions of these have been proposed: 1) that they are compatible osmolytes which regulate cell volume (against high external NaCl) without inhibiting proteins and 2) that methylamines (GPC and betaine) are counteracting osmolytes which stabilize proteins against perturbation from high renal urea.
(13) For this rather large pressures (about 700 hPa) are required to overcome the surface forces counteracting droplet formation.
(14) The drop in the blood-sugar levels was counteracted by corresponding infusions of glucose by the BIOSTATOR via a special clamp technique.
(15) In the wild strain (Em 5297a) thiourea is tenfold more toxic on an allantoin medium than on an inorganic nitrogen medium; allantoin as well as urea counteract thiourea toxicity in the allantoin nitrogen medium.
(16) Retinal traction can be counteracted by the oil up to a calculated threshold value, depending on the size and shape of the tear, the strength of the surface tension and, most importantly, the distance between the retina and choroid.
(17) Some of the changes found may be a result of adaptive mechanisms occurring in order to counteract the different biophysical effects of ethanol.
(18) This study evaluates whether suturing of replaced flaps with crown-attached sutures, following reconstructive surgery, counteracts postoperative recession of the gingival margins and facilitates new attachment.
(19) In the present article is shown that the histamine releasing effect is counteracted by the addition of histamine to the superfusion fluid.
(20) This barrier effect was partially counteracted by monensin or carbonyl cyanide m-chlorophenylhydrazone.
Void
Definition:
(a.) Containing nothing; empty; vacant; not occupied; not filled.
(a.) Having no incumbent; unoccupied; -- said of offices and the like.
(a.) Being without; destitute; free; wanting; devoid; as, void of learning, or of common use.
(a.) Not producing any effect; ineffectual; vain.
(a.) Containing no immaterial quality; destitute of mind or soul.
(a.) Of no legal force or effect, incapable of confirmation or ratification; null. Cf. Voidable, 2.
(n.) An empty space; a vacuum.
(a.) To remove the contents of; to make or leave vacant or empty; to quit; to leave; as, to void a table.
(a.) To throw or send out; to evacuate; to emit; to discharge; as, to void excrements.
(a.) To render void; to make to be of no validity or effect; to vacate; to annul; to nullify.
(v. i.) To be emitted or evacuated.
Example Sentences:
(1) Stimulation with these electrodes were effective for inducing voiding with little residual volume after the recovery of bladder reflexes, 3 weeks after experimental spinal cord injury in the dog.
(2) The Lex antigen was present in the void volume fraction of the majority (85%) of sera from adenocarcinoma patients.
(3) To facilitate detoxification, the centrifuge is employed to provide plasma rich in toxins, but void of potentially interfering blood components such as platelets and whole blood cells.
(4) The acquisition of dryness is accelerated by eradication of bacteriuria and a sympathetic and energetic management regime, which should place responsibility on the child and result in the child voiding more frequently and completely.
(5) Excretory urogram revealed bilateral hydronephrosis and voiding cystogram revealed VUR on left ureter.
(6) Primary invasive adenocarcinoma of the bladder was diagnosed in a fifty-two-year-old male with a two-month history of irritative voiding symptoms.
(7) Residual urine volume and urine voiding efficiency are also calculated.
(8) During unstable detrusor contractions, which even in these healthy women are observed during bladder filling and also during inhibited voidings through the urethra, the contraction is weaker.
(9) Some of this LPS-associated polysaccharide eluted as the void volume of a G-100 column but differed from PS by its lack of galactose and arabinose.
(10) Cytological examination of voided urine is an established investigation in urological practice.
(11) At 12 months TURP had also improved micturition time and voided volume, which TUI had not.
(12) Chlamydia trachomatis was detected from first-voided urine sediments of 97 male patients with urethritis by polymerase chain reaction (PCR).
(13) SEM of the resulting surface showed rounded fragments of enamel rods, enamel melting, cracks, and smooth-edged voids.
(14) By 16 weeks, fibrocartilage had filled the void in the curetted disc spaces.
(15) Both the void volume protein peak and the procoagulant activity peak from the 0.25 M calcium chloride-agarose gel column support ristocetin-induced platelet aggregation.
(16) It is concluded that imaging of the urinary tract is not necessary for pure nightwetters, while ultrasonography or uroflowmetry and more sophisticated radiological or urological methods should be focused on those children with daytime wetting and clinical symptoms of voiding disturbances.
(17) Cation exchange chromatography on carboxymethylcellulose-Sephadex with a starting buffer of pH 5 containing 2 mM CHAPS plus 20 mM beta-OG, followed by a pH 8 buffer, showed a very small OD peak at the void volume (P) and a second peak with about 95% of the protein (E).
(18) The one peak which was common to both sera appeared with the void volume and was identified as albumin.
(19) The first peak eluted at the void volume containing lipoproteins, alpha 2- and beta 2-macroglobulins, and the second peak at the fraction of albumin.
(20) Oxendolone + bunazosin tended to show a better clinical efficacy than the other of these regimens, when the improvement was defined as that with more than one degree in the severity of retarded voiding, prolonged voiding, urinary stream condition, abdominal pressure on voiding and residual urine sensation.