(a.) Having the power or quality of acting; causing change; communicating action or motion; acting; -- opposed to passive, that receives; as, certain active principles; the powers of the mind.
(a.) Quick in physical movement; of an agile and vigorous body; nimble; as, an active child or animal.
(a.) In action; actually proceeding; working; in force; -- opposed to quiescent, dormant, or extinct; as, active laws; active hostilities; an active volcano.
(a.) Given to action; constantly engaged in action; energetic; diligent; busy; -- opposed to dull, sluggish, indolent, or inert; as, an active man of business; active mind; active zeal.
(a.) Requiring or implying action or exertion; -- opposed to sedentary or to tranquil; as, active employment or service; active scenes.
(a.) Given to action rather than contemplation; practical; operative; -- opposed to speculative or theoretical; as, an active rather than a speculative statesman.
(a.) Brisk; lively; as, an active demand for corn.
(a.) Implying or producing rapid action; as, an active disease; an active remedy.
(a.) Applied to a form of the verb; -- opposed to passive. See Active voice, under Voice.
(a.) Applied to verbs which assert that the subject acts upon or affects something else; transitive.
(a.) Applied to all verbs that express action as distinct from mere existence or state.
Example Sentences:
(1) Tryptic digestion of the membranes caused complete disappearance of the binding activity, but heat-treatment for 5 min at 70 degrees C caused only 40% loss of activity.
(2) A study revealed that the percentage of active sperm in semen 30 seconds after ejaculation was 10.3% when a nonoxynol 9 latex condom was used as opposed to 55.9% in a nonspermicidal condom.
(3) The most actively proliferating region of the excurrent duct system is zone 3 of the epididymis, whereas the least active region is the ductuli efferentes.
(4) Spectral analysis of spontaneous heart rate fluctuations, a powerful noninvasive tool for quantifying autonomic nervous system activity, was assessed in Xenopus Laevis, intact or spinalized, at different temperatures and by use of pharmacological tools.
(5) Activity of Na,K-ATPase activity was measured as a functional marker for synaptosomal membranes.
(6) The antiarrhythmic activity similar to that of quinidine (with ca.
(7) The microsomal preparations from untreated Syrian golden hamster livers exhibited higher activities of N-demethylation towards the macrolide antibiotics, erythromycin and troleandomycin, than those from untreated and phenobarbital-treated rats.
(8) Patient plasma samples demonstrated evidence of marked complement activation, with 3-fold elevations of C3a desArg concentrations by the 8th day of therapy.
(9) After stimulation with lipopolysaccharide and calcium ionophore A23187, culture supernatants of clones c18A and c29A showed cytotoxic activity against human melanoma A375 Met-Mix and other cell lines which were resistant to the tumor necrosis factor, lymphotoxin and interleukin 1.
(10) Phospholipid methylation in human EGMs is distinctly different from that in rat EGMs (Hirata and Axelrod 1980) in that the human activity is not Mg++-dependent, and apparent methyltransferase I activity is located in the external membrane surface.
(11) Increased plasmin activity was associated with advancing stage of lactation and older cows after appropriate adjustments were made for the effects of milk yield and SCC.
(12) Arachidic acid was without effect, while linoleic acid and linolenic acid were (on a concentration basis) at least 5-times less active than arachidonic acid.
(13) Following in vitro C activation in NHS by delta IgG, the 40 KD C4d component increased markedly.
(14) One hour after direct mechanical cardiomassage (DMCM) a moderately pronounced edema of the intercellular spaces in the basal compartment of the seminiferous epithelium, normal content of lactate and succinate dehydrogenases, and a certain decrease in the activity of glucose-6-phosphate dehydrogenases and NAD- and NADP-diaphorases were noted.
(15) We conclude that first-transit and blood-pool techniques are equally accurate methods for determining EF when the time-activity method of analysis is employed.
(16) This difference was not due to ATPase activity in the assay.
(17) In the surface epithelial cells, the basolateral cell surface showed moderate enzymatic activity.
(18) Both the vitellogenesis and the GtH cell activity are restored in the fish exposed to short photoperiod if it is followed by a long photoperiod.
(19) It was shown in experiments on four dogs by the conditioned method that the period of recovery of conditioned activity after one hour ether anaesthesia tested 7 to 7.5 days.
(20) Together these results suggest that IVC may operate as a selective activator of calpain both in the cytosol and at the membrane level; in the latter case in synergism with the activation induced by association of the proteinase to the cell membrane.
Aggressive
Definition:
(a.) Tending or disposed to aggress; characterized by aggression; making assaults; unjustly attacking; as, an aggressive policy, war, person, nation.
Example Sentences:
(1) Open field behaviors and isolation-induced aggression were reduced by anxiolytics, at doses which may be within the sedative-hypnotic range.
(2) Although lorazepam and haloperidol produced an equivalent mean decrease in aggression, significantly more subjects who received lorazepam had a greater decrease in aggression ratings than haloperidol recipients; this effect was independent of sedation.
(3) Family therapists have attempted to convert the acting-out behavioral disorders into an effective state, i.e., make the family aware of their feelings of deprivation by focusing on the aggressive component.
(4) Recognition of the distinctive morphology of MH and the performance of ancillary studies on cytologic preparations should facilitate the rapid diagnosis and early treatment of this aggressive disease.
(5) Ovarian clear cell adenocarcinoma has distinctly different clinical behavior compared to serous carcinoma and should be regarded as an aggressive epithelial histologic type.
(6) Carcinomas exhibiting atypical behavior are characteristically undifferentiated and aggressive.
(7) In Study 4, attributional biases and deficits were found to be positively correlated with the rate of reactive aggression (but not proactive aggression) displayed in free play with peers (N = 127).
(8) This excess in diagnosis comprises, in particular, the ductal type, primarily its most aggressive forms.
(9) This documents the inhibitory role which lithium can play in several examples of animal aggressive behavior including pain-elicited aggression, mouse killing in rats, isolation-induced aggression in mice, p-chlorophenylalanine-induced aggression in rats, and hypothalamically induced aggression in cats.
(10) In the total sample, PEI factors and negative nominations were more stable than positive nominations, and PEI Aggression and Withdrawal scores were more stable than negative nominations.
(11) However, the typically deep invasion of the former tumors and their histologic features indicate that they are highly aggressive neoplasms.
(12) In Japan, particularly, there is a feeling that they were built less out of need than as another outlet for the aggressively proactive concrete industry.
(13) This experience, comparable to that reported by others, suggests that aggressive treatment in the terminal phase of CML is justified only as part of a prospective and well-controlled study.
(14) Three experiments in person perception were conducted to investigate the conditions under which naive observers label an actor as aggressive and to ascertain how this label affects the reactions of the observers to the actor.
(15) These changes in the isozyme pattern of PK in aggressive fibromatosis may act as another argument to place them in the category of malignant fibroblastic tumors.
(16) Response to a single, 5-mg dose of methylphenidate was compared in aggressive and nonaggressive attention-deficit hyperactivity disorder (ADHD) children using objective measures of inattention, impulsivity, and activity level.
(17) Factors contributing to a more aggressive form of carcinoma are unclear and require further study.
(18) Age at diagnosis (greater than or equal to 60 years vs less than or equal to 60 years), total number of involved sites, tumor bulk (mass size greater than or equal to 10 cm vs less than 10 cm), serum LDH (greater than or equal to 500 Units) and prompt achievement of complete remission following intensive combination regimens appear to be the most important variables predicting for cure in aggressive lymphomas.
(19) By and large, male and female rats react similarly to treatment with serotonergic drugs stressing the consistent role of 5-HT in different forms of aggression.
(20) These findings suggest that community differences in levels of violence are perpetuated as Zapotec children learn community-appropriate patterns for expressing aggression and continue to express these patterns as adults.