(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.
Sedentary
Definition:
(a.) Accustomed to sit much or long; as, a sedentary man.
(a.) Characterized by, or requiring, much sitting; as, a sedentary employment; a sedentary life.
(a.) Remaining in one place, especially when firmly attached to some object; as, the oyster is a sedentary mollusk; the barnacles are sedentary crustaceans.
Example Sentences:
(1) Male Sprague Dawley rats either trained (T, N = 9) for 11 wk on a rodent treadmill, remained sedentary, and were fed ad libitum (S, N = 8) or remained sedentary and were food restricted (pair fed, PF, N = 8) so that final body weights were similar to T. After training, T had significantly higher red gastrocnemius muscle citrate synthase activity compared with S and PF.
(2) During recovery, while the heart rate decreased and the RR interval variance increased, there was a relative increase in LF and a relative decrease in HF in normal subjects (either sedentary or athletic).
(3) Results on resting blood pressure, serum lipids, vital capacity, flexibility, upper body strength, and vertical jump tests were comparable to values found for the sedentary population.
(4) Maybe it’s because they are skulking, sedentary creatures, tied to their post; the theatre critic isn’t going anywhere other than the stalls, and then back home to write.
(5) Ten animals served as sedentary controls, the 10 experimental animals were subjected to a training program with gradually increasing intensity of 18 weeks duration on a motor-driven treadmill.
(6) Thirty-five healthy, sedentary postmenopausal women, 55 to 70 years old.
(7) First, the decrement in the maximal heart rate response to exercise (known as "chronotropic incompetence") found in the sedentary MI rat was completely reversed by endurance training.
(8) However, the mean serum EPO concentrations of male and female athletes engaged in a variety of sports were not different from those of sedentary control subjects of both sexes (26.5-35.3 U.ml-1).
(9) The present investigation was undertaken to evaluate the vagal function of trained (T) and sedentary (S) rats by use of different approaches in the same animal.
(10) Many of these factors, including hypertension, smoking, elevated blood fats, sedentary life style, and Type A personality, are related to life-style habits and, therefore, are modifiable.
(11) Fit elderly score higher on tests of fluid intelligence than aged-matched sedentary controls.
(12) Both LPD and exercise training (EXT) were found to increase significantly the rate of TG-FA substrate cycling above the rates observed in dietary and sedentary control groups.
(13) A total of 60 male Sprague-Dawley rats were randomly assigned at 6 weeks of age to a sedentary control group (n = 22) or to a group with unlimited access to a running wheel (n = 38).
(14) De novo synthesis of adenine nucleotide was measured in quiescent and contracting muscle of sedentary and exercise-trained rats using an isolated perfused hindquarter preparation.
(15) However, the long-term exercise regimen prevented the age-associated decline in CPK activity found in sedentary animals.
(16) When the circadian rhythm of serotonin (5-HT) and 5-HIAA was studied in the hypothalamus, a minimum of 5-HT as seen in semistarved sedentary and running rats around feeding time (noon).
(17) Regional differences of substrate oxidation rates in the myocardium of old sedentary or trained rats were less than in young rats, suggesting that regional differences in the cardiac work load disappear during ageing.
(18) Subsequently, groups were subdivided into exercise-trained (T) and sedentary (S) groups.
(19) A total of 418 biopsies was obtained from the vastus lateralis muscle of 270 healthy sedentary and 148 physically active individuals of both sexes.
(20) The structural and mechanical properties of the runners' tarsometatarsus bones were compared with sedentary age-matched controls at 8 and 12 wk of age.