(n.) The state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active force; as, an increasing variety of human activities.
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.
Impetus
Definition:
(n.) A property possessed by a moving body in virtue of its weight and its motion; the force with which any body is driven or impelled; momentum.
(n.) Fig.: Impulse; incentive; vigor; force.
(n.) The aititude through which a heavy body must fall to acquire a velocity equal to that with which a ball is discharged from a piece.
Example Sentences:
(1) The impetus for the creation of an epidemiology of mental illness came from the work of late nineteenth century social scientists concerned with understanding individual and social behavior and applying their findings to social problems.
(2) Although major reforms are underway in many total institutions to humanize treatment procedures, innovative alternatives to custodial care are gaining impetus in the community.
(3) Thus shifts in the marital structure between 1961 and 1971 could have provided little impetus to a decline in the CBR of the country.
(4) The introduction and acceptance of percutaneous nephrostomy as a safe and effective alternative to surgical nephrostomy served as the impetus for the development and expansion of an ever-increasing number of techniques that are encompassed by the term "interventional uroradiology."
(5) Two concepts are presented which attempt to clarify the pathogenesis of FIPV and at the same time may serve as an impetus for further research.
(6) It is intended to provide you with an impetus to work within your state nurses' association to learn more.
(7) Second, the impetus for change may come from unexpected sources, including those high-flying corporate women, some of whom are beginning to show promising signs of rebellion.
(8) Appropriate effort toward minimizing insult of the right ventricle could result in significantly decreasing the incidence and severity of perioperative right ventricular failure before the impetus of the continuing clinical problem dictates improvement in techniques to more appropriately treat this frequently preventable problem.
(9) The relative clinical significance of lead III Q waves and the effect of inspiration has received added impetus after the finding that Q waves have predictive value for coronary artery disease and asynergy.
(10) This question provided the impetus for the descriptive study presented here.
(11) Nevertheless, the improvement in survival provides impetus to refine and improve the procedure so that survival can reach that attained by recipients of other major organ allografts.
(12) The impetus to discover cementless techniques for fixing implants to bone is the result of the high failure rates of cemented arthroplasty in young, active patients.
(13) The development and refinement of osseointegration have had primary impetus in treatment of the totally edentulous patient.
(14) Much of the impetus to the work has come from medical requirements.
(15) Enoxacin, in common with other new oral 4-quinolones, has a broad spectrum of antimicrobial activity which includes most pulmonary pathogens (with the exception of Streptococcus pneumoniae, against which its activity is poor); this spectrum has provided the impetus for investigation of its potential in the treatment of respiratory infections.
(16) Renewable energy developers and green campaigners fear that without a similar target for 2030, the impetus to invest in renewables will be lost to fossil fuels such as gas .
(17) Brooks has long had an interest in research on the mind and the brain, but the impetus of The Social Animal came from an unlikely source.
(18) The impetus for this article was the observation of vestibular dysfunction in 15 clinical cases (12 dogs and 3 cats), in 8 of which it was confirmed that the ear canal had been rinsed with this drug combination in the presence of a ruptured tympanic membrane.
(19) The Oxford International Symposium on myocardial preservation provided an appropriate milestone and impetus to survey one aspect of operative myocardial preservation, namely blood cardioplegia, and to contrast it with the more popular crystalloid cardioplegia.
(20) Although assessment of families as guided by nursing conceptual models is gaining impetus in the field of nursing, the incorporation of psychometrically sound clinical research measures into assessment protocols is a relatively recent phenomenon in family health nursing.