(a.) Characterized by retrogression; retrogressive.
Example Sentences:
(1) Multiple stored energy levels were randomly tested and the percent successful defibrillation was plotted against the stored energy, and the raw data were fit by logistic regression.
(2) It was found that linear extrapolations of log k' versus ET(30) plots to the polarity of unmodified aqueous mobile phase gave a more reliable value of log k'w than linear regressions of log k' versus volume percent.
(3) Using multiple regression, a linear correlation was established between the cardiac index and the arterial-venous pH and PCO2 differences throughout shock and resuscitation (r2 = .91).
(4) The ED50 and ED95 of mivacurium in each group were estimated from linear regression plots of log dose vs probit of maximum percentage depression of neuromuscular function.
(5) Time-series analysis and multiple-regression modeling procedures were used to characterize changes in the overall incidence rate over the study period and to describe the contribution of additional measures to the dynamics of the incidence rates.
(6) Regression curves indicate that although all three types of pulmonary edema can be characterized by slightly different slopes, the differences are statistically insignificant.
(7) Excretion of inactive kallikrein again correlated with urine flow rate but the regression relationship between the two variables was different for water-load-induced and frusemide-induced diuresis.
(8) Definite tumor regression, improvement of some clinical symptoms, and continuous remission over 6 mo or more were observed in six, nine, and three patients, respectively.
(9) Regression analysis on the 21 clinical or laboratory parameters studied showed that the only variable independently associated with CSF-FN was the total protein concentration in the CSF; this, however, explained only 14% of the observed variation in the CSF-FN concentration and did not show any correlation with CNS involvement.
(10) An experimental model was established in the ewe allowing one to predict with accuracy an antral follicle that coincidentally would either undergo ovulation (6-8 mm diameter) or atresia (3-4 mm diameter) following synchronization of luteal regression and the onset of the gonadotropin surge.
(11) (2) A close correlation between the obesity index and serum GPT was recognized by elevation of the standard partial regression coefficient of serum GPT to obesity index and that of obesity index to serum GPT when the data from all 617 students was analysed in one group.
(12) Regression of the tumor occurred during an episode of mechanical small bowel obstruction.
(13) Odds ratios were computed by multiple logistic regression analysis and revealed no additional relationships; however, there were suggested dose-response gradients for height, weight at age 20, and body surface area in the Japanese women and for breast size in the Caucasian women.
(14) The summary statistics examined are (a) the slope of the least-squares regression of the marker, (b) the average of the last r measurements, and (c) the difference between the averages of the last r and the first s measurements.
(15) The authors used a linear multivariate regression to evaluate the effects of distance from the highway, age and sex of the child, and housing condition.
(16) A multiple regression analysis between maxBIL and the significantly correlated parameters showed that only gestational age and birth weight remained significantly correlated with maxBIL.
(17) Data from 579 medical students from the classes of 1979-80 through 1983-84 attending a midwestern medical college were analyzed via moderated multiple regression.
(18) Comparing the regression lines of HR-QT and HR-QS2 separately for both groups, we found that both intervals decreased in parallel and the mean QT remained shorter than QS2 in both groups during exercise.
(19) Early in the regression process, cholesterol esters are reduced at least partly by hydrolysis to yield cholesterol, some of which may crystallize and inhibit rapid regression.
(20) Technically speaking, this modality of brief psychotherapy is based on the nonuse of transferential interpretations, on impeding the regression od the patient, on facilitating a cognitice-affective development of his conflicts and thus obtain an internal object mutation which allows the transformation of the "past" into true history, and the "present" into vital perspectives.
Revert
Definition:
(v. t.) To turn back, or to the contrary; to reverse.
(v. t.) To throw back; to reflect; to reverberate.
(v. t.) To change back. See Revert, v. i.
(v. i.) To return; to come back.
(v. i.) To return to the proprietor after the termination of a particular estate granted by him.
(v. i.) To return, wholly or in part, towards some preexistent form; to take on the traits or characters of an ancestral type.
(v. i.) To change back, as from a soluble to an insoluble state or the reverse; thus, phosphoric acid in certain fertilizers reverts.
(n.) One who, or that which, reverts.
Example Sentences:
(1) Friend erythroleukemia cells were induced to differentiate by dimethyl sulfoxide (DMSO) and hexamethylene-bis-acetamide (HBMA) in order to investigate whether their lipid characteristics, common to other systems of transformed cells, revert to a normal differentiation pattern.
(2) Upon depletion of ATP in contraction, the P2 intensity reverted to the original rigor level, accompanied by development of rigor tension.
(3) Lipoprotein concentrations reverted to normal after substitution with thyroxine (T4) until the euthyroid state was reached.
(4) As compared with solvent-treated control, no significant increases were observed in the number of revertant colonies in all tester strains in both systems with and without mammalian metabolic activation (S9 Mix).
(5) Proteolytic activity of cell extracts from revertants of Shigella flexneri L-forms as well as biochemical properties of these strains and their sensitivity to antibiotics were studied.
(6) A total of 43 tra-3 revertants (one intragenic, 42 extragenic) have been isolated and analyzed, in the hope of identifying new sex-determination loci.
(7) All cellular signals characterized so far are reverted during retrodifferentiation: Redistribution of PKC and down-regulation of c-fos and c-jun contribute to an interruption of the differentiation-associated transsignaling cascade.
(8) Fruiting revertants of these strains accumulate wild-type levels of alpha-mannosidase-1 activity, suggesting that both the enzymatic and morphological defects are caused by single mutations in nonstructural genes essential for early development.
(9) All revertants to prototrophy tested showed the rifampin-sensitive (Rifs) property.
(10) This product was glycosylated since it bound to concanavalin A-Sepharose and reverted to the 66-kDa polypeptide after treatment with endoglycosidase H. This glycosylated product was resistant to protease digestion and fractionated with microsomal membranes on sucrose gradients, indicating that it is incorporated into the microsomal membranes.
(11) Of the five patients who had diabetes prior to treatment, three reverted to normal glucose tolerance during treatment.
(12) We studied the activation of polyoma middle T expression in revertant cells carrying transcriptionally inactive copies of the middle T (pmt) oncogene.
(13) However, with subsequent subcultivation, eight isolates reverted back to the standard of exhibiting motility and pellicle formation.
(14) A significant correlation was observed between prolactin and creatinine concentrations in these patients (r = 0.45 P less than 0.005) and prolactin reverted towards normal after successful renal transplantation.
(15) Conversely, when obesity was permitted to recur by giving the mice free access to food, PRL levels reverted back to the original obese pattern.
(16) We have isolated and characterized revertants of ts24, a member of the A complementation group of Sindbis HR mutants, that we had demonstrated previously to have a temperature-sensitive defect in the regulation of minus-strand synthesis.
(17) All revertants of adA24 carried dominant suppressor mutations.
(18) Using this technique we have cloned and sequenced the structural protein region of ts20 and of several revertants and concluded that the mutation was a change from histidine to leucine at amino acid 291 of E2.
(19) To study important epitopes on glycoprotein E2 of Sindbis virus, eight variants selected to be singly or multiply resistant to six neutralizing monoclonal antibodies reactive against E2, as well as four revertants which had regained sensitivity to neutralization, were sequenced throughout the E2 region.
(20) Enzymatic data for those ICR-191A-induced revertants of hisD3018 arising within the hisD gene indicate that the enzyme is wild type and, therefore, that ICR-191A can cause deletions as well as additions of single base pairs.