What's the difference between prior and retroactive?

Prior


Definition:

  • (a.) Preceding in the order of time; former; antecedent; anterior; previous; as, a prior discovery; prior obligation; -- used elliptically in cases like the following: he lived alone [in the time] prior to his marriage.
  • (a.) The superior of a priory, and next below an abbot in dignity.

Example Sentences:

  • (1) Combination therapy was most effective in patients receiving HCTZ prior to enalapril.
  • (2) These results indicated that the PG determination was the most accurate predictor of fetal lung well-being prior to birth among the clinical tests so far reported.
  • (3) Prior to oral feeding, little or no ELA was detected in stools and endotoxinemia was ascertained in only six of 45 infants (13%).
  • (4) Release of 51Cr was apparently a function of immune thymus-derived lymphocytes (T cells) because it was abrogated by prior incubation of spleen cells with anti-thymus antiserum and complement but was undiminished by passage of spleen cells through nylon-wool columns.
  • (5) Prior to joining JOE Media, Will was chief commercial officer at Dazed Group, where he also sat on the board of directors.
  • (6) The secretion of GH as measured by increased plasma level, in response to oral administration of 500 mg L-dopa or 30 min-infusion of arginine, was not modified by prior intravenous administration of 200 micrograms GH-releasing hormone (GHRH).
  • (7) In a double-blind, crossover-designed study, 9 male subjects (age range: 18-25 years) received 25 mg orally, four times per day of either S or an identically-appearing placebo (P) 2 d prior to and during HA.
  • (8) The remainder of the radioactivity appeared chromatographically just prior to the bisantrene peak, indicating that compounds more polar than the parent were present as transformation products.
  • (9) The number of gastrin-immunoreactive cells actually decreases just prior to weaning but then increases at and after, weaning.
  • (10) Sephadex LH-20 column chromatography was used for the separation of the steroid prior to assay.
  • (11) Blood samples were collected from an antecubital vein at sea level (S1), in a base camp at 1515 m prior to the summit ascent (S2), on the summit at 3285 m after 6.5 hours of climbing (S3), at base camp immediately after the descent (S4), and at sea level following a trail descent from the base camp (S5).
  • (12) A direct radioimmunoassay method using highly specific antisera without prior deconjugation has been developed for determination of estradiol 17-glucuronide and estriol 16-glucuronide in human plasma.
  • (13) Multiple operations were done in 7 patients prior to the appropriate diagnosis and treatment.
  • (14) Symptoms consistent with major affective disorder were present in one half and depressive spectrum diagnoses were made in one fourth of the cases prior to final diagnosis.
  • (15) In the genitourinary clinic setting, clinical diagnosis prior to biopsy was found frequently to be inaccurate.
  • (16) None of these were apparent on prior roentgenograms of the chest.
  • (17) It has a poor prognosis prior to the current combined treatment of surgical ablation, radiation to the surgical field, and chemotherapy for microscopic metastases.
  • (18) The flow cytometric measured DNA content (i.e., DNA index), S-fractions, and histopathologic malignancy grades were studied for ninety uterine cervical squamous cell carcinomas using tissue biopsies taken prior to radiotherapy.
  • (19) The consequences of proved hypersensitivity in patients with metal-to-plastic prostheses, either present prior to insertion of the prosthesis or evoked by the implant material, are not known.
  • (20) However, the effect of prior jaw motion and the effect of the recording site on the EMG amplitudes and on the vertical dimension of minimum EMG activity have not been documented.

Retroactive


Definition:

  • (a.) Fitted or designed to retroact; operating by returned action; affecting what is past; retrospective.

Example Sentences:

  • (1) The immunity was enacted by an overwhelming bipartisan vote, with the support of leading Democrats including Barack Obama, who had promised - when seeking his party's nomination - to filibuster any bill that contained retroactive telecom immunity.
  • (2) Sixty five valid MMPI profiles, based on tests administered during the 1986 calendar year were retroactively scored for a scale designed by Sladen and Mozdzierz (1985) which was reportedly capable of identifying individuals likely to drop out of chemical dependency treatment.
  • (3) So perhaps, at some distant point in the future, the Nobel committee will find a crass way to play politics at the same time as giving a retroactive nod to Malala – unless she has become president of Pakistan: in which case she'll finally be in the sort of day job that tends to catch their eye.
  • (4) Just two weeks ago, Manafort registered retroactively with the justice department as a foreign agent for lobbying work he did from 2012 to 2014 for the Ukrainian political party.
  • (5) "There will not be any retroactive direct recapitalisation," Merkel told a news conference. "
  • (6) And now, the US supreme court just consecrated one of the most corrupt acts of the US government over the past decade: its vesting of retroactive legal immunity in the nation's telecom giants after they had been caught red-handed violating multiple US eavesdropping laws.
  • (7) Advantages and possibilities brought about by the method are presented: sensibility, reproducibility and dynamic study of the pattern of neurohormone release, without a possible retroactive action of released substances on the perifused tissue.
  • (8) Exposure to a session of tones causes retroactive interference through a cognitive effect.
  • (9) In view of this finding, that as well as a constant regulation with negative retroaction of the corticotrophic-releasing factor--adrenocorticotrophic hormone (ACTH)--cortisol system, there exists an externally controlled servomechanism from nervous system activity related to the environment.
  • (10) The AX labeling reponses showed large contrast effects (both proactive and retroactive) that were greatly reduced when auditory memory was interfered with.
  • (11) The retroactive legislation, published on Thursday evening and expected to be rushed through parliament on Tuesday, will effectively strike down a decision by three senior judges and deny benefit claimants an average payout of between £530 and £570 each.
  • (12) The analyst obtains thus the means to understand (also in a retroactive way) the value and the limits of his interpretations.
  • (13) The possibilities are discussed of stimulating the regulation of the circuit that governs the tumoral defense, keeping the negative retroaction below the limits at which it starts developing exponentially, thereby enhancing anticancer defenses.
  • (14) Retroactive studies of viral diseases using routinely processed blocks of tissue (formalin-fixed, paraffin-embedded) are therefore conceivable.
  • (15) Merkel made clear that any direct bank recapitalization, if and when it is allowed, would not be retroactive and could only be applied for future contingencies.
  • (16) Thirty patients with CPS of lateralized temporal lobe onset [15 left temporal (LT) and 15 right temporal (RT)] were compared with 15 matched controls (NC) on several measures derived from the California Verbal Learning Test (CVLT), i.e., verbal learning ability, immediate free recall, presence of retroactive interference effects, semantic organization, retrieval efficiency, and recognition memory.
  • (17) The storage loss occurs because of the retroactive influence of other traces, and the storage retention function is precisely characterized by an underlying Weibull distribution.
  • (18) The author opposes the two principal conceptions of interpretation: the deterministic conception predominant in Freud, in which the present is determined by the subject's actual past; and the creative hermeneutic conception, which traces its origins back not only to Heidegger and Ricoeur but also to Jung; in the latter view, interpretation cannot but be retroactive, assigning significance to a meaningless past.
  • (19) Nothing like this had ever been seen before: a massive, open, retroactive evaluation of scientific literature, conducted entirely by computer.
  • (20) That could include inmates who have not retroactively benefited from recent sentencing reforms, meaning they would face lighter punishments if convicted today.