What's the difference between prerequisite and required?

Prerequisite


Definition:

  • (a.) Previously required; necessary as a preliminary to any proposed effect or end; as, prerequisite conditions of success.
  • (n.) Something previously required, or necessary to an end or effect proposed.

Example Sentences:

  • (1) Confidence is the major prerequisite for a doctor to be able to help his seriously ill patient.
  • (2) The high participation percentage also shows that the prerequisite of screening, namely, a positive attitude on the part of the population, was as well fulfilled in the present project.
  • (3) For consistent identification of the normal pancreas, preliminary longitudinal scanning at, or near, the mid-line and subsequent oblique scanning in the long axis are necessary prerequisites in delineating the anatomic outline of the pancreas.
  • (4) This quantitative characterization of the properties of conduction and refractoriness of both the accessory pathway and ventriculoatrial conduction system and the relation between these characteristics and the accessory pathway location in ART patients provides additional insight into the prerequisites for the initiation and maintenance of this rhythm disturbance.
  • (5) She has imbued me with the confidence of encouraging other girls to dream alternative futures that do not rely on FGM as a prerequisite.
  • (6) The prerequisite for all champions is the refusal to cave in, so City's equaliser with only three minutes remaining was pleasing.
  • (7) To meet these prerequisites we have introduced some technical refinements: (1) computer-controlled rectilinear translations of the target in combination with different angular positions of the source and (2) computer-controlled rotations of the target around a vertical axis in combination with different angular positions of the source.
  • (8) Binding of the ilvY product at the O1 and O2 operator sites is co-operative and this ilvY protein-DNA complex in the presence of acetohydroxy acid isomeroreductase substrate is a prerequisite for RNA polymerase binding to the ilvC promoter as detected by DNase I protection experiments.
  • (9) These results point to HPV16 as one potential prerequisite for the first steps in the multistage development of human cervical cancer.
  • (10) Other experiments further implicated actin in the budding process during virus maturation, as there appeared to be a specific association of actin in vitro only with nucleocapsids that have terminated RNA synthesis, which is presumably a prerequisite to budding.
  • (11) We conclude that retained gastric peristaltic function is not a prerequisite for a good clinical outcome for swallowing and that despite vagotomy, the stomach continues to produce enough acid to maintain an acidic pH.
  • (12) The failure of agents which inhibit motility to inhibit capping of the normal lymphocytes suggests that active locomotion is not a direct prerequisite for capping.
  • (13) Compaction of the morula is a prerequisite for subsequent differentiation of the mouse embryo.
  • (14) Close cooperation of ophthalmological departments with vitreoretinal centres and early performance of urgent surgery are the basic prerequisites of better functional results of PPV in EHE.
  • (15) Oximeformation, for which keto acid production is a prerequisite, is discussed as part of the HA-tolerance.
  • (16) The capacity to sublimate and to foster sublimation in children is a prerequisite for normal motherhood.
  • (17) In addition, otoscopic accuracy is a prerequisite to optimal patient care.
  • (18) Such markers are prerequisites for therapeutic trials with potent drugs which are only justified for patients with fulminant hepatitis and patients with progression to chronicity.
  • (19) The article reviews practical aspects of tissue fixation and embedding protocols as well as methodologic aspects of the protein A-gold technique; careful control of these interrelated factors is the prerequisite for successful application.
  • (20) As a prerequisite for preparing bispecific antibody conjugates containing anti-tumor and anti-metal chelate binding sites that can be used for pretargeted immunoscintigraphy, monoclonal antibodies (Mabs) have been raised against an octahedral metal chelate synthetized from gallium (Ga) and the hexadentate ligand N,N'bis[2-hydroxy 5-(ethylene beta carboxy) benzyl] ethylenediamine N,N' diacetic acid (Ga-HBED-CC).

Required


Definition:

  • (imp. & p. p.) of Require

Example Sentences:

  • (1) A 2.5-month-old child with cyanotic heart disease who required long-term PGE1 infusions; developed widespread periosteal reactions during the course of therapy.
  • (2) Patients with normal echocardiogram and ECG on admission do not require intensive care monitoring.
  • (3) More than 2 months after the combined treatment were required for the suppression.
  • (4) It involves creativity, understanding of art form and the ability to improvise in the highly complex environment of a care setting.” David Cameron has boosted dementia awareness but more needs to be done Read more She warns: β€œTo effect a cultural change in dementia care requires a change of thinking … this approach is complex and intricate, and can change cultural attitudes by regarding the arts as central to everyday life of the care home.” Another participant, Mary*, a former teacher who had been bedridden for a year, read plays with the reminiscence arts practitioner.
  • (5) Blatter requires a two-thirds majority of the 209 voters to triumph in the opening round, with a simple majority required if it goes to a second round.
  • (6) In platform shoes to emulate Johnson's height, and with the aid of prosthetic earlobes, Cranston becomes the 36th president: he bullies and cajoles, flatters and snarls and barks, tells dirty jokes or glows with idealism as required, and delivers the famous "Johnson treatment" to everyone from Martin Luther King to the racist Alabama governor George Wallace.
  • (7) Even so, amputation of fifteen extremities and four other major excisions were required in twelve patients.
  • (8) However, its identity requires further characterization.
  • (9) Past imaging techniques shown in the courtroom have made the conventional rules of evidence more difficult because of the different informational content and format required for presentation of these data.
  • (10) Further studies are required to elucidate specific roles of the steroid-induced proteins in the effects of glucocorticoids on HTM and HS cells.
  • (11) As the requirements to store and display these images increase, the following questions become important: (a) What methods can be used to ensure that information given to the physician represents the originally acquired data?
  • (12) Maximal covalent binding of [4,5-14C]ronidazole to DNA also required four-electron reduction, consistent with previous studies of the covalent binding of this agent to immobilized sulfhydryl groups [Kedderis et al.
  • (13) Most patients of the bopindolol-group needed 1 mg once daily as compared to those on the nifedipine who required 20 mg b.i.d.
  • (14) Throughout the period of rehabilitation, the frequent changes of a patient's condition may require a process of ongoing evaluation and appropriate adjustments in the physical therapy program.
  • (15) Breast reconstruction should not be limited to the requiring patients, but should represent, in selected cases with favourable prognosis, an integrative and complementary procedure of the treatment.
  • (16) A domain containing a CA repeat, similar to ones found in other late, cAMP-induced Dictyostelium genes, is required for cAMP-induced and developmental expression.
  • (17) Many problems at the macroscopic level require clarification of how an animal uses a compartment of suite of muscles and whether morphological differences reflect functional ones.
  • (18) Although the longest period required for resolving weakness was three days, the MRI, the CT and the electroencephalogram revealed no significant abnormality.
  • (19) T cell costimulation by molecules on the antigen presenting cell (APC) is required for optimal T cell proliferation.
  • (20) In contrast, HEL antigen requires metabolically active cells for both of these processes.