What's the difference between contingency and necessity?

Contingency


Definition:

  • (n.) Union or connection; the state of touching or contact.
  • (n.) The quality or state of being contingent or casual; the possibility of coming to pass.
  • (n.) An event which may or may not occur; that which is possible or probable; a fortuitous event; a chance.
  • (n.) An adjunct or accessory.
  • (n.) A certain possible event that may or may not happen, by which, when happening, some particular title may be affected.

Example Sentences:

  • (1) The interresponse-time reinforcement contingencies inherent in these schedules may actually mask the effects of overall reinforcement rate; thus differences in response rate as a function of reinforcement rate when interresponse-time reinforcement is eliminated may be underestimated.
  • (2) The effects of learning history were evident on sessions 4 and 5 when the same consequence was contingent upon the performance of all groups.
  • (3) However, during massed testing, all subjects trained with response contingent CS termination showed an overall extinction influence, which was most pronounced in the medial subgroup, although the laterals showed frequency control as well.
  • (4) Aggressive responding was maintained by contingent presentation of periods free of point subtractions, i.e., provocations.
  • (5) The aim in postoperative pain therapy is a time-contingent dosing after careful intravenous titration of the compound in the lower dose range during continuous supervision.
  • (6) The results indicate that behavior in transition states maintained by reinforcement contingencies in the radial maze is similar to that maintained by extended chained schedules, despite the fact that some of the stimuli controlling behavior in the maze are absent at the moment behavior is emitted.
  • (7) He said there were a sufficient number of shifts at Heathrow to maintain "a full immigration desk policy" and insisted the contingency planning for security at the Games, which had seen more than 18,000 military personnel called in, meant the government had enough troops in place or in reserve to make up for the G4S staffing fiasco.
  • (8) The bill is due to become law in the summer and is already forcing the party to make contingency plans including the possible sale of property.
  • (9) The level of disruption to services will vary widely and depend on the number of staff joining the strike, the mitigating impact of the NHS’s contingency planning and how many patients need acute care, such as A&E care or surgery.
  • (10) For each subject, reinforcers (money) were contingent upon responses on each of two panels: (1) a matching panel for working matching-to-sample problems, and (2) a sample panel for producing the sample stimulus.
  • (11) These interventions are effective, however, only as long as the contingencies are in effect.
  • (12) In contrast, rudiments of internal organs provided their own contingent of endothelial precursors, a process termed vasculogenesis.
  • (13) In this experiment, reward and punishment contingencies were directly manipulated to produce approach and withdrawal emotional states.
  • (14) Development of an aorta and pulmonary trunk with tricuspid semilunar valves appears to be contingent on the appearance of separate entwined ventricular ejection streams.
  • (15) In the present study, subjects with traumatic brain injury (TBI) were given four behavioural measures of executive function, two measures of posterior nonexecutive function, and a Contingent Negative Variation (CNV) task, a proposed electrophysiological index of frontal-lobe functioning.
  • (16) Using contingency table analysis, we found the following were significantly related to clinical hydrocephalus: increasing age; preexisting hypertension; admission blood pressure measurements; postoperative hypertension; admission CT findings of intraventricular hemorrhage, a diffuse collection of subarachnoid blood, and a thick focal collection of subarachnoid blood; posterior circulation site of aneurysm; focal ischemic deficits; use of antifibrinolytic drugs preoperatively; hyponatremia; admission level of consciousness; and a low score on the Glasgow outcome scale.
  • (17) Rats were trained to perform shuttle responses to a buzzer in four different situations: pseudoconditioning or D test (buzzers and footshocks presented at random), classical conditioning or DP test (buzzers and footshocks paired on every trial), avoidance without stimulus pairing or DC test (buzzer-shock intervals varied at random, shocks contingent upon non-emission of a shuttle response to the preceding buzzer), and standard two-way avoidance or DPC test (buzzers paired to shocks, but the latter omitted every time there was shuttling to the buzzer).
  • (18) The results support the assumption of the distraction arousal model used as an interpretation of these effects on contingent negative variation and suggest that high CO absorbing smokers possibly depend more on neuropharmacological effects of smoking than smokers with a low amount of CO absorption.
  • (19) Single-case methodology was used to evaluate the effectiveness of contingent reinforcement in promoting head posture in an adult brain-injured male.
  • (20) Experiment II indicated that a severely retarded male would also work at a high work rate under a self-determined reinforcement contingency.

Necessity


Definition:

  • (n.) The quality or state of being necessary, unavoidable, or absolutely requisite; inevitableness; indispensableness.
  • (n.) The condition of being needy or necessitous; pressing need; indigence; want.
  • (n.) That which is necessary; a necessary; a requisite; something indispensable; -- often in the plural.
  • (n.) That which makes an act or an event unavoidable; irresistible force; overruling power; compulsion, physical or moral; fate; fatality.
  • (n.) The negation of freedom in voluntary action; the subjection of all phenomena, whether material or spiritual, to inevitable causation; necessitarianism.

Example Sentences:

  • (1) The indication of the DNA probe method would be considered in the four cases as follows, 1. necessity of the special equipment to isolate the pathogen, 2. necessity of the long period to isolate the pathogen, 3. existence of the cross reaction among the pathogen and relative organisms in the immunological procedure, 4. existence of the difficulty to identify the species of the pathogen by the ordinary procedure.
  • (2) Among 159 patients studied, the severity most frequent was Yahr stage 3 (63%) at first examination, indicating the necessity of earlier diagnosis.
  • (3) When a product is selected for a patient, consideration should be given to necessity, efficacy, adverse effects, and cost-effectiveness.
  • (4) Discussion deals with the plurality, specificity, variability, perceived necessity, sufficiency, international utility and career significance of British postgraduate qualifications.
  • (5) As a result of recent environmental changes in the health care industry, marketing has become a vital necessity for the survival of most hospitals.
  • (6) There is a necessity for early definitive decision-making in the borderline orthognathic surgery patient and the role of orthodontic camouflage is pointed out.
  • (7) For Kohut, interpretation depends on the prior establishment of a stable, sustaining transference; human connexion is a lifelong necessity and full understanding an achievable aim.
  • (8) Management and treatment issues are surveyed, such as the necessity to recognize that in some adolescents violence erupts not from narcissitic rage but from strong wishes for affectionate contact.
  • (9) A prospective study of the necessity of sedation, or analgesia, or both in total colonoscopy was performed.
  • (10) The authors report on the casuistry of aorto-coronary by-pass operations they performed between April 1971 and December 1974, discussing the criteria which indicate the necessity of operating, the principles of the operative techniques, and the results obtained.
  • (11) This case, despite the fatal outcome, emphasises the necessity for a comprehensive approach to the diagnosis of atypical pneumonia, including culture for Legionella, especially in immunocompromised patients.
  • (12) The sonographic method, with a 97.7% specificity and a negative predictive value of 89.5%, proved to be specific enough to eliminate the necessity of routine catheterization for measuring residual bladder volumes of greater than or equal to 150 cm3, thus decreasing the incidence of some major postoperative complications that can occur due to unnecessary catheterization.
  • (13) The development of gallstones following this procedure, however, has become more problematic in that further opeation becomes a real necessity.
  • (14) The necessity of using immunohistochemistry in the diagnosis of sinonasal tumours of fibromatous nature is emphasized.
  • (15) The experience with 1896 restorative operations on injured nerve trunks shows a necessity to consider the problems of diagnosis, prognosis and choice of the treatment, and especially the results of the nerve suture, not in all patients with nerve injury but only in separate groups being comparable with respect to the kind and severity of the trauma.
  • (16) Clinico-immunological studies on the use of drugs containing synthetic and biological polymers revealed their high immunomodulating activity and necessity of differentiated use of these drugs with relation to the pathogenetic mechanisms of development of bronchopulmonary diseases as well as mechanisms of their immunological action determined by the molecular mass of polymers as constituents of blood substitutes.
  • (17) We consider that the rarity of stricture rules out the necessity of any change in management, whether or not erosive oesophagitis is observed at endoscopy.
  • (18) The discrepancy between the judgement of the insurance company based upon the medical records and the patients complaints also 4-7 years after injury as well as the diversification of therapeutical procedures used in the long term patients career are indicating a necessity of prospective study on cervical spine injury.
  • (19) Through small and large acts of deprivation and destruction we follow the process: the removal of hope, of dignity, of luxury, of necessity, of self; the reduction of a man to a hoarder of grey slabs of bread and the scrapings of a soup bowl (wonderfully told all this, with a novelist's gift for detail and sometimes very nearly comic surprise), to the confinement of a narrow bed – in which there is "not even any room to be afraid" – with a stranger who doesn't speak your language, to the cruel illogicality of hating a fellow victim of oppression more than you hate the oppressor himself – one torment following another, and even the bleak comfort of thinking you might have touched rock bottom denied you as, when the most immediate cause of a particular stress comes to an end, "you are grievously amazed to see that another one lies behind; and in reality a whole series of others".
  • (20) In light of the AIDS epidemic and the necessity for safe-sex practices, the topic of caution and prevention is an emerging and critical discourse for the sexual encounter.