What's the difference between affect and impact?

Affect


Definition:

  • (v. t.) To act upon; to produce an effect or change upon.
  • (v. t.) To influence or move, as the feelings or passions; to touch.
  • (v. t.) To love; to regard with affection.
  • (v. t.) To show a fondness for; to like to use or practice; to choose; hence, to frequent habitually.
  • (v. t.) To dispose or incline.
  • (v. t.) To aim at; to aspire; to covet.
  • (v. t.) To tend to by affinity or disposition.
  • (v. t.) To make a show of; to put on a pretense of; to feign; to assume; as, to affect ignorance.
  • (v. t.) To assign; to appoint.
  • (n.) Affection; inclination; passion; feeling; disposition.

Example Sentences:

  • (1) The urinary excretion of PGF2 alpha was not affected by atenolol.
  • (2) Age difference did not affect the mean dose-effect response.
  • (3) Thirteen patients with bipolar affective illness who had received lithium therapy for 1-5 years were tested retrospectively for evidence of cortical dysfunction.
  • (4) alpha 1-Adrenergic agonists, phenylephrine and norfenefrine, did not affect the synthesis.
  • (5) Coronary arteritis has to be considered as a possible etiology of ischemic symptoms also in subjects who appear affected by typical atherosclerotic ischemic heart disease.
  • (6) A progressively more precise approach to identifying affected individuals involves measuring body weight and height, then energy intake (or expenditure) and finally the basal metabolic rate (BMR).
  • (7) Serum samples from 23 families, including a total of 48 affected children, were tested for a set of "classical markers."
  • (8) This article describes a number of syndromes affecting the nail unit.
  • (9) We conclude that the SHBG concentration strongly affects this estimation.
  • (10) When perfusion of the affected lung was less than one-third of the total the tumour was found to be unresectable.
  • (11) We postulate that FAA may affect the human peripheral and mucosal immune system.
  • (12) These results suggest that the pelvic floor is affected by progressive denervation but descent during straining tends to decrease with advancing age.
  • (13) The statistical T value calculated for the LP-TAE group showed that the administration of LP, the tumor size, intrahepatic metastasis, portal vein infiltration, and serum total bilirubin and alpha-fetoprotein levels significantly (P < 0.01) affected the patients' survival.
  • (14) "We have a good reputation, so this won't affect us at all.
  • (15) Extensive studies during recent years have shown that the interaction between hormone and membrane-bound receptor can affect the receptor characteristics in at least two ways.
  • (16) The correlates of three characteristics of familial networks (i.e., residential proximity, family affection, and family contact) were examined among a national sample of older Black Americans.
  • (17) It was concluded that the significant factors affecting outcome are tumor cell type and presence or absence or mitoses.
  • (18) The specific activities of extracts from cells grown under phototrophic and aerobic conditions were similar and not affected by the concentration of iron in the growth media.
  • (19) Periodontal diseases are a collection of disorders that may affect patients throughout life.
  • (20) The pH gradient measured with dimethyloxazolidine-2,4-dione and acetylsalicylic acid was very small in both bacteria at a high pH above 8, and was not affected significantly by the addition of CCCP.

Impact


Definition:

  • (v. t.) To drive close; to press firmly together: to wedge into a place.
  • (n.) Contact or impression by touch; collision; forcible contact; force communicated.
  • (n.) The single instantaneous stroke of a body in motion against another either in motion or at rest.

Example Sentences:

  • (1) Technical factors that account for increased difficulty in these patients include: problems with guide catheter impaction and ostial trauma; inability to inflate the balloon with adequate guide catheter support; and need for increased intracoronary manipulation.
  • (2) McDonald said cutting better deals with suppliers and improving efficiency as well as raising some prices had only partly offset the impact of sterling’s fall against the dollar.
  • (3) A triphasic pattern was evident for the neck moments including a small phase which represented a seating of the headform on the nodding blocks of the uppermost ATD neck segment, and two larger phases of opposite polarity which represented the motion of the head relative to the trunk during the first 350 ms after impact.
  • (4) In addition, congenital anemias such as sickle cell disease can impact on the health of the mother and fetus.
  • (5) The effects of brain injury can be catastrophic and long-term so the impact of more research would be vast, but affected numbers are too small so it loses out.
  • (6) The impact of ending 500 years of shipbuilding in Portsmouth won't be seen in the data for a while.
  • (7) In Stage II patients, chemotherapy has an impact on disease mortality for ER-positive and ER-negative premenopausal women and possibly ER-negative postmenopausal patients.
  • (8) The matter is now in the hands of the Guernsey police and the law officers.” One resident who is a constant target of the paper and has complained to police, Rosie Guille, said the allegations had a “huge impact on morale” on the island.
  • (9) The Black pregnant teen is a microcosm of the impact of society on the most vulnerable.
  • (10) We propose that the results mainly reflect a variable local impact of infection control and that a much more restrictive use of IUTCs is possible in many wards.
  • (11) In assessing damaged nets and curtains it must be recognised that anything less than the best vector control may have no appreciable impact on holoendemic malaria.
  • (12) The pharmacological effects characterize reproterol as a bronchospasmolytic with preferential impact on the adrenergic beta2-receptors.
  • (13) The procedure includes identifying "critical individuals," i.e., those who would have the greatest impact on the lod scores, should their diagnostic status in fact change.
  • (14) He elaborates: "Republicans use powerful economic wedge issues to great impact.
  • (15) These agents may improve functional status, but in general have had little impact on survival.
  • (16) While much research has examined the aetiology and treatment of asthma, little work has been done on its social impact.
  • (17) Further development of meta-analysis in such an expanded way may have an important impact on decision-making in clinical medicine, and in health policies.
  • (18) Principal conclusions are: 1) rapid change to predominantly heterosexual HIV transmission can occur in North America, with serious societal impact; 2) gender-specific clinical features can lead to earlier diagnosis of HIV infection in women; 3) HIV infection in women does not pursue an inherently more rapid course than that observed in men.
  • (19) "I have to say that it is my expectation that they probably can be, because the data that we have to date is unlikely to show an adverse impact."
  • (20) The impact of ethnicity on the stress process in old age was examined using two surveys of Australians aged 60 years and older.