What's the difference between background and past?

Background


Definition:

  • (n.) Ground in the rear or behind, or in the distance, as opposed to the foreground, or the ground in front.
  • (n.) The space which is behind and subordinate to a portrait or group of figures.
  • (n.) Anything behind, serving as a foil; as, the statue had a background of red hangings.
  • (n.) A place in obscurity or retirement, or out of sight.

Example Sentences:

  • (1) The prevalence of 24.4% among Mexican American men was similar to that among men from other ethnic backgrounds.
  • (2) But the sports minister has been clear that too many sports bodies are currently not delivering in bringing new people from all backgrounds to their sport.
  • (3) Fluttering in the background was a black flag adorned with white script, the “black flag of jihad”.
  • (4) They retained the ability to make this discrimination when the coloured stimuli were placed against a background bright enough to saturate the rods.3.
  • (5) If black people could only sort out these self-inflicted problems themselves, everything would be OK. After all, doesn't every business say it welcomes job applicants from all backgrounds?
  • (6) White lesions (NRL) against a gray background on cut section of brain increase in size with increasing time of arrest.
  • (7) These results might help to explain why only a minority of individuals with a susceptible HLA type develop uveitis, as well as the variable incidence of disease in HLA-identical populations of different ethnic backgrounds.
  • (8) It will act as a further disincentive for women to seek help.” When Background Briefing visited Catherine Haven in February, the refuge looked deserted, and most of its rooms were empty, despite the town having one of the highest domestic violence rates in the state.
  • (9) The aim of the study was to describe and evaluate background factors, with special regard to psychosocial characteristics that might possibly affect the outcome of rhinoplastic surgery.
  • (10) In the analysis of background fluorescence, the principal components were, as for the two-step technique, autofluorescence and propidium spectral overlap.
  • (11) Subjects' musical backgrounds were evaluated with a survey questionnaire.
  • (12) After 10-20 hr of culture, both membrane and cytoplasmic PKC activity had declined to background levels.
  • (13) It’s gender, age, disability, sexual orientation, social background, and – most important of all, as far as I’m concerned – diversity of thought.” Diversity needs action beyond the Oscars | Letters Read more He may have provided the Richard Littlejohn wishlist from hell – you know the one, about the one-legged black lesbian in a hijab favoured by the politically correct – but as a Hollywood A-lister, the joke’s no longer on him.
  • (14) The dual-probe system incorporates a central collimated probe for monitoring activity in the LV surrounded by an annular detector collimated in such a manner as to provide simultaneous real-time monitoring of the LV background activity.
  • (15) The relationship between certain prenatal and background variables and maternal confidence also was assessed.
  • (16) The technique is based on a multiple regression analysis of the renal curves and separate heart and soft tissue curves which together represent background activity.
  • (17) The electron spectroscopic diffraction (ESD) mode of operation of an energy-filtering electron microscope offers the possibility of being able to avoid the background from inelastic scattering in selected-area electron diffraction patterns.
  • (18) The absence of ACh therefore appears to reduce the cortical response to stimulation, while background activity values do not change.
  • (19) President Essebsi has promiised to govern for all Tunisians and said he had the technocratic background to manage security and economic challenges.
  • (20) An epidemiologic background appropriate to "serum" hepatitis, either transfusion (one bout) or illicit self-injection (46 bouts), was associated just as frequently with serologically non-B episodes as with identified type B disease.

Past


Definition:

  • (v.) Of or pertaining to a former time or state; neither present nor future; gone by; elapsed; ended; spent; as, past troubles; past offences.
  • (n.) A former time or state; a state of things gone by.
  • (prep.) Beyond, in position, or degree; further than; beyond the reach or influence of.
  • (prep.) Beyond, in time; after; as, past the hour.
  • (prep.) Above; exceeding; more than.
  • (adv.) By; beyond; as, he ran past.

Example Sentences:

  • (1) In this study of ten consecutive patients sustaining molten metal injuries to the lower extremity who were treated with excision and grafting, treatment with compression Unna paste boot was compared with that with conventional dressing.
  • (2) Anti-corruption campaigners have already trooped past the €18.9m mansion on Rue de La Baume, bought in 2007 in the name of two Bongo children, then 13 and 16, and other relatives, in what some call Paris's "ill-gotten gains" walking tour.
  • (3) In the past, the interpretation of the medical findings was hampered by a lack of knowledge of normal anatomy and genital flora in the nonabused prepubertal child.
  • (4) A diplomatic source said the killing appeared particularly unusual because of Farooq lack of recent political activity: "He was lying low in the past two years.
  • (5) 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.
  • (6) In the past 6 years 26 patients underwent operation for recurrent duodenal ulcer after what was considered to be an "adequate" initial operation.
  • (7) Over the past decade the use of monoclonal antibodies has greatly advanced our knowledge of the biological properties and heterogeneity that exist within human tumours, and in particular in lung cancer.
  • (8) He had been extremely frustrated that indicators of economic recovery over the past few days had been drowned out by the clamour over the Labour leadership.
  • (9) We reviewed our experience with femorofemoral bypass during the past 10 years to define its role relative to other methods in the treatment of aortoiliac occlusive disease.
  • (10) Gallic wine sales in the UK have been tumbling for the past 20 years, but the news that France, once the largest exporter to these shores, has slipped behind Australia, the United States, Italy and now South Africa will have producers gnawing their knuckles in frustration.
  • (11) But not only did it post a larger loss than expected, Amazon also projected 7% to 18% revenue growth over the busiest shopping period of the year, a far cry from the 20%-plus pace that had convinced investors to overlook its persistent lack of profit in the past.
  • (12) I’m hopeful but I just can’t get over all my experiences in the past.
  • (13) Significant changes have occurred within the profession of pharmacy in the past few decades which have led to loss of function, social power and status.
  • (14) Eighty interposition mesocaval shunts, using a knitted Dacron large diameter prosthesis, have been performed during the past five and one-half years.
  • (15) Although they were praised in the last five years as the most efficient drugs against cancer and infectious diseases, no great success was clinically and experimentally reported in the past.
  • (16) Over the past 20 years the rag-and-bone trade has had a makeover.
  • (17) Cameron famously broke with the past, and highlighted his green credentials, by posing with huskies on a visit to Svalbard in the Norwegian Arctic in 2006.
  • (18) At first it looked as though the winger might have shown too much of the ball to the defence, yet he managed to gain a crucial last touch to nudge it past Phil Jones and into the path of Jerome, who slipped Chris Smalling’s attempt at a covering tackle and held off Michael Carrick’s challenge to place a shot past an exposed De Gea.
  • (19) They argue that the US, the world's largest producer of greenhouse gases per capita (China recently surpassed us in sheer volume), needs to lead the fight to limit carbon emissions, rather continuing to block global treaties as it has done in the past.
  • (20) Over the past decade, the quinolone antimicrobial class has enjoyed a renaissance with the emergence of the fluoroquinolone subclass.