What's the difference between historical and period?

Historical


Definition:

  • (a.) Of or pertaining to history, or the record of past events; as, an historical poem; the historic page.

Example Sentences:

  • (1) Single-case experimental designs are presented and discussed from several points of view: Historical antecedents, assessment of the dependent variable, internal and external validity and pre-experimental vs experimental single-case designs.
  • (2) Historical analysis shows that institutions and special education services spring from common, although not identical, societal and philosophical forces.
  • (3) David Cameron last night hit out at his fellow world leaders after the G8 dropped the promise to meet the historic aid commitments made at Gleneagles in 2005 from this year's summit communique.
  • (4) At its vanguard is the historic quarter of Barriera di Milano, which is being transformed by an influx of artists and galleries.
  • (5) On Friday, a spokesperson for China’s foreign ministry appeared to confirm those fears, telling reporters that the joint declaration, a deal negotiated by London and Beijing guaranteeing Hong Kong’s way of life for 50 years, “was a historical document that no longer had any practical significance”.
  • (6) When compared with a matched group of historical control subjects treated with RT alone, chemotherapy induced a higher rate of neurologic response and led to a longer survival time.
  • (7) This paper provides power formulae for historically controlled studies with survival time endpoints, and considers two designs.
  • (8) Historically, councils and housing associations have tended to build three-bedroom houses, because that has always been seen as a sensible size for a family home.
  • (9) This month, Ucas will bring out an interactive map of Gaza , with live updates, highlighting sports events and restaurants, as well as areas of historical interest.
  • (10) Historical reality suggests the concept of socially necessary risk determined through the dialectic process in democracy.
  • (11) The ANC has the historical responsibility to lead our nation and help build a united non-racial society."
  • (12) But we need politicians to break out of historical routines.
  • (13) The arrival on Monday was another first for the two countries since Barack Obama and Cuban President Raúl Castro announced a historic rapprochement in December 2014, and comes weeks after Obama’s visit to the Caribbean island.
  • (14) And that is why we have taken bold action at home – by making historic investments in renewable energy; by putting our people to work increasing efficiency in our homes and buildings; and by pursuing comprehensive legislation to transform to a clean energy economy.
  • (15) Sometimes it can seem as if the history of the City is the history of its crises and disasters, from the banking crisis of 1825 (which saw undercapitalised banks collapse – perhaps the closest historic parallel to the contemporary credit crunch), through the Spanish panic of 1835, the railway bust of 1837, the crash of Overend Gurney, the Kaffir boom, the Westralian boom, the Marconi scandal, and so on and on – a theme with endless variations.
  • (16) Historically, research into the regulation of gene expression in primate lentiviruses has focused on human immunodeficiency virus type 1 (HIV-1), the primary cause of acquired immunodeficiency syndrome (AIDS) in humans.
  • (17) The art Kennard produced formed the basis of his career, as he recounted later: “I studied as a painter, but after the events of 1968 I began to look for a form of expression that could bring art and politics together to a wider audience … I found that photography wasn’t as burdened with similar art historical associations.” The result was his STOP montage series.
  • (18) Long-standing providers preferred a categorical approach in order to maintain a diverse political coalition for an historically invisible service.
  • (19) Historically, what made SNL’s campaign coverage so necessary was its ability to highlight the subtle absurdities of the election and exaggerate the ridiculous.
  • (20) World leaders must reach a historic agreement to fight climate change and poverty at coming talks in Paris, facing the stark choice to either “improve or destroy the environment”, Pope Francis said in Africa on Thursday.

Period


Definition:

  • (n.) A portion of time as limited and determined by some recurring phenomenon, as by the completion of a revolution of one of the heavenly bodies; a division of time, as a series of years, months, or days, in which something is completed, and ready to recommence and go on in the same order; as, the period of the sun, or the earth, or a comet.
  • (n.) A stated and recurring interval of time; more generally, an interval of time specified or left indefinite; a certain series of years, months, days, or the like; a time; a cycle; an age; an epoch; as, the period of the Roman republic.
  • (n.) One of the great divisions of geological time; as, the Tertiary period; the Glacial period. See the Chart of Geology.
  • (n.) The termination or completion of a revolution, cycle, series of events, single event, or act; hence, a limit; a bound; an end; a conclusion.
  • (n.) A complete sentence, from one full stop to another; esp., a well-proportioned, harmonious sentence.
  • (n.) The punctuation point [.] that marks the end of a complete sentence, or of an abbreviated word.
  • (n.) One of several similar sets of figures or terms usually marked by points or commas placed at regular intervals, as in numeration, in the extraction of roots, and in circulating decimals.
  • (n.) The time of the exacerbation and remission of a disease, or of the paroxysm and intermission.
  • (n.) A complete musical sentence.
  • (v. t.) To put an end to.
  • (v. i.) To come to a period; to conclude. [Obs.] "You may period upon this, that," etc.

Example Sentences:

  • (1) Without medication atypical ventricular tachycardia develops, in the author's opinion, most probably when bradycardia has persisted for a prolonged period.
  • (2) Disease stabilisation was associated with prolonged periods of comparatively high plasma levels of drug, which appeared to be determined primarily by reduced drug clearance.
  • (3) Although the mean values for all hemodynamic variables between the two placebo periods were minimally changed, the differences in individual patients were striking.
  • (4) It was shown in experiments on four dogs by the conditioned method that the period of recovery of conditioned activity after one hour ether anaesthesia tested 7 to 7.5 days.
  • (5) Under blood preservation conditions the difference of the rates of ATP-production and -consumption is the most important factor for a high ATP-level over long periods.
  • (6) No significant change occurred in the bacterial population of our hospital unit during the period of the study (more than 3 years).
  • (7) The secondary leukemia that occurred in these patients could be distinguished from the secondary leukemia that occurs after treatment with alkylating agents by the following: a shorter latency period; a predominance of monocytic or myelomonocytic features; and frequent cytogenetic abnormalities involving 11q23.
  • (8) Sixteen patients in whom schizophrenia was initially diagnosed and who were treated with fluphenazine enanthate or decanoate developed severe depression for a short period after the injection.
  • (9) During the study period four family outbreaks and seven recurrences of infection were observed.
  • (10) After a period on fat-rich diet the patient's physical fitness was increased and the recovery period after the acute load was shorter.
  • (11) During this period he developed autoimmune haemolytic anaemia, a rare complication of myelofibrosis.
  • (12) Pituitary weight, mitotic index and chromosomes were studied in male rats following a single or repeated dose of estradiol-benzoate for a total period of 210 days.
  • (13) Most thyroid hormone actions, however, appear in the perinatal period, and infants with thyroid agenesis appear normal at birth and develop normally with prompt neonatal diagnosis and treatment.
  • (14) Maximal aberration yields were observed for 2,4-diaminotoluene, 2,6-diaminotoluene and cytosine beta-D-arabinofuranoside from 17 to 21 h, eugenol from 15 to 21 h, cadmium sulfate from 15 to 24 h and 2-aminobiphenyl, from 17 to 24 h. For adriamycin at 1 microM, the % aberrant cells remained elevated throughout the period from 9 to 29 h, while small increases at 0.1 microM ADR were found only at 13 and at 25 h. For most chemicals the maximal aberration yield occurred at a different time for each concentration tested.
  • (15) Accuracy of discrimination of letters at various preselected distances was determined each session while Ortho-rater examinations were given periodically throughout training.
  • (16) During electrophysiologic study, the effect of propafenone on the effective refractory period of the accessory pathway was determined, as well as its effect during orthodromic atrioventricular (AV) reentrant tachycardia and atrial fibrillation.
  • (17) Time-series analysis and multiple-regression modeling procedures were used to characterize changes in the overall incidence rate over the study period and to describe the contribution of additional measures to the dynamics of the incidence rates.
  • (18) 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.
  • (19) Anthropometric and nutritional (serum albumin and transferrin) values were normal in both groups both at the beginning and at the end of the treatment period.
  • (20) Analysis of conjugated discharges ACHs showed that they appeared predominantly periodically (87% of cases).