What's the difference between daylight and diurnal?

Daylight


Definition:

  • (n.) The light of day as opposed to the darkness of night; the light of the sun, as opposed to that of the moon or to artificial light.
  • (n.) The eyes.

Example Sentences:

  • (1) Nursing occupied about 210 min in 8 daylight hours for the infants at 10 weeks of age, and the time spent nursing decreased at the average rate of 9.4 min per week until the infants were about 6 months old.
  • (2) Plasma and IL peptide levels were relatively constant during daylight hours (0600-1800 h), but increased after the onset of darkness and reached maximal concentrations at 0200 h. To examine the possibility that this diurnal rhythm in the content and secretion of POMC-derived peptides resulted from diurnal changes in the biosynthesis of POMC, the concentration and rate of synthesis of POMC mRNA were examined.
  • (3) Pronounced diurnal cycles in gastric motility were observed in which the frequency and amplitude of gastric contractions were increased during the daylight and depressed during darkness.
  • (4) And they kept coming … the hilarious Octodad: Dadliest Catch , the chilling psychological horror game Daylight , which again, uses procedural generation to create new environments (procedural content is another next-gen theme); and Galak-Z from 17bit Studios, described as an AI and physics-driven open-world action game.
  • (5) On the day Fahmy met the Guardian, one of the committee's working groups had just decided to alter the "start date" of their enquiries – moving it from 14 January, the day the Tunisian president Zine al-Abidine Ben Ali was forced from office, back to June 2010 when the Alexandrian youth Khaled Said was killed in broad daylight by two police officers, an incident that mobilised many Egyptians against the Mubarak regime.
  • (6) By the 1990s, Dirie had become a supermodel, fronting Chanel campaigns and appeared in the James Bond film The Living Daylights .
  • (7) Annette Ramelsberger of the Süddeutsche Zeitung newspaper, who has attended every trial day so far, told German broadcaster DLF that she had been struck in particular by how unmoved Zschäpe was by the accounts given by the parents of 21-year-old Halit Yozgat, the owner of an internet cafe who was gunned down in broad daylight in Kassell on 6 April 2006.
  • (8) If there is justice for Mark some of this sadness will end.” The family’s solicitor, Cyrilia Davies Knight, from Birnberg Peirce solicitors, said: “There are serious questions about whether this highly trained police officer, who shot Mark in broad daylight from an unobstructed view a few metres away from him, made a mistake that was reasonable and lawful.” She added: “A death of this kind is the cause of uniquely intense public concern as demonstrated by the disturbances after Mark’s death.
  • (9) Upon standing in diffuse daylight, solutions of thyroxine showed increased ability to inhibit the enzyme, presumably as a result of oxidation of enzyme sulfhydryl groups by free iodine that is released photochemically.
  • (10) Feces from infected calves and lambs were placed on pasture plots and samples of upper herbage, lower herbage, mat and soil were collected at five intervals per day throughout the daylight hours on 18 sample days over 12 months.
  • (11) The ITV pictures showed him level when the ball was played, then the computer showed his leg was sticking out but, even if you accept it was accurate modelling, doesn't that mean he was level except a teeny weeny bit of him (what happened to the 'daylight' rule?).
  • (12) The light absorbance of the clarified HPA digestion product was measured directly, after a brief incubation period, and was stable to storage of samples in diffuse daylight for at least 2 d. Proteinase produced by growth in refrigerated whole milk of as few as 2.5 X 10(6) cfu ml-1 of Pseudomonas fluorescens AR11 was detected.
  • (13) Irradiation of methyl 5,8-epoxyretinoate in acetonitrile with a light from a high-pressure mercury lamp or a daylight fluorescent lamp afforded three new products, which were purified by high-performance liquid chromatography.
  • (14) 1st part of the animals received food in 2-h-period by natural daylight (natural lighting conditions), the 2nd part at the same period of time but in the dark (lighting conditions reversed to natural).
  • (15) 5.16pm GMT A line in the statement from Downing Street on David Cameron’s conversation with Vladimir Putin could indicate potential daylight between Putin and Yanukovych on the topic of the Ukrainian election schedule.
  • (16) Uniocular eye closure in bright daylight has been considered as evidence of a binocular vision anomaly.
  • (17) Daylight food intake was significantly increased, whereas night-time feeding was significantly decreased, as compared with the saline-control group.
  • (18) Wednesday’s leak to Sky could well have been an attempt to flush Abbott’s oppositionism out into the public domain, into daylight, where it’s unlikely to go down very well.
  • (19) They have done that, in broad daylight.” Law enforcement officers should also be asked whether the Dallas shootings will alter the way they patrol, Avent said.
  • (20) Two premature infants developed phototherapy-induced erythema, one associated with a second-degree burn, after exposure to fluorescent daylight bulbs inadvertently used without Plexiglass shields, thus allowing prolonged ultraviolet A (UVA) exposure.

Diurnal


Definition:

  • (a.) Relating to the daytime; belonging to the period of daylight, distinguished from the night; -- opposed to nocturnal; as, diurnal heat; diurnal hours.
  • (a.) Daily; recurring every day; performed in a day; going through its changes in a day; constituting the measure of a day; as, a diurnal fever; a diurnal task; diurnal aberration, or diurnal parallax; the diurnal revolution of the earth.
  • (a.) Opening during the day, and closing at night; -- said of flowers or leaves.
  • (a.) Active by day; -- applied especially to the eagles and hawks among raptorial birds, and to butterflies (Diurna) among insects.
  • (a.) A daybook; a journal.
  • (a.) A small volume containing the daily service for the "little hours," viz., prime, tierce, sext, nones, vespers, and compline.
  • (a.) A diurnal bird or insect.

Example Sentences:

  • (1) Four of 18 patients showed no change over the twenty-four hours while 7 patients showed some variation without definite diurnal pattern.
  • (2) The amount of EB or progesterone injected seemed unimportant but, in either case, had to be given within a limited diurnal period of sensitivity.
  • (3) Seven days of constant light, however, reverses this diurnal variation such that plasma prolactin levels peak at 11:30 AM and reach a nadir at approximately 11:30 PM.
  • (4) Study of the clinical characteristics of depressive state by hemisphere stroke with the use of symptom items of Zung scale and Hamilton scale showed that patients in depressive state with right hemisphere stroke had high values in symptom items considered close to the essence of endogenous depression such as depressed mood, suicide, diurnal variation, loss of weight, and paranoid symptoms, while patients in depressive state with left hemisphere stroke had high values in symptom items having a nuance of so-called neurotic depression such as psychic anxiety, hypochondriasis, and fatigue.
  • (5) Intraocular pressure was investigated with multiple 12-hour diurnal curves.
  • (6) The purpose of this study was to examine the pattern of diurnal variation of blood pressure in normotensive working women, and to assess the effect of work stress on this pattern.
  • (7) In order to clarify the diurnal pattern of secretion of plasma immunoreactive (IR) proopiomelanocortin (POMC)-derived peptides, IR-N-terminal peptide (Nt), IR-beta-endorphin (Ep), IR-beta-lipotropin (LPH), and IR-ACTH (ACTH) in normal subjects and in patients with Addison's disease and Cushing's disease, we measured these 4 peptides in the same plasma obtained at 0900 h and then every three hours until 0600 h at the next day.
  • (8) When administered to adult patients with urge incontinence (generally as a 25mg twice-daily dose) terodiline reduces diurnal and nocturnal micturition frequency and incontinence episodes.
  • (9) These findings would suggest that hereditary progressive dystonia with marked diurnal fluctuation could show not only a diurnal fluctuation but also age-dependent changes of symptoms.
  • (10) The diurnal rhythms of sleep-wake activity, motor activity, and Tbr were not affected in rats.
  • (11) No IgE circadian rhythm was validated in healthy children while a large amplitude (approximately equal to 30% of the 24 hours mean) circadian rhythm with 2 diurnal peaks and a nocturnal trough was demonstrated (P less than 0.0023) in the asthmatics.
  • (12) The degree of change was comparable during the diurnal and nocturnal periods.
  • (13) A diurnal pattern, however, could not be shown in the corticosterone response to immobilization.
  • (14) In one rat studied 30 days after ocular enucleation the diurnal rhythm in synthesis persisted; however, relative to 4 days after enucleation the phase of the rhythm shifted about 90 degrees suggesting that light deprivation caused the rhythm to become free-running with a period slightly different from 24 h.
  • (15) It has a relatively short half-life, and large diurnal fluctuations in serum concentrations occur, thus making it difficult to define clear relationships between individual serum concentrations and either therapeutic or adverse effects.
  • (16) Vocalizations exhibited diurnal peaks of occurrence (0600-0800, 1600-1800 h).
  • (17) The syndrome of obstructive sleep apnoea is associated with an increased morbidity (the consequence of diurnal hypersomnolence and cardiovascular complications).
  • (18) 1) Diurnal patterns of the above-mentioned items were recorded, mutual relationships relationships between these items were revealed.
  • (19) Plasma and IL peptide levels were relatively constant during daylight hours (0600-1800 h), but increased after the onset of darkness and reached maximal concentrations at 0200 h. To examine the possibility that this diurnal rhythm in the content and secretion of POMC-derived peptides resulted from diurnal changes in the biosynthesis of POMC, the concentration and rate of synthesis of POMC mRNA were examined.
  • (20) The diurnal variation of [125I]iodomelatonin binding sites in the brain and serum melatonin levels were studied at 4-hour intervals under a 12 h:12 h light:dark cycle in 5-week-old chicks.