What's the difference between signal and siren?

Signal


Definition:

  • (n.) A sign made for the purpose of giving notice to a person of some occurence, command, or danger; also, a sign, event, or watchword, which has been agreed upon as the occasion of concerted action.
  • (n.) A token; an indication; a foreshadowing; a sign.
  • (a.) Noticeable; distinguished from what is ordinary; eminent; remarkable; memorable; as, a signal exploit; a signal service; a signal act of benevolence.
  • (a.) Of or pertaining to signals, or the use of signals in conveying information; as, a signal flag or officer.
  • (v. t.) To communicate by signals; as, to signal orders.
  • (v. t.) To notify by a signals; to make a signal or signals to; as, to signal a fleet to anchor.

Example Sentences:

  • (1) Such a signal must be due to a small ferromagnetic crystal formed when the nerve is subjected to pressure, such as that due to mechanical injury.
  • (2) Glucocorticoids have numerous effects some of which are permissive; steroids are thus important not only for what they do, but also for what they permit or enable other hormones and signal molecules to do.
  • (3) Although solely nociresponsive neurons are clearly likely to fill a role in the processing and signalling of pain in the conscious central nervous system, the way in which such useful specificity could be conveyed by multireceptive neurons is difficult to appreciate.
  • (4) Theresa May signals support for UK-EU membership deal Read more Faull’s fix, largely accepted by Britain, also ties the hands of national governments.
  • (5) Type 1 changes (decreased signal intensity on T1-weighted spin-echo images and increased signal intensity on T2-weighted images) were identified in 20 patients (4%) and type 2 (increased signal intensity on T1-weighted images and isointense or slightly increased signal intensity on T2-weighted images) in 77 patients (16%).
  • (6) The presently available data allow us to draw the following conclusions: 1) G proteins play a mediatory role in the transmission of the signal(s) generated upon receptor occupancy that leads to the observed cytoskeletal changes.
  • (7) Thus, human bronchial epithelial cells can express the IL-8 gene, with expression in response to the inflammatory mediator TNF regulated mainly at the transcriptional level, and with elements within the 5'-flanking region of the gene that are directly or indirectly modulated by the TNF signal.
  • (8) The region containing the injection stop signal (iss) has been cloned and sequenced and found to contain numerous large repeats and inverted repeats which may be part of the iss.
  • (9) Here, we review the nature of the heart sound signal and the various signal-processing techniques that have been applied to PCG analysis.
  • (10) The present study was designed to test the hypothesis that the decreased Epi response following ET was due to 1) depletion of adrenal Epi content such that adrenomedullary stimulation would not release Epi, 2) decreased Epi release with direct stimulation, i.e., desensitization of release, or 3) decreased afferent signals generated by ET itself.
  • (11) In documents due to be published by the bank, it will signal a need to shed costs from a business that employs 10,000 people as it scrambles to return to profit.
  • (12) In fact, you might read it as a signal … that the president might well lose on this,” she said.
  • (13) Further study both of the signaling events that lead to MPF activation and of the substrates for phosphorylation by MPF should lead to a comprehensive understanding of the biochemistry of cell division.
  • (14) After several months, a temporal discrimination was well established, as shown by maximum suppression toward the end of the signal period.
  • (15) 2010 2 May : In a move that signals the start of the eurozone crisis, Greece is bailed out for the first time , after eurozone finance ministers agree to grant the country rescue loans worth €110bn (£84bn).
  • (16) Protein kinase C (PKC) is activated rapidly and transiently following ionizing radiation exposure and is postulated to activate downstream nuclear signal transducers.
  • (17) During that time they have repeatedly demonstrated the likely existence of signalling molecules or morphogens that control the pattern of development in the embryo.
  • (18) Recently, we have designed a series of simplified artificial signal sequences and have shown that a proline residue in the signal sequence plays an important role in the secretion of human lysozyme in yeast, presumably by altering the conformation of the signal sequence [Yamamoto, Y., Taniyama, Y., & Kikuchi, M. (1989) Biochemistry 28, 2728-2732].
  • (19) After calving, probably the position of new follicles is temporally influenced by direct signals from the uterine horns affected differently by pregnancy.
  • (20) The purpose of the present study was to investigate whether the signaling behaviors of female Long-Evans rats varies over the estrous cycle.

Siren


Definition:

  • (n.) One of three sea nymphs, -- or, according to some writers, of two, -- said to frequent an island near the coast of Italy, and to sing with such sweetness that they lured mariners to destruction.
  • (n.) An enticing, dangerous woman.
  • (n.) Something which is insidious or deceptive.
  • (n.) A mermaid.
  • (n.) Any long, slender amphibian of the genus Siren or family Sirenidae, destitute of hind legs and pelvis, and having permanent external gills as well as lungs. They inhabit the swamps, lagoons, and ditches of the Southern United States. The more common species (Siren lacertina) is dull lead-gray in color, and becames two feet long.
  • (n.) An instrument for producing musical tones and for ascertaining the number of sound waves or vibrations per second which produce a note of a given pitch. The sounds are produced by a perforated rotating disk or disks. A form with two disks operated by steam or highly compressed air is used sounding an alarm to vessels in fog.
  • (a.) Of or pertaining to a siren; bewitching, like a siren; fascinating; alluring; as, a siren song.

Example Sentences:

  • (1) Dictated by underlying physicochemical constraints, deceived at times by the lulling tones of the siren entropy, and constantly vulnerable to the vagaries of other more pervasive forms of biological networking and information transfer encoded in the genes of virus and invading microorganisms, protein biorecognition in higher life forms, and particularly in mammals, represents the finely tuned molecular avenues for the genome to transfer its information to the next generation.
  • (2) Emergency medical services providers routinely respond to emergencies using lights and siren.
  • (3) Every now and then some rich Oga or Madam comes along in their bulletproof cars and wailing sirens, and distorts the delicate equilibrium of this body of traffic.
  • (4) Off the south-west coast of Ibiza stands Es Vedrà, a 400m-high limestone rock which legend suggests was the island of the Sirens who lured sailors to their deaths in Homer's Odyssey.
  • (5) At 6pm it sounds like a war zone outside the office: you can hear nothing but sirens and the almost continuous drone of helicopters overhead.
  • (6) horns of cars, sirens of emergency vehicles and alarm signals of railroad crossings, and then displays them as vibration to the driver.
  • (7) The strange thing is, society is perhaps not quite in the same shape as most of the political elite - or for that matter, the siren voices who would have you believe that "everyone's middle class nowadays" - suggest.
  • (8) As dusk fell across the city a motorcade of flashing lights and sirens escorted him to the airport, where he thanked his hosts and organisers and the vice-president, Joe Biden, escorted him to the plane.
  • (9) Updated at 11.10pm GMT 10.29pm GMT @RanaGaza, on Twitter here , uploads audio of sirens in Gaza City and two strikes moments ago.
  • (10) IDF (@IDFSpokesperson) A few minutes ago, sirens in Tel Aviv sent residents running for shelter.
  • (11) As Operation Protective Edge launched, sirens sounded over large areas of Israel's south and air raid shelters were opened.
  • (12) They should ignore the siren voices about Ukip pacts, which would put the party back for years.
  • (13) Video by Chris Whitworth and Alex Purcell Victimhood is a real, brutal fact, and Ben Carson's Holocaust logic denies that | Gayatri Devi Read more Asked about abortion, another siren call to voters who dominate the Republican primary, Carson said he would appoint supreme court judges to overturn Roe v Wade , the 1973 decision that enshrines the right.
  • (14) They moved rapidly, but without lights or sirens; they were not heading into an emergency.
  • (15) In Trafalgar Square at 6.40pm, sirens could be heard from almost all directions.
  • (16) "I was here since 7am and just heard sirens and it was over so fast," said Daniel McKenzie from Darlington.
  • (17) Their faces stared up from the dusty stretch of tarmac outside New Cairo's police academy, a silent roll call of butchery laid out like a human carpet amid a cacophony of chants, sirens and camera clicks in the morning sun.
  • (18) The British Wind Energy Association said it was delighted that Miliband had "rightly ignored the siren calls to abandon wind as the driving force for reaching the [low carbon] targets".
  • (19) I’ve never seen so many police here, against the blare of sirens.
  • (20) Its rocket fire has caused fear and panic among Israelis in south and central Israel, with sirens sounding many times a day warning people to seek shelter.