Unreferenced date December 2007 The interstimulus interval is the temporal interval between the offset of one stimulus physiology stimulus to the onset of another. For instance, Max Wertheimer did experiments with two stationary, flashing lights that at some interstimulus intervals appeared to the subject as moving instead of stationary. In these experiments, the ISI is simply the time between the two flashes. The term interstimulus intervals is also relevant for classical conditioning , usually denoting the time between the unconditioned stimulus food and the conditioned stimulus bell or whistle . It is particularly relevant in Eyeblink conditioning , in which it has been found that the interstimulus interval is a major factor in creating an optimal learning paradigm. Category Perception Category Psychophysics cognitive psych stub ... more details
In music , an interval cycle is a set music collection of pitch class es created from a sequence of the same interval class . ref name Whittall Whittall, Arnold. 2008. The Cambridge Introduction to Serialism ... a collection of pitch music pitches by starting with a certain note and going up by a certain interval music interval until the original note is reached e.g. starting from C, going up by 3 semitones ... . In other words, interval cycles unfold a single recurrent interval in a series that closes with a return to the initial pitch class . Interval cycles are notated by George Perle using the letter C for cycle , with an interval class integer to distinguish the interval. Thus the diminished ... in the cycle. These interval cycles play a fundamental role in the harmonic organization of post ... 0 520 06991 9. ref Here are interval cycles C1, C2, C3, C4 and C6 Image Interval cycles C1 C4 and C6.PNG 400px Interval cycles C1&ndash C4 and C6 Image Twelve tone interval cycles.png thumb right Twelve tone interval cycles ref name Whittall complete the tone row total chromatic aggregate C1 once top or C6 six times bottom . Interval cycles assume the use of equal temperament and may not work in other systems such as just intonation . For example, if the C4 interval cycle used justly tuned major third s it would fall flat of an octave return by an interval known as the diesis . Put another way ... such as equal temperament, in which the diesis has been tempered out. Interval cycles are symmetrical ... also known as a generated collection . A minimum of three pitches are needed to represent an interval ... succession progressions signal the end of tonality . ref name Listening Interval cycles are also ..., George 1996 . Twelve Tone Tonality , p.7. ISBN 0 520 20142 6. ref Thus an interval cycle or pair of cycles may be reducible to a representation of the chromatic scale. As such, interval cycles may be differentiated ... cycles of a single interval music interval , ref Perle 1996 , p.21. ref that is an ascending ... more details
Image Set of curves Outer approximation.png 345px thumb right Tolerance function turquoise and interval valued approximation red Interval arithmetic , interval mathematics , interval analysis , or interval ... using standard arithmetic as 2.0 meters, using interval arithmetic we might be certain that that person ... numbers, interval arithmetic defines a set of operations on interval mathematics interval s T S x there is some y in T , and some z in S , such that x y z . The basic operations of interval ... ÷ d when 0 is not in c , d . Division by an interval containing zero is not defined under the basic interval arithmetic. The addition and multiplication operations are commutative , associative ... number real math x math we work with the two ends of the interval math a,b math which contains math ... math f math when applied to math x math is also uncertain. Instead, in interval arithmetic math f math produces an interval math c,d math which is all the possible values for math f x math for all ... measurement errors and tolerances for components or due to limits on computational accuracy. Interval .... Introduction The main focus in the interval arithmetic is on the simplest way to calculate upper ... interval, while with both infinite we would have the extended real number line. As with traditional ... elements. ref name Kulisch Example Image Interval BMI Simple Example.png 350px thumb left ... that are greater than or equal to 79.5, while less than or equal to 80.5, or in other words the interval ... to have significant influence. Interval arithmetic states the range of possible outcomes explicitly ... the calculation of outer limits of intervals. Simple arithmetic Image Interval BMI Example.png ... possible intermediate values must be considered. Using the interval arithmetic methods described below, the BMI lies in the interval math 79 . 5 80 . 5 1 . 795 1 . 805 2 24 . 4 25 . 0 . math An operation ... math 1 y 1, y 2 1 y 2, 1 y 1 math if math 0 notin y 1, y 2 math . For division by an interval ... more details
Image Half time rock pattern.png thumb right 350px Half time music Half time drum pattern the first and second bar music measures have identical interonset intervals audio Half time rock pattern.mid Play and will sound identical given certain instrumentation music instrumentation and performance practice s. In music the interonset interval or IOI is the time between the beginnings or ADSR envelope ADSR envelope attack point s of successive events or note s, the interval between Onset audio onset s, not including the Duration music duration of the events. ref name London London, Justin 2004 . Hearing in Time Psychological Aspects of Musical Meter , p.4. ISBN 0 19 516081 9. ref For example, two sixteenth note s separated by dotted eighth rest music rest would have the same interonset interval as between a quarter note and a sixteenth note. The concept is often useful for considering rhythm s and metre music meters . ref name London Source reflist Further reading Oxford, Parncutt and Mc Pherson ed. 2002 . The Science and Psychology of Music Performance , p. 200 202. ISBN 0 19 513810 4 External links http www.music.indiana.edu som courses rhythm illustrations interonset interval ioi .html Rhythm and Meter Bibliography and Glossary at the School of Music at Indiana University DEFAULTSORT Interonset Interval Category Rhythm ... more details
sets and their common interval vector, 212320. In musical set theory , an interval vector also called an interval class vector or ic vector is an array that expresses the interval music intervallic content of a pitch class set music set . Often referred to as a PIC vector or pitch class interval vector , Schuijer suggests that APIC vector or absolute pitch class interval vector is more accurate ... of times an interval class appears in the set. Interval classes, not regular intervals, must be used, in order that the interval vector remains the same, regardless of the set s permutation music permutation or vertical arrangement. The interval classes represented by each digit ascend from left ... related to itself. Interval class 0 representing unisons and octaves is omitted. The concept ... equal division of the octave was introduced by Allen Forte . A scale whose interval vector contains ... have this property. For a practical example, the interval vector for a C major triad in the root ... to E , and one perfect fifth or perfect fourth i.e. from C to G, or G to C . As the interval vector ... is the vector of all major and minor triads. It should, however, be noted that some interval vectors ... in the set s interval vector equals x x 1 2. While primarily an analytic tool, interval vectors ..., such as register, an interval vector, nevertheless, can be a helpful tool. An expanded form of the interval ... the same intervallic content i.e. they have the same interval vector , but they are of different T sub ... 99 For example, the two sets 0,1,4,6 and 0,1,3,7 have the same interval vector 1,1,1,1,1,1 but they are not transpositionally ... interval content. ref Straus 1990 . Introduction to Post Tonal Theory , 67. ISBN 0 13 189890 ... multiplication by 5 or multiplication by 7 , due to identical entries for 1 and 5 on the interval vector. ref name Schuijer See also Pitch interval Set theory music Further reading Rahn, John 1980 ... Set classes and interval class content http www.robertkelleyphd.com atnltrms.htm Introduction to Post ... more details
In computer science , an interval tree is an ordered tree data structure ordered tree data structure to hold Interval mathematics intervals . Specifically, it allows one to efficiently find all intervals that overlap with any given interval or point. It is often used for windowing queries, for example ... is to visit each interval and test whether it intersects the given point or interval, which ... intervals, for example if the query is a large interval intersecting all intervals in the collection ... s, where the runtime is expressed in terms of m , the number of intervals produced by the query. Interval ... point of each interval. This allows discarding half of each tree in O log n time, but the results ... than brute force. Interval trees solve this problem. This article describes two alternative designs for an interval tree, dubbed the centered interval tree and the augmented tree . Centered interval ... that we can efficiently retrieve all intervals overlapping another interval or point. We start by taking ... to the node in the interval tree. This data structure consists of two lists, one containing all .... With an Interval First, we can reduce the case where an interval R is given as input to the simpler ... inside the input interval R using a separately constructed tree. In the one dimensional case, we can use a simple tree containing all the beginning and ending points in the interval set, each with a pointer to its corresponding interval. A binary search in O log n time for the beginning and end of R reveals the minimum and maximum points to consider. Each point within this range references an interval ..., since an interval might both begin and end within R . This can be done using a binary flag on each interval to mark whether or not it has been added to the result set. The only intervals not yet considered ... been constructed. Since we only care about the interval beginnings in this scenario, we can consult ... intervals that end after x using the list sorted by interval endings. If x exactly matches x center ... more details
orphan date March 2009 Interbeat interval is a scientific term used in the study of the mammalian heart . Definition Interbeat interval is a scientific term used in reference to the time interval between individual beats of the mammalian heart . Interbeat interval is abbreviated IBI and is sometimes written with a hyphen, inter beat interval. It is also sometimes referred to as beat to beat interval. IBI is generally measured in units of milliseconds. Individual human heart IBI values can vary from as short as 5 milliseconds to as long as 70 milliseconds. In normal heart function, each IBI value varies from beat to beat. This natural variation is known as heart rate variability HRV . However, certain cardiac conditions may cause the individual IBI values to become nearly constant, resulting in the HRV being nearly zero. This can happen, for example, during periods of exercise as the heart rate increases and the beats become regular. Certain illnesses can cause the heart rate to increase and become uniform as well, such as when a subject is afflicted by an infection. IBI recording A number of instruments have been developed for specifically recording individual IBI values. Generally, the instruments are used in basic cardiology research, as there is yet no specific condition whose IBI statistics can be used to diagnose the condition or guide treatment for the condition. However, HRV is an active field of research and IBI analysis can yield a rich amount of data that hold promise for future medical applications. See also Heart rate variability HRV Circulatory system References Malik M. and Camm, A. Heart Rate Variability , Futura Publishing Company, 1995. External links http circ.ahajournals.org cgi content full 93 5 1043 Heart Rate Variability General Reference http www.camntech.co.uk CamNtech, manufacturer of IBI recording monitors http www.metrisense.com Distributor of IBI recording monitors Category Heart ... more details
merge line element discuss Talk invariant interval Merger proposal date December 2010 In physics, the invariant interval is the measure of separation between two arbitrarily close Event relativity events in the spacetime of general relativity general or special relativity special theory of relativity. It is invariant under the coordinate transformations from the covariance group of the theory. That is, in special relativity it is invariant under Lorentz transformation s in general relativity it is invariant under arbitrary invertible differentiable coordinate transformations. The invariant interval is usually denoted as math ds math and is given in terms of the metric tensor math g ab math as math ds 2 g ab dx adx b , math where math dx a math is the coordinate differential between the two events. See also Spacetime Spacetime intervals Metric space Category Special relativity Category General relativity ... more details
About the album the medical sign that occurs in traumatic brain injury lucid interval Infobox album See Wikipedia WikiProject Albums Name Lucid Interval Type studio Longtype Artist Cephalic Carnage Cover Cephalic Carnage Lucid Interval.jpg Released August 20, 2002 Recorded Genre Deathgrind Length 57 39 Label Relapse Records Relapse Producer Cephalic Carnage, Dave Otero Last album Exploiting Dysfunction br 2000 This album Lucid Interval br 2002 Next album Anomalies album Anomalies br 2005 Misc Extra album cover Upper caption Alternative cover Type studio Cover Cephalic Carnage Lucid Interval alternate.jpg Lower caption 2011 reissue cover Album ratings rev1 Allmusic rev1Score Rating 3 5 ref Allmusic class album id r605656 pure url yes allmusic.com Lucid Interval ref rev2 Exclaim rev2Score ref http exclaim.ca musicreviews generalreview.aspx?csid2 846&fid1 12433&csid1 37 exclaim.ca Lucid Interval ref rev3 Pitchfork Media rev3Score 8.1 10 ref http pitchfork.com reviews albums 1380 lucid interval pitchfork.com Lucid Interval ref rev4 Stylus Magazine rev4Score B ref http www.stylusmagazine.com reviews cephalic carnage lucid interval.htm stylusmagazine.com Lucid Interval ref noprose yes Lucid Interval is the third full length album released by Cephalic Carnage . It was released in 2002 via Relapse Records . The album is being reissued with a bonus track on September 13, 2011. Track listing tracklist title1 Scolopendra Cingulata length1 1 35 title2 Fortuitous Oddity length2 0 44 title3 Anthro Emesis length3 6 21 title4 The Isle of California length4 1 21 title5 Pseudo length5 5 56 title6 Friend of Mine length6 0 08 title7 Rebellion length7 3 56 title8 Zuno Gyakusatsu length8 0 53 title9 Black Metal Sabbath length9 6 15 title10 Cannabism length10 0 45 title11 Lucid Interval length11 4 11 title12 Misguided length12 0 56 note13 bonus track on reissue title13 Puff de la Morte length13 ... 2002 albums Category Cephalic Carnage albums Category Relapse Records albums pl Lucid Interval ... more details
In topology , the split interval is a topological space space that results from splitting each point in a closed interval into two adjacent points. It may be defined as the lexicographical order lexicographic product 0, 1 0, 1 with the order topology . It is also known as the Alexandrov double arrow space or two arrows space . The split interval is compact Hausdorff space compact Hausdorff , and it is hereditarily Lindel f space hereditarily Lindel f and hereditarily separable space hereditarily separable , but it is not metrizable space metrizable its metrizable subspaces are all countable. All compact, separable ordered spaces are order isomorphic to a subset of the split interval. ref Citation last Ostaszewski first A. J. date February 1974 title A Characterization of Compact, Separable, Ordered Spaces journal Journal of the London Mathematical Society volume s2 7 issue 4 pages 758 760 doi 10.1112 jlms s2 7.4.758 ref References Reflist Further reading Refbegin Citation last Todorcevic first Stevo date 6 July 1999 title Compact subsets of the first Baire class journal Journal of the London Mathematical Society volume 12 issue 4 pages 1179 1212 doi 10.1090 S0894 0347 99 00312 4 Refend Category Topological spaces topology stub ... more details
Criccio , Don Busath , and Duane Sauro , Interval developed a passionate interest in photography ... person with that degree between Pittsburgh and Erie, Pennsylvania . ref Interval named ... from the American Society of Photographers ASP . Interval s work mirrors his philosophy that the manipulation ... for the ASP. Although not on display yet, several examples of Interval s work including some of his .... While Interval devoted most of his career to portrait and wedding photography , he did some ... , Triangle Photographers Association , and Photographic Society of America PSA , Interval ... Art. Interval s lectures and classes covered the mechanics and aesthetics of portraiture, indoor ... , and sales . The later years Interval s passion for photography remained strong throughout his ... Interval website http www.jerryinterval.com reference psy.html The Psychological Approach to Photographic ... Reflist Persondata Metadata see Wikipedia Persondata . NAME Interval, Jerry ALTERNATIVE NAMES ... OF DEATH DEFAULTSORT Interval, Jerry Category 1923 births Category 2006 deaths Category People ... more details
About the confidence interval Confidence distribution Confidence Distribution In statistics , a confidence interval CI is a particular kind of interval estimation interval estimate of a population parameter and is used to indicate the reliability of an estimate. It is an observed interval i.e. it is calculated ... the parameter of interest, if the experiment is repeated. How frequently the observed interval ... interval with a particular confidence level is intended to give the assurance that, if the statistical ... the interval would deliver a confidence interval that included the true value of the parameter ... interval does not predict that the true value of the parameter has a particular probability of being in the confidence interval given the data actually obtained. An interval intended to have such a property, called a credible interval , can be estimated using Bayesian statistics Bayesian ... Introduction Interval estimate s can be contrasted with point estimate s. A point estimate is a single ... of some quantity. An interval estimate specifies instead a range within which the parameter is estimated ... of the same parameters, to show the reliability of the estimates. For example, a confidence interval ... interval for the proportion in the whole population having the same intention on the survey date might be 38 to 42 . From the same data one may calculate a 95 confidence interval, which might in this case be 36 to 44 . A major factor determining the length of a confidence interval is the Sample size ... the confidence interval for contains 0. More generally, given the availability of a hypothesis ... that sub 0 sub for any value of sub 0 sub , then a confidence interval with confidence ... Confidence region s generalize the confidence interval concept to deal with multiple quantities. Such regions ... to be estimated, and , representing quantities not of immediate interest. A confidence interval for the parameter , with confidence level or confidence coefficient , is an interval with random ... more details
Infobox Anatomy Name Triangular interval Latin GraySubject GrayPage Image Triangular interval.PNG Caption Suprascapular and axillary nerves of right side, seen from behind. Triangular interval is labeled. Image2 Gray524.png Caption2 The scapular and circumflex arteries. Triangular interval is visible but not labeled. Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre DorlandsSuf The triangular interval also known as the lateral triangular space ref http iris3.med.tufts.edu dentgross labguide Shoulder4.html Photo at tufts.edu ref and lower triangular space ref name isbn0 7817 5309 0 cite book author Kyung Won, PhD. Chung title Gross Anatomy Board Review publisher Lippincott Williams & Wilkins location Hagerstown, MD year 2005 pages 34 isbn 0 7817 5309 0 oclc doi ref is a space found in the axilla . Borders Two of its borders are as follows teres major superior long head of the triceps brachii medial Some sources state the lateral border is the humerus , ref cite book author Adam Mitchell Drake, Richard Gray, Henry David Wayne Vogl title Gray s anatomy for students publisher Elsevier Churchill Livingstone location year 2005 pages 650 isbn 0 443 06612 4 oclc doi ref ref name title cite web url http anatomy.uams.edu anatomyhtml topogr back.html title uams.edu accessdate ... brachii artery pass through the triangular interval, on their way to the posterior compartment ..., and the Triceps brachii. gallery Triangular Interval Syndrome Triangular Interval Syndrome TIS was described .... Triangular Interval Syndrome. A differential diagnosis for upper extremity radicular pain. Physiother ... interval resulting in upper extremity radicular pain. The radial nerve and profunda brachii pass through the triangular interval and are hence vulnerable. The triangular interval has a potential ... interval with resultant entrapment of the radial nerve. ref McClelland D, Paxinos A. The anatomy ... interval secondary to hypertrophy. The presence of a fibrous arch in the long head and lateral ... more details
The lunitidal interval , ref http www.hydro.gov.au prodserv tides lunitidal intervals.htm Australian Hydrographic Service definition ref measures the time lag from the moon passing overhead, to the next high or low tide . It is also called the high water interval HWI ref http tidesandcurrents.noaa.gov datum options.html NOAA HWI definition ref ref http www.pol.ac.uk ntslf sharing knowledge.php Proudman Oceanographic laboratory definition ref Tides are known to be mainly caused by the moon s gravity. Theoretically, peak tidal forces at a given location occur when the moon is at the Meridian astronomy meridian , but there is usually a delay before high tide that depends largely on the shape of the coastline, and the sea floor, therefore, the lunitidal interval varies from place to place. The lunitidal interval further varies within about 30 minutes according to the lunar phase. The approximate lunitidal interval can be calculated if the moon rise, moon set and high tide times are known for a location. In the northern hemisphere, the moon is at its highest point when it is southernmost in the sky. Lunar data are available from printed tables and online ref http www.timeanddate.com Time And Date ref . Tide tables tell the time of the next high water ref http www.pol.ac.uk ntslf tidalp.html UK Tidal Predictions ref ref http tidesandcurrents.noaa.gov tide predictions.shtml NOAA Tides & Currents ref . The difference between these two times is the lunitidal interval. This value can be used to calibrate certain clocks and wristwatches to allow for simple but crude tidal predictions. See also Phase waves References reflist 2 External links http co ops.nos.noaa.gov station retrieve.shtml?type Datums&sort A.STATION ID&state &id1 HWI Datum table for locations in the US http www.pol.ac.uk ntslf sharing knowledge.php HWI table for UK http www.shom.fr fr page fr act oceano img etablissement ... for the Netherlands physical oceanography DEFAULTSORT Lunitidal Interval Category Physical oceanography ... more details
, segments, and intervals labeled. In cardiology , the QT interval is a measure of the time between ... electrical cycle . In general, the QT interval represents electrical depolarization and repolarization of the left and right ventricles. A shortened QT interval is a biomarker for ventricular ... rate The QT interval is dependent on the heart rate in an obvious way the faster the heart rate the shorter the QT interval and may be adjusted to improve the detection of patients at increased risk ... QT interval QTc . Bazett s formula is as follows big big QTcB frac QT RR big big where QTc is the QT interval corrected for heart rate, and RR is the interval from the onset of one QRS complex to the onset ... A, Larson MG, Goldberg RJ, Bengston JR, Levy D title An improved method for adjusting the QT interval ... RR big big File QT interval corrected for heart rate.png thumb 400px Upper limit of normal QT interval ... to be equal to or below 0.38s. ref name Yanowitz Measurement The QT interval is an important ECG ... the required standards for precision, the measurement of QT interval is subjective. ref name subjective ... with the baseline. QT interval in an ECG complex can be measured manually by different methods ... D, Lokhandwala Y title Intra and interreader variability in QT interval measurement by tangent ... and the QT interval is measured either from the earliest onset of the Q wave to the latest offset ... V, Ramasamy A, de Vries M, Zumbrunnen T, Kothari S, Narula D title Comparison of 5 methods of QT interval ... prolonged QT interval could be due to Long QT syndrome , whereas an abnormal shortened QT interval could be due to Short QT syndrome . The length of the interval was found to associate with variations ... ng1790 ref Due to adverse drug reactions Prolongation of the QT interval may be due to an adverse ... Calculate the QT interval in patients taking drugs for dementia journal BMJ volume 335 issue 7619 pages ... interval. Some antiarrhythmic drugs, like amiodarone or sotalol work by getting a pharmacological QT ... more details
italic title File MountainInterval.jpg thumb right 2nd edition publ. Henry Holt publisher Henry Holt , 1921 Mountain Interval is a 1916 in literature 1916 poetry collection written by Robert Frost . Frost made several alterations in the sequencing of the collection and released the new edition in 1920 in literature 1920 . Poems included The Road Not Taken poem The Road Not Taken Christmas Trees poem Christmas Trees An Old Man s Winter Night The Exposed Nest I d Like a Glass of Milk A Patch of Old Snow In the Home Stretch The Telephone Machine Meeting and Passing The E Chord Hyla Brook The Oven Bird Where s my hat? Bond and Free Birches I am dead The Bin Cellar Pea Brush Putting in the Seed A Time to Talk The Cow in Apple Time The Encounter Range Finding The Hill Wife The Bonfire A Girl s Garden Locked Out The Last Word of a Bluebird Out, Out Brown s Descent The Gum Gatherer The Line Gang The Vanishing Red Snow The Sound of Trees See also 1916 in poetry External links http bookdome.com poems Mountain Interval index.html Frost, Robert. Mountain Interval 1916 , Henry Holt And Company wikisource Robert Frost Category 1916 books Category 1920 books Category American poetry collections poetry collection stub ... more details
Image Septimal major second on C.png thumb right 7 limit 8 7 septimal whole tone audio Septimal major second on C.mid Play 8 7 audio Two secors on C.mid Play two secors . In music , a secor is the interval music interval of 116.7 cents Audio Secor on C.mid Play named after George Secor , discoverer of miracle temperament . It is approximated in 31 equal temperament 31 Audio 3 steps in 31 et on C.mid Play , 41 equal temperament 41 Audio 4 steps in 41 et on C.mid Play , and 72 equal temperament Audio 7 steps in 72 et on C.mid Play . For tuning purposes, a secor of seven steps of 72 equal temperament is often used. Two secors 233.4 Audio Two secors on C.mid Play approximate an 8 7 interval 231.17 , a septimal whole tone . Three of these 8 7 intervals 693.51 , or six secors 700.2 Audio Six secors on C.mid Play , approximate a fifth 701.96 . A neutral third of 11 9 347.41 is approximated by three secors 350.1 Audio Three secors on C.mid Play . Miracle temperament, particularly in the distributionally even scale known as Blackjack , a scale of twenty one notes derived from twenty successive secors, has been used by several composers, including New York composer Joseph Pehrson . External links http tonalsoft.com enc s secor.aspx Intervals state expanded Category Commas music theory stub ... more details
interval is an estimate of an interval in which future observations will fall, with a certain ... a prediction interval bears the same relationship to a future observation that a frequentist confidence interval or Bayesian credible interval bears to an unobservable population parameter prediction ... sub n 1 sub . Alternatively, in Bayesian statistics Bayesian terms , a prediction interval can be described as a credible interval for the variable itself, rather than for a parameter of the distribution ... sub 1 sub , as a 50 prediction interval for X sub 2 sub . Similarly, 50 of the time it will be smaller, which yields another 50 prediction interval for X sub 2 sub , namely &minus , X sub 1 ... maximum and minimum by M and m, this yields an n &minus 1 n 1 prediction interval ... interval 90 of the time, the 20th observation falls between the smallest and largest observation seen heretofore. Likewise, n 39 gives a 95 prediction interval, and n 199 gives a 99 prediction interval. One can visualize this by drawing the n samples on a line, which ... a k n 1 prediction interval or set, if the sections are not consecutive . For instance ... to given prediction intervals in the frequentist sense, i.e., an interval a , b based on statistics of the sample such that on repeated experiments, X sub n 1 sub falls in the interval the desired percentage of the time one may call these predictive confidence interval s . ref Harv Geisser ... observation X sub n 1 sub falling in some interval computed in terms of the observed values ... wikitable align right Prediction br interval Standard br score z ref name MedicalStatisticsA2 Page ... ref 50 0.67 90 1.64 95 1.96 99 2.58 Lower limit of prediction interval &minus z Upper limit of prediction interval z This is conventionally written as math begin align & left mu sigma z, mu ... distribution with mean 0 and variance sup 2 sup 1. The prediction interval for any standard ... more details
Interval scheduling is a class of problems in computer science , particularly in the area of algorithm design. A list of tasks is given as a set of time intervals for instance, one task might run from 2 00 to 5 00 and another task might run from 6 00 to 8 00. Posed as an optimization problem, the goal is to maximize the number of executed tasks without overlapping the tasks. A request corresponds to an interval of time. We say that a subset of requests is compatible if no two of them overlap in time and our goal is to accept as large a compatible subset as possible. A compatible set of maximum size is called optimal. There are several solutions for this problem that are not optimal. For example, selecting the intervals that start earliest is not an optimal solution because if the earliest interval happens to be really long by accepting it we would have to reject many other shorter requests. Selecting the shortest intervals or selecting intervals with the fewest conflicts is also not optimal. The optimal solution is choosing the earliest finishing time, as in the request that finishes first. One way of proving the optimality of this algorithm is by using the Charging Argument . An important class of scheduling algorithms is the class of dynamic priority algorithms. When none of the intervals overlap the optimum solution is trivial. The optimum for the non weighted version can found with the earliest deadline first scheduling . Weighted interval scheduling is a generalization where a value is assigned to each executed task and the goal is to maximize the total value. The solution need not be unique. See also Scheduling computing Earliest deadline first scheduling Sources cite book first Jon last Kleinberg coauthors Tardos, Eva title Algorithm Design year 2006 isbn 0 321 29535 8 Category Scheduling algorithms ... more details
, this interval is from G music to E music b . The eleven perfect fifths sound almost perfectly ... equivalent to a perfect fifth, this anomalous interval has come to be called the wolf fifth ... fifth. By extension, any interval which is perceived as severely dissonant and may be regarded as howling like a wolf may be called a wolf interval . For instance, in quarter comma meantone ... Just intonation justly tuned interval see Quarter comma meantone Size of intervals Size of 1 .... If the diminished sixth is a wolf interval, this triad is called the wolf major triad . Similarly ... cents, i.e. 20 cents sharper than the 3 2 Pythagorean perfect fifth . Whether this interval should ... adopted standard naming convention for Interval music musical intervals classifies them as perfect ... interval depending on the size of the meantone fifth it can be made to be exactly 20 13 or 17 11, or less commonly to 32 21 or 49 32. References reflist Intervals state expanded DEFAULTSORT Wolf Interval Category Intervals cs Vl interval da Ulvekvint de Wolfsquinte es Quinta del lobo eo Lupokvinto ... more details
An interval signal , or tuning signal , is a characteristic sound or musical phrase used in international broadcasting and by some domestic broadcasters. Played before commencement or during breaks in transmission, or most commonly between programmes in different languages it serves several purposes It assists a listener to tune his or her radio to the correct frequency for the station. It informs other stations that the frequency is in use. It serves as a station identifier even if the language used in the subsequent broadcast is not one the listener understands. The practice began in Europe in the 1920s and 1930s and was carried over into shortwave broadcasts. The use of interval signals has declined with the advent of digital tuning systems, but has not vanished. Broadcasting services and interval signals BBC World Service in English St Mary le Bow Bow Bells . BBC World Service in English occasionally Lillibullero ref http soundcloud.com stephen cooper bbc world service 12095khz BBC World Service Sweden interval signal Retrieved 2012 02 15. ref . BBC World Service, non English, non Europe three even notes tuned B B C. BBC World Service, non English, to Europe four notes tuned B B B E, spaced to spell out V in morse code . China Radio International chime version of March of the Volunteers . Deutsche Welle Radio chimes from Beethoven s Fidelio . International Radio of Serbia Radio Serbia national anthem Bo e pravde . Radio Australia chorus of Waltzing Matilda on chimes. Radio ... www.andromeda.se Radio Sweden interval signal Retrieved 2011 11 24. ref Vatican Radio uses the chimes ... s Pictures at an Exhibition . Numbers stations interval signals Numbers stations are often named after their interval signals, such as Lincolnshire Poacher numbers station The Lincolnshire Poacher ... References references External links http www.intervalsignals.net Interval Signals Online http www.asahi net.or.jp RP4N KWMR bcl index.html Nobuyuki Kawamura s Interval Signal Library http www.trsc.com ... more details
about the medical sign the music album Lucid Interval In emergency medicine , a lucid interval is a temporary improvement in a patient s condition after a traumatic brain injury , after which the condition deteriorates. A lucid interval is especially indicative of an epidural hematoma . An estimated 20 to 50 of patients with epidural hematoma experience such a lucid interval. ref name Kushner98 cite journal author Kushner D title Mild Traumatic Brain Injury Toward Understanding Manifestations and Treatment journal Archives of Internal Medicine volume 158 issue 15 pages 1617 1624 year 1998 pmid 9701095 doi 10.1001 archinte.158.15.1617 url http archinte.highwire.org cgi content full 158 15 1617 ref ref name pmid11578022 cite journal author Kushner DS title Concussion in Sports Minimizing the Risk for Complications journal American Family Physician volume 64 issue 6 pages 1007 14 year 2001 pmid 11578022 url http www.aafp.org afp 20010915 1007.html doi ref Indications The lucid interval occurs after the patient is knocked out by the initial concussive force of the trauma, then lapses into unconsciousness again after recovery when bleeding causes the hematoma to expand past the extent to which the body can compensate for. ref name Valadka04 cite book author Valadka AB chapter Injury to the cranium editor Moore EJ, Feliciano DV, Mattox KL title Trauma publisher McGraw Hill, Medical Pub. Division location New York year 2004 pages 385 406 isbn 0 07 137069 2 accessdate 2008 08 15 url http books.google.com ?id VgizxQg 8QQC&pg PA545&dq tracheobronchial ref After the injury, the patient ... a lucid interval, any significant traumatic brain injury head trauma is regarded as a medical emergency ... dramatically, may follow a lucid interval that occurs after a minor head trauma. ref cite journal last ... mode 3Dgeo browse&recnum 1041 Medpix.com discussion of lucid interval . Retrieved on February 6, 2007. Category Neurotrauma Category Medical signs cs Lucidn interval de Lucidum intervallum pl ... more details
Orphan date February 2012 no footnotes date November 2010 Interval Monday is a jazz jam session that takes place every Monday at Ava Lounge in East Liberty Pittsburgh East Liberty , Pittsburgh . The jam session was founded by Howie Alexander piano, keyboard July 9, 2007, and is now known as a premier place for jazz music in Pittsburgh due to the local and nationally recognized talent it attracts, as well as the increasingly large audience. The first set belongs to the Interval Trio and the second set opens up to musicians who sit in, among them Sean Jones first trumpet with the Lincoln Center Jazz Orchestra , three time winner of Downbeat Magazine s rising star award, Dr. Nelson E. Harrison veteran trombonist of the Count Basie Orchestra featuring Joe Williams , Sarah Vaughan , Helen Humes , Joe Turner , Eddie Vinson , Dennis Rowland 78 80 incl. Japan tour , inventor of the Trombetto a compact brass instrument with four valves that plays a chromatic range of six octaves with a trombone mouthpiece , and Poogie Bell performer, record producer, composer, and arranger, having worked with artists including Chaka Khan , Marcus Miller , Roberta Flack , Erykah Badu , David Bowie , David Sanborn , Al Jarreau , Vanessa L. Williams Vanessa Williams and Randy Crawford . The jam session features both jazz standards and original compositions, and DJs spin classic jazz vinyl during breaks. There is a documentary style web TV series being produced by Greg Runco, directed by Ralph Vituccio, that focuses on the musicians of Interval Monday, known collectively as, The Interval Trio & Friends. Interval Monday is the only jam session in the world that brings together the following collection of musicians, including br Howie Alexander Piano, Keyboard br Paul Thompson Bass Guitar br James Johnson III Drums br Dr. Nelson Harrison Trombetto Trombetto from the Ghetto br Tony DePaolis Bass Guitar br Chris Hemingway Sax br Tony Campbell Sax br Brian Sanders Bass Guitar br Dave Throckmorton Drums ... more details
Context date August 2010 The performative interval refers to a unit of analysis in the interaction order defined by the disjunct between practice and the self or between what an actor does and what an actor is . The concept is developed by sociologist Adam Isaiah Green, University of Toronto , as an heuristic device to illustrate the irreducibility of the self to a social category in symbolic interactionist and queer theory renderings of the subject Green 2007 . In Green s reflection on these two latter literatures, the actor acts toward a given social category be it a racial, ethnic, gender or sexual orientation classification through aligning behavior, affect and the body with Norm sociology norms that define the category. Nevetheless, the category is never fully realized in the self, an insight that builds directly on Judith Butler s 1997 conception of performative failure for more, see the concept of performativity , but also on the earlier sociological work of Mead and Goffman , among others. According to Green, whereas pragmatist and interactionist sociological approaches to the self typically focus on how a given actor shores up the gap between doing and being in the performative interval, queer theory focuses on the inability of the self to ever realize a social category as an ontological property of the self. Rather, for queer theorists and within poststructuralism more generally, the self is an ever dissolving iteration of a norm absent a knowable interior or a stable core. References Judith Butler Butler, Judith 1997. Excitable Speech A Politics of the Performative , London Routledge Green, Adam Isaiah. 2007. Queer Theory and Sociology Locating the Subject and the Self in Sexuality Studies , Sociological Theory , 25, 1 26 45. DEFAULTSORT Performative Interval Category Sociological terms ... more details
In mathematics , a partition , P of an interval mathematics interval a , b on the real number real line is a finite sequence of the form a x sub 0 sub x sub 1 sub x sub 2 sub ... x sub n sub b . Such partitions are used in the theory of the Riemann integral , the Riemann Stieltjes integral and the regulated integral . Another partition of the given interval, Q , is defined as a refinement of the partition , P , when it contains all the points of P and possibly some other points as well the partition Q is said to be &ldquo finer&rdquo than P . Given two partitions, P and Q , one can always form their common refinement , denoted P &or Q , which consists of all the points of P and Q , re numbered in order. The norm or mesh of the partition x sub 0 sub x sub 1 sub x sub 2 sub ... x sub n sub is the length of the longest of these subintervals, that is max x sub i sub &minus x sub i &minus 1 sub i 1, ..., n . As finer partitions of a given interval are considered, their mesh approaches zero and the Riemann sum based on a given partition approaches the Riemann integral . A tagged partition is a partition of a given interval together with a finite sequence of numbers t sub 0 sub , ..., t sub n &minus 1 sub subject to the conditions that for each i , x sub i sub &le t sub i sub &le x sub i 1 sub . In other words, a tagged partition is a partition together with a distinguished point of every subinterval its mesh is defined in the same way as for an ordinary partition. It is possible to define a partial order on the set of all tagged partitions by saying that one tagged partition is bigger than another if the bigger one is a refinement of the smaller one. Suppose that math scriptstyle x 0, ldots,x n math together with math scriptstyle t 0, ldots,t n 1 math is a tagged partition of math a, b math , and that math scriptstyle y 0, ldots,y m math together with math scriptstyle s 0, ldots,s m 1 math is another tagged partition of math a,b math . We say that math scriptstyle ... more details
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