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Half-value duration (HVD or HaVD), also known as T50%Cmax, is a pharmacokinetic parameter defined as the time for circulating concentrations to decline
Half-value_duration
Sign that indicates the relative duration of a note
Unmodified note values are fractional powers of two, for example one, one-half, one fourth, etc. A rest indicates a silence of an equivalent duration. Shorter
Note_value
Concept in statistics and wave theory
width at half maximum (FWHM) is the difference between the two values of the independent variable at which the dependent variable is equal to half of its
Full_width_at_half_maximum
Musical note duration
one eighth the duration of a whole note (semibreve). Its length relative to other rhythmic values is as expected—e.g., half the duration of a quarter note
Eighth_note
Musical note duration
music, a half note (American) or minim (British) is a note played for half the duration of a whole note (or semibreve) and twice the duration of a quarter
Half_note
Musical note duration
the duration of the original note by half of its value. This makes a dotted note equivalent to the original note tied to a note of half the value – for
Dotted_note
Length of time which a note can last
In music, duration is an amount of time or how long or short a note, phrase, section, or composition lasts. "Duration is the length of time a pitch, or
Duration_(music)
Computing language developed by Nokia for transfer of ringtones to cellphones
where each string contains a duration, pitch, octave and optional dotting (which increases the duration of the note by one half). The format of RTTTL notation
Ring Tone Text Transfer Language
Ring_Tone_Text_Transfer_Language
Emphasis on a note
eighth note followed by an eighth rest. The duration of a staccato note may be about half as long as the note value would indicate, although the tempo and
Accent_(music)
Topics referred to by the same term
HVD may refer to: Half-value duration, a pharmacokinetic parameter High-voltage differential signaling, an electrical signalling method Hosted Virtual
HVD
usage, musical note and rest values have names that indicate their length relative to a whole note. A half note is half the length of a whole note, a
List_of_musical_symbols
International standards for dates and times
P is the duration designator (for period) placed at the start of the duration representation. Y is the year designator that follows the value for the number
ISO_8601
Representation of a signal as a rectangular wave with varying duty cycle
Pulse-width modulation (PWM), also known as pulse-duration modulation (PDM) or pulse-length modulation (PLM), is any method of representing a signal as
Pulse-width_modulation
Aspect of music
basic beat requires the perception of a regular sequence of distinct short-duration pulses and, as a subjective perception of loudness is relative to background
Rhythm
Opioid analgesic drug
into the central nervous system. Its half-value duration (HVD) is 14 to 15 hours, while its terminal elimination half-life is in the range of 62 to 96 hours
Cebranopadol
Music term
Beat Canter rhythm Colotomy Counting Count off Cross-beat Duration Note value Gatra Groove Half-time Harmonic rhythm Hemiola Homorhythm Iqa' Isorhythm Metric
Groove_(music)
Representation of isolatable musical sound
different manners to sound them) instead of pitch. Note value expresses the relative duration of the note in time. Dynamics for a note indicate how loud
Musical_note
Valuation in finance
approach can be used to compare the optimal duration NPV. The time-discrete formula of the net present value N P V ( i , N ) = ∑ t = 0 N R t ( 1 + i ) t
Net_present_value
Type of beat-subdividing rhythm in music
equivalent to the second higher note value. For example, five quintuplet eighth notes total the same duration as a half note (or, in 3 8 or compound meters
Tuplet
A duration row or duration series is an ordering of a set of durations, in analogy with the tone row or twelve-tone set. Olivier Messiaen's "Mode de valeurs
Duration_series
Time taken for a drug to halve its concentration in blood plasma
shorten effect duration even after a single dose (e.g., triazolam, midazolam). The longer half-life is called the terminal half-life and the half-life of the
Biological_half-life
Musical note duration
demisemihemidemisemiquaver (British), is a note played for 1⁄256 of the duration of a whole note. It lasts half as long as a hundred twenty-eighth note and takes up one
Two_hundred_fifty-sixth_note
Estimated potential loss for an investment under a given set of conditions
"Improved duration-based backtesting of value-at-risk". Journal of Risk. 8 (2): 17–38. doi:10.21314/JOR.2006.128. Tokpavi, S. "Backtesting Value-at-Risk:
Value_at_risk
Musical technique using a repeating pattern
complexity of ...[taleae] that mixes mensuration and undergoes diminution by half—became a typical, even a defining feature of motets in the 14th century and
Isorhythm
according to ISO 9869 norms, but shorter measurement durations give a reliable indication of the R-value as well. The progress of the measurement can be viewed
R-value_(insulation)
In neuroscience, aspect of a cell membrane
half the current that needs to be applied for the duration of chronaxie, which is a strength-duration time constant that corresponds to the duration of
Rheobase
Pain scale for insect stings
2024-04-19. Webb, Jonathan (18 September 2015). "'Universal urination duration' wins Ig Nobel prize". BBC News. Berenbaum, May. "A Stinging Commentary"
Schmidt_sting_pain_index
Unit of time based on Earth's orbit
after the value because measurement of the duration from the present to the past is implicit in the designation. In contrast, the duration of a remote
Year
Measurement of lethal dose of substance
substance. The value of LD50 for a substance is the dose required to kill half the members of a tested population after a specified test duration. LD50 figures
Median_lethal_dose
Short-duration reduction in the voltage of an electric power distribution system
or depth, and duration. A voltage sag happens when the RMS voltage decreases between 10 and 90 percent of nominal voltage for one-half cycle to one minute
Voltage_sag
Distance from center of Earth to center of Moon
uncertainty of 30 km, and this remained the definitive lunar distance value for the next half century. By recording the instant when the Moon occults a background
Lunar_distance
Transmission of language with brief pulses
dahs. The dit duration can vary for signal clarity and operator skill, but for any one message, once the rhythm is established, a half-beat is the basic
Morse_code
Interval of silence in a piece of music
rehearsal letters. A rest may also have a dot after it, increasing its duration by half, but this is less commonly used than with notes, except occasionally
Rest_(music)
Type of investment
and gains of the underlying investments over the duration of the fund. Another popular stable value structure is the general account product which provides
Stable_value_fund
Method of planning and managing projects
projects typically finish on time. Projects typically complete at 222% of the duration originally planned, 189% of the original budgeted cost, 70% of projects
Critical chain project management
Critical_chain_project_management
Musical note duration
Anglosphere countries), sometimes called a half-thirty-second note, is a note played for half the duration of a thirty-second note (or demisemiquaver)
Sixty-fourth_note
A system where hour lengths are unequal or not all 60 minutes
as ancient or Roman hours (Latin: horae temporales). They are unequal duration periods of time because days are longer and nights shorter in summer than
Unequal_hours
SI unit of time
minute and every other division of time counted by the clock has the same duration as any other identical division of time. A sundial, which measures the
Second
Trembling sound effect
notes receiving the rhythmic value of the total duration of the tremolo (e.g. two half-notes for a tremolo lasting a half-note), and then either connecting
Tremolo
Doomsday scenario on human births
past duration is tp; HFS = the hypothesis that the future duration of the phenomenon will be short; HFL = the hypothesis that the future duration of the
Doomsday_argument
Electrical device that converts AC to DC
voltage pulse with the period duration of 1 3 π {\displaystyle {\frac {1}{3}}\pi } (from 60° to 120°) with the peak value v ^ D C = 3 ⋅ V p e a k {\displaystyle
Rectifier
Concentration of a compound where 50% of its maximal effect is observed
is termed the half maximal effective concentration and is abbreviated EC50, or rarely [A]50. The term "potency" refers to the EC50 value. The lower the
EC50
Device to measure the passage of time
symmetric as they are usually manufactured by pinching a tube. The specific duration of time a given hourglass measures is determined by factors including the
Hourglass
Subdivision of the academic year at educational institutions
semester, trimester, and quarter are used to denote terms of specific durations. In most countries, the academic year begins in late summer or early autumn
Academic_term
Magnitude of velocity
299792458 m/s). (* = approximate values) According to Jean Piaget, the intuition for the notion of speed in humans precedes that of duration, and is based on the
Speed
Form of musical rhythmic structure
medieval music was often structured in subdivisions of three, while the note values in modern music are most often subdivided into two parts, 4/4 being the
Prolation
Musical note duration
sixteenth note (American) or semiquaver (British) is a note played for half the duration of an eighth note (quaver), hence the names. It is the equivalent
Sixteenth_note
sunshine duration is around 1500 hours per year.[citation needed] In winter Madrid has about three times more sun duration than in the northern half of Europe
Climate_of_Madrid
Chart indicator of moving average convergence/divergence
is designed to reveal changes in the strength, direction, momentum, and duration of a trend in a stock's price. The MACD indicator (or "oscillator") is
MACD
Musical note duration
twice the duration of the whole note, a half note lasts one half the duration, and a quarter note (or crotchet) lasts one quarter the duration. A related
Whole_note
Musical note duration
As the name implies, a quarter note's duration is one quarter that of a whole note, half the length of a half note, and twice that of an eighth note
Quarter_note
Specification of beats in a musical bar/measure
basic mensuration signs , , , indicate the normal ratio of duration between different note values. Unlike modern notation, the subdivisions could be either
Time_signature
and Rights vested in the Sierra Leone Company, and for shortening the Duration of the said Company; and for preventing any dealing or trafficking in the
List of acts of the Parliament of the United Kingdom from 1807
List_of_acts_of_the_Parliament_of_the_United_Kingdom_from_1807
Length of time when the film or digital sensor inside a camera is exposed to light
amount of light that reaches the film or sensor (the exposure). Exposure value (EV) is a quantity that accounts for the shutter speed and the f-number
Shutter_speed
Metric in epidemiology
basic reproduction number is affected by several factors, including the duration of infectivity of affected people, the contagiousness of the microorganism
Basic_reproduction_number
Control loop feedback mechanism
loop oscillates; then set K p {\displaystyle K_{p}} to approximately half that value for a "quarter amplitude decay"-type response. Then increase K i {\displaystyle
PID_controller
Duration of time in Indian astronomy
In Indian astronomy, a karaṇa is a half of a tithi. It is the duration of time in which the difference of the longitudes of the Sun and the Moon is increased
Karaṇa_(pañcāṅga)
Skin disease characterized by red, raised, and itchy bumps
The patches of rash may appear on different body parts, with variable duration from minutes to days, and typically do not leave any long-lasting skin
Hives
Currency not backed by any commodity
fiat money. Fiat money generally does not have intrinsic value nor a use value. It has value only because the individuals who use it (as a unit of account
Fiat_money
Fictional character in Beverley Hills, 90210
female character of Beverly Hills, 90210 for the majority of the show's duration. Initially presented as a "spoiled teen vixen", the role was gradually
Kelly_Taylor
Total eclipse
The 2009 eclipse maximum duration of 6 minutes and 39.5 seconds occurred over the Pacific Ocean, and the longest duration on land was on remote, uninhabited
Solar eclipse of August 2, 2027
Solar_eclipse_of_August_2,_2027
population Political history of the world Taagepera, Rein (1978). "Size and duration of empires: Systematics of size" (PDF). Social Science Research. 7 (2):
List_of_largest_empires
Clock used for pace of play in sports
24-second clock, particularly in the NBA and other leagues where that is the duration of the shot clock. If the shot clock reaches zero before the team attempts
Shot_clock
Mechanical component that converts rotational motion to reciprocal motion
duration measurement for a camshaft is affected by the amount of lift that is chosen as the start and finish point of the measurement. A lift value of
Camshaft
French philosopher (1859–1941)
and causality in his concept of duration, making room for a tangible marriage of free will with causality. Seeing duration as a mobile and fluid concept
Henri_Bergson
Bonds issued by the UK government
the market value upward until the discount gap is entirely erased at maturity. As the time horizon shortens, the bond's modified duration decays toward
Gilt-edged_securities
Musical concept indicating to the speed of interpretation
signature or note length (half notes in 4 4 could change to whole notes in 2 2, and they would all have the same duration) Ma non tanto – but not so
Tempo
Bet sizing formula for long-term growth
value − original value original value = 1.1 − 1 1 = 0.1 {\displaystyle g={\frac {{\text{final value}}-{\text{original value}}}{\text{original value}}}={\frac
Kelly_criterion
1925 tornado in Missouri, Illinois and Indiana, U.S.
were in the path of the tornado, which had lasted a record duration of three and a half hours. Approximately 15,000 homes were destroyed by the tornado
1925_Tri-State_tornado
Fair price of a bond
appropriate to its credit rating and maturity or duration. Use this required return in the present-value formula above by replacing i {\displaystyle i}
Bond_valuation
hours per year. However, this is a 70% larger value than in the northern half of Europe, where sunshine duration is around 1500 hours per year.[citation needed]
Climate_of_Valencia
Spanish footballer (born 2003)
Carreras joined EFL Championship club Preston North End on loan for the duration of the 2022–23 season. He made his debut on 30 July 2022, coming on as
Álvaro_Carreras
Inverse relationship between the intensity and duration
materials, reciprocity is valid with good accuracy over a range of values of exposure duration, but becomes increasingly inaccurate as this range is departed
Reciprocity_(photography)
Musical note duration
smaller relative value per note shape. It is normally used for music in a relatively quick tempo, where it indicates two minim (half note) beats in a
Double_whole_note
American television reality game show
the Banker present in-person. While the bottom half of the board has values less than $1,000, the top half of the board consists entirely of cases containing
Deal_or_No_Deal_Island
Perception of events' position in time
the duration of the indefinite and unfolding of events. The perceived time interval between two successive events is referred to as perceived duration. Though
Time_perception
Digital audio effect
audio waveform. To accurately represent a wideband waveform of substantial duration, digital audio requires a large number of samples at a high sample rate
Bitcrusher
Musical technique
pivot note values in old measure}}}} Thus if the two half notes in 4 4 time at a tempo of quarter note = 84 are made equivalent with three half notes at
Metric_modulation
Term used in Western music and music theory
diminution of the duration of note shapes is the most common function of coloration. Diminution is most often by one-third of the note-value, so that three
Diminution
Integrated circuit used for timer applications
natural log of 3 constant. The output pulse duration can be lengthened or shortened as desired by adjusting the values of R and C. Subsequent triggering before
555_timer_IC
Naturally recurring resting state of mind and body
OG, Molinari L, Largo RH (February 2003). "Sleep duration from infancy to adolescence: reference values and generational trends". Pediatrics. 111 (2): 302–7
Sleep
21 April 2017. Freddie is a widower of his late wife Sadie, an old and valued customer of Audrey Roberts' (Sue Nicholls) salon. When Sadie dies unexpectedly
List of Coronation Street characters introduced in 2016
List_of_Coronation_Street_characters_introduced_in_2016
2015 video game
production value, graphics, and technical achievements, while criticism was given for the game's short length, story, gameplay, replay value, and limited
The_Order:_1886
Indian automobile manufacturer
for wages, the report claimed, employees are expected to be paid for the duration of the lockout. On 26 July 2012, Maruti announced employees would not be
Maruti_Suzuki
Musical notation system used for Renaissance vocal polyphony
"mensural" refers to the notation of precise rhythmic durations based on numerical proportions of note values. Its modern name is derived from the terminology
Mensural_notation
Elliptical part of a note
indicate duration. Noteheads may be the same shape but colored completely black or white, indicating the note value (i.e., rhythmic duration). In a whole
Notehead
Measurement of strength of sunburn-producing ultraviolet (UV) radiation
exposure to UV index 12 radiation, since it is twice the intensity but half the duration. This linear scale is unlike other common environmental scales such
Ultraviolet_index
Professional Twenty20 cricket league in India
The IPL is the second-richest sports league in the world by per-match value, after the National Football League. In 2023, the league sold its media
Indian_Premier_League
Central nervous system stimulant
pregnancy. In newborns the half-life can be 80 hours or more, dropping rapidly with age, possibly to less than the adult value by age 6 months. The antidepressant
Caffeine
Award ceremony for films of 2025
The Girl Who Cried Pearls, Hamnet, Mr Nobody Against Putin, Sentimental Value, The Singers, Two People Exchanging Saliva, and Weapons with one each. The
98th_Academy_Awards
New Zealand electricity distribution company
by local councils.) Even back then, the AEPB's founders understood the value and importance of electricity supply to Aucklanders, and this model of guardianship
Vector_Limited
Practice of paying money to be made an officer
afterwards, he would receive only the value of his Captain's commission. Various regulations required minimum durations of service in a given rank and restricted
Purchase of commissions in the British Army
Purchase_of_commissions_in_the_British_Army
Methods for synchronizing serial communications
(the START bit), waits 'half a bit duration' and then reads the value of the signal. A further delay of one 'whole bit duration' is executed before the
Comparison of synchronous and asynchronous signalling
Comparison_of_synchronous_and_asynchronous_signalling
Fictional character from EastEnders
to find a birthday card he made for Gavin as a child and little else of value. He throws the box on the floor, frightening Sharon. Zack tells Sharon about
Zack_Hudson
Magnitude 8.0 earthquake in China
take place in Ningbo during national mourning, would be suspended for the duration of the mourning period. The route of the torch through the country was
2008_Sichuan_earthquake
Method of analyzing electrochemical reactions
arbitrarily, either step by step or continuously, and the resulting current value is measured as the dependent variable. The opposite, i.e., amperometry,
Voltammetry
Open All Hours. Arkwright is a pragmatic, miserly man with old-fashioned values, whose world seems to stop at his shop door, except for his lusting for
List of Open All Hours characters
List_of_Open_All_Hours_characters
Musical note with a rhythmic value, but no discernible pitch
indeterminate pitch. Notes with value less than a half note use a cross instead of an oval as a note head. Occasionally a half note or whole note is represented
Ghost_note
Scientific dating of the Earth
accretion of Earth began soon after the formation of CAIs. Because the duration of this accretion process is not yet adequately constrained—predictions
Age_of_Earth
Date and time representation system widely used in computing
Unix time as 31536000. Negative values, on systems that support them, indicate times before the Unix epoch, with the value decreasing by 1 for every non-leap
Unix_time
HALF VALUE-DURATION
HALF VALUE-DURATION
Girl/Female
Muslim
Lunar halo. Glory.
Boy/Male
Arabic
Value
Male
Scandinavian
Scandinavian form of Old Norse Alfr, ALF means "elf." Compare with other forms of Alf.
Surname or Lastname
English, Scottish, Irish, German, and Scandinavian
English, Scottish, Irish, German, and Scandinavian : from Middle English hall (Old English heall), Middle High German halle, Old Norse hǫll all meaning ‘hall’ (a spacious residence), hence a topographic name for someone who lived in or near a hall or an occupational name for a servant employed at a hall. In some cases it may be a habitational name from places named with this word, which in some parts of Germany and Austria in the Middle Ages also denoted a salt mine. The English name has been established in Ireland since the Middle Ages, and, according to MacLysaght, has become numerous in Ulster since the 17th century.Hall is one of the commonest and most widely distributed of English surnames, bearing witness to the importance of the hall as a feature of the medieval village.
Girl/Female
African, Arabic, Hindu, Indian, Lebanese, Muslim, Pashtun, Sanskrit, Swahili
Halo Around the Moon; Plough; Girlfriend; Great; Dazzling; Glorious; Lunar Halo; Glory; Golden; Female Friend; Sweetness; Outline of Brightness Surrounding a Full Moon
Female
Welsh
Welsh name HAF means "summer."
Male
English
 English surname transferred to forename use, derived from Old English heall "hall," hence "lives at the hall." Middle English name HALL means "to cover, conceal."
Male
English
Pet form of English Henry, HAL means "home-ruler."
Girl/Female
Indian
Aureole, Halo around the Moon
Boy/Male
American, Anglo, Australian, British, Christian, English, French, German, Teutonic
Ingenious; From the Hall; Healthy Hero
Boy/Male
Norse
Half son of Asgeir.
Boy/Male
Christian & English(British/American/Australian)
From the Hall or Manor
Male
English
Short form of English Alfred, ALF means "elf counsel." Compare with other forms of Alf.
Boy/Male
English Swedish Teutonic
Lives in the hall.
Boy/Male
Arabic, Indian, Lebanese, Sanskrit, Swahili
Halo Around the Moon; Plough; Great; Dazzling; Sweetness
Male
German
Low German pet form of German Adolf, ALF means "noble wolf." Compare with other forms of Alf.
Boy/Male
Hindu, Indian
Value
Male
Scandinavian
 Scandinavian form of Old Norse Ráðúlfr, RALF means "wise wolf." Compare with another form of Ralf.
Male
German
Pet form of German Adolf, AHLF means "noble wolf."
Girl/Female
Muslim
Aureole, Halo around the Moon
HALF VALUE-DURATION
HALF VALUE-DURATION
Girl/Female
Hindu, Indian
Sweet Voice
Girl/Female
Assamese, Hindu, Indian, Kannada, Marathi, Sindhi, Telugu
Another Name for Saraswathi
Girl/Female
Bengali, Celebrity, Gujarati, Hindu, Indian, Kannada, Oriya, Tamil, Telugu
Wealth; Good Luck; Intellectual; Thinking Best; Beautiful; Goddess Lakshmi; Well Mannered
Girl/Female
Muslim/Islamic
Supplication prayer
Female
Arthurian
, little moon.
Male
English
Pet form of English Richard, RICHIE means "powerful ruler."
Girl/Female
Indian
Pure
Boy/Male
Indian
Eternal, Immortal, Who has no death
Boy/Male
British, English, Hindu, Indian
Lucky Star
Girl/Female
Hindu, Indian
Strong; Golden Eyes; Smoothing Flowers
HALF VALUE-DURATION
HALF VALUE-DURATION
HALF VALUE-DURATION
HALF VALUE-DURATION
HALF VALUE-DURATION
a.
Half-demented; half-witted.
n.
See Half deck, under Deck.
v. t.
To raise to estimation; to cause to have value, either real or apparent; to enhance in value.
v. t.
To be worth; to be equal to in value.
a.
Half-blooded.
v. i.
Unsettled; unfixed; undetermined; indefinite; ambiguous; as, a vague idea; a vague proposition.
n.
Precise signification; import; as, the value of a word; the value of a legal instrument
a.
Consisting of some indefinite portion resembling a half; approximately a half, whether more or less; partial; imperfect; as, a half dream; half knowledge.
adv.
In an equal part or degree; in some pa/ appro/mating a half; partially; imperfectly; as, half-colored, half done, half-hearted, half persuaded, half conscious.
v. t.
To estimate the value, or worth, of; to rate at a certain price; to appraise; to reckon with respect to number, power, importance, etc.
n.
One who values; an appraiser.
imp. & p. p.
of Value
a.
Consisting of a moiety, or half; as, a half bushel; a half hour; a half dollar; a half view.
a.
Half-bred; imperfect.
a.
Half-filled.
a.
Half-blooded.
a.
Highly regarded; esteemed; prized; as, a valued contributor; a valued friend.
n.
Value.
n.
The relative length or duration of a tone or note, answering to quantity in prosody; thus, a quarter note [/] has the value of two eighth notes [/].