periodicity


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periodicity

 [pēr″e-o-dis´ĭ-te]
recurrence at regular intervals of time.

per·i·o·dic·i·ty

(pēr'ē-ō-dis'i-tē),
Tendency to recur at regular intervals.

periodicity

/pe·ri·o·dic·i·ty/ (pēr″e-ah-dis´ĭ-te) recurrence at regular intervals of time.

periodicity

[pir′ē·ədis′itē]
Etymology: Gk, periodikos, periodical
events or episodes that tend to repeat at predictable intervals. For example, filarial worms may appear in cutaneous blood vessels at night but not in daylight hours, and malaria may cause paroxysms at 24-, 48-, or 72-hour intervals, depending on the species of pathogen.

per·i·o·di·ci·ty

(pēr'ē-ŏ-dis'i-tē)
Tendency to recurrence at regular intervals.

periodicity

1. Recurring at intervals or in cycles.
2. Of DNA, the number of base pairs in one complete turn of the double helix. The periodicity of DNA is about 10.

periodicity

  1. the carrying out of certain functions on a regular basis.
  2. the interval between two peaks of activity in a cyclic process.
  3. the number of base pairs per turn of the double helix in DNA.

periodicity,

n the quality of being periodic or recurring at definite intervals of time.

per·i·o·di·ci·ty

(pēr'ē-ŏ-dis'i-tē)
Tendency to recur at regular intervals.

periodicity,

n events that tend to repeat at predictable intervals.

periodicity

recurrence at regular intervals of time.

circadian periodicity
every 24 hours.
diurnal periodicity
twice daily.

Patient discussion about periodicity

Q. i just have my period last november 25 and ended on 28.when is my possible fertile and ovulation period please help me identify my fertile and ovulation period

A. If someone knew it, it'd solve the human race many problems with fertility. The problem is that ovulation (and thus, the period of possible fertility) happens 14 days BEFORE the onset of menses, so you know about it only retrospectively.

However there ways such as serial body temperature measuring, along with kits that measures the level of hormones in the urine in order to estimate the time of the coming ovulation, and help in timing intercourse.

You may read more about it here (www.mayoclinic.com/health/ovulation-signs/AN01521 ) but anyway, consulting a doctor (e.g. gynecologist) may be wise.

Q. can you get pregnant on your period? i know that you get pregnant when you ovulate and you ovulate in the middle of your menstration cycle, but people have told me that you can get pregnant on your period. can somebody help me out???

A. It's possible, if your menses are long enough and your period is short enough, since semen can survive (and fertilize the ova) up to 3 days after intercourse. It's not common, but also not impossible. That's why the safe-days method isn't very effective in preventing pregnancy.

Q. how should i support my wife during this tough period?

A. first of all don't call it a tough period. a happy period might work better. although the wife can get annoyed by it. but she'll get annoyed from anything... just try to make her comfortable. foot massage , bubble baths, movies and popcorn.
it really depends on what kind of person is she and what she likes or not.

congratulations!

More discussions about periodicity
References in periodicals archive ?
From this new analysis results we can conclude that (i) in both cases (solar and sidereal time scaling) the MDT data show a periodicity, (ii) the periodicity has a frequency depending on the time scaling: diurnal for solar time (oscillation maximum: at approx.
To investigate the periodicity of formation of striae and the increment of shell deposited under the different environmental conditions, each scallop was marked individually using the fluorochrome dye calcein.
Paul Casamassimo, Director of AAPD's Pediatric Oral Health Research and Policy Center, "Consistency of policy across the states related to periodicity has the potential to improve access and to develop workable systems for inter-professional care.
There exists a binary sequence S with regulator of almost periodicity f such that for every natural number n there exists a finite automaton A(n) with n states, input alphabet {0,1} and output alphabet {0, .
Thus, the history of speech rhythm studies' focus on periodicity and isochrony is not supported by the evidence.
The emergence of both sexes showed a significant diel periodicity with Watson's U2 values of 19.
Issues addressed included the growing body of evidence linking the origin of antigenic shift to animal reservoirs of influenza viruses (24), the questionable validity of predictable patterns of pandemic periodicity, and the appropriate classification of the 1947 strain (25).
The residual head hydrograph displays a periodicity that is not related to barometric changes (Fig.
There are subtle indications that the periodicity between successive supercontinent cycles is getting shorter (Fig.
As a result, some builds of 1080 showed the expected periodicity of the effective Er less frequently in one rotation then in a pattern rotated a quarter turn.
Electroencephalography was nonspecific, with background slowing and occasional triphasic waves (figure 3), indicating a global encephalopathy with lack of periodicity.
Resulting stress-strain data allow the determination of mechanical properties of bundle to combine with the geometry, boundary conditions, constraints and periodicity of rubber-matrix composite for homogenization, in the end, orthotropic elasticity constants are destined for computer modeling of the whole rubber product.