Results 211 to 220 of about 560,054 (264)
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Return of Ovulation During the Postpartum Period
Acta Obstetricia et Gynecologica Scandinavica, 1974Abstract. The occurrence of ovulation was determined in 21 healthy women after full term delivery by quantitation of the serum progesterone, basal body temperature and cervical mucous ferning tests. The basal body temperature was recorded daily starting during the first week postpartum and serum progesterone estimations and cervical mucus ferning ...
S, Said, E D, Johansson, C, Gemzel
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1999
Abstract The occurrence of a hurricane is a rare event. The likelihood of rare events that are not periodic in time are expressed in terms of return periods. Return periods are used to describe the occurrence of earthquakes and extreme flood events. The qualification that events are not periodic is important.
James B Elsner, A Birol Kara
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Abstract The occurrence of a hurricane is a rare event. The likelihood of rare events that are not periodic in time are expressed in terms of return periods. Return periods are used to describe the occurrence of earthquakes and extreme flood events. The qualification that events are not periodic is important.
James B Elsner, A Birol Kara
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Biases in Decomposing Holding-Period Portfolio Returns
Review of Financial Studies, 2006A growing number of studies in finance decompose multiperiod portfolio returns into a series of single-period returns, using these to test asset pricing models or market efficiency or to evaluate the returns to investment strategies such as those based on momentum, size, and value-growth.
Weimin Liu, Norman Strong
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Communicating the return period of extremes
2023The concept of return period (recurrence interval) of extreme events is widely used in engineering practice and in the media. In engineering design and risk assessment, the concept of return period is used to determine the expected magnitude(s) of one or more extreme weather events – i.e., the expected magnitude of an event that, if occurred,
Elisa Ragno, Amir AghaKouchak
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For periodate, a return to the 1950s
C&EN Global Enterprise, 2017Periodate—an ion composed of iodine, oxygen, and hydrogen—was studied in water-based solutions extensively from the 1950s to the 1980s. Ever since those studies, chemists have accepted that periodate exists in solution as orthoperiodate (H5IO6) and metaperiodate (IO4–) species in equilibrium with each other, along with a dimer (H2I2O104–). Periodate is
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Journal of Geophysical Research, 1959
The samples available in hydrology are often so small that it is desirable to take their size into account when estimating parameters. By using a simple classical model the relationship between various estimates of return periods derived from hydrologic time series has been obtained.
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The samples available in hydrology are often so small that it is desirable to take their size into account when estimating parameters. By using a simple classical model the relationship between various estimates of return periods derived from hydrologic time series has been obtained.
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Return periods in the presence of persistence
Journal of Hydrology, 1970Abstract Defining an n -year flood as one for which the return period, i.e. the expectation of the interval T between floods, is n = 1/p years, we consider the statistical variability of T in the two cases where the statistical properties of the river flows in different years are (i) mutually independent, and (ii) serially correlated by means of
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