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For example, if there is a gestational age based on the beginning of the last menstrual period of 9.0 weeks, and a first-trimester obstetric ultrasonography gives an estimated gestational age of 10.0 weeks (with a 2 SD variability of ±8% of the estimate, thereby giving a variability of ±0.8 weeks), the difference of 1.0 weeks between the ...
Naegele's rule is a standard way of calculating the due date for a pregnancy when assuming a gestational age of 280 days at childbirth. The rule estimates the expected date of delivery (EDD) by adding a year, subtracting three months, and adding seven days to the origin of gestational age.
Emergency contraception (EC) is a birth control measure, used after sexual intercourse to prevent pregnancy.. There are different forms of EC. Emergency contraceptive pills (ECPs), sometimes simply referred to as emergency contraceptives (ECs), or the morning-after pill, are medications intended to disrupt or delay ovulation or fertilization, which are necessary for pregnancy.
Nevertheless, calculating even a rough idea of the total expenses relating to turnover can spur action planning within an organization to improve the work environment and reduce turnover. Surveying employees at the time they leave an organization can also be an effective approach to understanding the drivers of turnover within a particular ...
ESR begins to rise at 24 to 48 hours after the onset of acute self-limited inflammation, decreases slowly as inflammation resolves, and can take weeks to months to return to normal levels. For ESR values more than 100 mm/hour, there is a 90% probability that an underlying cause would be found upon investigation. Non-inflammatory conditions
Since it is difficult to determine the exact date of ovulation, errors are often made in calculating gestation period. Canine sperm can live for 10 to 11 days  in the uterine tubes (fallopian tubes) so if a female is bred 10 days before the oocytes (eggs) can be fertilized, she will appear to have a gestation length of 70 days.
Universal Credit is a United Kingdom social security payment. It is means-tested and is replacing and combining six benefits for working-age households with a low income: income-related Employment and Support Allowance, income-based Jobseeker's Allowance, and Income Support; Child Tax Credit and Working Tax Credit; and Housing Benefit.
In 1959, the WHO signed Agreement WHA 12–40 with the International Atomic Energy Agency (IAEA), which says:. whenever either organization proposes to initiate a programme or activity on a subject in which the other organization has or may have a substantial interest, the first party shall consult the other with a view to adjusting the matter by mutual agreement.