Results 261 to 270 of about 433,264 (313)

The Effect of Breastfeeding on the Rate of Conception

1987
According to an old wives’ tale, nursing mothers cannot conceive. Many women the whole world over firmly believe that they are protected against a new pregnancy during the period that they are breastfeeding a baby. Physicians, on the other hand, have been traditionOnliney quite skeptical as to the relationship between lactation and the timing of a ...
Sara L. Tietze, Richard Lincoln
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Heart Rate and the Concept of Circulatory Load∗

Ergonomics, 1969
The functional demands of different types of work-load (dynamic and static muscular work, exposure to extreme hot or cold climates and the mental load caused by emotional stress and by the processing of information) are discussed in this paper. The need for absolute and comparative or relative measurement or estimation of these functional physiological
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A Review of the Concept of the Heart Rate Deflection Point

Sports Medicine, 2000
The heart rate deflection point (HRDP) is a downward or upward change from the linear HR-work relationship evinced during progressive incremental exercise testing. The HRDP is reported to be coincident with the anaerobic threshold. In 1982, Conconi and colleagues suggested that this phenomenon could be used as a noninvasive method to assess the ...
M E, Bodner, E C, Rhodes
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Follicular Dynamics, Ovulation and Conception Rates in Bitches

Reproduction in Domestic Animals, 2009
ContentsReal‐time ultrasound imaging was used in a clinical study to estimate the number of follicles of different sizes, ovulation and conception rates, and to study follicle dynamics following oestrus‐induction of bitches.Follicles were identified during late anoestrus (between 100 and 60 days prior to the pre‐ovulatory LH surge) and there appeared ...
England GC, RUSSO, MARCO, Freeman SL
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Seasonal Trends in Adolescent Pregnancy Conception Rates

Journal of Pediatric and Adolescent Gynecology, 2010
The objectives of this study were to determine if a seasonal trend exists in adolescent pregnancies and to compare the teen conception rate per month to an adult population.The study was conducted in a tertiary care Canadian hospital that has a one-site model of care.A retrospective chart review of all adolescent pregnancies over a 5-year period (N ...
Kaitlyn, Turnbull, Laura N, Nguyen, Mary Anne, Jamieson, Stephanie, Palerme   +3 more
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Monitoring Trends in Conception Rate

American Association of Bovine Practitioners Conference Proceedings, 1988
Monitoring results of a breeding program, especially evaluating trends in conception rate, should be an integral part of a reproductive herd health program.1 "Conception rate" is defined here as the number of pregnancies resulting from a given number of services which when multiplied by 100 becomes a percentage.
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Sraffa and Keynes on the Concept of Commodity Rates of Interest [PDF]

Contributions to Political Economy, 2015
This paper considers how Keynes and Sraffa in December 1931 disagreed on the definition of the concept of commodity rate of interest that was to appear in Sraffa's review of Hayek's Prices and Production. An analysis of that disagreement, which emerges from two letters sent by Keynes to Sraffa, also allows us to see that Sraffa's 1932 definition and ...
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Influence of Endometrial Cysts on Conception Rate of Mares

Journal of Veterinary Medicine Series A, 1995
SummaryA total of 259 normally fertile mares were examined gynecologically by means of rectal palpation and ultrasonography in order to record the presence of uterine cysts and pregnancy. The incidence of endometrial cysts was 22.4%. Of the 95 cysts observed during the trial, 87.4% were located in the middle and posterior segments of both uterine horns.
Tannus RJ, Thun R
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SEASONAL CONCEPTION RATES IN AUSTRALIA

Medical Journal of Australia, 1960
W V, MACFARLANE, D, SPALDING
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Concepts of Equilibrium Exchange Rates

1997
Calculations of estimated equilibrium exchange rates can provide guidance in judging the extent to which actual exchange rates are in line with the fundamentals. First, we describe the concepts of Williamson’s FEER and the IMF economists’ DEER equilibrium exchange rate. Then these concepts are contrasted with the NATREX approach.
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