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Carrier-phase time transfer

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1999
We have conducted several time-transfer experiments using the phase of the GPS carrier rather than the code, as is done in current GPS-based time-transfer systems. Atomic clocks were connected to geodetic GPS receivers; we then used the GPS carrier-phase observations to estimate relative clock behavior at 6-minute intervals.
K M, Larson, J, Levine
openaire   +2 more sources

GPS time transfer

Proceedings of the IEEE, 1991
The authors describe the use of GPS (Global Positioning System) for time coordination. When GPS first became available, it provided a quantum leap in time coordination with little or no effort on the part of the user. However, workers realized that with more sophisticated analysis techniques even greater accuracy could be wrung from GPS.
W. Lewandowski, C. Thomas
openaire   +1 more source

Interhemispheric Transfer Time in Sportsmen

Journal of Motor Behavior, 2012
The authors' aim was to compare interhemispheric transfer time between 2 groups: highly skilled sportsmen and control subjects. Left- and right-handed individuals were included in the study. The Poffenberger paradigm was used to measure the crossed-uncrossed difference, representing the time to transfer information from one hemisphere to the other.
SEMPRINI, GABRIELE   +2 more
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Timing intra-Fallopian transfer procedures

Reproductive BioMedicine Online, 2007
With the gradual decline in the use of zygote intra-Fallopian transfer (ZIFT), current practice is to offer ZIFT almost exclusively to patients with repeated implantation failure (RIF). For practical reasons, the procedure is sometimes deferred by 1 day and embryo intra-Fallopian transfer (EIFT) is performed. The aim of the present study was to compare
Ariel, Weissman   +7 more
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Intergenerational time transfers and childcare

Review of Economic Dynamics, 2003
Although intergenerational transfers of time in the form of grandparenting are substantial, little is known about their role and importance. In this paper, we calibrate an overlapping generations model extended to allow for both time and monetary transfers to the US economy. We use simulations to show that time transfers have important positive effects
Emanuela Cardia, Serena Ng
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Time Experience and Transference

Journal of the American Psychoanalytic Association, 1983
This paper has examined the historical developments in the understanding of the experience of time in normal and pathological development, with an emphasis on the differences between "objective" time, "subjective" time, the "timelessness" of the system Ucs., and "intrapsychic" time. Using a variety of perspectives--psychobiology, cognitive development,
openaire   +2 more sources

Embryo transfer: timing and techniques

Minerva Endocrinology, 2018
Since the first successful human in vitro fertilization (IVF) pregnancy nearly 40 years ago, remarkable progress has been made in assisted reproductive technology (ART). Improvements in oocyte retrieval, embryo culture, genetic screening, and embryo selection have contributed to dramatic improvements in IVF outcomes.
Pietro, Bortoletto   +2 more
openaire   +2 more sources

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