Results 231 to 240 of about 997,537 (286)

Superradiant terahertz free-electron laser driven by electron microbunch trains. [PDF]

open access: yesLight Sci Appl
Liang Y   +19 more
europepmc   +1 more source

Exceptional points preceding and enabling spontaneous symmetry breaking. [PDF]

open access: yesCommun Phys
Hill L   +5 more
europepmc   +1 more source
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Monitoring Physical Activity Intensity During Pregnancy

American Journal of Lifestyle Medicine, 2021
For apparently healthy pregnant women, regular physical activity is recommended. The American College of Obstetricians and Gynecologists (ACOG) created recommendations for physical activity and exercise during pregnancy in 1985. At that time, pregnant women were advised to not exceed a heart rate of 140 beats per minute with physical activity.
Hesketh, Kathryn R., Evenson, Kelly R.
openaire   +2 more sources

High Intensity Physics

AIP Conference Proceedings, 2009
The capability to produce high field strengths, and thereby obtain a new means for doing fundamental physics, has over the last thirty years taken great leaps forward.
M. Marklund   +5 more
openaire   +2 more sources

Physics in intensive care

Physics Education, 1978
Some examples are given of the essential measurements which make use of basic physical principles as applied in intensive care units. The associated electronics is not considered. Topics covered comprise oxygen concentration measurement, blood oxygen analysis, ocular microtremor measurement, and automatic fluid balance monitoring.
openaire   +1 more source

Neutrino physics with intense beams

AIP Conference Proceedings, 1983
Intense, low‐energy neutrino beams would make possible a variety of interesting experimental tests of the standard model. A number of these tests are described.
Boris Kayser, S. Peter Rosen
openaire   +1 more source

Intensity interferometry in subatomic physics

Reviews of Modern Physics, 1990
The intensity interferometry technique, commonly referred to as the Hanbury-Brown/Twiss effect, has been applied to nuclear and elementary-particle collisions as a method of investigating their space-time evolution. In this review the theoretical framework of the technique is presented, describing the formulations in common use. A survey is made of its
David H. Boal   +2 more
openaire   +1 more source

High-Intensity Laser-Atom Physics

2000
Publisher Summary This chapter illustrates that the development of lasers capable of delivering short pulses of very intense radiation, over a wide frequency range, has led to the discovery of new, nonperturbative multiphoton processes in laser interactions with atomic systems.
Joachain, Charles   +2 more
openaire   +1 more source

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