Results 251 to 260 of about 2,302,476 (295)
Some of the next articles are maybe not open access.

Pulse Oximetry

2005
The pulse oximeter is a device for non-invasive, continuous measurement of oxygen saturation. As such it is arguably one of the most important intraoperative monitors at the disposal of anaesthetists, and efforts are being made to make pulse oximeters available at all operating locations throughout the world [Walker et al. 2009].
Patrick Magee, Mark Tooley
openaire   +1 more source

Pulse oximetry

Nursing Standard, 2008
Pulse oximetry is a widely used, non-invasive technique for assessing arterial oxygenation by measuring oxygen saturation in peripheral blood vessels. It is a simple technique, but needs to be carried out with care to obtain reliable results. This article provides guidance on the safe use of pulse oximetry and identifies some of the advantages and ...
openaire   +2 more sources

Airy Pulsed Beams

2010 IEEE 26-th Convention of Electrical and Electronics Engineers in Israel, 2010
The Airy beam (AiB) has attracted a lot of attention recently because of its intriguing features; the most distinctive ones are the propagation along curved trajectories in free space and the weak diffraction. We have previously shown that the AiB is, in fact, a caustic of the rays that radiate from the tail of the Airy function aperture distribution ...
Yan, Kaganovsky, Ehud, Heyman
openaire   +2 more sources

Laser Pulses

2019
Elementary Classical electrodynamics theory of pulse is discussed. The simplest possible models of Fourier-transform limited laser pulses are introduced with Gaussian and Hann envelope. Its frequency content and the power spectrum is also discussed.
openaire   +1 more source

Pulsed squeezed light

Annual Meeting Optical Society of America, 1987
The degree of squeezing generated by parametric downconversion or four-wave mixing can be limited by the ratio of the nonlinear coupling to the linear losses in many practical systems. This ratio can be enhanced by increasing the pump power used for the nonlinear coupling in many solid nonlinear systems where the linear losses are not directly related ...
, Slusher   +4 more
openaire   +2 more sources

To Pulse or Not to Pulse

The Annals of Thoracic Surgery, 1978
Pulsatile and nonpulsatile blood flow have been intensely studied for cardiopulmonary bypass (CPB), isolated organ perfusion, and myocardial preservation. Although early studies differed, later ones have shown the benefits of pulsatile flow. Kidney function, lymph flow, and oxygen consumption are increased during pulsatile perfusion. Also, nonpulsatile
openaire   +2 more sources

Intense Pulsed Light

2011
In addition to lasers, intense pulsed light (IPL) sources are widely used in medicine to treat various indications, such as vascular lesions, irregular pigmentation and hypertrichosis. In contrast to lasers, IPL systems are broadband flash lamps that emit polychromatic incoherent light ranging from visible to infrared (500-1,300 nm).
Schoenewolf, N L   +2 more
openaire   +2 more sources

Rapid corticosterone pulses

Journal of Steroid Biochemistry, 1983
If micro-sampling techniques are used in conjunction with a highly sensitive radioimmunoassay procedure, it is possible to obtain repeated rapid measurements of plasma corticosterone concentrations from unanesthetized rats. Such a procedure reveals the existence of rapid corticosterone pulses with a duration of less than 60 s and amplitudes as great as
openaire   +2 more sources

Pulse Oximetry

Pediatrics In Review, 2019
Viviane G, Nasr, James A, DiNardo
openaire   +2 more sources

Pulse distortions in tilted pulse schemes for ultrashort pulses

Optics Communications, 1986
Abstract Analytical expressions are found for the propagation of the amplitude of tilted ultrashort pulses. The distortions arising are the pulse broadening, tilt angle decrease, chirp, frequency shift and spatial profile variation. Expressions for these quantities are found and it is shown that the mechanisms responsible for the distortions are the ...
openaire   +1 more source

Home - About - Disclaimer - Privacy