Results 21 to 30 of about 3,691,526 (285)

Near-Infrared Spectroscopy in Extremely Preterm Infants

open access: yesFrontiers in Pediatrics, 2021
With advances in neonatal care, survival of premature infants at the limits of viability has improved significantly. Despite these improvement in mortality, infants born at 22–24 weeks gestation are at a very high risk for short- and long-term ...
Leeann R. Pavlek   +4 more
doaj   +1 more source

Portable high-end instrument for in-vivo infrared spectroscopy using spread spectrum modulation [PDF]

open access: yes, 2004
Near infrared spectroscopy (NIRS) can be employed to monitor noninvasively and continuously local changes in hemodynamics and oxygenation of human tissues.
Trevisan, S., Giardini, M.E.
core   +4 more sources

The use of near infrared (NIR) spectroscopy to improve soil mapping at the farm scale [PDF]

open access: yes, 2008
The creation of fine resolution soil maps is hampered by the increasing costs associated with conventional laboratory analyses of soil. In this study, near infrared (NIR) reflectance spectroscopy was used to reduce the number of conventional soil ...
Söderström, Mats   +2 more
core   +2 more sources

Near-infrared laser spectroscopy of NiI [PDF]

open access: yesThe Journal of Chemical Physics, 2004
Laser-induced fluorescence spectrum of NiI in the near infrared region of 714–770 nm has been recorded. Seven bands belonging to three electronic transition systems were observed and analyzed: the (0,0), (1,0), and (2,0) bands of [13.3] 2Σ+-A 2Π3/2 system; the (1,1) and (0,1) bands of [13.9] 2Π3/2-X 2Δ5/2 system; and the (0,0) and (1,0) bands of [13.9] 
Ye, J, Tam, WS, Cheung, ASC
openaire   +5 more sources

Near-infrared spectroscopy

open access: yesJournal of Neuroanaesthesiology and Critical Care, 2015
Tissue ischaemia can be a significant contributor to increased morbidity and mortality. Conventional oxygenation monitoring modalities measure systemic oxygenation, but regional tissue oxygenation is not monitored.
Virendra Jain, Hari H Dash
doaj   +1 more source

Indexing cerebrovascular health using near-infrared spectroscopy

open access: yesScientific Reports, 2021
Near-infrared spectroscopy (NiRS) is a relatively new technology of brain imaging with its potential in the assessment of cerebrovascular health only recently discovered.
Rashid Afkhami   +4 more
doaj   +1 more source

Towards Commoditised Near Infrared Spectroscopy [PDF]

open access: yesProceedings of the 2017 Conference on Designing Interactive Systems, 2017
Near Infrared Spectroscopy (NIRS) is a sensing technique in which near infrared light is transmitted into a sample, followed by light absorbance measurements at various wavelengths. This technique enables the inference of the inner chemical composition of the scanned sample, and therefore can be used to identify or classify objects.
Simon Klakegg   +5 more
openaire   +3 more sources

Near-Infrared Spectroscopy [PDF]

open access: yesJournal of Neurosurgery, 1994
The near-infrared portion of the electromagnetic spectrum is located between the visible and mid-range infrared (MIR) sections, roughly 750–2500 nm or 13,333–4000 cm 1 (see Fig. 6.1). It consists (mainly) of overtones and combinations of the bands found in the mid-range infrared region (4000–200 cm ).
I.M. Williams   +3 more
  +4 more sources

The application of near infrared spectroscopy in nutritional intervention studies [PDF]

open access: yes, 2013
Functional near infrared spectroscopy (NIRS) is a non-invasive optical imaging technique used to monitor cerebral blood flow (CBF) and by proxy neuronal activation.
Kennedy, David   +5 more
core   +1 more source

Monitoring Detrusor Oxygenation and Hemodynamics Noninvasively during Dysfunctional Voiding

open access: yesAdvances in Urology, 2012
The current literature indicates that lower urinary tract symptoms (LUTSs) related to benign prostatic hyperplasia (BPH) have a heterogeneous pathophysiology. Pressure flow studies (UDSs) remain the gold standard evaluation methodology for such patients.
Andrew J. Macnab   +2 more
doaj   +1 more source

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