Results 1 to 10 of about 10,509,509 (258)

The Usefulness of Modified Mallampati Score and CT Upper Airway Volume Measurements in Diagnosing OSA among Patients with Breathing-Related Sleep Disorders

open access: yesApplied Sciences, 2021
Background: Obstructive sleep apnea (OSA) is a condition causing restriction of the airflow through the upper airways during sleep, despite preserved inspiratory muscle activity.
Bartosz Dalewski   +5 more
doaj   +1 more source

Literature Review: Air Oxygen Level Monitoring System

open access: yesInternational Journal of Research and Community Empowerment, 2023
Oxygen is a very important gas for humans. The need for oxygen around the plant is very low because the exhaust gas from various factories often becomes pollutants, one of which is the cement industry.
Satya Cantika Agustinur   +3 more
doaj   +1 more source

Generation of singlet oxygen by porphyrin and phthalocyanine derivatives regarding the oxygen level

open access: yesJournal of Medical Science, 2022
Background. The principle of photodynamic effect is based on the combined action of photosensitiser, molecular oxygen and light, which produce various reactive oxygen species and are associated with significant cellular damage.
Martin Pola   +2 more
doaj   +1 more source

Oxygen Level System Development in WSN and IoT-Based Factory

open access: yesJurnal Elektronika dan Telekomunikasi, 2023
The health of workers is essential to factory productivity. The lack of oxygen experienced by factory workers for a prolonged duration can disrupt the brain system.
Rifki Muhendra, Aisyah Amin
doaj   +1 more source

Blood Oxygen Level-Dependent (BOLD) MRI in Glomerular Disease

open access: yesTransplantology, 2021
Renal hypoxia has recently been implicated as a key contributor and indicator of various glomerular diseases. As such, monitoring changes in renal oxygenation in these disorders may provide an early diagnostic advantage that could prevent potential ...
Daniel R. Nemirovsky   +4 more
doaj   +1 more source

Assessing the SpO2 in a random population – Looking for the best among fingers

open access: yesJournal of Family Medicine and Primary Care, 2022
Context: Pulse oximetry is one of the most revolutionary methods used to monitor the patients in the clinical setting, particularly intensive care and anesthesia. We usually use the index or middle finger to measure SpO2 values, but little is known about
Prabhat Agrawal   +6 more
doaj   +1 more source

Simultaneous measurement of tissue oxygen level‐dependent (TOLD) and blood oxygenation level‐dependent (BOLD) effects in abdominal tissue oxygenation level studies [PDF]

open access: yesJournal of Magnetic Resonance Imaging, 2013
PurposeTo assess oxygenation in abdominal organs with magnetic resonance imaging (MRI), a novel approach is presented to simultaneously measure both T1‐ and ‐maps serially during a single dynamic MRI scan in response to an oxygen challenge.Materials and MethodsThe proposed acquisition scheme consists of a multishot multiecho gradient echo planar ...
Yao, Ding   +6 more
openaire   +2 more sources

Effects of Hypoxia on the Immunomodulatory properties of Adipose tissue-derived Mesenchymal Stem Cells

open access: yesFrontiers in Immunology, 2013
Adipose tissue-derived mesenchymal stem cells (ASC) are of great interest as a cellular therapeutic agent for regenerative and immunomodulatory purposes. The function of ASC adapts to environmental conditions, such as oxygen tension. Oxygen levels within
M eRoemeling-Van Rhijn   +9 more
doaj   +1 more source

Constraints on Paleoproterozoic atmospheric oxygen levels [PDF]

open access: yesProceedings of the National Academy of Sciences, 2018
Significance Earth’s protracted oxygenation significantly transformed global biological and geochemical cycles. In particular, the rise of atmospheric oxygen above trace levels was an essential prerequisite for the development of animals. However, quantifying atmospheric oxygen levels in Earth’s middle age remains a daunting challenge.
Eric J. Bellefroid   +5 more
openaire   +2 more sources

The relation between oxygen saturation level and retionopathy of prematurity [PDF]

open access: yesReviews in Clinical Medicine, 2016
Introduction: Oxygen therapy used for preterm infant disease might be associated with oxygen toxicity or oxidative stress. The exact oxygen concentration to control and maintain the arterial oxygen saturation balance is not certainly clear.
Mohammad Gharavi Fard   +3 more
doaj   +1 more source

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