Results 221 to 230 of about 12,556,675 (343)

Determination the concentrations of radon gas and exhalation rate in some phosphate fertilizer using CR-39 track detector

Iraqi Journal of Physics, 2019
Essam M. Rasheed
doaj   +1 more source

Balloon-based exercise enhances abdominal activation: a comparison between one expert and one novice with chronic low back pain. [PDF]

J Phys Ther Sci
Nagahori H, Kenyon J, Ho KY.
europepmc   +1 more source

Dynamic RBC‐To‐Membrane Ratio in 129Xe MRI: A Biomarker of Decreased Lung Function in Pulmonary and Vascular Diseases

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2500-2507, May 2026.
ABSTRACT Purpose To present a method for quantifying dissolved 129Xe spectroscopy using singular value decomposition (SVD) and a dynamic red blood cell (RBC)/membrane ratio as a biomarker of disease. Methods A spectroscopic sequence was performed in 45 subjects (27 healthy, 12 dyspnea of unknown origin [DUO], and 6 pulmonary hypertension [PH ...
Gabriela María García Delgado, Ummul Afia Shammi, Cody Thornburgh, Mia Ruppel, Isabella Parks, Aaron Miller, John P. Mugler III, Talissa A. Altes, Robert P. Thomen   +8 more
wiley   +1 more source

Dead space in critical care: a practical approach with clinical scenarios. [PDF]

J Anesth Analg Crit Care
Cipulli F, Sanna A, Garberi R, Lassola S, Forcione M, Bellani G, Foti G, Rezoagli E.   +7 more
europepmc   +1 more source

Computed tomography for four‐dimensional dose calculation: Effect of detector array length

Journal of Applied Clinical Medical Physics, Volume 27, Issue 4, April 2026.
Abstract Purpose Four‐dimensional computed tomography (4DCT) is susceptible to a geometrical error when respiration changes upon patient shift. 4DCT using 16‐cm detector arrays, not needing the shift, has been shown to improve geometrical accuracy, compared with a conventional 4DCT (4‐cm array), albeit with some Hounsfield unit discrepancies. The 4DCTs
Inhwan Yeo, Qianyi Xu
wiley   +1 more source

A Ppb-level MIR-PAS for ¹²CO₂/¹³CO₂ isotope analysis toward on-line breath-based H. pylori sensing. [PDF]

Photoacoustics
Yang Y, Yin X, Yang X, Dong W, Gu J, Yang J, Zhao W, Liu K, Li G.   +8 more
europepmc   +1 more source

The role of abdominal compression in the reduction of respiratory motion for cardiac radioablation

Journal of Applied Clinical Medical Physics, Volume 27, Issue 4, April 2026.
Abstract Background Research on cardiac radioablation (CR) has highlighted the importance of accounting for respiratory‐induced motion during treatment, promoting investigation into methods to reduce its impact. Purpose To investigate the efficacy of abdominal compression (AC) to reduce respiratory‐induced motion for CR patients by quantifying their ...
Jakob Marshall, Alanah Bergman, Tania Karan, Marc W. Deyell, Devin Schellenberg, Steven Thomas   +5 more
wiley   +1 more source

Toward a Fuller Integration of Respiratory Rhythms Into Research on Infant Vocal and Motor Development. [PDF]

Ann N Y Acad Sci
Fuchs S, Rubertus E, Koenig LL, Noiray A.   +3 more
europepmc   +1 more source

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

Advanced Science, Volume 13, Issue 19, 2 April 2026.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy, Heta Helakari, Tommi Väyrynen, Zalán Rajna, Niko Huotari, Lauri Raitamaa, Ville Isokoski, Matti Järvelä, Mika Kaakinen, Johanna Piispala, Mika Kallio, Vesa Korhonen, Tapio Seppänen, Vesa Kiviniemi   +13 more
wiley   +1 more source

Computational fluid dynamics simulation of upper airway flow and soft tissue deformation in a mouth-breathing patient: a case study. [PDF]

BMC Oral Health
Ji W, Xie W, Cui Y, Xing Y, Zhang Z, Luo Y, Zhang L.   +6 more
europepmc   +1 more source