Results 41 to 50 of about 1,222 (198)

Locomotor muscle dysfunction and rehabilitative exercise training in fibrotic interstitial lung disease: Where are we at and where could we go?

open access: yesExperimental Physiology, EarlyView.
Abstract Exercise limitation is a cardinal feature of fibrotic interstitial lung disease arising from pulmonary gas exchange, respiratory mechanical and cardio‐circulatory abnormalities. More recently, it has been recognized that impairment in locomotor muscle function (e.g., reduced muscle mass/strength or heightened fatigability) might also play a ...
Sarah Thivent   +7 more
wiley   +1 more source

Design of a Near Infrared Spectrophotometry Brain Imaging System [PDF]

open access: yes, 2010
Measuring brain activity is at task generally left for EEG or fMRI. However, there is a lesser known imaging technique known as near infrared spectrophotometry, in which near infrared light is shown into the patients head to measure changes in ...
Basuta, Sukneet
core  

Absorption spectra of human fetal and adult oxyhemoglobin, de-oxyhemoglobin, carboxyhemoglobin, and methemoglobin

open access: yesClinical Chemistry, 1991
Abstract We determined the millimolar absorptivities of the four clinically relevant derivatives of fetal and adult human hemoglobin in the visible and near-infrared spectral range (450-1000 nm). As expected, spectral absorption curves of similar shape were found, but the small differences between fetal and adult hemoglobin absorptivity ...
Zijlstra, W.G.   +2 more
openaire   +2 more sources

Confined spaces in space: Cerebral implications of chronic elevations of inspired carbon dioxide and implications for long‐duration space travel

open access: yesExperimental Physiology, EarlyView.
Abstract Cerebrovascular regulation is critically dependent upon the arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_{\mathrm{2}}}}}$), owing to its effect on cerebral blood flow, tissue PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_{\mathrm{2}}}}}$, tissue proton concentration, cerebral metabolism and cognitive and neuronal ...
Jay M. J. R. Carr   +2 more
wiley   +1 more source

Pathogenesis of gas bubble trauma in rainbow trout (salmo gairdneri) [PDF]

open access: yes, 1988
Thesis (Ph. D.)--Michigan State University.
Machado, Joao Paciano
core   +2 more sources

The acute effect of two exercise modalities on neurocognitive responses in postmenopausal women: A randomized controlled trial

open access: yesExperimental Physiology, EarlyView.
Abstract Menopause‐related cognitive decline, often worsened by vasomotor symptoms (VMS), might be mitigated by high cardiorespiratory fitness (CRF). Although acute exercise supports neurocognitive function, its effects vary by exercise and individual characteristics.
Morgane Le Bourvellec   +4 more
wiley   +1 more source

Cerebral oxygen extraction across different exercise intensities: Role of arterial PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_2}}}$

open access: yesExperimental Physiology, EarlyView.
Abstract Stability in cerebral oxygen extraction fraction (OEF) is typically determined by alterations in cerebral blood flow (CBF). At rest, arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_2}}}$) and OEF exhibit a strong inverse relationship owing to the powerful influence of PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_2}}}$
L. Madden Brewster   +11 more
wiley   +1 more source

The Occurrence and Characterization of Hemoglobin from Different Strains of Genetically Diverse, Free-Living Frankia [PDF]

open access: yes, 2002
Hemoglobins have been identified in root nodules of many actinorhizal plants. When cultured in vitro, the actinomycete Frankia strain CcI3 produces hemoglobin when grown with or without supplied nitrogen. The cyanobacterium, Nostoc commune, also produces
Beckwith, Jason
core   +1 more source

Increases in skin perfusion and blood oxygen in the non‐exercising human limbs during exercise in the heat: Implications for control of circulation

open access: yesExperimental Physiology, EarlyView.
Abstract Blood flow in the inactive limb tissues and skin is widely thought to decline during incremental exercise to exhaustion due to augmented sympathoadrenal vasoconstrictor activity, but direct evidence to support this view is lacking. Here, we investigated the inactive‐forearm haemodynamic (Q̇forearm${\dot{Q}}_{\mathrm{forearm}}$) and oxygenation
Steven J. Trangmar   +1 more
wiley   +1 more source

Chemical restraint of jaguars Panthera onca Linnaeus, 1758 with allometrically scaled doses of tiletamine, zolazepam, detomidine, and atropine [PDF]

open access: yes, 2018
Chemical restraint of large felids is necessary for the handling, transportation, clinical assessment, and induction of anesthesia. The objective of this study was to evaluate the efficacy and safety of chemical restraint using a combination of ...
André Luiz Quagliatto Santos   +4 more
core   +3 more sources

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