Results 61 to 70 of about 1,287 (235)

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

Experimental 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, Travis Dylan Gibbons, Hannah Grace Caldwell, Connor A. Howe, Jennifer S. Duffy, Andrew R. Steele, Justin A. Monteleone, Jay M. J. R. Carr, Jodie Lauren Koep, Tenasia D. R. Monaghan, David B. MacLeod, Philip N. Ainslie   +11 more
wiley   +1 more source

Persistence of fatigue in the absence of pathophysiological mechanisms in some patients more than 2 years after the original SARS‐CoV‐2 infection

Experimental Physiology, EarlyView.
Abstract Following an acute infection with severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), a substantial percentage of patients report the persistence of debilitating symptoms, often grouped in a syndrome termed ‘long COVID’. We sought to identify potential pathophysiological mechanisms responsible for the persistence, in some long COVID ...
Giovanni Baldassarre, Lucrezia Zuccarelli, Thomas Favaretto, Caterina Ursella, Andrea Palomba, Paulo Cesar do Nascimento Salvador, Emanuela Sozio, Ernesto Crisafulli, Massimo Imazio, Carlo Tascini, Bruno Grassi   +10 more
wiley   +1 more source

Quark matter and quark stars in strong magnetic fields at finite temperature within the confined-isospin-density-dependent mass model

Physics Letters B, 2018
We study the properties of strange quark matter (SQM) and quark stars (QSs) in strong magnetic fields within the extended confined isospin-density-dependent mass (CIDDM) model including the temperature dependence of the equivalent mass for quarks.
Peng-Cheng Chu, Xiao-Hua Li, Hong-Yang Ma, Bin Wang, Yu-Min Dong, Xiao-Min Zhang   +5 more
doaj   +1 more source

PROPERTIES OF MAGNETIZED QUARK-HYBRID STARS [PDF]

International Journal of Modern Physics E, 2011
The structure of a magnetized quark-hybrid stars (QHS) is modeled using a standard relativistic mean-field equation of state (EoS) for the description of hadronic matter. For quark matter we consider a bag model EoS which is modified perturbatively to account for the presence of a uniform magnetic field.
Orsaria, Milva Gabriela, Ranea Sandoval, Ignacio Francisco, Vucetich, Héctor, Weber, Fridolin   +3 more
openaire   +4 more sources

Cardiopulmonary function in special operations forces compared to conventional infantry soldiers

Experimental Physiology, EarlyView.
Abstract Fitness is essential to military personnel in general, especially in the special operations forces (SOF), where the demanding tasks require a high level of physical fitness and mental robustness. However, little research has been done on SOF to characterise the putative underlying cardiopulmonary adaptations that distinguish them from ...
Rasmus Syberg Rasmussen, Jakob Solgaard Jensen, Iben Elmerdahl Rasmussen, Jacob Peter Hartmann, Clara Sofie Egeberg, Anna Agnes Lytzen, Klara Nielsen, Malte Lund Adamsen, Mads Fischer, Ronan M. G. Berg   +9 more
wiley   +1 more source

Hot Holographic 2-Flavor Quark Star

Universe
Applying the holographic 2-flavor Einstein–Maxwell-dilaton model, the parameters of which are fixed by lattice QCD, we extract the equations of state for hot quark–gluon plasma around the critical point at T=182 MeV, and have corresponding quark star ...
Le-Feng Chen, Jing-Yi Wu, Hao Feng, Tian-Shun Chen, Kilar Zhang   +4 more
doaj   +1 more source

Exploring the spin structure of the nucleon at STAR [PDF]

EPJ Web of Conferences
Understanding the internal spin structure of the nucleon remains a challenge in strong interaction physics. The unique capability of RHIC opened new avenues in studying the internal structure of the proton with unprecedented depth and precision ...
Lin Ting
doaj   +1 more source

A new method for non‐invasive determination of effective pulmonary blood flow and cardiac output in spontaneously breathing subjects

Experimental Physiology, EarlyView.
Abstract The differential Fick method is well established for measuring effective pulmonary blood flow (EPBF) and cardiac output (CO) but until now it has only been used for patients on mechanical ventilation. Here we present and evaluate a new approach adapted to spontaneous breathing situations.
Andras Gedeon, Jakob Jansson, David Patrickson, Mats Wallin   +3 more
wiley   +1 more source

Proto-strange quark stars from density-dependent quark mass model

European Physical Journal C: Particles and Fields
In this paper, we investigate the evolution of strange quark stars (SQS) from birth as proto-strange quark stars to maturity as stable SQSs at a zero temperature.
Adamu Issifu, Franciele M. da Silva, Débora P. Menezes   +2 more
doaj   +1 more source

Holographic Quark Matter and Neutron Stars [PDF]

Physical Review Letters, 2016
We use a top-down holographic model for strongly interacting quark matter to study the properties of neutron stars. When the corresponding Equation of State (EoS) is matched with state-of-the-art results for dense nuclear matter, we consistently observe a first order phase transition at densities between two and seven times the nuclear saturation ...
Hoyos, Carlos, Jokela, Niko, Rodriguez Fernandez, David, Vuorinen, Aleksi   +3 more
openaire   +4 more sources