Results 81 to 90 of about 1,078 (229)
Strange Quark Stars — A Review [PDF]
Symposium - International Astronomical Union, 2003 A pedagogical overview of strange quark matter and strange stars is presented. After a historical notation of the research and an introduction to quark matter, a major part is devoted to the physics and astrophysics of strange stars, with attention being paid to the possible ways by which neutron stars and strange stars can be distinguished in ...
openaire +2 more sources
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 +3 more
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Could the compact remnant of SN 1987A be a quark star? [PDF]
, 2009 The standard model for Type II supernovae explosions, confirmed by the detection of neutrinos emitted during the supernova explosion, predicts the formation of a compact object, usually assumed to be a neutron star.
Suen, WM +13 more
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Experimental Physiology, EarlyView.Abstract Regular exercise using assistive movement devices, such as running frames, has emerged as a promising strategy to improve cardiorespiratory fitness in individuals with cerebral palsy (CP). However, the molecular pathways underlying these adaptations remain poorly understood.
Oscar Horwath +11 more
wiley +1 more source
Combustion of a hadronic star into a quark star: The turbulent and the diffusive regimes [PDF]
, 2015 We argue that the full conversion of a hadronic star into a quark or a hybrid star occurs within two different regimes separated by a critical value of the density of the hadronic phase nh ̄. The first stage, occurring for nh>nh ̄, is characterized by
PAGLIARA, Giuseppe, DRAGO, Alessandro
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Experimental Physiology, EarlyView.Abstract The clinical assessment of cardiovascular function during exercise using stress echocardiography is essential for accurate cardiac diagnosis. However, normal limitations of cardiac deformation responses to increasing physical exertion remain poorly understood.
Fabian Spahiu +4 more
wiley +1 more source
Nonperturbative models of quark stars in f(R) gravity
Physics Letters B, 2015 Quark star models with realistic equation of state in nonperturbative f(R) gravity are considered. The mass-radius relation for f(R)=R+αR2 model is obtained.
Artyom V. Astashenok +2 more
doaj +1 more source
Experimental Physiology, EarlyView.Abstract High‐intensity endurance exercise induces myocardial remodelling as an adaptive response to sustained volume overload, but excessive cumulative training might also favour deleterious cardiac remodelling, including atrial fibrosis. Whether acute marathon running engages circulating fibrosis‐related biomarkers and whether these biomarkers track ...
Felipe Contreras‐Briceño +6 more
wiley +1 more source
Experimental Physiology, EarlyView.Abstract Menopause increases coronary heart disease risk, in part through reduced oestrogen‐mediated nitric oxide (NO) bioavailability. The Buckberg ratio, an index of myocardial oxygen supply–demand balance, in which higher values reflect more favourable myocardial perfusion, is lower in postmenopausal females (PMFs) than in age‐matched males.
Cassandra C. Derella +6 more
wiley +1 more source
Effect of color superconductivity on the mass and radius of a quark star [PDF]
, 2007 We compare quark stars made of color-superconducting quark matter to normal-conducting quark stars. We focus on the most simple color-superconducting system, a two-flavor color superconductor, and employ the Nambu-Jona-Lasinio (NJL) model to compute the ...
Rüster, Stefan Bernhard +1 more
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