Results 71 to 80 of about 42,461 (272)

Quark stars: features and findings [PDF]

The European Physical Journal C, 2006
Under extreme conditions of temperature and/or density, quarks and gluons are expected to undergo a deconfinement phase transition. While this is an ephemeral phenomenon at the ultra-relativistic heavy-ion collider (BNL-RHIC), quark matter may exist naturally in the dense interior of neutron stars.
openaire   +2 more sources

The Role of Brain Structure in Explaining Physical Functioning in Male Veterans With Impaired Kidney Function

Journal of the American Geriatrics Society, EarlyView.
Brain structure as a mediator of the relationship of impaired kidney function and physical function. ABSTRACT Background Older adults with chronic kidney disease (CKD) experience deficits in physical function and cardiorespiratory fitness at higher rates than older adults without impaired renal function.
Julie S. Rekant, Hinza B. Malik, Jamie E. Giffuni, Shari R. Waldstein, Kelly P. Westlake, Christos Davatzikos, Guray Erus, Stephen L. Seliger   +7 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, Salvatore Capozziello, Sergei D. Odintsov   +2 more
doaj   +1 more source

Impact of a 12‐week high‐intensity interval training intervention on cardiac structure and function after COVID‐19 at 12‐month follow‐up

Experimental Physiology, EarlyView.
Abstract In patients previously hospitalised for COVID‐19, a 12‐week high‐intensity interval training (HIIT) intervention has previously been shown to increase left ventricular mass (LVM) immediately after the intervention. In the present study, we examined the effects of the same HIIT scheme on LVM, pulmonary diffusing capacity, symptom severity and ...
Iben Elmerdahl Rasmussen, Mathilde Løk, Cody Garett Durrer, Anna Agnes Lytzen, Frederik Foged, Vera Graungaard Schelde, Josephine Bjørn Budde, Rasmus Syberg Rasmussen, Emma Fredskild Høvighoff, Villads Rasmussen, Mark Lyngbæk, Simon Jønck, Rikke Krogh‐Madsen, Birgitte Lindegaard, Peter Godsk Jørgensen, Lars Køber, Niels Vejlstrup, Bente Klarlund Pedersen, Mathias Ried‐Larsen, Morten Asp Vonsild Lund, Ronan M. G. Berg, Regitse Højgaard Christensen   +21 more
wiley   +1 more source

The spin parameter of uniformly rotating compact stars

, 2011
We study the dimensionless spin parameter $j (= c J/ (G M^2))$ of uniformly rotating neutron stars and quark stars in general relativity. We show numerically that the maximum value of the spin parameter of a neutron star rotating at the Keplerian ...
Andersson, Baldo, Bonazzola, Chandrasekhar, Chandrasekhar, Dicke, Gourgoulhon, Haensel, Haensel, Ka-Wai Lo, Kato, Koranda, Kraft, Kraft, Lap-Ming Lin, Miller, Pandharipande, Penrose, Salgado, Shibata, Shibata, Steiner, Stella, Stergioulas, Stergioulas, Török, van der Klis, Wald, Weber   +28 more
core   +1 more source

The Equation of State for Dense QCD and Quark Stars [PDF]

, 2002
We calculate the equation of state for degenerate quark matter to leading order in hard-dense-loop (HDL) perturbation theory. We solve the Tolman-Oppenheimer-Volkov equations to obtain the mass-radius relation for dense quark stars. Both the perturbative
A. Peshier, A.D. Linde, B. Kastening, B.A. Freedman, B.A. Freedman, B.A. Freedman, B.A. Freedman, D.E. Groom, D.T. Son, E. Braaten, E. Braaten, E.S. Fraga, F. Karsch, F. Wilczek, G. Rodrigo, H. Heiselberg, H. Satz, H.A. Weldon, J. Cleymans, J.-P. Blaizot, J.-P. Blaizot, J.-P. Blaizot, J.J. Drake, J.O. Andersen, J.O. Andersen, J.O. Andersen, J.O. Andersen, Jens O. Andersen, Michael Strickland, P. Arnold, P. Arnold, R. Baier, R.D. Pisarski, V. Baluni, V.V. Klimov   +34 more
core   +3 more sources

Early quark deconfinement in compact star astrophysics and heavy-ion collisions [PDF]

, 2022
O. Ivanytskyi, Daveid Blaschke, Tobias Fischer, Andreas Bauswein   +3 more
openalex   +1 more source

Impact of exercise training on tumour‐infiltrating T cells in human prostate cancer: A secondary analysis of a randomized controlled trial (PRO‐TEST)

Experimental Physiology, EarlyView.
Abstract Exercise training reduces tumour growth by increasing tumour‐infiltrating T‐cell density in preclinical models. However, it remains unknown whether exercise training can modify intratumoural T cells in humans.The aim of this study was to compare the effects of an exercise training intervention versus control on human prostate intratumoural T ...
Simon Nørskov Thomsen, Emil Wriedt, Marianne Gardar Stærk, Sissal Sigmundsdottir Djurhuus, Birgitte Grønkær Toft, Sabrina Wielsøe, Andreas Røder, Thomas Hasselager, Peter Busch Østergren, Henrik Jakobsen, Klaus Brasso, Jesper Frank Christensen, Louise Lang Lehrskov, Casper Simonsen   +13 more
wiley   +1 more source

Quark matter nucleation in neutron stars and astrophysical implications [PDF]

, 2016
A phase of strong interacting matter with deconfined quarks is expected in the core of massive neutron stars. We investigate the quark deconfinement phase transition in cold (T = 0) and hot beta-stable hadronic matter.
Bombaci, Ignazio, Logoteta, Domenico, Providencia, Constanca, Vidana, Isaac   +3 more
core   +3 more sources

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