Results 101 to 110 of about 41,644 (263)

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

1-2-3-flavor color superconductivity in compact stars

, 2008
We suggest a scenario where the three light quark flavors are sequentially deconfined under increasing pressure in cold asymmetric nuclear matter, e.g., as in neutron stars. The basis for our analysis is a chiral quark matter model of Nambu--Jona-Lasinio
Alford M G Schmitt A Rajagopal K Schäfer T, Blaschke D, Blaschke D Sandin F Klähn T Berdermann J, David Blaschke, Drago A, Fredrik Sandin, Lawley S, Page D, Thomas Klähn   +8 more
core   +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   +5 more sources

Arterial–venous differences of brain‐derived neurotrophic factor isoforms across the brain and muscle after exercise at different intensities

The Journal of Physiology, EarlyView.
Abstract figure legend Exercise‐induced increases in forearm venous plasma and serum brain‐derived neurotrophic factor (BDNF) are often assumed to be indicative of release from the brain. Sixteen healthy and physically fit adults (20–40 years old) were recruited to investigate whether exercise‐induced changes in forearm venous mature BDNF (mBDNF) and ...
Olga Tarassova, Yiwen Jiang, Helena Wallin, Mats Jensen‐Urstad, Nikola Drca, Julia Röja, Marjan Pontén, Abram Katz, Jonna Nilsson, Maria M. Ekblom, Marcus Moberg   +10 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

Neutron stars and quark matter [PDF]

AIP Conference Proceedings, 2007
To be published in the proceedings of Quark Confinement and the Hadron Spectrum VII, Sept. 2006, Ponta Delgada, Azores.
openaire   +3 more sources

Non‐invasive assessment of integrated cardiorespiratory network dynamics after physiological stress in humans

The Journal of Physiology, EarlyView.
Abstract figure legend This study aimed to develop a non‐invasive method for visualizing the cardiorespiratory network under baseline conditions and following isolated or combined exposure to hypoxia, exercise, and sleep deprivation. Twenty‐two healthy participants underwent assessments at rest and after normobaric hypoxia (FIO2${{F}_{{\mathrm{I ...
Cecilia Morandotti, Louise Rigny, Thomas B. Williams, Juan I. Badariotti, Matt Miller‐Dicks, Amar S. Bhogal, Shachula Han, Jo Corbett, Michael J. Tipton, Joseph T. Costello, Ali R. Mani   +10 more
wiley   +1 more source

Hybrid stars that masquerade as neutron stars

, 2004
We show that a hybrid (nuclear + quark matter) star can have a mass-radius relationship very similar to that predicted for a star made of purely nucleonic matter. We show this for a generic parameterization of the quark matter equation of state, and also
Baldo M., Mark Alford, Mark Paris, Matt Braby, Reddy S., Sanjay Reddy   +5 more
core   +1 more source

Preferential lactate metabolism in the human brain during exogenous and endogenous hyperlactataemia

The Journal of Physiology, EarlyView.
Abstract figure legend Trans‐cerebral blood sampling of arterial and jugular venous blood samples, combined with duplex ultrasound, were used to calculate cerebral metabolic rates of glucose (CMRGlc) lactate (CMRiLac) and oxygen (CMRO2${\mathrm{CM}}{{\mathrm{R}}_{{{\mathrm{O}}_2}}}$).
Jodie L. Koep, Jennifer S. Duffy, Jay M. J. R. Carr, Madden L. Brewster, Jordan D. Bird, Justin A. Monteleone, Tenasia D. R. Monaghan, Hashim Islam, Andrew R. Steele, Connor A. Howe, David B. MacLeod, Philip N. Ainslie, Travis D. Gibbons   +12 more
wiley   +1 more source

Quark neutron layer stars

The Astrophysical Journal, 1993
Typical nuclear equations of state and a quark bag model, surprisingly, allow compact stars with alternate layers of neutrons and quarks. One can determine on the basis of the Gibbs free energy which phase, nuclear or quark, is energetically favorable.
openaire   +4 more sources