Results 71 to 80 of about 41,644 (263)

How strange are compact star interiors ?

, 2010
We discuss a Nambu--Jona-Lasinio (NJL) type quantum field theoretical approach to the quark matter equation of state with color superconductivity and construct hybrid star models on this basis.
Ambartsumyan V A, Baldo M Burgio G F Schulze H J, Blaschke D, Blaschke D B, D Blaschke, F Sandin, Freire P C Nice D Lattimer J Stairs I Arzoumanian Z Cordes J Deneva J, Gocke C Blaschke D Khalatyan A Grigorian H, R Łastowiecki, T Klähn, Thorsett S E   +10 more
core   +1 more source

Predators and scavengers: Polar bears as marine carrion providers

Oikos, EarlyView.
Scavenging is a foraging strategy widely used across the animal kingdom and apex predators provide a large amount of energy in a food web by provisioning carrion. In the harsh environmental conditions of the Arctic, apex predators such as polar bears Ursus maritimus can provide scavenging opportunities for many species. Carrion can act as a buffer when
Holly E. L. Gamblin, Andrew E. Derocher, Evan S. Richardson, David McGeachy, James D. Roth, Nicholas W. Pilfold   +5 more
wiley   +1 more source

Radioactivity of quark nuggets

Journal of High Energy Physics
Quark nuggets Q Z A $$ {}_{\textrm{Z}}{}^{\textrm{A}}\textrm{Q} $$ , as Fermionic non-topological solitons, could have their mass per baryon smaller than ordinary nuclei and behave as exotic nuclei with different relations of atomic number and atomic ...
Yang Bai, Mrunal Korwar
doaj   +1 more source

Quark-hybrid matter in the cores of massive neutron stars [PDF]

, 2012
Using a nonlocal extension of the SU(3) Nambu-Jona Lasinio model, which reproduces several of the key features of Quantum Chromodynamics, we show that mixed phases of deconfined quarks and confined hadrons (quark-hybrid matter) may exist in the cores of ...
Contrera, G. A., Orsaria, M., Rodrigues, H., Weber, F.   +3 more
core   +2 more sources

Peri‐operative rehabilitation in patients undergoing elective cardiac valve surgery: a randomised controlled trial

Anaesthesia, EarlyView.
Summary Introduction Patients with valvular heart disease are at high risk of postoperative pulmonary complications, which contribute to morbidity and mortality. However, few studies have focused specifically on peri‐operative rehabilitation in this patient population.
Yuting Liu, Fengyao Liu, Mingyu Xu, Haofeng Zhou, Haochen Wang, Yuanhui Liu, Xuyu He, Huanlei Huang, Tucheng Sun, Xuhua Jian, Jimei Chen, Min Wu, Yijia Sun, Peihua Cao, Jiyan Chen, Lan Guo, Huan Ma   +16 more
wiley   +1 more source

The mixed phase quark core in massive hybrid stars

European Physical Journal C: Particles and Fields
We investigate the properties of hybrid star and the mixed phase core to explore the radius ratio of the mixed phase in hybrid star. In the context of observed massive neutron stars (NSs), we examine the internal structure, phase transitions, and the ...
Xuhao Wu, Peng-Cheng Chu, Min Ju, He Liu
doaj   +1 more source

Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray Bursts

Advances in Astronomy, 2009
If a quark-nova occurs inside a collapsar, the interaction between the quark-nova ejecta (relativistic iron-rich chunks) and the collapsar envelope leads to features indicative of those observed in Gamma Ray Bursts.
Rachid Ouyed, Denis Leahy, Jan Staff, Brian Niebergal   +3 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

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

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