Results 81 to 90 of about 42,461 (272)

NEUTRON MATTER – QUARK MATTER PHASE TRANSITION AND QUARK STAR [PDF]

International Journal of Modern Physics E, 1993
We consider the neutron matter and quark matter phase transition along with possible existence of hybrid quark stars. The equation of state for neutron matter is obtained using a nonperturbative method with pion dressing of the neutron matter and an analysis similar to that of symmetric nuclear matter. The quark matter sector is treated perturbatively
Mishra, H., Misra, S. P., Panda, P. K., Parida, B. K.   +3 more
openaire   +2 more sources

Commuting by bicycle (vs. by car) is associated with improved aerobic power, microvascular function and diminished CO2 output in the atmosphere

Experimental Physiology, EarlyView.
Abstract The study investigated whether bicycle compared with car commuting, over relatively small distances, has positive effects on physiological variables, cardiometabolic fitness and CO2 output in the atmosphere. Bike Commuters (11 M, 15 F; age [median value (interquartile range)] 51.5 (38.3–56.8) years; body mass index [BMI] 22.8 (21.0–24.1) kg m ...
Caterina Ursella, Giovanni Baldassarre, Lucrezia Zuccarelli, Federica Caponnetto, Francesco Curcio, Mattia D'Alleva, Maria De Martino, Elisabetta Fontanini, Andrea Palomba, Antonio Paolo Beltrami, Federico Formenti, Bruno Grassi   +11 more
wiley   +1 more source

New mass limit of a strange star admitting a colour flavor locked equation of state

European Physical Journal C: Particles and Fields, 2023
A class of strange stars is analysed in the present article in hydrostatic equilibrium, whose state is defined by a CFL phase equation of state. We have compared our results with those obtained from the MIT equation of state for strange quark matter ...
K. B. Goswami, A. Saha, P. K. Chattopadhyay, S. Karmakar   +3 more
doaj   +1 more source

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   +4 more sources

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

QUARK-CLUSTER STARS: THE STRUCTURE

International Journal of Modern Physics: Conference Series, 2013
The nature of pulsar-like compact stars is still in controversy although the first pulsar was found more than 40 years ago. Generally speaking, conventional neutron stars and non-mainstream quark stars are two types of models to describe the inner structure of pulsars, with the former composed mainly of hadrons and the latter of a peculiar kind of ...
Lai, Xiaoyu, Xu, Renxin
openaire   +2 more sources

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

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