Results 71 to 80 of about 95,225 (248)

Quark and Creativity [PDF]

open access: yes2019 8th Mediterranean Conference on Embedded Computing (MECO), 2019
This short address covers issues of importance for the discovery of quark and puts stress on the process of inducing the creativity that led to this great invention, treated as the most crucial for the further development of various brances of physics.
Jerome Friedman, Nobel Laureate
openaire   +1 more source

On the Naturalistic Grounds of Grounding

open access: yesRatio, EarlyView.
ABSTRACT This paper examines whether grounding can be naturalized. We adopt a tripartite framework—Ocat (scientific catalogue of existents), Otyp (ontological types), and metaphysics (natures/modal profiles)—and show that classifying as such the relata of putative grounding claims forces a dilemma.
Raoni Arroyo, Jonas R. Becker Arenhart
wiley   +1 more source

Cerebral oxygen extraction across different exercise intensities: Role of arterial PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_2}}}$

open access: yesExperimental 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   +11 more
wiley   +1 more source

Evaluation of the two lightest quark masses

open access: yesЯдерна фізика та енергетика, 2017
Simple relations between the masses of the two lightest up and down quarks were obtained on the basis of the simple physically based model compatible with the present-day theory of strong interactions, i.e. with quantum chromodynamics.
V. A. Babenko, N. M. Petrov
doaj  

3D structure of jet-induced diffusion wake [PDF]

open access: yesEPJ Web of Conferences
Jet-induced diffusion wake in heavy-ion collisions has a unique 3D structure as manifested in the jet-hadron correlations in rapidity and azimuthal angle.
Yang Zhong   +3 more
doaj   +1 more source

Eight weeks of post‐exercise local heating does not improve cognition and plasma brain‐derived neurotrophic factor concentrations

open access: yesExperimental Physiology, EarlyView.
Abstract Exercise and heat stress have been reported to independently provide benefits to brain health. We tested the hypothesis that 8 weeks of post‐exercise local heating, passive local heating only, or exercise training only improves cognitive performance compared to a control group.
Jem L. Cheng   +6 more
wiley   +1 more source

Sex differences in the prefrontal cortex and muscle oxygenation during exercise until exhaustion in endurance‐trained individuals

open access: yesExperimental Physiology, EarlyView.
Abstract figure legend During cardiopulmonary exercise testing, the decline in oxygenation in the prefrontal cortex of women is striking. This crucial brain area is directly involved in planning motor tasks. The decline is particularly pronounced at higher exercise intensities, especially after reaching the respiratory compensation point or anaerobic ...
Daniel Ramos‐López   +12 more
wiley   +1 more source

Finite corrections to quark fragmentation functions in perturbative QCD

open access: yes, 1979
Baier R, Fey K. Finite corrections to quark fragmentation functions in perturbative QCD. Zeitschrift für Physik C: Particles and fields.
Baier, Rudolf, Fey, K.
core   +1 more source

Identification of the individual cardiac contraction threshold during high‐frame‐rate stress echocardiography

open access: yesExperimental 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

Power-aligned 2HDM: a correlative perspective on (g − 2) e,μ

open access: yesJournal of High Energy Physics, 2021
With the hypothesis of minimal flavor violation, we find that there exists a power-aligned relation between the Yukawa couplings of the two scalar doublets in the two-Higgs-doublet model with Hermitian Yukawa matrices.
Shao-Ping Li   +4 more
doaj   +1 more source

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