Results 111 to 120 of about 142,364 (240)

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

open access: yesThe 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   +10 more
wiley   +1 more source

Single Top as Window on Heavy Quarks and Other New Physics

open access: yesAdvances in High Energy Physics, 2013
This paper discusses what the study of the electroweak production of single top quarks can tell us about additional quark generations, and how to distinguish the new quarks hypothesis from other kinds of new physics. We also suggest some new studies that
Andrea Giammanco
doaj   +1 more source

Why Quarks Are Unobservable

open access: yesPhilosophia Scientiæ, 2009
This essay deals with the question whether quarks—the basic components of matter and one of the youngest confirmed particles in high energy physics—can be observed directly or indirectly.
Tobias Fox
doaj   +1 more source

Females exhibit greater cardiac volume reductions with expiratory muscle loading during submaximal exercise compared to males

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Intrathoracic pressure (ITP) manipulation during submaximal exercise reveals load‐ and sex‐specific cardiac volume responses. Inspiratory loading increased oesophageal pressure swings and the work of breathing (Wb) but did not alter stroke volume (SV) or ventricular volumes in males or females.
Sarah A. Angus   +6 more
wiley   +1 more source

Search for vector-like T quarks decaying to top quarks and Higgs bosons in the all-hadronic channel using jet substructure

open access: yes, 2015
A bstractA search is performed for a vector-like heavy T quark that is produced in pairs and that decays to a top quark and a Higgs boson. The data analysed correspond to an integrated luminosity of 19.7 fb−1 collected with the CMS detector in proton ...
V. Khachatryan   +499 more
semanticscholar   +1 more source

Metformin attenuates metabolic insulin sensitivity and insulin‐stimulated carbohydrate oxidation after high‐intensity exercise training in adults at risk for metabolic syndrome

open access: yesDiabetes, Obesity and Metabolism, Volume 28, Issue 4, Page 2941-2952, April 2026.
Abstract Aims Mixed evidence exists on whether metformin adds to or attenuates the insulin‐sensitising effects of exercise. To date, no studies have tested whether metformin differentially impacts exercise training intensity–mediated insulin sensitivity.
Steven K. Malin   +7 more
wiley   +1 more source

Non‐Invasive Estimation of the Upper Boundary of the Severe Intensity Exercise Domain: The Maximal Accumulated Oxygen Deficit Method

open access: yesEuropean Journal of Sport Science, Volume 26, Issue 3, March 2026.
ABSTRACT The aim of this study was to evaluate whether the highest power output at which the predominant energy contribution is derived from the aerobic system (aerobic limit power: ALP), as estimated using maximal accumulated O2 deficit (MAOD) method, corresponds to the upper boundary of the severe intensity exercise domain. Thirteen males completed: (
Arda Peker   +3 more
wiley   +1 more source

CLASSIFICATION OF PARTICLES AT ARBITRARY QUANTITY OF GENERATIONS. II. LEPTONS

open access: yesEast European Journal of Physics, 2017
The hypothesis on quark nature of the leptons is proposed. Leptons are compacted q3 -systems. It ensures the equality of modules for the electric charges of the proton and the electron. The classification of particles based on the U(Nf,g)×SU(3,c)×SU(4,fs)
Yu. V. Kulish
doaj  

calculation of B → D*lv form factor at zero recoil using the Oktay-Kronfeld action

open access: yesEPJ Web of Conferences, 2018
We present the first preliminary results for the semileptonic form factor hA1 (w = 1)/ρAj at zero recoil for the B → D*lv decay using lattice QCD with four flavors of sea quarks.
Bailey Jon A.   +7 more
doaj   +1 more source

Neue Methode zum Neutrinonachweis: Kohärente Streuung von Neutrinos an Atomkernen

open access: yesPhysik in unserer Zeit, Volume 57, Issue 2, Page 79-83, March 2026.
Neutrinos sind sehr schwer nachweisbare Elementarteilchen, die selbst in riesigen Experimenten kaum Spuren hinterlassen. Nun ist es erstmalig gelungen, diese winzigen Teilchen mit einer vergleichsweise kleinen Messapparatur an einem Kernreaktor über die sogenannte kohärente elastische Neutrino‐Kern‐Streuung zu beobachten. Zusammenfassung Neutrinos sind
Christian Buck, Manfred Lindner
wiley   +1 more source

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