Results 121 to 130 of about 4,696,479 (281)

Gauge fields in a string-cigar braneworld

Physics Letters B, 2015
In this work, we investigate the properties of the Abelian gauge vector field in the background of a string-cigar braneworld. Both the thin and thick brane limits are considered.
F.W.V. Costa, J.E.G. Silva, D.F.S. Veras, C.A.S. Almeida   +3 more
doaj   +1 more source

Singularities of Connection Ricci Flow and Ricci Harmonic Flow

, 2013
In this paper, we study the singularities of two extended Ricci flow systems --- connection Ricci flow and Ricci harmonic flow using newly-defined curvature quantities. Specifically, we give the definition of three types of singularities and their corresponding singularity models, and then prove the convergence. In addition, for Ricci harmonic flow, we
openaire   +2 more sources

Mass Under the Ricci Flow

Communications in Mathematical Physics, 2007
In this paper, we study the change of the ADM mass of an ALE space along the Ricci flow. Thus we first show that the ALE property is preserved under the Ricci flow. Then, we show that the mass is invariant under the flow in dimension three (similar results hold in higher dimension with more assumptions).
Dai, Xianzhe, Ma, Li
openaire   +3 more sources

Ageing attenuates regional vasoconstriction during acute lowering of upper and lower limbs

Experimental Physiology, EarlyView.
Abstract The venoarteriolar and myogenic response (VMR) is a non‐adrenergic, non‐baroreflex‐mediated mechanism that increases local vascular resistance and contributes to blood pressure (BP) regulation during orthostasis. Despite the importance of the VMR in human cardiovascular control, no information exists elucidating possible differences in the VMR
John D. Akins, Jeung‐Ki Yoo, Dan‐Dan Sun, Rosemary S. Parker, Marcus A. Urey, Steven A. Romero, Justin S. Lawley, Satyam Sarma, Wanpen Vongpatanasin, Craig G. Crandall, Qi Fu   +10 more
wiley   +1 more source

Spontaneous Ca2+ signals in the developing mammalian cochlea of live mice under different anaesthetic regimes

Experimental Physiology, EarlyView.
Abstract The pre‐hearing mouse cochlea undergoes critical periods of spontaneous Ca2+‐dependent activity that spreads across non‐sensory supporting cells and inner hair cells (IHCs). These signals have been shown to regulate not only the refinement of neural circuits along the auditory pathway towards functional maturity, but also the maturation of the
Francesca De Faveri, Walter Marcotti, Federico Ceriani   +2 more
wiley   +1 more source

Generalized Sasakian Space-Forms with Beta-Kenmotsu Structure and Ricci Solitons [PDF]

International Journal of Mathematical, Engineering and Management Sciences
We explore the properties of almost Ricci solitons and the gradient Ricci solitons on generalized Sasakian-space-forms with beta-Kenmotsu structure. We consider almost Ricci solitons on generalized Sasakian-space-forms with beta-Kenmotsu structure when ...
Sudhakar Kumar Chaubey, Kawthar Al-Ajmi, Ganesh Prasad Pokhariyal, Devendra Kumar   +3 more
doaj   +1 more source

Collapsed ancient solutions of the Ricci flow on compact homogeneous spaces [PDF]

, 2021
Francesco Pediconi, Sammy Sbiti
openalex   +1 more source

The RhoA guanine exchange factor ABR: a glucose‐sensitive mediator of actin reorganization in feto‐placental arterial endothelial cells altered by gestational diabetes mellitus

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic representation of proposed relationship between hyperglycaemia, gestational diabetes mellitus (GDM), active BCR‐related (ABR), RhoA and actin organization of feto‐placental arterial endothelial cells (fpEC). Hyperglycaemia upregulates ABR, which in turn increases RhoA activation.
Silvija Tokic, Boris Novakovic, Barbara Leopold‐Posch, Magdalena Mühlberger, Denise Hoch, Jelena Lögl, Eva M. Bernhart, Richard Saffery, Gernot Desoye, Ursula Hiden   +9 more
wiley   +1 more source

Second Ricci flow on noncompact Hermitian manifolds [PDF]

, 2021
Man-Chun Lee
openalex   +1 more source

Determining properties of human‐induced pluripotent stem cell‐derived cardiomyocytes using spatially resolved electromechanical metrics

The Journal of Physiology, EarlyView.
Abstract figure legend In this study, we use human‐induced pluripotent stem cell‐derived cardiomyocyte (hiPSC‐CM) experiments and computational modelling to identify the mechanism of action of drug compounds. In the hiPSC‐CM experiments, optical measurements of cell collections are recorded in the baseline case and after drug exposure.
Karoline Horgmo Jæger, Verena Charwat, Kevin E. Healy, Samuel Wall, Aslak Tveito   +4 more
wiley   +1 more source