Results 61 to 70 of about 50,980 (246)

Collapsing spherical star in Scalar-Einstein-Gauss-Bonnet gravity with a quadratic coupling

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We study the evolution of a self interacting scalar field in Einstein-Gauss-Bonnet theory in four dimension where the scalar field couples non minimally with the Gauss-Bonnet term.
Soumya Chakrabarti
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Bumping into the Species Scale with the Scalar Potential

open access: yesFortschritte der Physik, 2023
AbstractAs a quantum gravity cut‐off, the species scale gets naturally compared to the energy scale of a scalar potential V in an EFT. In this note, the species scale, its rate and their field dependence, to those of a scalar potential is compared. To that end, a string compactification leading to a scalar potential with the same properties as the ...
openaire   +3 more sources

Efficient computation of source magnetic scalar potential [PDF]

open access: yesAdvances in Radio Science, 2006
Magnetic field problems are often excited by a known source field which itself is caused by free currents. Some formulations to solve the problem require knowledge of the source magnetic scalar potential whose gradient is the source field. In general, it
W. Hafla, A. Buchau, W. M. Rucker
doaj  

Asymptotic homogenization in the determination of effective intrinsic magnetic properties of composites

open access: yesResults in Physics, 2023
We present a computational framework for two-scale asymptotic homogenization to determine the intrinsic magnetic permeability of composites. To this end, considering linear magnetostatics, both vector and scalar potential formulations are used.
Celal Soyarslan   +3 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Scalar-hairy AdS black hole in the Einstein–Maxwell-scalar theory: first-order phase transition with a critical point

open access: yesEuropean Physical Journal C: Particles and Fields
In asymptotically anti-de Sitter (AdS) spacetime, we consider a real massive scalar field in the Einstein–Maxwell-Scalar (EMS) model and examine both scalar-hairy black hole solutions induced by the nonminimal coupling to the Maxwell field and tachyonic ...
Hong Guo, Hang Liu, Yun Soo Myung
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

A cornucopia of AdS5 vacua

open access: yesJournal of High Energy Physics, 2020
We report on a systematic search for AdS5 vacua corresponding to critical points of the potential in the five-dimensional N $$ \mathcal{N} $$ = 8 SO(6) gauged supergravity.
Nikolay Bobev   +3 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

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