Results 51 to 60 of about 113,827 (266)

Extra dimensions in the early universe [PDF]

Physics Letters B, 2000
9 pages, 1 figure.
Buettner, Douglas J., Morley, P. D., Schmidt, Ivan   +2 more
openaire   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Non-trivial thick brane realisations with 3-forms

Journal of High Energy Physics
We explore the construction of four-dimensional thick branes supported by massless 3-forms in a five-dimensional bulk space. The required residual Poincaré symmetry on the brane is realised as a combination of the bulk symmetries and the internal gauge ...
Bruno J. Barros, Jose Beltrán Jiménez
doaj   +1 more source

Dark energy, extra dimensions, and the Swampland

Journal of High Energy Physics, 2020
Perhaps the greatest challenge for fundamental theories based on compactification from extra dimensions is accommodating a period of accelerated cosmological expansion.
Gabriele Montefalcone, Paul J. Steinhardt, Daniel H. Wesley   +2 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Gravitational echoes from braneworlds

Journal of High Energy Physics
Gravitational echoes can be used to probe the structure of spacetime. In this paper, we investigate the gravitational echoes in different braneworld models in five-dimensional spacetime. We derive the gravitational perturbation equations of these models,
Chun-Chun Zhu, Jing Chen, Wen-Di Guo, Yu-Xiao Liu   +3 more
doaj   +1 more source

Cosmic strings in extra dimensions [PDF]

Physical Review D, 1988
The Einstein equations coupled with a cloud of geometric strings for a five-dimensional Bianchi type-I cosmological model are studied. The cosmological consequences of having strings along the fifth dimension are examined. Particular solutions with dynamical compactifications of the extra dimensions and compatibility with expanding three-dimensional ...
Letelier, Patricio S., Verdaguer Oms, Enric, 1950-   +1 more
openaire   +3 more sources

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Searching for a dark dimension right-handed neutrino in KATRIN

Journal of High Energy Physics
We study the possibility that the Right-handed neutrino is a five-dimensional state propagating along a micron size extra dimension, as required in the dark dimension proposal.
Ignatios Antoniadis, Auttakit Chatrabhuti, Hiroshi Isono   +2 more
doaj   +1 more source

Inflation from extra dimensions [PDF]

Physics Letters B, 1995
15 pages, LaTeX file, 4 ...
openaire   +2 more sources