Results 131 to 140 of about 21,308,721 (308)

Aspects of M theory and phenomenology

open access: yes, 1999
A brief review is presented of selected topics, including a world- sheet formulation of M theory, couplings and scales in M phenomenology, the perils of baryon decay and the possible elevation of free-fermion models to true M- or F-theory ...
Ellis, John R.
core  

Global Tensor-Matter Transitions in F-Theory [PDF]

open access: yes, 2018
We use F‐theory to study gauge algebra preserving transitions of 6d supergravity theories that are connected by superconformal points. While the vector multiplets remain unchanged, the hyper‐ and tensor multiplet sectors are modified.
Sub String Theory Cosmology and ElemPart   +7 more
core   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Search for the M-theory Lagrangian [PDF]

open access: yesPhysics Letters B, 1997
We present a starting point for the search for a Lagrangian density for M-Theory using characteristic classes for flat foliations of bundles.
openaire   +2 more sources

Entropy and thermodynamic limits in M-theory

open access: yes, 2004
The matching of the BPS part of the (super) membrane's spectrum enables one to obtain membrane's results via string calculations. We compute the thermodynamic behavior at large coupling constant by considering M-theory on a manifold with topology T-2 X R-
Abdalla, MCB   +2 more
core   +2 more sources

From matrix model to string theory and M-theory

open access: yes, 2023
Recent development of quantum technologies suggest an exciting new direction of the study of quantum gravity: We might be able to create black holes!
Hanada, Masanori
core  

Ubiquitination of secretory granules promotes their crinophagic degradation in Drosophila

open access: yesFEBS Letters, EarlyView.
Ubiquitination of secretory granules in Drosophila larval salivary glands is a critical molecular trigger for crinophagy, the lysosomal degradation of unreleased, or low‐quality granules. The E3 ubiquitin ligase Cnot4 is recruited to the surface of secretory granules to induce crinophagy.
Tamás Csizmadia   +6 more
wiley   +1 more source

Higher Structures in M-Theory

open access: yes, 2018
The key open problem of string theory remains its non-perturbative completion to M-theory. A decisive hint to its inner workings comes from numerous appearances of higher structures in the limits of M-theory that are already understood, such as higher ...
Saemann, Christian; id_orcid   +9 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Quintessence from M-theory [PDF]

open access: yesJournal of High Energy Physics, 2001
The status of exponential scalar potentials in supergravity is reviewed, and updated. One version of N=8 D=4 supergravity with a positive exponential potential, obtainable from a `non-compactification' of M-theory, is shown to have an accelerating cosmological solution that realizes `eternal quintessence'.
openaire   +2 more sources

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