Results 71 to 80 of about 119,582 (346)
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS 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
Universally finite gravitational and gauge theories
Nuclear Physics B, 2015 It is well known that standard gauge theories are renormalizable in D=4 while Einstein gravity is renormalizable in D=2. This is where the research in the field of two derivatives theories is currently standing.
Leonardo Modesto, Lesław Rachwał
doaj +1 more source
, 2015 If the past exists only in its retelling, I’ll tell you that I picture her with a Greek hook to her nose. She’s maybe a little astigmatic, fond of her library and matters of state. She’s more charming than most but no more murder-prone than her forbears or than having a brother-husband might make anyone.
openaire +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Gravitational Breaking of the Grand Unified Theory Group and the Grand Unified Theory–Planck Hierarchy [PDF]
Physical Review Letters, 1996 It is shown that nonrenormalizable gravitational interactions in the Higgs sector of supersymmetric grand unified theories (GUTs) can produce the breaking of the unifying gauge group {ital G} at the GUT scale {ital M}{sub GUT}{approximately}10{sup 16} GeV.
, Urano, , Ring, , Arnowitt
openaire +2 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Unitarity constraints on large multiplets of arbitrary gauge groups
Nuclear Physics BWe impose partial-wave unitarity on 2→2 tree-level scattering processes to derive constraints on the dimensions of large scalar and fermionic multiplets of arbitrary gauge groups.
André Milagre, Luís Lavoura
doaj +1 more source
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Flavon alignments from orbifolding: SU(5) × SU(3) model with 𝕋6 /∆(54)
Journal of High Energy Physics, 2019 We systematically develop the formalism necessary for ensuring that boundary conditions of flavon fields in extra dimensions are consistent with heterotic string theory.
Francisco J. de Anda +3 more
doaj +1 more source
The Partial Eclipse of Plotinus in the Middle Ages and his Recovery in the Renaissance
Patristica et Mediaevalia, 2019 This article studies the Plotinian presence in the Middle Ages and the Renaissance. First, it accounts for the indirect transmission of the Enneads throughout Medieval times and the editions that reappears in the Renaissance. In this regard, it discusses
Kevin Corrigan
doaj +1 more source