Results 61 to 70 of about 20,039 (169)

Can Slow Pulsars in Milky Way Globular Clusters Form via Partial Recycling?

The Astrophysical Journal Letters
Alongside the population of several hundred radio millisecond pulsars currently known in Milky Way globular clusters, a subset of six slowly spinning pulsars (spin periods 0.3–4 s) are also observed.
Kyle Kremer, Claire S. Ye, Craig O. Heinke, Anthony L. Piro, Scott M. Ransom, Frederic A. Rasio   +5 more
doaj   +1 more source

Higher order QCD results for the fermionic contributions of the Higgs-boson decay into two photons and the decoupling function for the MSbar renormalized fine-structure constant

, 2014
We compute the decoupling function of the MSbar renormalized fine-structure constant up to four-loop order in perturbative QCD. The results are used in order to determine the related top-quark contributions to the Higgs-boson decay into two photons in ...
Sturm, Christian
core   +1 more source

Deciphering the Interplay Between G‐Quadruplexes and Natural/Synthetic Polyamines

ChemBioChem, Volume 26, Issue 7, April 1, 2025.
The interplay between polyamines and G‐quadruplexes has been largely overlooked in the literature, even though PAs are ubiquitous metabolites in living cells and G4s are transient regulatory elements. Herein, we compile the investigations connecting G4s and biogenic polyamines or synthetic G4 ligands containing polyamines.
Ariadna Gil‐Martínez, Cristina Galiana‐Roselló, Andrea Lázaro‐Gómez, Laura Mulet‐Rivero, Jorge González‐García   +4 more
wiley   +1 more source

Enhanced Photoelectrochemical Water Splitting Using Bismuth/Bismuth Selenide Nanocomposites

Chemistry – An Asian Journal, Volume 20, Issue 6, March 17, 2025.
Bismuth/Bismuth Selenide (Bi/Bi₂Se₃) nanocomposites exhibit enhanced photoelectrochemical (PEC) water splitting performance due to optimized energy band alignment and efficient charge separation. The figure illustrates the impact of synthesis temperature on bandgap tuning, leading to improved photocatalytic activity and hydrogen evolution.
Sumayyah Khan, Manzar Sohail, Geoffrey Will, Anthony O' Mullane, Ahmed Abdala, Md A. Wahab   +5 more
wiley   +1 more source

The origin of variability of the intermediate-mass black-hole ULX system HLX-1 in ESO 243-49

, 2011
The ultra-luminous intermediate-mass black-hole system HLX-1 in the ESO 243-49 galaxy exhibits variability with a possible recurrence time of a few hundred days.
Alexander, Alexander, Bath, Baumgardt, Begelman, Chen, D. Barret, Davis, Dubus, Ebisuzaki, Figer, Frank, G. Dubus, Godet, Godet, Gürkan, Habing, Heggie, Hirose, Hirose, Ho, Hopman, Hopman, J.-P. Lasota, Kaaret, Keshet, King, Kong, Lajoie, Lasota, Lasota, Lin, Liu, N. A. Webb, N. Gehrels, O. Godet, Portegies Zwart, Preto, S. A. Farrell, Sepinsky, Smak, Spruit, Sternberg, Strohmayer, T. Alexander, Walton, Wiersema, Zheng   +47 more
core   +3 more sources

Altered O‐glycosylation of β1‐adrenergic receptor N‐terminal single‐nucleotide variants modulates receptor processing and functional activity

The FEBS Journal, Volume 292, Issue 5, Page 998-1018, March 2025.
The human β1‐adrenergic receptor (β1AR) carries common (S49G) and rare (R31Q, A29T) single‐nucleotide polymorphisms (SNPs) in its extracellular N‐terminal domain. These were found to alter receptor O‐glycosylation and/or proteolytic cleavage, resulting in SNP‐dependent differences in β1AR cell surface expression and function that also involved the ...
Hanna E. Tuhkanen, Ilona J. Haasiomäki, Jarkko J. Lackman, Christoffer K. Goth, S. Orvokki Mattila, Zilu Ye, Sergey Y. Vakhrushev, Johanna Magga, Risto Kerkelä, Henrik Clausen, Katrine T. Schjoldager, Ulla E. Petäjä‐Repo   +11 more
wiley   +1 more source

The five-dimensional Kepler Problem as an SU(2) Gauge System: Algebraic Constraint Quantization

, 1995
Starting from the structural similarity between the quantum theory of gauge systems and that of the Kepler problem, an SU(2) gauge description of the five-dimensional Kepler problem is given.
Trunk, Michael
core   +1 more source

MicroRNA gatekeepers: Orchestrating rhizospheric dynamics

Journal of Integrative Plant Biology, Volume 67, Issue 3, Page 845-876, March 2025.
MicroRNAs play a crucial role in plant communication within the rhizosphere, shaping growth, development, and resilience to biotic and abiotic stresses. ABSTRACT The rhizosphere plays a crucial role in plant growth and resilience to biotic and abiotic stresses, highlighting the complex communication between plants and their dynamic rhizosphere ...
Muhammad Fahad, Leeza Tariq, Wanchang Li, Liang Wu   +3 more
wiley   +1 more source

Out of the Darkness: High-resolution Detection of CO Absorption on the Nightside of WASP-33b

The Astrophysical Journal Letters
We observed the ultrahot Jupiter WASP-33b with the SpectroPolarimètre InfraRouge on the Canada–France–Hawaii Telescope. Previous observations of the dayside of WASP-33b show evidence of CO and Fe emission indicative of a thermal inversion.
Georgia Mraz, Antoine Darveau-Bernier, Anne Boucher, Nicolas B. Cowan, David Lafrenière, Charles Cadieux   +5 more
doaj   +1 more source

Dual effects of mefenamic acid on the IKs molecular complex

British Journal of Pharmacology, Volume 182, Issue 4, Page 1075-1089, February 2025.
Abstract Background and Purpose Mutations in both KCNQ1 and KCNE1, which together form the cardiac IKs current, are associated with inherited conditions such as long and short QT syndromes. Mefenamic acid, a non‐steroidal anti‐inflammatory drug, is an IKs potentiator and may be utilised as an archetype to design therapeutically useful IKs agonists ...
Magnus Chan, Marc Pourrier, Jodene Eldstrom, Harutyun Sahakyan, Vitya Vardanyan, David Fedida   +5 more
wiley   +1 more source