Results 111 to 120 of about 13,047,142 (383)

Probing boson stars with extreme mass ratio inspirals [PDF]

Journal of Cosmology and Astroparticle Physics, 2019
We propose to use gravitational waves from extreme mass ratio inspirals (EMRI), composed of a boson star and a supermassive black hole in the center of galaxies, as a new method to search for boson stars.
Huai-Ke Guo, K. Sinha, Chenren Sun
semanticscholar   +1 more source

Mass, Capacitary Functions, and the Mass-to-Capacity Ratio

Peking Mathematical Journal, 2023
We study connections among the ADM mass, positive harmonic functions tending to zero at infinity, and the capacity of the boundary of asymptotically flat $3$-manifolds with nonnegative scalar curvature. First we give new formulae that detect the ADM mass via harmonic functions.
openaire   +3 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Science with the space-based interferometer LISA. V: Extreme mass-ratio inspirals [PDF]

, 2017
The space-based Laser Interferometer Space Antenna (LISA) will be able to observe the gravitational-wave signals from systems comprised of a massive black hole and a stellar-mass compact object.
S. Babak, J. Gair, A. Sesana, E. Barausse, C. Sopuerta, C. Berry, E. Berti, P. Amaro-Seoane, A. Petiteau, A. Klein   +9 more
semanticscholar   +1 more source

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, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

A Study on the Two-Dimensional Numerical Simulation of Wing Flutter in a Heavy Gas

Aerospace
Using heavy gases in wind tunnel tests can reduce model weight issues, which have intensified with advancements in high-performance aircraft technology. This study employs time-domain analysis to examine the flutter characteristics and correction methods
Zhe Hu, Shun He, Bo Lu, Jun Zha
doaj   +1 more source

Ratio of Nucleon Mass and Electron Mass [PDF]

Nature, 1959
IN classical physics, the value of the fine structure constant ɛ2/ħc is 1/137. The value of the pion-nucleon interaction constant g 2/ħc is about 14.
openaire   +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, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

ACTIVEC, N MASS-RATIO

Journal of the Japanese Society for Horticultural Science, 1935
There are various opinions, theories or hypotheses on the relations between carbohydrates and nitrogen contained in plant to its behaviours. In order to know whether there is any more general and adequate fact or not we postulated“Active C, N”designated as“C, N”meaning the carbohydrate and the nitrogen, without any faults, which are necessary and ...
openaire   +2 more sources