Results 111 to 120 of about 3,517,480 (298)

An Active-Sterile Neutrino Transformation Solution for r-Process Nucleosynthesis

, 1999
We discuss how matter-enhanced active-sterile neutrino transformation in both neutrino and antineutrino channels could enable the production of the rapid neutron capture (r-process) nuclei in neutrino-heated supernova ejecta.
Balantekin, A. B., Fetter, J. M., Fuller, G. M., McLaughlin, G. C.   +3 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

A holistic abundance analysis of r-rich stars

, 2010
The chemical abundances of metal-poor stars are an excellent test bed by which to set new constraints on models of neutron-capture processes at low metallicity.
Andrievsky, Aoki, Aoki, Arlandini, Arnould, Barklem, Bo Zhang, Burbidge, Busso, Christlieb, Cowan, Cowan, Cowan, Fields, Francois, Hayek, Hill, Honda, Honda, Honda, Ishimaru, Ivans, Izutani, Jiang Zhang, Johnson, Käppeler, Masseron, McWilliam, McWilliam, Miller, Montes, Plez, Qian, Qian, Roederer, Ryan, Sneden, Sneden, Sneden, Sneden, Sneden, Sneden, Spite, Travaglio, Travaglio, Truran, Wanajo, Wenyuan Cui, Westin, Woosley   +49 more
core   +1 more source

Location of the neutron drip line for Sn and its impact on r-process abundances

Physics Letters B
Nuclear physical inputs are critical for predicting the abundance of r-process elements. Extensive sensitivity studies have recently been performed to gauge the impact of the individual properties of nuclei on the r-process.
Melvin Storbacka, Chong Qi
doaj   +1 more source

The r-Process and Chronometers

, 2002
4 pages, 2 figures; In Proceedings of the 11th Workshop on Nuclear Astrophysics, eds. W. Hillebrandt and E.
Cowan, John J., Sneden, Christopher, Truran, James W.   +2 more
openaire   +2 more sources

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

Approaching r-process nuclei at N = 126

Journal of Physics: Conference Series, 2012
The production of heavy neutron-rich nuclei approaching the r-process waiting point at N≈126 has been investigated in fragmentation reactions of relativistic 238U and 208Pb projectiles. Using this technique we were able to identify 73 new heavy neutron-rich nuclei expanding considerably the north-west frontier of the chart of nuclide. Moreover, we were
Benlliure, J., Alvarez-Pol, H., Kurtukian Nieto, T., Morales, A.I., Audouin, L., Becker, F., Blank, Bertram, Borzov, I., Casarejos, E., Cortina-Gil, D., Fernandez, B., Giovinazzo, J., Henzlova, D., Jurado, B., Langanke, L., Martinez-Pinedo, G., Napolitani, P., Pereira, J., Rejmund, F., Schmidt, K.-H., Yordanov, O.   +20 more
openaire   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

The sensitivity of r-process nucleosynthesis to the properties of neutron-rich nuclei

, 2013
About half of the heavy elements in the Solar System were created by rapid neutron capture, or r-process, nucleosynthesis. In the r-process, heavy elements are built up via a sequence of neutron captures and beta decays in which an intense neutron flux ...
Aprahamian, A., Cass, J., Mumpower, M., Surman, R.   +3 more
core   +1 more source

Fetal Brain Tumor Harboring a Unique ROCK1::BRAF Fusion

Pediatric Blood &Cancer, EarlyView.
Marllon Cindra Sant'Ana, Mariana Maschietto, Daniela Paz Leal, Ricardo de Santos de Oliveira, Mayara Ferreira Euzébio, Antonio Carlos dos Santos, Luciano Neder, Carlos Alberto Scrideli, Elvis Terci Valera   +8 more
wiley   +1 more source