Results 61 to 70 of about 225,989 (345)

A simple model for molecular hydrogen chemistry coupled to radiation hydrodynamics [PDF]

, 2018
We introduce non-equilibrium molecular hydrogen chemistry into the radiation hydrodynamics code Ramses-RT. This is an adaptive mesh refinement grid code with radiation hydrodynamics that couples the thermal chemistry of hydrogen and helium to moment ...
Nickerson, Sarah, Rosdahl, Joakim, Teyssier, Romain   +2 more
core   +3 more sources

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

An Experimental Investigation of the use of Q-Factor to Determine the Shielding Effectiveness of Electrically Large Equipment Enclosures with Apertures [PDF]

, 2011
The current method of obtaining a Shielding Effectiveness (SE) measurement involves field measurements both inside and outside the enclosure to be tested. In this paper, a relationship between the Shielding Effectiveness and the Q-factor of the enclosure
Armstrong, Robert, Dawson, John Frederick, Marvin, Andy   +2 more
core  

Measurements of electrical resistances and investigations of factors affecting corrosion and breakages of shielding layers in extruded three‐layer 6.6 kV XLPE cables [PDF]

, 2023
Takashi Kurihara, Ken‐ichi Kimura, Takuya Watanabe, Tomoyuki Sato   +3 more
openalex   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Deuterium tritium fusion experiment device radiation shielding analysis and optimization

Frontiers in Energy Research
As deuterium-tritium (D-T) fusion experiments progress, radiation shielding is a fundamental requirement for ensuring personnel safety of fusion devices.
Zhao Shengqiang, Wu Xinghua, Cao Qixiang, Qu Shen, Zhang Long, Zhao Fengchao, Yin Miao   +6 more
doaj   +1 more source

Neutron Shielding Optimization Studies [PDF]

, 2015
The IsoDAR sterile-neutrino search calls for a high neutron flux from a 60 MeV proton beam striking a beryllium target, that flood a sleeve of highly-enriched 7Li, the beta-decay of the resulting 8Li giving the desired neutrinos for the veryshort ...
Alonso, Jose, Barlow, Roger, Bartoszek, Larry, Bungau, Adriana, Conrad, Janet, Shaevitz, M.H.   +5 more
core  

Star Formation in the First Galaxies I: Collapse Delayed by Lyman-Werner Radiation [PDF]

, 2012
We investigate the process of metal-free star formation in the first galaxies with a high-resolution cosmological simulation. We consider the cosmologically motivated scenario in which a strong molecule-destroying Lyman-Werner (LW) background inhibits ...
Abel, Abel, Ahn, Ahn, Anshu Dubey, Bader, Barkana, Bate, Bate, Beers, Begelman, Bergin, Bertschinger, Bonazzola, Bonnor, Bromm, Bromm, Bromm, Bromm, Bromm, Bromm, Cen, Chalence Safranek-Shrader, Chandrasekhar, Cho, Christoph Federrath, Ciardi, Ciardi, Clark, Clark, Colella, Collins, Couchman, Dijkstra, Draine, Dubey, Dubey, Dubey, Ebert, Eisenstein, Elmegreen, Evans, Federrath, Federrath, Federrath, Federrath, Federrath, Ferrara, Flower, Frebel, Frisch, Fryxell, Fumagalli, Furlanetto, Galli, Gammie, Gardner, Girichidis, Glover, Glover, Glover, Glover, Goldreich, Greif, Greif, Greif, Greif, Greif, Greif, Haiman, Haiman, Haiman, Heger, Hennebelle, Hennebelle, Holzbauer, Hosokawa, Hummel, Inoue, Johnson, Johnson, Kainulainen, Klessen, Kolmogorov, Komatsu, Kratter, Kritsuk, Kritsuk, Kritsuk, Krumholz, Krumholz, Krumholz, Krumholz, Latif, Latif, Mac Low, Machacek, Maio, McGreer, McKee, McKee, Meghann Agarwal, Mesinger, Miloš Milosavljević, Molina, Nelson, O'Shea, O'Shea, O'Shea, Oh, Oh, Omukai, Omukai, Omukai, Osterbrock, Ostriker, Padoan, Padoan, Padoan, Padoan, Palla, Pan, Passot, Press, Price, Price, Prieto, Prieto, Prunet, Regan, Ricker, Ricotti, Rydberg, Safranek-Shrader, Scalo, Scannapieco, Schaerer, Schneider, Shang, Shapiro, Sheth, Solomon, Stacy, Stacy, Stahler, Stecher, Stiavelli, Tanaka, Tegmark, Toomre, Tornatore, Trenti, Trenti, Truelove, Turk, Vazquez-Semadeni, Volker Bromm, Wang, Wise, Wise, Wise, Wise, Wolcott-Green, Wolcott-Green, Yoshida, Yoshida, Zackrisson, Zuckerman   +167 more
core   +2 more sources

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

How an improved implementation of H2 self-shielding influences the formation of massive stars and black holes

, 2015
High redshift quasars at z>6 have masses up to ~$10^9$ M$_\odot$. One of the pathways to their formation includes direct collapse of gas, forming a supermassive star, precursor of the black hole seed.
Glover, Simon C. O., Hartwig, Tilman, Klessen, Ralf S., Latif, Muhammad A., Volonteri, Marta   +4 more
core   +2 more sources