Results 51 to 60 of about 366,974 (258)

The redshift and X-ray photon index evolutionary LX-LUV relations of quasars

Astronomy & Astrophysics
The LX-LUV relation serves as a cornerstone for extending the Hubble diagram to higher redshift by utilizing quasars as standard candles. However, the constancy of the LX-LUV relation has been embroiled in controversy recently.
Li Ge-Xing, Li Zhi-Hong, Song Na, Chen Chen, Dong Chao, Tian Jun-Wen, Zhang Zhi-Cheng, Li Jia-Ying-Hao, Tian Hui-Ling, Ma Mei-Yue-Nan   +9 more
doaj   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Stress, strain, neutron transport and radiation effects in a full fusion tokamak device: A virtual MAST-U study [PDF]

EPJ Web of Conferences
A finite-element method (FEM) model for the Mega-Ampere Spherical Tokamak - Upgrade (MAST-U) fusion tokamak has been developed to evaluate stress and deformations in the full device structure and to assess the stability of the whole tokamak with respect ...
Reali Luca, Ellis William M.E., Gray Ander, Boleininger Max, Davis Andrew, Brooks Helen M., Katramados Ioannis, Thornton Andrew J., Buchanan James, Dudarev Sergei L.   +9 more
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

High-temperature oxidation of sheath materials using mineral-insulated cables for a simulated severe accident

Mechanical Engineering Journal, 2018
In-pile instrumentation systems in present-day light water reactors (LWR) are indispensable to monitor all situations during reactor operation and reactor shut down.
Hiroko NAKANO, Noriaki HIROTA, Hiroshi SHIBATA, Tomoaki TAKEUCHI, Kunihiko TSUCHIYA   +4 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Occupational radiation exposure analysis in industrial radiography in Bangladesh

Radiation Medicine and Protection
Objective: To evaluate the workload management and guarantee the technical concerns for an appropriate radiation protection method in non-destructive testing (NDT) industries in Bangladesh. Methods: The radiation exposure for 721 workers was investigated
Mehedi Hassan, Shahadat Hossain, M.M. Mahfuz Siraz, Shikha Pervin, Nazneen Sultana, Md Zakir Hossain, Selina Yeasmin   +6 more
doaj   +1 more source

Analytical study of perforation damage in reinforced concrete slabs subjected to oblique impact by projectiles with different nose shapes

Mechanical Engineering Journal, 2020
Considerable research has been carried out to establish a rational assessment method for nuclear power plants against external projectile impact. Most of the empirical formulas have been proposed to quantitatively investigate local damage to reinforced ...
Zuoyi KANG, Yukihiko OKUDA, Akemi NISHIDA, Haruji TSUBOTA, Yinsheng LI   +4 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source