Results 61 to 70 of about 7,604,095 (315)

JINA-NuGrid Galactic Chemical Evolution Pipeline

, 2016
Galactic chemical evolution is a topic that involves nuclear physics, stellar evolution, galaxy evolution, observation, and cosmology. Continuous communication and feedback between these fields is a key component in improving our understanding of how ...
Côté, Benoit, Fryer, Chris L., Herwig, Falk, Jones, Samuel, O'Shea, Brian W., Pignatari, Marco, Ritter, Christian, Silvia, Devin   +7 more
core   +1 more source

EURAD State-of-the-Art Report: ACED assessment of the chemical evolution at the disposal cell scale—part I—processes at interfaces and evolution at disposal cell scale

Frontiers in Nuclear Engineering
Within the framework of the European Joint Programme on Radioactive Waste Management, the work package ACED–Assessment of chemical evolution of intermediate level (ILW) and high level (HLW) waste at disposal cell scale–used combined experimental and ...
Erika Neeft, Guido Deissmann, Diederik Jacques   +2 more
doaj   +1 more source

Prebiotic Chemistry: Geochemical Context and Reaction Screening

Life, 2013
The origin of life on Earth is widely believed to have required the reactions of organic compounds and their self- and/or environmental organization. What those compounds were remains open to debate, as do the environment in and process or processes by ...
Henderson James Cleaves
doaj   +1 more source

Oxidative Phosphorus Chemistry Perturbed by Minerals

Life, 2022
Life is a complex, open chemical system that must be supported with energy inputs. If one fathoms how simple early life must have been, the complexity of modern-day life is staggering by comparison. A minimally complex system that could plausibly provide
Arthur Omran, Josh Abbatiello, Tian Feng, Matthew A. Pasek   +3 more
doaj   +1 more source

Inflow, Outflow, Yields, and Stellar Population Mixing in Chemical Evolution Models [PDF]

, 2016
Chemical evolution models are powerful tools for interpreting stellar abundance surveys and understanding galaxy evolution. However, their predictions depend heavily on the treatment of inflow, outflow, star formation efficiency (SFE), the stellar ...
B. Andrews, D. Weinberg, R. Schönrich, Jennifer A. Johnson   +3 more
semanticscholar   +1 more source

The Evolution of 3He, 4He and D in the Galaxy [PDF]

, 2000
In this work we present the predictions of a modified version of the ``two-infall model'' (Chiappini et al. 1997) for the evolution of 3He, 4He and D in the solar vicinity, as well as their distributions along the Galactic disk.
Chiappini, Cristina, Matteucci, Francesca   +1 more
core   +2 more sources

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

FEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

EURAD State-of-the-Art Report: Assessment of the chemical evolution at the disposal cell scale – part II – gaining insights into the geochemical evolution

Frontiers in Nuclear Engineering
Long time frames are to be considered in the safety and performance assessment of deep geological disposal of intermediate and high level radioactive waste.
Guido Deissmann, Erika Neeft, Diederik Jacques   +2 more
doaj   +1 more source

GRBs as Cosmological Probes - Cosmic Chemical Evolution [PDF]

, 2006
Long-duration gamma-ray bursts (GRBs) are associated with the death of metal-poor massive stars. Even though they are highly transient events very hard to localize, they are so bright that they can be detected in the most difficult environments.
Berger E, Berger E, Cenko S B Berger E Djorgovski S G Mahabal A A Fox D B, Daigne F, Dessauges-Zavadsky M, Ellison S L, Foley R J Chen H-W Bloom J S Prochaska J X, Ghirlanda G, Guidorzi C, Klose S, Ledoux C, Maiorano E, Moustakas J, Nagao T, Pagel B E J, Peroux C, Petitjean P, Prochaska J X, Prochaska J X, Prochter G E, S Savaglio, Savaglio S, Savaglio S, Soderberg A M, Spergel D N, Spitzer L, Stanek K Z, Sullivan M, Totani T, Watson D   +29 more
core   +2 more sources

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

FEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source