Results 121 to 130 of about 7,461,069 (375)

On the Galactic chemical evolution of sulfur [PDF]

Astronomy & Astrophysics, 2004
Accepted by A&A, 12 pages.
David L. Lambert, Nils Ryde
openaire   +4 more sources

Decoding the dual role of autophagy in cancer through transcriptional and epigenetic regulation

FEBS Letters, EarlyView.
Transcriptional and epigenetic regulation controls autophagy, which exerts context‐dependent effects on cancer: Autophagy suppresses tumorigenesis by maintaining cellular homeostasis or promotes tumor progression by supporting survival under stress. In this “In a Nutshell” article, we explore the intricate mechanisms of the dual function of autophagy ...
Young Suk Yu, Ik Soo Kim, Sung Hee Baek
wiley   +1 more source

Autophagy in cancer and protein conformational disorders

FEBS Letters, EarlyView.
Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley   +1 more source

Dynamical and chemical evolution of NGC1569

, 2005
Blue Compact Dwarf and Dwarf Irregular galaxies are generally believed to be unevolved objects, due to their blue colors, compact appearance and large gas fractions.
Aguirre, Aloisi, Aloisi, Alvensleben, Anders, Angeretti, Aparicio, Arnone, Arp, Babul, Blitz, Bradamante, Böhringer, Centurión, Chiappini, Chiappini, Chiappini, Ciotti, D'Ercole, de Heij, de Marchi, Dyson, Ellis, F. Matteucci, Fagotto, Finoguenov, G. Hensler, Gallagher, Gastaldello, Gibson, Greggio, Heckman, Henry, Herwig, Israel, Izotov, Izotov, Izotov, Kennicutt, Kobulnicky, Kobulnicky, Kunth, Köppen, L. Angeretti, Lilly, Loewenstein, Marcolini, Marconi, Marconi, Martin, Martin, Masegosa, Matsushita, Matteucci, Matteucci, Meynet, Momany, Mori, Mori, Mühle, Mühle, Olofsson, Origlia, Ostriker, Ott, Pagel, Pilyugin, Pipino, Pipino, Reakes, Recchi, Recchi, Recchi, Renzini, Renzini, Roediger, Romano, Ruiz-Lapuente, S. Recchi, Searle, Skillman, Spite, Sternberg, Stil, Stil, Tinsley, Tosi, Tozzi, Vallenari, van den Hoek, van Zee, Vílchez, Weidner, Woosley, Östlin   +94 more
core   +1 more source

Chemical evolution in the early phases of massive star formation - II. Deuteration [PDF]

, 2015
The chemical evolution in high-mass star-forming regions is still poorly constrained. Studying the evolution of deuterated molecules allows to differentiate between subsequent stages of high-mass star formation regions due to the strong temperature ...
T. Gerner, Y. Shirley, H. Beuther, D. Semenov, H. Linz, T. Albertsson, T. Henning   +6 more
semanticscholar   +1 more source

Chemical evolution and life [PDF]

BIO Web of Conferences, 2015
In research on the origins of life, the concept of “chemical evolution” aims at explaining the transition from non-living matter to living matter. There is however strong disagreement when it comes to defining this concept more precisely, and in particular with reference to a chemical form of Darwinian evolution: for some, chemical evolution is nothing
openaire   +3 more sources

Coupling Chemical Evolution with SPH [PDF]

Symposium - International Astronomical Union, 2003
We present a new statistical algorithm of Chemical Evolution implemented into the Tree-SPH code developed by Lia & Carraro (2000).
CARRARO, GIOVANNI, Portinari,L, Lia,C
openaire   +3 more sources

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

FEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang, Frans Bianchi, Geert van den Bogaart   +2 more
wiley   +1 more source

`Pure' Supernovae and Accelerated Expansion of the Universe

, 2011
A special class of type Ia supernovae that is not subject to ordinary and additional intragalactic gray absorption and chemical evolution has been identified.
A. Aguirre, A. Aguirre, A. G. Riess, A. G. Riess, B. Bassett, B. W. Holwerda, D. Yu. Tsvetkov, D. Yu. Tsvetkov, E. Mortsell, E. S. Gorbovskoy, G. Paturel, H. Lampeitl, I. Iben Jr., J. Guy, J. Whelan, M. Hicken, M. Kowalski, M. Sullivan, M. Sullivan, M. V. Pruzhinskaya, R. Barbon, R. Webbink, S. Perlmutter, V. M. Lipunov, V. M. Lipunov, Yu. P. Pskovskii, Yu. P. Pskovskii   +26 more
core   +1 more source

Molecular corridors and parameterizations of volatility in the chemical evolution of organic aerosols

, 2016
. The formation and aging of organic aerosols (OA) proceed through multiple steps of chemical reaction and mass transport in the gas and particle phases, which is challenging for the interpretation of field measurements and laboratory experiments as well
Ying Li, U. Pöschl, M. Shiraiwa
semanticscholar   +1 more source