Results 81 to 90 of about 5,445,983 (296)

Screening Earth Analog Exoplanets on the Basis of a Predicted Nitrogen over Phosphorus Ratio

The Astrophysical Journal, 2023
Since the first discovery in 1995, data for over 5300 exoplanets have been documented in the NASA archive, revealing a vast diversity. Identifying life-enabling analogs of the Earth among this rapidly expanding catalog is of major interest. The stability
Hervé Toulhoat
doaj   +1 more source

Chemical ozone loss in the Arctic winter 1991–1992 [PDF]

, 2007
Chemical ozone loss in winter 1991–1992 is recalculated based on observations of the HALOE satellite instrument, Version 19, ER-2 aircraft measurements and balloon data.
Tilmes, S., Müller, Rolf, C. R. Webster, Müller, R., R. J. Salawitch, Schmidt, Ulrich (Prof. Dr.), Oelhaf, Hermann, Schmidt, U., Camy-Peyret, Claude C., Webster, C. R., Oelhaf, H., H. Oelhaf, Russell III, J. M., Schmidt, Ulrich, R. Müller, Tilmes, Simone, Salawitch, Ross J., J. M. Russell III, C. C. Camy-Peyret, U. Schmidt, Salawitch, R. J., Webster, Christopher R., Salawitch, R.J., S. Tilmes, Camy-Peyret, C.C., Russell III., James M.   +25 more
core   +2 more sources

Autophagy and mitophagy in pancreatic β‐cell homeostasis and their involvement in diabetes pathophysiology

FEBS Letters, EarlyView.
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee, Mingming Tong, Anna L. Gloyn   +2 more
wiley   +1 more source

Nucleosynthesis of Cobalt and Copper

Galaxies
Chemical abundances of cobalt (Co; Z = 27) and copper (Cu; Z = 29) in bulge and halo stars are presented and compared with chemical evolution models.
Beatriz Barbuy, Amâncio C. S. Friaça, Heitor Ernandes   +2 more
doaj   +1 more source

Chemical Abundances of Local Group Globular Clusters [PDF]

, 2014
Detailed chemical abundances of globular clusters in the Milky Way and M31 (the Andromeda Galaxy) are presented based on analyses of high resolution spectra.
Sakari, Charli
core  

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

FEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

Molybdenum Abundances in MINCE Stars

Galaxies
Molybdenum (Mo, Z = 42) is a neutron-capture element with seven stable isotopes that can be produced by different processes. Previous studies have shown a large scatter in molybdenum abundances for metal-poor ([Fe/H] < −1) stars, indicating that multiple
Linda Lombardo, Francesca Lucertini
doaj   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

FEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante, Robert Sharp, Pradip K. Saha, Elizabeth S. Anaya, Elizabeth L. Lieu, Evelyn L. de Groot, Pooja Patel, Mi Jeong Heo, Aaron R. Cox, Kang Ho Kim, Sean M. Hartig   +10 more
wiley   +1 more source

Recent Advances in Understanding R-Process Nucleosynthesis in Metal-Poor Stars and Stellar Systems

Universe
The rapid neutron-capture process (r-process) is responsible for the creation of roughly half of the elements heavier than iron, including precious metals like silver, gold, and platinum, as well as radioactive elements such as thorium and uranium ...
Avrajit Bandyopadhyay, Timothy C. Beers
doaj   +1 more source

Chemical Abundances and the Hierarchical Clustering

, 2003
to appear in Recycling intergalactic and intersetellar matter, IAUSS Vol 217 ...
Tissera, Patricia B., Lambas, Diego G.
openaire   +2 more sources