Results 71 to 80 of about 84,685 (303)
Chemical Abundances in Planetary Nebulae [PDF]
Symposium - International Astronomical Union, 1978 PN can be divided into four types depending on their chemical composition. In order of decreasing heavy element abundances the types are: I) He and N rich, II) intermediate population, III) high velocity, and IV) halo population. The type II PN are overabundant in N and C relative to the Orion Nebula.
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Analysis of chemical abundances in planetary nebulae with [WC] central stars [PDF]
Astronomy & Astrophysics, 2013 Accepted for publication in A&A. 15 Tables and 18 Figures.
García Rojas, Jorge +5 more
openaire +3 more sources
Two-process Model and Residual Abundance Analysis of the Milky Way Massive Satellites
The Astrophysical JournalThe “two-process model” is a promising technique for interpreting stellar chemical abundance data from large-scale surveys (e.g., the Sloan Digital Sky Survey IV/V and the Galactic Archeology with HERMES survey), enabling more quantitative empirical ...
Sten Hasselquist +6 more
doaj +1 more source
Potential therapeutic targeting of BKCa channels in glioblastoma treatment
Molecular Oncology, Volume 20, Issue 6, Page 1398-1419, June 2026.This review summarizes current insights into the role of BKCa and mitoBKCa channels in glioblastoma biology, their potential classification as oncochannels, and the emerging pharmacological strategies targeting these channels, emphasizing the translational challenges in developing BKCa‐directed therapies for glioblastoma treatment.
Kamila Maliszewska‐Olejniczak +4 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesAs the field of exoplanetary astronomy has matured, demand has grown for precise stellar abundances to probe subtle correlations between stellar compositions and planetary demographics.
Emily K. Pass +9 more
doaj +1 more source
Molecular Oncology, Volume 20, Issue 6, Page 1626-1642, June 2026.Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon +13 more
wiley +1 more source
The Sunburst Arc with JWST. III. An Abundance of Direct Chemical Abundances
The Astrophysical JournalAbstract We measure the gas-phase abundances of the elements He, N, O, Ne, S, Ar, and Fe in an individual H ii region known to be leaking Lyman-continuum photons in the Sunburst Arc, a highly magnified galaxy at redshift z = 2.37. We detect the temperature-sensitive auroral lines [S ii] λλ4070, 4076, [O iii] λ4363, [S ...
Brian Welch +13 more
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The Open Cluster Chemical Abundances from Spanish Observatories survey (OCCASO)
, 2014 International audienceWe present the motivation, design and current status of the Open Cluster Chemical Abundances from Spanish Observatories survey (OCCASO).
Balaguer-Núñez, L., +12 more
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Systematic investigation of chemical abundances derived using IR spectra obtained with GIANO [PDF]
, 2019 Context. Detailed chemical abundances of Galactic stars are needed in order to improve our knowledge of the formation and evolution of our galaxy, the Milky Way. Aims.
Ludwig, H. G. +50 more
core +1 more source
Plecstatin inhibits hepatocellular carcinoma tumorigenesis and invasion through cytolinker plectin
Molecular Oncology, Volume 20, Issue 6, Page 1453-1472, June 2026.The ruthenium‐based metallodrug plecstatin exerts its anticancer effect in hepatocellular carcinoma (HCC) primarily through selective targeting of plectin. By disrupting plectin‐mediated cytoskeletal organization, plecstatin inhibits anchorage‐dependent growth, cell polarization, and tumor cell dissemination.
Zuzana Outla +10 more
wiley +1 more source