Results 111 to 120 of about 205,088 (284)

THE COOL GIANT STARS AND CHEMICAL EVOLUTION OF GALAXY

Odessa Astronomical Publications, 2017
The fundamental characteristics and abundances of cool giant stars is discussed. The possible evolution of nuclides in process evolution of Galaxy was very shortly described.
N. S. Komarov, T. V. Shevchuk
doaj   +1 more source

Resolved SPLASH Chemodynamics in Andromeda’s PHAT Stellar Halo and Disk: On the Nature of the Inner Halo along the Major Axis

The Astronomical Journal, 2023
Stellar kinematics and metallicity are key to exploring formation scenarios for galactic disks and halos. In this work, we characterized the relationship between kinematics and photometric metallicity along the line of sight to M31's disk.
Ivanna Escala, Amanda C. N. Quirk, Puragra Guhathakurta, Karoline M. Gilbert, J. Leigh Wojno, Lara Cullinane, Benjamin F. Williams, Julianne Dalcanton   +7 more
doaj   +1 more source

Antibiotic‐induced decrease of bacterial load in guinea pig intestine reduces α2‐adrenoceptor expression and activity in peristaltic motor inhibition

British Journal of Pharmacology, EarlyView.
Background and Purpose The use of analgosedatives in critically ill patients carries the risk of impairing gastrointestinal (GI) propulsion and could thereby lead to sepsis. The gut microbiota can influence GI motility, but whether GI microbial dysbiosis modifies GI peristalsis impairment by analgosedative drugs has not yet been analysed. This question
Aitak Farzi, Eva Tatzl, Karl Kashofer, Slave Trajanoski, Michael K. Herbert, Peter Holzer   +5 more
wiley   +1 more source

Biopiracy and beauty brands? patent trends of cosmetics and skin care companies

The Journal of World Intellectual Property, EarlyView.
Abstract Concerns about the fairness and equity of ‘biodiscovery’ research endure despite the creation of legal frameworks designed to regulate access and benefit sharing involving genetic resources and associated traditional knowledge. While some industries that engage in biodiscovery have been the subject of sustained scrutiny, others have received ...
David J. Jefferson, Daniel F. Robinson
wiley   +1 more source

Multi‐isotope (N, O, Ti, and Cr) study of C1 and CM‐like clasts—Probing unsampled C1 material

Meteoritics &Planetary Science, EarlyView.
Abstract A multi‐element isotope (N, O, Ti, and Cr) study was conducted on C1 and CM‐like clasts hosted in achondrites and chondrite breccias to understand the genesis of these chondritic clasts. The mineralogy, O, and N isotopes confirm that CM‐like clasts in howardites and polymict eucrites closely resemble CM chondrite‐like material.
Markus Patzek, Yogita Kadlag, Miriam Rüfenacht, Evelyn Füri, Andreas Pack, Addi Bischoff, Harry Becker, Robbin Visser, Timm John, Maria Schönbächler   +9 more
wiley   +1 more source

On the central abundances of Active Galactic Nuclei and Star-forming Galaxies [PDF]

, 2015
We examine the relation between oxygen abundances in the narrow-line regions (NLRs) of active galactic nuclei (AGNs) estimated from the optical emission lines through the strong-line method (the theoretical calibration of Storchi-Bergmann et al.(1998)), via the direct Te-method, and the central intersect abundances in the host galaxies determined from ...
arxiv   +1 more source

The radial metallicity gradient and the history of elemental enrichment in M81 through emission-line probes

, 2014
We present a new set of weak-line abundances of HII regions in M81, based on Gemini Multi-Object Spectrograph (GMOS) observations. The aim is to derive plasma and abundance analysis for a sizable set of emission-line targets to study the galactic ...
Casasola, Viviana, Magrini, Laura, Stanghellini, Letizia, Villaver, Eva   +3 more
core   +1 more source

Functional and Pangenomic Exploration of Roc Two‐Component Regulatory Systems Identifies Novel Players Across Pseudomonas Species

Molecular Microbiology, EarlyView.
The Roc system represents a highly interconnected but incomplete network of two‐component regulatory systems involved in the virulence of Pseudomonas aeruginosa. Our work has enabled us to identify the missing RocA3 regulator, to propose new players in the system and to delineate their conservation between clades of the species.
Victor Simon, Julian Trouillon, Ina Attrée, Sylvie Elsen   +3 more
wiley   +1 more source

Chemical Abundances of Seven Irregular and Three Tidal Dwarf Galaxies in the M81 Group

, 2009
We have derived nebular abundances for 10 dwarf galaxies belonging to the M81 Group, including several galaxies which do not have abundances previously reported in the literature.
Allen, Alloin, Brinks, Bryan W. Miller, Bullock, Chynoweth, Dalcanton, De Robertis, Dinerstein, Duc, Duc, Edmunds, Evan D. Skillman, Gibson, Henry Lee, Howarth, Hummer, Hunter, Izotov, Janice C. Lee, Johnson, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Kennicutt, Kevin V. Croxall, Kobulnicky, Kobulnicky, Lee, Lee, Lee, Lee, Lee, Lee, Lequeux, Liese van Zee, Masegosa, Matteucci, Olofsson, Osterbrock, Pagel, Peimbert, Robert C. Kennicutt, Sabbi, Salzer, Seaton, Sharina, Stasińska, Stéphanie Côté, Taylor, Tremonti, van der Hulst, van Zee, van Zee, van Zee, van Zee, Vila-Costas, Weisz, Yun   +60 more
core   +1 more source

Abundance Distributions in Barred Galaxies [PDF]

International Astronomical Union Colloquium, 1996
AbstractI review the evidence for global abundance gradients in barred galaxies to be flatter when compared with those of normal galaxies. The finding that the abundance gradient becomes flatter as the strength of the bar increases, illustrates the effectiveness of radial flows induced by bars at transporting large amount of gas across galaxy disks.
openaire   +2 more sources