Results 111 to 120 of about 271,788 (231)

The Heavy Metal Survey: The Evolution of Stellar Metallicities, Abundance Ratios, and Ages of Massive Quiescent Galaxies since z ∼ 2

The Astrophysical Journal
We present the elemental abundances and ages of 19 massive quiescent galaxies at z ∼ 1.4 and z ∼ 2.1 from the Keck Heavy Metal Survey. The ultradeep LRIS and MOSFIRE spectra were modeled using a full-spectrum stellar population fitting code with variable
Aliza G. Beverage, Mariska Kriek, Katherine A. Suess, Charlie Conroy, Sedona H. Price, Guillermo Barro, Rachel Bezanson, Marijn Franx, Brian Lorenz, Yilun Ma, Lamiya A. Mowla, Imad Pasha, Pieter van Dokkum, Daniel R. Weisz   +13 more
doaj   +1 more source

An Integrated Transient Expression and UPLC‐PDA Approach for Functional Genomics and Metabolic Analysis of Cannabis sativa

Biotechnology Journal, Volume 21, Issue 10, October 2026.
Graphical Abstract and Lay Summary Cannabis research is limited by a lack of efficient tools for studying gene function and metabolism. We developed two rapid, high‐efficiency methods for transient gene expression in high‐THC Cannabis and a simple, cost‐effective method to measure cannabinoids and cannflavins.
Sarah Pullano, Aida Shahabi, Parmis Shariat Torbaghani, Ivan Monsalvo, Madison Sandler, Adam Sumner, Alex Harris, David Haak, Bastiaan Bargmann, Nik Kovinich   +9 more
wiley   +1 more source

Pristine Inner Galaxy Survey. X.

VizieR online Data Catalogue associated with article published in journal Astronomy and Astrophysics with title ' The Pristine Inner Galaxy Survey (PIGS). X.
Starkenburg, Else, Schmidt Montelius, Martin, University of Strasbourg, University of Hertfordshire, Venn, Kim A., University of Victoria, Ardern-Arentsen, Anke, Vitali, Sara, Navarro, Julio F., Martin, Nicolas F., Millennium Nucleus ERIS, Lucchesi, Romain, University of Florence, Diego Portales University, Sestito, Federico, Max Planck Institut für Astronomie, Astronomy, Institute of Astronomy   +17 more
core   +1 more source

Abundance gradients and galaxy formation

The Astrophysical Journal, 1991
A three-dimensional collisionless code is used to simulate the formation of elliptical galaxies with a time scale for star formation comparable to the collapse time. A one-zone chemical evolution scheme is used to compute the evolution of the abundances of several chemical elements.
M. Stiavelli, F. Matteucci
openaire   +1 more source

Analysis of the Internal Radial Gradient of Chemical Abundances in Spiral Galaxies from CALIFA

The Astrophysical Journal
The study of chemical evolution is of paramount importance for understanding the evolution of galaxies. Models and observations propose an inside-out mechanism in the formation of spiral galaxy disks, implying a negative radial gradient of elemental ...
A. F. S. Cardoso, O. Cavichia, M. Mollá, L. Sánchez-Menguiano   +3 more
doaj   +1 more source

Colorectal Cancer: Epidemiology, Risk Factors, Signaling Pathways, Clinical Features, Screening, Diagnosis, and Management

MedComm, Volume 7, Issue 10, October 2026.
Colorectal cancer is a heterogeneous, adaptive disease shaped by population‐level risk, genomic and epigenetic alterations, tumor ecosystem evolution, and treatment pressure. This review integrates epidemiology, risk factors, signaling networks, clinical presentation, screening, molecular diagnosis, and stage‐ and biomarker‐guided management while ...
Kairui Wan, Ke Tang, Linglong Wang, Qin Tian, Mingwei Zheng, Cheng Qian, Limei Liu   +6 more
wiley   +1 more source

Abundances and gradients in nearby galaxies [PDF]

Proceedings of the International Astronomical Union, 2016
AbstractThe study of chemical abundance gradients can provide essential information on the evolution of disk galaxies. Here I briefly review our current observational knowledge concerning the abundances of the ionized gas (H ii regions and planetary nebulae) in nearby galaxies, and how they inform us about the time evolution of metallicity gradients.
openaire   +1 more source

Patterns of wild meat and other protein consumption in the periphery of Salonga National Park, Democratic Republic of the Congo

People and Nature, Volume 8, Issue 10, Page 3430-3445, October 2026.
Abstract In Central Africa, human activities are severely impacting terrestrial and aquatic wildlife, threatening the food security of millions of people. Accordingly, sustainable use of wildlife is crucial for the nutrition and livelihoods of many rural communities in the region.
Zolo Admettons, Mattia Bessone, Josué Ausse Baraka, Josué Engombe Botomia, Espérance Miezi, Bénédicte Nsilu, Jonathan Nkamisha Mukole, Michel Opelele Omeno, Jean Semeki Ngabinzeke, Barbara Fruth   +9 more
wiley   +1 more source

Evidence of Gaia Enceladus Experiencing at Least Two Passages around the Milky Way

The Astrophysical Journal Letters
One of the major recent breakthroughs has been the discovery of the last major merger to happen in the history of the Milky Way. Around 10 Gyr ago, the galaxy Gaia Enceladus with an estimated ∼10% of the Milky Way mass, fell into the potential of our ...
Ása Skúladóttir, Heitor Ernandes, Diane K. Feuillet, Alice Mori, Sofia Feltzing, Romain E. R. Lucchesi, Paola Di Matteo   +6 more
doaj   +1 more source

Metagenomic Characterisation of Antibiotic Resistance in Anaerobic Digesters and Their Implications for Environmental Health

Environmental Microbiology Reports, Volume 18, Issue 5, October 2026.
Anaerobic digester metagenomes revealed diverse resistance‐associated annotations and antibiotic target loci, highlighting their potential role in environmental AMR surveillance. The findings emphasise the need for cautious interpretation of resistome profiles and further host‐resolved analyses to determine the mobility and clinical relevance of ...
Olasunbo Aina Olasupo, Oluwaseyi Paul Olaniyan, Sunday Babatunde Akinde, Ademola Ayodele Adesoye, Fatimah Adenike Ajadi, Omokaro Obire, Elijah Kolawole Oladipo, Waidi Folorunso Sule, Olamilekan Emmanuel Oyinloye, Adedolapo Aishat Salami, Emmanuel Sunday Fajoyegbe, Adejoke Janet Ajani, Olabisi Ojo   +12 more
wiley   +1 more source