Results 91 to 100 of about 52,634 (236)

Spider Webs, Soil or Leaf Swabs to Detect Environmental DNA From Terrestrial Vertebrates: What Is the Best Substrate?

Molecular Ecology Resources, Volume 25, Issue 8, November 2025.
ABSTRACT As human activities drive biodiversity decline, effective biomonitoring is more crucial than ever to track species distribution changes and inform conservation and restoration actions. Environmental DNA (eDNA) metabarcoding has emerged as a promising tool for the simultaneous detection of multiple taxa. However, while substrates play a crucial
Aloïs Berard, Julien Pradel, Nathalie Charbonnel, Maxime Galan   +3 more
wiley   +1 more source

Chemical Abundance Gradients in Open Clusters from the Gaia/LAMOST Sample

The Astronomical Journal
Based on a large and homogeneous sample of 299 open clusters (OCs) from Gaia DR3 and large sky area multiobject fiber spectroscopic telescope DR11, we studied the abundance gradients of the α -elements Mg and Si, and the iron-peak elements Fe and Ni to ...
Guochao Yang, Jingkun Zhao, Yong Yang, Nian Liu, Yangping Luo, Gang Zhao   +5 more
doaj   +1 more source

The Chemical Abundances of the Halo Clusters of the Galaxy [PDF]

, 1978
R. Canterna, R. A. Schommer
openalex   +1 more source

Microbial and bryospheric photosynthesis of boreal peatlands have peatland‐type‐specific responses to long‐term drying

New Phytologist, Volume 248, Issue 3, Page 1336-1350, November 2025.
Summary The impacts of drying on bryospheric photosynthesis are poorly understood. Utilising a 20‐yr‐long experiment, we quantified the effects of long‐term water level drawdown (WLD) on links between bryospheric photosynthesis, microbial community composition, decomposition, and environmental variables.
Olivia Kuuri‐Riutta, Marie Le Geay, Vincent E. J. Jassey, Janna M. Barel, Anna M. Laine, Henni Ylänne, Eeva‐Stiina Tuittila   +6 more
wiley   +1 more source

Chemical Components in the Virgo Overdensity and Hercules–Aquila Cloud: Hints of More than One Merger Event in GSE-like Debris

The Astrophysical Journal
Using elemental abundances for 1.26 million K giants in the Large Sky Area Multi-Object Fiber Spectroscopic Telescope DR8 value-added catalog, we analyze the chemical abundances of the Virgo Overdensity and Hercules–Aquila Cloud.
Haoyang Liu, Cuihua Du, Thomas Donlon II, Mingji Deng   +3 more
doaj   +1 more source

The TET3/GATA6 Axis Drives Lipid Metabolism and Therapeutic Vulnerabilities in Pancreatic Ductal Adenocarcinoma

Advanced Science, Volume 12, Issue 37, October 6, 2025.
The DNA demethylase TET3 drives lipid metabolic reprogramming in pancreatic ductal adenocarcinoma via a non‐catalytic mechanism. TET3 recruits histone deacetylases to repress GATA6, sustaining lipogenic enzyme expression and ferroptosis resistance.
Shuai Liu, Shaobo Kang, Na Lin, Wenqi Zhang, Shiwen Wang, Yuqing Ren, Xiaofan Ding, Jianxiu Yu, Ruiyu Xie   +8 more
wiley   +1 more source

A Perspective on the Milky Way Bulge Bar as Seen from the Neutron-capture Elements Cerium and Neodymium with APOGEE

The Astrophysical Journal
This study probes the chemical abundances of the neutron-capture elements cerium and neodymium in the inner Milky Way from an analysis of a sample of ∼2000 stars in the Galactic bulge bar spatially contained within ∣ X _Gal ∣ < 5 kpc, ∣ Y _Gal ∣ < 3.5 ...
J. V. Sales-Silva, K. Cunha, V. V. Smith, S. Daflon, D. Souto, R. Guerço, A. Queiroz, C. Chiappini, C. R. Hayes, T. Masseron, Sten Hasselquist, D. Horta, N. Prantzos, M. Zoccali, C. Allende Prieto, B. Barbuy, R. Beaton, D. Bizyaev, J. G. Fernández-Trincado, P. M. Frinchaboy, J. A. Holtzman, J. A. Johnson, Henrik Jönsson, S. R. Majewski, D. Minniti, D. L. Nidever, R. P. Schiavon, M. Schultheis, J. Sobeck, G. S. Stringfellow, G. Zasowski   +30 more
doaj   +1 more source

AIEgen‐Based and Smartphone‐Assisted On‐Site Quantitation of Cystatin C for Monitoring of Chronic Kidney Disease

Aggregate, Volume 6, Issue 10, October 2025.
By employing new protein‐templated AIEgen Ir@BSA as the phosphorescence signal indicator and papain as the biomolecular recognition element, a straightforward protocol for Cys C quantitation has been developed. On‐site quantitation of Cys C in clinical serum samples has been successfully demonstrated using a smartphone‐based portable phosphorescence ...
Shuqi Xia, Xue Zhu, Shiqiong Niu, Wanqing Zhang, Jinyi Gong, Zhaofan Luo, Meijin Li, Changqing Yi   +7 more
wiley   +1 more source

Modeling the Ages and Chemical Abundances of Elliptical Galaxies

The Astrophysical Journal
Spectroscopic studies of elliptical galaxies show that their stellar population ages, mean metallicity, and α enhancement traced by [Mg/Fe] all increase with galaxy stellar mass or velocity dispersion.
Nicole Marcelina Gountanis, David H. Weinberg, Aliza G. Beverage, Nathan R. Sandford, Charlie Conroy, Mariska Kriek   +5 more
doaj   +1 more source

Roost Disturbance and Predation: Agama Lizard (Agama sp.) Preying on Slit‐Faced Bats (Nycteris sp.) in Zakouma National Park, Chad

Ecology and Evolution, Volume 15, Issue 10, October 2025.
We report the first documented case of an agama lizard (Agama sp.) preying on slit‐faced bats (Nycteris sp.). This rare observation occurred during the dry season in Zakouma National Park, Chad, and may have been triggered by the displacement of bats from their roost by olive baboons (Papio anubis).
Elsa M. S. Bussière, Cecilia Montauban, Cyril Pélissier, Cristian Pizzigalli   +3 more
wiley   +1 more source