Results 31 to 40 of about 678 (152)

Observational Evidence of Dust Evolution in Supernova Remnants: Size Redistribution toward Larger Grains in the Early Sedov Phase

The Astrophysical Journal Letters
Recent observations have revealed that dust is widespread and abundant in galaxies up to z  ≃ 8, significantly influencing their appearance and spectral properties.
He Zhao, Bingqiu Chen, Jun Li
doaj   +1 more source

Narrative Matters: Cultural humility in mental healthcare

Child and Adolescent Mental Health, Volume 31, Issue 1, Page 77-79, February 2026.
Young people from ethnic minority backgrounds in the United Kingdom are less likely to seek psychological support than their white peers. When they do engage with services, a disproportionate number leave, often prematurely. Intercultural frameworks have been developed to help clinicians engage sensitively with diverse populations and improve outcomes.
Ade Kolade
wiley   +1 more source

Data-driven Stellar Intrinsic Colors and Dust Reddenings for Spectrophotometric Data: From the Blue-edge Method to a Machine Learning Approach

The Astrophysical Journal
Intrinsic colors (ICs) of stars are essential for studies on both stellar physics and dust reddening. In this work, we developed an XGBoost model to predict ICs with the atmospheric parameters T _eff , ${\rm{log}}\,g$ , and [M/H].
He Zhao, Shu Wang, Biwei Jiang, Jun Li, Dongwei Fan, Yi Ren, Xiaoxiao Ma   +6 more
doaj   +1 more source

PERICLES: A Set of Empirical Rotational Isochrones Modeled on Cool Dwarfs in Open Clusters and Wide Binaries

Astronomische Nachrichten, Volume 347, Issue 1, January 2026.
ABSTRACT Isochrones, equal‐age curves, are widely used in astrophysics to estimate stellar ages. Classical stellar parameters are, however, very limited in their usability for main sequence stars because of their weak age‐dependence. Here, rotation period measurements provide complementary information.
David Gruner, Sydney A. Barnes
wiley   +1 more source

The Flattest Infrared Extinction Curve in Four Isolated Dense Molecular Cloud Cores

The Astrophysical Journal Letters
The extinction curve of interstellar dust in the dense molecular cloud cores is crucial for understanding dust properties, particularly size distribution and composition.
Jun Li, Bingqiu Chen, Biwei Jiang, He Zhao, Botao Jiang, Xi Chen   +5 more
doaj   +1 more source

Heavy Metal Contamination in Chocolates and Candies: Sources, Health Risks, and Analytical Insights

Journal of Chemistry, Volume 2026, Issue 1, 2026.
The presence of heavy metals in chocolates and candies poses growing public health concerns, particularly for children who are frequent consumers. This review consolidates evidence on the occurrence, sources, toxicological impacts, and analytical monitoring of metals, including Pb, Cd, Hg, As, Cr, Ni, and Al, in confectionery products.
Mahmood Ahmed, Maryam, Ali Abbas Aslam, Fatima Aftab, Ahmad Saeed, Mudassar Sanaullah, Muhammad Hassan, Riaz Hussain, Eisha Eiman, Masooma Irfan, Muhammad Yaseen, Muhammad Zaeem Mehdi, Sohini Basu Roy   +12 more
wiley   +1 more source

Probing the Distinct Extinction Law of the Pillars of Creation in M16 with JWST

The Astrophysical Journal Letters
Investigating the extinction law in regions of high dust extinction, such as the Pillars of Creation within the M16 region, is crucial for understanding the densest parts of the interstellar medium (ISM).
Jun Li, Bingqiu Chen, Biwei Jiang, Jian Gao, Xi Chen   +4 more
doaj   +1 more source

Commodity risk assessment of Vitis spp. plants from Moldova

EFSA Journal, Volume 24, Issue 1, January 2026.
Abstract The European Commission requests EFSA to provide scientific opinions in the field of plant health in accordance with Article 29 of Regulation (EC) No 178/2002. Annex VI of Commission Implementing Regulation (EU) 2019/2072 lists plants, plant products and other objects whose introduction into the Union from certain third countries is prohibited.
EFSA Panel on Plant Health (PLH), Antonio Vicent Civera, Paula Baptista, Elisavet Chatzivassiliou, Jaime Cubero, Nik Cunniffe, Eduardo de la Peña, Nicolas Desneux, Anna Filipiak, Paolo Gonthier, Beata Hasiów‐Jaroszewska, Hervé Jactel, Blanca B. Landa, Lara Maistrello, David Makowski, Panagiotis Milonas, Nikos T. Papadopoulos, Roel Potting, Hanna Susi, Dirk Jan van der Gaag, Pedro Gómez, Annemarie Fejer Justesen, Andrea Lucchi, Gregor Urek, Jonathan Yuen, Lucia Zappala, Umberto Bernardo, Giovanni Bubici, Anna Vittoria Carluccio, Michela Chiumenti, Francesco Di Serio, Elena Fanelli, Paraskevi Kariampa, Cristina Marzachì, Agata Kaczmarek, Louise Matic, Olaf Mosbach‐Schulz, Anna Berlin   +37 more
wiley   +1 more source

Assessing the Effects of Composition and Surface Roughness on the Photopolarimetric Response of Planetary Regoliths

The Astrophysical Journal Supplement Series
This study is part of an ongoing project in which we experimentally examine the effect of composition (refractive index) and surface roughness on the scattering matrix elements of a set of well-characterized rough regolith simulants.
Francisco J. García-Izquierdo, Elisa Frattin, Julia Martikainen, Olga Muñoz, Alvaro Alvarez-Candal, Fernando Moreno, María Passas-Varo, Juan Carlos Gómez-Martín, Teresa Jardiel, Marco Peiteado, Amador C. Caballero, Gorden Videen, Johannes Markkanen, Antti Penttilä, Karri Muinonen   +14 more
doaj   +1 more source

The Reddening law outside the local group galaxies: The case of NGC 7552 and NGC 5236

The Astrophysical Journal, 1994
The dust reddening law from the UV to the near-IR for the extended regions of galaxies is here derived from the spectral distributions of the starburst spiral galaxies NGC 7552 and NGC 5236. The centers of these galaxies have similar absorption and emission line spectra, differing only if the strength of their interstellar lines and in the continuum ...
Anne L. Kinney, Daniela Calzetti, Eduardo Bica, Thaisa Storchi-Bergmann   +3 more
openaire   +1 more source