Results 291 to 300 of about 247,655 (335)

Inferring End‐Members From Geoscience Data Using Simplex Projected Gradient Descent‐Archetypal Analysis

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 2, June 2025.
Abstract End‐member mixing analysis (EMMA) is widely used to analyze geoscience data for their end‐members and mixing proportions. Many traditional EMMA methods depend on known end‐members, which are sometimes uncertain or unknown. Unsupervised EMMA methods infer end‐members from data, but many existing ones don't strictly follow necessary constraints ...
Zanchenling Wang, Tao Wen
wiley   +1 more source

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Surveying the distant Universe. [PDF]

open access: yesOpen Res Eur
van Kampen E   +29 more
europepmc   +1 more source

Solar Cycle Detected in Natural Tritium of Ice Layers Before the Nuclear Era

open access: yesJournal of Geophysical Research: Atmospheres, Volume 130, Issue 9, 16 May 2025.
Abstract The 11‐year cycle of the solar activity affects the production rate of cosmogenic isotopes. For tritium in precipitation, it has been just recently proven that this link exists. Here we show, for the first time, a tritium ice core time series which extends back to 1923, covering a time period that avoids the presence of artificial tritium from
L. Palcsu   +10 more
wiley   +1 more source

Bound star clusters observed in a lensed galaxy 460 Myr after the Big Bang. [PDF]

open access: yesNature
Adamo A   +27 more
europepmc   +1 more source

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2021–2022

open access: yesMass Spectrometry Reviews, Volume 44, Issue 3, Page 213-453, May/June 2025.
Abstract The use of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this review is the 12th update of the original article published in 1999 and brings coverage of the literature to the end of 2022.
David J. Harvey
wiley   +1 more source

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: The hidden circumgalactic medium. [PDF]

open access: yesOpen Res Eur
Lee M   +31 more
europepmc   +1 more source

Deciphering the role of epistemic injustice in school‐based citizen science: Sources, implications, and possible ways for mitigation

open access: yesJournal of Research in Science Teaching, Volume 62, Issue 5, Page 1350-1387, May 2025.
Abstract Participation in citizen science, a research approach in which nonscientists take part in performing research, is a growing practice in schools. A main premise in school‐based citizen science is that through their participation, students and teachers make meaningful contributions to the advancement of science.
Osnat Atias   +3 more
wiley   +1 more source

Star formation shut down by multiphase gas outflow in a galaxy at a redshift of 2.45. [PDF]

open access: yesNature
Belli S   +17 more
europepmc   +1 more source

Comparison of Interannual Oscillations in the F, E, and D‐Region Ionosphere Using Longterm Ground‐Based Measurements

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 5, May 2025.
Abstract This comprehensive study focuses on interannual oscillations from 1 to 25 years in the F, E, and D region ionosphere. By leveraging longterm (1960–2018) continuous ground‐based ionosonde and phase height measurements in northern Germany, we have identified the peak periods and temporal variations of these oscillations using advanced analysis ...
Mani Sivakandan   +5 more
wiley   +1 more source

The Rule of Law and Full‐Bodied Promulgation

open access: yesThe Modern Law Review, Volume 88, Issue 3, Page 502-526, May 2025.
Promulgation is a fundamental component of most theories about the rule of law yet remains an under‐theorised aspect of the concept. This article makes two contributions concerning the functions of promulgation in the rule of law. First, promulgation can be broken down into formal promulgation, the process of formally publishing rules, and full‐bodied ...
James Milton
wiley   +1 more source

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