Results 141 to 150 of about 183,857 (232)
Water Resources Research, Volume 62, Issue 10, October 2026.Abstract Bedload transport widely occurs in natural environments and encompasses flow regimes from saltation to sheet‐flow, with markedly different fluid‐particle interaction characteristics. Understanding these mechanisms requires a numerical tool capable of capturing both the turbulence and fluid‐particle interactions, for which challenges exist due ...
Yuxiang Liu, Lu Jing, Zi Wu, Xudong Fu
wiley +1 more source
Archaeometry, Volume 68, Issue 5, Page 994-1008, October 2026.ABSTRACT This study examines Wari obsidian production in a cache of 39 bifaces found at the Late Moche site of San José de Moro (Jequetepeque Valley, North Coast of Peru, 700–850 ad). Portable X‐ray fluorescence, geometric morphometric, and technological analyses were used to investigate raw material provenance and bifacial production.
Antonio Pérez‐Balarezo +2 more
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Bulletin of Economic Research, Volume 78, Issue 4, Page 784-802, October 2026.ABSTRACT This paper examines student admissions to higher education based on past performance, focusing on two measures: high school GPA and national exam scores. GPA is teacher‐assigned and based on repeated assessments, while these exams are externally graded, one‐off standardized tests. Using a nationwide dataset, we investigate how the relevance of
Pedro Luis Silva +2 more
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Geographical Analysis, Volume 58, Issue 4, October 2026.ABSTRACT Scale is central to inference in natural and social systems, and geography and ecology have treated it as an explicit object of theory for decades. This paper builds on that work with a formal view in which scale is a degree of freedom of description, parameterizing both the mappings between representations and the metric defining distance and
Eric Vaz
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Random Carbon Tax Policy and Investment Into Emission Abatement Technologies
Mathematical Finance, Volume 36, Issue 4, Page 804-825, October 2026.ABSTRACT We analyze the problem of a profit‐maximizing electricity producer, subject to carbon taxes, who decides on investments into CO2$\rm CO_2$ abatement technologies. We assume that the carbon tax policy is random and that the investment in the abatement technology is divisible, irreversible, and subject to transaction costs.
Katia Colaneri +2 more
wiley +1 more source
Group size modulates kinship dynamics and selection on social traits. [PDF]
Evol LettHe P +6 more
europepmc +1 more source
Dam Management in the Era of Climate Change
Mathematical Finance, Volume 36, Issue 4, Page 870-895, October 2026.ABSTRACT Climate change has a dramatic impact, particularly by concentrating rainfall into a few short periods, interspersed with long dry spells. In this context, the role of dams is crucial. We consider the optimal control of a dam, where the water level must neither exceed a designated safety threshold nor fall below a minimum level to ensure ...
Cristina Di Girolami +3 more
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A nonlocal West Nile virus model with nonlocal free boundary conditions driven by both mosquitoes and birds. [PDF]
J Math BiolLong X, Lou Y, Ni W, Yi T.
europepmc +1 more source
Evidence for scale-dependent root-antation feedback and its role in halting the spread of a pantropical shrub into an endemic sedge. [PDF]
PNAS Nexus, 2023 Bennett JJR +6 more
europepmc +1 more source
Rapid Expansion of the Eastern China Lineage (Haplotype P) of <i>Phragmites australis</i> in Caohai Lake, Guizhou, China. [PDF]
Ecol EvolLi W +6 more
europepmc +1 more source