Results 31 to 40 of about 509 (137)
Tag systems and Collatz-like functions
Theoretical Computer Science, 2008 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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A Generalized Resource‐Constrained Framework for Quantifying Ecosystem Water and Carbon Fluxes
Water Resources Research, Volume 62, Issue 6, June 2026.Abstract Gross primary productivity (GPP) and evapotranspiration (ET) represent two fundamental processes in coupled water and carbon cycles. The strong regulation of ecosystem carbon and water fluxes by stomata is well understood at the leaf level. However, the coupling is complex at regional or ecosystem scales.
Shuai Wang +8 more
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Diversity and Distributions, Volume 32, Issue 4, April 2026.ABSTRACT Aim Grasses comprise three main photosynthetic pathway variants (C3‐BOP, C3‐PACMAD and C4‐PACMAD hereafter referred to as C4). We sought to confirm climate niche differences among these photosynthetic pathway variants and assessed whether predicted non‐native grass range shift patterns with climate change differ among photosynthetic pathway ...
Curtis C. Daehler +4 more
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Generalized Collatz Functions: Cycle Lengths and Statistics
International Journal of Undergraduate Research and Creative Activities, 2012 Consider the function T (n) defined on the positive integers as follows. If n is even, T (n) = n/2. If n is odd, T (n) = 3n + 1. The Collatz Conjecture states that for any integer n, the sequence n, T (n), T (T (n)), . . . will eventually reach 1. We consider several generalizations of this function, focusing on functions which replace "3n + 1" with ...
Messerman, Hayden R +2 more
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Detecting and attributing climate change effects on vegetation: Australia as a test case
PLANTS, PEOPLE, PLANET, Volume 8, Issue 2, Page 461-485, March 2026.Climate change is contributing to vegetation changes that threaten life support systems. Yet, inherent climatic variability and past and present human actions—such as clearing, burning and grazing regimes—also alter vegetation and complicate understanding of vegetation change. Australian ecosystems exemplify such complexity.
Laura J. Williams +14 more
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100 years of GAMM: Motivation, history and achievements
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 1, January 2026.Abstract The International Association of Applied Mathematics and Mechanics (Gesellschaft für Angewandte Mathematik und Mechanik, GAMM) was founded in 1923 with the goal to strengthen the field of scientific engineering by the foundation of an Engineering Association with strong scientific contacts to Applied Mathematics.
Wolfgang Ehlers
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Journal of Advances in Modeling Earth Systems, Volume 18, Issue 1, January 2026.Abstract Drought conditions cause stress to terrestrial ecosystems and make their accurate representation in models challenging. The Canadian LAnd Surface Scheme Including biogeochemical Cycles (CLASSIC) employs an empirical approach to link soil moisture stress with stomatal conductance. Such approaches typically perform poorly during drought.
Muhammad Umair +8 more
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Journal of Advances in Modeling Earth Systems, Volume 17, Issue 12, December 2025.Abstract The water and carbon exchange between the land surface and the atmosphere is regulated by meteorological conditions and plant physiological processes. Traditional mechanistic modeling approaches, for example, the Earth system model ICON‐ESM with the land component JSBACH4, are hampered by relatively rigid parameterizations for stomatal ...
Reda ElGhawi +6 more
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Register‐Based and Stack‐Based Virtual Machines: Which Perform Better in JIT Compilation Scenarios?
Software: Practice and Experience, Volume 55, Issue 11, Page 1896-1910, November 2025.ABSTRACT Background Just‐In‐Time (JIT) compilation plays a critical role in optimizing the performance of modern virtual machines (VMs). While the architecture of VMs–register‐based or stack‐based–has long been a subject of debate, empirical analysis focusing on JIT compilation performance is relatively sparse. Objective In this study, we aim to answer
Bohuslav Šimek +2 more
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Journal of Advances in Modeling Earth Systems, Volume 17, Issue 11, November 2025.Abstract Accurately predicting terrestrial ecosystem responses to climate change over long‐timescales is crucial for addressing global challenges. This relies on mechanistic modeling of ecosystem processes through land surface models (LSMs). Despite their importance, LSMs face significant uncertainties due to poorly constrained parameters, especially ...
Nina Raoult +28 more
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