Results 21 to 30 of about 76,641 (279)

Cross-currents between biology and mathematics: The codimension of pseudo-plateau bursting

Discrete & Continuous Dynamical Systems - A, 2012
A great deal of work has gone into classifying bursting oscillations, periodic alternations of spiking and quiescence modeled by fast-slow systems. In such systems, one or more slow variables carry the fast variables through a sequence of bifurcations that mediate transitions between oscillations and steady states. A rigorous classification approach is
Osinga, HM, Sherman, A, Tsaneva-Atanasova, KT   +2 more
openaire   +3 more sources

How the land use/cover changes and environmental factors at different scales affect lake water quality in arid and semi-arid regions

Frontiers in Ecology and Evolution, 2023
The quantitative relationship between land use/cover change (LUCC) within basins, lake water environmental factors, and water quality has long been a popular research area.
Xuhua Liu, Xuhua Liu, Huamin Liu, Huamin Liu, Huamin Liu, Jin Jing, Yang Liu, Zhichao Xu, Xiaoai Cao, Linqian Ma, Yi Zhuo, Yi Zhuo, Yi Zhuo, Lu Wen, Lu Wen, Lu Wen, Lixin Wang, Lixin Wang, Lixin Wang   +18 more
doaj   +1 more source

A global map of root biomass across the world's forests [PDF]

Earth System Science Data, 2021
As a key component of the Earth system, roots play a key role in linking Earth's lithosphere, hydrosphere, biosphere and atmosphere. Here we combine 10 307 field measurements of forest root biomass worldwide with global observations of forest structure ...
Y. Huang, Y. Huang, P. Ciais, M. Santoro, D. Makowski, D. Makowski, J. Chave, D. Schepaschenko, D. Schepaschenko, D. Schepaschenko, R. Z. Abramoff, D. S. Goll, H. Yang, Y. Chen, W. Wei, S. Piao, S. Piao, S. Piao   +17 more
doaj   +1 more source

Optimal topological simplification of discrete functions on surfaces [PDF]

, 2010
We solve the problem of minimizing the number of critical points among all functions on a surface within a prescribed distance {\delta} from a given input function.
A. Danner, A. Gyulassy, A. Hatcher, A. Kosinski, A. Wächter, A. Zomorodian, A.T. Lundell, Carsten Lange, D. Cohen-Steiner, D. Cohen-Steiner, H. Edelsbrunner, H. Edelsbrunner, H. Edelsbrunner, H. King, J. Eells, J. Milnor, J.B. Kruskal, M. Joswig, M. Morse, M.K. Chari, Max Wardetzky, P. Soille, P. Soille, P.K. Agarwal, R. Forman, R. Forman, S.K. Jenson, T. Banchoff, T. Kaczynski, T. Lewiner, T.H. Cormen, Ulrich Bauer, W. Kühnel   +32 more
core   +2 more sources

ENSO Amplitude Asymmetry in Met Office Hadley Centre Climate Models

Frontiers in Climate, 2021
Long climate simulations with the Met Office Hadley Centre General Circulation Model show weak El Niño-Southern Oscillation (ENSO) amplitude asymmetry between El Niño and La Niña phases compared with observations.
Sarah Ineson, Nick J. Dunstone, Hong-Li Ren, Richard Renshaw, Malcolm J. Roberts, Adam A. Scaife, Adam A. Scaife, Kuniko Yamazaki   +7 more
doaj   +1 more source

Opinion: The scientific and community-building roles of the Geoengineering Model Intercomparison Project (GeoMIP) – past, present, and future [PDF]

Atmospheric Chemistry and Physics, 2023
The Geoengineering Model Intercomparison Project (GeoMIP) is a coordinating framework, started in 2010, that includes a series of standardized climate model experiments aimed at understanding the physical processes and projected impacts of solar ...
D. Visioni, B. Kravitz, B. Kravitz, A. Robock, S. Tilmes, J. Haywood, J. Haywood, O. Boucher, M. Lawrence, M. Lawrence, P. Irvine, U. Niemeier, L. Xia, G. Chiodo, C. Lennard, S. Watanabe, J. C. Moore, J. C. Moore, J. C. Moore, H. Muri   +19 more
doaj   +1 more source

Analytical Solutions for Steady-State Multiwell Aquifer Tests in Rectangular Aquifers by Using Double Fourier Transform: A Case Study in the Ordos Plateau, China

Geofluids, 2020
Straightforward solutions have long been expected for the analysis of multiwell aquifer tests. In this paper, we derive series analytical solutions of steady-state groundwater flow in a rectangular-shaped aquifer with pumping/injection wells for both ...
Jun-Zhi Wang, Xu-Sheng Wang, Qing-Bo Li, Wei-Feng Wan   +3 more
doaj   +1 more source

Effect of dietary adherence on the body weight plateau: a mathematical model incorporating intermittent compliance with energy intake prescription , , [PDF]

The American Journal of Clinical Nutrition, 2014
Clinical weight loss in individuals typically stabilizes at 6 mo. However, validated models of dynamic energy balance have consistently shown weight plateaus between 1 and 2 y. The cause for this discrepancy is unclear.We developed 2 mathematical models on the basis of the first law of thermodynamics to investigate plausible explanations for reaching ...
Diana M, Thomas, Corby K, Martin, Leanne M, Redman, Steven B, Heymsfield, Steven, Lettieri, James A, Levine, Claude, Bouchard, Dale A, Schoeller   +7 more
openaire   +2 more sources

Sichuan Rainfall Prediction Using an Analog Ensemble

Atmosphere, 2023
This study aimed to address the significant bias in 0–44-day precipitation forecasts under numerical weather conditions. To achieve this, we utilized observational data obtained from 156 surface stations in the Sichuan region and reanalysis grid data ...
Pengyou Lai, Jingtao Yang, Lexi Liu, Yu Zhang, Zhaoxuan Sun, Zhefan Huang, Duanzhou Shao, Linbin He   +7 more
doaj   +1 more source

Impacts of growth form and phylogenetic relatedness on seed germination: A large‐scale analysis of a subtropical regional flora

Ecology and Evolution, 2021
Plant regeneration strategy plays a critical role in species survival and can be used as a proxy for the evolutionary response of species to climate change.
JuHong Wang, GeXi Xu, Wen Chen, YanBo Ma, Wei Qi, ChunHui Zhang, XianLiang Cui   +6 more
doaj   +1 more source