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The transverse lepton polarization asymmetry in pi_e2gamma decay may probe T-violating interactions beyond the Standard Model. Dalitz plot distributions of the expected effects are presented and compared to the contribution from the…

高能物理 - 唯象学 · 物理学 2007-05-23 F. Bezrukov , D. Gorbunov

Trees corresponding to $\Lambda$- and $\Xi$-$n$-coalescents can be both quite similar and fundamentally different compared to bifurcating tree models based on Kingman's $n$-coalescent. This has consequences for inference of a well-fitting…

概率论 · 数学 2020-10-26 Fabian Freund

Human activity continues to have an enormous negative impact on the ability of the planet to sustain human and other forms of life. Six out of the nine planetary boundaries have been crossed, a seventh is close to threshold. Prominent…

We review recent work aimed at modeling species extinction over geological time. We discuss a number of models which, rather than dealing with the direct causes of particular extinction events, attempt to predict overall statistical trends,…

adap-org · 物理学 2015-06-30 M. E. J. Newman , R. G. Palmer

The preservation of soil health is a critical challenge in the 21st century due to its significant impact on agriculture, human health, and biodiversity. We provide the first deep investigation of the predictive potential of machine…

机器学习 · 统计学 2024-02-20 Rosa Aghdam , Xudong Tang , Shan Shan , Richard Lankau , Claudia Solís-Lemus

The main topic of this thesis is the analysis of evolution equations reflecting issues in ecology and population dynamics. In mathematical modelling, the impact of environmental elements and the interaction between species is read into the…

偏微分方程分析 · 数学 2021-03-08 Elisa Affili

Understanding the future climate is crucial for informed policy decisions on climate change prevention and mitigation. Earth system models play an important role in predicting future climate, requiring accurate representation of complex…

机器学习 · 计算机科学 2024-01-09 Christian Reimers , David Hafezi Rachti , Guahua Liu , Alexander J. Winkler

Commonly recognized evolutionarily relevant effects of sexual reproduction include increased diversity, accelerated adaptation, and constrained accumulation of deleterious mutations, along with a secondary effect of species genotype…

种群与进化 · 定量生物学 2025-06-17 Assaf Marron , Smadar Szekely , Irun R. Cohen , David Harel

Phylogenetic inference-the derivation of a hypothesis for the common evolutionary history of a group of species- is an active area of research at the intersection of biology, computer science, mathematics, and statistics. One assumes the…

种群与进化 · 定量生物学 2016-06-21 Ruth Davidson , Joseph Rusinko , Zoe Vernon , Jing Xi

Can unicellular organisms survive a drastic temperature change, and adapt to it after many generations? In simulations of the Penna model of biological ageing, both extinction and adaptation were found for asexual and sexual reproduction as…

种群与进化 · 定量生物学 2007-05-23 D. Stauffer , H. Arndt

Along with the accumulation of atmospheric carbon dioxide, the loss of primary forests and other natural ecosystems is a major disruption of the Earth system causing global concern. Quantifying planetary warming from carbon emissions,…

大气与海洋物理 · 物理学 2024-02-28 Anastassia M. Makarieva , Andrei V. Nefiodov , Anja Rammig , Antonio Donato Nobre

We may anticipate that climate change will bring changes to the intensity and variability of near surface winds, either through local effects or by altering the large-scale flow. The impact of climate change on European wind resources has…

大气与海洋物理 · 物理学 2017-06-19 Richard Davy , Natalia Gnatiuk , Lasse Pettersson , Leonid Bobylev

Phylogenetic trees are a central tool in understanding evolution. They are typically inferred from sequence data, and capture evolutionary relationships through time. It is essential to be able to compare trees from different data sources…

种群与进化 · 定量生物学 2017-10-31 Michelle Kendall , Caroline Colijn

Rapidly expanding insect populations, deforestation, and global climate change threaten to destabilize key planetary carbon pools, especially the Earth's forests which link the micro-ecology of insect infestation to climate. To the extent…

种群与进化 · 定量生物学 2008-05-27 David Dunn , James P. Crutchfield

The strength of mid-latitude storm tracks shapes weather and climate phenomena in the extra-tropics, as these storm tracks control the daily to multi-decadal variability of precipitation, temperature and winds. By the end of this century,…

大气与海洋物理 · 物理学 2022-06-03 Rei Chemke , Yi Ming , Janni Yuval

We deal with the study of the evolution of the allelic frequencies, at a single locus, for a population distributed continuously over a bounded habitat. We consider evolution which occurs under the joint action of selection and arbitrary…

偏微分方程分析 · 数学 2017-01-27 Elisa Sovrano

1. Climate change is altering plant phenology globally with potential deleterious impacts on animal species and entire ecosystems, yet the long-term effects of climate change on tropical leaf production remain poorly understood. 2. We…

定量方法 · 定量生物学 2026-04-01 Laura Lüthy , Colin A. Chapman , Patrick Lauer , Patrick Omeja , Urs Kalbitzer

The intensification of European agriculture, characterized by increasing farm sizes, landscape simplification and reliance on synthetic pesticides, remains a key driver of biodiversity decline. While many studies have investigated this…

综合经济学 · 经济学 2025-05-27 Elia Moretti , Michel Loreau , Michael Benzaquen

Understanding the suitability of agricultural land for applying specific management practices is of great importance for sustainable and resilient agriculture against climate change. Recent developments in the field of causal machine…

Species tree estimation is a complex problem, due to the fact that different parts of the genome can have different evolutionary histories than the genome itself. One of the causes for this discord is incomplete lineage sorting (also called…

种群与进化 · 定量生物学 2019-04-09 Erin Molloy , Tandy Warnow