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2014-01-01

Alex Potapov, Ulrike E. Schlagel, Mark A. Lewis

We use an evolutionary approach to find “most appropriate” dispersal models for ecological applications. From a random walk with locally or nonlocally defined transition probabilities we derive a family of diffusion equations. We assume a monotonic dependence of its diffusion coefficient on...

2016-01-01

Ramsfeld, Tod

Symbiotic relationships between insects and fungi are known to cause tree mortality either through direct damage by larval feeding that can be facilitated by symbiotic fungi, or through insects vectoring pathogens directly to healthy trees. Within their native ranges, the impacts of...

2015-01-01

Lia M. Daniels, Virginia, M. C. Tze, Thomas Goetz

Research has shown that boredom impedes students’ academic functioning. Although recent studies have identified varying causes of boredom in school settings and the effectiveness of cognitive-approach coping in managing this negative emotion, little is known about how the perceived causes of...

2016-01-01

Deanna R Funk, Normand G Boulé, Peter A Senior, Jane E Yardley

Islet transplantation (ITx) is effective in preventing severe hypoglycemia by restoring glucose-dependent insulin secretion in type 1 diabetes (T1D), but may not normalize glucose regulation. Studies suggest that physical activity plays a role in maintaining β-cell mass and function in...

2015-01-01

Yardley, Jane E., Sigal, Ronald J.

Fear of hypoglycemia is one of the main barriers to physical activity for individuals with type 1 diabetes. Recent studies indicate that anaerobic forms of exercise (i.e., resistance exercise/weight lifting, sprints, and high-intensity intervals) can attenuate exercise-related declines in blood...

2016-01-01

Jimmy Garnier, Mark Lewis

Range expansion and range shifts are crucial population responses to climate change. Genetic consequences are not well understood but are clearly coupled to ecological dynamics that, in turn, are driven by shifting climate conditions. We model a population with a deterministic reaction– diffusion...

2021-05-01

Li, Long, Cartigny, Pierre, Li, Kan

Roaldite (Fe4N) is one of the few nitride minerals found in meteorites. Their nitrogen (N) isotopic signatures carry important information for understanding the early N cycle in the proto-solar nebula. However, the lack of knowledge on the N isotopic effects from nitride formation to its survival...

2018-01-01

Quattrini, Mattia, Liang, Nuanyi, Fortina, Maria Grazia, Xiang, Sheng, Curtis, Jonathan M., Gänzle, Michael G.

Fungal spoilage of bread remains an unsolved issue in bread making. This work aims to identify alternative strategies to conventional preservatives in order to prevent or delay fungal spoilage of bread. The minimum inhibitory concentration (MIC) of bacterial metabolites and chemical preservatives...

2021-01-05

Pouria Ramazi, Mélodie Kunegel-Lion, Russell Greiner, Mark A. Lewis

Although ecological models used to make predictions from underlying covariates have a record of success, they also suffer from limitations. They are typically unable to make predictions when the value of one or more covariates is missing during the testing. Missing values can be estimated but...

2019-11-12

Ren, K., Kim, A. M., Kuhn, K.

This study introduces a novel method of merging disparate but complementary datasets and applying machine learning techniques to ground delay program (GDP) data. More specifically, it aims to characterize GDPs with respect to changing weather forecasts, GDP plan parameters, and operational...