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Full-Text Articles in Physical Sciences and Mathematics
Modeling Phloem Temperatures Relative To Mountain Pine Beetle Phenology, Matthew Jared Lewis
Modeling Phloem Temperatures Relative To Mountain Pine Beetle Phenology, Matthew Jared Lewis
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
We explore a variety of methods to estimate phloem temperatures from ambient air temperatures suitable for the mountain pine beetle, Dendroctonus ponderosae. A model's ability to induce the same phenology generated from observed phloem temperatures measures its effectiveness rather than a simple reconstruction of phloem temperatures. From a model's phenology results we are able to ascertain whether the model produces a similar amount of developmental energy exhibited by observed phloem temperatures.
Three models performed best: Newton, Newton South and Matching. The Newton model uses Newton's Law of Cooling to effectively estimate northern aspect phloem temperatures. The Newton South model …
Dietary Patterns And Cognitive Decline In Aged Populations, Austin J. Bowles
Dietary Patterns And Cognitive Decline In Aged Populations, Austin J. Bowles
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
In this paper, we discuss distinctive features of longitudinal studies, and illustrate two regression-based methods for the analysis of longitudinal data. A study of dietary patterns and cognitive decline (Cache County Memory Study) is used to motivate our discussion and analysis. Cognitive decline is a risk factor for Alzheimer’s disease, the sixth leading cause of all deaths among Americans. The study attempted to identify dietary patterns associated with reduced risk of age-related cognitive decline in elderly populations. Higher levels of adherence to the Dietary Approaches to Stop Hypertension (DASH) and/or Mediterranean diets were found to be associated with increased cognitive …