Now showing items 11-20 of 1785
A Method for Detecting Atmospheric Lagrangian Coherent Structures Using a Single Fixed-Wing Unmanned Aircraft System
The transport of material through the atmosphere is an issue with wide ranging implications for fields as diverse as agriculture, aviation, and human health. Due to the unsteady nature of the atmosphere, predicting how ...
Prediction of Dynamic Stability Using Mapped Chebyshev Pseudospectral Method
A mapped Chebyshev pseudospectral method is extended to solve three-dimensional unsteady flow problems. As the classical Chebyshev spectral approach can lead to numerical instabilities due to ill conditioning of the spectral ...
The Flavonoid Kaempferol Ameliorates Streptozotocin-Induced Diabetes by Suppressing Hepatic Glucose Production
In diabetes mellitus, the excessive rate of glucose production from the liver is considered a primary contributor for the development of hyperglycemia, in particular, fasting hyperglycemia. In this study, we investigated ...
Chemical modification of L-glutamine to alpha-amino glutarimide on autoclaving facilitates Agrobacterium infection of host and non-host plants: A new use of a known compound
Background Accidental autoclaving of L-glutamine was found to facilitate the Agrobacterium infection of a non host plant like tea in an earlier study. In the present communication, we elucidate the structural changes in ...
Land Cover Change in Northern Botswana: The Influence of Climate, Fire, and Elephants on Semi-Arid Savanna Woodlands
Complex couplings and feedback among climate, fire, and herbivory drive short- and long-term patterns of land cover change (LCC) in savanna ecosystems. However, understanding of spatial and temporal LCC patterns in these ...
Letitia Preston Floyd: Supplementary Notes
(Smithfield Preston Foundation; Virginia Polytechnic Institute and State University, Department of History, 2016)
A presentation of new information about Letitia and her final home in Burke Garden.
A structural equation model looking at student’s participatory behavior and their success in Calculus I
Abstract Background Government projections in the USA indicate that the country will need a million more science, technology, engineering, and mathematics (STEM) graduates ...
Collaborative Information and Multimedia to Assess Team Interaction in Technology Teacher Preparation
(Council on Technology Teacher Education and the International Technology and Engineering Educators Association; Virginia Tech. Digital Library and Archives, 2011)
Subset-Continuous-Updating GMM Estimators for Dynamic Panel Data Models
The two-step GMM estimators of Arellano and Bond (1991) and Blundell and Bond (1998) for dynamic panel data models have been widely used in empirical work; however, neither of them performs well in small samples with weak ...