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  • Author(s):
    Yujie Hu, Changzhen Wang, Ruiyang Li, Fahui Wang
    Abstract:

    Estimating a massive drive time matrix between locations is a practical but challenging task. The challenges include availability of reliable road network (including traffic) data, programming expertise, and access to high-performance computing resources. This research proposes a method for estimating a nationwide drive time matrix between ZIP code areas in the U.S. - a geographic unit at which many national datasets including health information are compiled and distributed. The method (1) do…

    Date Published:
    2020-06
    Record Visibility:
    Public
  • Author(s):
    Verhagen, Rory, O'Brien, Jake W., Thomas, Kevin, V, Sherman, Paul, Ahmed, Warish, Simpson, Stuart L., Dwyer, Jason, Choi, Phil, Mueller, Jochen F., Clarke, Leah, Thi Minh Hong Nguyen, Bibby, Kyle, Tscharke, Ben, Bivins, Aaron, Zaugg, Julian, Bertsch, Paul M., Edson, Janette
    Abstract:

    Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus which causes coronavirus disease (COVID-19), has spread rapidly across the globe infecting millions of people and causing significant health and economic impacts. Authorities are exploring complimentary approaches to monitor this infectious disease at the community level. Wastewater-based epidemiology (WBE) approaches to detect SARS-CoV-2 RNA in municipal wastewater are being implemented worldwide as an environmental surv…

    Date Published:
    2021-03-20
    Record Visibility:
    Public
  • Author(s):
    Wang, Dong, Zhang, Daniel, Zhang, Yang
    Abstract:

    This paper focuses on the migratable traffic risk estimation problem in intelligent transportation systems using the social sensing. The goal is to accurately estimate the traffic risk of a target area where the ground truth traffic accident reports are not available by leveraging an estimation model from a source area where such data is available. Two important challenges exist. The first challenge lies in the discrepancy between source and target areas and such discrepancy would prevent a d…

    Date Published:
    2021-02-01
    Record Visibility:
    Public
  • Author(s):
    Engdahl, Nicholas B., Bolster, Diogo, Porta, Giovanni, Sherman, Thomas
    Abstract:

    Heterogeneity across a broad range of scales in geologic porous media often manifests in observations of non-Fickian or anomalous transport. While traditional anomalous transport models can successfully make predictions in certain geological systems, increasing evidence suggests that assumptions relating to independent and identically distributed increments constrain where and when they can be reliably applied. A relatively novel model, the Spatial Markov model (SMM), relaxes the assumption o…

    Date Published:
    2021-01-01
    Record Visibility:
    Public
  • Author(s):
    van Poorten, Brett T., Dassow, Colin J., Iwicki, Carolyn M., Jones, Stuart E., Trudeau, Ashley, Solomon, Christopher T., Jensen, Olaf P., Sass, Greg G.
    Abstract:

    Measuring fishing effort is one important element for effective management of recreational fisheries. Traditional intensive angler intercept survey methods collect many observations on a few water bodies per year to produce highly accurate estimates of fishing effort. However, scaling up this approach to understand landscapes with many systems, such as lake districts, is problematic. In these situations, spatially extensive sampling might be preferable to the traditional intensive sampling me…

    Date Published:
    2021-01-01
    Record Visibility:
    Public
  • Author(s):
    Stone, Daniel, Greaves, Justin, Bibby, Kyle, Wu, Zhenyu
    Abstract:

    Fecal indicator bacteria (FIB) are typically used to monitor microbial water quality but are poor representatives of viruses due to different environmental fate. Viral fecal indicators have been proposed as alternatives to FIB; however, data evaluating the persistence of emerging viral fecal indicators under realistic environmental conditions is necessary to evaluate their potential application. In this study, we examined the persistence of five viral fecal indicators, including crAssphage an…

    Date Published:
    2020-12-01
    Record Visibility:
    Public
  • Author(s):
    Gozde Basara, Mortaza Saeidi-Javash, Xiang Ren, Godhan Bahcecioglu, Brian C. Wyatt, Babak Anasori, Yanliang Zhang, Pinar Zorlutuna
    Abstract:

    Tissue engineered cardiac patches have great potential as a therapeutic treatment for myocardial infarction (MI). However, for successful integration with the native tissue and proper function of the cells comprising the patch, it is crucial for these patches to mimic the ordered structure of the native extracellular matrix and the electroconductivity of the human heart. In this study, a new composite construct that can provide both conductive and topographical cues for human induced pluripot…

    Date Published:
    2020-12
    Record Visibility:
    Public
  • Author(s):
    Muhammad Ahmad, Chao Tang, Liu Yang, Andriy Yaroshchuk, Merlin Bruening
    Abstract:

    Development of anion-exchange membranes (AEMs) with selectivities among anions may expand the applications of these membranes in salt separations. This work shows that layer-by-layer coating of aliphatic polyamide AEMs with poly(4-styrenesulfonate) (PSS)/protonated poly(allylamine) (PAH) films enhances Cl − /SO 42− dialysis selectivities, and the extent of this enhancement depends on the source-phase salt concentrations. For a source phase containing 0.01 M NaCl and 0.01 M Na 2 SO 4 and a rec…

    Date Published:
    2019-02
    Record Visibility:
    Public
  • Author(s):
    J. Schiltz, Andrew Rosenberger, Todd Render, Bernice Aboud Gatrell, Haibo Qu, Colton Steiner, Paul McGinn, Steve Schmid
    Abstract:

    Ceramics have exceptional tribological performance in high wear applications, but susceptibility to brittle fracture requires expensive postprocessing, including hot isostatic pressing and polishing. Consequently, additive manufacturing (AM) represents a collection of potentially costsaving approaches for ceramic production. AM technologies have been demonstrated for oxide ceramics, but the performance of self-mated AM materials remains unknown and underscores a critical knowledge gap. Alumin…

    Date Published:
    2019-06
    Record Visibility:
    Public
  • Author(s):
    K. Manukyan, C. Fesano, A. Majumdar, G. Peaslee, M. Raddell
    Abstract:

    This work presents results of macro, micro, and nanoscale surface characterization for a set of Roman denarii, ranging from 136 BCE to 240 CE, using large-scale X-ray fluorescence (XRF) mapping, particle-induced X-ray emission (PIXE) spectroscopy, focused-ion-beam-assisted scanning electron microscopy (FIB-SEM) with energy dispersive spectroscopy (EDS). The combination of XRF and PIXE, with varying beam energies, allowed for visualization and quantification of individual elements as a functio…

    Date Created:
    2019-08-15
    Record Visibility:
    Public
  • Author(s):
    Lisa Irimata, Tracy Vargo-Gogola, Ryan Roeder
    Abstract:

    A preclinical murine model of hydroxyapatite (HA) breast microcalcifications (µcals), which are an important clinical biomarker for breast cancer detection, was used to investigate the independent effects of high affinity bisphosphonate (BP) ligands and a polyethylene glycol (PEG) spacer on targeted delivery of gold nanoparticles (Au NPs) for contrast-enhanced radiographic detection. The addition of BP ligands to PEGylated Au NPs (BP-PEG-Au NPs) resulted in five-fold greater binding affinity …

    Date Published:
    2018
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    Public
  • Author(s):
    Yumiko Tokusumi, Tsuyoshi Tokusumi, Robert A. Schulz
    Abstract:

    Acute inflammation can cause serious tissue damage and disease in physiologically-challenged organisms. The precise mechanisms leading to these detrimental effects remain to be determined. In this study, we utilize a reproducible means to induce cellular immune activity in Drosophila larvae in response to mechanical stress. That is, forceps squeeze-administered stress induces lamellocytes, a defensive hemocyte type that normally appears in response to wasp infestation of larvae. The posterior…

    Date Published:
    2018-07
    Record Visibility:
    Public