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Full-Text Articles in Physical Sciences and Mathematics

Mathematic Modeling Of Covid-19 In The United States, Yuanji Tang, Shixia Wang Apr 2020

Mathematic Modeling Of Covid-19 In The United States, Yuanji Tang, Shixia Wang

Coronavirus COVID-19 Publications by UMMS Authors

Since the early reports of COVID-19 cases in China in late January 2020 (1-2), the worst pandemic in 100 years has spread to the entire globe with approximately 2.4 million diagnosed cases and over 165,000 deaths up to April 20, 2020.

While scientists from various public and private groups use math and computer to simulate the course of this pandemic to try to predict how this outbreak might evolve (3), most of such analyses are either quite complicated or not publicly available.

Here a simple mathematic modeling approach is taken to track the outbreaks of COVID-19 in the ...


Analysis Of The Homeless Population Of Three Major Cities, Katherine Ferrara Apr 2020

Analysis Of The Homeless Population Of Three Major Cities, Katherine Ferrara

Honors Senior Capstone Projects

No abstract provided.


A Comprehensive Cybersecurity Policy For The United States Government According To Cyberattacks And Exploits In The 21st Century, Diana Hallisey Apr 2020

A Comprehensive Cybersecurity Policy For The United States Government According To Cyberattacks And Exploits In The 21st Century, Diana Hallisey

Honors Program Contracts

Adversaries launch cyberattacks or cyber-exploits with contrasting intentions and desired outcomes. A cyberattack is a malicious attempt by a state, third party, or individual to disrupt a computer’s network; whereas, a cyber-exploit is an action that uncovers and steals “confidential” information from a computer’s data. 1 Within this research paper, the main adversary of such cyberattacks and/or exploits will be the nation-state. The victims of these cyberattacks will range from multinational corporations, such as Sony, to nuclear programs in Iran. This essay will focus on four motivations behind such cyberattacks: (1) private sector hacking (the theft of ...


Weather And Climate Summary And Forecast: January 2020 Report, Gregory V. Jones Jan 2020

Weather And Climate Summary And Forecast: January 2020 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for January 2020. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


The Transition From Planar To En Echelon Morphology In A Single Vein In Shale: Insights From X-Ray Computed Tomography Scanning, Graham Dm Andrews, Sarah R. Brown, Johnathan Moore, Dustin Crandall, Paige Mackey Jan 2020

The Transition From Planar To En Echelon Morphology In A Single Vein In Shale: Insights From X-Ray Computed Tomography Scanning, Graham Dm Andrews, Sarah R. Brown, Johnathan Moore, Dustin Crandall, Paige Mackey

Faculty & Staff Scholarship

En echelon fractures and veins are among the most common and distinctive geological structures, yet their three-dimensional forms and relationships to surrounding structures are commonly unclear. X-ray computed tomography (CT) offers an unrivaled ability to examine structures within rocks in three dimensions, and it is applied here to a sample of drill core from the Marcellus Shale of southwestern Pennsylvania (USA). CT images yield qualitative and quantitative data on the transition from a pyrite-rich planar vein to an en echelon veinlet array, and on the heterogeneity of veinlets within the array. Using a combination of three- and two-dimensional images, geometric ...


Weather And Climate Summary And Forecast: December 2019 Report, Gregory V. Jones Dec 2019

Weather And Climate Summary And Forecast: December 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for December 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: November 2019 Report, Gregory V. Jones Nov 2019

Weather And Climate Summary And Forecast: November 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for November 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: October 2019 Report, Gregory V. Jones Oct 2019

Weather And Climate Summary And Forecast: October 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for October 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Measuring Circuit Splits: A Cautionary Note, Aaron-Andrew P. Bruhl Sep 2019

Measuring Circuit Splits: A Cautionary Note, Aaron-Andrew P. Bruhl

Aaron-Andrew P. Bruhl

A number of researchers have recently published new measures of the Supreme Court’s behavior in resolving conflicts in the lower courts. These new measures represent an improvement over prior, cruder approaches, but it turns out that measuring the Court’s resolutions of conflicts is surprisingly difficult. The aim of this methodological comment is to describe those difficulties and to establish several conclusions that follow from them. First, the new measures of the Court’s behavior are certainly imprecise and may reflect biased samples. Second, using the Supreme Court Database, which some studies rely on to assemble a dataset of ...


Weather And Climate Summary And Forecast: September 2019 Report, Gregory V. Jones Sep 2019

Weather And Climate Summary And Forecast: September 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for September 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: August 2019 Report, Gregory V. Jones Aug 2019

Weather And Climate Summary And Forecast: August 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for August 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: July 2019 Report, Gregory V. Jones Jul 2019

Weather And Climate Summary And Forecast: July 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for July 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: June 2019 Report, Gregory V. Jones Jun 2019

Weather And Climate Summary And Forecast: June 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for June 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: May 2019 Report, Gregory V. Jones May 2019

Weather And Climate Summary And Forecast: May 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for May 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: April 2019 Report, Gregory V. Jones Apr 2019

Weather And Climate Summary And Forecast: April 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for April 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: March 2019 Report, Gregory V. Jones Mar 2019

Weather And Climate Summary And Forecast: March 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for March 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: February 2019 Report, Gregory V. Jones Feb 2019

Weather And Climate Summary And Forecast: February 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for February 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


1890 - Report On Irrigation In The United States, Second Edition, Richard J. Hinton Jan 2019

1890 - Report On Irrigation In The United States, Second Edition, Richard J. Hinton

Miscellaneous Federal Documents & Reports

The report to the United States Senate Special Committee on Irrigation and Reclamation of Arid Lands was an inquiry into the progress and condition of irrigation involving the extent and character of the area within which the annual rain fall was not sufficient for industrial uses of the people. The inquiry involved the extent of the fall of rains or snow within an area, any evidence as to increase or decrease of precipitation resulting from agricultural settlement or of pastoral occupation, the increase of humidity, the destruction of the timber mainly by its use for settlement purposes, the effect of ...


1939 - A History Of The Water Resources Branch, Us Geological Survey, Volume I, From Predecessor Surveys To June 30, 1919 Jan 2019

1939 - A History Of The Water Resources Branch, Us Geological Survey, Volume I, From Predecessor Surveys To June 30, 1919

Miscellaneous Federal Documents & Reports

By 1938, the systematic studies of the water resources of the country and, therefore, the antecedents of the Water Resources Branch of the USGS were 50 years old. The history of the Water Resources Branch presents the struggle to reach into the unknown and, by the development of methods and instruments as well as the training of personnel to create a new art and a new science. This is Volume I of a six volume chronological summaries of the activities and achievements of the Water Resources Division of the U.S. Geological Survey.


Weather And Climate Summary And Forecast: January 2019 Report, Gregory V. Jones Jan 2019

Weather And Climate Summary And Forecast: January 2019 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for January 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Dimensionality And Factorial Invariance Of Religiosity Among Christians And The Religiously Unaffiliated: A Cross-Cultural Analysis Based On The International Social Survey Programme, Carlos Miguel Lemos, Ross Joseph Gore, Ivan Puga-Gonzalez, F. Leron Shults Jan 2019

Dimensionality And Factorial Invariance Of Religiosity Among Christians And The Religiously Unaffiliated: A Cross-Cultural Analysis Based On The International Social Survey Programme, Carlos Miguel Lemos, Ross Joseph Gore, Ivan Puga-Gonzalez, F. Leron Shults

VMASC Publications

We present a study of the dimensionality and factorial invariance of religiosity for 26 countries with a Christian heritage, based on the 1998 and 2008 rounds of the International Social Survey Programme (ISSP) Religion survey, using both exploratory and multi-group confirmatory factor analyses. The results of the exploratory factor analysis showed that three factors, common to Christian and religiously unaffiliated respondents, could be extracted from our initially selected items and suggested the testing of four different three-factor models using multi-group confirmatory factor analysis. For the model with the best fit and measurement invariance properties, we labeled the three resulting factors ...


A Policy Mechanism For Federal Recommendation Of Security Standards For Mobile Devices That Conduct Transactions, Ariel Huckabay Jan 2019

A Policy Mechanism For Federal Recommendation Of Security Standards For Mobile Devices That Conduct Transactions, Ariel Huckabay

Electronic Theses and Dissertations

The proliferation of mobile devices in the BRIC countries has prompted them to develop policies to manage the security of these devices. In China, mobile devices are a primary tool for payments. As a result, China instituted in 2017 a cyber security policy that applies to mobile devices giving China broad authority to manage cyber threats. The United States has a similar need for a cyber policy. Mobile devices are likely to become a primary payment tool in the United States soon. DHS has also identified a need for more effective security policy in mobile devices for government operations. This ...


Geologic Map And Structural Development Of The Noerthernmost Sur-Nacimiento Fault Zone, Central California Coast, Scott M. Johnston, John S. Singleton, Alan D. Chapman, Gabriella Murray Dec 2018

Geologic Map And Structural Development Of The Noerthernmost Sur-Nacimiento Fault Zone, Central California Coast, Scott M. Johnston, John S. Singleton, Alan D. Chapman, Gabriella Murray

Physics

The Sur-Nacimiento fault exposed along the central California coast (United States) juxtaposes the Salinian block arc against the Nacimiento block accretionary complex, cuts out the majority of the forearc basin and western arc, and requires a minimum of 150 km of orogen-normal crustal excision within the Mesozoic California convergent margin. Despite this significant strain, the kinematic evolution of the Sur-Nacimiento fault remains poorly understood, with diverse hypotheses suggesting sinistral, dextral, thrust, or normal displacement along the fault. This Late Cretaceous–Paleogene strain history is complicated by the location of the fault within a belt of subparallel faults that have accommodated ...


Weather And Climate Summary And Forecast: December 2018 Report, Gregory V. Jones Dec 2018

Weather And Climate Summary And Forecast: December 2018 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for December 2018. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: November 2018 Report, Gregory V. Jones Nov 2018

Weather And Climate Summary And Forecast: November 2018 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for November 2018. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Safety, Tolerability, And Pharmacokinetics Of Long-Acting Injectable Cabotegravir In Low-Risk Hiv-Uninfected Individuals: Hptn 077, A Phase 2a Randomized Controlled Trial., Raphael J Landovitz, Sue Li, Beatriz Grinsztejn, Halima Dawood, Albert Y Liu, Manya Magnus, Mina C Hosseinipour, Ravindre Panchia, Leslie Cottle, Gordon Chau, Paul Richardson, Mark A Marzinke, Craig W Hendrix, Susan H Eshleman, Yinfeng Zhang, Elizabeth Tolley, Jeremy Sugarman, Ryan Kofron, Adeola Adeyeye, David Burns, Alex R Rinehart, David Margolis, William R Spreen, Myron S Cohen, Marybeth Mccauley, Joseph J Eron Nov 2018

Safety, Tolerability, And Pharmacokinetics Of Long-Acting Injectable Cabotegravir In Low-Risk Hiv-Uninfected Individuals: Hptn 077, A Phase 2a Randomized Controlled Trial., Raphael J Landovitz, Sue Li, Beatriz Grinsztejn, Halima Dawood, Albert Y Liu, Manya Magnus, Mina C Hosseinipour, Ravindre Panchia, Leslie Cottle, Gordon Chau, Paul Richardson, Mark A Marzinke, Craig W Hendrix, Susan H Eshleman, Yinfeng Zhang, Elizabeth Tolley, Jeremy Sugarman, Ryan Kofron, Adeola Adeyeye, David Burns, Alex R Rinehart, David Margolis, William R Spreen, Myron S Cohen, Marybeth Mccauley, Joseph J Eron

Epidemiology Faculty Publications

BACKGROUND: Cabotegravir (CAB) is a novel strand-transfer integrase inhibitor being developed for HIV treatment and prevention. CAB is formulated both as an immediate-release oral tablet for daily administration and as a long-acting injectable suspension (long-acting CAB [CAB LA]) for intramuscular (IM) administration, which delivers prolonged plasma exposure to the drug after IM injection. HIV Prevention Trials Network study 077 (HPTN 077) evaluated the safety, tolerability, and pharmacokinetics of CAB LA in HIV-uninfected males and females at 8 sites in Brazil, Malawi, South Africa, and the United States.

METHODS AND FINDINGS: HPTN 077 was a double-blind, placebo-controlled phase 2a trial. Healthy ...


Weather And Climate Summary And Forecast: October 2018 Report, Gregory V. Jones Oct 2018

Weather And Climate Summary And Forecast: October 2018 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for October 2018. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Systemic Immunosuppression And Risk Of Age-Related Macular Degeneration, Harpal S. Sandhu, Joshua Lambert, Yan Xu, Henry J. Kaplan Sep 2018

Systemic Immunosuppression And Risk Of Age-Related Macular Degeneration, Harpal S. Sandhu, Joshua Lambert, Yan Xu, Henry J. Kaplan

Applied Statistics Laboratory Faculty Publications

A local immune response has been implicated in the pathogenesis of age-related macular degeneration (AMD), but it is unclear if systemic immunosuppressive/immunomodulatory therapy (IMT) protects against the onset and/or progression of AMD. We performed a retrospective cohort study using a Cox proportional hazards model of two cohorts. Cohort 1 included patients with stage V chronic kidney disease (CKD) status post kidney transplantation, on at least one IMT agent, and older than 50. Cohort 2 included patients with stage IV or V CKD who had not undergone kidney transplantation, were not on IMT, and were older than 50. The ...


Weather And Climate Summary And Forecast: September 2018 Report, Gregory V. Jones Sep 2018

Weather And Climate Summary And Forecast: September 2018 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for September 2018. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: August 2018 Report, Gregory V. Jones Aug 2018

Weather And Climate Summary And Forecast: August 2018 Report, Gregory V. Jones

Linfield College Wine Studies Reports

This report provides a summary of the weather and climate forecast for August 2018. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.