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Articles 45211 - 45240 of 294392

Full-Text Articles in Physical Sciences and Mathematics

Allocation Of U.S. Biomass Production To Food, Feed, Fiber, Fuel And Exports, Christopher L. Lant, Suman Paudel, Kaeli Mueller, Grace Larson, Gustavo A. Ovando-Montejo, Jennifer E. Givens Mar 2023

Allocation Of U.S. Biomass Production To Food, Feed, Fiber, Fuel And Exports, Christopher L. Lant, Suman Paudel, Kaeli Mueller, Grace Larson, Gustavo A. Ovando-Montejo, Jennifer E. Givens

Environment and Society Faculty Publications

This paper analyzes the end uses—food, feed, fiber, fuel, and exports—of biomass production in the U.S. in 1997, 2002, 2007, and 2012. They are also analyzed at the state level in 2012. Biomass production is measured as human appropriation of net primary production (HANPP), an ecological footprint measured as carbon fixed through photosynthesis, derived from data on crop, timber and grazing yields. HANPP was allocated to end uses using publicly available sources from the U.S. Department of Agriculture and internet-based sources publishing data on agricultural trade. HANPP was 717–834 megatons (MT) of carbon per year, which comprised 515–615 MT of …


Time Series Analysis Of Pseudo-Nitzschia Species Composition, Domoic Acid, And Environmental Conditions In The Gulf Of Maine From 2013-2020, Christina Chadwick Mar 2023

Time Series Analysis Of Pseudo-Nitzschia Species Composition, Domoic Acid, And Environmental Conditions In The Gulf Of Maine From 2013-2020, Christina Chadwick

USF Tampa Graduate Theses and Dissertations

Phytoplankton are abundant in both fresh and marine waters and can form harmful algal blooms (HABs) by producing potent toxins that have devastating effects on human, wildlife, and economic health. The HAB-forming diatom genus, Pseudo-nitzschia, occurs globally and approximately half of the 59 currently identified species can produce the neurotoxin, domoic acid (DA). DA accumulates in shellfish and finfish and can cause Amnesic Shellfish Poisoning (ASP) in humans and DA Poisoning (DAP) in several species of wildlife, resulting in severe neurological dysfunction and mortality. Along with these health threats, DA toxicity is a major economic threat for shellfish and fish …


A Scoping Review Of Digital Health Interventions For Combating Covid-19 Misinformation And Disinformation, Joseph Krocker, Sahiti Myneni Mar 2023

A Scoping Review Of Digital Health Interventions For Combating Covid-19 Misinformation And Disinformation, Joseph Krocker, Sahiti Myneni

Faculty, Staff and Student Publications

OBJECTIVE: We provide a scoping review of Digital Health Interventions (DHIs) that mitigate COVID-19 misinformation and disinformation seeding and spread.

MATERIALS AND METHODS: We applied our search protocol to PubMed, PsychINFO, and Web of Science to screen 1666 articles. The 17 articles included in this paper are experimental and interventional studies that developed and tested public consumer-facing DHIs. We examined these DHIs to understand digital features, incorporation of theory, the role of healthcare professionals, end-user experience, and implementation issues.

RESULTS: The majority of studies (n = 11) used social media in DHIs, but there was a lack of platform-agnostic generalizability. …


A Mathematical Framework For Operational Fine Tunings, Lorenzo Catani, Matthew Leifer Mar 2023

A Mathematical Framework For Operational Fine Tunings, Lorenzo Catani, Matthew Leifer

Mathematics, Physics, and Computer Science Faculty Articles and Research

In the framework of ontological models, the inherently nonclassical features of quantum theory always seem to involve properties that are fine tuned, i.e. properties that hold at the operational level but break at the ontological level. Their appearance at the operational level is due to unexplained special choices of the ontological parameters, which is what we mean by a fine tuning. Famous examples of such features are contextuality and nonlocality. In this article, we develop a theory-independent mathematical framework for characterizing operational fine tunings. These are distinct from causal fine tunings – already introduced by Wood and Spekkens in [NJP,17 …


Lpa Guide To Environmental Hurdles, Sarah Everhart, Briana Hope Mar 2023

Lpa Guide To Environmental Hurdles, Sarah Everhart, Briana Hope

Purdue Road School

Compliance with the National Environmental Policy Act (NEPA) is a federal requirement when utilizing federal funding for transportation projects. Attendees will learn about environmental hurdles, common schedule challenges, that can be encountered in a project and how to best mange them. Specifically, Section 106 (cultural resources), T&E species, 4(f), Public Involvement, and Environmental Justice.


Design, Collaborate, Thrive: The Broad Ripple Avenue Project, Jessica Hawley, Emily Nelson, Ericka Miller Mar 2023

Design, Collaborate, Thrive: The Broad Ripple Avenue Project, Jessica Hawley, Emily Nelson, Ericka Miller

Purdue Road School

Broad Ripple Avenue (College Avenue to Winthrop Avenue) needed large-scale stormwater improvements. With the help of the Lochmueller Group and the Broad Ripple Village Association, Indianapolis DPW perceptively took this opportunity to also improve pedestrian facilities and regional multi-modal connectivity by combining multiple regional projects into one construction contract. This consolidation allowed for a cohesive public message through proactive public involvement. Presenters will share how consensus was built between invested parties through a successful public and private partnership.


Modelling Illiquid Stocks Using Quantum Stochastic Calculus, Will Hicks Mar 2023

Modelling Illiquid Stocks Using Quantum Stochastic Calculus, Will Hicks

Journal of Stochastic Analysis

No abstract provided.


Updated Constraints From The Effective Field Theory Analysis Of The Boss Power Spectrum On Early Dark Energy, T. Simon, P. Zhang, V. Poulin, Tristan L. Smith Mar 2023

Updated Constraints From The Effective Field Theory Analysis Of The Boss Power Spectrum On Early Dark Energy, T. Simon, P. Zhang, V. Poulin, Tristan L. Smith

Physics & Astronomy Faculty Works

Analyses of the full shape of the Baryon Oscillation Spectroscopic Survey (BOSS) DR12 power spectrum using the one-loop prediction from the effective field theory of large-scale structures (EFTBOSS) have led to new constraints on extensions to the Λ cold dark matter model, such as early dark energy (EDE), which has been suggested as a resolution to the “Hubble tension.” In this paper, we reassess the constraining power of the EFTBOSS on EDE in light of a correction to the normalization of BOSS window functions. Overall we find that constraints from EFTBOSS on EDE are weakened and represent a small change …


Remote Medical Diagnosis Via Infrared Thermography And Augmented Reality, Frederick M. Selkey Mar 2023

Remote Medical Diagnosis Via Infrared Thermography And Augmented Reality, Frederick M. Selkey

USF Tampa Graduate Theses and Dissertations

Fast, accurate, and non-invasive diagnostic techniques are required by the medical industry to increase the success of medical treatments and enhance the quality of patient care. Medical IRT has been demonstrated reasonably effective at diagnosing and monitoring several physiological conditions. Diversities in the human body, physical and psychological condition, measurement equipment, and environment all influence the sensitive readings obtained by passive IR measurement devices. New standards for medical IRT and fever screening have been demonstrated effective, but there is limited adherence to the guidelines [36]. Absolute temperature readings require regular calibration checks and can easily be thrown off by noise. …


Infinite-Dimensional Stochastic Transforms And Reproducing Kernel Hilbert Space, Myung-Sin Song, Palle Jorgensen, James Feng Tian Mar 2023

Infinite-Dimensional Stochastic Transforms And Reproducing Kernel Hilbert Space, Myung-Sin Song, Palle Jorgensen, James Feng Tian

SIUE Faculty Research, Scholarship, and Creative Activity

By way of concrete presentations, we construct two infinite-dimensional transforms at the crossroads of Gaussian fields and reproducing kernel Hilbert spaces (RKHS), thus leading to a new infinite-dimensional Fourier transform in a general setting of Gaussian processes. Our results serve to unify existing tools from infinite-dimensional analysis.


Ecohydrology, Cultural Perceptions, And Recovery Of Freshwater Wetlands In A Heavily Managed Urban Aquifer, Jessica Ashley Balerna Mar 2023

Ecohydrology, Cultural Perceptions, And Recovery Of Freshwater Wetlands In A Heavily Managed Urban Aquifer, Jessica Ashley Balerna

USF Tampa Graduate Theses and Dissertations

Freshwater wetlands provide essential ecosystem services that influence, and are influenced by, human perceptions and behaviors. I explore these feedbacks in the Tampa Bay region, which hosts numerous freshwater wetlands subjected to population increases, economic growth, and shifting management policies. These wetlands are embedded in urban and residential areas, where people can observe and respond to changes in wetland condition over time. I utilized long-term (1991–2018), high sample size (n=152) datasets to assess how wetland inundation responds to the interactive effects of climate variation and shifts in water conservation policies primarily related to cutbacks in groundwater extraction. As wetland ecosystem …


User-Centered Software Design: User Interface Redesign For Blockly–Electron, Artificial Intelligence Educational Software For Primary And Secondary Schools, Chenghong Cen, Guang Luo, Lujia Li, Yilin Liang, Kang Li, Tan Jiang, Qiang Xiong Mar 2023

User-Centered Software Design: User Interface Redesign For Blockly–Electron, Artificial Intelligence Educational Software For Primary And Secondary Schools, Chenghong Cen, Guang Luo, Lujia Li, Yilin Liang, Kang Li, Tan Jiang, Qiang Xiong

All Works

According to the 2021 and 2022 Horizon Report, AI is emerging in all areas of education, in various forms of educational aids with various applications, and is carving out a similarly ubiquitous presence across campuses and classrooms. This study explores a user-centered approach used in the design of the AI educational software by taking the redesign of the user interface of AI educational software Blockly–Electron as an example. Moreover, by analyzing the relationship between the four variables of software usability, the abstract usability is further certified so as to provide ideas for future improvements to the usability of AI educational …


Epidemic Highs And Lows: A Stochastic Diffusion Model For Active Cases, Luis F. Gordillo, Priscilla E. Greenwood, Dana Strong Mar 2023

Epidemic Highs And Lows: A Stochastic Diffusion Model For Active Cases, Luis F. Gordillo, Priscilla E. Greenwood, Dana Strong

Mathematics and Statistics Faculty Publications

We derive a stochastic epidemic model for the evolving density of infective individuals in a large population. Data shows main features of a typical epidemic consist of low periods interspersed without breaks of various intensities and duration. In our stochastic differential model, a novel reproductive term combines a factor expressing the recent notion of ‘attenuated Allee effect’ and a capacity factor is controlling the size of the process. Simulation of this model produces sample paths of the stochastic density of infectives, which behave much like long-time Covid-19 case data of recent years. Writing the process as a stochastic diffusion allows …


The Puzzle Of The Formation Of T8 Dwarf Ross 458c, Josefine Gaarn, Ben Burningham, Jacqueline K. Faherty, Channon Visscher, Mark S. Marley, Eileen C. Gonzales, Emily Calamari, Daniella Bardalez Gagliuffi, Roxana Lupu, Richard Freedman Mar 2023

The Puzzle Of The Formation Of T8 Dwarf Ross 458c, Josefine Gaarn, Ben Burningham, Jacqueline K. Faherty, Channon Visscher, Mark S. Marley, Eileen C. Gonzales, Emily Calamari, Daniella Bardalez Gagliuffi, Roxana Lupu, Richard Freedman

Faculty Work Comprehensive List

At the lowest masses, the distinction between brown dwarfs and giant exoplanets is often blurred and literature classifications rarely reflect the deuterium burning boundary. Atmospheric characterization may reveal the extent to which planetary formation pathways contribute to the population of very low mass brown dwarfs, by revealing whether their abundance distributions differ from those of the local field population or, in the case of companions, their primary stars. The T8 dwarf Ross 458c is a possible planetary-mass companion to a pair of M dwarfs, and previous work suggests that it is cloudy. We here present the results of the retrieval …


Chemically Induced Ferromagnetism Near Room Temperature In Single Crystal (Zn1−Xcrx)Te Half-Metal, J. Guo, A. Sarikhani, P. Ghosh, T. Heitmann, Yew San Hor, D. K. Singh Mar 2023

Chemically Induced Ferromagnetism Near Room Temperature In Single Crystal (Zn1−Xcrx)Te Half-Metal, J. Guo, A. Sarikhani, P. Ghosh, T. Heitmann, Yew San Hor, D. K. Singh

Physics Faculty Research & Creative Works

Magnetic Semiconductors Are at the Core of Recent Spintronics Research Endeavors. Chemically Doped II-VI Diluted Magnetic Semiconductors, such as (Zn1−xCrx)Te, Provide a Promising Platform in This Quest. However, a Detailed Knowledge of the Microscopic Nature of Magnetic Ground State is Necessary for Any Practical Application. Here, We Report on the Synergistic Study of (Zn1−xCrx)Te Single Crystals using Elastic Neutron Scattering Measurements and Density Functional Calculations. for the First Time, Our Research Unveils the Intrinsic Properties of Ferromagnetic State in a Macroscopic Specimen of (Zn0.8Cr0.2)Te. …


Impact Of F-D Kondo Cloud On Superconductivity Of Nickelates, Byungkyun Kang, Hyunsoo Kim, Qiang Zhu, Chul Hong Park Mar 2023

Impact Of F-D Kondo Cloud On Superconductivity Of Nickelates, Byungkyun Kang, Hyunsoo Kim, Qiang Zhu, Chul Hong Park

Physics Faculty Research & Creative Works

The Discovery of Superconducting Nickelates Reignited Hope for Elucidating the High-Tc Superconductivity Mechanism in Isostructural Cuprates. While the Superconducting Gap Opens Up on a Single Band of the Quasi-2D Fermi Surface in the Cuprates, the Nickelates Are Known to Have a 3D Nature of an Electronic Structure with a Multi-Band. This Raises a Serious Question About the Role of the 2D Nature for the High-Tc Superconductivity. Here, Employing GW + Dynamical Mean Field Theory (DMFT), We Report the Kondo Effect Driven by the Strong Correlation of Nd-4f and Ni-3d Electrons Emerging at Low Temperature. the Kondo Effect Modifies …


Comments For The Draft Final Butte Priority Soils Operable Unit, 2021 Unreclaimed Sites Sampling Ur-32 Site Evaluation Summary Report (December 16, 2022), Nikia Greene Mar 2023

Comments For The Draft Final Butte Priority Soils Operable Unit, 2021 Unreclaimed Sites Sampling Ur-32 Site Evaluation Summary Report (December 16, 2022), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Formal Conjugacy Growth In Graph Products I, Laura Ciobanu,, Susan Hermiller, Valentin Mercier Mar 2023

Formal Conjugacy Growth In Graph Products I, Laura Ciobanu,, Susan Hermiller, Valentin Mercier

Department of Mathematics: Faculty Publications

In this paper we give a recursive formula for the conjugacy growth series of a graph product in terms of the conjugacy growth and standard growth series of subgraph products. We also show that the conjugacy and standard growth rates in a graph product are equal provided that this property holds for each vertex group. All results are obtained for the standard generating set consisting of the union of generating sets of the vertex groups.


Powerful Radio Sources In The Southern Sky. I. Optical Identifications, Francesco Massaro, S. V. White, A. García-Pérez, A. Jimenez-Gallardo, A. Capetti, C. C. Cheung, W. R. Forman, C. Mazzucchelli, A. Paggi, Juan P. Madrid Mar 2023

Powerful Radio Sources In The Southern Sky. I. Optical Identifications, Francesco Massaro, S. V. White, A. García-Pérez, A. Jimenez-Gallardo, A. Capetti, C. C. Cheung, W. R. Forman, C. Mazzucchelli, A. Paggi, Juan P. Madrid

Physics & Astronomy Faculty Publications

Since the early sixties, our view of radio galaxies and quasars has been drastically shaped by discoveries made thanks to observations of radio sources listed in the Third Cambridge Catalog and its revised version (3CR). However, the largest fraction of data collected to date on 3CR sources was performed with relatively old instruments, rarely repeated and/or updated. Importantly, the 3CR contains only objects located in the Northern Hemisphere, thus having limited access to new and innovative astronomical facilities. To mitigate these limitations, we present a new catalog of powerful radio sources visible from the Southern Hemisphere, extracted from the GLEAM …


Powerpoint - Post-Planting Biodiversity Inventory, Center For Urban Resilience Mar 2023

Powerpoint - Post-Planting Biodiversity Inventory, Center For Urban Resilience

Module 10: Garden Ecology

No abstract provided.


Lesson Plan - Post-Planting Biodiversity Inventory, Center For Urban Resilience Mar 2023

Lesson Plan - Post-Planting Biodiversity Inventory, Center For Urban Resilience

Module 10: Garden Ecology

The purpose of this lesson is to conduct post-planting biodiversity inventories


Powerpoint - Attracting Pollinators, Center For Urban Resilience Mar 2023

Powerpoint - Attracting Pollinators, Center For Urban Resilience

Module 10: Garden Ecology

No abstract provided.


A Multiscale Linkage Between Riverscape And Fish Community Coevolution, Loren W. Stearman Mar 2023

A Multiscale Linkage Between Riverscape And Fish Community Coevolution, Loren W. Stearman

Dissertations

Sediment dynamics are foundational to stream and watershed morphology. Yet aquatic ecologists have relied on an oversimplified model of sediment dynamics characterizing sediments as agents of stream bed burial, and which fails to describe many types of aquatic habitat evolution. In this dissertation I employ both fluvial geomorphic and ecological frameworks to gain a deeper understanding of how sediment dynamics shape stream morphology and fish community evolution at multiple scales. Using a paired historic and contemporary approach, I analyzed geomorphic evolution and fish community change in the Bayou Pierre, Mississippi, from the 1980s to recent. Patterns of erosion due to …


The Role Of Eco-Tourism In The Environmental Protection Of The Mountains Of Pamirs, Furough Shakarmamadova Mar 2023

The Role Of Eco-Tourism In The Environmental Protection Of The Mountains Of Pamirs, Furough Shakarmamadova

USF Tampa Graduate Theses and Dissertations

ABSTRACTThe Central Asian nation of Tajikistan became independent in 1991. Tajikistan is a mountainous country with a great potential for tourism development. Nevertheless, there are limitations to the development of eco-tourism. I conducted my study to investigate the potential for developing eco-tourism in the eastern part of Tajikistan (the Pamirs). My overarching question was how does eco-tourism relate to the protection of the environment in Pamirs and can it improve the quality of people's lives? To answer this question, I focused on identifying the Best Management Practices (BMP) of eco-tourism in the region and what specific policies, if any, exist …


The Concentration Of Heavy Metals In Lincoln Nebraska's Tap Water, Evan Neuhaus Mar 2023

The Concentration Of Heavy Metals In Lincoln Nebraska's Tap Water, Evan Neuhaus

Honors Program: Senior Projects (Public)

Heavy metals are commonplace in nature, and are typically found in scarce quantities in all drinking sources. However, in high enough concentrations, they can have a myriad of negative health effects. This study seeks to find the concentrations of such metals in the Lincoln water supply utilizing the resources of the Water Center at the University of Nebraska at Lincoln. To test for discrete concentrations of trace elements, a method of using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) was implemented. ICP-MS uses plasma to ionize and atomize a sample which is then filtered into a series of cones into a …


A Review Of Literature On The Usage Of Low-Cost Sensors To Measure Particulate Matter, Amit U. Raysoni, Sai Deepak Pinakana, Esmeralda Mendez, Dawid K. Wladyka, Katarzyna Sepielak, Owen Temby Mar 2023

A Review Of Literature On The Usage Of Low-Cost Sensors To Measure Particulate Matter, Amit U. Raysoni, Sai Deepak Pinakana, Esmeralda Mendez, Dawid K. Wladyka, Katarzyna Sepielak, Owen Temby

School of Earth, Environmental, & Marine Sciences Faculty Publications

With advances in technological sciences, individuals can utilize low-cost air monitoring sensors to record air quality at homes, schools, and businesses. Air quality data collected from LCSs are publicly accessible, informing the community of the air quality around them. It is important to measure local and regional particulate matter (PM) concentrations to keep the public involved, especially those with specific health concerns, such as asthma, wheezing, and seasonal allergies. The number of studies involving the use of LCSs to evaluate PM levels is increasing with more manufacturers producing ‘easy to use’ LCSs targeting the public. The goal of this review …


Information About Historical Emissions Drives The Division Of Climate Change Mitigation Costs, Alessandro Del Ponte, Aidas Masiliūnas, Noah Lim Mar 2023

Information About Historical Emissions Drives The Division Of Climate Change Mitigation Costs, Alessandro Del Ponte, Aidas Masiliūnas, Noah Lim

Political Science Faculty Articles and Research

Despite worsening climate change, the international community still disagrees on how to divide the costs of mitigation between developing countries and developed countries, which emitted the bulk of historical carbon emissions. We study this issue using an economic experiment. Specifically, we test how information about historical emissions influences how much participants pay for climate change mitigation. In a four-player game, participants are assigned to lead two fictional countries as members of either the first or the second generation. The first generation produces wealth at the expense of greater carbon emissions. The second generation inherits their predecessor’s wealth and negotiates how …


Revised Draft Final Quarterly Operations And Maintenance Report Butte Treatment Lagoon System – Fourth Quarter 2021, Pioneer Technical Services, Inc. Mar 2023

Revised Draft Final Quarterly Operations And Maintenance Report Butte Treatment Lagoon System – Fourth Quarter 2021, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Permian Loess And Equatorial Glaciation In Eastern Equatorial Pangea: Perspectives On The Late Paleozoic Climate System From Sedimentary Basins In Southern France, Lily Pfeifer Mar 2023

Permian Loess And Equatorial Glaciation In Eastern Equatorial Pangea: Perspectives On The Late Paleozoic Climate System From Sedimentary Basins In Southern France, Lily Pfeifer

Sustainability Seminar Series

Carboniferous-Permian strata in basins within and proximal-to the Central Pangean Mountains (CPM) archive regional paleoequatorial climate during a unique interval in geological history (Pangean assembly, ice-age apex-and-collapse, megamonsoon inception). Whether these strata preserve a periglacial signal—or are periglacial in origin—remains debated. With a focus on upper Paleozoic (Upper Carboniferous – Permian) strata from the Lodève Basin, south-central Massif Central, France (eastern equatorial Pangea), this talk aims to address these questions through detailed sedimentology and a variety of analytical methods such as sediment geochemistry, detrital zircon geochronology, and cyclostratigraphy (time series analysis of magnetic susceptibility data). This work was supported by …


The Rise And Risks Of Internet Of Things, Diamond E. Hicks Mar 2023

The Rise And Risks Of Internet Of Things, Diamond E. Hicks

Cybersecurity Undergraduate Research Showcase

Internet of Things (IoT) has become a necessary part of our everyday lives. IoT is the network in which many different devices communicate, connect, and share data. Though how IoT got to where it is today, the issues it faced, and how it affects our lives today is not common knowledge. Despite the fact that IoT has advanced our technology to what it is today, people do not completely understand what it does.