Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Earth Sciences (16248)
- Geology (13576)
- Life Sciences (3500)
- Computer Sciences (3464)
- Environmental Sciences (2811)
-
- Engineering (2086)
- Chemistry (1794)
- Soil Science (1672)
- Plant Sciences (1632)
- Social and Behavioral Sciences (1459)
- Physics (1366)
- Mathematics (1340)
- Sustainability (1010)
- Artificial Intelligence and Robotics (827)
- Medicine and Health Sciences (812)
- Computer Engineering (780)
- Ecology and Evolutionary Biology (763)
- Oceanography and Atmospheric Sciences and Meteorology (696)
- Statistics and Probability (661)
- Environmental Education (519)
- Natural Resources and Conservation (493)
- Electrical and Computer Engineering (478)
- Urban Studies and Planning (470)
- Education (466)
- Environmental Monitoring (451)
- Numerical Analysis and Scientific Computing (442)
- Databases and Information Systems (438)
- Astrophysics and Astronomy (428)
- Natural Resources Management and Policy (416)
- Institution
-
- Western Michigan University (13205)
- University of Kentucky (1719)
- TÜBİTAK (651)
- University of Nebraska - Lincoln (649)
- Singapore Management University (573)
-
- Loyola Marymount University and Loyola Law School (445)
- Old Dominion University (373)
- China Simulation Federation (315)
- University of Texas Rio Grande Valley (251)
- City University of New York (CUNY) (219)
- Chulalongkorn University (215)
- University of South Carolina (213)
- China Coal Technology and Engineering Group (CCTEG) (204)
- Montana Tech Library (195)
- Western University (194)
- University of Texas at El Paso (187)
- Utah State University (183)
- Kennesaw State University (181)
- Missouri University of Science and Technology (181)
- University of South Florida (174)
- Louisiana State University (171)
- Portland State University (170)
- William & Mary (162)
- University of Arkansas, Fayetteville (153)
- Air Force Institute of Technology (149)
- Boise State University (143)
- Technological University Dublin (130)
- University of Nevada, Las Vegas (128)
- Claremont Colleges (111)
- The University of Maine (110)
- Keyword
-
- Machine learning (190)
- Deep learning (163)
- Climate change (135)
- COVID-19 (125)
- Machine Learning (120)
-
- Technical Reports (109)
- UTEP Computer Science Department (109)
- Deep Learning (76)
- Alfalfa (73)
- Sustainability (70)
- Priority Soils (65)
- Mathematics (61)
- Artificial intelligence (59)
- Computer Science (59)
- Chemistry (58)
- Simulation (54)
- Remote sensing (52)
- Water Quality (52)
- Cybersecurity (47)
- Lake (46)
- Nitrogen (46)
- Lakes Lay Monitoring Program (45)
- Optimization (43)
- Climate (42)
- Artificial Intelligence (41)
- Environment (41)
- Blockchain (40)
- Soil Sampling (40)
- Classification (39)
- Computer vision (39)
- Publication
-
- Legacy Scout Tickets from Pure Oil Company (11044)
- Thin Sections (2130)
- IGC Proceedings (1993-2023) (1502)
- Theses and Dissertations (537)
- Research Collection School Of Computing and Information Systems (513)
-
- Journal of System Simulation (315)
- Faculty Publications (283)
- Electronic Theses and Dissertations (262)
- Chulalongkorn University Theses and Dissertations (Chula ETD) (215)
- Coal Geology & Exploration (204)
- Turkish Journal of Electrical Engineering and Computer Sciences (202)
- Silver Bow Creek/Butte Area Superfund Site (194)
- Turkish Journal of Mathematics (186)
- Turkish Journal of Chemistry (167)
- United States Department of Agriculture Wildlife Services: Staff Publications (136)
- Honors Theses (122)
- Dissertations (115)
- USF Tampa Graduate Theses and Dissertations (112)
- Departmental Technical Reports (CS) (109)
- Graduate Theses and Dissertations (108)
- School of Natural Resources: Faculty Publications (106)
- Publications and Research (99)
- Doctoral Dissertations (96)
- Research outputs 2014 to 2021 (93)
- C-Day Computing Showcase (87)
- Electronic Thesis and Dissertation Repository (86)
- All Works (83)
- Articles (82)
- Physics Faculty Publications (81)
- Module 10: Garden Ecology (78)
- Publication Type
Articles 25171 - 25200 of 27884
Full-Text Articles in Physical Sciences and Mathematics
New Fail Operational Powernet Methods And Topologies For Automated Drivingwith Electric Vehicle, Ahmet Kiliç
New Fail Operational Powernet Methods And Topologies For Automated Drivingwith Electric Vehicle, Ahmet Kiliç
Turkish Journal of Electrical Engineering and Computer Sciences
Electric mobility and automation are important drivers for the future of the automotive industry. Thisrequires an extremely high level of safety, reliability, and efficiency of the energy supply in the vehicle compared to the stateof the art. It is not possible to fulfill these requirements with today's energy supply. To meet these requirements, a fault-operational, scalable powernet is needed. In this paper, a new methodology is presented for the development of powernetfor automated driving with electric vehicle. The new method enables the development of new fail operational powernettopologies, early detection of failures in powernet components and the fulfillment of automated …
The Combined Impact Of Continuous And Ordinal Auxiliary Variables On Missing Data Imputation In Sem, Salina Wu Whitaker
The Combined Impact Of Continuous And Ordinal Auxiliary Variables On Missing Data Imputation In Sem, Salina Wu Whitaker
Electronic Theses and Dissertations
“Modern” methods of addressing missing data using full-information maximum-likelihood (FIML) have become mainstays in SEM analyses. FIML allows the inclusion of auxiliary variables which carry information that is related to missing values and can reduce bias in parameter estimates. Past research has illustrated the benefits of auxiliary variable inclusion under different missingness conditions (MCAR and MNAR; e.g., Enders, 2008), missingness proportions (e.g., Collins et al., 2001), and although limited, missingness patterns (e.g., Yoo, 2009) in FIML analyses. While past studies have focused on the effects of either continuous or ordinal auxiliary variables, no study has included both types in their …
Application Of Optimal Control Theory To A Malaria Model, Cassidy Hill
Application Of Optimal Control Theory To A Malaria Model, Cassidy Hill
Murray State Theses and Dissertations
With malaria still prevalent and considered to be one of the most devastating infectious diseases in the world, many scientific efforts have been made to reduce its impact. One such effort includes the construction of mathematical models. Mathematical models can be used to analyze malaria transmission dynamics in the human population. The development of these models allows researchers to consider the control measures necessary to reduce the prevalence of malaria infection and possibly eliminate it.
The model presented in this thesis will provide the relationship of female Anopheles mosquitoes and insecticide treated paint acting as the control. A deterministic system …
Moving Ethnography: Infrastructuring Doubletakes And Switchbacks In Experimental Collaborative Methods, Aalok Khandekar, Brandon Costelloe-Kuehn, Lindsay Poirier, Alli Morgan, Alison Kenner, Kim Fortun, Mike Fortun
Moving Ethnography: Infrastructuring Doubletakes And Switchbacks In Experimental Collaborative Methods, Aalok Khandekar, Brandon Costelloe-Kuehn, Lindsay Poirier, Alli Morgan, Alison Kenner, Kim Fortun, Mike Fortun
Statistical and Data Sciences: Faculty Publications
In this article, we describe how our work at a particular nexus of STS, ethnography, and critical theory—informed by experimental sensibilities in both the arts and sciences—transformed as we built and learned to use collaborative workflows and supporting digital infrastructure. Responding to the call of this special issue to be “ethnographic about ethnography,” we describe what we have learned about our own methods and collaborative practices through building digital infrastructure to support them. Supporting and accounting for how experimental ethnographic projects move—through different points in a research workflow, with many switchbacks, with project designs constantly changing as the research develops—was …
Reading Datasets: Strategies For Interpreting The Politics Of Data Signification, Lindsay Poirier
Reading Datasets: Strategies For Interpreting The Politics Of Data Signification, Lindsay Poirier
Statistical and Data Sciences: Faculty Publications
All datasets emerge from and are enmeshed in power-laden semiotic systems. While emerging data ethics curriculum is supporting data science students in identifying data biases and their consequences, critical attention to the cultural histories and vested interests animating data semantics is needed to elucidate the assumptions and political commitments on which data rest, along with the externalities they produce. In this article, I introduce three modes of reading that can be engaged when studying datasets—a denotative reading (extrapolating the literal meaning of values in a dataset), a connotative reading (tracing the socio-political provenance of data semantics), and a deconstructive reading …
A Radial Basis Function Finite Difference Scheme For The Benjamin–Ono Equation, Benjamin F. Akers, Tony Liu, Jonah A. Reeger
A Radial Basis Function Finite Difference Scheme For The Benjamin–Ono Equation, Benjamin F. Akers, Tony Liu, Jonah A. Reeger
Faculty Publications
A radial basis function-finite differencing (RBF-FD) scheme was applied to the initial value problem of the Benjamin–Ono equation. The Benjamin–Ono equation has traveling wave solutions with algebraic decay and a nonlocal pseudo-differential operator, the Hilbert transform. When posed on ℝ, the former makes Fourier collocation a poor discretization choice; the latter is challenging for any local method. We develop an RBF-FD approximation of the Hilbert transform, and discuss the challenges of implementing this and other pseudo-differential operators on unstructured grids. Numerical examples, simulation costs, convergence rates, and generalizations of this method are all discussed.
Modeling And Simulation Techniques Used In High Strain Rate Projectile Impact, Derek G. Spear, Anthony N. Palazotto, Ryan A. Kemnitz
Modeling And Simulation Techniques Used In High Strain Rate Projectile Impact, Derek G. Spear, Anthony N. Palazotto, Ryan A. Kemnitz
Faculty Publications
A series of computational models and simulations were conducted for determining the dynamic responses of a solid metal projectile impacting a target under a prescribed high strain rate loading scenario in three-dimensional space. The focus of this study was placed on two different modeling techniques within finite element analysis available in the Abaqus software suite. The first analysis technique relied heavily on more traditional Lagrangian analysis methods utilizing a fixed mesh, while still taking advantage of the finite difference integration present under the explicit analysis approach. A symmetry reduced model using the Lagrangian coordinate system was also developed for comparison …
Extending Critical Infrastructure Element Longevity Using Constellation-Based Id Verification, Christopher M. Rondeau, Michael A. Temple, J. Addison Betances, Christine M. Schubert Kabban
Extending Critical Infrastructure Element Longevity Using Constellation-Based Id Verification, Christopher M. Rondeau, Michael A. Temple, J. Addison Betances, Christine M. Schubert Kabban
Faculty Publications
This work supports a technical cradle-to-grave protection strategy aimed at extending the useful lifespan of Critical Infrastructure (CI) elements. This is done by improving mid-life operational protection measures through integration of reliable physical (PHY) layer security mechanisms. The goal is to improve existing protection that is heavily reliant on higher-layer mechanisms that are commonly targeted by cyberattack. Relative to prior device ID discrimination works, results herein reinforce the exploitability of constellation-based PHY layer features and the ability for those features to be practically implemented to enhance CI security. Prior work is extended by formalizing a device ID verification process that …
Sea Ice Suppression Of Co2 Outgassing In The West Antarctic Peninsula: Implications For The Evolving Southern Ocean Carbon Sink, E.H. Shadwick, O.A. De Meo, S. Schroeter, M.C. Arroyo, D.G. Martinson, H. Ducklow
Sea Ice Suppression Of Co2 Outgassing In The West Antarctic Peninsula: Implications For The Evolving Southern Ocean Carbon Sink, E.H. Shadwick, O.A. De Meo, S. Schroeter, M.C. Arroyo, D.G. Martinson, H. Ducklow
VIMS Articles
The Southern Ocean plays an important role in the uptake of atmospheric CO2. In seasonally ice-covered regions, estimates of air-sea exchange remain uncertain in part because of a lack of observations outside the summer season. Here we present new estimates of air-sea CO2 flux in the West Antarctic Peninsula (WAP) from an autonomous mooring on the continental shelf. In summer, the WAP is a sink for atmospheric CO2 followed by a slow return to atmospheric equilibrium in autumn and winter. Outgassing is almost entirely suppressed by ice cover from June through October, resulting in a modest …
Sea Level-Driven Marsh Migration Results In Rapid Net Loss Of Carbon, Alexander J. Smith, Matthew L. Kirwan
Sea Level-Driven Marsh Migration Results In Rapid Net Loss Of Carbon, Alexander J. Smith, Matthew L. Kirwan
VIMS Articles
Sea level rise alters coastal carbon cycling by driving the rapid migration of coastal ecosystems, salinization of freshwater systems, and replacement of terrestrial forests with tidal wetlands. Wetland soils accumulate carbon (C) at faster rates than terrestrial soils, implying that sea level rise may lead to enhanced carbon accumulation. Here, we show that carbon stored in tree biomass greatly exceeds carbon stored in adjacent marsh soils so that marsh migration reduces total carbon stocks by 50% in less than 100years. Continued marsh soil carbon accumulation may eventually offset forest carbon loss, but we estimate that the time for replacement is …
Sea-Ice Microbial Communities In The Central Arctic Ocean: Limited Responses To Short-Term Pco(2) Perturbations, Anders Torstensson, Andrew R. Margolin, Gordon M. Showalter, Walker O. Smith Jr., Elizabeth H. Shadwick, Et Al
Sea-Ice Microbial Communities In The Central Arctic Ocean: Limited Responses To Short-Term Pco(2) Perturbations, Anders Torstensson, Andrew R. Margolin, Gordon M. Showalter, Walker O. Smith Jr., Elizabeth H. Shadwick, Et Al
VIMS Articles
The Arctic Ocean is more susceptible to ocean acidification than other marine environments due to its weaker buffering capacity, while its cold surface water with relatively low salinity promotes atmospheric CO 2 uptake. We studied how sea-ice microbial communities in the central Arctic Ocean may be affected by changes in the carbonate system expected as a consequence of ocean acidification. In a series of four experiments during late summer 2018 aboard the icebreaker Oden, we addressed microbial growth, production of dissolved organic carbon (DOC) and extra- cellular polymeric substances (EPS), photosynthetic activity, and bacterial assemblage structure as sea-ice microbial communities …
The Importance Of Organic Content To Fractal Floc Properties In Estuarine Surface Waters: Insights From Video, Lisst, And Pump Sampling, Kelsey A. Fall, Carl T. Friedrichs, Grace M. Massey, David G. Bowers, S. Jarrell Smith
The Importance Of Organic Content To Fractal Floc Properties In Estuarine Surface Waters: Insights From Video, Lisst, And Pump Sampling, Kelsey A. Fall, Carl T. Friedrichs, Grace M. Massey, David G. Bowers, S. Jarrell Smith
VIMS Articles
To better understand the nature of flocs of varying organic content in estuarine surface waters, Laser in situ Scattering and Transmissometry, video settling, and pump sampling were deployed in the York River estuary. A new in situ method was developed to simultaneously solve the floc fractal dimension (F), primary particle size (d p ), and primary particle density (ρ p ) by fitting a simple fractal model to observations of effective floc density (∆ρ) as a function of floc diameter (d f ), while ensuring that the integrated particle size distribution was consistent with measurements of bulk apparent density (ρ …
Coaxially Electrospun Fibrous Polymer Scaffolds For Tissue Regeneration And Drug Delivery, Matthew Michael Kleszynski
Coaxially Electrospun Fibrous Polymer Scaffolds For Tissue Regeneration And Drug Delivery, Matthew Michael Kleszynski
Graduate Research Theses & Dissertations
A biomaterial is a substance that is specifically engineered to take on a role within the body, either alone or in conjunction with other materials, with the purpose of influencing the body. Using Polymers as a biomaterial is an exciting field of study that has the potential to further our abilities to help those in need. Creating composite nanofibrous scaffolds composed of hydrophobic and hydrophilic polymers may outperform structures made of a single polymer in both in vitro and in vivo environments. Hydrophilicity governs the behavior of polymers in the body and has influence over the mechanical properties of the …
It's More Than What You Know: Conceptual Understanding And Spatial Skill Impact Student Sequence Stratigraphic Interpretation Skill, Bailey Zo Kreager
It's More Than What You Know: Conceptual Understanding And Spatial Skill Impact Student Sequence Stratigraphic Interpretation Skill, Bailey Zo Kreager
Graduate Research Theses & Dissertations
Sequence stratigraphic interpretation and 3-D spatial and spatiotemporal skills are considered important for the petroleum industry. Despite the importance of sequence stratigraphic interpretations for student careers, students struggle to understand basic concepts such as eustasy, relative sea-level and base-level. However, little is known about the relationship between spatial skill and sequence stratigraphy or the impact of instruction on sequence stratigraphic diagrams. This study begins to fill this gap by testing 1) whether spatial skills predict success on a sequence stratigraphic interpretation task, 2) the impact of Wheeler diagram instruction on student sequence stratigraphic interpretation skill, and 3) the impact of …
Spectral Analysis Of Cyclotron Radiation For Electron Beam Diagnostics, Brendan Leung
Spectral Analysis Of Cyclotron Radiation For Electron Beam Diagnostics, Brendan Leung
Graduate Research Theses & Dissertations
The spectral distribution of the cyclotron radiation emitted by non-ultra-relativistic electrons traveling through solenoidal lenses can be used to characterize ensemble-averaged properties of a beam. In this paper we explore the potential use of cyclotron radiation to measure the energy spread and transverse emittance of a beam while remaining unintrusive. We specifically discuss the relation between the spectral properties of cyclotron radiation and the beam statistical properties and perform first principle particle-in-cell simulation to validate our findings.
Midwestern U.S. Diurnal Temperature Range: Spatial And Temporal Trends From 1900-2018, Kelly Ann Swaney
Midwestern U.S. Diurnal Temperature Range: Spatial And Temporal Trends From 1900-2018, Kelly Ann Swaney
Graduate Research Theses & Dissertations
In the Corn Belt region of the United States, the twentieth century saw many land use changes as the land had been converted from the natural landscape to cropland. As the twentieth century progressed, numerous advancements occurred to increase the crop acreage, crop density, and amount of irrigated land. All of these changes contributed to higher rates of evapotranspiration, which put more moisture into the low levels of the atmosphere. This additional moisture played a role in changing the radiative fluxes and, as a result, the surface temperature. The Diurnal Temperature Range (DTR) is examined across the 1900 to 2018 …
Regular And In-Plane Skyrmions And Antiskyrmions From Boundary Instabilities, Shane Sandhoefner, Aldo Raeliarijaona, Rabindra Nepal, Dalton Snyder-Tinoco, Alexey Kovalev
Regular And In-Plane Skyrmions And Antiskyrmions From Boundary Instabilities, Shane Sandhoefner, Aldo Raeliarijaona, Rabindra Nepal, Dalton Snyder-Tinoco, Alexey Kovalev
Department of Physics and Astronomy: Faculty Publications
We formulate a theory of skyrmion and antiskyrmion generation using magnetic field and charge current pulses. We show that the topological defect can be created at an edge of a system with Dzyaloshinskii-Moriya interaction (DMI) as well as at a boundary between regions with different DMI. We consider both perpendicular and in-plane (also known as magnetic bimerons) versions of skyrmions and antiskyrmions. We show that the magnetization twist in the vicinity of an edge or a boundary is described by a kink solution, the presence of which can instigate the generation of topological defects. We study the collective excitations of …
The Zorich Transform And Generalizing Koenigs Linearization Theorem To Quasiregular Maps, Jacob A. Pratscher
The Zorich Transform And Generalizing Koenigs Linearization Theorem To Quasiregular Maps, Jacob A. Pratscher
Graduate Research Theses & Dissertations
This dissertation investigates the role that a new tool called the Zorich transform plays in quasiregular dynamics as a generalization of the logarithmic transform in complex dynamics. In particular we use the Zorich transform to construct analogues of the logarithmic spiral maps and interpolation between radial stretch maps. These constructions are then used to completely classify the orbit space of a quasiregular map. Also, conditions are given in which a quasiregular map $f:D\to\R^n$, where $D\subset\R^n$ is a domain, that is quasiconformal in a neighborhood of a geometrically attracting fixed point can be conjugated by a quasiconformal map to the asymptotic …
Module Basis Of Mixed Splines Over R[X], Philip G. Barnet
Module Basis Of Mixed Splines Over R[X], Philip G. Barnet
Senior Projects Spring 2021
A mixed spline is a piecewise polynomial with varying degrees of smoothness. In this project, we characterize a basis for mixed splines over subdivisions of the reals based on a characterization for integer spline bases. We use our new characterization to find bases for modules of splines with boundary conditions with particular differentiability requirements on their boundaries and compare various aspects of the two.
Possibilities & Potential Of Perennial Wheat: A Comparison Of Arbuscular Mycorrhizal Fungi Diversity And Abundance Between Winter Wheat And Kernza, Tess Noble Strohm
Possibilities & Potential Of Perennial Wheat: A Comparison Of Arbuscular Mycorrhizal Fungi Diversity And Abundance Between Winter Wheat And Kernza, Tess Noble Strohm
Senior Projects Spring 2021
In an effort to harness the benefits of perenniality on soil health, a perennial wheatgrass called Kernza (Thinopyrum intermedium) has been developed for commercial use at the Land Institute in Salina, Kansas. The effects of a cultivar of Kernza intended for the Hudson Valley, NY were examined in this study using Arbuscular Mycorrhizal fungi (AMF) as an indicator of soil health. AMF are an obligate symbiotic fungi known to provide physical and biological benefits to soil and plant systems. Fields containing one and four year old Kernza, as well as a field of an annual winter wheat were sampled to …
An Exploration On Condorcet-Approval-Range Voting Function With Limits, Jiangli Liu
An Exploration On Condorcet-Approval-Range Voting Function With Limits, Jiangli Liu
Senior Projects Spring 2021
In contrast to most social choice methods, which use ranked ballots, range voting is a well-known social choice method that offers the voters more choices in the form of an allowed range of possible scores. In this project, by allowing voters to give positive and negative scores, we hope to find a way that can explicitly show how voters disapprove, feel neutral, or approve of the alternatives instead of just giving ranking orders. Also, by applying a function to constrain the scores given in range voting, each voter will have the same influence when they give scores. After combining these …
Dimentia: Footnotes Of Time, Zachary Hait
Dimentia: Footnotes Of Time, Zachary Hait
Senior Projects Spring 2021
Time from the physicist's perspective is not inclusive of our lived experience of time; time from the philosopher's perspective is not mathematically engaged, in fact Henri Bergson asserted explicitly that time could not be mathematically engaged whatsoever. What follows is a mathematical engagement of time that is inclusive of our lived experiences, requiring the tools of storytelling.
Examining Co2 Model Observation Residuals Using Act-America Data, Tobias Gerken, Sha Feng, Klaus Keller, Thomas Lauvaux, Joshua P. Digangi, Yonhoon Choi, Bianca Baier, Kenneth J. Davis
Examining Co2 Model Observation Residuals Using Act-America Data, Tobias Gerken, Sha Feng, Klaus Keller, Thomas Lauvaux, Joshua P. Digangi, Yonhoon Choi, Bianca Baier, Kenneth J. Davis
Department of Integrated Science and Technology - Faculty Scholarship
An edited version of this paper was published by AGU. Copyright (2021) American Geophysical Union.
Please refer to:
Gerken, Tobias, Sha Feng, Klaus Keller, Thomas Lauvaux, Joshua P. DiGangi, Yonghoon Choi, Bianca Baier, and Kenneth J. Davis. Examining CO2 Model Observation Residuals Using ACT-America Data. Journal of Geophysical Research: Atmospheres 126, no.18 (2021): e2020JD034481. https://doi.org/10.1029/2020JD034481
Atmospheric CO2 inversion typically relies on the specification of prior flux and atmospheric model transport errors, which have large uncertainties. Here, we used ACT-America airborne observations to compare CO2 model-observation mismatch in the eastern U.S. and during four climatological seasons for the mesoscale …
Water Pollution And Environmental Concerns In Anesthesiology, Marc Kostrubiak, Christine Vatovec, Lesley-Ann Dupigny-Giroux, Donna Rizzo, William Paganelli, Mitchell Tsai
Water Pollution And Environmental Concerns In Anesthesiology, Marc Kostrubiak, Christine Vatovec, Lesley-Ann Dupigny-Giroux, Donna Rizzo, William Paganelli, Mitchell Tsai
Larner College of Medicine Fourth Year Advanced Integration Teaching/Scholarly Projects
Medications administered by anesthesia health care providers and subsequently excreted into the water supply system have the potential to affect ecological systems. Presently, there is a lack of literature examining which medications or metabolites enter the waste stream. Further, assessments of their potential environmental impact are often unknown or simply not considered as an externality of medical practice. Recent work examining the practice of anesthesiology has explored the solid waste stream, and the global warming potential of anesthetic gases, however the potential aquatic impacts remain unexplored. To address the potential for waterborne pollution and environmental toxicity, we extracted the total …
Applications Of The Match Model To Analyze Student Problem-Solving, Barbara Chiu
Applications Of The Match Model To Analyze Student Problem-Solving, Barbara Chiu
Honors Undergraduate Theses
Problem-solving has been recognized as a critical skill that students lack in the current education system, due to the use of algorithmic questions in tests that can be simply memorized and solved without conceptual understanding. Research on student problem-solving is needed to gain deeper insight into how students are approaching problems and where they lack proficiency so that instruction can help students gain a conceptual understanding of chemistry. The MAtCH (methods, analogies, theory, context, how) model was recently developed from expert explanations of their research and could be a valuable model to identify key components of student problem-solving. This project …
Sensitive And Quantitative Determination Of Short-Chain Fatty Acids In Human Serum Using Liquid Chromatography Mass Spectrometry, Armaghan Shafaei, Veronica Vamathevan, Jessica Pandohee, Nathan G. Lawler, David Broadhurst, Mary C. Boyce
Sensitive And Quantitative Determination Of Short-Chain Fatty Acids In Human Serum Using Liquid Chromatography Mass Spectrometry, Armaghan Shafaei, Veronica Vamathevan, Jessica Pandohee, Nathan G. Lawler, David Broadhurst, Mary C. Boyce
Research outputs 2014 to 2021
Short-chain fatty acids (SCFAs) are increasingly being monitored to elucidate the link between gut health and disease. These metabolites are routinely measured in faeces, but their determination in serum is more challenging due to their low concentrations. A method for the determination of eight SCFAs in serum is described here. High-resolution mass spectrometry and gas chromatography were used to identify the presence of isomeric interferences, which were then overcome through a combination of chromatographic separation and judicious choice of MS fragment ion. The SCFAs were derivatised to form 3-nitrophenylhydrazones before being separated on a reversed-phase column and then detected using …
Evidence Of Large Increases In Sedimentation Rates Due To Fish Trawling In Submarine Canyons Of The Gulf Of Palermo (Sw Mediterranean), Sarah Paradis, Claudio Lo Iacono, Pere Masqué, Pere Puig, Albert Palanques, Tommaso Russo, The Island Cruise Tem
Evidence Of Large Increases In Sedimentation Rates Due To Fish Trawling In Submarine Canyons Of The Gulf Of Palermo (Sw Mediterranean), Sarah Paradis, Claudio Lo Iacono, Pere Masqué, Pere Puig, Albert Palanques, Tommaso Russo, The Island Cruise Tem
Research outputs 2014 to 2021
Bottom trawling in submarine canyons can affect their natural sedimentation rates, but studies addressing this issue are still scarce. In the Gulf of Palermo (SW Mediterranean), bottom trawling occurs on the slope around Oreto, Arenella and Eleuterio canyons. Analyses of excess 210Pb concentrations and grain size fractions in sediment cores from their canyon axes revealed that sedimentation rates and silt contents increased in all canyons in the 1980s, due to the expansion of more powerful trawlers ( > 500 HP) to deeper fishing grounds. In Eleuterio and Arenella canyons, sedimentation rates increased by an order of magnitude (0.1-1.4 cm·yr-1), whereas they …
Searching For A Technology-Driven Acute Rheumatic Fever Test: The Start Study Protocol, Anna P. Ralph, Rachel Webb, Nicole J. Moreland, Reuben Mcgregor, Anthony Bosco, David Broadhurst, Timo Lassmann, Timothy C. Barnett, Rym Benothman, Jennifer Yan, Bo Remenyi, Julie Bennett, Nigel Wilson, Mark Mayo, Glenn Pearson, Tobias Kollmann, Jonathan R. Carapetis
Searching For A Technology-Driven Acute Rheumatic Fever Test: The Start Study Protocol, Anna P. Ralph, Rachel Webb, Nicole J. Moreland, Reuben Mcgregor, Anthony Bosco, David Broadhurst, Timo Lassmann, Timothy C. Barnett, Rym Benothman, Jennifer Yan, Bo Remenyi, Julie Bennett, Nigel Wilson, Mark Mayo, Glenn Pearson, Tobias Kollmann, Jonathan R. Carapetis
Research outputs 2014 to 2021
Introduction:
The absence of a diagnostic test for acute rheumatic fever (ARF) is a major impediment in managing this serious childhood condition. ARF is an autoimmune condition triggered by infection with group A Streptococcus. It is the precursor to rheumatic heart disease (RHD), a leading cause of health inequity and premature mortality for Indigenous peoples of Australia, New Zealand and internationally.
Methods and analysis:
Searching for a Technology-Driven Acute Rheumatic Fever Test' (START) is a biomarker discovery study that aims to detect and test a biomarker signature that distinguishes ARF cases from non-ARF, and use systems biology and serology to …
Proteome And Nutritional Shifts Observed In Hordein Double-Mutant Barley Lines, Utpal Bose, Angéla Juhász, Ronald Yu, Mahya Bahmani, Keren Byrne, Malcolm Blundell, James A. Broadbent, Crispin A. Howitt, Michelle L. Colgrave
Proteome And Nutritional Shifts Observed In Hordein Double-Mutant Barley Lines, Utpal Bose, Angéla Juhász, Ronald Yu, Mahya Bahmani, Keren Byrne, Malcolm Blundell, James A. Broadbent, Crispin A. Howitt, Michelle L. Colgrave
Research outputs 2014 to 2021
Lysine is the most limiting essential amino acid in cereals, and efforts have been made over the decades to improve the nutritional quality of these grains by limiting storage protein accumulation and increasing lysine content, while maintaining desired agronomic traits. The single lys3 mutation in barley has been shown to significantly increase lysine content but also reduces grain size. Herein, the regulatory effect of the lys3 mutation that controls storage protein accumulation as well as a plethora of critically important processes in cereal seeds was investigated in double mutant barley lines. This was enabled through the generation of three hordein …
Biometrics For Internet‐Of‐Things Security: A Review, Wencheng Yang, Song Wang, Nor Masri Sahri, Nickson M. Karie, Mohiuddin Ahmed, Craig Valli
Biometrics For Internet‐Of‐Things Security: A Review, Wencheng Yang, Song Wang, Nor Masri Sahri, Nickson M. Karie, Mohiuddin Ahmed, Craig Valli
Research outputs 2014 to 2021
The large number of Internet‐of‐Things (IoT) devices that need interaction between smart devices and consumers makes security critical to an IoT environment. Biometrics offers an interesting window of opportunity to improve the usability and security of IoT and can play a significant role in securing a wide range of emerging IoT devices to address security challenges. The purpose of this review is to provide a comprehensive survey on the current biometrics research in IoT security, especially focusing on two important aspects, authentication and encryption. Regarding authentication, contemporary biometric‐based authentication systems for IoT are discussed and classified based on different biometric …