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Articles 54391 - 54420 of 303043
Full-Text Articles in Physical Sciences and Mathematics
The Assessment Of Range Land Suitability From The Apiculture Aspect With Using Gis, Sh. Fadaee, Hossein Arzani, S. H. Kaboli
The Assessment Of Range Land Suitability From The Apiculture Aspect With Using Gis, Sh. Fadaee, Hossein Arzani, S. H. Kaboli
IGC Proceedings (1993-2023)
No abstract provided.
An Investigation Of Aromatic Plant In Hongyuan, Liangbin Zhou, Cuihua Ding
An Investigation Of Aromatic Plant In Hongyuan, Liangbin Zhou, Cuihua Ding
IGC Proceedings (1993-2023)
No abstract provided.
The Importance Of Waste Grassland For Potential Biomass And Bio‐Energy Production In China, Liangzheng Yan, Lin Zhang, Shiqiang Wang, Xiaoyu Chen, Lin Hu
The Importance Of Waste Grassland For Potential Biomass And Bio‐Energy Production In China, Liangzheng Yan, Lin Zhang, Shiqiang Wang, Xiaoyu Chen, Lin Hu
IGC Proceedings (1993-2023)
No abstract provided.
Study On The Supercritical Fluid Extraction Techniques Of Alfalfa Chlorophyll, Zhen Zhang, Zhizhong Cao, Hongli Wang
Study On The Supercritical Fluid Extraction Techniques Of Alfalfa Chlorophyll, Zhen Zhang, Zhizhong Cao, Hongli Wang
IGC Proceedings (1993-2023)
No abstract provided.
Skin Permeation Of Nickel, Cobalt And Chromium Salts In Ex Vivo Human Skin, Visualized Using Mass Spectrometry Imaging, Lina Hagvall, Masoumeh Dowlatshahi Pour, Jiabao Feng, Moshtak Karma, Yolanda Hedberg, Per Malmberg
Skin Permeation Of Nickel, Cobalt And Chromium Salts In Ex Vivo Human Skin, Visualized Using Mass Spectrometry Imaging, Lina Hagvall, Masoumeh Dowlatshahi Pour, Jiabao Feng, Moshtak Karma, Yolanda Hedberg, Per Malmberg
Chemistry Publications
Skin permeation and distribution of three of the most common skin sensitizers was investigated using a previ-ously developed animal-free exposure method combined with imaging mass spectrometry. Nickel, cobalt, and chromium (III) salts were dissolved in a buffer and exposed to human skin ex vivo, to be analyzed using time of flight secondary ion mass spectrometry (ToF-SIMS). Our findings demonstrate that metal haptens mainly accumulated in the stratum corneum, however all three metal sensitizers could also be detected in the epidermis. Cobalt and chromium (III) species penetrated into the epidermis to a larger extent than nickel species. The degree of penetration …
Predicting Human Behavior In Repeated Games With Attitude Vectors, Brian L. James
Predicting Human Behavior In Repeated Games With Attitude Vectors, Brian L. James
Theses and Dissertations
As Artificial Intelligence systems are used by human users at an increasing frequency, the need for such systems to understand and predict human behavior likewise increases. In my work, I have considered how to predict human behavior in repeated games. These repeated games can be applied as a foundation to many situations where a person may interact with an AI, In an attempt to create such a foundation, I have built a system using Attitude Vectors used in automata to predict actions based on prior actions and communications. These Attitude Vector Automata (AVA) can transform information from actions in one …
Decision Based Learning Course Design & Implementation For Introductory Statistics, Austin Heath
Decision Based Learning Course Design & Implementation For Introductory Statistics, Austin Heath
Undergraduate Honors Theses
Researchers in multiple industries (biomedicine, engineering, etc.) cite the selection of an appropriate statistical test as a common problem. Experts draw on a framework of conceptual and procedural knowledge to navigate when to use statistical methods. Students also struggle determining the correct statistical method to use for a given research question. This is because they lack the opportunity to practice recognizing a host of features in each research question that provide clues for experts as to which method is most appropriate. “Decision Based Learning” (DBL) is a teaching method designed to help teachers and students address this struggle. In this …
Attribution Of Responsibility After Failures Within Platform Ecosystems, Brian Dunn, Matthew L. Jensen, Ryan Ralston
Attribution Of Responsibility After Failures Within Platform Ecosystems, Brian Dunn, Matthew L. Jensen, Ryan Ralston
Data Analytics & Information Systems Faculty Publications
Increasingly, new hardware and software are embedded within ecosystems that include a platform and modules. Ideally these ecosystems perform reliably. However, if an ambiguously sourced failure occurs within one of these ecosystems, users are left to distribute blame across the various components of the ecosystem. The actual distribution of this blame, however, can be difficult to predict. This study investigates attribution of blame and discontinuance recommendations for ecosystem components after an ambiguously sourced failure. To extend platform ecosystems and attribution theory, we conducted a scenario-based experiment investigating the negative consequences of failure for platform and module components and the contingent …
Development Of Standard Operating Procedure With Modified Method To Quantify Benzene And Other Volatile Organic Compounds In Air Samples Using Gas Chromatography, Heather Hall
Electronic Theses and Dissertations
Stephen F. Austin State University (SFASU) Department of Environmental Science has recently invested in a gas chromatograph which can be used to analyze air samples for volatile organic compounds (VOCs) such as benzene, toluene, ethylbenzene, and xylenes (BTEX). The goal of this project was to develop a standard operating procedure (SOP) and modify the current method for the detection of VOCs associated with oil and gas drilling activity to accommodate the equipment and capabilities of SFASU Environmental Assessment Lab. This study aims to provide the framework for future research in air quality monitoring in the Eagle Ford Shale area. An …
A Usability Study Of Fido2 Roaming Software Tokens As A Password Replacement, Brian Rasmussen
A Usability Study Of Fido2 Roaming Software Tokens As A Password Replacement, Brian Rasmussen
Theses and Dissertations
The use of passwords for user authentication has significant shortcomings. As society becomes more dependent on the internet and web services, we need to find a replacement authentication method that users are willing to use. WebAuthn is one potential technology for password replacement. Recent studies have shown that users enjoy the usability of WebAuthn and hardware tokens as a password replacement but don't want to carry them around. Meanwhile, little to no research involves the use of software tokens. I carried out a user study of WebAuthn and roaming software tokens when used as a password replacement. We were able …
Interactions Between Humans, Crocodiles, And Hippos At Lake Kariba, Zimbabwe, Ivan Marowa, Joshua Matanzima, Tamuka Nhiwatiwa
Interactions Between Humans, Crocodiles, And Hippos At Lake Kariba, Zimbabwe, Ivan Marowa, Joshua Matanzima, Tamuka Nhiwatiwa
Human–Wildlife Interactions
Human–wildlife conflicts (HWCs) are on the increase due to shrinking space that results in increased competition for land, water, and other natural resources between humans and wildlife. Investigating the occurrence of HWCs is important in that the results can be used to formulate better management policies and strategies. In this paper, we describe the nature of HWCs emerging between humans and the Nile crocodile (Crocodylus niloticus) and between humans and the African hippopotamus (Hippopotamus amphibius; hippo) on Lake Kariba, Zimbabwe. Lake Kariba is the second largest manmade lake by volume in the world. Conflicts involving humans …
Ca Special Issue On Neural Network Approximation, Wolfgang Dahmen, Ronald A. Devore, Philipp Grohs
Ca Special Issue On Neural Network Approximation, Wolfgang Dahmen, Ronald A. Devore, Philipp Grohs
Faculty Publications
No abstract provided.
Final 2021 Residential Metals Abatement Program (Rmap) School Soil Sampling Field Sampling Plan (Fsp) Submittal #6 [Covering Small World Daycare], Pioneer Technical Services, Inc.
Final 2021 Residential Metals Abatement Program (Rmap) School Soil Sampling Field Sampling Plan (Fsp) Submittal #6 [Covering Small World Daycare], Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Free-Free Absorption In Hot Relativistic Flows: Application To Fast Radio Bursts, Esha Kundu, Bing Zhang
Free-Free Absorption In Hot Relativistic Flows: Application To Fast Radio Bursts, Esha Kundu, Bing Zhang
Physics & Astronomy Faculty Research
Magnetic flares create hot relativistic shocks outside the light cylinder radius of a magnetized star. Radio emission produced in such a shock or at a radius smaller than the shock undergoes free–free absorption while passing through the shocked medium. In this work, we demonstrate that this free–free absorption can lead to a negative drift in the frequency-time spectra. Whether it is related to the downward drift pattern observed in fast radio bursts (FRBs) is unclear. However, if the FRB down-drifting is due to this mechanism then it will be pronounced in those shocks that have isotropic kinetic energies ≳1044 erg. …
Immunoaffinity Monoliths For Multiplexed Extraction Of Preterm Birth Biomarkers From Human Blood Serum In 3d Printed Microfluidic Devices, Haifa Mohammad Almughamsi
Immunoaffinity Monoliths For Multiplexed Extraction Of Preterm Birth Biomarkers From Human Blood Serum In 3d Printed Microfluidic Devices, Haifa Mohammad Almughamsi
Theses and Dissertations
Preterm birth (PTB) results in over 15 million early births annually and is the leading cause of neonatal deaths. There are no clinical methods currently available to evaluate risk of PTB at early stages in pregnancy; thus, a rapid diagnostic to analyze PTB risk would be beneficial. Microfluidic immunoaffinity extraction is a promising platform for preparing complex samples, such as maternal serum with PTB risk biomarkers. 3D printed microfluidic devices have advantages over conventional microfluidic systems including simple fabrication and potential for iterative optimization to improve designs. In this work, I developed immunoaffinity monoliths in 3D printed microfluidic devices modified …
Compounding Hazards And Intersecting Vulnerabilities: Experiences And Responses To Extreme Heat During Covid-19, Olga V. Wilhelmi, Peter D. Howe, Mary H. Hayden, Cassandra R. O'Lenick
Compounding Hazards And Intersecting Vulnerabilities: Experiences And Responses To Extreme Heat During Covid-19, Olga V. Wilhelmi, Peter D. Howe, Mary H. Hayden, Cassandra R. O'Lenick
Environment and Society Faculty Publications
Extreme heat is a major threat to human health worldwide. The COVID-19 pandemic, with its complexity and global reach, created unprecedented challenges for public health and highlighted societal vulnerability to hazardous hot weather. In this study, we used data from a three-wave nationally representative survey of 3036 American adults to examine how the COVID-19 pandemic affected extreme heat vulnerability during the summer of 2020. We used mixed effects models to examine the roles of socio-demographic characteristics and pandemic-related factors in the distribution of negative heat effects and experiences across the United States. The survey findings show that over a quarter …
Molecular Dynamics Of Organometallic Systems, Ryan Wayne Carlsen
Molecular Dynamics Of Organometallic Systems, Ryan Wayne Carlsen
Theses and Dissertations
Metal-mediated organometallic reactions are critical for both catalytic and synthetic chemistry. Density functional theory (DFT) potential-energy calculations are routinely used with a transition-state theory type of approach to understand and predict the reaction mechanisms of organometallic reactions. However, these calculations do not include atomic momentum and thus ignore dynamic effects. Molecular dynamics is a powerful tool for elucidating mechanistic details of chemical reactions. In this dissertation, quasiclassical molecular dynamics studies reveal key mechanistic details about several fundamental organometallic reactions. Chapter 1 provides a brief overview of key molecular dynamics details. Chapters 2-4 provide details on for three classic organometallic reactions …
Final 2021 Residential Metals Abatement Program (Rmap) School Soil Sampling Field Sampling Plan (Fsp) Submittal #7 [Covering Former Hawthorne School And Aware Early Headstart], Pioneer Technical Services, Inc.
Final 2021 Residential Metals Abatement Program (Rmap) School Soil Sampling Field Sampling Plan (Fsp) Submittal #7 [Covering Former Hawthorne School And Aware Early Headstart], Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
A Dynamical Quantum Cheshire Cat Effect And Implications For Counterfactual Communication, Yakir Aharonov, Eliahu Cohen, Sandu Popescu
A Dynamical Quantum Cheshire Cat Effect And Implications For Counterfactual Communication, Yakir Aharonov, Eliahu Cohen, Sandu Popescu
Mathematics, Physics, and Computer Science Faculty Articles and Research
Here we report a type of dynamic effect that is at the core of the so called “counterfactual computation” and especially “counterfactual communication” quantum effects that have generated a lot of interest recently. The basic feature of these counterfactual setups is the fact that particles seem to be affected by actions that take place in locations where they never (more precisely, only with infinitesimally small probability) enter. Specifically, the communication/computation takes place without the quantum particles that are supposed to be the information carriers travelling through the communication channel or entering the logic gates of the computer. Here we show …
Anti‐Microbial Activities Of Root Extracts Of Cichorium Intybus L., Quanzhen Wang, Tianming Hu, Yamei Xu
Anti‐Microbial Activities Of Root Extracts Of Cichorium Intybus L., Quanzhen Wang, Tianming Hu, Yamei Xu
IGC Proceedings (1993-2023)
No abstract provided.
Promising Features Of The Legume Species Bituminaria Bituminosa As A Novel Forage Plant And For Pharmaceutical Purposes, L. Pecetti, A. Tava, E. Piano, E. Biazzi, S. Esposti, A. Ursino, B. Pintus
Promising Features Of The Legume Species Bituminaria Bituminosa As A Novel Forage Plant And For Pharmaceutical Purposes, L. Pecetti, A. Tava, E. Piano, E. Biazzi, S. Esposti, A. Ursino, B. Pintus
IGC Proceedings (1993-2023)
No abstract provided.
Diversity And Dynamics Of Soil Mesofauna Associated With Natural Grasslands In Central India, Sharmila Roy, Ruquaeya Bano
Diversity And Dynamics Of Soil Mesofauna Associated With Natural Grasslands In Central India, Sharmila Roy, Ruquaeya Bano
IGC Proceedings (1993-2023)
No abstract provided.
Pasture Management For Conservation Of Multipurpose Plants In Italian Mountains, Andrea Pardini, V. Pratesi, R. Tallarico
Pasture Management For Conservation Of Multipurpose Plants In Italian Mountains, Andrea Pardini, V. Pratesi, R. Tallarico
IGC Proceedings (1993-2023)
No abstract provided.
Participatory Identification Of Factors Inhibiting Integrated Management Of Livestock And Wildlife Production On Kenyan Rangelands, E. N. Muthiani, S. K. Karimi
Participatory Identification Of Factors Inhibiting Integrated Management Of Livestock And Wildlife Production On Kenyan Rangelands, E. N. Muthiani, S. K. Karimi
IGC Proceedings (1993-2023)
No abstract provided.
Biomass Production On Farms In The Eastern United States, Thomas C. Keene, S. Ray Smith, Michael D. Montross
Biomass Production On Farms In The Eastern United States, Thomas C. Keene, S. Ray Smith, Michael D. Montross
IGC Proceedings (1993-2023)
No abstract provided.
Radiation Effects On Space Solar Cells At Various Earth And Jupiter Orbital Altitudes, Naazneen Rana
Radiation Effects On Space Solar Cells At Various Earth And Jupiter Orbital Altitudes, Naazneen Rana
Discovery Undergraduate Interdisciplinary Research Internship
Solar cells are used as the primary power source for earth-orbiting satellites and as a primary/secondary power source for various missions within the solar system. However, high energy particles from the sun, planetary magnetospheres, and the galaxy can affect the performance and life expectancy of the space solar cell and associated power systems. As the interests for interplanetary travel and the exploration of planets within our solar system increase, the need to understand a device’s performance within a particular planet’s environment is necessary. Therefore, this study will analyze the performance of space solar cells, particularly the SolAero IMM-α, at various …
A Search For Tev Gamma-Ray Emission From Pulsar Tails By Veritas, Mary P. Kertzman, Et Al.
A Search For Tev Gamma-Ray Emission From Pulsar Tails By Veritas, Mary P. Kertzman, Et Al.
Physics & Astronomy Faculty publications
We report on the search for very-high-energy gamma-ray emission from the regions around three nearby supersonic pulsars (PSR B0355+54, PSR J0357+3205, and PSR J1740+1000) that exhibit long X-ray tails. To date there is no clear detection of TeV emission from any pulsar tail that is prominent in X-ray or radio. We provide upper limits on the TeV flux, and luminosity, and also compare these limits with other pulsar wind nebulae detected in X-rays and the tail emission model predictions. We find that at least one of the three tails is likely to be detected in observations that are a factor …
Collaborative Research: Deciphering The Role Of Extreme Rainstorms And Hydroclimatic Regime On Arid Escarpment Retreat And Sub-Cliff Slope Evolution, Joel Pederson
Funded Research Records
No abstract provided.
Catalytic Pyrolysis Of Lignin Model Compounds (Pyrocatechol, Guaiacol, Vanillic And Ferulic Acids) Over Nanoceria Catalyst For Biomass Conversion, Nataliia Nastasiienko, Tetiana Kulik, Borys Palianytsia, Julia Laskin, Tetiana Cherniavska, Mykola Kartel, Mats Larsson
Catalytic Pyrolysis Of Lignin Model Compounds (Pyrocatechol, Guaiacol, Vanillic And Ferulic Acids) Over Nanoceria Catalyst For Biomass Conversion, Nataliia Nastasiienko, Tetiana Kulik, Borys Palianytsia, Julia Laskin, Tetiana Cherniavska, Mykola Kartel, Mats Larsson
Department of Chemistry Faculty Publications
Understanding the mechanisms of thermal transformations of model lignin compounds (MLC) over nanoscale catalysts is important for improving the technologic processes occurring in the pyrolytic conversion of lignocellulose biomass into biofuels and value-added chemicals. Herein, we investigate catalytic pyrolysis of MLC (pyrocatechol (P), guaiacol (G), ferulic (FA), and vanillic acids (VA)) over nanoceria using FT-IR spectroscopy, temperature-programmed desorption mass spectrometry (TPD MS), and thermogravimetric analysis (DTG/DTA/TG). FT-IR spectroscopic studies indicate that the active groups of aromatic rings of P, G, VA, and FA as well as carboxylate groups of VA and FA are involved in the interaction with nanoceria surface. …
Seasonal Habitat Use Of Diamondback Terrapins (Malaclemys Terrapin) In North Inlet, Winyah Bay, Georgetown, South Carolina, Danielle Elizabeth Capella
Seasonal Habitat Use Of Diamondback Terrapins (Malaclemys Terrapin) In North Inlet, Winyah Bay, Georgetown, South Carolina, Danielle Elizabeth Capella
Electronic Theses and Dissertations
No abstract provided.