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Articles 68131 - 68160 of 302522
Full-Text Articles in Physical Sciences and Mathematics
An Introduction To Seshat: Global History Databank, Peter Turchin, Harvey Whitehouse, Pieter François, Daniel Hoyer, Abel Alves, John Baines, David Baker, Marta Bartkowiak, Jennifer Bates, James Bennett, Julye Bidmead, Peter Bol, Alessandro Ceccarelli, Kostis Christakis, David Christian, Alan Covey, Franco De Angelis, Timothy K. Earle, Neil R. Edwards, Gary Feinman, Stephanie Grohmann, Philip B. Holden, Árni Júlíusson, Andrey Korotayev, Axel Kristinsson, Jennifer Larson, Oren Litwin, Victor Mair, Joseph G. Manning, Patrick Manning, Arkadiusz Marciniak, Gregory Mcmahon, John Miksic, Juan Carlos Moreno Garcia, Ian Morris, Ruth Mostern, Daniel Mullins, Oluwole Oyebamiji, Peter Peregrine, Cameron Petrie, Johannes Preiser-Kapeller, Peter Rudiak-Gould, Paula Sabloff, Patrick Savage, Charles Spencer, Miriam Stark, Barend Ter Haar, Stefan Thurner, Vesna Wallace, Nina Witoszek, Liye Xie
An Introduction To Seshat: Global History Databank, Peter Turchin, Harvey Whitehouse, Pieter François, Daniel Hoyer, Abel Alves, John Baines, David Baker, Marta Bartkowiak, Jennifer Bates, James Bennett, Julye Bidmead, Peter Bol, Alessandro Ceccarelli, Kostis Christakis, David Christian, Alan Covey, Franco De Angelis, Timothy K. Earle, Neil R. Edwards, Gary Feinman, Stephanie Grohmann, Philip B. Holden, Árni Júlíusson, Andrey Korotayev, Axel Kristinsson, Jennifer Larson, Oren Litwin, Victor Mair, Joseph G. Manning, Patrick Manning, Arkadiusz Marciniak, Gregory Mcmahon, John Miksic, Juan Carlos Moreno Garcia, Ian Morris, Ruth Mostern, Daniel Mullins, Oluwole Oyebamiji, Peter Peregrine, Cameron Petrie, Johannes Preiser-Kapeller, Peter Rudiak-Gould, Paula Sabloff, Patrick Savage, Charles Spencer, Miriam Stark, Barend Ter Haar, Stefan Thurner, Vesna Wallace, Nina Witoszek, Liye Xie
Religious Studies Faculty Articles and Research
This article introduces the Seshat: Global History Databank, its potential, and its methodology. Seshat is a databank containing vast amounts of quantitative data buttressed by qualitative nuance for a large sample of historical and archaeological polities. The sample is global in scope and covers the period from the Neolithic Revolution to the Industrial Revolution. Seshat allows scholars to capture dynamic processes and to test theories about the co-evolution (or not) of social scale and complexity, agriculture, warfare, religion, and any number of such Big Questions. Seshat is rapidly becoming a massive resource for innovative cross-cultural and cross-disciplinary research. Seshat is …
Multimodal Data Fusion And Attack Detection In Recommender Systems, Mehmet Aktukmak
Multimodal Data Fusion And Attack Detection In Recommender Systems, Mehmet Aktukmak
USF Tampa Graduate Theses and Dissertations
The commercial platforms that use recommender systems can collect relevant information to produce useful recommendations to the platform users. However, these sources usually contain missing values, imbalanced and heterogeneous data, and noisy observations. Such characteristics render the process of exploiting the information nontrivial, as one should carefully address them during the data fusion process. In addition to the degenerative characteristics, some entries can be fake, i.e., they can be the outcomes of malicious intents to manipulate the system. These entries should be eliminated before incorporation to any recommendation task. Detecting such malicious attacks quickly and accurately and then mitigating them …
Genetic Variation At The Species And Population Levels In The Rocky Mountain Ridged Mussel (Gonidea Angulata) – Supplementary Material, James A. Walton, Karen E. Mock, Steven F. R. Brownlee, Jon H. Mageroy, Greg Wilson, Ian R. Walker
Genetic Variation At The Species And Population Levels In The Rocky Mountain Ridged Mussel (Gonidea Angulata) – Supplementary Material, James A. Walton, Karen E. Mock, Steven F. R. Brownlee, Jon H. Mageroy, Greg Wilson, Ian R. Walker
Browse all Datasets
Freshwater mussels in western North America are threatened by water diversions, climate change, loss of required host fish, and other factors, and have experienced marked decline in the past several decades. All four of the primary lineages (potentially species) of freshwater mussels in the western U.S. and Canada are widespread and have somewhat generalist host fish requirements. Of these lineages, perhaps the most poorly understood and of greatest conservation concern is Gonidea angulata (Rocky Mountain ridged mussel). Gonidea is a monotypic genus occurring only in the western continental U.S. and southern Canada. Here we describe the patterns of genetic variation …
Using Indigenous Research Frameworks In The Multiple Contexts Of Research, Teaching, Mentoring, And Leading, Darryl Reano
Using Indigenous Research Frameworks In The Multiple Contexts Of Research, Teaching, Mentoring, And Leading, Darryl Reano
The Qualitative Report
Indigenous research frameworks can be used to effectively engage Indigenous communities and students in Western modern science through transparent and respectful communication. Currently, much of the academic research taking place within Indigenous communities marginalizes Indigenous Knowledge, does not promote long-term accountability to Indigenous communities and their relations, and withholds respect for the spiritual values that many Indigenous communities embrace. Indigenous research frameworks address these concerns within the academic research process by promoting values such as: relationality, multilogicality, and the centralization of Indigenous perspectives. Indigenous research frameworks provide a framework that can be used in multiple contexts within higher education to …
Yield And Quality Of Italian Ryegrass As Affected By Supplemental Irrigation, M. E. V. L. Lourenço, P. M. M. Palma, L. L. Silva, Vitor M. L. Massa
Yield And Quality Of Italian Ryegrass As Affected By Supplemental Irrigation, M. E. V. L. Lourenço, P. M. M. Palma, L. L. Silva, Vitor M. L. Massa
IGC Proceedings (1993-2023)
No abstract provided.
Distribution And Sustainable Utilization Of Water Resources In Inner Mongolia Pastoral Area, Kezhen Guo, Changfu Tong, Bing Xu
Distribution And Sustainable Utilization Of Water Resources In Inner Mongolia Pastoral Area, Kezhen Guo, Changfu Tong, Bing Xu
IGC Proceedings (1993-2023)
No abstract provided.
Analysis Of Infiltration And Surface Runoff In River Njoro Watershed Using A Rainfall Simulator, M. O. Okelo, J. O. Onyando, W. A. Shivoga, C. M. Gichaba, S. N. Miller
Analysis Of Infiltration And Surface Runoff In River Njoro Watershed Using A Rainfall Simulator, M. O. Okelo, J. O. Onyando, W. A. Shivoga, C. M. Gichaba, S. N. Miller
IGC Proceedings (1993-2023)
No abstract provided.
Grazing Management Processes And Strategies For Riparian Wetland Areas, Sandra Wyman, Sherman Swanson
Grazing Management Processes And Strategies For Riparian Wetland Areas, Sandra Wyman, Sherman Swanson
IGC Proceedings (1993-2023)
No abstract provided.
The Surface Water And Soil Quality By The Year‐Long Staying Management In Jeseniky Region, Marie Svozilova, J. Rzonca, P. Varekova
The Surface Water And Soil Quality By The Year‐Long Staying Management In Jeseniky Region, Marie Svozilova, J. Rzonca, P. Varekova
IGC Proceedings (1993-2023)
No abstract provided.
S3e8: What’S So Cool About Cold-Water Corals?, Ron Lisnet, Rhian Waller
S3e8: What’S So Cool About Cold-Water Corals?, Ron Lisnet, Rhian Waller
The Maine Question
When people think of coral reefs, they might imagine snorkeling in warm Caribbean waters. But corals also live in the Gulf of Maine and in some of the most extreme environments on Earth, including the Arctic and Antarctic.
Rhian Waller, associate professor of marine sciences and a National Geographic Explorer, dives deep in near-freezing water around the world to learn about what she calls the rainforests of the ocean. She examines how climate change, fishing and oil exploration affect their ecology and reproduction. And she studies the effects that their altered life cycle might have on the marine ecosystem and …
The Restrictive Deterrent Effect Of Warning Messages Sent To Active Romance Fraudsters: An Experimental Approach, Fangzhou Wang, C. Jordan Howell, David Maimon, Scott Jacques
The Restrictive Deterrent Effect Of Warning Messages Sent To Active Romance Fraudsters: An Experimental Approach, Fangzhou Wang, C. Jordan Howell, David Maimon, Scott Jacques
EBCS Articles
Victims of romance fraud experience both a financial and emotional burden. Although multiple studies have offered insight into the correlates of perpetration and victimization, no known study has examined if, and how, romance fraud can be curtailed. The current study uses a randomized experimental design to test the restrictive deterrent effect of warning messages sent to romance fraudsters via email. We find that active romance fraudsters who receive a deterrence message, instead of non-deterrence messages, respond at a lower rate; and, among those who respond, use fewer words and have a lower probability of seeking reply without denying wrongdoing. The …
Trophic Structure And Sources Of Variation Influencing The Stable Isotope Signatures Of Meso- And Bathypelagic Micronekton Fishes, Travis M. Richards, Tracey Sutton, R. J.David Wells
Trophic Structure And Sources Of Variation Influencing The Stable Isotope Signatures Of Meso- And Bathypelagic Micronekton Fishes, Travis M. Richards, Tracey Sutton, R. J.David Wells
Marine & Environmental Sciences Faculty Articles
To better understand spatiotemporal variation in the trophic structure of deep-pelagic species, we examined the isotope values of particulate organic matter (POM) (isotopic baseline) and seven deep-pelagic fishes with similar diet compositions but contrasting vertical distributions across mesoscale features in the Gulf of Mexico using stable isotope and amino acid compound-specific isotope analyses. Species examined included four migratory (Benthosema suborbitale, Lepidophanes guentheri, Melamphaes simus, Sigmops elongatus) and three non-migratory zooplanktivorous fishes (Argyropelecus hemigymnus, Cyclothone obscura, Sternoptyx pseudobscura). Isotopic values of POM increased with depth, with meso- and bathypelagic samples characterized by higher δ C and δ N values relative to …
Detection Of Uncompensated Magnetization At The Interface Of An Epitaxial Antiferromagnetic Insulator, Pavel N. Lapa, Min Han Lee, Igor V. Roshchin, Kirill Belashchenko, Ivan K. Schuller
Detection Of Uncompensated Magnetization At The Interface Of An Epitaxial Antiferromagnetic Insulator, Pavel N. Lapa, Min Han Lee, Igor V. Roshchin, Kirill Belashchenko, Ivan K. Schuller
Kirill Belashchenko Publications
We have probed directly the temperature and magnetic field dependence of pinned uncompensated magnetization at the interface of antiferromagnetic FeF2 with Cu, using FeF2-Cu-Co spin valves. Electrons polarized by the Co layer are scattered by the pinned uncompensated moments at the FeF2-Cu interface giving rise to giant magnetoresistance. We determined the direction and magnitude of the pinned uncompensated magnetization at different magnetic fields and temperatures using the angular dependencies of resistance. The strong FeF2 anisotropy pins the uncompensated magnetization along the easy axis independent of the cooling field orientation. Most interestingly, magnetic fields as …
Spincoating Epitaxial Films, Jay A. Switzer
Spincoating Epitaxial Films, Jay A. Switzer
Chemistry Faculty Research & Creative Works
A process for forming an epitaxial film comprising spinning a substrate having an ordered crystal structure ; heating the substrate during spinning to a temperature between 70° C. and 150° C .; dripping epitaxial film precursor solution onto the spinning substrate , where the precursor solution comprises inorganic film precursor material in a solvent ; and continuing the heating and spinning to remove the solvent and epitaxially grow the epitaxial film on the substrate .
Improving The Robustness Of The Advanced Ligo Detectors To Earthquakes, Eyal Schwartz, A. Pele, J. Warner, B. Lantz, Joseph Betzwieser, K. L. Dooley, S. Biscans, K. E. Ramirez
Improving The Robustness Of The Advanced Ligo Detectors To Earthquakes, Eyal Schwartz, A. Pele, J. Warner, B. Lantz, Joseph Betzwieser, K. L. Dooley, S. Biscans, K. E. Ramirez
Physics and Astronomy Faculty Publications and Presentations
Teleseismic, or distant, earthquakes regularly disrupt the operation of ground–based gravitational wave detectors such as Advanced LIGO. Here, we present EQ mode, a new global control scheme, consisting of an automated sequence of optimized control filters that reduces and coordinates the motion of the seismic isolation platforms during earthquakes. This, in turn, suppresses the differential motion of the interferometer arms with respect to one another, resulting in a reduction of DARM signal at frequencies below 100 mHz. Our method greatly improved the interferometers' capability to remain operational during earthquakes, with ground velocities up to 3.9 μm s−1 rms …
The Evolution Of A Circumplanetary Disc With A Dead Zone, Cheng Chen, Chao Chin Yang, Rebecca G. Martin, Zhaohuan Zhu
The Evolution Of A Circumplanetary Disc With A Dead Zone, Cheng Chen, Chao Chin Yang, Rebecca G. Martin, Zhaohuan Zhu
Physics & Astronomy Faculty Research
© 2021 Oxford University Press. All rights reserved. We investigate whether the regular Galilean satellites could have formed in the dead zone of a circumplanetary disc. A dead zone is a region of weak turbulence in which the magnetorotational instability is suppressed, potentially an ideal environment for satellite formation. With the grid-based hydrodynamic code FARGO3D, we examine the evolution of a circumplanetary disc model with a dead zone. Material accumulates in the dead zone of the disc leading to a higher total mass and but a similar temperature profile compared to a fully turbulent disc model. The tidal torque increases …
Effect Of Artificial Grassland On Soil And Water Conservation In Beijing, T. J. Sun, J. Y. Wu, W. J. Teng
Effect Of Artificial Grassland On Soil And Water Conservation In Beijing, T. J. Sun, J. Y. Wu, W. J. Teng
IGC Proceedings (1993-2023)
No abstract provided.
Dynamics Of Post‐Wildfire Wind Erosion Of Soil In Semiarid Rangelands, Idaho, Usa, Joel Sankey, Matthew Germino, Nancy Glenn
Dynamics Of Post‐Wildfire Wind Erosion Of Soil In Semiarid Rangelands, Idaho, Usa, Joel Sankey, Matthew Germino, Nancy Glenn
IGC Proceedings (1993-2023)
No abstract provided.
Investigation Of Effects Of Water Spreading On Improvement Of Iran's Rangelands, A. Salajeghe, B. Farokhzadeh, M. Souri
Investigation Of Effects Of Water Spreading On Improvement Of Iran's Rangelands, A. Salajeghe, B. Farokhzadeh, M. Souri
IGC Proceedings (1993-2023)
No abstract provided.
Water Quality In Terms Of Metals During Flooding In Two Ecosystems Of The Conchos Watershed, Mexico: Rangeland‐Forest And Urban Areas, H. Rubio, J. Jiménez, K. Wood, M. Gutierrez
Water Quality In Terms Of Metals During Flooding In Two Ecosystems Of The Conchos Watershed, Mexico: Rangeland‐Forest And Urban Areas, H. Rubio, J. Jiménez, K. Wood, M. Gutierrez
IGC Proceedings (1993-2023)
No abstract provided.
Modelling Deficit Irrigation Strategies For Dairy Regions Of Australia, Richard P. Rawnsley, Brendan R. Cullen, Lydia R. Turner, Karen Christie
Modelling Deficit Irrigation Strategies For Dairy Regions Of Australia, Richard P. Rawnsley, Brendan R. Cullen, Lydia R. Turner, Karen Christie
IGC Proceedings (1993-2023)
No abstract provided.
Supporting Our Struggling Students: Details Of A Hybrid Mathematics Summer Bridge Program, Anita White, Patrick Davis, Marti Shirley
Supporting Our Struggling Students: Details Of A Hybrid Mathematics Summer Bridge Program, Anita White, Patrick Davis, Marti Shirley
Faculty Publications & Research
It goes without saying that the schools in the consortium are used to dealing with gifted and talented students. However with such high-caliber students, we also have high expectations. What resources do we offer to the students who struggle at our institutions? This presentation will detail the setup and results of EXCEL2 - a summer bridge program offered at the Illinois Mathematics & Science Academy to help students who were unable to meet course expectations. The program operated through a hybrid online/in-person model - with instruction primarily given through video conferencing but coupled with an on-campus experience.
Implementation And Sustainment Of A Statewide Telemedicine Diabetic Retinopathy Screening Network For Federally Designated Safety-Net Clinics, Ana Bastos De Carvalho, S. Lee Ware, Feitong Lei, Heather M. Bush, Robert Sprang, Eric B. Higgins
Implementation And Sustainment Of A Statewide Telemedicine Diabetic Retinopathy Screening Network For Federally Designated Safety-Net Clinics, Ana Bastos De Carvalho, S. Lee Ware, Feitong Lei, Heather M. Bush, Robert Sprang, Eric B. Higgins
Ophthalmology and Visual Science Faculty Publications
CONTEXT: Diabetic retinopathy (DR) is the leading cause of incident blindness among working-age adults in the United States. Federally designated safety-net clinics (FDSC) often serve as point-of-contact for patients least likely to receive recommended DR screenings, creating opportunity for targeted interventions to increase screening access and compliance.
STUDY DESIGN AND METHODS: With such a goal, we implemented and assessed the longitudinal performance of an FDSC-based telemedicine DR screening (TDRS) network of 22 clinical sites providing nonmydriatic fundus photography with remote interpretation and reporting. Retrospective analysis of patient encounters between February 2014 and January 2019 was performed to assess rates of …
Potential Effect Of Bio-Surfactants On Sea Spray Generation In Tropical Cyclone Conditions, Breanna L. Vanderplow, Alexander Soloviev, Cayla W. Dean, Brian K. Haus, Roger Lukas, Muhammad Sami, Isaac Ginis
Potential Effect Of Bio-Surfactants On Sea Spray Generation In Tropical Cyclone Conditions, Breanna L. Vanderplow, Alexander Soloviev, Cayla W. Dean, Brian K. Haus, Roger Lukas, Muhammad Sami, Isaac Ginis
Marine & Environmental Sciences Faculty Articles
Despite significant improvement in computational and observational capabilities, predicting intensity and intensification of major tropical cyclones remains a challenge. In 2017 Hurricane Maria intensified to a Category 5 storm within 24 h, devastating Puerto Rico. In 2019 Hurricane Dorian, predicted to remain tropical storm, unexpectedly intensified into a Category 5 storm and destroyed the Bahamas. The official forecast and computer models were unable to predict rapid intensification of these storms. One possible reason for this is that key physics, including microscale processes at the air-sea interface, are poorly understood and parameterized in existing forecast models. Here we show that surfactants …
West Chester's Energy Future, Will Williams
West Chester's Energy Future, Will Williams
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Unifying Security Policy Enforcement: Theory And Practice, Shamaria Engram
Unifying Security Policy Enforcement: Theory And Practice, Shamaria Engram
USF Tampa Graduate Theses and Dissertations
Security policies stipulate restrictions on the behaviors of systems to prevent themfrom behaving in harmful ways. One way to ensure that systems satisfy the constraints of a security policy is through the use of security enforcement mechanisms. To understand the fundamental limitations of such mechanisms, formal methods are employed to prove properties and reason about their behaviors. The particular formalism employed, however, typically depends on the time at which a mechanism operates.
Mechanisms operating before a program's execution are static mechanisms, and mechanisms operating during a program's execution are dynamic mechanisms. Static mechanisms are fundamentally limited in the types of …
Organic-Inorganic Halide Perovskite Nanocrystals And Solar Cells, Rui Guo
Organic-Inorganic Halide Perovskite Nanocrystals And Solar Cells, Rui Guo
FIU Electronic Theses and Dissertations
A great challenge facing humanity in the 21st century is finding inexhaustible and inexpensive energy sources to power the planet. Renewable energies are the best solutions because of their abundance, diversity, and pollution-free emission. Solar energy is the cleanest and most abundant renewable energy source available. In the continuing quest for efficient and low-cost solar cells, perovskite solar cells (PSCs) have emerged as a potential replacement for silicon solar cells. Since 2009, the record efficiencies of PSCs have been skyrocketing from 3.8 % to 25.2 % and are now approaching the theoretical limit. Along with the three-dimensional perovskites used …
Multifunctional Metal-Organic Frameworks (Mofs) For Applications In Sustainability, Gaurav Verma
Multifunctional Metal-Organic Frameworks (Mofs) For Applications In Sustainability, Gaurav Verma
USF Tampa Graduate Theses and Dissertations
Climate change, affordable and clean energy, and responsible consumption and production are some of the important goals to be achieved for sustainable development. The current technologies used to address these challenges are energy and resource intensive. Furthermore, there are various limitations related to cost, storage, scalability and safety.Adsorbent materials are seen as a promising alternative remediation system due to their low energy consumption and minimal chemical waste production. However, most of the traditional adsorbents, such as activated carbon and zeolites lack the structural tunability to have long-term effectiveness and their use is limited. As discussed in Chapter 1, metal organic-frameworks …
Always-On Quantum Error Tracking With Continuous Parity Measurements, Razieh Mohseninia, Jing Yang, Irfan Siddiqi, Andrew N. Jordan, Justin Dressel
Always-On Quantum Error Tracking With Continuous Parity Measurements, Razieh Mohseninia, Jing Yang, Irfan Siddiqi, Andrew N. Jordan, Justin Dressel
Mathematics, Physics, and Computer Science Faculty Articles and Research
We investigate quantum error correction using continuous parity measurements to correct bit-flip errors with the three-qubit code. Continuous monitoring of errors brings the benefit of a continuous stream of information, which facilitates passive error tracking in real time. It reduces overhead from the standard gate-based approach that periodically entangles and measures additional ancilla qubits. However, the noisy analog signals from continuous parity measurements mandate more complicated signal processing to interpret syndromes accurately. We analyze the performance of several practical filtering methods for continuous error correction and demonstrate that they are viable alternatives to the standard ancilla-based approach. As an optimal …
Digital Identity: A Human-Centered Risk Awareness Study, Toufic N. Chebib
Digital Identity: A Human-Centered Risk Awareness Study, Toufic N. Chebib
USF Tampa Graduate Theses and Dissertations
Cybersecurity threats and compromises have been at the epicenter of media attention; their risk and effect on people’s digital identity is something not to be taken lightly. Though cyber threats have affected a great number of people in all age groups, this study focuses on 55 to 75-year-olds, as this age group is close to retirement or already retired. Therefore, a notable compromise impacting their digital identity can have a major impact on their life.
To help guide this study, the following research question was formulated, “What are the risk perceptions of individuals, between the ages of 55 and 75 …