Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 43981 - 44010 of 294413

Full-Text Articles in Physical Sciences and Mathematics

Kinetic Analysis Of Glu115ala Cytosolic Human Malate Dehydrogenase Mutation Shows A Change In Activity On Non-Native Substrate Phenylpyruvate, Kailey Paar Apr 2023

Kinetic Analysis Of Glu115ala Cytosolic Human Malate Dehydrogenase Mutation Shows A Change In Activity On Non-Native Substrate Phenylpyruvate, Kailey Paar

Chemistry & Biochemistry Student Scholarship

The cytosolic human enzyme, malate dehydrogenase (MDH1), is believed to have a significant effect on the proliferation of cancerous cells. This enzyme oxidizes NADH to NAD+ as it converts oxaloacetate (OAA) to malate. This oxidation of NADH provides the needed NAD+ to cancer cells, which require NAD+ as they upregulate glycolysis in aerobic conditions. Targeting MDH1 can reveal new therapeutic treatments for cancer by preventing the conversion of OAA to malate and depleting NAD+ stores in cancer cells, which can be done by mutating residues in the enzyme and assessing the change in activity. Here we show the replacement of …


Sleigh Race Project, Admin Stem For Success Apr 2023

Sleigh Race Project, Admin Stem For Success

STEM for Success Showcase

Students use their knowledge of physics and design to build both a sleigh and a slope for the sleigh to travel on.


Lesson Plans In Astronomy, Ecology And Biology, Admin Stem For Success Apr 2023

Lesson Plans In Astronomy, Ecology And Biology, Admin Stem For Success

STEM for Success Showcase

This document contains various lesson plan ideas for concepts within the fields of biology, ecology, astronomy, and geology.


From Point Estimates To Predictive Distributions In Machine Learning Models - A Statistical Importance Sampling Framework, Giuseppina Carannante Apr 2023

From Point Estimates To Predictive Distributions In Machine Learning Models - A Statistical Importance Sampling Framework, Giuseppina Carannante

Theses and Dissertations

In this thesis, we leverage powerful statistical frameworks for optimal sequential estimation and tracking in non-linear and non-Gaussian dynamical models, which enjoy proven (asymptotic) optimality properties. Initially, we build upon our previous work, which employed first-order Taylor series approximation to propagate the first two predictive moments, to derive Bayesian encoder-decoder networks. This work introduced the notion of dense, pixel-level uncertainty map that is crucial in fields, such as autonomous vehicles and medical segmentation. We then extended the Bayesian framework to an ensembling scheme based on ensemble Kalman Filtering (EnKF). While EnKF represents the predictive distribution with an ensemble of draws, …


2023 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Organic Pollutant Surface Water Sampling Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc. Apr 2023

2023 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Organic Pollutant Surface Water Sampling Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Testing Pedagogical Approaches To Online Lecture: Effects Of Background Music And Interactive Video Series On Student Retention Of Prior Conception-Correcting Information On Climate Change, Roya Franseth Apr 2023

Testing Pedagogical Approaches To Online Lecture: Effects Of Background Music And Interactive Video Series On Student Retention Of Prior Conception-Correcting Information On Climate Change, Roya Franseth

Honors Projects

Climate change is a pervasive element in our modern lives, yet many harbor ideas about climate change and associated climate mechanisms that are misinformed or incorrect. Ideas like these – prior conceptions (ideas that people carry with them into learning experiences about a subject) – are studied in varying degrees across fields. The geosciences do not have a particularly robust collection of research on the subject of geoscience-specific prior conceptions. At the same time, due to the COVID-19 pandemic, alternatives to in-person lecture such as online lecture have become normalized. The original aim of this paper was to determine if …


Approval Letter For The Butte Priority Soils Operable Unit, Final 2022 Insufficiently Reclaimed Sites Quality Assurance Project Plan (Qapp) Corrective Action Report (February 22, 2023), Nikia Greene Apr 2023

Approval Letter For The Butte Priority Soils Operable Unit, Final 2022 Insufficiently Reclaimed Sites Quality Assurance Project Plan (Qapp) Corrective Action Report (February 22, 2023), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Final Butte Priority Soils Operable Unit, 2021 Insufficiently Reclaimed Sites Sampling Clark Mill Tailings (Bres No. 154) Site Evaluation Summary Report, Dated (February 22, 2023), Nikia Greene Apr 2023

Final Butte Priority Soils Operable Unit, 2021 Insufficiently Reclaimed Sites Sampling Clark Mill Tailings (Bres No. 154) Site Evaluation Summary Report, Dated (February 22, 2023), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Final Butte Priority Soils Operable Unit, 2021 Insufficiently Reclaimed Sites Sampling Colorado Dump (Bres No. 104) Site Evaluation Summary Report (February 21, 2023), Nikia Greene Apr 2023

Final Butte Priority Soils Operable Unit, 2021 Insufficiently Reclaimed Sites Sampling Colorado Dump (Bres No. 104) Site Evaluation Summary Report (February 21, 2023), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Approval Letter For: Final Butte Priority Soils Operable Unit, 2021 Unreclaimed Sites Sampling Ur-03 Site Evaluation Summary Report (February 7, 2023), Nikia Greene Apr 2023

Approval Letter For: Final Butte Priority Soils Operable Unit, 2021 Unreclaimed Sites Sampling Ur-03 Site Evaluation Summary Report (February 7, 2023), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Magnetic Slime, Admin Stem For Success Apr 2023

Magnetic Slime, Admin Stem For Success

STEM for Success Showcase

Students learn chemistry and physics by making magnetic slime.


Invisible Ink, Admin Stem For Success Apr 2023

Invisible Ink, Admin Stem For Success

STEM for Success Showcase

Students create invisible ink to hide and reveal a message using chemistry.


Skew Relative Hadamard Difference Set Groups, Andrew Haviland Apr 2023

Skew Relative Hadamard Difference Set Groups, Andrew Haviland

Theses and Dissertations

We study finite groups $G$ having a nontrivial subgroup $H$ and $D \subset G \setminus H$ such that (i) the multiset $\{ xy^{-1}:x,y \in D\}$ has every element that is not in $H$ occur the same number of times (such a $D$ is called a {\it relative difference set}); (ii) $G=D\cup D^{(-1)} \cup H$; (iii) $D \cap D^{(-1)} =\emptyset$. We show that $|H|=2$, that $H$ has to be normal, and that $G$ is a group with a single involution. We also show that $G$ cannot be abelian. We give examples of such groups, including certain dicyclic groups, by using results …


K-Long Identification Efficiency Of The Klm Detector In The Belle Ii Experiment Using Splot, Jackson Davis, Diptaparna Biswas, Swagato Banerjee Apr 2023

K-Long Identification Efficiency Of The Klm Detector In The Belle Ii Experiment Using Splot, Jackson Davis, Diptaparna Biswas, Swagato Banerjee

Undergraduate Research Events

Long-lived neutral kaon mesons (K^0_L) are identified by energy deposits in the KLM detector of the Belle II experiment. However, various other particles can also deposit energy in the KLM detector. A statistical method known as sP lot can be utilized to distinguish between the energy deposit patterns of K0 L vs other backgrounds. This technique, currently developed with Monte-Carlo events, allows for a more robust determination of K0 L identification efficiency in the KLM detector, which can eventually be applied on real data


Permian Trilobites And The Applicability Of The “Living Fossil” Concept To Extinct Clades, Melanie J. Hopkins, Peter Wagner, Katherine J. Jordan Apr 2023

Permian Trilobites And The Applicability Of The “Living Fossil” Concept To Extinct Clades, Melanie J. Hopkins, Peter Wagner, Katherine J. Jordan

Department of Earth and Atmospheric Sciences: Faculty Publications

Some taxa occupy our imaginations as “living fossils” because they were known from the fossil record before being discovered alive today. Other taxa are considered “living fossils” because modern relatives bear a strong morphological resemblance to fossil relatives, or because they occupy a contracted geographic range or have less diversity now than in the past, or because they represent phylogenetic diversity that requires conservation. A characterizing feature of living fossils–and thus an implicit assumption of all criteria–is that the “living fossil” of interest is extant. However, the general research questions that “living fossils” inspire–Why do rates of evolution vary across …


Approval For: Draft Final Fourth Quarter 2022, Operations & Maintenance Monitoring Report For The Rocker Timber Framing And Treating Plant Operable Unit; Dated January 10, 2023., Nikia Greene Apr 2023

Approval For: Draft Final Fourth Quarter 2022, Operations & Maintenance Monitoring Report For The Rocker Timber Framing And Treating Plant Operable Unit; Dated January 10, 2023., Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Haptic Systems: Trends And Lessons Learned For Haptics In Spacesuits, Mohammad Amin Kuhail, Jose Berengueres, Fatma Taher, Mariam Alkuwaiti, Sana Z. Khan Apr 2023

Haptic Systems: Trends And Lessons Learned For Haptics In Spacesuits, Mohammad Amin Kuhail, Jose Berengueres, Fatma Taher, Mariam Alkuwaiti, Sana Z. Khan

All Works

Haptic technology uses forces, vibrations, and movements to simulate a sense of touch. In the context of spacesuits, proposals to use haptic systems are scant despite evidence of their efficacy in other domains. Existing review studies have sought to summarize existing haptic system applications. Despite their contributions to the body of knowledge, existing studies have not assessed the applicability of existing haptic systems in spacesuit design to meet contemporary challenges. This study asks, “What can we learn from existing haptic technologies to create spacesuits?”. As such, we examine academic and commercial haptic systems to address this issue and draw insights …


The Compound Risk Of Heat And Covid-19 In New York City: Riskscapes, Physical And Social Factors, And Interventions, Janelle Knox-Hayes, Juan Camilo Osorio, Natasha Stamler, Maria Dombrov, Rose Winer, Mary Hannah Smith, Reginald Blake, Cynthia Rosenzweig Apr 2023

The Compound Risk Of Heat And Covid-19 In New York City: Riskscapes, Physical And Social Factors, And Interventions, Janelle Knox-Hayes, Juan Camilo Osorio, Natasha Stamler, Maria Dombrov, Rose Winer, Mary Hannah Smith, Reginald Blake, Cynthia Rosenzweig

Publications and Research

Climate change is disrupting the fundamental conditions of human life and exacerbating existing inequity by placing further burdens on communities that are already vulnerable. Risk exposure varies by where people live and work. In this article, we examine the spatial overlap of the compound risks of COVID-19 and extreme heat in New York City. We assess the relationship between socio-demographic and natural, built and social environmental characteristics, and the spatial correspondence of COVID-19 daily case rates across three pandemic waves. We use these data to create a compound risk index combining heat, COVID-19, density and social vulnerability. Our findings demonstrate …


Designing An Equity-Centered Framework And Crosswalk For Integrated Elementary Computer Science Curriculum And Instruction, Carla Strickland, Andrea Ramírez-Salgado, Lauren Weisberg, Latoya Chandler, Jeanne Di Domenico, Elizabeth M. Lehman, Maya Israel Apr 2023

Designing An Equity-Centered Framework And Crosswalk For Integrated Elementary Computer Science Curriculum And Instruction, Carla Strickland, Andrea Ramírez-Salgado, Lauren Weisberg, Latoya Chandler, Jeanne Di Domenico, Elizabeth M. Lehman, Maya Israel

Journal of Computer Science Integration

As computer science (CS) education becomes more prevalent in K-12 instruction, it is critical for educators, researchers, and curriculum developers to identify culturally responsive and pedagogically inclusive approaches that can increase participation, access, and feelings of belonging for students from historically marginalized communities. In response, we developed an equity-centered curricular framework and illustrative crosswalk that synchronizes three distinct pedagogical approaches: culturally responsive pedagogy (CRP), Universal Design for Learning (UDL), and project-based learning (PBL). We describe the framework’s theoretical underpinnings and explain how this framework informed the development of an integrated elementary science+CS curricular unit and provide examples of its implementation. …


A New Generalized Gamma-Weibull Distribution And Its Applications, Nihimat Iyebuhola Aleshinloye, Samuel Adewale Aderoju, Alfred Adewole Abiodun, Bako Lukmon Taiwo Apr 2023

A New Generalized Gamma-Weibull Distribution And Its Applications, Nihimat Iyebuhola Aleshinloye, Samuel Adewale Aderoju, Alfred Adewole Abiodun, Bako Lukmon Taiwo

Al-Bahir

In this paper, a New Generalized Gamma-Weibull (NGGW) distribution is developed by compounding Weibull and generalized gamma distribution. Some mathematical properties such as moments, Rényi entropy and order statistics are derived and discussed. The maximum likelihood estimation (MLE) method is used to estimate the model parameters. The proposed model is applied to two real-life datasets to illustrate its performance and flexibility as compared to some other competing distributions. The results obtained show that the new distribution fits each of the data better than the other competing distributions.


Magnetism Activity, Admin Stem For Success Apr 2023

Magnetism Activity, Admin Stem For Success

STEM for Success Showcase

This interactive activity teaches students about magnetism.


How Resilience Is Framed Matters For Governance Of Coastal Social-Ecological Systems, Sarah Clement, Javad Jozaei, Michael Mitchell, Craig R. Allen, Ahjond S. Garmestani Apr 2023

How Resilience Is Framed Matters For Governance Of Coastal Social-Ecological Systems, Sarah Clement, Javad Jozaei, Michael Mitchell, Craig R. Allen, Ahjond S. Garmestani

School of Natural Resources: Faculty Publications

Effective governance of social-ecological systems (SES) is an enduring challenge, especially in coastal environments where accelerating impacts of climate change are increasing pressure on already stressed systems. While resilience is often proposed as a suitable framing to re-orient governance and management, the literature includes many different, and sometimes conflicting, definitions and ideas that influence how the concept is applied, especially in coastal environments. This study combines discourse analysis of the coastal governance literature and key informant interviews in Tasmania, Australia, demonstrating inconsistencies and confusion in the way that resilience is framed in coastal governance research and practice. We find that …


Nail Steam Activity, Admin Stem For Success, Natalie Wilson Apr 2023

Nail Steam Activity, Admin Stem For Success, Natalie Wilson

STEM for Success Showcase

Activity where students use nails to practice concepts relating to center of gravity


Basketballs And Energy, Admin Stem For Success Apr 2023

Basketballs And Energy, Admin Stem For Success

STEM for Success Showcase

No abstract provided.


Sugar Water Density Activity, Admin Stem For Success Apr 2023

Sugar Water Density Activity, Admin Stem For Success

STEM for Success Showcase

In this activity students learn about density using sugar water. Attached is the activity's lesson plan and a teacher reflection on the activity.


Money And Energy, Admin Stem For Success, Natalie Wilson Apr 2023

Money And Energy, Admin Stem For Success, Natalie Wilson

STEM for Success Showcase

Money is related to physics concepts to teach students about work, potential energy and conservation of energy


Rubber Band Car Activity, Admin Stem For Success, Natalie Wilson Apr 2023

Rubber Band Car Activity, Admin Stem For Success, Natalie Wilson

STEM for Success Showcase

Student learn about forces and engineering by designing a car powered by rubber bands


Essays On Cybersecurity And Information Privacy, Moez Hamedani Farokhnia Apr 2023

Essays On Cybersecurity And Information Privacy, Moez Hamedani Farokhnia

USF Tampa Graduate Theses and Dissertations

This dissertation research focuses on two key aspects of cybersecurity research. Security safeguard allocation, and AI-powered tools for anomaly detection. The first dissertation essay (Chapter 1) proposes a novel framework for the allocation of security countermeasures in the presence of uncertainty using robust optimization technique. The second dissertation essay (Chapter 2) studies the impact of algorithmic bias on the practice of insider threat detection in Electronic Health Record Systems and proposes a mitigations strategy. The final dissertation essay (Chapter 3) investigates how the biases of anomaly detection algorithms, and the characteristics of ensemble methods relate to the ensembles’ accuracy and …


Multi-Technique Structural Analysis Of Zinc Carboxylates (Soaps), Molly Wagner, Roberta Pigliapochi, Valeria Di Tullio, Jaclyn Catalano, Nicholas Zumbulyadis, Silvia A. Centeno, Xiaoling Wang, Kuizhi Chen, Ivan Hung, Zhehong Gan, Michael R. Dworzak, Glenn P.A. Yap, Cecil Dybowski Apr 2023

Multi-Technique Structural Analysis Of Zinc Carboxylates (Soaps), Molly Wagner, Roberta Pigliapochi, Valeria Di Tullio, Jaclyn Catalano, Nicholas Zumbulyadis, Silvia A. Centeno, Xiaoling Wang, Kuizhi Chen, Ivan Hung, Zhehong Gan, Michael R. Dworzak, Glenn P.A. Yap, Cecil Dybowski

Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works

A series of medium- and long-chain zinc carboxylates (zinc octanoate, zinc nonanoate, zinc decanoate, zinc undecanoate, zinc dodecanoate, zinc pivalate, zinc stearate, zinc palmitate, zinc oleate, and zinc azelate) was analyzed by ultra-high-field 67Zn NMR spectroscopy up to 35.2 T, as well as 13C NMR and FTIR spectroscopy. We also report the single-crystal X-ray diffraction structures of zinc nonanoate, zinc decanoate, and zinc oleate—the first long-chain carboxylate single-crystals to be reported for zinc. The NMR and X-ray diffraction data suggest that the carboxylates exist in three distinct geometric groups, based on structural and spectroscopic parameters. The ssNMR results …


Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Butte Reclamation Evaluation System (Bres) Draft 2021 Corrective Action Plans For Reclaimed Sites (Dated November 2, 2022), Nikia Greene Apr 2023

Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Butte Reclamation Evaluation System (Bres) Draft 2021 Corrective Action Plans For Reclaimed Sites (Dated November 2, 2022), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.