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Articles 15301 - 15330 of 302421
Full-Text Articles in Physical Sciences and Mathematics
Investigating The Effect Of Medium Chain Triglycerides On The Elasticity Of Pulmonary Surfactant, Maksymilian Dziura, Stuart R. Castillo, Mitchell Dipasquale, Omotayo Gbadamosi, Piotr Zolnierczuk, Michihiro Nagao, Elizabeth G. Kelley, Drew Marquardt
Investigating The Effect Of Medium Chain Triglycerides On The Elasticity Of Pulmonary Surfactant, Maksymilian Dziura, Stuart R. Castillo, Mitchell Dipasquale, Omotayo Gbadamosi, Piotr Zolnierczuk, Michihiro Nagao, Elizabeth G. Kelley, Drew Marquardt
Chemistry and Biochemistry Publications
In recent years, vaping has increased in both popularity and ease of access. This has led to an outbreak of a relatively new condition known as e-cigarette/vaping-associated lung injury (EVALI). This injury can be caused by physical interactions between the pulmonary surfactant (PS) in the lungs and toxins typically found in vaping solutions, such as medium chain triglycerides (MCT). MCT has been largely used as a carrier agent within many cannabis products commercially available on the market. Pulmonary surfactant ensures proper respiration by maintaining low surface tensions and interface stability throughout each respiratory cycle. Therefore, any impediments to this system …
Magnetic Slime, Admin Stem For Success
Magnetic Slime, Admin Stem For Success
STEM for Success Showcase
Students learn chemistry and physics by making magnetic slime.
Earthquake Resistant Buildings, Admin Stem For Success
Earthquake Resistant Buildings, Admin Stem For Success
STEM for Success Showcase
Students learn about earthquakes and engineering by building a structure that can survive an earthquake.
Invisible Ink, Admin Stem For Success
Invisible Ink, Admin Stem For Success
STEM for Success Showcase
Students create invisible ink to hide and reveal a message using chemistry.
Goonie Shooters Activity, Admin Stem For Success
Goonie Shooters Activity, Admin Stem For Success
STEM for Success Showcase
Students are asked to design a "Goon Shooter" to launch "goons" as far as possible.
Lesson Plans In Astronomy, Ecology And Biology, Admin Stem For Success
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.
Candy Heart Experiment, Admin Stem For Success
Candy Heart Experiment, Admin Stem For Success
STEM for Success Showcase
Students practice the scientific process by running an experiment to discover how well candy hearts dissolve in different liquids.
Sleigh Race Project, Admin Stem For Success
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.
Permian Trilobites And The Applicability Of The “Living Fossil” Concept To Extinct Clades, Melanie J. Hopkins, Peter Wagner, Katherine J. Jordan
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 …
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
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 …
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 …
Science Club, Danielle Gibson, Krista Andersen
Science Club, Danielle Gibson, Krista Andersen
Honors Expanded Learning Clubs
Honors After School program for elementary age children to engage with scientific principles. Students performed hands-on experiments to explore various STEM fields. Each weekly lesson consisted of a different concept to be learned or explored by early elementary aged students.
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.
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.
Haptic Systems: Trends And Lessons Learned For Haptics In Spacesuits, Mohammad Amin Kuhail, Jose Berengueres, Fatma Taher, Mariam Alkuwaiti, Sana Z. Khan
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 …
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 …
Skew Relative Hadamard Difference Set Groups, Andrew Haviland
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 …
A New Generalized Gamma-Weibull Distribution And Its Applications, Nihimat Iyebuhola Aleshinloye, Samuel Adewale Aderoju, Alfred Adewole Abiodun, Bako Lukmon Taiwo
A New Generalized Gamma-Weibull Distribution And Its Applications, Nihimat Iyebuhola Aleshinloye, Samuel Adewale Aderoju, Alfred Adewole Abiodun, Bako Lukmon Taiwo
Al-Bahir Journal for Engineering and Pure Sciences
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.
How Resilience Is Framed Matters For Governance Of Coastal Social-Ecological Systems, Sarah Clement, Javad Jozaei, Michael Mitchell, Craig R. Allen, Ahjond S. Garmestani
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 …
Basketballs And Energy, Admin Stem For Success
Basketballs And Energy, Admin Stem For Success
STEM for Success Showcase
No abstract provided.
Nail Steam Activity, Admin Stem For Success, Natalie Wilson
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
Rubber Band Car Activity, Admin Stem For Success, Natalie Wilson
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
Money And Energy, Admin Stem For Success, Natalie Wilson
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
Magnetism Activity, Admin Stem For Success
Magnetism Activity, Admin Stem For Success
STEM for Success Showcase
This interactive activity teaches students about magnetism.
Sugar Water Density Activity, Admin Stem For Success
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.
Essays On Cybersecurity And Information Privacy, Moez Hamedani Farokhnia
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 …
Tailoring The Polyurethane Foam/Rgo/Batio3 Pressure Sensor For Human Activities, Mohamed Morsy
Tailoring The Polyurethane Foam/Rgo/Batio3 Pressure Sensor For Human Activities, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Conformational Comparison Of Urea And Thiourea Near The Ccsd(T) Complete Basis Set Limit, Kayleigh R. Barlow, Gregory S. Tschumper
Conformational Comparison Of Urea And Thiourea Near The Ccsd(T) Complete Basis Set Limit, Kayleigh R. Barlow, Gregory S. Tschumper
Chemistry Faculty Research & Creative Works
The global minima of urea and thiourea were characterized along with other low-lying stationary points. Each structure was optimized with the CCSD(T) method, and triple-ζ correlation consistent basis sets followed by harmonic vibrational frequency computations. Relative energies evaluated near the complete basis set limit with both canonical and explicitly correlated CCSD(T) techniques reveal several subtle but important details about both systems. These computations resolve a discrepancy by demonstrating that the electronic energy of the C2v second-order saddle point of urea lies at least 1.5 kcal mol−1 above the C2 global minimum regardless of whether the structures were optimized with MP2, …
Knowledge, Attitude, And Behavioral Intention About Oral Cancer Among Public Health Students In Southeast Georgia, Ravneet Kaur, Gulzar H. Shah
Knowledge, Attitude, And Behavioral Intention About Oral Cancer Among Public Health Students In Southeast Georgia, Ravneet Kaur, Gulzar H. Shah
Department of Biostatistics, Epidemiology, and Environmental Health Sciences Faculty Publications
Background: Oral cancer (OC) is a significant public health problem; however, the degree to which the future public health workforce is aware of this issue is not well researched. The purpose of this study is to explore the level of knowledge, attitudes, and behavioral intentions about OC among public health students.
Materials and Methods: A sequential exploratory mixed-method research design was employed for this study. Using quantitative and qualitative measures, a survey was administered to 129 public health students. Subsequently, to understand the quantitative findings, two follow-up focus groups were conducted with survey participants.
Results: We found …
Assessing The Impact Of A Csforall Research-Practice Partnership Using The Prosper Framework: A Case Study Of The Chicago Alliance For Equity In Computer Science (Cafécs), Erin Henrick, Steven Mcgee, Ronald I. Greenberg, Dale Reed, Don Yanek, Lucia Dettori, Haley Williamson
Assessing The Impact Of A Csforall Research-Practice Partnership Using The Prosper Framework: A Case Study Of The Chicago Alliance For Equity In Computer Science (Cafécs), Erin Henrick, Steven Mcgee, Ronald I. Greenberg, Dale Reed, Don Yanek, Lucia Dettori, Haley Williamson
Computer Science: Faculty Publications and Other Works
The Chicago Alliance for Equity in Computer Science (CAFÉCS) Research Practice Partnership (RPP) has been working for more than a decade towards their mission to engage in research and development that enables Chicago Public Schools (CPS) to ensure that all students in Chicago participate in engaging, relevant, and rigorous computing experiences, increase opportunities for all students to pursue computing pathways and prepare all students for the future of work. The partnership engaged in an iterative design process to develop a framework for understanding the areas of RPP impact on a district. This paper applies the PROSPER framework to the CAFÉCS …
Femtotesla Magnetometry And Nanoscale Imaging With Color Centers In Diamond, Yaser Silani
Femtotesla Magnetometry And Nanoscale Imaging With Color Centers In Diamond, Yaser Silani
Optical Science and Engineering ETDs
Intriguing photophysical properties of color centers in diamond make them ideal candidates for many applications from imaging and sensing to quantum networking. In the first part of this work, we have studied the silicon vacancy (SiV) centers in diamond for nanoscale imaging applications. We showed that these centers are promising fluorophores for Stimulated Emission Depletion (STED) microscopy, owing to their photostable, near-infrared emission and favorable photophysical properties. In the second part, we built a femtotesla Radio-Frequency (RF) magnetometer based on the diamond nitrogen vacancy (NV) centers and magnetic flux concentrators. We used this sensor to remotely detect Nuclear Quadrupole Resonance …