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Articles 1 - 30 of 586

Full-Text Articles in Physical Sciences and Mathematics

Modification Of Chm20 Lab: Synthesis Of Aspirin, Nicole Diaz, Amy Musselman Prof. Oct 2020

Modification Of Chm20 Lab: Synthesis Of Aspirin, Nicole Diaz, Amy Musselman Prof.

KU Inspires! Undergraduate Research Day

No abstract provided.


Congressional Committee Resources On Space Policy During The 115th Congress (2017-2018): Providing Context And Insight Into Us Government Space Policy, Bert Chapman May 2020

Congressional Committee Resources On Space Policy During The 115th Congress (2017-2018): Providing Context And Insight Into Us Government Space Policy, Bert Chapman

Libraries Faculty and Staff Presentations

Article 1 of the US Constitution assigns the US Congress numerous responsibilities. These include creating new laws, revising existing laws, funding government programs, and conducting oversight of these programs' performance. Oversight of US Government agency space policy programs is executed by various congressional space policy committees including the House and Senate Science Committees, Armed Services, and Appropriations Committees. These committees conduct many public hearings on space policy, which invite expert witnesses to testify on US space policy programs and feature debate on the strengths and weaknesses of these programs. Documentation produced by these committees is widely available to the public ...


Javafx Application, Pengfei Huang May 2020

Javafx Application, Pengfei Huang

Student Academic Conference

Developing java GUI application by using JavaFX.


Uptake Of Co(Ii) Ions From Aqueous Solutions By Low-Cost Biopolymers And Their Hybrid, Mohamdia Nassar, Abel E. Navarro May 2020

Uptake Of Co(Ii) Ions From Aqueous Solutions By Low-Cost Biopolymers And Their Hybrid, Mohamdia Nassar, Abel E. Navarro

Publications and Research

Alginate hydrogel beads (AB), spent peppermint leaf (PM), and a hybrid adsorbent of these two materials (ABPM), were studied as potential adsorbents of Cobalt (II) ions from aqueous solutions in batch system at room temperature. Equilibrium parameters such as solution pH, mass of adsorbent and the presence of a crowding agent on the adsorption of Co(II) ions were investigated. The results indicate that Co(II) uptake is maximized at pH values higher than 5, with adsorbent doses in the range 120-200 mg. Co(II) adsorption followed the trend AB > ABPM > PM with adsorption percentages of 77%, 71% and 64 ...


Year Long Water Quality Analysis Of White Horn Brook, Kevin Dyer May 2020

Year Long Water Quality Analysis Of White Horn Brook, Kevin Dyer

Senior Honors Projects

KEVIN DYER (Marine Biology)

Year-long Analysis of the Water Quality of White Horn Brook

Sponsor: Thomas Boving (Geological Sciences)

Water is the foundation for all life on earth and is the most vital resource on this planet. Despite this, oceans and waterways all over the world are being polluted and exploited in ways detrimental to their fundamental hydrologic functions. For instance, excess nitrate levels can lead to eutrophication which gives rise to harmful algae blooms. Low pH can cause the breakdown of CaCO3 exoskeletons of organisms, such mollusks. High temperature variations are major stressors to living things and can cause ...


Mapping The Modern History Of Philosophy Of Religion With Machine Learning, Jackson C. Foster Apr 2020

Mapping The Modern History Of Philosophy Of Religion With Machine Learning, Jackson C. Foster

2020 JHU Richard Macksey National Undergraduate Humanities Research Symposium

A current debate in the philosophy of religion ("PoR") is about future routes for scholarship (see Bilimoria and Irvine 2010; Crockett, Putt, and Robbins 2014; Wildman 2010). Yet, while many scholars have assessed where the field should expand, few have addressed the disciplines' modern history. Making use of new methods in the digital humanities, this project proposes a history of the field based on empirical evidence, a meaningful foundation for future growth. "Mapping the History" utilizes various computational techniques to process twenty-thousand research articles from fifteen journals in PoR and religious studies, spanning a period of over ninety years (from ...


A Fossil Guide For The Community: The Shale Pit In Beaver Springs Pa, Jake Mount Apr 2020

A Fossil Guide For The Community: The Shale Pit In Beaver Springs Pa, Jake Mount

Senior Scholars Day

This study produced a fossil guide for the public from a shale pit owned by Spring Township located at Beaver Springs, PA. This shale exposure, located along Shale Pit Road, represents the Sherman Ridge Member of the Mahantango Formation (Middle Devonian- Givetian). At this location, the exposure is composed of 9-10 m of dark, iron-stained greenish-gray shale, however there is a thin, light bluish-gray, iron-stained shaley-sandstone ledge, ~1 m thick, that occurs within the succession. The shale contains rare to sparse bivalves, straight cephalopods, trilobites, several types of gastropods, crinoid stems and a partial calyx, and carbonized wood. The sandstone ...


Chem 403: Analysis Of Arsenic In Wine Using Xrf, Hannah Meyls Apr 2020

Chem 403: Analysis Of Arsenic In Wine Using Xrf, Hannah Meyls

Student Showcase for Research and Creative Inquiry

Arsenic contamination in food and beverages is a problem due to the harm it can cause consumers. Currently in the United States there is no regulation limit. Red, white, and pink wines will be analyzed for their concentration of inorganic arsenic. Analysis of the wines will be analyzed by x-ray fluorescence spectroscopy (XRF). From this experiment we hope to develop a new method for measuring low concentrations of arsenic in wine.


Fighting Waste And Feeding People: Exploring The Context Of Campus Food Waste And Student Recovery Efforts, Sarah Becker, Max Stout, Maddie Kuklentz, Savona Cerra Apr 2020

Fighting Waste And Feeding People: Exploring The Context Of Campus Food Waste And Student Recovery Efforts, Sarah Becker, Max Stout, Maddie Kuklentz, Savona Cerra

Environmental Studies Presentations

Wismer on Wheels is dedicated to our mission of not only reducing food waste on campus, but also reducing food insecurity in our wider community. The work of our team of over 35 student volunteers reflects that dedication. This past year we became the official Food Recovery Network chapter for Ursinus, broadened outreach efforts on- and off-campus, and boosted food waste education, all while recovering unprecedented quantities of food. In this presentation, we celebrate the accomplishments of our dedicated volunteers while exploring deeper questions about food waste on the Ursinus campus. Why are we seeing such massive food recovery numbers ...


Physics 223 Poster: Hubble Law, Andrew Burghaus Apr 2020

Physics 223 Poster: Hubble Law, Andrew Burghaus

Student Showcase for Research and Creative Inquiry

No abstract provided.


Physics 223 Poster: Hubble Law, William Coleman Apr 2020

Physics 223 Poster: Hubble Law, William Coleman

Student Showcase for Research and Creative Inquiry

No abstract provided.


Physics 223 Poster: Hubble Law, Rayshad Lindsay Apr 2020

Physics 223 Poster: Hubble Law, Rayshad Lindsay

Student Showcase for Research and Creative Inquiry

No abstract provided.


Physics 223 Poster: Statistical Mechanics And Dice, Ibrahim Maday Apr 2020

Physics 223 Poster: Statistical Mechanics And Dice, Ibrahim Maday

Student Showcase for Research and Creative Inquiry

No abstract provided.


Physics 223 Poster: Hubble Law, Nick Zebhideh Apr 2020

Physics 223 Poster: Hubble Law, Nick Zebhideh

Student Showcase for Research and Creative Inquiry

No abstract provided.


Analysis Of Gas Mileage Of A Car, Joshua Ballard-Myer Apr 2020

Analysis Of Gas Mileage Of A Car, Joshua Ballard-Myer

Georgia College Student Research Events

The objective of this work is to analyze a data set, Auto, from the R package ISLR: Introduction to Statistical Learning in R. The data set includes information for 392 observations on 9 variables including gas mileage, horsepower, weight in pounds, and engine displacement in cubic inches. The data set was taken from the StatLib library maintained at Carnegie Mellon University. The primary response variable will be gas mileage in miles per gallon, with all other variables serving as predictors, but other relationships with other response variables such as acceleration will be explored. Results were similar to expected; traits desirable ...


An Investigation Of The Relationship Between Math Curricula And Students' College Readiness, Nancy A. Deluca Apr 2020

An Investigation Of The Relationship Between Math Curricula And Students' College Readiness, Nancy A. Deluca

Scholar Week 2016 - present

State learning standards with increased rigor have required higher levels of achievement from students on standardized tests, high-school grades, and national percentile ranks which are used for collegiate acceptance and course placement. As a result, preparation of students for standardized tests such as the ACT and SAT have become increasingly more challenging. The current quantitative, quasi-experimental study examined the relationship between the tangible math curricula used for instruction and students’ readiness for collegiate coursework. From sample sizes of 128 and 169 high-school students in two consecutive school years, there were several statistically significant relationship differences. Analysis of test results indicated ...


Synthesis Of Cyclopropyl Analogs Of Stereochemically Rigid Probes Of Certain Pharmacological Receptors, Douglas Armstrong, Zachary Emptage, Anderson Verhoeven Apr 2020

Synthesis Of Cyclopropyl Analogs Of Stereochemically Rigid Probes Of Certain Pharmacological Receptors, Douglas Armstrong, Zachary Emptage, Anderson Verhoeven

Scholar Week 2016 - present

Douglas Armstrong, lead ONU faculty researcher, and his two research students, Zachary Emptage and Anderson Verhoeven, expanded their previous research (centered around acetylcholine and cholinergic activity), to include other types of pharmacological receptors, but again, aiming at the same type of compounds (cyclopropyl) to confer conformational (stereochemical) rigidity. The focus now is on compounds which, like acetylcholine, also contain an oxygen atom and a nitrogen atom separated by two carbon atoms, but which have pharmacological activity other than cholinergic. Several pharmacological categories have this pattern as known medicinal agents (“drugs”), including certain antidepressants, antihistamines, anti-anxiety drugs, etc. For some, there ...


Computational Chemistry - Ulk 101, Michaela Montpas Apr 2020

Computational Chemistry - Ulk 101, Michaela Montpas

Scholar Week 2016 - present

Autophagy is a process that generates the necessary building components for cells by cytoplasmic breakdown of unnecessary materials (Martin, Celano, Solitro, Gunaydin, Scott, et. al., 2018). This is a survival technique for cells in times of stress, especially during periods of nutrient starvation. Cancer cells, unfortunately, benefit from this process due to their ability to flourish in nutrient-starved environments, becoming resistant to therapy. The primary protein in mammals responsible for this process is a serine/threonine kinase called ULK 1 (unc-51 like autophagy initiating kinase 1). As such, inhibitors of ULK 1 can be used in cancer therapies in order ...


Heavy-Atom Tunneling, Samuel Powell Apr 2020

Heavy-Atom Tunneling, Samuel Powell

Honors Capstone Enhancement Presentations

No abstract provided.


Wilson Sensor Footballs: Consistency Metric, Kenneth Eaton Apr 2020

Wilson Sensor Footballs: Consistency Metric, Kenneth Eaton

Honors Capstone Enhancement Presentations

No abstract provided.


How Data Is Changing The World Of Healthcare, Cameron Marous Apr 2020

How Data Is Changing The World Of Healthcare, Cameron Marous

Honors Capstone Enhancement Presentations

No abstract provided.


Field Relations, Geochemistry, And Geochronology Of The Rocks At Perkins Point, Castine, Maine, Robert Knowles, Douglas Reusch Apr 2020

Field Relations, Geochemistry, And Geochronology Of The Rocks At Perkins Point, Castine, Maine, Robert Knowles, Douglas Reusch

Individual Projects

Northwest of Castine, Maine is the coastline known as Perkins Point, which is home to about 500 meters of bedrock exposure. Previous mapping projects of Penobscot Bay indicate a discrepancy in rock type for this area, and therefore the origin of the rocks is unclear. Preliminary observations suggest that these rocks are mostly volcanic. The goal of this project is to determine the field relations, geochronology, and geochemistry to conclude the true nature of these rocks and ultimately create a geological map.


Automated Tool Support - Repairing Security Bugs In Mobile Applications, Larry Singleton Mar 2020

Automated Tool Support - Repairing Security Bugs In Mobile Applications, Larry Singleton

Student Research and Creative Activity Fair

Cryptography is often a critical component in secure software systems. Cryptographic primitive misuses often cause several vulnerability issues. To secure data and communications in applications, developers often rely on cryptographic algorithms and APIs which provide confidentiality, integrity, and authentication based on solid mathematical foundations. While many advanced crypto algorithms are available to developers, the correct usage of these APIs is challenging. Turning mathematical equations in crypto algorithms into an application is a difficult task. A mistake in cryptographic implementations can subvert the security of the entire system. In this research, we present an automated approach for Finding and Repairing Bugs ...


Characterization Of Dimerization Domains On The Mannose-6-Phosphate/Insulin-Like Growth Factor 2 Receptor, Tyler Degener Mar 2020

Characterization Of Dimerization Domains On The Mannose-6-Phosphate/Insulin-Like Growth Factor 2 Receptor, Tyler Degener

Student Research and Creative Activity Fair

The mannose-6-phosphate/insulin-like growth factor 2 (M6P/IGF2) receptor is a transmembrane protein with the ability to sequester growth factors from the extracellular matrix. This behavior links the receptor to tumor suppression. On a structural level, the extracellular portion of the protein is segmented into 15 homologous repeats, which can be divided further into 5 triplet domains, labelled 1-3, 4-6, 7-9, 10-12, and 13-15. Each triplet receptor displays its own unique ligand binding affinity, including the ability to form dimers with triplets on a second M6P/IGF2 receptor. In fact, previous studies indicate that this protein functions optimally when dimerized ...


Design, Construction, And Characterization Of A Low-Cost Spectrometer With Interchangeable Parts, Jack Godek Mar 2020

Design, Construction, And Characterization Of A Low-Cost Spectrometer With Interchangeable Parts, Jack Godek

Student Research and Creative Activity Fair

A low-cost spectrometer was designed for the purpose of teaching spectroscopy. The spectrometer can be built by the student and contains interchangeable pieces such as slit width, grating, and lenses. This will allow the student to understand how changing these variables effects resolution. The spectrometer was constructed from PVC pipe, a plastic electrical box, and a USB webcam. The actual resolution of the spectrometer is close to the theoretical value, depending on which lens and grating is used. In addition, an extra piece can be added that allows absorption spectra to be collected. Having the student piece together the spectrometer ...


What Is The Most Threatening Disaster To The Continental United States?, Aaron Spomer, Elijah Kaufman, Julisa Prieto-Garcia, Brooke Aschwanden Mar 2020

What Is The Most Threatening Disaster To The Continental United States?, Aaron Spomer, Elijah Kaufman, Julisa Prieto-Garcia, Brooke Aschwanden

Student Research and Creative Activity Fair

Our goal for our project is to fully understand which natural disaster is the most destructive to the United States. We have chosen to compare hurricanes, floods, tornadoes, wildfires, earthquakes, and nor’easters. We have researched the cost of the total damage and repair, how the warning systems have improved over time, the death tolls from each, and also the frequency at which each one occurs. Each group member will research a different disaster impact, and the data will create a comprehensive view of the level of devastation each disaster has. We collected data all the way from the early ...


A Writing Intensive Upper Division Astrophysics/Planetary Science Course, Laura M. Woodney Feb 2020

A Writing Intensive Upper Division Astrophysics/Planetary Science Course, Laura M. Woodney

Q2S Enhancing Pedagogy

This poster describes the major writing components of an upper division Astronomy or Planetary Science course. These components are intended to be integrated throughout the semester along with the content of the course. The papers the instructor chooses for the scaffolded assignments should compliment/enhance the content the students are learning in the course. This project used the "Backwards Design" method from Bean (2011, citation in poster): where the instructor first identifies the final project, determines what challenges the students will encounter attempting to do that project, and then builds scaffolded assignments intended to address each of these challenges. This ...


Everyone Loves Gummi Bears! Removing The Intimidation Factor From Research Data Management With Yummy Fun., Dawn N. Cannon-Rech, Jeffrey M. Mortimore Feb 2020

Everyone Loves Gummi Bears! Removing The Intimidation Factor From Research Data Management With Yummy Fun., Dawn N. Cannon-Rech, Jeffrey M. Mortimore

Georgia International Conference on Information Literacy

How do you get students excited about research data management and attract over 70 participants to a voluntary workshop? How do you get Librarians excited about teaching a research data management workshop to undergraduates? With the promise of Gummi Bears and hands-on fun! During this workshop session, presenters will break down their experience overhauling a faculty workshop into an active learning session to expose students of all experience levels to basic research data management concepts and techniques. Presenters will walk participants through their design process from inception to delivery, highlighting how Gummi Bears lessened students’ intimidation with this complex topic ...


Efforts To Improve Student Engagement In Introductory Physics (Phys 121 & 221), John Mcgill Feb 2020

Efforts To Improve Student Engagement In Introductory Physics (Phys 121 & 221), John Mcgill

Q2S Enhancing Pedagogy

The number of iClicker questions per lecture were increased in order to improve student engagement and understanding in introductory physics classes. Engagement was noticeably improved, but there was no clear improvement of student performance.


Taking The *Sigh* Out Of Science, Kathleen Devlin Feb 2020

Taking The *Sigh* Out Of Science, Kathleen Devlin

Q2S Enhancing Pedagogy

This PowerPoint presentation describes a project where I will use social media in an attempt to improve the negative perception of science. Beginning Fall 2020, on the first day of class, I will have the students complete a pre-assessment on their perception of science. I will then ask the students to follow at least one pre-selected science person/group on either Instagram, Twitter, or Youtube. Each week I will have them do a quick think-pair-share on the topic they followed, and then do a short writing assignment. At the end of the semester I will have them complete a post-assessment ...