Physical Sciences and Mathematics Commons^™

Correcting For Measurement Error In Latent Variables Used As Predictors, Lynne Steuerle Schofield

Mathematics & Statistics Faculty Works

This paper represents a methodological-substantive synergy. A new model, the Mixed Effects Structural Equations (MESE) model which combines structural equations modeling and item response theory, is introduced to attend to measurement error bias when using several latent variables as predictors in generalized linear models. The paper investigates racial and gender disparities in STEM retention in higher education. Using the MESE model with 1997 National Longitudinal Survey of Youth data, I find prior mathematics proficiency and personality have been previously underestimated in the STEM retention literature. Pre-college mathematics proficiency and personality explain large portions of the racial and gender gaps. The …

Science Undergraduate Research Conference 2015 Booklet, Dublin Institute Of Technology, Institute Of Technology, Tallaght, Institute Of Technology, Blanchardstown

Group Reports

Dublin Institute of Technology (DIT), IT Tallaght and IT Blanchardstown hosted the Science Undergraduate Research Conference (SURC 2015) on 13th November 2015 in DIT's Grangegorman Campus. 25 students from DIT, IT Tallaght and IT Blanchardstown who completed an undergraduate research project in a Scientific discipline in the academic year 2014-15 presented at this conference.

The aims of the conference were to:

1. Provide current students with an opportunity to gain an understanding of the work which has been undertaken by recent graduates, and the career opportunities that exist for graduates in Scientific disciplines.
2. Provide recent graduates with an opportunity to gain …

Viscous Fluid In A Horizontally Rotating Cylinder, Kolter Bradshaw, Zach Van Engen

Student Work

If you race a hoop and a disk of equal mass and radius by rolling them down a ramp, the disk will reach the bottom first due to the difference in how the mass is distributed. For rolling solid objects, this phenomenon is straightforward to model. However, if you roll a hollow cylinder filled with fluid, the situation is more complex due to the way fluid properties, such as viscosity, effect rotation. We are analyzing the motion of fluids and beads in a cylinder in order to observe viscosity effects on the fluid-cylinder system. By examining a rolling fluid-cylinder system …

Information Behaviors Of Nuclear Scientists At Korea Atomic Energy Research Institute, Youngchoon Chun, Jiho Yi, Jung-Ran Park, Sangki Choi

Journal of East Asian Libraries

The goal of the study was to analyze the information use behaviors of researchers in the science and technology domain. A survey and interviews were conducted targeting nuclear scientists at the Korea Atomic Energy Research Institute. Study results indicate that the nuclear scientists mainly use the Institute library/information center and Internet portal/search engines during information acquisition. Easy access to information, accuracy, currency and cost are the most critical factors in selecting and obtaining information. The most frequently used database for executing research is the Institute’s electronic library (NUCLIS21) followed by the Citation Index SCOPUS. The results of the study indicate …

Work Integrated Learning In Stem In Australian Universities: Final Report: Submitted To The Office Of The Chief Scientist, Daniel Edwards, Kate Perkins, Jacob Pearce, Jennifer Hong

Dr Daniel Edwards

The Australian Council for Educational Research (ACER) undertook this study for the Office of the Chief Scientist (OCS). It explores the practice and application of Work Integrated Learning (WIL) in STEM, with a particular focus on natural and physical sciences, information technology, and agriculture departments in Australian universities. The project involved a detailed ‘stocktake’ of WIL in practice in these disciplines, with collection of information by interview, survey instruments, consultation with stakeholders and literature reviews. Every university in Australia was visited as part of this project, with interviews and consultation sessions gathering insight from more than 120 academics and support …

Work Integrated Learning In Stem In Australian Universities: Final Report: Submitted To The Office Of The Chief Scientist, Daniel Edwards, Kate Perkins, Jacob Pearce, Jennifer Hong

Dr Jacob Pearce

The Australian Council for Educational Research (ACER) undertook this study for the Office of the Chief Scientist (OCS). It explores the practice and application of Work Integrated Learning (WIL) in STEM, with a particular focus on natural and physical sciences, information technology, and agriculture departments in Australian universities. The project involved a detailed ‘stocktake’ of WIL in practice in these disciplines, with collection of information by interview, survey instruments, consultation with stakeholders and literature reviews. Every university in Australia was visited as part of this project, with interviews and consultation sessions gathering insight from more than 120 academics and support …

Ambiguity In Speaking Chemistry And Other Stem Content: Educational Implications, Mick D. Isaacson, Michelle Michaels

Journal of Science Education for Students with Disabilities

Ambiguity in speech is a possible barrier to the acquisition of knowledge for students who have print disabilities (such as blindness, visual impairments, and some specific learning disabilities) and rely on auditory input for learning. Chemistry appears to have considerable potential for being spoken ambiguously and may be a barrier to accessing knowledge and to learning. Educators in chemistry may be unaware of, or have limited awareness of, potential ambiguity in speaking chemistry and may speak chemistry ambiguously to their students. One purpose of this paper is to increase awareness of potential ambiguity in speaking chemistry and other STEM fields …

Comparison Of Absorption, Fluorescence, And Polarization Spectroscopy Of Atomic Rubidium, Seth T. Ashman, Cayla Stifler, Joaquin Romero

Engineering & Physics Faculty Publications

An ongoing spectroscopic investigation of atomic rubidium utilizes a two-photon, single-laser excitation process. Transitions accessible with our tunable laser include 5P1/2 (F ′ ) ← 5S1/2 (F) and 5P3/2 (F ′ ) ← 5S1/2 (F). The laser is split into a pump and probe beam to allow for Doppler-free measurements of transitions between hyperfine levels. The pump and probe beams are overlapped in a counter-propagating geometry and the laser frequency scans over a transition. Absorption, fluorescence and polarization spectroscopy techniques are applied to this basic experimental setup. The temperature of the vapor cell and the power of the pump and …

Slides: Perspectives On Water Management In Arizona, Kathy Jacobs

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Presenter: Kathy Jacobs, Director, Center for Climate Adaptation Science and Solutions (CCASS), Department of Soil, Water and Environmental Science, University of Arizona

25 slides

Book Review: The Scientific Exploration Of Venus, T. D. Oswalt

Publications

This document is Dr. Oswalt’s review of The Scientific Exploration of Venus, by Fredric W. Taylor. Cambridge, 2014 295p bibl index, 9781107023482 $48.00

Work Integrated Learning In Stem In Australian Universities: Final Report: Submitted To The Office Of The Chief Scientist, Daniel Edwards, Kate Perkins, Jacob Pearce, Jennifer Hong

Higher education research

The Australian Council for Educational Research (ACER) undertook this study for the Office of the Chief Scientist (OCS). It explores the practice and application of Work Integrated Learning (WIL) in STEM, with a particular focus on natural and physical sciences, information technology, and agriculture departments in Australian universities. The project involved a detailed ‘stocktake’ of WIL in practice in these disciplines, with collection of information by interview, survey instruments, consultation with stakeholders and literature reviews. Every university in Australia was visited as part of this project, with interviews and consultation sessions gathering insight from more than 120 academics and support …

An Alternative Route To Teacher Certification: Schoolyard Ecology, Carly Feiro

Scholars Week

This research focuses on an alternative route to teacher certification program that prepares 16 working paraeducators to become elementary teachers. Many of the preservice teachers are bilingual and/or first generation teacher candidates. The 16 working paraeducators form a cohort who are taking classes on week nights, weekends and summers. Two questions guided our summer research: 1. How will preservice teachers content and pedagogical knowledge change as they experience a summer science program that includes a content immersion in cell biology and teaching a schoolyard ecology unit? 2. How will preservice teachers understanding of research-based elements of effective instruction change due …

12th Annual Symposium Of The School Of Science, Engineering And Health, Messiah College

School of Science, Engineering & Health (SEH) Symposium

Welcome to the 12th Annual Symposium of the School of Science, Engineering and Health! This event continues a strong tradition showcasing student an faculty innovation, creativity and productivity in academic departments largely from within the School of Science, Engineering and Health.

Scientific Awareness At Ursinus College, Frank G. Devone

Mathematics Honors Papers

Ursinus College prides itself on creating well-rounded students, and recent initiatives, such as the Fellowships in the Ursinus Transition to the Undergraduate Research Experience Program and the Center for Science and the Common Good suggest that science is a vital part of the Ursinus liberal arts mission. A scientific awareness pilot survey was administered to a sample of Ursinus students drawn from the Class of 2014 and students residing at Ursinus during summer 2014. Experience and data collected from this pilot were used to create a final survey which was made available to all students at Ursinus College. The survey …

Courtship In The Borderlands: Hollistic Intimate Space Creation Within Courtship Ideaologies, Alejandro Sánchez

The Compass

While telling me the story of how she met her husband, Mrs. Aguilar told me “I really feel bad for your generation, they are missing out on falling in love.” She was referring to the courtship practices, or the social regulation and cultural markers between two individuals who create a social relation developing a “relationship.”1 She was comparingthe courtship practices of her generation to that of mine and her statement is reflective of the changes in the cultural environment. From courting, a “relationship” can develop. Its dimensions are defined by the mediation between cultural norms and the agent, and can …

Strategies For Leaders To Counter Social Loafing Through The Use Of Organizational Citizenship Behavior: A Literature Review, Richard Hildreth

The Compass

Social loafing (SL) is a counterintuitive phenomenon that describes a decrease of efficiency observed in both small groups and large organizations. Research over the past century has increased our understanding of SL and identified antecedent factors that appear to reduce or exacerbate its effect. Subsequent organizational models have beenconceived and evolved, starting with organizational citizenship behavior (OCB), which led toward contextualperformance (CP), and recently to contextual and citizenship performance (CCP). Each type of model can provide valuable insight explaining employee behavior and under which contexts SL occurs. Research shows that OCB has improves organizational productivity and competitiveness, due to organizational …

Oak Regeneration In An Eastern Pennsylvania Forest: Is Prescribed Fire Needed?, Samanatha M. Ebert

The Compass

Fire has shaped the American landscape as much as any other natural or anthropogenic disturbance such as flooding, glaciers, and tornadoes, or logging. Native Americans used fire for thousand of years to facilitate farming, travel, and hunting. Since the 1930s, the United States Forest Service has instituted and maintained a policy of firesuppression. This has changed the composition of American forests allowing shade- tolerant later successional species to thrive, but fire-adapted species are declining. This study establishes a baseline of tree composition of State Game Lands 210 in Dauphin County in Eastern Pennsylvania forest in preparation for the proposed controlled …

Drinking And Game Day: The Expansion And Solution To Alcohol Abuse In Collegiate Sporting Events, Karan Arul

The Compass

For the typical American sports fans, a night out to watch a college sporting event involves a celebration of athleticism, spirit, and teamwork. However, as of the 21st century, the act of purchasing and consuming alcohol has become increasingly complimentary to “enjoying the game” in a collegiate sports stadium. In the United States, the National Collegiate Athletic Association (NCAA) is the frontrunner in proliferating collegiate athletics. Yet, the NCAA and its over 1200 member schools “enjoy great profitability from selling and advertising alcohol.”1 As college sporting events continue to rival their professional counterparts in popularity and allegiance, attending a college …

Senator George J. Mitchell Lecture On Sustainability, Senator George J. Mitchell Center For Sustainability Solutions

Cultural Affairs Distinguished Lecture Series

On Thursday, October 15, 2015 the Senator George J. Mitchell Center for Sustainability Solutions will host the 2015 Senator George J. Mitchell Lecture on Sustainability. This event is free and open to all. It will take place at 1pm at Wells Conference Center on the University of Maine campus. Roger A. Pielke, Jr., a key thought leader on effective roles for scientists in political debates and the formulation of public policy, will be the keynote speaker. Senator Mitchell will provide remarks.

The central mission of the Mitchell Center is to serve as a leader and valued partner in understanding and …

Assessment Of Silk Degradation Using Pyrolysis, Conor Makepeace

Honors Projects in Science and Technology

The purpose of this research is to investigate the molecular constitution of silk and the specific causes of post-production degradation in silk material. This capstone project focused specifically on the conditions and degradation of ancient Chinese silk products provided by the Chinese National Silk Museum. Modern silk products were artificially degraded and compared to the ancient silk using Py-GC-MS and comparative analytic techniques. This investigation revealed that the ancient silk products most likely underwent degradation in elevated temperatures while in the presence of moisture and the absence of sunlight or UV radiation during long term burial.

Microbial Communities Of The Providence River, Jacqueline Kratch

Honors Projects in Science and Technology

The Providence River has been industrialized for over one-hundred years. Industries such as oil storage and metal recycling facilities have left high levels of pollutant metals, including lead (Pb), in the soil and water. The elevated Pb concentrations in these environments influence the selection of Pb resistance mechanisms in the bacterial community1. One mechanism of heavy metal resistance is the Pb efflux pump, consisting of proteins in the cell membrane that aid in the transport of Pb out of the cell2. In this study we investigated the co-occurrence of Pb efflux pumps and antibiotic efflux pumps in bacteria from Pb …

Dual-Spacecraft Reconstruction Of A Three-Dimensional Magnetic Flux Rope At The Earth's Magnetopause, H. Hasegawa, B. U. Ö. Sonnerup, S. Eriksson, T. K. M. Nakamura

Dartmouth Scholarship

We present the first results of a data analysis method, developed by Sonnerup and Hasegawa (2011), for reconstructing three-dimensional (3-D), magnetohydrostatic structures from data taken as two closely spaced satellites traverse the structures. The method is applied to a magnetic flux transfer event (FTE), which was encountered on 27 June 2007 by at least three (TH-C, TH-D, and TH-E) of the five THEMIS probes near the subsolar magnetopause. The FTE was sandwiched between two oppositely directed reconnection jets under a southward interplanetary magnetic field condition, consistent with its generation by multiple X-line reconnection. The recovered 3-D field indicates that a …

Cosm News, Georgia Southern University

College of Science and Mathematics News (2012-2019)

• Georgia Southern Professor Selected as the 2015 University Science Teacher of the Year for the State of Georgia

Using Video To Examine Formative Assessment Practices As Measures Of Expertise For Mathematics And Science Teachers, Amelia Wenk Gotwals, Joanne Philhower, Dante Cisterna, Steven Bennett

School of Natural Resources: Faculty Publications

No abstract provided.

07. Criminal Justice, Northeastern State University

Oklahoma Research Day Abstracts

No abstract provided.

04. Botany, Northeastern State University

Oklahoma Research Day Abstracts

No abstract provided.

06. Computer Science, Northeastern State University

Oklahoma Research Day Abstracts

No abstract provided.

03. Biology, Northeastern State University

Oklahoma Research Day Abstracts

No abstract provided.

08. Engineering, Northeastern State University

Oklahoma Research Day Abstracts

No abstract provided.

10. Forensic Science, Northeastern State University

Oklahoma Research Day Abstracts

No abstract provided.