Digital Commons Network^™

Using Computer-Based Testing With Young Children, Susan K. Barnes

NERA Conference Proceedings 2010

The purpose of this study was to explore the feasibility of using computer-based tests (CBT) with children in preschool and kindergarten. Children were administered paper-and-pencil (PPT) and CBT versions of a rhyme awareness scale. An embedded mixed methods design was used to explore to what extent children could complete the CBT independently, how children reacted to the tests, and how the results from the CBT and the PPT compared. Findings were that children needed help with the CBT and enjoyed using the computer. Preliminary evidence indicated that test mode mattered. These results have implications for future test development and use.

A Comparison Of Linear And Nonlinear Factor Analysis In Examining The Effect Of A Calculator Accommodation On Math Performance, Minji Kang Lee, Craig S. Wells, Stephen G. Sireci

NERA Conference Proceedings 2010

In a statewide achievement test, the use of a calculator is often allowed as an accommodation for students with disabilities (SWD). The purpose of the accommodation is to eliminate the disadvantage faced by SWDs relative to peers without disabilities with the same level of overall mathematics proficiency. However, it is important to determine if the accommodation has changed the construct and meaning of the test scores. One way of examining whether the construct has changed due to the accommodation is to compare performance on the assessment for SWDs to peers without disabilities, controlling for differences in proficiency. In this study, …

Students As The Definitive Source Of Formative Assessment: Academic Self-Assessment And The Self-Regulation Of Learning, Heidi L. Andrade

NERA Conference Proceedings 2010

This paper presents a synthesis of scholarship on formative assessment, self-assessment, and self-regulated learning. It has two objectives: (1) to bridge the gap between two related but distinct areas of inquiry, (2) to illustrate how research on self-regulation can inform the study of formative assessment in general and self-assessment in particular. The paper begins by briefly reviewing and integrating the relevant literatures. It then presents a simple model, proposes general principles for supporting self-assessment and self-regulation in the classroom, and presents examples from classroom practice.

Teacher Quality, Content Knowledge, And Self-Efficacy In One Mathematics Teach For America Cohort, Brian R. Evans

NERA Conference Proceedings 2010

The purpose of this study was to understand the relationships between mathematical content knowledge and perceptions of teaching self-efficacy in one cohort of Teach for America teachers. It was found that teachers had high levels of self-efficacy. It was also found that mathematics related majors had higher mathematical content knowledge than did business majors, but similar levels of self-efficacy. Liberal arts majors had similar content knowledge and levels of self-efficacy as did mathematics related majors.

Retention Of Most-At-Risk Entering Students At A Four Year College, Hari P. Koirala, Marsha J. Davis, Carmen R. Cid

NERA Conference Proceedings 2010

The literature on retention and graduation of college students suggests that institutions that serve higher proportions of at-risk students, such as low-income, first-generation, and minority students, have generally lower four-year and six-year graduation rates. Using both quantitative and qualitative research methodologies, this study focused on the retention of students from first to second year and from second to third year at a four-year college. Consistent with the literature, it was found that a disproportionately higher percentage of the at-risk students are likely to leave college without graduating. This study adds to the literature by providing specific information about factors that …

Helping Urban Teachers Help Students Read Science: A Partnership, Margaret Lally Queenan

NERA Conference Proceedings 2010

Eighty percent of fourth graders in a Northeast school had not met the
NCLB reading “goal.” Research questions asked: Will comprehension
strategies move students toward proficiency, and will a
researcher-teachers collaboration support that effort? Data included
student artifacts, student interviews, discussion transcripts, researcher
lesson plans, and field notes. Data were analyzed through coding and
constant comparison. Surveys confirmed that students learned comprehension
strategies; student writing confirmed that they learned content. However,
only 38% reached “proficiency” on standardized tests. Comprehension
strategies were necessary but not sufficient for reading. Guided reading
increased intensive instructional time but reduced time for learning
content.

Ordinal Regression Analysis: Fitting The Continuation Ratio Model To Educational Data Using Stata, Xing Liu

NERA Conference Proceedings 2010

Ordinal data are widely available to educational researchers. One of the most commonly used models to analyze ordinal data is the proportional odds (PO) model, which is also known as the cumulative odds model. However, when the research interest is focused on a particular category rather than at or below that category, given that an individual must pass through a lower category before achieving a higher level, the continuation ratio model (Fienberg, 1980; Hardin & Hilbe, 2007; Long & Freese, 2006) is a more appropriate choice than the proportional odds model. The purpose of this paper was to demonstrate the …

Rotunda-Vol 89, No 7-Oct 20, 2010, Longwood University

Rotunda

No abstract provided.

Bromide And Other Ions In The Snow, Firn Air, And Atmospheric Boundary Layer At Summit During Gshox, Jack E. Dibb, Luke D. Ziemba, J Luxford, P Beckman

Earth Sciences

Measurements of gas phase soluble bromide in the boundary layer and in firn air, and Br⁻ in aerosol and snow, were made at Summit, Greenland (72.5° N, 38.4° W, 3200 m a.s.l.) as part of a larger investigation into the influence of Br chemistry on HO_x cycling. The soluble bromide measurements confirm that photochemical activation of Br⁻ in the snow causes release of active Br to the overlying air despite trace concentrations of Br⁻ in the snow (means 15 and 8 nmol Br⁻ kg⁻¹ of snow in 2007 and 2008, respectively). Mixing ratios of …

First Search For Gravitational Waves From The Youngest Known Neutron Star, J. Abadie, B. P. Abbott, R. Abbott, Matthew Benacquista, Teviet Creighton, Mario C. Diaz, Soumya D. Mohanty, Soma Mukherjee, Volker Quetschke, Malik Rakhmanov, Joseph D. Romano

Physics & Astronomy Faculty Publications

We present a search for periodic gravitational waves from the neutron star in the supernova remnant Cassiopeia A. The search coherently analyzes data in a 12 day interval taken from the fifth science run of the Laser Interferometer Gravitational-Wave Observatory. It searches gravitational-wave frequencies from 100 to 300 Hz and covers a wide range of first and second frequency derivatives appropriate for the age of the remnant and for different spin-down mechanisms. No gravitational-wave signal was detected. Within the range of search frequencies, we set 95% confidence upper limits of (0.7-1.2) × 10 -24 on the intrinsic gravitational-wave strain, (0.4-4) …

Three Dimensional Lattice Gravity As Supersymmetric Yang-Mills Theory, Simon Catterall

Physics - All Scholarship

We argue that a certain twisted supersymmetric Yang-Mills theory in three dimensions with gauge group SU(2) possesses a set of topological observables whose expectation values can be computed in a related Chern Simons theory. This Chern Simons theory has been proposed as a definition of three dimensional Euclidean quantum gravity. Since the YM theory admits a discretization which preserves the values of topological observables we conjecture that it can be used as a non-perturbative definition of the quantum gravity theory.

Soundings 2010-10, N/A N/A

Soundings

No abstract provided.

The Design And Synthesis Of Functionalized Porphyrins And Their Applications In Group Transfer Reactions, Medicine, And Materials, Kimberly Bliss Fields

USF Tampa Graduate Theses and Dissertations

Porphyrins and their analogs are a class of chemically and biologically important compounds that have found a variety of applications in different fields such as catalysis, medicine, and materials. The physical, chemical, and biological dependence of the peripheral substituents of porphyrins on their properties has prompted great effort towards the synthesis of new porphyrins with different electronic, steric, and conformational environments. To this end, porphyrins have been prepared using a modular approach from bromo- and triflate synthons. These synthons underwent palladium-catalyzed cross-coupling with chiral amines, amides, alcohols, and boronic esters to create products that were tested for biological activity.

Metalloporphyrins …

Ultra-Compact Dwarfs In The Core Of The Coma Cluster, Juan P. Madrid, Alister W. Graham, William E. Harris, Paul Goudfrooij, Duncan A. Forbes, David Carter, John P. Blakeslee, Lee R. Spitler, Henry C. Ferguson

Physics & Astronomy Faculty Publications

We have discovered both a red and a blue subpopulation of ultra-compact dwarf (UCD) galaxy candidates in the Coma galaxy cluster. We analyzed deep F475W (Sloan g) and F814W (I) Hubble Space Telescope images obtained with the Advanced Camera for Surveys Wide Field Channel as part of the Coma Cluster Treasury Survey and have fitted the light profiles of similar to 5000 point-like sources in the vicinity of NGC 4874, one of the two central dominant galaxies of the Coma Cluster. Although almost all of these sources are globular clusters that remain unresolved, we found that 52 objects have effective …

Detecting Massive Gravitons Using Pulsar Timing Arrays, Kejia Lee, F. A. Jenet, Richard H. Price, Norbert Wex, Michael Kramer

Physics & Astronomy Faculty Publications

At the limit of weak static fields, general relativity becomes Newtonian gravity with a potential field that falls off as inverse distance rather than a theory of Yukawa-type fields with a finite range. General relativity also predicts that the speed of disturbances of its waves is c, the vacuum light speed, and is non-dispersive. For these reasons, the graviton, the boson for general relativity, can be considered to be massless. Massive gravitons, however, are features of some alternatives to general relativity. This has motivated experiments and observations that, so far, have been consistent with the zero-mass graviton of general relativity, …

Flat Zipper-Unfolding Pairs For Platonic Solids, Joseph O'Rourke

Computer Science: Faculty Publications

We show that four of the five Platonic solids' surfaces may be cut open with a Hamiltonian path along edges and unfolded to a polygonal net each of which can "zipper-refold" to a flat doubly covered parallelogram, forming a rather compact representation of the surface. Thus these regular polyhedra have particular flat "zipper pairs." No such zipper pair exists for a dodecahedron, whose Hamiltonian unfoldings are "zip-rigid." This report is primarily an inventory of the possibilities, and raises more questions than it answers.

First Search For Gravitational Waves From The Youngest Known Neutron Star, J. Abadie, B. P. Abbott, R. Abbott, M. Abernathy, C. Adams, R. Adhikari, P. Ajith, B. Allen, G. Allen, E. Amador Ceron, R. S. Amin, S. B. Anderson, W. G. Anderson, M. A. Arain, M. Araya, M. Aronsson, Y. Aso, S. Aston, D. E. Atkinson, P. Aufmuth, C. Aulbert, S. Babak, P. Baker, S. Ballmer, D. Barker, S. Barnum, B. Barr, P. Barriga, L. Barsotti, M. A. Barton, I. Bartos, Tiffany Z. Summerscales

Faculty Publications

We present a search for periodic gravitational waves from the neutron star in the supernova remnant Cassiopeia A. The search coherently analyzes data in a 12 day interval taken from the fifth science run of the Laser Interferometer Gravitational-Wave Observatory. It searches gravitational-wave frequencies from 100 to 300 Hz and covers a wide range of first and second frequency derivatives appropriate for the age of the remnant and for different spin-down mechanisms. No gravitational-wave signal was detected. Within the range of search frequencies, we set 95% confidence upper limits of (0.7-1.2) × 10 -24 on the intrinsic gravitational-wave strain, (0.4-4) …

Model Development As A Research Tool: An Example Of Pak-Nisea, Farzana Shafique, Khalid Mahmood

Library Philosophy and Practice (e-journal)

The study consists of two parts. The first briefly highlights the research methods used in library and information science (LIS). It identifies model development as an effective research method for LIS research. It also reviews different aspects of models and their use in LIS research in Pakistan. The second part illustrates an example of a draft model entitled “PAK-NISEA” recently proposed for a PhD project. Related issues of the proposed model, i.e. rationale, objectives, research methodology, data collection process, important characteristics of PAK-NISEA, are also discussed.

Uncertainties In Transient Capture-Zone Estimates Of Groundwater Supply Wells, Velimir V. Vesselinov

Journal of Contemporary Water Research and Education

No abstract provided.

Rotation Periods Of Exoplanet Host Stars, E. K. Simpson, Sallie L. Baliunas, Gregory W. Henry, Christopher A. Watson

Information Systems and Engineering Management Research Publications

The stellar rotation periods of 10 exoplanet host stars have been determined using newly analysed Ca ii H&K flux records from the Mount Wilson Observatory and Strömgren b, y photometric measurements from Tennessee State University's automatic photometric telescopes at the Fairborn Observatory. Five of the rotation periods have not previously been reported, with that of HD 130322 very strongly detected at Prot= 26.1 ± 3.5 d. The rotation periods of five other stars have been updated using new data. We use the rotation periods to derive the line-of-sight inclinations of the stellar rotation axes, which may be used to probe …

Introducing Niche, Alan Maceachern

History Presentations

No abstract provided.

Automatic Classification Of Article Errors In L2 Written English, Aliva M. Pradhan, Aparna S. Varde, Jing Peng, Eileen M. Fitzpatrick

Department of Computer Science Faculty Scholarship and Creative Works

This paper presents an approach to the automatic classification of article errors in non-native (L2) English writing, using data chosen from the MELD corpus that was purposely selected to contain only cases with article errors. We report on two experiments on the data: one to assess the performance of different machine learning algorithms in predicting correct article usage, and the other to determine the feasibility of using the MELD data to identify which linguistic properties of the noun phrase containing the article are the most salient with respect to the classification of errors in article usage. Copyright © 2010, Association …

Discover Open Access To Peer-Reviewed Research, Marianne A. Buehler

Library Faculty Presentations

Open access allows global users to search/locate, read, download, distribute, copy, print, or link to full-text research in:
Journal articles
Proceedings/Presentations
Technical reports
Theses/Dissertations
Datasets
And more…

Virtual Blasting System For Removal Of Coating And/Or Rust From A Virtual Surface, Michael Bolick, Chris Lampe, Jason Ebensberger, Jeremiah Treloar, Rick Klein, Eric Conrad Peterson, Chad Jason Zalkin

Patents (University of Northern Iowa)

A computer simulation and virtual reality system simulates the use of a blasting nozzle to remove one or more coatings and/or rust from a virtual surface. The user operates an electronic controller in the form of a blasting nozzle that outputs a signal indicating whether the blasting nozzle controller is in an "on" position or in an "off" position. The system also has a motion tracking system that tracks the position and orientation of the blasting nozzle controller with respect to the virtual surface defined on the display screen. Simulation software in a computer generates virtual blast pattern data, and …

Flyer News, Vol. 58, No. 10 (Oct. 19, 2010), University Of Dayton

Flyer News

Student-run newspaper of the University of Dayton.

Analysis Of Stochastic Disruptions To Support Design Of Capacitated Engineered Networks, Andrés Fernando Uribe-Sánchez

USF Tampa Graduate Theses and Dissertations

This work is a compilation of four manuscripts, three of which are published and one is

in the second round of review, all in refereed journals. All four manuscripts focus on analysis

of stochastic disruptions to support design of capacitated engineered networks. The work

is motivated by limited ability to mitigate elevated risk exposure of large-scale capacitated

enterprise networks functioning in lean environments. Such inability to sustain enterprise

capacity in the face of disruptions of various origins has been causing multi-billion enterprise

forfeitures and hefty insurance premiums. At the same time, decision support methodologies

for reliable design of dynamic capacitated …

Synthesis Of Functionalized Resorcin[4]Arene Via Click Chemistry, Ali Husain

USF Tampa Graduate Theses and Dissertations

Click chemistry is a very powerful chemical strategy that overcome carbon-carbon bond with carbon-heteroatom bond by joining small units with heteroatom links (C-X-C) using spring-loaded reactants. The Cu(I)-catalyzed Huisgen 1,3-dipolar cycloaddition is a major example based on the click chemistry philosophy. This method was used for the last 10 years to join different functional groups, carbohydrates, aminoacids, polymers to calix[4]arene and resorcin[4]arene cavitands by a stable 1,2,3-triazole linkages.

Herein I describe our interest in this type of click chemistry reaction in the synthesis of dimeric capsules resorcin[4]arene via four 1,2,3-triazole linkages. Two different resorcin[4]arene derivatives were synthesized in which four …

Dynamic Evolution Of Precise Regulatory Encodings Creates The Clustered Site Signature Of Enhancers, Justin Crocker, Nathan Potter, Albert Erives

Dartmouth Scholarship

Concentration gradients of morphogenic proteins pattern the embryonic axes of Drosophila by activating different genes at different concentrations. The neurogenic ectoderm enhancers (NEEs) activate different genes at different threshold levels of the Dorsal (Dl) morphogen, which patterns the dorsal/ventral axis. NEEs share a unique arrangement of highly constrained DNA-binding sites for Dl, Twist (Twi), Snail (Sna) and Suppressor of Hairless (Su(H)), and encode the threshold variable in the precise length of DNA that separates one well-defined Dl element from a Twi element. However, NEEs also possess dense clusters of variant Dl sites. Here, we show that these increasingly variant sites …

2010 October 19, Faculty Senate Minutes, State Univerity Of New York College At Cortland

Minutes

Faculty Senate Minutes No. 4, October 19, 2010

Comparison Of Bacteroides Human Markers For Pollution Diagnostics In Recreational Waters, Asli Aslan, Joan B. Rose

Environmental Health Sciences: Faculty Presentations (2010-2017)

This presentation was given during the Great Lakes Beach Association Annual Conference.