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Superintendents Speak Out: A Survey Of Superintendents’ Opinions Regarding Recent School Reforms In Arkansas, Virginia H. Blankenship, Joshua H. Barnett Apr 2006

Superintendents Speak Out: A Survey Of Superintendents’ Opinions Regarding Recent School Reforms In Arkansas, Virginia H. Blankenship, Joshua H. Barnett

Arkansas Education Reports

In an effort to improve educational opportunities for all students, Arkansas policymakers have made education reforms in many areas since 2003, such as increasing school funding by nearly 30 percent, consolidating both districts with enrollments below 350 students and inefficient schools, and strengthening accountability measures designed to raise academic achievement. However, there is little empirical evidence about how any of these reforms have impacted districts, schools, and students across the state, so policymakers have no way of knowing whether such reforms have the potential to improve student achievement and help close the achievement gap between disadvantaged students and their more …

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Evaluation Of The Dc Opportunity Scholarship Program: Second Year Report On Participation, Patrick J. Wolf, Babette Gutmann, Michael Puma, Marsha Silverberg Apr 2006

Evaluation Of The Dc Opportunity Scholarship Program: Second Year Report On Participation, Patrick J. Wolf, Babette Gutmann, Michael Puma, Marsha Silverberg

School Choice Demonstration Project

By fall 2005, the DC Opportunity Scholarship Program (OSP), the first federally funded voucher program in the United States, was in its second year serving low-income students in the nation’s capital. More than 5,800 students have applied to the Program over the 2 years, and about 2,300 of them—eligible public school students who participated in a lottery to determine scholarship award—are the subject of a rigorous impact evaluation mandated by the Program statute. While the most important questions for the evaluation are about the Program’s effectiveness in improving student outcomes, data are still being collected for that analysis and will …

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University Of Arkansas Graduate School Catalog, 2005-2006, University Of Arkansas, Fayetteville Jan 2006

University Of Arkansas Graduate School Catalog, 2005-2006, University Of Arkansas, Fayetteville

Graduate School Catalog of Studies

No abstract provided.

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University Of Arkansas Catalog Of Studies, 2005-2006, University Of Arkansas, Fayetteville Jan 2006

University Of Arkansas Catalog Of Studies, 2005-2006, University Of Arkansas, Fayetteville

Undergraduate Catalog of Studies

No abstract provided.

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Annual Report, 2006, University Of Arkansas, Fayetteville. Department Of Industrial Engineering. Jan 2006

Annual Report, 2006, University Of Arkansas, Fayetteville. Department Of Industrial Engineering.

Industrial Engineering Annual Report

No abstract provided.

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Annual Report, 2006, University Of Arkansas, Fayetteville. School Of Continuing Education And Academic Outreach Jan 2006

Annual Report, 2006, University Of Arkansas, Fayetteville. School Of Continuing Education And Academic Outreach

School of Continuing Education and Academic Outreach - Global Campus Annual Report

No abstract provided.

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Dynamic Composition Of Agent Grammars, Kyle Neumeier Jan 2006

Dynamic Composition Of Agent Grammars, Kyle Neumeier

Inquiry: The University of Arkansas Undergraduate Research Journal

In the very near future, as pervasive computing takes root, there will be an explosion of everyday objects that are uniquely identifiable and wrapped by a computational layer- effectively bringing the object to life. An important component of this system is the mechanism that will allow humans to interface with the objects. Menu Based Natural Language Interfaces (MBNLI) seem like a good candidate for this job because of the intuitive way in which they allow the user to build commands. However, the MBNLI system will have to scale with the number of objects in the system. This project describes context …

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Annual Report, 2006, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering Jan 2006

Annual Report, 2006, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.

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Biometric Security: Are Inexpensive Biometric Devices Reliable Enough To Gain Wide-Spread Security Usage?, Brian Thanh Tran Jan 2006

Biometric Security: Are Inexpensive Biometric Devices Reliable Enough To Gain Wide-Spread Security Usage?, Brian Thanh Tran

Inquiry: The University of Arkansas Undergraduate Research Journal

The ever growing need for security in today' s world requires exploring the feasibility of various security methods to ensure the safety of the world's population. With the tremendous growth of technology, e-commerce, and business globalization, society implements new methods to try to battle security problems. Technology advances has resulted in a number of inexpensive biometric devices to the marketplace. Two questions surface regarding this devices-are they reliable enough for general usage and will people be willing to use them? This research conducted a repeated design experiment to determine the effectiveness of four inexpensive biometric devices-three fingerprint readers and an …

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Variational Symmetries And Conservation Laws In Linearized Gravity, Balraj Menon Jan 2006

Variational Symmetries And Conservation Laws In Linearized Gravity, Balraj Menon

Journal of the Arkansas Academy of Science

The methods of symmetry group analysis are applied to the action functional of linearized gravity to derive necessary conditions for the existence of variational symmetries. Two classes of variational symmetries of linearized gravity are discussed, and the local conservation laws associated with these variational symmetries are presented by applying Noether's theorem

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Density Functional Studies Of The Structure And Bonding Of Nitrosyl Metalloporphyrin Complexes, John P. Graham, Robbie Davis Jan 2006

Density Functional Studies Of The Structure And Bonding Of Nitrosyl Metalloporphyrin Complexes, John P. Graham, Robbie Davis

Journal of the Arkansas Academy of Science

Density functional calculations were used to determine optimized geometries fornitrosyl-metalloporphyrin complexes of Fe(II),Co(II)and Mn(II).The optimized structures were found to be consistent with experimental data and previous computational predictions using single point density functional calculations. Vibrational frequencies for the N-0stretching mode were also calculated and shown to be consistent with experimental data. The nature of the bonding between the metal center and nitrosyl ligand is discussed in relation to the structure of the M-N-0 linkage. The results were found to be consistent with previous descriptions derived from the Fenske-Hall approximate molecular orbital method. Other interesting structural features in the optimized geometries …

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Aquatic Macroinvertebrates Of The Strawberry River System In North-Central Arkansas, George L. Harp, Henry W. Robison Jan 2006

Aquatic Macroinvertebrates Of The Strawberry River System In North-Central Arkansas, George L. Harp, Henry W. Robison

Journal of the Arkansas Academy of Science

The Strav/berry River has been designated an Extraordinary Resource Water, an Ecologically Sensitive Water Body, and a Natural and Scenic Waterway. As such, it is particularly important that the biodiversity of this river system be documented thoroughly. The purpose of this research was to develop a comprehensive list of the aquatic macroinvertebrates of the Strawberry River and its major tributaries. The information was developed from a thorough literature review and by examining specimens housed in various collections of the Arkansas State University Museum of Zoology and collections of the authors. The latter included 9 collections at 4 sites along the …

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Electron Shock Waves, Mostafa Hemmati, Michael Weller, Taylor Duncan Jan 2006

Electron Shock Waves, Mostafa Hemmati, Michael Weller, Taylor Duncan

Journal of the Arkansas Academy of Science

In this paper we describe numerical investigations of breakdown waves concentrating on antiforce waves. We employed one-dimensional electron fluid dynamical equations for a luminous pulse wave propagating into a neutral gas region and subjected to an applied electric field. We assumed that the electrons were the main element in the propagation of the wave and that the electron gas partial pressure provided the driving force. These waves are considered to be shock fronted and are composed of two regions: the thin sheath region behind the shock front and the thicker quasi-neutral region following the sheath region. Our set of equations, …

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Parallel Algorithms For Multicriteria Shortest Path Problems, David L. Sonnier Jan 2006

Parallel Algorithms For Multicriteria Shortest Path Problems, David L. Sonnier

Journal of the Arkansas Academy of Science

This paper presents two strategies for solving multicriteria shortest path problems with more than two criteria. Given an undirected graph within vertices, medges, and a set of K weights associated with each edge, we define a path as a sequence of edges from vertex s to vertex t. We want to find the Pareto-optimal set of paths from s to t. The solutions proposed herein are based on cluster computing using the Message-Passing Interface (MPI) extensions to the C programming language. We solve problems with 3 and 4 criteria, using up to 8 processors in parallel and using solutions based …

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Revised Publication Policies And Instructions For Prospective Authors, Academy Editors Jan 2006

Revised Publication Policies And Instructions For Prospective Authors, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

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Ichthyofaunal Assemblages In Three Approximate But Ecologically Diverse Streams In Clark County, Arkansas, C. Renn Tumlison, Scott Jordan, Lesley Self, Henry W. Robison Jan 2006

Ichthyofaunal Assemblages In Three Approximate But Ecologically Diverse Streams In Clark County, Arkansas, C. Renn Tumlison, Scott Jordan, Lesley Self, Henry W. Robison

Journal of the Arkansas Academy of Science

Three tributaries to the Ouachita River in eastern Clark County, Arkansas, empty into the river within a collective distance of about 9 km. The streams drain basins derived from the Wilcox formation, partially overlain by terrace and alluvial deposits. Despite their proximity, the streams are very different: L'Eau Frais has a gravel substrate and was recognized by the French as a cool water stream, Tupelo Creek is a bottomland stream from which numerous Water Tupelo (Nyssa aquatica) emerge, and Saline Bayou was named due to its marked salinity. We studied the assemblages of fishes in these 3 very different drainages …

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Evaluation Of Water-Retention Ability Of Eastern Arkansas Prairie And Agricultural Soil, Maria L. Barrenechea, Kristofor R. Brye Jan 2006

Evaluation Of Water-Retention Ability Of Eastern Arkansas Prairie And Agricultural Soil, Maria L. Barrenechea, Kristofor R. Brye

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Agricultural land use affects soil physical properties, such as bulk density, water content, organic matter content, and soil structure; all of which in turn affect ecosystem productivity. The objective of this study was to evaluate the effects of: 1) time since aboveground biomass has been removed by haying (i.e., 0 vs. 23 years), and 2) land use (i.e., undisturbed tallgrass prairie vs. cultivated agriculture) on water-retention characteristics in a silt-loam soil of the Grand Prairie region of eastern Arkansas. Soil samples were collected from the 0- to 10-cm depth and were wetted with varying amounts of distillated water to create …

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Water Quality Issues In The Illinois River Watershed: A Proposal For New Voluntary Incentives, Tory B. Hodges, Jennie S. Popp Jan 2006

Water Quality Issues In The Illinois River Watershed: A Proposal For New Voluntary Incentives, Tory B. Hodges, Jennie S. Popp

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Concerns about water quality degradation exist in Northwest Arkansas. The purpose of this study was to analyze the potential usefulness of U.S. conservation programs in addressing water quality concerns on farms in the Illinois River watershed as well as greater Washington County, Arkansas. It was hypothesized that neither the Environmental Quality Incentives Program (EQIP) nor the Conservation Security Program (CSP) in their current forms effectively assists farmers in meeting water-quality management goals. That hypothesis was tested by 1) examining agricultural characteristics of the watershed, 2) actual adoption of EQIP and CSP in Washington County and Arkansas, and, 3) identifying factors …

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Estimating Surface Runoff In The Illinois River Basin For The Management Of Nonpoint-Source Phosphorus Loads, Adam T. Mcclymont, Mary C. Savin, Brian E. Haggard Jan 2006

Estimating Surface Runoff In The Illinois River Basin For The Management Of Nonpoint-Source Phosphorus Loads, Adam T. Mcclymont, Mary C. Savin, Brian E. Haggard

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

With the growing concern about elevated phosphorus (P) concentrations in regional lakes, rivers, and streams, it is essential to investigate factors contributing to P transport from the landscape. Phosphorus fluxes from nonpoint sources, particularly land applications of poultry litter and other animal manures, are closely related to the amount and production of surface runoff. Daily stream discharge and the software program, Base Flow Index (BFI), were used to estimate the amount and temporal patterns of surface runoff at different locations within the Illinois River Basin, including selected tributaries in northwest Arkansas and northeast Oklahoma. Daily streamflow data from nine U.S. …

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A Tool For Estimating Best Management Practice Effectiveness In Arkansas, Katherine R. Merriman, Margaret Gitau, Indrajeet Chaubey Jan 2006

A Tool For Estimating Best Management Practice Effectiveness In Arkansas, Katherine R. Merriman, Margaret Gitau, Indrajeet Chaubey

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Increased nutrient and sediment losses from expanding agricultural practices and urban development in Arkansas are important environmental concerns. Best Management Practices (BMPs) are being implemented to lessen the effects of these developments on existing water bodies. There is, however, insufficient scientific base as to the effectiveness of these practices. A number of studies have been conducted in recent years to determine BMP effectiveness. Data from these studies can only be reliably used for the individual site from which they were obtained. When considered collectively, these data comprise quantitative effectiveness over a wide range of conditions and can thus be used …

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Study Of Causal Component Placement In An Active Sound Cancellation System, Eileen Anderson, Andrew B. Wright Jan 2006

Study Of Causal Component Placement In An Active Sound Cancellation System, Eileen Anderson, Andrew B. Wright

Journal of the Arkansas Academy of Science

In a feedforward Active Sound Cancellation (ASC) system, the acoustic delay between a primary source and an error microphone must be greater than the delay between the measurement of that source by the reference microphone and the arrival of the secondary source's wave at the error microphone. Such a configuration is called a causal configuration. For periodic disturbances, cancellation can still be achieved in non-causal configuration. Since the waveform is periodic, each cycle of the waveform is identical, and the cycle being canceled is not the measured part of the waveform, but a subsequent cycle in the waveform. Non-periodic sources …

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Perkin Reaction: Rapid And Efficient Process Optimization Through A Microwave/Design Of Experiments Couple, R. David Pace, Laura Mcwilliams Jan 2006

Perkin Reaction: Rapid And Efficient Process Optimization Through A Microwave/Design Of Experiments Couple, R. David Pace, Laura Mcwilliams

Journal of the Arkansas Academy of Science

Microwave chemistry and a Design of Experiments (DOE) protocol were employed together in order to rapidly and efficiently optimize a modified Perkin reaction. Microwave heating significantly reduced the reaction time, and the DOE provided a statistically significant understanding of underlying process relationships in a minimum number of experimental runs. In all, the reaction time was reduced from1hour to 2 minutes, factors important to yield were identified, an interesting cross-term interaction was discovered, and it was demonstrated that the more economical sodium acetate trihydrate catalyst was a viable alternative to the more costly anhydrous sodium acetate.

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Density Functional Studies Of The Structure And Bonding In Piano Stool Carbene Complexes, John P. Graham, Robbie Davis Jan 2006

Density Functional Studies Of The Structure And Bonding In Piano Stool Carbene Complexes, John P. Graham, Robbie Davis

Journal of the Arkansas Academy of Science

No abstract provided.

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An Evaluation Of The Effects Of Dc's Voucher Program On Public School Achievement And Racial Integration After One Year, Jay P. Greene, Marcus A. Winters Jan 2006

An Evaluation Of The Effects Of Dc's Voucher Program On Public School Achievement And Racial Integration After One Year, Jay P. Greene, Marcus A. Winters

School Choice Demonstration Project

This study evaluates the initial effect Washington D.C.'s Opportunity Scholarship Program (OPS) on the academic performance of public schools and its effects on the opportunities District students have to attend integrated schools. OPS is a federally sponsored school voucher program that provides vouchers worth up to $7,500 for an estimated 1,800 to 2,000 students in the District of Columbia. Students can use the scholarships to pay tuition at participating private schools in the District. The pilot program is designed to last for 5 years.

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Books And Letters Vol. 20, No. 2, University Libraries, Molly Boyd, Anne Marie Candido, Tom W. Dillard, Juana R. Young, Andrea E. Cantrell, Russell Cothren, J. D. White, Lee Holt Jan 2006

Books And Letters Vol. 20, No. 2, University Libraries, Molly Boyd, Anne Marie Candido, Tom W. Dillard, Juana R. Young, Andrea E. Cantrell, Russell Cothren, J. D. White, Lee Holt

Books and Letters

Forensic Anthropologist Speaks at Mullins Library; Educational Poster Series; Libraries Host International Visitors; Borchard Reception; Expanded Research Commons Brings More Students to Library; Art Exhibits Enliven Student Experience; Processing the Hammerschmidt Papers; Save The Date: Arkansas Architecture Conference; New Head of Library Systems Welcomed; Stay More Booklets Issued, Researcher Publishes Letters from Special Collections; Pi Mu Epsilon Creates Runcinated Dodecaplex; A Note of Thanks!

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Jeanne Clery Disclosure Of Campus Security Policy And Campus Crime Statistics Report, 2004, University Of Arkansas, Fayetteville. Police Department Oct 2005

Jeanne Clery Disclosure Of Campus Security Policy And Campus Crime Statistics Report, 2004, University Of Arkansas, Fayetteville. Police Department

Jeanne Clery Disclosure of Campus Security Policy

No abstract provided.

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Naep 2005 Results, Sarah C. Mckenzie, Gary W. Ritter Oct 2005

Naep 2005 Results, Sarah C. Mckenzie, Gary W. Ritter

Policy Briefs

The National Assessment of Educational Progress (NAEP), also known as “the Nation’s Report Card,” is a national assessment of what students in each state know in various subjects. The Grade 4 and 8 mathematics and reading portions of the NAEP were administered in 2005 and the results were released in mid-October. This brief fact sheet highlights the recent NAEP results and demonstrates, simply put, that the state’s students are gaining ground on the nation according to the NAEP.

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Education Policy News, Fall 2005, University Of Arkansas, Fayetteville. Dept. Of Education Reform. Office For Education Policy Sep 2005

Education Policy News, Fall 2005, University Of Arkansas, Fayetteville. Dept. Of Education Reform. Office For Education Policy

Education Policy News

No abstract provided.

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Research Frontiers, Fall 2005, University Of Arkansas Fayetteville. Office Of University Relations Sep 2005

Research Frontiers, Fall 2005, University Of Arkansas Fayetteville. Office Of University Relations

Research Frontiers

No abstract provided.

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Water Quality Sampling, Analysis And Annual Load Determinations For Tss, Nitrogen And Phosphorus In The Bayou Bartholomew At Garrett Bridge, Ar And Near Portland, Ar, Marc A. Nelson, L. Wade Cash, G. Keith Trost, Jennifer Purtle Jun 2005

Water Quality Sampling, Analysis And Annual Load Determinations For Tss, Nitrogen And Phosphorus In The Bayou Bartholomew At Garrett Bridge, Ar And Near Portland, Ar, Marc A. Nelson, L. Wade Cash, G. Keith Trost, Jennifer Purtle

Arkansas Water Resources Center Technical Reports

Water quality sampling stations were installed at the Bayou Bartholomew at Garrett Bridge, AR and near Portland, AR. These stations are coordinated with USGS gauging stations at the same locations. These stations are instrumented to collect samples at sufficient intervals across the hydrograph to accurately estimate the flux of total suspended solids, nitrogen and phosphorus in the River. Bayou Bartholomew watershed is about 1.08 million acres and is located in the south east corner of the state. The land use in the watershed is mostly in forest and cropland agriculture with some urban area. High turbidity levels and excessive silt …

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