Digital Commons Network^™

Designing Educational Games For Activity-Goal Alignment, Brett E. Shelton

Instructional Technology and Learning Sciences Faculty Publications

What indeed, can we expect from our newest trend in education, implementing moving pictures and conversations with instruction through simulation games? Lewis Carroll's familiar narratives Alice's Adventures in Wonderland and Alice Through the Looking Glass provide helpful imagery for many of the queries, explorations and assumptions we currently make about this latest Wonderland of academia. So what are the goals for the designers and researchers of educational games, or perhaps more importantly, what should be the goals?

A Hike Through A Post-Ejb J2ee Web Application Architecture, Part Iii,, Konstantin Laufer, George K. Thiruvathukal, Benjamin Gonzalez

Computer Science: Faculty Publications and Other Works

By incorporating automated component, integration, and acceptance testing into the various tiers of a lightweight lava 2 Enterprise Edition (J2EE) Web application architecture, developers can shorten the development cycle and increase the quality of their work.

An Analysis Of Sexual Dimorphism In The Human Face, Ashok Samal, Vanitha Subramani, David B. Marx

School of Computing: Faculty Publications

Abstract Human beings can distinguish between a male and a female face without much difficulty. The science of recognizing and differentiating different faces by humans is not completely understood and is still under research. Sexual dimorphism is common in humans and indeed in other species of animals as well. Significant differences between males and females exist in many aspects like size, color, body shapes, and weight. In this research, we characterize and analyze the sexual dimorphism in the human face as a function of age and of face features. Features are grouped into six categories: head, eyes, orbits, nose, lips, …

Four Novel Co-Precipitation Procedures For The Synthesis Of Lanthanum-Strontium Manganites, Vuk Uskoković, Miha Drofenik

Pharmacy Faculty Articles and Research

Lanthanum-strontium manganites were synthesized using co-precipitation method with a reverse micellar microemulsion. Either oxalic acid, sodium hydroxide or tetramethylammonium hydroxide was used for the precipitation of precursor cations in a form that was subsequently calcined under various conditions in order to obtain perovskite manganite phase. Correlations between the properties of the synthesized powder and the calcination conditions have been put forth. The properties of the microemulsion-assisted synthesized material were compared with the samples prepared by following the supposedly similar chemical recombinations in bulk solutions, with an aim to challenge the fact that microemulsions in general have only templating effects on …

Advent Devotional Guide 2007, Belmont University

Advent Devotional Guides

No abstract provided.

Simulations Of Phytoplankton Species And Carbon Production In The Equatorial Pacific Ocean 2. Effects Of Physical And Biogeochemical Processes, Baris Salihoglu, Eileen E. Hofmann

CCPO Publications

A one-dimensional multi-component lower trophic level ecosystem model that includes detailed algal physiology is used to investigate the response of phytoplankton community and carbon production and export to variations in physical and biochemical processes in the Cold Tongue region of the equatorial Pacific Ocean at ON, 140W. Results show that high-frequency variability in vertical advection and temperature is an important mechanism driving the carbon export. Filtering out low frequency physical forcing results in a 30% increase in primary production and dominance of high-light adapted Prochlorococcus and autotrophic eukaryotes. Sensitivity studies show that iron availability is the primary control on carbon …

Current Status And Long-Term Trends In Water Quality And Living Resources In The Virginia Tributaries And Chesapeake Bay Mainstem From 1985 Through 2005, Daniel M. Dauer, Harold G. Marshall, John R. Donat, Michael F. Lane, Suzanne C. Doughten, Frederick A. Hoffman

Status and Trends for Virginia Chesapeake Bay

A marked decline in the water quality of the Chesapeake Bay has occurred over the past several decades. The disappearance of submerged aquatic vegetation in certain regions of the Bay, declines in the abundance of some commercially and recreationally important species, increases in the incidence of low dissolved oxygen events, changes in the Bay's food web, and other ecological problems have been related to the deteriorating water quality. The results of concentrated research efforts in the late 1970s and early 1980s stimulated the establishment of Federal and state directives to better manage the Chesapeake Bay watershed. By way of the …

Integrating The Humanities And Sciences: The Human Journey: Sacred Heart University's Common Core, Michelle Loris Ph.D., Nicole Cauvin, Kathryn Lafontana

English Faculty Publications

One way to respond to the crisis in the humanities is to integrate learning for our students. In fact one of higher education's greatest challenges today is for faculty to develop ways to integrate knowledge and learning across the disiciplines. This essay describes a common core curriculum, THE HUMAN JOURNEY, which engages students in an integrated, common, and coherent understanding of the humanities,arts, and sciences, and the Catholic intellectual tradition framed by four enduring questions of human meaning and value. THE HUMAN JOURNEY is a five course sequence including literature, history, the social and natural sciences, and religious studies and …

Conditional Logit, Iia, And Alternatives For Estimating Models Of Interstate Migration, Christiadi, Brian Cushing

Regional Research Institute Working Papers

Many researchers have used the conditional logit model to examine migration. One common objection to this model is that it carries the independence from irrelevant alternatives (IIA) assumption, which may be too restrictive. This study compares the conditional logit with models that partially relax (nested logit) or fully relax (mixed logit) the IIA assumption. We will begin to learn whether assuming IIA holds poses serious estimation problems for migration modeling. Given the substantial computational cost of the more complex models, a finding that a well-specified, but computationally much simpler, conditional logit model may suffice would be useful.

Agricultural Land Development In The Northeast United States: A Spatial Simultaneous Growth Equilibrium Model, Yohannes G. Hailu, Cheryl Brown

Regional Research Institute Working Papers

This study introduces a spatial simultaneous growth model to examine the impact of regional growth on agricultural land development. County level data on growth factors, land values, farmland density and a set of exogenous variables are used from 12 Northeast states. Results indicate that regional growth, accessibility, and growth in neighboring counties may negatively impact agricultural land density. Farmland protection policies did not have a significant impact in reducing agricultural land development. Based on these results, cross-county and cross-state land use policy coordination may provide better land management outcomes than a county-level focus that disregards growth and land development interdependences.

Issues In The Implementation Of Interregional Commodity By Industry Input-Output Models, Randall Jackson, Walter R. Schwarm

Regional Research Institute Working Papers

A number of procedures for generating interregional social accounting matrices have been developed recently (Canning and Wang 2005, Robinson and Liu 2006, Jackson et al. 2006, Lindall, Olson and Alward 2006). While each approach shares the fundamental structure of the resulting accounting framework, very little attention has been devoted to the use of these accounts in impacts assessment application. This paper presents the common framework for organization of the data, addresses a number of issues surrounding such applications and demonstrates the implications of adopting different assumptions.

Late Cretaceous To Paleocene Metamorphism And Magmatism In The Funeral Mountains Metamorphic Core Complex, Death Valley, California, Chris G. Mattinson, Joseph P. Colgan, James R. Metcalf, Elizabeth L. Miller, Joseph L. Wooden

All Faculty Scholarship for the College of the Sciences

Amphibolite-facies Proterozoic metasedimentary rocks below the low-angle Cenozoic Boundary Canyon Detachment record deep crustal processes related to Mesozoic crustal thickening and subsequent extension. A 91.5 ± 1.4 Ma Th-Pb SHRIMP-RG (sensitive high-resolution ion microprobe–reverse geometry) monazite age from garnet-kyanite-staurolite schist constrains the age of prograde metamorphism in the lower plate. Between the Boundary Canyon Detachment and the structurally deeper, subparallel Monarch Spring fault, prograde metamorphic fabrics are overprinted by a pervasive greenschist-facies retrogression, high-strain subhorizontal mylonitic foliation, and a prominent WNW-ESE stretching lineation parallel to corrugations on the Boundary Canyon Detachment. Granitic pegmatite dikes are deformed, rotated into parallelism, and …

When Languages Die: The Extinction Of The World's Languages And The Erosion Of Human Knowledge, K. David Harrison

Linguistics Faculty Works

In When Languages Die, K. David Harrison illustrates the individual face of language loss, as well as its global scale. Languages are the accretion of thousands of years of a people's science and art - from observations of ecological patterns to creation myths. The author shows that the disappearance of a language is a loss not only for the community of speakers itself but also for our common human knowledge of mathematics, biology, geography, philosophy, agriculture, and linguistics. In this century, we face a massive erosion of the human knowledge base. The global abandonment of indigenous languages will bring a …

Projectional Entropy In Higher Dimensional Shifts Of Finite Type, Aimee S. A. Johnson, S. Kass, K. M. Madden

Mathematics & Statistics Faculty Works

Any higher dimensional shift space (X, ℤᵈ) contains many lower dimensional shift spaces obtained by projection onto r-dimensional sublattices L of ℤᵈ where r < d. We show here that any projectional entropy is bounded below by the ℤᵈ entropy and, in the case of certain shifts of finite type satisfying a mixing condition, equality is achieved if and only if the shift of finite type is the infinite product of a lower dimensional projection.

Periodic Solution To The Time-Inhomogeneous Multi-Server Poisson Queue, Barbara Haas Margolius

Mathematics and Statistics Faculty Publications

We derive the periodic family of asymptotic distributions and the periodic moments for number in the queue for the multi-server queue with Poisson arrivals and exponential service for time-varying periodic arrival and departure rates, and time-varying periodic number of servers. The method is a straight-forward application of generating functions.

Ethnic Differentials In Parental Health Seeking For Childhood Illness In Vietnam, Bussarawan Teerawichitchainan, James F. Phillips

Poverty, Gender, and Youth

The recent introduction of user fees for Vietnam’s primary healthcare services has generated concern that economic policies may adversely affect health-seeking behavior and health outcomes of the poor, particularly among impoverished families who are members of socially marginalized minority groups. This Population Council working paper examines this debate by analyzing parental recall of illness and care-seeking for sick children under age 5 recorded by the 2001–02 Vietnam National Health Survey. Ethnic differentials are evident in all geographic and income levels, although adverse effects of minority status are most pronounced among poor households in remote areas. Results suggest that social equity …

Some Transitivity Results For Torsion Abelian Groups, Brendan Goldsmith, Lutz Strungmann

Articles

We introduce a new class of fully transitive and transitive Abelian p-groups and study the new concept of weak transitivity which is the missing link between full transitivity and transitivity.

Cover And Contents

Turkish Journal of Mathematics

No abstract provided.

Cover And Contents

Turkish Journal of Mathematics

No abstract provided.

Cover And Contents

Turkish Journal of Mathematics

No abstract provided.

Cover And Contents

Turkish Journal of Mathematics

No abstract provided.

Cover And Contents

Turkish Journal of Mathematics

No abstract provided.

2007 Lynn University Men's Baseball Media Guide, Lynn University Athletics

Athletics Media Guides

The 2007 Lynn University Baseball Media Guide is a product of the Lynn University Sports Information Office.

The Wright Message, 2007, University Of Northern Iowa. Department Of Mathematics.

The Wright Message

Inside this issue:

-- Dear Department Alumni and Friends
-- 2007 - 2008 Tenure or Tenure-Track Faculty
-- New Faces in the Mathematics Department
-- Faculty Notes
-- Alumni Survey Conducted
-- Actuarial Program Thrives
-- Board of Regents Collaborative Mathematics and Science Initiative
-- TEAM News
-- DoDEA/UNI Project
-- Online Course Development
-- Math Day at UNI
-- First Millar Scholarship Awarded
-- In Memory of Paul Trafton
-- Major Gifts to the Department

Habitat Use, Movements, And Survival Of Radio-Marked Female Mallards In The Lower Mississippi Alluvial Valley, Bruce Edward Davis

LSU Master's Theses

Mallard (Anas platyrhynhcos) populations in the Lower Mississippi Alluvial Valley (LMAV) historically averaged 1.6 million and represented the largest concentrations of wintering mallards in North America. Effective management of this wintering population requires current information on use of habitats, movements, and survival of female mallards. I used radio-telemetry techniques to assess these parameters during winters 2004-2005 and 2005-2006. Radio-marked female mallards used forested wetland habitats extensively during diurnal and nocturnal sampling periods. Proportional use of habitats varied inconsistently among time periods defined by hunting seasons and winters. Proportional use of forested wetlands ranged from 0.464 to 0.816 and from 0.280 …

Laboratory Evaluation Of Dunaliella Tertiolecta As A Candidate Algal Species For Tertiary Wastewater Treatment Of Nitrogen And Phosphorus-Laden Effluents Impacting Marine Environments, Ashley Juanika Belle

LSU Master's Theses

Dunaliella tertiolecta was evaluated to determine the effectiveness of utilizing the algal species to reduce the nutrient load of saline wastewater during tertiary treatment. Nutrient uptake studies performed using f/2-Si medium illustrated that Dunaliella tertiolecta favored phosphate uptake over nitrate-nitrogen. Over a 7-day observational period, total phosphorus concentration was reduced by over 97% and the kinetic rate of uptake observed was approximately 0.5 - 1 mg/L/day. Daily nitrate-nitrogen concentrations were highly variable and a model could not be determined to predict uptake behavior. In heavily concentrated nutrient loads, the algae still favored phosphate uptake. However as the nutrient load increased …

The Use Of Stable Isotopes To Determine The Ratio Of Resident To Migrant King Rails In Southern Louisiana And Texas, Marie Perkins

LSU Master's Theses

Over the past 30 years, the king rail (Rallus elegans) has purportedly declined precipitously throughout its range, with the most severe declines seen in the migratory populations. King rails, however, are considered a game species in Louisiana and Texas, thus, it is important to determine what proportion of king rails wintering there are migratory. This is complicated because there is no reliable method to distinguish between king and clapper rails and few studies have attempted to capture wintering rails. The objectives of this study were to: 1) Determine the best method for capturing wintering rails; 2) Determine if morphometric measurements …

Accuracy Assessment Of Individually Calibrated Journey-To-Crime Geographic Profiling Models, Tania Pal

LSU Master's Theses

Technological advances are fundamental to the development of spatial analysis tools and methodologies available and used within the criminal investigative process. This research focuses on one such methodology for serial crime analysis: Journey-to-Crime (JTC) Geographic Profiling (GP). JTC or the study of the travel behavior between an offender’s residence to and from the crime scene has been a subject of study within criminology for many years. GP, based on such travel behavior, is a spatial analysis and decision support tool that is used by law enforcement agencies to determine or predict the likely location of a serial offender’s residence or …

Differential Space Time Modulation And Demodulation For Time Varying Multiple Input Multiple Output Channels, Chetan Neginhal Chitnis

LSU Master's Theses

Over the last decade there has been considerable interest in wireless communication using multiple transmit and receive antennas. Several literatures exists that show that these multiple link support very high data rates with low error probabilities when the channel state information is available at the receiver. However when multiple antennas are employed or when the mobile environments change rapidly, it is not always possible to have apriori knowledge of the channel state matrices which calls for Differential Space-Time modulation techniques. Differential modulation is used in conjunction with Unitary Space-Time codes to evaluate their performance over time varying channels. Jakes model …

Disturbance Effects On Nekton Communities Of Seagrasses And Bare Substrates In Biloxi Marsh, Louisiana, Jamie Lynn Maiaro

LSU Master's Theses

With marshes deteriorating rapidly across the Louisiana coast, the role of seagrasses in sustaining fisheries has come into question. Seagrasses are known to shelter small fish from larger predators. Seagrasses also act as a foraging ground for commercially important species, including spotted seatrout. Thirty samples, fifteen from seagrass habitats and fifteen from bare substrate habitats, were collected inside Biloxi Marsh using a drop sampler in May 2005. After the passage of Hurricanes Cindy and Katrina on July 6, 2005 and August 29, 2005, respectively, the seagrasses in Biloxi Marsh were either uprooted, buried, or both. The May 2005 sites were …