Digital Commons Network^™

Potential, Implications And Solutions Regarding The Use Of Rendered Animal Fats In Aquafeeds, Jesse T. Trushenski, Rebecca T. Lochmann

Publications

Problem statement: In the past, aquafeeds were comprised largely of fish meal and fish oil derived from marine reduction fisheries. In addition to being highly palatable and readily digested by cultured fishes, these feedstuffs were historically inexpensive sources of protein, energy and essential nutrients. However, increasing cost and concerns over safety and sustainability have greatly incentivized the transition from fish meal and oil to alternative sources of protein and lipid for aquafeed formulation. Fish oil replacement is proving more difficult than originally anticipated, particularly for marine carnivorous species. Approach: If complete fish oil replacement is not a viable goal for …

Reproductive Biology Of Middle Mississippi River Shovelnose Sturgeon: Insights From Seasonal And Age Variation In Plasma Sex Steroid And Calcium Concentrations, Michael T. Stahl, Gregory Whitledge, Anita M. Kelly

Publications

Shovelnose sturgeon Scaphirhynchus platorynchus are endemic to the Mississippi River drainage and are commercially harvested for roe in several states. Status of shovelnose sturgeon populations throughout much of its range is unknown or declining; Mississippi River stocks are experiencing recruitment overfishing and may be at risk of collapse. Restoration of shovelnose sturgeon populations will require additional information on their reproductive biology, including age at maturity and reproductive status and cycles. The objectives of this study were to determine the effects of reproductive stage, fish age, and season on plasma 17-β estradiol (E₂) and calcium (Ca²⁺) concentrations …

Gibbs Sampling For 2pno Multi-Unidimensional Item Response Theory Models (Fortran), Yanyan Sheng, Todd C. Headrick

Publications

A Fortran 77 subroutine is provided for implementing the Gibbs sampling procedure to a multiunidimensional IRT model for binary item response data with the choice of uniform and normal prior distributions for item parameters. In addition to posterior estimates of the model parameters and their Monte Carlo standard errors, the algorithm also estimates the correlations between distinct latent traits.The subroutine requires the user to have access to the IMSL library.

Living In A Battleground: Presidential Campaigns And Fundamental Predictors Of Vote Choice, Scott D. Mcclurg, Thomas M. Holbrook

Publications

Little evidence links the strategic decisions of campaigns to individual-level voting behavior. Yet for campaigns to matter in the way that experts argue, exposure to campaigns must also matter so there should be observable differences in the structure of vote choice between battleground and non-battleground states. Combining presidential campaign data with the Senate Election Study, we show that intense campaigning can activate factors like race, ideology, partisanship, and presidential approval. We find that the campaigns affected different variables in 1988 than in 1992, which we hypothesize is the consequence of campaign messages.

Change Is Here, Eric C. Shoaf

Publications

The article discusses various reports published within the issue including one by Wyoma van Duinkerken and Pixey Anne Mosley about the psychological and emotional impacts of change in workspace configurations, another by Tim Spindler about how improved statistical analysis can provide more precise forecasting of library needs, and one by Marian Fragola, who examines the relationship between professional and paraprofessional staff in the library.

Regulating Interoperability: Lessons From At&T, Microsoft, And Beyond, Philip J. Weiser

Publications

Antitrust law confronted the challenges of regulating interoperability between platforms and applications in both the AT&T and Microsoft cases, but it has yet to mine the series of lessons that can inform how to address this challenge going forward. With the Microsoft consent decree still in place, it may too soon to render a final judgment on the remedy adopted in that case as well as to evaluate more generally whether antitrust law is up to the task of developing the institutional strategies - be it the use of technical committees or reliance on standard setting bodies - for addressing …

Crises, Congress, And Cognitive Biases: A Critical Examination Of Food And Drug Legislation In The United States, Sharon B. Jacobs

Publications

No abstract provided.

An Analysis Of The Intra-Regional Trade In The Middle East And North Africa Region, E. M. Ekanayake, John R. Ledgerwood

Publications

This paper analyzes the intra-regional trade and investment flows in the Middle East and North Africa (MENA) region using an augmented gravity model applied to panel data. The study uses annual trade and investment data for the period 1980-2006. There is a growing awareness among countries in the MENA region regarding the importance of international trade and foreign direct investment for stimulating growth and integrating into the world economy. The research will attempt to achieve the following objectives: (a) analyze the intra-regional trade and investment flows in the MENA region; (b) identify the major determinants of trade and investment flows …

Analysis Of The Supporting Websites For The Use Of Instructional Games In K-12 Settings, Mansureh Kebritchi, Wendi M. Kappers Phd, Atsusi Hirumi, Renee Henry

Publications

This article identifies resources to be included in a website designed to facilitate the integration of instructional games in K-12 settings. Guidelines and supporting components are based on a survey of K-12 educators who are integrating games, an analysis of existing instructional game websites, and summaries of literature on the use of educational software in K-12 settings and teacher technology training. The results indicate that educators face three main challenges when integrating games, including: (a) technical and logistical requirements, (b) curriculum integration, and (c) teacher training. To overcome these challenges, K-12 educators should be provided with: (a) curriculum resources, (b) …

Cycle Equivalence Of Graph Dynamical Systems, Matthew Macauley, Henning S. Mortveit

Publications

Graph dynamical systems (GDSs) generalize concepts such as cellular automata and Boolean networks and can describe a wide range of distributed, nonlinear phenomena. Two GDSs are cycle equivalent if their periodic orbits are isomorphic as directed graphs, which captures the notion of having comparable long-term dynamics. In this paper, we study cycle equivalence of GDSs in which the vertex functions are applied sequentially through an update sequence. The main result is a general characterization of cycle equivalence based on the underlying graph Y and the update sequences. We construct and analyse two graphs C(Y) and D( …

Social Factoring The Numbers With Assisted Reproduction, Bridget J. Crawford, Lolita Buckner Inniss

Publications

In early 2009 the airwaves came alive with sensational stories about Nadya Suleman, the California mother who gave birth to octuplets conceived via assisted reproductive technology. Nadya Suleman and her octuplets are vehicles through which Americans express their anxiety about race, class and gender. Expressions of concern for the health of children, the mother's well-being, the future of reproductive medicine or the financial drain on taxpayers barely conceal deep impulses towards racism, sexism and classism. It is true that the public has had a longstanding fascination with multiple births and with large families. This is evidenced by a long history …

Litigation Discovery Cannot Be Optimal But Could Be Better: The Economics Of Improving Discovery Timing In A Digital Age, Scott A. Moss

Publications

Cases are won and lost in discovery, yet discovery draws little academic attention. Most scholarship focuses on how much discovery to allow, not on how courts decide discovery disputes--which, unlike trials, occur in most cases. The growth of computer data--e-mails, lingering deleted files, and so forth--increased discovery cost, but the new e-discovery rules just reiterate existing cost-benefit proportionality limits that draw broad consensus among litigation scholars and economists. But proportionality rules are impossible to apply effectively; they fail to curb discovery excess yet disallow discovery that meritorious cases need. This Article notes proportionality's flaws but rejects the consensus blaming bad …

The Diverging Meaning Of Good Faith, Mark J. Loewenstein

Publications

This article explores the meaning of "good faith" in the context of corporations and unincorporated entities. The courts, particularly in Delaware, have developed two different approaches. In the corporate arena, the courts are fashioning a notion of good faith that seems to require an examination of director motivations. In the unincorporated arena, good faith has a meaning grounded in contract law. These are two different concepts and reflect the fundamental differences between corporations and unincorporated entities, with the former based on fiduciary duties and the latter on contract. There are, however, indications that this "divergence" is starting to disappear, and …

Telluride's Tale Of Eminent Domain, Home Rule, And Retroactivity, Richard B. Collins

Publications

Telluride, Colorado, won an eminent domain battle with San Diego billionaire Neal Blue, but only after paying his price and his attorney's fees. The town passed a condemnation ordinance by popular initiative to take 572 acres adjacent to the town. The landowner obtained a state statute intended to forbid the town's action. The trial judge held the statute invalid under Colorado's constitutional home rule amendment. Town officials negotiated a compromise with the landowner, but its voters rejected it. The valuation trial was moved to a neighboring county much more favorable to the landowner, and the jury gave him his full …

Using International Dispute Resolution To Address The Compliance Question In International Law, Anna Spain

Publications

A fundamental critique of international law is that it fails to ensure compliance and, thus, has limited influence on state behavior. Existing compliance theories consider how interests, norms and legal process impact states. Within the legal process school, theories either narrowly define process as methods that achieve a legal aim or broadly consider diplomatic activities without connecting them to the structural elements of process. Thus, despite the prolific scholarship in this area, understanding of how an international dispute resolution process, such as the Six-Party Talks, influences state behavior, such as North Korea’s actions toward nuclear disarmament, remains limited.

To address …

In The Sweat Box: A Historical Perspective On The Detention Of Material Witnesses, Carolyn B. Ramsey

Publications

After the September 11 terrorist attacks, the Justice Department detained scores of allegedly suspicious persons under a federal material witness statute--a tactic that provoked a great deal of controversy. Most critics assume that the abuse of material witness laws is a new development. Yet, rather than being transformed by the War on Terror, the detention of material witnesses is a coercive strategy that police officers across the nation have used since the nineteenth century to build cases against suspects. Fears of extraordinary violence or social breakdown played at most an indirect role in its advent and growth. Rather, it has …

Constraining Public Employee Speech: Government's Control Of Its Workers' Speech To Protect Its Own Expression, Helen Norton

Publications

This Article identifies a key doctrinal shift in courts' treatment of public employees' First Amendment claims--a shift that imperils the public's interest in transparent government as well as the free speech rights of more than twenty million government workers. In the past, courts interpreted the First Amendment to permit governmental discipline of public employee speech on matters of public interest only when such speech undermined the government employer's interest in efficiently providing public services. In contrast, courts now increasingly focus on--and defer to--government's claim to control its workers' expression to protect its own speech.

More specifically, courts increasingly permit government …

Created In Its Image: The Race Analogy, Gay Identity, And Gay Litigation In The 1950s-1970s, Craig J. Konnoth

Publications

Existing accounts of early gay rights litigation largely focus on how the suppression and liberation of gay identity affected early activism. This Note helps complicate these dynamics, arguing that gay identity was not just suppressed and then liberated, but substantially transformed by activist efforts during this period, and that this transformation fundamentally affected the nature of gay activism. Gay organizers in the 1950s and 1960s moved from avoiding identity-based claims to analogizing gays to African-Americans. By transforming themselves in the image of a successful black civil rights minority, activists attempted to win over skeptical courts in a period when equal …

The Internet's Public Domain: Access To Government Information On The Internet, Susan Nevelow Mart

Publications

This article surveys the types and amounts of information that have been removed from the Internet since September 11th. Information has been removed in the name of national security as well as for reasons of seeming political expediency. After discussing the bases of some of the rationales for removing the information, and the legal underpinnings of continued access, the article suggests several forms of advocacy that could be used to return the information to the public's domain.

Using Sunflower Plots And Classification Trees To Study Typeface Legibility, Edgar C. Merkle, Barbara S. Chaparro

Publications

This article describes the application of sunflower plots and classification trees to the study of onscreen typeface legibility. The two methods are useful for describing high-dimensional data in an intuitive manner, which is crucial for interacting with both the typographers who design the typefaces and the practitioners who must make decisions about which typeface to use for specific applications. Furthermore, classification trees help us make specific recommendations for how much of a character attribute is “enough” to make it legible. We present examples of sunflower plots and classification trees using data from a recent typeface legibility experiment, and we present …

Book Review: Cyber Security And Global Information Assurance: Threat Analysis And Response Solutions, Gary C. Kessler

Publications

This document is Dr. Kessler's review of Cyber Security and Global Information Assurance: Threat Analysis and Response Solutions, edited by Kenneth J. Knapp. Information Science Reference, 2009. ISBN: 978-1-60566-326-5.

Assuring Access: One Library's Journey From Print To Electronic Only Subscriptions, Aparna Zambare, Anne Marie Casey, John Fierst, David Ginsburg, Judith O'Dell, Timothy Peters

Publications

The migration of library collections from print to electronic formats has been a priority for many institutions during the last ten years and has played a key role in the transformation of the modern academic library. Not surprisingly, this process has been labor-intensive, costly, and occasionally frustrating to those involved in the transformation. This article recounts the challenges that the Central Michigan University Libraries faced and the measures it established to overcome these challenges as it undertook the process of successfully moving from a print-based to a predominately electronic only subscription collection.

Student Approaches To Learning: An Exploratory Study, Leila Halawi, Richard Mccarthy, Nenna Muoghalu

Publications

In this study, the partial least square approach (PLS) is applied to investigate students’ approaches to learning in the framework of online or hybrid courses. A total of 140 valid responses from students who have finished or are currently enrolled in at least one MIS online or hybrid course were analyzed using a structural equation model and the results are presented herein.

The Successful Expatriate Leader In China, Matthew P. Earnhardt

Publications

With cheap labor, the world's largest work force, and the United States as one of its principal trading partners, China offers boundless opportunities to global corporations. The economic advantages of operating in China are great; however, the foreign business community faces unique challenges there, as qualified Chinese business leaders are virtually non-existent within the country's corporate world.

In Defense Of Property, Kristen A. Carpenter, Sonia K. Katyal, Angela R. Riley

Publications

This Article responds to an emerging view, in scholarship and popular society, that it is normatively undesirable to employ property law as a means of protecting indigenous cultural heritage. Recent critiques suggest that propertizing culture impedes the free flow of ideas, speech, and perhaps culture itself. In our view, these critiques arise largely because commentators associate "property" with a narrow model of individual ownership that reflects neither the substance of indigenous cultural property claims nor major theoretical developments in the broader field of property law. Thus, departing from the individual rights paradigm, our Article situates indigenous cultural property claims, particularly …

Invited Article: Data Analysis Of The Floating Potential Measurement Unit Aboard The International Space Station, Aroh Barjatya, Charles M. Swenson, Donald C. Thompson, Kenneth H. Wright

Publications

We present data from the Floating Potential Measurement Unit (FPMU) that is deployed on the starboard truss of the International Space Station. The FPMU is a suite of instruments capable of redundant measurements of various plasma parameters. The instrument suite consists of a floating potential probe, a wide-sweeping spherical Langmuir probe, a narrow-sweeping cylindrical Langmuir probe, and a plasma impedance probe. This paper gives a brief overview of the instrumentation and the received data quality, and then presents the algorithm used to reduce I-V curves to plasma parameters. Several hours of data are presented from August 5, 2006 and March …

On Nonlinear Generalizations Of The Kdv And Bbm Equations From Long Range Water Wave Theory, Timothy A. Smith

Publications

A generalization of the famous KdV and BBM equation are considered with a new nonlinear term. Sufficient conditions of solvability, existence and uniqueness are established.

Singular Superposition/Boundary Element Method For Reconstruction Of Multi-Dimensional Heat Flux Distributions With Application To Film Cooling Holes, Mahmood Silieti, Eduardo Divo, Alain J. Kassab

Publications

A hybrid singularity superposition/boundary element-based inverse problem method for the reconstruction of multi-dimensional heat flux distributions is developed. Cauchy conditions are imposed at exposed surfaces that are readily reached for measurements while convective boundary conditions are unknown at surfaces that are not amenable to measurements such as the walls of the cooling holes. The purpose of the inverse analysis is to determine the heat flux distribution along cooling hole surfaces. This is accomplished in an iterative process by distributing a set of singularities (sinks) inside the physical boundaries of the cooling hole (usually along cooling hole centerline) with a given …

Big, Bad, Black And Gay: Overcoming The Shackles Of The Socially Constructed Black Masculine, Scott Skinner-Thompson

Publications

No abstract provided.

"Colonial Cousins: Explaining India And Canada’S Unwritten Constitutional Principles", Vivek Krishnamurthy

Publications

No abstract provided.