Digital Commons Network^™

Engineering A Dimeric Caspase-9: A Re-Evaluation Of The Induced Proximity Model For Caspase Activation, Yang Chao, Eric N. Shiozaki, Srinivasa M. Srinivasula, Robert Fairman

Biology Faculty Scholarship

No abstract provided.

U.S. Army Corps Of Engineers Omaha District Monthly Drought Report, July 2005

United States Army Corps of Engineers, Omaha District

Drought Monitor Overview

Latest Seasonal Assessment

U.S. Seasonal Drought Outlook

U.S. Drought Monitor

National Drought Summary July 12, 2005

Current Drought Impacts in the United States

Drought Severity Index by Division

Mainstem Reservoir Information

Reservoir Control Center Predictions

Basic Simulation

Lower Basic Simulation

Upper Basic Simulation

Ft. Peck, Montana

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

FY 05 Action Items

Garrison, North Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Boat Ramp Information

Noxious Weeds Overview

Cultural Resources Overview

Other Areas of Interest/Concern

Oahe Assessment

Reservoir Elevation Overview

Water Intake Overview

Access …

U.S. Army Corps Of Engineers Omaha District Monthly Drought Report, November 2005

United States Army Corps of Engineers, Omaha District

Current Conditions

Drought Outlook

Ft. Peck, Montana

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Garrison, North Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Boat Ramp Information

Noxious Weeds Overview

Cultural Resources Overview

Other Areas of Interest/Concern

Oahe, South Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Mainstem Reservoir Information, Weekly Elevation Comparison 3 OCT 2005 through 31 OCT 2005

Mainstem Reservoir Storage Comparison Water Year 2004 vs. Water Year 2005

Ft.Peck, MT

Garrison, ND

Oahe, SD

Wildlife Benefi Ts Of The Wetlands Reserve Program, Charles A. Rewa

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Since its initial authorization in 1990, more than 1.6 million acres of primarily drained or degraded wetlands on agricultural lands have been enrolled in the U.S. Department of Agriculture’s (USDA) Wetlands Reserve Program (WRP). The Natural Resources Conservation Service (NRCS) and its partners are working with landowners to restore these lands to ecologically productive wetland and upland buffer habitats. Numerous studies have documented the value of restored and created wetlands to fish and wildlife resources. However, few objective studies have been completed that document fish and wildlife response to wetlands enrolled in and restored through WRP. Preliminary results of some …

U.S. Army Corps Of Engineers Omaha District Monthly Drought Report, September 2005

United States Army Corps of Engineers, Omaha District

Missouri River Basin Drought Overview

Pre-Settlement Drought

Drought Since 1895

Current Conditions

Drought Outlook

Ft. Peck, Montana

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Garrison, North Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Boat Ramp Information

Noxious Weeds Overview

Cultural Resources Overview

Other Areas of Interest/Concern

Oahe, South Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Mainstem Reservoir Information, Weekly Elevation Comparison 27 JUN 2005 through 31 AUG 2005

Mainstem Reservoir Storage Comparison Water Year 2004 vs. Water Year  2005

Ft. Peck, MT

Garrison, …

Dynamics Of Filament Formation In A Kerr Medium (With Erratum), Martin Centurion, Ye Pu, Mankei Tsang, Demetri Psaltis

Martin Centurion Publications

We have studied the large-scale beam breakup and filamentation of femtosecond pulses in a Kerr medium. We have experimentally monitored the formation of stable light filaments, conical emission, and interactions between filaments. Three major stages lead to the formation of stable light filaments: First the beam breaks up into a pattern of connected lines (constellation), then filaments form on the constellations, and finally the filaments release a fraction of their energy through conical emission. We observed a phase transition to a faster filamentation rate at the onset of conical emission. We attribute this to the interaction of conical emissions with …

Investigation Of Ferroelectricity In Newly Synthesized Nitrile Polymer Systems, Matt Poulsen, Stephen Ducharme, Alexander V. Sorokin, Sahadeva Reddy, James M. Takacs, Y. Wen, Jihee Kim, Shireen Adenwalla

Stephen Ducharme Publications

The ferroelectric and piezoelectric properties of newly synthesized polymer systems have been studied. To date PVDF and its copolymers P(VDF-TrFE) have provided the bulk of the knowledge pertaining to ferroelectricity in polymers. Recently, ultrathin ferroelectric films of P(VDF-TrFE) 70:30 have been fabricated using the Langmuir-Blodgett technique [4]. In this study, various new polymers have been synthesized by chemically altering the PVDF structure. This alteration was performed in order to enhance the amphiphilic nature of the polymer and thus improve the LB film quality and control. Various chemical groups have been used to replace the electropositive hydrogen and electronegative fluorine found …

Virtual Property, Joshua Fairfield

Articles by Maurer Faculty

This article explores three new concepts in property law. First, the article defines an emerging property form - virtual property - that is not intellectual property, but that more efficiently governs rivalrous, persistent, and interconnected online resources. Second, the article demonstrates that the threat to high-value uses of internet resources is not the traditional tragedy of the commons that results in overuse. Rather, the naturally layered nature of the internet leads to overlapping rights of exclusion that cause underuse of internet resources: a tragedy of the anticommons. And finally, the article shows that the common law of property can act …

Press Conference, John Owens

John Owens: Speeches and Appearances

*Here in the Institute of Agriculture and Natural Resources, home to the National Drought Mitigation Center, we often say we are partners with Nebraska. This wonderful three year partnership between the USDA's Risk Management Agency, the National Drought Mitigation Center, and UNL's Department of Computer Science and Engineering to devote more than $7 million in new federal funding to further refine Web tools to help ag producers and others in our country monitor drought impacts and manage its risks is of real value both for our state and our world.

Nebraska Hall Of Agricultural Achievement, John Owens

John Owens: Speeches and Appearances

I am delighted to be present tonight to celebrate the achievements of these wonderful and worthy new additions to the Nebraska Hall of Agricultural Achievement. It's a real treat to have this opportunity to focus on recognizing some very special Nebraskans who are so deserving of their honors. I can think of few experiences more gratifying than those in which we all get to say a heartfelt “well done and thank you” to those people who make significant contributions to the world around them by the way they live their lives and by the places they choose to put their …

Bo Ginn Papers, Zach S. Henderson Library Special Collections

Finding Aids

This collection consists of various political papers to and from Ronald “Bo” Ginn from 1973 to 1983. The collection includes professional correspondence to and from various constituents and organizations, personal correspondence, and audiovisual tapes of Ginn’s life and work. These items contain items of importance for the citizens of Georgia such as, agriculture, government spending, and issues regarding other forms of commerce for Georgia.

Find this collection in the University Libraries' catalog.

Edward A. Abercrombie First-Day Covers And Stamps, Zach S. Henderson Library Special Collections

Finding Aids

This collection consists of Edward A. Abercrombie’s first edition stamp collection. Materials include first-day covers and United States Postage Stamps from 1950-1984. Notable within this collection is a special cover on the last day of operation of the Statesboro Northern Railroad.

Find this collection in the University Libraries' catalog.

Matrix Model Superpotentials And Calabi–Yau Spaces: An A-D-E Classification, Carina Curto

Department of Mathematics: Faculty Publications

We use F. Ferrari’s methods relating matrix models to Calabi-Yau spaces in order to explain Intriligator and Wecht’s ADE classification of N = 1 superconformal theories which arise as RG fixed points of N = 1 SQCD theories with adjoints. The connection between matrix models and N = 1 gauge theories can be seen as evidence for the Dijkgraaf–Vafa conjecture. We find that ADE superpotentials in the Intriligator–Wecht classification exactly match matrix model superpotentials obtained from Calabi-Yau’s with corresponding ADE singularities. Moreover, in the additional Ô, Â, Dˆ and Ê cases we find new singular geometries. These ‘hat’ geometries are …

Performance Of Quality Assurance Procedures For An Applied Climate Information System, K. G. Hubbard, S. Goddard, Bill Sorensen, N. Wells, Thomas Osugi

Department of Earth and Atmospheric Sciences: Faculty Publications

Valid data are required to make climate assessments and to make climate-related decisions. The objective of this paper is threefold: to introduce an explicit treatment of Type I and Type II errors in evaluating the performance of quality assurance procedures, to illustrate a quality control approach that allows tailoring to regions and subregions, and to introduce a new spatial regression test. Threshold testing, step change, persistence, and spatial regression were included in a test of three decades of temperature and precipitation data at six weather stations representing different climate regimes. The magnitude of thresholds was addressed in terms of the …

From International Sanitary Conventions To Global Health Security: The New International Health Regulations, David P. Fidler

Articles by Maurer Faculty

In May 2005, the World Health Organization adopted the new International Health Regulations (IHR), which constitute one of the most radical and far-reaching changes to international law on public health since the beginning of international health cooperation in the mid-nineteenth century. This article comprehensively analyses the new IHR by examining the history of international law on infectious disease control, the IHR revision process, the substantive changes contained in the new IHR and concerns regarding the future of the new IHR. The article demonstrates why the new IHR constitute a seminal event in the relationship between international law and public health …

The Asian Century: Implications For International Law, David P. Fidler

Articles by Maurer Faculty

Predictions that the 21st century will be the "Asian century" have sparked analytical interest from many disciplines but not international law. This article focuses on what implications "Asia rising" may have for international law in the 21st century. The article begins by looking at the 19th and 20th centuries as the European and American centuries respectively to assess the impact these centuries made on international law. The article then analyses possible meanings for an Asian century and frames such a century's implications for international law around the concept of a "Concert of Asia". The article argues that, through a "Concert …

Addressing Imperfections In The Tax System: Procedural Or Substantive Reform?, Leandra Lederman, Stephen W. Mazza

Articles by Maurer Faculty

In his book "Perfectly Legal: The Covert Campaign to Rig Our Tax System to Benefit the Super Rich - and Cheat Everybody Else", David Cay Johnston, the Pulitzer Prize-winning reporter for the New York Times, covers a wide array of topics, including some that are quite complex, in a very readable way. The federal income tax system generally and tax compliance in particular are important focuses of the book, but the theme that implicitly connects chapters that otherwise appear unrelated is a variety of aspects of income inequality.

Although "Perfectly Legal" does not make a clear case that politicians and …

Recent Records Of Formerly Extirpated Carnivores In Nebraska, Justin D. Hoffman, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

By the early 1900's, several large carnivores had been extirpated from Nebraska as a result of unrestricted hunting and trapping by early European settlers. Recently, there have been several confirmed records of carnivores that were once extirpated from Nebraska. In our study, we present new data for five species that recently were documented in Nebraska: Lynx canadensis, Ursus americanus, Canis lupus, Puma concolor, and Lontra canadensis. Restoration programs and legal protection afforded to these species in Nebraska and in adjacent states have allowed population numbers to increase. Because of the increase in populations of these …

German Legal Culture And The Globalization Of Competition Law: A Historical Perspective On The Expansion Of Private Antitrust Enforcement, Hannah Buxbaum

Articles by Maurer Faculty

One trend developing in international competition regulation is the expansion of private antitrust litigation as an enforcement mechanism. This article examines Germany's response to that trend, investigating the extent to which it has roots in the country's legal and economic history. It begins by tracing the development of German competition law post-World War II - focusing in particular on the patterns of pressure and resistance within the transatlantic relationship - and identifies the emergence of an indigenous regulatory enforcement philosophy. It then turns to two recent developments that indicate the expansion of private enforcement in ways relevant to Germany's domestic …

A Heuristic With Bounded Guarantee To Compute Diverse Paths Under Shared Protection In Wdm Mesh Networks, Ajay Todimala, Byrav Ramamurthy

School of Computing: Conference and Workshop Papers

Establishing a fault-tolerant connection in a network involves computation of diverse working and protection paths. The Shared Risk Link Group (SRLG) [1] concept is used to model several types of failure conditions such as link, node, fiber conduit, etc. In this work we focus on the problem of computing optimal SRLG/link diverse paths under shared protection. Shared protection technique improves network resource utilization by allowing protection paths of multiple connections to share resources. In this work we propose an iterative heuristic for computing SRLG/link diverse paths. We present a method to calculate a quantitative measure that provides a bounded guarantee …

Technical Reports (1999 - 2005)

School of Computing: Technical Reports

Authors of Technical Reports (1999-2005):
Choueiry, Berthe
Elbaum, Sebastian
Goddard, Steve
Henninger, Scott
Jiang, Hong
Rothermel, Gregg
Scott, Stephen
Seth, Sharad
Soh, Leen-Kiat
Variyam, Vinodchandran

An Empirical Study Of Fault Localization For End-User Programmers, Joseph R. Ruthruff, Margaret Burnett, Gregg Rothermel

School of Computing: Conference and Workshop Papers

End users develop more software than any other group of programmers, using software authoring devices such as e-mail filtering editors, by-demonstration macro builders, and spreadsheet environments. Despite this, there has been little research on finding ways to help these programmers with the dependability of their software. We have been addressing this problem in several ways, one of which includes supporting end-user debugging activities through fault localization techniques. This paper presents the results of an empirical study conducted in an end-user programming environment to examine the impact of two separate factors in fault localization techniques that affect technique effectiveness. Our results …

A Controlled Experiment Assessing Test Case Prioritization Techniques Via Mutation Faults, Hyunsook Do, Gregg Rothermel

School of Computing: Conference and Workshop Papers

Regression testing is an important part of software maintenance, but it can also be very expensive. To reduce this expense, software testers may prioritize their test cases so that those that are more important are run earlier in the regression testing process. Previous work has shown that prioritization can improve a test suite’s rate of fault detection, but the assessment of prioritization techniques has been limited to hand-seeded faults, primarily due to the belief that such faults are more realistic than automatically generated (mutation) faults. A recent empirical study, however, suggests that mutation faults can be representative of real faults. …

Helping End-Users “Engineer” Dependable Web Applications, Sebastian Elbaum, Kalyan-Ram Chilakamarri, Bhuvana Gopal, Gregg Rothermel

School of Computing: Conference and Workshop Papers

End-user programmers are increasingly relying on web authoring environments to create web applications. Although often consisting primarily of web pages, such applications are increasingly going further, harnessing the content available on the web through “programs” that query other web applications for information to drive other tasks. Unfortunately, errors can be pervasive in web applications, impacting their dependability. This paper reports the results of an exploratory study of end-user web application developers, performed with the aim of exposing prevalent classes of errors. The results suggest that end-users struggle the most with the identification and manipulation of variables when structuring requests to …

Combined Asterism And Sphere Decoder For Large Asymmetric Mimo Systems, Phillip Conder, Tadeusz Wysocki

Department of Electrical and Computer Engineering: Faculty Publications (to 2015)

The area of Multiple Input Multiple Output (MIMO) communications systems has received enormous attention recently as they can provide a roughly linear increase in data rate by using Multiple Transmit and Receive antennas. The optimal detection strategy for a MIMO receiver is to perform a Maximum-Likelihood (ML) search over all possible transmitted symbol combinations which has an exponential complexity when the constellation size of number of transmit antennas increase. Sphere and Asterism decoders are schemes that achieved ML performance for MIMO systems, but both have shortcomings in computational complexity, Sphere decoding when n_t > n_r and Asterism when n …

Generalized Williamson And Wallis-Whiteman Constructions For Improved Square Order-8 Cois Stbc, Le Chung Tran, Tadeusz Wysocki, Jennifer Seberry, Alfred Mertins, Sarah A. Spence

Department of Electrical and Computer Engineering: Faculty Publications (to 2015)

Constructions of square, maximum rate Complex Orthogonal Space-Time Block Codes (CO STBCs) are well known, however codes constructed via the known methods include numerous zeros, which impede their practical implementation. By modifying the Williamson and Wallis-Whiteman arrays to apply to complex matrices, we propose two methods of construction of square, order-4n CO STBCs from square, order-n codes which satisfy certain properties. Applying the proposed methods, we construct square, maximum rate, order-8 CO STBCs with no zeros, such that the transmitted symbols equally disperse through transmit antennas. Those codes, referred to as the improved square …

Profiling Deployed Software: Strategic Probe Placement, Madeline Diep, Sebastian Elbaum, Myra B. Cohen

School of Computing: Technical Reports

Profiling deployed software provides valuable insights for quality improvement activities. The probes required for profiling, however, can cause an unacceptable performance overhead for users. In previous work we have shown that significant overhead reduction can be achieved, with limited information loss, through the distribution of probes across deployed instances. However, existing strategies for probe distribution do not account for several relevant factors: acceptable overheads may vary, the distributions to be deployed may be limited, profiled events may have different likelihoods, and the user pool composition may be unknown. This paper evaluates strategies for probe distribution while manipulating these factors through …

A Generalized Algorithm For The Generation Of Correlated Rayleigh Fading Envelopes, Le Chung Tran, Tadeusz Wysocki, Jennifer Seberry, Alfred Mertins

Department of Electrical and Computer Engineering: Faculty Publications (to 2015)

Although generation of correlated Rayleigh fading envelopes has been intensively considered in the literature, all conventional methods have their own shortcomings, which seriously impede their applicability. In this paper, a very general, straightforward algorithm for generation of an arbitrary number of Rayleigh envelopes with any desired, equal or unequal power, in wireless channels either with or without Doppler frequency shifts, is proposed. The proposed algorithm can be applied in case of spatial correlation, such as with antenna arrays in Multiple Input Multiple Output (MIMO) systems, or spectral correlation between the random processes like in Orthogonal Frequency Division Multiplexing (OFDM) systems. …

Disseminating Usability Design Knowledge Through Ontology-Based Pattern Languages, Scott Henninger, Padmapriya Ashokkumar

School of Computing: Technical Reports

Usability patterns represent knowledge about known ways to design graphical user interfaces that are usable and meet the needs and expectations of users. There is currently a plethora of usability patterns published in books, private repositories and the World-Wide Web. The dominance of pattern discovery efforts has neglected the emerging need to organize the patterns so they can become a proactive resource for developing interfaces. This paper presents an approach using Semantic Web concepts that turns informal patterns into formal representations capable of supporting systematic design methods. Through this method, loosely coupled pattern collections can be turned into strongly coupled …

Real-Time Divisible Load Scheduling For Cluster Computing, Xuan Lin, Ying Lu, Jitender S. Deogun, Steve Goddard

School of Computing: Technical Reports

Cluster Computing has emerged as a new paradigm for solving large-scale problems. To enhance QoS and provide performance guarantees in cluster computing environments, various workload models and real-time scheduling algorithms have been investigated. The divisible load model, propagated by divisible load theory, models computations that can be arbitrarily divided into independent pieces and provides a good approximation of many real-world applications. However, researchers have not yet investigated the problem of providing performance guarantees to divisible load applications. Two contributions are made in this paper: (1) divisible load theory is extended to compute the minimum number of processors required to meet …