Digital Commons Network^™

A 20-Year Plan For Hunter/Angler Recruitment, Development And Retention In Nebraska, Mark Pinkerton, Ron Stave, Mick Jensen, James Ziebarth, Jerrod Burke, Lynn Berggren, George Hall, Kent Forney

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

Hunting and fishing are important parts of Nebraska’s rich heritage. These time-honored outdoor pursuits are important to overall lifestyle, well-being and natural resources of the citizens of Nebraska. The North American Model for Conservation was based primarily on the activism from our nation’s hunters and anglers. Their role helped develop and instill the seven basic premises of the model: Wildlife is to be held in public trust, there should be an elimination of market hunting, wildlife should be allocated by law, there should be hunting/angling opportunities for all citizens, wildlife should only be killed for legitimate reasons, wildlife should be …

Later Christian Hebraists, Stephen G. Burnett

Department of Classics and Religious Studies: Faculty Publications

Christian Hebrew scholarship as an academic discipline was born during the sixteenth century. The founding of chairs of Hebrew language at European universities, the emergence of Hebrew presses to supply the needs of Christian customers, the willingness of some Jewish experts to instruct Christian pupils, and above all the humanist motivation for a return to the sources of the Christian faith together made Hebrew education possible for greater numbers of Christian scholars than ever before. The majority of these scholars had only a smattering of Hebrew, and those such as Conrad Pellican, and Paul Fagius who could read and understand …

Remembering And Forgetting Black Power In Mississippi Burning, Kristen Hoerl

Department of Communication Studies: Faculty Publications

Although critics are correct to point out that Mississippi Burning did not faithfully depict historical events surrounding the real-life disappearances of [civil rights activists] Chaney, Schwerner, and Goodman, I argue that these criticisms overlook some of the ways in which the film advances the cause of racial justice. On a formal level, Mississippi Burning evokes the struggles experienced by members of the Black Power movement, a social movement that emerged on the heels of civil rights. Looking at the film in the context of this movement, I argue that Mississippi Burning is a homology for the Black Power movement. Barry …

Network Coding For Wdm All-Optical Multicast, Eric D. Manley, Jitender S. Deogun, Lisong Xu, Dennis R. Alexander

School of Computing: Technical Reports

Network coding has become a useful means for achieving efficient multicast, and the optical community has started to examine its application to optical networks. However, a number of challenges, including limited processing capability and coarse bandwidth granularity, need to be overcome before network coding can be effectively used in optical networks. In this paper, we address some of these problems. We consider the problem of finding efficient routes to use with coding, and we study the effectiveness of using network coding for optical-layer dedicated protection of multicast traffic. We also propose architectures for all-optical circuits capable of performing the processing …

Comparison Of Amylose Determination Methods And The Development Of A Dual Wavelength Iodine Binding Technique, Thianming Zhu, David S. Jackson, Randy L. Wehling, Bhima Geera

Department of Food Science and Technology: Faculty Publications

It has long been recognized that limitations exist in the analytical methodology for amylose determination. This study was conducted to evaluate various amylose determination methods. Purified amylose and amylopectin fractions were obtained from com, rice, wheat, and potato and then mixed in proportion to make 10, 20, 30, 50, and 80% amylose content starch samples for each source. These samples, considered amylose standards, were analyzed using differential scanning calorimetry (DSC), high-performance size-exclusion chromatography (HPSEC), and iodine binding procedures to generate standard curves for each of the methods. A single DSC standard equation for cereal starches was developed. The standard curve …

Genotypic Characterization And Prevalence Of Virulence Factors Among Canadian Escherichia Coli O157:H7 Strains, Kim Ziebell, Marina Steele, Yongxiang Zhang, Andrew K. Benson, Eduardo N. Taboada, Chad Laing, Scott Mcewen, Bruce Ciebin, Roger Johnson, Victor Gannon

Department of Food Science and Technology: Faculty Publications

In this study, the association between genotypic and selected phenotypic characteristics was examined in a collection of Canadian Escherichia coli O157:H7 strains isolated from humans and cattle in the provinces of Alberta, Ontario, Saskatchewan, and Quebec. In a subset of 69 strains selected on the basis of specific phage types (PTs), a strong correlation between the lineage-specific polymorphism assay (LSPA6) genotype and PT was observed with all strains of PTs 4, 14, 21, 31, 33, and 87 belonging to the LSPA6 lineage I (LSPA6-LI) genotype, while those of PTs 23, 45, 67, and 74 belonged to LSPA6 lineage II (LSPA6-LII) …

Short-Term Memory, Working Memory, And Executive Functioning In Preschoolers: Longitudinal Predictors Of Mathematical Achievement At Age 7 Years, Rebecca Bull, Kimberly Andrews Espy, Sandra A. Wiebe

Department of Educational Psychology: Faculty Publications

This study examined whether measures of short-term memory, working memory, and executive functioning in preschool children predict later proficiency in academic achievement at 7 years of age (third year of primary school). Children were tested in preschool (M age = 4 years, 6 months) on a battery of cognitive measures, and mathematics and reading outcomes (from standardized, norm-referenced school-based assessments) were taken on entry to primary school, and at the end of the first and third year of primary school. Growth curve analyses examined predictors of math and reading achievement across the duration of the study and revealed that …

Contributions Of Children’S Temperament To Teachers’ Judgments Of Social Competence From Kindergarten Through Second Grade, Kathleen Moritz Rudasill, Timothy R. Konold

Department of Educational Psychology: Faculty Publications

Research Findings: Children’s social competence has been linked to successful transition to formal school. The purpose of this study was to examine the contributions of children’s temperament to teachers’ ratings of their social competence from kindergarten through 2nd grade. Children (N = 1,364) from the National Institute of Child Health and Human Development Early Child Care Research Network participated in this study. Mothers rated children’s shyness, attentional focusing, and inhibitory control with the Children’s Behavior Questionnaire at 4½ years, and teachers rated children’s social competence with three subscales (cooperation, assertion, and self-control) of the Social Skills Rating System at …

Addressing Research Gaps In The Intersection Between Homophobia And Bullying, Dorothy L. Espelage, Susan M. Swearer Napolitano

Department of Educational Psychology: Faculty Publications

Bullying, aggression, and peer victimization among adolescents are significant public health concerns. Recent research has demonstrated that bullying and peer victimization sometimes include homophobic epithets directed at heterosexual and lesbian, gay, bisexual, and transgender (LGBT) youth. It appears that being at the receiving end of homophobic banter generally contributes to worse outcomes among youth. This article highlights methodological issues in conducting research with LGBT youth, and stresses the importance of using theoretically and empirically supported definitions, including youth who are sexually questioning, focusing on multiple social and cultural contexts, and examining how support networks serve as buffering agents with regard …

Anabolic Androgenic Steroids: Use And Perceived Use In Non-Athlete College Students, Joseph M. Berning, Kent J. Adams, Mark Debeliso, Bryant A. Stamford, Ian Newman

Department of Educational Psychology: Faculty Publications

Objective: The authors investigated the use and perceived use of anabolic androgenic steroids (AAS) among nonathlete college students. Participants: The authors surveyed a sample of 485 nonathlete college students at a major metropolitan university. Methods: They administered a survey on use and perceived use of AAS to the students. Results: Forty-two participants (9%) reported using AAS (37 men, 5 women). Seniors were the most likely to use AAS (36%), and freshman the least likely (7%). Thirty-four percent of nonusers and 41% of users indicated they knew between 1 and 5 AAS users. Of the total sample, 36% perceived that 5% …

Rippling Of Polymer Nanofibers, Xiang-Fa Wu, Yulia Kostogorova-Beller, Alexander Goponenko, Haoqing Hou, Yuris A. Dzenis

Department of Engineering Mechanics: Faculty Publications

This paper studies the evolution mechanism of surface rippling in polymer nanofibers under axial stretching. This rippling phenomenon has been detected in as-electrospun polyacrylonitrile in recent single-fiber tension tests, and in electrospun polyimide nanofibers after imidization. We herein propose a one-dimensional nonlinear elastic model that takes into account the combined effect of surface tension and nonlinear elasticity during the rippling initiation and its evolution in compliant polymer nanofibers. The polymer nanofiber is modeled as an incompressible, isotropically hyperelastic Mooney-Rivlin solid. The fiber geometry prior to rippling is considered as a long circular cylinder. The governing equation of surface rippling is …

Analysis Of The Effects Of The Residual Charge And Gap Size On Electrospun Nanofiber Alignment In A Gap Method, Lihua Liu, Yuris A. Dzenis

Department of Engineering Mechanics: Faculty Publications

In this paper, the effects of residual charges on nanofiber alignment in a gap method are studied and presented. The gap method was presented by Li and Xia (2003 Nano Lett. 3 1167); in it, a gap is introduced into a traditional collector. Due to the non-perfect conductivity of electrospun nanofibers, they carry residual charges after deposition across the gap. These residual charges will interact with the charges carried by the upcoming jet/fiber, that will also deposit across the gap. The effects of these charge interactions on nanofiber alignment were studied numerically at various gap sizes. Results showed that alignments …

Simultaneous Birefringence, Small- And Wide-Angle X-Ray Scattering To Detect Precursors And Characterize Morphology Development During Flow-Induced Crystallization Of Polymers, Lucia Fernandez-Ballester, Tim Gough, Florian Meneau, Wim Bras, Fernando Ania, Francisco Jose Balta-Calleja, Julia A. Kornfield

Department of Engineering Mechanics: Faculty Publications

An experimental configuration that combines the powerful capabilities of a short-term shearing apparatus with simultaneous optical and X-ray scattering techniques is demonstrated, connecting the earliest events that occur during shear-induced crystallization of a polymer melt with the subsequent kinetics and morphology development. Oriented precursors are at the heart of the great effects that flow can produce on polymer crystallization (strongly enhanced kinetics and formation of highly oriented crystallites), and their creation is highly dependent on material properties and the level of stress applied. The sensitivity of rheo-optics enables the detection of these dilute shear-induced precursors as they form during flow, …

Cell Autonomous Expression Of Inflammatory Genes In Biologically Aged Fibroblasts Associated With Elevated Nf-Kappab Activity., Andres Kriete, Kelli L Mayo, Nirupama Yalamanchili, William Beggs, Patrick Bender, Csaba Kari, Ulrich Rodeck

Department of Dermatology and Cutaneous Biology Faculty Papers

BACKGROUND: Chronic inflammation is a well-known corollary of the aging process and is believed to significantly contribute to morbidity and mortality of many age-associated chronic diseases. However, the mechanisms that cause age-associated inflammatory changes are not well understood. Particularly, the contribution of cell stress responses to age-associated inflammation in 'non-inflammatory' cells remains poorly defined. The present cross-sectional study focused on differences in molecular signatures indicative of inflammatory states associated with biological aging of human fibroblasts from donors aged 22 to 92 years. RESULTS: Gene expression profiling revealed elevated steady-state transcript levels consistent with a chronic inflammatory state in fibroblast cell-strains …

De Ansiedades Masculinas: Cartas De Un Alférez A Su Madre, De José María Salaverría, Iker González-Allende

Spanish Language and Literature Papers

Como en la mayor parte de las narrativas bélicas, durante la guerra civil española, el enemigo en gran medida pertenece al género masculino, pero especialmente en la ideología sublevada se insistió también en mostrar a la mujer republicana como un grave peligro para el ideal de nación, ya que se la identificaba con una feminidad amenazante y castradora, contraria al prototipo mariano de la mujer franquista. Los sublevados también criticaron duramente a la gente del pueblo o la masa, a la que consideraban del género femenino, siguiendo la tradición retórica decimonónica. Además, vieron especialmente en la figura de la rniliciana …

“Yo Vivo En Euskara, No Como Defensa, No Como Arma, Sino Como Una Manera De Ser.” Conversación Con La Escritora Jasone Osoro, Iker González-Allende

Spanish Language and Literature Papers

Jasone Osoro (Elgoibar, 1971) es una de las escritoras más destacadas y con mayor repercusión mediática en el panorama contemporáneo de las letras vascas. Tras estudiar Periodismo, ha trabajado en diversos medios de comunicación, pero son sus obras literarias las que principalmente le han otorgado el reconocimiento del público. En su primer libro de relatos, Tentazioak (“Tentaciones”), publicado en 1998, se halla una fuerte presencia del erotismo y de la sexualidad, lo que supuso una gran novedad en la literatura escrita en euskara. Con su segunda obra, Korapiloak (“Nudos”), del 2001, Osoro continuó disfrutando de un abrumador éxito de ventas, …

Review Of Teaching Representations Of The Spanish Civil War, Ed. Noël Valis, Iker González-Allende

Spanish Language and Literature Papers

There is no doubt that the publication of Teaching Representations of the Spanish Civil War is clearly justified by the increasing number of university courses--both in English and in Spanish-dedicated to the study of the Spanish Civil War (1936-39). As the editor, Noël Valis, points out, the intention of the book is to guide instructors in the diverse ways in which the wide variety of materials pertaining to the Spanish Civil War may be presented in the classroom. Nevertheless, the volume also raises interesting questions for researchers who work on this topic, such as the importance that race played during …

El Viaje Por La Memoria En La Hora Sin Sombra, Amalia Ran

Spanish Language and Literature Papers

Diez años de la muerte de Osvaldo Soriano (1943-97), y las causas representadas en su obra y por las cuales peleaba siguen intactas. Con su estilo conciso y económico, Soriano logró condensar dentro de lo poético ciertos dilemas fundamentales de una sociedad que "se soñaba de clase media, rubia y primer mundo" (Saccomanno 3), para criticar esta visión ilusoria y para demandar que se viera otro tipo de realidad. La infancia perdida, las identidades cambiadas, los fracasos del hombre frente a la gran "máquina" estatal, el culto político a los muertos, fueron temas recurrentes en sus novelas, siempre con un …

Demographic Effects Of Canine Parvovirus On A Free-Ranging Wolf Population Over 30 Years, L. David Mech, Sagar M. Goyal, William J. Paul, Wesley E. Newton

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

We followed the course of canine parvovirus (CPV) antibody prevalence in a subpopulation of wolves (Canis lupus) in northeastern Minnesota from 1973, when antibodies were first detected, through 2004. Annual early pup survival was reduced by 70%, and wolf population change was related to CPV antibody prevalence. In the greater Minnesota population of 3,000 wolves, pup survival was reduced by 40–60%. This reduction limited the Minnesota wolf population rate of increase to about 4% per year compared with increases of 16–58% in other populations. Because it is young wolves that disperse, reduced pup survival may have caused reduced …

Weight Changes In Wild Wolves, Canis Lupus, From Ages 2 To 24 Months, L. David Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Weights of 118 female and 141 male Minnesota Wolves (Canis lupus) aged 2-24 months increased almost linearly from about 8 kg for females and 10 kg for males at 3 months to 30 kg for females and 32 kg for males at 10-12 months and then tended to increase much more slowly in an overall curvilinear trend. Considerable variation was apparent for both sexes during their first year.

Spatial And Temporal Differences In Giant Kidney Worm, Dictophyma Renale, Prevalence In Minnesota Mink, Mustela Vison, L. David Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Examination of 110 Mink (Mustela vison) carcasses from 1998 through 2007 indicated that the giant kidney worm, Dioctophyma renale, occurred in Pine and Kanabec Counties of eastern Minnesota with annual prevalences of 0-92%. Worm prevalence increased from 20% in 1999 to 92% in 2001 and decreased to 6% in 2005. During 2000 to 2007, no worms were found in Mink from Anoka and Chisago Counties (n = 54), and in 2000, none in 107 Mink from LeSeur, Freeborn, Redwood, Brown and Watonwan Counties. Changes in kidney worm prevalence were positively related to trapping success, considered an index …

Wolf Body Mass Cline Across Minnesota Related To Taxonomy?, L. David Mech, William J. Paul

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Recent genetic studies suggest that in northern Minnesota two species of wolves (Canis lupus L., 1758 or western wolf and Canis lycaon Schreber, 1775 (= Canis rufus Audubon and Bachman, 1851) or eastern wolf) meet and hybridize. However, little morphological information is available about these two types of wolves in Minnesota. We analyzed the mass of 950 female wolves and 1006 males older than 1 year from across northern Minnesota and found that it increased from 26.30 ± 0.56 kg (mean ± SE) for females and 30.60 ± 0.72 kg for males in northeastern Minnesota to 30.01 ± 0.43 …

Recreation Visitor Attitudes Towards Management-Ignited Prescribed Fires In The Bob Marshall Wilderness Complex, Montana, Katie Knotek, Alan E. Watson, William T. Borrie, Joshua G. Whitmore, David Turner

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

Research at the Bob Marshall Wilderness Complex in Montana explored differences in recreation visitors’ attitudes towards the use of management-ignited prescribed fires in the wilderness. A mail-back survey of visitors (n = 291) during the 2004 season revealed that over half of visitors would accept prescribed fires in wilderness. This support did not vary by ignition purpose: (a) to restore the natural role of fire or (b) to reduce hazardous fuels and potential for fire escaping to non-wilderness lands. Local visitors, however, were significantly more accepting of prescribed fires than non-local visitors across both ignition purposes. A smaller proportion …

Biology And Biological Control Of Exotic True Thistles, Rachel Winston, Rich Hansen, Mark Schwarzlander, Eric Coombs, Carol Bell Randall, Rodney Lym

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

“Thistle” is an old English name for a large variety of weedy, prickly plants that grow throughout the world. The most notable characteristics of thistles are the prickly stems and leaves and the bracts around the flower head. While many different plants have “thistle” in their common name, only certain plant species fit the taxonomic requirements of being considered “true thistles.” True thistle species fall within the family Asteraceae, the tribe Cardueae, and the subtribe Carduinae. Examples of plants that are not true thistles include yellow starthistle (subtribe Centaureinae), sow thistle (subtribe Sonchinae), and Russian thistle (family Chenopodiaceae). Only true …

The “Adaptable Human” Phenomenon: Implications For Recreation Management In High-Use Wilderness, David N. Cole, Troy E. Hall

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

Wilderness managers must balance providing access for wilderness recreation with protecting the special experiences wilderness provides. This balancing act is particularly challenging at popular destinations close to large metropolitan areas. Such destinations provide substantial societal benefits by allowing respite from city life and immersion in natural environments for thousands; however, the thousands that throng to these places detract from the wildness and sense of solitude that wilderness should provide. Managers are left wondering what sorts of experiences are appropriate in such places or, more precisely, what experiences are so inappropriate that restrictive actions should be taken to avoid them. Particularly …

The Wetlands Reserve Program Supports Migrating Waterfowl In Nebraska’S Rainwater Basin Region

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

The Rainwater Basin region (RWB) consists of a 6,150 mi2 area of loess plains in south-central Nebraska (figure 1). The area is characterized by rolling plains formed by deep deposits of windblown silt with a high density of claypan playa wetlands. More than 200,000 acres of wetlands once existed in this region. As a result of agricultural and other development, only 17 percent of the original playa wetland area remains, most with hydrologic alterations. Siltation and colonization by invasive plant species (e.g., reed canary grass, narrow-leaved cattail, river bulrush) continue to threaten remaining wetland habitats in the RWB.

Despite historic …

The Influence Of Conifer Forest Canopy Cover On The Accuracy Of Two Individual Tree Measurement Algorithms Using Lidar Data, Michael J. Falkowski, Alistair M.S. Smith, Paul Gessler, Andrew T. Hudak, Lee A. Vierling, Jeffery S. Evans

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

Individual tree detection algorithms can provide accurate measurements of individual tree locations, crown diameters (from aerial photography and light detection and ranging (lidar) data), and tree heights (from lidar data). However, to be useful for forest management goals relating to timber harvest, carbon accounting, and ecological processes, there is a need to assess the performance of these image-based tree detection algorithms across a full range of canopy structure conditions. We evaluated the performance of two fundamentally different automated tree detection and measurement algorithms (spatial wavelet analysis (SWA) and variable window filters (VWF)) across a full range of canopy conditions in …

Evolutionary And Structural Analyses Of Alpha-Papillomavirus Capsid Proteins Yields Novel Insights Into L2 Structure And Interaction With L1, John Lowe, Debasis Panda, Suzanne Rose, Ty Jensen, Willie Hughes, For Yue Tso, Peter C. Angeletti

Nebraska Center for Virology: Faculty Publications

Background: PVs (PV) are small, non-enveloped, double-stranded DNA viruses that have been identified as the primary etiological agent for cervical cancer and their potential for malignant transformation in mucosal tissue has a large impact on public health. The PV family Papillomaviridae is organized into multiple genus based on sequential parsimony, host range, tissue tropism, and histology. We focused this analysis on the late gene products, major (L1) and minor (L2) capsid proteins from the family Papillomaviridae genus Alpha-papillomavirus. Alpha-PVs preferentially infect oral and anogenital mucosa of humans and primates with varied risk of oncogenic transformation. Development of evolutionary associations between …

Early Childhood Infection By Human Herpesvirus 8 In Zambia And The Role Of Human Immunodeficiency Virus Type 1 Coinfection In A Highly Endemic Area, Veenu Minhas, Kay L. Crabtree, Ann Chao, Tendai J. M'Sola, Chipepo Kankasa, Marc Bulterys, Charles D. Mitchell, Charles Wood

Nebraska Center for Virology: Faculty Publications

Kaposi’s sarcoma occurs at high incidence among Zambian adults and children, but there is a paucity of data on human herpesvirus 8 (HHV-8) incidence and routes of infection, especially in children. Between 1998 and 2004, the authors conducted a prospective study of viral transmission in a cohort of 684 children in Lusaka, Zambia, to estimate the annual incidence of HHV-8 from birth through 48 months of age. Maternal and pediatric human immunodeficiency virus type 1 (HIV-1) infection status was also determined. The results, based on 1,532 child-years of follow-up, showed that HHV-8 seroconversion occurs early in life. The incidence rate …

Modified Kigali Combined Staging Predicts Risk Of Mortality In Hiv-Infected Adults In Lusaka, Zambia, Philip J. Peters, Isaac Zulu, Nzali G. Kancheya, Shabir Lakhi, Elwyn Chomba, Cheswa Vwalika, Dhong-Jin Kim, Ilene Brill, Jareen Meinzen-Derr, Amanda Tichacek, Susan A. Allen

Nebraska Center for Virology: Faculty Publications

We assessed the utility of the modified Kigali combined (MKC) staging system for predicting survival in HIV-infected Zambian adults in a prospective, longitudinal, open cohort. From 1995 to 2004, HIV-discordant couples (one HIV-infected partner and one HIV-negative partner) were recruited from couples’ voluntary counseling and testing centers in Lusaka, Zambia and followed at 3-month intervals. MKC stage, which incorporates clinical stage with erythrocyte sedimentation rate (ESR), hematocrit, and body mass index (BMI), was determined at enrollment. Kaplan–Meier survival and Cox proportional hazard methods were used to calculate median survival and relative hazards. We enrolled 1479 HIV-discordant couples with a combined …