Digital Commons Network^™

Milk Exosomes: Beyond Dietary Micrornas, Janos Zempleni

Department of Nutrition and Health Sciences: Faculty Publications

Extracellular vesicles deliver a variety of cargos to recipient cells, including the delivery of cargos in dietary vesicles from bovine milk to non-bovine species. The rate of discovery in this important line of research is slowed by a controversy whether the delivery and bioactivity of a single class of vesicle cargos, microRNAs, are real or not. This opinion paper argues that the evidence in support of the bioavailability of microRNAs encapsulated in dietary exosomes outweighs the evidence produced by scholars doubting that phenomenon is real. Importantly, this paper posits that the time is ripe to look beyond microRNA cargos and …

Bulloch County Sociological Survey, 1949, Zach S. Henderson Library Special Collections

Finding Aids

This collection includes interview transcripts and demographic records of Statesboro-Bulloch County residents and their views of social class divisions and current events in Bulloch County. Documents were compiled in 1949 by sociological researcher, Bevode C. McCall. His 1954 dissertation, “Georgia Town and Cracker Culture” is a result of this survey.

Find this collection in the University Libraries' catalog.

Assessment Of A Channel Catfish Population In A Large Open River System, A. J. Blank, M. J. Hamel, Jonathan J. Spurgeon, Mark A. Pegg

School of Natural Resources: Faculty Publications

Estimates of dynamic rate functions for riverine channel catfish, Ictalurus punctatus (Rafinesque), populations are limited. The open nature and inherent difficulty in sampling riverine environments and the propensity for dispersal of channel catfish impede estimation of population variables. However, contemporary population models (i.e. robust design models) can incorporate the open nature of these systems. The purpose of this study was to determine channel catfish population abundance, survival and size structure and to characterize growth in the lower Platte River, Nebraska, USA. Annual survival estimates of adult channel catfish were 13%–49%, and channel catfish abundance estimates ranged from 8,281 to 24,261 …

Alawayne Nessmith Papers, Zach S. Henderson Library Special Collections

Finding Aids

This collection consists of the personal papers of Alawayne Nessmith concerning her participation in civic organizations from 1975 to 2000 in Statesboro, Georgia. The primary focus is the Statesboro-Georgia Southern Symphony Guild, but also included are documents related to her involvement in the Statesboro Civic Garden Club and Bulloch Council of Garden Clubs. Materials include organizational minutes, activities, events, and fundraising.

Find this collection in the University Libraries' catalog.

Changing Currents: Climate Change And Stakeholder Involvement In The Colorado River Basin, Kristen M. Dikeman

Oklahoma Law Review

No abstract provided.

A License To Infringe: The Tenth Circuit’S Reliance On The Reasonable Observer Test To Determine Symbolic Speech Protection Of License Plates, Hayley Ray Scott

Oklahoma Law Review

No abstract provided.

Terrorist Watchlists, Jeffrey D. Kahn

Faculty Journal Articles and Book Chapters

This chapter assesses the legal history and policy development of the U.S. government's system of terrorist watchlists and the institutions established to create and use them. Watchlisting is in fact an old practice given new meaning by technological change and the societal impact of the September 11, 2001, terrorist attacks. Statutes and judicial precedents from an earlier era on which the first post-9/11 watchlists were built were not made to regulate the expanded uses of the new watchlists and presented few if any constraints on their development. Civil litigation has both revealed the inner workings of terrorist watchlists and spurred …

Beyond Administrative Tunnel Vision: Widening The Lens Of Costs And Benefits, Govind Persad

Publications

Choices in one sector or department of public policy, such as health, frequently produce costs and benefits in other sectors, such as education or the environment. In this article, I argue that administrators should not make decisions in ways that ignore effects on other policy sectors, and arguablythough more debatably-should not give special priority to the interests of their own sector In Part I, I review contexts where administrators are directed to ignore or give a lower priority to effects on other policy sectors. In Part II, I lay out an argument that agencies should not ignore these effects (using …

Developing An Innovative Entity Extraction Method For Unstructured Data, Waleed A. Zaghloul, Silvana Trimi

Department of Management: Faculty Publications

The main goal of this study is to build high-precision extractors for entities such as Person and Organization as a good initial seed that can be used for training and learning in machine-learning systems, for the same categories, other categories, and across domains, languages, and applications. The improvement of entities extraction precision also increases the relationships extraction precision, which is particularly important in certain domains (such as intelligence systems, social networking, genetic studies, healthcare, etc.). These increases in precision improve the end users’ experience quality in using the extraction system because it lowers the time that users spend for training …

A Combinatorial Approach To Root Multiplicities Of Rank 2 Hyperbolic Kac-Moody Algebras, Seok-Jin Kang, Kyu-Hwan Lee, Kyungyong Lee

Department of Mathematics: Faculty Publications

In this paper we study root multiplicities of rank 2 hyperbolic Kac-Moody algebras using the combinatorics of Dyck paths.

Beyond Aztec Castles: Toric Cascades In The Dp3 Quiver, Tri Lai, Gregg Musiker

Department of Mathematics: Faculty Publications

Given one of an infinite class of supersymmetric quiver gauge theories, string theorists can associate a corresponding toric variety (which is a Calabi-Yau 3-fold) as well as an associated combinatorial model known as a brane tiling. In combinatorial language, a brane tiling is a bipartite graph on a torus and its perfect matchings are of interest to both combinatorialists and physicists alike. A cluster algebra may also be associated to such quivers and in this paper we study the generators of this algebra, known as cluster variables, for the quiver associated to the cone over the del Pezzo surface dP …

No Positive Cone In A Free Product Is Regular, Susan Hermiller, Zoran Sunic

Department of Mathematics: Faculty Publications

We show that there exists no left order on the free product of two nontrivial, finitely generated, left-orderable groups such that the corresponding positive cone is represented by a regular language. Since there are orders on free groups of rank at least two with positive cone languages that are context-free (in fact, 1-counter languages), our result provides a bound on the language complexity of positive cones in free products that is the best possible within the Chomsky hierarchy. It also provides a strengthening of a result by Cristobal Rivas which states that the positive cone in a free product of …

What Do Undergraduate Students Know About Scholarly Communication? A Mixed Methods Study, Catherine Fraser Riehle, Merinda Kaye Hensley

University of Nebraska-Lincoln Libraries: Faculty Publications

Amid movements that recognize undergraduate students as knowledge creators, transformative work is being done at the intersection of information literacy and scholarly communication. Absent from the literature so far is research related to students’ perception and understanding of scholarly communication. This paper reports a mixed methods study at two major research universities in the United States, where undergraduate student researchers were surveyed and interviewed about their scholarly communication practices and perceptions. This work informs development of programming at the intersection of scholarly communication and information literacy in general, and for those involved with undergraduate research experiences in particular.

Incorporating Race Into Your Legal Research Class, Shamika Dalton

Publications

No abstract provided.

Pulling In Different Directions? Exploring The Relationship Between Vertical Pay Dispersion And High-Performance Work Systems, Jake G. Messersmith, Kyoung Yong Kim, Pankaj C. Patel

Department of Management: Faculty Publications

Vertical pay dispersion (VPD), a hierarchical pay structure used to motivate employees, has traditionally been studied separately from high-performance work systems (HPWSs). As a component of HPWSs, incentive-based compensation schemes focus on employee- or team-level incentives. However, the influence of the simultaneous utilization of VPD and HPWS on performance remains understudied. This study addresses the question of whether these approaches to managing human capital serve as complements or substitutes to one another. VPD and HPWS are argued to substitute for one another with respect to motivation- and skill-enhancing practices. The opposite notion is true in regard to opportunity-enhancing HPWSs, which …

Graphic Novels: A Brief History, Their Use In Business Education, And The Potential For Negotiation Pedagogy, Mallory Wallace

Department of Management: Faculty Publications

Over an extensive history, graphic novels have developed into a legitimate form of fiction and nonfiction for readers and students. Use of graphic novels in classrooms has proven effective in facilitating learning for students, as a conduit for lifelong reading, a tool for increased comprehension and critical literacy, and a stimulus for interest and comprehension. In applying this to teaching negotiation and conflict management, graphic novels may be effective in engaging students and increasing understanding when terms and concepts are confusing or vague, especially in their differences, and can help students understand the process and outcome of negotiation, both objective …

Tornado Warning Response And Perceptions Among Undergraduates In Nebraska, Sabrina T. Jauernic, Matthew S. Van Den Broeke

Department of Earth and Atmospheric Sciences: Faculty Publications

Few studies show how university students perceive and respond to tornado warnings. Lacking in the literature are investigations of what influences perceptions of tornado risk among this population and how these perceptions may influence actions. Through an online survey of 640 undergraduates enrolled at a large university in Nebraska, significant relationships were found between student demographics, perceptions, and response actions. Tornado mythology relevant to the local city influenced perceptions so that students felt the city was less at risk than surrounding rural land. Confirming risk before sheltering remained popular, with some students choosing to never seek shelter during a warning. …

Beyond Zero-Sum Environmentalism, Sarah Krakoff, Shalanda Baker, Robin Kundis Craig, John Dernbach, Keith Hirokawa, Jessica Owley, Melissa Powers, Shannon Roesler, Jonathan Rosenbloom, J.B. Ruhl, Jim Salzman, Inara Scott, David Takacs

Publications

No abstract provided.

Effects Of Aspect Ratio On The Mode Couplings Of Thin-Film Bulk Acoustic Wave Resonators, Nian Li, Zhenghua Qian, Jiashi Yang

Department of Mechanical and Materials Engineering: Faculty Publications

We studied mode couplings in thin film bulk acoustic wave resonators of a piezoelectric film on a dielectric layer operating with the fundamental thickness-extensional mode. A system of plate equations derived in our previous paper was used which includes the couplings to the unwanted in-plane extension, flexure, fundamental and second-order thickness shear modes. It was shown that the couplings depend strongly on the plate length/thickness ratio. For a relatively clean operating mode with weak couplings to unwanted modes, a series of discrete values of the plate length/thickness ratio should be avoided and these values were determined in the present paper. …

Micro/Nanostructures Formation By Femtosecond Laser Surface Processing On Amorphous And Polycrystalline Ni60nb40, Edwin Peng, Alfred Tsubaki, Craig A. Zuhlke, Meiyu Wang, Ryan Bell, Michael J. Lucis, Troy P. Anderson, Dennis R. Alexander, George Gogos, Jeffrey E. Shield

Department of Mechanical and Materials Engineering: Faculty Publications

Femtosecond laser surface processing is a technology that can be used to functionalize many surfaces, imparting specialized properties such as increased broadband optical absorption or superhydrophilicity/superhydrophobicity. In this study, two unique classes of surface structures, below surface growth (BSG) and above surface growth (ASG) mounds, were formed by femtosecond laser surface processing on amorphous and polycrystalline Ni₆₀Nb₄₀ with two different grain sizes. Cross sectional imaging of these mounds revealed thermal evidence of the unique formation processes for each class of surface structure. BSG mounds formed on all three substrates using the same laser parameters had similar surface …

Biodegradable Elastic Nanofibrous Platforms With Integrated Flexible Heaters For On-Demand Drug Delivery, Ali Tamayol, Alireza Hassani Najafabadi, Pooria Mostafalu, Ali K. Yetisen, Mattia Commotto, Musab Aldhahri, Mohamed Shaaban Abdel-Wahab, Zeynab Izadi Najafabadi, Shahrzad Latifi, Mohsen Akbari, Nasim Annabi, Seok Hyun Yun, Adnan Memic, Mehmet R. Dokmeci, Ali Khademhosseini

Department of Mechanical and Materials Engineering: Faculty Publications

Delivery of drugs with controlled temporal profiles is essential for wound treatment and regenerative medicine applications. For example, bacterial infection is a key challenge in the treatment of chronic and deep wounds. Current treatment strategies are based on systemic administration of high doses of antibiotics, which result in side effects and drug resistance. On-demand delivery of drugs with controlled temporal profile is highly desirable. Here, we have developed thermally controllable, antibiotic-releasing nanofibrous sheets. Poly(glycerol sebacate)- poly(caprolactone) (PGS-PCL) blends were electrospun to form elastic polymeric sheets with fiber diameters ranging from 350 to 1100 nm and substrates with a tensile modulus …

Solution Nuclear Magnetic Resonance Spectroscopy On A Nanostructured Diamond Chip, P. Kehayias, A. Jarmola, N. Mosavian, I. Fescenko, F.M. Benito, A. Laraoui, J. Smits, L. Bougas, D. Budker, A. Neumann, S.R.J. Brueck, V.M. Acosta

Department of Mechanical and Materials Engineering: Faculty Publications

Sensors using nitrogen-vacancy centers in diamond are a promising tool for small-volume nuclear magnetic resonance (NMR) spectroscopy, but the limited sensitivity remains a challenge. Here we show nearly two orders of magnitude improvement in concentration sensitivity over previous nitrogen-vacancy and picoliter NMR studies. We demonstrate NMR spectroscopy of picoliter-volume solutions using a nanostructured diamond chip with dense, high-aspect-ratio nanogratings, enhancing the surface area by 15 times. The nanograting sidewalls are doped with nitrogen-vacancies located a few nanometers from the diamond surface to detect the NMR spectrum of roughly 1 pl of fluid lying within adjacent nanograting grooves. We perform 1H …

Quantification Of Re-Absorption And Re-Emission Processes To Determine Photon Recycling Efficiency In Perovskite Single Crystals, Yanjun Fang, Haotong Wei, Qingfeng Dong, Jinsong Huang

Department of Mechanical and Materials Engineering: Faculty Publications

Photon recycling, that is, iterative self-absorption and re-emission by the photoactive layer itself, has been speculated to contribute to the high open-circuit voltage in several types of high efficiency solar cells. For organic–inorganic halide perovskites that have yielded highly efficient photovoltaic devices, however, it remains unclear whether the photon recycling effect is significant enough to improve solar cell efficiency. Here we quantitatively evaluate the re-absorption and re-emission processes to determine photon recycling efficiency in hybrid perovskite with its single crystals by measuring the ratio of the re-emitted photons to the initially excited photons, which is realized by modulating their polarization …

Flowtaxis Of Osteoblast Migration Under Fluid Shear And The Effect Of Rhoa Kinase Silencing, Brandon D. Riehl, Jeong Soon Lee, Ligyeom Ha, Il Keun Kwon, Jung Yul Lim

Department of Mechanical and Materials Engineering: Faculty Publications

Despite the important role of mechanical signals in bone remodeling, relatively little is known about how fluid shear affects osteoblastic cell migration behavior. Here we demonstrated that MC3T3-E1 osteoblast migration could be activated by physiologically-relevant levels of fluid shear in a shear stress-dependent manner. Interestingly, shear-sensitive osteoblast migration behavior was prominent only during the initial period after the onset of the steady flow (for about 30 min), exhibiting shear stress-dependent migration speed, displacement, arrest coefficient, and motility coefficient. For example, cell speed at 1 min was 0.28, 0.47, 0.51, and 0.84 μm min^-1 for static, 2, 15, and 25 …

High Temperature Near-Field Nanothermomechanical Rectification, Mahmoud Elzouka, Sidy Ndao

Department of Mechanical and Materials Engineering: Faculty Publications

Limited performance and reliability of electronic devices at extreme temperatures, intensive electromagnetic fields, and radiation found in space exploration missions (i.e., Venus & Jupiter planetary exploration, and heliophysics missions) and earth-based applications requires the development of alternative computing technologies. In the pursuit of alternative technologies, research efforts have looked into developing thermal memory and logic devices that use heat instead of electricity to perform computations. However, most of the proposed technologies operate at room or cryogenic temperatures, due to their dependence on material’s temperature-dependent properties. Here in this research, we show experimentally—for the first time—the use of near-field thermal radiation …

High-Velocity Projectile Impact Induced 9r Phase In Ultrafine-Grained Aluminium, Sichuang Xue, Zhe Fan, Olawale B. Lawal, Ramathasan Thevamaran, Qiang Li, Yue Liu, K. Y. Yu, Jian Wang, Edwin L. Thomas, Haiyan Wang, Xinghang Zhang

Department of Mechanical and Materials Engineering: Faculty Publications

Aluminium typically deforms via full dislocations due to its high stacking fault energy. Twinning in aluminium, although difficult, may occur at low temperature and high strain rate. However, the 9R phase rarely occurs in aluminium simply because of its giant stacking fault energy. Here, by using a laser-induced projectile impact testing technique, we discover a deformation-induced 9R phase with tens of nm in width in ultrafine-grained aluminium with an average grain size of 140 nm, as confirmed by extensive post-impact microscopy analyses. The stability of the 9R phase is related to the existence of sessile Frank loops. Molecular dynamics simulations …

Conceptualizing Cryptolaw, Carla L. Reyes

Faculty Journal Articles and Book Chapters

Sweden transfers its real property recording system to the blockchain, a software protocol that enables public, cryptographically secure transaction verification without reliance upon a trusted third party. Dubai plans to issue blockchain-based government documents. The United States Department of Health and Human Services investigates blockchain-based systems for managing health data. Illinois explores blockchain-based applications for use in the Illinois government. News of governments and public-private partnerships developing blockchain-based legal applications increasingly splash across the headlines; however the law-makers using blockchain and other Distributed Ledger Technology (DLT) systems to implement legal processes do not systematically consider the broader implications of their …

So What Are You Going To Do With That? The Promises And Pitfalls Of Massive Data Sets, Sigrid Anderson Cordell, Melissa Gomis

University of Nebraska-Lincoln Libraries: Faculty Publications

This article takes as its case study the challenge of data sets for text mining, sources that offer tremendous promise for digital humanities (DH) methodology but present specific challenges for humanities scholars. These text sets raise a range of issues: What skills do you train humanists to have? What is the library’s role in enabling and supporting use of those materials? How do you allocate staff? Who oversees sustainability and data management? By addressing these questions through a specific use case scenario, this article shows how these questions are central to mapping out future directions for a range of library …

By Any Other Name: Rational Basis Inquiry And The Federal Government's Fiduciary Duty Of Care, Gary S. Lawson, Guy I. Seidman

Faculty Scholarship

Under modern law, federal legislation is subject to “rational basis review” under the doctrinal rubric of “substantive due process.” That construction of the Fifth Amendment’s Due Process Clause is notoriously difficult to justify as a matter of original constitutional meaning. Something very similar to substantive due process, however, is easily justifiable as a matter of original constitutional meaning once one understands that the Constitution, for interpretative purposes, is best seen as a kind of fiduciary instrument. Fiduciary instruments operate against a background of legal norms that notably include a duty of care on the part of agents. All federal actors …

Wealth Inequality And Activism: Perceiving Injustice Galvanizes Social Change But Perceptions Depend On Political Ideologies, Crystal L. Hoyt, Aaron J. Moss, Jeni L. Burnette, Annette Schieffelin, Abigail Goethals

Jepson School of Leadership Studies articles, book chapters and other publications

What motivates people to engage in activism against wealth inequality? The simple answer is, perceiving injustice. However, the current work demonstrates that these perceptions depend on political ideologies. More specifically, for political liberals who frequently question the fairness of the economic system, messages simply describing the extent of the inequality (distributive injustice) are enough to motivate activism (Study 1). For political conservatives, who are inclined to believe that inequality results from fair procedures, messages must also detail how the system of economic forces is unjust (procedural injustice; Studies 2 and 3). Together, these studies suggest perceiving injustice can galvanize social …