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Formation Of Aggregated Nanoparticle Spheres Through Femtosecond Laser Surface Processing, Alfred T. Tsubaki, Mark A. Koten, Michael J. Lucis, Craig Zuhlke, Natale J. Ianno, Jeffrey E. Shield, Dennis R. Alexander

Department of Electrical and Computer Engineering: Faculty Publications

A detailed structural and chemical analysis of a class of self-organized surface structures, termed aggregated nanoparticle spheres (AN-spheres), created using femtosecond laser surface processing (FLSP) on silicon, silicon carbide, and aluminum is reported in this paper. AN-spheres are spherical microstructures that are 20–100 μm in diameter and are composed entirely of nanoparticles produced during femtosecond laser ablation of material. AN-spheres have an onion-like layered morphology resulting from the build-up of nanoparticle layers over multiple passes of the laser beam. The material properties and chemical composition of the AN-spheres are presented in this paper based on scanning electron microscopy (SEM), focused …

The Impact Of Pollen Consumption On Honey Bee (Apis Mellifera) Digestive Physiology And Carbohydrate Metabolism, Vincent A. Ricigliano, William Fitz, Duan C. Copeland, Brendon M. Mott, Patrick Maes, Amy S. Floyd, Arnold Dockstader, Kirk E. Anderson

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Carbohydrate-active enzymes play an important role in the honey bee (Apis mellifera) due to its dietary specialization on plant-based nutrition. Secretory glycoside hydrolases (GHs) produced in worker head glands aid in the processing of floral nectar into honey and are expressed in accordance with the age-based division of labor. Pollen utilization by the honey bee has been investigated in considerable detail, but little is known about the metabolic fate of indigestible carbohydrates and glycosides in pollen biomass. Here, we demonstrate that pollen consumption stimulates the hydrolysis of sugars that are toxic to the bee (xylose, arabinose, mannose). GHs produced in …

Annotated World Bibliography Of Host Plants Of The Melon Fly, Bactrocera Cucurbitae (Coquillett) (Diptera: Tephritidae), Grant T. Mcquate, Nicanor J. Liquido, Kelly A. A. Nakamichi

Insecta Mundi

The melon fly, Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae), is a widespread, economically important tephritid fruit fly species. Bactrocera cucurbitae infests fruits and vegetables of a number of different plant species, with many host plants in the plant family Cucurbitaceae, but with additional hosts scattered across many other plant families. Although thought to be native to India, its distribution has spread throughout many countries in Oriental Asia, into a number of Pacific Island nations, and into Africa. The documented introductions into countries outside its native distribution show that this species could establish in other countries where it does not presently occur, …

Anisotropy, Phonon Modes, And Lattice Anharmonicity From Dielectric Function Tensor Analysis Of Monoclinic Cadmium Tungstate, Alyssa Mock, Rafal Korlacki, Sean Knight, Mathias Schubert

Department of Electrical and Computer Engineering: Faculty Publications

We determine the frequency dependence of four independent Cartesian tensor elements of the dielectric function for CdWO₄ using generalized spectroscopic ellipsometry within mid-infrared and far-infrared spectral regions. Different single crystal cuts, (010) and (001), are investigated. From the spectral dependencies of the dielectric function tensor and its inverse we determine all long-wavelength active transverse and longitudinal optic phonon modes with A_u and B_u symmetry as well as their eigenvectors within the monoclinic lattice. We thereby demonstrate that such information can be obtained completely without physical model line-shape analysis in materials with monoclinic symmetry. We then augment the …

Honors Program Induction: Fitting Into A Community That Is Born To Stand-Out, Jennifer Drew

UReCA: The NCHC Journal of Undergraduate Research and Creative Activity

Watching, waiting, wondering—I knew that in this moment I would either sink or swim in my desire to find my place in this university. I was standing on the sidewalk looking at the open green field; however, this field was not empty. All I had to do was step out onto that grass, but my fear of the unknown held me captive. I really felt like the little freshman I was. Since I had been in college, I had searched for that “home away from home” feeling. I longed to find this feeling, but after searching in the academy . …

Jargons And Pidgins And Creoles, Oh My!, Emily Gray

UReCA: The NCHC Journal of Undergraduate Research and Creative Activity

Linguistics, as defined by the Oxford English Dictionary, is “the science of studying language, including phonetics, phonology, morphology, syntax, semantics, pragmatics, and historical linguistics” (OED.com). Within this field, the study of pidgin and creole languages is the source of much controversy and disagreement. Due to their divergence from typical linguistic features and development patterns, pidgins and creoles have long been ignored by the linguistics community. Considered by many to be “inferior, haphazard, broken” versions of “older, more established languages,” these so-called “bastard tongues” were written off as unworthy of study (Todd 1). Only recently have these forms of language garnered …

Aluminum Analysis Of Water At Columbia College, Dung Golden

UReCA: The NCHC Journal of Undergraduate Research and Creative Activity

Water contamination from trace metals can pose severe threats to human and environmental health. The Environmental Protection Agency (EPA) classifies aluminum as a secondary contaminant, for which it provides non-mandatory secondary maximum contaminant levels (SCML) because such contaminants are not considered to present a risk to the public. The SMCL for aluminum is between 0.05 and 0.2 mg/L or part per million (ppm). Tap water from different sources on the Columbia College campus were analyzed for aluminum content by fluorometry and visible spectrometry. The results from the fluorometry method indicated that samples from two locations on campus were higher than …

Internal Control Activities As A Tool For Financial Management In The Public Sector: A Case Study Of Ghana Post Company Limited, Kwakye E. Agyapong

Journal for the Advancement of Developing Economies

The case, Ghana Post Company Limited, allows for the observation of internal control activities as a tool for financial management in the public sector. The objective of the research is to examine the control environment of the Ghana Post Company to ensure there is segregation of duties, proper information and communication between employees and management; and monitoring of the policies implemented by management. The sample size of 36 included individuals from all of the departments within the company. The departments are Auditing and Finance, Human Resource, Mail and Parcels, and Financial Services. The work established had continued lapses in the …

Changes In J-Soap-Ii And Savry Scores Over The Course Of Residential, Cognitive-Behavioral Treatment For Adolescent Sexual Offending, Jodi L. Viljoen, Andrew L. Gray, Catherine Shaffer, Natasha E. Latzman, Mario Scalora, Daniel Ullman

Department of Psychology: Faculty Publications

Although the Juvenile Sex Offender Assessment Protocol–II (J-SOAP-II) and the Structured Assessment of Violence Risk in Youth (SAVRY) include an emphasis on dynamic, or modifiable factors, there has been little research on dynamic changes on these tools. To help address this gap, we compared admission and discharge scores of 163 adolescents who attended a residential, cognitive-behavioral treatment program for sexual offending. Based on reliable change indices, one half of youth showed a reliable decrease on the J-SOAP-II Dynamic Risk Total Score and one third of youth showed a reliable decrease on the SAVRY Dynamic Risk Total Score. Contrary to expectations, …

Human Classifier: Observers Can Deduce Task Solely From Eye Movements, Brett Bahle, Mark Mills, Michael Dodd

Department of Psychology: Faculty Publications

Computer classifiers have been successful at classifying various tasks using eye movement statistics. However, the question of human classification of task from eye movements has rarely been studied. Across two experiments, we examined whether humans could classify task based solely on the eye movements of other individuals. In Experiment 1, human classifiers were shown one of three sets of eye movements: Fixations, which were displayed as blue circles, with larger circles meaning longer fixation durations; Scanpaths, which were displayed as yellow arrows; and Videos, in which a neon green dot moved around the screen. There was an additional Scene manipulation …

Assessment Of Metabolic Changes In Mycobacterium Smegmatis Wild Type And Alr Mutant Strains: Evidence For A New Pathway Of D-Alanine Biosynthesis., Darrell D. Marshall, Steven Halouska, Denise K. Zinniel, Robert J. Fenton, Katie Kenealy, Harpreet K. Chahal, Govardhan Rathnaiah, Raul G. Barletta, Robert Powers

Department of Chemistry: Faculty Publications

In mycobacteria, D-alanine is an essential precursor for peptidoglycan biosynthesis. The only confirmed enzymatic pathway to form D-alanine is through the racemization of L-alanine by alanine racemase (Alr, EC 5.1.1.1). Nevertheless, the essentiality of Alr in Mycobacterium tuberculosis and Mycobacterium smegmatis for cell survivability in the absence of D-alanine has been a point of controversy with contradictory results reported in the literature. To address this issue, we examined the effects of alr inactivation on the cellular metabolism of M. smegmatis. The M. smegmatis alr insertion mutant TAM23 exhibited essentially identical growth to wild type mc²155 in the …

A Raucous Entertainment: Melodrama, Race, And The Search For Moral Legibility In Nineteenth-Century America, Sarah M. Olivier

Electronic Theses and Dissertations

Gathering together episodes from American theater history, my dissertation focuses on the destabilizing identities and paradoxical resolutions of so-called "Indian" and slavery plays to address nineteenth-century melodrama's fundamental engagement with race. Melodrama is a spectacular form that uses iconic images to move audiences to feel powerful emotions and to assign moral legibility to societal problems. Given the significant role of territorial expansion and chattel slavery in US history, race has always presented Americans with crucial moral dilemmas. Melodrama has long provided a dominant mode of representation for addressing such dilemmas that hinges upon racially inflected conceptions of good and evil. …

Segmental Movement Compensations In Patients With Transtibial Amputation Identified Using Angular Momentum Separation, Brecca M. M. Gaffney

Electronic Theses and Dissertations

Patients with unilateral dysvascular transtibial amputation (TTA) adopt movement compensations that are required to maintain balance and achieve ambulation in the absence of ankle plantar flexion, and result in increased and asymmetric joint loading patterns. As a result, this population is at an increased risk of overuse injuries, such as low back pain (LBP). Clinical gait analysis is used to guide diagnostics in movement retraining following amputation, and is performed using instrumented (research based) or observational analyses (clinically based). However, instrumented analyses are currently impractical in most clinical settings due to expense and computational limitations. This dissertation presents the use …

Statistical Shape Modeling To Quantify Variation In The Proximal Humeral Anatomy, Paul B. Sade Sr.

Electronic Theses and Dissertations

The fit of the humeral prosthesis to the intramedullary canal and the replication of the anatomic humeral head center are important factors in Total Shoulder Arthroplasty (TSA). The objective of this thesis was to develop a Statistical Shape Model (SSM) of the cortical and cancellous bone regions of the proximal humerus, and to assess potential shape differences with gender and ethnicity, with a goal of informing implant design. An SSM was used and Principal Component Analysis (PCA) was applied to data that represented both the cancellous and cortical humeral bone of 63 healthy subjects and cadavers. Anatomical measurements and PC …

Biocompatible Copper Oxide Nanoparticle Composites From Cellulose And Chitosan: Facile Synthesis, Unique Structure, And Antimicrobial Activity, Chieu D. Tran, James Makuvaza, Erik Munson, Brian Bennett

Chemistry Faculty Research and Publications

Copper in various forms has been known to have bactericidal activity. Challenges to its application include preventing mobilization of the copper, to both extend activity and avoid toxicity, and bioincompatibility of many candidate substrates for copper immobilization. Using a simple ionic liquid, butylmethylimmidazolium chloride as the solvent, we developed a facile and green method to synthesize biocompatible composites containing copper oxide nanoparticles (CuONPs) from cellulose (CEL) and chitosan (CS) or CEL and keratin (KER). Spectroscopy and imaging results indicate that CEL, CS, and KER remained chemically intact and were homogeneously distributed in the composites with CuONPs with size of 22 …

Amino Acid Catabolism In Staphylococcus Aureus And The Function Of Carbon Catabolite Repression, Cortney R. Halsey, Shulei Lei, Jacqueline K. Wax, Mckenzie K. Lehman, Austin S. Nuxoll, Laurey Steinke, Marat Sadykov, Robert Powers, Paul D. Fey

Robert Powers Publications

Staphylococcus aureus must rapidly adapt to a variety of carbon and nitrogen sources during invasion of a host. Within a staphylococcal abscess, preferred carbon sources such as glucose are limiting, suggesting that S. aureus survives through the catabolism of secondary carbon sources. S. aureus encodes pathways to catabolize multiple amino acids, including those that generate pyruvate, 2-oxoglutarate, and oxaloacetate. To assess amino acid catabolism, S. aureus JE2 and mutants were grown in complete defined medium containing 18 amino acids but lacking glucose (CDM). A mutation in the gudB gene, coding for glutamate dehydrogenase, which generates 2-oxoglutarate from glutamate, significantly reduced …

Detecting Overpressure Zones By Using Model Based Inversion In Kupe Field, New Zealand, Timucin Cakir

Dissertations, Master's Theses and Master's Reports

Overpressure is a significant parameter during a drilling process in oil exploration. This phenomenon happens when pore pressure exceeds the limit of hydrostatic pressure in a formation and causes drastic hazards such as blow outs while drilling. This thesis focuses on the determination of possible overpressure areas and studies at three wells in Kupe Field, which is considered to be a natural-gas field in Taranaki Basin. In an effort to identify potential overpressure zones at the Kupe Field, acoustic impedance responses of 3D seismic data for three wells, along with their well log responses were evaluated.

Seismic inversion plays an …

Using Lidar To Map The Geology And Morphology Of Alluvial Fans: Salton Sea Area, California, Eric Alexander Macleod

Dissertations, Master's Theses and Master's Reports

The main result of this study has been to show that detailed maps of the geology and morphology of alluvial fans can be generated from high spatial resolution (1-meter) DEM’s (Digital Elevation Models) obtained from LiDAR (Light Detection and Ranging) data. DEMs with spatial resolutions of 1-meter, 10-meters and 30-meters were all examined but it was determined that only the 1-meter LiDAR data had sufficient spatial resolution to produce satisfactory maps of the geology and morphology. A case study on an alluvial fan in the Santa Rosa mountains northeast of the Salton Sea (California) showed that 1-meter spatial resolution LiDAR …

Report To The Community 2017, Centracare Health

Annual Report

• INNOVATIVE CARE 4
• ACCESS TO CARE 6
• MEETING YOUR NEEDS 12
• FINANCIALS 14
• WAYS TO GIVE 17
• DONOR TRIBUTE 27

Early Childhood Development And The Law, Clare Huntington

Faculty Scholarship

No abstract provided.

Principal Costs: A New Theory For Corporate Law And Governance, Richard Squire

Faculty Scholarship

No abstract provided.

Protean Statutory Interpretation In The Courts Of Appeals, James J. Brudney, Lawrence Baum

Faculty Scholarship

This Article is the first in-depth empirical and doctrinal analysis of differences in statutory interpretation between the courts of appeals and the Supreme Court. It is also among the first to anticipate how the Supreme Court’s interpretive approach may shift with the passing of Justice Scalia.

We begin by identifying factors that may contribute to interpretive divergence between the two judicial levels, based on their different institutional structures and operational realities. In doing so, we discuss normative implications that may follow from the prospect of such interpretive divergence. We then examine how three circuit courts have used dictionaries and legislative …

Franklin Delano Roosevelt As Lord Of The Admiralty 1913-1920, Joseph Sweeney

Faculty Scholarship

No abstract provided.

Foreign And U.S Educated Faculty Members’ Views On What Constitutes Excellent Teaching: Effects Of Gender And Discipline, Emad A. Ismail, James E. Groccia

To Improve the Academy: A Journal of Educational Development

This study identifies views of foreign-educated faculty who teach in American universities on what constitutes excellence in teaching based on different demographics using the online version of the Teacher Behavior Checklist. Faculty from 14 institutions within the Southern Regional Educational Board (SREB) were asked to rank the top 10 of 28 teacher qualities of excellent teaching. The final faculty sample consisted of 448 participants, of which 309 were United States-educated (US-educated), and 139 were foreign-educated. The majority of the foreign-educated faculty were from Asia and Europe. Results showed that both US- and foreign-educated faculty agreed on eight qualities as the …

Moving Toward The Center: The Integration Of Educational Development In An Era Of Historic Change In Higher Education, Bruce Kelley, Laura Cruz, Nancy Fire

To Improve the Academy: A Journal of Educational Development

Educational developers have generally articulated their mission around three major poles: faculty/professional development, instructional development, and organizational development (Diamond, 2002; Lewis, 1996). While the first two poles have received greater attention in the past, an increasing amount of emphasis is being placed on organizational development. This shift is a result of a growing tendency to see educational development as an integral component in helping colleges and universities effect change in multiple areas. The challenges higher education faces “require multiple teams of cross-unit expertise in order to make progress” (Schroeder, 2011, p. 202), and educational developers are often called on to …

Burnout Or Depression: Both Individual And Social Issue, Bianchi Renzo, Irvin Sam Schonfeld, Eric Laurent

Publications and Research

In view of the profound problems attached to the construct of burnout, we recommended that occupational health specialists focus on (job-related) depression rather than burnout to help workers more effectively. Epstein and Privitera (April 8, 1398) rejected our recommendation on the grounds that burnout is not a “purely individual syndrome”. Problematically, Epstein and Privitera attributed to us an idea that is not ours. In these authors’ view, equating burnout with depression is synonymous with mistakenly individualising a social problem. For two reasons, the argument that depression cannot replace burnout because burnout is a social problem whereas depression is an individual …

Variation In Δ15N And Δ13C Values Of Forages For Arctic Caribou: Effects Of Location, Phenology And Simulated Digestion, Lindsay L. Vansomeren, Perry S. Barboza, David D. Gustine, M. Syndonia Bret-Harte

United States Geological Survey: Staff Publications

RATIONALE: The use of stable isotopes for dietary estimates of wildlife assumes that there are consistent differences in isotopic ratios among diet items, and that the differences in these ratios between the diet item and the animal tissues (i.e., fractionation) are predictable. However, variation in isotopic ratios and fractionation of δ¹³C and δ¹⁵N values among locations, seasons, and forages are poorly described for arctic herbivores especially migratory species such as caribou (Rangifer tarandus).

METHODS: We measured the δ¹³Cand δ¹⁵N values of seven species of forage growing along a 200-km …

Comparison Of Acoustic Recorders And Field Observers For Monitoring Tundra Bird Communities, Skyler T. Vold, Colleen M. Handel, Lance B. Mcnew

United States Geological Survey: Staff Publications

Acoustic recorders can be useful for studying bird populations but their efficiency and accuracy should be assessed in pertinent ecological settings before use. We investigated the utility of an acoustic recorder formonitoring abundance of tundra-breeding birds relative to point-count surveys in northwestern Alaska, USA, during 2014. Our objectives were to 1) compare numbers of birds and species detected by a field observer with those detected simultaneously by an acoustic recorder; 2) evaluate how detection probabilities for the observer and acoustic recorder varied with distance of birds from the survey point; and 3) evaluate whether avian guild-specific detection rates differed between …

Assessment Of Frequency And Duration Of Point Counts When Surveying For Golden Eagle Presence, Ben R. Skipper, Clint W. Boal, Jo-Szu Tsai, Mark R. Fuller

United States Geological Survey: Staff Publications

We assessed the utility of the recommended golden eagle (Aquila chrysaetos) survey methodology in the U.S. Fish and Wildlife Service 2013 Eagle Conservation Plan Guidance. We conducted 800-m radius, 1-hr point-count surveys broken into 20-min segments, during 2 sampling periods in 3 areas within the Intermountain West of the United States over 2 consecutive breeding seasons during 2012 and 2013. Our goal was to measure the influence of different survey time intervals and sampling periods on detectability and use estimates of golden eagles among different locations. Our results suggest that a less intensive effort (i.e., survey duration shorter …

Lack Of Observed Movement Response To Lead Exposure Of California Condors, Sharon A. Poessel, Joseph Brandt, Linda Uyeda, Molly Astell, Todd E. Katzner

United States Geological Survey: Staff Publications

Lead poisoning is an important conservation concern for wildlife, and scavenging birds are especially at risk from consumption of carcasses of animals killed with lead ammunition. Because current methods to identify lead exposure require animal capture and blood collection, management would benefit from the development of a less costly and noninvasive behavioral test for illness in wild animals. We attempted to design such a test to identify lead exposure in California condors (Gymnogyps californianus) that we tracked with global positioning system (GPS) telemetry in southern California, USA, 2013–2016. We measured blood-lead concentrations in tracked birds and expected that …