Digital Commons Network^™

Metal Enhanced Fluorescence With Gold Nanoparticles, Shaina Larissa Strating Mattingly

Theses and Dissertations

A novel hybrid nanocomposite of Au nanoparticle-modified silicon nanowire was developed for surface enhanced fluorescence applications. The designed nanocomposite contained a silicon nanowire, gold nanoparticles and a silica layer doped with dye molecules. The hybrid nanomaterial was characterized using scanning electron microscopy (SEM), scanning transmission electron microscopy (STEM), fluorescence measurements, Fourier transform infrared (FT-IR) spectroscopy, and energy-dispersive X-ray spectroscopy (EDS). The results showed that the gold nanoparticles were uniformly adhered on the silicon nanowires and covered by a thin silica layer. The nanostructure exhibited strong capacity for surface enhanced fluorescence. Different enhancement factors were obtained by changing synthetic conditions.

The …

Effect Of A Nutrition Program On Eating Habits In Female Collegiate Athletes, Jorid Dagfinrud Oiestad

Theses and Dissertations

In the present study, an intervention took place using two female collegiate NCAA Division 1 (D1) teams. One team was randomized to be the experimental group, receiving the intervention of the 6-week nutrition education class Fueling for Performance (FFP). And the other team served as the control group, receiving no treatment. The purpose was to examine the effect of the FFP intervention on energy balance, body composition and self-efficacy compared to the control group, pre- and post- intervention.

The participants provided pre- and post intervention data through 3-day food records entered in MyPlate Super Tracker, wearing of a BodyMedia Senswear …

Potential Juror Credibility Evaluations Of Gay And Lesbian Witnesses, Lisa Mae Olson

Theses and Dissertations

This study looked at whether the sexual orientation of a witness has an effect on a potential juror's determination of the witness's credibility, and examined traits such as respondent gender and college major, that may predict high levels of sexual prejudice. The sample consisted of 379 undergraduate students at a medium sized, upper Midwestern university. Results did not reveal an overall link between witness credibility ratings and sexual orientation, with the gay male witness receiving the highest credibility rankings followed by the heterosexual male witness, heterosexual female witness, and lastly, the lesbian female witness. It does not appear that the …

Avian Blood Flukes (Digenea: Schistosomatidae) In North Dakota, Susana Rios

Theses and Dissertations

Avian blood flukes are digeneans belonging to the family Schistosomatidae and inhabit the blood circulatory system of birds. Their life cycle includes an intermediate snail host and a definitive bird host. They are found in representatives of several bird orders, but are most prevalent in waterfowl. North Dakota has a large number of wetlands, which provide important breeding sites for many aquatic birds and serve as stopover sites for migratory birds. The abundance and diversity of bird species that congregate in these wetlands ensures optimal conditions for parasite transmission within and among avian species. However, no study on avian blood …

Marijuana Consumption And The Perception Of Harm, David Ruggeri

Theses and Dissertations

Drug use is a public health issue with one-third of the United States population having reported consuming marijuana at some point in their lifetime. This paper examines how the perception of risk (both health and criminal sanctions) affects consumption behavior. This study examined marijuana consumption for the age ranges of 12-17, 18-25, and 26 and older during the years of 1999-2007.

Perceptions of health risk of marijuana vary from by age groups (12-17, 18-25, and 26 years of age and up). Persons age 26 and older perceive the health risks to be the greatest for occasional marijuana consumption, trailed by …

Identifying Landscape-Level Trends In Prairie Songbirds With Fragmented Habitats, Jessica Shahan

Theses and Dissertations

Grassland songbirds are experiencing significant population declines due to habitat loss and degradation. This study investigated the relationship between landscape-level patterns and prairie-level patterns in presence/absence, richness, and diversity for seven individual species, the total grassland songbird community, and three community subgroups. Overall, grassland songbirds did respond to landscape-level variables, although the strength of the relationship and the variables involved differed by species and functional group.

Human Performance Profiles For Planetary Analog Extra-Vehicular Activities: 120 Day And 30 Day Analog Missions, Tiffany M. Swarmer

Theses and Dissertations

Understanding performance factors for future planetary missions is critical for ensuring safe and successful planetary extra-vehicular activities (EVAs). The goal of this study was to gain operational knowledge of analog EVAs and develop biometric profiles for specific EVA types. Data was collected for a 120 and 30 day analog planetary exploration simulation focusing on EVA type, pre and post EVA conditions, and performance ratings. From this five main types of EVAs were performed: maintenance, science, survey/exploratory, public relations, and emergency. Each EVA type has unique characteristics and performance ratings showing specific factors in chronological components, environmental conditions, and EVA systems …

North Dakota State Policy Effects On State Public K-12 Schools' Ability To Offer Effective Professional Development, Stephen Ryan Townsend

Theses and Dissertations

Through research I have identified eight constructs of effective professional development (collaborative, content focused, active practice, inclusive of technology, goal oriented, evaluated, sustained, increases self-efficacy). North Dakota state law requires two days of professional development that are defined by their length of time. The purpose of this quantitative study was twofold: (a) to identify if the eight constructs of effective professional development are embedded in North Dakota public schools' professional development opportunities and (b) whether or not the schools that offer professional development given the restraints of North Dakota state law are offering effective professional development. North Dakota public school …

General Genetics Lab, Steelman Library, Todd Schraw Dr.

Syllabus Repository

No abstract provided.

Developmental Biology (Embryology), Steelman Library, Todd Schraw Dr.

Syllabus Repository

No abstract provided.

Law And Neuroscience Recommendations Submitted To The President's Bioethics Commission, David L. Faigman, Jones D. Owen, Richard J. Bonnie, B.J. Casey

Faculty Scholarship

No abstract provided.

Patent Trolling Why Bio & Pharmaceuticals Are At Risk, Robin Feldman, Nicholson W. Price Ii

Faculty Scholarship

No abstract provided.

Atomic Spectrometry Updates. Review Of Advances In Elemental Speciation, Robert Clough, Chris F. Harrington, Steve J. Hill, Yolanda Madrid, Julian F. Tyson

School of Geography, Earth and Environmental Sciences

No abstract provided.

Deficiency Of Sphingosine-1-Phosphate Lyase Impairs Lysosomal Metabolism Of The Amyloid Precursor Protein, I Karaca, Iy Tamboli, K Glebov, J Richter, Lh Fell, Mo Grimm, Vj Haupenthal, T Hartmann, Mh Gräler, Echten-Deckert G Van, J Walter

Peninsula Medical School

No abstract provided.

Mechanisms Underlying Dual Effects Of Serotonin During Development Of Helisoma Trivolvis(Mollusca), K Glebov, Ee Voronezhskaya, My Khabarova, E Ivashkin, Lp Nezlin, Eg Ponimaskin

Peninsula Medical School

No abstract provided.

The Impact Of Changing Surface Ocean Conditions On The Dissolution Of Aerosol Iron, Matthew P. Fishwick, Peter N. Sedwick, Maeve C. Lohan, Paul J. Worsfold, Kristen N. Buck, Thomas M. Church, Simon J. Ussher

School of Geography, Earth and Environmental Sciences

The proportion of aerosol iron (Fe) that dissolves in seawater varies greatly and is dependent on aerosol composition and the physicochemical conditions of seawater, which may change depending on location or be altered by global environmental change. Aerosol and surface seawater samples were collected in the Sargasso Sea and used to investigate the impact of these changing conditions on aerosol Fe dissolution in seawater. Our data show that seawater temperature, pH, and oxygen concentration, within the range of current and projected future values, had no significant effect on the dissolution of aerosol Fe. However, the source and composition of aerosols …

Uptake Epithelia Behave In A Cell-Centric And Not Systems Homeostatic Manner In Response To Zinc Depletion And Supplementation, D Zheng, Gp Feeney, Rd Handy, C Hogstrand, P Kille

School of Biological and Marine Sciences

No abstract provided.

Minimal Effects Of Waterborne Exposure To Single-Walled Carbon Nanotubes On Behaviour And Physiology Of Juvenile Rainbow Trout (Oncorhynchus Mykiss)., D Boyle, Je Fox, Jm Akerman, Ka Sloman, Tb Henry, Rd Handy

School of Biological and Marine Sciences

Fish behaviours are often considered to be sensitive endpoints of waterborne contaminants, but little attention has been given to engineered nanomaterials. The present study aimed to determine the locomotor and social behaviours of rainbow trout (Oncorhynchus mykiss) during waterborne exposure to single-walled carbon nanotubes (SWCNTs), and to ascertain the physiological basis for any observed effects. Dispersed stock suspensions of SWCNTs were prepared by stirring in sodium dodecyl sulphate (SDS), an anionic surfactant, on an equal w/w basis. Trout were exposed to control (no SWCNT or SDS), 0.25 mg L(-1) SDS (dispersant control), or 0.25 mg L(-1) of SWCNT for 10 …

Effects Of Silver Nanoparticles (Nm-300k) On Lumbricus Rubellus Earthworms And Particle Characterization In Relevant Test Matrices Including Soil, Der Ploeg Mjc Van, Rd Handy, Pl Waalewijn-Kool, Den Berg Jhj Van, Zeh Rivera, J Bovenschen, B Molleman, Jm Baveco, P Tromp, Rjb Peters, Gf Koopmans, Imcm Rietjens, Den Brink Nw Van

School of Biological and Marine Sciences

No abstract provided.

Moving Beyond Too Little, Too Late: Managing Emerging Infectious Diseases In Wild Populations Requires International Policy And Partnerships, Jamie Voyles, A. Marm Kilpatrick, James P. Collins, Matthew C. Fisher, Winifred F. Frick, Hamish Mccallum, Craig K.R. Willis, David S. Blehert, Kris A. Murray, Robert Puschendorf, Erica Bree Rosenblum, Benjamin M. Bolker, Tina L. Cheng, Kate E. Langwig, Daniel L. Lindner, Mary Toothman, Mark Q. Wilber, Cheryl J. Briggs

School of Biological and Marine Sciences

Emerging infectious diseases (EIDs) are on the rise due to multiple factors, including human facilitated movement of pathogens, broad-scale landscape changes, and perturbations to ecological systems (Jones et al. 2008; Fisher et al. 2012). Epidemics in wildlife are problematic because they can lead to pathogen spillover to new host organisms, erode biodiversity and threaten ecosystems that sustain human societies (Fisher et al. 2012; Kilpatrick 2011). There have been recent calls for large-scale research approaches to combat the threats EIDs pose to wildlife (Sleeman 2013). While it is true that developing new analytical models, diagnostic assays and molecular tools will significantly …

Toxicity Of Cerium Oxide Nanoparticles To The Earthworm Eisenia Fetida: Subtle Effects, E Lahive, K Jurkschat, Bj Shaw, Rd Handy, Dj Spurgeon, C Svendsen

School of Biological and Marine Sciences

No abstract provided.

Steps Toward A Shared Governance Response For Achieving Good Environmental Status In The Mediterranean Sea, Sergio Cinnirella, R Sarda, Suarez De Vivero J Luis, Ruth Brennan, Alberto Barausse, John Icely, Tiziana Luisetti, David March, Carla Murciano, Alice Newton, T O'Higgins, Luca Palmeri, Maria Giovanna Palmieri, Pascal Raux, Sian Rees, J Albaiges, Nicola Pirrone, Kerry Turner

School of Biological and Marine Sciences

No abstract provided.

Shallow Water Marine Sediment Bacterial Community Shifts Along A Natural Co2 Gradient In The Mediterranean Sea Off Vulcano, Italy., Dorsaf Kerfahi, Jason M. Hall-Spencer, Binu M. Tripathi, Marco Milazzo, Junghoon Lee, Jonathan M. Adams

School of Biological and Marine Sciences

The effects of increasing atmospheric CO(2) on ocean ecosystems are a major environmental concern, as rapid shoaling of the carbonate saturation horizon is exposing vast areas of marine sediments to corrosive waters worldwide. Natural CO(2) gradients off Vulcano, Italy, have revealed profound ecosystem changes along rocky shore habitats as carbonate saturation levels decrease, but no investigations have yet been made of the sedimentary habitat. Here, we sampled the upper 2 cm of volcanic sand in three zones, ambient (median pCO(2) 419 μatm, minimum Ω(arag) 3.77), moderately CO(2)-enriched (median pCO(2) 592 μatm, minimum Ω(arag) 2.96), and highly CO(2)-enriched (median pCO(2) 1611 …

Cross-Shelf Exchange In The Northwestern Black Sea, Feng Zhou, Georgy Shapiro, Fred Wobus

School of Biological and Marine Sciences

No abstract provided.

Public Perceptions Of Sharks: Gathering Support For Shark Conservation, Laura A. Friedrich, Rebecca Jefferson, Gillian Glegg

School of Biological and Marine Sciences

No abstract provided.

Seasonality Affects Macroalgal Community Response To Increases In Pco2., Cecilia Baggini, Maria Salomidi, Emanuela Voutsinas, Laura Bray, Eva Krasakopoulou, Jason M. Hall-Spencer

School of Biological and Marine Sciences

Ocean acidification is expected to alter marine systems, but there is uncertainty about its effects due to the logistical difficulties of testing its large-scale and long-term effects. Responses of biological communities to increases in carbon dioxide can be assessed at CO2 seeps that cause chronic exposure to lower seawater pH over localised areas of seabed. Shifts in macroalgal communities have been described at temperate and tropical pCO2 seeps, but temporal and spatial replication of these observations is needed to strengthen confidence our predictions, especially because very few studies have been replicated between seasons. Here we describe the seawater chemistry and …

Comparison Of Intermittent And Continuous Exposures To Inorganic Mercury In The Mussel, Mytilus Edulis: Accumulation And Sub-Lethal Physiological Effects., D Amachree, Aj Moody, Rd Handy

School of Biological and Marine Sciences

Aquatic organisms are often subject to intermittent exposure to pollutants in real ecosystems. This study aimed to compare mercury accumulation and the physiological responses of mussels, Mytilus edulis during continuous and intermittent exposure to the metal. Mussels were treated in a semi-static, triplicated design to either a control (no added Hg) or 50 µg l(-1) Hg as HgCl2 in continuous (daily) or intermittent (2 day exposure, 2 days in clean seawater alternately) exposure for 14 days. A time-dependent increase in Hg accumulation was observed in the continuous exposure, while the intermittent treatment showed step-wise changes in Hg concentrations with the …

A Biological, Latent Variable Model Of Health (Earlybird 68)., Michael E. Hyland, Alison N. Jeffery, Terence J. Wilkin

School of Psychology

OBJECTIVE: To determine whether factor analysis of a set of health-related biomarkers provides evidence of an underlying common dimension of variation, and to explore the relationship between this dimension of variation with positive and negative affect. METHOD: Twelve health-related metabolic, immune and body-composition biomarkers at ages 5, 7, 9, 11, 14 and 16years were obtained from the EarlyBird longitudinal cohort of 347 children and supplemented by positive affect (PA) and negative affect (NA) measured at age 16years. RESULTS: At each age, principal factor analysis revealed that nine of the 12 biomarkers consistently loaded on the first extracted factor, accounting for …

The Fate Of Redundant Cues: Further Analysis Of The Redundancy Effect, Peter M. Jones, John M. Pearce

School of Psychology

Pearce, Dopson, Haselgrove, and Esber (Journal of Experimental Psychology: Animal Behavior Processes, 38, 167–179, 2012) conducted a series of experiments with rats and pigeons in which the conditioned responding elicited by two types of redundant cue was compared. One of these redundant cues was a blocked cue X from A+ AX+ training, whereas the other was cue Y from a simple discrimination BY+ CY–. Greater conditioned responding was elicited by X than by Y; we refer to this difference as the redundancy effect. To test an explanation of this effect in terms of comparator theory (Denniston, Savastano, & Miller, 2001), …

Going Native? Flower Use By Bumblebees In English Urban Gardens., Mick E. Hanley, Amanda J. Awbi, Miguel Franco

School of Biological and Marine Sciences

BACKGROUND AND AIMS: Although urban gardens provide opportunities for pollinators in an otherwise inhospitable environment, most garden plants are not native to the recipient biogeographical region and their value to local pollinators is disputed. This study tested the hypothesis that bumblebees foraging in English urban gardens preferentially visited sympatric Palaearctic-range plants over species originating outside their native range. METHODS: Twenty-seven surveys of flower availability and bumblebee visitation (Bombus spp.) were conducted over a 3-month summer period. Plants were categorized according to whether they were native British, Palaearctic or non-Palaearctic in origin. A phylogeny of the 119 plant species recorded was …