Digital Commons Network^™

The Influence Of Shelter, Conspecifics, And Threat Of Predation On The Behavior Of The Long-Spined Sea Urchin (Diadema Antillarum), Meredith D. Kintzing, Mark J. Butler Iv

Biological Sciences Faculty Publications

The interplay of competition and predation often affects prey habitat use, which may concentrate prey in safer areas with indirect consequences on their foraging efficiency and the effects of their foraging on the community. Predation is intense on coral reefs where competition for limited space and food is severe. The sea urchin Diadema antillarum, an inhabitant of Caribbean coral reefs, uses crevice shelters and often aggregates with conspecifics for protection against predators, which appears to reflect a conflicting balance between group defense versus competition for limited shelter. A series of laboratory experiments was used to determine how the availability of …

Metformin And Erlotinib Synergize To Inhibit Basal Breast Cancer, Ying-Ka Ingar Lau, Xing Du, Vinayak Rayannavar, Benjamin Hopkins, Jacquelyn Shaw, Eliana Bessler, Tiffany Thomas, Maira M. Pires, Megan Keniry

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Basal-like breast cancers (BBCs) are enriched for increased EGFR expression and decreased expression of PTEN. We found that treatment with metformin and erlotinib synergistically induced apoptosis in a subset of BBC cell lines. The drug combination led to enhanced reduction of EGFR, AKT, S6 and 4EBP1 phosphorylation, as well as prevented colony formation and inhibited mammosphere outgrowth. Our data with other compounds suggested that biguanides combined with EGFR inhibitors have the potential to outperform other targeted drug combinations and could be employed in other breast cancer subtypes, as well as other tumor types, with activated EGFR and PI3K signaling. Analysis …

The Fat Of The Matter: How Dietary Fatty Acids Can Affect Exercise Performance, Barbara J. Pierce, Scott R. Mcwilliams

Biology Faculty Publications

Fatty-acid composition of fat stores affects exercise performance in a variety of vertebrates although few such studies focus on flying vertebrates such as migratory birds, which are exceptional exercisers. We first discuss the natural variation in quality of fat available in natural foods eaten by migratory birds and their behavioral preferences for specific fatty acids in these foods. We then outline three proposed hypotheses for how dietary fatty acids can affect exercise performance, and some of the evidence to date that pertains to these hypotheses with special emphasis on the exercise performance of migratory birds. In theory, selectively feeding on …

Nutrient Runoff Following Swine Manure Application, Seth J. Lamb

Department of Environmental Engineering: Theses and Other Student Research

A field study was completed to compare the effects of land application methods, swine growth stage, and varying flow rates following the application of varying amounts of swine manure to 0.75-m by 2.00-m long plots. Three different manure sources were used to represent key different growth stages including growers, finishers, and sows and gilts. The different swine manures were applied in May and Jun 2011 to meet a 1 year nitrogen (N) requirement for corn. Three different land application methods were used to apply the swine manure, broadcast, incorporation, and injection. Runoff water quality was measured during three 30 minute …

Physical, Chemical And Biological Assessment Of Yoncalla Log Ponds, Rich Miller, Mark D. Sytsma, Angela L. Strecker

Center for Lakes and Reservoirs Publications and Presentations

The Yoncalla Log Ponds are a series of four ponds located in within the city limits of the town in Yoncalla in northern Douglas County, Oregon. The ponds were created in stages between the late 1930s and the 1950s and used for log storage through the 1970s (North Douglas Betterment 2014). North Douglas Betterment purchased the land surrounding the ponds and contracted with the Center for Lakes and Reservoirs at Portland State University to assess the current morphometry, vegetation and water quality status of the ponds and provide recommendations for management of the aquatic vegetation. The scope of this document …

Lianas In Gaps Reduce Carbon Accumulation In A Tropical Forest, Stefan A. Schnitzer, Geertje M. F. Van Der Heijden, Joseph Mascaro, Walter P. Carson

Biological Sciences Faculty Research and Publications

Treefall gaps are the “engines of regeneration” in tropical forests and are loci of high tree recruitment, growth, and carbon accumulation. Gaps, however, are also sites of intense competition between lianas and trees, whereby lianas can dramatically reduce tree carbon uptake and accumulation. Because lianas have relatively low biomass, they may displace far more biomass than they contribute, a hypothesis that has never been tested with the appropriate experiments. We tested this hypothesis with an 8‐yr liana removal experiment in central Panama. After 8 years, mean tree biomass accumulation was 180% greater in liana‐free treefall gaps compared to control gaps. …

Horizontal Dispersion In Shelf Seas: High Resolution Modelling As An Aid To Sparse Sampling, Nataliya Stashchuk, Vasiliy Vlasenko, Mark E. Inall, Dmitry Aleynik

School of Biological and Marine Sciences

The ability of a hydrodynamic model to reproduce the results of a dye release experiment conducted in a wide shelf sea environment was investigated with the help of the Massachusetts Institute of Technology general circulation model (MITgcm). In the field experiment a fluorescent tracer, Rhodamine WT, was injected into the seasonal pycnocline, and its evolution was tracked for two days using a towed undulating vehicle equipped with a fluorometer and a CTD. With a 50. m horizontal resolution grid, and with three different forcings initialized in the model (viz: tides, stationary current, and wind stress on the free surface), it …

Blobs In Tartan Colours: Margaret Tait's Painted Eightsome, K Parker

School of Art, Design and Architecture

This essay explores the interplay of Julia Kristeva's concepts of semiotic and symbolic in the Orcadian film-poet Margaret Tait's direct animation film Painted Eightsome, in which the music of a Scottish reel is combined with animated artwork painted frame-by-frame onto clear 35mm film. As a creative artist, Tait used a range of forms. She wrote prose and poetry, and made short films, usually shooting on 16mm with her clockwork Bolex camera. In her cinematic work she explored an array of highly experimental techniques, including painting and scratching on the film surface, from the beginning of her filmmaking career in Italy …

Validation Of A Food Frequency Questionnaire For Vitamin D And Calcium Intake In Healthy Female College Students, Dimitrios Papandreou, Nikolaos Rachaniotis, Maryam Lari, Wafa Al Mussabi

All Works

Objective: The objective of this study was to examine the reproducibility and validity of a Food Frequency Questionnaire (FFQ) and assess calcium and vitamin D intake in health female college students. Methods: Thirty-five healthy female students were conveniently selected to participate in the study. None of the subjects were taking any supplements. The FFQ was validated against intakes from a three-day diet food record report (FR). Results: Positive correlations were observed of daily vitamin D (r = 0.82, p < 0.001) and calcium intake (r = 0.74, p < 0.001) derived from FFQ compared with the FR. The mean intake of vitamin D and calcium derived from FFQ and FR were (233 ± 90, 654 ± 391) and (231 ± 79, 611 ± 352), respectively. The FFQ overestimated vitamin D and Calcium by 2 IU /day (95% CI: –8, 9, p < 0.676 and 43 mg/d (95% CI: 20, 65, p < 0.01). Conclusions: The FFQ used in this study shows promising validation evidence to be used in the future for assessing vitamin D and calcium intakes in female students.

Palo Alto Battlefield National Historical Park Breeding Bird Monitoring Data Fy 2014, Kenneth D. Pruitt

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Data are part of the GULN Inventory and Monitoring Program Land bird monitoring project for PAAL. Data were collected by Kenneth Pruit through a cooperative agreement with GULN and UT Brownsville in 2014. A separate reference is available for the Field Sheets that accompanies this data set.

https://irma.nps.gov/DataStore/Reference/Profile/2218507

Acute Effects Of The Mid-Thigh Power Clean On The Advanced Tennis Serve, Luis A. Vial

Research Papers

Post-activation potentiation (PAP) is a phenomenon in which athletic performance is acutely enhanced after a muscle contraction (evoked or voluntary). Most studies have examined isometric maximal voluntary contraction and heavy resistance exercise as PAP inducing protocols, but minimal research exists analyzing Olympic lifting exercises. The purpose of this study was to investigate the acute PAP response of mid-thigh power clean on the tennis serve among NCAA Division I male tennis players. Tennis players (n=6) who were current roster members performed 5 tennis serves before and 4 min after one set of 5 repetitions of the mid-thigh power clean exercise at …

Depressive Symptomatology And Perceived Social Support In Adolescents With Type 2 Diabetes, Kristiana Gay Huffman Cullum Phd, Cpnp

Dissertations

Type 2 diabetes has increased dramatically in the pediatric population in the last decade. One of the comorbidities of diabetes is depression. In the presence of depression, diabetes may be mismanaged by patients and lead to a decline in health. Diabetes with comorbid depression may have better disease management outcomes in the presence of higher levels of social support. Defining childhood depression, which encompasses adolescence, and the subtleties of this disorder compared to the adult counterpart, was needed to better delineate important variables for this research study. There are several instruments that evaluate adolescents' perceived social support, but a fairly …

Germination And Persistence Of Bacillus Anthracis And Bacillus Thuringiensis In Soil Microcosms, Ah Bishop

School of Biological and Marine Sciences

AIMS: Decontaminating large, outdoor spaces of Bacillus anthracis spores presents significant problems, particularly in soil. Proof was sought that the addition of germinant chemicals could cause spores of B. anthracis and Bacillus thuringiensis, a commonly used simulant of the threat agent, to convert to the less resistant vegetative form in a microcosm. METHODS AND RESULTS: Nonsterile plant/soil microcosms were inoculated with spores of B. thuringiensis and two nonpathogenic strains of B. anthracis. A combination of L-alanine (100 mmol l(-1)) and inosine (10 mmol l(-1)) resulted in a 6 log decrease in spore numbers in both strains of B. anthracis over …

Determination Of Dissolved Iron In Seawater: A Historical Review, Paul J. Worsfold, Maeve C. Lohan, Simon J. Ussher, Andrew R. Bowie

School of Geography, Earth and Environmental Sciences

This paper overviews the evolution of suitable analytical approaches for the determination of dissolved iron in seawater. The focus is on sampling and sample treatment, detection methods and quality assurance of the data. Iron is a vital trace element for the growth of marine organisms and is the limiting micronutrient for primary production in many parts of the world's oceans. The concentration of dissolved iron in seawater therefore influences the past and present day global carbon cycle and consequently Earth's climate. Hence it is important to understand the marine biogeochemistry of iron and quantify the spatial and temporal distribution of …

Spatiotemporal Variation In Flow-Dependent Recruitment Of Long-Lived Riverine Fish: Model Development And Evaluation, Daisuke Goto, Martin J. Hamel, Jeremy J. Hammen, Mathew L. Rugg, Mark A. Pegg, Valery E. Forbes

School of Biological Sciences: Faculty Publications

Abstract Natural flow regimes can play a major role as an overarching ecosystem driver in reproduction and recruitment of riverine fishes. Human needs for freshwater however have altered hydrology of many riverine systems worldwide, threatening fish population sustainability. To understand and predict how spatiotemporal dynamics of flow regimes influence reproductive and recruitment variability, and ultimately population sustainability of shovelnose sturgeon (Scaphirhynchus platorynchus), we develop a spatially explicit (1D) individual-based population model that mechanistically (via energetics-based processes) simulates daily activities (dispersal, spawning, foraging, growth, and survival). With field observations of sturgeon and habitat conditions in a major tributary of …

Planning For Adaptation To Climate Change: Lessons From The Us National Wildlife Refuge System, Robert L. Fischman, Vicky J. Meretsky, Alexei Babko, Michael Kennedy, Lei Liu, Michelle Robinson

Articles by Maurer Faculty

US national wildlife refuges have recent, detailed management plans illustrating the state of planning for climate-change adaptation in protected areas. Discussion of and prescriptions for addressing climate change increased in refuge plans between 2005 and 2010 but decreased in 2011. The plans respond to some climate-change impacts on biodiversity and call for monitoring but with little clarity regarding how to act on monitoring results and scant attention to future changes in phenology and community composition. The threats posed by sea-level rise generated the best-developed plan prescriptions. Examples of excellent prescriptions provide models for future planning. Some decision-support tools, such as …

Fourteenth Annual Garrett Morgan Sustainable Transportation Symposium, Mti Report S-14-01, Mineta Transportation Institute

Mineta Transportation Institute

On March 27, 2014, the Mineta Transportation Institute (MTI) continued its support of the U.S. Department of Transportation’s Garrett A. Morgan Technology and Transportation Futures Program by conducting the Fourteenth Annual National Garrett Morgan Symposium and Videoconference on Sustainable Transportation. The ongoing mission of this national videoconference is to stimulate the minds of young people and to encourage them to pursue challenging academic programs including mathematics and science – an education course that will prepare students for tomorrow’s challenging transportation careers. Participating schools were: Cardozo Middle School, Washington DC; Findlay Middle School, North Las Vegas NV; Juan Crespi Middle School, …

Federal Visions Of Private Family Support, Laura A. Rosenbury

Vanderbilt Law Review

The individual states have long played a primary role in defining the legal family in the United States, with states often determining who does and does not enjoy the legal status of spouse, parent, and child. Two recent U.S. Supreme Court cases, Astrue v. Capatol and United States v. Windsor,2 acknowledged and affirmed the diverse definitions of family that flow from this federalist approach. Yet these cases do not solidify the states' place in defining family for purposes of marriage, parentage, divorce, and death. Instead, they foreshadow an increasingly federal conception of family status-a conception that values private family support …

November 2014 News Releases, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Study The Quality Of Groundwater Of Al-Zoroup Area In Mahdah State, The Sultanate Of Oman, Fahad Khalifa Rashid Al-Shidi

Theses

The groundwater is the most important source of water in the Sultanate of Oman. Accordingly, the Oman Government has paid great attention commensurate with the importance of water resource in terms of their sources, quality, and ways to rationalize consumption to remain under the term of sustainability and validity of present and future generations. This study was conducted in Al Buraymi at Mahdah State in Al-Zoroub area targete a groundwater quality for 20 wells in private farms. The water samples were taken from these wells and subjected to analysis for microbial and geochemical aspects. For this analysis, the assorted devices …

Gaze Stabilization For Humanoid Robots: A Comprehensive Framework, A Roncone, U Pattacini, G Metta, L Natale

School of Engineering, Computing and Mathematics

Gaze stabilization is an important requisite for humanoid robots. Previous work on this topic has focused on the integration of inertial and visual information. Little attention has been given to a third component, which is the knowledge that the robot has about its own movement. In this work we propose a comprehensive framework for gaze stabilization in a humanoid robot. We focus on the problem of compensating for disturbances induced in the cameras due to self-generated movements of the robot. In this work we employ two separate signals for stabilization: (1) an anticipatory term obtained from the velocity commands sent …

Not All Feminist Ideas Are Equal: Anti-Capitalist Feminism And Female Complicity, Giuliana Monteverde

Journal of International Women's Studies

This paper advocates a more explicit feminist discussion of female complicity by demonstrating that existing discourses on women’s participation in patriarchal practices are inadequate. By looking at two contemporary anti-capitalist feminist texts—One Dimensional Woman by Nina Power and Meat Market: Female Flesh under Capitalism by Laurie Penny—I show that these feminists acknowledge the disrupted sex binary, but have not produced texts that reflect this understanding. Whilst these authors admirably concern themselves with structural reasons for inequality—rather than blaming individual women—their treatment of complicit women is wavering. They are scornful of powerful American Republican women and of ‘fun’ feminists, but …

Cross-Gender Casting As Feminist Interventions In The Staging Of Early Modern Plays, Gemma Miller

Journal of International Women's Studies

This essay explores cross-gender casting of Renaissance canonical texts in modern British theatrical institutions as an act of feminist activism. Reversing early modern all-male theatrical practices, female-male re-gendering can not only interrogate the misogyny immanent in the works themselves, but also expose the ideological structures that continue to collude with these values on the contemporary stage and in society more generally. Through a comparative analysis of all-female productions such as Julius Caesar (dir. by Phyllida Lloyd, Donmar Warehouse, 2012-13) and selective cross-gendering, as exemplified in Edward II, (dir. by Joe Hill-Gibbins, The National Theatre, 2013), I argue that cross-gender …

Nicholson Lecture, The Rockefeller University

Posters

Camilla Sjögren, Ph.D.

Connecting Chromosome Replication and Segregation: DNA Topology and SMC Complexes

Using Multi-Compartment Ensemble Modeling As An Investigative Tool Of Spatially Distributed Biophysical Balances: Application To Hippocampal Oriens-Lacunosum/Moleculare (O-Lm) Cellns, Vladislav Sekulic, J. Josh Lawrence, Frances K. Skinner

Biomedical and Pharmaceutical Sciences Faculty Publications

Multi-compartmental models of neurons provide insight into the complex, integrative properties of dendrites. Because it is not feasible to experimentally determine the exact density and kinetics of each channel type in every neuronal compartment, an essential goal in developing models is to help characterize these properties. To address biological variability inherent in a given neuronal type, there has been a shift away from using hand-tuned models towards using ensembles or populations of models. In collectively capturing a neuron’s output, ensemble modeling approaches uncover important conductance balances that control neuronal dynamics. However, conductances are never entirely known for a given neuron …

Usage Of E-Resources: Virtual Value Of Demographics, Sue Samson

Mansfield Library Faculty Publications

The focus of this study was to identify: 1) usage of library e-resources by faculty and staff affiliation and status to identify research and teaching needs; 2) usage of library e-resources by student major, status, gender, registered disability and registered veteran to establish best outreach practices and areas that need service improvement and collection development in support of student learning; and 3) the correlation between use of library e-resources and student attainment as defined by grade point average (GPA). Demographic data was collected for these users based on their university NetID logins. The findings in this study conclusively document that …

The Health Advantage Of A Vegan Diet: Exploring The Gut Microbiota Connection, Marian Glick-Bauer, Ming-Chin Yeh

Publications and Research

This review examines whether there is evidence that a strict vegan diet confers health advantages beyond that of a vegetarian diet or overall healthy eating. Few studies include vegan subjects as a distinct experimental group, yet when vegan diets are directly compared to vegetarian and omnivorous diets, a pattern of protective health benefits emerges. The relatively recent inclusion of vegan diets in studies of gut microbiota and health allows us the opportunity to assess whether the vegan gut microbiota is distinct, and whether the health advantages characteristic of a vegan diet may be partially explained by the associated microbiota profile. …

Finding Funding For Your Research, Sarah Pratt

Research and Dessert

This session provided information on a variety of resources and strategies for conducting external funding searches. Participants were introduced to online funding search databases, as well as other tools for finding funding opportunities.

Pbio Colloquium: ‘Wall Associated Kinases As Pectin Receptors Mediate Both Growth And Stress Responses By Distinct Pathways,’ Oct. 31, Ohio University College Of Arts & Sciences

All Forum Articles

No abstract provided.

Harbor Notes, October 31, 2014, Jessica Blais

Harbor Notes

The October 31, 2014, issue of Harbor Notes.