Digital Commons Network^™

Resource Provisioning In Large-Scale Self-Organizing Distributed Systems, M. Brent Reynolds

Theses and Dissertations

This dissertation researches the mathematical translation of resource provisioning policy into mathematical terms and parameters to solve the on-line service placement problem. A norm called the Provisioning Norm is introduced. Theorems presented in the work show the Provisioning Norm utility function and greedy, random, local search effectively and efficiently solve the on-line problem. Caching of placements is shown to reduce the cost of change but does not improve response time performance. The use of feedback control theory is shown to be effective at significantly improving performance but increases the cost of change. The theoretical results are verified using a decentralized, …

Collective Behavior In The Spatial Spreading Of Obesity, Lazaros K. Gallos, Pablo Barttfeld, Shlomo Havlin, Mariano Sigman, Hernán A. Makse

Publications and Research

Obesity prevalence is increasing in many countries at alarming levels. A difficulty in the conception of policies to reverse these trends is the identification of the drivers behind the obesity epidemics. Here, we implement a spatial spreading analysis to investigate whether obesity shows spatial correlations, revealing the effect of collective and global factors acting above individual choices. We find a regularity in the spatial fluctuations of their prevalence revealed by a pattern of scale-free long-range correlations. The fluctuations are anomalous, deviating in a fundamental way from the weaker correlations found in the underlying population distribution indicating the presence of collective …

The Inkwell, Armstrong Atlantic State University

The Inkwell

No abstract provided.

Cumulative Risk And A Call For Action In Environmental Justice Communities, H. P. Hynes, Russ Lopez

Journal of Health Disparities Research and Practice

Health disparities, social inequalities, and environmental injustice cumulatively affect individual and community vulnerability and overall health; yet health researchers, social scientists and environmental scientists generally study them separately. Cumulative risk assessment in poor, racially segregated, economically isolated and medically underserved communities needs to account for their multiple layers of vulnerability, including greater susceptibility, greater exposure, less preparedness to cope, and less ability to recover in the face of exposure. Recommendations for evidence-based action in environmental justice communities include: reducing pollution in communities of highest burden; building on community resources; redressing inequality when doing community-based research; and creating a screening framework …

So That The People May Live (Hecel Lena Oyate Ki Nipi Kte): Lakota And Dakota Elder Women As Reservoirs Of Life And Keepers Of Knowledge About Health Protection And Diabetes Prevention, Dawn W. Satterfield, John E. Shield, John Buckley, Sally T. Alive

Journal of Health Disparities Research and Practice

Around the world, Type 2 diabetes is on the rise, affecting adults and youth from societies in the throes of industrialization. Over time, uncontrolled diabetes can leave in its wake people facing renal failure, blindness, and heart disease, and communities daunted by new, chaotic phenomena. Westernized lifestyles are a recognized explanation for the escalating prevalence. The web of causation, however, may be broader and thicker, woven by complex interactions with environmental, sociological, and historical roots. The purpose of this participatory ethnographic study was to document, understand, and support Lakota and Dakota elder women’s beliefs and knowledge about health protection and …

Judicial Limitations On The Rights Of Adopted Children To Inherit From Their Natural Relatives As Issue: In Re Best, John J. Crowe

St. John's Law Review

No abstract provided.

Equal Opportunity To Harass, Unequal Burdens Of Proof: Affirming The Equal Opportunity Defense, Todd J. Clark

Tennessee Journal of Race, Gender, & Social Justice

No abstract provided.

Empirical And Theoretical Analysis Of Complex Systems, Guannan Zhao

Open Access Dissertations

This thesis is an interdisciplinary work under the heading of complexity science which focuses on an arguably common "hard" problem across physics, finance and biology [1], to quantify and mimic the macroscopic "emergent phenomenon" in largescale systems consisting of many interacting "particles" governed by microscopic rules. In contrast to traditional statistical physics, we are interested in systems whose dynamics are subject to feedback, evolution, adaption, openness, etc. Global financial markets, like the stock market and currency market, are ideal candidate systems for such a complexity study: there exists a vast amount of accurate data, which is the aggregate output of …

A Gutsy Way To Extend Longevity, Ryan P. Rogers, Blanka Rogina

UCHC Articles - Research

The studies conducted by Rera et al. successfully demonstrate a new role for dPGC-1 and mitochondrial biogenesis in ISC homeostasis and longevity. How does it all work? dPGC-1 overexpression increases levels of anti-oxidative enzymes to decrease oxidative damage and conserve ISC homeostasis. Preserved ISC homeostasis is required for gut maintenance, which is necessary for normal energy supply and/or prevention of microbial or toxin overload. All of these factors may contribute to delaying the onset of age related phenotypes. As Zhou et al. (2011) suggested, it is also possible that an unknown factor/s released by PGC-1 overexpression in ISCs/EBs regulates longevity …

Global Approaches To The Role Of Mirnas In Drug-Induced Changes In Gene Expression, Jodi E. Eipper-Mains, Betty A. Eipper, Richard E. Mains

UCHC Articles - Research

Neurons modulate gene expression with subcellular precision through excitation-coupled local protein synthesis, a process that is regulated in part through the involvement of microRNAs (miRNAs), a class of small non-coding RNAs. The biosynthesis of miRNAs is reviewed, with special emphasis on miRNA families, the subcellular localization of specific miRNAs in neurons, and their potential roles in the response to drugs of abuse. For over a decade, DNA microarrays have dominated genome-wide gene expression studies, revealing widespread effects of drug exposure on neuronal gene expression. We review a number of recent studies that explore the emerging role of miRNAs in the …

Volume 103 Issue 25, Southwestern Oklahoma State University

The Southwestern - Archive

No abstract provided.

Historical Ecology With Real Numbers: Past And Present Extent And Biomass Of An Imperiled Estuarine Habitat, Philine S. E. Zu Ermgassen, Mark D. Spalding, Brady Blake, Loren D. Coen, Brett Dumbauld, Kay Mcgraw, William Rodney, Jennifer L. Ruesink, Sean P. Powers, Robert Brumbaugh

Jackson Estuarine Laboratory

Historic baselines are important in developing our understanding of ecosystems in the face of rapid global change. While a number of studies have sought to determine changes in extent of exploited habitats over historic timescales, few have quantified such changes prior to late twentieth century baselines. Here, we present, to our knowledge, the first ever large-scale quantitative assessment of the extent and biomass of marine habitat-forming species over a 100-year time frame. We examined records of wild native oyster abundance in the United States from a historic, yet already exploited, baseline between 1878 and 1935 (predominantly 1885–1915), and a current …

Fecal Near Infrared Spectroscopy To Discriminate Physiological Status In Giant Pandas., Erin E. Wiedower, Andrew J. Kouba, Carrie K. Vance, Rachel L. Hansen, Jerry W. Stuth, Douglas R. Tolleson

CALS Publications

Giant panda (Ailuropoda melanoleuca) monitoring and research often require accurate estimates of population size and density. However, obtaining these estimates has been challenging. Innovative technologies, such as fecal near infrared reflectance spectroscopy (FNIRS), may be used to differentiate between sex, age class, and reproductive status as has been shown for several other species. The objective of this study was to determine if FNIRS could be similarly used for giant panda physiological discriminations. Based on samples from captive animals in four U.S. zoos, FNIRS calibrations correctly identified 78% of samples from adult males, 81% from adult females, 85% from adults, 89% …

The Challenges And Implications For Energy Education, Patrick A. Tebbe

Mechanical and Civil Engineering Department Publications

In March 2011, the Fukushima Daiichi Nuclear Power Station in Japan was hit by twin natural disasters of a 9.0 earthquake and a tsunami more than 10 meters high. The combination forced a shut down of the reactor and severed externally provided power. Backup generators and batteries, which at first functioned normally, were swamped and disabled by the tsunami waters. The subsequent loss of reactor core cooling led to rising temperatures that ultimately resulted in a partial melting of the fuel rods and several hydrogen explosions (produced by a steam-zirconium reaction). Eventually, the situation was brought under control, but not …

Genetic Comparison Of Water Molds From Embryos Of Amphibians Rana Cascadae, Bufo Boreas And Pseudacris Regilla, Kori K. Ault, James E. Johnson, Holly C. Pinkart, R. Steven Wagner

All Faculty Scholarship for the College of the Sciences

Water molds that cause the disease saprolegniasis have been implicated in widespread mortality of amphibian embryos. However, because of the limitations of traditional identification methods, water mold species involved in die-offs or utilized in ecological studies often remain unidentified or identified only as Saprolegnia ferax. Furthermore, water mold taxonomy requires revision, so very distinct organisms may all be called S. ferax. Recent DNA-based studies indicate that the diversity of water molds infecting amphibian embryos is significantly higher than what was previously known, but these studies rely on culture methods, which may be biased towards taxa that grow best …

Mapping Creativity: An A/R/Tographic Look At The Artistic Process Of High School Students, Bart Andrus Francis

Theses and Dissertations

A high school visual art educator, along with 20 students enrolled in this teacher/researcher's Advanced Placement (AP) studio course, investigated the processes involved in creating artwork. Understanding artistic processes beyond skills and techniques is significant for curriculum development, but it is also key in conceptualizing art as a way of knowing. The arts based research strategy utilized in this study was a/r/tography, which focuses on the interconnectedness between artist, researcher, and teacher/learner. This highly reflective form of action research allowed the researcher and students to uncover new understandings of what it means to be an artist-researcher through a combination of …

State Dept. Of Health And Welfare V. Slane Clerk's Record Dckt. 39766-2012

Idaho Supreme Court Records & Briefs, All

No abstract provided.

June 13, 2012 Faculty Senate Minutes, University Of South Carolina

Faculty Senate

No abstract provided.

Phylogeny And Biogeography Of The Carnivorous Plant Family Sarraceniaceae, Aaron M. Ellison, Elena D. Butler, Emily Jean Hicks, Robert F. C. Naczi, Patrick J. Calie, Charles D. Bell, Charles C. Davis

Regulatory Services Faculty Publications

The carnivorous plant family Sarraceniaceae comprises three genera of wetland-inhabiting pitcher plants: Darlingtonia in the northwestern United States, Sarracenia in eastern North America, and Heliamphora in northern South America. Hypotheses concerning the biogeographic history leading to this unusual disjunct distribution are controversial, in part because genus- and species-level phylogenies have not been clearly resolved. Here, we present a robust, species-rich phylogeny of Sarraceniaceae based on seven mitochondrial, nuclear, and plastid loci, which we use to illuminate this family's phylogenetic and biogeographic history. The family and genera are monophyletic: Darlingtonia is sister to a clade consisting of Heliamphora+Sarracenia. Within Sarracenia, two …

The Importance Of The Rotor In Hydrazone-Based Molecular Switches, Xin Su, Timo Lessing, Ivan Aprahamian

Dartmouth Scholarship

The pH-activated E/Z isomerization of a series of hydrazone-based systems having different functional groups as part of the rotor (R = COMe, CN, Me, H), was studied. The switching efficiency of these systems was compared to that of a hydrazone-based molecular switch (R = COOEt) whose E/Z isomerization is fully reversible. It was found that the nature of the R group is critical for efficient switching to occur; the R group should be a moderate H-bond acceptor in order to (i) provide enough driving force for the rotor to move upon protonation, and (ii) stabilize the obtained Z configuration, to …

Correlates Of Poor Health Among Orphans And Abandoned Children In Less Wealthy Countries: The Importance Of Caregiver Health, Nathan Thielman, Jan Ostermann, Kathryn Whetten, Rachel Whetten, Karen O’Donnell, Positive Outcomes For Orphans (Pofo) Research Team

Faculty Publications

Background: More than 153 million children worldwide have been orphaned by the loss of one or both parents, and millions more have been abandoned. We investigated relationships between the health of orphaned and abandoned children (OAC) and child, caregiver, and household characteristics among randomly selected OAC in five countries.

Methodology: Using a two-stage random sampling strategy in 6 study areas in Cambodia, Ethiopia, India, Kenya, and Tanzania, the Positive Outcomes for Orphans (POFO) study identified 1,480 community-living OAC ages 6 to 12. Detailed interviews were conducted with 1,305 primary caregivers at baseline and after 6 and 12 months. Multivariable logistic …

The Spinnaker [Vol. 33 No. 94], University Of North Florida

Spinnaker

Student newspaper for the UNF community.

Individual Differences In Function Learning As They Relate To The Learning Of Conceptual Information, Cynthia Fadler

All Theses and Dissertations (ETDs)

Individual differences have not often been considered within the problem-solving or concept-learning literatures despite the indication that some individuals are better able to transfer to novel problems and that manipulations in strategy can effectively increase the ability to transfer: Gick & Holyoak, 1983). Research in the function-learning domain indicates that there may be two qualitatively different types of learners: those who remember distinct example associations: exemplar learners) and others who abstract rules that govern each association: rule learners; DeLosh, Busemeyer, & McDaniel, 1997). Data from two unpublished studies: McDaniel, Cahill, Robbins, & Trumpower, 2012; Fadler, Lee, Scullin, Shelton, & McDaniel, …

The Pro-Inflammatory Contributions Of Receptors For Advanced Glycation End-Products (Rage) In Alveolar Macrophages Following Cigarette Smoke Exposure, Adam Benjamin Robinson

Theses and Dissertations

Receptors for advanced glycation end-products (RAGE) are multi-ligand cell surface receptors of the immunoglobin family expressed by epithelium and macrophages. RAGE expression increases following ligand binding and when diverse cells are exposed to a variety of insults including cigarette smoke extract (CSE). The current research sought to characterize the pro-inflammatory contributions of RAGE expressed by alveolar macrophages (AMs) following CSE exposure. Acute exposure of mice to CSE via nasal instillation revealed diminished bronchoalveolar lavage (BAL) cellularity and fewer AMs in RAGE null mice compared to controls. Primary AMs were obtained from BAL, exposed to CSE in vitro, and RNA, DNA, …

Media Meets Science: The Experience Of A Media Teacher And Science Teacher As They Implement Media Literacy In A Science Classroom, Matthew Jay Brown

Theses and Dissertations

This qualitative action research study looked at my collaboration with a science teacher as we combined a Television Production class with an Advanced Placement Environmental Science class. This cross-curricular case study explored the implementation of the principles of media literacy, defined by the National Association for Media Literacy Education, into the science classroom where media literacy has traditionally been a non-factor. The impact of media and technology on everyone's daily lives is making it necessary for us to become media literate. The use of media literacy tools and strategies in a combined media production class and an AP science class …

University Of Minnesota, Morris Receives $1.2 Million Award From Howard Hughes Medical Institute, University Relations

Campus News Archive

The University of Minnesota, Morris is one of 47 small undergraduate colleges and universities in the United States to receive a grant from the Howard Hughes Medical Institute (HHMI).

Gene Interaction Enrichment And Network Analysis To Identify Dysregulated Pathways And Their Interactions In Complex Diseases, Yu Liu, Mehmet Koyutürk, Jill S. Barnholtz-Sloan, Mark R. Chance

Faculty Scholarship

Background: The molecular behavior of biological systems can be described in terms of three fundamental components: (i) the physical entities, (ii) the interactions among these entities, and (iii) the dynamics of these entities and interactions. The mechanisms that drive complex disease can be productively viewed in the context of the perturbations of these components. One challenge in this regard is to identify the pathways altered in specific diseases. To address this challenge, Gene Set Enrichment Analysis (GSEA) and others have been developed, which focus on alterations of individual properties of the entities (such as gene expression). However, the dynamics of …

Franz Marc As An Ethologist, Jean Carey

USF Tampa Graduate Theses and Dissertations

Keywords: Animalisierung, Einfühlung, Ethology,

Expressionism, Painting, German Modernism

In this study I deploy the perspective of ethology to examine Franz Marc's paintings of animals. To perceive animals ethologically means acknowledging that animals feel, think, experience, and imagine the world. Ethology has come to include interpretive pursuits as well as traditional field studies, and as I show, Marc's practice encompassed both aspects of this evolving discipline. To establish the presence of ethology in the humanities I give a "case study" of what I call "retroactive ethology" in the work of J.M. Coetzee. I present an account of Marc's deep …

Patient Care Provider Safety: Examining One Intervention To Reduce Hospital Violence, Paul Leslie Ford

USF Tampa Graduate Theses and Dissertations

Abstract

In the summer of 2009, Tampa General care providers met with Hospital Administration to express concern that violence on care units was a growing problem and making it difficult to provide quality care. Nurses stated that such violence was one important reason many of their peers choose to retire. Administration took this situation seriously and formed a committee to gather information and submit suggestions to reduce the violence. The committee consisted of representatives from several nursing units, human resources, risk management, security, and administration. Duties assigned included investigation of the actual number of reports on all units and trends. …

Hungry For Respect: Discrimination Among Adults Using Emergency Food Services, Gilbert C. Gee, Kathryn J. Lively, Larissa Larsen, Jennifer Keith, Jana Stone, Kara Macleod

Journal of Health Disparities Research and Practice

Objectives: We examined how adults using emergency food services report discrimination and how these reports may be associated with well-being.

Methods: Data come from a survey (n=318) and from five focus groups of adults using emergency food services, conducted between 2003-2004. The survey included measures derived from the Everyday Discrimination Scale and the Centers for Epidemiologic Studies Depression Scale (CES-D). Focus groups were analyzed with content analysis.

Results: The survey data suggest that everyday discrimination was associated with the CES-D, conditional on covariates. Focus group data are consistent with the survey results and suggest several avenues for future research, including …