Digital Commons Network^™

A Biomechanical Analysis Of One-Third Tubular Plates For The Treatment Of Benign Lesions In The Distal Femur, Justin Brantley

Biomedical Engineering ETDs

The purpose of this study was to evaluate the use of one-third tubular plates for the treatment of benign defects in the medial distal metaphysis of the femur. Benign cysts are a common occurrence in long bones, and are of concern in load-bearing bones, such as the tibia and femur. These space-occupying growths are removed by curettage of the affected region. Numerous post-curettage management options have been described in the literature, which generally include filling the defect with either synthetic or biological materials. Unfortunately, complications, such as infectious disease transmission, thermal injury, and a robust inflammatory have all been reported …

Volume 106 Issue 13, Southwestern Oklahoma State University

The Southwestern - Archive

No abstract provided.

Sugar Bush Management In Ontario: Identification Of Resilient Adaptation Strategies For A Changing Climate, Kaitlin Richardson

Geography and Environmental Studies Major Research Papers

The purpose of this research is to gain a better understanding of human-facilitated silvicultural, biodiversity and genetic forest management in Ontario sugar bushes through a biogeographical lens to determine the social and ecological resilience to climate change impacts. Because sugar bushes are highly managed and therefore ecologically different than unmanaged sugar maple forests, a literature review combined with primary farm-level research will help to determine best management practices and adaptation decision-making to increase the resilience of these stands. The overarching conclusion is that maple syrup producers in Ontario need to entrench climate change objectives within forest management.

Testing Sample Stability Using Four Storage Methods And The Macroalgae Ulva And Gracilaria, Autumn Oczkowski, Carol S. Thornber, Erin E. Markham, Ryann Rossi, Amanda Ziegler, Shelby Rinehart

Biological Sciences Faculty Publications

Concern over the relative importance of different sample preparation and storage techniques frequently used in stable isotope analysis of particulate nitrogen (δ¹⁵N) and carbon (δ¹³C) prompted an experiment to determine how important such factors were to measured values in marine organisms. We stored the marine macroalgae Ulva and Gracilaria in four different ways and analyzed replicates every three months over the course of a year to assess treatment effects on stability. Treatments consisted of algae dried at 65°C, ground to a powder, and stored in a desiccator until analysis; algae left in a drying oven or …

The Bates Student - Volume 144 Number 12 - January 28, 2015, Bates College

The Bates Student

No abstract provided.

Cal Poly To Host Sustainable Grassland Ranching Presentation Feb. 3, Public Affairs Office

Press Releases

No abstract provided.

Math-Biology Seminar: Circular Statistical Methods In Dispersion Of Clusters In A Cell-Cycle Coupling Model, Jan. 28, Ohio University College Of Arts & Sciences

All Forum Articles

No abstract provided.

The Anchor, Volume 128.14: January 28, 2015, Hope College

The Anchor: 2015

The Anchor began in 1887 and was first issued weekly in 1914. Covering national and campus news alike, Hope College’s student-run newspaper has grown over the years to encompass over two-dozen editors, reporters, and staff. For much of The Anchor's history, the latest issue was distributed across campus each Wednesday throughout the academic school year (with few exceptions). In recent years The Anchor moved to monthly print issues and a more frequently updated website. The Anchor is now published in print twice per academic semester. Occasionally, the volume and/or issue numbering is irregular.

Utah State University And Nasa Launch Probes Into Northern Lights | College Of Engineering, Usu College Of Engineering

College of Engineering News

In the cold, nighttime skies over Alaska, a NASA Oriole IV suborbital sounding rocket blasted off from the Poker Flat Research Range today at 3:41 a.m. (MST) carrying six research payloads built by the Utah State University’s Space Dynamics Laboratory into the Aurora Borealis as part of NASA’s Auroral Spatial Structures Probe mission.

Collaboration For Success In Young Adults With Traumatic Brain Injury, Barbara Cechanowicz

Nursing ETDs

Aim. The aim of this study was to explore self-efficacy and success in young adult survivors of traumatic brain injury (TBI) and provide the opportunity for participants to communicate their perceptions, thoughts, emotions, and concerns. Background. Many of those affected by TBI are young adults who are establishing their social and work lives. Young adults face challenges and choices that are pivotal in establishing a course for their lifetime. Self-efficacy theory provided the conceptual framework for the study. The TBI Self-Efficacy Questionnaire and General Self-Efficacy Scale were used to measure self-efficacy, and the Glasgow Outcomes Scale-Extended was used to measure …

Trehalose Is A Chemical Attractant In The Establishment Of Coral Symbiosis, M. Hagedorn, V. Carter, N. Zuchowicz, M. Phillips, C. Penfield, B. Shamenek, Elizabeth A. Vallen, F. W. Kleinhans, K. Peterson, M. White, P. H. Yancey

Biology Faculty Works

Coral reefs have evolved with a crucial symbiosis between photosynthetic dinoflagellates (genus Symbiodinium) and their cnidarian hosts (Scleractinians). Most coral larvae take up Symbiodinium from their environment; however, the earliest steps in this process have been elusive. Here we demonstrate that the disaccharide trehalose may be an important signal from the symbiont to potential larval hosts. Symbiodinium freshly isolated from Fungia scutaria corals constantly released trehalose (but not sucrose, maltose or glucose) into seawater, and released glycerol only in the presence of coral tissue. Spawning Fungia adults increased symbiont number in their immediate area by excreting pellets of Symbiodinium, and …

Ecolunch: The Importance Of Microhabitat, Jan 28, Ohio University College Of Arts & Sciences

All Forum Articles

No abstract provided.

Seminar: Critically Endangered Tonkin Snub-Nosed Monkey, Jan. 29, Ohio University College Of Arts & Sciences

All Forum Articles

No abstract provided.

Investigating Joint Attention Behaviors And Episodes In 18-Month Toddlers Born Very Low Birth Weight Compared To Toddlers Born Normal Birth Weight, Lauren Rowell

Psychology ETDs

Background: Prior studies have shown that joint attention (JA) behaviors and episodes, which involve person-person-object awareness, serve an important role in toddlers cognitive and social development. There are two forms of JA behaviors in which a toddler can engage: responding joint attention (RJA) behavior in which the toddler shifts attention to an object to which the mother is attending, and initiating joint attention (IJA) behavior in which a toddler bids for the mother's attention around an object. If a JA behavior is responded to, it becomes a JA episode. Prior research suggests that these different JA behaviors (RJA and IJA) …

Words Flying On The Wind: Buriat Mongolian Children In A Chinese Bilingual School, Valerie Sartor

Language, Literacy, and Sociocultural Studies ETDs

This study focused on the language socialization experiences non-mainstream Indigenous Buriat youth from the Republic of Buriatia, Russian Federation, encountered as they attended a bilingual school in Hohhot, Inner Mongolia, China. They migrated in order to start language studies which would eventually allow them to study alternative Mongolian medicine in Hohhot, Inner Mongolia. Both the Russian Federation and the Republic of China are countries in transition. The Russian educational and economic systems have made dramatic changes after the fall of the Soviet Union in December 1991; currently, the economy and educational opportunities are in decline and there is a widening …

Daily Eastern News: January 28, 2015, Eastern Illinois University

January

No abstract provided.

Strongly Nonlinear Phenomena And Singularities In Optical, Hydrodynamic And Biological Systems, Sergey Dyachenko

Mathematics & Statistics ETDs

Singularity formation is an inherent feature of equations in nonlinear physics, in many situations such as in self-focusing of light nonlinearity is essential part of the model and physical events cannot be captured by linearized equations. There are nonlinear systems, such as $1$D NLSE where singularities in analytic continuation would follow a soliton solution at fixed distances and while it is true that soliton determines the position of all the singularities, it is also true that evolution of singularities determines the solution on the real axis. Before we go further to discuss $2$D problems, we want to be more specific …

Delaunay-Laguerre Geometry For Macromolecular Modeling And Implicit Solvation, Michelle Hummel

Mathematics & Statistics ETDs

We develop and implement geometric methods to study three-dimensional structures of proteins, the knowledge of which is critical to the understanding of the molecules and their interactions. Delaunay and Laguerre methods, which concern sets of overlapping spheres and their interrelationships, are well suited to the study of molecules. We discuss and implement algorithms for the calculation of molecular volume, atomic solvent accessible surface areas, their gradients and discontinuities. This is used for a detailed analysis of parameters obtained by the implicit solvation method, Semi-Explicit Assembly (SEA). We introduce the concept of Laguerre-Intersection cells which consist of the intersection of the …

A Generalized Confidence Interval Approach To Comparing Log-Normal Means, With Application, Bose Falk

Mathematics & Statistics ETDs

Generalized Confidence Intervals (GCI) can be constructed for cases where an exact confidence interval based on sufficient statistics is not available. In this thesis, we first review three existing tests for log-normal data using the GCI approach. Then we propose fiducial generalized pivotal quantities (FGPQ)-based simultaneous confidence intervals for ratios of log-normal means, and prove that the constructed confidence intervals have correct asymptotic coverage. These methods are then applied to a dataset from the Carbon Reduction Commitment Energy Efficiency Scheme (CRC) to test for differences between energy saving percentages among different groups.

South Asian Monsoon History Over The Past 60 Kyr Recorded By Radiogenic Isotopes And Clay Mineral Assemblages In The Andaman Sea, Sajid Ali, Ed C. Hathorne, Martin Frank, Daniel Gebregiorgis, Karl Stattegger, Roland Stumpf, Steffen Kutterolf, Joel E. Johnson, Liviu Giosan

Faculty Publications

The Late Quaternary variability of the South Asian (or Indian) monsoon has been linked with glacial‐interglacial and millennial scale climatic changes but past rainfall intensity in the river catchments draining into the Andaman Sea remains poorly constrained. Here we use radiogenic Sr, Nd, and Pb isotope compositions of the detrital clay‐size fraction and clay mineral assemblages obtained from sediment core NGHP Site 17 in the Andaman Sea to reconstruct the variability of the South Asian monsoon during the past 60 kyr. Over this time interval εNd values changed little, generally oscillating between −7.3 and −5.3 and the Pb isotope signatures …

Relative Abundance Of And Composition Within Fungal Orders Differ Between Cheatgrass (Bromus Tectorum) And Sagebrush (Artemisia Tridentate)-Associated Soils, Carolyn F. Weber, Gary M. King, Ken Aho

Faculty Publications

© 2015 Weber et al. Nonnative Bromus tectorum (cheatgrass) is decimating sagebrush steppe, one of the largest ecosystems in the Western United States, and is causing regional-scale shifts in the predominant plant-fungal interactions. Sagebrush, a native perennial, hosts arbuscular mycorrhizal fungi (AMF), whereas cheatgrass, a winter annual, is a relatively poor host of AMF. This shift is likely intertwined with decreased carbon (C)-sequestration in cheatgrass-invaded soils and alterations in overall soil fungal community composition and structure, but the latter remain unresolved. We examined soil fungal communities using high throughput amplicon sequencing (ribosomal large subunit gene) in the 0-4 cm and …

The Development Of Preschoolers' Living Kinds Concept: A Longitudinal Study, Jordan Tessa Margett

Psychology ETDs

The overarching goal of this study was to examine the structural organization of preschoolers living kinds concept and the nature of developmental change in that concept from roughly 3.5- to 4.5-years-old. Specifically, this study was designed to assess whether preschoolers' living kind conceptual development involves progressive elaboration of an existing biologically based skeletal framework or conceptual reorganization. Unlike previous studies, this study employed a longitudinal design, an extensive stimulus set, alternate indices of understanding, and complementary statistical analyses. Thirty-five 3.0- to 3.5-year-olds participated in four testing sessions over the course of one year; each testing session included three phases that …

Perceived Social Support And Loneliness As Predictors Of Cardiac Rehabilitation Outcomes, Elizabeth Stein

Psychology ETDs

Cardiac rehabilitation (CR) is the most common means of targeting risk factors related to cardiovascular disease, but there are still uncertainties regarding what components of CR are most essential to successful rehabilitation. The current research focuses on perceived social support and loneliness and how these psychosocial factors influence health directly or indirectly by moderating perceived stress. Patients (n= 122) who completed a 12 week CR program agreed to participate, and they completed measures at both baseline and program completion. Multiple regression was used to determine if the direct or indirect moderation model best accounts for changes in days spend exercising, …

The Antelope, University Of Nebraska At Kearney

The Antelope

No abstract provided.

Designer Receptors Enhance Memory In A Mouse Model Of Down Syndrome, Ashley M. Fortress, Eric D. Hamlett, Elena M. Vazey, Gary Aston-Jones, Wayne A. Cass, Heather A. Boger, Ann-Charlotte E. Granholm

Neuroscience Faculty Publications

Designer receptors exclusively activated by designer drugs (DREADDs) are novel and powerful tools to investigate discrete neuronal populations in the brain. We have used DREADDs to stimulate degenerating neurons in a Down syndrome (DS) model, Ts65Dn mice. Individuals with DS develop Alzheimer's disease (AD) neuropathology and have elevated risk for dementia starting in their 30s and 40s. Individuals with DS often exhibit working memory deficits coupled with degeneration of the locus coeruleus (LC) norepinephrine (NE) neurons. It is thought that LC degeneration precedes other AD-related neuronal loss, and LC noradrenergic integrity is important for executive function, working memory, and attention. …

Population Genomics Reveals Seahorses (Hippocampus Erectus) Of The Western Mid-Atlantic Coast To Be Residents Rather Than Vagrants, J. T. Boehm, John Waldman, John D. Robinson, Michael J. Hickerson

Publications and Research

Understanding population structure and areas of demographic persistence and transients is critical for effective species management. However, direct observational evidence to address the geographic scale and delineation of ephemeral or persistent populations for many marine fishes is limited. The Lined seahorse (Hippocampus erectus) can be commonly found in three western Atlantic zoogeographic provinces, though inhabitants of the temperate northern Virginia Province are often considered tropical vagrants that only arrive during warm seasons from the southern provinces and perish as temperatures decline. Although genetics can locate regions of historical population persistence and isolation, previous evidence of Virginia Province persistence is only …

Coexpression Network Analysis Of Mirna-142 Overexpression In Neuronal Cells, Ishwor Thapa, Howard S. Fox, Dhundy Raj Bastola

Interdisciplinary Informatics Faculty Publications

MicroRNAs are small noncoding RNA molecules, which are differentially expressed in diverse biological processes and are also involved in the regulation of multiple genes. A number of sites in the 3′ untranslated regions (UTRs) of different mRNAs allow complimentary binding for a microRNA, leading to their posttranscriptional regulation. The miRNA-142 is one of the microRNAs overexpressed in neurons that is found to regulate SIRT1 and MAOA genes. Differential analysis of gene expression data, which is focused on identifying up- or downregulated genes, ignores many relationships between genes affected by miRNA-142 overexpression in a cell. Thus, we applied a correlation network …

Il-1Α Signaling Is Critical For Leukocyte Recruitment After Pulmonary Aspergillus Fumigatus Challenge, Alayna K. Caffrey, Margaret M. Lehmann, Julianne M. Zickovich, Vanessa Espinosa, Kelly M. Shepardson, Christopher P. Watschke, Kimberly M. Hilmer, Arsa Thammahong, Bridget M. Barker, Amariliz Rivera, Robert A. Cramer, Joshua J. Obar

Dartmouth Scholarship

Aspergillus fumigatus is a mold that causes severe pulmonary infections. Our knowledge of how A. fumigatus growth is controlled in the respiratory tract is developing, but still limited. Alveolar macrophages, lung resident macrophages, and airway epithelial cells constitute the first lines of defense against inhaled A. fumigatus conidia. Subsequently, neutrophils and inflammatory CCR2+ monocytes are recruited to the respiratory tract to prevent fungal growth. However, the mechanism of neutrophil and macrophage recruitment to the respiratory tract after A. fumigatus exposure remains an area of ongoing investigation. Here we show that A. fumigatus pulmonary challenge induces expression of the inflammasome-dependent cytokines …

The Changing World In Microcosm: The Dying Languages Of Liberia, Sierra Leone, And Guinea, George Tucker Childs

Applied Linguistics Faculty Publications and Presentations

Observers have become increasingly aware of how the world is changing due to the forces of globalization, be it in the form of neo-colonialism, the scramble for natural resources, or the various extractive industries. The recent alarm over Ebola illustrated another pernicious fallout of increased communication and travel. The effect of globalization has also been great on indigenous peoples and their cultures, in particular on what many consider to be an integral component of culture, the local languages.

I report on recent research devoted to the documentation of endangered languages in Sierra Leone, Guinea, and Liberia (the Ebola countries). Most …

Structural Influences On The Photochemistry And Photophysical Properties Of P-Phenylene Ethynylenes: Aggregation Effects And Solvent Interactions, Eric Harris Hill

Nanoscience and Microsystems ETDs

Compounds based on the p-phenylene ethynylene backbone with pendant charged groups, known as conjugated polyelectrolytes, have been of particular interest in recent years due to their solubility in water, sensing properties, and biocidal activity against bacteria, viruses, and fungi. A series of oligomers based on these polymers were synthesized (OPEs), and several interesting questions about their photophysical and biocidal properties were raised by earlier experimental observations, which are addressed by this dissertation. The study initially focuses on the influence of the backbone length and presence of carboxyester substituents on the photophysical properties of the OPEs. Next, the photochemistry of the …