Digital Commons Network^™

Hierarchical Structures For High Dimensional Data Analysis, Mahmoodreza Jahanseirroodsari

Doctoral Dissertations

The volume of data is not the only problem in modern data analysis, data complexity is often more challenging. In many areas such as computational biology, topological data analysis, and machine learning, the data resides in high dimensional spaces which may not even be Euclidean. Therefore, processing such massive and complex data and extracting some useful information is a big challenge. Our methods will apply to any data sets given as a set of objects and a metric that measures the distance between them.

In this dissertation, we first consider the problem of preprocessing and organizing such complex data into …

A Single Allele Of Myod Or Myf5 Is Necessary For Adult Myogenesis, Nicholas Legendre

Doctoral Dissertations

MyoD or Myf5’s requirement for developmental myogenesis has been well established. However, their roles in adult myogenesis, regeneration after injury, were not precisely known due to the perinatal lethality of MyoD-null and Myf5-null mice. To circumvent that we created a conditional floxed allele of MyoD, MyoD^cKO, that together with CreER allows temporal control of MyoD deletion. This combined with other mutant alleles of MyoD and Myf5, as well as Pax7^CreER, allows us to efficiently delete MyoD and Myf5 in satellite cells, the indispensable adult skeletal muscle stem cell.

Using this system, …

Fabrication And Characterization Of Centrifugally Spun Poly(Acrylic Acid) Nanofibers, David De La Garza, Francisco De Santiago, Luis Materon, Mircea Chipara, Mataz Alcoutlabi

Mechanical Engineering Faculty Publications

The production of poly(acrylic acid) (PAA) nanofibers by the centrifugal spinning of PAA solutions in water is reported. The effect of the spinneret rotational speed and concentration of PAA solutions on the diameter of nanofibers and on their quality (assessed by the absence of beads) is discussed. The main physical properties of PAA such as glass-transition temperature (Tg) are studied in detail and compared to the feature of the as-received homopolymer. It is shown that the glass-transition temperature of the bulk PAA and PAA nanofibers (as measured by differential scanning calorimetry) depends on the heating rate according …

Near-Field Mean Flow Dynamics Of A Cylindrical Canopy Patch Suspended In Deep Water, Jian Zhou, Subhas K. Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The time-averaged flow dynamics of a suspended cylindrical canopy patch with a bulk diameter of D is investigated using large-eddy simulations (LES). The patch consists of Nc constituent solid circular cylinders of height h and diameter d, mimicking patchy vegetation suspended in deep water (H/h ≫ 1, where H is the total flow depth). After validation against published data, LES of a uniform incident flow impinging on the canopy patch was conducted to study the effects of canopy density (0.16 ≤ φ = Nc(d/D)² ≤ 1, by varying Nc) and bulk aspect ratio (0.25 ≤ AR = h/D ≤ …

A Bucket Half Empty: A Critique Of The Notion Of Sustainable Development As A Paradigm For Environmental Sustainability, Abundio R. Babor

Landas

Addressing the critical degradation of the global biosphere and ecosystems driven by relentless economic development, this paper offers a vital critique of modern ecological policies. While frameworks like those from the 1992 Earth Summit aimed to reconcile economic growth with environmental conservation and resource equity, Babor argues that these strategies remain fundamentally inadequate for protecting the planet's non- renewable assets. Ultimately, the paper contends that the unbridled exploitation of finite resources inherently undermines the earth's capacity for regeneration, challenging the long-term viability of current sustainable development paradigms.

The Microbiome Stress Project: Toward A Global Meta-Analysis Of Environmental Stressors And Their Effects On Microbial Communities, Jennifer D. Rocca, Marie Simonin, Joanna R. Blaszczak, Jessica G. Ernakovich, Sean M. Gibbons, Firas S. Midani, Alex D. Washburne

Faculty Publications

Microbial community structure is highly sensitive to natural (e.g., drought, temperature, fire) and anthropogenic (e.g., heavy metal exposure, land-use change) stressors. However, despite an immense amount of data generated, systematic, cross-environment analyses of microbiome responses to multiple disturbances are lacking. Here, we present the Microbiome Stress Project, an open-access database of environmental and host-associated 16S rRNA amplicon sequencing studies collected to facilitate cross-study analyses of microbiome responses to stressors. This database will comprise published and unpublished datasets re-processed from the raw sequences into exact sequence variants using our standardized computational pipeline. Our database will provide insight into general response patterns …

Atomic Force Microscopy Tip-Enhanced Laser Ablation, Fan Cao

LSU Doctoral Dissertations

In the present work, an apertureless atomic force microscope (AFM) tip-enhanced laser ablation (TELA) system was developed and investigated. An AFM was coupled to an optical parametric oscillator (OPO) wavelength tunable laser for sample ablation with a submicron sampling size. The AFM was used to image the surface and hold the AFM tip 10 nm above the sample surface. The AFM tip is coated with a layer of gold with a thickness of 35 nm. The incident laser wavelength was tuned in the visible and near-infrared (IR) region and focused on the AFM tip. With the tip-enhancement effect, ablation craters …

Influence Of Ict Skills On The Utilization Of Electronic Information Resources (Eirs) Among Undergraduates Of Covenant University, Ota. Ogun State. South West Nigeria., Oludayo Babalola

Library Philosophy and Practice (e-journal)

Abstract

This study assessed the impact of ICT Skills on the utilization of electronic information resources in Covenant University by undergraduates. Libraries generally, are now investing greatly on electronic information resources and there is a great need to study the use of electronic information resources to justify the investment. On this background, this study set to investigate the influence of ICTS skills on use e-information resources by undergraduates of covenant university, Ota, Ogun State, Nigeria. Descriptive survey research design was adopted for the study. The population of this study includes undergraduates library users from 100 to 500 in Covenant University. …

Development And Evaluation Of Quercetin Dispersible Tablets, Roopali M. Shetake, Basavaraj V. Nanjwade, Arindam Basu Sarkar, Kishor A. Bellad

Manipal Journal of Pharmaceutical Sciences

No abstract provided.

Deciphering The Role Of Bixin Isolated From Bixa Orellana L., In Epileptic And Psychotic Experimental Models In Rodents, Potraj B, Mansoor Ahamed Sayed, Shravan Narasimha, Suhas D. S, Veerapur V. P, Vijayakumar S

Manipal Journal of Pharmaceutical Sciences

No abstract provided.

The Collegian: January 09, 2019, The Collegian Staff, South Dakota State Unversity

The Collegian, 2018-2019

Volume: 134

Issue: 13

Fabrication Of Miniaturized Paper-Based Microfluidic Devices (Micropads), E. Brandon Strong, Spencer A. Schultz, Andres Martinez, Nathaniel W. Martinez

Chemistry and Biochemistry

Microfluidic paper-based analytical devices (microPADs) are emerging as cost-effective and portable platforms for point-of-care assays. A fundamental limitation of microPAD fabrication is the imprecise nature of most methods for patterning paper. The present work demonstrates that paper patterned via wax printing can be miniaturized by treating it with periodate to produce higher-resolution, high-fidelity microPADs. The optimal miniaturization parameters were determined by immersing microPADs in various concentrations of aqueous sodium periodate (NaIO₄) for varying lengths of time. This treatment miniaturized microPADs by up to 80% in surface area, depending on the concentration of periodate and length of the reaction …

Differential Binding Of Tetrel-Bonding Bipodal Receptors To Monatomic And Polyatomic Anions, Steve Scheiner

Chemistry and Biochemistry Faculty Publications

Previous work has demonstrated that a bidentate receptor containing a pair of Sn atoms can engage in very strong interactions with halide ions via tetrel bonds. The question that is addressed here concerns the possibility that a receptor of this type might be designed that would preferentially bind a polyatomic over a monatomic anion since the former might better span the distance between the two Sn atoms. The binding of Cl⁻ was thus compared to that of HCOO⁻, HSO₄⁻, and H₂PO₄⁻ with a wide variety of bidentate receptors. A pair …

Nqpi Poster Competition Video Spotlights Student Research, Ohio University College Of Arts & Sciences

All Forum Articles

No abstract provided.

Radiation Dose Estimation By Completely Automated Interpretation Of The Dicentric Chromosome Assay, Peter Rogan, Yanxin Li, Ben Shirley, Ruth Wilkins, Farrah Norton, Joan Knoll

Biochemistry Publications

Accuracy of the automated dicentric chromosome (DC) assay relies on metaphase image selection. This study validates a software framework to find the best image selection models that mitigate inter-sample variability. Evaluation methods to determine model quality include the Poisson goodness-of-fit of DC distributions for each sample, residuals after calibration curve fitting and leave-one-out dose estimation errors. The process iteratively searches a pool of selection model candidates by modifying statistical and filter cut-offs to rank the best candidates according to their respective evaluation scores. Evaluation scores minimize the sum of squared errors relative to the actual radiation dose of the calibration …

Prenatal Iron Deficiency And Replete Iron Status Are Associated With Adverse Birth Outcomes, But Associations Differ In Ghana And Malawi, Brietta M. Oaks, Josh M. Jorgensen, Lacey M. Baldiviez, Seth Adu-Afarwuah, Ken Maleta, Harriet Okronipa, John Sadalaki, Anna Lartey, Per Ashorn, Ulla Ashorn, Stephen Vosti, Lindsay H. Allen, Kathryn G. Dewey

Nutrition Faculty Publications

Background

Previous literature suggests a U-shaped relation between hemoglobin concentration and adverse birth outcomes. There is less evidence on associations between iron status and birth outcomes.

Objective

Our objective was to determine the associations of maternal hemoglobin concentration and iron status with birth outcomes.

Methods

We conducted a secondary data analysis of data from 2 cohorts of pregnant women receiving iron-containing nutritional supplements (20–60 mg ferrous sulfate) in Ghana (n = 1137) and Malawi (n = 1243). Hemoglobin concentration and 2 markers of iron status [zinc protoporphyrin and soluble transferrin receptor (sTfR)] were measured at ≤20 weeks and …

Wgss Panel Discusses Reproductive Health Hard Questions, Ohio University College Of Arts & Sciences

All Forum Articles

No abstract provided.

Bulk Density And Porewater Data Collected Onboard R/V Weatherbird Ii Cruises Wb-0813 And Wb-1405 In The Northern Gulf Of Mexico From 2013-08-15 To 2013-09-27, Gregg R. Brooks, Rebekka A. Larson

C-IMAGE data

This dataset reports measurement of sediment sample wet weight (g) and dry weight (g) for core sub-samples at 2mm sampling intervals for “surficial unit” and 5mm sampling resolution intervals to the base of cores. Bulk density is the dry weight per sampling volume expressed as g/cm3. The dataset also reports percent porewater. The sediment cores were collected onboard the R/V Weatherbird II cruises WB-0813 and WB-1405 in the northern Gulf of Mexico from 2013-08-15 to 2013-09-27. Chief scientists for these cruises were Dr. Steve Murawski and Dr. David Hollander for WB-0813, and Oscar Garcia for WB-1405. The objective of cruise …

Acoustic Documentation Of Temperate Odontocetes In The Bering And Chukchi Seas, Kerri D. Seger, Jennifer L. Miksis-Olds

Center for Coastal and Ocean Mapping

No abstract provided.

Global Patterns And Drivers Of Ecosystem Functioning In Rivers And Riparian Zones, Scott D. Tiegs, Clay Arango

All Faculty Scholarship for the College of the Sciences

River ecosystems receive and process vast quantities of terrestrial organic carbon, the fate of which depends strongly on microbial activity. Variation in and controls of processing rates, however, are poorly characterized at the global scale. In response, we used a peer-sourced research network and a highly standardized carbon processing assay to conduct a global-scale field experiment in greater than 1000 river and riparian sites. We found that Earth’s biomes have distinct carbon processing signatures. Slow processing is evident across latitudes, whereas rapid rates are restricted to lower latitudes. Both the mean rate and variability decline with latitude, suggesting temperature constraints …

Injectable, Magnetically Orienting Electrospun Fiber Conduits For Neuron Guidance, Christopher D.L. Johnson, Debmalya Ganguly, Jonathan M. Zuidema, Thomas J. Cardinal, Alexis M. Ziemba, Kathryn R. Kearns, Simon M. Mccarthy, Deanna M. Thompson, Ganpati Ramanath, Diana A. Borca-Tasciuc, Silvio Dutz, Ryan J. Gilbert

Chemical and Biochemical Engineering Faculty Research & Creative Works

Magnetic electro spun fibers are of interest for minimally invasive biomaterial applications that also strive to provide cell guidance. Magnetic electro spun fibers can be injected and then magnetically positioned in situ, and the aligned fiber scaffolds provide consistent topographical guidance to cells. In this study, magnetically responsive aligned poly-l-lactic acid electro spun fiber scaffolds were developed and tested for neural applications. Incorporating oleic acid-coated iron oxide nanoparticles significantly increased neurite outgrowth, reduced the fiber alignment, and increased the surface nano topography of the electro spun fibers. After verifying neuron viability on two-dimensional scaffolds, the system was tested as an …

Whooping Crane Use Of Riverine Stopover Sites, David M. Baasch, Patrick D. Farrell, Shay Howlin, Aaron T. Pearse, Jason M. Farnsworth, Chadwin B. Smith

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Migratory birds like endangered whooping cranes (Grus americana) require suitable nocturnal roost sites during twice annual migrations. Whooping cranes primarily roost in shallow surface water wetlands, ponds, and rivers. All these features have been greatly impacted by human activities, which present threats to the continued recovery of the species. A portion of one such river, the central Platte River, has been identified as critical habitat for the survival of the endangered whooping crane. Management intervention is now underway to rehabilitate habitat form and function on the central Platte River to increase use and thereby contribute to the survival of whooping …

Modeling Effects Of Crop Production, Energy Development And Conservation-Grassland Loss On Avian Habitat, Jiill A. Shaffer, Cali L. Roth, David M. Mushet

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Birds are essential components of most ecosystems and provide many services valued by society. However, many populations have undergone striking declines as their habitats have been lost or degraded by human activities. Terrestrial grasslands are vital habitat for birds in the North American Prairie Pothole Region (PPR), but grassland conversion and fragmentation from agriculture and energy-production activities have destroyed or degraded millions of hectares. Conservation grasslands can provide alternate habitat. In the United States, the Conservation Reserve Program (CRP) is the largest program maintaining conservation grasslands on agricultural lands, but conservation grasslands in the PPR have declined by over 1 …

Daily Eastern News: January 09, 2019, Eastern Illinois University

January

No abstract provided.

Marxist Education Across The Generations: A Dialogue On Education, Time, And Transhumanism, Derek Ford

Education Studies Faculty publications

No abstract provided.

Practitioner To Professor: Joys, Challenges, And Thriving In The Transition, Kim P. Huckstadt, Susan Alborn-Yilek, Denise Schares, David Michael Schmid

Faculty Publications

Career transitions are common and even expected in today’s society, especially for individuals who are midlife (Crane, O’Hern, & Lawler, 2009, p. 24). Utilizing a case study approach, this project discusses the experiences of four individuals who transitioned from roles as successful practitioners to university faculty members. Their joys and challenges, in addition to the implications of their experiences, are described. Finally, tips on how to successfully move from practitioner to faculty member are offered.

State V. Dempsey Respondent's Brief Dckt. 46277

Not Reported

No abstract provided.

Global Patterns And Drivers Of Ecosystem Functioning In Rivers And Riparian Zones, Scott Tiegs, David Costello, Mark W. Isken, Guy Woodward, Peter B. Mcintyre, Mark O. Gessner, Amy Marcarelli, Et. Al.

Department of Biological Sciences Publications

River ecosystems receive and process vast quantities of terrestrial organic carbon, the fate of which depends strongly on microbial activity. Variation in and controls of processing rates, however, are poorly characterized at the global scale. In response, we used a peer-sourced research network and a highly standardized carbon processing assay to conduct a global-scale field experiment in greater than 1000 river and riparian sites. We found that Earth’s biomes have distinct carbon processing signatures. Slow processing is evident across latitudes, whereas rapid rates are restricted to lower latitudes. Both the mean rate and variability decline with latitude, suggesting temperature constraints …

Csf Inflammatory Markers Differ In Gram-Positive Versus Gram-Negative Shunt Infections., Gwenn L. Skar, David C. Synhorst, Matthew Beaver, Jessica N. Snowden

Manuscripts, Articles, Book Chapters and Other Papers

Background: Cerebrospinal fluid (CSF) shunt placement is frequently complicated by bacterial infection. Shunt infection diagnosis relies on bacterial culture of CSF which can often produce false-negative results. Negative cultures present a conundrum for physicians as they are left to rely on other CSF indices, which can be unremarkable. New methods are needed to swiftly and accurately diagnose shunt infections. CSF chemokines and cytokines may prove useful as diagnostic biomarkers. The objective of this study was to evaluate the potential of systemic and CSF biomarkers for identification of CSF shunt infection.

Methods: We conducted a retrospective chart review of children with …

Anton Lavey's Satanic Philosophy: An Analysis, Gabriel Andrade

Intermountain West Journal of Religious Studies

The history of Satanism goes back to at least 2500 years. Yet, only in the seventeenth century, was the devil perceived in more sympathetic terms, in large part due to John Milton’s Paradise Lost.¹ In the twentieth century, Aleister Crowley assumed the name of “The Beast 666,” as well as owning the title of “the wickedest man in the world.”² But, it was during the second half of the twentieth century, when an openly Satanic movement arose and gained significant attention from mass media with the enigmatic and sensationalist Anton LaVey at its helm.³ In this article, …