Digital Commons Network^™

A Natural, Calcium-Rich Marine Multi-Material Complex Preserves Bone Structure, Composition And Strength In An Ovariectomized Rat Model Of Osteoporosis, Orlaith Brennan, Joseph Sweeney, Brian O'Meara, Amro Widaa, Franck Bonnier, Hugh Byrne, Denis O'Gorman, Fergal O'Brien

Articles

Calcium supplements are used as an aid in the prevention of osteopenia and osteoporosis and also for the treatment of patients when used along with medication. Many of these supplements are calcium carbonate based. This study compared a calcium-rich, marine multi-mineral complex (Aquamin) to calcium carbonate in an ovariectomised rat model of osteoporosis in order to assess Aquamin’s efficacy in preventing the onset of bone loss. Animals were randomly assigned to either non-ovariectomy control (Control), ovariectomy (OVX) plus calcium carbonate, ovariectomy plus Aquamin or ovariectomy plus Aquamin delay where Aquamin treatment started 8 weeks post OVX. At the end of …

Strengthening The Development Of The Short-Rotation Plantations Bioenergy Sector: Policy Insights From Six European Countries, Carlos Parra-Lopez, Martin Holley, Kevin Lindegaard, Samir Sayadi, Gonzalo Esteban-Lopez, Victor Duran-Zuazo, Christoph Knauer, Hans-Georg Von Engelbrechten, Ralf Winterber, Annika Henriksson, Annette Lamley, Anders Nylander, Susanne Paulrud, Pauline Leonard, Patrick Daly, Lukasz Drzewaszewski, Wojciech Rzewuski

Articles

This paper, based on a participatory methodological framework involving expert stakeholders and researchers from six European countries (Germany, Ireland, Poland, Spain, Sweden and UK), analyses the priority issues for the development of short-rotation plantations (SRP), and proposes a series of policy strategies to strengthen this development. The results indicate that there is a lack of awareness of the multifaceted benefits of SRP at the level of farmers, policy makers and public authorities. More research is required to put a value on the multifunctionality of SRP and justify its public support. Small-scale projects using established technologies are also required with energy …

The Effect Of Different Insertion Techniques On The Depth Of Cure And Vickers Surface Micro-Hardness Of Two Bulk-Fill Resin Composite Materials, Lamiaa Mahmoud Moharam, Ahmed Zohair El-Hoshy, Karim Abou-Elenein

Chemical and Biochemical Engineering Faculty Research & Creative Works

Background: The aim of this study was to evaluate the Vickers surface micro-hardness and the depth of cure of two bulk-fill resin composites and one incremental-fill resin composite. Material and Methods: Two Bulk-fill dental resin composites (X-tra Fil, Voco; Sonic-FillTM 2, Kerr Corporation) and an incremental-fill dental resin composite (Filtek™ Z250 XT, 3M ESPE) were used. Sixty cylindrical specimens of 4 mm thickness were prepared using split Teflon molds. Specimens were divided into six groups (n=10) according to the type of the material used and according to the insertion technique applied (bulk or incremental). Prepared specimens were stored dry in …

Ior Methods In Unconventional Reservoirs Of North America: Comprehensive Review, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Unconventional resources have played a significant role in changing oil industry plans recently. Shale formations in North America have huge oil in place, 900 billion barrels of recoverable oil in Bakken only. However, the predicted primary recovery is still low as less than 10%. Therefore, seeking for improved oil techniques to increase oil recovery in these complex plays is inevitable. In this paper, three stages of review have been combined to find out the applicability of the most feasible IOR methods in these unconventional reservoirs. Firstly, the most common fluid and rock properties of these reservoirs have been investigated and …

Wellbore Stability Evaluation For Mishrif Formation, Ethar H.K. Alkamil, Husam R. Abbood, Ralph E. Flori, Andreas Eckert

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

During drilling operations for the E oilfield in the Mishrif formation in southern Iraq, stuck pipe has been identified as a significant geomechanical problem for several wells. In this study, a 1-D mechanical earth model (MEM) of the Mishrif formation is compiled based on its state of stress and rock strength parameters and is utilized to assess the contribution of borehole collapse leading to the stuck pipe problems. The MEM model is based on the principal in situ stresses and their orientation obtained from wireline logs measurements, measuring while drilling (MWD), and leak off test (LOT). Rock strength properties are …

Underground Structures, Rock Structures And Rock Mechanics From Ancient Era To The Modern Age, Ebru Akiş, Özgür Satici

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Usage of underground space is an old habit for human beings since ancient era. Our ancestors have used caves as a shelter for protection from the wildlife and nature, and they excavated caves to extract valuable minerals. They also used them as sanctuaries, tombs or for storage of goods. In addition, they built tunnels to be used as assault systems or to underpass fortifications during ancient warfare. Later on, tunnels were driven to supply water to the towns or to protect the towns from floods. They also built them for communication purposes. Though not knowing the exact time when they …

St. Louis Area Earthquake Hazards Mapping Project: Seismic And Liquefaction Hazard Maps, Chris H. Cramer, Robert A. Bauer, Jaewon Chung, J. David Rogers, Larry Pierce, Vicki Voigt, Brad Mitchell, David Gaunt, Robert A. Williams, David J. Hoffman, Gregory L. Hempen, Phyllis J. Steckel, Oliver Salz Boyd, Connor M. Watkins, Kathleen B. Tucker, Natasha S. Mccallister

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

We present probabilistic and deterministic seismic and liquefaction hazard maps for the densely populated St. Louis metropolitan area that account for the expected effects of surficial geology on earthquake ground shaking. Hazard calculations were based on a map grid of 0.005°, or about every 500 m, and are thus higher in resolution than any earlier studies. To estimate ground motions at the surface of the model (e.g., site amplification), we used a new detailed near-surface shear-wave velocity model in a 1D equivalent- linear response analysis. When compared with the 2014 U.S. Geological Survey (USGS) National Seismic Hazard Model, which uses …

Enhancing Light Transmission Through A Disordered Waveguide With Inhomogeneous Scattering And Loss, Raktim Sarma, Alexey Yamilov, Hui Cao

Physics Faculty Research & Creative Works

We enhanced the total transmission of light through a disordered waveguide with spatially inhomogeneous scattering and loss by shaping the incident wavefront of a laser beam. Using an on-chip tapered lead, we were able to access all input modes in the waveguide with a spatial light modulator. The adaptive wavefront shaping resulted in selective coupling of input light to high transmission channels, which bypassed the regions of higher scattering and loss in the waveguide. Spatial inhomogeneity in scattering and loss leads to the modification of the spatial structures of transmission eigenchannels, allowing wavefront shaping to redirect the energy flux to …

Laboratory Schools Annual Report, 2016-2017, Laboratory Schools, Illinois State University

Annual Reports – Laboratory Schools

Illinois State University Laboratory Schools annual report

Paving The Randomized Gauss-Seidel, Wei Wu

Scripps Senior Theses

The Randomized Gauss-Seidel Method (RGS) is an iterative algorithm that solves overdetermined systems of linear equations Ax = b. This paper studies an update on the RGS method, the Randomized Block Gauss-Seidel Method. At each step, the algorithm greedily minimizes the objective function L(x) = kAx bk2 with respect to a subset of coordinates. This paper describes a Randomized Block Gauss-Seidel Method (RBGS) which uses a randomized control method to choose a subset at each step. This algorithm is the first block RGS method with an expected linear convergence rate which can be described by the properties of the matrix …

How "Costly" Is Healthcare For The Elderly?, Ruchika Majumdar

Scripps Senior Theses

This study focuses on the possible ways to improve healthcare services around the world, which increase the life expectancy for aging people. Utilizing a cost-effective analysis, the relationship between various healthcare expenditures and conditional life expectancy for people aged 60 and above was examined. A linear regression model was used to analyze data from 122 WHO (World Health Organization) countries obtained from the year 2000. The model included additional health-adjusted life years (HALE) at age 60 as the dependent variable and healthcare cost indicators as the independent variables. Regression results revealed that cost of healthcare was overall significant in contributing …

Freshwater Future: The Influence Of Exposure To Extreme Summer Rainfall Events On The Resistance And Recovery Patterns Of An Estuarine Seagrass, Chanelle Webster

Theses : Honours

Restoring and maintaining the ecological resilience of seagrass ecosystems will be a major challenge of the 21st century. The decline of seagrasses worldwide is attributed to the erosion or elimination of their ecological resilience driven by human impacts, extreme climate events and climate change. Ecological resilience refers to the ability of ecosystems to resist or recover from disturbances whilst maintaining their integral structure and function. Seagrass resilience is influenced by life history, meadow form (transitory or enduring) and habitat type. The purpose of this honours project was to investigate the influence of extreme climate events and meadow form on a …

The Application Of Konokol To Guitar Improvisation And Composition, Glenn Andrew Rogers

Theses: Doctorates and Masters

This dissertation is an exploration of the rhythmic concepts used in two South Indian musical theory concepts, solkattu and konokol. Konokol application largely depends on instrument limitations and musical contexts. The principle focus here is on my personal application of konokol to the guitar both through composed and improvised music. A detailed study of konokol was undertaken through private lessons in India and personal experimentation to determine how these concepts could be adapted to Western improvisation, harmony and composition, as well as right--‐hand classical guitar and plectrum techniques. This was done intuitively by exploring guitar techniques and konokol simultaneously. …

Residence Time In Coastal Canopies, Maryam Abdolahpour

Theses: Doctorates and Masters

Aquatic canopies provide important ecosystem services such as improved water quality, oxygen flux, sediment stabilisation and trapping and recycling of nutrients. The ecological health of coastal canopies and the significant ecosystem services they provide depends largely on the continuous exchange of dissolved and particulate materials across the canopy boundaries. In coastal environments, where flow is typically wavedominated, vertical mixing is believed to be the dominant process controlling residence time and, therefore, exchange. However, experiments have shown that wave-driven flows over rough boundaries, such as canopies, generate strong onshore mean currents (75% of the orbital velocity far above the canopy) near …

Ecology Of Savanna Ecosystems In Indonesia, Sutomo

Theses: Doctorates and Masters

Tropical savannas in South East Asia are important yet understudied ecosystems. In fact, the description of savanna is limited in the Indonesian Archipelago, a region which, based on climate alone, would be expected to have mostly forest. In this thesis, I compared and contrasted the vegetation characteristics of four savannas in the wetter part of the Indonesian archipelago (Java – Bali – Lombok) to understand how fire and grazing influence their dynamics, and searched for evidence of savanna origins, maintenance, invasion by exotic/woody species and possible ecosystem transitions. Vegetation surveys, remote sensing techniques and statistical models were used to spatially …

An Ecological Characterisation Of A Shallow Seasonal Claypan Wetland, Southwestern Australia, Nakisa Shahrestani

Theses: Doctorates and Masters

Perched, seasonal claypans of southwestern Australia are poorly understood in terms of their ecological character, such as relationship between hydrology and their biota. An example is Little Darkin Swamp, located on the Darling Plateau in southwestern Australia. The overall aim of this thesis was to describe its ecological character, to understand what drives this claypan system and how its ephemeral nature affects wetland processes and functions.

This study first comprised a detailed characterisation of the wetland’s attributes, following the geomorphic-hydrological approach proposed by Semeniuk and Semeniuk (2011). This revealed that its hydrology is highly dependent on rainfall, that it is …

Seagrass Halophila Ovalis Is Affected By Light Quality Across Different Life History Stages, Simone Strydom, Kathryn Mcmahon, Gary A. Kendrick, John Stratton, Paul Lavery

Research outputs 2014 to 2021

Seagrass meadows provide crucial ecosystem services to the coastal zone but are threatened globally. Seagrass loss to date has mainly been attributed to anthropogenic activities that reduce light quantity (amount of photosynthetic photon flux density), such as dredging, flooding and eutrophication. However, light quality (wavelengths of light within the visible spectrum) is also altered by these anthropogenic stressors. This study addressed the effect of light quality changes on seagrasses. Aquarium-based experiments were conducted to determine whether the seagrass Halophila ovalis (R.Br.) Hook f. responds to different light quality treatments. Separate experiments were performed in which adults, seeds or seedlings were …

A Survey Of The Prior Programming Experience Of Undergraduate Computing And Engineering Students In Ireland, Glenn Strong, Catherine Higgins, Nina Bresnihan, Richard Millwood

Articles

It has become apparent that increasing numbers of students arriving into undergraduate computing and engineering degree programmes in Irish 3^rd-level institutions have prior experience of computer programming. As the extent of this prior exposure as well as its nature, origins, and usefulness is not known beyond anecdotal evidence, an annual survey of prior programming experience of freshman undergraduates who study programming as part of their degree has been designed and administered. This paper reports on the first two years of this survey in 2015 and 2016. It found that around one third had some prior experience of programming …

Isolation And Spectroscopic Characterization Of Zn(Ii), Cu(Ii), And Pd(Ii) Complexes Of 1,3,4-Thiadiazole-Derived Ligand, Dariusz Karcz, Arkadiusz Matwijczuk, Bozena Boron, Bernadette Creaven, Leszek Fiedor, Andrzej Niewiadomy, Mariusz Gagos

Articles

A series of complexes incorporating Zn(II), Cu(II), and Pd(II) ions, and 4-(5-heptyl-1,3,4-thiadiazol-2-yl)benzene-1,3-diol (L1) as model ligand, was synthesized in order to examine the nature of potential interactions between biologically active ligands, 1,3,4-thiadiazoles and metal ions with proven biological relevance. The structures of the compounds isolated were characterized using a number of spectroscopic methods including IR, Uv–vis, AAS, steady state and time-resolved fluorescence (TRF). The results obtained suggest that the L1-Zn(II) and L1-Pd(II) complexes consist of one molecule of L1 and one acetate ion acting as ligands, while the L1-Cu(II) complex adapts a 2:1 (L1: metal) stoichiometry. The coordination of L1 …

Early Research: Becoming By Doing, Desmond H. Murray

Faculty Publications

"The overwhelming evidence from

different fields of study indicates that our high school students are not too young to research. One such study — “Scientific Thinking in Young Children: Theoretical Advances, Empirical Research, and Policy Implica - tions” — was reported by Science magazine in 2012 by Professor Alison Gopnik of the University of California, Berkeley. These studies all confirm the “ole folks tales” about the inquisitive, forever questioning and curious nature of young children. Indeed, about 400 years ago in 1620, the reputed father of the scientific method, Francis Bacon, wrote in Novum Organum that we “must become as …

Region Of Smooth Functions For Positive Solutions To An Elliptic Biological Model, Joon Hyuk Kang, Timothy Robertson

Faculty Publications

The non-existence and existence of the positive solution to the generalized elliptic model ∆u+g(u v) = 0 in Ω, ∆v+h(u, v) = 0 in Ω, u=v= 0 on∂Ω, were investigated.

Characterization Of Rectifying And Sphere Curves In R^3, Yun Myung Oh, Julie Logan

Faculty Publications

Studies of curves in 3D-space have been developed by many geometers and it is known that any regular curve in 3D space is completely determined by its curvature and torsion, up to position. Many results have been found to characterize various types of space curves in terms of conditions on the ratio of torsion to curvature. Under an extracondition on the constant curvature, Y.L. Seo and Y. M. Oh found the series solution when the ratio of torsion to curvature is a linear function. Furthermore, this solution is known to be a rectifying curve by B. Y. Chen’s work. This …

Estimates Of Life Span Of Solutions Of A Cauchy Problem, Joon Hyuk Kang

Faculty Publications

In this paper we get estimates of life span of a Cauchy problem ut(x, t) = ∆ u(x, t) +u(x, t)p, x∈Rn, t >0,u(x,0) =λφ(x), x∈Rn in terms of the positive constant parameterλ whenφ(x)∈Lq is a nonnegative bounded continuous function in Rn but not identically zero, where q is large enough. The technique we used in this paper is the Comparison Principle.

Intravenous Formulation Of Het0016 Decreased Human Glioblastoma Growth And Iimplicated Survival Benefit In Rat Xenograft Models, M Jain, N Gamage, M Alsulami, A Shankar, B Achyut, Austin Guo, A Arbab, A Arbab

NYMC Faculty Publications

Glioblastoma (GBM) is a hypervascular primary brain tumor with poor prognosis. HET0016 is a selective CYP450 inhibitor, which has been shown to inhibit angiogenesis and tumor growth. Therefore, to explore novel treatments, we have generated an improved intravenous (IV) formulation of HET0016 with HPssCD and tested in animal models of human and syngeneic GBM. Administration of a single IV dose resulted in 7-fold higher levels of HET0016 in plasma and 3.6-fold higher levels in tumor at 60 min than that in IP route. IV treatment with HPssCD-HET0016 decreased tumor growth, and altered vascular kinetics in early and late treatment groups …

Paying For Attendance: Using Incentives To Combat Chronic Absenteeism, Madeline H. Meth

Faculty Scholarship

Students with poor attendance miss opportunities to learn social and academic skills.' They perform worse on achievement tests. ² They are also less likely to graduate.³ A student who misses school in as early as the first grade is significantly more likely to eventually drop out of high school.⁴ Individuals who drop out see a significant loss in earnings and are more likely to be jobless; women who drop out make about 60% of what female high-school graduates earn, and men who do not graduate lose approximately $9,564 in annual wages. Because high-school dropouts earn less than those …

Improving The K-12 Online Course Design Review Process: Experts Weigh In On Inacol National Standards For Quality Online Courses, David Adelstein, Michael K. Barbour

Within the K-12 online learning environment there are a variety of standards that designers can utilize when creating online courses. To date, the only research-based standards available are proprietary in manner. As such, many jurisdictions have begun adopting online course design standards from the leading advocacy organization, which that have yet to be validated from a research perspective. This article reports on the second phase of a three-stage study designed to examine the validity and reliability of the iNACOL National Standards for Quality Online Courses. Phase two utilizes two groups of expert reviewers to examine and provide feedback with goal …

Site Joint Sig Symposia: A Collaboration Between The K-12 Online Learning Sig And Distance Learning Sig: How Higher Education And K-12 Online Learning Research Can Impact Each Other, Rick Ferdig, Leanna Archambault, Kerry Rice, Margaret Niess, Trisha Litz, Amy Garrett-Dikkers, Michael K. Barbour

Facilitated by Rick Ferdig of Kent State University and editor of JTATE, this Symposia brings together the work of the K-12 Online Learning SIG and the Distance Learning SIG communities and focuses on presentations from scholars in the field whose work has implications for both higher education and K-12 online learning. This Symposia will have nine panelists who will each present their work and then talk specifically about how their work can inform both K-12 and HE. Included in the list of Higher Education-focused panelists are Trisha Litz of Regis University, Maggie Niess of Oregon State University, Antoinette Davis of …

High Ability Instructional Designs And Practices In Indiana, Katelynn Moats

All-Inclusive List of Electronic Theses and Dissertations

The purpose of this qualitative case-study design was to explore the similarities and differences amongst three high ability instructional models, including self-contained classrooms, pull-out programs, and cluster grouping, as well as the Educational practices of enrichment and accelerated learning, including grade skipping and single subject acceleration. This case study focused on identifying themes between each instructional model and Educational practices in Indiana school districts, with the inclusion of interviews with high ability curriculum coordinators and the analysis of pre-existing data, indicating the effectiveness of each and the performance of students, who are immersed within high ability Educational experiences. This study …

Relationship Between Athletic Identity And Career Decision-Making Self-Efficacy Among Korean Collegiate Student Athletes, Jong Joo Moon

All-Inclusive List of Electronic Theses and Dissertations

This study explored barriers that Korean collegiate student athletes confront with regard to pursuing careers outside of professional athletics. More specifically, the purpose of the study was to identify the barriers to Korean student athletes career development, as well as to examine the relationships among the psychological constructs of athlete identity and career decision making self-efficacy. A total of 321 Korean student athletes participated in the study, including 263 men (81.9%) and 59 women (18.1%). Participants completed demographic information along with a parental influence questionnaire, the Athletic Identity Measurement Scale, Career Decision Making Self-Efficacy Scale Short Form, and two open-ended …

Response To Intervention Training: Theory Into Practice For Sixth Grade Novice Teachers In Self-Contained Classrooms, Francita Mcmichel

All-Inclusive List of Electronic Theses and Dissertations

This qualitative case study examined the experiences from the professional development provided to four novice sixth grade teachers who employ reading interventions during Tier 2. Response to Intervention (RTI) is a systematic process that provides academic reading support to students through targeted interventions. RTI, when implemented effectively, reduces the number of students being identified for special Education services. The purpose of this study was to examine the perspective of 6th grade novice teachers training in Tier 2. The four public school teachers were interviewed after school and observed during their Tier 2 intervention block. Few studies have looked at the …