Digital Commons Network^™

Numerical Ages Of Selected Rudist Bivalvia: Preliminary Results, Robert W. Scott

Turkish Journal of Earth Sciences

The ranges of most biostratigraphically diagnostic fossils have been calibrated to the geologic time scale in mega-annums. Five methods for integrating fossil ranges with the numerical geologic time scale are currently used: (1) species in stratigraphic positions with radiometrically dated beds; (2) strontium isotopes of unaltered shell material; (3) cyclostratigraphic frequencies of enclosing strata; (4) integration with zones and sequence stratigraphy; and (5) graphic correlation. Preliminary studies show that rudist occurrences have been calibrated in numerical ages by Sr isotopes, zonal integration and graphic correlation. Where the same species are dated by two methods, a more complete range is the …

Practical Programming With Total Functions, Karl Voelker

Theses

Functional programming offers an advantage over imperative programming: functional programs are easier to reason about and understand, which makes certain classes of errors less common. Yet, the two disciplines have some pitfalls in common: any computation, functional or not, may be non-terminating, or may terminate in a run-time error. Turner describes a discipline called ``Total Functional Programming'' (TFP) in which these pitfalls are impossible, due to some easily-checked rules which require all recursion to be done structurally. In this report, I detail my findings about the practical benefits and limitations of total functional programming, as well as the interactions which …

Polarimetric Remote Sensing System Analysis: Digital Imaging And Remote Sensing Image Generation (Dirsig) Model Validation And Impact Of Polarization Phenomenology On Material Discriminability, Chabitha Devaraj

Theses

In addition to spectral information acquired by traditional multi/hyperspectral systems, passive electro optical and infrared (EO/IR) polarimetric sensors also measure the polarization response of different materials in the scene. Such an imaging modality can be useful in improving surface characterization; however, the characteristics of polarimetric systems have not been completely explored by the remote sensing community. Therefore, the main objective of this research was to advance our knowledge in polarimetric remote sensing by investigating the impact of polarization phenomenology on material discriminability. The first part of this research focuses on system validation, where the major goal was to assess the …

A New Framework For An Electrophotographic Printer Model, Fermín A. Colón-López

Theses

Digital halftoning is a printing technology that creates the illusion of continuous tone images for printing devices such as electrophotographic printers that can only produce a limited number of tone levels. Digital halftoning works because the human visual system has limited spatial resolution which blurs the printed dots of the halftone image, creating the gray sensation of a continuous tone image. Because the printing process is imperfect it introduces distortions to the halftone image. The quality of the printed image depends, among other factors, on the complex interactions between the halftone image, the printer characteristics, the colorant, and the printing …

Systems Thinking And Theory U In Human Service Leadership, Greg S. Cassidy

Research Papers

No abstract provided.

Statistical Evaluation Of Bivariate, Ternary And Discriminant Function Tectonomagmatic Discrimination Diagrams, Surendra P. Verma

Turkish Journal of Earth Sciences

This work applies a statistical methodology involving the calculation of success rates to evaluate a total of 28 tectonomagmatic discrimination diagrams: four bivariate (Ti/Y-Zr/Y; Zr-Zr/Y; Ti/1000-V; and Nb/Y-Ti/Y); six ternary (Zr-3Y-Ti/1000; MgO-Al2O3-FeOt, Th-Ta-Hf/3; 10MnO-15P2O5-TiO2; Zr/4-Y-2Nb; and La/10-Nb/8-Y/15); and three old (Score1-Score2; F1-F2; and F2-F3) and three sets of new discriminant function diagrams (each set consisting of five DF1-DF2 type diagrams proposed during 2004-2008). I established and used extensive geochemical databases of Miocene to Recent fresh rocks from island arcs, back arcs, continental rifts, ocean-islands, and mid-ocean ridges. Rock and magma types were inferred from a SINCLAS computer program. Although some …

Statistical Evaluation Of Classification Diagrams For Altered Igneous Rocks, Surendra P. Verma, Rodolfo Rodriguez Rios, Rosalinda González-Ramírez

Turkish Journal of Earth Sciences

The International Union of Geological Sciences (IUGS) has proposed recommendations for the classification of relatively fresh volcanic rocks, but with no specific instructions for altered volcanic rocks, other than discouraging the use of the total alkalis versus silica diagram. The Nb/Y-Zr/TiO2 diagram has been in use for the classification of altered rocks now for over 30 years. Recently (during 2007) another diagram (Co-Th) has been proposed to replace this old diagram, particularly for altered arc rocks. Using an extensive database of all kinds of relatively fresh rocks from four tectonic settings (island arc, continental rift, ocean island, and mid-ocean ridge), …

Testing Miocene Remagnetization Of Bey Dağları: Timing And Amount Of Neogene Rotations In Sw Turkey, Douwe J.J. Van Hinsbergen, Mark J. Dekkers, Ayten Koç

Turkish Journal of Earth Sciences

Here we reassess the timing and amount of rotation of the eastern limb of the Aegean orocline, located in SW Turkey. The current model for this orocline involves a 25-30° counterclockwise (CCW) rotation of the Bey Dağları region, which exposes upper Cretaceous to Eocene platform carbonates and lower Miocene flysch deposits. In this model the rotation has to postdate a Miocene remagnetization, which would not exclude non-synchroneity between rotations of the western and eastern limbs of the Aegean orocline. To test this model a detailed palaeomagnetic study was conducted on lower Miocene strata in the Bey Dağları area. Two (composite) …

Petrography And Geochemistry Of The Jajarm Bauxite Ore Deposit, Northeast Iran: Implications For Source Rock Material And Ore Genesis, Dariush Esmaeily, Hosein Rahimpour-Bonab, Amir Esna-Ashari, Ali Kananian

Turkish Journal of Earth Sciences

The Jajarm bauxite deposit, northeast Iran, is the largest such deposit in Iran. The deposit is sandwiched between the Triassic Elika formation and the Jurassic Shemshak formation, housed within karstic features developed within the former unit. The deposit generally shows an internal layering defined by the following four distinct horizons (from bottom to top): (a) a lower argillaceous horizon, approximately 50-80 cm thick, is mainly composed of clay minerals that directly overlies the carbonate footwall (Elika formation); (b) a bauxitic clay layer approximately 2-3 m thick that consists mainly of hematite, kaolinite, anatase, and diaspore; (c) a red bauxite layer …

Sensitivity Analysis On Relations Between Earthquake Source Rupture Parameters And Far-Field Tsunami Waves: Case Studies In The Eastern Mediterranean Region, Seda Yolsal, Tuncay Taymaz

Turkish Journal of Earth Sciences

We present several sensitivity tests, that were applied to exhibit the effects of earthquake source rupture characteristics on amplitudes, frequency contents and arrival times of earthquake generated tsunami waves in the far field, as case studies in the eastern Mediterranean. The investigated earthquake parameters are principally epicentral location, focal mechanism parameters (strike, dip and rake angles), faulting area dimensions, maximum displacement and focal (centroid) depth. We have implemented a numerical method of TUNAMI-N2 based on non-linear shallow-water theory to obtain synthetic water surface fluctuations at selected pseudo tide gauge locations in the eastern Mediterranean. It has been observed that the …

Tsunami Hazard Assessment On The Southern Coast Of Spain, Mauricio González, Raul Medina, Maitane Olabarrieta, Luis Otero

Turkish Journal of Earth Sciences

In this study an indirect statistical method has been proposed to estimate the tsunami hazard assessment along the Alborán Sea Coast (Southeastern Spanish Coast). This method can be summarized as: (1) analysis of the global neotectonic setting, including geodynamic processes as well as seismicity of the region; (2) tsunami source model; (3) generation of a numerical data base of tsunami events using a numerical model; (4) probabilistic model based on Monte-Carlo simulations in order to generate a synthetic tsunami catalogue; and (5) a multidimensional interpolation method applied to combine the numerical data base with the synthetic catalogue to produce inundation …

Geochronological Evidence Of Pan-African Eclogites From The Central Menderes Massif, Turkey, Oberhaensli Roland, Osman Candan, Franziska Wilke

Turkish Journal of Earth Sciences

The Menderes Massif in western Anatolia documents a complex geodynamic history from Precambrian to recent. Eclogitic relics found in metagabbros in the Precambrian basement were dated by the U/Pb method. The zircon age data from granulitic (coronitic) and eclogitic metagabbros is consistent with geological constraints as well as relative and radiometric ages of the host granulitic gneisses and augen gneisses. A Pan-African intrusion age (540 Ma) of the metagabbros and a shortly later eclogite facies event (530 Ma) are inferred. This scenario fits with the geodynamic evolution deduced form the acidic country rocks of the eclogitic metagabbros. Direct links between …

Oligocene History Of The Çardak - Dazkırı Subbasin (Denizli, Sw Turkey): Integrated Molluscan And Planktonic Foraminiferal Biostratigraphy, Yeşi̇m İslamoğlu, Aynur Hakyemez

Turkish Journal of Earth Sciences

The detailed analysis of molluscan and planktonic foraminiferal fauna in the Oligocene Çardak-Dazkırı sub-basin, in northeastern Denizli provin ce (western Turkey) allowed accurate dating of the deposits, together with interpretation of their depositional environments. Gastropod, bivalve, scaphopod and planktonic foraminiferal assemblages identified in ten sections reveal a succession which was deposited between the Late Rupelian and Early Chattian. Planktonic foraminifera, documented for the first time in the basin, indicate the P19 Zone (Turborotalia ampliapertura Zone) of the Late Rupelian at the base of the succession whereas Molluscan fauna, determined for the first time in this study, assign the whole succession, …

Debrunia Occitanica Nov. Sp. (Monopleuridae) From The Early Aptian Of Se France, Mükerrem Fenerci̇-Masse, Jean-Pierre Masse

Turkish Journal of Earth Sciences

Debrunia occitanica nov. sp., described from the early Aptian platform limestones of SE France, is characterized by: a moderately convex left valve, inconspicuous radial bands and a ligament groove in a depression flanked by two longitudinal rounded edges. Debrunia occitanica nov. sp. is considered as a chronospecies belonging to a single lineage rooted in the Barremian, and including Debrunia bruni and Debrunia mutabilis. Evolutionary trends in the three species include flattening of the left valve, development of the corresponding myophores, and reduction of the radial bands. This new species has the potential to be a stratigraphic marker for the early …

Blending Rudists With Technology; Non-Destructive Examination Of The Internal And External Structures Of Rudists Using High Quality Scanning And Digital Imagery, Ann Molineux, Robert W. Scott, Jessie Maisano, Richard Ketcham, Louis Zachos

Turkish Journal of Earth Sciences

Certain formations within the Cretaceous of Texas include zones of silicified rudists. Such diagenetic alteration, combined with the timing of alteration, has preserved many structural features of the rudist suitable for computed tomography (CT scanning). The excellent density differences between those skeletal structures (silica) and the internal sediment (calcitic mud) or later crystallization (calcite), fulfill a fundamental requirement for such analysis. The Jackson School of Geosciences at The University of Texas provides access to a high resolution computed tomography scanning system. This equipment, not identical to medical scanners, provides higher resolution and sophisticated software to analyze the imagery. Several rudist …

Cyber-Communication : Can Virtual Server Technologies Serve As Effective Media Delivery Tools For Human Performance Enhancement?, James E. Dorris

Graduate Research Papers

This project involved exploring whether or not virtual server technologies are viable and effective tools for human performance enhancement. The goal of this project was to conduct a comparative analysis of three specific virtual servers (i.e., YouTube, TeacherTube, and iTunesU) to determine whether or not either of these would serve as effective assets for improving the media development and delivery capabilities of the staff and faculty members at Hawkeye Community College. Four collaborative multimedia development projects were produced, monitored and evaluated to determine the levels of consistency, reliability, and user-friendliness in departmental media delivery processes. The research team of Hawkeye's …

Designing Effective Multi-User Learning Environments To Enhance Game-Based Learning, Brian C. Johnson

Graduate Research Papers

This literature review examines the properties of specific video games, classified as multi-user learning environments, for commonalties and compares these pieces of software with sound learning theories to determine effective methods of using these types of software for educational applications. This category of software, though not initially developed as an educational learning environment or tool, has gained interest due to the social and entertainment value inherit with this type of game play. This paper reviews relevant published research material that examines the characteristics of both games created for entertainment value and games created for educational purposes to provide insights on …

English Language Learners And Their Relationship To The Middle School Library, Ann Van Treeck

Graduate Research Papers

English language learners significantly impact the deployment of resources in U.S. schools, and their numbers are growing. While this population is often at risk academically due to the rigorous subject material delivered in secondary schools, educators continue to struggle with effective pedagogy. Public libraries have studied the nuances of this sub-group and have been successful in serving immigrant populations through the decades. Therefore, this focused study examined the relationship of secondary students and their school library. This study found that ELL students access materials from special collections more frequently than from the general collection. Students reported no negative stigma associated …

Evaluating And Regulating Lead In Artificial Turf, Gregory Van Ulirsch, Kevin Gleason, Shawn Gerstenberger, Deaphne B. Moffett, Glenn Pulliam, Tariq Ahmed, Jerald Fagliano

Environmental & Global Health Faculty Research

Background: In 2007, a synthetic turf recreational field in Newark, New Jersey, was closed because lead was found in synthetic turf fibers and in surface dust at concentrations exceeding hazard criteria. Consequently, public health professionals across the country began testing synthetic turf to determine whether it represented a lead hazard. Currently, no standardized methods exist to test for lead in synthetic turf or to assess lead hazards.

Objectives: Our objectives were to increase awareness of potential lead exposure from synthetic turf by presenting data showing elevated lead in fibers and turf-derived dust; identify risk assessment uncertainties; recommend that federal and/or …

Linking Opencoursewares And Open Education Resources: Creating An Effective Search And Recommendation System, Brett E. Shelton, J. Duffin, Y. Wang, J. Ball

Instructional Technology and Learning Sciences Faculty Publications

With a growing number of digital libraries and other open education repositories being made available throughout the world, effective search and retrieval tools are necessary to access the desired materials that surpass the effectiveness of traditional, all inclusive search engines. This paper discusses the design and use of Folksemantic, a platform that integrates OpenCourseWare search, Open Educational Resource recommendations, and social network functionality into a single open source project. The paper describes how the system was originally envisioned, its goals for users, and data that provides insight into how it is actually being used. Data sources include website click-through data, …

On The Thermodynamics Of Friction And Wear-A Review, M. Amiri, Michael M. Khonsari

Faculty Publications

An extensive survey of the papers pertaining to the thermodynamic approach to tribosystems, particularly using the concept of entropy as a natural time base, is presented with a summary of the important contributions of leading researchers. © 2010 by the authors; licensee MDPI, Basel, Switzerland.

Remaking Law: Moving Beyond Enlightenment Jurisprudence, John A. Powell, Stephen M. Menendian

Saint Louis University Law Journal

No abstract provided.

Reconfiguring The Space Of Agency In The Digital Age, Peggy Reynolds

Saint Louis University Law Journal

No abstract provided.

Rhythm Syllable Pedagogy- A Historical Journey To Takadimi Via The Kodály Method, Joshua Palkki

Journal of Music Theory Pedagogy

The pedagogy of teaching rhythm, especially to beginning musicians, is a complex and fascinating yet often overlooked area of study. Said Robert Gauldin, "when listening to a piece, we frequently take for granted the regulated rhythmic foundation that underlies its melody." Rhythm gives music a sense of organization and must be methodically taught. Because a significant portion of the university music theory curriculum is devoted to teaching aural skills, further study in this area is appropriate and necessary. Like solmization systems and pitch solfège theories, rhythm pedagogy is an ever-evolving field of study. This article explores the importance of a …

Strategies For Introducing Pitch-Class Set Theory In The Undergraduate Classroom, Stanley V. Kleppinger

Journal of Music Theory Pedagogy

Even as pitch-class set theory has been widely integrated into undergraduate music theory curricula, it has remained one of the more difficult topics of the typical undergraduate program for instructors to illuminate and for students to master. A number of factors contribute to this phenomenon: the atonal repertoire for which it was devised is shunned by many students; the overt affinity with mathematics in many presentations of the theory makes it anathema to some; the theory's particular employment of inversional equivalence has no clear antecedent in musical theories already familiar to undergraduates; and the theory's jargon seems mysterious and dense …

Embodied Music Theory - New Pedagogy For Creative And Aural Development, Nicholas Bannan

Journal of Music Theory Pedagogy

This article presents a snapshot of pedagogical practice that integrates singing, expressive physical gesture, aural development, music theory and creativity. The approach it outlines forms an attempt to transcend the instructional mode by which music theory is perceived by students to be independent of musical practice, or an artificial construct by which Western Conservatoire-trained educators impose their assumptions on students who find it of limited relevance or interest. It represents a response to the position, encountered in several educational contexts internationally, whereby students whose aural and musicianship development has failed to match their performing abilities or musicological knowledge aspire to …

Is The Notion Of Mathematical Object An Historical Notion?, Marco Panza

MPP Published Research

"Both historians and philosophers of mathematics frequently speak of mathematical objects. Are they speaking of the same or of similar things? Better: are they appealing to the same notion or to similar notions?"

Undergraduate Bulletin 2010-2011, John Jay College Of Criminal Justice

College Bulletins

No abstract provided.

Phonological Awareness Program For At-Risk Elementary Students, Traci Underwood

Honors Capstones

Purpose: The purpose of this study was to determine if one component of social economic status, participation in the free/reduced lunch program, predicts fall and winter literacy benchmark test scores and to discuss the components of a phonological awareness reading program. Method: Seventy kindergarten and first grade students from Brooks Elementary in DeKalb, Illinois, participated in this study. Assessments were given to test letter naming fluency and nonsense word reading fluency. In addition, each student was categorized according to lunch status. Results: lunch status alone predicted 1% of the variability in fall letter naming status and less than 1% of …

The Efficacy Of Chemistry Outreach Programs On Middle School Students, Erica M. Dumeyer

Mahurin Honors College Capstone Experience/Thesis Projects

The current project was designed to determine if science outreach programs affect the attitude of the students toward science and increase the science content knowledge of the students participating in the program. Students from middle schools surrounding the Bowling Green area participated in the project. The data set includes a total of 850 students from 7th and 8th grade. Students were given a pre-test (taken several days before the presentation) and a post-test (taken several days after the presentation). The tests contain both subjective, affective as well as objective, content questions. The individual student pre-/post-tests were index numbered to protect …