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Articles 19531 - 19560 of 20073
Full-Text Articles in Entire DC Network
Warcreate And Wail: Warc, Wayback, And Heritrix Made Easy, Mat Kelly, Michael L. Nelson, Michele C. Weigle
Warcreate And Wail: Warc, Wayback, And Heritrix Made Easy, Mat Kelly, Michael L. Nelson, Michele C. Weigle
Computer Science Faculty Publications
[First slide]
The Problem
Institutional Tools, Personal Archivists
- ON YOUR MACHINE
-Complex to Operate
-Require Infrastructure
- DELEGATED TO INSTITUTIONS
-$$$
-Lose original perspective
- Locale content tailoring (DC vs. San Francisco)
- Observation Medium (PC web browser vs. Crawler)
The Genealogy Detectives: A Constitutional Analysis Of 'Familial Searching', David H. Kaye
The Genealogy Detectives: A Constitutional Analysis Of 'Familial Searching', David H. Kaye
Faculty Scholarship
“Familial searching” in law enforcement DNA databases has been pilloried as a step “towards eugenics and corruption of blood” and “lifelong genetic surveillance” that is “inconsistent with a basic pillar of American political thought.” Courts have yet to address the issue fully, but several commentators contend that the practice is unwise, unjust, or unconstitutional. This Article examines the more significant constitutional claims. It concludes that although kinship matching should not be implemented simply because it is technologically seductive, neither should it be removed from the realm of permissible law enforcement information gathering on constitutional grounds. In reaching this conclusion, the …
Development Of A Taxonomy For Key Terms In Mathematics Education And Its Use In A Digital Repository, Pedro Gómez, María C. Cañadas Dr.
Development Of A Taxonomy For Key Terms In Mathematics Education And Its Use In A Digital Repository, Pedro Gómez, María C. Cañadas Dr.
Library Philosophy and Practice (e-journal)
Although mathematics education is a young discipline, it has developed rapidly over the last 40 years. During this time, the community of mathematics education researchers, teachers’ trainers, and mathematics teachers has produced a large quantity of literature published in books, journals, and conference proceedings and on Internet, among other sources. Yet there is currently no taxonomy of key terms for the systematic classification of the documents in this discipline. In this article, we present the procedure by which we constructed a taxonomy for Funes, a digital repository of documents in mathematics education. We establish the conceptual framework on which the …
Publication Pattern Of Scientists Of Physical Research Laboratory (Prl), Ahmedabad, India, Nishtha Anilkumar
Publication Pattern Of Scientists Of Physical Research Laboratory (Prl), Ahmedabad, India, Nishtha Anilkumar
Library Philosophy and Practice (e-journal)
Physical Research Laboratory (PRL) is an institute of national repute and is being funded by Department of Space (Government of India). However, a bibliometric study measuring its research output has not been carried out yet. The present study is a step in that direction and tries to find the publication pattern of research carried out in the institute. The period covered is 1997 to 2006. The study aims to quantify the publication output of researchers at the institute, to study the productivity of scientists in PRL and to determine whether it conforms to the Lotka’s Law. It tries to discern …
Scientometric Dimension Of Research Productivity Of A Leading Private University In India, Dillip K. Swain, Dr. Bijayalaxmi Rautaray, Dr. Chandrakanta Swain
Scientometric Dimension Of Research Productivity Of A Leading Private University In India, Dillip K. Swain, Dr. Bijayalaxmi Rautaray, Dr. Chandrakanta Swain
Library Philosophy and Practice (e-journal)
The study examines the research productivity of KIIT University, Odisha, India in regard to 361 papers indexed in Scopus from the year 2000 to till February, 2013. The study attempts to measure authorship pattern, degree of collaboration, Year wise distribution of articles and corresponding citations, domain wise distribution of articles, ranking of authors, ranking of highly cited papers, collaborating countries and such other parameters. The study finds that the major chunk of research is contributed by three joint authors and the trend of collaborative research is rightly at its peak. The study further reveals that authors of this University have …
Open Access Literature Productivity Of Physics: A Doaj Perspective, Aswathy S, Gopikuttan A
Open Access Literature Productivity Of Physics: A Doaj Perspective, Aswathy S, Gopikuttan A
Library Philosophy and Practice (e-journal)
The World Wide Web has introduced new vistas for scholarly publishing which can be accessed online via internet. DOAJ is the most accepted and authoritative list of scholarly, peer-reviewed, fully Open Access journals. This study aims to analyze the contribution of open access literature in the subject physics through DOAJ. Directory of Open Access Journals covers literature contribution of a wide variety of subjects, countries and also different languages. Study analyses Indian contribution to DOAJ, institution-wise categorization, language-wise distribution.
Full Steam Ahead: Arts Integration And The Common Core, Amy Hunzelman
Full Steam Ahead: Arts Integration And The Common Core, Amy Hunzelman
Graduate Research Papers
The purpose of this study is to conduct a comprehensive literature review, examining the role of arts strategies and its effect on student and teacher learning in a kindergarten through twelfth grade school setting. Additionally, the review examined the relationship between arts teaching strategies and classroom curriculum, specifically mathematics. Do students who participate in regular art instruction (music lessons, dance class, etc.) perform better on tests? What are the effects of arts education on youth? How does arts participation impact student's empowerment and sense of accomplishment? Why are arts integration strategies in the classroom effective? And, how can movement enhance …
Digital Divide: The Roles Of Access And Self-Efficacy On College Readiness, Kristen Rojas
Digital Divide: The Roles Of Access And Self-Efficacy On College Readiness, Kristen Rojas
Graduate Student Dissertations, Theses, Capstones, and Portfolios
This study examined how the roles of computer access, demographics, and self-efficacy on college readiness mastery for high school seniors in an affluent suburb in Southeastern Florida. Data was collected from an online survey using a quasi-experimental setting and a convenient sample of 322 high school seniors at a single public high school location. Statistical analysis was done using SPSS software to determine if differences exist between access, demographics, and self-efficacy contribute to college readiness mastery.
Results from this study revealed that a digital divide existed; also, findings within groups were different for those with household income over $100,000, those …
Supramolecular Functionalization Of Single-Walled Carbon Nanotubes, Baris Yilmaz
Supramolecular Functionalization Of Single-Walled Carbon Nanotubes, Baris Yilmaz
Chemistry and Biochemistry
Single-walled carbon nanotubes (SWNTs) possess extraordinary mechanical strength, thermal and electrical conductivity. These properties make them very attractive in many applications in the fields of nanotechnology, electronics, and optics. However, most of the SWNT syntheses methods result in different types of chiralities, which determine the electronic and optical properties of the sample. Thus, it is important to selectively solubilize and purify carbon nanotubes if one wants to use them in technological applications. Selective separation of SWNTs by chirality has been the research focus of many scientists. Here, a comparative study for the solubility of SWNTs with polyaromatic hydrocarbons and conjugated …
Synthesis, Characterization, And Application Of Low And Reduced Band Gap Thieno[3,4-B]Pyrazine-Based Materials, Michael Edward Mulholland
Synthesis, Characterization, And Application Of Low And Reduced Band Gap Thieno[3,4-B]Pyrazine-Based Materials, Michael Edward Mulholland
Chemistry and Biochemistry
Conjugated polymers are a class of materials receiving significant interest due to their unique combination of optical and electronic properties found in inorganics with the flexibility and processability of traditional organic plastics. These materials have become popular in application to electronic devices such as organic photovoltaics (OPVs), organic light-emitting diodes (OLEDs), sensors, electrochromics and field effect transistors (FETs). As the energetic gap between frontier orbitals, the band gap (Eg) is largely responsible for the energetic transitions of these materials and thus tuning of this parameter is of great interest. A popular method to reducing Eg is through the use of …
Attempted Total Syntheses Of A Novel Lycopodine-Class Alkaloid And (R)-Myricanol, Compounds For The Treatment Of Alzheimer's Disease, Anthony John Ostlund
Attempted Total Syntheses Of A Novel Lycopodine-Class Alkaloid And (R)-Myricanol, Compounds For The Treatment Of Alzheimer's Disease, Anthony John Ostlund
Chemistry and Biochemistry
Alzheimer's Disease (AD) is a significant challenge to both the pharmaceutical world as well as the synthetic organic chemistry world. One of the most important problems in this field is the lack of a unified approach to the most biologically active class of natural products for the treatment of AD, the lycopodine alkaloids. Presented herein is an attempt at the total synthesis of a novel member of this family. The synthesis spans three complete generations of retrosynthesis and forward progress. In the ultimate effort, the carbon backbone of the entire lycopodine class was successfully synthesized using a 6 step process …
The Fight To Frame Privacy, Woodrow Hartzog
The Fight To Frame Privacy, Woodrow Hartzog
Faculty Scholarship
The resolution of a debate often hinges on how the problem being debated is presented. In psychology and related disciplines, this method of issue presentation is known as framing. Framing theory holds that even small changes in the presentation of an issue or event can produce significant changes of opinion. Framing has become increasingly important in discussions about privacy and security. In his new book, "Nothing to Hide: The False Tradeoff Between Privacy and Security," Daniel Solove argues that if we continue to view privacy and security as diametrically opposed to each other, privacy will always lose. Solove argues that …
Identifying Effective Strategies To Providing Technical Support To One-To-One Programs, Mark W. Thomas
Identifying Effective Strategies To Providing Technical Support To One-To-One Programs, Mark W. Thomas
All-Inclusive List of Electronic Theses and Dissertations
The problem of this study was that while one-to-one initiatives in the K-12 environment are growing, the technical support personnel that work in these environments are experiencing problems supporting these initiatives. The purposes of this study were to: (a) identify common problems of providing technical support in a one-to-one laptop program, (b) identify strategies that will help overcome the problems with providing technical support in a one-to-one laptop program, and (c) determine the effectiveness the strategies have on the technical support of a one-to-one initiative. This research was designed to be a descriptive study that uses data collection to answer …
Circuit Solutions To Compensate For Device Degradation In Analog Design In Scaled Technologies, Mark Pude
Circuit Solutions To Compensate For Device Degradation In Analog Design In Scaled Technologies, Mark Pude
Theses
The continued aggressive scaling of semiconductor devices has had detrimental effects on the performance of those devices as used in analog circuitry. Specifically, the maximum intrinsic gain (MIG) of the devices continues to degrade as the device channel lengths are reduced below 100 nm and beyond. MIG is shown to degrade from 21.6 dB in a 180 nm technology to 12.2 dB in a 65 nm technology despite the application of traditional design techniques including device size scaling and bias voltage increases. This reduction in MIG along with other process scaling effects significantly complicates the design of linear amplifiers in …
Screening For Social Emotional Difficulties Among Elementary Students: A Comparison Of Screening Methods And Teacher Perceptions, Megan Renee Kirk
Screening For Social Emotional Difficulties Among Elementary Students: A Comparison Of Screening Methods And Teacher Perceptions, Megan Renee Kirk
All-Inclusive List of Electronic Theses and Dissertations
The purpose of the proposed study was twofold. First, three methods used for screening students for emotional and behavioral difficulties were compared. These three methods consisted of two methods currently in use in the schools and one systematic universal screening process utilizing a standardized rating scale that was introduced for this research. Second, teacher perceptions about and acceptability of the systematic universal screening process were explored. The sample included 13 teachers from a rural school district in the Midwest who assessed the students in their respective classrooms in addition to completing surveys and participating in focus group interviews at the …
E-Learning Implementation Strategies For An Ict-Challenged Environment : Case Of The University Of Ghana, Legon, Isaiah T. Awidi
E-Learning Implementation Strategies For An Ict-Challenged Environment : Case Of The University Of Ghana, Legon, Isaiah T. Awidi
Theses: Doctorates and Masters
E-learning implementation in higher education continues to gain prominence in both developed and developing countries, and while most universities in ICT-rich environments are exploring different ways of using ICT and multimedia resources to enhance teaching and learning, the same cannot be said about ICT-challenged environments. Nevertheless, the question of successful and sustainable e-learning implementation continues to remain a challenge, particularly in ICT-challenged environments.
The primary purpose of this research was to examine policy and strategy issues that have influenced the process of e-learning implementation at the University of Ghana (UG), given that previous ICT and e-learning initiatives failed to improve …
Characterising The Deformation Behaviour Of Human Tooth Enamel At The Microscale, Simona O'Brien
Characterising The Deformation Behaviour Of Human Tooth Enamel At The Microscale, Simona O'Brien
Theses: Doctorates and Masters
Enamel plays an important role in tooth function. Optimal combinations of composition and structure endow enamel with unique mechanical properties that remain largely unexplored. Specifically, more detailed understanding of the loadbearing ability of enamel is needed to mimic it synthetically and to design next generation biocomposite materials. This research investigates the variables that influence deformation behaviour of tooth enamel in relation to its hierarchical structure. Initially, a new method was developed for preparing flat, finely polished tooth samples that were maintained in their normal hydrated state for nanoindentation testing. In contrast to conventional methods, which commonly utilise either inappropriate or …
An Investigation Into The Volatility And Cointegration Of Emerging European Stock Markets, Anna Golab
An Investigation Into The Volatility And Cointegration Of Emerging European Stock Markets, Anna Golab
Theses: Doctorates and Masters
This dissertation examines the interaction between European Emerging markets including cointegration, volatility, correlation and spillover effects. This study is also concerned with the process of the enlargement of the European Union and how this affects the emerging markets of newcomers. The twelve emerging markets studied are Bulgaria, the Czech Republic, Cyprus, Estonia, Hungry, Latvia, Lithuania, Malta, Poland, Romania, Slovakia and Slovenia, which are all progressing very rapidly in their reforms and domestic economic stability.
The majority of prior studies on stock market comovements and integration have concentrated on mature developed markets or the advanced emerging markets of the Czech Republic, …
Analysis And Determinants Of Sustainability Policy Choice Of Local Councils In Australia : A Test Of Stakeholder Theory, Clive P. Oliver
Analysis And Determinants Of Sustainability Policy Choice Of Local Councils In Australia : A Test Of Stakeholder Theory, Clive P. Oliver
Theses: Doctorates and Masters
Since the early 1990’s, issues of sustainability involving community, government and industry have gained momentum, and the environment has become the focus of numerous studies, such as those undertaken by Young and Hayes (2002); Yuan (2001); Staley (2006); Mellahi and Wood (2004); Hezri and Hasan (2006); Dowse 2006; Wilmhurst and Frost (2000); and Qian, Burritt and Monroe (2010). Cotter and Hannan (1999, p.11) also discussed the impetus of a United Nations summit in 1992, known as the Earth Summit, which resulted in Local Agenda 21, a blueprint for action to achieve sustainable development.
Global sustainability is currently a major focus …
Galois Theory And The Hilbert Irreducibility Theorem, Damien Adams
Galois Theory And The Hilbert Irreducibility Theorem, Damien Adams
Master's Theses
We study abstract algebra and Hilbert's Irreducibility Theorem. We give an exposition of Galois theory and Hilbert's Irreducibility Theorem: given any irreducible polynomial f(t1, t2, …, tn, x) over the rational numbers, there are an infinite number of rational n-tuples (a1, a2, …, an) such that f(a1, a2, …, an, x) is irreducible over the rational numbers.
We take a preliminary look at linear algebra, symmetric groups, extension fields, splitting fields, and the Chinese Remainder Theorem. We follow this by studying …
Effectiveness Of Peer Mentoring In First-Year Program Classrooms, Katherine Casey
Effectiveness Of Peer Mentoring In First-Year Program Classrooms, Katherine Casey
Master's Theses
First-year programs (FYPs) for college students offer extended orientation to campus resources and provide first-time freshmen with essential skills for academic success, and many believe that the effectiveness of FYPs increases with the presence of peer mentors. The present study measured the added effectiveness of peer mentoring in FYP classrooms with knowledge of campus resources as a dependent measure. Ninety one first-year students in nine sections of FYP classes participated in this quasi-experimental study. Seven of the classes had peer mentors (n = 70), and the two control classes (n = 21) did not have peer mentors in the classroom. …
Titan I Propulsion System Modeling And Possible Performance Improvements, Oreste Giusti
Titan I Propulsion System Modeling And Possible Performance Improvements, Oreste Giusti
Master's Theses
This thesis features the Titan I propulsion systems and offers data-supported suggestions for improvements to increase performance. The original propulsion systems were modeled both graphically in CAD and via equations. Due to the limited availability of published information, it was necessary to create a more detailed, secondary set of models. Various engineering equations--pertinent to rocket engine design--were implemented in order to generate the desired extra detail. This study describes how these new models were then imported into the ESI CFD Suite. Various parameters are applied to these imported models as inputs that include, for example, bi-propellant combinations, pressure, temperatures, and …
Women In Science, Technology, Engineering, And Mathematics (Stem) Fields: The Importance Of The Need To Belong And Self-Esteem On The Intention To Leave A Job, Jung Eun Lee
Master's Theses
The purpose of the study was to predict individual intentions to leave science, technology, engineering, and mathematics (STEM) field jobs. Psychological predictors were gender, the need to belong, self-esteem, perceived personal discrimination, and perceived group discrimination. We used the Amazon Mechanical Turk to recruit participants and Survey Monkey to conduct an online survey. Participants were 174 men and women who worked or studied in STEM fields. Two-step hierarchical linear regression analyses were performed to analyze the data. As a result, we found that all predictors mentioned above accounted for the variance in the intention to leave a job. Self-esteem and …
Diurnal And Nocturnal Avian Antipredator Behavior In Thermally Challenging Conditions, Jennie M. Carr
Diurnal And Nocturnal Avian Antipredator Behavior In Thermally Challenging Conditions, Jennie M. Carr
All-Inclusive List of Electronic Theses and Dissertations
Diurnal avian antipredator behavior has been the focus of much past research, yet the influence of the thermal environment on such behaviors is often overlooked. Far less is known about nocturnal avian antipredator behavior, including how these behaviors are influenced by challenging thermal environments. The first portion of my research focused on how the thermal environment influences the diurnal antipredator behavior of wintering birds while (i) exposed to high wind speeds, (ii) foraging in sunlit and shaded microhabitats, and (iii) when using thermoregulatory postures to conserve body heat. In addition to increasing convective heat loss, high wind speeds increase the …
Running On Fumes: The Destabilization Of The World's Interconnected Systems As A Result Of Unsustainable Human Proliferation On A Finite Planet, Eduardo Fradin
Running On Fumes: The Destabilization Of The World's Interconnected Systems As A Result Of Unsustainable Human Proliferation On A Finite Planet, Eduardo Fradin
All-Inclusive List of Electronic Theses and Dissertations
This thesis examines the global interconnectivity of critical and complex societal systems. Today, if consumption patterns continue to rise to unsustainable levels in concert with a soaring global population, these social and technological systems may begin to buckle, which will threaten the advancement of modern human civilization in the 21st century and beyond. The first globally-stressed system that is addressed in this paper is the global economic system. The second system I discuss is the global energy system and how it directly impacts the global economy. The following chapter looks at unsustainable population growth, freshwater scarcity, and food stresses. In …
A Comparison Study Of The Use Of Paper Versus Digital Textbooks By Undergraduate Students, James W. Johnson
A Comparison Study Of The Use Of Paper Versus Digital Textbooks By Undergraduate Students, James W. Johnson
All-Inclusive List of Electronic Theses and Dissertations
Today's undergraduate student faces many challenges. The challenges include paying for tuition and textbooks and finding a job upon graduation. These students are tech-savvy and seeking better ways to learn and retain material they learn in their classes. In addition, the textbook market is trying to evolve by serving this tech-generation through offering digital textbooks and other media-rich materials. New digital textbooks coupled with tablet e-readers are being used to help undergraduate students learn and retain information just as well as traditional paper textbooks. Undergraduate students have strong opinions about the use of paper and digital textbooks including the physical …
Foucault's Pendulum, A Classical Analog For The Electron Spin State, Rebecca Linck
Foucault's Pendulum, A Classical Analog For The Electron Spin State, Rebecca Linck
Master's Theses
Spin has long been regarded as a fundamentally quantum phenomena that is incapable of being described classically. To bridge the gap and show that aspects of spin's quantum nature can be described classically, this work uses a classical Lagrangian based on the coupled oscillations of Foucault's pendulum as an analog for the electron spin state in an external magnetic field. With this analog it is possible to demonstrate that Foucault's pendulum not only serves as a basis for explaining geometric phase, but is also a basis for reproducing a broad range of behavior from Zeeman-like frequency splitting to precession of …
Real-Time Auto Tuning Of A Closed Loop Second Order System With Internal Time Delay Using Pseudo Random Binary Sequences, David Adams
Master's Theses
This research yielded a real-time auto tuning algorithm to adaptively tune a proportional integral and derivative (PID) controller for a first or second-order system with internal time-delay. The method uses a 15-bit pseudo-random binary sequence as an input to obtain the closed-loop system impulse response while the system is operating. Time-delay is assessed by analysis of the estimated closed-loop impulse response and is used in the system model for closed-loop pole assessment. The fast fourier transform of the estimated impulse response produces an estimate of the frequency response data, and a non-linear regression optimization technique, utilizing MATLAB, identifies the closed-loop …
Phosphorus Cycling In The Sargasso Sea: Investigation Using The Oxygen Isotopic Composition Of Phosphate, Enzyme-Labeled Fluorescence, And Turnover Times, Karen Mclaughlin, Jill A. Sohm, Gregory A. Cutter, Michael W. Lomas, Adina Paytan
Phosphorus Cycling In The Sargasso Sea: Investigation Using The Oxygen Isotopic Composition Of Phosphate, Enzyme-Labeled Fluorescence, And Turnover Times, Karen Mclaughlin, Jill A. Sohm, Gregory A. Cutter, Michael W. Lomas, Adina Paytan
OES Faculty Publications
Dissolved inorganic phosphorus (DIP) concentrations in surface water of vast areas of the ocean are extremely low (<10 nM) and phosphorus (P) availability could limit primary productivity in these regions. We explore the use of oxygen isotopic signature of dissolved phosphate (δ18OPO4) to investigate biogeochemical cycling of P in the Sargasso Sea, Atlantic Ocean. Additional techniques for studying P dynamics including 33P-based DIP turnover time estimates and percent of cells expressing alkaline phosphatase (AP) activity as measured by enzyme-labeling fluorescence are also used. In surface waters, δ18OPO4 values were lower than equilibrium by 3–6%, indicative of dissolved organic phosphorous (DOP) remineralization by extracellular enzymes. An isotope mass balance model using a variety of possible combinations of …10>
Under A Pale Grey Sky: An Interactive Timeline Of Iroquoian Warfare And Its Impact On The Acceleration Of American Colonization, Thomas Weaver
Under A Pale Grey Sky: An Interactive Timeline Of Iroquoian Warfare And Its Impact On The Acceleration Of American Colonization, Thomas Weaver
Theses
Early American settlers thought the Iroquois to be a violent, forceful and barbaric amalgamation of Native American Nations. Their organization of warfare, community, and politics allowed them to remain one of the most powerful nations for many years. Conflict with other tribes was a normal part of life for the Iroquois and the surrounding nations. However, as the American settlers began moving towards the frontier, Iroquois conflicts with the Algonquian begin to rise in frequency. This led to weakening of the Iroquois population and allowed the American settlers to usurp land from the Six Nations without considerable opposition.