Digital Commons Network^™

Why Wiki Works: Peer Production And Making Knowledge The Wiki Way, Michael Andrew Restivo

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

With the widespread adoption of advanced information and communication technologies, the past decade has witnessed a proliferation of online organizations that aim to create public goods through voluntary collaboration among self-organized, networked individuals. This form of online collective action has been termed peer production. One of the most successful examples of peer production, and the most widely studied, is the free online encyclopedia Wikipedia, which is written in a collaborative fashion by hundreds of thousands of volunteers and used by millions of people daily. In this dissertation, I use Wikipedia as a strategic case site to critically reflect on the …

Financial Literacy And Financial Inclusion Of Women In Rural Rajasthan, Emily Levi-D'Ancona

Independent Study Project (ISP) Collection

Financial inclusion is an important step in development, as access to finances can help the poor build money and lift themselves out of poverty. In many parts of the developing world, and especially in India, microfinance is seen as a new approach to fighting poverty by bringing financial services, including low-interest loans, to the poor so that they can afford to start a business or invest and eventually gain self-sufficiency – in other words, a method of financial inclusion for the poor. However, microfinance in India cannot sufficiently reach the poor populations, especially those in rural India, and many of …

Synthesizing The Music Integration Research To Explore Five Common Themes In Intermediate Elementary Classrooms, Alexandria Harkins

HIM 1990-2015

Much scientific research has been conducted to examine the effects of music on the brain and abilities of people. The results have shown a positive correlation between music used in various ways and the abilities and skills of people, especially children. However, the use of music in the general intermediate classroom is lacking. After reviewing scientific research to provide a foundation for the study and synthesizing the five Music Integration Practices, two teachers were interviewed and observed on their use of music in their general intermediate classrooms. The interviews, observation checklists, and anecdotal notes taken by the researcher provide music …

The Search For Bose-Einstein Condensation Of Excitons In Cu2o: Exciton-Auger Recombination Versus Biexciton Formation, James P. Wolfe, Joon I. Jang

Physics, Applied Physics and Astronomy Faculty Scholarship

Excitons in high-purity crystals of Cu2O undergo a density-dependent lifetime that opposes Bose-Einstein condensation (BEC). This rapid decay rate of excitons at a density n has generally been attributed to Auger recombination having the form dn/dt = -An(2), where A is an exciton-Auger constant. Various measurements of A, however, have reported values that are orders-of-magnitude larger than the existing theory. In response to this conundrum, recent work has suggested that excitons bind into excitonic molecules, or biexcitons, which are short-lived and expected to be optically inactive. Of particular interest is the case of excitons confined to a parabolic strain well-a …

A Likelihood Ratio Test Approach To Profile Monitoring In Tourism Industry, R. Noorossana, H. Izadbakhsh, M. R. Nayebpour

Applications and Applied Mathematics: An International Journal (AAM)

A new statistical profile monitoring technique to monitor and detect changes in logistic profiles with an application in the tourism industry is presented in this paper. In the statistical process control literature, profile is usually referred to as a relationship between a response variable and one or more explanatory variables. In the tourism case study presented in this paper, time is considered as the explanatory variable and tourism satisfaction as the response variable. The Likelihood ratio test is used as a vehicle to detect any changes in the satisfaction profile in phase II of profile monitoring. The performance of the …

The Essentialism Of Music In Human Life And Its Roots In Nature, Katricia D. F. Stewart

Senior Theses

The connections between our emotions, music, and the natural world have only been examined in dualities, rather than as an interwoven triangle of elements that are innate and stem from our evolutionary history as a species. Our emotions are profoundly tied to musical sounds, while we also have a deeply rooted emotional connection with nature. The music of the natural world provided the foundation for crucial aspects of our human evolution, making our connections with both music and nature innate. Composers, musicians, poets, and storytellers have recognized this for centuries, exploiting these inherent connections in order to convey emotion and …

Pittsburg State University Annual Commencement, December 2014, Pittsburg State University

Commencement, 1903-Present

Program of undergraduate and graduate commencement exercises at Pittsburg State University on December of 2014

Grand Valley Forum, Volume 039, Number 15, December 01, 2014, Grand Valley State University

2014-2015, Volume 39

Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.

The Classic, Winter 2014-2015, Public Relations

The Classic, 2010-2019

Zwemer View: We're All About Community; Around the Green: Top-Grade Recognition; Showcased Design; Outstanding Administrator; Memoir; Family Talk in Taiwan; Joining the Faculty: Laura Edwards, Tatum Geerdes, Rebecca (Vander Molen '03) Koerselman, Donna (Pennings '92) Van Peursem; Campus Life: Futbol Fandom; The Experts Say...; Hall of Famer; Profs on Sabbatical; Breaking Ground; Carlson Internships; Study Abroad Director; Face Value: Joan Andres; Investing in the Mission: 2013-14 giving tops $6.5 million; Outstanding Alumni; Super Blizzard; Red Zone; 1000 Words: Winter Wonderland; Ramaker Redux; Eat Hearty; Culinary Delights; Super Nurse; Homeland Security; Snapshot; Singing Soldier; Wheer in the world is NWC?; Red …

Station Exposure And Resulting Bias In Temperature Observations: A Comparison Of He Kentucky Mesonet And Asos Data, James Kyle Thompson

Masters Theses & Specialist Projects

Station siting, exposure, instrumentation, and time of observations influence longterm climatic records. This thesis compared and analyzed temperature data from four Kentucky Mesonet stations located in Fayette (LXGN), Franklin (LSML), Clark (WNCH), and Bullitt (CRMT) counties to two nearby Automated Surface Observation Systems (ASOS) stations in Kentucky. The ASOS stations are located at Louisville International Airport (Standiford Field - KSDF) and at Lexington Airport (Blue Grass Field - KLEX). The null hypothesis states that there is no significant difference in temperature measurements between the two types of stations. To quantify the differences in temperature measurements, geoprofiles and the following statistical …

Developing A Contextualization Of Students’ Mathematical Problem Solving, Sean P. Yee, Jonathan Bostic

School of Teaching and Learning Faculty Publications

This paper investigates how students contextualize mathematical problem solving, not the actual problems. When students attempt to solve problems, what contexts (situational, cultural, or conceptual) do they evoke to describe their experiences with problem solving? The Common Core State Standards for Mathematical Practice emphasize contextualizing and decontextualizing problems, but what does this mean in practice? Middle and high school students were asked to attempt ability-appropriate problems during semi-structured interviews in this qualitative study. Situational contexts were analyzed using representation analysis (symbolic and nonsymbolic) while cultural contexts were analyzed using linguistic analysis (metaphors). The synergy of these two analyses developed a …

Collaborative Course Design And Inquiry-Based Approaches In Geoscience Education, Paul E. Baldauf, Robert Hill

Quadrivium: A Journal of Multidisciplinary Scholarship

No abstract provided.

Flow Dynamics Of Byrd Glacier, East Antarctica, C. J. Van Der Veen, L. A. Stearns, Jesse Johnson, B. Csatho

Computer Science Faculty Publications

Force-balance calculations on Byrd Glacier, East Antarctica, reveal large spatial variations in the along-flow component of driving stress with corresponding sticky spots that are stationary over time. On the large scale, flow resistance is partitioned between basal (�80%) and lateral (�20%) drag. Ice flow is due mostly to basal sliding and concentrated vertical shear in the basal ice layers, indicating the bed is at or close to the pressure-melting temperature. There is a significant component of driving stress in the across-flow direction resulting in nonzero basal drag in that direction. This is an unrealistic result and we propose that there …

Improved Performance Of Analog And Digital Acousto-Optic Modulation With Feedback Under Profiled Beam Propagation For Secure Communication Using Chaos, Fares S. Almehmadi, Monish Ranjan Chatterjee

Electrical and Computer Engineering Faculty Publications

Using intensity feedback, the closed-loop behavior of an acousto-optic hybrid device under profiled beam propagation has been recently shown to exhibit wider chaotic bands potentially leading to an increase in both the dynamic range and sensitivity to key parameters that characterize the encryption. In this work, a detailed examination is carried out vis-à-vis the robustness of the encryption/decryption process relative to parameter mismatch for both analog and pulse code modulation signals, and bit error rate (BER) curves are used to examine the impact of additive white noise.

The simulations with profiled input beams are shown to produce a stronger encryption …

Continuity And The Open Whole: A Comparison Of Recent (Peircian) Ethnographies, Joshua Reno

Anthropology Faculty Scholarship

A comparison of Eduardo Kohn's "How forests think: Toward an anthropology beyond the human" and David Pedersen's "American value: Migrants, money, and meaning in El Salvador and the United States" which explores their relationship to the continuist ontology of the philosopher Charles S. Peirce and its implications for contemporary anthropology.

College Of Arts And Sciences E-News Issue 20: December 2014, College Of Arts And Sciences

College of Arts and Sciences news

• State-of-the-Art Confocal Microscope Changes Research at WMU
• WMU Hosts Second Michigan Autism Conference
• Physics Professor Awarded $150,000 NSF Grant
• A Campus Love Story: Marisa & Brandon
• Victim Advocate Assistant Arica Nelson
• Full Circle
• Kathryn Hemmen Reflects on Semester in Japan

Creating Tomorrow, Fall 2014, College Of Engineering

College of Engineering Magazines

Annual magazine for the College of Engineering at Utah State University.

The Effectiveness Of Teleglaucoma Versus In-Patient Examination For Glaucoma Screening: A Systematic Review And Meta-Analysis, Sera-Melisa Thomas, Maya M Jeyaraman, Maya Jeyaraman, William G Hodge, Cindy Hutnik, John Costella, Monali S Malvankar-Mehta

Epidemiology and Biostatistics Publications

BACKGROUND: Glaucoma is the leading cause of irreversible visual impairment in the world affecting 60.5 million people worldwide in 2010, which is expected to increase to approximately 79.6 million by 2020. Therefore, glaucoma screening is important to detect, diagnose, and treat patients at the earlier stages to prevent disease progression and vision loss. Teleglaucoma uses stereoscopic digital imaging to take ocular images, which are transmitted electronically to an ocular specialist. The purpose is to synthesize literature to evaluate teleglaucoma, its diagnostic accuracy, healthcare system benefits, and cost-effectiveness.

METHODS: A systematic search was conducted to help locate published and unpublished studies. …

Security Issues In Data Warehouse, Saiqa Aleem, Luiz Fernando Capretz, Faheem Ahmed Dr.

Electrical and Computer Engineering Publications

Data Warehouse (DWH) provides storage for huge amounts of historical data from heterogeneous operational sources in the form of multidimensional views, thus supplying sensitive and useful information which help decision-makers to improve the organization’s business processes. A data warehouse environment must ensure that data collected and stored in one big repository are not vulnerable. A review of security approaches specifically for data warehouse environment and issues concerning each type of security approach have been provided in this paper.

Science As Storytelling, David A. Grandy, Barry R. Bickmore

BYU Studies

Much if our modern world revolves around something called "science." But what is science? Interestingly, this turns out to be a very difficult question to answer because every definition seems to include something we don't consider science or seems to exclude something we do consider science. In this essay, the authors present their own definition: Science is the modern art of creating stories that explain observations of the natural world and that could be useful for predicting, and possibly even controlling, nature. They then refine this definition by offering seven rules that scientific storytelling must follow to distinguish it …

Urban Seismology For Groundwater Characterization In A Developing Country: Challenges And Rewards, John H. Bradford, Kyle Lindsay, Steve Silliman, Nicaise Yalo, Moussa Boukari

Geosciences Faculty Publications and Presentations

The coastal city of Cotonou in the developing country of Bénin, West Africa, is a large population center that is facing a serious threat to the sustainability of its freshwater supply. The city relies on the Godomey aquifer for domestic water, but the aquifer is undergoing saltwater intrusion. This problem is likely to worsen without significant steps to improve management of the water supply. Aquifer continuity and saltwater flow paths are poorly understood, but that information is critical to ensure sustainable access to freshwater in this growing urban center. In January 2012, a two-year geophysical investigation was begun with the …

An Evaluation Of Fall Prevention Interventions Among Older Adults In A Long Term Care Facility, Courtney Anita Bennett

Doctoral Projects

Falls are serious unwanted events that are a common occurrence among older adults in long term care facilities (LTC). Fall prevention in LTC facilities requires the efforts of an interprofessional team that promotes safety within an organization. The purpose of this capstone project is to implement and evaluate evidence-based fall prevention interventions at a LTC facility. Specific objectives of the project include: (a) providing education to healthcare professionals on evidence-based practices to recognize, assess, and prevent falls among older adults in a long term care facility and (b) replacing the existing fall prevention policy and program with a falls and …

Effects Of Major Sudden Stratospheric Warmings Identified In Midlatitude Mesospheric Rayleigh-Scatter Lidar Temperatures, Leda Sox, Vincent B. Wickwar, Chad Fish, Josh Herron

Physics Student Research

Mesospheric temperature anomalies associated with Sudden Stratospheric Warmings (SSWs) have been observed extensively in the polar regions. However, observations of these anomalies at midlatitudes are sparse. The very dense 11-year data set, collected between 1993–2004, with the Rayleigh-scatter lidar at the Atmospheric Lidar Observatory (ALO; 41.7°N, 111.8°W) at the Center for Atmospheric and Space Sciences (CASS) on the campus of Utah State University (USU), has been carefully examined for such anomalies. The temperatures derived from these data extend over the mesosphere, from 45 to 90 km. During this period extensive data were acquired during seven major SSW events. In this …

Supergravity Backgrounds For Deformations Of Adsn×Sn Supercoset String Models, Oleg Lunin, Radu Roiban, Arkady Tseytlin

Physics Faculty Scholarship

We consider type IIB supergravity backgrounds corresponding to the deformed AdS_n x S^n supercoset string models of the type constructed in arXiv:1309.5850 which depend on one deformation parameter k. In AdS_2 x S^2 case we find that the deformed metric can be extended to a full supergravity solution with non-trivial dilaton, RR scalar and RR 5-form strength. The solution depends on a free parameter (called a) that should be chosen as a particular function of k to correspond to the deformed supercoset model. In AdS_3 x S^3 case the full solution supported by the dilaton, RR scalar and RR 3-form …

Dynamics Of A Two-Dimensional Competitive System Of Rational Difference Equations With Quadratic Terms, Vahidin Hadžiabdić, Mustafa Kulenovic, Esmir Pilav

Mathematics Faculty Publications

We investigate global dynamics of the following systems of difference equations:

[Mathematical equations cannot be displayed here, refer to PDF]

where the parameters b₁, a₂, A₁, c₂, are positive numbers and the initial condition y₀ is an arbitrary nonnegative number and x₀ is a positive number. We show that this system has rich dynamics which depends on the part of the parametric space. We find precisely the basins of attraction of all attractors including the points at ∞.

Reliability-Based Design And Acceptance Protocol For Driven Piles, Joseph Jabo

Graduate Theses and Dissertations

The current use of the Arkansas Standard Specifications for Highway Construction Manuals (2003, 2014) for driven pile foundations faces various limitations which result in designs of questionable reliability. These specifications are based on the Allowable Stress Design method (ASD), cover a wide range of uncertainties, do not take into account pile and soil types, and were developed for general use. To overcome these challenges it is deemed necessary to develop a new design and acceptance protocol for driven piles. This new protocol incorporates locally calibrated RLFD resistance factors for accounting for local design and construction experiences and practices, as well …

Modeling Scenarios Of Sea-Level Rise And Human Migration: Rita Village, The Republic Of The Marshall Islands, Donna Davis

Graduate Theses and Dissertations

This study explores the relationship between sea-level rise and human migration from Rita Village in the Republic of the Marshall Islands (RMI). As one of only four low-lying atoll countries at the forefront of risks associated with climate change, examining the extent to which sea level will rise and displace residents in the Marshall Islands is of timely importance. The approach to this research is a scenario-based, case study and it examines loss of home, human displacement and subsequent migration in Rita Village as a result of varying levels of sea level rise. The scenario-based approach is based on the …

Development Of A Hydrologic Model For An Urban Headwater Stream: The Influence Of Pervious Surface Properties On Runoff Dynamics, Dawn A. Farver

Graduate Theses and Dissertations

A hydrologic model was developed for the Mullins Creek (MC) catchment located on the University of Arkansas campus in Fayetteville, Arkansas. The MC catchment is a small, dynamic urban stream system with a range of land use/land cover (LULC), an extensive and well-developed stormwater drainage network, and extensive urbanization (over 90% developed, and almost 50% impervious surface area (ISA)). Selected datasets provided information on the stormwater drainage network, the physical attributes of the catchment and receiving waterway (i.e. drainage area, slope, etc.), infiltration potential of soil map units, LULC, and percent ISA. These datasets were analyzed to provide input parameters …

Structure, Aboveground Biomass, And Soil Characterization Of Avicennia Marina In Eastern Mangrove Lagoon National Park, Abu Dhabi, Tareefa Alsumaiti

Graduate Theses and Dissertations

Mangrove forests are national treasures of the United Arab Emirates (UAE) and other arid countries with limited forested areas. Mangroves form a crucial part of the coastal ecosystem and provide numerous benefits to society, economy, and especially the environment. Mangrove trees, specifically Avicennia marina, are studied in their native habitat in order to characterize their population structure, aboveground biomass, and soil properties. This study focused on Eastern Mangrove Lagoon National Park in Abu Dhabi, which was the first mangrove protected area to be designated in UAE. In situ measurements were collected to estimate Avicennia marina status, mortality rate (%), …

The Impact Of Explicit Instruction On Preservice Teachers’ Conceptions Of Randomness, Jonica H. Mcbride

All-Inclusive List of Electronic Theses and Dissertations

This study considered the impact of explicit teaching of misconceptions regarding randomness on cognitive growth of preservice teachers. Specifically, the purpose was to compile and validate instructional materials that facilitate preservice teachers’ conceptual understandings of randomness. The quasiexperimental design compared the cognitive effects of the instructional materials. Hence, in addition to the instructional materials, assessment instruments were compiled and validated. These items were intended to illuminate the cognitive growth resulting from the treatment instruction. The convenience sample of 67 students represented approximately one third of the teacher-education students enrolled in a mathematics education content course at this institution. Three sections …