Digital Commons Network^™

A Comparison Of Three Levels Of Verbal Redundancy In Multimedia Learning And Its Effects On Memory Retention And Transfer In Legal Professionals, Angela Mizell Dooley

Theses and Dissertations

This study sought to examine verbal redundancy in multimedia learning and its effects on memory retention and transfer in legal professionals who were randomly assigned to watch one of three multimedia videos. Tests of ANOVA showed no significant differences in performance, mental load, or combined efficiency scores among the three instructional groups, but participants in the complementary text group rated the video with complementary slides as significantly more helpful than the videos with redundant, overloaded text slides and spoken words only. Factorial ANOVA also revealed that the redundant text group with fewer than five years of experience scored significantly lower …

A Multi-Stage Efficiency Analysis Of Oecd Healthcare And The Impact Of Technical Change, Can Bekaroglu

Doctoral Dissertations

This dissertation aims to measure the impact of technical change on OECD Healthcare in a multi-stage framework and identify the different sources of outcome losses to allow for comprehensive policy implications within a diverse dataset including countries from a large variety of development levels facing different healthcare issues. We adopt an output-oriented DEA (Data Envelopment Analysis) methodology to obtain the technical efficiencies in production and provision. Data used in this study is mainly obtained from the Organization for Economic Cooperation and Development (OECD) Health Data 2013 and consists of 34 OECD countries and 12 years between 2000 and 2011.

Higher Education Governance Structures And Operational Efficiency And Effectiveness Of 4 -Year Public Institutions, Angela H. Claxton-Freeman

Electronic Theses and Dissertations

This study benchmarks 4-year public institutions in the Southern Regional Education Board to determine if there are significant differences between the institutions based on efficiency and effectiveness scores within the types of governance structures in operation among the states. Efficiency and effectiveness scores are also used to determine if there are significant differences between institutions based on state appropriation levels. In this quantitative study, data envelopment analysis (DEA) was used to collapse selected institutional data reported to IPEDS into effectiveness and efficiency scores which were then used as the dependent variables. The variable returns to scale (VRS) model was used …

Bus Route Operational Efficiency Evaluation In Milwaukee County, Ebtesam Hazbavi

Theses and Dissertations

ABSTRACT

BUS ROUTE OPERATIONAL EFFICIENCY EVALUATION IN MILWAUKEE COUNTY

by

Ebtesam Hazbavi

The University of Wisconsin-Milwaukee, 2015

Under the Supervision of Professor Yue Liu

Public transit systems are expanding in the majority of cities in the United States due to the increasing numbers of people who use public transportation as their main commute facility. Evaluating the efficiency of public transit systems results in providing better services for the residents on one hand and reduces the unnecessary costs on the other hand.

In this research, the efficiencies of bus routes options in County are evaluated. After reviewing different literature, Fuzzy AHP …

Modeling And Test Of The Efficiency Of Electronic Speed Controllers For Brushless Dc Motors, Clayton R. Green

Master's Theses

Small electric uninhabited aerial vehicles (UAV) represent a rapidly expanding market requiring optimization in both efficiency and weight; efficiency is critical during cruise or loiter where the vehicle operates at part power for up to 99% of the mission time. Of the four components (battery, motor, propeller, and electronic speed controller (ESC)) of the electric propulsion system used in small UAVs, the ESC has no accepted performance model and almost no published performance data. To collect performance data, instrumentation was developed to measure electrical power in and out of the ESC using the two wattmeter method and current sense resistors; …

Design And Comparison Of Si-Based And Sic-Based Three-Phase Pv Inverters, Wei Fu

Theses and Dissertations

The opportunities for both power density and efficiency improvements of photovoltaic (PV) inverter have come with the development of commercially available wide bandgap (WBG) devices such as Gallium Nitride (GaN), and Silicon Carbide (SiC).

In this thesis, how the replacement of Silicon (Si) Insulated Gate Bipolar Transistor (IGBT), with SiC Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET) affects the power density and efficiency of a solar inverter implementation is presented. The focus is on achieving a minimum volume of the output filter which meet the current harmonic performance of IEEE standard, while meeting the thermal constraint of the semiconductor device. Efficiency improvements …

Improved Methods For Identifying, Applying, And Verifying Industrial Energy Efficiency Measures, Andrew Chase Harding

Graduate Theses and Dissertations

Energy efficiency is the least expensive source of additional energy capacity for today's global energy expansion. Energy efficiency offers additional benefits of cost savings for consumers, reduced environmental impacts, and enhanced energy security. The challenges of energy efficiency include identifying potential efficiency measures, quantifying savings, determining cost effectiveness, and verifying savings of installed measures. This thesis presents three separate chapters which address these challenges. The first is a paper presented at the 2014 industrial energy technology conference (IETC) that details a compressed air system project using the systems approach to identify cost effective measures, energy intensity to project savings, and …

Improvement Of Nutrient Utilization Efficiency, Ruminal Fermentation And Lactational Performance Of Dairy Cows By Feeding Birdsfoot Trefoil, Rachael G. Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Condensed tannins (CT) are compounds that have shown potential to reduce the environmental impact of dairy farming waste products. In two live animal studies and a continuous culture study, it was hypothesized that feeding birdsfoot trefoil (Lotus corniculatus, BFT), a CT-containing legume, would improve nutrient utilization, milk, and component yield of dairy cows compared with feeding alfalfa hay or grass pasture in two studies, while feeding BFT forage would decrease methane production and improve rumen fermentation in addition to concentrate supplementation was the hypothesis of the third study. Reduction in milk urea nitrogen (MUN) and …

Drip Hydraulics Program, Garret Blocher

BioResource and Agricultural Engineering

This senior project report lays out the production of drip hydraulics software composed in Microsoft Excel and backed by coding in Visual Basic for Applications. The program performs 2 main functions useful in the design of irrigation systems. The first is based on performing single hose computations under three different circumstances. It can solve for the average emitter flow rate given the hose inlet pressure, the inlet pressure given the average emitter flow rate, and can model hose pressures and flow rates while flushing. The second function is to place a manifold in the hydraulically optimum location on a slope. …

Evaluating Colleges And Universities: A New Model For Institutional Rankings, Lucien Robert Costley

Seton Hall University Dissertations and Theses (ETDs)

Abstract

Most colleges and universities function independently and lack the wherewithal of measuring performance areas of effectiveness, efficiency or quality. The United States Department of Education maintain a number of subsidiary organizations and external sources that provide public statistical data for analysis, yet an institutional performance output measure has not been defined, created, nor developed. At best, university rankings (from sources such as US News and World Report) have been the main source of institutional performance for decades despite researchers’ attempts to address gaps within the higher education field. These sources remain limited within their methodology and may not truly …

Efficiency And Betweenness Centrality Of Graphs And Some Applications, Bryan Ek

Theses

The distance $d_{G}(i,j)$ between any two vertices $i$ and $j$ in a graph $G$ is the minimum number of edges in a path between $i$ and $j$. If there is no path connecting $i$ and $j$, then $d_G(i,j)=infty$. In 2001, Latora and Marchiori introduced the measure of efficiency between vertices in a graph. The efficiency between two vertices $i$ and $j$ is defined to be $in_{i,j}=frac{1}{d_G(i,j)}$ for all $ineq j$. The textit{global efficiency} of a graph is the average efficiency over all $ineq j$. The {it power of a graph} $G^m$ is defined to be $V(G^m)=V(G)$ and $E(G^m)={(u,v)|d_G(u,v)le m}$. In …

Multimedia Learning For Increasing Knowledge On Energy Efficiency And Promotion Of Proenvironmental Behavior: A Study Of Undergraduate Students In Costa Rica, Yoselyn Walsh

Open Access Theses

Promotion of energy efficiency practices among household has been employed in many interventions with a varying degree of success, mainly on developed countries. The purpose of the study is to promote and measure knowledge of proenvironmental behavior in undergraduate students in the Costa Rica Institute of Technology. The intervention used for this purpose provided personal and altruistic information about the impact of energy consumption activities in household. People’s perceptions and attitudes about behaviors that contribute and mitigate climate change were also investigated. Participants were students from undergraduate programs who are also inhabitants of the residence hall provided by the institution. …

Inefficiency In The Post Anesthesia Care Unit: A Quality Improvement Initiative, Ashley St. Martin

Master's Theses and Capstones

Background: The post anesthesia care unit (PACU) is a busy environment in which nurses communicate with patients, family members, and a large team of perioperative professionals. PACU nurses were experiencing an unmanageable number of work interruptions due to a higher patient census which increased the daily surgical caseload.

Aim: The purpose of this project was to improve efficiency and nurses’ job satisfaction by making work interruptions manageable in the PACU.

Methods: Based on Kotter’s Change Theory, a quality improvement initiative was implemented using a change in the communication process. Qualitative and quantitative data was gathered in the PACU and on …

Assessing The Significance Of Modularizing Contract Manufacturing Organizations, Christian Sampson Yorgure

Walden Dissertations and Doctoral Studies

Organizations are under constant threat from global competition, socioeconomic factors,

and political forces that are often unforeseen and dynamic. Consequently, decision

makers adopt strategies, some including the principles of modularity, as a

countermeasure. The problem addressed in this study was the lack of knowledge about

the significance of modularizing contract manufacturing organizations (CMOs). The

purpose of this quasi-experimental study was to assess the significance of modularizing

CMOs by statistically analyzing capacity utilization, efficiency, and profit margin

between modular and nonmodular departments in a focal CMO. This study was grounded

in the theory of modularity and the research question addressed what …

Exploring Small Ghanaian And U.S. Banks' Efficiency During The 2007-2009 Financial Crisis, Reuben Ashitey Amarh

Walden Dissertations and Doctoral Studies

The adverse effect of small bank closures in the United States from 2007 to 2009 required $7 trillion from United States taxpayers to rescue the United States economy. This comparative case study explored the reasons that led to differences in efficiency in small banks in the United States and Ghana during the 2007 to 2009 period. This research was driven by the contingency theory, which states leaders perform well if they change their styles of leadership to suit the situation at hand. Semistructured interviews were employed to gather data from 20 senior and chief executives of small banks: 10 from …

Factores Que Determinan La Formación De Docentes Eficaces Durante La Práctica Pedagógica En Francés En La Licenciatura En Lengua Castellana, Inglés Y Francés De La Universidad De La Salle, Diana Carolina Camacho Urazán, Luisa Alejandra Melo Londoño

Licenciatura en Español y Lenguas Extranjeras

El siguiente informe pretende dar cuenta de lo transcurrido a lo largo del proceso de investigación llevado a cabo durante dos años, en el que se determinaron los factores que inciden en la formación de docentes eficaces y que están presentes durante las prácticas pedagógicas. Se dio inicio con la propuesta de un proyecto que pudiera cumplir con los requisitos exigidos y que también fuera de interés para las investigadoras. Estableciendo tres categorías principales, como lo son: la formación inicial de los docentes, las prácticas pedagógicas y la eficacia docente. Se continuó con el proceso de indagación teórica con el …

Increasing Efficiency Of Thermal Desalination, Jarrod A. Edwards, Mackinzie Washington, Chan Jung, Ben Garrison

Chancellor’s Honors Program Projects

No abstract provided.

Eficiencia Del Modelo De Gestión Del Idipron En La Administración Del Servicio De Baños Públicos En Bogotá, William Fernando Rojas Henao

Administración de Empresas

El presente artículo hace un breve recorrido histórico del servicio de baños públicos desde el siglo XIX, hasta cuando la Administración Distrital se apersonó de su cuidado, funcionamiento y responsabilidad, para atender las necesidades de la población de Bogotá. Este se fundamenta en los conceptos de bien público y común, servicio público y baño público; y en aspectos legales y administrativos como Acuerdos, Proyectos de Acuerdo, Leyes, Decretos y Códigos de Jurisprudencia que demuestran la importancia del servicio y que son vitales para que el Estado cumpla funciones administrativas en bien de la comunidad. Al investigar el origen de la …

Identifying Differences Between Privatized, Partially Privatized, And Non-Privatized State Foster Care Systems: A Comparative Study Examining Efficiency And Effectiveness, Dorothy C. Coles

Theses and Dissertations

Privatization of the public child welfare system has become increasingly popular since its introduction in the early 1990s. State governments that initiate the privatization of foster care services rationalize the changes with claims of effectiveness and/or increased efficiency of services for children and families. There has been no real focus on identifying what efficiency of the system means for children and their families, nor what aspects of effectiveness focuses on children in foster care. As a result, the unintended consequences of this total restructuring of foster care bureaucracy, through the privatization of the state foster care system – and its …

Application Of Adaptive Albedo Roofing Coatings In The Southeastern United States, Christopher Michael Gray

All ETDs from UAB

In hot climates, such as the Southeastern United States, the roof heat gain of low-rise commercial buildings has led to widespread adoption of high reflectivity, "cool" roofing materials to reduce the building's cooling load. Cooling reduction techniques are of particular interest to electric utilities in the Southeast who are obligated to provide energy infrastructure to supply these loads. Regrettably, a consequence of cool roofs is increased heating load in cool months, thereby reducing their overall value. A potential solution is a roof surface which reversibly and automatically adapts its albedo to the building's thermal profile. Thermochromic polymers, which reversibly change …