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Influence Of Various Health Beneficial Spices On Some Characteristics Of Yogurt Culture Bacteria Lactobacillus Acidophilus, And Sensor Acceptability Of Spicy Probiotic Yogurt, Margie Michelle Sanchez-Vega
Influence Of Various Health Beneficial Spices On Some Characteristics Of Yogurt Culture Bacteria Lactobacillus Acidophilus, And Sensor Acceptability Of Spicy Probiotic Yogurt, Margie Michelle Sanchez-Vega
LSU Doctoral Dissertations
There is a pronounced public awareness about herbal remedies. Garlic and ginger have antibacterial properties and prevent cardiovascular diseases. Onion and turmeric decrease the risk of diabetes and like garlic, they have anticancer properties. Streptococcus thermophilus, Lactobacillus bulgaricus and Lactobacillus acidophilus are lactic acid bacteria that produce lactase and reduce the symptoms of malabsorption. Earlier work has shown the influence of spice extracts but the influence of pure spice juice on yogurt culture bacteria is not known. Characteristics of yogurt culture bacteria were measured by suspending freshly thawed cultures in 0.1% peptone water (growth), acidified MRS broth (acid tolerance), MRS-Thio …
The Effects Of Chronic And Acute Exercise Modalities On Substrate Utilization And Plasma Adiponectin Concentration, Greggory Ryan Davis
The Effects Of Chronic And Acute Exercise Modalities On Substrate Utilization And Plasma Adiponectin Concentration, Greggory Ryan Davis
LSU Doctoral Dissertations
Impaired lipid metabolism at rest has been linked to the development of insulin resistance and an attenuation of plasma concentration of the hormone adiponectin. However, it has been suggested that increasing fatty acid oxidation at rest, via exercise or otherwise, may augment plasma adiponectin. The current literature addressing changes substrate utilization and possible direct effects on adiponectin during and following exercise is not well established. Therefore, the purpose of this dissertation was to examine concomitant changes in adiponectin and substrate utilization both at rest and during various exercise modalities, as this may provide implications for improving metabolic responses and in …
Potential Influence Of Blueberry And Black Raspberry Pomace Phenolics On Inflammatory Cytokines In Coronary Cells, Adriana Soto Rodriguez Gil
Potential Influence Of Blueberry And Black Raspberry Pomace Phenolics On Inflammatory Cytokines In Coronary Cells, Adriana Soto Rodriguez Gil
LSU Doctoral Dissertations
Elevated free fatty acids (FFAs) in obesity are known risk factors associated with chronic inflammatory conditions including cardiovascular inflammation and thus cardiovascular disease (CVD), the leading cause of death in the US. Anthocyanins from berries have the potential to provide protection against inflammation in various tissues; however they are poorly absorbed and undergo major transformations by the microbiome. The work presented in this dissertation involves the development and utilization of an in vitro model to characterize the products of colonic fermentation and absorption of blueberry and black raspberry pomace phenolics, and evaluate the potential efficacy of these products compared to …
Transcription And Analysis Of Ravi Shankar's Morning Love For Western Flute, Sitar, Tabla And Tanpura, Bethany Padgett
Transcription And Analysis Of Ravi Shankar's Morning Love For Western Flute, Sitar, Tabla And Tanpura, Bethany Padgett
LSU Doctoral Dissertations
The purpose of this study is to provide a transcription and musical analysis of Ravi Shankar’s Morning Love for Western flute, sitar, tabla and tanpura. This document provides a discussion of Ravi Shankar’s biography, a theoretical context for the piece including an introduction to Hindustani musical characteristics, and prescriptive transcriptions of Morning Love in Western and Indian notation. A detailed analysis of the piece applies the Hindustani classical musical characteristics discussed. Morning Love is one of only two pieces for Western flute composed by Ravi Shankar as a result of his collaboration with French flutist Jean-Pierre Rampal. Prior to this …
Oligomers Of Beta-L-Arabinosides Of Hydroxyproline : Synthesis Of The Carbohydrate Epitope Of The Art V 1 Allergen, Ning Xie
LSU Doctoral Dissertations
The pollen of mugwort is a major contributor to hay fever in Europe and North America. The chemical structure of Art v 1, the major allergen of mugwort, has been elucidated. A notable motif in Art v 1 – characterized by clusters of contiguous â-arabinosides of hydroxyproline – was found to be a key recognition element for antibodies generated in response to the natural protein. This dissertation details the chemical synthesis of oligomers of â-arabinosides of hydroxyproline and the search to establish the minimal carbohydrate epitope of Art v 1. The â-arabinoside motif, being a 1,2-cis glycoside, presents a considerable …
Thinking Together About The Common Good: The Political Implications Of Thomas Aquinas's Theory Of Conscience, Angela Concetta Miceli
Thinking Together About The Common Good: The Political Implications Of Thomas Aquinas's Theory Of Conscience, Angela Concetta Miceli
LSU Doctoral Dissertations
This dissertation examines the problems confronted by claims of ‘freedom of conscience’ in contemporary political society, and argues that freedom of conscience is a critical foundational component of any free political regime. Yet, conscience is often invoked as the final authority or justification for any choice, regardless whether the action or choice violates the common good. In this case, there is a risk that conscience can become identified with subjectivism, radical individualism, or autonomy. I suggest that a re-examination of the theory of conscience found in Aquinas, especially as it relates to human reason, natural law, and prudence, contributes toward …
Evolutionary Assembly Of The Neotropical Montane Avifauna, Andres M. Cuervo
Evolutionary Assembly Of The Neotropical Montane Avifauna, Andres M. Cuervo
LSU Doctoral Dissertations
Three fundamental processes are thought to underlie biodiversity patterns: speciation, dispersal, and extinction. Biodiversity patterns in species-rich tropical mountains vary along horizontal (barriers), and vertical (elevation) dimensions. In this dissertation, I set out to explore the interplay between historical and ecological mechanisms hypothesized to shape diversification of Neotropical cloud forest birds. In the second chapter, I conducted comparative analyses using species-specific ecological traits, and 3,175 mtDNA sequences collected across the range of 45 co-distributed birds. First, I found that niche breadth, dispersal ability, and clade age influence lineage diversity (population differentiation). In particular, species that are old, poor dispersers, and …
Transport And Adsorption-Desorption Of Heavy Metals In Different Soils, Tamer A. Elbana
Transport And Adsorption-Desorption Of Heavy Metals In Different Soils, Tamer A. Elbana
LSU Doctoral Dissertations
Understanding the reactivity and mobility of heavy metals in soils is indispensable for assessing their potential risk to the environment. In this study, column transport and batch kinetic experiments were performed to assess the sorption-desorption and mobility of Cd, Cu, Pb, and Sn in alkaline and acidic soils. Furthermore, sequential extractions were accomplished to examine their behavior in soils. Also, the competitive reactivity of Sn and Pb in two acidic soils was quantified. Additionally, the effect of introducing Cd and Cu after a Pb pulse in calcareous soil was presented. Modeling of these heavy metals retention and transport was carried …
Treatment Integrity Failures Matched To Behavioral Function, Joanna Elizabeth Lomas Mevers
Treatment Integrity Failures Matched To Behavioral Function, Joanna Elizabeth Lomas Mevers
LSU Doctoral Dissertations
Prior research on treatment integrity has focused on either the lack of measurement of the independent variable (Peterson, Homer & Wonderlich, 1982; Gresham, Gansle & Noel, 1993; Wheeler, Baggett, Fox & Blevins, 2006; McIntyre, Gresham, DiGennaro & Reed, 2007; Sanetti, Gritter & Dobey, 2011) or on methods to increase overall levels of treatment integrity(Witt, Noell, LaFleur & Mortenson, 1997; Noell, Witt, Gilbertson, Ranier & Freeland,1997; Noell et al., 2005). Yet little research has been devoted to understanding the effectiveness of common interventions when those interventions are implemented with less than perfect integrity. The current investigation evaluated the effectiveness of using …
Super-Aptamer Bio-Imprinted Hydrogels : An Investigation Into The Optimization And Characterization Of Cross-Linked Polymeric Materials Displaying Macromolecular Amplified Responses, Nicholas Alexander Gariano
Super-Aptamer Bio-Imprinted Hydrogels : An Investigation Into The Optimization And Characterization Of Cross-Linked Polymeric Materials Displaying Macromolecular Amplified Responses, Nicholas Alexander Gariano
LSU Doctoral Dissertations
It is becoming more important to detect ultra-low concentrations of analytes for biomedical, environmental, and national security applications. Equally important is that new methods should be easy to use, inexpensive, portable, and if possible allow detection using the naked eye. Detection of low concentrations of analytes generally cannot be achieved directly, but requires signal amplification by catalysts, macromolecules, metal surfaces or supramolecular aggregates. The rapidly progressing field of macromolecular signal amplification has been advanced using conjugated polymers, chirality in polymers, solvating polymers and polymerization/depolymerization strategies. The use of molecularly imprinted polymers is ideal for creation of novel sensors to meet …
Optimization Of Feline Adipose-Derived Multipotent Stromal Cell Isolation And Canine Cranial Cruciate Ligament Regeneration With Intra-Articular Adipose-Derived Multipotent Stromal Cells, Nan Zhang
LSU Doctoral Dissertations
Adult multipotent stromal cells (MSCs) have become popular within veterinary sciences for direct administration and tissue regeneration due to their differentiation, trophic and immunosuppressive properties. However, current isolation and expansion techniques provide a heterogeneous population with other types of cells, which may affect the efficiency and efficacy of treatments. The progenitor properties and function need to be further evaluated in vitro prior to in vivo application. The first part of this dissertation was to identify the optimal MSC source for general canine orthopedic applications such as intra-articular injection and joint tissue regeneration. Based on side-by-side comparisons of cell doublings, colony …
When The Mouse Meets The Elephant : A Manual For String Bass Players With Application Of The Philosophy And Principles Of The F. M. Alexander Technique, Yun-Chieh Chou
LSU Doctoral Dissertations
This study was concerned with the use of the Alexander Technique principles in avoiding unwanted muscular tension and maintaining proper use of the body in double bass playing. Of particular importance was how the Alexander Technique could facilitate the fundamentals of double bass playing. The Alexander Technique is a hands-on method which aids the individual in achieving muscular coordination which is free and lively. Applying the principles of the Alexander Technique helps one achieve a harmonious psychophysical state, which results in greater ease, poise, and physical coordination in any activity, even the most demanding of virtuoso works for double bass. …
Geometric Modeling And Optimization Over Regular Domains For Graphics And Visual Computing, Shenghua Wan
Geometric Modeling And Optimization Over Regular Domains For Graphics And Visual Computing, Shenghua Wan
LSU Doctoral Dissertations
The effective construction of parametric representation of complicated geometric objects can facilitate many design, analysis, and simulation tasks in Computer-Aided Design (CAD), Computer-Aided Manufacturing (CAM), and Computer-Aided Engineering (CAE). Given a 3D shape, the procedure of finding such a parametric representation upon a canonical domain is called geometric parameterization. Regular geometric regions, such as polycubes and spheres, are desirable domains for parameterization. Parametric representations defined upon regular geometric domains have many desirable mathematical properties and can facilitate or simplify various surface/solid modeling and processing computation. This dissertation studies the construction of parameterization on regular geometric domains and explores their applications …
Group 3 Late Embryogenesis Abundant Proteins From Embryos Of Artemia Francisana : Molecular Characteristics, Expression And Function, Leaf Chandra Boswell
Group 3 Late Embryogenesis Abundant Proteins From Embryos Of Artemia Francisana : Molecular Characteristics, Expression And Function, Leaf Chandra Boswell
LSU Doctoral Dissertations
Late Embryogenesis Abundant (LEA) proteins are highly hydrophilic, intrinsically disordered proteins whose expression has been correlated with desiccation tolerance in anhydrobiotic organisms. Embryos of the brine shrimp, A. franciscana, contain high titers of group 3 LEA proteins during desiccation-tolerant stages such as diapause and pre-emergence development. Here I report the sequencing of three novel variants of AfrLEA3m mRNA (Afrlea3m_47, Afrlea3m_43 and Afrlea3m_29), whose deduced protein sequences are are predicted to localize to the mitochondrion. These mRNAs are very similar to Afrlea3m, but each has a stretch of sequence that is absent in at least one of the others. In addition …
Evolutionary And Ecological Dynamics Of Rapid Radiation Of Pocket Gophers (Thomomy's) In Mexico, Verity Lynn Mathis
Evolutionary And Ecological Dynamics Of Rapid Radiation Of Pocket Gophers (Thomomy's) In Mexico, Verity Lynn Mathis
LSU Doctoral Dissertations
Understanding biodiversity is one of the driving foundations of evolutionary biology and researchers use a myriad of tools to uncover and understand the processes contributing to it. The evolutionary and ecological dynamics in a group of smooth-toothed pocket gophers, the Thomomys umbrinus species complex, is studied for this dissertation. This complex is distributed from south-central Arizona and southwestern New Mexico south to Veracruz, Mexico. The genetic complexity of T. umbrinus was initially discovered via allozymes and karyotypes, resulting in five genetic clades: three with one diploid number of chromosomes (2n = 76; two clades distributed in the Sierra Madre Occidental …
Concentration And Detection Of Hepatitis A Virus And Its Indicator From Seawater, Jiemin Cormier
Concentration And Detection Of Hepatitis A Virus And Its Indicator From Seawater, Jiemin Cormier
LSU Doctoral Dissertations
Hepatitis A virus (HAV) infection is the leading worldwide cause of acute viral hepatitis, and its outbreaks often occur from fecal contaminated shellfish. HAV is extremely stable in the environment and can survive 3~10 months in water. In addition, HAV can be bio-concentrated by shellfish by as much as 100 fold from fecal contaminated waters. Bacteriophage MS2 is used widely as a surrogate for HAV, and its presence has been proven to be a reliable indication of the presence of HAV. A rapid detection of viral contamination in water environments can prevent economic loss and can identify the source of …
Classroom Observation, Self-Assessment Of Efficacy, And Student Perceptions Of Engagement As Predictors Of Value-Added Scores, Leslie Davis Blanchard
Classroom Observation, Self-Assessment Of Efficacy, And Student Perceptions Of Engagement As Predictors Of Value-Added Scores, Leslie Davis Blanchard
LSU Doctoral Dissertations
The purpose of this study was to determine which has the strongest correlation to student achievement as measured by value-added test scores: Principal Observations, Teachers Self-Efficacy Ratings, or Student Perceptions of Teacher Effectiveness. 68 teachers from a K-12 public school in the southeast region of the United States agreed to participate in the study. The Teachers’ Sense of Efficacy Scale (TSES) was utilized to measure the teachers in terms of their own reports of self efficacy. The School Improvement Model (SIM) of Iowa State University instruments were used to measure the students’ perceptions of teacher effectiveness. The Teacher Advancement Program …
Characterization, Prevalence, And Risk Factors Of Spontaneous And Experimental Atherosclerosis And Vascular Imaging In Psittaciformes, Hugues Beaufrère
Characterization, Prevalence, And Risk Factors Of Spontaneous And Experimental Atherosclerosis And Vascular Imaging In Psittaciformes, Hugues Beaufrère
LSU Doctoral Dissertations
Atherosclerosis is a degenerative and inflammatory vascular disease characterized by the accumulation of inflammatory cells, lipids, calcium, and formation of large fibrofatty lesions within the intima of arteries resulting in the disorganization of the arterial wall and stenosis of the lumen. Despite the importance of atherosclerosis in psittacine cardiology, there are few pathologic, clinical, and experimental investigations in psittaciformes. In order to expand the knowledge on psittacine atherosclerosis and provide fundamental observational information for future research, a series of studies was conducted on psittaciformes: 1) psittacine atherosclerotic lesions were characterized and categorized based on histopathology, histochemistry, transmission (TEM), and scanning …
Reduced Sodium Delivery Through Submicronization Of Sodium Chloride, Its Use In The Manufacture Of Surface Salted Cheese Crackers And The Evaluation Of Physico-Chemical, Microbiological And Sensory Characteristics Of Cheese Crackers, Marvin L. Moncada-Reyes
LSU Doctoral Dissertations
Reducing the particle size of sodium chloride crystal would increase its dissolution rate leading to a more efficient transfer of the ions to the taste buds and hence perhaps a saltier perception of foods. The objective of this study was to develop submicrosalt by using a nanospray drying method, its use in surface salted cheese crackers and evaluating their physico-chemical, microbiological and sensory characteristics. The cheese cracker treatments consisted of 3 different salt sizes (regular, microsalt and submicrosalt) and 3 different concentrations (2, 1.5 and 1%). The 9 (3 sizes x 3 concentrations) different cheese cracker treatments were tested for …
Analyzing The Effects Of Context-Aware Mobile Design Principles On Student Performance In Undergraduate Kinesiology Courses, Eric John Seneca
Analyzing The Effects Of Context-Aware Mobile Design Principles On Student Performance In Undergraduate Kinesiology Courses, Eric John Seneca
LSU Doctoral Dissertations
Learning occurs when content is accessed in a recursive process of awareness, exploration, reflection and resolution within one’s social context. With the rapid adoption of mobile technologies, mobile learning (m-Learning) researchers should incorporate aspects of mobile human-computer interaction research into the instructional design process. Specifically, the most visible, current definitions of and current research in m-Learning provide overviews of the learning theory informing mobility and focus on device characteristics, but do not focus on how people interact with mobile devices in their every day lives. The purpose of this convergent study was to determine what effect does the incorporation of …
Polymer-Based Fluidic Devices Integrated With Perforated Micro- And Nanopore Membrane For Study Of Ionic And Dna Transport, Junseo Choi
LSU Doctoral Dissertations
This study aims to develop a process, allowing a low-cost and high-throughput fabrication technique to produce freestanding polymer membranes having perforated micro- and nanopores, and also to design 3D micro/nanofluidic devices with the membrane, enabling a study of ions and DNA transport through nanopores. Technically, we have designed and fabricated high quality silicon stamp. Then, they have been used as molds for modified nanoimprint lithography that takes advantages of a sacrificial layer to obtain freestanding polymer membrane. This technique allows easy fabrication of large area, fully released polymer membranes containing perforated micro- and sub-micropores. The membrane with perforated micropores has …
Poultry Litter Ash As A Phosphorus Source For Greenhouse Crop Production, Daniel Evan Wells
Poultry Litter Ash As A Phosphorus Source For Greenhouse Crop Production, Daniel Evan Wells
LSU Doctoral Dissertations
Phosphorus (P) is an essential nutrient for all life forms, including plants, but is a limited agricultural resource whose future availability is in question. Therefore, identification of alternative forms of P fertilizers is important. Poultry litter ash (PLA), a byproduct of bioenergy production, contains high concentrations of P comparable to conventional fertilizers. Forms of P contained in PLA have been characterized as having low water solubility. Nutrient losses during containerized plant production are high due to excessive inputs of water and nutrients and low nutrient sorption capacities of common horticultural substrate components. Environmental concerns over reduced water quality intensify this …
Assessing Altruistic Behavior, Burnout, And Wellness Outcomes Of Entry Level, Live-In And Live On Residence Life Professionals, Erin Coquese Vaughn
Assessing Altruistic Behavior, Burnout, And Wellness Outcomes Of Entry Level, Live-In And Live On Residence Life Professionals, Erin Coquese Vaughn
LSU Doctoral Dissertations
The current study investigated the relationship between burnout, wellness, and altruistic motivation of entry level, live in and live on residence life staff. The literature review consists of empirical research for each construct presented (burnout, wellness, and altruism). The study sampled utilized were live-in and live on full time, entry level residence life personnel employed at predominately white public and private institutions in the southeastern part of the United States. Multiple regression analysis was used answer specific research questions. Results confirmed that there was no relationship existed between constructs; however findings do suggest burnout of residence life staff. Results are …
Heterogeneous Volumetric Data Mapping And Its Medical Applications, Huanhuan Xu
Heterogeneous Volumetric Data Mapping And Its Medical Applications, Huanhuan Xu
LSU Doctoral Dissertations
With the advance of data acquisition techniques, massive solid geometries are being collected routinely in scientific tasks, these complex and unstructured data need to be effectively correlated for various processing and analysis. Volumetric mapping solves bijective low-distortion correspondence between/among 3D geometric data, and can serve as an important preprocessing step in many tasks in compute-aided design and analysis, industrial manufacturing, medical image analysis, to name a few. This dissertation studied two important volumetric mapping problems: the mapping of heterogeneous volumes (with nonuniform inner structures/layers) and the mapping of sequential dynamic volumes. To effectively handle heterogeneous volumes, first, we studied the …
A Fluorescent Oil Detection Device, Yuxuan Zhou
A Fluorescent Oil Detection Device, Yuxuan Zhou
LSU Doctoral Dissertations
On April 20th 2010, the largest offshore oil spill in U.S. history happened in the Gulf of Mexico. It is estimated total more than 4 million barrels oil spilled to Gulf of Mexico. More than two million gallons had been used. This had made the threat to coastal and sea ecosystem even greater and long term. Real-time monitoring is also a critical topic for oil spill response. In-situ monitoring devices are needed for rapid collection of real-time data. A new generation of instruments for spilled oil detection is reported in this paper. The main hypothesis in this research is that …
Two Histories, One Future : Louisiana Sugar Planters, Their Slaves, And The Anglo-Creole Schism, 1815-1865, Nathan Buman
Two Histories, One Future : Louisiana Sugar Planters, Their Slaves, And The Anglo-Creole Schism, 1815-1865, Nathan Buman
LSU Doctoral Dissertations
During the five decades between the War of 1812 and the end of the Civil War, southern Louisianans developed a society unlike any other region. The vibrant traditional image of moonlight and magnolias, the notion that King Cotton dominated the South’s economy as Anglo-Saxon masters lorded over their enslaves African-American workers still dominates the image of the American South. This image of a monolithic South, however, does not give a clear indication of the many sub-regional distinctions that both challenged and rewarded the inhabitants of those areas and provides exciting ways to understand slaveholding society culturally. Louisiana’s slaveholding class consisted …
Cyclic Block Copolypeptoids : Synthesis, Self-Assembly And Macroscopic Properties, Chang-Uk Lee
Cyclic Block Copolypeptoids : Synthesis, Self-Assembly And Macroscopic Properties, Chang-Uk Lee
LSU Doctoral Dissertations
This dissertation presents the first experimental efforts for synthesizing a new class of peptidomimetic polymers, cyclic block copolypeptoids, studying their self-assembly in dilute solution, and examining their macroscopic properties. Cyclic poly(N-methyl-glycine)-b-poly(N-decyl-glycine) (PNMG-b-PNDG) diblock copolymers were synthesized via sequential, N-heterocyclic carbene (NHC)-mediated ring-opening polymerization of NCA monomers with controlled chain length and compositions. Cryo-TEM shows that PNMG105-b-PNDG10 copolymers in methanol (1 mg/mL) form spherical micelles that organize to form cylindrical micelles over time. The formation of cylindrical micelles is attributed to the crystallization of PNDG chains, as revealed by SAED and microDSC analyses. Cyclic PNMG100-b-PNDG10 copolymers form thermo-reversible, free-standing gels at …
Factors Influencing Glycogen Branching Enzyme Activity In Mouse Liver, Scott Fuller
Factors Influencing Glycogen Branching Enzyme Activity In Mouse Liver, Scott Fuller
LSU Doctoral Dissertations
Glycogen is the storage polysaccharide in a spectrum of organisms ranging from yeast to humans. Glycogen has a highly branched structure somewhat resembling a tree or shrub, with the branch points formed by glucose molecules being joined by α 1,6-glycosidic linkages. These linkages are formed by the action of branching enzyme. Branching of glycogen is critical to health, with a lack of branching causing glycogen storage disease type IV, which is fatal in humans by age 2. While glycogen branching enzyme has been studied in clinical medicine, modulation of the enzyme has received comparatively little attention. This dissertation undertook three …
Volatile Congregations : Crisis Sensemaking In A Southern Baptist Church, Brandon Douglas Bannon
Volatile Congregations : Crisis Sensemaking In A Southern Baptist Church, Brandon Douglas Bannon
LSU Doctoral Dissertations
The primary purpose of this study was to test the assertion that Sensemaking Theory is an appropriate lens to understand church crisis by highlighting the role of communication as a central aspect of the sensemaking process. In addition, through the application of Sensemaking Theory, the secondary goal was to assist congregations as they try to avoid the negative consequences of church splits. The analysis utilized in the current study was specifically selected to develop a history of participant interpretation within a church in order to determine how members made sense of the crisis. To that end, this study followed the …
A Quantitative Study Focusing On The Effect Of Electronic Portfolios In Teacher Education, Jarrod Sanson
A Quantitative Study Focusing On The Effect Of Electronic Portfolios In Teacher Education, Jarrod Sanson
LSU Doctoral Dissertations
Portfolios have been used in the field of education as a form of assessment since the 1980s. As time has progressed, portfolios have transitioned from paper to electronic form. Research on electronic portfolios has focused on implementation issues and their impact on student learning. There has been limited effort, however, on their long-term impact. The purpose of this quantitative study was to examine the perceived impact of electronic portfolios on the beginning careers of classroom teachers. More specifically, this study sought to determine if use of electronic portfolios during pre-service education impacted the attitudes and performance of new teachers. The …