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2009

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Claims Of Mistaken Identity: An Examination Of U.S. Television Food Commercials And The Adult Obesity Issue, Cristina Delgado Jan 2009

Claims Of Mistaken Identity: An Examination Of U.S. Television Food Commercials And The Adult Obesity Issue, Cristina Delgado

Electronic Theses and Dissertations

Obesity is one of the major public health issues in the United States, often regarded as part of a global crisis. Companies invest billions of dollars each year towards television advertising campaigns aimed at convincing audiences how their ground-breaking discovery 'battles the bulge' or somehow offers an increased health benefit. This study examined how advertisers presented health-related claims, including health and nutrient-content claims, in U.S. adult-targeted television food commercials. The claims were compared to FTC, FDA, and USDA laws, regulations, and recommendations. A content analysis of food advertising was conducted of commercials from major and cable network programs broadcast during …

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Effects Of Instructor Immediacy And Student Need For Cognition On Student Motivation And Perceptions Of Learning, Sabrina Kalish Jan 2009

Effects Of Instructor Immediacy And Student Need For Cognition On Student Motivation And Perceptions Of Learning, Sabrina Kalish

Electronic Theses and Dissertations

This study built on previous literature linking instructor immediacy, student motivation, and student learning. The purpose of this research was to examine main and interaction effects of instructor immediacy and student trait motivation on student state motivation and cognitive learning. A main effect of instructor nonverbal immediacy on student state motivation and cognitive learning was found to be statistically significant. Further exploratory research did not yield statistical significance for a main effect of trait motivation, as measured by need for cognition, on student state motivation and cognitive learning, nor an interaction effect of immediacy and trait motivation on both state …

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The Role Of The Internet As A Tool To Aid In U.S. Adult Consumers' Weight Loss, Jaclyn Kirby Jan 2009

The Role Of The Internet As A Tool To Aid In U.S. Adult Consumers' Weight Loss, Jaclyn Kirby

Electronic Theses and Dissertations

This thesis focuses on ways the Internet can positively influence and educate U.S. Americans to become healthier and eventually lose weight. Throughout the past 30 years, the percentage of overweight and obese adults in the U.S. has increased immensely, resulting in a nationwide epidemic (American Association for Public Opinion Research, 2006; Center for Disease Control, 2006; Goodman, 2005; The Obesity Society, 2008). The research question for this thesis is the following: What are the perceptions of U.S. adult consumers regarding the positive influence the Internet has on weight loss? In order to determine the influence of the Internet on U.S. …

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Commerce In Religion, Bernadette Meyler Jan 2009

Commerce In Religion, Bernadette Meyler

Cornell Law Faculty Publications

As this Symposium Article contends, religion increasingly overlaps with the commercial sphere, and courts are obligated to determine whether or not to adopt an entirely hands-off approach simply because the specter of religion lurks on the horizon. Whereas the jurisprudence of the European Court of Human Rights tends to accept its member states' separation of commercial elements out from the protections more generally accorded to religion, the U.S. Supreme Court has treated the two spheres as overlapping. To the extent that each court does consider religious transactions in terms of commercial relations, each also arrives at a very different conception …

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A New Look At Judicial Impact: Attorneys' Fees In Securities Class Actions After Goldberger V. Integrated Resources, Inc., Theodore Eisenberg, Geoffrey P. Miller, Michael A. Perino Jan 2009

A New Look At Judicial Impact: Attorneys' Fees In Securities Class Actions After Goldberger V. Integrated Resources, Inc., Theodore Eisenberg, Geoffrey P. Miller, Michael A. Perino

Cornell Law Faculty Publications

Judicial impact studies have generally found widespread compliance by lower courts. Often, however, these studies employ relatively insensitive measures of compliance, limit their focus to compliance with Supreme Court precedent, and only occasionally examine the impact of judicial decisions on the ultimate consumers of those rulings - the members of society who are subject to them. Significant questions thus remain, such as whether and to what extent lower courts in fact comply with precedent and what if any role fear of reversal plays in compliance. To address these gaps, we use regression analysis to examine how the district courts in …

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Opportunistic Sensing: Security Challenges For The New Paradigm, Apu Kapadia, David Kotz, Nikos Triandopoulos Jan 2009

Opportunistic Sensing: Security Challenges For The New Paradigm, Apu Kapadia, David Kotz, Nikos Triandopoulos

Dartmouth Scholarship

We study the security challenges that arise in Opportunistic people-centric sensing, a new sensing paradigm leveraging humans as part of the sensing infrastructure. Most prior sensor-network research has focused on collecting and processing environmental data using a static topology and an application-aware infrastructure, whereas opportunistic sensing involves collecting, storing, processing and fusing large volumes of data related to everyday human activities. This highly dynamic and mobile setting, where humans are the central focus, presents new challenges for information security, because data originates from sensors carried by people— not tiny sensors thrown in the forest or attached to animals. In this …

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Supportive Communication, Sense Of Virtual Community And Health Outcomes In Online Infertility Groups, Jennifer L. Welbourne, Anita L. Blanchard, Marla D. Boughton Jan 2009

Supportive Communication, Sense Of Virtual Community And Health Outcomes In Online Infertility Groups, Jennifer L. Welbourne, Anita L. Blanchard, Marla D. Boughton

Management Faculty Publications

Women are turning to online health groups to deal with the stresses and complications of infertility. Online groups may provide a resource that is potentially absent in their face-to-face communities. This study examines how the sense of virtual community (SOVC) that develops in these groups serves as a buffer between perceived stress and physical health symptoms. A sample of 122 women from two virtual communities completed an online survey. Results show that observing the exchange of emotional support was positively related to SOVC while observing informational support was negatively related to SOVC. Further, SOVC was negatively related to physical health …

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Electro-Optical Switching Of The Holographic Polymer-Dispersed Liquid Crystal Diffraction Gratings, Pavani Kotakonda, Izabela Naydenova, Raghavendra Jallapuram, Suzanne Martin, Vincent Toal Jan 2009

Electro-Optical Switching Of The Holographic Polymer-Dispersed Liquid Crystal Diffraction Gratings, Pavani Kotakonda, Izabela Naydenova, Raghavendra Jallapuram, Suzanne Martin, Vincent Toal

Articles

Polymer-dispersed liquid crystal (PDLC) is a material promising for application in optical communications, diffractive optics and optical data storage. Diffraction gratings were optically recorded in a novel PDLC material developed at the Centre for Industrial and Engineering Optics. Details of the fabrication and preliminary results of electro-optical switching of the holographic PDLC (HPDLC) diffraction gratings are presented. The redistribution of LCs was observed by using phase contrast microscopy and confocal Raman spectroscopy.

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Improving The Profitability Of Direct Marketing : A Quantile Regression Approach, Xi Zhang Jan 2009

Improving The Profitability Of Direct Marketing : A Quantile Regression Approach, Xi Zhang

Lingnan Theses

Direct marketing is to target consumers who are most likely to respond. A number of target selection methods have been employed to select potential customers. These methods either only consider the customer response probability and ignore the profit issue or assume that the estimates of profit are homogenous across customers when considering the expected amount of profit. Furthermore, the traditional analytical techniques based on ordinary least squares (OLS) regression, which focus on the average customer, cannot examine the differences of various customer groups or account for customer heterogeneity in profitability estimates. Quantile regression, instead of the point estimate for the …

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Zinc-Finger Protein Mcpip In Cell Death And Differentiation, Craig Younce Jan 2009

Zinc-Finger Protein Mcpip In Cell Death And Differentiation, Craig Younce

Electronic Theses and Dissertations

Monocyte chemotactic protein-1 (MCP-1) plays a critical role in the development of cardiovascular diseases. How MCP-1 contributes to the development of heart disease is not understood. We present evidence that MCP-1 causes death in cardiac myoblasts, H9c2 by inducing oxidative stress, ER stress and autophagy via a novel Znfinger protein, MCP-1 induced protein (MCPIP). MCPIP expression caused cell death and knockdown of MCPIP, attenuated MCP-1 induced cell death. Expression of MCPIP resulted in induction of iNOS and production of reactive oxygen (ROS). It caused induction of NADPH oxidase subunit phox47 and its translocation to the cytoplasmic membrane. Oxidative stress led …

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Synthesis Of Biocompatible Antioixidant Polymer Coated Cerium Oxide Nanoparticles, Its Oxidase Like Behavior And Cellular Uptake, Atul Asati Jan 2009

Synthesis Of Biocompatible Antioixidant Polymer Coated Cerium Oxide Nanoparticles, Its Oxidase Like Behavior And Cellular Uptake, Atul Asati

Electronic Theses and Dissertations

Cerium oxide nanoparticles have been widely used for various applications such as catalytic converters for automobile exhaust, ultraviolet absorber, and electrolyte in fuel cells. Most recently, cerium oxide nanoparticles (nanoceria) have been employed as potent free-radical scavengers with neuroprotective, radioprotective, and anti-inflammatory properties. These properties of cerium oxide nanoparticles can open new vistas in medicine and biotechnology. The present study utilizes the water-based-wet-chemical method to synthesize biocompatible,stable and highly monodisperse polymer coated cerium oxide nanoparticles. Polymer coated cerium oxide nanoparticles possess all the characteristics of the uncoated cerium oxide nanoparticles. These nanoparticles were found to be effective as pH-dependent antioxidant …

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Determinants Of Chloroplast Gene Expression And Applications Of Chloroplast Transformation In Lactuca Sativa And Nicotiana Tabacum, Tracey Ruhlman Jan 2009

Determinants Of Chloroplast Gene Expression And Applications Of Chloroplast Transformation In Lactuca Sativa And Nicotiana Tabacum, Tracey Ruhlman

Electronic Theses and Dissertations

Genetic modification of plastids in the model plant tobacco (Nicotiana tabacum) has demonstrated that numerous foreign gene products can accumulate to high levels in this setting. Plastid biotechnology is maturing to encompass the improvement of food and feed species and the production of biopharmaceutical proteins for oral delivery necessitating development of stable transplastomic edible plants. In the interest of establishing an edible platform we have investigated the use of native and foreign regulatory elements in relation to foreign gene expression in plastids. Multiple sequence alignments of intergenic regions for 20 species of angiosperm showed that despite 95% identity in the …

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Integrating Universal Design For Learning Through Content Video With Preservice Teachers, Sara Aronin Jan 2009

Integrating Universal Design For Learning Through Content Video With Preservice Teachers, Sara Aronin

Electronic Theses and Dissertations

Given current legislation to ensure education for students with disabilities and that institutions of higher education are required to use universal design for learning (UDL) principles, the purpose of this study was to explore the impact of video modeling on preservice teachers' knowledge, understanding and application of the three principles of UDL. Preservice teachers were randomly assigned to control or experimental groups to determine if video embedded with UDL principles impacted their thinking. Specifically, pre and posttest information of knowledge and understanding as well as self-perceived ability to teach students with disabilities using UDL was analyzed. In addition preservice teacher …

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Videotaped Oral Reading Fluency Lab: An Alternative Approach To One-On-One Interventions For Intermediate Elementary Students With Learning Disabilities, Beth Christner Jan 2009

Videotaped Oral Reading Fluency Lab: An Alternative Approach To One-On-One Interventions For Intermediate Elementary Students With Learning Disabilities, Beth Christner

Electronic Theses and Dissertations

The ability to read aloud fluently is a reflection of one's ability to automatically decode words and comprehend text at the same time (Samuels, 2006), a task which may be difficult for many intermediate elementary students with learning disabilities (LD) (Ferrara, 2005). Previous research shows that audio-assisted repeated readings and goal-setting with feedback are effective methods of improving oral reading fluency (ORF) (Chard, Vaughn, & Tyler, 2002; Morgan & Sideridis, 2006; Therrien, 2004) but implementing these interventions may be time-consuming for teachers and tedious for students. The purpose of this research was to determine the impact of including repeated reading …

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Ucanfnsh: A Virtual Learning Environment Created To Engage And Inspire Self-Determination In Middle School Students With Learnin, Kara Rosenblatt Jan 2009

Ucanfnsh: A Virtual Learning Environment Created To Engage And Inspire Self-Determination In Middle School Students With Learnin, Kara Rosenblatt

Electronic Theses and Dissertations

This study explored the efficacy of using a virtual college campus to teach self-determination skills to middle school students with learning disabilities. Teaching self-determination skills is considered best practice for students with disabilities as they transition into adulthood. Three measures, a self-determination knowledge measurement scale, a behavior rubric, and 15 multiple choice questions measured self-determination knowledge and skill application ability with 71 middle school students with learning disabilities. The measures were used to determine whether the students who learned about self-determination skills in the virtual college setting during one training session displayed more knowledge and application of these skills than …

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Hedonic Property Value Modeling Of Water Quality, Lake Proximity, And Spatial Dependence In Central Florida, Patrick Walsh Jan 2009

Hedonic Property Value Modeling Of Water Quality, Lake Proximity, And Spatial Dependence In Central Florida, Patrick Walsh

Electronic Theses and Dissertations

Hedonic property value analysis is one of the leading methods of environmental valuation. This non-market technique uses variation in home sales to infer the values of amenities or disamenities. While there have been numerous studies about air quality and hazardous waste, the number of papers focusing on water quality is much smaller. Consequently, there are still many unanswered questions about the proper handling of water quality through hedonic methods. Furthermore, estimates from hedonic property price analyses are rarely used in government cost benefit analyses. This dissertation investigates several important hedonic issues in a large analysis of water quality in central …

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Go With The Flow: Examining The Effects Of Engagement Using Flow Theory And It's Relationship To Achievement And Performance, Karen Cooper Jan 2009

Go With The Flow: Examining The Effects Of Engagement Using Flow Theory And It's Relationship To Achievement And Performance, Karen Cooper

Electronic Theses and Dissertations

Virtual Worlds have become an attractive platform for work, play, and learning. Businesses, including the public sector and academia, are increasingly investing their time, money, and attention to understanding the value of virtual worlds as a productivity tool. For example, educators are leading the way with research in Second Life, one of the more popular virtual worlds, as a potentially powerful medium for creating and delivering instruction. Still, little is empirically known about the value of virtual worlds as viable learning platforms. This study examined the instructional potential of Second Life for creating engaging activities, and to investigate the relationship …

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Examining Factors Taht Affect Knowledge Sharing And Students' Attitude Toward Their Learning Experience Within Virtual Teams, Jinxia He Jan 2009

Examining Factors Taht Affect Knowledge Sharing And Students' Attitude Toward Their Learning Experience Within Virtual Teams, Jinxia He

Electronic Theses and Dissertations

This study examined factors that might impact student knowledge sharing within virtual teams through online discussion boards. These factors included: trust, mutual influence, conflict, leadership, and cohesion. A path model was developed to determine whether relationships exist among knowledge sharing from asynchronous group discussion and the above five factors. In addition, this study examined if there are any relationships between quality and quantity of knowledge sharing and students' grades. A correlation design was conducted to discover if there are any relationships among these five factors and knowledge sharing within virtual teams. Participants in this study were 148 undergraduate students from …

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Extending The Technology Acceptance Model Using Perceived User Resources In Higher Education Web-Based Online Learning Courses, Cheng-Hsin Ku Jan 2009

Extending The Technology Acceptance Model Using Perceived User Resources In Higher Education Web-Based Online Learning Courses, Cheng-Hsin Ku

Electronic Theses and Dissertations

The purpose of this research was to examine students' acceptance of the World Wide Web Course Tools (WebCT) online learning system. The Perceived Resources and Technology Acceptance Model (PRATAM) was created based on previous research to address the factors of perceived resources, perceived usefulness, perceived ease of use, attitude toward using, behavioral intention to use and actual system use. The aim for this research was to investigate the critical determinants and provide the causal relationships regarding students' acceptance behaviors when using WebCT. While institutions are expecting to adopt online learning to reach more students, there are still many challenges for …

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A Confirmation Factor Analysis Of Teaching Presence Within The Florida Online Reading Professional Development Program, Melinda Stevison Jan 2009

A Confirmation Factor Analysis Of Teaching Presence Within The Florida Online Reading Professional Development Program, Melinda Stevison

Electronic Theses and Dissertations

The Community of Inquiry model provides a framework for recognizing and evaluating interpersonal behaviors in online educational settings. One of its three components, teaching presence (TP), describes those behaviors that are under the auspices of the online instructor. By examining these interactions and behaviors through the theoretical lens provided by teaching presence, and by measuring them with the Teaching Presence Scale (TPS), it may be possible to gain greater understanding of the practices employed most effectively by online instructors. This dissertation describes the background, theoretical and empirical foundations, methods, and results of a study on TP. The purpose of the …

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An Investigation Of Linguistic, Cognitive, And Affective Factors That Impact English Language Learners' Performance On A State Standardized Reading Achievement Test, Carine Strebel Halpern Jan 2009

An Investigation Of Linguistic, Cognitive, And Affective Factors That Impact English Language Learners' Performance On A State Standardized Reading Achievement Test, Carine Strebel Halpern

Electronic Theses and Dissertations

The explicit teaching of reading comprehension strategies has been proposed as a means to better prepare secondary school-aged students for today's information-dense, fast-paced, fast-changing global society, and to improve the academic performance of struggling adolescent readers. This proposition of a direct and positive impact of reading comprehension strategies on reading achievement for all students has not been investigated with English language learners (ELLs) who, by definition, do not possess the same level of English language skills as their native-English speaking peers. This mixed-method study investigated linguistic, cognitive, as well as affective factors that impact adolescent ELLs' performance on a standardized …

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Character Education: Examining The Perceptions Of Elementary, Middle, And High School Teachers In A Central Florida School District, Jason Ampel Jan 2009

Character Education: Examining The Perceptions Of Elementary, Middle, And High School Teachers In A Central Florida School District, Jason Ampel

Electronic Theses and Dissertations

While schools are academic institutions to prepare our country's youth for their future, developing a child's character and civic responsibilities is necessary and is often deleted from the explicit curriculum set forth in most school districts throughout the country. This study investigated the perception of character education of teachers in a Central Florida school district, as it related to teacher importance, teacher efficacy, and teacher practice of character education. This study investigated the responses of 497 classroom teachers surveyed within one Central Florida school district. The questionnaire used in this study was designed to illuminate teacher perceptions of character education, …

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Content And Citation Analysis Of Interdesciplinary Humanities Textbooks Within A Framework Of Curriculum Theory, Julie Guidera Jan 2009

Content And Citation Analysis Of Interdesciplinary Humanities Textbooks Within A Framework Of Curriculum Theory, Julie Guidera

Electronic Theses and Dissertations

The purpose of this dissertation was to analyze the content of textbooks used in undergraduate survey courses in interdisciplinary humanities to understand the content of the curriculum and how an author's viewpoint shapes the product. By enumerating the texts and images authors and their publishers used to illustrate 20th century culture and the transition into the 21st century, the analysis generated a description of the range of perspectives from traditional to postmodern found in six sampled textbooks. Textbook content provided chronological data, while authors' source citations established identity properties of the works' contributors. Through a ranking system of authors' treatment …

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The Effect Of The Dove Evolution Film As A One-Shot Media Literacy Treatment, Daniel Wheeler Jan 2009

The Effect Of The Dove Evolution Film As A One-Shot Media Literacy Treatment, Daniel Wheeler

Electronic Theses and Dissertations

The purpose of this study is to test the effectiveness of the Dove Evolution film as a one-shot media literacy treatment to change sociocultural attitudes toward appearance. Four speech classes at the University of Central Florida were used in a Solomon four-group design. Group 1 received a posttest; Group 2 received a pretest and a posttest; Group 3 received the treatment and posttest; and Group 4 received the pretest, treatment and posttest. The treatment consisted of the Dove Evolution film, a viral video introduced in 2006 by Dove as part of its Campaign for Real Beauty. The film has received …

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Different Time, Same Place, Same Story? A Social Disorganization Perspective To Examining Juvenile Homicides, Minna Laurikkala Jan 2009

Different Time, Same Place, Same Story? A Social Disorganization Perspective To Examining Juvenile Homicides, Minna Laurikkala

Electronic Theses and Dissertations

In 2007, juveniles were involved in a minimum of 1,063 murders in the United States (Federal Bureau of Investigation, 2008), and a concern over juvenile homicide offenders remains. While increasingly more macrolevel research on juvenile homicide offending has been accumulated, particularly since the 1980s, research focusing on macrolevel correlates of juvenile homicides is still relatively scarce (MacDonald & Gover, 2005; Ousey & Campbell Augustine, 2001). In the first part of this study, several variables relating to the offender, victim, setting, and precursors to the homicide by race and gender were examined in order to provide details on the context of …

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Gabor Domain Optical Coherence Microscopy, Supraja Murali Jan 2009

Gabor Domain Optical Coherence Microscopy, Supraja Murali

Electronic Theses and Dissertations

Time domain Optical Coherence Tomography (TD-OCT), first reported in 1991, makes use of the low temporal coherence properties of a NIR broadband laser to create depth sectioning of up to 2mm under the surface using optical interferometry and point to point scanning. Prior and ongoing work in OCT in the research community has concentrated on improving axial resolution through the development of broadband sources and speed of image acquisition through new techniques such as Spectral domain OCT (SD-OCT). In SD-OCT, an entire depth scan is acquired at once with a low numerical aperture (NA) objective lens focused at a fixed …

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Nonlinear Femtosecond Near Infrared Laser Structuring In Oxide Glasses, Arnaud Royon Jan 2009

Nonlinear Femtosecond Near Infrared Laser Structuring In Oxide Glasses, Arnaud Royon

Electronic Theses and Dissertations

Three-dimensional femtosecond laser structuring has a growing interest because of its ease of implementation and the numerous possible applications in the domain of photonic components. Structures such as waveguides, diffraction gratings, optical memories or photonic crystals can be fabricated thanks to this technique. Its use with oxide glasses is promising because of several advantages; they are resistant to flux and ageing, their chemical composition can easily be changed to fit the well-defined requirements of an application. They can already be found in Raman amplifiers, optical fibers, fiber lasers, and other devices. This thesis is based on two axes. The first …

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Design And Fabrication Of Space Variant Micro Optical Elements, Pradeep Srinivasan Jan 2009

Design And Fabrication Of Space Variant Micro Optical Elements, Pradeep Srinivasan

Electronic Theses and Dissertations

A wide range of applications currently utilize conventional optical elements to individually transform the phase, polarization, and spectral transmission/reflection of the incident radiation to realize the desired system level function. The material properties and the feasibility of fabrication primarily impact the device and system functionality that can be realized. With the advancement in micro/nano patterning, growth, deposition and etching technology, devices with novel and multiplexed optical functionalities have become feasible. As a result, it has become possible to engineer the device response in the near and far field by controlling the phase, polarization or spectral response at the micro scale. …

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Honorable Chief Judge Harold Barefoot Sanders, N.D. Tex., The, Carolyn Sortor Jan 2009

Honorable Chief Judge Harold Barefoot Sanders, N.D. Tex., The, Carolyn Sortor

SMU Law Review

No abstract provided.

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Femtosecond Laser Written Volumetric Diffractive Optical Elements And Their Applications, Jiyeon Choi Jan 2009

Femtosecond Laser Written Volumetric Diffractive Optical Elements And Their Applications, Jiyeon Choi

Electronic Theses and Dissertations

Since the first demonstration of femtosecond laser written waveguides in 1996, femtosecond laser direct writing (FLDW) has been providing a versatile means to fabricate embedded 3-D microstructures in transparent materials. The key mechanisms are nonlinear absorption processes that occur when a laser beam is tightly focused into a material and the intensity of the focused beam reaches the range creating enough free electrons to induce structural modification. One of the most useful features that can be exploited in fabricating photonic structures is the refractive index change which results from the localized energy deposition. The laser processing system for FLDW can …

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