1,904 research outputs found
The Doppler Effect: Simulation, Prediction and Relationship to Source Parameters
This report has successfully demonstrated the implementation of programming for the development of a user interface to allow assessment of effect the occurrence and perceptibility of the Doppler effect, including source frequency, velocity, distance, path length and pitch. The parameters to be input into the GUI interface have been investigated, to demonstrate effectiveness of the concept itself, and a range of parameters have been recommended for use in the associated Matlab files to successfully analyse different parameter specifications in the modelling of the Doppler effect
Witness
The “Red Book” section of this work collects poems written with dream material. The “Couplings” poems investigate the mechanical and sexual implications of “coupling.” What is witnessed and how are the concerns of the poems in “Witness.
Local Land Conservation in Maine : Case Studies
https://digitalmaine.com/maine_coast_heritage_trust_publications/1000/thumbnail.jp
A Delphi Study Analyzing Perspectives of School Library Media Specialists\u27 Attitudes toward 21st Century Literacies
The present study has undertaken the exploration of the perceptions of (School Library Media Specialists) SLMSs regarding the tools and skills necessary to become 21st century literate. Moreover, the researcher attempted to explore how SLMSs are presently using technology to achieve their instructional goals related to 21st century literacy. Specifically, the researcher sought answers to the following research questions: 1. what is your definition of 21st century literacies? 2. what are the skills and tools necessary to be considered 21st century literate? 3. how do you incorporate 21st century literacies into the curriculum
Playing with Snow, with Peace and Freedom - English on the Margins: The educational experiences of young refugees in Bangkok, Thailand.
This thesis explores the educational experiences, needs and aspirations of young refugees living in extended exile in Bangkok, Thailand. The aim of the research was to elicit and document the perspectives of young refugees, in order to inform educational policy and programming in Bangkok and the wider region. An ethnographically inspired method was used, using diary data, semi-structured individual and focus group interviews, and two visual narrative projects. The methodology demonstrates the value of an ethnographically inspired approach in seeking child-friendly, context-driven and culturally responsive solutions to issues facing marginalized populations. The research data and its subsequent analysis indicated a significant need for alternatives to be developed for young refugees living in extended exile, who were unable to access mainstream school due to financial and legal restrictions; age, language and cultural barriers; and curriculums inappropriate to their needs, backgrounds and aspirations. In addition, the research highlighted a conflict between policy and practice in Thailand, showing how international, top-down policies, espousing access to school for young refugees, migrants and other non-citizen children, need to be more efficiently monitored and effectively implemented; ensuring not just the right to school, but also to a quality education that is relevant to their needs and backgrounds, and provides opportunities for a meaningful future. Schools, organisations and initiatives addressing these solutions must be more adequately supported, and less restricted in their efforts, actions and advocacy. The theories of Amartya Sen and Martha Nussbaum have been used to create a capability framework of recommendations for refugee education in Bangkok that addresses these needs; is culturally responsive and relevant to an urban refugee context; and builds on the experiences, perspectives, and aspirations expressed by the young research participants living in extended exile in Bangkok, Thailand
The Role of Investor Relations in Crisis Communications
By the end of the 2000s, Domino’s Pizza Inc. was facing decreasing sales and a dwindling stock price, as consumers were frequently disappointed in the quality of the chain’s food. In April 2009, the pizza giant was faced with a sudden crisis when a YouTube video surfaced showing employees contaminating food with bodily functions.
This study will focus on the events following the crisis. Specifically, the study will examine Dominos’ unique pivot towards a transparent communications strategy in hopes of revitalizing its business model and its share price.
The methodology used to explore Domino’s new communications approach includes an in-depth examination of Domino’s communications and advertisements. Further research included heavy analysis of media publications and analyst recommendations surrounding the company.
The analysis will argue that Domino’s used an innovative communications strategy centered on transparency and honesty to revitalize its business. Additionally, this study will argue that the company’s approach fully aligns with the Page Principles, seven key guidelines for public relations professionals.
Ultimately, Domino’s multi-step approach will be considered a model for future crisis communications efforts. The campaigns have resulted in a 13 times return for Domino’s share price over the past seven years and have led to the company being named the World’s Top Pizza Chain by Business Insider
Microrheology to explore protein and cell dynamics
In this thesis, I explore the applications of optical tweezers and passive video particle tracking
microrheology for bioanalytical applications.
Microrheology is a branch of rheology that has the same principles as conventional bulk rheology,
but which works on micron length scales. Microrheological techniques relate the free or the driven
motion of micron-sized tracer particles suspended in the fluid under investigation to the ‘elastic’
and ‘viscous’ components of the material. These components can be related to the dynamics of the
molecules that make up the fluid, and thus microrheology has the potential to reveal new
information about the microscopic properties of complex materials.
Optical tweezers are sensitive instruments that have been used to apply forces on the order of pN
and to measure the displacements down to nm of objects ranging in size from 10 nm to over
100μm, making them an essential tool for microrheology. Here, we have developed a new set of
analytical methods for microrheological measurements of biological and bio-analytical systems. In
particular, we have developed two new self-consistent procedures for measuring the linear
viscoelastic properties of materials across the widest frequency range achievable with optical
tweezers (Phys.Review E. (2010) 81:2, and J. Optics (2011) 13:4). Furthermore, we present a
straightforward procedure for measuring the in vivo linear viscoelastic properties of single cells via
passive video particle tracking microrheology of single beads attached to the cells’ exterior.
Notably, the procedure presented here represents an alternative methodology that can be extended
to many experimental formats and provides a simple addition to existing cellular physiology
studies.
In addition, we introduce new methodologies for deriving the concentration scaling laws of
polymer and biopolymer solutions from microrheological measurements carried out with optical
tweezers. These methods have been adopted to investigate the concentration scaling laws of in vitro
reconstituted actin solutions and actin/myosin solution
The Positive Alternative Credit Experience (PACE) Program A Quantitative Comparative Study
The purpose of this quantitative comparative study was to evaluate the Positive Alternative Credit Experience (PACE) Program using an objectives-oriented approach to a formative program evaluation. The PACE Program was a semester-long high school alternative education program designed to serve students at-risk for academic failure or dropping out and was operated by a large suburban school district located in St. Louis, Missouri. The outcome objectives of the program were to improve student success as measured by (a) an increase in grade point average (GPA), (b) an increase in attendance rate, (c) a decrease, or elimination of out-of-school suspension (OSS) rate, and (d) a decrease or elimination of dropout rate. Outcome data collected from a sample of students who attended the PACE Program in 2008-2009 were compared to outcome data collected from a Matched Sample of students with matching descriptive and demographic characteristics who did not participate in the program in 2008-2009. Data analysis determined if there was a significant difference in measured student success when comparing the PACE Sample (students who attended the PACE Program and subsequently returned to their home schools for one semester), with a Matched Sample (students who attended a traditional high school during this same timeframe). Purposive sampling was used to select the PACE Sample, and stratified random sampling was used to select the Matched Sample. The PACE Sample of 36 students was comprised of a Semester I PACE Cohort of 18 students and a Semester II PACE Cohort of 18 students. The Matched Sample and Semester I and II Matched Cohorts were identical in size. iii When the descriptive and demographic characteristic variables of the PACE and Matched Cohorts and Samples were statistically compared, there were no significant differences on the descriptive characteristic variables of cumulative GPA, attendance rate, and OSS rate. The descriptive characteristic variable of current GPA of the Matched Sample was significantly higher, however, than the current GPA of the PACE Sample. When demographic characteristic variables of the PACE and Matched Samples were statistically compared there were no significant differences in grade level, ethnicity, residence, gender, Individualized Education Plan (IEP) status, and Free and Reduced Lunch (FRL) status. The results of data analysis did not show statistically significant differences in the outcome variables of GPA (cumulative and current), attendance rate, and OSS rate of the PACE or Matched Samples. However, when the outcome variable of dropout rate was analyzed, there was a statistically significant increase in the dropout rate of the Matched Sample. The results of data analysis also revealed that the Matched Sample had a higher dropout when compared to the PACE Sample, and this difference was also statistically significant
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Thesis (M.S.
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