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2007

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Using Technology Supported Inquiry Learning To Engage First Year Students In Large Classes, Ron Oliver Jan 2007

Using Technology Supported Inquiry Learning To Engage First Year Students In Large Classes, Ron Oliver

Research outputs pre 2011

This paper describes a study that explored the promotion of learner engagement among first year students through a technology facilitated inquiry learning approach. Students were given a series of authentic inquiry tasks supported by a raft of learning scaffolds. The technology-facilitated system supported timely feedback and support and administrative efficiencies for the tutors and teacher. This paper describes the web based system and reports aspects of an inquiry exploring the factors seen to influence students' levels of engagement and achievement. Recommendations are drawn from the study for further instantiations of the approach with appropriate revisions and changes.

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Critiquing The School Community: A Qualitative Study Of Children's Conceptualization Of Their School, Julie Ann Pooley, Lauren Breen, Lisbeth T. Pike, Lynne Cohen, Neil M. Drew Jan 2007

Critiquing The School Community: A Qualitative Study Of Children's Conceptualization Of Their School, Julie Ann Pooley, Lauren Breen, Lisbeth T. Pike, Lynne Cohen, Neil M. Drew

Research outputs pre 2011

Schools are traditionally seen as responsible for the educational outcomes of our children. However, schools also play an important role in the development of aspects such as selfefficacy, participation, competence and self-determination. As schools are often run as societies rather than communities, they offer little opportunity for these attributes (selfefficacy, participation, competence and self-determination) to develop. Forty-six children aged from nine to 12 years were interviewed to ascertain their conceptualizations of the school community. The children define their school in terms of people, places for activities and interaction, a place for safety, cooperation, influence and functionality. The responses closely align …

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Heat Shock Protein 90: A Potential Therapeutic Target In Leukemic Progenitor And Stem Cells Harboring Mutant Bcr-Abl Resistant To Kinase Inhibitors, C Peng, Dongguang Li, L Shaoguang Jan 2007

Heat Shock Protein 90: A Potential Therapeutic Target In Leukemic Progenitor And Stem Cells Harboring Mutant Bcr-Abl Resistant To Kinase Inhibitors, C Peng, Dongguang Li, L Shaoguang

Research outputs pre 2011

Development of drug resistance has become a major obstacle for tyrosine kinase inhibitors (TKIs) in the treatment of Philadelphia chromosome-positive (Ph+) chronic myelogenous leukemia (CML) and other cancers. The BCR-ABL-T315I mutant does not respond to clinically available TKIs, although some newly developed anti-BCR-ABL-T315I TKIs are now being tested in patients. TKIs transiently inhibit kinase activity of BCR-ABL, but do not reduce the level of the BCR-ABL protein. Elimination of mutant BCR-ABL protein would provide a new therapeutic strategy for treating Ph+ leukemia. We recently showed that inhibition of heat shock protein 90 (Hsp90) by a novel Hsp90 inhibitor, IPI-504, causes …

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Cylindrical Quasi-Cavity Waveguide For Static Wide Angle Pattern Projection, Kaveh Sahba, Kamal Alameh, Clifton Smith, Arie Paap Jan 2007

Cylindrical Quasi-Cavity Waveguide For Static Wide Angle Pattern Projection, Kaveh Sahba, Kamal Alameh, Clifton Smith, Arie Paap

Research outputs pre 2011

Beam deflection methods such as rotary mirrors and motorized turning optical heads suffer from a variety of electro-mechanical related problems which affect laser scanning performance. These include wobble, jitter, wear, windage and synchronization issues. A novel optical structure consisting of two concentric and cylindrical interfaces with unique optical coating properties for the static projection of a laser spot array over a wide angle is demonstrated. The resulting ray trajectory through the waveguide is modeled using linear equations. Spot size growth is modeled using previously defined ray transfer matrices for tilted optical elements. The model is validated by comparison with experimental …

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Reliability Of Kinematics And Kinetics Associated With Horizontal Single Leg Drop Jump Assessment: A Brief Report, M. Stalbom, D.J. Holm, John Cronin, J.W.L. Keogh Jan 2007

Reliability Of Kinematics And Kinetics Associated With Horizontal Single Leg Drop Jump Assessment: A Brief Report, M. Stalbom, D.J. Holm, John Cronin, J.W.L. Keogh

Research outputs pre 2011

Determining the reliability of a unilateral horizontal drop jump for displacement provided the focus for this research. Eighteen male subjects were required to step off a 20cm box and land on a force plate with one leg and thereafter jump for maximal horizontal displacement on two different days. Dependent variables from the jump assessment included mean and peak vertical (V) and horizontal (H) ground reaction forces (GRF) and impulses, horizontal displacement and contact time. The between-trial variability of all kinematic and kinetic measures was less than 7%. The most consistent measure over both trials was the horizontal displacement jumped (1.2 …

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A Gui For The Deaf-Blind: An Additional Concepts Paper, David Veal Jan 2007

A Gui For The Deaf-Blind: An Additional Concepts Paper, David Veal

Research outputs pre 2011

People with some residual vision though still classified as blind may be able to read on screen patterns presented via a computer program whereby such a pattern can represent a textual character and a presentation of sequences of such patterns can represent words. These patterns can be adjusted to utilize the user’s remaining vision capacity. Previous research has shown that volunteers who where legally classified as blind could read simple sentences via such a system. This system is known as the Dynamic Pattern System (DPS) and is a test bed for research. Although this research involved a single pattern represented …

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It Devices And Energy Consumption, David Veal Jan 2007

It Devices And Energy Consumption, David Veal

Research outputs pre 2011

The need for energy conservation has been topical for many years and has gained importance with global warming scenarios and the increasing cost of energy. This paper examines energy consumption of common home IT devices such as routers, voice boxes, PCs and printers with respect to minimising standby power. Another problem of concern in energy usage as related to IT activity is the increasing electrical power consumption levels of data centres, along with data centre cooling problems and the attempts to enhance their energy efficiency. These scenarios illustrate small amounts of energy consumption used by vast numbers of device compared …

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Fibre Bragg Grating Sensors For Acoustic Emission And Transmission Detection Applied To Robotic Nde In Structural Health Monitoring, Graham Wild, Steven Hinckley Jan 2007

Fibre Bragg Grating Sensors For Acoustic Emission And Transmission Detection Applied To Robotic Nde In Structural Health Monitoring, Graham Wild, Steven Hinckley

Research outputs pre 2011

Distributed acoustic emission sensors are used in structural health monitoring (SHM) for the detection of impacts and/or strain, in real time. Secondary damage may result from the initial impact or strain. This damage may include surface pitting, erosion, or cracking. This type of damage may not be detectable by the SHM system, specifically in passive fiber optic based sensing systems. The integration of non-destructive evaluation (NDE) by robots into SHM enables the detection and monitoring of a wider variety of damage. Communicating via acoustic transmissions represents a wireless communications method for use by NDE inspection robots to communicate with an …

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Recruiting And Retaining Gps And Patients In Intervention Studies: The Deps-Gp Project As A Case Study, M Williamson, J Pirkis, J Pfaff, O Tyson, Moira Sim, N Kerse, N Lautenschlager, N Stocks, O Almeida Jan 2007

Recruiting And Retaining Gps And Patients In Intervention Studies: The Deps-Gp Project As A Case Study, M Williamson, J Pirkis, J Pfaff, O Tyson, Moira Sim, N Kerse, N Lautenschlager, N Stocks, O Almeida

Research outputs pre 2011

Background: Recruiting and retaining GPs for research can prove difficult, and may result in sub-optimal patient participation where GPs are required to recruit patients. Low participation rates may affect the validity of research. This paper describes a multi-faceted approach to maximise participation of GPs and their patients in intervention studies, using an Australian randomised controlled trial of a depression/suicidality management intervention as a case study. The paper aims to outline experiences that may be of interest to others considering engaging GPs and/or their patients in primary care studies. Methods: A case study approach is used to describe strategies for: (a) …

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Do Current Erasure Programs Remove Evidence Of Bittorrent Activity?, Andrew Woodward, Craig Valli Jan 2007

Do Current Erasure Programs Remove Evidence Of Bittorrent Activity?, Andrew Woodward, Craig Valli

Research outputs pre 2011

This research in progress aims to evaluate the effectiveness of commercial programs to erase traces of the use of BitTorrent software. The erasure programs MaxErase, P2PDoctor, Privacy Suite, Window Washer and R-Clean and Wipe were used on a machine that had used the BitTorrent client Azureus to download two torrent files. The drive was imaged and then searched for torrent files. The registry was also examined on the source machine. The program R-Clean and Wipe left evidence in both the registry and the image of the name and type of files that had been downloaded with this software. Of greater …

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Istart 2: Improvements For Efficiency And Effectiveness, Irwin B. Levinstein, Chutima Boonthum, Srinivasa P. Pillarisetti, Courtney Bell, Danielle S. Mcnamara Jan 2007

Istart 2: Improvements For Efficiency And Effectiveness, Irwin B. Levinstein, Chutima Boonthum, Srinivasa P. Pillarisetti, Courtney Bell, Danielle S. Mcnamara

Computer Science Faculty Publications

iSTART (interactive strategy training for active reading and thinking) is a Web-based reading strategy trainer that develops students' ability to self-explain difficult text as a means to improving reading comprehension. Its curriculum consists of modules presented interactively by pedagogical agents: an introduction to the basics of using reading strategies in the context of self-explanation, a demonstration of self-explanation, and a practice module in which the trainee generates self-explanations with feedback on the quality of reading strategies contained in the self-explanations. We discuss the objectives that guided the development of the second version of iSTART toward the goals of increased efficiency …

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Adaptive Segregation-Based Mac Protocol For Real-Time Multimedia Traffic In Wlans, Hushairi Zen, Daryoush Habibi, Alexander Rassau, Justin Wyatt Jan 2007

Adaptive Segregation-Based Mac Protocol For Real-Time Multimedia Traffic In Wlans, Hushairi Zen, Daryoush Habibi, Alexander Rassau, Justin Wyatt

Research outputs pre 2011

Wireless local area networks (WLANs) have become very popular both in private and public sectors. Despite the fast expansion of WLANs in various environments, quality of service (QoS) issues for multimedia applications in WLANs are not yet resolved. Multimedia applications contain traffic that are sensitive to delay and jitter and therefore a best-effort protocol such as the legacy IEEE 802.11 is not suitable. The 802.11e protocol provides prioritization and classification of traffic to offer better QoS for real-time services. However, it leaves the design and implementation of many important optimization features to vendors. In this paper we introduce a mechanism …

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Providing Qos For Symmetrical Voice/Video Traffic In Wireless Networks, Justin Wyatt, Daryoush Habibi, Iftekhar Ahmad, Hushairi Zen Jan 2007

Providing Qos For Symmetrical Voice/Video Traffic In Wireless Networks, Justin Wyatt, Daryoush Habibi, Iftekhar Ahmad, Hushairi Zen

Research outputs pre 2011

Voice over IP (VoIP) and voice-video over IP (VIoIP) are becoming very popular and widespread. These types of real-time services produce streams that are almost symmetrical in nature. A new token passing media access control (MAC) developed by our group, called wireless token network (WTN), has been designed with QoS guarantees in mind. We have previously shown in our previous paper (2006) that WTN supports a higher number of VoIP clients compared to 802.11e due to its higher channel efficiency. In this paper we show that WTN also provides superior QoS for bidirectional streams such as VIoIP due to a …

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Profiling Through A Digital Mobile Device, Lee Fueng Yap, Andrew Jones Jan 2007

Profiling Through A Digital Mobile Device, Lee Fueng Yap, Andrew Jones

Research outputs pre 2011

Mobile digital devices have evolved from telecommunications device to a lifestyle product over the years. These devices are used in all aspects of our daily life. As a result, more information is stored within the devices. Unprotected mobile digital device is susceptible to privacy invasion attack when the device falls into the wrong hand of any unscrupulous third party. The main objective of this paper is to provide an implication analysis on the possible risks of information leakage through digital mobile devices, in the case when users forget to, or choose never to apply any security protection to their devices

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Assessing The Format Of The Presentation Of Text In Developing A Reading Strategy Assessment Tool (R-Sat), Sara Gilliam, Joseph P. Magliano, Keith K. Millis, Irwin Levinstein, Chutima Boonthum Jan 2007

Assessing The Format Of The Presentation Of Text In Developing A Reading Strategy Assessment Tool (R-Sat), Sara Gilliam, Joseph P. Magliano, Keith K. Millis, Irwin Levinstein, Chutima Boonthum

Computer Science Faculty Publications

We are constructing a new computerized test of reading comprehension called the Reading Strategy Assessment Tool (R-SAT). R-SAT elicits and analyzes verbal protocols that readers generate in response to questions as they read texts. We examined whether the amount of information available to the reader when reading and answering questions influenced the extent to which R-SAT accounts for comprehension. We found that R-SAT was most predictive of comprehension when the readers did not have access to the text as they answered questions.

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Opto-Vlsi-Based Reconfigurable Free Space Optical Interconnects Architecture, Muhsen Aljada, Kamal Alameh, Yong Lee, I-S Chung Jan 2007

Opto-Vlsi-Based Reconfigurable Free Space Optical Interconnects Architecture, Muhsen Aljada, Kamal Alameh, Yong Lee, I-S Chung

Research outputs pre 2011

This paper presents a short-distance reconfigurable high-speed optical interconnects architecture employing a Vertical Cavity Surface Emitting Laser (VCSEL) array, Opto-very-large-scale-integrated (Opto-VLSI) processors, and a photodetector (PD) array. The core component of the architecture is the Opto-VLSI processor which can be driven by digital phase steering and multicasting holograms that reconfigure the optical interconnects between the input and output ports. The optical interconnects architecture is experimentally demonstrated at 2.5 Gbps using high-speed 1×3 VCSEL array and 1×3 photoreceiver array in conjunction with two 1×4096 pixel Opto-VLSI processors. The minimisation of the crosstalk between the output ports is achieved by appropriately aligning …

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Rerouting Technique For Faster Restoration Of Preempted Calls, Iftekhar Ahmad, Joarder Kamruzzaman, Daryoush Habibi Jan 2007

Rerouting Technique For Faster Restoration Of Preempted Calls, Iftekhar Ahmad, Joarder Kamruzzaman, Daryoush Habibi

Research outputs pre 2011

In a communication network where resources are shared between instantaneous request (IR) and book-ahead (BA) connections, activation of future BA connections causes preemption of many on-going IR connections upon resource scarcity. A solution to this problem is to reroute the preempted calls via alternative feasible paths, which often does not ensure acceptably low disruption of service. In this paper, a new rerouting strategy is proposed that uses the destination node to initiate the rerouting and thereby reduces the rerouting time, which ultimately improves the service disruption time. Simulations on a widely used network topology suggest that the proposed rerouting scheme …

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All Minimal Prime Extensions Of Hereditary Classes Of Graphs, Vassilis Giakoumakis, Stephan Olariu Jan 2007

All Minimal Prime Extensions Of Hereditary Classes Of Graphs, Vassilis Giakoumakis, Stephan Olariu

Computer Science Faculty Publications

The substitution composition of two disjoint graphs G1 and G2 is obtained by first removing a vertex x from G2 and then making every vertex in G1 adjacent to all neighbours of x in G2. Let F be a family of graphs defined by a set Z* of forbidden configurations. Giakoumakis [V. Giakoumakis, On the closure of graphs under substitution, Discrete Mathematics 177 (1997) 83–97] proved that F∗, the closure under substitution of F, can be characterized by a set Z∗ of forbidden configurations — the minimal prime extensions of Z. He also …

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Network Engineering For C-Commerce Innovation: The Role Of Trust, Mark Brogan, Leisa Armstrong Jan 2007

Network Engineering For C-Commerce Innovation: The Role Of Trust, Mark Brogan, Leisa Armstrong

Research outputs pre 2011

The idea that social networks play an important role in knowledge diffusion of innovation has a long pedigree in innovation theory. In his Diffusion of Innovation (DOI) theory, Rogers (1995) argued that in the information network of the organization, managerial champions and opinion leaders could affect both organizational acceptance and also the velocity of adoption of innovation. In Small to Medium Enterprise (SME) C-commerce innovation, the role of such social factors has been understood in terms of ‘embedded network structure’ (Braun, 2003) that impacts on clustering behavior. This article explores the use of quantitative Social Network Analysis (SNA) to model …

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Optimization Of Liquid-Crystal Spatial Light Modulator For Precise Phase Generation, Seow-Hwang Eng, Dong Mei Cai, Zhenglin Wang, Kamal Alameh, Wenhan Jiang Jan 2007

Optimization Of Liquid-Crystal Spatial Light Modulator For Precise Phase Generation, Seow-Hwang Eng, Dong Mei Cai, Zhenglin Wang, Kamal Alameh, Wenhan Jiang

Research outputs pre 2011

Spatial light modulators (SLMs) are recently emerging as wavefront generation or reconstruction devices. In this paper, we use a liquid-crystal SLM (LC-SLM) as a wavefront generation device through the modulation of the spatial phase distribution of an incident light beam. We characterize the phase modulation performance of the LC-SLM, and identified a polarization-configuration to minimize its amplitude modulation effects in order to maximize the contrast of reconstructed phase holograms. We also investigated the feasibility of determining the optical surface uniformity of the LC-SLM through computations of the interference fringes, and identified the disadvantages of this method. This new approach may …

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How Much Preservation Do I Get If I Do Absolutely Nothing? Using The Web Infrastructure For Digital Preservation, Martin Klein, Frank Mccown, Joan A. Smith, Michael Nelson Jan 2007

How Much Preservation Do I Get If I Do Absolutely Nothing? Using The Web Infrastructure For Digital Preservation, Martin Klein, Frank Mccown, Joan A. Smith, Michael Nelson

Computer Science Faculty Publications

To date, most of the focus regarding digital preservation has been on removing copies of the resources to be preserved from the “living web” and placing them in an archive for controlled curation. Once inside an archive, the resources are subject to careful processes of refreshing (making additional copies to new media) and migrating (conversion to new formats and applications). For small numbers of resources of known value, this is a practical and worthwhile approach to digital preservation. However, due to the infrastructure costs (storage, networks, machines) and more importantly the human management costs, this approach is unsuitable for web …

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Brass: A Queueing Manager For Warrick, Frank Mccown, Amine Benjelloun, Michael L. Nelson Jan 2007

Brass: A Queueing Manager For Warrick, Frank Mccown, Amine Benjelloun, Michael L. Nelson

Computer Science Faculty Publications

When an individual loses their website and a backup can-not be found, they can download and run Warrick, a web-repository crawler which will recover their lost website by crawling the holdings of the Internet Archive and several search engine caches. Running Warrick locally requires some technical know-how, so we have created an on-line queueing system called Brass which simplifies the task of recovering lost websites. We discuss the technical aspects of recon-structing websites and the implementation of Brass. Our newly developed system allows anyone to recover a lost web-site with a few mouse clicks and allows us to track which …

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Crate: A Simple Model For Self-Describing Web Resources, Joan A. Smith, Michael L. Nelson Jan 2007

Crate: A Simple Model For Self-Describing Web Resources, Joan A. Smith, Michael L. Nelson

Computer Science Faculty Publications

If not for the Internet Archive’s efforts to store periodic snapshots of the web, many sites would not have any preservation prospects at all. The barrier to entry is too high for everyday web sites, which may have skilled webmasters managing them, but which lack skilled archivists to preserve them. Digital preservation is not easy. One problem is the complexity of preservation models, which have specific meta-data and structural requirements. Another problem is the time and effort it takes to properly prepare digital resources for preservation in the chosen model. In this paper, we propose a simple preservation model called …

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Providing Vanet Security Through Active Position Detection, Gongjun Yan, Gyanesh Choudhary, Michele C. Weigle, Stephan Olariu Jan 2007

Providing Vanet Security Through Active Position Detection, Gongjun Yan, Gyanesh Choudhary, Michele C. Weigle, Stephan Olariu

Computer Science Faculty Publications

Our main contribution is a novel approach to enhancing position security in VANET. We achieve local and global position security by using the on-board radar to detect neighboring vehicles and to confirm their announced coordinates. We compute cosine similarity among data collected by radar and neighbors' reports to filter the forged data from the truthful data. Based on filtered data, we create a history of vehicle movement. By checking the history and computing similarity, we can prevent a large number of Sybil attacks and some combinations of Sybil and position-based attacks.

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Sampled Fiber Gratings For High-Resolution And High-Speed Photonic Signal Processing, Mingya Shen, Kamal Alameh Jan 2007

Sampled Fiber Gratings For High-Resolution And High-Speed Photonic Signal Processing, Mingya Shen, Kamal Alameh

Research outputs pre 2011

A novel sampled grating for high-resolution, highspeed signal processing is presented. Simulation based on Sinc2 sampled and rational sampled fiber grating modeling show that a large number of sub-ps time delay steps are attainable, corresponding to a sampling frequency in excess of 1THz. Design method is described for deriving sampling functions that meet specific true-time-delay profile requirements.

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Some Problems In Network And Data Centre Management, David Veal, Gurpreet Kohli Jan 2007

Some Problems In Network And Data Centre Management, David Veal, Gurpreet Kohli

Research outputs pre 2011

Computer networks are vital to the running of modern organisations. Network managers are often concerned with the running of data centres. This paper provides an overview of some of the more important issues in managing modern computer networks and data centres and the problems faced in undertaking this task. It would be impossible to provide a complete list which, due to the fluid nature of this industry, would become outdated very quickly. It is important that network managers have an awareness of modern Occupational Health and Safety (OHS) requirements, training and skills. There is also a need for network managers …

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Success? The Impact Of Involving Customers In E-Commerce Development, Julian Terry, Craig Standing Jan 2007

Success? The Impact Of Involving Customers In E-Commerce Development, Julian Terry, Craig Standing

Research outputs pre 2011

In e-commerce, customers have become Information System users. In this environment of non-mandatory usage, remote, untrained users need to quickly feel comfortable and satisfied with a site encounter. Throughout the literature for four decades, a commonly cited factor pertaining to system success has been user participation in the systems development process. Among other things this is likely to lead to increased user satisfaction and the perceived usefulness of the application. This study uses findings from thirty cases of recently completed e-commerce sites in which project leaders accounts of customer participation in e-commerce development activities are analysed, along with their perceptions …

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Iso 9001: Quality Management System Manual, Revision M, 2006-2007 Edition, American Institute Of Certified Public Accountants (Aicpa) Jan 2007

Iso 9001: Quality Management System Manual, Revision M, 2006-2007 Edition, American Institute Of Certified Public Accountants (Aicpa)

Guides, Handbooks and Manuals

No abstract provided.

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Computer Simulation Of Stand-Off Libs And Raman Lidar For Remote Sensing Of Distant Compounds, Dzianis Pliutau Jan 2007

Computer Simulation Of Stand-Off Libs And Raman Lidar For Remote Sensing Of Distant Compounds, Dzianis Pliutau

USF Tampa Graduate Theses and Dissertations

Long range stand-off Raman and Laser-Induced Breakdown Spectroscopy (LIBS) lidar signal simulations have been carried out using a modified UV-visible atmospheric transmission program and a modified lidar equation. The Hitran-PC atmospheric transmission program which normally operates over the wavelength range of 400 nm to the far-IR was modified to provide UV atmospheric attenuation (200 nm -- 400 nm) using the optical cross section data contained in the HITRAN database. The two-way lidar equation was modified in order to simulate the one-way propagation of the Raman and LIBS spectral, and thus provide calculations of the expected Raman or LIBS signal as …

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The Art Of Existentialism: F. Scott Fitzgerald, Ernest Hemingway, Norman Mailer And The American Existential Tradition, J'Aimã© L. Sanders Jan 2007

The Art Of Existentialism: F. Scott Fitzgerald, Ernest Hemingway, Norman Mailer And The American Existential Tradition, J'Aimã© L. Sanders

USF Tampa Graduate Theses and Dissertations

The purpose of my research is to examine the philosophic influences on three literary works: F. Scott Fitzgerald's The Great Gatsby, Ernest Hemingway's Death in the Afternoon, and Norman Mailer's An American Dream. Through an investigation of biographical, historical, cultural, and textual evidence, I will argue for the influence of several European philosophers---Friedrich Nietzsche, Søren Kierkegaard, and Martin Heidegger---on these authors and on the structures and messages of their works. I will discuss how the specific works I have selected not only reveal each author's apt understanding of the existential-philosophical crises facing the individual in the twentieth century, but also …

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