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Derivation of the Thematic Material and Intervallic Gestures From the Main Theme in Fantasia Carioca By Sérgio Assad
The quantity of classical guitar literature reached a new peak late in the twentieth century with many famous guitarists publishing their own works for solo classical guitar. This increase in the published guitar literature resulted in a decline of the relative analytical discussions of contemporary guitar works. Sérgio Assad is a perfect example of an active guitarist/composer whose works are frequently performed in guitar recitals and yet very little discussion has been provided attempting to gain a deeper understanding of his compositional language. The purpose of this study is to two-fold: first, to show that Fantasia Carioca (1994) is a very carefully organized work and includes an intricate network of thematic material developed through a spectrum of intervallic gestures, of which all derive from the main theme of the piece; second, to provide a deeper insight into the compositional language of Sérgio Assad through a demonstration of different compositional procedures to which the composer resorts. This one-movement piece reveals a high level of organization present in Sérgio Assad's style. The entire thematic material is carefully derived from the main theme. Each thematic unit shows a set of predetermined characteristics that allow these units to react to particular textures and situations. …
Date:
May 2013
Creator:
Abdihodži?, Armin
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Boosting for Learning From Imbalanced, Multiclass Data Sets
In many real-world applications, it is common to have uneven number of examples among multiple classes. The data imbalance, however, usually complicates the learning process, especially for the minority classes, and results in deteriorated performance. Boosting methods were proposed to handle the imbalance problem. These methods need elongated training time and require diversity among the classifiers of the ensemble to achieve improved performance. Additionally, extending the boosting method to handle multi-class data sets is not straightforward. Examples of applications that suffer from imbalanced multi-class data can be found in face recognition, where tens of classes exist, and in capsule endoscopy, which suffers massive imbalance between the classes. This dissertation introduces RegBoost, a new boosting framework to address the imbalanced, multi-class problems. This method applies a weighted stratified sampling technique and incorporates a regularization term that accommodates multi-class data sets and automatically determines the error bound of each base classifier. The regularization parameter penalizes the classifier when it misclassifies instances that were correctly classified in the previous iteration. The parameter additionally reduces the bias towards majority classes. Experiments are conducted using 12 diverse data sets with moderate to high imbalance ratios. The results demonstrate superior performance of the proposed method compared …
Date:
December 2013
Creator:
Abouelenien, Mohamed
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Qos Aware Service Oriented Architecture
Service-oriented architecture enables web services to operate in a loosely-coupled setting and provides an environment for dynamic discovery and use of services over a network using standards such as WSDL, SOAP, and UDDI. Web service has both functional and non-functional characteristics. This thesis work proposes to add QoS descriptions (non-functional properties) to WSDL and compose various services to form a business process. This composition of web services also considers QoS properties along with functional properties and the composed services can again be published as a new Web Service and can be part of any other composition using Composed WSDL.
Date:
August 2013
Creator:
Adepu, Sagarika
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Spatial Mismatch Between Hiv Infection and Access to Hiv Service Facilities in Texas
Since 2004, the number of people living with HIV (PLWH) has steadily increased by about 5% and currently, the number in Texas is about 86,000. Though the National HIV/AIDS Strategic Plan seeks to ensure “unfettered access to quality healthcare”, barriers to access still exist especially among minority populations. This study examines the relationship between HIV infection rates and the geographic location of HIV service centers with a focus on 4 counties: namely, Dallas, Denton, Harris and Tarrant. The goal is to show whether there is a spatial mismatch between HIV rates and service providers. Are service facilities located in zip codes where they are most needed? Using the vulnerability framework and the Inverse Care Law (ICL), we address the research question using demographic variables (race/ethnicity, sex, poverty, education attainment) and HIV data. Our results show that extreme vulnerable zip codes have high HIV rates and closest proximity to HIV service providers.
Date:
August 2013
Creator:
Aggrey Korsah, Emmanuel
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Energy Harvesting Wireless Piezoelectric Resonant Force Sensor
The piezoelectric energy harvester has become a new powering option for some low-power electronic devices such as MEMS (Micro Electrical Mechanical System) sensors. Piezoelectric materials can collect the ambient vibrations energy and convert it to electrical energy. This thesis is intended to demonstrate the behavior of a piezoelectric energy harvester system at elevated temperature from room temperature up to 82°C, and compares the system’s performance using different piezoelectric materials. The systems are structured with a Lead Magnesium Niobate-Lead Titanate (PMN-PT) single crystal patch bonded to an aluminum cantilever beam, Lead Indium Niobate-Lead Magnesium Niobate-Lead Titanate (PIN-PMN-PT) single crystal patch bonded to an aluminum cantilever beam and a bimorph cantilever beam which is made of Lead Zirconate Titanate (PZT). The results of this experimental study show the effects of the temperature on the operation frequency and output power of the piezoelectric energy harvesting system. The harvested electrical energy has been stored in storage circuits including a battery. Then, the stored energy has been used to power up the other part of the system, a wireless resonator force sensor, which uses frequency conversion techniques to convert the sensor’s ultrasonic signal to a microwave signal in order to transmit the signal wirelessly.
Date:
December 2013
Creator:
Ahmadi, Mehdi
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Adlerian Play Therapy on Maladaptive Perfectionism and Anxiety and in Children
I used singlecase A-B-A experimental design to examine the effectiveness of Adlerian play therapy (AdPT) for children identified with clinical levels of perfectionism on the Conners Parent Rating Scale-Revised and Conners Teacher Rating Scale-Revised. Participants were 2 children, a 10 year-old Hispanic male and a 7 year-old Caucasian female. To examine the effect of AdPT on maladaptive perfectionism and anxiety, the Child-Adolescent Perfectionism Scale and the Revised Children’s Manifest Anxiety Scale were administered to the children twice weekly over 3 phases of the study: baseline (6 administrations), intervention (12-16 administrations), and maintenance (6 administrations) for a total of 24 to 29 data points. Additionally, parents and teachers completed the Conners Rating Scales-Revised5 times: (1) prior to study, (2) following baseline/prior to treatment, (3) midpoint of treatment, (4) following treatment, and (5) following maintenance phase.During the intervention phase, the male and female participants attended 21 and 16 play therapy sessions, their mothers attended 6 and 5 parent consultations, and their teachers attended 6 and 3 teacher consultations, respectively. Analysis of the child self-report assessments indicated mixed and inconclusive results regarding the effects of AdPT on target behaviors. However, results of the parent and teacher reports indicated clinically significant reductionsin maladaptive perfectionism …
Date:
August 2013
Creator:
Akay, Sinem
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Determination of Molecular Descriptors for Illegal Drugs by Gc-fid Using Abraham Solvation Model
The Abraham solvation parameter model is a good approach for analyzing and predicting biological activities and partitioning coefficients. The general solvation equation has been used to predict the solute property (SP) behavior of drug compounds between biological barriers. Gas chromatography (GC) retention time can be used to predict molecular descriptors, such as E, S, A, B & L for existing and newly developed drug compounds. In this research, six columns of different stationary phases were used to predict the Abraham molecular descriptors more accurately. The six stationary phases used were 5% phenylmethyl polysiloxane, 6% cyanopropylphenyl 94% dimethylpolysiloxane, 5% diphenyl 95% dimethylpolysiloxane, 100% dimethylpolysiloxane, polyethylene glycol and 35% diphenyl 65% dimethylpolysiloxane. Retention times (RT) of 75 compounds have been measured and logarithm of experimental average retention time Ln(RTexp) are calculated. The Abraham solvation model is then applied to predict the process coefficients of these compounds using the literature values of the molecular descriptors (Acree Compilation descriptors). Six correlation equations are built up as a training set for each of the six columns. The six equations are then used to predict the molecular descriptors of the illegal drugs as a test set. This work shows the ability to extract molecular information from …
Date:
December 2013
Creator:
Akhter, Syeda Sabrina
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Evaluating Appropriateness of Emg and Flex Sensors for Classifying Hand Gestures
Hand and arm gestures are a great way of communication when you don't want to be heard, quieter and often more reliable than whispering into a radio mike. In recent years hand gesture identification became a major active area of research due its use in various applications. The objective of my work is to develop an integrated sensor system, which will enable tactical squads and SWAT teams to communicate when there is absence of a Line of Sight or in the presence of any obstacles. The gesture set involved in this work is the standardized hand signals for close range engagement operations used by military and SWAT teams. The gesture sets involved in this work are broadly divided into finger movements and arm movements. The core components of the integrated sensor system are: Surface EMG sensors, Flex sensors and accelerometers. Surface EMG is the electrical activity produced by muscle contractions and measured by sensors directly attached to the skin. Bend Sensors use a piezo resistive material to detect the bend. The sensor output is determined by both the angle between the ends of the sensor as well as the flex radius. Accelerometers sense the dynamic acceleration and inclination in 3 …
Date:
May 2013
Creator:
Akumalla, Sarath Chandra
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of It Process Support, Process Visualization and Process Characteristics on Process Outcomes
Business process re-engineering (part of the Business Process Management domain) is among the top three concerns of Information Technology (IT) leaders and is deemed to be one of many important IT leveraging opportunities. Two major challenges have been identified in relation to BPM and the use of IT. The first challenge is related to involving business process participants in process improvement initiatives using BPM systems. BPM technologies are considered to be primarily targeted for developers and not BPM users, and the need to engage process participants into process improvement initiatives is not addressed, contributing to the business-IT gap. The second challenge is related to potential de-skilling of knowledge workers when knowledge-intensive processes are automated and process knowledge resides in IT, rather than human process participants. The two identified challenges are not separate issues. Process participants need to be knowledgeable about the process in order to actively contribute to BPM initiatives, and the loss of process knowledge as a result of passive use of automated systems may further threaten their participation in process improvement. In response to the call for more research on the individual impacts of business process initiatives, the purpose of this dissertation study is to understand the relationship …
Date:
December 2013
Creator:
Al Beayeyz, Alaa
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
ASIS&T SIG-III's 30th Anniversary Commemorative Publication
Book published for the American Society for Information Science and Technology (ASIS&T) Special Interest Group for International Information Issues (SIG-III). As part of the celebrations for the 75th ASIS&T anniversary and 30th anniversary of SIG-III), this special commemorative publication was created. In this anniversary publication, current and past SIG-III officers attempt to capture some of the SIG-III activities and highlight the challenges as well as the successes that the ASIS&T community has had in the last 30 years.
Date:
2013
Creator:
Alemneh, Daniel Gelaw
Object Type:
Book
System:
The UNT Digital Library
Brown bag on iConference - 2013
This presentation was created for a brown bag luncheon about the 2013 iConference. It includes discussion on participants, the venues, programs, the role of the UNT Libraries, and reflections on the event.
Date:
March 5, 2013
Creator:
Alemneh, Daniel Gelaw
Object Type:
Presentation
System:
The UNT Digital Library
"Mapping the Southwest" Project: Collaboration for Curation of Wide-format Items
This presentation discusses the 'Mapping the Southwest' project and the collaboration for curation of wide-format items.
Date:
April 2013
Creator:
Alemneh, Daniel Gelaw
Object Type:
Presentation
System:
The UNT Digital Library
Digital Curation Tools: Metadata Enhancement with Selenium IDE
Paper accompanying a poster presentation for the 2013 International iConference. This paper describes metadata enhancement with Selenium IDE.
Date:
February 2013
Creator:
Alemneh, Daniel Gelaw & Weidner, Andrew
Object Type:
Paper
System:
The UNT Digital Library
Digital Curation Tools: Metadata Enhancement with Selenium IDE [Poster]
Poster presented at the 2013 International iConference. This poster discusses metadata enhancement with Selenium IDE.
Date:
February 2013
Creator:
Alemneh, Daniel Gelaw & Weidner, Andrew
Object Type:
Poster
System:
The UNT Digital Library
Partnership for Enhancing Developing Countries' Capacity in Participating in Global Knowledge Production and Use
Poster discussing a partnership for enhancing developing countries' capacity in participating in global knowledge production and use. This poster highlights some of the contributing factors that enhance the capacity of African institutions to play active roles in the current global knowledge economy (in terms of information and knowledge creation, access, use and reuse).
Date:
July 2013
Creator:
Alemneh, Daniel Gelaw; Assefa, Shimelis & Rorissa, Abebe
Object Type:
Poster
System:
The UNT Digital Library
Balancing Scholarly Activities, Primary Assignments and Service to the Community
Presentation for the University of North Texas (UNT) Libraries as part of the career development program. This presentation discusses getting started on a research project and balancing scholarly activities, primary assignments, and service to the community.
Date:
November 19, 2013
Creator:
Alemneh, Daniel Gelaw; Avery, Elizabeth Fuseler & Wahl, Diane
Object Type:
Presentation
System:
The UNT Digital Library
Mapping the Southwest Project: Putting the Region's Maps Online
This poster discusses the Mapping the Southwest Project, involving putting our region's maps online. The poster includes background information on the project, the project plan, workflow and equipment, and the impacts and lessons learned.
Date:
May 7, 2013
Creator:
Alemneh, Daniel Gelaw; Jones, Jerrell; Hartman, Cathy Nelson; Phillips, Mark Edward; Hodges, Ann; Huseman, Ben et al.
Object Type:
Poster
System:
The UNT Digital Library
Curating the Southwest Region's Maps: UNT-UTA Collaborative Project
Presentation for the 2013 Cross Timbers Library Collaborative (CTLC) Conference discussing the Mapping the Southwest project. Mapping the Southwest was a 3-year project (2010-2013) funded by a National Endowment for the Humanities (NEH) We the People grant. This presentation discusses the background of the project, the goals and activities, impacts, and lessons learned.
Date:
August 16, 2013
Creator:
Alemneh, Daniel Gelaw; Phillips, Mark Edward & Hartman, Cathy Nelson
Object Type:
Presentation
System:
The UNT Digital Library
The Impact of Open Access in Scholarly Communications: Stakeholders Perspectives
Panel presentation for the 2013 Digital Frontiers Annual Conference. In this presentation, the panelists discuss the impact of open access on scholarly communications with perspectives from five different stakeholders.
Date:
September 19, 2013
Creator:
Alemneh, Daniel Gelaw; Waugh, Laura; Kleister, Jill; Chrisman, Ronald & Helge, Kris
Object Type:
Presentation
System:
The UNT Digital Library
3GPP Long Term Evolution LTE Scheduling
Future generation cellular networks are expected to deliver an omnipresent broadband access network for an endlessly increasing number of subscribers. Long term Evolution (LTE) represents a significant milestone towards wireless networks known as 4G cellular networks. A key feature of LTE is the implementation of enhanced Radio Resource Management (RRM) mechanism to improve the system performance. The structure of LTE networks was simplified by diminishing the number of the nodes of the core network. Also, the design of the radio protocol architecture is quite unique. In order to achieve high data rate in LTE, 3rd Generation Partnership Project (3GPP) has selected Orthogonal Frequency Division Multiplexing (OFDM) as an appropriate scheme in terms of downlinks. However, the proper scheme for an uplink is the Single-Carrier Frequency Domain Multiple Access due to the peak-to-average-power-ratio (PAPR) constraint. LTE packet scheduling plays a primary role as part of RRM to improve the system’s data rate as well as supporting various QoS requirements of mobile services. The major function of the LTE packet scheduler is to assign Physical Resource Blocks (PRBs) to mobile User Equipment (UE). In our work, we formed a proposed packet scheduler algorithm. The proposed scheduler algorithm acts based on the number …
Date:
December 2013
Creator:
Alotaibi, Sultan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Hexagon, Volume 104, Number 1, Spring 2013
Quarterly publication of the Alpha Chi Sigma chemistry fraternity containing articles related to chemistry research and the activities of the organization, including local chapters and groups.
Date:
Spring 2013
Creator:
Alpha Chi Sigma
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Hexagon, Volume 104, Number 2, Summer 2013
Quarterly publication of the Alpha Chi Sigma chemistry fraternity containing articles related to chemistry research and the activities of the organization, including local chapters and groups.
Date:
Summer 2013
Creator:
Alpha Chi Sigma
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Hexagon, Volume 104, Number 3, Fall 2013
Quarterly publication of the Alpha Chi Sigma chemistry fraternity containing articles related to chemistry research and the activities of the organization, including local chapters and groups.
Date:
Autumn 2013
Creator:
Alpha Chi Sigma
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Hexagon, Volume 104, Number 4, Winter 2013
Quarterly publication of the Alpha Chi Sigma chemistry fraternity containing articles related to chemistry research and the activities of the organization, including local chapters and groups.
Date:
Winter 2013
Creator:
Alpha Chi Sigma
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library