UNT Libraries - 18,577 Matching Results

Search Results

Electrochemical Deposition of Nickel Nanocomposites in Acidic Solution for Increased Corrosion Resistance

Description: The optimal conditions for deposition of nickel coating and Ni-layered double hydroxide metal matrix composite coatings onto stainless steel discs in a modified all-sulfate solutions have been examined. Nickel films provide good general corrosion resistance and mechanical properties as a protective layer on many metallic substrates. In recent years, there has been interest in incorporation nano-dimensional ceramic materials, such as montemorillonite, into the metal matrices to improve upon the corrosion and mechanical properties. Layered double hydroxides have been used as corrosion enhancer in polymer coatings by increasing mechanical strength and lowering the corrosion rate but until now, have not been incorporated in a metal matrix by any means. Layered double hydroxides can be easily synthesized in a variety of elemental compositions and sizes but typically require the use of non-polar solvents to delaminate into nanodimensional colloidal suspensions. The synthesis of a Zn-Al LDH has been studied and characterized. The effects of the non-polar solvents dimethylformamide and n-butanol on the deposition and corrosion resistance of nickel coatings from a borate electrolyte bath have been studied, a nickel-LDH nanocomposite coating has been synthesized by electrochemical deposition and the corrosion resistance has been studied. Results indicate an improvement in corrosion resistance for the coatings with minimal change in the nickel matrix's internal strain and crystallite size.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: August 2017
Creator: Daugherty, Ryan E.

An Engagement Bout Analysis of the Effects of Effort

Description: Operant response rate can be viewed as bouts, periods of alternating engagement and disengagement with ongoing schedules of reinforcement. Relatively few studies have examined the role of force and effort on engagement bouts. Moreover, those examining effort have used switch closure devices to define the response. Switch closures tend to overestimate the effect of effort because increasing the force requirement excludes low-force responses that previously activated the switch. In the present study, we examined the effects of effort using a force transducer, which allows us to record criterion responses that meet the force requirement and subcriterion responses that do not. The current study was conducted using four male Sprague Dawley rats. Each rat was run through a series of four conditions, each with a different combination of variable interval schedules (VI 30s, VI 120s) and force requirements (5.6g, 32g). Log survivor analyses of bout structure showed that increased force requirements decreased the rate of bout initiations. Additionally, when log-survivor functions were computed using only criterion responses, shifts in the function were less extreme than when all measured responses were used; the latter finding suggests exclusion of "subcriterion" responses in prior work has overestimated the effects of force on bout structure
Date: August 2017
Creator: Moore, Alyssa Nicole

Evaluating the Role of UV Exposure and Recovery Regimes in PAH Photo-Induced Toxicity

Description: Polyaromatic hydrocarbons (PAHs) are contaminants synthesized through incomplete combustion of carbon based substances. PAHs are known to be photodynamic and toxicity increases exponentially when in contact with ultraviolet radiation (UV). The effect of UV absent recovery periods and potential for latent toxicity during photo-induced toxicity are previously unknown and are not included within the toxicity model. Results of equal interval tests further support the current reciprocity model as a good indicator of PAH photo-induced toxicity. Interval test results also indicate a possible presence of time-dependent toxicity and recovery thresholds and should be included into toxicity risk assessments. Moreover, results of latent effects assays show that latent mortality is a significant response to PAH photo-induced toxicity and should be included into toxicity risk assessments. The present research demonstrates that UV exposure time rate is a significant driving force of PAH photo-induced toxicity.
Date: August 2017
Creator: Gnau, Jennifer Leigh

The Evolution of Brand Co-Creation: Models and Exploration of Stakeholders' Motivations

Description: Co-creation is an emerging phenomenon that occurs when two or more parties work together to create value. Co-creation, which is a key component to service dominant logic, is present in business to business, business to consumer, and consumer to consumer processes. This dissertation will focus on the business to consumer (and consumer to business) co-creation relationship. Much of the current business to consumer co-creation literature is qualitative in nature, with quantitative work just now beginning to emerge. As such, there is still much about the phenomenon of co-creation that is not understood. When looking at co-creation in the context of brand management, even less is known. In today's age of digital interaction where consumers are gaining more power on a daily basis, practitioners and academics should understand the motivations for consumers to engage brands in co-creation and what the outcomes of these co-creation partnerships are. Because of this, the dissertation contains three essays with the purpose of (1) identifying the motivations for co-creation from consumer and brand perspectives, (2) exploring each of these motivators on their individual relationship to the outcome of co-creation, and (3) understanding how the perceived ability to influence a brand impacts the outcomes of co-creation. Essay 1, titled "Co-creation of brand identities: consumer and industry influence and motivations," aims to develop an understanding of the phenomena of co-creation and how the practice is used in shaping brand identities. Two studies are undertaken to provide insight into co-creation. First, a qualitative study is used to gain insight from key decision makers with responsibility for a brand. Second, a study of millennial consumers is used to develop the antecedents of consumer motivations of co-creation of brand identities. This essay then presents a comprehensive framework that encompasses two models (industry and consumer) of brand identity co-creation. Much of the ...
Date: August 2017
Creator: Kennedy, Eric

The Evolution of Learning Technologies within the UNC German Consortium 2000-2016: A Hermeneutic Phenomenlogical Analysis of German Faculty Member Experiences

Description: Beginning in 2000 and continuing today, the University of North Carolina (UNC) German Consortium offers online German courses to undergraduate students across sixteen of the seventeen UNC public universities. The delivery of online classes differs per faculty member and little previous research investigated the UNC German Consortium's learning technologies. This dissertation investigates the evolution of learning technologies within the UNC German Consortium over the last sixteen years among German faculty from different UNC public universities. Seven faculty and one administrator shared their experiences through interviews. The methodology for this research was hermeneutic phenomenology. Interviewees shared their experiences with learning technology and teaching in the UNC German Consortium including how learning technologies changed over time. Interviews were transcribed, coded, and analyzed to deduce themes. Themes included the importance of the North Carolina Research Education Network (NC REN) for teaching German online, an asynchronous versus synchronous debate, how professors taught in synchronous courses, the importance of learning management systems (LMS) systems, the resilient characteristics of UNC German Consortium faculty, and the need for continual learning as an instructor.
Date: August 2017
Creator: Underwood, Zackary Wayne

Evolution of Precipitates and Their Influence on the Mechanical Properties of β-Titanium Alloys

Description: Over the last few decades, body-centered-cubic (bcc) beta (β) titanium alloys have largely been exploited as structural alloys owing to the richness in their microstructural features. These features, which lead to a unique combination of high specific strength and ductility, excellent hardenability, good fatigue performance, and corrosion resistance, make these alloys viable candidates for many applications, including aerospace, automobile, and orthopedic implants. The mechanical properties of these alloys strongly depend on the various phases present; which can be controlled by thermomechanical treatments and/or alloy design. The two most important and studied phases are the metastable ω phase and the stable α phase. The present study focuses on the microstructural evolution and the mechanical behavior of these two phases in a model β-Ti alloy, binary Ti-12wt. %Mo alloy, and a commercial β-Ti alloy, β-21S. Microstructures containing athermal and isothermal ω phases in the binary Ti-12wt. %Mo alloy are obtained under specific accurate temperature controlled heat treatments. The formation and the evolution of the ω-phase based microstructures are investigated in detail via various characterization techniques such as SEM, TEM, and 3D atom probe tomography. The mechanical behavior was investigated via quasi-static tensile loading; at room and elevated temperatures. The effect of β phase stability on the deformation behavior is then discussed. Similar to the Ti-12wt. %Mo, the formation and the evolution of the athermal and isothermal ω phases in the commercial β-21S alloy was studied under controlled heat treatments. The structural and compositional changes were tracked using SEM, TEM, HR-STEM, and 3D atom probe tomography (3D-APT). The presence of additional elements in the commercial alloy were noted to make a considerable difference in the evolution and morphology of the ω phase and also the mechanical behavior of the alloys. The Portevin-Le Chatelier (PLC) like effect was observed in iii this alloy at ...
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: August 2017
Creator: Mantri, Srinivas Aditya

Extended String Techniques and Special Effects in Arnold Schoenberg's String Quartet No. 1 and Its Significance in Chamber Music Literature

Description: Arnold Schoenberg's String Quartet No. 1, Op. 7 stands out as being the first chamber music piece to use a vast number and variety of extended string techniques within one composition. This paper examines a brief history of extended string techniques in chamber music, analyses the unique ways in which Schoenberg applied extended string techniques to manipulate motives in his Op. 7 quartet, and ultimately shows that Schoenberg's use of extended string techniques influenced future composers to employ even more extended techniques and special effects in their own twentieth-century chamber music.
Date: August 2017
Creator: Greenfield, Leah Luke

Fabrication of Photonic Crystal Templates through Holographic Lithography and Study of their Optical and Plasmonic Properties in Aluminium Doped Zinc Oxide

Description: This dissertation focuses on two aspects of integrating near-infrared plasmonics with electronics with the intent of developing the platform for future photonics. The first aspect focuses on fabrication by introducing and developing a simple, single reflective optical element capable of high–throughput, large scale fabrication of micro- and nano-sized structure templates using holographic lithography. This reflective optical element is then utilized to show proof of concept in fabricating three dimensional structures in negative photoresists as well as tuning subwavelength features in two dimensional compound lattices for the fabrication of dimer and trimer antenna templates. The second aspect focuses on the study of aluminum zinc oxide (AZO), which belongs to recently popularized material class of transparent conducting oxides, capable of tunable plasmonic capabilities in the near-IR regime. Holographic lithography is used to pattern an AZO film with a square lattice array that are shown to form standing wave resonances at the interface of the AZO and the substrate. To demonstrate device level integration the final experiment utilizes AZO patterned gratings and measures the variation of diffraction efficiency as a negative bias is applied to change the AZO optical properties. Additionally efforts to understand the behavior of these structures through optical measurements is complemented with finite difference time domain simulations.
Date: August 2017
Creator: George, David Ray

Formation Control of Multi-Agent Systems

Description: Formation control is a classical problem and has been a prime topic of interest among the scientific community in the past few years. Although a vast amount of literature exists in this field, there are still many open questions that require an in-depth understanding and a new perspective. This thesis contributes towards exploring the wide dimensions of formation control and implementing a formation control scheme for a group of multi-agent systems. These systems are autonomous in nature and are represented by double integrated dynamics. It is assumed that the agents are connected in an undirected graph and use a leader-follower architecture to reach formation when the leading agent is given a velocity that is piecewise constant. A MATLAB code is written for the implementation of formation and the consensus-based control laws are verified. Understanding the effects on formation due to a fixed formation geometry is also observed and reported. Also, a link that describes the functional similarity between desired formation geometry and the Laplacian matrix has been observed. The use of Laplacian matrix in stability analysis of the formation is of special interest.
Date: August 2017
Creator: Mukherjee, Srijita

A General Approach to Buhlmann Credibility Theory

Description: Credibility theory is widely used in insurance. It is included in the examination of the Society of Actuaries and in the construction and evaluation of actuarial models. In particular, the Buhlmann credibility model has played a fundamental role in both actuarial theory and practice. It provides a mathematical rigorous procedure for deciding how much credibility should be given to the actual experience rating of an individual risk relative to the manual rating common to a particular class of risks. However, for any selected risk, the Buhlmann model assumes that the outcome random variables in both experience periods and future periods are independent and identically distributed. In addition, the Buhlmann method uses sample mean-based estimators to insure the selected risk, which may be a poor estimator of future costs if only a few observations of past events (costs) are available. We present an extension of the Buhlmann model and propose a general method based on a linear combination of both robust and efficient estimators in a dependence framework. The performance of the proposed procedure is demonstrated by Monte Carlo simulations.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: August 2017
Creator: Yan, Yujie yy

Generating Molecular Biology Tools to Investigate the Ca2+ Binding Ability of Arabidopsis TON2

Description: The position of the cell division plane in plants is determined by the position of the preprophase band. The pre prophase band (PPB) is a ring of microtubules centered around the nucleus on the inner side of plasma membrane that establishes the cortical division site. The PPB forms at the end of G2 and breaks down at the end of prophase leaving behind protein markers of its position that are collectively called the cortical division site. During cytokinesis the phragmoplast expands towards the cortical division site and mediates the fusion of the new cell plate with the mother cell at that position. Several proteins necessary for PPB formation in plants have been identified, including maize DCD1 and ADD1 and Arabidopsis TON2, which are all type 2A protein phosphatase (PP2A)B" regulatory subunits. DCD1, ADD1, and TON2 localize to the PPB and the cortical division site through metaphase. The PP2A subunits each have two EF-hand domains, which are predicted to bind calcium ions. Since calcium ions are important for some aspects of cell division, we designed a series of constructs to test if TON2 binds calcium. TON2 protein was cloned into expression vectors, pET42a, and expression of TON2 protein was confirmed via Western blotting and immunodetection using a GST antibody. Site directed mutagenesis was used to mutate the TON2 EF-hand domains and mutated cDNAs were also cloned into expression vectors. These were then expressed in bacterial systems. Finally, the GST tagged proteins were purified. In the future, wild-type and mutated proteins TON2 proteins will used in calcium binding assays to determine if TON2 binds calcium.
Date: August 2017
Creator: Shao, Danyang

A Guide to Suitable Bass Solo Vocal Repertoire by J. S. Bach for Collegiate Baritone

Description: In the Baroque period, the baritone voice was not yet well-defined, but many composers wrote vocal pieces with a range appropriate for the modern baritone voice. Composers used the general categories of soprano, alto, tenor, and bass for solo voice in their compositions. Johann Sebastian Bach (1685-1750) was no different from other Baroque composers in writing solo works to be performed by one of the four main voice types. The various ranges and tessituras of J. S. Bach's vocal works for bass solo voice are not limited to being sung by low basses, but may also be sung by more medium ranged baritones. The purpose of this research is to guide collegiate voice teachers and their baritone students in selecting appropriate repertoire from the works of Bach on the basis of each students' level of development and to categorize four groups of bass solos by Bach for collegiate baritone students: beginning level for freshmen, intermediate level for sophomores, advanced level for juniors and seniors, and pre-professional level for seniors and graduate students. This research was prepared in conjunction with a DMA lecture-recital of eight bass solos for collegiate baritone voice, selected from the study; two vocal works for each proficiency level.
Date: August 2017
Creator: Chang, Chul Woong

How Attitudes towards Statistics Courses and the Field of Statistics Predicts Statistics Anxiety among Undergraduate Social Science Majors: A Validation of the Statistical Anxiety Scale

Description: The aim of this study was to validate an instrument that can be used by instructors or social scientist who are interested in evaluating statistics anxiety. The psychometric properties of the English version of the Statistical Anxiety Scale (SAS) was examined through a confirmatory factor analysis of scores from a sample of 323 undergraduate social science majors enrolled in colleges and universities in the United States. In previous studies, the psychometric properties of the Spanish and Italian versions of the SAS were validated; however, the English version of the SAS had never been assessed. Inconsistent with previous studies, scores on the English version of the SAS did not produce psychometrically acceptable values of validity. However, the results of this study suggested the potential value of a revised two-factor model SAS to measure statistics anxiety. Additionally, the Attitudes Towards Statistics (ATS) scale was used to examine the convergent and discriminant validities of the two-factor SAS. As expected, the correlation between the two factors of the SAS and the two factors of the ATS uncovered a moderately negative correlation between examination anxiety and attitudes towards the course. Additionally, the results of a structural regression model of attitudes towards statistics as a predictor of statistics anxiety suggested that attitudes towards the course and attitudes towards the field of statistics moderately predicts examination anxiety with attitudes towards the course having the greatest influence. It is recommended that future studies examine the relationship between attitudes towards statistics, statistics anxiety, and other variables such as academic achievement and instructional style.
Date: August 2017
Creator: Obryant, Monique J

How eHealth Literacy Impacts Patient-Provider Relationships: A Study on Trust, Self-Care, and Patient Satisfaction

Description: It has been well established, in the literature, the association between low health literacy rates and poor health outcomes. With the increase of technology dependence, more people are using the internet to look up health information. Research has shown that shared decision making between providers and patients can improve patients' health outcomes. This research aims to examine whether electronic health (eHealth) literacy impacts patient-provider relationships. This research will also examine how geography specifically state residency impacts eHealth literacy rates. Data collected from a national sampling of online health and medical information users who participated in the Study of Health and Medical Information in Cyberspace (N=710) is used to construct structural equation models from SPSS AMOS v. 20.0. After path analysis, the results shown that white males with higher education were more likely to have higher eHealth literacy rates and that eHealth literacy rates are associated with better self-care, higher patient satisfaction and increased trust in provider. Also, state residency does not have an impact on eHealth literacy rates. eHealth literacy will be significant in patient-provider relationships. Program development should be established on focusing on eHealth literacy across the lifespan. Also, it will be important to review federal policy on technology disbursements in order to achieve national goals on eHealth literacy rates.
Date: August 2017
Creator: Cheun, Jacquelyn Joann

How Exposure to Parental Intimate Partner Violence Affects College Students' Dating Violence: A Structural Equation Model with Adult Attachment and Social Information Processing as Mediating Factors

Description: The effects of childhood exposure to parental intimate partner violence (EPIPV) on dating violence (DV) were examined through two layers of mediations. Based on attachment theory, individuals who are exposed to parental intimate partner violence are less likely to experience secure parent-child attachment, which in turn transfers to insecure adult attachment that is prone to perceive significant others as less trustworthy and less reliable as well as higher likelihood of over-reacting and/or staying in an unhealthy relationship. In the second layer of mediation, insecure adult attachment would lead to biased SIP which in turn, would result in an increase of DV. A total of 327 university students participated in the study by voluntarily completing the research questionnaires. Among them, 253 reported having experienced mild to severe DV and were included in the final data set. The data analyses procedures included examinations of the measurement models and structural equation modeling (SEM) analyses. Findings from the final models best supported by the data indicated that EPIPV predicted both dating violence perpetration and victimization and that EPIPV predicted adult attachment anxiety and avoidance, both of which are consistent with existing literature. However, findings revealed that EPIPV did not predict SIP and SIP was not predictive of DV perpetration. In addition, neither adult attachment anxiety nor attachment avoidance was predictive of DV perpetration and victimization. For DV victimization SEM model, adult attachment anxiety predicted SIP, however, SIP did not predict DV victimization. Findings are discussed based on DV literature and attachment theory. Limitations, clinical implications, and future research directions are also outlined.
Date: August 2017
Creator: Chong, Chu Chian

The Impact of Commuting on Mental Health

Description: The purpose of this research is to explicate the relationship between commuting behavior, stress, and mental health. The overall results from the regression analysis turned out to be inconclusive given the researcher's initial hypothesis. The commute time reported by respondents did not have a statistically significant bearing on mental health outcomes. This was true for both the normal sample, and the sample that was split by gender.
Date: August 2017
Creator: Malek-Ahmadi, John H.

The Impact of Observational Learning on Physical Activity Appraisal and Exertion Following Experimental Back Injury and the Role of Pain-Related Fear

Description: Chronic low back pain (CLBP) is one of the most prevalent and disabling health conditions in the US and worldwide. Biomedical explanations of acute injury fail to account for why some individuals experience remission of pain and restoration of physical function while others do not. Pain-related fear, accompanied by elevated appraisals of physical exertion and avoidance of physical activity, has emerged as a central psychosocial risk factor for transition from acute injury to chronic pain and disability. Research has indicated that these pain-related factors may be maintained through observational learning mechanisms. To date, no studies have experimentally examined the role of observational learning and pain-related fear in the context of actual musculoskeletal injury. Accordingly, the present study examined the impact of observational learning and pain-related fear on activity appraisals and exertion following experimentally- induced acute low back injury. Healthy participants' appraisal of standardized movement tasks along with measures of physical exertion were collected prior to and following a procedure designed to induce delayed onset muscle soreness (DOMS) to the lower back. Following induction of DOMS, participants observed a video prime depicting CLBP patients exhibiting either high or low pain behavior during similar standardized movements. In line with hypothesized effects, participants assigned to the high pain behavior prime demonstrated greater elevation in pain and harm appraisals as well as greater decrement in physical exertion. Further in line with hypotheses, significant changes in appraisal and physical performance following the high pain behavior prime were only observed among participants endorsing high pain-related fear during baseline assessment. Discussion of findings addresses potential mechanisms of action as well as study limitations and direction for future research.
Date: August 2017
Creator: Guck, Adam

Increasing Problem Solving in a Special Education Class by Teaching Talk Aloud Problem Solving (TAPS)

Description: Although there is extensive research demonstrating the benefits of teaching problem solving repertoires to typically developing individuals, there is little research on the effectiveness of these kinds of procedures with individuals with special needs. In this study, a group of special education students in a public school were taught problem solving skills using a curriculum called Talk Aloud Problem Solving (TAPS), which was developed by Robbins (2014). TAPS teaches students five problem solving skills and five active listening skills. This study utilized a multiple baseline design to examine whether training in TAPS would change the way that students solve problems and increase their accuracy when solving problems. In addition, a reversal design was used for each participant, consisting of the presence and the removal of the active listener during different stages of the study. After TAPS training and guided practice sessions, all students demonstrated new problem solving repertoires and their accuracy improved. For some students, having an audience (an active listener) was necessary to maintain their behavior. Further research is needed to determine how to teach students to be their own active listener.
Date: August 2017
Creator: Will, Sean

The Influence of Chinese Instruments on the Violin: A Practice Guide of Three Violin Techniques

Description: Contemporary professional violinists face constant exposure to multicultural compositions. For best results, they should be able to understand, capture, and express the subtleties of different styles. The violin and its repertoire spread to China through European missionaries during the late seventeenth century and continued to be developed by Chinese scientists and musicians who studied abroad. During the twentieth and twenty-first centuries, Chinese composers wrote many violin pieces inspired by the unique sounds of Chinese instruments. Additionally, Chinese music scholars wrote numerous essays to discuss the new Chinese style. However, much of this research has been focused on the composers and the structures of the compositions rather than on the details of violin techniques necessary to play the repertoire. The techniques in Chinese violin compositions are unique and are influenced by the traditional instruments including string, wind, and percussion instruments. Furthermore, the style of such compositions is affected by the elements of Chinese culture, such as the language, the elite society and its poetic tradition, and historical legends and events. This dissertation provides examples of Chinese violin repertoire which demonstrate the principles of three main violin techniques in the Chinese style: slides, chords, and pizzicati. In order to help professional violinists better perform Chinese violin compositions, the dissertation also includes a number of exercises covering each technique above.
Date: August 2017
Creator: Gao, Jie

The Influence of Social and Cultural Factors on Alcohol Use and Abuse among a Sample of Young Males in the Army

Description: The purpose of this qualitative study was to understand the social, cultural, and structural factors that contribute to or inhibit alcohol use and abuse in the Army among young males, unmarried or married without a present spouse. Seventeeen single, or separated, young male soldiers stationed at Fort Bragg Army Base were interviewed to provide insight into the research questions. Soldiers were largely located through face-to-face canvassing. The interviews, which lasted from 45 to 90 minutes, took place face-to-face and were then transcribed. Interviews were analyzed using grounded theory approach by locating patterns, themes and relationships to come to generalizations. The themes that emerged from the interviews include: 1) stresses of army work/life; 2) social/entertainment use; 3) tradition/brotherhood/entitlement; 4) fear/consequences; 5) impressionable youth; 6) treatment. While the themes which emerged were reported in discrete terms, there was overlap in them. The functional aspect of alcohol use to these soldiers mixed with the impact of social interaction influencing their use served to encourage and further the use of alcohol. The drinking patterns of young male soldiers can be seen to exist on a continuum of either social integration or social stress, in line with Durkheim's conception of suicide, with the existence of being on either end of these continuums leading to excessive alcohol use. The findings confirm Durkheim's conception of social order in leading to unhealthy responses and indicate the Army needs to address the role and impact of the greater social environment in leading to alcohol misuse among young male soldiers.
Date: August 2017
Creator: Short, John Rollin

Intelligence and the Uprising in East Germany 1953: An Example of Political Intelligence

Description: In 1950, the leader of the German Democratic Republic (East Germany), Walter Ulbricht, began a policy of connecting foreign threats with domestic policy failures as if the two were the same, and as if he was not responsible for either. This absolved him of blame for those failures and allowed Ulbricht to define his internal enemies as agents of the western powers. He used the state's secret police force, known as the Stasi, to provide the information that supported his claims of western obstructionism and to intimidate his adversaries. This resulted in a politicization of intelligence whereby Stasi officers slanted information so that it conformed to Ulbricht's doctrine of western interference. Comparisons made of eyewitness' statements to the morale reports filed by Stasi agents show that there was a difference between how the East German worker felt and the way the Stasi portrayed their attitudes to the politburo. Consequently, prior to June 17, 1953, when labor strikes inspired a million East German citizens to rise up against Ulbricht's oppressive government, the politicization of Stasi intelligence caused information over labor unrest to be unreliable at a time of increasing risk to the regime. This study shows the extent of Ulbricht's politicization of Stasi intelligence and its effect on the June 1953 uprising in the German Democratic Republic.
Date: August 2017
Creator: Collins, Steven Morris

Interacting complex systems: theory and application to real-world situations

Description: The interest in complex systems has increased exponentially during the past years because it was found helpful in addressing many of today's challenges. The study of the brain, biology, earthquakes, markets and social sciences are only a few examples of the fields that have benefited from the investigation of complex systems. Internet, the increased mobility of people and the raising energy demand are among the factors that brought in contact complex systems that were isolated till a few years ago. A theory for the interaction between complex systems is becoming more and more urgent to help mankind in this transition. The present work builds upon the most recent results in this field by solving a theoretical problem that prevented previous work to be applied to important complex systems, like the brain. It also shows preliminary laboratory results of perturbation of in vitro neural networks that were done to test the theory. Finally, it gives a preview of the studies that are being done to create a theory that is even closer to the interaction between real complex systems.
Date: August 2017
Creator: Piccinini, Nicola

Interactive Networks in "Forgotten Lyres": Critical Analysis and Original Composition

Description: Forgotten Lyres is a musical response to Percy Bysshe Shelley's poem Mutability, which depicts the fragility and unpredictable nature of human life. Four independent chamber ensembles make up the performing forces of Forgotten Lyres; the musicians evoke the topics of Shelley's text as they interact and coordinate with one another according to a variety of paradigms and without the use of a conductor. This essay focuses on the approaches to coordination within and between ensembles, and the ways in which the musicians' interactions can evoke and convey Shelley's texts. The essay also examines works by Mel Powell, Toru Takemitsu, Witold Lutoslawski, and Pierre Boulez as examples and precursors for the coordination strategies employed in Forgotten Lyres.
Date: August 2017
Creator: Harenda, Timothy