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  Partner: UNT Libraries
 Decade: 2010-2019
Climate Change Plans and Infrastructure in Asian Cities: a Survey of Plans and Priorities
The objectives of the survey of Asian cities are to determine:the status of climate change and other relevant plans for Asian cities and their focus on climate change adaptation versus mitigation, Where demand for climate change related infrastructure projects exists based on these plans, The role of development agencies and other development partners in prioritizing, planning and investing in urban infrastructure. digital.library.unt.edu/ark:/67531/metadc501490/
Assessing the Costs of Climate Change and Adaptation in South Asia
.This Asian Development Bank (ADB) study examined the economic costs associated with the impacts of climate change and the cost and benefits of adaptation in Bangladesh,Bhutan, India, the Maldives, Nepal, and Sri Lanka. The study aimed to (i) assess the biophysical impacts of climate change in the region, including individual country impacts, and (ii) estimate the total economic loss to the countries in the region by 2100, taking into account the different scenarios and impacts projected across vulnerable sectors, and then to estimate the magnitude of funding for adaptation measures required to avert such potential losses. Results of the study will aid development of future policies and programs for climate change adaptation in the region, including initiatives for regional cooperation and capacity building in climate change management. The study covered the following sectors: agriculture, terrestrial ecosystems, water, marine and coastal resources (except Bhutan and Nepal), health, and energy. digital.library.unt.edu/ark:/67531/metadc501484/
.China's Policies and Actions for Addressing Climate Change (2012)
.The Chinese government attaches great importance to the issue of climate change.It defines the objectives, tasks and policy orientation of China’s response to climate change over the next five years and identifies key tasks, including controlling greenhouse gas emissions, adapting to climate change, and strengthening international cooperation. digital.library.unt.edu/ark:/67531/metadc501479/
Climate Change Mitigation and Green Growth in Developing Asia
Developing Asia is the driver of today’s emissions intensive global economy. As the principal source of future emissions, the region is critical to the task of global climate change mitigation. Reflecting this global reality and a range of related domestic issues, the governments of the People’s Republic of China, India, Indonesia, Thailand, and Viet Nam have embarked upon an ambitious policy agenda. This report reviews the present and future policy settings for climate change mitigation and green growth in Asia’s major emerging economies. Although recent targets and commitments will involve a fundamental change in emissions trajectories, the urgency and extent of necessary global action requires ambition to be raised even further in developing Asia. An additional transformation will be required for the trajectory of emissions and energy demand, as well as the future composition of the power generation mix. Achieving these transformations will not be easy. There are a substantial number of policy instruments available, yet significant obstacles stand in the way of their effective deployment. Governments face a number of policy challenges, including: energy sector reform, economic reform, strengthening institutional capacity, and securing international support. The principal conclusion of this analysis is that the task facing Asia’s policymakers is not simply one of setting targets and pursuing narrowly focused policies to reach them. Rather, a broad–scale approach involving all sections of the economy and government will be required to achieve the shift to a sustainable, low-emissions development trajectory. digital.library.unt.edu/ark:/67531/metadc501467/
The Portal to Texas History, a DPLA Service Hub
Presentation at the University of Texas at Austin. This presentation discusses The Portal to Texas History as a Digital Public Library of America (DPLA). digital.library.unt.edu/ark:/67531/metadc501446/
CLIMATE CHANGE 2014 SYNTHESIS REPORT
This Synthesis Report is based on the reports of the three Working Groups of the Intergovernmental Panel on Climate Change (IPCC), including relevant Special Reports. It provides an integrated view of climate change as the final part of the IPCC’s Fifth Assessment Report (AR5). This summary follows the structure of the longer report, which addresses the following topics: Observed changes and their causes; Future climate change, risks and impacts; Future pathways for adaptation, mitigation and sustainable development; Adaptation and mitigation. digital.library.unt.edu/ark:/67531/metadc501489/
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. digital.library.unt.edu/ark:/67531/metadc501459/
The Hexagon, Volume 105, Number 3, Fall 2014
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. digital.library.unt.edu/ark:/67531/metadc501440/
Climate Change 2014 Mitigation of Climate Change -Summary for Policymakers
The Working Group III contribution to the IPCC’s Fifth Assessment Report (AR5) assesses literature on the scientific, technological, environmental, economic and social aspects of mitigation of climate change. It builds upon the Working Group III contribution to the IPCC’s Fourth Assessment Report (AR4), the Special Report on Renewable Energy Sources and Climate Change Mitigation (SRREN) and previous reports and incorporates subsequent new findings and research. The report also assesses mitigation options at different levels of governance and in different economic sectors, and the societal implications of different mitigation policies, but does not recommend any particular option for mitigation digital.library.unt.edu/ark:/67531/metadc501476/
Japan's Climate Change Policies
Japan in Global GHG emissions, International negotiations, Framework for achieving the Kyoto Target, Mid- and Long-term mitigation actions. digital.library.unt.edu/ark:/67531/metadc501487/
Building an Online Academic Profile
Presentation for the Toulouse Graduate School spring workshop series. This presentation discusses building an online academic profile. digital.library.unt.edu/ark:/67531/metadc501436/
China's Policies and Actions for Addressing Climate Change 2011
.The Chinese government constantly sets great store by the issue of climate change and has included addressing climate change into its mid- and long-term planning for economic and social development as a major issue concerning its overall economic and social development. digital.library.unt.edu/ark:/67531/metadc501477/
The Evolution of Publishing Agreements at the University of Michigan
Article on the evolution of publishing agreements at the University of Michigan Library. Taking as an example an open-access journal with a single editor, this article discusses the various configurations of rights agreements used by the University of Michigan Library throughout the evolution of its publishing operation, the advantages of the various models, and the reasons for moving from one to another. digital.library.unt.edu/ark:/67531/metadc501458/
Scoping assessment of knowledge needs in climate change adaptation in China
The goal of this review is to identify ways to strengthen the links between scientific and technical knowledge with action on climate change adaptation. The study focuses on the impacts of climate change on agriculture and rural development, the two sectors thought to be most vulnerable. It draws on a literature review for context, but employs case study research as its main methodology. digital.library.unt.edu/ark:/67531/metadc501469/
China's Policies and Actions for Addressing Climate Change (2013)
.Chinese government has been accelerating the development of major strategic research and planning and strengthening top-level design, and has taken a series of actions to address climate change,with positive results. China continues to play a positive and constructive role in international climate change negotiations and has pushed for positive outcomes and international dialogues and cooperation at the Doha Climate Change Conference, thereby making a significant contribution to addressing global climate change. digital.library.unt.edu/ark:/67531/metadc501488/
Using Students in Cataloging
Presentation notes presented as part of a panel, "Utilizing Student Employees in the Cataloging Workflow," at the Music OCLC Users Group (MOUG) Annual Convention digital.library.unt.edu/ark:/67531/metadc501438/
The Evolution of Publishing Agreements at the University of Michigan Library
Book chapter on the evolution of publishing agreements at the University of Michigan Library. Taking as an example an open-access journal with a single editor, this chapter discusses the various configurations of rights agreements used by the University of Michigan Library throughout the evolution of its publishing operation, the advantages of the various models, and the reasons for moving from one to another. digital.library.unt.edu/ark:/67531/metadc501437/
Investment and Growth from Climate Action A Briefing by CDP to Support the EU 2030 Climate and Energy Package
CDP has created this briefing confident that it will provide a useful further contribution to these policy debates.The briefing is launched alongside its global report ‘The A List: The CDP Climate Performance Leadership Index 2014’. CDP’s Climate Performance Leadership Index (CPLI) is an index highlighting companies that exhibit leadership through their actions to mitigate climate change. digital.library.unt.edu/ark:/67531/metadc501462/
China and Climate Change: A Strategy for U.S. Engagement
The aim of this report is to provide strategic guidance to U.S. policymakers on engaging China on climate change. In the first section, I set the context by discussing China’s energy use, emissions, and future projections, including potential emissions reductions and trajectories under different policies. In section two, I review China’s recent policies to address climate change and energy conservation. I focus on the status of implementation of its energy-efficiency goals under its 11th Five Year Plan. I also anticipate future developments in Chinese energy and climate policy. Finally, in section three, I propose a strategy for U.S. engagement of China on climate change. digital.library.unt.edu/ark:/67531/metadc501472/
The Status of Research Data Management in the United States
Presentation for the first Open Data Hackathon at UNT, organized as part of International Open Data Day. This presentation discusses the status of research data management in the United States and the challenges, opportunities, and emerging trends. digital.library.unt.edu/ark:/67531/metadc501454/
The Hexagon, Volume 105, Number 2, Summer 2014
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. digital.library.unt.edu/ark:/67531/metadc501452/
Web-Archiving: Collecting and Preserving Important Web-based National Resources
Presentation for the National Archives and Library of Ethiopia on web-archiving and collecting and preserving important web-based national resources. digital.library.unt.edu/ark:/67531/metadc501439/
CLIMATE CHANGE 2014 SYNTHESIS REPORT
This Synthesis Report is based on the reports of the three Working Groups of the Intergovernmental Panel on Climate Change (IPCC), including relevant Special Reports. It provides an integrated view of climate change as the final part of the IPCC’s Fifth Assessment Report (AR5). This summary follows the structure of the longer report, which addresses the following topics: Observed changes and their causes; Future climate change, risks and impacts; Future pathways for adaptation, mitigation and sustainable development; Adaptation and mitigation. digital.library.unt.edu/ark:/67531/metadc501464/
.China’s Climate-Change Policy 1988-2011: From Zero to Hero?
.This report describes the evolution of China’s domestic climate-change policy over the period 1988-2011, using the Advocacy Coalition Framework (ACF) to explore the policy change. Policy development has been gradual, with the most notable change occurring in 2007, when the National Climate Change Programme elevated climate change to a national policy issue.The ACF points to socioeconomic development and the Climate Change Advocacy Coalition’s policy-oriented learning as explanations for the development of climate-change policy in China. digital.library.unt.edu/ark:/67531/metadc501485/
I Learned All That I Know About Digital Preservation From Trading Concert Recordings
Presentation for the Preservation and Archiving Special Interest Group (PASIG) 2015 Meeting. This presentation discusses digital preservation and learning from trading live concert recordings. digital.library.unt.edu/ark:/67531/metadc501447/
Leveraging the UNT Digital Library Infrastructure to Support our Extended Communities
Presentation for the Preservation and Archiving Special Interest Group (PASIG) 2015 Meeting. This presentation discusses leveraging the University of North Texas (UNT) Library infrastructure to support extended communities. digital.library.unt.edu/ark:/67531/metadc501451/
Enhancing Access to E-books
Article on a study of enhancing access to e-books. digital.library.unt.edu/ark:/67531/metadc501455/
Access to Geographical Information in Library Catalogs: a Case Study
Presentation for the Pioneer America Society Annual Conference. This presentation discusses a case study on access to geographical information in library catalogs. digital.library.unt.edu/ark:/67531/metadc501456/
Philipp Jakob Rittler Sonata à 18
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Philipp Jakob Rittler (composer ca. 1637-1690) - Play streams in full ... Sonata a 18, for 6 trumpets, 3 trombones, 2 violins, 3 violas, timpani and continuo ... digital.library.unt.edu/ark:/67531/metadc501433/
Philipp Jakob Rittler Sonata à 17
Access: Use of this item is restricted to the UNT Community.
Philipp Jakob Rittler (composer ca. 1637-1690) - Play streams in full ... Sonata a 17, for 6 trumpets, 3 trombones, 2 violins, 3 violas, timpani and continuo ... digital.library.unt.edu/ark:/67531/metadc501435/
Literature Review: Assessment of Cataloging Services in an Academic Library
Paper discussing a literature review on the assessment of cataloging services in an academic library. This paper is part of a Cataloging Survey Project at the University of North Texas (UNT) Libraries. digital.library.unt.edu/ark:/67531/metadc501406/
The Hexagon, Volume 105, Number 3, Fall 2014
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. digital.library.unt.edu/ark:/67531/metadc501390/
Critical Discussion of Pleroma: A Digital Drama and Its Relevance to Tragic Form in Music
Pleroma is a digital drama: a work composed of digital animation combined with electroacoustic music, presenting an original dramatic narrative. Pleroma's dramatic elements evoke both the classical form of tragedy and the concept of perceptual paradox. A structural overview of the drama and its characters and a plot synopsis are given to provide context for the critical discussion. Analytical descriptions of Beethoven's Coriolan Overture Op.62 and Mahler's Symphony No. 9 are provided to give background on tragic form and Platonic allegory in music. An investigation into the elements discussed in the analysis of the instrumental works reveals several layers of possible interpretation in Pleroma. Dramatic elements allow for tragic narratives to be constructed, but they are complemented by character associations formed by pitch relationships, stylistic juxtapositions, and instrumentation. A copy of the dramatic text is included to supplement the multimedia production: http://digital.library.unt.edu/ark:/67531/metadc33228/ digital.library.unt.edu/ark:/67531/metadc500424/
Geek As a Constructed Identity and a Crucial Component of Stem Persistence
The fields of science, technology, engineering and mathematics (STEM) have long been the bastions of the white male elite. Recently, academia has begun to recognize gender and ethnic disparities. In an effort to expand the recruitment pool for these STEM fields in college, various efforts have been employed nationally at the secondary level. In California, the latest of these efforts is referred to as Linked Learning, a pedagogy that combines college preparation with career preparation. The current study is investigating the connection between what has been referred to in current scholarship as "Geeking Out" with higher academic performance. The phenomenon of “Geeking Out” includes a variety of non-school related activities that range from participating in robotics competitions to a simple game of Dungeons & Dragons. The current project investigates the relationship between long term success in STEM fields and current informal behaviors of secondary students. This particular circumstance where Linked Learning happens to combine with "Geeking Out" is successful due to the associated inclusionary environment. Methods included a yearlong ethnographic study of the Center for Advanced Research and Technology, a Central Valley school with a diverse student body. Through participant observation and interviews, the main goal of this research is to examine the circumstances that influence the effectiveness found in the environment of the Center for Advanced Research and Technology. digital.library.unt.edu/ark:/67531/metadc500004/
Multilingual Word Sense Disambiguation Using Wikipedia
Ambiguity is inherent to human language. In particular, word sense ambiguity is prevalent in all natural languages, with a large number of the words in any given language carrying more than one meaning. Word sense disambiguation is the task of automatically assigning the most appropriate meaning to a polysemous word within a given context. Generally the problem of resolving ambiguity in literature has revolved around the famous quote “you shall know the meaning of the word by the company it keeps.” In this thesis, we investigate the role of context for resolving ambiguity through three different approaches. Instead of using a predefined monolingual sense inventory such as WordNet, we use a language-independent framework where the word senses and sense-tagged data are derived automatically from Wikipedia. Using Wikipedia as a source of sense-annotations provides the much needed solution for knowledge acquisition bottleneck. In order to evaluate the viability of Wikipedia based sense-annotations, we cast the task of disambiguating polysemous nouns as a monolingual classification task and experimented on lexical samples from four different languages (viz. English, German, Italian and Spanish). The experiments confirm that the Wikipedia based sense annotations are reliable and can be used to construct accurate monolingual sense classifiers. It is a long belief that exploiting multiple languages helps in building accurate word sense disambiguation systems. Subsequently, we developed two approaches that recast the task of disambiguating polysemous nouns as a multilingual classification task. The first approach for multilingual word sense disambiguation attempts to effectively use a machine translation system to leverage two relevant multilingual aspects of the semantics of text. First, the various senses of a target word may be translated into different words, which constitute unique, yet highly salient signal that effectively expand the target word’s feature space. Second, the translated context words themselves embed co-occurrence information that a translation engine gathers from very large parallel corpora. The second approach for multlingual word sense disambiguation attempts to reduce the reliance on the machine translation system during training by using the multilingual knowledge available in Wikipedia through its interlingual links. Finally, the experiments on a lexical sample from four different languages confirm that the multilingual systems perform better than the monolingual system and significantly improve the disambiguation accuracy. digital.library.unt.edu/ark:/67531/metadc500036/
The Impact of Professional Development on Student Achievement As Measured by Math and Science Curriculum-based Assessments
The purpose of this study was to explore the impact of teacher professional development on student achievement measured by scores on curriculum-based assessments, CBAs. The participants in the study included 260 3rd, 4th, and 5th grade math and science teachers. Teacher participation in professional development courses was collected for curriculum, instruction, differentiation, assessment, technology integration, and continuous improvement credit types. Achievement data for 8,454 students was used: 2,883 in 3rd grade, 2,752 in 4th grade, and 2,819 in 5th grade. The dependent variable of student achievement was dichotomized at the median: half of the student participants scored above the median and half of the students scored at and below the median. A series of logistic regression models were fit to the data that included examining all main effects and interaction terms among all variables to determine the best fitting model. The results of this study indicate that for 4th grade science, teacher professional development participation in curriculum, instruction, and differentiation credit strands increased the chances for students to score above the district median on CBAs. The larger number of professional development hours in a variety of credit strands had a negative impact on student achievement in 4th grade science. In 5th grade science, the students whose teacher spent more hours in professional learning for continuous improvement had an increased likelihood of scoring above the district median on CBAs. digital.library.unt.edu/ark:/67531/metadc500022/
Sustainable Energy Solutions for Water Purification Applications: Municipal and Industrial Case Studies
In several areas around the world, clean water is a precious asset that at anytime, and mainly due to circumstances of weather and climate, can become scarce. Mainly in the dry and remote places, people suffer with lack of water. A solution for this suffering can be a water desalination system, which makes water potable and usable for industry. That solution inherently, brings the problem of power requirement, which is sometimes arduous to accomplish in such remote areas of difficult access and long distances to overcome to build the infrastructure required to operate an electric power plant. Texas and the USA also face this scenario for many regions, for which the government has been creating some programs and driving forward incentives, looking for solutions to support water desalination. Water desalination has future applications for municipalities water-consuming or for arid and remote regions, as well as for industries that rely on heavy water usage, such as natural gas drilling operations, for which millions of gallons are trucked overland to the site and also hauled away afterwards, when the waste water produced must be treated. This thesis created the concept of autonomy for water desalination plants replacing the actual power supply from fossil fuel to a renewable source from wind or sun, giving capacity to them to produce its own electricity to operate as an autonomous unit, as demonstrated in the business case done for the Brownsville water desalination facility. digital.library.unt.edu/ark:/67531/metadc500086/
Preschool Teachers’ Constructions of Early Reading
Much of the current discourse surrounding the practice of early reading has emerged from policies that dictate the definition and means by which reading is taught and by which reading success is measured. Although this discourse directly influences the work of preschool teachers, little is known about what preschool teachers think about early reading and how they develop these understandings or constructions. Research concerning preschool teachers’ constructions is useful because of the potential influence on teachers' decisions and classroom behaviors. The purpose of this study is to better understand preschool teachers’ constructions concerning early reading and the process of learning to read. Six preschool teachers, with a variety of personal, educational, and professional experiences, from four diverse early childhood programs in the North Texas area were interviewed over a nine-month period during which each participant was interviewed for approximately three hours. Through systematic, inductive analysis, three themes were identified under an overarching theme of the interdependent and relational nature of early reading influences: out-of-school interactions, in-school interactions, and interactions with text. Without exception, these teachers referred to their life experiences as influencing their approach to teaching in general and to teaching reading in particular. The goals these preschool teachers had for their students and their instructional decisions were indications of their unique and evolving constructions of early reading and are absolutely grounded in their practice – in their life experiences and in their daily interactions with children. This study suggests that stakeholders should remember that these practical experiences are a primary influence on how preschool teachers think about early reading and the process of learning to read. digital.library.unt.edu/ark:/67531/metadc500020/
Academic Advising Professional Characteristics and Standards: Do Academic Advisors Follow Recognized Professional Standards in Their Work?
There were two main purposes of this quantitative study. The first purpose was to identify characteristics associated with the selected sample of academic advisors that comprise study. Secondly, the study sought to determine how well work related activities of a selected population of academic advisors correlate with professional characteristics constructs and professional standards constructs of academic advising as a profession. The study used Habley’s (1986) characteristics of a profession to derive the studies professional characteristic construct, education activities, research activities, and professional development activities as it relates to a selected group of academic advisors work related activities. The studies professional standards construct was derived from five Council for the Advancement of Standards (CAS) professional standards for academic as it relates to a selected group of academic advisors work related activities. The study of 78 out of 210 identified full-time academic advisors at two-and four-year public colleges and universities in the North Texas Region utilized a multidimensional researcher-developed Web survey instrument designed to measure professional standards and characteristic within the field of academic advising. Study results reinforced current criticism of research and education activities within the field of academic advising showing that the lack of scholarly research and education activities among academic advisors decreases significantly their efforts towards professionalization. Also, professional standards construct results suggest that the utilization of CAS standards for academic advising as an evaluation tool may enhance an academic advisor’s knowledge of professional standards within the field. digital.library.unt.edu/ark:/67531/metadc500023/
Gender, Peace and Democracy
In the last several decades there has been immense international emphasis and promotion of gender equality and female participation in the social, economic, and political spheres of society. There has also been an increase in civil conflict recurrence in countries as well as countries transitioning to democracy. This study explores the effect of female participation on peace and democracy. In the first part, I focus on the effect female participation has on decreasing the risk of peace failing in post-civil conflict countries. In many countries, women are marginalized and conflict further marginalizes them. However, I argue that the post-conflict environment allows women to escape this cycle of marginalization and their inclusion and participation is very crucial to sustaining peace. I find that female political and social female decreases the risk of peace failing in post-civil war countries. In the second part, I focus on the effect female participation has on decreasing the risk of authoritarian reversals in countries that have transitioned to and toward democracy. Previous empirical research has focused on women’s role in transitions to democracy, factors that contribute to the survival of democracy, as well as how women’s participation affects the stability country. I argue that women’s social, economic, and political participation decreases the risk of authoritarian reversals in countries that have newly transitioned to and toward democracy. I find that female social participation sustains democracy in countries that have transitioned to democracy and that female economic participation sustains democracy in countries that have transitioned toward democracy. Overall I find support that female participation matters for both peace and democracy. digital.library.unt.edu/ark:/67531/metadc500006/
Is Mindfulness Just Another Ego Depletion Exercise?
Given increasing interest in the therapeutic benefits of mindfulness, limitations of its treatment utility are frequently questioned. As such, the purpose of the study was to examine the effects of mindfulness on a subsequent self-control task in a sample of college students. A total of 67 participants were randomly assigned to one of three conditions: a control condition, an experimental mindfulness-only condition or a comparison expectancy-plus-mindfulness condition to investigate the utility of mindfulness practice when motivated by an outcome of increased self-control. Results did not indicate a difference in persistence on a difficult task between conditions, regardless of the manipulation. Conceptual and experimental limitations of current study’s findings, as well as future directions, are discussed. digital.library.unt.edu/ark:/67531/metadc499980/
Defining the Contralto Voice Through the Repertoire of Ralph Vaughan Williams
At the beginning of the twentieth century, the recognition of the contralto voice type had reached its apex in England. Throughout the remainder of the century, the number and popularity of recorded contraltos has decreased alongside the rise of the mezzo-soprano voice type. Due to the contralto’s decline and the lack of repertoire composed specifically for the voice, the definition of “contralto” remains somewhat ambiguous. The large contralto repertoire of English composer Ralph Vaughan Williams displays a unique sensitivity to the contralto, particularly with regards to vocal range, flexibility, tessitura, and sustainability. These works thus suggest a new perspective for the voice type. The scope of Vaughan Williams’s oeuvre examined includes each of his operatic roles for contralto and choral works featuring the contralto. Also examined will be the compositional techniques implemented within these pieces which demonstrate the strengths and weaknesses of the contralto voice. A workable definition of the voice type for the pedagogue and performer is included. digital.library.unt.edu/ark:/67531/metadc499999/
Recidivism Among Determinately Sentenced Youth in Texas
In Texas, determinate sentencing allows extremely serious and violent delinquents one more chance to change their ways by releasing them to the streets instead of being transferred to prison. This research study examined the recidivism outcomes of 416 serious and violent juvenile offenders previously exposed to rehabilitative treatment in the renowned Capital and Serious Violent Offender Treatment Program provided by the Texas Youth Commission. Further, this research study looked to a group of 1,261 determinately sentenced offenders who did not participate in Capital and Serious Violent Offender Treatment Program but were released from Texas Youth Commission as well. Both groups of juveniles were followed for three years following their release from institutionalization. This analysis revealed that 50% of both groups were rearrested at least once during the follow-up period for any offense. Of the Capital and Serious Violent Offender Program participants, 81% were rearrested for at least one new felony offense. Of those non-participants, 78% were rearrested for at least one new felony offense. The factors that served to distinguish both groups included African-American race and a number of delinquent history measures. This study concludes with a discussion of policy implications and suggestions for future research. digital.library.unt.edu/ark:/67531/metadc499985/
Effect of Dispersed Particles and Branching on the Performance of a Medium Temperature Thermal Energy Storage System
The main objective of my thesis is to develop a numerical model for small-scale thermal energy storage system and to see the effect of dispersing nano-particles and using fractal-like branching heat exchanger in phase change material for our proposed thermal energy storage system. The associated research problems investigated for phase change material (PCM) are the low thermal conductivity and low rate of heat transfer from heat transfer fluid to PCM in thermal energy storage system. In this study an intensive study is carried out to find the best material for thermal storage and later on as a high conductive nano-particle graphite is used to enhance the effective thermal conductivity of the mixed materials. As a thermal storage material molten solar Salt (60% NaNO3+40%KNO3) has been selected, after that detailed numerical modeling of the proposed design has been done using MATLAB algorithm and following the fixed grid enthalpy method. The model is based on the numerical computation of 1-D finite difference method using explicit scheme. The second part of the study is based on enhancing the heat transfer performance by introducing the concept of fractal network or branching heat exchanger. Results from the numerical computation have been utilized for the comparison between a conventional heating system (with a simple single tube as a heat exchanger) and a passive PCM thermal energy storage system with branching heat exchanger using NTU-effectiveness method and charging time calculation. The comparison results show a significant amount improvement using branching network and mixing nano-particle in terms of heat transfer (13.5% increase in effectiveness of branching level-02 heat exchangers from the conventional one ), thermal conductivity (increased 73.6% with 20% graphite nano-particle mix with solid PCM), charging time (57% decrease of charging time for the effect of both the dispersion of Graphite nano-particle and branching heat exchange) and pressure drop (36% decrease in level-02 branching). The results of this study prove that the proposed medium temperature TES system coupled with solar ORC can be the stepping-stone for energy efficient and sustainable future in small-scale/building level as the system proves to be better in terms of enhanced heat transfer, increased thermal conductivity and reduced pumping power and overall sustainability. digital.library.unt.edu/ark:/67531/metadc499995/
The Contribution of Mira Behn and Sarala Behn to Social and Environmental Transformation in the Indian State of Uttarakhand
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The influence of Mohandas K. Gandhi on social and environmental movements in post-colonial India has been widely acknowledged. Yet, the contributions of two European associates of Gandhi, Madeleine Slade and Catherine Mary Heilemann, better known in India as Mira Behn and Sarala Behn, have not received the due attention of the academic community. This dissertation is an examination of the philosophy and social activism of Mira Behn and Sarala Behn and their roles in the evolution of Gandhian philosophy of socioeconomic reconstruction and environmental conservation in the present Indian state of Uttarakhand. Instead of just being acolytes of Gandhi, I argue that these women developed ideas and practices that drew upon from an extensive intellectual terrain that cannot be limited to Gandhi’s work. I delineate the directions in which Gandhian thought and experiments in rural development work evolved through the lives, activism, and written contributions of these two women. Particularly, I examine their influence on social and environmental movements, such as the Chipko and the Anti-Tehri Dam movements, and their roles in promoting grassroots social development and environmental sustainability in the mountain communities of Uttarakhand. Mira Behn and Sarala Behn’s integrative philosophical worldviews present epistemological, sociopolitical, ethical, and metaphysical principles and practices that have local and global significance for understanding interfaith dialog, social justice, and environmental sustainability and thus constitute a useful contribution to the theory and practice of human emancipation in our times. digital.library.unt.edu/ark:/67531/metadc499983/
The Impact of Teacher Perception of Cultural Competence on the Instructional Decision Making of English As Second Language (Esl) Students
Recent research suggests that culturally responsive teaching (CRT) practices have the potential to increase student educational outcomes, as well as to reduce unnecessary or inappropriate placement referrals. Examination of the core components in CRT, teacher efficacy and cultural competence, is proposed to be a critical step to reduce unwarranted referrals of culturally and linguistically diverse students. However, there is limited empirical support for the relationship between CRT and instructional referrals, and even among existing studies there is inconsistency regarding the relation of these constructs. The purpose of this study is to examine teacher factors (i.e., teacher role, degree earned, years of teaching, ESL certification held, language proficiency and ethnicity) as a predictor of teacher competence, and the role these factors play in teachers’ referral decision making. To investigate these relationships, a national sample of elementary teachers (N = 258) completed a survey addressing their background, profession endorsements, sense of teaching efficiency, and the instructional decisions they would make in the scenarios presented. The results of this study revealed that teacher role (i.e., general, ESL or special educator) and ESL certification were important predictors of teacher competency. A statistically significant mean difference in teacher competency was found between teachers with and without ESL certification, indicating ESL certification as an important factor in deciding the level of teacher competency. Finally, teacher competency was found to improve teachers’ instructional decision making in scenarios in which the students displayed linguistic difficulties. The findings provide valuable insights to teacher training programs and other professional development entities regarding how to prepare educators to work more efficiently with ESL students. digital.library.unt.edu/ark:/67531/metadc499978/
From Development of Semi-empirical Atomistic Potentials to Applications of Correlation Consistent Basis Sets
The development of the semi-empirical atomistic potential called the embedded atom method (EAM) has allowed for the efficient modeling of solid-state environments, at a lower computational cost than afforded by density functional theory (DFT). This offers the capability of EAM to model the energetics of solid-state phases of varying coordination, including defects, such as vacancies and self-interstitials. This dissertation highlights the development and application of two EAMs: a Ti potential constructed with the multi-state modified embedded atom method (MS-MEAM), and a Ni potential constructed with the fragment Hamiltonian (FH) method. Both potentials exhibit flexibility in the description of different solid-states phases and applications. This dissertation also outlines two applications of DFT. First, a study of structure and stability for solid-state forms of NixCy (in which x and y are integers) is investigated using plane-wave DFT. A ground state phase for Ni2C is elucidated and compared to known and hypothesized forms of NixCy. Also, a set of correlation consistent basis sets, previously constructed using the B3LYP and BLYP density functionals, are studied. They are compared to the well-known to the correlation consistent basis sets that were constructed with higher-level ab initio methodologies through computations of enthalpies of formation and combustion enthalpies. The computational accuracy with regard to experiment is reported. digital.library.unt.edu/ark:/67531/metadc500219/
Development of Enabling Technologies to Visualize the Plant Lipidome
Improvements in mass spectrometry (MS)-based strategies for characterizing the plant lipidome through quantitative and qualitative approaches such as shotgun lipidomics have substantially enhanced our understanding of the structural diversity and functional complexity of plant lipids. However, most of these approaches require chemical extractions that result in the loss of the original spatial context and cellular compartmentation for these compounds. To address this current limitation, several technologies were developed to visualize lipids in situ with detailed chemical information. A subcellular visualization approach, direct organelle MS, was developed for directly sampling and analyzing the triacylglycerol contents within purified lipid droplets (LDs) at the level of a single LD. Sampling of single LDs demonstrated seed lipid droplet-to-droplet variability in triacylglycerol (TAG) composition suggesting that there may be substantial variation in the intracellular packaging process for neutral lipids in plant tissues. A cellular and tissue visualization approach, MS imaging, was implemented and enhanced for visualizing the lipid distributions in oilseeds. In mature cotton seed embryos distributions of storage lipids (TAGs) and their phosphatidylcholine (PCs) precursors were distribution heterogeneous between the cotyledons and embryonic axis raising new questions about extent and regulation of oilseed heterogeneity. Extension of this methodology provides an avenue for understanding metabolism in cellular (perhaps even subcellular) context with substantial metabolic engineering implications. To visualize metabolite distributions, a free and customizable application, Metabolite Imager, was developed providing several tools for spatially-based chemical data analysis. These tools collectively enable new forms of visualizing the plant lipidome and should prove valuable toward addressing additional unanswered biological questions. digital.library.unt.edu/ark:/67531/metadc499986/
Leadership Styles and Cultural Sensitivity of Department Chairs at Texas Public Universities
As the U.S. population diversifies, so do its higher education institutions. Leadership at these institutions should be prepared for this diversification of students, faculty, and staff. The purpose of this study was to gain greater knowledge about the leadership styles and cultural sensitivity of department chairs. Survey research was used to determine if department chairs’ leadership styles correlated with their cultural sensitivity. The target population was department chairs from public universities in the state of Texas. The survey was distributed to 406 randomly selected department chairs. The participants completed three measures: Leadership Behavior Description Questionnaire (LDBQ) for leadership style, the Intercultural Sensitivity Scale (ISS) for cultural sensitivity, and a demographic questionnaire (gender, age range, race/ethnicity, and years of service as department chair). The sample included 165 usable surveys (40% return rate). The department chairs were primarily male (72%), White (78%), and over 50 (71%) years of age. First, a statistically significant negative correlation (r = -.431, p < .0001) occurred between LBDQ overall scores and overall ISS scores: As chairs scored higher on leadership ability, they scored lower on intercultural sensitivity. Second, leadership style by demographic variable displayed mixed results. No significant difference was found for leadership style by age, gender, years of service, or region of service. For ethnicity, White participants scored significantly lower than Minority participants on the LBDQ scales of consideration (t [162] = -2.021, p = .045), structure (t [162] = -2.705, p = .008), and overall (t [162] = -2.864, p = .005). Minority participants might work more diligently to increase their leadership abilities based on their higher LDBQ scores. Third, findings on intercultural sensitivity by demographic variable were mixed. No statistical significance was observed between any of the ISS scales and age, gender, years of service, and region. For ethnicity, Minority participants’ scores showed significantly lower intercultural sensitivity than White participants scores on two of six ISS subscales: interaction enjoyment (t = -2.46, p = .015) and respect (t = 2.107, p = .037). It was concluded that the Minority and White department chairs’ leadership style and intercultural sensitivity differences could be due in part to differences in the chairs’ ethnic affiliations, associated cultural backgrounds, and views of dominant versus non-dominant cultures. Recommendations for study are included. digital.library.unt.edu/ark:/67531/metadc499977/
Development of a Cost Effective Wireless Sensor System for Indoor Air Quality Monitoring Applications
Poor air quality can greatly affect the public health. Research studies indicate that indoor air can be more polluted than the outdoor air. An indoor air quality monitoring system will help to create an awareness of the quality of air inside which will eventually help in improving it. The objective of this research is to develop a low cost wireless sensor system for indoor air quality monitoring. The major cost reduction of the system is achieved by using low priced sensors. Interface circuits had to be designed to make these sensors more accurate. The system is capable of measuring carbon dioxide, carbon monoxide, ozone, temperature, humidity and volatile organic compounds. The prototype sensor node modules were developed. The sensor nodes were the connected together by Zigbee network. The nodes were developed in such a way that it is compact in size and wireless connection of sensor nodes enable to collect air quality data from multiple locations simultaneously. The collected data was stored in a computer. We employed linear least-square approach for the calibration of each sensor to derive a conversion formula for converting the sensor readings to engineering units. The system was tested with different pollutants and data collected was compared with a professional grade monitoring system for analyzing its performance. The results indicated that the data from our system matched quite well with the professional grade monitoring system. digital.library.unt.edu/ark:/67531/metadc499988/
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