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Endogenous Levels of Indole-3-Acetic Acid in Synchronously Grown Chlorella Pyrenoidosa

Endogenous Levels of Indole-3-Acetic Acid in Synchronously Grown Chlorella Pyrenoidosa

Date: August 1971
Creator: Grotbeck, Laurence Merritt
Description: The purpose of this study was to determine the endogenous levels of indole-3-acetic acid throughout the life cycle of Chlorella pyrenoidosa, and to show a correlation between onset of cell division and IAA levels.
Contributing Partner: UNT Libraries
Endogenous Nucleotide Pools in Growing Cells of Azotobacter Vinelandii

Endogenous Nucleotide Pools in Growing Cells of Azotobacter Vinelandii

Date: August 1987
Creator: Lee, Yick-Shun
Description: The objective of this investigation was to examine the changes in the nucleotide pools of Azotobacter vinelandii during the growth cycle. Endogenous ribonucleotides were extracted from A. vinelandii using trichloroacetic acid (TCA; 12% w/v). The 5' mono-, di- and triphosphates of adenine, guanine, uracil and cytosine were separated and quantified by anion-exchange high performance liquid chromatography. Results indicated that the adenylate energy charge of A. vinelandii paralleled the growth rate during exponential phase and that it declined rapidly as the stationary phase was reached. In addition, the amount of each nucleotide in A. vinelandii tended to increase in the logarithmic phase and decrease in the stationary phase in a similar manner to the energy charge.
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Enemies of History: Murderers of the Past

Enemies of History: Murderers of the Past

Date: April 16, 2008
Creator: Downey, Annie; May, Frances A.; Mears, Michelle M. & Smith, Jon
Description: This presentation is about a workshop for high school students. The workshop focused on preservation and how it relates to the study of history.
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The Enemy of My Enemy: International Alliances Against Transnational Terrorist Organizations

The Enemy of My Enemy: International Alliances Against Transnational Terrorist Organizations

Date: December 2010
Creator: Berthume, Joshua Guy
Description: A dearth of pre-existing research in the field prompted this thesis on whether traditional econometric analyses of war deterrent alliances are applicable to modern alliances for counter terror purposes. Apparent foundational and contextual differences between the two types of alliances and the costs and benefits member nations derive from each lead the author to theorize that factors contributing to the formation of each alliance are fundamentally similar. Multiple types of statistical models are used to measure variables from the Correlates of War and Polity datasets combined with custom variables in a new dataset concerning major transnational terrorist attacks and the resultant alliances in testing the effect of traditionally contributing formation factors on alliances against terrorism. The results indicate that some contributing factors are similar, extant analysis tools have utility and that further investigation is justified.
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The Enemy of My Enemy Is What, Exactly? the British Flanders Expedition of 1793 and Coalition Diplomacy

The Enemy of My Enemy Is What, Exactly? the British Flanders Expedition of 1793 and Coalition Diplomacy

Access: Use of this item is restricted to the UNT Community.
Date: August 2012
Creator: Jarrett, Nathaniel W.
Description: The British entered the War of the First Coalition against Revolutionary France in 1793 diplomatically isolated and militarily unprepared for a major war. Nonetheless, a French attack on the Dutch Republic in February 1793 forced the British to dispatch a small expeditionary force to defend their ally. Throughout the Flanders campaign of 1793, the British expeditionary force served London as a tool to end British isolation and enlist Austrian commitment to securing British war objectives. The 1793 Flanders campaign and the Allied war effort in general have received little attention from historians, and they generally receive dismissive condemnation in general histories of the French Revolutionary Wars. This thesis examines the British participation in the 1793 Flanders campaign a broader diplomatic context through the published correspondence of relevant Allied military and political leaders. Traditional accounts of this campaign present a narrative of defeat and condemn the Allies for their failure to achieve in 1793 the accomplishments of the sixth coalition twenty years later. Such a perspective obscures a clear understanding of the reasons for Allied actions. This thesis seeks to correct this distortion by critically analyzing the relationship between British diplomacy within the Coalition and operations in Flanders. Unable to achieve ...
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Energy and Archetype: A Jungian Analysis of The Four Zoas by William Blake

Energy and Archetype: A Jungian Analysis of The Four Zoas by William Blake

Date: August 1974
Creator: Hamilton, Lee T.
Description: The purpose of this study is to examine the parallels between the tenets of Carl Jung's psychology and the mythopoeic structure of Blake's poem, The Four Zoas. The investigation is divided into three chapters. The first deals with the major conceptual parallels between the intellectual systems of the two men. The second is a detailed analysis of the poem, and the third concludes the study by discussing the originality of Blake's thought. Blake anticipated much of Jung's psychology. The parallels between the two are so strong that each man seems to corroborate and validate the opinions and insights of the other. The extent to which he foreshadows Jung reveals Blake to be one of the most original thinkers of any period of time.
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Energy-Aware Time Synchronization in Wireless Sensor Networks

Energy-Aware Time Synchronization in Wireless Sensor Networks

Date: December 2006
Creator: Saravanos, Yanos
Description: I present a time synchronization algorithm for wireless sensor networks that aims to conserve sensor battery power. The proposed method creates a hierarchical tree by flooding the sensor network from a designated source point. It then uses a hybrid algorithm derived from the timing-sync protocol for sensor networks (TSPN) and the reference broadcast synchronization method (RBS) to periodically synchronize sensor clocks by minimizing energy consumption. In multi-hop ad-hoc networks, a depleted sensor will drop information from all other sensors that route data through it, decreasing the physical area being monitored by the network. The proposed method uses several techniques and thresholds to maintain network connectivity. A new root sensor is chosen when the current one's battery power decreases to a designated value. I implement this new synchronization technique using Matlab and show that it can provide significant power savings over both TPSN and RBS.
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Energy Distribution of Sputtered Neutral Atoms from a Multilayer Target

Energy Distribution of Sputtered Neutral Atoms from a Multilayer Target

Date: August 2000
Creator: Bigelow, Alan W.
Description: Energy distribution measurements of sputtered neutral particles contribute to the general knowledge of sputtering, a common technique for surface analysis. In this work emphasis was placed on the measurement of energy distribution of sputtered neutral atoms from different depths. The liquid Ga-In eutectic alloy as a sample target for this study was ideal due to an extreme concentration ratio gradient between the top two monolayers. In pursuing this study, the method of sputter-initiated resonance ionization spectroscopy (SIRIS) was utilized. SIRIS employs a pulsed ion beam to initiate sputtering and tunable dye lasers for resonance ionization. Observation of the energy distribution was achieved with a position-sensitive detector. The principle behind the detector's energy resolution is time of flight (TOF) spectroscopy. For this specific detector, programmed time intervals between the sputtering pulse at the target and the ionizing laser pulse provided information leading to the energy distribution of the secondary neutral particles. This experiment contributes data for energy distributions of sputtered neutral particles to the experimental database, required by theoretical models and computer simulations for the sputtering phenomenon.
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Energy Efficiency Standards and Targets

Energy Efficiency Standards and Targets

Date: 2010
Creator: Pew Center on Global Climate Change
Description: This map shows states with policies to promote efficient generation, transmission, and use of energy.
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Energy for a Sustainable Future

Energy for a Sustainable Future

Date: April 2010
Creator: UN Secretary-General’s Advisory Group on Energy and Climate Change (AGECC)
Description: This report provides a high-level overview and specific recommendations for governments to help achieve universal energy access and reduce energy intensity. The report recommends that energy access be achieved through a combination of grid extension, mini-grid access, and off-grid access approaches. The need for government targets, access to financing, capacity building, and improved utility performance are also discussed.
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Energy Harvesting Wireless Piezoelectric Resonant Force Sensor

Energy Harvesting Wireless Piezoelectric Resonant Force Sensor

Date: December 2013
Creator: Ahmadi, Mehdi
Description: 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.
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Energy Losses of Protons Projected through a Plasma Due to Collisions with Electrons of the Plasma for a Variety of Non-Maxwellian Electron Velocity Distributions

Energy Losses of Protons Projected through a Plasma Due to Collisions with Electrons of the Plasma for a Variety of Non-Maxwellian Electron Velocity Distributions

Date: August 1961
Creator: Kregel, Mark Douglas
Description: The purpose of this thesis is to study energy losses suffered by protons in traversing a plasma through collision with the electrons of the plasma. For these electrons a variety of non-Maxwellian velocity distributions are assumed.
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Energy Paths and Political Commitments: Their Roles in Environmental Inequality

Energy Paths and Political Commitments: Their Roles in Environmental Inequality

Date: May 2014
Creator: Ong, Corinne
Description: Decentralized renewable energy procurement has gained traction in recent years for its potential to alleviate rural energy poverty and environmental degradation in developing countries. Hence, this study investigates if deploying renewable energy can mitigate rural energy poverty in developing countries as often claimed. Because any energy regime cannot be initiated or sustained without the conviction of local political leaders, the study also evaluates the extent to which government investments in the development of renewable energy technologies and the energy sector, affect the environmental quality (i.e. greenhouse gas emissions) of developing countries. Energetic theory and environmental inequality constitute the key conceptual premises guiding this study. Ordinary least squares regression is utilized to analyze the relationship between key variables. The results reveal that as of 2010, use of renewable energy can indeed support rural electrification. Higher GNI per capita and use of conventional fuels are also positively related to rural electrification, all else equal. As for environmental degradation in 2005 and 2008, R&D investments actually tend to increase GHG emissions; procuring energy from either renewable or non-renewable sources is however, found to be environmentally detrimental, net of all other variables. Finally, some evidence is found for the role of aid funds and ...
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Energy Policy Act

Energy Policy Act

Date: January 4, 2005
Creator: United States. Congress
Description: The Energy Policy Act (EPA) addresses energy production in the United States, including: (1) energy efficiency; (2) renewable energy; (3) oil and gas; (4) coal; (5) Tribal energy; (6) nuclear matters and security; (7) vehicles and motor fuels, including ethanol; (8) hydrogen; (9) electricity; (10) energy tax incentives; (11) hydropower and geothermal energy; and (12) climate change technology. For example, the Act provides loan guarantees for entities that develop or use innovative technologies that avoid the by-production of greenhouse gases. Another provision of the Act increases the amount of biofuel that must be mixed with gasoline sold in the United States.
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Energy Policy in the Republic of China and Japan, 1970-1985: A Comparative Examination of Energy Politics and Policies

Energy Policy in the Republic of China and Japan, 1970-1985: A Comparative Examination of Energy Politics and Policies

Date: August 1987
Creator: Wang, Han-Kuo
Description: The impact of the energy crises in the 1970s hit all oil-importing countries much harder than it hit countries endowed with domestic supplies of energy. Energy politics and policies for the oil-importing countries have become vital issues that need to be examined. The purpose of this dissertation is to examine and compare the energy politics and policy processes in the Republic of China (ROC) and Japan during the period of 1970-1985. The study focuses on the politics of energy policies, using a policy analysis or systems framework for examining the policy processes in the two countries. A comparison is made of energy environments, the political actors, the institutions, and finally the substance of energy policy. An assessment is then made of the effects or consequences of energy policies on these two countries. In attempting to study energy politics and policies in these two Asian countries, the researcher began with a policy model or conceptual schema of energy politics from which the researcher raised a number of research questions. These questions were used to guide the direction of the study. A comparison was first made of energy systems, and then the major actors in the energy resources field were identified by ...
Contributing Partner: UNT Libraries
Energy Usage While Maintaining Thermal Comfort : A Case Study of a UNT Dormitory

Energy Usage While Maintaining Thermal Comfort : A Case Study of a UNT Dormitory

Date: December 2011
Creator: Gambrell, Dusten
Description: Campus dormitories for the University of North Texas house over 5500 students per year; each one of them requires certain comfortable living conditions while they live there. There is an inherit amount of money required in order to achieve minimal comfort levels; the cost is mostly natural gas for water and room heating and electricity for cooling, lighting and peripherals. The US Department of Energy has developed several programs to aid in performing energy simulations to help those interested design more cost effective building designs. Energy-10 is such a program that allows users to conduct whole house evaluations by reviewing and altering a few parameters such as building materials, solar heating, energy efficient windows etc. The idea of this project was to recreate a campus dormitory and try to emulate existent energy consumption then try to find ways of lowering that usage while maintaining a high level of personal comfort.
Contributing Partner: UNT Libraries
Engaging Lives: a Nomadic Inquiry Into the Spatial Assemblages and Ethico-aesthetic Practices of Three Makers

Engaging Lives: a Nomadic Inquiry Into the Spatial Assemblages and Ethico-aesthetic Practices of Three Makers

Date: May 2014
Creator: Coats, Cala R.
Description: This research is a nomadic inquiry into the ethics and aesthetics of three makers’ social and material practices. Deleuze’s concept of the nomad operated in multiple ways throughout the process, which was embedded in performative engagements that produced narratives of becoming. Over four months, I built relationships with three people as I learned about the ethico-aesthetic significance of their daily practices. The process started by interviewing participants in their homes and expanded over time to formal and informal engagements in school, community, and agricultural settings. I used Guattari’s ecosophical approach to consider how subjectivity was produced through spatial assemblages by spending time with participants, discussing material structures and objects, listening to personal histories, and collaboratively developing ideas. Participants included a builder who repurposed a missile base into a private residence and community gathering space, an elementary art teacher who practiced urban homesteading, and a young artist who developed an educational farm. The research considers the affective force of normalized social values, the production of desire by designer capitalism, and the mutation of life from neoliberal policies. Our experiences illuminate the community-building potential of direct encounters and direct exchanges. The project generates ideas for becoming an inquirer in the everyday and ...
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Engineered Microbial Consortium for the Efficient Conversion of Biomass to Biofuels

Engineered Microbial Consortium for the Efficient Conversion of Biomass to Biofuels

Date: August 2014
Creator: Anieto, Ugochukwu Obiakornobi
Description: Current energy and environmental challenges are driving the use of cellulosic materials for biofuel production. A major obstacle in this pursuit is poor ethanol tolerance among cellulolytic Clostridium species. The first objective of this work was to establish a potential upper boundary of ethanol tolerance for the cellulosome itself. The hydrolytic function of crude cellulosome extracts from C. cellulolyticum on carboxymethyl cellulose (CMC) with 0, 5, 10, 15, 20 and 25% (v/v) ethanol was determined. Results indicated that the endoglucanase activity of the cellulosome incubated in 5% and 10% ethanol was significantly different from a control without ethanol addition. Furthermore a significant difference was observed in endoglucanase activity for cellulosome incubated in 5%, 10%, 15%, 20% and 25% ethanol in a standalone experiment. Endoglucanase activity continued to be observed for up to 25% ethanol, indicating that cellulosome function in ethanol will not be an impediment to future efforts towards engineering increasing production titers to levels at least as high as the current physiological limits of the most tolerant ethanologenic microbes. The second objective of this work was to study bioethanol production by a microbial co-culture involving Clostridium cellulolyticum and a recombinant Zymomonas mobilis engineered for the utilization of oligodextrans. The ...
Contributing Partner: UNT Libraries
England and the International Monetary System of the Nineteenth Century

England and the International Monetary System of the Nineteenth Century

Date: May 1963
Creator: Murray, Jack W.
Description: There were two international standards in the nineteenth century, the theoretical gold standard and the historical sterling standard. The primary interest of this thesis is the latter, although the theoretical framework of the gold standard will also be examined. Because of its role in the London money market, particular attention will be given to the Bank of England. Since the Bank and the international standards were products of the evolutionary and revolutionary changes which occurred in Britain during the eighteenth and nineteenth centuries, an attempt will be made to examine them within their historical context.
Contributing Partner: UNT Libraries
English Adverbials of Degree and Extent

English Adverbials of Degree and Extent

Date: August 1971
Creator: Campbell, Iva Helen Harter
Description: This thesis presents detailed descriptions of the English adverbial of degree (e.g., very, quite,rather,extremely) and the adverbial of extent (e.g., much, some, at all, excessively).
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The English Constitution and Foreign Affairs in 1621

The English Constitution and Foreign Affairs in 1621

Date: 1958
Creator: Sneed, Edgar P.
Description: This thesis discusses the English constitution and foreign affairs in 1621 including the transition from Tudor to Stuart monarchy following the death of Elizabeth I and the accession of James VI of Scotland.
Contributing Partner: UNT Libraries
English Devotional Song of the Seventeenth Century in Printed Collections from 1638 to 1693: A Study of Music and Culture

English Devotional Song of the Seventeenth Century in Printed Collections from 1638 to 1693: A Study of Music and Culture

Date: May 1986
Creator: Treacy, Susan
Description: Seventeenth-century England witnessed profound historical, theological, and musical changes. A king was overthrown and executed; religion was practiced fervently and disputed hotly; and English musicians fell under the influence of the Italian stile nuovo. Many devotional songs were printed, among them those which reveal influences of this style. These English-texted sacred songs for one to three solo voices with continuo--not based upon a previously- composed hymn or psalm tune—are emphasized in this dissertation. Chapter One treats definitions, past neglect of the genre by scholars, and the problem of ambiguous terminology. Chapter Two is an examination of how religion and politics affected musical life, the hiatus from liturgical music from 1644 to 1660 causing composers to contribute to the flourishing of devotional music for home worship and recreation. Different modes of seventeenth-century devotional life are discussed in Chapter Three. Chapter Four provides documentation for use of devotional music, diaries and memoirs of the period revealing the use of several publications considered in this study. Baroque musical aesthetics applied to devotional song and its raising of the affections towards God are discussed in Chapter Five. Chapter Six traces the influence of Italian monody and sacred concerto on English devotional song. The earliest ...
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An English-French Glossary of Library Terms

An English-French Glossary of Library Terms

Date: August 1939
Creator: Collier, Thelma Johns
Description: The problem in this study has been to analyze the vocabulary needs in the field of Library Service and to develop a professional tool, including an English-French glossary of approximately fifteen hundred terms concerning the making, the acquisition, and the organization of books as related to Library Service.
Contributing Partner: UNT Libraries
English language learners: Does summer school make a difference in young children's literacy scores?

English language learners: Does summer school make a difference in young children's literacy scores?

Access: Use of this item is restricted to the UNT Community.
Date: August 2006
Creator: Wickert, DeAnna S.
Description: Many school districts consider literacy and oral language as a top priority for pre-kindergarten students. In the district under study, pre-kindergarten English language learner (ELL) students are encouraged to attend a special summer school program to increase their oral language ability in English. This study compared three groups of children: ELL students attending summer school v. ELL students not attending summer school v. English speaking students not attending summer school. The students' primary reading inventory scores from the end of pre-kindergarten to the middle of kindergarten in the areas of reading, writing and oral language were compared. As expected, ELLs who attended summer school showed significant growth in oral language development from the beginning of summer school to the end of summer school. While it was hypothesized that ELL students attending summer school would show more improvement in oral language than other children over time, there was no significant difference between summer school and non-summer school children's scores by the middle of kindergarten.
Contributing Partner: UNT Libraries