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Environmental Correlates to Genetic Variation in the Coral Reef Fish, Thalassoma bifasciatum

Environmental Correlates to Genetic Variation in the Coral Reef Fish, Thalassoma bifasciatum

Date: December 1988
Creator: Pirkle, Michelle S.
Description: None
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Environmental Determinants and Choice of Project Evaluation Techniques in US and UK Firms

Environmental Determinants and Choice of Project Evaluation Techniques in US and UK Firms

Date: May 1996
Creator: Smolarski, Jan M. (Jan Mietek)
Description: The purpose of this dissertation is to develop a theory that helps explain the conditions under which firms select certain project evaluation techniques. This study uses contingency theory to analyze the impact of environmental uncertainty on the choice of project evaluation techniques. In addition to a direct measure of uncertainty, several dimensions of uncertainty are included in this study. These dimensions of uncertainty include control structure, method of financing, foreign assets, method of growth, and product domination. This study also analyzes the use of project evaluation, management science and risk management techniques in US firms over time and in UK firms over time in order to compare to prior research. A comparison of firms in the two countries are also provided. The primary method of data collection was a survey instrument. Data were also collected from annual reports and various other public sources. The variables that appear significant in the choice of project evaluation technique in US firms are environmental uncertainty, control structure, method of financing, foreign assets, and product domination. The variable that appear significant in the choice of project evaluation technique in UK firms is method of financing. US firms favor discounted cash flow techniques although this study ...
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Environmental Effect: Activator of the Psychotic Process

Environmental Effect: Activator of the Psychotic Process

Date: December 1984
Creator: Milam, Melody J.
Description: None
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An Environmental Evaluation and Public Opinion Survey Concerning Park and Recreation Development in Flower Mound, Texas

An Environmental Evaluation and Public Opinion Survey Concerning Park and Recreation Development in Flower Mound, Texas

Date: May 1985
Creator: Nelson, Thomas A.
Description: None
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Environmental Factors Influencing Chlorophyll-a Concentrations in Lake Texoma

Environmental Factors Influencing Chlorophyll-a Concentrations in Lake Texoma

Date: December 1998
Creator: Gibbs, Jennifer S. (Jennifer Sokolovic)
Description: An analysis of algal biomass measured by chlorophyll-a concentration in Lake Texoma was performed as a part of a monitoring program to develop baseline environmental data in order to detect the potential effects of engineered changes in chloride concentrations in the reservoir. This portion of the research project focused on two main research objectives. The first objective was evaluating the effect of sampling strategy on the ability to adequately reflect standing crop estimates and trends in algal biomass. Two sampling regimes utilizing replication of three versus ten samples were applied and then analyzed using a minimum detectable difference algorithm to determine the necessary magnitude of replication to represent the variation in the metric. Chlorophyll-a distribution was analyzed for zonation patterns expected in a river-run reservoir to establish the importance of representative sampling of river, transition and main lake zones of the reservoir for management decisions and trophic characterization.
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Environmental Imagination: the Constitution and Projection of a Sustainable Ethos

Environmental Imagination: the Constitution and Projection of a Sustainable Ethos

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Date: December 2014
Creator: Day, Philip Garrett
Description: This dissertation provides a theoretical analysis and examination of the role of imagination in the formation of an environmental ethos. The majority of ethical theories in environmental thought largely neglect the role that imagination plays in both the relationships that humans form with their environment, and the subsequent role that imagination plays in constituting the way that those relationships are understood ethically. To explore the role of imagination in constituting and subsequently projecting such an ethical way of being, this dissertation selectively analyzes the history of imagination in philosophy, cognitive science, and environmental thought. In addition, this dissertation also explores the role that images play in forming collective responses to environmental disasters, and the further role that imagination plays in overcoming the moral motivation gap.
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The Environmental is Political: Exploring the Geography of Environmental Justice

The Environmental is Political: Exploring the Geography of Environmental Justice

Date: August 2010
Creator: Mysak, Mark
Description: The dissertation is a philosophical approach to politicizing place and space, or environments broadly construed, that is motivated by three questions. How can geography be employed to analyze the spatialities of environmental justice? How do spatial concepts inform understandings of environmentalism? And, how can geography help overcome social/political philosophy's redistribution-recognition debate in a way that accounts for the multiscalar dimensions of environmental justice? Accordingly, the dissertation's objective is threefold. First, I develop a critical geography framework that explores the spatialities of environmental injustices as they pertain to economic marginalization across spaces of inequitable distribution, cultural subordination in places of misrecognition, and political exclusion from public places of deliberation and policy. Place and space are relationally constituted by intricate networks of social relations, cultural practices, socioecological flows, and political-economic processes, and I contend that urban and natural environments are best represented as "places-in-space." Second, I argue that spatial frameworks and environmental discourses interlock because conceptualizations of place and space affect how environments are perceived, serve as framing devices to identify environmental issues, and entail different solutions to problems. In the midst of demonstrating how the racialization of place upholds inequitable distributions of pollution burdens, I introduce notions of "social location" and ...
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Environmental journalism curriculum as an imperative of democracy: A philosophical exploration.

Environmental journalism curriculum as an imperative of democracy: A philosophical exploration.

Date: August 2007
Creator: Loftis, Randy Lee
Description: Economic retrenchment, social shifts, and technological changes endanger journalism's democratic role. Journalism education faces parallel threats. I review the state of journalism and education, linking the crisis to society's loss of story, framed philosophically by the Dewey-critical theory split over journalism and power. I explore the potential for renewing journalism and education with Carey's ritual model and Postman's restoration of storytelling. I then summarize existing major academic programs and suggest a new interdisciplinary curriculum for environmental journalism, a specialty well suited to experimental, democracy-centered education. The curriculum uses as pedagogy active and conversational learning and reflection. A graduate introductory course is detailed, followed by additional suggested classes that could form the basis of a graduate certificate program or, with further expansion, a graduate degree concentration.
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An environmental justice assessment of the light rail expansion in Denton County, Texas.

An environmental justice assessment of the light rail expansion in Denton County, Texas.

Date: August 2007
Creator: Moynihan, Colleen T.
Description: This study analyzes the proposed passenger rail line expansion along US Interstate Highway 35 in Denton County, Texas. A multi-dimensional approach was used to investigate potential environmental justice (EJ) consequences from the expansion of the transportation corridor. This study used empirical and historical evidence to identify and prioritize sites for potential EJ concerns. Citizen participation in the decision making process was also evaluated. The findings of this research suggest that the southeast Denton community has the highest potential for environmental justice concerns. This study concludes by offering suggestions for an effective public participation process. These include the incorporation of a community's local history into an environmental justice assessment, and tailoring the public planning process to the demographics and culture of the residents.
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Environmental Modulation of the Onset of Air-breathing of the Siamese Fighting Fish and the Blue Gourami

Environmental Modulation of the Onset of Air-breathing of the Siamese Fighting Fish and the Blue Gourami

Access: Use of this item is restricted to the UNT Community.
Date: December 2015
Creator: Mendez Sanchez, Jose Fernando
Description: This study determined the effect of hypoxia on air-breathing onset and physiological and morphological characters in larvae of the air breathing fishes Trichopodus trichopterus and Betta splendens. Larvae were exposed intermittently (12/12 h daily) to 20, 17, and 14 kPa of PO2 from 1 to 40 days post-fertilization. Survival, onset of air breathing, wet body mass, O2, Pcrit were measured every 5 dpf. Hypoxia advanced by 4 days, and delayed by 9 days, the onset of air breathing in Betta and Trichopodus, respectively. Hypoxia increased larval body length, wet mass, and labyrinth organ respiratory surface of Betta, but did not affect these factors in Trichopodus. Hypoxic exposure increased O2 by 50-100% at each day throughout larval development in Betta, but had no effect on larval Trichopodus. Hypoxia decreased Pcrit in Betta by 37%, but increased Pcrit in Trichopodus by 70%. Larval Betta reared in hypoxia showed a modified heart rate:opercular rate ratio (3:1 to 2:1), but these changes did not occur in Trichopodus. Compared to Betta, the blood of Trichopodus had a higher P50 and much smaller Bohr and Root effects. These interspecific differences are likely due to ecophysiological differences: Betta is a non- obligatory air-breather after 36 dpf with ...
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Environmental Philosophy and the Ethics of Terraforming Mars: Adding the Voices of Environmental Justice and Ecofeminism to the Ongoing Debate

Environmental Philosophy and the Ethics of Terraforming Mars: Adding the Voices of Environmental Justice and Ecofeminism to the Ongoing Debate

Date: August 2013
Creator: French, Robert Heath
Description: Questions concerning the ethics of terraforming Mars have received some attention from both philosophers and scientists during recent decades. A variety of theoretical approaches have been supplied by a number of authors, however research pursuant to this thesis has indicated at least two major blindspots in the published literature on the topic. First, a broad category of human considerations involving risks, dangers, and social, political, and economic inequalities that would likely be associated with efforts to terraform Mars have been woefully overlooked in the published literature to date. I attempt to rectify that oversight by employing the interpretive lens of environmental justice to address questions of environmental colonialism, equality in terms of political participation and inclusion in decision making structures, risks associated with technological progressivism, and responses to anthropogenic climate change. Only by including the historically marginalized and politically disenfranchised "voices," of both humans and nonhumans, can any future plan to terraform Mars be deemed ethical, moral or just according to the framework provided by environmental justice. Furthermore, broader political inclusion of this sort conforms to what ecofeminist author Val Plumwood calls the "intentional recognition stance" and provides an avenue through which globally societies can include nonanthropocentric considerations in decision ...
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Environmental Pollution, Material Scarcity and the Development of Aluminum Recycling Reverse Channels of Distribution

Environmental Pollution, Material Scarcity and the Development of Aluminum Recycling Reverse Channels of Distribution

Date: August 1977
Creator: Ginter, Peter M.
Description: None
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Environmental Scanning Behavior in Physical Therapy Private Practice Firms: its Relationship to the Level of Entrepreneurship and Legal Regulatory Environment

Environmental Scanning Behavior in Physical Therapy Private Practice Firms: its Relationship to the Level of Entrepreneurship and Legal Regulatory Environment

Date: August 1988
Creator: Schafer, D. Sue
Description: This study examined the effects of entrepreneurship level and legal regulatory environment on environmental scanning in one component of the health services industry, private practice physical therapy. Two aspects of scanning served as dependent variables: (1) extent to which firms scrutinized six environmental sectors (competitor, customer, technological, regulatory, economic, social-political) and (2) frequency of information source use (human vs. written). Availability of information was a covariate for frequency of source use. Three levels of entrepreneurship were determined by scores on the Covin and Slevin (1986) entrepreneurship scale. Firms were placed in one of three legal regulatory categories according to the state in which the firm delivered services. A structured questionnaire was sent to 450 randomly selected members of the American Physical Therapy Association's Private Practice Section. Respondents were major decision makers, e.g., owners, chief executive officers. The sample was stratified according to three types of regulatory environment. A response rate of 75% was achieved (n = 318) with equal representation from each stratum. All questionnaire subscales exhibited high internal reliability and validity. The study used a 3x3 factorial design to analyze the data. Two multivariate analyses were conducted, one for each dependent variable set. Results indicated that "high" entrepreneurial level ...
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Environmental Scanning Practices of Manufacturing Firms in Nigeria

Environmental Scanning Practices of Manufacturing Firms in Nigeria

Date: May 1992
Creator: Sawyerr, Olukemi Olaitan
Description: The purpose of this study was to examine scanning practices in a developing country by looking at the scanning behavior of executives of Nigerian manufacturing firms. Specifically, this study examined the decision maker's perception of environmental uncertainty (PEU), the frequency and degree of interest with which decision makers scan each sector of the environment, the frequency of use of various sources of information, the number of organizational adjustments made in response to actions of environmental groups, and the obstacles encountered in collecting information from the environment.
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Environmental Virtue Education: Ancient Wisdom Applied

Environmental Virtue Education: Ancient Wisdom Applied

Date: August 2005
Creator: Lindemann, Monica A.
Description: The focus of environmental philosophy has thus far heavily depended on the extension of rights to nonhuman nature. Due to inherent difficulties with this approach to environmental problems, I propose a shift from the contemporary language of rights and duties to the concept of character development. I claim that a theory of environmental virtue ethics can circumvent many of the difficulties arising from the language of rights, duties, and moral claims by emphasizing the cultivation of certain dispositions in the individual moral agent. In this thesis, I examine the advantages of virtue ethics over deontological and utilitarian theories to show the potential of developing an ecological virtue ethic. I provide a preliminary list of ecological virtues by drawing on Aristotle's account of traditional virtues as well as on contemporary formulations of environmental virtues. Then, I propose that certain types of rules (rules of thumb) are valuable for the cultivation of environmental virtues, since they affect the way the moral agent perceives a particular situation. Lastly, I offer preliminary formulations of these rules of thumb.
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Environmentally-friendly purchase intentions: Debunking the misconception behind apathetic consumer attitudes.

Environmentally-friendly purchase intentions: Debunking the misconception behind apathetic consumer attitudes.

Date: December 2008
Creator: Umberson, Kirsten
Description: By measuring intentions to purchase, this research gives insight into environmental attitudes, pressures to purchase environmentally friendly apparel, factors that inhibit environmentally friendly apparel purchasing, awareness of environmentally friendly apparel purchase options, and marketing insight into the eco-friendly consumer. The theory of planned behavior (TPB) was used to assess consumer purchasing intentions for environmentally friendly apparel. The TPB consists of a three-pronged measurement: individual attitudes, subjective norms, and perceived behavioral control. Individual attitudes were gauged on three dimensions which included environmental attitudes, demographic patterns, and environmentally friendly apparel purchase intentions. Subjective norms involve social pressure to engage in eco-friendly behavior, perceived individual environmental impact, and desire for uniqueness in dress. Finally, perceived behavioral control was studied through previous environmentally friendly apparel purchases, accessibility of environmentally friendly apparel purchase options, and cost of environmentally friendly apparel. The results revealed that individual environmental attitudes, social pressure to behave environmentally friendly, perceived individual environmental impact, desire for uniqueness in dress, past environmentally friendly apparel purchases, accessibility of environmentally friendly apparel purchase options, and cost of environmentally friendly apparel all have an impact on intentions to purchase environmentally friendly apparel. The variable with the strongest relationship to intentions was social pressure. A demographic profile ...
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Enzyme Assays Using Earthworms for Assessing Innate and Nonspecific Immunotoxicity of Xenobiotics

Enzyme Assays Using Earthworms for Assessing Innate and Nonspecific Immunotoxicity of Xenobiotics

Date: May 1992
Creator: Chen, Shing-Chong
Description: Principal objectives of my research were to: (1) report for the first time that coelomocytes are able to reduce NBT dye and confirm the presence of lysozyme-like activity in earthworm; (2) develop a standard methodology for determination of NBT reduction and lysozyme-like activity in earthworms; (3) compare NBT reduction and lysozyme-like activity in earthworms with those of murine and human cells and fluids; and (4) demonstrate the sensitivity of earthworm NBT reduction and lysozyme-like activity as the assays using matrics in refuse-derived fuel fly ash (RDFF) and CuSO4.
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The Eosinophil and Lysophospholipase Responses in Mice Infected with Trichinella spiralis: A Role for the Lymphocyte and Macrophage

The Eosinophil and Lysophospholipase Responses in Mice Infected with Trichinella spiralis: A Role for the Lymphocyte and Macrophage

Date: August 1986
Creator: Adewusi, Iyabode Olukemi, 1958-
Description: The relationship among eosinophils, lysophospholipase activity and the immune response in animals infected with Trichinella spiralis was studied using in vivo and in vitro techniques. In an in vivo experiment, anti-thymocyte serum (ATS) was administered to mice infected with T. spiralis and its effects on intestinal lysophospholipase (EC 3.1.1.5.) activity, peripheral blood, bone marrow and intestinal eosinophilia were measured in the same experimental animal. The ATS caused a significant temporally related suppression of both the tissue lysophospholipase response and eosinophilia, in all three compartments. These findings support the hypothesis that parasite-induced eosinophilia is the cause of the increased lysophospholipase activity of parasitized tissue and that the responses are thymus cell-dependent. In vitro experiments demonstrated that the eosinophil was the primary inflammatory cell source of lysophospholipase among eosinophils, neutrophils macrophages and lymphocytes. The role of other cells and antigen in the production of the enzyme by the eosinophil was also investigated in vitro• Results demonstrated that eosinophils cultured with both T. spiralis antigen and other leukocytes yielded enzyme activities significantly greater than eosinophils cultured alone or with only antigen. More specific experiments showed that T-lymphocytes were the cells responsible for influencing the eosinophils' lysophospholipase activity in the presence of antigen, and ...
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The Eosinophil Response in Mice Infected with Trichinella spiralis or Trichinella pseudospiralis as Indicated by Phospholipase B Activity

The Eosinophil Response in Mice Infected with Trichinella spiralis or Trichinella pseudospiralis as Indicated by Phospholipase B Activity

Date: December 1992
Creator: Hsu, Shing-Chien
Description: The host eosinophil response was compared in mice infected with either T. spiralis or T. pseudospiralis by determination of levels of splenic and intestinal phospholipase B, a marker enzyme for eosinophils. Primary infection of naive mice and challenge infection of homologously sensitized mice with T. pseudospiralis resulted in significantly lower tissue phospholipase B activities than infection with T. spiralis. Mice homologously challenged with T. pseudospiralis did exhibit an anamnestic eosinophil response compared to mice given a primary T. pseudospiralis infection. This anamnestic response, however, was significantly lower than the eosinophil response seen in sensitized mice given a homologous T. spiralis challenge. Mice sensitized to T. spiralis or T. pseudospiralis and heterologous challenge demonstrated an elevated eosinophil response compared to mice given a primary infection with either parasite. The heterologous challenge response, however, was not as intense as found for sensitized mice given a homologous challenge.
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Ephippia Production, Activation, and Use of Ex-Ephippio Neonates of Ceriodaphnia Dubia as Toxicity Test Organisms

Ephippia Production, Activation, and Use of Ex-Ephippio Neonates of Ceriodaphnia Dubia as Toxicity Test Organisms

Date: August 1992
Creator: Poage, Duane W.
Description: None
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The Epic Element in Hiawatha

The Epic Element in Hiawatha

Date: August 1953
Creator: Bass, Mary Laura
Description: By tracing the development of the epic, oral and written, as in Chapter III, the qualities that are characteristic of the epic and the devices associated with the epic through continued usage were found to be the constant factors upon which the definition of the epic is formulated. The application to Hiawatha of the epic definition in terms of form, theme, subject matter, characters, tone, the use of the supernatural, and the use of characteristic devices, strengthens the thesis that Longfellow has written an epic.
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Epic Qualities in Moby-Dick

Epic Qualities in Moby-Dick

Date: August 1952
Creator: Russell, John Joe
Description: Many critics not satisfied with explaining Moby-Dick in terms of the novel, have sough analogies in other literary genres. Most often parallels have been drawn from epic and dramatic literature. Critics have called Moby-Dick either an epic or a tragedy. After examining the evidence presented by both schools of thought, after establishing a workable definition of the epic and listing the most common epic devices, and after examining Moby-Dick in terms of this definition and discovering many of the epic devices in it, I propose the thesis that Melville has written an epic, not unlike the great epics of the past.
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The Epic Strain in Joseph Conrad

The Epic Strain in Joseph Conrad

Date: January 1968
Creator: Witt, Dorothy
Description: This thesis will attempt to show that the three major works of Conrad's middle period -- Nostromo, The Secret Agent, and Under Western Eyes -- are essentially literary epics.
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Epidemiological Evaluation of Pain Among String Instrumentalists

Epidemiological Evaluation of Pain Among String Instrumentalists

Date: May 2011
Creator: Meidell, Katrin Liza
Description: Pain and performance anxiety (PA) are common problems among string players. Therefore, the purpose of this study was to assess and compare PA and prevalence rates and locations of pain in violinists, violists, cellists, and bassists. Subjects completed a questionnaire that included sections on demographics, musical background, practice habits, musculoskeletal problems, non-musculoskeletal problems, and PA. Anthropometric data were gathered on all 115 subjects. Results show that there are differences in both pain and PA across instrument groups. Violinists reported the highest number of pain sites, followed by violists, bassists, and cellists. The left shoulder was the most-often reported pain site, followed by the neck and right shoulder. Aching was the most cited term selected to describe pain. Several anthropometric indices were significantly correlated with pain, notably right thumb to index finger span in both cellists and bassists. In all instrument groups, at least one pain site was significantly correlated with one of four PA questions. Results warrant the development of intervention strategies and further study of the relationship between pain and performance anxiety.
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