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92
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91
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66
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505 Matching Results
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Defining Bioindicators for Freshwater Inflow Needs Studies
Report on a study of freshwater inflows in Galveston Bay as indicated by the population numbers of certain species that live in the bay such as Blue Catfish and and Pinfish.
Date:
2015
Creator:
Quigg, Antoinetta; Steichen, Jamie; Guthrie, Carla & Schoenbaechler, Calmee
Object Type:
Report
System:
The Portal to Texas History
Regional Water Plan: Region C, 2016, Volume 2. Appendices A-P
Appendices to the water plan for Region C including a bibliography, water supply charts and reports, water management strategies, and related reports.
Date:
December 2015
Creator:
Freese and Nichols, Inc.
Object Type:
Report
System:
The Portal to Texas History
Internal and External Drivers of Consumers’ Product Return Behaviors
Product return is a necessary part of the exchange process between companies and customers. It accounts for approximately 16% of total sales and a reduction in retailer / manufacturer profits by 3.8% on average. However, industry data also indicates that a significant portion of products are returned for reasons other than product failure – e.g., change of mind, found a lower price elsewhere, or fraudulent and unethical reasons. Consequently, many firms (e.g., REI) have altered their generous return policies to protect their profits. However, it’s been found that the restricted return policy could also reduce customer satisfaction, increase the perceived risk, and thus negatively affect customers’ loyalty towards a particular store or firm. Thus having a restrictive return policy does not help either. Extant literature mainly focuses on return policies. Little attention has been devoted to the product return behavior itself, thus missing the consumer’s perspective. This study, therefore, focuses on understanding consumers’ return behaviors, including different types of return behaviors, and the drivers and consequences of these different return behaviors. Towards this goal, this study first categorizes all possible types of consumers’ return behaviors into two broad categories - legitimate return behaviors and opportunistic return behaviors. Second, both internal …
Date:
August 2015
Creator:
Pei, Zhi "Kacie"
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Numerical Model Report for the High Plains Aquifer System Groundwater Availability Model
Report on a numerical model for the High Plains aquifer system groundwater availability system.
Date:
August 2015
Creator:
Deeds, Neil E. & Jigmond, Marius
Object Type:
Report
System:
The Portal to Texas History
Advancing Sustainable Materials Management: Facts and Figures 2013
This report discusses the U.S. Environmental Protection Agencies collected and reported data on the generation and disposal of wast in the United States over a 30 year period.
Date:
June 2015
Creator:
United States. Environmental Protection Agency. Office of Resource Conservation and Recovery
Object Type:
Report
System:
The UNT Digital Library
Advancing Sustainable Materials Management: 2013 Fact Sheet
Fact sheet related to solid waste management in the United States.
Date:
June 2015
Creator:
United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response.
Object Type:
Report
System:
The UNT Digital Library
Annual Energy Outlook 2015: with Projections to 2040
The Annual Energy Outlook 2015 (AEO2015), prepared by the U.S. Energy Information Administration (EIA), presents long-term annual projections of energy supply, demand, and prices through 2040.
Date:
April 2015
Creator:
United States. Energy Information Administration.
Object Type:
Report
System:
The UNT Digital Library
Long-Term Monitoring at East and West Flower Garden Banks National Marine Sanctuary, 2011-2012, Volume 1: Technical Report
This is a study on the 25 years of continuous monitoring of coral reefs in the East and West Flower Garden Banks in the Gulf of Mexico. The study was based on concerns of the impact of offshore oil and gas impact on these sensitive reefs.
Date:
June 2015
Creator:
Johnston, Michelle A.; Nuttall, Marissa F.; Eckert, Ryan J.; Embesi, John A.; Slowey, Niall C.; Hickerson, Emma L. et al.
Object Type:
Text
System:
The UNT Digital Library
Incumbent Response to Radical Technological Innovation: the Influence of Competitive Dynamics on Strategic Choice
Prior research on incumbent firm response to radical technological innovation identifies firm, technology, and environmental factors associated with incumbents’ performance after a technology shift. What remains unexplored are factors affecting choice of response made before a technological shift occurs. Such ex ante choices are important intermediate outcomes affecting long-term performance outcomes. Competitive considerations may be influential inputs in choice processes because technological innovation is often related to competitive strategy. The resulting research question for this study is: What role do competitive considerations play in incumbent firms’ ex ante strategic choices in response to potentially radical technological innovations? Findings from a survey of key informants in the electronics industry whose firms face a potential technological disruption (n=120) suggest that incumbents’ response choices are affected by competitor-related orientations and by perceptions of relative strength of their strategic assets. Limited support is found for a moderating effect of perceptions of the competitive environment. The results of this study extend theory on incumbent response to radical technological change by shedding light on the influence of competitor interdependence. Findings also suggest the importance of strategic choice as an intermediate variable in understanding incumbents’ long-term performance. Research examining choice factors at varied stages of a technology’s …
Date:
August 2015
Creator:
Carter, William R.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Sabine River Authority of Texas Comprehensive Annual Financial Report: 2015 and 2014
Annual financial report of the Sabine River Authority documenting income, expenditures, and other relevant financial information for fiscal years 2015 and 2014.
Date:
2015~
Creator:
Sabine River Authority of Texas
Object Type:
Report
System:
The Portal to Texas History
U.S. Farm Income Outlook for 2015
This report discusses national net farm income, which is a key indicator of U.S. farm well-being. The outlook for lower net farm income, coupled with record farm wealth, suggests a mixed financial picture heading into 2015 for the agricultural sector as a whole, with substantial regional variation.
Date:
February 18, 2015
Creator:
Schnepf, Randy
Object Type:
Report
System:
The UNT Digital Library
Therapist (Dis)Continuity, Therapeutic Relationship, and (Premature) Termination in a Psychology Training Clinic
Premature termination is a substantial problem with significant adverse effects for clients, therapists, and treatment organizations. Unfortunately, it is also a relatively common phenomenon within mental healthcare settings. Across varied mental healthcare settings, rates of premature termination have reportedly ranged from 19.7 % to 40 %. Perhaps not surprisingly, the rate of premature termination in training clinics is substantially higher than in community mental health settings and private practice, with 75 to 80 % of clients ending treatment services prematurely. The purpose of this study was to explore the combined effect of intake therapist continuity or discontinuity, and quality of the therapeutic relationship on premature termination. Intake therapist continuity, measures of working alliance, and termination outcome from 524 clients at the University of North Texas Psychology Clinic were utilized for adults receiving individual therapy services between August 2008 and August 2013. Results of the study suggest intake therapist continuity did not predict subjective termination status (X2(2, n = 524) = 1.61, p = 0.45), nor did it predict change in symptomology status (X2(3, n = 453) = 1.14, p = 0.77). Additionally, working alliance predicted subjective termination status (X2(6, n = 212) = 21.17, p < 0.01), but not change …
Date:
August 2015
Creator:
Al-Jabari, Rawya M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Sociological Applications of Topic Extraction Techniques: Two Case Studies
Limited research has been conducted with regards to the applicability of topic extraction techniques in Sociology. Addressing the modern methodological opportunities, and responding to the skepticism with regards to the absence of theoretical foundations supporting the use of text analytics, I argue that Latent Semantic Analysis (LSA), complemented by other text analysis techniques and multivariate techniques, can constitute a unique hybrid method that can facilitate the sociological interpretations of web-based textual data. To illustrate the applicability of the hybrid technique, I developed two case studies. My first case study is associated with the Sociology of media. It focuses on the topic extraction and sentiment polarization among partisan texts posted on two major news sites. I find evidence of highly polarized opinions on comments posted on the Huffington Post and the Daily Caller. The highest polarizing topic was associated with a commentator’s reference on Hoodies in the context of the Trayvon Martin’s incident. My findings support contemporary research suggesting that media pundits frequently use tactics of outrage to provoke polarization of public opinion. My second case study contributes to the research domain of the Sociology of knowledge. The hybrid method revealed evidence of topical divides and topical “bridges” in the intellectual …
Date:
August 2015
Creator:
Zougris, Konstantinos
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Women in the Labor Force: a Databook
This report presents historical and recent labor force and earnings data for women and men from the Current Population Survey (CPS), a national monthly survey of approximately 60,000 households conducted by the U.S. Census Bureau for the U.S. Bureau of Labor Statistics.
Date:
December 2015
Creator:
United States. Bureau of Labor Statistics.
Object Type:
Report
System:
The UNT Digital Library
Does Device Matter? Understanding How User, Device, and Usage Characteristics Influence Risky IT Behaviors of Individuals
Over the past few years, there has been a skyrocketing growth in the use of mobile devices. Mobile devices are ushering in a new era of multi-platform media and a new paradigm of “being-always-connected”. The proliferation of mobile devices, the dramatic growth of cloud computing services, the availability of high-speed mobile internet, and the increase in the functionalities and network connectivity of mobile devices, have led to creation of a phenomenon called BYOD (Bring Your Own Device), which allows employees to connect their personal devices to corporate networks. BYOD is identified as one of the top ten technology trends in 2014 that can multiply the size of mobile workforce in organizations. However, it can also serve as a vehicle that transfers cyber security threats associated with personal mobile devices to the organizations. As BYOD opens the floodgates of various device types and platforms into organizations, identifying different sources of cyber security threats becomes indispensable. So far, there are no studies that investigated how user, device and usage characteristics affect individuals’ protective and risky IT behaviors. The goal of this dissertation is to expand the current literature in IS security by accounting for the roles of user, device, and usage characteristics …
Date:
August 2015
Creator:
Negahban, Arash
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Estimation of Air Emissions During Production Phase from Active Oil and Gas Wells in the Barnett Shale Basin: 2010-2013
The Barnett shale basin, the largest onshore gas field in the state of Texas, mainly produces natural gas. The basin’s oil and gas productions have dramatically increased over the past two decades with the enhancement via shale fracturing (fracking) technology. However, recent studies suggest that air emissions from shale fracking have significantly contributed to the growing air pollution problem in North Texas. In this study, air emissions from the Barnett shale basin during the production phase of the oil and gas activities (once the product is collected from the wells) are quantified. Oil and gas production data were acquired from the Texas Railroad Commission for the baseline years of 2010 through 2013. Methodology from prior studies on shale basins approved by the Texas Commission on Environmental Quality was employed in this study and the emission inventories from the production phase sources were quantified. Accordingly, the counties with the most gas operations in the basin, Tarrant, Johnson, Denton and Wise, were found to be the highest emitters of air pollutants. Tarrant County was responsible for the highest emitted NOx (42,566 tons) and CO (17,698 tons) in the basin, while Montague County released the maximum VOC emissions (87,601 tons) during the study …
Date:
May 2015
Creator:
Dohde, Farhan A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Exceedance Frequency Analysis of Urban Stormwater Quality and Its Relation to Land Use Change, Denton, Texas
Urbanization causes various environmental issues including water pollution, air pollution, and solid waste. Urbanization of watersheds has a profound influence on the quality of stormwater runoff. The quality of stormwater runoff is highly associated with land use. This study analyzed the exceedance frequency of stormwater quality in five watersheds of Denton over eleven years and also analyzed the relationship between stormwater quality and land use/cover of each watershed. The results showed that the most of the water quality parameters that were examined in the Lower Pecan watershed exceeded their threshold most frequently. The higher frequency of exceedance in this watershed can be attributed to the wastewater treatment plant and landfill site. Total suspended solids and turbidity were frequently exceeded in Hickory and Clear Creek watersheds. Conductivity was found to have highest percentage of exceedance in Upper Pecan and Cooper watersheds. Thus, rural watersheds were related with higher exceedance of TSS and turbidity whereas urban watersheds were related with higher exceedance of conductivity.
Date:
August 2015
Creator:
Shrestha, Manjul
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Foreign Sponsorship and the Development of Rebel Parties
This dissertation examines the emergence, survival, performance, and national impact of rebel parties following negotiated settlements. Building on a growing literature examining the environmental and organizational factors affecting insurgent-to-party transformations, this dissertation asks why some insurgent organizations thrive as political parties in post-conflict environments and others fail to make such a transformation. I propose that foreign actors play a pivotal role in the formation of what I call “protégé parties,” which are better equipped to make the transformation into political parties than other rebel groups. Further, different kinds of sponsors have varying effects on transformation. Empirical analysis supports these propositions, finding that protégé parties with authoritarian sponsorship are better equipped to develop than those backed by democracies or no one.
Date:
December 2015
Creator:
Marshall, Michael C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Multireference Character for 4D Transition Metal-Containing Molecules
This article proposes new criteria, namely T₁ ≥ 0.045, D₁ ≥ 0.120, and %TAE ≥ 10%, as a gauge for 4d transition metal-containing molecules to predic the possible need to employ multireference (MR) wave function-based methods to describe energetic and spectroscopic properties.
Date:
October 14, 2015
Creator:
Wang, Jiaqi; Manivasagam, Sivabalan & Wilson, Angela K.
Object Type:
Article
System:
The UNT Digital Library
Applications of Single Reference Methods to Multi-Reference Problems
Density functional theory is an efficient and useful method of solving single-reference computational chemistry problems, however it struggles with multi-reference systems. Modifications have been developed in order to improve the capabilities of density functional theory. In this work, density functional theory has been successfully applied to solve multi-reference systems with large amounts of non-dynamical correlation by use of modifications. It has also been successfully applied for geometry optimizations for lanthanide trifluorides.
Date:
May 2015
Creator:
Jeffrey, Chris C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Assessing the Effects of Freshwater Inflows and Other Key Drivers on the Population Dynamics of Blue Crab and White Shrimp Using a Multivariate Time-Series Modeling Framework
Report on the effects of freshwater inflows and other environmental factors on population numbers of Blue Crabs and White Shrimp.
Date:
September 2015
Creator:
Buskey, Edward J.; Scheef, Lindsay P. & Xue, Jianhong
Object Type:
Report
System:
The Portal to Texas History
AMAP Assessment 2015: Black Carbon and Ozone as Arctic Climate Forcers
This assessment report presents the results of the 2015 AMAP Assessment of Black Carbon and Ozone as Arctic climate forcers. This assessment complements a separate 2015 AMAP assessment of methane as an Arctic climate forcer.
Date:
2015
Creator:
Arctic Monitoring and Assessment Programme
Object Type:
Report
System:
The UNT Digital Library
Co-Creating Value in Video Games: The Impact of Gender Identity and Motivations on Video Game Engagement and Purchase Intentions
When games were first developed for in-home use, they were primarily targeted almost exclusively at children and males. However, today’s marketplace manifests a more diverse population plays Internet-enabled games that can be played virtually anywhere. The average gamer is now 30 years old. Many gamers, obviously, are much older. Yet more strikingly, and more germane to this study’s purpose, 47% of the U.S. gamer population is female, as compared to 40% in 2010. Despite these trends the gaming industry remains a male-dominated culture. The marketer’s job is to facilitate game engagement and to motivate gamers to play. The notion of “engagement” is not new in business. The term was developed in the last decade. Many studies were devoted to understand, explain, and define the term. It suggests that within interactive, dynamic business environments, consumer engagement (CE) represents a strategic position that companies can use to enhance their sales growth, competitive advantage, and profitability. Moreover, there are three levels of engagement in any experiential consumption (i.e., playing video game): presence, flow, and psychological absorption. The findings of this study affirm that consumer engagement, including presence, flow and psychological absorption are explanatory factors that impact gamer’s purchase intentions. Our results show that …
Date:
May 2015
Creator:
Alhidari, Abdullah
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Nueces BBASC Work Plan Study No. 3: Nueces Watershed Pre- and Post-Development Nutrient Budgets
Report summarizing a nutrient budget study done for the Nueces Bay watershed in order to develop nutrient budgets and determine annual loads for the watershed.
Date:
August 2015
Creator:
HDR Engineering, Inc.
Object Type:
Report
System:
The Portal to Texas History