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Trends in Relative Abundance and Size of Selected Finfishes and Shellfishes Along the Texas Coast: November 1975-December 2016 (open access)

Trends in Relative Abundance and Size of Selected Finfishes and Shellfishes Along the Texas Coast: November 1975-December 2016

Report documenting information about the trends in relative abundance and size of select fin fishes and shellfishes along the coast of Texas.
Date: March 2018
Creator: Martinez-Andrade, Fernando
Object Type: Report
System: The Portal to Texas History
The Middle Matters: Political Responses to Income Inequality in an American State (open access)

The Middle Matters: Political Responses to Income Inequality in an American State

This dissertation examines the effects of micro-level inequality on political preferences and voting behavior.
Date: May 2018
Creator: Mcgauvran, Ronald Joel
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Biogeographic Distribution of Caddisflies (Insecta: Trichoptera) within the South-Central United States (open access)

The Biogeographic Distribution of Caddisflies (Insecta: Trichoptera) within the South-Central United States

Through the use of natural history records, published literature, and personal sampling (2011-2016) a total of 454 caddisfly species represented by 24 families and 93 genera were documented from the south-central United States. Two Hydroptilidae species were collected during the 2011-2016 collection efforts that are new to the region: Hydroptilia scheringi and Mayatrichia tuscaloosa. Eightteen species are endemic and 30 are considered species of concern by either federal or state agencies. The majority of each of these groups is Hydroptilidae, or microcaddisflies. Trichoptera community structure, by minimum number of species, was analysed in conjunction with large-scale geographical factors to determine which factor illustrated caddisfly community structure across the region. Physiographic provinces compared to other geographic factors analyzed best-represented caddisfly communities with a minimum of 10 or more species. Statistically, Hydrologic Unit Code 4 (HUC 4) was the most significant geographical factor but low number of samples representing this variable rendered it less representative of caddisfly community structure for the study area.
Date: May 2018
Creator: Perry, Heather Ann
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Final Report: Groundwater Availability Model for the Central Portion of the Carrizo-Wilcox, Queen City, and Sparta Aquifers, Volume 1 (open access)

Final Report: Groundwater Availability Model for the Central Portion of the Carrizo-Wilcox, Queen City, and Sparta Aquifers, Volume 1

Report on the updates being made to the groundwater availability model that covers the Carrizo-Wilcox, Queen City, and Sparta aquifers. This update is to make the model useful for groundwater planning and management.
Date: September 2018
Creator: Young, Steven; Jigmond, Marius; Jones, Toya & Ewing, Tom
Object Type: Report
System: The Portal to Texas History
Supply Chain Finance: Developing a Weighted Cash Conversion Cycle to Proxy Corporate Financial Performance (open access)

Supply Chain Finance: Developing a Weighted Cash Conversion Cycle to Proxy Corporate Financial Performance

The objective of this three-essay dissertation are to develop a weighted cash conversion cycle (CCC_EVA) and empirically investigate its commensurability of corporate financial performance. Essay 1, titled "Supply Chain Finance: Developing a Weighted Cash Conversion Cycle to Proxy Operations Liquidity", presents the development and supporting empirical evidence of CCC_EVA measurability of operations liquidity. This essay shows the processes of scaling capital intensity and financing cost into time intervals captured by the traditional metric. Specifically, this essay investigates how accurately CCC_EVA indexes operations liquidity captured working capital, operational cash flow-to-modified working capital ratio, and quick ratio. The sample used in this essay consists of 4,333 firm-year observations of publicly traded industry classified firms listed on the U.S. exchange markets. The results of the empirical testing have statistically supported the essay hypotheses, that is CCC_EVA is a more accurate proxy of operations liquidity in comparison to the traditional metric (CCC_D). Essay 2, titled "Supply Chain Finance: Weighted Cash Conversion Cycle and Corporate Finance", expands the first essay findings by accounting for well-known financial measurements. Specifically, this essay examines the relations between CCC_EVA and operations liquidity and leverage, Market value, operating profitably and growth, and long-term asset management efficiency. This essay paper has …
Date: August 2018
Creator: Hammady Brho, Mazen
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Evaluation of Climate Change Impacts on Wetland Vegetation in the Dunhuang Yangguan National Nature Reserve in Northwest China Using Landsat Derived NDVI (open access)

Evaluation of Climate Change Impacts on Wetland Vegetation in the Dunhuang Yangguan National Nature Reserve in Northwest China Using Landsat Derived NDVI

This article uses 41 Landsat images between 1988 and 2016 to calculate the normalized difference vegetation indices (NVDIs) of the wetland vegetation at Xitugou (XTG) and Wowachi (WWC) inside the Dunhuang Yangguan National Nature Reserve in northwest China in order to assess the impacts of climate change on wetland vegetation.
Date: May 10, 2018
Creator: Pan, Feifei; Xie, Jianping; Lin, Juming; Zhao, Tingwei; Ji, Yongyuan; Hu, Qi et al.
Object Type: Article
System: The UNT Digital Library
Cultural Influence on Attachment and Psychopathic Traits (open access)

Cultural Influence on Attachment and Psychopathic Traits

Individuals evidencing psychopathic personality traits have been shown to have problematic attachment to others. Moreover, research suggests that culture affects attachment style as well as the expression of various psychopathic traits using the four-factor model of psychopathy. However, the majority of this research has included only white college students, which is a limiting factor. The current study assessed the relations among attachment representations and psychopathic features across two independent samples (one adult & one adolescent) from different world regions (adults only), ethnicity (adolescents only), and gender. Using similar assessments of attachment and psychopathic traits for both samples, dismissing attachment was related to aspects of psychopathic traits in nearly all cultures and ethnicities sampled. In the world sample, secure attachment was found to positively relate to impulsive and parasitic lifestyle traits in all regions. Culture and gender were found to moderate several relations between specific attachment styles and psychopathic features. Overall, the patterns of data indicated that many of the differences found between groups may be rooted in individualistic versus collectivistic values, and were consistent with previous research assessing these constructs across diverse samples.
Date: August 2018
Creator: Lasslett, Heather Elicia
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Acid-base regulation in the air-breathing swamp eel (Monopterus albus) at different temperatures (open access)

Acid-base regulation in the air-breathing swamp eel (Monopterus albus) at different temperatures

Article describes study in which researchers characterized the influence of temperature on arterial acid–base balance and intracellular pH (pHi) in the bimodal-breathing swamp eel, Monopterus albus.
Date: February 27, 2018
Creator: Thinh, Phan Vinh; Phuong, Nguyen Thanh; Brauner, Colin J.; Huong, Do Thi Thanh; Wood, Andrew T.; Kwan, Garfield T. et al.
Object Type: Article
System: The UNT Digital Library
Texas Family Law Practice Manual: Third Edition, Practice Notes 2018 (open access)

Texas Family Law Practice Manual: Third Edition, Practice Notes 2018

Manual compiled by professional lawyers in the state of Texas regarding the processes and forms needed for Family Code law. It includes forms with filler text and extensive explanations about how the forms might be completed depending on various common scenarios, mainly organized by cause of action.
Date: 2018
Creator: State Bar of Texas. Family Law Section. Council.
Object Type: Book
System: The Portal to Texas History
Seasonal variations of biogeochemical matter export along the Langtang-Narayani river system in central Himalaya (open access)

Seasonal variations of biogeochemical matter export along the Langtang-Narayani river system in central Himalaya

Article describes study in which weathering and suspended matter fluxes of the Langtang Narayani river system in central Nepal Himalaya were investigated at 16 stations for one year, based on monthly water sampling in the lower reaches and bi-monthly in higher elevation areas, to determine temporal variations of weathering fluxes along an elevation profile between 169 and 3989 m asl.
Date: July 7, 2018
Creator: Bhatt, Maya P.; Hartmann, Jens & Acevedo, Miguel F.
Object Type: Article
System: The UNT Digital Library
Global Warming Potential Estimates for the C₁–C₃ Hydrochlorofluorocarbons (HCFCs) Included in the Kigali Amendment to the Montreal Protocol (open access)

Global Warming Potential Estimates for the C₁–C₃ Hydrochlorofluorocarbons (HCFCs) Included in the Kigali Amendment to the Montreal Protocol

This article reports global warming potentials (GWPs) for all C₁-C₃ hydrochlorofluorocarbons (HCFCs) based on estimated atmospheric lifetimes and theoretical methods used to calculate infrared absorption spectra.
Date: May 4, 2018
Creator: Papanastasiou, Dimitrios K.; Beltrone, Allison; Marshall, Paul & Burkholder, James B. (James Bart), 1954-
Object Type: Article
System: The UNT Digital Library
Connected and Benevolent: The Positive Impact of Social Connections in Reducing Economic Concerns for Volunteering (open access)

Connected and Benevolent: The Positive Impact of Social Connections in Reducing Economic Concerns for Volunteering

This dissertation attempts to answer how social and economic mechanisms operate in individual, community and state levels to impact volunteering. Both social processes and economic factors significantly impact the amount of volunteering. However, researchers have a tendency to explain volunteering only by one of these factors. As both theories are equally important in explaining volunteerism, the development of a coherent theory is necessary to combine economic and social theories. This dissertation suggested that, when evaluated together, the influences of the economic factors on volunteering diminish as individuals get more connected with the other members of the society. The three-level analysis of the volunteering largely supports the primary hypothesis of the dissertation that economic concerns for volunteering are crowded out when individuals or the society is highly connected. This finding can help practitioners design better strategies to enhance volunteering such as creating opportunities for the members of the society to interact with each other.
Date: May 2018
Creator: Baktir, Yusuf
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Modeling Information Seeking Under Perceived Risk (open access)

Modeling Information Seeking Under Perceived Risk

Information seeking and information avoidance are the mechanisms humans natural used for coping with uncertainties and adapting to environmental stressors. Uncertainties are rooted in knowledge gaps. In social sciences, the relationship between knowledge gaps and perceived risk have received little attention. A review of the information science literature suggests that few studies have been devoted to the investigation of the role of this relationship in motivating information-seeking behavior. As an effort to address the lack of theory building in the field of information science, this study attempts to construct a model of information seeking under risk (MISR) by examining the relationships among perceived risk, knowledge gap, fear arousal, risk propensity, personal relevance, and deprivation and interest curiosity as antecedents to motivation to seek information. An experimental approach and a scenario-based survey method are employed to design the study. Partial least square structural equation modeling (PLS-SEM) analysis was conducted to test the relationships in the proposed model. Perceived risk was found to be a highly significant predictor of information seeking in moderately high-risk situations. Similarly, personal relevant has a significant negative effect on perceived risk and its interaction with knowledge gap motivates information seeking.
Date: December 2018
Creator: Shakeri, Shadi
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Trident of Corporate Corruption Control: Implications and Effects (open access)

The Trident of Corporate Corruption Control: Implications and Effects

Corporate corruption is a widespread phenomenon that persists in the functioning of both public and private companies of differing size, performance, industry, and national origin. As it generates negative effects both within and outside the organization, corporate corruption has been the subject of scholarly research. Yet, despite attempts to understand its antecedents and consequences, companies continue to struggle to eliminate corruption in their business practices. Thus, the overarching research question for this dissertation is "Why do companies continue engaging in corruption?" To answer this research question, I focused on the topic of organizational corruption control, i.e., a set of mechanisms that purposefully target the prevention of corrupt practices within an organization. Specifically, I investigated the trident of organizational corruption control via its effects and implications on three constructs - corporate social performance, opportunity attractiveness of organizational corruption and corporate corruption recidivism. Using distinct methodologies, I examined corporate corruption control in three separate studies to address 1) the effect of corruption control on the opportunity attractiveness of organizational corruption 2) the effect of corruption control on corporate social performance and 3) the implication of ineffective corruption control on organizational corruption recidivism. Based on interdisciplinary theoretical perspectives and several secondary data sources, …
Date: December 2018
Creator: Orudzheva, Leyla
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Demand and Supply Explanation: Nonprofit Size in Homeless Service Area (open access)

Demand and Supply Explanation: Nonprofit Size in Homeless Service Area

This study explores the demand and supply oriented factors that may contribute to the size of nonprofit organizations in the U.S. communities. This research tests demand theory, which indicated that nonprofit organizations grow more in communities where large service demand exists and when there is a service gap between community demand and government service supply. On the other hand, supply theories contend that nonprofit organizations are prevalent where a community carries the supply of human capital and financial resources and these supply of human and economic capital will mobilize nonprofit organizations to fulfill civic duties. For the scientific test of demand and supply theories, this study employs hierarchical linear model (HLM) and develops a longitudinal data set from multiple sources such as Department of Housing and Urban Development and National Charitable Center for Statistics, and Census. The proposed model analyzes how demand and supply indicators explain homeless serving nonprofit organizations size. The size of homeless service nonprofit was measured by three indicators: number of nonprofits, revenue of nonprofits and number of shelter beds. The findings of HLM analyses confirmed some of demand and supply factors that contribute homeless service nonprofit size. The communities with higher level of chronic homeless population …
Date: December 2018
Creator: Kilic Gorunmek, Hediye
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Population Dynamics and Community Structure of Mosquitoes (Diptera: Culicidae) Recorded in Denton, Texas from 2005 to 2015 (open access)

Population Dynamics and Community Structure of Mosquitoes (Diptera: Culicidae) Recorded in Denton, Texas from 2005 to 2015

A population survey was conducted on the mosquito species recorded in Denton, Texas for the years of 2005 to 2015. Data used in this project were obtained from an ongoing, long-term surveillance program led by the City of Denton and conducted through the University of North Texas. Research focused on the population dynamics and community structure of mosquitoes collected within urban areas of Denton, Texas in relation to certain environmental variables. A total of 80,837 female mosquitoes were captured and represented 38 species found under the following genera: Aedes, Anopheles, Coquillettidia, Culex, Culiseta, Mansonia, Orthopodomyia, Psorophora, Toxorhynchites, and Uranotaenia. Culex quinquefasciatus was the most abundant species followed by Aedes vexans. Seasonal patterns of the most abundant species revealed high variability throughout the study. Container breeders were most abundant in August and those that breed in floodwaters were most abundant in the months of May and September. Samples were tested for arbovirus presence through the Texas Department of State Health Services in Austin, Texas and multiple pools tested positive for West Nile virus throughout the study. Stepwise multiple regression and Spearman's rank correlation analyses were performed to examine the relationship between the mosquito community and environmental variables. Data revealed that temperature, …
Date: May 2018
Creator: Hambrick, Bethany Lynn
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Does the Method of Financing Stock Repurchases Matter? Examining the Financing of Share Buybacks and Its Effect on Future Firm Investments and Value (open access)

Does the Method of Financing Stock Repurchases Matter? Examining the Financing of Share Buybacks and Its Effect on Future Firm Investments and Value

Recent increases in stock repurchases among U.S. corporations coupled with a historically low cost of debt since the Global Financial Crisis has created media speculation that firms in recent years are paying for their expanding share buyback programs with debt. Repurchasing stock by increasing leverage, instead of using internal funds, implies that managers may speculate on current low interest rate environments at the expense of shareholders. Recent studies find that stock repurchases are associated with reductions in future firm employment and investments such as capital expenditures and research and development expenses. This study expands on prior studies by evaluating how debt-financed stock repurchases affect firm investment, investigating the likelihood of these repurchases in low interest rate environments and assessing the effects on firm value. Results confirm that, in recent years, debt-financed repurchases have increased substantially and the probability of debt-financed repurchases increases in the presence of low interest rates. This relationship is especially pronounced in the years following the Global Financial Crisis. Debt-financed repurchases are associated with small reductions in firm investment; however, these reductions are significantly less after adjusting for industry conditions. Finally, there is little evidence that the method of financing repurchases affects firm value nor does it …
Date: December 2018
Creator: Peabody, Stephen Drew
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Effects of Family Cultural Capital on Reading Motivation and Reading Behavior in Elementary School Students with New Immigrant Background: A Structural Equation Model (open access)

The Effects of Family Cultural Capital on Reading Motivation and Reading Behavior in Elementary School Students with New Immigrant Background: A Structural Equation Model

This study was designed to investigate the impact of family cultural capital on reading motivation and reading behavior among new immigrant children and non-immigrant children. This research used Chang and Wang's family cultural capital, reading motivation, and reading behavior questionnaire to conduct the survey. The target population of this study was students enrolled in fifth grade and sixth grade in elementary school in the fall of 2017 in Tainan, Taiwan. The sample include 414 students from new immigrant families and 422 students from non-immigrant families; the total number of individuals was 837. Structural equation modeling (SEM) analytical procedures were performed to test the hypothesized relationships. The results indicate that the seven latent variables were related to each other directly or indirectly. The main findings of this study are as follows: 1) family socioeconomic status significantly affects students' acquisition of family cultural capital; 2) family reading habits significantly affect students' reading motivation; 3) intrinsic reading motivation significantly affects students' reading behavior; and 4) external reading motivation shows no direct significant effect on reading time or the number of items read.
Date: August 2018
Creator: Tseng, Hui Te Li
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Estimation of technical change and price elasticities: a categorical time–varying coefficient approach (open access)

Estimation of technical change and price elasticities: a categorical time–varying coefficient approach

This article, proposes a categorical time-varying coefficient translog cost function, where each coefficient is expressed as a nonparametric function of a categorical time variable, thereby allowing each time period to have its own set of coefficients.
Date: October 24, 2018
Creator: Feng, Guohua; Gao, Jiti & Zhang, Xiaohui
Object Type: Article
System: The UNT Digital Library
An Investigation of the Value of Bank Capital in the Context of Mergers and Acquisitions in the Banking Industry (open access)

An Investigation of the Value of Bank Capital in the Context of Mergers and Acquisitions in the Banking Industry

I analyzed a sample of 228 U.S. bank acquisitions announced from January 1996 to December 2015. This dissertation explores whether acquiring banks pay more for targets with a higher capital ratio using a better measure of goodwill than previous studies. Specifically, this study uses manually collected goodwill to evaluate the value of bank capital, a measure that I argue is superior to those used in prior studies. I collect information about goodwill for 203 merger and acquisition (M&A) deals. I find a positive relation between the target's capital ratio and the goodwill paid for targets, which is consistent with previous cross sectional analysis on the relation between bank equity capital and value. This positive relation exists in the deals with a bank target, but not when the target is a savings institution. Furthermore, I find that the positive association between the target's capital ratio and goodwill paid by the acquirer only exists in the sample of acquisitions of banks announced before the 2007 financial crisis. This dissertation also evaluates the value of bank capital by analyzing the changes in shareholders' wealth around the announcement of M&As. My empirical analysis shows that banking mergers create value for the shareholder of targets. …
Date: August 2018
Creator: Liu, Shiang
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Survey of Shore-Based Bay-Pass and Gulf of Mexico Anglers in Texas, May 2013-May 2014, with comparisons to Concurrent Survey of Private-Boat Bay-Pass Anglers (open access)

Survey of Shore-Based Bay-Pass and Gulf of Mexico Anglers in Texas, May 2013-May 2014, with comparisons to Concurrent Survey of Private-Boat Bay-Pass Anglers

Report on Survey of Shore-Based Bay-Pass and Gulf of Mexico Anglers in Texas.(May 2013-May 2014)
Date: October 2018
Creator: Green, Lee M.; Pettis, Evan L. & Lerma, Liana
Object Type: Report
System: The Portal to Texas History
Texas Pattern Jury Charges: General Negligence, Intentional Personal Torts & Workers' Compensation (open access)

Texas Pattern Jury Charges: General Negligence, Intentional Personal Torts & Workers' Compensation

Guide listing pattern jury charges to assist the bench and bar in preparing the court's charge in the state of Texas, including definitions, instructions, and questions needed to submit jury charges. Indexes to statutes and rules cited, cases cited, and subjects start on page 527.
Date: 2018~
Creator: State Bar of Texas. Committee on Pattern Jury Charges.
Object Type: Book
System: The Portal to Texas History
Rentier States and Conflict: New Concepts, Different Perspectives (open access)

Rentier States and Conflict: New Concepts, Different Perspectives

Since the 1970s, a curious phenomenon has emerged, suggesting that resource rich countries are "cursed" by their resources. Over the last couple of decades, researchers have argued that rentier countries are more likely to have educational underachievement, the Dutch disease, corruption, slower democratization, and conflict. Although current research has proven helpful and productive, some aspects still remain contested in both theoretical and empirical terms. This dissertation aims to fill certain lacunae in this literature. My dissertation examines how ordinary citizens turn into dissidents and then to rebels in rentier states. I build and test an innovative theoretical argument, which focuses on individuals' daily lives, and explains how policies by rentier governments discourage merit-based employment. This, in turn, yields a high level of grievance among segments of the population. I also develop a comprehensive theory that combines macro-level and micro-level explanations of conflict onset in rentier states. Finally, I analyze an important, but previously neglected aspect of civil wars in rentier states: conflict outcomes. I suggest that the existence of abundant natural resources would have a significant impact on conflict outcomes. Accordingly, government victory would be more likely, and negotiated settlement would be less likely in rentier countries compared to non-rentier …
Date: May 2018
Creator: Ozsut, Melda
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Texas Pattern Jury Charges: Business, Consumer, Insurance & Employment 2018 Edition (open access)

Texas Pattern Jury Charges: Business, Consumer, Insurance & Employment 2018 Edition

Guide listing pattern jury charges to assist the bench and bar in preparing the court's charge in the state of Texas, including definitions, instructions, and questions needed to submit jury charges. Indexes to statutes and rules cited, cases cited, and subjects start on page 3.
Date: 2018
Creator: State Bar of Texas. Committee on Pattern Jury Charges.
Object Type: Book
System: The Portal to Texas History