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A study of programmed cell death in cotton (gosypium hirsutum) fiber
(2009-05-15)
Cotton fiber has been postulated to undergo a process of programmed cell death (PCD) during the maturation phase of development. A parallel may exist between cotton fibers and xylem tracheary elements, which have periods ...
Prescribed Fire as the Catalyst to Control Prickly Pear Cactus Encroachment and Restore the Ecological Integrity of Texas Rangelands
(2019-01-04)
There is a pressing need to assist resource managers and ranchers with the recovery of degraded rangelands in the Edwards Plateau region of Texas. In the last century, the plant community in this rangeland savanna ecosystem ...
Essays on Online Gaming Communities
(2018-08-02)
This dissertation investigates key issues related to online gaming communities. Across three essays, the author explores the effects of three factors―(1) social connection, (2) demarketing, and (3) game design―on game ...
Simulations of Carbon Dynamics and Greenhouse Gas Emissions in Bioenergy Sorghum Production Systems in Texas
(2017-12-11)
Bioenergy sorghum [Sorghum bicolor (L.) Moench.] is a promising biofuel crop to mitigate greenhouse gas (GHG) emissions. However, optimum field management practices for its production in different regions and the effects ...
Passively Actuated Vibration to Decrease Membrane Fouling Rate for Centrifugal Reverse Osmosis
(2018-08-01)
A novel method of shaking a CRO membrane was designed. This method, called the Plug and
Pipe method, was simulated to determine how well it would work in a full CRO system. This
was done by a series of simulations. First, ...
Characteristics of High Reliability TEPC for Long Term Space Missions
(2018-08-02)
The Tissue Equivalent Proportional Counters (TEPC) have become a major part of the dosimetry system used on the International Space Station (ISS). TEPCs provide near real-time measurements of absorbed dose and dose equivalent ...
First Principles Investigation of Structural, Mechanical and Thermodynamic Properties of MAX Phases
(2018-07-26)
MAX phases are layered carbides or nitrides with general formula of Mvn+1AXvn. In this work
we present a first principles investigation of structural, mechanical, and thermodynamic properties
of MAX phases. Up to date ...
Long Term Maternal Diet Transition Recovers Inflammatory Phenotype and Offspring Obesity
(2018-08-07)
As the obesity epidemic continues to affect the chronic disease status of individuals worldwide, research that aims to elucidate the contribution of maternal health status to the perpetuation of the obesity cycle has become ...
How Well Do Era-Interim and Merra-2 Capture ITCZ Characteristics and Precipitation?
(2018-07-25)
The Intertropical Convergence Zone (ITCZ) is one of the most important features of the tropical atmosphere. Recent modeling and observational studies have shown changes in the width and precipitation intensity of this ...
Bipedal Walking Analysis, Control, and Applications Towards Human-Like Behavior
(2019-01-14)
Realizing the essentials of bipedal walking balance is one of the core studies in both robotics and biomechanics. Although the recent developments of walking control on bipedal robots have brought the humanoid automation ...