The University of Texas at Tyler is a coeducational public university located in Tyler, Texas, United States. Founded in 1971, it is a component institution of the University of Texas System.UT Tyler consists of four professional colleges and one traditional college of arts and science, offering over 90 academic degree programs at the bachelor, master, and doctoral levels. The University of Texas at Tyler is accredited by the Southern Association of Colleges and Schools. The university has a student body of 8,113, a 17:1 student to faculty ratio, and a park-like campus centered on Harvey Lake. Wikipedia.
Mayes V.E.,University of Texas at Tyler
Nuclear Physics B | Year: 2013
In Type II string vacua constructed from intersecting/magnetized D-branes, the supersymmetry-breaking soft terms are genericaly non-universal. It is shown that universal supersymmetry-breaking soft terms may arise in a realistic MSSM constructed from intersecting/magnetized D-branes in Type II string theory. For the case of dilaton-dominated supersymmetry breaking, it is shown that the universal scalar mass and trilinear coupling are fixed such that m0=(1/2)m3/2 and A0=-m1/2. In addition, soft terms where the universal scalar mass m0 is much larger than the universal gaugino mass m1/2 may be easily obtained within the model. Finally, it is shown that the special dilaton and no-scale strict moduli boundary conditions, which are well known in heterotic string constructions, may also be obtained. © 2013 Elsevier B.V.
Fumo N.,University of Texas at Tyler
Renewable and Sustainable Energy Reviews | Year: 2014
Energy security, environmental concerns, thermal comfort, and economic matters are driving factors for the development of research on reducing energy consumption and the associated greenhouse gas emissions in every sector of the economy. Building energy consumption estimation has become a key approach to achieve the goals on energy consumption and emissions reduction. Energy performance of building is complicated since it depends on multiple variables associated to the building characteristics, equipment and systems, weather, occupants, and sociological influences. This paper aims to provide an up-to-date review on the basics of building energy estimation. Regarding models, a classification for energy estimation models is proposed based on the different classifications found in the literature review. The paper focuses on models developed with whole building energy simulation software and their validation. This focus is justified because of the importance that whole building energy tools have gained on areas such as green building design, and analysis of energy conservation strategies and retrofits. Since a suitable weather file is a major component for reliably simulations, the section about weather data provides pertinent information. © 2013 Elsevier Ltd.
Haas B.K.,University of Texas at Tyler
Cancer Nursing | Year: 2011
Background: More than 192 000 US women faced the challenge of living with breast cancer in 2009. Although exercise may help combat treatment-related symptoms, cancer-related fatigue has been identified as a potential barrier to engaging in physical activity. Self-efficacy has been proposed to mediate the impact of cancer-related fatigue on physical activity and subsequently improve quality of life (QOL). Objective: The purpose of this study was to determine the linkages among the concepts of an introductory model of fatigue related to cancer, self-efficacy for physical activity, physical activity, and QOL in women being treated for breast cancer. Interventions/Methods: Women currently receiving treatment for breast cancer were asked to complete 5 instruments: demographic profile, Piper Fatigue Scale, Physical Activity Assessment Inventory, Human Activity Profile, and McGill QOL Questionnaire. Structural equation modeling of the data was performed to determine the direct and indirect influences of study variables on QOL. Results: The model was tested based on responses of 73 participants. All paths between variables were significant. The model explained 53% of the variance in QOL scores, 28% of the variance in physical activity, and 31% of the variance in self-efficacy. Conclusions: Although fatigue is most commonly thought of as a physical problem requiring physical intervention, this study provides emerging evidence to suggest there may be potential interventions to improve self-efficacy that may mediate the effect of fatigue on QOL. Implications for Practice: Interventions to improve self-efficacy may contribute to increased physical activity and improved QOL in this population. Copyright © 2011 Lippincott Williams & Wilkins.
Agency: NSF | Branch: Standard Grant | Program: | Phase: | Award Amount: 253.65K | Year: 2012
This award funds the acquisition of a set of walk-in controlled-environment chambers for plant experimentation. They are equipped with temperature, humidity, photoperiod, lighting, and CO2 controls. Up to 13,500 plants will efficiently fit into these chambers, allowing experiments at all times of the year, including the hot Texas summers. The integrative plant research programs enabled by these chambers will span many sub-disciplines in biology, including cellular biology, molecular biology, developmental biology, physiology, ecology, evolution, and genetics. These chambers will have a stimulating effect on plant biology research throughout Northeast Texas, a region with over one million people that has several universities and colleges but that has almost no facilities for environmentally controlled plant experiments. The primary users for these chambers work with agriculturally important plant families, and their work has either direct or indirect implications for agriculture. Furthermore, the research in these chambers can be conducted under different climate scenarios, including increased CO2 levels and temperatures.
Undergraduates and graduate students will be allocated space in the chambers to work on these and other projects, providing invaluable training opportunities for future scientists, farmers, and land managers. These findings will be publicized by scientific publications, faculty and student presentations at regional and national meetings, and press releases to local media outlets, which have low barriers to news coverage and large audiences.
Agency: NSF | Branch: Standard Grant | Program: | Phase: EVOLUTIONARY ECOLOGY | Award Amount: 81.17K | Year: 2014
This research will elucidate how the ecological and evolutionary processes of interacting species will respond to climate change at their range limits, with implications for conservation of species in marginal habitat. Climate change alters species distributions, with major consequences for species embedded in complex ecological interactions, such as mutualistic symbioses (e.g., plant-pollinator or host-microbe mutualisms). This project focuses on an insect-fungus mutualism, leafcutter ants cultivating fungi for food, which are agricultural pests in the southwestern USA and throughout the New World. Leafcutter mutualisms are ideal to study how symbioses respond to climate change because leafcutter ants are dominant components in ecosystems, and because experimental ant-fungus combinations can be manipulated under laboratory conditions simulating the altered temperature stresses expected under climate change. This research adapts techniques developed for the study of gene-by-gene interactions within an organism to test whether ant-by-fungus synergy enhances temperature-stress adaptations and thus determines range-limits at the northern (USA) and southern (Uruguay/Argentina) distributional limits of leafcutter ants.
Improved understanding of how interacting species respond to climate change has scientific and societal benefits, contributing to development of models for conservation of species in marginal habitat, and to models predicting whether mutualistic pest species may become more problematic under climate change. Collaborations with researchers in Uruguay and Argentina will provide training of US researchers in an international setting. This project is a collaboration among a major research institution, a regional institution, and an institution serving underrepresented students where some of the field research will be conducted, and will strengthen long term interactions and help foster enhanced STEM education initiatives. Furthermore, collaborations with researchers in Uruguay and Argentina will provide training of US researchers in an international setting. Workshops will be conducted at public schools, museums, and nature centers to foster understanding of local biodiversity, conservation, and challenges under environmental change.
Agency: NSF | Branch: Continuing grant | Program: | Phase: | Award Amount: 213.79K | Year: 2011
This project aims to bring nine students per summer to The University of Texas at Tyler for a memorable research experience for undergraduates. Students will work closely with three faculty members on projects in knot theory, tiling theory, and combinatorics on words that have been carefully chosen to be both accessible and significant. As part of the program, the students will write a research paper containing their results and give an oral presentation which will enhance their communication skills. The research experience will be complemented by several organized outings and social activities to encourage peer networking and bonding.
The three faculty mentors are all first-generation college students, including one female American Indian; they all had an undergraduate research experience that shaped their lives and careers and have taken nationally recognized courses in undergraduate pedagogy to pass that legacy on. It is intended that this summer program will show students that mathematical research can be both fun and interesting, with the hope that this experience paves the way to graduate studies. This proposal aims to recruit students from underrepresented groups; in particular, American Indians, women, and first generation college students.
Agency: NSF | Branch: Standard Grant | Program: | Phase: INFORMATION TECHNOLOGY RESEARC | Award Amount: 60.42K | Year: 2013
The method of Groebner bases has become one of the most important techniques in providing an exact solution of nonlinear problems in multivariate polynomial ideal theory, computational algebra and elimination theory, in solving systems of algebraic equations, and in many other related areas. It is also being fruitfully used in a variety of seemingly unrelated research areas such as geometric theorem proving, integer programming, solid modeling, and engineering.
This project will develop the theories and algorithms for an efficient framework of PSPACE Groebner basis computation in Boolean rings and then apply this framework to temporal logic reasoning and model checking. The theoretical and algorithmic results of this research should have a broader impact on symbolic computation, temporal logic reasoning and related areas such as automated verification of hardware and software in model checking. Symbolic computation is an active and rich area with enormous activity and progress in the last twenty years. A new approach to temporal logic reasoning and model checking making use of results from symbolic computation seems to have considerable promise, both as a supplement to existing methods and as a way to bring a large body of powerful mathematical machinery to bear on the model checking problem.
Agency: NSF | Branch: Continuing grant | Program: | Phase: SYMBIOSIS DEF & SELF RECOG | Award Amount: 300.00K | Year: 2016
This project will examine the roles that bacteria play in stabilizing the interactions among the so-called fungus-gardening ants and their farmed fungi. These ants are ecologically important members of desert and forest ecosystems throughout the southern US and tropical regions of North and South America. Understanding these organisms informs us how they influence and interact with their environment. Detailed studies and experiments in this project have important societal and scientific benefits. For example, some ant-fungal symbioses are important agricultural pests. Others are sources of antibiotics and antimicrobial compounds, while others serve as models for biofuel production. This research will train undergraduate and graduate students in experimental biology, microbiology and the analysis of large molecular datasets as well as increase the national and international exposure of students at a regional university in east Texas. Outreach activities include but are not limited to (a) construction of a living leaf-cutter ant exhibit at a local museum, (b) construction of interpretative exhibits in the UT Tyler Nature Preserve (c) the development of new courses at UT Tyler that emphasize connections between the environment, biomedicine and human health (d) participating and co-organizing the annual UT Tyler Darwin Day.
Symbioses (ecological associations of unrelated organisms living in close proximity) were and are crucial to the evolution and ecological success of all life on earth. One of the central issues facing the study of symbiosis is elucidating how symbioses are organized and function in a dynamic world. Fungus-gardening (attine) ants form an obligate macrosymbiosis with specific fungi that the ants grow for food, but also interact with a number of other bacteria and microfungal species. The attine symbiosis is an excellent model to address functional relationships because the ants and fungi can be experimentally disassembled and reassembled into novel combinations, thus making it possible to demonstrate links among colony and fungal performance and microbial community composition. Of particular interest in this project is the roles that the microbial communities (microbiomes) associated with attine ants and the fungi play in the maintenance of the ant-fungus community. The proposed experiments will examine how interactions with the microbiomes promote specificity and homeostasis with the various partners in this symbiosis. This discovery-based research will combine intensive field surveys, next generation sequencing, bioinformatics and experimental biology to examine the role of the bacterial communities in conferring stability between host ants and symbiotic fungi. As a result, this research has broad implications for understanding the evolution and maintenance of obligate symbioses.
Agency: NSF | Branch: Continuing grant | Program: | Phase: WORKFORCE IN THE MATHEMAT SCI | Award Amount: 258.74K | Year: 2014
This grant funds the REU site at the University of Texas at Tyler. The 8-week program will take place in the summers of 2014, 2015, and 2016. Each summer, nine REU students will work in groups of three with one faculty mentor leading each group. The mentors will provide research questions in combinatorics on words, network reliability, and chemical graph theory. Each group will spend the first weeks of the program learning basic theory pertaining to their research area. They will generate examples and formulate conjectures. During the middle of the program students will seek proofs of their conjectures. REU students will write their results in a professional format and prepare a final talk and a poster suitable for presentation at the Joint Mathematics Meetings in January.
The goal of the REU is to give students an introduction to mathematical research that will help prepare them for and encourage them to pursue PhDs in mathematics. The investigators believe that this program will have a greater effect by recruiting students from underrepresented groups; in particular, Hispanics, women, and first-generation college students. In addition to daily research, REU participants will attend talks by former research students who are currently enrolled in graduate school and by other local faculty. They will have the opportunity to ask questions about graduate school and academic careers. Students will keep a daily research journal, and they will learn mathematical typesetting. The REU projects have been carefully chosen to be accessible to undergraduates with basic training in proof writing, but with the potential to produce novel results. The results will be presented at national conferences. It is expected that some projects will result in publications in peer-reviewed journals.
Agency: NSF | Branch: Standard Grant | Program: | Phase: Smart and Connected Health | Award Amount: 144.75K | Year: 2016
In the United States, one in eight infants is born prematurely. These high risk infants require specialized monitoring of their physiology not only in Neonatal Intensive Care Units (NICU) but also in home environments. They are prone to apnea (pause in breathing), bradycardia (slowness of heart) and hypoxia (oxygen de-saturation), which are life threatening. This project aims at developing a biosensor system with wireless network for the remote detection and anticipation of such life threatening events in infants. The proposed research goes beyond traditional health monitoring systems by incorporating body sensor networks (BSN) along with advanced signal processing approaches, tailored specifically to an individual infants physiology, to accurately detect and anticipate precursors of life threatening events. The proposed research can have a significant impact on non-intrusive ambulatory health monitoring for infants through a wireless biosensor system that integrates lightweight sensor solutions into the sensing, communication, and computing for monitoring physiology. The system framework, theories, models, and code developed by this project can be used by researchers as well as engineers to evaluate the performance of infant monitoring applications. The project also includes: (1) disseminating the project information and knowledge to the academic community and industry; (2) engaging undergraduate, graduate and medical students, especially women and minorities, into the proposed research; and (3) developing new courses and revising the existing courses.
The current physiological monitoring systems used in NICU consist of relatively large sensors attached to the infants, which are then connected to a data acquisition system with multiple wires. These sensors along with the wires are a hindrance to the clinical care. In addition, the existing system cannot be used for home environments because of the size and cost. While there is an abundance of physiological signals streaming across NICU monitoring systems, it is challenging for clinicians caring for preterm infants to determine pathological states, as there is no method available to translate these signals into validated indices to define pathology. The primary objective of this proposed research is to explore whether a dedicated compact device with wearable biosensors along with wireless networks can be built for the detection and anticipation of life threatening events in infants in both NICU and home environments. The secondary objective is to explore whether computational tools that provide real-time indices of cardio-respiratory risk can be developed to assist clinicians for neonatal care. Specifically, the project is to develop a comprehensive system, involving four important components: (1) development of miniature biosensors that can be attached to infants who are very small and vulnerable; (2) development of wireless devices with efficient communication protocols that can transmit the physiological signals from the biosensors; (3) development of efficient signal processing algorithms that can extract useful information from the biosensor data for risk stratification and anticipation of life threatening events (data to knowledge to decisions) and (4) testing and validation of the systems in real life environment at NICU. The proposed approaches in the project can eventually lead to a medical device for the remote detection of life threatening events in infants and also provide guidelines for the design of wearable wireless biosensor systems for healthcare monitoring applications in general.