Edinburg, TX, United States

University of Texas–Pan American

Edinburg, TX, United States

The University of Texas–Pan American is a state university located in Edinburg, Texas. Founded in 1927, it is a component institution of the University of Texas System. The university serves the Rio Grande Valley and South Texas with baccalaureate, masters-level, and doctoral degrees. The Carnegie Foundation classifies UTPA as a "doctoral research university". Since the institution's founding, it has grown from 200 students to over 20,000, making UTPA the tenth-largest university in the state of Texas. The majority of these students are natives of the Rio Grande Valley. UTPA also operates an Upper Level Studies Center in Rio Grande City, Starr County, Texas. On August 15, 2014, Havidan Rodriguez was appointed Interim President of UTPA.In 2015, the UT–Brownsville, founded as an extension of then-Pan-American University at Texas Southmost College, will merge with UTPA, a new medical school will be added, and the resulting institution will be named the University of Texas–Rio Grande Valley.On November 5, 2014, UTRGV's new nickname of Vaqueros was announced.Almost immediately, students on both campuses began objecting to the new name as a caricature and racial stereotype of Mexican, Latino, Chicano, and Hispanic culture. Two days after the new mascot was approved, the UTPA student government passed a resolution in opposition, and three days later, hundreds of students rallied on the Edinburg campus to protest the new name. Wikipedia.

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Worthey G.,Washington State University | Lee H.-C.,University of Texas–Pan American
Astrophysical Journal, Supplement Series | Year: 2011

A collection of Johnson/Cousins photometry for stars with known [Fe/H] is used to generate color-color relations that include the abundance dependence. Literature temperature and bolometric correction (BC) dependences are attached to the color relations. The JHK colors are transformed to the Bessell & Brett homogenized system. The main result of this work is the tabulation of seven colors and the V-band BC as a function of T eff, log g, and [Fe/H] for -1.06 < V - K < 10.2 and an accompanying interpolation program. Improvements to the present calibration would involve filling photometry gaps, obtaining more accurate and on-system photometry, knowing better log g and [Fe/H] values, improving the statistics for data-impoverished groups of stars such as metal-poor K dwarfs, applying small tweaks in the processing pipeline, and obtaining better empirical temperature and BC relations, especially for supergiants and M stars. A way to estimate dust extinction from M dwarf colors is pointed out. © 2011. The American Astronomical Society. All rights reserved.

Dong W.,University of Texas–Pan American
IEEE Transactions on Robotics | Year: 2012

This paper considers the tracking control problem for a group of nonholonomic wheeled mobile robots with limited information of a desired trajectory. With the aid of communications between systems, distributed control laws are proposed such that the state of each mobile robot asymptotically tracks the desired trajectory. To show the effectiveness of the proposed approach, simulation results are presented. © 2006 IEEE.

Gilkerson R.,University of Texas–Pan American
Cold Spring Harbor perspectives in biology | Year: 2013

The packaging of mitochondrial DNA (mtDNA) into DNA-protein assemblies called nucleoids provides an efficient segregating unit of mtDNA, coordinating mtDNA's involvement in cellular metabolism. From the early discovery of mtDNA as "extranuclear" genetic material, its organization into nucleoids and integration into both the mitochondrial organellar network and the cell at large via a variety of signal transduction pathways, mtDNA is a crucial component of the cell's homeostatic network. The mitochondrial nucleoid is composed of a set of DNA-binding core proteins involved in mtDNA maintenance and transcription, and a range of peripheral factors, which are components of signaling pathways controlling mitochondrial biogenesis, metabolism, apoptosis, and retrograde mitochondria-to-nucleus signaling. The molecular interactions of nucleoid components with the organellar network and cellular signaling pathways provide exciting clues to the dynamic integration of mtDNA into cellular metabolic homeostasis.

Dong W.,University of Texas–Pan American
Automatica | Year: 2011

This paper considers the consensus problem of multiple uncertain mechanical systems with a desired trajectory as an agreement vector. In the consensus problem, a desired trajectory is available to a portion of a group of mechanical systems. Distributed adaptive/robust control laws are proposed such that the state of each system asymptotically converges to the desired trajectory with the aid of information interchange between systems. Simulation results show effectiveness of the proposed controllers. © 2011 Elsevier Ltd. All rights reserved.

Midha V.,University of Texas–Pan American
Decision Support Systems | Year: 2012

Consumer empowerment is a psychological construct related to the individual's perception of the extent to which he/she can control the distribution and use of his/her personally identifying information. It has been argued to have an impact on consumers' privacy concerns and trust in e-commerce. However, very little is known about the difference in male and female perceptions of this control. This investigation is focused on examining how perceptions between the genders differ concerning consumer empowerment and privacy concerns, and how the consumer empowerment results in perceptions of trust and decrease in privacy concerns. We test our proposed hypotheses using data collected from 322 experienced online consumers. Our results show that empowerment has a stronger positive effect on trust for males than for females, and that privacy concerns have stronger negative impact on trust for females than for males. © 2012 Elsevier B.V. All rights reserved.

Dong W.,University of Texas–Pan American
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics | Year: 2011

This paper considers the flocking of multiple nonholonomic wheeled mobile robots. Distributed controllers are proposed with the aid of backstepping techniques, results from graph theory, and singular perturbation theory. The proposed controllers can make the states of a group of robots converge to a desired geometric pattern whose centroid moves along a desired trajectory under the condition that the desired trajectory is available to a portion of the group of robots. Since communication delay is inevitable in distributed control, its effect on the performance of the closed-loop systems is analyzed. It is shown that the proposed controllers work well if communication delays are constant. To show effectiveness of the proposed controllers, simulation results are included. © 2006 IEEE.

Feng B.-F.,University of Texas–Pan American
Physica D: Nonlinear Phenomena | Year: 2015

In the present paper, we propose a complex short pulse equation and a coupled complex short equation to describe ultra-short pulse propagation in optical fibers. They are integrable due to the existence of Lax pairs and infinite number of conservation laws. Furthermore, we find their multi-soliton solutions in terms of pfaffians by virtue of Hirota's bilinear method. One- and two-soliton solutions are investigated in details, showing favorable properties in modeling ultra-short pulses with a few optical cycles. Especially, same as the coupled nonlinear Schrödinger equation, there is an interesting phenomenon of energy redistribution in soliton interactions. It is expected that, for the ultra-short pulses, the complex and coupled complex short pulses equation will play the same roles as the nonlinear Schrödinger equation and coupled nonlinear Schrödinger equation. © 2014 Elsevier B.V. All rights reserved.

Osatuyi B.,University of Texas–Pan American
Computers in Human Behavior | Year: 2013

This study reports on an exploratory survey conducted to investigate the use of social media technologies for sharing information. This paper explores the issue of credibility of the information shared in the context of computer-mediated communication. Four categories of information were explored: sensitive, sensational, political and casual information, across five popular social media technologies: social networking sites, micro-blogging sites, wikis, online forums, and online blogs. One hundred and fourteen active users of social media technologies participated in the study. The exploratory analysis conducted in this study revealed that information producers use different cues to indicate credibility of the information they share on different social media sites. Organizations can leverage findings from this study to improve targeted engagement with their customers. The operationalization of how information credibility is codified by information producers contributes to knowledge in social media research. © 2013 Elsevier Ltd. All rights reserved.

Brotzge J.,University of Oklahoma | Donner W.,University of Texas–Pan American
Bulletin of the American Meteorological Society | Year: 2013

A review of the entire tornado warning system, from prediction and detection to public response, is discussed. As high-resolution, convection-allowing numerical weather prediction (NWP) becomes more accurate at longer time scales, multivariate model output may be used to a greater extent in identifying and predicting tornado outbreak events. All official NWS tornado warnings are issued based upon detections, where an immediate tornado threat is observed either directly by spotters and media or inferred from observations. However, as the accuracy and precision of short-term storm predictions continue to improve, model output is expected to become an increasingly important basis upon which to issue NWS tornado warnings. Weather radar is the primary tool used by warning forecasters to identify areas of potential tornado development. Next Generation Weather Radar (NEXRAD) deployment had an immediate and significant positive impact on tornado warning statistics.

Feng B.-F.,University of Texas–Pan American
Journal of Physics A: Mathematical and Theoretical | Year: 2014

We consider a general N-soliton solution to a vector nonlinear Schrödinger (NLS) equation of all possible combinations of nonlinearities including all-focusing, all-defocusing and mixed types. Based on the KP hierarchy reduction method, we firstly construct general two-bright-one-dark and one-bright-two-dark soliton solutions in a three-coupled NLS equation, then we extend our analysis to a vector NLS equation to obtain a general N-soliton solution in Gram determinant form. This formula unifies the bright, dark and bright-dark soliton solutions, which have been widely studied in the literature. The conditions for the existence of all types of soliton solutions with all possible combinations of nonlinearities are elucidated. © 2014 IOP Publishing Ltd.

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