The University of Texas at Brownsville is an educational institution located in Brownsville, Texas. The university is on the land once occupied by Fort Brown. It is a member of the University of Texas System. The institution was formed from a partnership between Texas Southmost College and the University of Texas-Pan American at Brownsville. From 1991 to 2011, the University of Texas at Brownsville and Texas Southmost College became a substantial presence in South Texas education, providing unique opportunities for more than 17,000 students from Texas, as well as from Mexico and elsewhere. The partnership ended in 2011 as UTB became a standalone University of Texas institution, and Texas Southmost College returned to being an independent community college. UTB itself offers baccalaureate and an increasing number of graduate degrees in liberal arts, science, education, business, and professional programs designed to meet regional, national, and international needs.In 2015, the UT–Brownsville, originally an extension of then-Pan-American University at Texas Southmost College, will merge with the current UT–Pan American , a new medical school will be added, and the resulting institution will be named the University of Texas–Rio Grande Valley. Wikipedia.
Benacquista M.J.,University of Texas at Brownsville
Astrophysical Journal Letters | Year: 2011
The recently discovered J0651+2844 is a detached, eclipsing white dwarf binary with an orbital period of 765 s. We investigate the prospects for the detection of gravitational radiation from this system and estimate the effect of the tidal deformation of the low-mass component on the period evolution of the system. Because of the high inclination of the system, the amplitude of the gravitational waves at Earth will be as much as a factor of two lower than that from an optimally oriented system. The dominant contribution of tidal corrections to the period evolution comes from the increase in rotational energy of the components as they spin up to remain tied to the orbital period. This contribution results in an advance of the timing of the eclipses by an additional 0.3 s after one year. © 2011. The American Astronomical Society. All rights reserved.
James E.G.,University of Texas at Brownsville
Gait and Posture | Year: 2014
Prior research has shown that voluntary postural movement is characterized by stable in-phase and antiphase hip-ankle coordination modes. Prior modeling of coordination dynamics does not capture the stable fixed-points, phase transitions and hysteresis found in hip-ankle coordination. In this article a model was created to capture the dynamics of hip-ankle postural coordination. The present model follows the synergetic approach and uses two nonlinear oscillators to capture the dynamics of hip-ankle coordination. Terms for symmetry breaking and additive stochastic noise are included in the model. The model captures phase transitions from in-phase to antiphase coordination as movement frequency is scaled up and from antiphase to in-phase coordination as movement frequency is scaled down. The model also exhibits hysteresis, with phase transitions occurring at different movement frequencies as the control parameter is scaled up and down. © 2013 Elsevier B.V.
Sexton K.,University of Texas at Brownsville |
Linder S.H.,University of Houston
American Journal of Public Health | Year: 2011
Cumulative risk assessment is a science policy tool for organizing and analyzing information to examine, characterize, and possibly quantify combined threats from multiple environmental stressors. We briefly survey the state of the art regarding cumulative risk assessment, emphasizing challenges and complexities of moving beyond the current focus on chemical mixtures to incorporate nonchemical stressors, such as poverty and discrimination, into the assessment paradigm. Theoretical frameworks for integrating nonchemical stressors into cumulative risk assessments are discussed, the impact of geospatial issues on interpreting results of statistical analyses is described, and four assessment methods are used to illustrate the diversity of current approaches. Prospects for future progress depend on adequate research support as well as development and verification of appropriate analytic frameworks.
Hanke A.,University of Texas at Brownsville
Biochemical Society Transactions | Year: 2013
In the last two decades, single-molecule force measurements using optical and magnetic tweezers and atomic force spectroscopy have dramatically expanded our knowledge of nucleic acids and proteins. These techniques characterize the force on a biomolecule required to produce a given molecular extension. When stretching long DNA molecules, the observed force-extension relationship exhibits a characteristic plateau at approximately 65 pN where the DNA may be extended to almost twice its B-DNA length with almost no increase in force. In the present review, I describe this transition in terms of the Poland-Scheraga model and summarize recent related studies. © 2013 Biochemical Society.
Thrane E.,California Institute of Technology |
Romano J.D.,University of Texas at Brownsville
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2013
We propose a graphical representation of detector sensitivity curves for stochastic gravitational-wave backgrounds that takes into account the increase in sensitivity that comes from integrating over frequency in addition to integrating over time. This method is valid for backgrounds that have a power-law spectrum in the analysis band. We call these graphs "power-law integrated curves." For simplicity, we consider cross-correlation searches for unpolarized and isotropic stochastic backgrounds using two or more detectors. We apply our method to construct power-law integrated sensitivity curves for second-generation ground-based detectors such as Advanced LIGO, space-based detectors such as LISA and the Big Bang Observer, and timing residuals from a pulsar timing array. The code used to produce these plots is available at https://dcc.ligo.org/LIGO-P1300115/public for researchers interested in constructing similar sensitivity curves. © 2013 American Physical Society.