Digital Commons Network^™

Rapid Evolution In Introduced Species, ‘Invasive Traits’ And Recipient Communities: Challenges For Predicting Invasive Potential, Kenneth D. Whitney, Christopher A. Gabler

School of Earth, Environmental, & Marine Sciences Faculty Publications

The damaging effects of invasive organisms have triggered the development of Invasive Species Predictive Schemes (ISPS). These schemes evaluate biological and historical characteristics of species and prioritize those that should be the focus of exclusion, quarantine, and/or control. However, it is not clear how commonly these schemes take microevolutionary considerations into account. We review the recent literature and find that rapid evolutionary changes are common during invasions. These evolutionary changes include rapid adaptation of invaders to new environments, effects of hybridization, and evolution in recipient communities. Strikingly, we document 38 species in which the specific traits commonly associated with invasive …

The Collegian (2008-04-14), Isis Lopez

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 60, No. 26

Los Arcos - Spring 2008, University Of Texas-Pan American

UTPA Archives - Los Arcos Magazine

No abstract provided.

Utpa Commencement – Spring 2008, University Of Texas-Pan American

Edinburg Archives - Legacy Commencement Programs

No abstract provided.

Utb/Tsc Commencement – Spring 2008, University Of Texas At Brownsville, Texas Southmost College

Brownsville Archives - Legacy Commencement Programs

No abstract provided.

International Strategic Alliances: Identifying Objective Performance Measures, Russell P. Adams, Clara Downey

International Business and Entrepreneurship Faculty Publications

With the acceleration of globalization, International Strategic Alliances (ISA) are increasingly playing a critical role in a firm’s strategic arsenal. Despite its importance, measuring an ISA’s success is difficult due to the reticence of failing partnerships to announce these issues. This paper presents an analysis of 29 alliances from 18 countries and 5 industries. The success or failure of these alliances was analyzed utilizing ROA, ROE, ROI, and operating margin as the variables of performance measurement. Discriminant Analysis demonstrates that operating margin correctly classifies the success of an alliance 70% of the time.

Comparison Of Polymerase Chain Reaction And Bacterial Culture For Salmonella Detection In The Muscovy Duck In Trinidad And Tobago, Joanne Rampersad-Ammons, Jenelle Johnson, Gabriel Brown, Michael S. Samlal, David R. Ammons

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Chemistry)

Objectives: The purpose of this study was to investigate the presence and serovar identity of Salmonella, at the national level, in farmed Muscovy ducks (Cairina moschata) in Trinidad and Tobago, and to compare the relative benefits of bacterial culture to those of polymerase chain reaction (PCR) for use in the routine detection and surveillance of Salmonella in these ducks.

Methods: From March-September 2003, 110 fecal samples were collected from 82 farms across the islands of Trinidad and Tobago. Salmonella was isolated from fresh and frozen samples and the serotype of each was determined through bacterial culture. An in-house, nested PCR …

The Collegian (2008-03-24), Isis Lopez

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 60, No. 24

The Pan American (2008-03-20), Sandra Gonzalez

UTPA Archives - The Pan American Newspaper

59th Year, No. 23

The Collegian (2008-03-17), Isis Lopez

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 60, No. 23

The Collegian (2008-02-25), Isis Lopez

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 60, No. 21

Arecibo H I Absorption Measurements Of Pulsars And The Electron Density At Intermediate Longitudes In The First Galactic Quadrant, J. M. Weisberg, S. Stanimirović, K. Xilouris, A. Hedden, A. De La Fuente, S. B. Anderson, F. A. Jenet

Physics & Astronomy Faculty Publications

We have used the Arecibo telescope to measure the H I absorption spectra of eight pulsars. We show how kinematic distance measurements depend on the values of the Galactic constants R0 and Θ0, and we select our preferred current values from the literature. We then derive kinematic distances for the low-latitude pulsars in our sample and electron densities along their lines of sight. We combine these measurements with all others in the inner Galactic plane visible from Arecibo to study the electron density in this region. The electron density in the interarm range 48° < l < 70° is 0.017-0.007+0.012(68% c.1.) cm-3. This is 0.75-0.22+0.49(68% c.1.) of the value calculated by the Galactic electron density model of Cordes & Lazio. The model agrees more closely with electron density measurements toward Arecibo pulsars lying closer to the Galactic center, at 30° < l < 48°. Our analysis leads to the best current estimate of the distance of the relativistic binary pulsar B1913+16: d = 9.0 ± 3 kpc We use the high-latitude pulsars to search for small-scale structure in the interstellar hydrogen observed in absorption over multiple epochs. PSR B0301+19 exhibited significant changes in its absorption spectrum over 22 yr, indicating H I structure on a ∼500 AU scale. © 2008. The American Astronomical Society. All rights reserved.

The Pan American (2008-02-07), Sandra Gonzalez

UTPA Archives - The Pan American Newspaper

59th Year, No. 18

The Collegian (2008-02-04), Isis Lopez

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 60, No. 18

Cooperative Learning, Jigsaw Strategies, And Reflections Of Graduate And Undergraduate Education Students, Bobbette M. Morgan, Alma D. Rodríguez, Graciela P. Rosenberg

Teaching and Learning Faculty Publications

Classes of undergraduate and graduate students assigned to three professors were used to experience cooperative learning, jigsaw strategies, and to reflect on the process that occurred over a semester. The work is based upon theories of social interdependence, cognitive development, and behavioral learning. Pre- and post surveys were completed by 23 graduate and 57 undergraduate education students to compare and contrast knowledge about their experiences working cooperatively and specifically in a jigsaw format that included the role of expert, preparation pairs, and in groups of three where positive interdependence is structured through resource interdependence with a summary by the professor. …

The Pan American (2008-01-14), Sandra Gonzalez

UTPA Archives - The Pan American Newspaper

59th Year, No. 15

Imagining More: Strategic Plan 2008-2012, University Of Texas At Brownsville

UTB/TSC Archives - Factbooks & Brochures

No abstract provided.

Collection Of Works By Faculty And Staff - 2008, University Of Texas At Brownsville

Digital Books

This annual publication provides a listing of books, journals, videocassettes, compact discs, and software produced by various faculty and staff of the former University of Texas at Brownsville.

Utb/Tsc Student Handbook 2008-2009, University Of Texas At Brownsville, Texas Southmost College

Student Handbooks (UTB/UTPA)

No abstract provided.

Orange & White - Winter 2008, University Of Texas At Brownsville, Texas Southmost College

UTB/TSC Archives - Orange & White Magazine

No abstract provided.

Utb/Tsc Commencement - Winter 2008, University Of Texas At Brownsville, Texas Southmost College

Brownsville Archives - Legacy Commencement Programs

No abstract provided.

The Soul Of Classical American Philosophy: The Ethical And Spiritual Insights Of William James, Josiah Royce, And Charles Sanders Peirce By: Richard P. Mullin (Review), Alexander Stehn

Philosophy Faculty Publications

Sharing William James’ conviction that “no one of us can get along without the far-reaching beams of light [philosophy] sends over the world’s perspectives” (qtd. on xi), Richard Mullin’s new book seeks to communicate the ethical and spiritual insights of William James, Josiah Royce, and Charles Sanders Peirce to a non-specialist audience. Mullin follows the pragmatists he studies by dropping the traditional, dualistic notion of “soul” while insisting upon the importance of carefully attending to the following issues classically treated as pertaining thereto: the self, free will, moral values, community, and our relationship with the Transcendent (xi). With the pragmatic …

Teachers Of Latino Students Reflect On The Implementation Of A Mathematical Task, Leslie H. Kahn, Sandra I. Musanti, Laura Kondek Mcleman, José María Menéndez-Gómez, Barbara Trujillo

Bilingual and Literacy Studies Faculty Publications

Teachers in two multi-grade study groups in elementary schools with large populations of Latino students reflect on the implementation of an open-ended mathematical task. IN this research, interviews and study group discussions provide the teachers’ reflections on the implementation of the task and on their practices in general that create learning environments for their Latino students. Multiple categories representing the teacher reflections were developed and our focus is on those practices that teachers consider effective and specific factors that impact practice. The design of this study proved to be especially useful in promoting teacher reflective conversation.

An Analysis Of Demographic Disparities Associated With The Proposed U.S.-Mexico Border Fence In Cameron County, Texas, J. Gaines Wilson, Jude A. Benavides, E. Anthony Reisinger, Joseph Lemen, Zachary Hurwitz, Jessica Spangler, Karen Engle

School of Earth, Environmental, & Marine Sciences Faculty Publications

Introduction: The United States Department of Homeland Security (DHS) plans to install a fence along the U.S.-Mexico border by late December 2008. While much attention has been drawn to the environmental, social and political issues surrounding the fence, analysis of demographic data on the populations that will be directly affected has been limited. This paper utilizes geographic information systems (GIS) and U.S. Census Bureau data with the objective of understanding the underlying demographics in areas along the proposed Rio Grande Valley section of the border fence located in Cameron County, Texas.

Data and Methods: Demographic measures of income, education, …

Physiological Aging Of Potato Tubers Produced During Fall And Spring Growing Seasons And Stored Under Different Temperatures, Dilson A. Bisognin, Sergio T. De Freitas, Auri Brackmann, Jeronimo Luiz Andriolo, Engil Isadora Pujol Pereira, Douglas Renator Muller, Mauricio Guerra Bandinelli

School of Earth, Environmental, & Marine Sciences Faculty Publications

Adequate tuber storage is necessary to maintain a good availability of potato tubers in the market and to get seeds with adequate physiological age at planting. The objective of this work was to determine the effect of different storage temperatures on tuber physiological aging of three potato clones produced during fall and spring growing seasons. The experiment was carried out as factorial of three clones (Asterix, SMIJ461-1 and SMINIA793101-3) by four storage temperatures (4, 8, 12 and 25 ºC) and two growing seasons (fall and spring) in a random design with four replications. At 30-day intervals, tubers were evaluated from …

Rapid Evolution In Introduced Species, ‘Invasive Traits’ And Recipient Communities: Challenges For Predicting Invasive Potential, Kenneth D. Whitney, Christopher A. Gabler

School of Earth, Environmental, & Marine Sciences Faculty Publications

The damaging effects of invasive organisms have triggered the development of Invasive Species Predictive Schemes (ISPS). These schemes evaluate biological and historical characteristics of species and prioritize those that should be the focus of exclusion, quarantine, and/or control. However, it is not clear how commonly these schemes take microevolutionary considerations into account. We review the recent literature and find that rapid evolutionary changes are common during invasions. These evolutionary changes include rapid adaptation of invaders to new environments, effects of hybridization, and evolution in recipient communities. Strikingly, we document 38 species in which the specific traits commonly associated with invasive …

An Action For A Classical String, The Equation Of Motion And Group Invariant Classical Solutions, Paul Bracken

School of Mathematical & Statistical Sciences Faculty Publications

A string action which is essentially a Willmore functional is presented and studied. This action determines the physics of a surface in Euclidean three space which can be used to model classical string configurations. By varying this action an equation of motion for the mean curvature of the surface is obtained which is shown to govern certain classical string configurations. Several classes of classical solutions for this equation are discussed from the symmetry group point of view and an application is presented.

Splitting Np-Complete Sets, Christian Glaßer, A. Pavan, Alan L. Selman, Liyu Zhang

Computer Science Faculty Publications

We show that a set is m-autoreducible if and only if it is m-mitotic. This solves a long-standing open question in a surprising way. As a consequence of this unconditional result and recent work by Glaßer et al., complete sets for all of the following complexity classes are m-mitotic: NP, coNP, ⊕P, PSPACE, and NEXP, as well as all levels of PH, MODPH, and the Boolean hierarchy over NP. In the cases of NP, PSPACE, NEXP, and PH, this at once answers several well-studied open questions. These results tell us that complete sets share a redundancy that was not known …

A Fragment On Euler's Constant In Ramanujan's Lost Notebook, Bruce C. Berndt, Timothy Huber

School of Mathematical & Statistical Sciences Faculty Publications

A formula for Euler’s constant found in Ramanujan’s lost notebook and also in a problem he submitted to the Journal of the Indian Mathematical Society is proved and discussed.

Quantum Phases For A Generalized Harmonic Oscillator, Paul Bracken

School of Mathematical & Statistical Sciences Faculty Publications

An effective Hamiltonian for the generalized harmonic oscillator is determined by using squeezed state wavefunctions. The equations of motion over an extended phase space are determined and then solved perturbatively for a specific choice of the oscillator parameters. These results are used to calculate the dynamic and geometric phases for the generalized oscillator with this choice of parameters.