Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Sciences and Mathematics (3140)
- Astrophysics and Astronomy (833)
- Mathematics (810)
- Education (655)
- Physics (655)
-
- Environmental Sciences (597)
- Life Sciences (550)
- Earth Sciences (519)
- Chemistry (402)
- Engineering (379)
- Computer Sciences (345)
- Medicine and Health Sciences (345)
- Higher Education (298)
- Marine Biology (292)
- Mechanical Engineering (202)
- Arts and Humanities (151)
- Social and Behavioral Sciences (123)
- Business (83)
- Biology (82)
- Educational Leadership (81)
- Public Health (81)
- Science and Mathematics Education (70)
- Electrical and Computer Engineering (66)
- Curriculum and Instruction (64)
- Plant Sciences (60)
- Agriculture (59)
- Civil and Environmental Engineering (59)
- History (56)
- Manufacturing (55)
- Applied Mathematics (54)
- Keyword
-
- College student newspapers and periodicals (333)
- Newspaper (242)
- Student Media (242)
- Student organizations (242)
- Applied sciences (177)
-
- Pure sciences (146)
- Course catalogs (135)
- Curriculum catalogs (135)
- 2010-2019 (108)
- Texas--Edinburg (106)
- Education (102)
- University of Texas Rio Grande Valley (100)
- Commencement ceremonies (96)
- Graduation ceremonies (96)
- University of Texas at Brownsville (95)
- Texas Southmost College (84)
- 2000-2009 (62)
- Texas--Brownsville (51)
- Biological sciences (47)
- Texas (46)
- Newsletters (43)
- 2020-2029 (41)
- Machine learning (41)
- Health and environmental sciences (40)
- University of Texas--Pan American (40)
- Social sciences (39)
- Gravitational waves (37)
- Pan American University (36)
- 1990-1999 (31)
- The University of Texas Pan American (31)
- Publication Year
- Publication
-
- Physics & Astronomy Faculty Publications (835)
- Theses and Dissertations (723)
- School of Mathematical & Statistical Sciences Faculty Publications (660)
- School of Earth, Environmental, & Marine Sciences Faculty Publications (432)
- Theses and Dissertations - UTB/UTPA (320)
-
- School of Integrative Biological & Chemical Sciences (Formerly Dept. of Chemistry) (245)
- UTB/TSC Archives - The Collegian [Newspaper] (245)
- UTPA Archives - The Pan American Newspaper (242)
- Computer Science Faculty Publications (181)
- The Rider Archives (109)
- School of Medicine Publications (92)
- UTPA Archives - Course Catalogs (85)
- Mechanical Engineering Faculty Publications (84)
- Teaching and Learning Faculty Publications (76)
- UTB/TSC Archives - Course Catalogs (57)
- Edinburg Archives - Legacy Commencement Programs (47)
- Brownsville Archives - Legacy Commencement Programs (41)
- School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology) (37)
- Bilingual and Literacy Studies Faculty Publications (35)
- School of Integrative Biological & Chemical Sciences Faculty Publications (35)
- UTB/TSC Archives - Orange & White Magazine (35)
- Information Systems Faculty Publications (33)
- UTB/TSC Archives - This Week Newsletter (33)
- Civil Engineering Faculty Publications (32)
- Electrical and Computer Engineering Faculty Publications (27)
- Research Symposium (27)
- UTPA Archives - Stats At A Glance (25)
- Health & Biomedical Sciences Faculty Publications (23)
- School of Economics and Finance Faculty Publications (23)
- UTB/TSC Faculty Senate Minutes (22)
- Publication Type
- File Type
Articles 151 - 180 of 5231
Full-Text Articles in Entire DC Network
Emergent Storylines That Influence Positions And Mathematical Status In Collaborative Small-Group Proof Activity, Brittney M. Ellis, Tenchita Alzaga Elizondo
Emergent Storylines That Influence Positions And Mathematical Status In Collaborative Small-Group Proof Activity, Brittney M. Ellis, Tenchita Alzaga Elizondo
School of Mathematical & Statistical Sciences Faculty Publications
In this paper, we used positioning theory to examine storylines that emerged in students’ discourse as they collaborated on a proof construction task. We purposefully selected a case of group work from an inquiry-oriented introduction to proof course as prior analyses showed it was highly collaborative (Alzaga Elizondo, 2022), yet power dynamics seemed unbalanced. We hypothesized that positioning theory could provide a useful lens to interrogate such power dynamics. Through this analysis, we identified several implicit storylines that influenced the interaction related to the nature of proofs, the nature of mathematics, writing proofs, the role of an external authority, …
Molecular Adaptation Of Sweet Potato To Martian Soil Simulant: Insights From Mrna And Long Non-Coding Rna Analyses, Subramanyam Reddy Chinreddy, Karthik Chinnannan, Purushothaman Natarajan, Vaibhavi Patel, Gwonjin Lee, Manohar Chakrabarti, Padma Nimmakayala, Umesh K. Reddy
Molecular Adaptation Of Sweet Potato To Martian Soil Simulant: Insights From Mrna And Long Non-Coding Rna Analyses, Subramanyam Reddy Chinreddy, Karthik Chinnannan, Purushothaman Natarajan, Vaibhavi Patel, Gwonjin Lee, Manohar Chakrabarti, Padma Nimmakayala, Umesh K. Reddy
School of Integrative Biological & Chemical Sciences Faculty Publications
Introduction: Understanding how crops adapt to extraterrestrial environments is essential for sustainable space agriculture. Sweet potato (Ipomoea batatas), a nutritionally rich and stress-resilient crop, is a promising candidate for cultivation under Martian-like conditions, characterized by high salinity, heavy metal contamination, and poor water retention.
Objective: This study aimed to elucidate the molecular mechanisms underlying sweet potato adaptation to Martian soil analog conditions using Mars Global Simulant-1 (MGS-1).
Methods: Leaf, shoot, and storage root tissues of sweet potato grown in MGS-1 were subjected to RNA sequencing. Differentially expressed mRNAs and long non-coding RNAs (lncRNAs) were identified, and functional enrichment analyses were …
High Germinability Can Facilitate Recovery Of Adelia Vaseyi (Euphorbiaceae), An Imperiled Tamaulipan Thornscrub Shrub, Saroj Dhakal, Bashira Chowdhury, Alejandro Fierro-Cabo
High Germinability Can Facilitate Recovery Of Adelia Vaseyi (Euphorbiaceae), An Imperiled Tamaulipan Thornscrub Shrub, Saroj Dhakal, Bashira Chowdhury, Alejandro Fierro-Cabo
School of Earth, Environmental, & Marine Sciences Faculty Publications
While critical to maintaining dryland biodiversity and drought resilience, reforestation has been limited in subtropical dry forests because of knowledge gaps in seed biology that must be filled to upscale seedling production and ensure recovery of imperiled endemic plants. We characterized seed germination, dormancy, and storage needs for Adelia vaseyi, a threatened endemic shrub commonly included in planting mixes to restore Tamaulipan thornscrub, an imperiled subtropical forest spanning South Texas and Northeastern Mexico. We found A. vaseyi seeds have high germinability (82.0%) and a short mean germination time (3.04 ± 0.08 days). A delia vaseyi seed does not appear …
What It Takes To Solve The Origins Of Life: An Integrated Review. Part 2: Theoretical Methods And Emerging Trends, Silke Asche, Carla Bautista, Celia Blanco, David Boulesteix, Alexandre Champagne-Ruel, Cole Mathis, Omer Markovitch, Zheng Peng, Avinash Vicholous Dass, Eloi Camprubi
What It Takes To Solve The Origins Of Life: An Integrated Review. Part 2: Theoretical Methods And Emerging Trends, Silke Asche, Carla Bautista, Celia Blanco, David Boulesteix, Alexandre Champagne-Ruel, Cole Mathis, Omer Markovitch, Zheng Peng, Avinash Vicholous Dass, Eloi Camprubi
School of Integrative Biological & Chemical Sciences Faculty Publications
The origin(s) of life (OoL), which has puzzled scientists for centuries, remains a major scientific challenge in the 21st century. Understanding the processes relevant to the OoL demands theoretical frameworks that can connect processes across scales, from microscopic dynamics to emergent levels of organization. While experimental studies generate a wealth of data, theoretical and computational approaches provide the structure necessary to interpret and generalize these findings. In Part 1, we examined the most widely used experimental techniques in the field. Here, we focus on the mathematical, physical, and computational techniques used to model phenomena relevant to life’s origin(s). We discuss …
Brown Pelican (Pelecanus Occidentalis) Groundings On A Four-Lane Divided Highway In South Texas: A Comparative Study Using Citizen Science, Bradley Evan Beer, Kevin W. Ryer, Md. Saydur Rahman, John H. Young Jr., Richard J. Kline
Brown Pelican (Pelecanus Occidentalis) Groundings On A Four-Lane Divided Highway In South Texas: A Comparative Study Using Citizen Science, Bradley Evan Beer, Kevin W. Ryer, Md. Saydur Rahman, John H. Young Jr., Richard J. Kline
School of Integrative Biological & Chemical Sciences Faculty Publications
The population of the once-endangered brown pelican (Pelecanus occidentalis) has increased over the past several decades and is now considered fully recovered. However, in south Texas, the combined effects of weather patterns, transportation infrastructure, and brown pelican biology have led to road mortalities on State Highway 48 (SH 48) at the Carl “Joe” Gayman Bridge. To mitigate these mortalities, the Texas Department of Transportation modified traffic barriers on SH 48. We aimed to examine the effect of the barrier change and determine which weather variables influence brown pelican groundings on SH 48. Citizen scientists monitored sections of SH …
Applications Of Machine Learning In Enhancing Evaporation Estimation For Small Reservoirs: A Case Study In Semi-Arid South Texas, Syed Muhammad F Abdullah, Chu-Lin Cheng, Jude A. Benavides, Jungseok Ho, Rafael M. Almeida
Applications Of Machine Learning In Enhancing Evaporation Estimation For Small Reservoirs: A Case Study In Semi-Arid South Texas, Syed Muhammad F Abdullah, Chu-Lin Cheng, Jude A. Benavides, Jungseok Ho, Rafael M. Almeida
School of Earth, Environmental, & Marine Sciences Faculty Publications
Small reservoirs in semi-arid regions experience substantial evaporative losses but are rarely monitored at daily scales. A multi-reservoir machine learning (ML) framework was developed to estimate daily open-water evaporation. Empirical models (Penman, Penman-Monteith, Priestley-Taylor, Bowen Ratio Energy Budget) andabenchmark combination method (Daily Lake Evaporation Model-DLEM) were compared against ML models. Predictors combined gridded meteorology (gridMET) with reservoir attributes (surface area, average depth, maximum depth, and fetch). ML models (Random Forest-RF, Decision Tree-DT, K-Nearest Neighbor-KNN, and Support Vector Regression-SVR) were trained on four reservoirs using data from 2018 to 2025. Results from ML models were further validated using both DLEM and …
Hispanic Students As Environmental Scientists: Culturally Sustaining Stem Pathways Through Raíces Y Ciencia, Uma Ganesan
Hispanic Students As Environmental Scientists: Culturally Sustaining Stem Pathways Through Raíces Y Ciencia, Uma Ganesan
Teaching and Learning Faculty Publications
This study examines how culturally and linguistically sustaining environmental STEM education (CLSE-STEM) fostered student agency and environmental consciousness among Hispanic/Latinx students in Rio Grande Valley border schools. Through qualitative analysis of the Raíces y Ciencia project's water quality investigations, the research explored how teachers integrated students' cultural and linguistic resources with environmental science learning. Data from conference panel presentations, educator surveys, and classroom artifacts revealed three key themes: linguistic border-crossing as scientific understanding pathways, connecting family knowledge to environmental justice advocacy, and positioning students as community researchers. Findings demonstrate that centering Hispanic students' cultural assets while addressing local water quality …
What It Takes To Solve The Origin Of Life: An Integrated Review. Part 1–Experimental Methods And Data Repositories, Silke Asche, Carla Bautista, Celia Blanco, David Boulesteix, Alexandre Champagne-Ruel, Cole Mathis, Omer Markovitch, Zhen Peng, Avinash Vicholous Dass, Eloi Camprubi
What It Takes To Solve The Origin Of Life: An Integrated Review. Part 1–Experimental Methods And Data Repositories, Silke Asche, Carla Bautista, Celia Blanco, David Boulesteix, Alexandre Champagne-Ruel, Cole Mathis, Omer Markovitch, Zhen Peng, Avinash Vicholous Dass, Eloi Camprubi
School of Integrative Biological & Chemical Sciences Faculty Publications
The origin(s) of life (OoL), which has puzzled scientists for centuries, remains a major scientific challenge in the 21st century. Research on OoL spans many disciplines, including chemistry, physics, biology, planetary sciences, computer science, and mathematics. The sheer number of different scientific perspectives relevant to the problem has resulted in the coexistence of diverse tools, techniques, data, and software in OoL studies. This has made communication between the disciplines relevant to the OoL extremely difficult because the interpretation of data, analyses, or standards of evidence varies dramatically. Here, we hope to bridge this wide field of study by providing common …
Spatial Future Ahead! Augmented Reality And Anticipated Life Consequences, Sergio Barta, Reto Felix, Chris Hinsch, Mahdokht Kalantari, Nina Krey, Philipp A. Rauschnabel
Spatial Future Ahead! Augmented Reality And Anticipated Life Consequences, Sergio Barta, Reto Felix, Chris Hinsch, Mahdokht Kalantari, Nina Krey, Philipp A. Rauschnabel
Marketing Faculty Publications
Purpose: This study explores how initial exposure to immersive spatial computing experiences using AR headsets generates lasting inspiration and shapes consumers expected long-term life consequences (i.e., enhancement of reality, perceived substitutability and social impact).
Design/methodology/approach: The study uses a time-lagged research design based on 148 first-time users of spatial computing devices (AR headsets). Respondents were interviewed once shortly after being exposed to AR and a few days later. Data is analyzed using partial least squares structural equation modeling (PLS-SEM).
Findings: Users' immediate “inspired-by” experiences predict increased “inspired-to” intentions days later. Such inspiration translates into anticipated consequences such as virtually customizing …
Morphology, Phylogeny And Distribution Of Scaeurgus (Cephalopoda: Octopoda) In Southeast Pacific Seamounts, Sergio A. Carrasco, Christian M. Ibáñez, Andrea I. Varela, Jan M. Tapia-Guerra, Erin E. Easton, Javier Sellanes
Morphology, Phylogeny And Distribution Of Scaeurgus (Cephalopoda: Octopoda) In Southeast Pacific Seamounts, Sergio A. Carrasco, Christian M. Ibáñez, Andrea I. Varela, Jan M. Tapia-Guerra, Erin E. Easton, Javier Sellanes
School of Earth, Environmental, & Marine Sciences Faculty Publications
Octopuses of the genus Scaeurgus inhabit upper bathyal benthic habitats and are composed of five recognized species. In this study, we conducted morphological and molecular phylogenetic analyses of two individuals of Scaeurgus and provided additional field observations of the genus in seamounts of the Nazca and Salas y Gómez ridges (southeast Pacific Ocean) over the last six years. Specifically, two specimens of Scaeurgus were collected at 234 m depth in 2019 during the EPIC oceanographic cruise onboard the R/V Mirai (JAMSTEC, Japan), and five other specimens were video recorded at depths between 210 and 340 m during three oceanographic expeditions …
Short-Term Electricity Price Forecasting With Constrained Regressors, Mucun Sun, Li Zhang, Yifeng Gao
Short-Term Electricity Price Forecasting With Constrained Regressors, Mucun Sun, Li Zhang, Yifeng Gao
Computer Science Faculty Publications
The volatility of electricity price presents a challenge to market participants as their decision-making process are highly depend on the accuracy of price forecasts. However, there is growing empirical evidence of increasing price volatility and price spikes in electricity markets as a result of variable renewable energy generation, extreme weather events, and other factors. The distribution shift caused by spikes in electricity price data differentiates the forecasting tasks from other renewable energy sources. Moreover, the observations may be compromised by cyberattacks and thus not available in the testing phase. To this end, we propose a Similarity-Enhanced Electricity Decomposition Forecasting model …
Cultivating Teacher Agency: Professional Development For Culturally Sustaining Environmental Stem Education In South Texas, Uma Ganesan, Angela M. Chapman, Alexander Hernandez
Cultivating Teacher Agency: Professional Development For Culturally Sustaining Environmental Stem Education In South Texas, Uma Ganesan, Angela M. Chapman, Alexander Hernandez
Teaching and Learning Faculty Publications
This qualitative multiple-case study examined how culturally and linguistically sustaining environmental STEM (CLSE-STEM) professional development transformed in-service teachers' practices across three South Texas high schools serving predominantly Hispanic populations. Through a three-phase design, eight STEM teachers participated in sustained professional learning focused on implementing culturally situated, liberatory pedagogies addressing educational inequities. Data included focus group interviews, classroom observations, teacher-created curricula, and student artifacts collected from Spring 2024 to Spring 2025. Findings revealed five interconnected themes demonstrating teachers' evolution from deficit-based to asset-based approaches: place-based environmental stewardship, strategic translanguaging implementation, teacher agency development, enhanced student engagement, and elder knowledge integration. Results …
Antimicrobial Performance Of Amorphous Vs. Crystalline La1-Xsrxcoo3 Perovskites, S. M. Au Shohag, Fahmida Akhter, Ahmed Touhami, Swati Mohan, Md. Wasikur Rahman, Mohammed Jasim Uddin
Antimicrobial Performance Of Amorphous Vs. Crystalline La1-Xsrxcoo3 Perovskites, S. M. Au Shohag, Fahmida Akhter, Ahmed Touhami, Swati Mohan, Md. Wasikur Rahman, Mohammed Jasim Uddin
Physics & Astronomy Faculty Publications
Perovskite materials, with their unique crystal structure and chemical properties, are emerging as promising antimicrobial agents for potential biomedical applications. In this research, different weight percentages of Sr2 + doped amorphous and crystalline Lanthanum Cobaltite (La1-xSrxCoO3 defined as LSCO) (x = 0, 0.025, 0.05, 0.1, and 0.15) perovskite was synthesized by using a simple combination of sol-gel and molten-salt processes and characterized by X-ray diffraction (XRD), and scanning electron microscopy (SEM) ensures the uniform morphology of the materials. During antimicrobial study using the Kirby Bauer method, amorphous LSCO showed much better activity than crystalline LSCO against Escherichia coli, Vibrio …
Discovery Of A New Cataclysmic Variable, Galex J211240.9–422959, Via The Exoasteroids Citizen Science Project, Mei Lin, Aaron Meisner, Siyi Xu, Arttu Sainio, Liliana E. Rivera Sandoval, Paula Szkody, Christopher Tanner, Laura K. Rogers, Sarah Casewell, Austin Humphreys
Discovery Of A New Cataclysmic Variable, Galex J211240.9–422959, Via The Exoasteroids Citizen Science Project, Mei Lin, Aaron Meisner, Siyi Xu, Arttu Sainio, Liliana E. Rivera Sandoval, Paula Szkody, Christopher Tanner, Laura K. Rogers, Sarah Casewell, Austin Humphreys
Physics & Astronomy Faculty Publications
We report the discovery and spectroscopic classification of a new cataclysmic variable (CV), GALEX J211240.9–422959 (Gaia DR3 source ID 6580244356829724928). This object was initially identified as a source exhibiting strong mid-infrared variability in Wide-field Infrared Survey Explorer (WISE) time-series data by a volunteer participating in the Exoasteroids citizen science project. Prompted by this strong variability at 3–5 μm, we obtained a follow-up optical spectrum using the Gemini Multi-Object Spectrograph at the Gemini South Observatory. The resulting spectrum displays a blue continuum dominated by strong, broad emission lines of the hydrogen Balmer series and neutral helium, spectral signatures characteristic of …
A Search For Magnetically Active Binary Counterparts To Chandra X-Ray Sources In 47 Tucanae With Hst Imaging, Haldan N. Cohn, Phyllis M. Lugger, Craig O. Heinke, Maureen Van Den Berg, Liliana Rivera Sandoval, Jay Anderson
A Search For Magnetically Active Binary Counterparts To Chandra X-Ray Sources In 47 Tucanae With Hst Imaging, Haldan N. Cohn, Phyllis M. Lugger, Craig O. Heinke, Maureen Van Den Berg, Liliana Rivera Sandoval, Jay Anderson
Physics & Astronomy Faculty Publications
Using Hubble Space Telescope (HST) imaging, we searched for candidate magnetically active binary (AB) counterparts to low-luminosity Chandra X-ray sources in the globular cluster 47 Tucanae (NGC 104). We consider the catalog of 300 Chandra sources within the half-light radius of 47 Tuc compiled by C. O. Heinke et al. (2005). The 10-band HST imaging used to identify these sources spans the range from 275–658 nm. We generated a cross-matched catalog of objects detected by photometric reductions. We used this catalog to search for counterparts within Chandra source error circles using color–magnitude diagrams and a color–color plot. We …
Dissection Of The Quintuple Product, With Applications, Tim Huber, James Mclaughlin, Dongxi Ye
Dissection Of The Quintuple Product, With Applications, Tim Huber, James Mclaughlin, Dongxi Ye
School of Mathematical & Statistical Sciences Faculty Publications
This work considers the m-dissection (for m≢0(mod3)">m≢0(mod3)) of the general quintuple productQ(z,q)=(z,q/z,q;q)∞(qz2,q/z2;q2)∞.">Q(z,q)=(z,q/z,q;q)∞(qz2,q/z2;q2)∞.Multiple novel applications arise from this m-dissection. For example, we derive the general partition identityDS(mn+(m2−1)/24)=(−1)(m+1)/6bm(n), for all n≥0,">DS(mn+(m2−1)/24)=(−1)(m+1)/6bm(n), for all n≥0,where m≡5(mod6)">m≡5(mod6) is a square-free positive integer relatively prime to 6; DS(n)">DS(n) is defined, for S the set of positive integers containing no multiples of m, to be the number of partitions of n into an even number of distinct parts from S minus the number of partitions of n into an odd number of distinct parts from S; and …
Soliton Solutions To The Coupled Sasa–Satsuma Equation Under Mixed Boundary Conditions, Changyan Shi, Xiyao Chen, Guangxiong Zhang, Chengfa Wu, Bao-Feng Feng
Soliton Solutions To The Coupled Sasa–Satsuma Equation Under Mixed Boundary Conditions, Changyan Shi, Xiyao Chen, Guangxiong Zhang, Chengfa Wu, Bao-Feng Feng
School of Mathematical & Statistical Sciences Faculty Publications
In this paper, we derive general bright–dark soliton solutions to the coupled Sasa–Satsuma (CSS) equation using the Kadomtsev–Petviashvili reduction method. Since the CSS equation is a special case of the four-component Hirota equation, our approach begins with the construction of two-bright-two-dark soliton solutions for the four-component Hirota equation. By imposing specific parameter constraints, these solutions are subsequently reduced to the bright–dark soliton solutions of the CSS equation. Finally, the dynamical behaviours of the one- and two-bright–dark soliton solutions are thoroughly analysed and illustrated.
Non-Hermitian Sl (3, C) Three-Mode Couplers, B. M. Rodríguez-Lara, Hamed Ghaemi-Dizicheh, Shahram Dehdashti, Andreas Hanke, Ahmed Touhami, J. Nötzel
Non-Hermitian Sl (3, C) Three-Mode Couplers, B. M. Rodríguez-Lara, Hamed Ghaemi-Dizicheh, Shahram Dehdashti, Andreas Hanke, Ahmed Touhami, J. Nötzel
Physics & Astronomy Faculty Publications
Photonic systems with exceptional points, where eigenvalues and corresponding eigenstates coalesce, have attracted interest due to their topological features and enhanced sensitivity to external perturbations. Non-Hermitian mode-coupling matrices provide a tractable analytic framework to model gain, loss, and chirality across optical, electronic, and mechanical platforms without the complexity of full open-system dynamics. Exceptional points define their spectral topology, and enable applications in mode control, amplification, and sensing. Yet N -mode couplers, the minimal setting for N th-order exceptional points, are often studied in specific designs that overlook their algebraic structure. We introduce a general sl(N , C) framework for arbitrary …
The Rider (2026-03-30), Daniela Chapa-Reyes
Patterns Of Multimorbidity Among Low-Income Adults Who Smoke With Implications For Tailored Interventions: A Cluster Analysis Using A Mixture Of Bernoulli Model, Monique T. Cano, Michael R. Lindstrom, Oscar F. Rojas Perez, Ricardo F. Muñoz
Patterns Of Multimorbidity Among Low-Income Adults Who Smoke With Implications For Tailored Interventions: A Cluster Analysis Using A Mixture Of Bernoulli Model, Monique T. Cano, Michael R. Lindstrom, Oscar F. Rojas Perez, Ricardo F. Muñoz
School of Mathematical & Statistical Sciences Faculty Publications
Introduction: Smoking cigarettes remains a leading modifiable risk factor for preventable health conditions. In the United States, the health burden of smoking disproportionately impacts low-income individuals. Multimorbidity is common in this group, complicating treatment and worsening outcomes. Identifying multimorbidity clusters can support targeted, individualized interventions. This study aimed to identify multimorbidity clusters among individuals who smoke and experience economic hardship and provide clinical recommendations to enhance health outcomes.
Method: Individuals who smoke and experience economic hardship (N = 60) were recruited from the San Francisco Health Network (SFHN) and were assessed for physical and mental conditions. Cluster analysis was …
A Study Of Transients From Ground-Based Surveys Reveals New Ultra-Compact Accreting White Dwarf Binaries, Jan Kára, Liliana E. Rivera Sandoval, Wendy Mendoza, Thomas J. Maccarone, Manuel Pichardo Marcano, Luis Salazar Manzano, Ryan J. Oelkers, Jan Van Roestel
A Study Of Transients From Ground-Based Surveys Reveals New Ultra-Compact Accreting White Dwarf Binaries, Jan Kára, Liliana E. Rivera Sandoval, Wendy Mendoza, Thomas J. Maccarone, Manuel Pichardo Marcano, Luis Salazar Manzano, Ryan J. Oelkers, Jan Van Roestel
Physics & Astronomy Faculty Publications
AM CVn stars are ultra-compact semi-detached binaries consisting of a white dwarf primary and a hydrogen-depleted secondary. In this paper, we present spectroscopic and photometric results of 15 transient sources pre-classified as AM CVn candidates. Our analysis confirms 9 systems of the type AM CVn, 3 hydrogen-rich cataclysmic variables (accreting white dwarfs with near-main-sequence stars for donors), and 3 systems that could be evolved cataclysmic variables. Eight of the AM CVn stars are analysed spectroscopically for the first time, which increases the number of spectroscopically confirmed AM CVns by about 10%. TESS data revealed the orbital period of the AM …
What Does Next-Generation Mass Spectrometry Offer For Proteomics? A Comprehensive Platform Comparison, Filipa Blasco Tavares Pereira Lopes, Daniela Schlatzer, Tara Sudhadevi, Anantha Harijith, Marzieh Ayati, Mehmet Koyutürk, Mark R. Chance
What Does Next-Generation Mass Spectrometry Offer For Proteomics? A Comprehensive Platform Comparison, Filipa Blasco Tavares Pereira Lopes, Daniela Schlatzer, Tara Sudhadevi, Anantha Harijith, Marzieh Ayati, Mehmet Koyutürk, Mark R. Chance
Computer Science Faculty Publications
Next-generation mass spectrometry platforms (Orbitrap Astral, timsTOF Ultra) are reshaping proteomics by enhancing analytical depth and sensitivity. We compared these platforms against Orbitrap Exploris 480 using neonatal mouse lung tissues from a bronchopulmonary dysplasia model (n = 12), employing four acquisition strategies: Exploris 480 DDA/DIA, Astral HR-DIA, and timsTOF Ultra DIA-PASEF. All platforms identified ∼4000 proteins in common, with 98% proteome coverage of data-dependent acquisition (DDA) identifications using data-independent (DIA) methods and 92% concordance between next-generation systems. Orbitrap Astral and timsTOF Ultra quantified >225,000 peptides and 13,000 proteins, representing ∼800% and ∼300% greater depth than Exploris 480 DDA, respectively. …
Bacillus Subtilis Parb C-Terminal Lysine Residues Are Essential For Dimerization And In Vivo Function, Indicating Their Roles In Dna Sliding, Aleksey Aleshintsev, Lindsey E. Way, Ngoc Khanh Lai, Bianca Guerra, Paloma Dorantes, Lois Akosua Serwaa, Sealtiel Anulao, Miranda Molina, Xindan Wang, Hyeongjun Kim
Bacillus Subtilis Parb C-Terminal Lysine Residues Are Essential For Dimerization And In Vivo Function, Indicating Their Roles In Dna Sliding, Aleksey Aleshintsev, Lindsey E. Way, Ngoc Khanh Lai, Bianca Guerra, Paloma Dorantes, Lois Akosua Serwaa, Sealtiel Anulao, Miranda Molina, Xindan Wang, Hyeongjun Kim
Physics & Astronomy Faculty Publications
The broadly conserved ParB protein performs crucial functions in bacterial chromosome segregation and replication regulation. The cellular function of ParB requires it to dimerize, recognize parS DNA sequences, clamp on DNA, then slide to adjacent sequences through nonspecific DNA binding. How ParB coordinates nonspecific DNA binding and sliding remains elusive. Here, we combine multiple in vitro biophysical and computational tools and in vivo approaches to address this question. We found that five conserved lysine residues in the C-terminal domain (CTD) of ParB play distinct roles. While the two central rigid lysine residues provide the structural platform for the CTD, the …
Survival Politics On A Working Waterfront: Rules Change Faster Than Prices In The South Texas Shrimp Fishery, Owen Temby, Anthony R. Lima
Survival Politics On A Working Waterfront: Rules Change Faster Than Prices In The South Texas Shrimp Fishery, Owen Temby, Anthony R. Lima
School of Earth, Environmental, & Marine Sciences Faculty Publications
In 2024–2025, the U.S. and Texas governments raced to save Gulf shrimp. Texas passed a truth-in labeling law for food service in restaurants. Federal agencies added antidumping and countervailing duty orders and new tariffs. This case follows Brownsville and Port Isabel, where dock prices slid while boats and crews aged. We frame the response as survival politics: urgent and improvised moves to keep a livelihood going even when imports set the price. Using legislative hearings, agency notices, local reporting, and port records, we show that rules reset faster than prices. Inventories, contracts, and supplier substitution delay any lift at the …
Riverbank Erosion In The Ganges Reach Of Bangladesh: Influence Of Geotechnical Factors And Seasonal Water Level Fluctuations, Sumiaya Amin Preota, Md. Mostafizur Rahman, Fazle Rabbi Joy, Md. Bodruddoza Mia, Farhad Hossain, Shariful Islam, Saba Karim
Riverbank Erosion In The Ganges Reach Of Bangladesh: Influence Of Geotechnical Factors And Seasonal Water Level Fluctuations, Sumiaya Amin Preota, Md. Mostafizur Rahman, Fazle Rabbi Joy, Md. Bodruddoza Mia, Farhad Hossain, Shariful Islam, Saba Karim
School of Earth, Environmental, & Marine Sciences Faculty Publications
This study aims to characterize the erosional behaviour of the Ganges riverbanks by investigating the geotechnical properties and seasonal hydrological fluctuation in Bangladesh. Multi-temporal satellite images (1973–2020) were analysed using Geographic Information System (GIS) to select study locations for detailed analysis. The GIS-based analysis identified erosion-accretion patterns and highlighted erosion-prone and stable riverbank locations. Further, field investigation, geotechnical laboratory analyses, and slope stability model using SLIDE software were used to assess the targeted study factors from the selected locations. Field investigation and geotechnical assessments revealed that bank material cohesion and composition strongly influence erosion. River flow at the outer bends …
Institutional And Ideational Features Of Canadian-Us Fishery Management Networks: Connectivity, Coherence, And Collaboration, Owen Temby, Evelyn Roozee, Dongkyu Kim, Jasper R. De Vries, Derek A. Katznelson, Antonia Sohns, Gordon M. Hickey
Institutional And Ideational Features Of Canadian-Us Fishery Management Networks: Connectivity, Coherence, And Collaboration, Owen Temby, Evelyn Roozee, Dongkyu Kim, Jasper R. De Vries, Derek A. Katznelson, Antonia Sohns, Gordon M. Hickey
School of Earth, Environmental, & Marine Sciences Faculty Publications
This article examines fishery management along and across the Canadian-US border through the comparison of collaborative transboundary networks in four regions: the Salish Sea, the Great Lakes, the Gulf of Maine, and the northern region including the Gulf of Alaska and the Hecate Strait. Transnational fishery management is an inter-organizational and multi-jurisdictional enterprise constituted by shared understandings of a suite of tasks and by communications among the participants. We use survey data to summarize the inter-organizational scale and participation in the networks, the centrality of different organization types, the factors that contribute to network formation, other ideational network traits like …
Why Text Prevails: Vision May Undermine Multimodal Medical Decision Making, Siyuan Dai, Lunxiao Li, Kun Zhao, Eardi Lila, Paul K. Crane, Heng Huang, Dongkuan Xu, Haoteng Tang
Why Text Prevails: Vision May Undermine Multimodal Medical Decision Making, Siyuan Dai, Lunxiao Li, Kun Zhao, Eardi Lila, Paul K. Crane, Heng Huang, Dongkuan Xu, Haoteng Tang
Computer Science Faculty Publications
With the rapid progress of large language models (LLMs), advanced multimodal large language models (MLLMs) have demonstrated impressive zero-shot capabilities on vision–language tasks. In the biomedical domain, however, even state-of-the-art MLLMs struggle with basic Medical Decision Making (MDM) tasks. We investigate this limitation using two challenging datasets: (1) three-stage Alzheimer’s disease (AD) classification (normal, mild cognitive impairment, dementia), where category differences are visually subtle, and (2) MIMICCXR chest radiograph classification with 14 non–mutually exclusive conditions. Our empirical study shows that text-only reasoning consistently outperforms vision-only or vision–text settings, with multimodal inputs often performing worse than text alone. To mitigate this, …
Measuring What Matters: Specifications Grading And Latin* Students’ Mathematics Identity, Luis Miguel Fernández, Mayra Ortiz Galarza, Cristina Villalobos, Martha Asare
Measuring What Matters: Specifications Grading And Latin* Students’ Mathematics Identity, Luis Miguel Fernández, Mayra Ortiz Galarza, Cristina Villalobos, Martha Asare
School of Mathematical & Statistical Sciences Faculty Publications
This study examined Specifications Grading, an alternative grading system emphasizing clearly defined learning outcomes and revision, and mathematics identity among 846 Latin* Calculus I students at a Hispanic-Serving Institution. Mathematics identity, comprising competence/performance, recognition, and interest, was measured at the beginning and end of the semester. Repeated-measures analyses indicated stable competence/performance and recognition alongside declines in interest. Specifications Grading was associated with increased mathematics identity, and multilingual students experienced smaller declines than their peers overall.
-
Este estudio examinó la calificación por especificaciones, un sistema de evaluación alternativo que enfatiza resultados de aprendizaje claramente definidos y oportunidades estructuradas de revisión, …
The Rider (2026-03-02), Daniela Chapa-Reyes
An Intersectional Framework For Effectively Mentoring Latinas In Stem Fields, Rosalynn A. Vega
An Intersectional Framework For Effectively Mentoring Latinas In Stem Fields, Rosalynn A. Vega
Anthropology Faculty Publications
While Latinas are underrepresented across all areas of academia, this problem is especially severe in the science, technology, engineering, and mathematics (STEM) fields. This chapter offers a “best practices,” step‑by-step guide for how to effectively mentor Latinas in STEM fields—drawing from interdisciplinary concepts, culled from critical race studies, statistics, and anthropology—and personal experience as a Latina in STEM, mentor, and mentee. Crenshaw’s (1989) theory of intersectionality, Farmer’s (1999) notion of structural violence, and multivariate statistical modeling is used to demonstrate that intersectional inequality can be traced back to social structures. Multi‑gender and multiethnic mentoring by individuals who are motivated to …