Digital Commons @ Texas A&M University-San Antonio
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A Situation That Has Existed for Generations : Double Age, Race, and American Juvenile Justice
Get PDFAugmentative and Alternative Communication Intervention Targets for School-Aged Participants with ASD and ID: a Single-Case Systematic Review and Meta-analysis
No full textThis meta-analysis reviews the literature on communication modes, communicative functions, and AAC type examined during interventions with school-age participants with ASD and/or ID who experience CCN. Considering potential differences related to outcomes taught could help identify the most effective means of individualizing AAC interventions. We performed a comprehensive literature search. A multi-level meta-analysis was implemented across 114 included studies with 330 participants and 767 effect size using two case-level effect size metrics, Tau and log response ratio. There were few statistically significant differences found between moderator categories (e.g., communication mode, communicative function, and AAC type implemented). This is likely due, in part, to the participant heterogeneity and an under-reporting of implementation factors. A PRISMA-compliant abstract is available at https://docs.google.com/document/d/1ZMjs3WuvIjTghkqa-JzJ3wc00bnmJkHciVL6_pY4WN8/edit
In Situ Treatment Technologies for Pit Latrines to Mitigate Groundwater Contamination by Fecal Pathogens: A Review of Recent Technical Advances
Get PDFOn-site sanitation systems such as pit latrines are extensively used around the world, while there is a growing number of evidence documenting the impact of pit latrines on groundwater quality that may affect human health. Hence, this paper summarizes the various safe-sanitation technologies by broadly categorizing them into fecal pathogen disinfection methods (anaerobic digestion, chemical disinfection, biological additives, solar pasteurization and vermicomposting) and capturing methods (pit lining and permeable reactive barriers, the latter of which simultaneously capture and sanitize fecal sludge in pit latrines). While some of the reviewed technologies have been widely practiced for mitigating microbial contamination of the groundwater, others are still in the early stage of commercialization and field validation. Though there are challenges to the selection and adoption of the most appropriate technology, this paper discusses the readiness of each technology as a stand-alone fecal sludge management solution
COVID-19 Oral History Project: Interview with Dorothy Martinez
Get PDFThe interview discusses the interviewee\u27s lived experience during the COVID-19 pandemic and Winterstorm. The person interviewed was Dorothy Martinez of San Antonio by Karla Noyola for Dr. Gene Morales’ U.S. History 1302 course. Martinez discusses how her life charged throughout the pandemic, from the measures in interactions between school and community members
COVID-19 Oral History Project: Interview with Norma Ramirez
No full textThe interview discusses the interviewee\u27s lived experience during the COVID-19 pandemic and Winterstorm. The person interviewed was Norma Ramirez of San Antonio by Tessa Cantu for Dr. Gene Morales’ U.S. History 1302 course. Ramirez discusses how her life charged throughout the pandemic, from the measures in interactions between school and community member
Improving Pneumonia Classification and Lesion Detection Using Spatial Attention Superposition and Multilayer Feature Fusion
Get PDFPneumonia is a severe inflammation of the lung that could cause serious complications. Chest X-rays (CXRs) are commonly used to make a diagnosis of pneumonia. In this paper, we propose a deep-learning-based method with spatial attention superposition (SAS) and multilayer feature fusion (MFF) to facilitate pneumonia diagnosis based on CXRs. Specifically, an SAS module, which takes advantage of the channel and spatial attention mechanisms, was designed to identify intrinsic imaging features of pneumonia-related lesions and their locations, and an MFF module was designed to harmonize disparate features from different channels and emphasize important information. These two modules were concatenated to extract critical image features serving as the basis for pneumonia diagnosis. We further embedded the proposed modules into a baseline neural network and developed a model called SAS-MFF-YOLO to diagnose pneumonia. To validate the effectiveness of our model, extensive experiments were conducted on two CXR datasets provided by the Radiological Society of North America (RSNA) and the AI Research Institute. SAS-MFF-YOLO achieved a precision of 88.1%, a recall of 98.2% for pneumonia classification and an AP50 of 99% for lesion detection on the AI Research Institute dataset. The visualization of intermediate feature maps showed that our method could facilitate uncovering pneumonia-related lesions in CXRs. Our results demonstrated that our approach could be used to enhance the performance of the overall pneumonia detection on CXR imaging
Sara R. Massey Collection
Get PDFSara R. Massey was an award-winning historian focusing on Texas history. The collection contains research on women in U.S. and Texas history, as well as research from a 2008 project on Vietnamese immigrants in the Texas Gulf Coast.https://digitalcommons.tamusa.edu/findingaids/1175/thumbnail.jp
Access and Experiences of Arabic Native Speakers With Disabilities on Social Media During and After the World Pandemic
No full textSince the start of the coronavirus 2019 (COVID-19) outbreak, governments across the world have mobilized to inform citizens on the virus spread details, nation-level processes, and best health measures and practices to be taken. A large percentage of the media posted through the COVID-19 crisis has been graphical, which raised the question of whether Arabic-speaking blind and deaf persons were able to independently access reliable information. This article presents the results of two studies. The first study involves a content analysis of official social media posts about COVID-19 during critical phases of the outbreak via heuristic evaluation of WCAG2.1 on an iOS smartphone and an iPad. The second study explores the experiences of native Arabic-speaking blind and deaf persons on social media during the pandemic and curfew or lockdown periods in the State of Kuwait using a semi-structured interview (11 people who are blind/low vision and 7 people who are deaf). Overall, our findings highlight the accessibility gaps in the current government social media information content and its dissemination practices and barriers in providing information and services. Also, it gives insights into how people who are blind and people who are deaf are able to manage their lifestyle within and beyond the COVID-19 pandemic
COVID-19 Oral History Project: Interview with Amanda Contreras
No full textThe interview discusses the interviewee\u27s lived experience during the COVID-19 pandemic and Winterstorm. The person interviewed was Amanda Contreras of San Antonio by Johnathan Ortiz for Dr. Gene Morales’ U.S. History 1302 course. Contreras discusses how her life charged throughout the pandemic, from the measures in interactions between school and community members
Chemical and Carbon Isotopic Characterization of a Karst-Dominated Urbanized Watershed: Case of the Upper San Antonio River
Get PDFUrbanization and agriculture are two key factors that place demands on water resources and serve as sources of anthropogenic pollution into inland waterways. The San Antonio River, which is sourced from a karst aquifer, plays an important recreational and scenic role, yet effective management is often hampered by the lack of understanding of the chemical characterization of the water system. The karst-dominated Edwards Aquifer watershed in south-central Texas is an ideal watershed to understand water-rock interaction (carbonate dissolution) and anthropogenic impact on our water resources. In order to understand groundwater-surface water interactions, we made chemical and isotopic measurements over a 17-km stretch of the San Antonio River beginning at the headwater sanctuary and moving downstream. The chemistry of the headwaters and at along the longitudinal profile of the river showed that the Edwards Aquifer is dominated by Ca2+, Mg2+ and HCO3- ions resulting from carbonate dissolution. The carbon isotopic signature of dissolved inorganic carbon (δ13CDIC) showed that the Edwards Aquifer is in chemical and isotopic equilibrium with soil CO2(g). The relationships between δ13CDIC and solutes (Cl-, Na+, F-, NO3-) showed that anthropogenic sources of these solutes are associated with low δ13CDIC values, indicating that carbon isotopic composition of dissolved inorganic carbon can be a useful tracer for contaminants in the environment. The anthropogenic inputs into the San Antonio River were sourced mainly from effluents of the San Antonio Zoo, waste discharge from the River Walk in downtown San Antonio and from fertilizers and animal waste in the less urbanized section of the sampled area (Mission Concepcion to Mission Espada). To protect and sustain the water quality of urban waterways and karst aquifers, urban sewage and effluents must be treated and controlled