Southern Arizona Research Articles

Thoughts on a Lifetime of Optometric Practice and Changes in Scope of Practice

This paper discusses personal experiences in optometry practice, first in the military, then in rural southern Arizona, and later in Tucson, Arizona, with emphasis on scope of practice.

Using iNaturalist presence data to produce suitability maps for Triatoma protracta, T. rubida and T. recurva in the American Southwest, Texas and northern Mexico, to identify potential transmission zones of Chagas disease.

There are 11 species of triatomines in the USA, with seven reported in the American Southwest. These species are capable of transmitting Trypanosoma cruzi, the etiological agent of Chagas disease, but are generally sylvatic and rarely infect humans in the USA. iNaturalist is one of the most popular citizen science data portals, where users record encounters with any individual organism. As of November 2023, iNaturalist reported 722 confirmed triatomine observations in the American Southwest. Maximum entropy ecological niche modelling and bioclimatic environmental variables were used to predict zones of highest human-triatomine interaction. Models fit well for Triatoma protracta (0.85), T. rubida (0.94), and T. recurva (0.96). Precipitation in the warmest quarter was most predictive of T. protracta presence, while precipitation in the driest quarter was most predictive of T. rubida and T. recurva. Locations identified in the American Southwest with highest potential for human-triatomine interaction, and potential T. cruzi transmission, were coastal California, the Sierra Nevada foothills, southern Arizona and border areas of northern Mexico. Study findings can be used for targeted surveillance efforts to address the paucity of contemporary information regarding triatomine species diversity and geographical and ecological associations in the American Southwest.

Disseminated Histoplasmosis in an Immunocompetent Patient from Southern Arizona

Disseminated Histoplasmosis in an Immunocompetent Patient from Southern Arizona

Investigating Mobility, Place, and Information Access Through an Ethnographic Study of Vehicle Residents’ Information Practices in the United States

Throughout the United States, an approximated one million people currently inhabit vehicles parked in publicly accessible areas as their primary method of housing. This dissertation explores vehicle residents’ information seeking practices and barriers to information access. Library and Information science (LIS) research has not developed theory related to place, mobility, and information access, despite living in a hyper-mobile world. LIS primarily centers online information behaviors, limiting potential impact on larger populations that face unique barriers to information access. While some studies constructed theory to address the function of place in information behavior, few interrogate how place and mobility impact information access despite geographic mobility serving important functions in various theory constructions. To address the importance of place and mobility in the context of information access, I conducted a multi-method, ethnographic study. Completing two rounds of deeply embedded fieldwork from June-October 2023 in Santa Cruz, California (CA) and from January-February 2024 along the Southern CA and Arizona (AZ) border, I used participant observation, information horizon interviews, and guided tours and photographs of participant’s vehicles to explore vehicle residents’ information practices and information source preferences. I determined my key findings in Spring 2024; they reveal that participants experience micro-fractures in their information landscapes when moving through new information environments. Identifying vehicle residents’ information practices and most used information sources can help public libraries and other information institutions implement improved support services for this growing population as public libraries are well positioned to bolster information access on behalf of its communities.

Overcoming the reproduction of the value(s) system in wine: insights from Southern Arizona

ABSTRACT The underrepresentation of the diversity of wine production around the globe, the standardization of varieties, wine styles, and taste, as well as the imbalance between grapes and place specificity, are global effects of the reproduction of the wine value(s) system. From the context of emerging winegrowing places and through a qualitative analysis of diverse experiences among the first generation of Sonoita-Elgin (Arizona, USA) wine producers, this paper explores the influence of wine value(s) system hierarchy on their practice, knowledge, and development. Despite its low representation and visibility globally, emerging wine places like Arizona are introducing new actors to the global wine scene, questioning the homogenization of varieties and styles, the efficiency of evaluation and classification programs based on geographical indication models, and the challenges of achieving collective representations and global recognition of quality. The particularities of Sonoita-Elgin wine producers facing these challenges reveal alternative perspectives and attributes of the relationship between place of origin, value, and quality. In that regard, this work illustrates how these new interpretations represent the current transformation of the practices, ideas, and meanings in the production and consumption of wine, contributing to critical debates on change.

Coproducing Opportunities to Advance Heat Resilience in Southern Arizona

Coproducing Opportunities to Advance Heat Resilience in Southern Arizona

Trilobites from the upper middle Cambrian (Miaolingian, Guzhangian) of the Sierra Los Ajos, northern Sonora, Mexico: Biostratigraphic and paleogeographic considerations

A Cambrian sedimentary sequence with a predominant lithology of limestone, sandy limestone, and quartzite pertaining to the Bolsa and Abrigo formations is exposed in the Sierra Los Ajos to the east of Cananea city (northeastern Sonora, Mexico). Two fossil assemblages from Guzhangian layers of the Abrigo Formation are described herein. The trilobites identified comprise Tricrepicephalus texanus (Shumard), Crepicephalus sp., Coosia ariston (Walcott), Coosia sp., Cedaria cf. eurycheilos Palmer, Coosella sp., Llanoaspis modesta Lochman, and Llanoaspis? sp., representing the Cedaria and Crepicephalus zones (Miaolingian, Guzhangian). The Cambrian rocks of northeastern Sonora (Sierra Los Ajos, El Tule, and Mesteñas hills), southern Arizona, and Texas, were deposited as part of a thick sedimentary sequence on the southwestern margin of Laurentia, associated with an inner shelf marine environment. The distribution of the trilobites identified confirms the existence of a widespread Cambrian faunal province that includes the southeastern United States of America and northwestern Mexico.

Impeding Access to Asylum: Title 42 “Expulsions” and Migrant Deaths in Southern Arizona

Executive Summary Immigration at the US-México border has drastically changed since the mid-2010s. Instead of adult undocumented Mexican men, generally migrating for economic purposes, there are now large numbers of men, women, unaccompanied minors, and families from diverse countries seeking asylum in the United States, as they are allowed to do under US and international law. In response to these changes, the US federal government leveraged multiple strategies to impede access to the country’s asylum system, including relying on Title 42 “expulsions.” Title 42, a COVID-19-era health measure, prevented migrants from initiating an asylum claim. Instead, asylum-seekers were typically immediately expelled to the closest port of entry in México. The use of public health as a pretext to control the border placed these migrants at risk and led many to attempt repeat border crossings. Given this policy context, we ask: what, if any, is the association between Title 42 expulsions and migrant deaths in southern Arizona? We address this question by drawing on records of recovered undocumented border crosser (UBC) remains investigated by the Pima County Office of the Medical Examiner (PCOME) in Tucson, Arizona. We examined differences in the number and demographic characteristics of UBC remains recovered between what prior studies have characterized as the “Localized Funnel Effect” Era of border enforcement in southern Arizona (i.e., October 1, 2013–March 19, 2020; N = 851), and the “Title 42” Era (i.e., March 20, 2021–September 30, 2023; N = 709). We also assessed how, if at all, the geography of recovered UBC remains shifted between these eras. We found that migrant deaths rose from an annual mean of 133 during the Localized Funnel Effect (LFE) Era to 198 in the Title 42 (T42) Era, representing a 48 percent increase. Compared to the earlier era, remains recovered during the T42 Era clustered closer to the border and near the cities of Nogales and Agua Prieta, Sonora, having shifted from west to east in southern Arizona. Additionally, we found that Title 42 disproportionately affected Mexican and Guatemalan nationals both in terms of expulsions as well as deaths. We propose several policy recommendations based on our study’s findings intended to reduce unnecessary suffering and increase human security: • The US federal government should not impede or limit migrants’ access to the asylum system. Policymakers should instead create clear pathways and procedures that obviate the need for migrants to undertake dangerous journeys and overcome barriers to fair consideration of their claims. • The US government must expand its ability to address these claims, as continued attempts to block asylum seekers will result in additional loss of life and increased violence. It should increase its capacity to screen asylum seekers at the US-México border. We propose an increase in USCIS Asylum Officers to carry out this duty. US Customs and Border Protection agents should not screen asylum seekers, nor should they assume the responsibility of serving as asylum officers, given the agency’s extensively documented record of persistently dehumanizing and mistreating migrants. • The US federal government must take measures to eliminate the backlog of asylum cases in the immigration courts. These measures need to include reforms in the underlying immigration system and in the removal adjudication system, such as greater access to legal counsel and changes to the law that offer legal pathways to imperiled migrants who do not meet the narrow definition of asylum. Absent these reforms, the asylum case backlog will grow, and many asylum seekers with strong claims to remain will be removed after living for years in the United States.

Excessive Use of Force and Migrant Death and Disappearance in Southern Arizona

Executive Summary In this article, we present a qualitative analysis of the events surrounding death or disappearance in autopsy and missing person reports from the Pima County Office of the Medical Examiner (PCOME) in Arizona to highlight how interactions between border enforcement personnel and migrants can be deadly. We reviewed PCOME records of undocumented border crosser deaths between 2000 and 2023 and observed three main types of deadly U.S. Border Patrol (USBP) practices: reckless motor vehicle pursuits, aggressive strategies used to detain individuals who are on foot, and the use of lethal force. Our findings reveal that these tactics, which we argue constitute forms of “excessive use of force,” represent significant yet overlooked factors contributing to migrant death and disappearance in southern Arizona. We make the following policy recommendations: 1. Immediate measures to prevent the loss of life (A). The Department of Homeland Security (DHS) should mandate a ban on border enforcement methods that provoke fear, panic, or confusion. (B). DHS should take measures to substantially reduce the use of high-speed motor vehicle pursuits by USBP and other immigration enforcement officials. (C). DHS should ensure that USBP officers are compliant with Department of Justice (DOJ) standards on use of deadly force, in particular the policy that “Deadly force may not be used solely to prevent the escape of a fleeing suspect.” 2. Investigate Border Fatalities Involving Border Enforcement Officers (A). We call on the Government Accountability Office (GAO) to conduct an official review of all medical examiner and coroner records along the U.S.-Mexico border for fatality cases in which border enforcement personnel were involved in any way in the circumstances surrounding death. (B). We encourage the formation of civilian review boards in border regions to review medical examiner and coroner records of migrant fatalities involving immigration officials as well as immigration officials’ apprehension strategies immediately preceding fatal encounters with migrants.

Impact of a Delirium Protocol on Deliriogenic Medication Use in Hospitalized Older Veterans.

Background The Southern Arizona VA Health Care System (SAVAHCS) implemented a delirium prevention and treatment protocol in 2019. Objective The primary objective of this study was to determine if the implementation of a delirium protocol influenced deliriogenic medication use in hospitalized geriatric veterans. The secondary objectives were to compare the rates of delirium diagnosis, hospital length-of-stay, and rates of newly started deliriogenic medications during admission pre- and post-protocol. Methods This study was a retrospective, secondary data analysis study. Veterans 65 years of age and older who were admitted to an inpatient medical ward at the SAVAHCS for 24 hours or more between January 1, 2018 and December 31, 2018 (pre-protocol) or January 1, 2021 and December 31, 2021 (post-protocol) were included. Patients were excluded if they had a diagnosis of alcohol or benzodiazepine withdrawal upon admission. Results A total of 5491 patients were included in this study; 2940 (53.5%) in the pre-protocol group and 2551 (46.5%) in the post-protocol group. Patients received at least one deliriogenic medication during their admission in the post-protocol group (36.2%) compared with the pre-protocol group (34.1%), but there was no statistically significant difference (P = 0.098). There were also no significant differences in the rates of documentation of delirium as a diagnosis at discharge, hospital length-of-stay, or the rates of newly started deliriogenic medications during admission between the groups. Conclusion Implementation of a delirium prevention and treatment protocol at the SAVAHCS did not significantly impact the use of deliriogenic medications in hospitalized geriatric veterans.

The Multiple Speeds of Infrastructural Violence, or Putting Flesh on the Boneyard

In recent years, museums have been acknowledged as powerful geopolitical sites. In this article, we explore the military museums of southern Arizona, primarily the Pima Air and Space Museum in Tucson, as a unique kind of infrastructure where the museum and the military meet. Drawing on participant observation, we explore how the museum experience provides crucial affective and emotional dimensions to the ideological production the military is involved in. This article also uses geographic information systems to begin charting connections between these museums and their immediate surroundings in the city and region, as well as the wider territories that the military museums help to maintain. As military infrastructure morphs into museum experiences, we consider the epistemic violence that results and consider how it might also be a form of slow infrastructural violence, insofar as it helps maintain unequal relations of power and ongoing violence around the world and in the city itself.

Estimating coccidioidomycosis endemicity while accounting for imperfect detection using spatio - temporal occupancy modeling.

Coccidioidomycosis, or Valley fever, is an infectious disease caused by inhaling Coccidioides fungal spores. Incidence has risen in recent years, and it is believed the endemic region for Coccidioides is expanding in response to climate change. While Valley fever case data can help us understand trends in disease risk, using case data as a proxy for Coccidioides endemicity is not ideal because case data suffers from imperfect detection, including false positives (e.g., travel-related cases reported outside of endemic area) and false negatives (e.g., misdiagnosis or underreporting). We proposed a Bayesian, spatio-temporal occupancy model to relate monthly, county-level presence/absence data on Valley fever cases to latent endemicity of Coccidioides, accounting for imperfect detection. We used our model to estimate endemicity in the western United States. We estimated high probability of endemicity in southern California, Arizona, and New Mexico, but also in regions without mandated reporting, including western Texas, eastern Colorado, and southeastern Washington. We also quantified spatio-temporal variability in detectability of Valley fever, given an area is endemic to Coccidioides. We estimated an inverse relationship between lagged 3- and 9-month precipitation and case detection, and a positive association with agriculture. This work can help inform public health surveillance needs and identify areas that would benefit from mandatory case reporting.

Expressing diminutive meaning in heritage Spanish: linking the heritage experience to diminutive use in everyday speech

IntroductionThis paper studies the pragmatic force that heritage speakers may convey through the use of the diminutive in everyday speech. In particular, I analyze the use of the Spanish diminutive in 49 sociolinguistic interviews from a Spanish–English bilingual community in Southern Arizona, U.S. where Spanish is the heritage language. I compare the use of the diminutive in heritage Spanish to the distribution of the diminutive in the speech of a Spanish monolingual community (18 sociolinguistic interviews) from the same dialectal region. Although Spanish and English employ different morphosyntactic strategies to express diminutive meaning, the analysis reveals that the diminutive morpheme -ito/a is a productive morphological device in the Spanish-discourse of heritage speakers from Southern Arizona (i.e., similar diminutive distributions to their monolingual counterparts). While heritage speakers employed the diminutive -ito/a to express the notion of “smallness” in their Spanish-discourse, the analysis indicates that these language users are more likely to invoke a subjective evaluation through the diminutive -ito/a when talking about their family members and/or childhood experiences. This particular finding suggests that the concept “child” is the semantic/pragmatic driving force of the diminutive in heritage Spanish as a marker of speech by, about, to, or with some relation to children. The analysis further suggests that examining the pragmatic dimensions of the diminutive in everyday speech can provide important insights into how heritage speakers encode and create cultural meaning in their heritage languages.MethodsIn this study, I analyze the use of Spanish diminutives in two U.S.-Mexico border regions. The first data set is representative of a Spanish–English bilingual community in Southern Arizona, U.S., provided in the Corpus del Español en el Sur de Arizona (The CESA Corpus). The CESA Corpus comprises 49 sociolinguistic interviews of ~1 h each for a total of ~305,542 words. The second data set comprises 18 sociolinguistic interviews of predominantly monolingual Spanish speakers from the city of Mexicali, Baja California in Mexico, provided in the Proyecto Para el Estudio Sociolingüístico del Español de España y de América (PRESEEA). The Mexicali data set consists of ~119,162 words.ResultsThe analysis revealed that the Spanish diminutive morpheme -ito/a is a productive morphological device in the Spanish-discourse of heritage speakers from Southern Arizona. In addition to its prototypical meaning (i.e., the notion of “smallness”), the diminutive morpheme -ito/a conveyed an array of pragmatic functions in the everyday speech of Spanish heritage speakers and their monolingual counterparts from the same dialectal region. Importantly, these pragmatic functions are mediated by speakers' subjective perceptions of the entity in question. Unlike their monolingual counterparts, heritage speakers are more likely to invoke a subjective evaluation through the diminutive -ito/a when talking about their family members and/or childhood experiences. Altogether, the study suggests that the concept “child” is the semantic/pragmatic driving force of the diminutive in heritage Spanish as a marker of speech by, about, to, or with some relation to children.DiscussionIn this study, I followed Reynoso's framework to study the pragmatic dimensions of the diminutive in everyday speech, that is, speakers' publicly conveyed meaning. The analysis revealed that heritage speakers applied most of the pragmatic functions and their respective values observed in Reynoso's cross-dialectal study of Spanish diminutives, and hence providing further support for her framework. Similarly, the study provides further evidence to Jurafsky's proposal that morphological diminutives arise from semantic or pragmatic links with children. Finally, the analysis indicated that examining the semantic/pragmatic dimensions of the diminutive in everyday speech can provide important insights into how heritage speakers encode and create cultural meaning in their heritage languages, which can in turn have further ramifications for heritage language learning and teaching.

Precipitation and time effects on vegetation change in Southern Arizona abandoned farmland

Farmland abandonment represents a significant issue globally, and in arid environments reclaiming ecosystems is challenging. In the Sonoran Desert, much irrigated farmland has been abandoned since 1950. Our objective was to compare changes in vegetative (canopy) cover and species over a 26-year period on abandoned farmland and unfarmed controls in southcentral Arizona (precipitation <300 mm/year). We evaluated time since abandonment and precipitation effects on these variables between 1976 and 2003 with point frame methods on eight farmland sites using stepwise multiple regression. Results suggest antecedent precipitation (AP) is more important than time since abandonment in explaining cover changes. On 26 abandoned sites, we used non-parametric ANOVA to show that vegetative cover (point frame and line intercept methods) declined by about 43% from 1977 to 2023, which was greater than on non-farmed controls. Few farmlands had cover and species composition like reference communities in 2003. Paired farmland-control sites exhibited similar vegetation in 1977 and 2003 suggesting local factors (e.g., soil chemistry, roadways) may have overwhelmed that of farming. Uninterrupted (natural) surface water flow may predict where revegetation was most successful. Our research indicates that farmland may exist in alternative states, and passive revegetation will not reestablish native Sonoran Desert communities on most abandoned farmland sites.

Chapter 5. Finding and understanding ancient irrigated agricultural fields in southern Arizona

AbstractFor over a century, archaeologists have investigated the vast network of prehistoric Hohokam canal irrigation systems in the lower Salt River and middle Gila River valleys, as well as in other areas of southern Arizona. However, documentation of the agricultural fields in which prehistoric farmers irrigated their crops generally was lacking until the last 25 years. This is largely a result of the difficulty in identifying ancient fields, since they are not visible on the surface and have been obscured or destroyed by natural landscape processes as well as historic and modern disturbances. More recent archaeological investigations have revealed ancient irrigated fields through innovative methods and excavation techniques. The fields were constructed both by Hohokam irrigators (450–1450 CE) as well as by farmers from preceding cultural traditions during the Early Agricultural period (2100 BCE–50 CE). These discoveries occurred during projects conducted in compliance with the National Historic Preservation Act. In this chapter, I highlight these important studies that have expanded the view of ancient agricultural landscapes in southern Arizona.

Risk factors associated with loneliness among mexican-origin adults in southern Arizona

This study examines factors associated with symptoms of loneliness among a sample (n = 213) of mostly Mexican-origin adults at risk of chronic diseases in Southern Arizona’s Pima, Yuma, and Santa Cruz counties. It uses baseline data from a community-based participatory research partnership and multinominal logistic regression models. Controlling for chronic diseases and sociodemographic characteristics, perceived social support and hope exhibit negative main effects on loneliness when comparing individuals who experienced loneliness for 5–7 days in the preceding week with those who did not encounter such feelings during the same period (adjusted odds ratio, AOR = 0.49 and 0.47; 95% confidence interval, CI = 0.34–0.73 and 0.29–0.75, respectively). However, when considered together, perceived social support and hope display a positive and statistically significant combined effect on loneliness (AOR = 1.03; 95% CI = 1.01–1.06). Holding all covariates constant, individuals reporting loneliness for 5–7 days exhibit a relative risk ratio of 1.24 (95% CI = 1.06–1.46) for a one-unit increase in physical problem severity compared to those who do not experience loneliness. Moreover, being 65 years old or older (AOR = 0.16, 95% CI = 0.03–0.84), and having been born in Mexico and lived in the US for less than 30 years (AOR = 0.12, 95% CI = 0.02–0.74) are associated with negative main effects on loneliness when comparing individuals who experienced loneliness 1–2, and 5–7 days in the preceding week with those who did not feel loneliness during the same timeframe, respectively. Recognizing the crucial role of loneliness in shaping health outcomes for Mexican-origin adults, our findings underscore the significance of fostering supportive environments that not only enhance well-being but also cultivate robust community bonds within the US-Mexico border region.

Seriating Trincheras Bichrome Pottery and Understanding Nearly a Millennium of Regional Ceramic Production

Nearly a century ago, pioneering investigations in northern Sonora led to the first discussion of Trincheras tradition ceramics. Since then, only cursory attempts have been made to understand the temporal and spatial variability of Trincheras bichrome pottery. A recent detailed attribute analysis of pottery from sites across Sonora and southern Arizona has resulted in the region’s first ceramic seriation and a revised decorated ceramic typology. In this paper, I synthesize the results of this study, highlight key technological differences which occurred over nearly a millennium, and argue that the Trincheras tradition was one of the earliest producers of bichrome ceramics in the Southwest/Northwest. A revision of Trincheras ceramic typologies has been much needed and is invaluable for archaeologists working in both Sonora and Arizona.

Beauty in the struggle: Insurgent safety and abolitionist commoning in Arizona

ABSTRACT Arizona is one of the most punitive places on the planet, with an incarceration rate of 868 per 100,000 people. State actors use criminalization, policing, prisons, and probation to respond to social and economic problems at an industrial scale. In Arizona and across the country, public safety is understood through the logics and material practices of carcerality. Over the past decade, a series of rebellions against police violence and mass incarceration have destabilized the United States’ punishment regime. This article an effort to examine counter-hegemonic conceptualizations of safety at scale, asking: What do non-carceral forms of safety look like in Southern Arizona, in one ward, in one city? To answer this question, we examine the results of the Barrio Centro Community Safety Project (BCCSP) and the emergent practices of one neighborhood collective, Flowers & Bullets. We employ the term ‘abolitionist commoning’ to describe the centrality of land and place-making to recovering and building relations free from domination. In doing so, we advocate alongside a flock of scholars, organizers, and cultural workers for abolitionist models of safety that are place-based and emphasize experimentation, healing, self-determination, and (re)new(ed) modes of sociality.

SAT-434 Use of FibroScanto assess hepatic steatosis and fibrosis in community-based settings to promote clinical care linkages along the Southern Arizona United States/Mexico border

SAT-434 Use of FibroScanto assess hepatic steatosis and fibrosis in community-based settings to promote clinical care linkages along the Southern Arizona United States/Mexico border

Salud sin Fronteras: Identifying Determinants of Frequency of Healthcare Use among Mexican immigrants in Southern Arizona.

Guided by Andersen's Behavioral Model of Health Services Use (BMHSU), this study aimed to identify determinants of post-migration healthcare use among a sample of Mexican immigrants in a US-Mexico border region in Southern Arizona, while considering pre-migration health and healthcare experiences. A non-probabilistic convenience sample of 300 adult Mexican immigrants completed a telephone survey to assess healthcare practices. Multivariable logistic regressions were fitted to determine adjusted relationships between frequency of care and predisposing, enabling, need, and contextual factors as well as personal health practices. Overall, participants had a 79% probability of receiving healthcare "at least once a year" after migrating to Southern Arizona. Receiving post-migration healthcare was associated with predisposing, enabling, need, contextual factors, and personal health practices (p < 0.05). Consistent with BMHSU, our findings suggest that frequency of healthcare is not only a function of having post-migration health insurance but is also shaped by a complex array of other factors. The results of this study shed light onto potential areas to be leveraged by multifactorial sociocultural interventions to increase Mexican immigrants' frequency of healthcare services use.