Buenos Aires Research Articles

Transplantation in the Context of Migration and Refugees: A Summary of the DICG and TTS Ethics Committee Workshop, Buenos Aires, Argentina, September 2022.

Global conflicts and humanitarian crises have resulted in an unprecedented number of refugees and migrants. This challenges the limited resources of health care systems and jeopardizes the availability of transplant care for these deserving migrants and refugees. This was the basis for a workshop held during the Congress of the Transplantation Society (Buenos Aires, 2022). We elaborate on the proceedings of the workshop entitled "Transplantation in the Context of Migration and Refugees," organized by the Ethics Committee of The Transplantation Society and Declaration of Istanbul Custodian Group. Transplant providers from around the world shared strategies of how each region has responded to providing access to care for refugees and migrants in need of transplant services. The potential exploitation of this vulnerable group leading to illicit organ removal was addressed for each region. The Transplantation Society, Declaration of Istanbul Custodian Group, and global transplant community should continue to focus on the status of refugees and migrants and collaborate on strategies to provide access to transplant care for this deserving population. Global cooperation will be essential to provide vigilant oversight to prevent exploitation of this vulnerable population.

United we stand, divided we fall. Union organization and political activism among Jewish woodworkers in early-twentieth-century Buenos Aires

ABSTRACT This article focuses on the formation of the working class in Argentina, specifically within the Jewish East-European sector of the furniture industry during the early twentieth century. It examines Jewish immigration, their integration into the timber sector of Buenos Aires, and diverse labour relationships. Through an analysis of social and labour conflicts, the paper aims to study how Yiddish-speaking workers integrated into a highly cosmopolitan working class, put, at the same time, into a broader perspective of Jewish immigration into the Global South. By doing so, we hope to enhance our understanding of the significant role played by Jewish workers in the trajectory of the Argentine working class.

Description of the helminth community structure from two populations of Plains Viscacha (Rodentia: Chinchillidae) in semi-captive and wild conditions

Lagostomus maximus is a native rodent of South America that presents economic and biological importance. However, few studies on parasites of this rodent are available throughout its geographic distribution. The aim of this study was to explore, describe and compare the structure of helminth communities from 2 populations of L. maximus in semi-captive (SCHP) and wild (WHP) conditions in Buenos Aires Province, Argentina. The structure of helminth communities was studied considering ecological data at different levels. Seven helminth taxa were collected. Graphidioides spp. and Lagostonema ecasiense were the most prevalent species in SCHP, and Viannella viscaciae in WHP. This last species showed the highest values of mean intensity and mean abundance in both host populations. Helminths from SCHP showed higher values of abundance, mean intensity, mean abundance, diversity, and evenness, and lower values of specific richness and dominance than WHP. Specific richness, evenness and dominance allowed separating the 2 host populations. The abundances of V. viscaciae and Graphidioides spp. distinguished both host populations, suggesting possible influences of human intervention and/or environmental characteristics, as consequence of semi-captive and wild conditions.

Czy ufamy historii? Piotr Kowalewski Jahromi rozmawia z Veróniką Tozzi Thompson

In this interview, conducted during the XXIII International Congress of Historical Sciences in Poznan, Verónica Tozzi Thompson (professor of Philosophy of History at the University of Buenos Aires in Argentina) discusses historiography in Argentina and recent trends in historical theory, in particular the epistemology of the witness. She addresses important issues concerning key concepts for the philosophy and sociology of history: truth and trust. In addition, Tozzi Thompson discusses the differences and connections between analytic and narrativist philoso-phy of history and recommends some further readings.

Lung ultrasound is a promising screening tool to rule out interstitial lung disease in patients with rheumatoid arthritis.

It is still controversial how to screen for interstitial lung disease (ILD) in patients with rheumatoid arthritis (RA). We aimed to evaluate the performance of lung ultrasound (LUS) as a screening tool for RA-ILD and to compare it with the performance of chest auscultation, chest x-ray and pulmonary function tests (PFTs). Cross-sectional study of consecutive RA patients evaluated at a Rheumatology Clinic in Buenos Aires between January and December 2022. High-resolution computed tomography (HRCT) was the gold standard for diagnosing ILD and was performed within 30 days of the LUS, chest x-ray and PFTs. Investigators were blinded to HRCT results and patients' clinical data. LUS was performed by exploring 14 areas and was considered positive when the sum of B lines was ≥5. Performance for the diagnosis of ILD was reported for each diagnostic test. One hundred and six patients were included; 87 (82%) were women. Median age was 60.9 (±9.5) years-old. A total of 32 (30.2%, 95% CI: 21.6%-39.9%) had ILD. The sensitivity and negative predictive value of LUS were 90.6% (95% CI 75.0%-98.0%) and 94.7% (95% CI 85.4%-98.9%), respectively. LUS performance was superior to that of the other evaluated diagnostic tests for screening ILD. Given that the US is a low-cost point-of-care tool with a high negative predictive value, it is emerging as a valuable tool for ruling out ILD in patients with RA.

Wastewater surveillance of enteric viruses in eastern Argentina: High rates of detection and first report of NoV GI.5 and GII.20

Individuals infected with enteric viruses excrete them in their feces for an extended period, whether symptomatic or asymptomatic. This characteristic, combined with the capability of these viruses to persist in the environment, forms the core of our research. The objective of our study was to investigate the presence of viruses associated with diarrhea and hepatitis: Hepatitis A virus (HAV), Hepatitis E virus (HEV), Norovirus GI (NoV GI), Norovirus GII (NoV GII), and Rotavirus (RV) by RT-real time PCR, in untreated wastewater samples (n=100) collected in the period July 2020 to August 2021 from two low-income neighborhoods in the district of La Plata, Buenos Aires, Argentina. Globally, the percentage of positive samples was 25 % for HEV, 27 % for RV, 14 % for NoV GII, 1 % for NoV GI, and no detectable samples were found for HAV. HEV, RV, and NoV GII were detected in most of the studied months, with the highest detection rates of RV and NoV GII during the winter season. Regarding RV positive samples, the gene encoding the VP8* protein of three samples was sequenced and phylogenetic analysis revealed that the detected strains belonged to genotypes P[8] and P[3]. Additionally, four NoV strains were also genetically characterized by amplifying a fragment corresponding to the ORF-1/ORF-2 junction region. The identified strains were NoV GI.5, NoV GII.4, NoV GII.17 and NoV GII.20. Our results provide relevant information and serve as scientific evidence of the importance of considering wastewater analysis as a feasible strategy to determine the circulation of enteric viruses in the population, with the further benefit of predicting emerging strains. Moreover, this study represents the first report of the circulation of NoV GII.20 and GI.5 genotypes in our country.

The missing sedimentological section linking the Neogene and quaternary of the Tandilia system and the Salado basin, Buenos Aires province, Argentina

The Tandilia system and the Salado basin are two adjacent morphostructural units located within the Argentine Pampean plain, each exhibiting distinct and independent geological histories. The Tandilia system preserves outcrops of Argentina's oldest Proterozoic rocks, while the sedimentary record of the Salado basin began during the Jurassic period. However, starting in the Cenozoic era, both units began to display common continental sedimentary fill characteristics. Despite this connection between the Tandilia system and the Salado basin, there is no unified lithostratigraphic framework for the Cenozoic that varies according to the studied localities. This study aims to define the stratigraphy of a sedimentary section that demonstrates the link between these morphostructural units from the Neogene onwards and to correlate it with the formal lithostratigraphic frameworks proposed in the literature. The analysis of well records led to the description of lithofacies and the establishment of facies associations, which were integrated to generate three correlation transects between the wells. Four facies associations were identified, three of which were fluvial and one aeolian. The analysis of these facies associations revealed that the sedimentary fill could be divided into two sedimentary sequences, lower sedimentary sequence and upper sedimentary sequence, separated by a sequence boundary marked by conglomeratic deposits. The definition of a stratigraphic framework for the middle section of the Del Azul creek basin and its correlation with the formal lithostratigraphic frameworks of the region indicate that from the Neogene onwards, both morphostructural units, the Tandilia system and the Salado basin, share sedimentological and tectonic characteristics. This study highlights the significance of subsurface information in understanding the geology of plain areas and its influence on regional geological evolution.

[Scope and limitations of teleconsultation during the covid-19 pandemic: accounts from primary healthcare professionals in the Autonomous City of Buenos Aires].

The aim was to explore the scope and limitations of teleconsultation during the pandemic from the perspective of primary care physicians at the Hospital Italiano de Buenos Aires, a private institution located in the Autonomous City of Buenos Aires. A qualitative study was conducted with ten individual semi-structured interviews between January and April 2022. The three major emerging topics were the transition to virtuality, accessibility, and the new care model. Obstacles were related to the massive, forced, and unplanned implementation of teleconsultations. The main benefits included providing care during isolation-distancing and addressing epidemiological doubts. Changes were highlighted in care strategies, consultation frameworks, exchange among colleagues, referral criteria, requests for complementary studies, and in the profiles of those seeking consultations. A misuse of the system by individuals and a trivialization of the consultation moment emerged. The rise of communication and information technologies undoubtedly allowed the continuity of healthcare processes, but it does not replace in-person care, and normative guidelines are needed for its continuity.

Genotyping and clonal origin of Sporothrix brasiliensis in human sporotrichosis cases in Argentina

Sporothrix brasiliensis is considered a highly virulent emerging pathogen that causes sporotrichosis in humans, mainly after zoonotic transmission from infected cats. The epidemic of this zoonosis that originated from Brazil has spread in the last decades, generating hyperendemic regions in Latin America. We present two cases of human sporotrichosis causes by S. brasiliensis in Buenos Aires, Argentina, with good clinical response to differing treatments after contact with sick cats. Using Short tandem repeat (STR) genotyping, the two S. brasiliensis cases appear to be introduced from Brazil and likely originate from the same source.

Images of Cruelty, Schooling and Refuge Possibilities

Abstract This article describes the relationships between cruelty, schooling and the possibilities that the school offers as a refuge in the face of the inexorable circumstances that seal the fates of a large part of the population living in conditions marked by intensifying inequalities. The work is based on a multiple design which included an audiovisual production workshop in 2022 and 2023 involving students and teachers from a high school in the Buenos Aires metropolitan region and the university. Through the biographical-narrative method, students have carried out in-depth interviews, collaborative work and activities shared in the same school with one of the teachers for over three years. Research results express how, as perceived by high school students and teachers, the school serves as a space that saves others and themselves, a place of support, as well as transmission and education, even amidst instances of cruelty in their daily experiences.

Real Argentinian Food. Tensions and Conflicts in Value-Added Processes of Products to Commercialization and Tourism

Summary Wine and dulce de leche (Caramel sauce) were recognised as cultural national food heritage in Argentina due to their importance in daily consumption and gastronomic identity. The formal recognition aligns with global food valorisation processes, such as the United Nations Educational, Scientific and Cultural Organization’s (UNESCO) immaterial heritage and the importance of gastronomic tourism. Also, public policies in different countries seek to add value to food and beverages in order to foster the development of rural areas, favour tourism commercialisation, strengthen local identities and enhance traditional/ancestral knowledge. These show the symbolic and economic value of food. In this context, several types of formal certifications and commodification processes, which recognise territorial anchorage, of how certain food is produced and consumed may lead to its standardisation, homogenisation or monopolisation, generating various tensions. Hence, we question the relationship between those who promote value-adding initiatives, how farm producer communities participate in them, which sectors or actors really benefit from these processes and what tensions may arise from them. We will address these questions by reconstructing and analysing the heritage and tourism valorisation of high-altitude wine in the Calchaquíes Valleys area and dulce de leche production in the province of Buenos Aires. Information © The Authors 2024

Citizen-Led Environmental Governance: Regulating Urban Wetlands in South America

AbstractWetlands provide ecosystem services such as flood protection, improved water quality, and wildlife habitat, but are under attack in urban land-use conflicts in the Global South. This article presents two cases of local wetlands governance conflicts in Colombia (Humedal la Conejera, Bogotá, Cundinamarca) and Argentina (Laguna de Rocha, Esteban Echeverría, Gran Buenos Aires) to illustrate divergent pathways toward improved environmental governance via citizen pressures: the collaborative method (Bogotá) and the adversarial method (Buenos Aires). While existing scholarship on citizen-led regulation stresses the importance of collaboration between community organizations and the state, this article argues that adversarial tactics are also a key component of environmental governance. In both cases, citizen-led pressures led to increased enforcement of regulatory measures to restore wetlands and gain protected-area status. Citizen-led governance involved adversarial strategies such as marches, litigation, and shaming and blaming in the media, as well as collaborative strategies such as creating broad-based educational forums, working inside city government, and partnering directly with public institutions to set new policies. Against the backdrop of extensive collusion between elected officials and land developers, citizen-led subnational environmental governance has become the regulatory regime of last resort in urban Latin America.

Impact of the COVID-19 vaccination campaigns in Argentina during 2021: An observational quantification of the death probability for confirmed cases in Buenos Aires province

BackgroundA SARS-CoV-2 (COVID-19) vaccination campaign was launched in Argentina in January 2021. The vaccines then available were administered to the population in several different schemes. This observational study presents a quantification of the impact of the different schemes on the probability of death for confirmed COVID-19 cases in Argentina's Buenos Aires Province. The results provide a local measure of the schemes' effectiveness that heretofore has been lacking. MethodsThe study's main source of information is the Integrated Health Information System database, which contains 1,538,113 records of confirmed SARS-CoV-2 (COVID-19) cases reported in 2021 in the Province. To assess the real-world effectiveness of the vaccination campaign, two categorical variables representing vaccination status were defined. Probability of death was formulated as a generalized linear model with a logistic link and includes variables for geography, a socio-economic level index, symptom onset, sex, and vaccination status. The effectiveness level was derived from the death probability estimates. FindingsThe study's findings indicated that the most effective vaccine was rAd26-rAd5 (Sputnik), with ChAdOx1-S (AZ/Covishield) and BBIBP-CorV (Sinopharm) following in efficacy, for both single and multiple doses. The effectiveness of a single dose was consistently below 50%, while it ranged from 50% to 90% for two or more doses. Notably, the analysis of variables such as the municipality of residence of the infected persons and the season of symptom onset yielded particularly intriguing insights. The socioeconomic level of a municipality emerged as a moderately strong predictor of the probability of death, which was marginally higher in municipalities with lower-income populations. Additionally, the data revealed an increased probability of death during the winter season. InterpretationThe vaccination campaigns carried out in Buenos Aires Province in 2021 significantly contributed to reducing the number of deaths due to SARS-CoV-2 (COVID-19) among its population. However, the extent of this impact varied considerably depending on individual characteristics such as age, health status, and vaccination schedule adherence.

Species Richness and Composition of Forest Birds in Urban Parks and Reserves of Buenos Aires City, Argentina.

Urbanization is among the main factors of ecosystem transformation and threats to global biodiversity. Urban green spaces provide multiple services, being important for biodiversity and human well-being. However, the relationship between green spaces and forest birds has been scarcely studied in the Global South. In this work, we used citizen science data (eBird) to assess the variation in the species richness and composition of forest birds in two types of public urban green spaces characterized by different vegetation composition and management: parks and reserves. In general, reserves had more native and unmanaged vegetation than parks. We selected parks and reserves located in the coastal area of the Metropolitan Area of Buenos Aires, Argentina. Sampling effort was considered as the number of checklists for each site. The database allowed information to be extracted from 12 sites and 33 species. The most common species were the Green-barred Woodpecker (Colaptes melanochloros), the Narrow-billed Woodcreeper (Lepidocolaptes angustirostris), and the White-crested Tyrannulet (Serpophaga subcristata). Bird species richness was higher in reserves than in parks and was positively related to sampling effort. The forest bird species composition varied according to the type of green area and sampling effort. Species composition showed a significant nestedness, with the least rich sites being a subset of species from the richest sites. Reserves and sites with the highest sampling effort concentrated all species. The results obtained show the importance of urban reserves in the conservation of forest birds.

Cost of illness due to respiratory syncytial virus acute lower respiratory tract infection among infants hospitalized in Argentina

BackgroundInformation is scarce regarding the economic burden of respiratory syncytial virus (RSV) disease in low-resource settings. This study aimed to estimate the cost per episode of hospital admissions due to RSV severe disease in Argentina.MethodsThis is a prospective cohort study that collected information regarding 256 infants under 12 months of age with acute lower respiratory tract infection (ALRTI) due to RSV in two public hospitals of Buenos Aires between 2014 and 2016. Information on healthcare resource use was collected from the patient’s report and its associated costs were estimated based on the financial database and account records of the hospitals. We estimated the total cost per hospitalization due to RSV using the health system perspective. The costs were estimated in US dollars as of December 2022 (1 US dollar = 170 Argentine pesos).ResultsThe mean costs per RSV hospitalization in infants was US$587.79 (95% confidence interval [CI] $535.24 – $640.33). The mean costs associated with pediatric intensive care unit (PICU) admission more than doubled from those at regular pediatric wards ($1,556.81 [95% CI $512.21 – $2,601.40] versus $556.53 [95% CI $514.59 – $598.48]).ConclusionsThis study shows the direct economic impact of acute severe RSV infection on the public health system in Argentina. The estimates obtained from this study could be used to inform cost-effectiveness analyses of new preventive RSV interventions being developed.

Energy Costs and Greenhouse Gas Emissions of Giant Reed (Arundodonax L.) Production for Use as a Bioenergy Vector

This study estimates the energy costs and greenhouse gas emissions for the production and the processing for thermal use of Giant reed ( Arundo donax L.), a second-generation perennial energy crop. The agronomic study took place in Buenos Aires (Argentina) under humid to subhumid climatic conditions. Rhizomes and in vitro micropropagated plantlets were employed and cultivated under both fertilization and rainfed conditions during 2018–2022. The yield demonstrated a substantial increase from 3.8 t/ha to 23.1 t/ha from implantation to crop setting. Throughout this period, the energy input escalated from 23 to 70 GJ/ha, with the planting phase exhibiting the highest energy intensity. This surge can be attributed to the use of herbicides, accounting for 44.1%–61.3% of the energy consumed. Energy outputs were 17 (±0.19) MJ/kg as the low heating value obtained from the biomass elemental composition. The net energy yield for the 10-year lifecycle resulted in 2851.3 (±20.2) GJ/ha, and the output/input ratio varied from 41 (for pellets) to 126 (for chips). Carbon emissions ranged from 343.9 (for plantlets) to 371.9 (for rhizomes) kg CO2e/ha during the implantation stage, resulting in 208.3, 397.6, and 859.6 kg CO2e/ha for chips, bales, and pellets, respectively. This study reinforced the knowledge about the farming of this energy crop and displayed a promising scenario for the sustainable development of the Arundo donax L. based value chain. JEL Classification Q4, Q43, Q56

Landscape and farm environmental structure determinants of small mammal assemblages in agroecosystems of central Argentina

Abstract Natural processes and patterns are altered by human activity at different spatial and temporal scales, affecting species assemblages and population traits, modifying mechanisms or regulating dynamics at different scales. However, little is known about the influence of landscape structure on small mammal assemblages and populations on farms. Thus, in this work, we aimed to study the effect of landscape and environmental characteristics at the farm scale on the assemblage and populations of native and introduced small mammals in pig and dairy farms located in Buenos Aires province, Argentina. Our results showed that farms in contexts of higher environmental diversity at the landscape scale have higher species richness. Our results also showed that variations in assemblage composition were associated with the quantity of water body surfaces, cattle food, small mammal refugia, and impervious surfaces at the farm scale—and with woodland, grassland, and natural vegetation cover at the landscape scale. The abundance of commensal murids was higher on farms near towns, with higher vegetation cover at the farm scale and/or in landscape contexts with fewer crops. The abundance of Akodon azarae was higher on farms with a lower amount of cattle food at the farm scale and crop patches in the landscape. The abundance of Didelphis albiventris was higher during spring on farms with a low proportion of bare ground, while that of Lutreolina crassicaudata was higher on farms with high vegetation cover and a lower number of water body surfaces. These results show the relevance of multiscale determinants in the development of ecologically based management strategies to control pest small mammals.

Clinical predictors of coronary artery bypass graft surgery in patients hospitalized for Non-ST acute coronary syndrome - Buenos Aires I and ReSCAR22 registries.

To identify predictors of coronary artery bypass graft surgery (CABG) requirement as a revascularization method in in real-world non-ST-segment elevation acute coronary syndrome (NSTE-ACS) patients. . An individual pre-specified analysis of patients with NSTE-ACS was performed from two prospective Argentine registries between 2017 and 2022. We analyzed the difference in baseline characteristics between patients who required CABG and those who did not require this intervention. Then, a logistic regression analysis was performed to determine independent predictors in patients who received CABG as a method of revascularization. A total of 1848 patients with a median age of 54.8 (interquartile range [IQR]: 53.7-56) years and an ejection fraction of 42.1% (IQR: 41.2-43.1) were included. A total of 233 patients required CABG (12.6%). Baseline characteristics between the two groups were similar, except in patients requiring CABG, who were younger (51.5 vs. 55.7 years; p=0.010), more frequently diabetic (38.2% vs. 25.7%; p=0.001) and male (90.1% vs. 73.7%; p=0.001). In addition, they had, to a lesser extent, previous cardiac surgery (2.1% vs. 11.2%; p=0.011). After multivariable analysis, the following were independently associated with CABG: age (Odds Ratio [OR]: 0.99, 95% confidence interval [CI]: 0.98-0.99; p=0.008), male sex (OR: 3.08, 95% CI: 1.87-5.1; p=0.001), history of previous CABG (OR: 0.14, 95% CI: 0.05-0.30; p=0.001) and diabetes (OR: 1.84, 95% CI: 1.31- 2.57; p=0.001). In this analysis of two NSTEACS registries, younger age, male sex, a diagnosis of diabetes and the absence of previous surgery were independent predictors of the requirement for inpatient CABG.

A Desire Seeks Its Dwelling: Gendering Literature Teaching from the Contributions of Feminist Pedagogies

In this article I set about theorising the construction of a gendered didactic of literature, one that accounts for alternative ways of reading and approaching literary texts in school settings. Throughout my article, I intend to trouble literary reading practices insofar as they are socio-cultural, embodied, and sexed-and-gendered in nature. To do so, I will borrow from literature teaching experiences set in high schools 1 from the Buenos Aires province (Argentina). My writing will analyse pedagogical accounts of classroom happenings from the theoretical contributions of language and literature teaching, as well as from feminist, queer, and decolonial epistemologies and pedagogies. These theoretical approaches propose grappling with literature from local and embodied stances – against the grain of a colonial, capitalist, white, androcentric, encyclopaedistic, and hetero-cisnormative matrix – and, from that locus, seek to produce insights about alternative ways of conceptualising knowledge, pedagogical relationships, and the very subjects engaged in teaching and learning in pedagogical settings.

Living with Inflation in Argentina

Argentina has been burdened for many decades with high inflation, reaching three or even four digits in hyperinflationary periods. The recurring price spirals in Argentine history, particularly since the beginning of the current century, have affected the middle class’s perception of the present and the future, constructing what can be called an inflationary experience. Governments from across the political spectrum have failed to solve the problem, leading to the election of a radical outsider candidate as president in 2023. This article examines the ways in which the middle class in Buenos Aires copes with inflation, and how the experience of chronic inflation and crisis produces ways of coping that at the same time may generate more inflation.