Buenos Aires Research Articles

Market integration, empire and industry in the colonial economic development of the Buenos Aires meat industry (1770s–1800s)

ABSTRACT Building on recent literature on the history of political economy and Spanish imperial history, the article reconstructs the ideas that supported the colonial development of the meat industry in the Río de la Plata. Archival and printed sources are employed to illustrate the different arguments revolving around colonial economic development and imperial rule, in the words and practices of merchants, explorers, administrators and ministers. This way, it is possible to disclose the multiple imperial visions circulating in the Spanish Atlantic. The analysis suggests that economic reformism was not only a European intellectual and political movement but was shared and appropriated by Spanish Americans. They employed arguments in political economy to foster their agenda, namely the economic improvement of their territory in the broader context of the Spanish commercial empire. If a shared consensus around imperial political economy between Spanish and Spanish American vassals provided arguments supporting this colonial industry, the diverging economic interests, imperial rivalries, and the different geographical spaces of enunciation determined a variable dialectic between projects for the expansion of salted meat production and their realisation.

Celebrating 20 Years of Excellence: Latin American Pediatric Neurosurgery Course LACPN (2004-2024)

Two decades ago, a visionary initiative was launched in Latin America with the aim of advancing pediatric neurosurgery education and expertise across the region. Today, as we mark the 20th anniversary of the Latin American Pediatric Neurosurgery Course (LACPN), it is an opportune moment to reflect on its journey, celebrate its achievements, and chart a course for its continued success. The LACPN was established with a clear mission: to provide a platform for knowledge exchange, skill development, and collaboration among neurosurgeons dedicated to caring for children with neurological conditions. Designed to cover the major fields in Pediatric Neurosurgery, the scientific program is divided into annual courses over a 3-year cycle, with each biannual course is based on a four-day program divided in the morning sessions; lectures and case discussion an afternoon session; lectures, video session, "hand-on", and "solve a case". Following the ESPN post-graduate course and Asian-Australasian Course in Pediatric Neurosurgery program. At the heart of the LACPN's success lies its unwavering commitment to education and training, a culture of continuous learning and mentorship, the LACPN has not only raised the standard of care but also inspired a new generation of neurosurgeons dedicated to pediatric neurosurgery in the past 20 years. Over the past 18 years of LACPC more than 350 different trainees (from Brazil, Argentina, Chile, Colombia, Uruguay, Mexico, Venezuela, Bolivia, Cuba, Paraguay, and others) and 73 faculty invitees (from Brazil, Argentina, Chile, Mexico, USA, France, Italy, Costa Rica, Colombia, Turkish, Singapore, Spain, UK, and Australia, South Africa) have attended the course. In 2024, the LACPN become an official course of the Latin American Association for Pediatric Neurosurgery (ASOLANPED). This year the course was held in Pilar, Buenos Aires, Argentina, with the brilliant direction of Dr. Ramiro delRio and Dr. Sebastian G. Jaimovich. As we reflect on the past 20 years, it is evident that the LAPNC has made a profound impact on the field of pediatric neurosurgery in Latin America. Its legacy extends far beyond the confines of the operating room, encompassing a legacy of excellence, collaboration, and compassion that will continue to shape the future of pediatric neurosurgery for generations to come. As we celebrate this significant milestone, we are reminded that our work is far from complete. Challenges remain, ranging from disparities in access to care to the need for continued innovation and research. As we look ahead to the next 20 years and beyond, let us recommit ourselves to the pursuit of excellence, the advancement of knowledge, and the relentless pursuit of better outcomes for the children and families we serve.LACPN is a unique course! Friendship, collaboration and opportunities for everyone are the pillars of this course. In closing, we extend our heartfelt gratitude to all those who have contributed to the success of the Latin American Pediatric Neurosurgery Course over the past two decades – the organizers, faculty, participants, sponsors, and supporters. Your dedication, passion, and commitment have made this journey possible, and we look forward to continuing our shared mission of advancing pediatric neurosurgery in Latin America and beyond. Here's to 20 years of excellence, and to many more years of innovation, collaboration, and impact. See you in Rio de Janeiro 2024!!

Are genetic studies in Parkinson's disease necessary in clinical practice? Preliminary report of a cohort from Buenos Aires

Are genetic studies in Parkinson's disease necessary in clinical practice? Preliminary report of a cohort from Buenos Aires

The Aura and Eccentricity of Bibliomania in Buenos Aires

The Aura and Eccentricity of Bibliomania in Buenos Aires

Research note: Virtual historical archive of the Faculty of Psychology, University of Buenos Aires, Argentina.

This article describes the organization, operation, and contents of the Virtual Historical Archive of the Faculty of Psychology, University of Buenos Aires, Argentina. The organization of this archive started in 2008, as part of the activities planned by the Chair II of History of Psychology, and gained the support of the Faculty of Psychology. From its beginnings to the present, several documentary sources and materials related to the history of psychology in Argentina have been incorporated. It currently contains six thematic sections and three special collections, and it is expected that in the future it will be extended to other thematic areas. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The Proudest Street in the World: A Brief History of the Buenos Aires Pride March

The Proudest Street in the World: A Brief History of the Buenos Aires Pride March

BECK ANXIETY INVENTORY: MEASUREMENT INVARIANCE, LATENT MEAN COMPARISON, AND RELIABILITY IN ADULTS FROM BUENOS AIRES

This research aimed to provide new psychometric evidence of the Argentine Beck Anxiety Inventory (BAI) version in a sample of adults from Argentina. More specifically, the objectives were: 1) test the factor structure of the BAI; 2) assess gender, education, age, and region invariance; 3) test the latent factor mean difference across gender, education, age, and region; 4) analyze the reliability of the BAI; 5) provide population-based norms. The sample was composed of 1,410 adults ranging between 18 and 65 years (M = 32.41; SD = 10.45). Results showed that the BAI should be interpreted as unidimensional. Full configural, metric, and scalar invariance across gender, education, age, and region were obtained for the unidimensional model. The BAI presented adequate reliability values. Latent mean comparisons showed that men experienced more anxiety than women, that college-educated experienced more anxiety than non-college, that older people experienced more anxiety than younger people, and that people living in Greater Buenos Aires experienced more anxiety than those from Buenos Aires City. The BAI is an invariant measure of anxiety symptoms with good psychometric properties.

Post-surgery statin use contributes to favorable outcomes in patients with early breast cancer

BackgroundStatins are a group of lipid-lowering drugs with pleiotropic effects that include, but are not limited to the inhibition of cholesterol synthesis resulting in a wide range of anti-inflammatory, anti-tumor, immunomodulatory, and anti-thrombotic properties. This study aimed to determine the impact of the prior to- or after- breast surgery usage of statins on the tumor prognosis in breast cancer (BC) patients. MethodsA cohort of patients diagnosed with early invasive ductal BC (n=301) at the Hospital Italiano de Buenos Aires, Argentina, with a minimum follow-up period of 10 years after the surgical procedure were included and stratified according to the time of use of statins and type of statin used. Then, local relapse-free survival (RFS), metastasis-free survival (MFS), bone metastasis-free survival (BMFS), visceral metastasis-free (VMFS), mixed metastasis (bone and visceral)-free survival (mix-MFS) and overall survival (OS) were analyzed. ResultsStatins usage after breast surgery was related with lesser metastatic occurrence (p=0.017), lower number of metastatic foci (p=0.034) and fewer dead events (p=0.041), as well as longer MFS (p=0.013) and OS (p=0.027). When stratified by the nature of statins (hydrophilic or lipophilic), only the relatively hydrophilic statin rosuvastatin (ROSU) had an impact on the increase of MFS and OS (p=0.018 and p=0.030, respectively). ConclusionPost-surgery statins usage was associated with increased MFS and OS, with increased benefits of ROSU over simvastatin (SIM) or atorvastatin (ATOR). These results set the rationale for additional studies addressing the use of statins, and particularly, rosuvastatin, to improve the outcome of BC patients.

Design of a public science communication strategy on cultural heritageand local art in the center of the province of Buenos Aires (Argentina)

The communication of cultural heritage studies does not always constitute a central action of research projects. Therefore, the objective of this work is to present the design of a public science communication strategy on cultural heritage and local art in the district of Olavarría (Argentina). The proposal arises from the making of a documentary and its low visibility and exchange with the public. To achieve this, methodologically it is proposed to work from communication planning based on contextual models and citizen participation. The main result is the development of a communication strategy, based on transmedia formats and focused on the local educational sector. It concludes on the importance of articulating cultural heritage research with social sectors that are susceptible to becoming aware of their environment and that have a high potential to get involved in its protection and safeguarding.

Urban social movements as extended class actors: struggles over reproduction in Buenos Aires, New York City and Hamburg

Along with a resurgence in urban social movements (USMs) since the Global Financial Crisis in 2007–08 has come renewed interest in what form(s) of social struggle these movements represent. This is because USMs cannot be straightforwardly explained by the contradiction between capital and labour, as they happened outside the workplace. With the aim of conceptualising USMs, a comparative and empirical case study was conducted on urban development and protest in New York City, Buenos Aires and Hamburg. Approaches ranging from spatial theory to urban sociology and political economy informed the theoretical framework. The study was empirically based on 47 interviews with activists, as well as the observation of participants at protest events and document analysis (both of publications by urban protest initiatives and urban development statistics). Emerging similarities regarding the relational and cognitive structures of investigated protests suggest that contemporary USMs are collective actors counteracting urban dispossession and are thus linked to the capitalist mode of accumulation. Therefore, the article argues for an understanding of USMs as extended class struggles over social reproduction in the city. This terminology is intended not only to highlight that USMs are expressions of the crisis of social reproduction in cities, but also to categorise the characteristic features of USMs – which represent struggles for the use value of a city. USMs can, moreover, contribute to social change, especially if they are able to provide alternative means of social reproduction through the appropriation of urban space.

Quality of life in people with epilepsy: Associations with resilience, internalized stigma, and clinical factors in a low-income population

IntroductionEpilepsy is a common neurological disorder associated with comorbidities and a reduced quality of life (QoL). Internalized stigma is negatively correlatedwiththe QoL, whereas high levels of resilience are associated with increased QoL. Although the stigma towards people with epilepsy (PWE) is expected to be higher in low-income settings than in high-income settings, further research is needed. This study aimed to examine the extent to which resilience and internalized stigma correlatewith the QoL in PWE from a low-income population. Material and MethodsA cross-sectional, observational, descriptive study was conducted on 60 PWE who visited the Neurology Department of the Hospital de Clinicas (Buenos Aires, Argentina) between May and September 2022. Demographic and clinical data were collected. Participants completed the Quality of Life, Enjoyment and Satisfaction Questionnaire-Short Form (Q-LES-Q-SF), the Chronic Illness Anticipated Stigma Scale (CIASS), and the Resilience Scale (RS). Variables that showed a significant association with the QoL in the univariate analysis were included in a multiple regression model. ResultsParticipants had a low overall QoL score, with a median of 59 (95 %CI: 57.2–61.8). They had an average level of education and a high rate of unemployment. Perceived stigma was higher in the workplace than in the medical or family settings. Univariate analysis revealed that the QoL was associated with internalized stigma score, resilience score, seizure frequency, seizure etiology, work status, and educational level. The multiple regressionrevealed a significant decrease in the QoL when perceived stigma increased (p = 0.0016) or when the cause of epilepsy was structural (p = 0,006) and a significant increase in the QoL when the resilience score was higher (p = 0.0004). ConclusionThe QoL of PWE in a low-income context is strongly associated with their levels of resilience and internalized stigma. When addressing the social burden of epilepsy, resilience support should be increased in the care of PWE to reduce internalized stigma and improve the QoL.

Facing climate change: Range dynamics and chromosome diversity in Hedeoma multiflora Benth., a South American aromatic-medicinal plant at risk

Climate change could significantly affect the geographic distribution of plant species. Hedeoma multiflora is a vulnerable medicinal and aromatic herb that distributes in the Pampa, Espinal and Chaco biogeographic provinces in austral South America. This integrated approach combines ecological models and cytogenetic evidence to assess the effects of climate change on this species. Species distribution modelling using the Maxent model was implemented under current climatic conditions and three future climate change scenarios, integrating data from three Global Climate Models. The most suitable areas span 68,557 km2, encompassing the Sierras Pampeanas in San Luis and Córdoba provinces, and the Tandilia and Ventania systems in Buenos Aires, Argentina. The primary variables influencing the models include elevation (500 to 2000 m.a.s.l.), annual mean temperature (10 to 17 °C), annual precipitation (500 to 900 mm) and precipitation seasonality (50 to 75%). While the results project an expansion in the potential distribution of the species, heterogeneous patterns of range shifts are predicted across the three mountain systems: expansion in Sierras Pampeanas, march in Ventania and retraction in the Tandilia system. Variations in chromosome numbers within four distinct localities were reported, indicating the presence of polyploidy. This could potentially provide adaptive advantages in response to changing climates. This plant lives in habitats that face human-induced alterations and insufficient area protected coverage, then we propose strategies for both in situ and ex situ conservation of this medicinal species in each area.

Telemedicine in HIV health care during the COVID-19 pandemic: An implementation research study in Buenos Aires, Argentina.

From October 2020 to October 2022, we conducted an implementation study to offer telemedicine (TM) across four HIV units of general public hospitals in Buenos Aires. The intervention used TM to provide a continuum of care to patients with HIV. We used the RE-AIM framework to evaluate the strategy. The study started during a COVID-19 outbreak with strict lockdown policies and continued until return to normal practices. Implementation facilitation served as the core implementation strategy. We reached 4118 patients (58% of eligible individuals), and the main perceived benefits were the ability to avoid exposure to infectious diseases and reduced travel time and cost. After a median of 515 days of follow-up, 95.7% of participants with HIV were receiving antiretroviral therapy, and 87.8% were virally suppressed, with a median CD4+ count of 648 cells/μL. In total, 36.6% reported clinical events, and 20.4% presented with COVID-19 infection. The proportion of physicians adopting TM was 69.37%. After enrolment, 2406 of 5640 (43%) follow-up visits were conducted via TM. By the end of the study, 26.29% of appointments offered in the four centres were through TM, whereas 73.71% were in-person appointments. It was feasible to implement TM in the four centres in the public health sector in Buenos Aires, Argentina. It was acceptable for both patients and healthcare workers, and effectively reached a large proportion of the population served in these clinics. Both healthcare workers and patients consider it a model of care that will continue to be offered in the future.

Nonnormative Self-Translation and Code-Switching in Argentina ’s New Feminist and Queer Poetry

Abstract This article examines the poetry of feminist writer Dolo Trenzadora (b. 1985, Buenos Aires) and queer author Franco Rivero (b. 1981, Corrientes), two new voices in Argentine poetry who write in both Spanish and Guarani and reflect multilingual experiences emerging against the backdrop of a monolingual imaginary of nationhood. The analysis seeks to identify, within these writers’ most recent works, particular forms of “fragmentary intratextual self-translation” and to observe how, along with code-switching, these expressions of self-translation: (1) develop a nonnormative heterolingual discourse that defies monolingualism and troubles notions of national, gender, and sexual identity; and (2) resist monolingual models of Translation Studies.

Prevalence of Pathogens in Free-Living Adult Chimango Caracaras (Milvago chimango) in Three Areas with Different Levels of Urbanization in the Pampas Ecoregion, Argentina

ABSTRACT Urbanization can adversely impact animal populations through factors such as loss of natural habitat, introduction of nonnative competitors and predators, pollution, and increased exposure to pathogens. Because they are top predators, raptors are considered good indicators of ecosystem health. However, there is limited information about how environmental factors associated with urbanization can alter raptors’ susceptibility to pathogens. We evaluated exposure to selected pathogens of the Chimango Caracara (Milvago chimango), a generalist and opportunistic species endemic to South America. This species is distributed over a wide range of environments, including urban areas, and often takes advantage of human-generated resources such as domestic waste, urban garbage, and carrion, potentially increasing its exposure to pathogens. We captured adult Chimango Caracaras in three areas that varied in level of urbanization, in the southeastern region of the Buenos Aires Province, Argentina. Captured individuals were tested for exposure to Bacillus anthracis, Salmonella spp., and Trichomonas spp. All individuals tested were negative for these pathogens. Whether this represents a true lack of exposure to these microorganisms, the ability of this raptor to effectively inhibit the colonization of the gastrointestinal tract by these microorganisms, or an inability of the pathogen to colonize the Chimango Caracara’s gastrointestinal tract remains to be determined. This is the first study to assess the prevalence of selected pathogens in Chimango Caracaras inhabiting areas with different levels of urbanization.

Measuring local genetic variation in permethrin-resistant head lice (Phthiraptera: Pediculidae) from Buenos Aires, Argentina.

The cosmopolitan ectoparasite human head louse, Pediculus humanus capitis (De Geer)(Phthiraptera:Pediculidae), affects mostly school-aged children, with infestations reported every year mainly due to louse resistance to pyrethroids. One of the main resistance mechanisms of pyrethroids is the target site insensitivity (kdr), which is caused by single-nucleotide point mutations (SNPs) located in the voltage-sensitive sodium channel gene. In this study, we analyzed individual head lice toxicologically via the description of their susceptibility profile to permethrin and genetically through the genotypification of their kdr alleles as well as nuclear microsatellite loci. Lice were collected from 4 schools in the city of Buenos Aires, Argentina. The resistance ratios varied from 33.3% to 71.4%, with a frequency of the T917I kdr mutation of 87.31% and with 83.6% of the head lice being homozygous resistant to pyrethroids. Microsatellite data indicated that all the louse school populations had genotype proportions that deviated from Hardy-Weinberg expectations, with FIS > 0 reflecting a deficit of heterozygotes. Bottleneck analysis suggested that all louse school populations underwent a recent reduction in population sizes, while 3 of the 4 schools had gene flow values around 1, indicating ongoing gene flow among those schools. Our study suggests that school louse populations in the city of Buenos Aires may form a metapopulation, where each school represents a small population that undergoes extinction and recolonization processes under strong permethrin selection. This is the first multilevel analysis integrating toxicological, kdr-genotyping, and microsatellite data in human louse populations.

Chlamydia psittaci Screening of Animal Workers from Argentina Exposed to Carrier Birds.

Different syndromes are involved in human psittacosis (flu-like syndrome, atypical pneumonia up to lacrimal gland lymphoma). Diagnostic methods include serology, culture, and PCR. The rate of Chlamydia psittaci (Cp) positive tests among exposed workers is still unknown. Our study aimed to assess the rate of positive tests among workers who have contact with carrier birds in natural reserves from Buenos Aires, Argentina. Secondary aims were to analyze risk factors linked to these outcomes and the occurrence of signs that suggest psittacosis. Nasopharyngeal swabs and serum pairs were collected from employees who had interacted with confirmed carrier birds. Those with detectable DNA of Cp and/or anti-Chlamydia spp. antibody baseline titer ≥ 160mUI/ml, or at least quadruplicating, were considered positive. Activities performed with or near birds, personal protective equipment use, and previous chronic conditions were assessed. Possible Cp-related pathologies were evaluated during follow-up. A total of 63 exposed workers (71.4% men) with a median age of 35.7years (IQR 26-39) were evaluated to detect 28.6% positives. Respiratory chronic conditions were the unique factor associated with positive tests (OR 5.2 [1.5-18.5] p < .05). Surprisingly, about a third of the workers resulted positive and all responded to medical treatment, none developing an acute atypical pneumonia syndrome associated with classical presentation of psittacosis. Active testing for early diagnosis and proper treatment in zoological workers exposed to carrier or potentially carrier birds is strongly suggested as part of zoonotic diseases preventive measures.

Meridional analysis for calculation of the toric power of phakic IOLs.

To present a reproducible method to calculate the toricity needed at the intraocular lens (IOL) plane with toric phakic IOLs (ICL, Staar Surgical) and compare its results with those obtained with the online calculator provided by the manufacturer. Retrospective case series. Private practice, Buenos Aires, Argentina. The formula originally described by Holladay to calculate the IOL power in phakic eyes was used to calculate the required spherical power along the less refractive meridian and along the more refractive meridian. Meridional analysis was applied to calculate the required toricity at the IOL plane and the surgically induced corneal astigmatism was incorporated into the calculations. The refractive cylinder predicted by this method and by the online calculator of the manufacturer were compared to the postoperative refractive cylinder by means of vector analysis. The possible changes in the ratio of toricity in patients with different amounts of astigmatism and anterior chamber depth are assessed in a theoretical section. In 35 eyes, the measured mean postoperative refractive cylinder was 0.09 D @ 99°, the mean predicted postoperative refractive astigmatism was 0.04 D @ 102° according to the manufacturer's online calculator and 0.09 D @100° according to our method. With both methods, 91.43% of eyes had an absolute cylinder prediction error within ±0.50 diopters. The method described in this article to calculate the toricity of phakic IOLs has a refractive accuracy similar to that of the original calculator developed by the manufacturer.

Héctor Fernández-Álvarez (1944-2023).

This article memorializes Héctor Fernández-Álvarez (1944-2023). Héctor was an exceptional mentor, therapist, supervisor, professor, researcher, author, and leader, as well as a beloved brother, partner, father, and grandfather. The consummate renaissance person who embraced all manners of cultural expressions through an intentional wanderlust, he sought to understand all forms of human suffering and to alleviate senseless ones. Héctor's career spanned well over 5 decades. He received a licenciatura degree in 1967 from the University of Buenos Aires and a PhD in 1995 from the National University of San Luis, Argentina. Héctor held multiple academic appointments throughout Latin America and Spain. He authored over 100 journal articles or book chapters, and 16 books, including a novel, La Distancia (The Distance), and Fundamentals of an Integrated Model of Psychotherapy, one of the most respected psychotherapy books in Latin America and Spain. In 1977, Héctor challenged the constraints of a military dictatorship by founding Aiglé (the everlasting flame). Aiglé remains a nongovernmental organization that delivers clinical and community services and prepares mental health practitioners informed by an active research program that evaluates training and psychotherapeutic processes and outcomes. Over the years, Héctor advanced Aiglé as a practice-oriented research clinical setting to investigate psychotherapy as it unfolds in clinical practice. He developed an integrative model of care that resulted in Aiglé's cognitive-integrative model. Aiglé has grown to be a hallmark for research-based, leading-edge psychotherapy training in Latin America. Highlights of Héctor's career and professional contributions are noted. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Histopathological Lesions Caused by a Digenean Trematode in a Pest Apple Snail, Pomacea canaliculata, in Its Native Geographic Distribution Area.

Pomacea canaliculata is one of the most dangerous invasive species. Morphological and molecular analyses have revealed that a digenean species belonging to the family Echinostomatidae parasitizes this snail at two sites in Buenos Aires Province, Argentina, South America. Molecular results confirmed that the species belongs to a genus closely related to Patagifer. Analysis of the 28S rDNA showed that the sequences of the rediae and metacercariae are identical, indicating that the apple snail acts as the first and second intermediate host. The cercariae may encyst as metacercaria inside the redia and also emerge and re-infect the same snail or another snail. The prevalence of digeneans was higher in one of the sampling locations (15.1% vs. 0.72%), probably because the bird species that acts as the definitive host is more abundant in that area. Histopathological examination showed that the parasite quickly invades multiple host organs (gills, intestines, albumen gland, lung, kidney, and mantle border) besides the gonad and digestive gland, as is usual in digeneans. In addition, the partial or total castration of snails was observed in cases of moderate and high infection intensity. In males, there was loss of integrity in testicular tubules, while in females, the replacement of ovarian tissue by rediae was found.