Hasil untuk "Latin America. Spanish America"

América Y. Torres-Boy, Anoushka Ghosh, Myles B. T. Osenton et al.

We report on the control and characterization of the isomer population of ions inside superfluid helium nanodroplets, using two-color operation of a dual-oscillator infrared free-electron laser. The timing of both lasers is highly synchronized, and their frequencies (or "colors") can be tuned independently over a wide range. Interaction of the singly deuterated proton-bound dimer of dihydrogen phosphate and formate inside helium nanodroplets with both colors enables the control over its isomer population and the recording of - one-color hidden - infrared spectra of individual isomers.

Joseph Ariel Tello Carvache, Jorge Alejandro Moncayo Correa, Carlos Sempertegui Seminario

Given the hyperinflation that most of the Latin American countries suffered in the 90 and their decision towards adopting dollarization and in most cases keeping their own currency, this paper analyzes the effectiveness of dollarization as a protective mechanism against economic disruptions in Latin American countries. It assesses the context that led Latin American dollarized countries to dollarize and analyzes CPI, GDP, and the poverty rates pre, during, and postpandemic in Latin American countries, considering those that are dollarized and those that are not, and evaluating its relation to the US. Interviews were carried out with experts in the field. It assesses the advantages and disadvantages of dollarization regarding global crises. The data was compared and analyzed to check if there were patterns that support the paper objective which is that dollarization might serve as a protective mechanism against economic disruption. It was found that dollarization protects the economy against inflation, however, it does not fully protect the economy when considering economic performance and poverty. In conclusion, this research concludes that dollarization does not completely serve as a protective mechanism against economic disruptions nonetheless, it found that a bigger role is played by domestic policies and government action.

Martin Capdevila, Esteban Villa Turek, Ellen Karina Chumbe Fernandez et al.

Large language models are, by definition, based on language. In an effort to underscore the critical need for regional localized models, this paper examines primary differences between variants of written Spanish across Latin America and Spain, with an in-depth sociocultural and linguistic contextualization therein. We argue that these differences effectively constitute significant gaps in the quotidian use of Spanish among dialectal groups by creating sociolinguistic dissonances, to the extent that locale-sensitive AI models would play a pivotal role in bridging these divides. In doing so, this approach informs better and more efficient localization strategies that also serve to more adequately meet inclusivity goals, while securing sustainable active daily user growth in a major low-risk investment geographic area. Therefore, implementing at least the proposed five sub variants of Spanish addresses two lines of action: to foment user trust and reliance on AI language models while also demonstrating a level of cultural, historical, and sociolinguistic awareness that reflects positively on any internationalization strategy.

Gianna Williams, Maya De Los Santos, Alexandra To et al.

The global AI surge demands crowdworkers from diverse languages and cultures. They are pivotal in labeling data for enabling global AI systems. Despite global significance, research has primarily focused on understanding the perspectives and experiences of US and India crowdworkers, leaving a notable gap. To bridge this, we conducted a survey with 100 crowdworkers across 16 Latin American and Caribbean countries. We discovered that these workers exhibited pride and respect for their digital labor, with strong support and admiration from their families. Notably, crowd work was also seen as a stepping stone to financial and professional independence. Surprisingly, despite wanting more connection, these workers also felt isolated from peers and doubtful of others' labor quality. They resisted collaboration and gender-based tools, valuing gender-neutrality. Our work advances HCI understanding of Latin American and Caribbean crowdwork, offering insights for digital resistance tools for the region.

Reina Camacho, Melissa Cruz, Salvatore Mele et al.

This document collects input from Latin America as a contribution to the Update of the European Strategy for Particle Physics. It emerges from a survey of members of the Latin American Association for High Energy, Cosmology and Astroparticle Physics (LAA-HECAP) that collected data in February and a subsequent town-hall meeting, inspired by the ECFA guidelines for national communities. This contribution first reviews the Latin American participation at CERN, provides background on LAA-HECAP, and then presents the survey methodology and its results. Some conclusions are drawn based on the results of the survey.

Sartori, Rodrigo Francisco Browne

Este trabalho propõe uma discussão sobre o que se entende por pós-ditadura como parte da comemoração dos 50 anos do golpe de Estado no Chile. Para isso, retoma-se a discussão teórica entre ditadura e pós-ditadura e sobre como suas aplicações afetaram o devir das atuais democracias. Democracias que são sequelas comprometidas com um modelo de mercado que impera desde as políticas de Augusto Pinochet. Como reação a estas políticas, “Chile desper-tó”, deixando marcas indeléveis através de explosões sociais, mobilizações feministas e revoltas estudantis. Manifestações que questionaram as “condições” impos-tas pelo sistema e convidaram a pensar, por exemplo, em universidades “sem condição” e, inclusive, em sociedades “sem condição”. Finalmente, o anterior se exemplificará com um encontro entre literatura e teatro, que recorda o ocorrido em duas ditaduras – chilena e uruguaia – que coincidem na data dos 50 anos. Trata--se de sociedades “sem condição” representadas na obra Primavera com um canto quebrado, do escritor uruguaio Mario Benedetti (1982) e da montagem do mesmo nome da companhia chilena ICTUS (1984). Ações que escapam das memórias oficiais e distam dos discursos de autoridade que fazem do esquecimento o centro da memória

Haarika Manda, Varshika Srinivasavaradhan, Laasya Koduru et al.

Residential fixed broadband internet access in the United States (US) has long been distributed inequitably, drawing significant attention from researchers and policymakers. This paper evaluates the efficacy of the Connect America Fund (CAF), a key policy intervention aimed at addressing disparities in US internet access. CAF subsidizes the creation of new regulated broadband monopolies in underserved areas, aiming to provide comparable internet access, in terms of price and speed, to that available in urban regions. Oversight of CAF largely relies on data self-reported by internet service providers (ISPs), which is often questionable. We use the broadband-plan querying tool (BQT) to curate a novel dataset that complements ISP-reported information with ISP-advertised broadband plan details (download speed and monthly cost) on publicly accessible websites. Specifically, we query advertised broadband plans for 687k residential addresses across 15 states, certified as served by ISPs to regulators. Our analysis reveals significant discrepancies between ISP-reported data and actual broadband availability. We find that the serviceability rate-defined as the fraction of addresses ISPs actively serve out of the total queried, weighted by the number of CAF addresses in a census block group-is only 55%, dropping to as low as 18% in some states. Additionally, the compliance rate-defined as the weighted fraction of addresses where ISPs actively serve and advertise download speeds above the FCC's 10 Mbps threshold-is only 33%. We also observe that in a subset of census blocks, CAF-funded addresses receive higher broadband speeds than their monopoly-served neighbors. These results indicate that while a few users have benefited from this multi-billion dollar program, it has largely failed to achieve its intended goal, leaving many targeted rural communities with inadequate or no broadband connectivity.

Tony Montes, Laura Manrique-Gómez, Rubén Manrique

This paper explores the evolution of word meanings in 19th-century Spanish texts, with an emphasis on Latin American Spanish, using computational linguistics techniques. It addresses the Semantic Shift Detection (SSD) task, which is crucial for understanding linguistic evolution, particularly in historical contexts. The study focuses on analyzing a set of Spanish target words. To achieve this, a 19th-century Spanish corpus is constructed, and a customizable pipeline for SSD tasks is developed. This pipeline helps find the senses of a word and measure their semantic change between two corpora using fine-tuned BERT-like models with old Spanish texts for both Latin American and general Spanish cases. The results provide valuable insights into the cultural and societal shifts reflected in language changes over time.

Claudia Varella Fernández

Protagonistas de nuevos mecanismos de suministro de mano de obra barata, la mayoría de los aprendices de oficio en la Cuba del siglo XIX vivió una realidad influida negativamente por la esclavitud, mientras crecía la demanda de fuerza de trabajo en las plantaciones. La servidumbre por contrato fue absorbida por la esclavitud. El hecho de que la esclavitud africana alcanzara en ese siglo su punto álgido en la colonia española interfirió en la visión y las actuaciones de las autoridades de la isla sobre el sistema de aprendizaje de artes y oficios. Este artículo se propone, con fuentes hemerográficas y de archivo, tratar las limitaciones de dicho sistema y cubrir las razones del afán institucional por incentivar, en una aparente inclusión, la participación y acreditación de los artesanos de color en la vida urbana. La investigación concluye que los aprendices esclavizados, cuando eran "negros" o mediaba de algún modo la variable de color, no se distinguían de los aprendices afrodescendientes de condición libre.

Yiyi Chen, Johannes Bjerva

Colexification refers to linguistic phenomena where multiple concepts (meanings) are expressed by the same lexical form, such as polysemy or homophony. Colexifications have been found to be pervasive across languages and cultures. The problem of concreteness/abstractness of concepts is interdisciplinary, studied from a cognitive standpoint in linguistics, psychology, psycholinguistics, neurophysiology, etc. In this paper, we hypothesize that concepts that are closer in concreteness/abstractness are more likey to colexify, and we test the hypothesis across indigenous languages in Americas.

Manuel Mager, Rajat Bhatnagar, Graham Neubig et al.

Neural models have drastically advanced state of the art for machine translation (MT) between high-resource languages. Traditionally, these models rely on large amounts of training data, but many language pairs lack these resources. However, an important part of the languages in the world do not have this amount of data. Most languages from the Americas are among them, having a limited amount of parallel and monolingual data, if any. Here, we present an introduction to the interested reader to the basic challenges, concepts, and techniques that involve the creation of MT systems for these languages. Finally, we discuss the recent advances and findings and open questions, product of an increased interest of the NLP community in these languages.

L. Francisco Letelier Troncoso, Juan Pablo Paredes, Victor Fernández González et al.

Este artículo compara dos procesos comunitarios vecinales que han tenido lugar en una ciudad intermedia de la zona central de Chile. El primero de ellos tuvo lugar antes del estallido social de 2019 y el segundo se originó a partir de este. En ambos casos se observan articulaciones y vínculos que, por un lado, traspasan los límites político-administrativos establecidos por la forma dominante de concebir lo vecinal y, por otro complejizan las agendas comunitarias. Sin embargo, existe entre ellos diferencias importantes. En el primero, pre estallido, se aprecia un proceso estado-céntrico: los esfuerzos de la articulación se orientan a la búsqueda de respuesta del estado. En el segundo, originado a partir del estallido, el proceso es más bien socio-céntrico: los esfuerzos apuntan a fortalecer las propias redes comunitarias y su autonomía. Este proceso, socio-céntrico, reticular y performático, da pistas para pensar lo vecinal. Si bien las experiencias que habíamos estudiado antes muestran un incremento del poder de las organizaciones para intermediar, este sigue estando sujeto a las formas estatales de gestionar lo social. En cambio, aquí aparece lo comunitario como esfera autónoma: no existe para dirigirse al estado, sino que para reproducirse a sí mismo.  

C. A. Serrano-Juárez, Carolina Reyes-Méndez, Belén Prieto-Corona et al.

Abstract Objective The objective of this study is to propose a TeleNP model for remote assessment and offer practical recommendations for clinical practice with patients in Mexico and Latin America, based on a systematic literature review and clinical experience. Method A systematic review of studies from 2011 to 2021 in English and Spanish used TeleNP, teleneuropsychology, telepsychology, online, assessment, teleneuropsicología, and evaluación for the search; the databases examined included PubMed, BiDi UNAM, ScienceDirect, Google Scholar, and Wiley One Library; the Oxford Centre for Evidence-Based Medicine system was used to grade the levels of evidence. The experience of the last two years of students and faculty in the Master’s and Doctoral Programs in Psychology, Clinical Neuropsychology Residency Program, was also used as a basis for this guide. Results We propose a clinical model for TeleNP assessment in Mexico and Latin America based on the review of 31 articles and the practice of professors and students of clinical neuropsychology. Conclusion The proposed model describes a procedure and adaptations for home-to-home clinical practice in the neuropsychological assessment of Mexican patients that could also be used in other Latin American countries. Its reliability remains to be assessed, but this model and the suggestions proposed could be used in future studies and clinical trials for Mexican and Latin American populations.

C. S. Paula, Sebastián Cukier, G. Cunha et al.

Lack of access to services and support is an important issue for people with autism, but in low- and middle-income countries there is a lack of data on this problem. The aims of this study were to describe the challenges and priorities, identify barriers to care, and map stigma among families of individuals with autism in Latin America. This survey was undertaken by the Red Espectro Autista Latinoamerica network, a coalition of researchers/clinicians from six Latin American countries; it comprised 2942 caregivers of children with autism from Brazil, Argentina, Chile, Uruguay, Venezuela, and the Dominican-Republic, who completed the Spanish/Portuguese version of the Caregiver Needs Survey. The survey showed that the main priorities were greater community awareness and improvements in education. The main barriers to care were waiting lists (50.2%), treatment costs (35.2%), and lack of specialized services (26.1%). Stigma experienced by families was frequent: one-third reported feeling discriminated against and helpless for having a child with autism, 48.8% reported some type of financial problem, 47.4% had to reduce work hours, and 35.5% had to stop working because of their child’s autism. This survey describes the main needs/challenges faced by individuals with autism in Latin America, helping to build data-driven strategies at a national/regional level. Lay abstract Approximately 6 million individuals with autism spectrum disorder live in Latin America. In order to strengthen autism spectrum disorder research collaborations and awareness in the region, the Latin American Autism Spectrum Network (Red Espectro Autista Latinoamerica) was constituted in 2015, comprising researchers and clinicians from the following six countries: Brazil Argentina, Chile, Uruguay, Venezuela, and the Dominican Republic. This first multisite study from the Red Espectro Autista Latinoamerica network aims to describe the challenges and priorities to identify barriers to care and to map stigma among families of individuals with autism spectrum disorder living in Latin America. A total of 2942 caregivers from these six countries completed an online survey showing that the main priorities were greater community awareness and improvements in the educational system for individuals with autism spectrum disorder. In addition to that, the main barriers to care were related to lack of structure, mainly waiting lists (50.2%), high treatment costs (35.2%), and lack of specialized services (26.1%). Stigma experienced by families was frequent: one third reported feeling discriminated against and helpless for having a child with autism spectrum disorder. Also, 48.8% of the caregivers declared financial problems, 47.4% of them had to cut down work hours, and 35.5% had to leave their jobs because of their child’s autism spectrum disorder. This is a pioneer study providing a description of the needs and challenges faced by families affected by autism spectrum disorder in Latin America, helping to build data-driven strategies at the national and regional levels.

I. Martin-de-Santos

Macroeconomic data on the Spanish economy during the Second Republic is not accurate, the interpretation of historical events from the figures obtained is divergent and misleading. Hasty laws were enacted in attempts to resolve social problems arising mainly from deep economic inequalities, but they were often nothing more than declarations of good intentions. Spain suffered in the aftermath of the international economic downturn as it began to be felt at the end of the dictatorship of General Primo de Rivera. Economic policy was developed under the Constitution,but, despite the differences between the first and second biennium, there was a tendency to maintain the guidelines from the previous stage and in general, sometimes unfairly, it aimed at least to avoid the destabilization of the financial system. Nonetheless, it ultimately failed to achieve its goals, mainly because of the frequent changes of government mediated by a social crisis of greater significance that had relegated economic issues into the background.

H. Aihara, A. Aranda, R. Camacho Toro et al.

For the first time the scientific community in Latin America working at the forefront of research in high energy, cosmology and astroparticle physics (HECAP) have come together to discuss and provide scientific input towards the development of a regional strategy. The present document, the Latin American HECAP Physics Briefing Book, is the result of this ambitious bottom-up effort. This report contains the work performed by the Preparatory Group to synthesize the main contributions and discussions for each of the topical working groups. This briefing book discusses the relevant emerging projects developing in the region and considers potentially impactful future initiatives and participation of the Latin American HECAP community in international flagship projects to provide the essential input for the creation of a long-term HECAP strategy in the region.

Shuo Kong, Héctor G. Arce, John M. Carpenter et al.

We present the first results from a CARMA high-resolution $^{12}$CO(1-0), $^{13}$CO(1-0), and C$^{18}$O(1-0) molecular line survey of the North America and Pelican (NAP) Nebulae. CARMA observations have been combined with single-dish data from the Purple Mountain 13.7m telescope to add short spacings and produce high-dynamic-range images. We find that the molecular gas is predominantly shaped by the W80 HII bubble that is driven by an O star. Several bright rims are probably remnant molecular clouds heated and stripped by the massive star. Matching these rims in molecular lines and optical images, we construct a model of the three-dimensional structure of the NAP complex. Two groups of molecular clumps/filaments are on the near side of the bubble, one being pushed toward us, whereas the other is moving toward the bubble. Another group is on the far side of the bubble and moving away. The young stellar objects in the Gulf region reside in three different clusters, each hosted by a cloud from one of the three molecular clump groups. Although all gas content in the NAP is impacted by feedback from the central O star, some regions show no signs of star formation, while other areas clearly exhibit star formation activity. Other molecular gas being carved by feedback includes the cometary structures in the Pelican Head region and the boomerang features at the boundary of the Gulf region. The results show that the NAP complex is an ideal place for the study of feedback effects on star formation.

Adriana Guadalupe Alonso Rivera

This research attempts to present a journey through the different methods New-Spain art historiography has approached the corporate portraiture phenomenon inscribed in the female monastic context, displaying a general overview of the issues that tend to take place when addressing the series of calculated or conventional strategies formulated expressly for this set of representations. Thus, it goes beyond totalitarian genders such portraitures have agglutinated, such as “crowned nuns” or “religious painting of the 18th century”. In addition to it, the article questions prejudices around an alleged pictorial quality in function of the mimetic potential and the decorative features of these representations, encouraging new research axes evidencing their own variables, behaviors, and relations from particular theoretical, formal, corporate, and experiential approaches.

Min Fang, Lynne A. Hillenbrand, Jinyoung Serena Kim et al.

We present a spectroscopic survey of over 3400 potential members in the North America and Pelican nebulae (NAP) using several low-resolution ($R\approx$ 1300-2000) spectrographs: Palomar/Norris, WIYN/HYDRA, Keck/DEIMOS, and MMT/Hectospec. We identify 580 young stars as likely members of the NAP region based on criteria involving infrared excess, Li I 6708 absorption, X-ray emission, parallax, and proper motions. The spectral types of individual spectra are derived by fitting them with templates that are either empirical spectra of pre-main sequence stars, or model atmospheres. The templates are artificially veiled, and a best-fit combination of spectral type and veiling parameter is derived for each star. We use the spectral types with archival photometry to derive $V$-band extinction and stellar luminosity. From the H-R diagram, the median age of the young stars is about 1 Myr, with a luminosity dispersion of $\sim$0.3--0.4 dex. We investigate the photometric variability of the spectroscopic member sample using ZTF data, and conclude that photometric variability, while present, does not significantly contribute to the luminosity dispersion. While larger than the formal errors, the luminosity dispersion is smaller than if veiling were not taken into account in our spectral typing process. The measured ages of stellar kinematic groups, combined with inferred ages for embedded stellar populations revealed by Spitzer, suggests a sequential history of star formation in the NAP region.

Reza Mousavi, Bin Gu

On April 16th, The White House launched "Opening up America Again" (OuAA) campaign while many U.S. counties had stay-at-home orders in place. We created a panel data set of 1,563 U.S. counties to study the impact of U.S. counties' stay-at-home orders on community mobility before and after The White House's campaign to reopen the country. Our results suggest that before the OuAA campaign stay-at-home orders brought down time spent in retail and recreation businesses by about 27% for typical conservative and liberal counties. However, after the launch of OuAA campaign, the time spent at retail and recreational businesses in a typical conservative county increased significantly more than in liberal counties (15% increase in a typical conservative county Vs. 9% increase in a typical liberal county). We also found that in conservative counties with stay-at-home orders in place, time spent at retail and recreational businesses increased less than that of conservative counties without stay-at-home orders. These findings illuminate to what extent residents' political ideology could determine to what extent they follow local orders and to what extent the White House's OuAA campaign polarized the obedience between liberal and conservative counties. The silver lining in our study is that even when the federal government was reopening the country, the local authorities that enforced stay-at-home restrictions were to some extent effective.