Presencia/Ausencia de especies/morfo-especies de arañas en agroecosistemas del Chaco Seco Meridional Se trata de una base de datos de presencias (1) y ausencias (0) creada con colectas realizadas entre mediados de febrero y mediados de marzo de 2011, 2012 y 2013 en agroecosistemas del Chaco Seco, en el Noroeste de la provincia de Córdoba

Shorelines and beach width time series for three beaches of Mar del Plata (1986-2021) acquired from satellite imagery This repository contains the data used to evaluate the performance of a beach nourishment project in three bays of Mar del Plata, Province of Buenos Aires, Argentina. The project was carried out by the Belgian company Dredging International between 1998 and 1999. A total of 2,480,000 m3 of sediments were dredged from the mouth of the local port and deposited on the Playa Grande, Varese and Bristol beaches. CoastSat 2.0 toolkit (https://github.com/kvos/CoastSat), an open-source Python software for shoreline detection was utilized. The toolkit allows users to acquire time series of shoreline positions for any coastal area using available satellite imagery from the Google Earth Engine platform. In this case, it was used with data from the Landsat missions L5 (1986–2012), L7 (1999–2021), L8 (2013–2021), and the Sentinel mission S2 (2015–2021). Top-of-Atmosphere reflectance images from the Landsat missions with a resolution of 30 m and a revisit time of 16 days (Tier 1) were utilized, along with images from the Sentinel 2 mission with a resolution of 10 m and a revisit time of 5 days (Level-1C). Additionally, the toolkit employed spatial resolution enhancement techniques over Landsat images to map the position of the shoreline with an accuracy of ~10 m. In this repository, CoastSat-detected shorelines can be accessed along with the normal to shore transects from which the beach width time series were obtained to analyze beach response to nourishment. Tide-corrected beach width time series are also provided.

Thermophysical Behavior of Carbonated Aqueous Solutions Containing Monoethanolamine and Degradation Products Hernández Narciso, Clàudia Rosa; Martínez, Cristina G.; O'Connell, Brendan; Rodriguez Reartes, Sabrina Belen; Llovell, Fèlix; Trusler, J. P. Martin; Sedransk Campbell, Kyra L. The impact of the degradation of monoethanolamine (MEA) on the physicochemical properties of the solvent is experimentally characterized. Based on the identification of three main degradation products of MEA: oxazolidine-2-one (OZD), N-(2-hydroxyethyl)ethylenediamine (HEEDA), and 1-(2-hydroxyethyl)-2-imidazolidinone (HEIA), new measurements for the density, surface tension, and viscosity of partially carbonated solutions containing water, MEA and those products were conducted at different MEA/degradation product molar ratios. The experiments covered a temperature range from 298.15 to 353.15 K at atmospheric pressure. The more stable and impactful degradation product, HEIA, was analyzed separately to determine its vapor pressure, as well as the density and viscosity of aqueous solutions with HEIA mass fractions of 100, 75, 50, and 25% in the same temperature range. The reported data demonstrate the difference in the performance of aqueous MEA solutions containing degradation products as compared to a fresh solution. This aspect is crucial for understanding the impact and effectiveness of postcombustion CO2 capture using aqueous amine systems in an industrial setting.

Electric Field Gradient in Chiral and Tetrahedral Molecules within High-Order LRESC Formalism Aucar, Juan Jose; Melo, Juan Ignacio; Maldonado, Alejandro Fabián In this work, we present the electric field gradient (EFG) given by the linear response elimination of the small component (LRESC) scheme up tothe 1/c order (c is the speed of light in vacuum) in CHFClX (X = Br, I, At) chiral molecules, together with CHF2Br and CH2FX (X = Br, I, At) tetrahedral systems. The former could be good candidates for further parity violation studies, especially when heavy atoms are surrounding. In this context, the LRESC scheme demonstrates effective applicability to large tetrahedral and chiral molecules that incorporate heavy elements, with relativistic effects playing a crucial role. The LRESC results of EFG exhibit an excellent agreement with those calculated at the four-component level, giving differences of only hundredths order in a.u. (atomic units) for the bromine nucleus and less than 0.1 a.u. for the iodine nucleus.Regarding the other nuclei, for the chiral molecules, there is a heavy atom effect on the light atom (HALA) for chlorine and fluorine atoms as the substituent halogen atom becomes heavier. Furthermore, the electronic part of the EFG for the central carbon and fluorine nuclei presents an important dependence with the environment in the molecules under study. With accurate calculations of the EFG and tabulated nuclear quadrupole moment, the nuclear quadrupole coupling constant is obtained within the LRESC scheme, including for the first time correlation effects on the spin-dependent corrections with this methodology, providing results close to the experimental ones for Cl, Br, and I atoms. At the Hartree−Fock level, the differences are around 6% for Br and I nuclei, and at the density functional theory level with the LDA and PBE0 functionals, the differences are no more than 2%.

A mini review of mycotoxin’s occurrence in food in South America in the last 5 years: Research gaps and challenges in a climate change era Foerster, Claudia; Müller Sepúlveda, Andrea; Copetti, Marina Venturini; Arrua, Andrea Alejandra; Monsalve, Liliam; Ramirez, Maria Laura; Torres, Adriana Mabel Mycotoxins are natural metabolites produced by species of filamentous fungi belonging mainly to the genera Aspergillus, Fusarium, Penicillium, and Alternaria, which can grow in various crops and foodstuffs. The South American climate is diverse, varying from tropical, temperate, and arid to cold, ideal for the growth of different types of fungi and mycotoxin production. This mini review aimed to describe the natural occurrence of mycotoxin in food in South America from 2018 to 2023, identifying research gaps and challenges in an era of climate change. We analyzed 53 studies, 21 from Brazil. Most of the mycotoxins analyzed in South America were the traditional and regulated mycotoxins, with variable occurrences depending on the region, climatic conditions, and methodology used. Emerging and modified mycotoxins have only been studied in Argentina and Brazil, where some studies have shown high occurrences. Given this, it is essential to strengthen food safety laboratories and surveillance capabilities and establish early warning systems. It is also essential to continue working to raise awareness of mycotoxins as a public health issue and to study and prevent the impact of climate change on soil microbial population, the new prevalence of fungi, and the profile of toxigenic species. An effective connection and collaboration between disciplines and sectors in different countries is needed to meet this research challenge.

Influencia del reloj biológico sobre la expresión de genes relacionados con la resistencia a insecticida en Triatoma Infestans En Triatoma infestans se observó resistencia a los piretroides atribuida en parte a una metabolismo oxidativo elevado mediado por los citocromos P450. La nicotinamida Adenina dinucleótido fosfato (NADPH) citocromo P450 reductasa (CPR) desempeña un papel crucial en catalizar la transferencia de electrones del NADPH a todos los citocromos P450. Las variaciones diarias en la expresión del gen CPR y de un gen P450 (CYP4EM7), ambos asociado con la resistencia a los insecticidas, sugirió que sus expresiones estarían bajo el control del reloj endógeno. Para aclarar la participación del reloj en la orquestación de las fluctuaciones diarias en la expresión de los genes CPR y CYP4M7, se propuso investigar el efecto de silenciar el gen del reloj period (per) por ARN interferencia (ARNi). Los resultados obtenidos permitieron establecer que el silenciamiento del per es influenciado por los esquemas de ingesta utilizados en los protocolos de interferencia. El el silenciamiento de per gen en T. infestans redujo su expresión en todos los puntos de tiempo analizados y abolió el ritmo característico en la expresión transcripcional del ARNm del gen per. El efecto del silenciamiento del gen per en los perfiles de expresión a nivel transcripcional de los genes CPR y CYP4EM7 mostró la pérdida de ritmicidad y demostró la participación del reloj biológico en la regulación de su expresión.

Parasite assemblages as indicators of stability in stock structure of Cynoscion guatucupa (Sciaenidae) after a quarter of century of exploitation in a marine warming hotspot Lanfranchi, Ana Laura; Canel, Delfina; Alarcos, Ana Julia; Levy, Eugenia; Braicovich, Paola Elizabeth; Marcotegui, Paula Soledad; Timi, Juan Tomas Climate change is impacting marine species, leading to shifts in their distribution to higher latitudes and to deeper locations. Parasite communities are dynamic systems influenced by biotic and abiotic factors, making them valuable tools for studying ecological processes of their hosts. This work aims to assess possible changes in parasite structure that occurred in the northern stock of Cynoscion guatucupa in the Argentine Sea, over approximately 25 years, by using parasites as tags in a region characterized as a hotspot of significant warming in recent decades. Parasite assemblages of adult and juvenile fish from two periods caught at two regions of the Argentine Sea were analyzed. Species richness remained relatively constant across samples, although four of the eight compared species from juvenile fish showed significant increases in prevalence, while for adults three species decreased. Differences in parasite assemblages were significant between periods, but not between regions, indicating that the stock structure has apparently remained stable in recent years, even under a warming process that, in turn, seems to have affected its parasite assemblages which however, continue showing homogeneous parasitological attributes throughout the habitats. Most results indicate that changes in parasite burdens are not related to the population density or geographic distribution of C. guatucupa, but to changes in temperature, salinity or in the density of top predators. Parasites seem to have felt the impact of global change before their host, thus, they can be considered early sentinels to monitor the stability and distribution of this important resource.

Growing in Scarcity: Pre-Hispanic Rain-Fed Agriculture in the Semi-Arid and Frost-Prone Andean Altiplano (Bolivia) Cruz, Pablo; Joffre, Richard; Saintenoy, Thibault; Vacher, Jean Joinville Ancient Andean agricultural landscapes have been the subject of a large number of archaeological and agro-ecological studies, which generally refer to regions with favourable environmental conditions or, in the case of arid and semi-arid environments, those with irrigation facilities. The aim of this article is to present and analyse the pre-Hispanic rain-fed farming systems widely represented in two adjacent regions of Bolivia’s arid and cold southern Altiplano. The search for archaeological agricultural areas combined aerial analysis and field surveys. Agro-ecological characterisation was based on historical and ethnographic studies of the region’s present-day populations. Despite their geographical proximity, similar environmental conditions, and same agropastoral way of life, the typology of cultivated areas developed in the southern altiplano differs significantly. Within this same framework of adaptation and resilience, the sectorisation of agricultural systems observed in these two regions reveals a regional productive specialisation that favoured internal exchanges and exchanges with other regions. These differences are related to two models of non-centralised, low-inequality societies—one strongly based on cohesion and the other characterised by greater fragmentation and social conflict—underlining the limits of strict environmental determinism in shaping agricultural landscapes. These results provide new food for thought in the debate on the use and value of rain-fed agricultural practices and more broadly on the diversity of adaptations by human societies in extreme and unstable environmental contexts.

Una fuente inédita para el estudio del ayllu y el parentesco en los Andes surperuanos. Los libros parroquiales de la iglesia San Francisco de Asís de Marcapata (Quispicanchi, Cuzco, Perú); An unpublished source for the study of the ayllu and kinship in the southern Peruvian Andes: The parish records of the San Francisco de Asís church, Marcapata (Quispicanchi, Cuzco, Peru) Sendón, Pablo Federico El artículo presenta y discute los libros de matrimonio y bautismo conservados en la parroquia San Francisco de Asís del distrito de Marcapata (Quispicanchi, Cuzco) con el propósito de explorar sus posibilidades para el estudio del ayllu y el parentesco entre la población local a lo largo de los siglos XIX y XX. Se parte de un análisis de la información censal oficial disponible acerca del distrito y de sus unidades constitutivas a modo de introducir la información contenida en los libros parroquiales. Sometidos a una lectura genealógica, los libros demuestran ser una fuente de gran utilidad para la identificación de redes de parentesco con posibilidades exploratorias excepcionales para los estudios interesados en la morfología social de las poblaciones campesino-indígenas de esta región de los Andes surperuanos. A partir de un análisis preliminar de estas redes —en el que se presta especial atención a los lugares de nacimiento y residencia de los individuos registrados en ellas, la distribución de los principales patronímicos y las tasas de endogamia y exogamia hasta el nivel del distrito— es posible acceder a un panorama de la conformación distrital alternativa a la que registran las fuentes oficiales.; The article presents and examines the marriage and baptismal records preserved in the parish of San Francisco de Asís, in the district of Marcapata (Quispicanchi, Cuzco), with the aim of exploring their potential for studying ayllu and kinship relations among the local population in the nineteenth and twentieth centuries. The analysis begins with an examination of the official census data available for the district and its constituent units as an introduction to the information contained in the parish records. When subjected to a genealogical reading, the records prove to be a highly valuable source for identifying kinship networks with exceptional potential exploration for studies focused on the social morphology of peasant indigenous populations in this region of the southern Peruvian Andes. A preliminary analysis of these networks –paying particular attention to the places of birth and residence of individuals, the distribution of principal surnames, and rates of endogamy and exogamy down to the district level– provides an alternative view of district organization that differs from official sources.

Hace 25 años: Una verificación experimental de la Relatividad General a escala terrestre Ferraro, Rafael La teoría de la relatividad general de Einstein continúa superando las pruebas experimentales a las que se la somete. A ochenta años de su formación, una nueva serie de experimentos terrestres confirma algunas de las predicciones de la teoría.

Consumption of a Byproduct of Chia Seed Oil Extraction by Cold Pressing Ameliorates Cardiovascular Risks Factors in an Experimental Model of Metabolically Unhealthy Normal Weight Alarcón, Gabriela del Jesús; Valoy, Agostina; Martin Alzogaray, María Florencia; Medina, Analía; Van Nieuwenhove, Carina Paola; Medina, Mirta; Jerez, Susana Josefina The byproduct of Salvia hispanica (chia) seed oil extraction by cold pressing, also known as expeller, possesses a high nutritional value. It is rich in proteins, fibers, minerals, and has a residual oil content of 7-11%, which is rich in omega 3 linolenic acid (ALA). However, this byproduct has been historically undervalued. Thus, the aim of current work was to study the effects of consuming of a rich in chia expeller diet on a rabbit model of metabolically unhealthy normal weight to validate their use as a functional food. Rabbits were fed different diets for a period of 6 weeks: a standard diet (CD), a high-fat diet (HFD), a rich in expeller CD (Exp-CD) and a rich in expeller HFD (Exp-HFD). The Exp-HFD attenuated the rise in basal glucose, TyG index, triglycerides, cholesterol and non-HDL cholesterol induced by the HFD. Both rich in expeller diets reduced mean arterial blood pressure (MAP) and increase liver and fat ALA levels compared to their respective controls. Furthermore, the angiotensin converting enzyme (ACE) activity was lower in the lungs of animals fed on rich in expeller diets compared to their respective controls. In vitro studies showed that ALA inhibited ACE activity. The evaluation of vascular reactivity revealed that rich in expeller diets improved angiotensin II affinity and reduced contractile response to noradrenaline. In conclusion, the consumption of rich in expeller diets showed beneficial effects in preventing cardiovascular risk factors such as insulin resistance, dyslipidemia and MAP. Therefore, its use as functional ingredient holds significant promise.

Macrocystis pyrifera Alga Extracts Combined with Azospirillum argentinense Improve Growth and Hormonal Responses in Zea mays Plants under Drought Stress Iparraguirre, Julia; Masciarelli, Oscar Alberto; Villasuso, Ana Laura; Piatti, Daniela del Rosario; Llanes, Analia Susana With increasing economic and nutritional demands that far outpace the addition of new agricultural areas around the world, biofertilizers are increasingly used to ensure the productivity of existing areas without sacrificing sustainability. This study evaluated the combination of algal extracts of Macrocystis pyrifera (a natural biofertilizer) with the plant growth-promoting bacteria Azospirillum argentinense in terms of their effectiveness in stimulating germination and growth of maize plants under different irrigation conditions. The performance of maize plants inoculated with the algae-bacteria formulation under water stress conditions was evaluated. The variables studied included different germination and growth parameters, such as dry and fresh weight of aerial and root part, total height and aerial and root part. The hormonal profile in maize seedlings was determined. The results related to growth parameters and phytohormone content demonstrate a synergistic effect between algae and bacteria, which means that a bioinoculant could be formulated based on their combination to promote the growth of maize in different climatic conditions and/or or water regimes. Such a product would fit well into current or future environmentally friendly plans for growing maize, aiming to reduce dependence on chemical fertilizers while preserving yield.

Variable Phenotypes in the Same Patient with PRRT2-Associated Disorders Loos, Mariana; Touzon, María Sol; Reyes, Gabriela; Juanes, Matías Hernan; Caraballo, Roberto Horacio Mutations in the PRRT2 gene lead to a spectrum of diseases with a commonpathophysiology including self-limited (familial) infantile epilepsy and paroxysmalkinesigenic dyskinesia as well as other paroxysmal diseases involving movement andheadache disorders. Atypical phenotypes, associated with episodic ataxia, epilepsy,hemiplegic migraine, developmental delay, and intellectual disability, have beenreported in approximately 5% of the patients, which is probably an underestimation.Here, we present three patients with variable PRRT2 phenotypes in each patient. In thefirst two patients, the manifestations were characterized by episodes of nonepilepticparoxysms and focal seizures starting in the first years of life with good response tocarbamazepine. One of them had no family history either of epilepsy or nonepilepticmotor manifestations. The other patient simultaneously developed epileptic spasms.Neurodevelopment was normal in both. The third patient presented with early-onsetfocal epilepsy that was resistant to antiseizure medications and evolved to spike-waveactivation in sleep associated with cognitive impairment and ataxia. In this patient, inaddition to the mutation in the PRRT2 gene, a novel pathogenic SCN1A variant wasidentified. The distinct clinical presentations in the same patient observed in our casesconfirm the broad spectrum of PRRT2-associated diseases.

δ18O variability in guanaco bone bioapatite in Southern Patagonia: Implications for paleoecological and paleoenvironmental studies Merler Carbajo, Julia; Dellepiane, Juan Matias; Morales, Marcelo Raul; Goñi, Rafael Agustín; Tessone, Augusto The guanaco (Lama guanicoe) is the largest and the most widely distributed ungulate in South America since the Pleistocene and constituted the main prey for hunter-gatherers in Southern Patagonia (Argentina) in the past. An isomorphic relationship has been suggested between the mobility of these animals and that of human groups that inhabited the region, which presents altitudinal differences. On the one hand, we seek to understand the spatial dynamics of guanaco populations and their interaction with hunter-gatherer societies. On the other hand, to evaluate the utility of archaeological herbivores' values as paleoenvironmental proxies that allow addressing the environmental variations during the Holocene in the region. We present the results of the analysis of δ18O in bioapatite of Lama guanicoe bone specimens from the area located in the central-western area of the province of Santa Cruz, between 70 and 72 degrees west longitude. We analyzed 41 samples. 22 of them correspond to modern individuals, while the remaining 19 were recovered from Holocene archaeological sites. The carbonate-phosphate and estimated water equations will be used to compare with pre-existing data of δ18O in the waters of the region. Results showed that the mean value of δ18O of the pooled samples was −6.5 ‰ ± 1 ‰. Even though some differences were detected, both, between archaeological vs. modern and between highlands vs. lowlands samples, no statistically significant differences were obtained in either case. In general terms, the data respond to what was expected regarding the complex nature of the water intake behaviors of these animals. The data presented in this paper constitutes a first approximation to the expected values of δ18O for guanacos in the region, its relationship with the hydrological cycle and human populations.

Revisiting the Cretaceous Lungfish atlantoceratodus Iheringi (Ameghino 1898) from the Mata Amarilla formation (Argentina) with comments on tooth plates histology Panzeri, Karen Magalí Atlantoceratodus iheringi (Ameghino, 1898) from Argentine territory is restudied based on its known tooth plates and newly discovered material, which includes previously unknown skull roof bones and vomerine tooth plates. The latter represent the first records of such elements from the Mesozoic era in South America. The comparative morphological analysis reveals its distinctiveness from other dipnoans, and offers valuable data for future systematic and phylogenetic research. The pterygopalatine tooth plates display narrow-based first denticulations and lack anterior wear facets, with the inner angle positioned at the level of the second denticulation. Similarly, the prearticular tooth plates feature straight mediolingual edges, and a wide-based first denticulation without sinuosities at the tip. Histological sections are performed and analyzed in detail for the first time. A. iheringi presents in this aspect distinctive features such as: large-lumen denteons tending to cluster together, circumdenteonal dentine arranged in a double band (an inner birefringent and an outer monorefringent), and a disordered interdenteonal dentine, with birefringence surrounding denteons and areas with monorefringence. A. iheringi exhibits histological structure closer to Mesozoic and Cenozoic dipnoans than Paleozoic, especially resembling the disposition observed in the Upper Cretaceous Patagonian species Metaceratodus baibianorum. The wide distribution of features designated as diagnostic for Atlantoceratodus is discussed.

Hábitos tróficos del dientudo Acestrorhynchus pantaneiro (Menezes 1992) en el valle aluvial del Río Paraná, Corrientes (Argentina); Trophic habits of Acestrorhynchus pantaneiro (Menezes 1992) in the alluvial valley of the Paraná River, Corrientes (Argentina) Bertran, Paula; Moreno, Enzo Gonzalo; Hernández, D.; González, A. O.; Sánchez, S.; Ruiz Díaz, F. J. El estudio de la dieta de los peces permite entender cómo éstos influyen en los demás organismos del ecosistema a través de las interacciones tróficas. El objetivo del estudio fue ampliar el conocimiento que se tiene del hábito trófico de Acestrorhynchus pantaneiro en el valle aluvial del río Paraná. Se evaluaron contenidos estomacales de 140 individuos de A. pantaneiro recolectados con pesca eléctrica en cuatro zonas del río Paraná, aguas abajo de la represa de Yacyretá, entre mayo de 2016 y febrero de 2018. Se evaluó la presencia/ausencia de contenido estomacal y para cada ítem se analizó a nivel taxonómico procediendo al cálculo de los siguientes indicadores: índice de frecuencia de ocurrencia, método volumétrico e índice alimentario. El 58% de las muestras presentaron algún tipo de ítem alimentario en el contenido estomacal, mientras que el 42% se encontraron vacíos. Los ítems más frecuentes hallados en los estómagos fueron especies de los órdenes Perciformes, Characiformes y Siluriformes, estimándose los mayores valores porcentuales para el género Crenicichla. Los resultados de este estudio sugieren que A. pantaneiro, además de tener hábitos tróficos piscívoros, demostró preferencias por el consumo de especies del género Crenicichla.; The study of fish diets allows us to understand how they influence other organisms in the ecosystem through trophic interactions. The aim of this study was to expand our knowledge of the trophic habits of Acestrorhynchus pantaneiro in the alluvial valley of the Paraná River, Corrientes (Argentina). This study involved the collection and evaluation of 140 individuals of A. pantaneiro between May 2016 and February 2018 in four areas of the Paraná River, downstream of the Yacyretá dam. The stomach contents were analyzed at the taxonomic level to calculate the following indicators: frequency of occurrence index, volumetric method, and dietary index. Of the 140 specimens evaluated, 58% had some type of food item in their stomach, whereas 42% were found empty. The analysis of stomach contents allowed us to differentiate several species consumed belonging to the orders Perciformes, Characiformes and Siluriformes; however, the genus Crenicichla presented the highest percentage values of the indicators. The results of this study suggest that A. pantaneiro, in addition to having piscivorous trophic habits, demonstrated preferences for consuming species of the genus Crenicichla.

Water temperature and microenvironmental factors predict the presence and detection of the snail host of Fasciola hepatica in Andean Patagonia Rodriguez Quinteros, Ana Clara; Soler, Paula; Larroza, Marcela Patricia; Morales, Juan Manuel; Gurevitz, Juan Manuel The transmission of Fasciola hepatica occurs only where there are -or recently were- aquatic or amphibious snails of the Lymnaeidae family, the intermediate host of this parasite. Direct detection of these snails is time-consuming and imprecise, hindering accurate and detailed mapping of transmission risk. To identify which microenvironmental factors could be used as proxies for the occurrence of the lymnaeid snail Galba viator, a major intermediate host in South America, a total of 183 1-m2 quadrants across diverse water bodies in an endemic area in Andean Patagonia were manually timed-searched for snails and microenvironmental variables were registered. Data was analyzed using a Bayesian hierarchical occupancy model that assessed the effects of the microenvironmental variables on the presence of snails while considering imperfect snail detection. The model estimated that G. viator predominantly inhabits shallow aquatic environments, in the presence of grasses, where snails of the genus Biomphalaria are also detected, and with scarce tree canopy cover. Physical factors affecting occupancy presumably act as proxies for the average water temperature, while the temperature at the time of sampling was found to affect snail detectability. The identified variables are easy, fast, and inexpensive to measure, and can complement management decisions and risk maps based on coarser remote-sensing data, particularly relevant in a context of growing resistance to anthelminthic drugs.

Ecosystem service research in the dry subtropics: Current state, temporal changes and drivers of regional variability Aragón, Myriam Roxana; Baldi, Germán Dry subtropical (DST) regions that share similar climatic and topographic conditions exhibittoday significant disparities in population density, agricultural intensity, wealth and culturalvalues. In addition, they are also facing increasing pressures on their natural resources.These attributes collectively shape individuals´ varying dependence on natural resourcesand may influence their perception of ecosystem services (ES). In this study, we conducteda systematic literature review, focusing on the DST regions, to address two mainquestions: 1) What is the current state, temporal trends and regional variability in scientificresearch on ES and 2) What are the potential drivers of the variability in ES research?Amongst the 471 publications found in our review, 53% focused on provisioning services,followed nearly equally by cultural (33%) and regulating (30%) services. Only 13%addressed more than one ES category and approximately 33% mentioned economicvaluation. Our study reveals that research on ES in the dry subtropics experienced asignificant increase from 2005 onwards. Approximately 45% of the publications includedthe term ´ecosystem service´ and its frequency has risen substantially over time. Mostpublications primarily focus on African dry subtropics (over 60%), followed by South andNorth American ones. Publications from southern Asia and NE Australia were more scarce.Importantly, we found no clear relationship between the number of publications, publicationdensity or representativeness and the variables used as indicators of human pressure (e.g.population density). Consequently, research efforts in the DST regions appear to beinfluenced by a diverse range of financial and institutional constraints, internationalresearch agendas, as well as the personal interests of researchers, contributing to theidiosyncratic nature of this field.

La suburbanización de las élites en el Área Metropolitana de Buenos Aires (1975 - 2010). Nuevas evidencias a partir de estadísticas migratorias; The sub-urbanization of the elites in the gran Buenos Aires metropolitan area (1975-2010). New evidence from migration statistics; A suburbanização das elites na area metropolitana do gran Buenos Aires (1975- 2010). Novas evidências a partir das estatísticas de migração Rodriguez, Gonzalo Martin; Molinatti, Florencia El trabajo propone revisitar la tesis de Horacio Torres sobre la suburbanización de las élites en el Área Metropolitana de Buenos Aires (AMBA) durante la última década del siglo XX, un proceso que se asume como estrechamente vinculado con la proliferación de urbanizaciones cerradas en la periferia, y al que el autor consideró “tardío” en relación con lo ocurrido en otras grandes ciudades del continente. A partir del procesamiento de bases de microdatos de censos históricos argentinos, encontramos que la suburbanización de las élites en el AMBA en los noventa, si bien existió, no fue tan tardía o novedosa como se ha creído hasta el momento. Los datos de migraciones internas recientes sugieren que hubo una primera suburbanización temprana durante la última dictadura cívico-militar a fines de la década del setenta. Esta primera migración del centro a la periferia tuvo características distintivas respecto de la suburbanización posterior de los noventa.; The paper proposes to revisit Horacio Torres’ thesis on the suburbanization of the elites in the Buenos Aires Metropolitan Area (AMBA) during the last decade of the 20th century, a process that is assumed to be closely linked to the proliferation of gated communities in the periphery and which author considered “late” in relation to what happened in other large cities of the continent. From the processing of microdata bases of Argentine historical censuses, we found that the suburbanization of the elites in the AMBA in the nineties, although it existed, was not as late or novel as has been believed up to now. Recent internal migration data suggest that there was a first early suburbanization during the last civil-military dictatorship at the end of the 1970s. This first migration from the center to the periphery had distinctive characteristics compared to the later suburbanization of the nineties.; O artigo propõe revisitar a tese de Horacio Torres sobre a suburbanização das elites na Área Metropolitana de Buenos Aires (AMBA) durante a última década do século XX, processo que se supõe estar intimamente ligado à proliferação de condomínios fechados na periferia, e que o referido autor considerou “atrasado” em relação ao ocorrido em outras grandes cidades do continente. A partir do processamento de microdados de censos históricos argentinos, constatamos que a suburbanização das elites na AMBA nos anos noventa, embora existisse, não foi tão tardia ou nova como se acreditou até agora. Dados recentes de migração interna sugerem que houve uma primeira suburbanização precoce durante a última ditadura civil-militar no final da década de 1970. Essa primeira migração do centro para a periferia teve características distintas em relação à suburbanização posterior dos anos noventa.

Revisión crítica de la comunicación médico-paciente: Agenda de investigación intercultural; Critical Review of Doctor-Patient Communication: Intercultural Research Agenda Lazzaro Salazar, Mariana Virginia; Pujol Cols, Lucas Joan; Mendoza Mendoza, Ilsa; González Tapia, Grimanessa Las revisiones de la comunicación doctor-paciente intercultural realizadas a la fecha han apuntado a recomendaciones para la práctica profesional, atendiendo de forma tangencial las necesidades investigativas del campo. El objetivo de este estudio es realizar una revisión crítica de estudios que examinan la comunicación intercultural en la relación médico-paciente para sintetizar sus hallazgos, evaluar sus limitaciones y proponer líneas futuras de investigación que propicien la evolución del campo. Se realizaron búsquedas avanzadas en Web of Science, Scopus, PubMed y Scielo. La aplicación de la metodología PRISMA permitió la identificación de 27 artículos. En la mayoría de los artículos revisados la interculturalidad se encuentra insuficientemente teorizada y la comunicación se examina muy superficialmente. Son escasos los estudios que investigan aspectos discursivos y/o lingüísticos de la comunicación intercultural médico-paciente. Resulta vital que futuras investigaciones incorporen una perspectiva micro-cultural al estudio de la relación médico-paciente y contemplen elementos lingüísticos de la comunicación intercultural.; Reviews of intercultural doctor-patient communication carried out to date have pointed to recommendations for professional practice, tangentially addressing the research needs of the field. The aim of this study is to conduct a critical review of studies that examine intercultural communication in the doctor-patient relationship in order to synthesize their findings, evaluate their limitations, and propose future lines of research that foster the evolution of the field. Advanced searches were performed in Web of Science, Scopus, PubMed and Scielo. The application of the PRISMA methodology allowed the identification of 29 articles. In most of the reviewed articles, interculturality is insufficiently theorized and communication is examined very superficially. There are few studies that investigate discursive and/or linguistic aspects of intercultural doctor-patient communication. It is vital that future research incorporate a micro-cultural perspective to the study of the doctor-patient relationship and contemplate linguistic elements of intercultural communication.