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Occupational complexity of paid work and housework, and its impact on the cognitive performance in community dwelling older adults, preliminary results; Complexidade ocupacional do trabalho remunerado e o trabalho doméstico e seu impacto no desempenho cognitivo de idosos residentes na comunidade, resultados preliminares
Feldberg, Carolina; Barreyro, Juan Pablo; Quián, Maria del Rosario; Hermida, Paula Daniela; Ofman, Silvia Deborah; Irrazabal, Natalia Carolina; Tartaglini, Maria Florencia; Serrano, Cecilia Mariela
Work and activity could be an important source of cognitive enrichment. Activities that are more challenging concerning the cognitive functions that are put into practice are associated with lower risk of cognitive decline in old age. Objective: The present study aimed to assess the impact of occupational complexity and household tasks in three cognitive domains (verbal episodic memory, language, and executive functions) in older adults residing within the community. Methods: A trail analysis was executed, using the structural equations procedure in 120 participants assessed with main lifetime occupational activity and household tasks questionnaire, as well as a neuropsychological assessment battery for memory, language, and executive functions. Results: The regression weights analysis indicated that complexity in household chores showed moderate effects on executive functions (β=0.19; p=0.027) and that occupational complexity of paid work showed effects on memory (β=0.26; p=0.008), language (β=0.38; p<0.001), and executive functions (β=0.55; p<0.001). Conclusion: Paid work promotes cognitive reserve, contrary to household activities which seem to have a moderate impact on cognition. Differences in activity complexity not only impact people´s economic and social status and possibilities but can also determine different courses of aging and cognitive risk.; . Trabalho e atividade podem ser importantes fontes de enriquecimento cognitivo. Atividades que são mais desafiadoras quanto às funções cognitivas postas em prática se associam a menor risco de declínio cognitivo em idade avançada. Objetivo: O objetivo do presente estudo é avaliar o impacto da complexidade ocupacional e das tarefas domésticas em três domínio cognitivos (memória episódica verbal, linguagem e funções executivas) em idosos residentes na comunidade. Métodos: Foi realizada uma análise de trilha com o uso de procedimento de equações estruturais em 120 participantes, avaliados por meio de: questionário das principais atividades ocupacionais e tarefas domésticas da vida, bem como bateria de avaliação neuropsicológica para memória, linguagem e funções executivas. Resultados: A análise dos pesos de regressou mostrou que a complexidade nas tarefas domésticas apresenta efeitos moderados nas funções executivas (β=0,19; p=0,027) e que a complexidade ocupacional do trabalho remunerado teve efeitos sobre a memória (β=0,26; p=0,008), linguagem (β=0,38; p<0,001) e funções executivas (β=0,55; p<0,001). Conclusão: O trabalho remunerado promove a reserva cognitiva, em contraste com as atividades domésticas, que parecem ter impacto moderado na cognição. As diferenças na complexidade das atividades não apenas impactam o status econômico e social e as possibilidades das pessoas, mas também podem determinar diferentes cursos de envelhecimento e risco cognitivo.
The spectroscopic orbit of HD 168112 A,B in NGC 6604: another massive binary target for interferometry
The spectroscopic orbit of HD 168112 A,B in NGC 6604: another massive binary target for interferometry
Putkuri, Cristina Ester; Gamen, Roberto Claudio; Morrell, Nidia Irene; Maíz Apellániz, Jesús; Arias, J. I.; Simón Díaz, S.; Ferrero, Gonzalo Ariel; Rodríguez, C. N.; Sota, A.; Benvenuto, Omar Gustavo; Barba, Rodolfo Héctor
We present the first spectroscopic orbit of the O-type double-lined star HD 168112 A,B. We analyse 101 high-resolution optical spectra identifying the absorption lines of both components. The orbital solution presents a relatively long period, P = 513.52 ± 0.01 d, and a high eccentricity, e = 0.743 ± 0.005. The binary system consists of two very similar stars of minimum masses of ~25 M⊙, effective temperatures of ~40 000 K, and surface gravities of ~3.7 dex. The system has a minimum semimajor axis a sin i ~ 1000 R⊙. We confirm that the A and B visual components identified via interferometry do correspond to the spectroscopic ones. We also analyse the underlying stellar groups using Gaia DR3 data and ground-based spectroscopy as part of the Villafranca project, determining that NGC 6604 is at a distance of 1942−36+38" role="presentation">1942+38−36 pc and giving spectral classifications for 23 massive stellar systems in Villafranca O-035 and the surrounding Ser OB2 association, for which we provide the most complete census of massive stars to date.
Fundamental parameters of two O9-type giant stars: the (former) spectral classification standard HD 93249 A and ALS 12502 A
Fundamental parameters of two O9-type giant stars: the (former) spectral classification standard HD 93249 A and ALS 12502 A
Ansín, Tomás; Gamen, Roberto Claudio; Morrell, Nidia Irene; Barba, Rodolfo Héctor; Maíz Apellániz, Jesús; Arias, J. I.; Simón Díaz, S.; Holgado, G.
The evolution of massive stars is not completely understood. Several phenomena affect their birth, life, and death, multiplicity being one of them. In this context, the OWN and MONOS projects are systematically observing O- and WN-type stars whose multiplicity status is unknown. Their major goal considers the necessity of determining absolute parameters of massive stars. We have collected spectra of HD 93249 A and ALS 12502 A aiming at characterizing their binary nature. For both stars, we analysed high-resolution spectra and combined them with Transiting Exoplanet Survey Satellite (TESS) observations to be compared with binary models constructed by means of the PHOEBE code. We discovered that the radial velocity of HD 93249 A varies with a period of 2.97968 ± 0.00001 d and that the system presents ellipsoidal light variations. We disentangled the composite spectra and classified its components as O9 III and B1.5 III, respectively. Confirmed as a spectroscopic binary, HD 93249 A can no longer be used as spectral classification standard. ALS 12502 A turned out to be a detached eclipsing binary in the TESS and Gaia data. These results enable us to determine absolute parameters for each component in the system.
Democracia y filosofía como forma de vida
Democracia y filosofía como forma de vida
Farrán, Roque
En este texto me referiré a los tres conceptos principales que definen a la democracia moderna: igualdad, libertad, fraternidad; y lo haré desde una perspectiva filosófica materialista que se asume como forma de vida. El giro práctico que promuevo hace tiempo se nutre de elaboraciones ontológicas, críticas y éticas para pensar nuestro presente. Procederé aquí al modo materialista, trazando demarcaciones conceptuales y adelantando tesis cuyas consecuencias no desarrollaré en extensión porque son cuestiones que vengo presentando en distintos textos y lugares. Así, muestro en acto un modo de pensar que se forja en el entrelazamiento de diversos tópicos y, al finalizar, propongo ejercicios concretos.
La escritura de sí en clave materialista como una revalorización de la práctica filosófica
La escritura de sí en clave materialista como una revalorización de la práctica filosófica; A escrita de si em chave materialista como uma revalorização da prática filosófica; The writing of the self from a materialist perspective us a revalorization of the philosophical practice
Farrán, Roque
En este texto pretendo cuestionar la idea habitual que nos hacemos de la escritura académica filosófica y proponer otra más clásica. Se suele usar la escritura como una instancia de comunicación de investigaciones o experiencias previas, pero ¿qué sucedería si consideráramos a la escritura como un ejercicio de pensamiento y formación en acto? La escritura de sí no es literatura del yo ni autobiografía, sino un modo material concreto de constitución de sí a través de la recolección de discursos y enseñanzas de otros (maestros, legados, tradiciones). Por eso deseo recuperar esta función práctica de la escritura de sí que retoman Foucault y Hadot de los antiguos para promoverla como un ethos o incluso método de pensamiento contemporáneo. Por último, propongo algunas meditaciones concretas para ejercitarse. La apuesta de este escrito es revalorizar la escritura académica no solo como comunicación de un estado del saber, sino como riguroso y libre ejercicio de constitución de sí.; Neste texto, pretendo questionar a ideia comum que temos da escrita acadêmica filosófica e propor uma mais clássica. Geralmente, a escrita é usada como uma instância de comunicação de pesquisas ou experiências anteriores, mas o que aconteceria se a considerássemos como um exercício de pensamento e formação em ação? A escrita de si não é literatura do eu nem autobiografia, mas sim um modo material concreto de autotransformação por meio da coleta de discursos e ensinamentos de outros (mestres, legados, tradições). Portanto, desejo resgatar essa função prática da escrita de si, que Foucault e Hadot retomam dos antigos para promovê-la como um ethos ou até mesmo um método de pensamento contemporâneo. Por fim, proponho algumas meditações concretas para a prática. A aposta deste escrito é revalorizar a escrita acadêmica não apenas como comunicação de um estado do conhecimento, mas como um rigoroso e livre exercício de autotransformação.; In this text, I aim to question the usual notion we have of philosophical academic writing and propose a more classical approach. Writing is often used as a means of communicating previous research or experiences, but what if we were to consider writing as an exercise of active thought and self-formation? Writing of the self is not a literature of the self or an autobiography, but rather a concrete material mode of self-constitution through the gathering of discourses and teachings from others (masters, legacies, traditions). Therefore, I wish to reclaim this practical function of writing of the self, as advocated by Foucault and Hadot in their study of the ancients, and promote it as an ethos or even a contemporary method of thinking. Finally, I propose some concrete meditations for practice. The aim of this text is to revalorize academic writing not only as a communication of the state of knowledge but as a rigorous and liberating exercise in self-construction.
Enhanced diversity of aquatic macroinvertebrate predators and biological pest control but reduced crop establishment in organic rice farming
Enhanced diversity of aquatic macroinvertebrate predators and biological pest control but reduced crop establishment in organic rice farming
Pérez Méndez, Nestor; Martínez Eixarch, M.; Llevat, R.; Mateu, D.; Marrero, Hugo Javier; Cid, N.; Catala Forner, M.
Organic farming has been adopted as the main alternative to reduce the environmental impact of intensive agriculture by banning the use of synthetic inputs and bolstering key ecological functions such as biological pest control. Yet the potential cascading effects of farming management on the communities of natural enemies, the provisioning of pest control, and the ultimate impact on crop performance remain poorly explored. This is especially true for semi-aquatic crops such as rice (Oryza sativa, L) that largely depend on aquatic macroinvertebrate predators for biological pest control. Here we performed two consecutive landscape-scale field experiments by combining monthly surveys of macroinvertebrate aquatic predators with both pest predation and seed rice germination trials to assess differences between conventional and organic rice farming in all the above-mentioned issues. Specifically, we selected 6 organic and 6 conventionally managed rice paddies and evaluated differences in i) the diversity of aquatic macroinvertebrate predators (taxa richness and evenness), ii) the infestation level of a seed pest (chironomids larvae), iii) the efficiency of biological pest control provisioning and iv) the impact on germination of rice seeds. Communities of macroinvertebrate aquatic predators were more diverse (taxa richness) and abundant in organic than in conventional fields, yet community evenness was higher in conventionally-managed fields. Accordingly, we found that macroinvertebrate-mediated pest control was markedly more efficient in organic farms during the establishment crop stage. Pest infestation, however, remained also higher in organic farming, most likely because biological pest control in organic fields is not able to outcompete chemical control provided in conventional fields. Finally, the increased infestation level observed in organic fields ultimately resulted in reduced germination rates of rice seeds, thus limiting crop performance. Our results highlight the potential positive effects of pesticide banning in organic rice farming on aquatic macroinvertebrate communities and the consequently improvement of biological pest control provisioning. Yet conditions enhancing biodiversity may also favor pest infestation and ultimately increase crop damage. Management recommendations should therefore account for potential services and disservices associated to organic farming in order to avoid negative yield outcomes for rice farmers.
Belgrano en el Alto Perú: Caracterización histórica e iconográfica de una insignia militar de la Guerra de Independencia del sitio Casas Grandes (Depto. Humahuaca, Jujuy)
Belgrano en el Alto Perú: Caracterización histórica e iconográfica de una insignia militar de la Guerra de Independencia del sitio Casas Grandes (Depto. Humahuaca, Jujuy); Belgrano in alto Peru: historical and iconographic characterization of a military badge of the independence war from the casas grandes site (Humahuaca department, Jujuy); Belgrano no alto Peru: caracterização histórica e iconográfica de uma insígnia militar da guerra da independência no sítio de casas grandes (depto. Humahuaca, Jujuy)
Acedo, Teresa R.; Leoni, Juan Bautista
En esta nota presentamos una insignia militar metálica hallada en el sitio Casas Grandes (Departamento Humahuaca, Jujuy). Tras un tratamiento de limpieza y conservación preventiva se logró identificar leyendas y motivos iconográficos en su anverso, que la vinculan con un regimiento de caballería creado por Manuel Belgrano en 1813 para su campaña hacia el Alto Perú.; In this note we present a metallic military badge found at the Casas Grandes site (Humahuaca Department, Jujuy, Argentina). After a careful cleaning and preemptive curation treatment, captions and iconographic motives on its front could be discerned, suggesting a link between this piece and a cavalry regiment created by Manuel Belgrano in 1813 for his expedition to the Alto Peru.
Belgrano en el Alto Perú: Caracterización histórica e iconográfica de una insignia militar de la Guerra de Independencia del sitio Casas Grandes (Depto. Humahuaca, Jujuy)
Belgrano en el Alto Perú: Caracterización histórica e iconográfica de una insignia militar de la Guerra de Independencia del sitio Casas Grandes (Depto. Humahuaca, Jujuy); Belgrano in alto Peru: historical and iconographic characterization of a military badge of the independence war from the casas grandes site (Humahuaca department, Jujuy); Belgrano no alto Peru: caracterização histórica e iconográfica de uma insígnia militar da guerra da independência no sítio de casas grandes (depto. Humahuaca, Jujuy)
Acedo, Teresa R.; Leoni, Juan Bautista
En esta nota presentamos una insignia militar metálica hallada en el sitio Casas Grandes (Departamento Humahuaca, Jujuy). Tras un tratamiento de limpieza y conservación preventiva se logró identificar leyendas y motivos iconográficos en su anverso, que la vinculan con un regimiento de caballería creado por Manuel Belgrano en 1813 para su campaña hacia el Alto Perú.; In this note we present a metallic military badge found at the Casas Grandes site (Humahuaca Department, Jujuy, Argentina). After a careful cleaning and preemptive curation treatment, captions and iconographic motives on its front could be discerned, suggesting a link between this piece and a cavalry regiment created by Manuel Belgrano in 1813 for his expedition to the Alto Peru.
Mn-porphyrins in a four-helix bundle participate in photo-induced electron transfer with a bacterial reaction center
Mn-porphyrins in a four-helix bundle participate in photo-induced electron transfer with a bacterial reaction center
Williams, Joann; Faillace, Martín Sebastián; Gonzalez, Emilio J; Dominguez, Rodrigo Ezequiel; Knappenberger, Kenneth; Heredia, Daniel Alejandro; Moore, Thomas; Moore, Ana L; Allen, James
Hybrid complexes incorporating synthetic Mn-porphyrins into an artificial four-helix bundle domain of bacterial reaction centers created a system to investigate new electron transfer pathways. The reactions were initiated by illumination of the bacterial reaction centers, whose primary photochemistry involves electron transfer from the bacteriochlorophyll dimer through a series of electron acceptors to the quinone electron acceptors. Porphyrins with diphenyl, dimesityl, or fluorinated substituents were synthesized containing either Mn or Zn. Electrochemical measurements revealed potentials for Mn(III)/Mn(II) transitions that are ~ 0.4 V higher for the fluorinated Mn-porphyrins than the diphenyl and dimesityl Mn-porphyrins. The synthetic porphyrins were introduced into the proteins by binding to a four-helix bundle domain that was genetically fused to the reaction center. Light excitation of the bacteriochlorophyll dimer of the reaction center resulted in new derivative signals, in the 400 to 450 nm region of light-minus-dark spectra, that are consistent with oxidation of the fluorinated Mn(II) porphyrins and reduction of the diphenyl and dimesityl Mn(III) porphyrins. These features recovered in the dark and were not observed in the Zn(II) porphyrins. The amplitudes of the signals were dependent upon the oxidation/reduction midpoint potentials of the bacteriochlorophyll dimer. These results are interpreted as photo-induced charge-separation processes resulting in redox changes of the Mn-porphyrins, demonstrating the utility of the hybrid artificial reaction center system to establish design guidelines for novel electron transfer reactions.
In vitro susceptibility test of Cladosporium cladosporioides isolates from Argentinian tomato crops against commercial fungicides
In vitro susceptibility test of Cladosporium cladosporioides isolates from Argentinian tomato crops against commercial fungicides
Machuca, Laura Marcela; Acuña Ojeda, Maria Florencia; Alfaro, Esteban; Spagnolo, Lorena Cecilia; Obregon, Veronica Gabriela; Ibañez, Julia Magali; Murguia, Marcelo Cesar
Tomato cultivation is an important agricultural activity in northeast of Argentina, and disease control is indispensable for its production. The purpose of the current study was to identify two fungi isolated from tomato plants cultivated in greenhouses, with symptoms of leaf mould disease and a strain of the genus Cladosporium from a culture collection, and evaluate their in vitro susceptibility to four commercial fungicides. Macro and microscopic examination, molecular characterisation and sequence analysis were applied for identification. Broth dilution and spread plate methods were used to determine the minimal inhibitory concentration (MIC) and minimal fungicide concentration (MFC). The active ingredients of the products were azoxystrobin+difenoconazole, trifloxystrobin+tebuconazole, chlorothalonil and metalaxyl-M+mancozeb. The results were processed using the Kruskal-Wallis method. The isolates were identified as Cladosporium cladosporioidesa-c; consequently, lesions found on tomato plants did not correspond to Cladosporium fulvum. There was a significant statistical difference between the obtained values. Qualitatively, the three strains had a similar behaviour for chlorothalonil (MIC values: 0.25 - 0.5 μg/ml, MFC values: 4 μg/ml). In all cases, tests with metalaxyl-M+mancozeb yielded higher values than those achieved for chlorothalonil (MIC values: 8 μg/ml, MFC values: 8- 32 μg/ml). trobilurin-formulated fungicides were less effective against C. cladosporioidesa-b (MIC values: 16-256 μg/ml, MFC values: >64 μg/ml). C. cladosporioidesc was the most sensitive isolate. The information about the presence of a non-frequent fungus and its fungicide susceptibility, would be useful for establishing control strategies and enhance production.
¿Crónica de una muerte anunciada? Una vuelta más al último malón al Fuerte San José
¿Crónica de una muerte anunciada? Una vuelta más al último malón al Fuerte San José; A chronicle of a death foretold? One more return to the last indigenous raid to fort San José
Buscaglia, Silvana
De los cuatro enclaves que integraron el proyecto colonizador español de la costa patagónica, solo el Fuerte San José y el Puesto de la Fuente -Península Valdés, provincia de Chubut- fueron destruidos y abandonados como consecuencia de un supuesto ataque indígena en 1810. Hasta el día de hoy, las causas de este evento permanecen imprecisas y, a lo largo del tiempo, se han sugerido distintas explicaciones. En base a los avances realizados en los últimos años, el objetivo del presente trabajo es discutir este último malón en términos de su complejidad a partir de la confrontación crítica de distintas fuentes escritas primarias, presentando evidencia inédita hasta el momento. Los resultados generados permiten formular la hipótesis en la que pobladores del fuerte tuvieron algún grado de participación en el ataque. La intervención directa de estos últimos podría tener implicancias en términos del correlato arqueológico y bioarqueológico de la confrontación.; Of the four enclaves that made up the Spanish colonization project on the Patagonian coast, only Fort San José and Puesto de la Fuente -Península Valdés, Chubut province- were destroyed and abandoned as a result of an alleged indigenous attack in 1810. To this day, the causes of this event still remain imprecise and, over time, different explanations have been suggested. Based on the advances made in recent years, the objective of this paper is to discuss this last indigenous attack in terms of its complexity based on the critical confrontation of different primary written sources, presenting hitherto unpublished evidence. The results suggest the hypothesis that settlers from the fort had some degree of participation in the attack. The direct intervention of the latter could have implications in terms of the archaeological and bioarchaeological correlate of the confrontation.
Fiestas religiosas y migraciones: virgen de Caacupé en González Catán
Fiestas religiosas y migraciones: virgen de Caacupé en González Catán; Religious festivity and migrations: Caacupé Virgin in González
Melella, Cecilia Eleonora; Matossian, Brenda
Este artículo analiza la festividad religiosa de la Virgen de Caacupé en el Club Atlético Deportivo Paraguayo de La Matanza (Región Metropolitana de Buenos Aires, Argentina) como una práctica social, cultural y espacial vinculada a dicha comunidad. La Matanza es un municipio con una alta concentración de población paraguaya; así, la relación entre las celebraciones y la apropiación de espacio urbano confluye por su interés y dinámica. Desde una mirada comunicacional y geográfica, el estudio de la festividad permite comprender percepciones, tensiones y silencios entre los principales actores de la comunidad migrante, del barrio y del municipio, así como las estrategias migratorias y modos de territorialización que se ponen en juego.; This article analyzes the religious festivity of the Caacupé Virgin in the Club Atlético Deportivo Paraguayo in La Matanza (Buenos Aires Metropolitan Region, Argentina) as a social, cultural, and spatial practice linked to this community. La Matanza is a municipality with a high concentration of Paraguayan population and the relationship between the celebrations and the appropriation of urban space converges due to its interest and dynamics. From a communicational and geographical perspective, the study of the festivity allows us to understand the perceptions, tensions, and silences between the main actors of the migrant community, the neighborhood, and the municipality, as well as the migratory strategies and territorialization modes that are put into play.
Spinoza en Carlos Astrada: Una lectura de dos escritos de 1933
Spinoza en Carlos Astrada: Una lectura de dos escritos de 1933; The Presence of Spinoza in Carlos Astrada’s Philosophy: Two Writings from 1933
Sabater, Natalia
Nos proponemos en este trabajo detenernos en dos escritos de Carlos Astrada, ambos del año 1933, dedicados a la filosofía de Baruch Spinoza, que despiertan la pregunta respecto de la peculiar lectura que el argentino realizó del pensador holandés y del posible vínculo que se podría proyectar entre sus filosofías. La hipótesis que defenderemos es que, reconociendo la imbricación profunda entre metafísica y ética que constituye al pensamiento de Spinoza, Astrada rescata la dimensión práctica, el proyecto ético como núcleo medular de esta filosofía y como aspecto central de la influencia del spinozismo en otros autores.; The following paper addresses two of Carlos Astrada’s writings: both dated from the year 1933, they are dedicated to the philosophy of Baruch Spinoza and become a starting point of further discussion, where questions arise regarding the peculiar reading that Astrada made of the Dutch thinker and the possible link that there could exist between their philosophies.We will defend the hypothesis that recognizing the deep imbrication between metaphysics and ethics that constitutes Spinoza’s thought, Astrada rescues the practical dimension, the ethical project as a fundamental element of this philosophy and as a central aspect of the influence of Spinozism on other authors.
The geometry of global protected lands
The geometry of global protected lands
Schauman, Santiago Augusto; Peñuelas, Josep; Jobbágy, Esteban G.; Baldi, Germán
Expanding protected areas (PAs) is a worldwide endeavour aimed at addressing the biodiversity crisis and harnessing the benefits that natural ecosystems provide to humanity. However, conservation agendas often overlook the spatial geometry of PAs—shape and size—and its implications for critical issues such as agricultural encroachment, poaching, biological invasion or the contact between wildlife, domestic animals and humans. Here we show how the global PA expansion has added predominantly small and complex-shaped PAs. Consequently, one-third of protected lands are located within 2 km of unprotected areas, while only 0.6% extend beyond 100 km. Developed countries tend to have smaller, dispersed, perforated and fragmented PAs, while less-affluent nations host larger, more-compact units. Relatively smaller and less-compact PAs were also found within the world’s most critically endangered biomes. The results highlight overlooked threats for the long-term conservation of nature and global environmental sustainability. As countries continue to expand their PA networks, the consideration of the spatial geometry of protected lands becomes urgent.
Un estudio de las redes de cooperación académica en la función investigación de las carreras de letras de la Universidad Nacional de la Patagonia Austral (1996-2016)
Un estudio de las redes de cooperación académica en la función investigación de las carreras de letras de la Universidad Nacional de la Patagonia Austral (1996-2016); A study of academic cooperation networks in the research function of Literature studies at the Universidad Nacional de la Patagonia Austral (1996-2016)
Forchino, María Verónica; Gasel, Alejandro Fabian
Al utilizar la metodología de análisis de redes sociales, a partir de los datos públicos disponibles en los informes de proyectos de investigación, observamos las dinámicas de colaboración, los colegios invisibles y la aparición y consolidación de grupos de investigación. En este marco el objetivo de este trabajo es estudiar la dinámica de colaboración académica en la Universidad Nacional de la Patagonia Austral (UNPA) mediante el análisis de redes de participación a eventos científicos de los grupos de investigación del campo de las letras (que incluyen estudios literarios, lingüísticos y semióticos) en el período de 1996 a 2016. Los resultados hallados pueden dar cuenta de la dinámica de institucionalización de la investigación en el campo de las letras desde las configuraciones de los grupos de investigación. Mediante el análisis de redes sociales y redes de afiliación hemos observado patrones que ponen de manifiesto diferentes herramientas para consolidar investigaciones en áreas específicas de las letras. Mediante la participación a eventos científicos los investigadores establecen colegios invisibles que favorecen a la consolidación de una comunidad con relaciones densas que, poco a poco, comienza a delimitar sus espacios y áreas de influencia. Realizamos el análisis de caso con la pretensión de sentar bases que demuestran la importancia de complementar los estudios de corte socio-históricos de institucionalización del campo académico con el análisis de redes de intelectuales, para poder enriquecer la comprensión de la dinámica de construcción colectiva del campo científico.; By utilizing the social network analysis methodology, based on publicly available data from research project reports, we observe the dynamics of collaboration, invisible colleges, and the emergence and consolidation of research groups. Within this framework, this study aims to investigate the dynamics of academic collaboration at the Universidad Nacional de la Patagonia Austral (UNPA) through the analysis of participation networks in scientific events among research groups in the field of Literature (including literary, linguistic, and semiotic studies) during the period from 1996 to 2016. The findings uncovered have the potential to provide insights into the institutionalization dynamics of research in the field of literature. Leveraging both social network and affiliation network analyses, this study reveals patterns that shed light on various strategies for consolidating research efforts within specific realms of literary exploration. Through participation in scientific events, researchers establish invisible intellectual communities that contribute to forming closely connected networks that gradually define their spaces and spheres of influence. This case study is a foundational effort, emphasizing the importance of complementing socio-historical studies of academic institutionalization with intricate analyses of intellectual networks. This comprehensive approach enriches understanding of the collective construction dynamics inherent within the scientific field.
Importance of urban green areas’ connectivity for the conservation of pollinators
Importance of urban green areas’ connectivity for the conservation of pollinators
Graffigna, Sofia; González Vaquero, Rocío Ana; Torretta, Juan Pablo; Marrero, Hugo Javier
Urbanization is one of the main processes generating large changes on the Earth's surface. The remaining green spaces within cities can be of utmost importance for pollinator conservation. Through a systematic literature review, we evaluate how the connectivity of urban green areas (parks, gardens, squares, among others) in different cities can affect the richness and abundance of pollinators. We utilize a connectivity metric using satellite images corresponding to 241 urban green areas obtained from 20 published works. The green areas were classified in urban, peri-urban and non-urban according to their percentage of impervious surface estimated in each image. The metric relates the connectivity of green areas contained within images with a radius of 500 m immersed within a city. Our study shows the richness and abundance of pollinators is positively correlated with the connectivity of green areas in sites with different degrees of urbanization, mainly in urban and peri-urban sites. Our results emphasize the importance of green spaces to maintain the pollinator’s community in cities, and suggest that proper design and/or management could improve conditions for these important insects.
Asociación entre Inflamación y Desempeño Cognitivo en Adultos: Revisión Sistemática en PubMed 2017-2022
Asociación entre Inflamación y Desempeño Cognitivo en Adultos: Revisión Sistemática en PubMed 2017-2022; Association Between Inflammation And Cognitive Performance In Adults: Systematic Review In Pubmed 2017-2022
Martino, Pablo Luis; Bonet, José; Cervigni, Mauricio; De Bortoli, Miguel Ángel; Gallegos, Miguel; Politis, Daniel Gustavo
Introducción: El declive de las funciones cognitivas es uno de los principales cambios negativos asociados al envejecimiento. En los últimos años creció el interés por determinar si la inflamación incide en el declive cognitivo y en qué magnitud. El objetivo fue revisar la literatura en busca de estudios que investigaron la asociación entre la inflamación y el desempeño en dominios cognitivos específicos (ej. memoria, atención o lenguaje), en adultos de todas las edades. Métodos: Fue consultada la base PubMed entre 2017-2022. Se procedió con una revisión sistemática conforme a la declaración PRISMA y se seleccionaron 27 artículos científicos. Resultados: 26 de 27 artículos advirtieron que mayor inflamación se asocia a peor desempeño en atención, memoria, funciones ejecutivas, lenguaje y velocidad de procesamiento, entre los principales dominios cognitivos. Las evidencias comprenden a adultos de distintas edades, con y sin antecedentes de enfermedad inflamatoria o neuropsiquiátrica. Ocho estudios longitudinales indicaron que la inflamación es un importante predictor del declive cognitivo. Conclusión: Un mayor nivel de inflamación se asocia a peor desempeño en dominios cognitivos específicos, con evidencias para adultos de distintas edades, con y sin antecedentes de enfermedad. Se ofrecen algunas recomendaciones metodológicas para mejorar la comparabilidad entre estudios.; Introduction: The decline of cognitive functions is one of the main negative changes associated with aging. In recent years, interest has grown in determining whether inflammation affects cognitive decline and to what extent. The objective was to review the literature for studies that investigated the association between inflammation and performance in specific cognitive domains (example, memory, attention, or language), and in adults of all ages. Methods: The PubMed database was consulted between 2017-2022. A systematic review was carried out according to the PRISMA statement and 27 scientific articles were selected. Results: 26 out of 27 articles warned that greater inflammation is associated with poorer performance in attention, memory, executive functions, language, and processing speed, among the main cognitive domains. The evidence includes adults of various ages with and without a history of inflammatory or neuropsychiatric disease. Eight longitudinal studies indicated that inflammation is an important predictor of cognitive decline. Conclusion: The reviewed studies suggest that a higher level of inflammation is associated with worse performance in specific cognitive domains, with evidence for adults of different ages, with and without a history of disease. Some methodological recommendations are offered to improve the comparability between studies.
Los biocombustibles y la transectorialidad del agronegocio en Córdoba, Argentina
Los biocombustibles y la transectorialidad del agronegocio en Córdoba, Argentina; Biofuels and cross-sectoral agrobusiness in Córdoba, Argentina
Saccucci, Erika Ave Oria; Reinoso, Paula Daniela
En este artículo se realiza un análisis documental de notas periodísticas y fuentes secundarias sobre las transformaciones del agronegocio en la provincia de Córdoba en Argentina en el período 2006-2023, en el marco de la crisis energética mundial y del desarrollo de agrocombustibles. Se identificaron un conjunto de sectores productivos que se articulan de modo transectorial, así como políticas locales que promueven y contribuyen a consolidar el territorio cordobés como un enclave estratégico a nivel nacional para la producción de bioetanol a base de maíz; lo que, por ejemplo, se expresa en el desarrollo de autovías para garantizar la conectividad entre los centros de producción de la materia prima y las industrias de producción agroenergética.; In this article we carry out a documentary analysis of journalistic notes and secondary sources of the transformation of agrobusiness in the province of Córdoba in Argentina in the context of the global energy crisis and the development of agrofuels. In this scenario, we identified a set of productive sectors that are articulated in a cross-sectoral way, as well as local policies that promote and contribute to consolidate the territory of Cordoba as a strategic enclave at a national level for the production of bioethanol based on corn; which, for example, is expressed in the development of highways to ensure connectivity between raw material production centres and agro-energy production industries.
Agentes Sanitarios y mSalud: Adopción de estrategias para la prevención del cáncer cervicouterino en Argentina
Agentes Sanitarios y mSalud: Adopción de estrategias para la prevención del cáncer cervicouterino en Argentina; Community Health Workers and mHealth: Adoption of strategies for the prevention of cervical cancer in Argentina
Sánchez Antelo, Victoria Inés María; Paolino, Melisa Delia; Arrossi, Silvina
Introducción: La estrategia ATICA es una intervención multicomponente basada en el envío de mensajes SMS a las mujeres VPH+ para promover la realización de la citología de triaje. Pasados 60 días, se envió además un correo electrónico y un mensaje al Agente Sanitario (AS) para que visitara a las mujeres que no habían acudido al triaje. Objetivo: Analizar las percepciones y experiencias de AS sobre barreras y facilitadores de la implementación de la intervención multicomponente y su intención de adoptarla en la rutina de trabajo. Métodos: Se utilizaron modelos teóricos de las ciencias de la implementación para diseñar una encuesta para los AS participantes del estudio ATICA. Se midió la asociación entre características de AS y factores que facilitaron u obstaculizaron la implementación y la intención de adoptar ATICA. Se utilizó el software IBM SPSS para calcular el chi-cuadrado y evaluar asociaciones. Resultados: De 221 participantes en ATICA, 197 AS completaron la encuesta. 78,3% adoptaría la estrategia en su rutina de trabajo sin diferencias entre perfiles sociodemográficos o según la familiaridad en el uso del teléfono. La intención de adoptar ATICA fue mayor entre quienes la perciben como una ventaja relativa (81% vs. 62,5%; p=0,04) y entre quienes fue fácil registrar el teléfono de la mujer (81,8% vs. 64,3%; p=0,04). 98,3% afirmó que se requieren estrategias para ampliar la cobertura de triaje en la provincia (hay tensión al cambio). Conclusión: La alta intención de adoptar la estrategia ATICA entre los AS contribuirá al futuro escalamiento de la intervención.; Introduction: the ATICA strategy was a multicomponent mHealth intervention based on sending SMS messages to HPV+ women to promote triage cytology. After 60 days, an email and a SMS message were also sent to the Community Health Worker (CHW) to visit women who had not attended triage. Aim: to analyze the perceptions of CHWs about barriers and facilitators of the implementation of the multicomponent intervention and their intention to adopt it. Methods: we evaluated the implementation of the intervention using the Consolidated Framework for Implementation Research (CFIR) and RE-AIM framework. CHWs were asked to complete an anonymous, self-administered survey to evaluate their intention to adopt the intervention and to identify barriers and facilitators. We measured the association between intention to adopt the ATICA strategy and CFIR constructs. We used IBM SPSS software to calculate the chi-square and evaluate associations. Results: of the 221 CHWs in the ATICA study, 197 completed the survey. 78,3 % of them would adopt the strategy in their work without differences between sociodemographic profiles or according to familiarity with phone use. The intention to adopt ATICA was higher among those who perceived it as a relative advantage (81 % vs. 62,5 %; p=0,04) and among those who found it easy to register phone numbers (81,8 % vs. 64,3 %; p=0,04). 98,3 % stated that strategies were needed to expand triage coverage in the province. Conclusion: the high intention to adopt the ATICA strategy among CHWs will contribute to the future scalingup of the intervention.
Agronegocio y crisis hídrica en la cuenca del río Paraná
Agronegocio y crisis hídrica en la cuenca del río Paraná; Agribusiness and water crisis in the Paraná river basin
Álvarez, Álvaro
En las últimas tres décadas se dio un proceso de expansión persistente del agronegocio y los monocultivos sobre la cuenca del río Paraná. Dicha expansión obedeció a un aumento de la demanda internacional de commodities lo que impulsó la denominada pampeanización del noreste argentino. Este fenómeno trajo aparejados dos procesos entrelazados: la construcción de una hidrovía sobre el río Paraná que permite la circulación y exportación de la producción agraria desde los principales puertos, y la expansión de los monocultivos sobre bosques nativos y humedales. La triada: agronegocios, deforestación e hidrovía, constituyen las dimensiones más importantes de análisis en esta investigación, que desde una mirada sistémica y compleja busca poner en contexto la crisis hídrica que atraviesa la región en general, y la bajante extrema del río Paraná en particular, para desentramar sus principales causas.; In the last three decades there has been a process of persistent expansion of agribusiness and monocultures in the Paraná River basin. This expansion was due to an increase in the international demand for commodities, which drove the so-called "pampeanization" of northeastern Argentina. This phenomenon brought about two intertwined processes: the construction of a waterway on the Paraná River that allows the circulation and export of agricultural production from the main ports, and the expansion of monocultures on native forests and wetlands. The triad: agribusiness, waterway and deforestation, constitute the most important dimensions of analysis in this research, which from a systemic and complex viewpoint seeks to put into context the water crisis that the region is going through in general and the extreme low water level of the Paraná River in particular, in order to unravel its main causes.
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