Pathogenicity of microsclerotia from Metarhizium robertsii against Aedes aegypti larvae and antimicrobial peptides expression by mosquitoes during fungal-host interaction Santos Da Paixao, Flavia Regina; Falvo, Marianel Lucía; Huarte Bonnet, Carla; Santana, Marianela; Garcia, Juan Jose; Fernandes, Éverton; Pedrini, Nicolás Aedes aegypti is a vector of various disease-causing arboviruses. Chemical insecticide-based methods for mosquito control have increased resistance in different parts of the world. Thus, alternative control agents such as the entomopathogenic fungi are excellent candidates to control mosquitoes as part of an ecofriendly strategy. There is evidence of the potential of entomopathogenic fungal conidia and blastospores for biological control of eggs, larval and adult stages, as well as the pathogenicity of fungal microsclerotia against adults and eggs. However, there are no studies on the pathogenicity of microsclerotia against either aquatic insects or insects that develop part of their life cycle in the water, such as the A. aegypti larvae. In this study, we assayed the production of microsclerotia and their pathogenicity against A. aegypti larvae of two isolates of Metarhizium robertsii, i.e., CEP 423 isolated in La Plata, Argentina, and the model ARSEF 2575. Both isolates significantly reduced the survival of A. aegypti exposed to their microsclerotia. The fungus-larva interaction resulted in a delayed response in the host. This was evidenced by the expression of some humoral immune system genes such as defensins and cecropin on the 9th day post-infection when the fungal infection was consolidated as a successful process that culminates in larvae mortality. In conclusion, M. robertsii microsclerotia are promising propagules to be applied as biological control agents against mosquitoes since they produce pathogenic conidia against A. aegypti larvae.

Cuarenta años de campañas electorales en el marco de cuarenta años de democracia D'adamo, Orlando; García Beaudoux, Virginia Inés Los cuarenta años de democracia implican cuarenta años de elecciones y campañas, cuatro décadas en las que tuvieron lugar cerca de cincuenta campañas electorales nacionales. En ellas, fuimos testigos de singulares fenómenos, como la emergencia de candidatos que pronto pasaron al olvido, o de partidos políticos que en alguna elección terciaron entre los primeros puestos logrando, inclusive, una cierta presencia parlamentaria y luego desaparecieron. Mirando hacia atrás, ¿qué podemos ver y recordar? El observatorio de campañas electorales de la Facultad de Ciencias Sociales de la UBA, guarda registro de los spots que se usaron en muchas de esas campañas y que nos ayudan, más allá de cualquier lectura partidista, a analizar qué sucedió en estos cuarenta años de democracia...

‘Sistematicidad en la filosofía crítica como doctrina de la sabiduría’ en Anuncio de la próxima conclusión de un tratado de paz perpetua en la filosofía de Kant; ‘Systematicity of the critical philosophy as a doctrine of wisdom’ in Kant’s Proclamation of the Imminent Conclusion of a Treaty of Perpetual Peace in Philosophy Quiroga, Noelia Eva; Campo Chang, Paula En este trabajo nos proponemos contribuir a demostrar como el sistema crítico kantiano se manifiesta en el Anuncio de la próxima conclusión de un tratado de paz perpetua en la filosofía, y cómo este opúsculo contribuye a dilucidar la doctrina de la sabiduría en relación a la razón práctica como fin último de la humanidad. Para nuestro propósito, primero, abordaremos el estado de guerra en que se encuentra el estatus de la filosofía. Segundo, exploraremos el método de la filosofía crítica para asegurar una metafísica posible. Tercero, focalizaremos en la prioridad práctica de la filosofía y en el fin último de la humanidad entendido como bien supremo. Finalmente, expondremos cómo las tesis desarrolladas junto a dos preocupaciones morales de Kant, la naturaleza de la filosofía y la humanidad, nos conducen hacia la idea del progreso y a la esperanza de una paz perpetua.; In this paper we propose to contribute to demonstrate how the Kantian critical system manifests in the Proclamation of the Imminent Conclusion of a Treaty of Perpetual Peace in Philosophy, and how this opuscule contribute to elucidate the doctrine of wisdom in relation to practical reason as the ultimate end of humanity. For our purpose, first, we will address the state of warfare in which the status of philosophy finds itself. Second, we will explore the method of critical philosophy to ensure a possible metaphysics. Third, we will focus on the practical priority of philosophy and on the ultimate end of humanity understood as the supreme good. Finally, we will explain how the theses developed together with Kant’s two moral concerns, the nature of philosophy and humanity, lead us to the idea of progress and the hope of perpetual peace.

Diversity and abundance of free-living nematodes from Carlini Station, 25 de Mayo/King George Island, Antarctica: A case study in pristine and disturbed soils Salas, Augusto; Fusaro, Bruno; Rusconi, José Matías; Rosales, Matías; Balcazar, Dario Emmanuel; Achinelly, Maria Fernanda; Chaves, Eliseo Jorge; Sauka, Diego Herman; Ruberto, Lucas Adolfo Mauro; Ansaldo, Martin The Antarctic continent hosts life forms specially adapted to the extreme climatic challenges. Among these organisms are nematodes, key organisms in the cycling of nutrients in soil food webs. These organisms are bioindicators of environmental disturbances, making their study essential for assessing the impact of human activity in this unique ecosystem. The Carlini Station and the Antarctic Specially Protected Area 132 on the 25 de Mayo/King George Island, Antarctica, has seen limited investigation of free-living soil nematodes. This study aimed to analyze free-living nematode communities in pristine soils and anthropic-intervened soils in the Carlini Station area. Nematodes were extracted from soil samples and morphologically identified at the genus and family levels to calculated ecological indices to assess nematode community structure. Ecological indices (abundance, maturity, enrichment, and soil food structure) were calculated and their values were compared between anthropic and pristine sites using the ANOSIM, SIMPER, and ANOVA statistical tests. Additionally, using molecular analysis, a phylogenetic study was conducted. The study identified four nematode genera, including Plectus spp., Calcaridorylaimus spp., Eudorylaimus spp., and Coomansus spp., with Plectus spp. being the most abundant and widely distributed. Anthropic sites had lower maturity and higher enrichment values, indicative of disturbance, while pristine sites exhibited higher maturity and structure values, suggesting a healthier soil food web. These results suggest that anthropic intervention disrupts nematode communities and represent a significant contribution to the understanding of free-living nematode communities in Antarctica.

PRODAN Photophysics as a Tool to Determine the Bilayer Properties of Different Unilamellar Vesicles Composed of Phospholipids Luna, Maria Alejandra; Girardi, Valeria Romina; Sánchez Cerviño, María Celina; Rivero, Guadalupe; Falcone, Ruben Dario; Moyano, Fernando; Correa, Nestor Mariano Vesicles formed by phospholipids are promising candidates for drug delivery. It is known that the lipid composition affects properties such as the rigidity-fluidity of the membrane and that it influences the bilayer permeability, but sometimes sophisticated techniques are selected to monitor them. In this work, we study the bilayer of different unilamellar vesicles composed of different lipids (1,2-dioleoyl-sn-glycero-3-phosphocholine, DOPC, and lecithin) and diverse techniques such as extruder and electrospun templates and using 6-propionyl-2-(N,N-dimethyl) aminonaphthalene (PRODAN) and its photophysics. Moreover, we were able to monitor the influence of cholesterol on the bilayers. We demonstrate that the bilayer properties can be evaluated using the emission feature of the molecular probe PRODAN. This fluorescent probe gives relevant information on the polarity and fluidity of the microenvironment for unilamellar vesicles formed by two different methods. The PRODAN emission at 434 nm suggests that the bilayer properties significantly change if DOPC or lecithin is used in the vesicle preparation especially in their fluidity. Moreover, cholesterol induces alterations in the bilayer’s structural and microenvironmental properties to a greater or lesser degree in both vesicles. Thus, we propose an easy and elegant way to evaluate physicochemical properties, which is fundamental for manufacturing vesicles as a drug delivery system, simply by monitoring the molecular probe emission band centered at 434 nm, which corresponds to the PRODAN species deep inside the bilayer.

Historical Factors of Long-Term Economic Growth and Declination in Argentina: An analysis of the 20th Century; Factores del Crecimiento de Largo Plazo y Declinación en Argentina: Un análisis del Siglo XX Dabús, Carlos Darío; Delbianco, Fernando Andrés This paper explores the historical long-term determinants of economic growth in Argentina along the XX century. The evidence indicates that at the beginning economic openness plays a key role to explain the successful performance achieved until the great crisis of 1930. From there on, and until the middle of the ́70s, Argentina maintained a similar growth of the previous period, which was driven by the domestic demand via investment. Nonetheless, in the last quarter of the past century economic growth slowed drastically, which was mainly associated with economic instability, approx-imated by infl ation and the per capita growth rate output volatility. The intuition is that once the country lost foreign markets for its exports, could temporarily sustain growth thanks to domestic demand, but once this strat-egy petered out the economy was signed by a long period of turbulence and stagnation, specifi cally since 1975 onwards. Thus, economic policy recom-mendations are to develop new led export-oriented sectors, so that alleviate the external restriction, as to avoid procyclical policies in order to reduce the economic instability.; Este trabajo explora los determinantes históricos del crecimiento económico de largo plazo en Argentina durante el siglo pasado. La evidencia indica que a principios de siglo la apertura económica jugó un rol clave para explicar el exitoso desempeño alcanzado hasta la gran crisis de 1930. De ahí en más, y hasta mediados de los ´70s, la economía mantuvo un crecimiento similar al del periodo previo, el cual estuvo impulsado por la demanda doméstica vía la inversión. Sin embargo, en el último cuarto del siglo pasado el crecimiento económico se redujo drásticamente, lo cual estuvo principalmente asociado con la inestabilidad económica, aproximada por la inflación y la volatilidad del crecimiento del producto per cápita. La intuición es que una vez que el país perdió mercados para sus exportaciones pudo mantener temporariamente el crecimiento gracias a la demanda interna, pero una vez que esta estrategia se agotó la economía entró en un largo periodo de turbulencia y estancamiento, específicamente desde 1975 en adelante. Por tanto, las recomendaciones de política son desarrollar nuevos sectores productivos orientados a la exportación, de manera de mitigar la restricción externa, así como evitar políticas procíclicas a fin de reducir la inestabilidad económica.

De lo que se trata es de seguir existiendo Miranda Pérez, José María; Pautasso, Pablo; Pazzarelli, Francisco Gustavo El texto presenta una reflexión antropológica sobre las perspectivas indígenas/andinas sobre el extractivismo en la provincia de Jujuy (Argentina), en el marco de las protestas de 2023 en contra de la modificación del texto constitucional. Se avanza sobre las ideas de Permiso y Respeto como parte de una cosmopraxis inevitable de relación con el entorno vivo, demostrando las distancias que poseen con el sentido común estatal-extractivista-académico.

Inoculation of tomato roots with single and mixed suspensions of Trichoderma harzianum ITEM 3636 conidia and Pseudomonas putida PCI2 cells Pastor, Nicolás Alejandro; Cejas, Leonardo Gabriel; Guiñazu, Lorena Belen; Rovera, Marisa; Torres, Adriana Mabel Mixes of compatible beneficial microorganisms can perform better than single strains to support plant health and growth. This study examined effects of inoculating tomato (Solanum lycopersicum L.) roots with individual and mixed suspensions of Trichoderma harzianum ITEM 3636 and Pseudomonas putida PCI2 on growth and yield in field assays. Culture filtrates were used to observe in vitro compatibility between strains. Effects of ITEM 3636 on tomato seedlings in vitro were studied. Scanning electron microscopy was used to examine root colonization by the bacterial and fungal strains. ITEM 3636 was compatible with PCI2 and improved root density in vitro. When compared to other treatments, co-inoculation of tomato plants consistently resulted in increases in the number of fruit and yield under field conditions. Co-inoculating tomato roots during transplanting with the studied microorganisms may improve plant survival and increase productivity.

Interferencia del brazo alternativo de NFkB y bloqueo de BCL2 como potenciales blancos terapèuticos en el Linfoma de Hodgkin clásico El brazo alternativo de NFkB exhibe un rol importante en la supervivencia de las células de Linfoma de Hodgkin clásico (cLH). Nuestros resultados previos mostraron la expresión de NIK (Kinasa Inductora de NFkB) y de BCL2 (uno de los principales genes controlados por esta vía de señalización) en las biopsias de pacientes con cLH. Reportamos que la expresión de BCL2 en las células de Hodgkin y Reed Sternberg, en las biopsias de pacientes con cLH al diagnóstico de la enfermedad primaria, resulta de utilidad como marcador de pronóstico. El objetivo de la data incluida en esta sección fue determinar los efectos del inhibidor de NIK (4H-isoquinolina-1,3-diona) y del bloqueante de BCL2 (venetoclax) como monodrogas y como terapia combinada en la línea celular L1236.

Illustrative videos about the behavior of Harpactor angulosus (Reduviidae, Harpactorinae) in laboratory conditions in Tucuman, Argentina The complete life cycle of Harpactor angulosus (Lepeletier & Serville, 1825) is described and illustrated. Specimens were collected in the field in El Manantial, San Miguel de Tucuman, Argentina. Nymphs and adults were reared in laboratory to obtain de complete life cycle and observe about its feeding habits, molting, mating, and oviposition.

Tabla : Cuadro Léxico de ciudad y patria en inglés antiguo (2022-2023) Cuadro comparativo del léxico de la patria en poemas en "Advent Lyrics" del Codex Exoniensis (Libro de Exeter) y otros poemas en inglés antiguo

Sueldos de policías y maestros en presupuestos provinciales de la provincia de Buenos Aires década de 1920 Este conjunto de datos contiene información sobre los sueldos de empleados provinciales (maestros y policías) según prepuestos provinciales de 1919 y 1925.

Interplay between climate change and climate variability: the 2022 drought in Central South America Patiño Arias, Lina Paola; Rivera, Juan Antonio; Sörensson, Anna; Zachariah, Mariam; Barnes, Clair; Philip, Sjoukje; Kew, Sarah; Vautard, Robert; Koren, Gerbrand; Pinto, Izidine; Vahlberg, Maja; Singh, Roop; Raju, Emmanuel; Li, Sihan; Yang, Wenchang; Vecchi, Gabriel A.; Otto, Friederike E. L. Since 2019, Central South America (CSA) has been reeling under drought conditions, with the last 4 months of 2022 receiving only 44% of the average total precipitation. Simultaneously to the drought, a series of record-breaking heat waves has affected the region. The rainfall deficit during October–November-December (OND) is highly correlated with the Niño3.4 index, indicating that the OND 2022 rainfall deficit is partly driven by La Niña, as observed in previous droughts in this region. To identify whether human-induced climate change was also a driver of the OND 2022 rainfall deficit, we analysed precipitation over the most impacted region. Our findings revealed a pattern of decreased rainfall over the past 40 years, although we cannot definitively conclude whether this trend exceeds what would be expected from natural variations. To clarify if this trend can be attributed to climate change, we looked at 1-in-20-year low rainfall events over the same region in climate models. The models show that the severity of low rainfall events decreases (i.e. they become wetter, the opposite of the trend observed in most weather records), although this trend is again not significant and is compatible with natural variability. Therefore, we cannot attribute the low rainfall to climate change. Moreover, our analysis of effective precipitation potential (evapotranspiration minus rainfall) shows that, in climate models, the increase in temperature does partly compensate for the increase in rainfall but only to offset the wetting, and does not lead to a significant climate change signal in effective precipitation. However, higher temperatures in the region, which have been attributed to climate change, decreased water availability in the models in late 2022, indicating that climate change probably reduced water availability over this period also in the observations, increasing agricultural drought, although this study did not quantify this effect. This means that even though the reduced rainfall is within the natural variability, the consequences of drought are becoming more severe due to the strong increase in extreme heat. The case of the OND 2022 rainfall deficit and the ongoing drought in CSA is a clear example of the interplay between climate variability and human-induced climate change. This shows the importance of considering not only those aspects associated with climate change but also climate variability in order to understand and attribute particular events or trends at the regional level.

Occurrence of pesticide residues in indoor dust of farmworker households across Europe and Argentina Navarro, Irene; de la Torre, Adrián; Sanz, Paloma; Balbi, Isabel; Harkes, Paula; Lwanga, EsperanzaHuerta; Norgaard, Trine; Glavan, Matjaz; Paskovic, Igor; Polić Pasković, Marija; Abrantes, Nelson; Campos, Isabel; Alcon, Francisco; Contreras, Josefina; Alaoui, Abdallah; Hofman, Jakub; Vested, Anne; Bureau, Matilde; Aparicio, Virginia Carolina; Mandrioli, Daniele; Sgargi, Daria; Mol, Hans; Geissen, Violette; Silva, Vera; Martínez, María Ángeles Pesticides are widely used as plant protection products (PPPs) in farming systems to preserve crops against pests, weeds, and fungal diseases. Indoor dust can act as a chemical repository revealing occurrence of pesticides in the indoor environment at the time of sampling and the (recent) past. This in turn provides information on the exposure of humans to pesticides in their homes. In the present study, part of the Horizon 2020 funded SPRINT project, the presence of 198 pesticide residues was assessed in 128 indoor dust samples from both conventional and organic farmworker households across Europe, and in Argentina. Mixtures of pesticide residues were found in all dust samples (25–121, min-max; 75, median). Concentrations varied in a wide range (<0.01 ng/g-206 μg/g), with glyphosate and its degradation product AMPA, permethrin, cypermethrin and piperonyl butoxide found in highest levels. Regarding the type of pesticides, insecticides showed significantly higher levels than herbicides and fungicides. Indoor dust samples related to organic farms showed a significantly lower number of residues, total and individual concentrations than those related to conventional farms. Some pesticides found in indoor dust were no longer approved ones (29 %), with acute/chronic hazards to human health (32 %) and with environmental toxicity (21 %).

The origin and dispersion of the bow in the Andes (16–37°S) based on a controlled database of projectile point metrics Castro, Silvina Celeste; Marsh, Erik Johnson; Yebra, Lucía Gabriela; Cortegoso, Valeria We present a discriminant metric study of stone projectile points (n = 422) from 21 archaeological sites in the Andes of South America (16–37°S). We use comparative datasets critically, since darts may have been smaller than previously thought. We assess the use-life of each point and tie them to reliable chronological sequences, in order to increase the reliability of our data. Our results show that in the Lake Titicaca Basin and northwestern Argentina, bows had replaced spearthrowers by 1780–950 cal BP, prior to the development of complex societies such as Wari and Tiwanaku. South of 29°S, the results suggest that bow technology was transmitted from north to south, since the earliest arrow-sized points at 29°S date to 3000 cal BP and at 37°S, 1800–1000 cal BP. North of 34°S, the continental limit of domesticated plants and animals, there is a gradual abandonment of the spearthrower. South of 34°S in northern Patagonia, both weapon systems coexisted. We suggest that bow and arrow technology was not an independent invention in the southern Andes, but instead, it appeared in new groups via macroregional technological borrowing among Andean herders.

Control mecánico en arbustos exóticos del género Pyracantha bajo tres frecuencias de corte Renison, Daniel; Barberá, Iván; Argibay, Daihana Soledad; Biraben, Matías; Cingolani, Ana María El control mecánico se utiliza ampliamente para reducir la invasión de arbustos exóticos; no obstante, en especies que rebrotan, el esfuerzo debe mantenerse hasta que el rebrote sea prácticamente nulo. Un régimen de cortes frecuentes implica un esfuerzo concentrado en menos tiempo, pero debería debilitar a la planta más rápidamente y podría redundar en un menor esfuerzo a largo plazo. En este contexto, nos propusimos determinar la frecuencia de cortes óptima. En las sierras de Córdoba, Argentina, seleccionamos 192 arbustos de Pyracantha angustifolia y P. aff. atalantioides, medimos sus tamaños, los cortamos en la base, aplicamos tres frecuencias de corte del rebrote (anual, bienal y al año 4) y registramos todos los tiempos de corte. Al año 5, la supervivencia fue 36, 83 y 91% para los arbustos cortados anual, bienal y al año 4, respectivamente. La altura promedio precorte fue 323±13 cm, y al año, el rebrote medía casi la mitad en todos los tratamientos. En el tratamiento de cortes anuales, el rebrote fue cada vez menor. En el tratamiento de corte bienal —en los años 2 y 4—, el rebrote alcanzó 84 y 88% de la altura original, respectivamente. En el tratamiento de corte al año 4, el rebrote llegó a una altura de 351±13 cm, superando en 20 cm su altura precorte. El número de frutos para el tratamiento de corte anual y bienal fue 0 y 33 frutos.arbusto-1.año-1, respectivamente, y en el tratamiento de corte al año 4, subió de 0 a 565±85 frutos.arbusto-1.año-1 desde el año 1 al 4. El único tratamiento con una reducción sostenida del tiempo de corte fue el anual. Concluimos que el control mecánico de Pyracantha debe contemplar una estrategia de cortes frecuentes.

Improvement of key molecular events linked to Alzheimer’s disease pathology using postbiotics Bulacios, Gabriela Agustina; Cataldo, Pablo Gabriel; Naja, Johana Romina; Posse de Chaves, Elena Ines; Taranto, Maria Pia; Minahk, Carlos Javier; Hebert, Elvira Maria; Saavedra, Maria Lucila In the past 50 years, life expectancy has increased by more than 20 years. One consequence of this increase in longevity is the rise of age-related diseases such as dementia. Alzheimer’s disease (AD) is the most common form of dementia, accounting for 60–70% of cases. AD pathogenesis is not restricted to the neuronal compartment but includes strong interactions with other brain cells, particularly microglia triggering the release of inflammatory mediators, which contribute to disease progression and severity. There is growing evidence revealing the diverse clinical benefits of postbiotics in many prevalent conditions, including neurodegenerative diseases. Here, we tested the ability of bacterial conditioned media (BCM) derived from selected lactic acid bacteria (LAB) strains to regulate core mechanisms relevant to AD pathophysiology in the microglia cell line BV-2. Levilactobacillus brevis CRL 2013, chosen for its efficient production of the neurotransmitter GABA, and Lactobacillus delbrueckii subsp. lactis CRL 581, known for its anti-inflammatory properties, were selected alongside Enterococcus mundtii CRL 35, a LAB strain that can significantly modulate cytokine production. BCM from all 3 strains displayed antioxidant capabilities, reducing oxidative stress triggered by beta-amyloid oligomers (oAβ1–42). Additionally, BCM effectively mitigated the expression of inflammatory cytokines, namely, TNF-α, IL-1β, and IL-6 triggered by oAβ1–42. Furthermore, our study identified that BCM from CRL 581 inhibit the activity of acetylcholinesterase (AChE), a crucial enzyme in AD progression, in both human erythrocytes and mouse brain tissues. Notably, the inhibitory effect was mediated by low-molecular-weight components of the BCM. L. delbrueckii subsp. lactis CRL 581 emerged as a favorable candidate for production of postbiotics with potential benefits for AD therapy since it demonstrated potent antioxidant activity, reduction of cytokine expression, and partial AChE inhibition. On the other hand, E. mundtii CRL 35 showed that the antioxidant activity failed to inhibit AChE and caused induction of iNOS expression, rendering it unsuitable as a potential therapeutic for AD. This study unveils the potential benefits of LAB-derived postbiotics for the development of new avenues for therapeutic interventions for AD.

Feminismos en las aulas de la FADU: políticas de género y diseño textil en Argentina; Feminist Perspectives in FADU Classrooms: Gender Policies and the Landscape of Textile Design in Argentina Soto, Helga Mariel Desde el ámbito de los estudios de género y la historia de los textiles, se han examinado numerosos ejemplos que destacan el papel del textil como vehículo y herramienta en la lucha feminista. Este fenómeno ha cobrado particular relevancia en los últimos años, desempeñando un papel fundamental en los movimientos latinoamericanos, especialmente en Argentina, que ha liderado la región en lo que respecta a la legalización del aborto. En este contexto, la presente ponencia se centra en analizar el impacto de estos discursos en el programa de diseño textil de la Universidad de Buenos Aires. Esta carrera es única en su tipo en el territorio argentino y, por ende, ha sido un semillero para la gestación de proyectos innovadores con una perspectiva socialmente avanzada. Por lo tanto, se examinarán los trabajos desarrollados en este ámbito académico a partir de 2015, fecha de la primera marcha Ni Una Menos. Se prestará atención a sus atributos materiales, funcionales y discursivos con el propósito de identificar y registrar estrategias de enfoque feminista en su concepción y desarrollo. El objetivo último, es descubrir cómo las futuras diseñadoras han respondido al panorama político feminista y cómo han integrado estas perspectivas en sus proyectos.; In the realms of gender studies and textile history, numerous instances have been scrutinized, underscoring the pivotal role of textiles as both a medium and instrument in the feminist movement. This phenomenon has gained pronounced significance in recent times, emerging as a cornerstone in Latin American activism, notably in Argentina, at the forefront of regional strides in abortion legalization. Against this backdrop, this paper delves into an analysis of the repercussions of these discourses on the textile design program at the University of Buenos Aires. As the sole program of its kind in Argentina, it has been a fertile ground for cultivating innovative projects imbued with a socially progressive perspective. The study scrutinizes work produced in this academic domain since 2015, the inception of the inaugural Ni Una Menos march. Emphasis will be placed on its material, functional, and discursive attributes to discern and document strategies steeped in feminist principles in both conception and execution. The overarching objective is to unveil how upcoming designers have navigated the feminist sociopolitical landscape and seamlessly integrated these perspectives into their projects.

Application of UV-B Light and Low-Toxicity Compounds to Prevent Postharvest Spoilage on Lemons Zuluaga Acosta, Jakeline; Volentini, Sabrina Inès; Debes, Mario Alberto; Hilal, Mirna Beatriz; Cerioni, Luciana; Rapisarda, Viviana Andrea Soy autor correspondiente compartido con la Dra. Rapisarda.Green and blue molds and sour rot, caused by Penicillium digitatum, P. italicum, and Geotrichum citri-aurantii, are posthar-vest diseases which represent an important economic issue in lemon production. Conventionally, their control involves the intensive use of synthetic fungicides, leading to the emergence of resistant strains and harmful residue accumulation on fruits. Present work explores the application of UV-B radiation (UVBr) and its combination with polyhexamethylene guanidine (PHMG) or natamycin on lemons as alternative strategy to manage fungal postharvest diseases caused by fungicide-sensitive and resistant local isolates. UVBr applied invitro inhibited mycelial growth and conidia viability of all pathogens at the highest assayed dose (5.2J cm−2). Light preventive treatment applied on lemons with a non-fungicidal and non-phytotoxic UVBr dose of 0.1J cm−2 significantly reduced disease incidences by approximately 30 to 55%, along with reducing disease severities. Both PHMG and natamycin effectively reduced disease incidences caused by all tested pathogens, with a notable synergistic effect when combining UVBr with natamycin against Penicillium-sensitive isolates. None of these treatments had adverse effects on fruit quality. Importantly, preventive UVBr treatment enabled lemons to maintain H2O2 levels at the wound site in the presence of P. digitatum, which typically suppresses H2O2 production in the host tissue. In conclusion, findings suggest that UVBr and its combination with low-toxicity compounds offer a promising environment-friendly alternative for controlling postharvest lemon diseases caused by both fungicide-sensitive and resistant pathogens.

Human X-chromosome non-coding variation in Latin American populations: A review; Variación no codificante del cromosoma X humano en poblaciones latinoamericanas: una revisión Catanesi, Cecilia Ines; Hohl, Diana María; Bolzan, Alejandro Daniel The human X-chromosome non-coding markers, such as short tandem repeats (STRs), single nucleotide polymorphisms (SNPs), insertion-deletions (INDELs) and Alu insertions, are useful for revealing relationships among populations and for the identification of individuals. In the last decades, a number of studies have been performed to determine the genetic structure of Latin American populations by using X-chromosome markers. These studies provided useful information regarding the genetic composition of these populations and their relationship with Native American, Asian and European populations. One of the most interesting findings achieved by X-chromosome studies is the bias in the sex ratio of individuals that gave rise to the current Latin American populations, as it was previously observed through the analysis of uniparental markers, and which is undoubtedly evidenced in the differential inheritance of X-chromosome in comparison to autosomes. Besides, the genetic drift process that affected Native American populations is more pronounced in X-chromosome markers than in autosomes. The present review summarizes our current knowledge concerning X-chromosome non-coding polymorphisms studied in Latin American populations.; Los marcadores no codificantes del cromosoma X humano, como las repeticiones cortas en tándem (STR), los polimorfismos de un solo nucleótido (SNP), las inserciones-deleciones (INDEL) y las inserciones Alu, son útiles para revelar la relación existente entre poblaciones, y también para la identificación de personas. En las últimas décadas, se han realizado una serie de estudios para determinar la estructura genética de las poblaciones latinoamericanas, utilizando marcadores de cromosoma X. Estos estudios proporcionaron información útil sobre la composición genética de estas poblaciones y su relación con las poblaciones nativas americanas, asiáticas y europeas. Uno de los hallazgos más interesantes logrados en estos estudios es el sesgo en la proporción de sexos de los individuos que originaron las poblaciones latinoamericanas actuales, tal como se observó previamente a través del análisis de marcadores uniparentales, y que queda evidenciado por la herencia diferencial del cromosoma X en comparación con los autosomas. Además, el proceso de deriva genética que afectó a las poblaciones nativas americanas actuó de manera más pronunciada en los marcadores del cromosoma X que en los autosomas. La presente revisión resume nuestro conocimiento actual sobre los polimorfismos no codificantes del cromosoma X estudiados en poblaciones latinoamericanas.