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Lesiones hepáticas en un neonato con alergia alimentaria: a propósito de un caso
Get PDFEl hallazgo de lesiones de forma incidental en ocasiones lleva a que los profesionales consideren realizar procedimientos invasivos excesivos. La alergia a proteína de leche de vaca tiene un amplio espectro de manifestaciones clínicas, predominando el compromiso del tubo digestivo, y se han descrito la presencia de manifestaciones hepáticas acompañantes. Se describe un caso de una paciente neonata que presentó una serie de lesiones que fueron interpretadas en un primer momento como complejos de Von Meyenburg con eventual resolución de las mismas.Incidentally found liver lesions sometimes leads professionals to consider performing excessive invasive procedures. Allergy to cow’s milk protein has a wide spectrum of clinical manifestations, predominantly the involvement of the digestive tract, and the association with liver lesions has been described.
We describe a patient who presented a series of lesions that were initially interpreted as Von Meyenburg complexes with eventual spontaneous resolution of the lesions
Age, growth, maturity and extinction risk of an exploited and endangered skate, Atlantoraja castelnaui, from off Uruguay and northern Argentina
No full textThe spotback skate Atlantoraja castelnaui (Arhynchobatidae) is a large and threatened skate species subjected to fishing pressure, endemic to the Southwest Atlantic that occurs from Rio de Janeiro, Brazil, to San Jorge Gulf, Argentina. The age, growth, age at maturity and the maximum intrinsic rate of population increase rmax of A. castelnaui were studied using 152 specimens collected from off Uruguay and north Argentina (35°–42° S), between June 2013 and February 2020. Vertebrae from 143 individuals were used for ageing (females: n = 83, size range 404–1300 mm total length, TL; males: n = 60, size range 400–1270 mm TL). Maximum ages determined for females and males were 30 and 28 years, respectively. To fit growth models, non-linear and Bayesian estimation approaches were considered. For the first approach, a set of four candidate growth (size-at-age) models were fitted: three-parameter von Bertalanffy, two-parameter von Bertalanffy with fixed L0, Gompertz and Logistic. In the second approach, von Bertalanffy, Gompertz and Logistic were fitted. For non-linear estimation, model selection indicated that the entire set of candidate growth models were supported by the data. The von Bertalanffy was selected as the best model for Bayesian estimation. There were no differences in growth between sexes. For the sexes combined, the von Bertalanffy growth model by Bayesian method was considered the most adequate to describe the growth of A. castelnaui (growth mean parameters ± S.D.: L∞ = 1210.29 ± 40.68 mm; k = 0.12 ± 0.01 years−1; L0 = 179.20 ± 11.62 mm). The age at maturity was estimated at 16.21 and 14.04 years for females and males, respectively. The maximum intrinsic rate of population increase rmax was estimated as 0.252 years−1. Life-history traits and rmax provided in the present study suggest that this species has a relatively low productivity and may be vulnerable to an intense fishing pressure
Análisis descriptivo de la enfermedad profesional por Covid-19 en trabajadores de la salud, Argentina, 2020
No full textIntroducción: Los trabajadores y las trabajadoras de la salud (TS) poseen la mayor exposición laboral al contagio SARS-CoV-2. El aumento de la infección y la mortalidad afecta a los sistemas sanitarios. El reconocimiento transitorio de la enfermedad COVID-19 como enfermedad profesional (EP) fue una medida de protección fundamental. El objetivo de este artículo es realizar una descripción de la EP por COVID-19 entre los TS durante los primeros 10 meses de la pandemia.
Métodos: Se solicitaron datos no publicados a la Superintendencia de Riesgos del Trabajo sobre TS con EP según sexo, edad, ocupación y provincia de residencia. Se calcularon la incidencia, la mortalidad y la letalidad entre TS mediante el análisis de 49 307 registros.
Resultados: La incidencia acumulada en el Sistema de Riesgos de Trabajo fue de 1479,6 infectados y 6 muertes por cada 10 000 asegurados. La incidencia entre los TS triplicó a la de la población general en edad de trabajar. Durante 2020 se produjeron 171 EP por día y una muerte cada dos días. El 69% de las infecciones afectaron a mujeres, mientras que el 66% de las muertes fueron en hombres. El personal de enfermería tuvo el 54% de las infecciones y el 58% de las muertes, mientras que en el personal médico estas cifras fueron de 28% y 32%, respectivamente.
Discusión: El 21% de TS no habrían notificado su infección como EP, pero el problema de notificación debe buscarse en las provincias. La incidencia para los TS en Argentina fue mayor que la informada en la bibliografía. Es necesario investigar la determinación ocupacional en los TS. La legislación debe incorporar definitivamente la COVID-19 al listado de EP.Introduction: The HCWs have the highest occupational exposure to the contagion of SARS-CoV-2. The increase in infection and mortality affects health systems. The recognition of COVID-19 as an Occupational Disease was a fundamental protection measure. The objective of this article was to make a description of OD due to COVID-19 among HCWs during the first 10 months of the pandemic.
Methods. Unpublished data were requested from the Superintendency of Occupational Hazards (SOH) on HCWs with OD according to sex, age, occupation y province.
Incidence, mortality and lethality were calculated among HCWs. The number of records analyzed was 49,307.
Results. The Accumulated Incidence in the Occupational Hazard System (OHS) was 1,479.6 infected and 6 deaths, for every 10,000 insured. The incidence among HCWs is double that of the general working- age population. During 2020 there were 171 OD per day and 1 death every other day. 69% of the infections affected women, while 66% of the deaths were men. Nursing accounted for 54% of infections and 58% among deaths, while among physicians they were 28% and 32%, respectively.
Discussion. 21% of HCWs would not have reported their infection as OD, but the notification problem must be sought in the provinces. The incidence for HCWs in our country was higher than that reported in the bibliography. It is necessary to investigate the occupational determination in the HCWs. Legislation must definitely incorporate COVID-19 into the list of OD
Towards an ideotype for food‑fuel dual‑purpose wheat in Argentina with focus on biogas production
No full textBackground: Wheat straw, one of the most abundant agricultural residues worldwide, can be used to produce biogas, which is considered one of the most efficiently produced renewable energies. Wheat grown with the dualpurpose of producing food and biogas should display simultaneously high grain and straw yields, low lodging susceptibility and high conversion efficiency of straw into biogas. The aims of this study were to determine the best food-fuel dual-purpose wheat candidates among 36 wheat genotypes—including French, CIMMYT and local (Criollo) germplasm—used in breeding programs in Argentina and to gain some insights into the relationships between key traits relevant for dual-purpose wheat genotypes.
Results: High variability in individual key traits for dual-purpose wheat ideotype has been found. Genotypes of French origin displayed the highest grain yield, and those of CIMMYT origin, the lowest straw yield. Genotypes of Criollo origin showed the highest lodging susceptibility, and French ones, the lowest. Straw yield was positively correlated with grain yield in all genotypes, and negatively correlated with plant height in genotypes of Criollo origin.
Straw conversion into biogas was measured in terms of the biogas potential production and kinetic parameters Bmax (maximum specific biogas production) and k (first-order kinetic constant) were analyzed. All key traits were analyzed together by a principal component analysis. Baguette 31 and SNR Nogal, two genotypes of French origin, showed high grain yield, high-to-very high straw yield, low lodging susceptibility, and moderate-to-high Bmax and k. Buck Guapo and Buck Baqueano, two genotypes of Criollo origin, displayed good values for grain yield, straw yield and Bmax and k. However, their high lodging susceptibility precludes their production in shallow soils or high-input systems.
Lastly, some old genotypes (e.g. Klein Atlas) harbored a good combination of all key traits and could prove valuable to be included in future breeding programs for dual-purpose wheat.
Conclusions: While none of the genotypes excelled in every key trait, a few candidates showed potential for dualpurpose ideotype, particularly Baguette 31 and SNR Nogal. The challenge lays in gathering all attributes for food and 2G fuel in the same genotype
¿Son posibles otra(s) economía(s)?: la disputa por la tecnología al servicio de la Economía Popular Social y Solidaria
No full textEsta ponencia se enmarca en el proceso llevado a cabo por parte de la comercializadora El Paseo, que a su vez es parte del proyecto de extensión denominado “Fortaleciendo El Paseo”. Se buscará mencionar fugazmente el proceso de la comercializadora, analizando brevemente que se entiende por Economía Popular Social, Solidaria (EPSyS) y Economía del Cuidado, y se hará especial mención al proceso de elaboración y creación de la página web de esta unidad productiva. Entendiendo el lugar que debe ocupar la tecnología en los procesos colectivos y el aporte sustancial que debe hacer la misma a la economía popular
Measuring land surface temperature, near-infrared and short-wave infrared reflectance for estimation of water availability in vegetation
Get PDFThe vegetation water status is a crucial variable for modelling of drought impact, vegetation productivity and water fluxes. Methods for spatial estimation of this variable still need to be improved. The integration of remotely sensed data of land surface temperature (LST) and water vegetation indices based on near-infrared (NIR) and short-wave infrared (SWIR) reflectance for estimation of vegetation water content and water available for evapotranspiration require more analysis. This study contains a detailed method and measurements of LST, NIR and SWIR reflectance of soybean, corn and barley taken in field campaigns in central Argentine Pampas and laboratory with a ST PRO Raytek (8–14 μm) and a spectrometer SVC HR-1024i (0.35 and 2.5 μm). Also, relative water content of leaves was measured in laboratory during the dehydration process. This method and dataset could be also used for researching other wavelengths between 0.35 and 2.5 μm as indicator of water vegetation status (e.g. solar-induced chlorophyll fluorescence, photosynthesis).
•Procedures useful to measure field spectra of vegetation are presented.
•Not only the traditional method to measure leaves spectra in laboratory, but also in field were applied.
•The method allows the integration of spectra and thermal data as a proxy of vegetation water status
COVID-19 y educación: primer acercamiento analítico a la situación en Argentina.
Get PDFEl presente artículo presenta una primera lectura del impacto de la pandemia de coronavirus en las prácticas escolares cotidianas. En primer lugar, se describe la situación del sistema educativo argentino a partir de la sanción, en el año 2006, de la Ley Nacional de Educación 26.206 y se analizan las transformaciones del mismo desde entonces. En el contexto actual, se suma como agravante la suspensión de las clases presenciales como consecuencia del COVID-19, que obliga a los actores educativos a tomar decisiones para el sostenimiento de la continuidad pedagógica y configura un escenario particular. Ante esta situación, se presenta un primer acercamiento analítico a la incorporación y uso de las tecnologías digitales en el proceso de enseñanzaaprendizaje. En lo que respecta a lo metodológico, para la elaboración del artículo se recurre al uso de metodologías de investigación propias de las Ciencias Sociales, particularmente: interpretación de documentos oficiales –estadísticas, resoluciones-, entrevistas informales a diferentes actores educativos y sistematización de fuentes secundarias.Este artigo apresenta uma primeira leitura do impacto da pandemia do coronavírus nas práticas escolares diárias. Em primeiro lugar, descreve-se a situação do sistema educacional argentino após a sanção, em 2006, da Lei Nacional de Educação 26.206 e analisam-se as transformações da mesma desde então. No contexto atual, a suspensão das aulas presenciais em decorrência do COVID-19 acrescenta-se como um agravante, que obriga os atores educacionais a tomarem decisões para manter a continuidade pedagógica e configura um determinado cenário. Diante dessa situação, apresenta-se uma primeira abordagem analítica da incorporação e uso de tecnologias digitais no processo de ensino-aprendizagem. No que diz respeito ao procedimento metodológico, para a elaboração do artigo recorre-se a metodologias de investigação próprias das Ciências Sociais, nomeadamente: interpretação de documentos oficiais -estatísticas, resoluções-, entrevistas informais com diferentes atores educativos e sistematização de fontes secundárias.This article presents a first reading of the impact of the pandemic coronavirus on daily school practices. First, the situation of the Argentine educational system is described as of the sanction, in 2006, of the National Law of Education 26.206 and the transformations of the same since then is analyzed. In the current context, the suspension of face-to-face classes as a consequence of COVID-19 is added as an aggravating factor, which forces educational actors to make decisions to maintain pedagogical continuity and configures a particular scenario. In this situation, a first analytical approach is presented to the incorporation and use of digital technologies in the teaching-learning process. With regard to the methodological, for the preparation of the article the use of research methodologies typical of the Social Sciences is used, particularly: interpretation of official documents -statistics, resolutions-, informal interviews with different educational actors and systematization of secondary sources
Acta n° 1531
No full text1. Aprobación del Orden del Día
2. Informe de Presidencia
3. Dirección Provincial de Gestión, Seguimiento y Desarrollo de la Actividad Científica
4. Dirección Provincial de Vinculación y Transferencia
5. Otro
Diseño estratégico y participativo en emprendimientos integrados
Get PDFEl objetivo de este artículo es analizar las relaciones entre las teorías del diseño estratégico y el diseño participativo, en alianzas comerciales múltiples entre emprendedores locales de diversos sectores y su aplicación integrada en el contexto urbano. Diversos autores han tratado estos temas estratégicos de manera aislada y con menor frecuencia los han abordado desde la experiencia emprendedora. Una revisión de la literatura específica nos permite dar cuenta de los principales conceptos involucrados sobre este enfoque. El caso que se analiza refiere a un emprendimiento vinculado al fitness en la ciudad de La Plata, que articuló junto a otros actores locales una estrategia colaborativa que dio lugar a la aplicación de un modelo de negocios superador para su sector. Complementariamente, capitalizó su rol de influencer en la red social Instagram, como forma de potenciar la integralidad del proyecto. Los temas que se abordan sintetizan los conceptos claves que nos permiten interpretar la praxis relevada. Y a partir de ellos conformar un modelo que pueda ser aplicado en otros mercados y territorios para impulsar el desarrollo local joven. Y de esta forma distintos actores, productos y servicios complementarios sirvan para promover conjuntamente una cultura coproductiva y autogestiva.The objective of this article is to analyze the relationships between theories of strategic design and participatory design, in multiple commercial alliances between local entrepreneurs from different sectors and their integrated application in the urban context. Various authors have dealt with these strategic issues in isolation and less frequently have addressed them from the entrepreneurial experience. A review of the specific literature allows us to account for the main concepts involved in this approach. The case being analyzed refers to a fitness-related venture in the city of La Plata, which articulated, together with other local actors, a collaborative strategy that led to the application of a superior business model for its sector. In addition, he capitalized on his role as an influencer on the social network Instagram, as a way to enhance the project's comprehensiveness. The topics that are addressed synthesize the key concepts that allow us to interpret the praxis relieved. And from them, create a model that can be applied in other markets and territories to promote young local development. And in this way, different actors, complementary products and services serve to jointly promote a co-productive and self-managed culture
Proposal of a Data Warehouse for Scholarly Institutions built on Institutional Repositories
Get PDFA Data Warehouse (DW) is a tool that integrates and unifies information from multiple data sources available in an organization, and is used to assist decision making. In academic institutions, a Data Warehouse oriented to scientific and academic intellectual production could provide valuable information to understand, optimize and promote the processes involved in intellectual production, such as what type of resources are produced, in what areas research is conducted, who conducts this research, when the different resources are generated, what mechanisms are used to produce or disseminate the resources, and how they are used both internally and externally. Although there are many systems within academic institutions, this paper proposes to use the data sources that make up the institutional repositories to start developing a DW, due to the volume of information that can be handled, the reliability of the hosted data, the interoperability tools available and the services and infrastructure in the area