Ana Hidalgo- Universidad Indoamerica
Ana Hidalgo
- Universidad Indoamerica
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44
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Publications (44)
La presente contribución se propone sistematizar un trabajo de campo realizado durante los años 2020-2021 sobre las agendas de los medios digitales de la provincia de San Luis, Argentina.El estudio parte en considerar el lugar que ocupan las noticias referidas a las prácticas de la Economía Social y Solidaria (ESS) en la agenda de los medios selecc...
El presente artículo pretende abordar la noción de “respetabilidad” como una construcción social y, por tanto, comunicacional de las relaciones que establecen las trabajadoras de la Economía Social en San Luis. Tal categoría es puesta en diálogo a partir de la dimensión del silencio que integra la concepción de comunicación del sector, recuperada d...
El presente trabajo se propone presentar las trayectorias e itinerarios socio-ocupacionales de las trabajadoras y los trabajadores del sector de la Economía Social en la provincia de San Luis. El abordaje considera la propuesta metodológica de los hitos conflictuantes para dar cuenta de los sentidos comunicacionales. La población de estudio conside...
El propósito de este artículo consiste en presentar el sector cooperativo de la ciudad de San Luis en Argentina reconocido hasta mayo de 2022. El trabajo sistematiza una serie de antecedentes específicos de otras contribuciones relevantes que, en el marco de la Economía Social y Solidaria (ESS), realizaron investigaciones similares en otros territo...
Esta contribución se propone construir un posicionamiento ante el conocimiento basado en el diálogo de saberes cuando el contenido del mismo es la comunicación en el marco de la integralidad de funciones universitarias. En este contexto, se reconoce como necesaria la construcción de un “nosotros” como momento relacionante de la propia subjetividad...
El presente artículo se aboca a presentar diversas perspectivas, concepciones y preguntas para un abordaje situado de la comunicación en las prácticas sociales constitutivas de la extensión universitaria. El mismo se desarrolla sobre la base de reflexiones y sistematizaciones de diferentes experiencias que se produjeron en instancias múltiples deve...
An adequate moisture resistance is a key element to guarantee the durability of asphalt materials. This paper identifies the influence of filler typology and bitumen content on the mechanical response of asphalt mortars before and after water action. Two fillers were evaluated: Portland cement and Calcium carbonate, along with different contents of...
This article presents a new methodology of analysis based on a fast-running experimental procedure to characterise the mechanical response of asphalt mortars in terms of stiffness, ductility, and fatigue resistance. This was achieved using the DMA (Dynamic Mechanical Analyser) three-point bending configuration. The study was carried out by consider...
The main characteristics of bituminous mixtures manufactured with a considerable amount of reclaimed asphalt pavement (RAP), compared to conventional mixtures, are a reduction in workability, an increase in stiffness, and a loss of ductility, due to the presence of the aged bitumen contained in the RAP particles. To minimize these impacts, softer b...
Since 2004 and for the first time in the history of broadcasting in the region, a dozen Latin American countries have acknowledged community radio and television stations as legal providers of audiovisual communication services. In Argentina, a law passed in 2009 not only awarded legal recognition to the sector, it also provided a promotion mechani...
Las radios y televisoras comunitarias en la Argentina cuentan con una larga y diversa trayectoria que se remonta a cuatro décadas atrás, y se encuentran en todo el territorio del país.A pesar de su relevancia, no existen aún datos completos y fiables sobre la cantidad y características de emisoras activas en el Estado, las universidades, ni las red...
Desde 2004, por primera vez en la historia de la radiodifusión de la región, una decena de países latinoamericanos reconocieron a las radios y televisiones comunitarias, alternativas y populares como prestadoras legales de servicios de comunicación audiovisual. Este cambio en las regulaciones y políticas estatales se dio junto con una modificación...
Este trabajo se propone realizar una mirada acerca del Friso de Beethoven (1902) desde la hermenéutica filosófica, a fin de vincular las nociones de arte, comunicación y cultura desde un horizonte de sentido posible que aborde la mujer. Las primeras preguntas se orientan hacia la noción de Gesamtkunstwerk de la puesta klimtiana de la XIV Exposición...
Las nociones de comunicación y desarrollo registran en el campo de investigación en comunicación en América Latina, importantes antecedentes. Este artículo se propone sistematizar ambos conceptos en una posible categorización que permita leer sus interrelaciones atravesados por los condicionamientos históricos, sociales y políticos que constituyero...
Background
Identification of potential drug safety problems using statistical screening algorithms in routinely collected databases of adverse drug reactions (ADRs) requires decision rules based on thresholds of the chosen parameters. Choosing higher or lower thresholds changes both the sensitivity of the screening and the number of false alarms pr...
Background:
Screening large databases of spontaneous case reports of possible adverse drug reactions (ADRs) is an established method of identifying hitherto unknown adverse effects of medicinal products; however, there is a lack of consensus concerning the value of formal statistical screening procedures in guiding such a process. This study was p...
The intracellular oxidative stress has been involved in bile acid-induced cell death in hepatocytes. Nitric oxide (NO) exerts cytoprotective properties in glycochenodeoxycholic acid (GCDCA)-treated hepatocytes. The study evaluated the involvement of Ca2+ on the regulation of NO synthase (NOS)-3 expression during N-acetylcysteine (NAC) cytoprotectio...
Ca(2+) mobilization, nitric oxide (NO), and oxidative stress have been involved in cell death induced by hydrophobic bile acid in hepatocytes. The aim of the study was the elucidation of the effect of the antioxidant mitochondrial-driven ubiquinone (Mito Q) on the intracellular Ca(2+) concentration, NO production, and cell death in glycochenodeoxyc...
Hepatic steatosis is a risk factor for the progression of non-alcoholic fatty liver disease. The role of pro-inflammatory interleukin (IL)-6 in hepatic steatosis etiology is controversial. We investigated in vivo and in primary hepatocyte cultures whether IL-6 has a modulator role in liver and mitochondria lipid composition and cell death in a chol...
Hepatocellular carcinoma (HCC) is the fifth most commonly occurring cancer worldwide. The expression of p27 has been related to reduced severity of tumor grade and recurrence of HCC. The study assessed the role of p27 on the cell proliferation and death, and DNA mutagenesis in experimental genotoxicity induced by aflatoxin B1 (AFB(1)) in cultured h...
D-Galactosamine (D-GalN) induces reactive oxygen species (ROS) generation and cell death in cultured hepatocytes. The aim of the study was to evaluate the cytoprotective properties of N-acetylcysteine (NAC), coenzyme Q(10) (Q(10)) and the superoxide dismutase (SOD) mimetic against the mitochondrial dysfunction and cell death in D-GalN-treated hepat...
Objective: To analyse the prevalence of cardiovascular risk factors (CVRF) and metabolic syndrome (MS) in a cohort of HIV-infected patients. Methods: Observational, multicenter, and cross-sectional study of all HIV-infected outpatients from five hospitals in Málaga (Southern Spain). A questionnaire about CVRF, a physical exploration, and 12 hours f...
Objectives
To study the usefulness of SF-36 in the forensic clinic as an objective complementary test for the assessment of body injuries.
The liver is one organ clearly influenced by nitric oxide (NO), and acute and chronic exposure to this substance has been associated with distinct patterns of liver disease. Disruption or deregulation of S-nitrosothiol (SNO) signalling leads to impairment of cellular function and disease, and this study was aimed to identify potential targets for p...
Data on occult HBV infection in HIV patients are conflicting. We aimed to analyse the prevalence and clinical significance of occult hepatitis B in HIV-infected subjects.
An open-label, cross-sectional, multicentre study including all subjects with isolated anti-HBc seropositivity from a cohort of 3,030 HIV-infected patients was undertaken. HBsAg a...
Our objective was to analyze the prevalence of peripheral arterial disease (PAD) in HIV patients at risk and to compare them with the general population. All HIV patients older than 50 years who attended our unit from October 2005-July 2006 and all persons attending for an annual medical checkup at an employees' insurance association during the sam...
To determine whether postprandial lipid levels are markers of clinical and subclinical macrovascular disease in a select group of patients with type 2 diabetes.
We recruited 119 local patients with type 2 diabetes and moderate metabolic control (HbA1c <8%). The patients were being treated with dietary measures and/or oral antihyperglycemic therapy....
There are currently several suitable and different antiretroviral regimens to start highly active antiretroviral therapy (HAART), and many clinicians and patients prefer once-daily therapy. The efficacy and potency of efavirenz (EFV) has been established in many clinical trials and cohort studies; its pharmacokinetics, allowing for a convenient onc...
To analyse the characteristics of HIV-infected patients admitted to an Intensive Care Unit (ICU) and to compare them in the pre-highly active antiretroviral therapy (HAART) and HAART eras.
All HIV-infected patients who were admitted to the ICU of our hospital between January 1990 and December 2003 were reviewed. Patients were divided into two group...
The emergence of bacterial resistance to the major classes of antibiotics has become a serious problem over recent years. For aminoglycosides, the major biochemical mechanism for bacterial resistance is the enzymatic modification of the drug. Interestingly, in several cases, the oligosaccharide conformation recognized by the ribosomic RNA and the e...
The molecular recognition of streptomycin by Bacillus subtilis aminoglycoside-6-adenyl transferase has been analysed by a combination of NMR techniques and molecular dynamic simulations. This protein inactivates streptomycin by transferring an adenyl group to position six of the streptidine moiety. Our combined approach provides valuable informatio...
Herein, we describe how the conformational differences exhibited by aminoglycosides in the binding pockets of the ribosome and those enzymes involved in bacterial resistance can be exploited in the design of new antibiotic derivatives with improved activity in resistant strains. The simple modification shown in the figure, leading to the conformati...
It is commonly known that the exo-anomeric effect is a major factor governing the conformational behavior of naturally occurring oligosaccharides. Conformational flexibility in these molecules mainly concerns the aglycon psi angle since phi is restricted by this stereo-electronic effect. In fact, to the best of our knowledge no case of a natural gl...
For the first time in natural O-glycosides, a large amount of non-exo-anomeric conformation is experimentally detected, in solution.
