2,266 research outputs found

    Video documental sobre el grupo huasipungo

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    This thesis work is a research prior to obtaining the Bachelor’s degree in social Communication, whose main objective is the realization and production of a documentary video of the musical group call Huasipungo or Huasipungo cultural Center as a communication tool that opens the window to allow discussion concerning the revaluation of Popular Ecuadorian Culture. This paper has as theoretical support the Popular Communication approach from different forms of expression, which help build the imagination of popular culture through alternative media. It starts from an analysis of the mass media as entities massification and globalization as ways of living and how these facts affect the construction of popular culture, because through the mass they have generated processes that away from cultural realities which are developed in the country and building a reality from everyday life, coexistence, development of people.La presente tesis, es un trabajo de investigación previo a la obtención del título de la licenciatura en comunicación social, cuyo objetivo principal es la realización y producción de un video documental del grupo musical Huasipungo o centro cultural Huasipungo como una herramienta de comunicación que permita abrir la ventana para la discusión respecto a la revalorización de la cultura popular ecuatoriana. Este trabajo tiene como sustento teórico el planteamiento de la comunicación popular, desde las diferentes formas de expresión, que ayudan a construir el imaginario de la cultura popular a través de los medios alternativos de comunicación. Parte de un análisis de los mass media como entes de masificación y globalización de formas de vivir y cómo estos fenómenos afectan la construcción de la cultura popular, pues a través de los medios masivos se han generado procesos de alejamiento de muchas realidades culturales que son propias en el país y que construyen una realidad desde la cotidianidad, convivencia, desarrollo de las personas

    Small particle-size talc is associated with poor outcome and increased inflammation in thoracoscopic pleurodesis

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    Rationale: Talc is very effective for pleurodesis, but there is concern about complications, especially acute respiratory distress syndrome. Objectives: It was the aim of this study to investigate if talc with a high concentration of small particles induces greater production of cytokines, and if pleural tumor burden has any influence on the local production and spillover of cytokines to the systemic circulation and eventual complications. Methods: We investigated 227 consecutive patients with malignant effusion submitted to talc pleurodesis. One hundred and three patients received 'small-particle talc' (ST; containing about 50% particles <10 ¿m) and 124 received 'large-particle talc' (with <20% particles <10 ¿m). Serial samples of both pleural fluid and blood were taken before and 3, 24, 48 and 72 h after thoracoscopy. Also, mesothelial cells were stimulated with both types of talc in vitro. Measurements and Results: Interleukin-8, tumor necrosis factor-¿, vascular endothelial growth factor, basic fibroblast growth factor and thrombin-antithrombin complex were measured in all samples. Early death (<7 days after talc) occurred in 8 of 103 patients in the ST and in 1 of 124 in the 'large-particle talc' group (p = 0.007). Patients who received ST had significantly higher proinflammatory cytokines in pleural fluid and serum after talc application, and also in supernatants of the in vitro study. Pleural tumor burden correlated positively with proinflammatory cytokines in serum, suggesting that advanced tumor states induce stronger systemic reactions after talc application. Conclusions: ST provokes a strong inflammatory reaction in both pleural space and serum, which is associated with a higher rate of early deaths observed in patients receiving it.Instituto de Salud Carlos III FIS 04/028

    New Perspectives Related to the Bioluminescent System in Dinoflagellates: Pyrocystis lunula, a Case Study

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    Pyrocystis lunula is considered a model organism due to its bioluminescence capacity linked to circadian rhythms. The mechanisms underlying the bioluminescent phenomenon have been well characterized in dinoflagellates; however, there are still some aspects that remain an enigma. Such is the case of the presence and diversity of the luciferin-binding protein (LBP), as well as the synthesis process of luciferin. Here we carry out a review of the literature in relation to the molecular players responsible for bioluminescence in dinoflagellates, with particular interest in P. lunula. We also carried out a phylogenetic analysis of the conservation of protein sequence, structure and evolutionary pattern of these key players. The basic structure of the luciferase (LCF) is quite conserved among the sequences reported to date for dinoflagellate species, but not in the case of the LBP, which has proven to be more variable in terms of sequence and structure. In the case of luciferin, its synthesis has been shown to be complex process with more than one metabolic pathway involved. The glutathione S-transferase (GST) and the P630 or blue compound, seem to be involved in this process. In the same way, various hypotheses regarding the role of bioluminescence in dinoflagellates are exposed

    Preferencias por formatos de respuesta en cuestionarios para encuestas

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    La investigación sobre formatos de respuesta se ha centrado tradicionalmente en las características que estos elementos pueden tener en cuestiones como la fiabilidad o la validez, así como en qué medida algunos aspectos concretos, como la categoría central, tienen consecuencias en las interpretaciones de las puntuaciones. En este trabajo, el objetivo central es medir las preferencias por unos u otros formatos de las personas entrevistadas, entre los disponibles en el cuestionario utilizado para la encuesta. Para ello se han considerado únicamente tres tipos de ítems en función del formato de respuesta: discreto de cuatro puntos, discreto de cinco puntos y continuo. Estas tres categorías permiten medir la tendencia hacia la utilización de categorías o de un continuo, así como el grado de preferencia por formatos que permitan una respuesta intermedia. Los resultados muestran, entre otros aspectos, que la mayoría de las personas entrevistadas prefieren formatos discretos a los continuos y categorías impares a las pares (posibilidad de explicitar una respuesta intermedia).Ministerio de Educación y Ciencias BSO2000-108

    Daylight Saving Time transitions and Cardiovascular Disease in Andalusia: Time Series Modeling and Analysis Using Visibility Graphs

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    The present study aimed to determine whether transitions both to and from daylight saving time (DST) led to an increase in the incidence of hospital admissions for major acute cardiovascular events (MACE). To support the analysis, natural visibility graphs (NVGs) were used with data from Andalusian public hospitals between 2009 and 2019. We calculated the incidence rates of hospital admissions for MACE, and specifically acute myocardial infarction and ischemic stroke during the 2 weeks leading up to, and 2 weeks after, the DST transition. NVG were applied to identify dynamic patterns. The study included 157 221 patients diagnosed with MACE, 71 992 with AMI (42 975 ST-elevation myocardial infarction (STEMI) and 26 752 non-ST-elevation myocardial infarction (NSTEMI)), and 51 420 with ischemic stroke. Observed/expected ratios shown an increased risk of AMI (1.06; 95% CI (1.00–1.11); P = .044), NSTEMI (1.12; 95% CI (1.02–1.22); P = .013), and acute coronary syndrome (1.05; 95% CI (1.00–1.10); P = .04) around the autumn DST. The NVG showed slight variations in the daily pattern of pre-DST and post-DST hospitalization admissions for all pathologies, but indicated that the increase in the incidence of hospital admissions after the DST is not sufficient to change the normal pattern significantly

    COVID-19 pandemic on coronary artery and cerebrovascular diseases in Southern Spain: interrupted time series analysis

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    OBJECTIVE: Healthcare systems have been put under intense pressure by the COVID-19 pandemic, although some studies have shown a decline in hospital admissions for cardiovascular and cerebrovascular diseases during the first and second wave of the pandemic. In addition, studies analyzing gender and procedural differences are scarce. The present study aimed to determine the impact of the pandemic on hospital admissions for acute myocardial infarction (AMI) and cerebrovascular disease (CVD) in Andalusia (Spain) and analyzed differences by gender and by percutaneous coronary interventions performed. PATIENTS AND METHODS: An interrupted time series analysis of AMI and CVD hospital admissions in Andalusia (Spain) was carried out to measure the impact of the COVID-19 outbreak. AMI and CVD cases admitted daily in public hospitals of Andalusia between January 2018 and December 2020 were included. RESULTS: During the pandemic, significant reductions in AMI [-19%; 95% confidence interval (CI): (-29%, -9%), p<0.001] and CVD [-17%; 95% CI: (-26%, -9%); p<0.01] in daily hospital admissions were observed. Differences were also produced according to the diagnosis (ST-Elevation Myocardial Infarction, Non-ST-Elevation Myocardial Infarction, other AMI and stroke), with a greater reduction in females for AMI and in males for CVD. Although there were more percutaneous coronary interventions during the pandemic, no significant reductions were observed

    On the monitoring of surface displacement in connection with volcano reactivation in Tenerife, Canary Islands, using space techniques

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    Geodetic volcano monitoring in Tenerife has mainly focused on the Las Cañadas Caldera, where a geodetic micronetwork and a levelling profile are located. A sensitivity test of this geodetic network showed that it should be extended to cover the whole island for volcano monitoring purposes. Furthermore, InSAR allowed detecting two unexpected movements that were beyond the scope of the traditional geodetic network. These two facts prompted us to design and observe a GPS network covering the whole of Tenerife that was monitored in August 2000. The results obtained were accurate to one centimetre, and confirm one of the deformations, although they were not definitive enough to confirm the second one. Furthermore, new cases of possible subsidence have been detected in areas where InSAR could not be used to measure deformation due to low coherence. A first modelling attempt has been made using a very simple model and its results seem to indicate that the deformation observed and the groundwater level variation in the island may be related. Future observations will be necessary for further validation and to study the time evolution of the displacements, carry out interpretation work using different types of data (gravity, gases, etc) and develop models that represent the island more closely. The results obtained are important because they might affect the geodetic volcano monitoring on the island, which will only be really useful if it is capable of distinguishing between displacements that might be linked to volcanic activity and those produced by other causes. One important result in this work is that a new geodetic monitoring system based on two complementary techniques, InSAR and GPS, has been set up on Tenerife island. This the first time that the whole surface of any of the volcanic Canary Islands has been covered with a single network for this purpose. This research has displayed the need for further similar studies in the Canary Islands, at least on the islands which pose a greater risk of volcanic reactivation, such as Lanzarote and La Palma, where InSAR techniques have been used already

    Active Home Literacy Environment: parents' and teachers' expectations of its influence on affective relationships at home, reading performance, and reading motivation in children aged 6 to 8 years

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    Studies highlight the benefits of active Home Literacy Environment on learning and reading habits. This model is based on harnessing family involvement, resources and capabilities to create learning opportunities around reading, engaging in practices related to written language at home. However, it is less common to find applied research with children from the age of six, with older ages and already initiated in reading decoding. The aims are confirming and improving the expectations of families and teachers of a group of children (6–8 years old) regarding the effect of an active Home Literacy Environment program on the improvement of affective relationships between parents and children, reading performance, and children’s reading motivation. The method and procedure followed included carrying out an active Home Literacy Environment program for 18 months with a group of children (aged 6 to 8 years), their families and their teachers, and measures of all variables were collected at four times, using an Ad Hoc instrument designed for families and teachers. The results show that participants had high expectations about the influence of the Home Literacy Environment on the improvement of all variables even before the implementation of the program, improving their expectations about its effects on positive affective relationships at home and on reading achievement after the intervention. In conclusion, we suggest the need to continue investigating the effects of the active Home Literacy Environment program applied to children aged 6 to 8 years, older than those traditionally investigated. As well as their effects on family relationships, reading ability, and reading motivation

    Obesity and the endocannabinoid system: Is there still a future for CB1 antagonists in obesity?

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    The current epidemic of obesity in western countries is being worsened by the lack of effective pharmacotherapies. The apparent success of a central nervous systemacting cannabinoid CB1 receptor antagonist-based treatment for obesity was hampered by the appearance of psychiatric side effects in certain patients. These adverse effects forced its withdrawal from the market. However, the discovery that the main beneficial metabolic effects of cannabinoid CB1 receptor antagonists were derived of its activity in peripheral tissues, including the adipose tissue, opened the possibility of rescuing this type of therapy. This goal might be achieved by differential medicinal chemistry approaches. The present review examines these options that include peripheral-restricted cannabinoid CB1 receptor antagonists, dual ligands and combinatorial therapies using sub-effective doses of CB1 receptor antagonists that might be devoid of side effects.Peer Reviewe
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