118 research outputs found

    Plan de Acción Tutorial en la Escuela Universitaria de Informática de la Universidad Politécnica de Madrid

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    Aquest article presenta un model d’acció tutorial desenvolupat sobre estratègies d’acompanyament a l’estudiant basades en “coaching” i intel•ligència emocional, i un model experimental de tutories per parells de tutors en els que es celebren sessions conjuntes per tractar problemes comuns i compartir experiències dels tutelats. Els resultats obtinguts d’integració i eficiència en el procés d’ensenyança aprenentatge dels tutelats en aquest model inviten a estendre l’experiència a un grup de tutors major per després generalitzar-lo.This paper presents a tutorial action model oriented to help students through both the development of some new strategies based on coaching and “emotional intelligence”, and the use of an experimental model of tutoring by pairs of tutors. Joint meetings of the students of both tutors are conducted, to deal with common problems and share students’ experiences. The results obtained from this integration and the efficiency in the learning process of the tutored students in this model, invite us to extend the experience to a larger group of tutors, and then try to generalize it.Este artículo presenta un modelo de acción tutorial desarrollado sobre estrategias de acompañamiento al estudiante basadas en “coaching” e inteligencia emocional, y un modelo experimental de tutorías por pares de tutores en los que se celebran sesiones conjuntas para tratar problemas comunes y compartir experiencias de los tutelados. Los resultados obtenidos de integración y eficiencia en el proceso de enseñanza aprendizaje de los tutelados en este modelo invitan a extender la experiencia a un grupo de tutores mayor para después generalizarlo

    Coronary and carotid artery dysfunction and KV7 overexpression in a mouse model of Hutchinson-Gilford progeria syndrome.

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    Hutchinson-Gilford progeria syndrome (HGPS) is an extremely rare genetic disease caused by expression of progerin, a lamin A variant that is also expressed at low levels in non-HGPS individuals. Although HGPS patients die predominantly from myocardial infarction and stroke, the mechanisms that provoke pathological alterations in the coronary and cerebral arteries in HGPS remain ill defined. Here, we assessed vascular function in the coronary arteries (CorAs) and carotid arteries (CarAs) of progerin-expressing LmnaG609G/G609G mice (G609G), both in resting conditions and after hypoxic stimulus. Wire myography, pharmacological screening, and gene expression studies demonstrated vascular atony and stenosis, as well as other functional alterations in progeroid CorAs and CarAs and aorta. These defects were associated with loss of vascular smooth muscle cells and overexpression of the KV7 family of voltage-dependent potassium channels. Compared with wild-type controls, G609G mice showed reduced median survival upon chronic isoproterenol exposure, a baseline state of chronic cardiac hypoxia characterized by overexpression of hypoxia-inducible factor 1α and 3α genes, and increased cardiac vascularization. Our results shed light on the mechanisms underlying progerin-induced coronary and carotid artery disease and identify KV7 channels as a candidate target for the treatment of HGPS.Work supported by Ministerio de Ciencia e Innovación (MCIN) and Agencia Estatal de Investigación (AEI) (MCIN/AEI/https:// doi. org/ 10. 13039/ 50110 00110 33 grants SAF2016-79490-R and PID2019-108489RB-I00), with cofunding from Fondo Social Europeo (“El FSE invierte en tu futuro”), and a donation from Asociación Progeria Alexandra Peraut. Microscopy was conducted at the Microscopy & Dynamic Imaging Unit, CNIC, ICTS-ReDib, co-funded by MCIN/AEI/https:// doi. org/ 10. 13039/ 50110 00110 33. R.M.N was supported by the Ministerio de Educación, Cultura y Deporte (pre-doctoral contract FPU16/05027), and I.B. is supported by the Comunidad Autónoma de Madrid (grants 2017- T1/BMD-5247 and 2021-5A/BMD-20944), and the Ramón y Cajal contract (RYC2021-033805-I) funded by MCIN/ AEI/10.13039/501100011033 and the European Union “Next- GenerationEU”/PRTR. The CNIC is supported by the MCIN, the Instituto de Salud Carlos III, the Pro-CNIC Foundation, and is a Severo Ochoa Center of Excellence (grant number CEX2020-001041-S funded by MCIN/AEI/https:// doi. org/ 10. 13039/ 50110 00110 33).N

    New compound sets identified from high throughput phenotypic screening against three kinetoplastid parasites:an open resource

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    Using whole-cell phenotypic assays, the GlaxoSmithKline high-throughput screening (HTS) diversity set of 1.8 million compounds was screened against the three kinetoplastids most relevant to human disease, i.e. Leishmania donovani, Trypanosoma cruzi and Trypanosoma brucei. Secondary confirmatory and orthogonal intracellular anti-parasiticidal assays were conducted, and the potential for non-specific cytotoxicity determined. Hit compounds were chemically clustered and triaged for desirable physicochemical properties. The hypothetical biological target space covered by these diversity sets was investigated through bioinformatics methodologies. Consequently, three anti-kinetoplastid chemical boxes of ~200 compounds each were assembled. Functional analyses of these compounds suggest a wide array of potential modes of action against kinetoplastid kinases, proteases and cytochromes as well as potential host–pathogen targets. This is the first published parallel high throughput screening of a pharma compound collection against kinetoplastids. The compound sets are provided as an open resource for future lead discovery programs, and to address important research questions.The support and funding of Tres Cantos Open Lab Foundation is gratefully acknowledgedPeer reviewe

    Plan de Acción Tutorial en la Escuela Universitaria de Informática de la Universidad Politécnica de Madrid

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    Aquest article presenta un model d’acció tutorial desenvolupat sobre estratègies d’acompanyament a l’estudiant basades en “coaching” i intel•ligència emocional, i un model experimental de tutories per parells de tutors en els que es celebren sessions conjuntes per tractar problemes comuns i compartir experiències dels tutelats. Els resultats obtinguts d’integració i eficiència en el procés d’ensenyança aprenentatge dels tutelats en aquest model inviten a estendre l’experiència a un grup de tutors major per després generalitzar-lo.This paper presents a tutorial action model oriented to help students through both the development of some new strategies based on coaching and “emotional intelligence”, and the use of an experimental model of tutoring by pairs of tutors. Joint meetings of the students of both tutors are conducted, to deal with common problems and share students’ experiences. The results obtained from this integration and the efficiency in the learning process of the tutored students in this model, invite us to extend the experience to a larger group of tutors, and then try to generalize it.Este artículo presenta un modelo de acción tutorial desarrollado sobre estrategias de acompañamiento al estudiante basadas en “coaching” e inteligencia emocional, y un modelo experimental de tutorías por pares de tutores en los que se celebran sesiones conjuntas para tratar problemas comunes y compartir experiencias de los tutelados. Los resultados obtenidos de integración y eficiencia en el proceso de enseñanza aprendizaje de los tutelados en este modelo invitan a extender la experiencia a un grupo de tutores mayor para después generalizarlo

    Performance of Scheduling Policies in Adversarial Networks with Non-synchronized Clocks

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    In this paper we generalize the Continuous Adversarial Queuing Theory (CAQT) model (Blesa et al. in MFCS, Lecture Notes in Computer Science, vol. 3618, pp. 144–155, 2005) by considering the possibility that the router clocks in the network are not synchronized. We name the new model Non Synchronized CAQT (NSCAQT). Clearly, this new extension to the model only affects those scheduling policies that use some form of timing. In a first approach we consider the case in which although not synchronized, all clocks run at the same speed, maintaining constant differences. In this case we show that all universally stable policies in CAQT that use the injection time and the remaining path to schedule packets remain universally stable. These policies include, for instance, Shortest in System (SIS) and Longest in System (LIS). Then, we study the case in which clock differences can vary over time, but the maximum difference is bounded. In this model we show the universal stability of two families of policies related to SIS and LIS respectively (the priority of a packet in these policies depends on the arrival time and a function of the path traversed). The bounds we obtain in this case depend on the maximum difference between clocks. This is a necessary requirement, since we also show that LIS is not universally stable in systems without bounded clock difference. We then present a new policy that we call Longest in Queues (LIQ), which gives priority to the packet that has been waiting the longest in edge queues. This policy is universally stable and, if clocks maintain constant differences, the bounds we prove do not depend on them. To finish, we provide with simulation results that compare the behavior of some of these policies in a network with stochastic injection of packets

    Programming Skeletal Muscle Metabolic Flexibility in Offspring of Male Rats in Response to Maternal Consumption of Slow Digesting Carbohydrates during Pregnancy

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    Skeletal muscle plays a relevant role in metabolic flexibility and fuel usage and the associated muscle metabolic inflexibility due to high-fat diets contributing to obesity and type 2 diabetes. Previous research from our group indicates that a high-fat and rapid-digesting carbohydrate diet during pregnancy promotes an excessive adipogenesis and also increases the risk of non-alcoholic fatty liver disease in the offspring. This effect can be counteracted by diets containing carbohydrates with similar glycemic load but lower digestion rates. To address the role of the skeletal muscle in these experimental settings, pregnant rats were fed high-fat diets containing carbohydrates with similar glycemic load but different digestion rates, a high fat containing rapid-digesting carbohydrates diet (HF/RD diet) or a high fat containing slow-digesting carbohydrates diet (HF/SD diet). After weaning, male offspring were fed a standard diet for 3 weeks (weaning) or 10 weeks (adolescence) and the impact of the maternal HF/RD and HF/SD diets on the metabolism, signaling pathways and muscle transcriptome was analyzed. The HF/SD offspring displayed better muscle features compared with the HF/RD group, showing a higher muscle mass, myosin content and differentiation markers that translated into a greater grip strength. In the HF/SD group, metabolic changes such as a higher expression of fatty acids (FAT/CD36) and glucose (GLUT4) transporters, an enhanced glycogen content, as well as changes in regulatory enzymes such as muscle pyruvate kinase and pyruvate dehydrogenase kinase 4 were found, supporting an increased muscle metabolic flexibility and improved muscle performance. The analysis of signaling pathways was consistent with a better insulin sensitivity in the muscle of the HF/SD group.This research was funded by European Union’s Seventh Framework Programme (FP7/2007–2013): project Early Nutrition, under grant agreement no. 289346

    Does Being a Scout Affect Confinement Due to COVID-19? A Comparative Exploratory Descriptive Study with Spanish Adolescents

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    The pandemic caused by SARS-CoV-2 has caused great social changes, some of them not yet described. This article tries to give an answer to how it has impacted Spanish adolescents in the field of domestic activity and how they use their free time and if there are differences between the normal population and people who have been involved in non-formal education programs, such as Scouts. In addition, young adolescents who actively participate as Scouts have been compared and, if so, belonging to a group has changed their behavior pattern. The sample has been obtained in a probabilistic way representing all the autonomous communities of Spain with a total of 1280 participants. To obtain the data, an online questionnaire was prepared with which qualitative analyzes were subsequently carried out. The results show statistically significant differences in behavior, both in domestic responsibilities and in what they do with their free time. Young Scouts display different behaviors than their non-Scout peers
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