El Roble. Autoproducción asistida en asentamiento autogestionado de Xalapa, Veracruz

Ponència presentada a la sessió 8BEl fenómeno de urbanización ocurrido en la mayoría de los países latinoamericanos en las últimas décadas ha elevado el porcentaje de población al doble cambiando radicalmente su distribución poblacional mediante la urbanización masiva de la población rural. En consecuencia, alrededor de un 40% de las áreas urbanas mayores de la región, se alojan en asentamientos precarios; los cuales en algunos países representan el 60% y más del total de la construcción urbana. Por su parte la alternativa que pudiéramos llamar popular o precaria bajo sus distintas modalidades y denominaciones (invasiones, favelas, barrios marginales, asentamientos irregulares) ha sido desde el punto de vista cuantitativo la opción que ha hecho posible el alojamiento de la mayoría de nuevos pobladores urbanos. Debido a estos procesos de migración la ciudad de Xalapa ha crecido con una rápida urbanización no planificada a través de barrios populares o marginales asentados en sus periferias, afectados por altas condiciones de marginalidad, carencia de infraestructura y equipamiento urbano, segregación y una notable exclusión social respecto al resto de la población. Desde el enfoque de autoproducción asistida se aborda la problemática de autoconstrucción espontánea en las periferias de la ciudad a través de dos propuestas arquitectónicas: (Casa Comunitaria y Vivienda Progresiva) de carácter público y privado con el objetivo de mitigar la vulnerabilidad de la autoconstrucción espontánea, generar identidad y arraigo social, fortalecer la cohesión social y ayudar a regenerar parte del tejido de la ciudad que ha sido afectado a causa de la exclusión social de asentamientos periféricos

Validity of a reading comprehension test for portuguese students

The purpose of this work was to collect construct and criterion-related evidence of validity for a reading comprehension test (TCL - Teste de Compreensão da Leitura) with three vertically scaled forms, designed to assess students from second, third and fourth grade. Method: Two studies were conducted. In the fi rst (n = 1,229), a confi rmatory factor analysis was performed to analyse the test dimensionality. In the second (n= 402), concurrent and predictive evidence of validity was analysed using correlations between TCL, other reading tests and academic achievement. Results: Confi rmatory factor analysis results supported a one-factor structure. Correlation coeffi cients with other reading tests were low to moderate and statistically signifi cant. The TCL forms were shown to be good predictors of students’ reading comprehension as assessed by teachers and of the National Exams of Portuguese Language results. Conclusions: Present results provide empirical evidence for the validity of the TCL forms.Validez de un test de comprensión lectora para alumnos portugueses. Antecedentes: el objetivo de este trabajo fue recoger evidencia de validez de constructo y de criterio para un test de comprensión lectora (TCL- Teste de Compreensão da Leitura) con tres versiones escaladas verticalmente para evaluar alumnos portugueses de segundo, tercero y cuarto cursos de Primaria. Método: se efectuaron dos estudios. En el primero (n= 1,229) se analizó la dimensionalidad de la prueba recurriendo al análisis factorial confi rmatorio. En el segundo (n= 402) se proporcionan datos sobre evidencia de validez concurrente y predictiva, analizando las correlaciones entre los resultados en TCL, los resultados en otras pruebas de lectura y los resultados académicos. Resultados: los análisis factoriales confi rmatorios revelaron que el modelo de un factor se ajusta a los datos. Se obtuvieron coefi cientes de correlación bajos a moderados y estadísticamente signifi cativos entre las puntuaciones en el TCL y en otros tests de lectura. Las puntuaciones en TCL predijeron las puntuaciones obtenidas por los alumnos en los exámenes nacionales de lengua portuguesa y en las competencias de comprensión evaluadas por los maestros. Conclusiones: estos resultados proporcionan evidencia empírica para la validez de las versiones de TCL.This research was supported by Fundação para a Ciência e Tecnologia, grant SFRH/BD/39980/2007 and CIEC – Research Centre on Child Studies, UM (FCT R&D 317

A laser system for cooling strontium atoms in a new Rydberg atom-array experiment

Màster Oficial de Ciència i Tecnologia Quàntiques / Quantum Science and Technology, Facultat de Física, Universitat de Barcelona. Curs: 2023-2024. Tutora: Leticia TarruellIn this work we report on the construction of a laser system for laser cooling of strontium atoms. This lays the foundation to a new cold atoms experiment which aims to simulate lattice gauge theories with Rydberg decorated tweezer arrays. The developed laser system uses the 1S0 ↔ 1P1 transition of strontium-88 at 461 nm. We focus on the master laser frequency stabilisation through an active spectroscopic feedback on a vapour cell. Therein, the high vacuum regime has been restored and new strontium has been introduced as part of this thesis project. We explore Doppler-free spectroscopy through saturated absorption, specifically locking the master laser on a modulation transfer spectroscopy signal. In addition, we address the need for specific frequency control in the different cooling stages of the experiment by implementing the use of acousto-optical modulators. Finally, we tackle the required optical power amplification by assembling and characterising one of the slave lasers that will be used to that end, ensuring thereby the suitability of the laser system for its purpose

“From Factory to Pop-Up Bar”

Proyecto en dos fases en el marco de la Dutch Design Week 2017 (DDW) y en colaboración con estudiantes de la Design Academy Eindhoven (DAE). La primera fase consistió en el diseño por parejas de un objeto de vidrio soplado para ser utilizado en un bar, que después se produciría. Se diseñó un vaso para beber GinTonic ahumado, desde la idea inicial y los primeros bocetos hasta los moldes necesarios, la bebida y la experiencia del usuario. La segunda parte consistió en el diseño, en grupos, de un bar efímero que funcionará durante la DDW 2017 en el estudio Atelier NL, utilizándose en él los productos de vidrio anteriormente diseñados. Se crearon varios modelos a escala real del lugar de emplazamiento del bar así como de parte del mobiliario necesario. Ambas partes se presentaron frente a un tribunal compuesto por tres profesores de la HBKSaar y uno de la DAE.Departamento de Química AnalíticaGrado en Ingeniería en Diseño Industrial y Desarrollo de Product

Remot robot control from docker

Currently, we witness a new phase of digitization which is fueled by the development of Internet-connected smart sensors (Internet of Things - IoT). Also, about the processing of large data volumes that they create using Big Data analytics, leveraging the compute resources from the Cloud and Edge-based systems. For data exchange in the IoT world, typically lightweight communication protocols such as Message Queuing Telemetry Transport (MQTT) are used which are based on publisher/subscriber communication pattern where a broker mediates data among interested parties. In order to provide reliable communication, MQTT provides different Quality of Service (QoS) mechanisms. MQTT publishers, subscribers and brokers can be deployed inside containers on virtualized infrastructure to facilitate large-scale virtualized compute frameworks from the cloud for scalable data analytics. However, each docker containers requires a specific amount of resources to provide the required response time. In this thesis, we evaluate the impact of resource sharing due to the virtualized deployment of MQTT components on latency and response time of IoT applications. We deploy a testbed of Arduino and Raspberry Pi devices that host MQTT clients to pull sensor data towards MQTT clients inside the cloud. We also evaluate the impact of different QoS levels at the MQTT protocol on latency. Our results indicate that proper resource allocation and QoS parametrization is important for maintaining low and stable latency.Outgoin

Pro-adrenomedullin, pro-endothelin-1, procalcitonin, C-reactive protein and mortality risk in critically ill children: a prospective study

INTRODUCTION: We tested the hypothesis that higher mid-regional pro-adrenomedullin (MR-proADM), carboxy-terminal pro-endothelin-1 (CT-proET-1), procalcitonin (PCT) and C-reactive protein (CRP) plasma concentrations would be associated with increased prediction of mortality risk scores. METHODS: Prospective observational study set in two pediatric intensive care units (PICUs). Two-hundred-thirty-eight patients were included. MR-proADM, CT-proET-1, PCT and CRP levels were compared between children with PRISM III and PIM 2 > p75 (Group A; n = 33) and the rest (Group B; n = 205). RESULTS: Median (range) MR-proADM levels were 1.39 nmol/L (0.52–12.67) in group A versus 0.54 (0.15–3.85) in group B (P < 0.001). CT-proET-1 levels were 172 pmol/L (27–500) versus 58 (4–447) (P < 0.001). PCT levels were 7.77 ng/mL (0.34–552.00) versus 0.28 (0.02–107.00) (P < 0.001). CRP levels were 6.23 mg/dL (0.08-28.25) versus 1.30 mg/dL (0.00-42.09) (P = 0.210). The area under the ROC curve (AUC) for the differentiation of group A and B was 0.87 (95% CI:0.81–0.821) for MR-proADM, 0.86 (95% CI:0.79–0.92) for CT-proET-1 and 0.84 (95% CI:0.74–0.94) for PCT. A MR-proADM > 0.79 nmol/L had 93% sensitivity and 76% specificity to differentiate groups, whereas a CT-proET-1 > 123 pmol/L had 77% sensitivity and 84% specificity, and a PCT concentration > 2.05 ng/mL had 80% sensitivity and specificity. CONCLUSIONS: In critically ill children, high levels of MR-proADM, CT-proET-1 and PCT were associated with increased prediction of mortality risk scores. MR-proADM, CT-proET-1 and PCT concentrations higher than 0.80 nmol/L, 123 pmol/L and 2 ng/mL, respectively, could be used by clinicians to identify critically ill children at higher prediction of risk death scores

A relaxation technique enhances psychological well-being and immune parameters in elderly people from a nursing home: A randomized controlled study

Background: The aging process involves a decline in immune functioning that renders elderly people more vulnerable to disease. In residential programs for the aged, it is vital to diminish their risk of disease, promote their independence, and augment their psychological well-being and quality of life. Methods: We performed a randomized controlled study, evaluating the ability of a relaxation technique based on Benson’s relaxation response to enhance psychological well-being and modulate the immune parameters of elderly people living in a geriatric residence when compared to a waitlist control group. The study included a 2-week intervention period and a 3-month follow-up period. The main outcome variables were psychological well-being and quality of life, biomedical variables, immune changes from the pre-treatment to post-treatment and follow-up periods. Results: Our findings reveal significant differences between the experimental and control groups in CD19, CD71, CD97, CD134, and CD137 lymphocyte subpopulations at the end of treatment. Furthermore, there was a decrease in negative affect, psychological discomfort, and symptom perception in the treatment group, which increased participants’ quality of life scores at the three-month follow-up. Conclusions: This study represents a first approach to the application of a passive relaxation technique in residential programs for the elderly. The method appears to be effective in enhancing psychological well-being and modulating immune activity in a group of elderly people. This relaxation technique could be considered an option for achieving health benefits with a low cost for residential programs, but further studies using this technique in larger samples of older people are needed to confirm the trends observed in the present study. Trial registration: International Standard Randomised Controlled Trial Number Register ISRCTN85410212

Development of a word reading test: identifying students at-risk for reading problems

The aim of this study was twofold. In Study 1, we described the development of four forms of a test of word read- ing (TLP – Teste de Leitura de Palavras) for elementary school children (grades 1 to 4), using the Rasch model. An initial pool of 142 words was selected and tested on 905 Portuguese students. Rasch analyses allowed the devel- opment of a shorter version of the test for each grade with adjusted values concerning reliability coefficients and item local independence. In Study 2 (n = 325), the classification accuracy of the TLP to identify at-risk students for reading problems was examined based on several indices. Results indicated that each test form of the TLP pre- sented overall satisfactory classification accuracy in identifying at-risk readers with a criterion of 0.80 to set the sensitivity levels.CiPsi - Psychology Research Centre, Uminho (UID/PSI/ 01662/2013), PortugalCIEC – Research Centre on Child Studies, IE, UMinho (FCT R&D unit 317), PortugalThis study was conducted at Psychology Research Centre (UID/PSI/ 01662/2013), University of Minho, and supported by the Portuguese Foundation for Science and Technology (FCT) and the Portuguese Ministry of Science, Technology and Higher Education through national funds and, when applicable, co-financed by the European Regional Development Fund (FEDER) through COMPETE2020 under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007653) and by Grant FCOMP-01-0124- FEDER-010733 from FCT and FEDER through the European program COMPETE (Operational Programme for Competitiveness Factors) under the National Strategic Reference Framework (QREN). The first author is also supported by grant from FCT (Grant SFRH/BD/78546/2011).info:eu-repo/semantics/publishedVersio