Conectar aicle y educación steam en centros bilingües, un paso adelante

ABSTRACT We live in an increasingly global society in which the influence of new technologies is becoming more and more significant. For this reason, there is a need to provide the new generations with the tools, skills, and knowledge to be able to manage in it. As a result of this, there is an opportunity to investigate more about these factors and how influence them in bilingual learning since it is one of the key aspects of this globalization process. This is the main goal of this research proposal, to investigate ICT in relation to bilingualism. All this, following a STEAM education, since this interdisciplinarity will help to achieve a less compartmentalized and meaningful learning. For this purpose, the proposal has been conducted in a public school with students in the 2nd Year of Primary Education in which they had to create their own "musical plant". In this way, and with the help of Makey boards, the students learned Science through the development of their own musical creation.RESUMEN Vivimos en una sociedad cada vez más globalizada en la que la influencia de las Nuevas Tecnologías es cada vez más notoria. Por ese motivo, se presenta la necesidad de dotar a las nuevas generaciones de herramientas, habilidades y conocimientos para que sepan desenvolverse en ella. A raíz de esto, se presenta la oportunidad de investigar más sobre estos factores y cómo influyen en el aprendizaje bilingüe, ya que es uno de los aspectos claves de este proceso de globalización. Este es el principal objetivo de investigación de esta propuesta, investigar sobre las TICs en relación con el bilingüismo. Todo ello, siguiendo una educación STEAM, ya que esa interdisciplinariedad ayudará a conseguir un aprendizaje menos compartimentado, así como significativo. Para ello, se ha realizado la propuesta en un colegio público con alumnado de 2º de Educación Primaria, en el que ellos y ellas tenían que crear su propia "planta musical". 3 De este modo, y con la ayuda de unas placas Makey, el alumnado aprendía Science mediante el desarrollo de su propia creación musical.Grado en Educación Primari

Del signo a la palabra: uso del bimodal en edades tempranas en un ambiente no bilingüe

This project aims to analyse how bimodal language is applied in English classes as a means of facilitating communication. Through its use in the classroom, the aim is to observe the influence it has on pupils' communication and understanding. To this end, a proposal has been planned for a group of four-year-olds, through which these pupils are exposed to its implementation in the classroom. This is done by means of several techniques such as the use of signed songs or the reinforcement of the language through signs. Accordingly, the purpose is to demonstrate the impact of this application of bimodal language on the learning of a foreign language, as well as to introduce the pupils to the learning of American Sign Language.El presente proyecto pretende indagar sobre la aplicación de la lengua bimodal durante las clases de inglés como medio facilitador de la comunicación. A través de su uso en el aula, se pretende observar la influencia que este tiene en la comunicación y la comprensión del alumnado. Para ello, se ha planificado una propuesta destinada a un grupo de cuatro años, mediante la cual se expone a este alumnado a su uso en el aula. Esto se realiza por medio de distintas técnicas tales como la utilización de canciones signadas o el refuerzo de la lengua a través de los signos. De acuerdo con esto, se pretende demostrar la influencia que tiene este uso de la lengua bimodal en el aprendizaje de una lengua extranjera, así como introducir al alumnado en el aprendizaje de la Lengua de Signos Americana.Grado en Educación Infanti

La exposición de la cavidad oral a vinos de diferente composición no volátil cambia la composición de la saliva y afecta a la liberación intraoral de aroma en condiciones in vivo

Este libro recoge el amplio y significativo elenco de estudios recientemente realizados por los grupos de investigación de la red GIENOL (Grupos de investigación enológica).La liberación intraoral del aroma puede estar relacionada con la persistencia del aroma de los vinos, una propiedad importante en su definición de calidad. Para comprobar si esta capacidad se ve afectada por los cambios que se producen en la composición de la saliva tras la exposición de la cavidad oral al vino, en este trabajo se han empleado condiciones in vivo para evaluar mediante la técnica de intra oral HS‐SPME la cantidad de aroma liberado en la cavidad oral de tres individuos tras la administración de vinos aromatizados con seis compuestos odorantes y diferente composición no volátil (blanco, tinto joven y tinto crianza). A su vez, se ha comprobado su relación con los cambios que se producen en la composición de la saliva (flujo, pH, proteínas y polifenoles). Los resultados señalan diferencias interindividuales en la cantidad del aroma liberado que podrían estar relacionadas con las diferencias en el contenido de proteínas totales y la disminución en el pH de la saliva que son más importantes en el caso de la exposición a los vinos tinto joven y blanco. Estos resultados indican la importancia de considerar tanto los factores composicionales del vino como los fisiológicos (saliva) para explicar la persistencia y percepción prolongada del aroma tras el consumo.Los autores agradecen al MINECO la financiación del proyecto AGL2012‐40172‐C02‐01.Peer Reviewe

The importance of organizational commitment to knowledge management

In recent years, Knowledge Management (KM) has assumed great importance in the literature on business and management. However, we still have so little understanding of the human issues in KM processes. Thus, this research aims to contribute to analysing the importance of Organizational Commitment (OC) to KM. First, we used the Cardoso (2003) Knowledge Management Questionnaire (QGC) that embraces all organizational activities around knowledge processes and distinguishes four dimensions of KM. Secondly we applied the Quijano, Masip, Navarro and Aubert (1997) questionnaire (ASH-ICI) that distinguishes two types of commitment (personal and instrumental) into four dimensions. These two questionnaires were applied with 300 employees in the Portuguese industrial ceramics sector. Through multiple regression analysis we found that levels of organizational commitment are statistically important to KM dimensions. Furthermore, our analysis indicates that personal commitment is more important than need commitment. These results are discussed and Organizational Behaviour specialists and Work and Organizational psychologists are challenged to assume more responsibility and an active role in KM studies and practices and to explore human issues in this field.Nos últimos anos, a Gestão do Conhecimento (GC) tem assumido uma grande relevância na literatura da gestão e dos negócios. Contudo, persiste a escassa compreensão dos aspectos humanos nos processos de GC. Deste modo, esta investigação procura contribuir para a análise da importância do Comprometimento Organizacional (CO) para a GC. Em primeiro lugar, utilizámos o Questionário de Gestão do Conhecimento (QGC) de Cardoso (2003) que compreende em si todas as actividades organizacionais constituintes dos processos do conhecimento e que distingue quatro dimensões da GC. Em segundo lugar, aplicámos o questionário (ASH-ICI) de Quijano, Masip, Navarro e Aubert (1997) que distingue dois tipos de comprometimento (pessoal e instrumental) em quatro dimensões. Estes dois questionários foram aplicados a 300 colaboradores do sector industrial cerâmico português. Através da análise de regressão múltipla, verificámos que os níveis de comprometimento organizacional são estatisticamente importantes para as dimensões da GC. Para além disso, a nossa análise indica que o comprometimento pessoal é mais importante do que o comprometimento de necessidade. Estes resultados são discutidos e os especialistas do Comportamento Organizacional e psicólogos do Trabalho e das Organizações são desafiados a assumir uma maior responsabilidade e um papel mais activo nos estudos e práticas da GC, bem como a explorar os aspectos humanos neste campo

Plants with potential use on obesity and its complications

Obesity is the most prevalent nutritional disease and a growing public health problem worldwide. This disease is a causal component of the metabolic syndrome related with abnormalities, including hyperglycemia, dyslipidemia, hypertension, inflammation, among others. There are anti-obesity drugs, affecting the fundamental processes of the weight regulation; however they have shown serious side effects, which outweigh their beneficial effects. Most recent studies on the treatment of obesity and its complications have focused on the potential role of different plants preparation that can exert a positive effect on the mechanisms involved in this pathology. For instance, anti-obesity effects of green tea and its isolated active principles have been reported in both in vitro (cell cultures) and in vivo (animal models) that possess healthy effects, decreasing adipose tissue through reduction of adipocytes differentiation and proliferation. A positive effect in lipid profile, and lipid and carbohydrates metabolisms were demonstrated as well. In addition, anti-inflammatory and antioxidant activities were studied. However, the consumption of green tea and its products is not that common in Western countries, where other plants with similar bioactivity predominate; nevertheless, the effect extension has not been analyzed in depth, despite of their potential as alternative treatment for obesity. In this review the anti-obesity potential and reported mechanisms of action of diverse plants such as: Camellia sinensis, Hibiscus sabdariffa, Hypericum perforatum, Persea americana, Phaseolus vulgaris, Capsicum annuum, Rosmarinus officinalis, Ilex paraguariensis, Citrus paradisi, Citrus limon, Punica granatum, Aloe vera, Taraxacum officinale and Arachis hypogaea is summarized. We consider the potential of these plants as natural alternative treatments of some metabolic alterations associated with obesity

A cost-effective microfluidic device for determination of biodiesel content in diesel blends

The increasing production and extensive use of biodiesel in the latest years call for the development of fast and cost-effective procedures for point-of-care analysis. One of the main quality parameters is the biodiesel content in diesel blends, which needs to conform to regional legislations. In this work, a microfluidic device exploiting chemical derivatization of alkyl esters and detection by smartphone-based digital-image colorimetry was developed. It was designed to ensure proper experimental conditions for chemical derivatization, including re- agent release, and photometric measurements. Analytes reacted with alkaline hydroxylamine yielding the cor- responding alkyl hydroxamates, measured as colored Fe(III) complexes. Analytical response was based on the measurement of the G (green) channel from RGB color system. By taking methyl linoleate as a model compound, a linear response was obtained from 0.1% to 0.6%(v/v) (Analytical signal = 69.6 +2.1 C, r = 0.999), coefficient of variation (n = 10) of 4.0% and limit of detection (99.7% confidence) of 0.04%(v/v). Procedure consumes 1.2 µL of sample, 230 µg of hydroxylamine, 480 µg of NaOH, 14 µg of Fe(III) and equivalent to 1.2 µL of 69%(v/v) HNO3. Accurate results were achieved in relation to the MIR reference method, with agreement at the 95% confidence levelThe authors gratefully acknowledge the financial support from Fundaç˜ao de Amparo `a Pesquisa do Estado de S˜ao Paulo FAPESP (proc. 2021/12242–5 and 2018/07687–5). and the support from the Spanish “Ministerio de Economía y Competitividad” (Project PID2019–103938RB- I00) and Junta de Andalucía (Projects B-FQM-243-UGR18 and P18-RT- 2961)

Chemical composition of biomass generated in the guava tree pruning

Psidium guajava L. (Myrtaceae) is a native plant of Central America and is now widely cultivated in many tropical regions of the world for the fruit production. In Mexico, in the guava orchards common practices to control fruit production are: water stress, defoliation and pruning. In this study, we report the chemical composition of the biomass (branches and leaves) generated in the pruning practices. The results ranged as follows: pH (4.98-5.88), soda solubility (39.01-70.49 %), ash (1.87-8.20 %); potassium and calcium were the major inorganic elements in ash. No heavy metals were detected in the studied samples; total solubility (15.21-46.60 %), Runkel lignin (17.77-35.26 %), holocellulose (26.56 -69.49 %), α-cellulose (15.53-35.36 %), hemicelluloses (11.02-34.12 %), tannins in aqueous extracts (3.81-9.06 %), and tannins in ethanolic extracts (3.42-15.24 %)

Polyphenolic Profile, Sugar Consumption and Organic Acids Generation along Fermentation of Infusions from Guava (Pisidium guajava) by the Kombucha Consortium

The kombucha beverage is typically prepared from black tea, sweetened with sucrose, inoculated with previously fermented liquid broth and/or tea fungus pellicle, and incubated. Alternative sources have been used for kombucha beverages. Guava leaves have been used for long time as traditional medicine. It is found in many commercially available botanical supplements in form of decoction, milled and used as comprises. They are rich in polyphenolic compounds. Several changes are produced during fermentation of the beverages. The main objective of the present work is to characterize fermentation process of guava leaves infusions by kombucha and studying possible chemical changes in their polyphenolic profile. Infusions from guava leaves were prepared and fermented by the kombucha consortium. The pH, titrable acidity, polyphenolic compounds, sugar consumption, organic acid along the fermentation was made by UPLC-ESI-MS. Kombucha from Camellia sinensis (CS) was made as a control. Higher rate of sucrose consumption was observed for Kombucha made with CS, also, higher production of organic acids (acetic and succinic acid) was observed too. Both behaviors were related to the content of glucose. The flavan-3-ols were diminishing along the fermentation time, with the exception of epigallocatechin in Camellia sinensis, Flavan-3-ol content in Guava leaves was low. Higher content of dicaffeoyl quinnic acid was observed for both systems in special for CS, falling after a maximum peak; minor constituents of hydroxycinnamic acids were stable along the fermentation for both systems

The PDZ-adaptor protein syntenin-1 regulates HIV-1 entry

Syntenin-1 is a cytosolic adaptor protein involved in several cellular processes requiring polarization. Human immunodeficiency virus type 1 (HIV-1) attachment to target CD4(+) T-cells induces polarization of the viral receptor and coreceptor, CD4/CXCR4, and cellular structures toward the virus contact area, and triggers local actin polymerization and phosphatidylinositol 4,5-bisphosphate (PIP(2)) production, which are needed for successful HIV infection. We show that syntenin-1 is recruited to the plasma membrane during HIV-1 attachment and associates with CD4, the main HIV-1 receptor. Syntenin-1 overexpression inhibits HIV-1 production and HIV-mediated cell fusion, while syntenin depletion specifically increases HIV-1 entry. Down-regulation of syntenin-1 expression reduces F-actin polymerization in response to HIV-1. Moreover, HIV-induced PIP(2) accumulation is increased in syntenin-1–depleted cells. Once the virus has entered the target cell, syntenin-1 polarization toward the viral nucleocapsid is lost, suggesting a spatiotemporal regulatory role of syntenin-1 in actin remodeling, PIP(2) production, and the dynamics of HIV-1 entry