43 research outputs found

    Student teachers' positioning with regard to their key learning experiences in the first practicum

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    This exploratory study consists of a description of which kind of key learning experiences student teachers' have to face during their first practicum in schools and how they positioned their selves in these situations. Twenty-seven second-year student teachers were interviewed. Five key learning experiences were identified: classroom instruction, socialization, conflicting between pre-existing conceptions and the reality, classroom management, and diversity. Two kinds of positions were adopted by them when they faced these experiences: I as a student and I as a teacher. They posi-tioned as students when they focused their attention on observing educational practices and fully and unreservedly accepting their mentors' strategies and they positioned as teachers when they acted and made decisions with autonomy and applied the theoretical knowledge acquired. The difficulties students face in positioning themselves as teachers were found to relate to all the key learning ex-periences except for those connected to do with classroom instruction.Este estudio exploratorio describe el tipo de experiencias clave de aprendizaje a las que se en-frentan los estudiantes docentes durante su primera práctica en las escuelas y cómo se posiciona-ron en estas situaciones. Veintisiete estudiantes de segundo año fueron entrevistados. Se identifi-caron cinco experiencias clave de aprendizaje: instrucción en el aula, socialización, conflicto en-tre las concepciones preexistentes y la realidad, gestión del aula e diversidad. Adoptaron dos tipos de posiciones ante las experiencias: yo como estudiante y yo como maestro/a. Se posicionaron como estudiantes cuando enfocaron su atención en observar las prácticas educativas, aceptando sin reservas las estrategias de sus mentores, y se posicionaron como maestros cuando actuaron y tomaron decisiones con autonomía y aplicaron el conocimiento teórico adquirido en los contextos universitarios. Los resultados muestran que las dificultades que enfrentan los estudiantes para po-sicionarse como maestros se relacionan con todas las experiencias clave de aprendizaje, excepto las relacionadas con la instrucción en el aula

    Traffic restrictions during COVID-19 lockdown improve air quality and reduce metal biodeposition in tree leaves

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    The coronavirus disease (COVID-19) has had a great global impact on human health, the life of people, and economies all over the world. However, in general, COVID-19´s effect on air quality has been positive due to the restrictions on social and economic activity. This study aimed to assess the impact on air quality and metal deposition of actions taken to reduce mobility in 2020 in two different urban locations. For this purpose, we analysed air pollution (NO2, NO, NOx, SO2, CO, PM10, O3) and metal accumulation in leaves of Tilia cordata collected from April to September 2020 in two cities in northern Spain (Pamplona-PA and San Sebastián-SS). We compared their values with data from the previous year (2019) (in which there were no mobility restrictions) obtained under an identical experimental design. We found that metal accumulation was mostly lower during 2020 (compared with 2019), and lockdown caused significant reductions in urban air pollution. Nitrogen oxides decreased by 33%−44%, CO by 24%−38%, and PM10 by 16%−24%. The contents of traffic-related metals were significantly reduced in both studied cities. More specifically, significant decreases in metals related to tyre and brake wear (Zn, Fe, and Cu) and road dust resuspension (Al, Ti, Fe, Mn, and Ca) were observed. With these results, we conclude that the main reason for the improvement in urban air pollutants and metals was the reduction in the use of cars due to COVID-19 lockdown. In addition, we offer some evidence indicating the suitability of T. cordata leaves as a tool for biomonitoring metal accumulation. This information is relevant for future use by the scientific community and policy makers to implement measures to reduce traffic air pollution in urban areas and to improve environmental and human health.This research was funded by the UPV/EHU-GV IT-1018-16 program (Basque Government)

    Life after harvest: circadian regulation in photosynthetic pigments of rocket leaves during supermarket storage affects the nutritional quality

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    Vegetables, once harvested and stored on supermarket shelves, continue to perform biochemical adjustments due to their modular nature and their ability to retain physiological autonomy. They can live after being harvested. In particular, the content of some essential nutraceuticals, such as carotenoids, can be altered in response to environmental or internal stimuli. Therefore, in the present study, we wondered whether endogenous rhythms continue to operate in commercial vegetables and if so, whether vegetable nutritional quality could be altered by such cycles. Our experimental model consisted of rocket leaves entrained under light/darkness cycles of 12/12 h over 3 days, and then we examined free-run oscillations for 2 days under continuous light or continuous darkness, which led to chlorophyll and carotenoid oscillations in both constant conditions. Given the importance of preserving food quality, the existence of such internal rhythms during continuous conditions may open new research perspective in nutrition science. However, while chromatographic techniques employed to determine pigment composition are accurate, they are also time-consuming and expensive. Here we propose for the first time an alternative method to estimate pigment content and the nutritional quality by the use of non-destructive and in situ optical techniques. These results are promising for nutritional quality assessments.This work was funded by the following research grants: UPV/EHU-GV IT-1018-16 (from the Basque Government) and CTM2014-53902-C2-2-P, CGL2017-84723-P (IBERYCA) and PGC2018-093824-B-C44 (from the Spanish Ministry of Economy and Competitiveness, MINECO, and the ERDF). RE received a IJCI-2014-21452 Juan de la Cierva incorporation contract. This research was also supported by the Basque Government through the BERC 2018-2021 program, and by the Spanish Ministry of Science, Innovation and Universities through the BC3 María de Maeztu excellence accreditation (MDM-2017-0714)

    El mòdul genèric del màster de secundària (MUFP): confluències i reptes de futur.

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    Durant el curs 2022-2023 s’ha conformat un grup de treball dins del Programa de millora del Màster de Formació del Professorat de Secundària, Batxillerat, Formació Professional i Escoles Oficials d’idiomes (MUFP) en el que col·laboren tots els màsters de formació del professorat de secundària de les diferents universitats catalanes. El grup de treball és un grup promotor amb una persona representant de cada una de les universitats inicials que és representant o coordinadora del mòdul genèric de la seva universitat (UB, UAB, UOC-UPF, UPC, UdG) i una persona coordinadora del grup. Aquest programa va néixer amb la finalitat de coordinar totes aquelles accions que s’estan duent a terme, o es poden iniciar, en les diferents universitats catalanes que imparteixen aquest màster i que afavoreixen la millora de la formació en l’etapa de secundària. El sistema educatiu avança si es treballa de manera col·laborativa entre tots els agents implicats. Les accions realitzades per aconseguir els objectius marcats pel grup han consistit en fer un primer retrat del mòdul genèric tal i com s’està executant en les diferents universitats, pensant que aquest retrat pot ajudar a crear orientacions que facilitin la millora general d’aquest mòdul en els diferents contextos. S’han creat una sèrie de documents que recullen les diferents experiències en les 11 universitats i s’han realitzat unes jornades per tal de compartir experiències i valorar vies de millora del mòdul genèric.Programa de millora del Màster de Formació del Professorat de Secundària, Batxillerat, Formació Professional i Escoles Oficials d’idiomes (PmMUFPS)

    Foliar heavy metals and stable isotope (δ13C, δ15N) profiles as reliable urban pollution biomonitoring tools

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    Anthropogenic heavy metal pollution is an important health issue in urban areas, and therefore rapid and inexpensive monitoring in time and space is desirable. This study aimed (i) to assess the suitability of Tilia cordata leaves as a valuable heavy metal bioindicator, including seasonal changes in concentrations and (ii) to evaluate the use of leaf carbon and nitrogen isotope composition (δ13C and δ15N) as novel indicators of urban heavy metal pollution. Leaves were collected from three different pollution intensity locations (Bilbao, Vitoria, and Muskiz) in the Basque Country (northern Spain). Analysis of leaf heavy metals related to traffic emissions and δ13C and δ15N determinations were carried out during July-October 2018. Leaf samples from Bilbao, the most populated and traffic-intense location, showed the highest concentration of heavy metals (mainly from polluted air). Additionally, the two urban areas, Bilbao and Vitoria, showed stronger correlation between these heavy metals, indicating a traffic-related source of emissions. The source of contamination (soil or air) in relation to elements and optimal sampling time is discussed herein. On the other hand, Pearson correlation analysis revealed significant trends between leaf δ13C and δ15N and the studied heavy metals, especially Pb, Cr and Cd, supporting the hypothesis of δ13C and δ15N as tools to distinguish locations according to their heavy metal pollution levels. To our knowledge, this is the first time that δ13C and δ15N have been used as monitoring tools in heavy metal pollution and consequently more research is still needed to calibrate this tool through extensive vegetation screening.This research was supported by the Spanish Government [AGL 2015-64481-C2-1-R] and the Basque Government [UPV/EHU-GV IT-1018-16]. RE received a Juan de la Cierva incorporation contract IJCI-2014-21452

    Revisión bibliográfica del proyecto "en mi casa" de la junta de Castilla y León

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    Introduction: the increase in life expectancy and the number of people over 65 years of age implies a change in sociodemographic patterns, which is why health services are evolving, the “In my house” project being a great example. The objective of this work is to investigate and investigate the “In my house” project, as well as determine the role of nursing and the scientific basis of said project. Material and methods: of the 147 articles found in metasearch engines such as Tripdatabase or secondary information sources such as Pubmed, 12 were selected, in addition to the use of other scientific search engines to complete the research. Results: Around 90% of the elderly state their desire to reside in their homes during the fullness of their lives and 4 out of 5 older people report that home care has a more structured support network than residential care. 14% of the elderly living alone report family abandonment. In 2031, 33.2% of the elderly will live alone at home. Discussion: due to the loss of family contact, as well as decision-making and changes in the lifestyle of the elderly living in residences, the project “In my house”emerges, which isinspired and followsthefoundations of the Nordic model Housing, which aims to eradicate those negative items mentioned above, favoring the individuality, autonomy and family intimacy of each of these elderly people. Conclusions: both the “In my house” and “At home in my house” project carry out a series of activities and aids to promote independence whether they are institutionalized or live in their own home.Introducción: el aumento de la esperanza de vida y del número de personas mayores de 65 años, suponen un cambio en los patrones sociodemográficos, por ello los servicios sanitarios están evolucionando, siendo un gran ejemplo el proyecto “En mi casa”. El objetivo de este trabajo consiste en indagar e investigar el proyecto “En mi casa”, así como determinar el papel de enfermería y las bases científicas de dicho proyecto. Material y métodos: de los 147 artículos encontrados en metabuscadores como Tripdatabase o fuentes de información secundaria como Pubmed, 12 fueron los seleccionados, además de la utilización de otros buscadores científicos para completar la investigación. Resultados: en torno el 90% de los ancianos manifiesta su deseo de residir en  sus domicilios durante la plenitud desu viday 4 decada 5 mayoresrefieren que la atención domiciliaria posee una red de apoyo más estructurada que la atención residencial. El 14 % de los ancianos que viven solos refieren abandono familiar. En el 2031, el 33,2% de las personas mayores vivirán solas en su domicilio. Discusión: debido a la pérdida de contacto familiar, así como de toma de decisiones y cambios en el estilo de vida de los ancianos que conviven en residencias, surge el proyecto “En mi casa”, que se inspira y sigue las bases del modelo nórdico Housing, el cual pretende erradicar esos ítems negativos mencionados con anterioridad, favoreciendo la individualidad, autonomía e intimidad familiar de cada una de esas personas de avanzada edad. Conclusiones: tanto el proyecto “En mi casa” como “A gusto en mi casa” llevan a cabo una serie de actividades y ayudas para promover la independencia tanto si están institucionalizados o habitan en su propio domicilio

    Global wealth disparities drive adherence to COVID-safe pathways in head and neck cancer surgery

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    Peer reviewe

    Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

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    Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

    Una perspectiva multidisciplinaria

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    Derivado de la necesidad de fomentar la investigación multidisciplinaria, la Facultad de Economía de la Universidad Autónoma del Estado de México llevó a cabo los días 8 y 9 de septiembre de 2016, el VIII Coloquio de Investigación intitulado “Desarrollo económico, regional y sustentable”. En este magno evento se presentaron 36 ponencias agrupadas en cinco mesas de trabajo: sectores productivos, crecimiento económico y mercado de trabajo; tecnología, innovación y organizaciones; desigualdad regional, pobreza y migración; economía financiera e internacional; y medio ambiente y sociedad. Del material expuesto en el VIII Coloquio, se eligieron 16 investigaciones, mismas que integran este libro. Los estudios presentados en cada uno de los subsiguientes capítulos fueron seleccionados de acuerdo a un proceso de rigurosidad científica, siendo sometidos a dictamen por pares ciegos a partir de la integración de un Comité Académico de expertos. Lo anterior con la finalidad de proporcionar al lector un material de investigación de calidad y solidez científica respecto a temas de trascendencia vinculados con los sectores productivos, la innovación, las organizaciones, la responsabilidad social, la desigualdad, la educación y el medioambiente.Consecuencia de la apertura de los mercados y los preceptos competitivos dictados por la globalización, se manifiesta la necesidad de vincular los diversos saberes provenientes de las ciencias naturales y sociales, con el fin de complementar el conocimiento y generar nuevas formas de visualizar el entorno. A raíz de ello, la investigación multidisciplinaria asume un papel cada vez más importante en los círculos académicos, empresariales y gubernamentales. En este marco, entra en desuso la visualización del individuo como un sujeto atomístico desvinculado del medio ambiente que le rodea. El objetivo de este libro es otorgar una visión multidisciplinaria al estudio de temas económicos incorporando visiones teóricas y empíricas procedentes de las ciencias sociales y naturales. La obra está compuesta por 16 capítulos agrupados en cuatro secciones. La primera parte, conglomera cinco capítulos en torno a los tópicos sectores productivos y crecimiento económico.Facultad de Economía. Universidad Autónoma del Estado de Méxic