The teaching portfolio an option to think and evaluate competences

El presente trabajo tiene como objetivo mostrar resultados parciales de una investigación, producto de la experiencia en el Diplomado “Formación-evaluación docente para el desarrollo de competencias”, en una universidad pública ubicada en la ciudad de México. En la primera parte, se presenta el desarrollo teórico en torno a las competencias, en concreto a las docentes. Posteriormente se hace referencia a los sustentos teóricos sobre el portafolios docente y los diversos conceptos con los que se articula, siendo un sistema alternativo de formación y evaluación. Más tarde se presenta el diseño metodológico, los resultados y las conclusiones en las que se vinculan las competencias y el portafolios docente como elementos que pueden ser complementarios y que estuvieron presentes en la experiencia realizada por los profesores durante el Diplomado.O presente trabalho tem como objetivo mostrar resultados parciais de uma investigação, produto da experiência no Diplomado “Formação-avaliação docente para o desenvolvimento de concorrências”, numa universidade pública localizada na cidade de México. Na primeira parte, apresenta-se o desenvolvimento teórico em torno das concorrências, em concreto às docentes. Posteriormente se faz referência aos sustentos teóricos sobre o portafolios docente e os diversos conceitos com os que se articula, sendo um sistema alternativo de formação e avaliação. Mais tarde se apresenta o desenho metodológico, os resultados e as conclusões nas que se vinculam as concorrências e o portafolios docente como elementos que podem ser complementares e que estiveram presentes na experiência realizada pelos professores durante o Diplomado.This paper aims to show partial results of an investigation, product of experience in the Diploma "Training-educational evaluation for competence development", which took place at a public university located in Mexico City. The first part presents the theoretical development around skills, in particular to the teachers. Subsequently referred to the theoretical underpinnings of the teaching portfolio and the various concepts that are articulated, as an alternative system of training and evaluation. Later we present the design methodology, findings and conclusions that are linked skills and teaching portfolios as complementary elements present in the experience by teachers for the Diploma

Nanoparticles for Signaling in Biodiagnosis and Treatment of Infectious Diseases

[EN]Advances in nanoparticle-based systems constitute a promising research area with important implications for the treatment of bacterial infections, especially against multidrug resistant strains and bacterial biofilms. Nanosystems may be useful for the diagnosis and treatment of viral and fungal infections. Commercial diagnostic tests based on nanosystems are currently available. Different methodologies based on nanoparticles (NPs) have been developed to detect specific agents or to distinguish between Gram-positive and Gram-negative microorganisms. Also, biosensors based on nanoparticles have been applied in viral detection to improve available analytical techniques. Several point-of-care (POC) assays have been proposed that can offer results faster, easier and at lower cost than conventional techniques and can even be used in remote regions for viral diagnosis. Nanoparticles functionalized with specific molecules may modulate pharmacokinetic targeting recognition and increase anti-infective efficacy. Quorum sensing is a stimuli-response chemical communication process correlated with population density that bacteria use to regulate biofilm formation

Relation between diagnosis of atheromatous plaque from orthopantomographs and cardiovascular risk factors. A study of cases and control subjects

Background: In recent years the use of orthopantomography has been proposed as a low-cost, reliable and noninvasive diagnostic medium for detecting atheromatous plaque. The purpose of this study was to correlate the presence of carotid calcifications (atheroma) in orthopantomographs with specific risk factors for cerebrovascular accidents (previous cerebrovascular accidents, arterial hypertension, and diabetes). Patient and Methods: The methods used in this observational study of cases and control subjects followed STROBE (Strengthening the Reporting of Observational studies in Epidemiology) recommendations. The study analyzed a total of 1,602 panoramic radiographs taken for dental diagnostic purposes between January 2010 and February 2014. The main variables analyzed were the incidence of atheromatous plaque and other cardiovascular risk factors. Epidat 3.1 statistical software was used to determine minimum sample sizes and the results were analyzed using PASW (Predictive Analytics Software) Statistics 10.0.0. Results: For all the variables analyzed, the correlation between radiographic detection of atheromatous plaque and the presence of cardiovascular disease risk factors was found to be statistically significant (RR>1.5). Conclusions: The presence of cardiovascular risk factors is related to the incidence of radiopaque lesions at the carotid artery bifurcation, indicating the presence of atheromatous plaque

Protein removal from waste brines generated during ham salting through acidification and centrifugation

[EN] The salting step in food processes implies the production of large quantities of waste brines, having high organic load, high conductivity, and other pollutants with high oxygen demand. Direct disposal of the residual brine implies salinization of soil and eutrophication of water. Since most of the organic load of the waste brines comes from proteins leaked from the salted product, precipitation of dissolved proteins by acidification and removal by centrifugation is an operation to be used in waste brine cleaning. The aim of this study is optimizing the conditions for carrying out the separation of proteins from waste brines generated in the pork ham salting operation, by studying the influence of pH, centrifugal force, and centrifugation time. Models for determining the removal of proteins depending on the pH, centrifugal force, and time were obtained. The results showed a high efficacy of the proposed treatment for removing proteins, suggesting that this method could be used for waste brine protein removal. The best pH value to be used in an industrial process seems to be 3, while the obtained results indicate that almost 90% of the proteins from the brine can be removed by acidification followed by centrifugation. A further protein removal from the brine should have to be achieved using filtrating techniques, which efficiency could be highly improved as a consequence of the previous treatment through acidification and centrifugation. Practical Application Waste brines from meat salting have high organic load and electrical conductivity. Proteins can be removed from the waste brine by acidification and centrifugation. The total protein removal can be up to 90% of the initial content of the waste brine. Protein removal is highly dependent on pH, centrifugation rate, and time.We would like to thank the Spanish Government (MCYT) and the EU (FEDER program) for the financial support of the project (AGL2004-05064-C02).Gutiérrez-Martínez, MDR.; Muñoz Guerrero, HP.; Alcaina-Miranda, MI.; Barat Baviera, JM. (2014). Protein removal from waste brines generated during ham salting through acidification and centrifugation. Journal of Food Science. 79(3):326-332. https://doi.org/10.1111/1750-3841.12373S32633279

Chemical characterization of residual lignins from eucalypt paper pulps

aCentro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, E-28040 Madrid, Spain bInstituto de Recursos Naturales y Agrobiología, CSIC, PO Box 1042, E-41080 Sevilla, Spain cENCE, CIT, Carretera de Campañó s/n, E-36157 Pontevedra, SpainResidual lignins were isolated from eucalypt kraft pulps by enzymatic hydrolysis of cellulose followed by purification using a combination of proteinase hydrolysis and solvent extraction. The residual lignins isolated from brown (unbleached) and totally chlorine free (TCF) bleached pulps were analyzed by Fourier-transform infrared (FTIR) spectroscopy and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), and compared with eucalypt milled-wood lignin and kraft lignin. The lignin in eucalypt wood and pulps showed a strong predominance of syringyl (S) over guaiacyl (G) units. The strongest lignin modification was observed in the kraft lignin recovered from the alkaline pulping liquor. The chemical composition of the residual lignin from pulp was closer to milled-wood lignin than to the kraft lignin, indicating that most of the lignin modified during pulping was released to the cooking liquor. During TCF bleaching of pulp, which included oxygen delignification and peroxide stages, modifications of lignin were produced resulting in increased amount of non-conjugated carbonyl groups. We concluded that residual lignin in eucalypt kraft pulp reflects native lignin moieties entrapped into the cellulosic network thus partially avoiding their attack by chemical reagents, although different modifications are produced during the bleaching stages.This study has been supported by ENCE, the EU-Contract QLK5-99-1357, and the Spanish project AGL2002-00393.Peer reviewe

La calidad del dato en los sistemas de información de convivencia y seguridad ciudadana.

El Proyecto Sistema Regional de Indicadores Estandarizados de Convivencia y Seguridad Ciudadana se propuso como objetivo básico contar con información comparable a nivel internacional. Este reto fue asumido por Honduras, Perú, Ecuador y Colombia desde 2008, posteriormente se fueron sumando países como República Dominicana, Uruguay, Paraguay, México, Nicaragua, El Salvador, Jamaica, Guyana, Chile, Argentina, el Distrito Metropolitano de Quito (Ecuador) y Buenos Aires (Argentina). Los hallazgos de los delegados nacionales y del equipo técnico de la unidad ejecutora del proyecto identificaron varias oportunidades para mejorar los sistemas de información; asimismo, de ellos se extraen los datos para el cálculo de los indicadores. Por consiguiente, este documento se convierte en la primera guía en español que reúne una gran cantidad de conceptos teóricos y prácticos para orientar la implementación de un sistema de aseguramiento de la calidad del dato en instituciones responsables de la convivencia y la seguridad ciudadana, y en particular aporta herramientas para los investigadores o recolectores directos de datos, los responsables del proceso de digitación, y estadísticos y analistas.La calidad de los datos en los sistemas de información de convivencia y seguridad ciudadana -- Procesos administrativos para el aseguramiento de la calidad del dato -- Herramientas estadísticas para el aseguramiento de la calidad -- Características, indicadores y estándares de la calidad del dat

The Perceived Quality of Life of Older People in Spain Who Care for Grandchildren and Related Variables: A Mixed Methods Study

Grandparental care of grandchildren is a prevalent social phenomenon. This study explores the perceptions of health-related quality of life of grandparents caring for their grandchildren. A mixed methods design was developed. In the first phase, participants were interviewed using a baseline questionnaire. The second phase consisted of focus groups with 19 of the 100 participants in the quantitative phase. The scores obtained from the quantitative analysis are in line with the qualitative data; they reflect that grandparent carers who are more involved in the care of their grandchildren have more symptoms of depression and stress and have poorer perceptions of physical health-related quality of life. What may at first appear to be a positive aspect, keeping grandparent carers active, can become negative when it comes to shared care and when the grandparents’ willingness to provide care is abused.This research was funded by the Office of the Vice President of Research and Knowledge Transfer for the promotion of R&D in the University of Alicante 2019 Programme, Grant/Award Number: GRE19-08

Estudio de prefactibilidad para la construcción de sistema de biodigestión para comedor "Domingo Socio" de la asociación Padre Fabretto

Presenta un análisis de prefactibilidad de construir un sistema de biodigestión en el comedor Domingo Socio de la Asociación Fabretto. La finalidad del proyecto es la obtención de gas metano a partir de materia orgánica (Biogás). Se presenta un análisis del consumo de gas butano y el costo de compra de este producto, igualmente se determina la disponibilidad de materia prima la cual fue la base para calcular el nivel de producción de biogás anual a partir de la misma

Factores inductores del conocimiento alfabético en estudiantes prelectores

El conocimiento sobre el proceso de aprendizaje de la lectura en las primeras edades es un factor sobre el que se han realizado numerosa sinvestigaciones en los últimos años. Sesabe que existen una serie de habilidades prelectoras que facilitan su adquisición, sin embargo, falta profundizar en las aportaciones que estas presentan en el inicio del proceso de alfabetización. El objetivo de este trabajo se ha centrado en analizar las relaciones y el valor predictivo que determinadas habilidades asociadas al aprendizaje temprano pueden tener en el acceso a la adquisición del conocimiento alfabético, al ser este uno de los factores más importantes que intervienen en el aprendizaje de la lectura. Se utilizó un diseño transversal descriptivo de alcance correlacional-predictivo. En elestudio participaron 236 estudiantes con edades comprendidas entre 4 y 5 años. Los resultados dan cuenta de la relevancia que la estimulación temprana en una serie de precursores lectores entre los que se encuentra la conciencia fonológica, el lenguaje oral y determinados procesos cognitivos, tiene en el acceso al conocimiento alfabético

In Vitro Antimicrobial Susceptibilities of Francisella tularensis subsp. holarctica Isolates from Tularemia Outbreaks That Occurred from the End of the 20th Century to the 2020s in Spain

[EN] A collection of 177 Francisella tularensis subsp. holarctica clinical isolates (29 from humans and 148 from animals, mainly hares and voles) was gathered from diverse tularemia outbreaks in the Castilla y León region (northwestern Spain) that occurred from the end of the 20th century to the 2020s. Along with four F. tularensis subsp. holarctica reference strains, all of these clinical isolates were tested using a broth microdilution method to determine their susceptibility to 22 antimicrobial agents, including β-lactams, aminoglycosides and one member each of the tetracycline, glycylcycline, quinolone and sulphonamide classes. Many multi-resistance profiles were found among the tested isolates, but especially among those of human origin (all but two isolates showed resistance to at least 13 of 18 antimicrobial agents). Even so, all human isolates were susceptible to gentamicin and tobramycin, while more than 96% of animal isolates were susceptible to these two aminoglycosides. Ciprofloxacin showed activity against more than 92% of animal and human isolates. However, almost 21% of human isolates were resistant to tetracycline, and more than 65% were resistant to tigecycline. Finally, a quite similar activity to other F. tularensis subsp. holarctica isolates collected 20 years earlier in Spain was observedSIThis study was supported by a contract—project, “Caracterización de posibles resistencias antimicrobianas y estudios de virulencia de las cepas aisladas de Francisella tularensis. Contexto One Health” financed by the Consejería de Agricultura, Ganadería y Desarrollo Rural, Junta de Castilla y León. The 181 F. tularensis isolates were owned by the Laboratorio Regional de Sanidad Animal, León, Spain, or by the Hospital Clínico Veterinario, Valladolid, Spai