PREPARACIÓN Y DESEMPEÑO DE LOS DIRECTORES ESCOLARES EN LA DIRECCIÓN INSTITUCIONAL DEL PROCESO DE ENSEÑANZAAPRENDIZAJE

This paper presents the outcomes of a diagnostic study applied to a sample of Junior High School principals. Such diagnosis is aimed to characterize their performance to direct the teaching-learning process. Therefore, two dimensions were considered: the principals´ general preparation for the teaching-learning process institutional management and their performance to direct the processes that are comprised in such management. As a result, this study laid open the principals´ limited knowledge on the national educative policy foundations, according to the peculiarities of Junior High School. Likewise, the principals showed a scarce knowledge on conceptual and theoretical components of the teaching-learning process at this level. At he same time, they evidenced difficulties in applying the official document that rules the methodological work. Also, some limitations were identified in the principals´ performance to direct the systematic diagnosis of the directive staff and teachers in order to guide the formative process and methodological work. Finally, the greatest potentiality was identified in the organizational assurance and setting conditions to successfully carry out the teaching-learning process.Se presentan los resultados de un estudio diagnóstico desarrollado en una muestra de directores escolares de secundaria básica, dirigido a caracterizar su preparación y desempeño en la dirección institucional del proceso de enseñanza-aprendizaje. Se consideraron dos dimensiones referidas a la preparación general de los directores para gestionar la dirección institucional del proceso de enseñanza-aprendizaje y a su preparación y desempeño en la conducción de los procesos que configuran dicha gestión. El estudio reveló que los directores poseen un conocimiento insuficiente de los postulados principales de la política educativa nacional y sus especificidades para el nivel de secundaria básica, de elementos teórico-conceptuales del proceso de enseñanza-aprendizaje, y de la normativa y aspectos conceptuales del trabajo metodológico. De igual modo, se identificaron limitaciones en su preparación y desempeño en la conducción de los procesos inherentes al diagnóstico sistemático del estado de la preparación y el desempeño de los profesores y directivos para la dirección del proceso formativo y de los niveles de formación logrados por los alumnos, así como en la dirección del trabajo metodológico. La mayor fortaleza se identificó en su preparación y desempeño en el aseguramiento de las condiciones organizacionales y ambientales para la ejecución efectiva del proceso de enseñanza aprendizaje-escolar

LA PERTINENCIA INFORMACIONAL: UNA CONDICIÓN NECESARIA DE LA DIRECCIÓN INSTITUCIONAL DEL PROCESO DE ENSEÑANZA-APRENDIZAJE

The growth of the responsibility of the school directors, in the context of the change that impacts the educational systems in the last five years, has generated the need of their greater implication in the conduction of the educational processes that take place in the school institution, in particular , the teaching-learning, and has led to a recognition, increasingly growing; of the existence of an institutional direction of the teaching-learning process, referring to its professional management activity, whose essential content is to ensure the institutional conditions for this process to be effective, among them the informational one The information and especially the relevance that it offers is an essential premise to achieve it; the habit of capturing valuable information, processing it, making sense of it, using it and distributing it is the responsibility of the managers in the first instance. This work aims to assess the importance of information, which as an input in the institutional direction of the teaching-learning process the school director must manage; from the attention to two specific processes: a) the examination of the guidelines of the national educational policy and b) the analysis and systematic follow-up of the results of the integral diagnosis of the school institution, so that, with the assurance to other concurrent processes, guarantee its continuous improvement.  El crecimiento de la responsabilidad de los directores escolares, en el contexto del cambio que impacta los sistemas educativos en los últimos lustros, ha generado la necesidad de su mayor implicación en la conducción de los procesos educativos que tienen lugar en la institución escolar, en particular, el de enseñanza-aprendizaje, y ha derivado en un reconocimiento, cada vez más creciente; de la existencia de una dirección institucional del proceso de enseñanza-aprendizaje, referente a su actividad profesional de dirección, cuyo contenido esencial es asegurar las condiciones institucionales para que dicho proceso resulte efectivo, entre ellos la informacional La información y sobre todo la pertinencia que esta ofrezca es premisa indispensable para lograrlo; el hábito de captar información valiosa, procesarla, darle sentido, utilizarla y distribuirla es responsabilidad en primera instancia, de los directivos. Este trabajo tiene como objetivo valorar la importancia de la información, que como insumo en la dirección institucional del proceso de enseñanza-aprendizaje el director escolar debe gestionar; desde la atención a dos procesos específicos: a) el examen de las directrices de la política educativa nacional y b) el análisis y seguimiento sistemático de los resultados del diagnóstico integral de la institución escolar, para que, con el aseguramiento a otros procesos que concurren garantice su mejoramiento continuo

Efficient multicomponent synthesis of diverse antibacterial embelin-privileged structure conjugates

A library of embelin derivatives has been synthesized through a multicomponent reaction from embelin (1), aldehydes and privileged structures such as 4-hydroxycoumarin, 4-hydroxy-2H-pyran-2-one and 2-naphthol, in the presence of InCl3 as catalyst. This multicomponent reaction implies Knoevenagel condensation, Michael addition, intramolecular cyclization and dehydration. Many of the synthesized compounds were active and selective against Gram-positive bacteria, including one important multiresistant Staphylococcus aureus clinical isolate. It was found how the conjugation of diverse privileged substructure with embelin led to adducts having enhanced antibacterial activities.Fil: Martín Acosta, Pedro. Universidad de La Laguna. Departamento de Química Orgánica. Instituto Universitario de Bio-Orgánica "Antonio González"; EspañaFil: Peña, Rosalyn. Universidad de La Laguna. Departamento de Química Orgánica. Instituto Universitario de Bio-Orgánica "Antonio González"; EspañaFil: Feresin, Gabriela Egly. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; ArgentinaFil: Tapia, Alejandro. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Biotecnología; ArgentinaFil: Lorenzo Castrillejo, Isabel. Hospital Universitario Nuestra Señora de la Candelaria; España. Universidad de La Laguna; España. Universidad Fernando Pessoa Canarias; EspañaFil: Machín, Félix. Hospital Universitario Nuestra Señora de la Candelaria; EspañaFil: Amesty, Ángel. Universidad de La Laguna. Departamento de Química Orgánica. Instituto Universitario de Bio-Orgánica "Antonio González"; EspañaFil: Estévez Braun, Ana. Universidad de La Laguna. Departamento de Química Orgánica. Instituto Universitario de Bio-Orgánica "Antonio González"; Españ

Negative Regulation of Abscisic Acid Signaling by the Fagus sylvatica FsPP2C1 Plays A Role in Seed Dormancy Regulation and Promotion of Seed Germination

FsPP2C1 was previously isolated from beech (Fagus sylvatica) seeds as a functional protein phosphatase type-2C (PP2C) with all the conserved features of these enzymes and high homology to ABI1, ABI2, and PP2CA, PP2Cs identified as negative regulators of ABA signaling. The expression of FsPP2C1 was induced upon abscisic acid (ABA) treatment and was also up-regulated during early weeks of stratification. Furthermore, this gene was specifically expressed in ABA-treated seeds and was hardly detectable in vegetative tissues. In this report, to provide genetic evidence on FsPP2C1 function in seed dormancy and germination, we used an overexpression approach in Arabidopsis because transgenic work is not feasible in beech. Constitutive expression of FsPP2C1 under the cauliflower mosaic virus 35S promoter confers ABA insensitivity in Arabidopsis seeds and, consequently, a reduced degree of seed dormancy. Additionally, transgenic 35S:FsPP2C1 plants are able to germinate under unfavorable conditions, as inhibitory concentrations of mannitol, NaCl, or paclobutrazol. In vegetative tissues, Arabidopsis FsPP2C1 transgenic plants show ABA-resistant early root growth and diminished induction of the ABA-response genes RAB18 and KIN2, but no effect on stomatal closure regulation. Seed and vegetative phenotypes of Arabidopsis 35S:FsPP2C1 plants suggest that FsPP2C1 negatively regulates ABA signaling. The ABA inducibility of FsPP2C1 expression, together with the transcript accumulation mainly in seeds, suggest that it could play an important role modulating ABA signaling in beechnuts through a negative feedback loop. Finally, we suggest that negative regulation of ABA signaling by FsPP2C1 is a factor contributing to promote the transition from seed dormancy to germination during early weeks of stratification

Materials Science Toolkit for Carbon Footprint Assessment: A Case Study for Endoscopic Accessories of Common Use

[EN] Ironically, healthcare systems are key agents in respiratory-related diseases and estimated deaths because of the high impact of their greenhouse gas emissions, along with industry, transportation, and housing. Based on safety requirements, hospitals and related services use an extensive number of consumables, most of which end up incinerated at the end of their life cycle. A thorough assessment of the carbon footprint of such devices typically requires knowing precise information about the manufacturing process, rarely available in detail because of the many materials, pieces and steps involved during the fabrication. And yet, tools most often used for determining the environmental impact of consumer goods just require a bunch of parameters, mainly based on the material composition of the device. Here we report a basic set of analytical methods that provide the information required by the software OpenLCA to calculate the main outcome related to environmental impact, the greenhouse gas emissions. Through thermogravimetry, calorimetry, infrared spectroscopy and elemental analysis we proved that obtaining relevant data for the calculator in the exemplifying case of endoscopy tooling or accessories is possible. This routine procedure opens the door to a broader, more accurate analysis of the environmental impact of everyday work at hospital services, offering potential alternatives to minimize it.This study has been funded by Instituto de Salud Carlos III (ISCIII) through the project PI21/00193 and cofunded by the European Union. Funding: Instituto de Salud Carlos III (ISCIII), PI21/00193, cofunded by the European Union. And through the project PI2023-6 from UPV-LaFe innovation projects.Martín-Cabezuelo, R.; Vilariño-Feltrer, G.; Campillo Fernandez, AJ.; Lorenzo-Zúñiga, V.; Pons, V.; López-Muñoz, P.; Tort-Ausina, I. (2023). Materials Science Toolkit for Carbon Footprint Assessment: A Case Study for Endoscopic Accessories of Common Use. ACS Environmental Au. https://doi.org/10.1021/acsenvironau.3c0004

Sustained high serum malondialdehyde levels are associated with severity and mortality in septic patients

This book digs into an area of international migration studies that has gained prominence in the past couple of decades: migrant smuggling. The regional focus is southern Europe, which receives immigrants from many African and Asian countries. Migrant smuggling is discussed in relation to EU and national policies, aimed at combating irregular migration, including increased surveillance and border controls.The authors are no newcomers to the field. Anna Triandafyllidou is a leading scholar in migration studies, having published extensively on various topics dealing with migration in Europe, and with a special interest in Greece and southern Europe. Thanos Maroukis, on the other hand, is an early career academic whose publications have focused specifically on migration in Greece. It is, therefore, not surprising that the authors approached this topic of migrant smuggling from Africa and Asia to Europe by focusing mainly on the situation in Greece and the Turkish-Greek route. The book is based on fieldwork, participant observation and interviews conducted in Athens. The empirical material is extensive, covering a broad range of actors.peer-reviewe

Magnetic fields in M dwarfs from the CARMENES survey

M dwarfs are known to generate the strongest magnetic fields among main-sequence stars with convective envelopes, but the link between the magnetic fields and underlying dynamo mechanisms, rotation, and activity still lacks a consistent picture. In this work we measure magnetic fields from the high-resolution near-infrared spectra taken with the CARMENES radial-velocity planet survey in a sample of 29 active M dwarfs and compare our results against stellar parameters. We use the state-of-the-art radiative transfer code to measure total magnetic flux densities from the Zeeman broadening of spectral lines and filling factors. We detect strong kG magnetic fields in all our targets. In 16 stars the magnetic fields were measured for the first time. Our measurements are consistent with the magnetic field saturation in stars with rotation periods P<4d. The analysis of the magnetic filling factors reveal two different patterns of either very smooth distribution or a more patchy one, which can be connected to the dynamo state of the stars and/or stellar mass. Our measurements extend the list of M dwarfs with strong surface magnetic fields. They also allow us to better constrain the interplay between the magnetic energy, stellar rotation, and underlying dynamo action. The high spectral resolution and observations at near-infrared wavelengths are the beneficial capabilities of the CARMENES instrument that allow us to address important questions about the stellar magnetism.Comment: 13 pages of main text, 14 pages of online material, 2 table