1,799 research outputs found

    Supervisor leadership style, employee regulatory focus, and leadership performance: A perspectivism approach

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    [EN] Drawing on regulatory focus theory, this research proposes that transformational leadership performance depends on followers' circumstances. The analysis of 125 people from two Spanish service firms reveals that, apart from transformational leadership, the presence of academic education, intrinsic job satisfaction and high customer contact, and the absence of family responsibilities, are core conditions for the presence of high leadership performance. The first contribution of this study is the direct inference of follower's regulatory focus from the observation of individuals' circumstances. The second contribution is that leaders should consider followers' circumstances to adopt a suitable leadership style while they enhance followers' regulatory focus.The authors acknowledge the Chair of Business & Humanism of the University of Valencia-Generalitat Valenciana and its private sponsors Caixa Popular and Seidor for the financial support to this research.González-Cruz, TF.; Botella-Carrubi, D.; Martínez-Fuentes, CM. (2019). Supervisor leadership style, employee regulatory focus, and leadership performance: A perspectivism approach. Journal of Business Research. 101:660-667. https://doi.org/10.1016/j.jbusres.2019.01.06566066710

    Altered calcium signaling in platelets from nitric oxide-deficient hypertensive rats

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    BACKGROUND: In the present study we have analyzed the mechanisms of calcium entry and mobilization in platelets obtained from rats chronically treated with the nitric oxide synthesis inhibitor, N-nitro L-arginine methyl ester [L-NAME, 40 mg/kg/day, 5 days). The platelets were obtained the day of the experiment, washed and loaded with fura-2. The intracellular calcium levels were determined in suspension of cells by means of fluorescence spectroscopy. RESULTS: Basal calcium levels were always elevated in the platelets of the L-NAME-treated rats, both in the presence and in the absence of extracellular calcium. The administration of thrombin in the absence and in the presence of extracellular calcium induced important elevations in calcium levels that were always of greater magnitude in the platelets of the L-NAME-treated rats than in those of the controls. The addition of calcium to thapsigargin-treated platelets produced a massive elevation in calcium levels in both groups that was significantly greater in the platelets obtained from the hypertensive rats than in those of the controls. CONCLUSIONS: It is concluded that the arterial hypertension induced by the reduction of nitric oxide alters the regulation of platelet calcium levels so that elevated baseline levels and calcium entry and mobilization are enhanced. This could be the result of direct or indirect effects of the lack of nitric oxide synthesis in platelets or in other tissues

    Education and innovation - vet students into technology companies

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    VET education is an effective and accessible way for students, to improve their employability and inclusion possibilities. It allows them to train technically in a short time to do a job and try to access the labor market. However, not even obtaining a qualification aimed at vocational training ensures access to the labor market or real possibilities of emancipation. The success of VET graduates in their first work experience joining technology companies requires the development of many skills that are common to all professional careers, but also specific skills that derive from the innovative nature of the work method and objectives of these companies. For this reason, within the framework of the Erasmus + Program, the project VET STUDENTS İNTO TECHNOLOGY COMPANİES: A VET students mobility network in the technological sector through a virtual environment with specific materials for critical thinking is being developed with the aim of promoting employability and inclusion of VET students at risk of exclusion. The project focuses on the creation of virtual tools, collaborative work methodologies and virtual training materials that allow these young people to improve their critical thinking capacity and their technological and digital skills. The project's methodology is based on the combination of the creation of training materials and a network of mobility in high-tech centres, where students will carry out a first work experience. Regarding training materials, one of the main results of this project is PERSONALIZED DIGITAL COURSE FOR LABOR TRAINING IN A TECHNOLOGICAL CENTER. This course generates personalized learning based on the student's previous knowledge and the characteristics of the technological company in which they will carry out their internship. The course follows an innovative methodology based on microlearning, a learning characterized by the resolution of relatively small exercises (pills) that are focused on the development of technical and work skills and the reinforcement of critical thinking as a fundamental mechanism. The objective of this course is not so much to provide new knowledge as to develop skills that allow the students to face problems or tasks unknown to them until then: self-training skills, assess their own way of reasoning, set objectives, raise relevant questions, state hypothesis, search for information, intellectual integrity, oral and written communication, work in multidisciplinary teams. Along with this course, within the framework of this project, the result ON YOUR SIDE is being developed, a digital educational software available for mobile devices, which will accompany the student throughout the mobility process, providing useful information such as specific training resources focused on the company where they will carry out their mobility, linguistic resources, collaborative work tools, as well as social integration resources in the destination country, among others. From this App, students will be able to access the aforementioned course. In this paper we present how, through microlearning methodology and critical thinking, students can solve the content pills through their autonomy and self-discovery.This work has been funded by the Erasmus + program within the 2019-1-ES01-KA202-064569 project, Spanish Service for the Internationalization of Education (SEPIE

    VET students into technology companies: a microlearning digital course to train critical thinking skills

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    This microlearning course is designed to support VET graduates or students, especially those with fewer opportunities, who join a technology company at the beginning of their professional career. It has been developed within the framework of the Erasmus + project “VET STUDENTS İNTO TECHNOLOGY COMPANİES: A VET students mobility network in the technological sector through a virtual environment with specific materials for critical thinking”. This is an intiative co-financed by the Erasmus + Programme, with a personalized digital course format, to take into account both the previous training of the VET student or graduate and the type of company they will join. The course has in its sights to develop in the VET student the specific competences required by the technology company to address the problems typical of fields of leading technology innovation, as well as fitting in multidisciplinary teams. To do this, this course generates an innovative methodology in which the education itinerary is built based on previous knowledge of the student and the needs and work field of the technology company. Besides its contents strengthen critical thinking as an essential mechanism for work in both dynamic and technology sectors. For that purpose, the student is asked a series of questions in the form of problems that, in addition to being related to the study plans of VET studies, require for their solution the search for information, its analysis and many times the making of a decision or adopting a personal position on it. We aim with our training projects, within the Erasmus + program, to convince students that they are capable of going further and further in the development of their professional skills being the technology sector an acceptable option for them, making their work increasingly valuable for their inclusion, for their own personal development, for that of the company in which they work and for society. But for this certain skills are required, and one of the most important is learning to learn autonomously and to accurately analyse the information received and the decisions that are made from it. It is generally true that the problems that one encounters in professional practice are not going to be the ones that you were taught in your VET studies. Vocational training has to head for equipping students with the necessary tools to face the new problems that they will face in their job and to grow professionally every day. We intend to show how valuable critical thinking skills are in analysing our way of thinking and making decisions. In this paper we present examples of the exercises included in the course, how their approach and the processes that have led to a solution relate with the standards of critical thinking and the different levels of help that are offered to the student for their solution. The course is accessible from a digital educational software “ON YOUR SIDE: VIRTUAL ASSISTANT FOR EUROPEAN MOBILITIES IN TECHNOLOGICAL CENTERS” developed in the framework of this Erasmus+ project in order to develop cooperative work between students with fewer opportunities doing their internships in technology companies and their inclusion in new job posts. We will also present this software in a very summarized way in this article.This work has been funded by the Erasmus + program within the 2019-1-ES01-KA202-064569 project, Spanish Service for the Internationalization of Education (SEPIE

    Inter-venir entre violencias : Reflexiones sobre posibles abordajes en torno a situaciones complejas en la niñez

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    Partimos de una experiencia, enmarcada en el Proyecto de Extensión “Ejerciendo nuestros Derechos. Promoviendo los derechos a jugar y aprender como una trama posible”, acreditado por la UNLP en el año 2014, junto a un grupo de nenes y nenas, en su mayoría entre 6 a 13 años, aunque en ocasiones se suman más pequeños y adolescentes, de un territorio complejo de la periferia de La Plata. Se inició con la participación de dos unidades académicas: Facultad de Psicología y Facultad de Trabajo Social, así como de profesionales de antropología, artes plásticas y agronomía.We start from an experience, part of the extension project "Exercising our Rights. Promoting the rights to play and learn as a possible plot ", accredited by the UNLP in 2014, with a group of kids and girls, mostly between 6-13 years, a resort area on the outskirts of La PlataTalleresFacultad de Psicologí

    Inter-venir entre violencias : Reflexiones sobre posibles abordajes en torno a situaciones complejas en la niñez

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    Partimos de una experiencia, enmarcada en el Proyecto de Extensión “Ejerciendo nuestros Derechos. Promoviendo los derechos a jugar y aprender como una trama posible”, acreditado por la UNLP en el año 2014, junto a un grupo de nenes y nenas, en su mayoría entre 6 a 13 años, aunque en ocasiones se suman más pequeños y adolescentes, de un territorio complejo de la periferia de La Plata. Se inició con la participación de dos unidades académicas: Facultad de Psicología y Facultad de Trabajo Social, así como de profesionales de antropología, artes plásticas y agronomía.We start from an experience, part of the extension project "Exercising our Rights. Promoting the rights to play and learn as a possible plot ", accredited by the UNLP in 2014, with a group of kids and girls, mostly between 6-13 years, a resort area on the outskirts of La PlataTalleresFacultad de Psicologí

    Composición específica y abundancia de macroalgas y angiospermas marinas en tres arrecifes coralinos de la plataforma Sudoccidental de Cuba (1987)

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    Background. Few investigations use macroalgae´s biomass as an indicator of their abundance on coral reefs, where they play an important role. Goals. To explore the spatial and temporal differences in the macroalgae communities in three coral reefs located along the southern coast of Cuba. Methods. Differences in abundance, species number, and specific composition of macroalgae were analyzed in four zones (reef lagoon and fore reef at 5, 10, and 15 m depth) in three coral reefs, intwo climatic periods (dry and rainy) in 1987. The frequency of appearance, the dry biomass by species, and the dry total biomass were used as abundance indicators. Multivariate and univariate analysis were used. Relationships among these variables and some environmental characteristics (depth, substratum type, hydrodynamics, and bottom relief) of sites were examined. Results. 67 macroalgae species and three marine angiospermae were reported. Differences in specific composition and biomass were found among sites and zones, but not between the climatic periods, with a decrease in species number when depth increases. At reef lagoons, higher biomass and frequency were found for the marine seagrassThalassia testudinum and macroalgae Halimeda incrassata and H. simulans. At fore reefs, the most important species in terms of their biomass and frequency were Halimeda scabra and Dictyota ciliolata. Juan García reef had the highest values of total biomass and species number, probably due to the mixed substrata and the contribution of nutrients. Cantiles reef, with poorer oceanic waters, had lower total biomass. In Diego Pérez reef, the species number was lower, apparently because this location is more protected. Conclusions. The habitat characteristics and the decrease in light as depth increases seem to be determining factors in the distribution of the macroalgae species.Antecedentes. Pocas investigaciones emplean la biomasa de macroalgas como indicador de su abundancia en arrecifes coralinos, donde éstas juegan un papel fundamental. Objetivos. Explorar las diferencias espaciales y temporales en las comunidades de macroalgas y angiospermas en tres arrecifes coralinos de la costa sur de Cuba. Métodos. Se analizaron las diferencias en abundancia, riqueza y composición específica de macroalgas y angiospermas en cuatro zonas, a distintas profundidades y dos épocas climáticas en tres arrecifes coralinos durante 1987. Se empleó la frecuencia de aparición, la biomasa seca por especie y la biomasa seca total como indicadores de la abundancia y se realizaron análisis multivariados y univariados. Se examinaron las relaciones entre estas variables con algunas características ambientales de los sitios (profundidad, tipo de sustrato, hidrodinamismo, relieve del fondo). Resultados. Se registraron 67 especies de macroalgas y 3 angiospermas marinas. Hubo diferencias en la composición específica y biomasa total entre los sitios y las zonas, con una disminución en el número de especies al aumentar la profundidad, pero no entre las épocas climáticas. En las lagunas, los valores más altos de biomasa y frecuencia de aparición fueron para Thalassia testudinum y las macroalgas Halimeda incrassata y H. simulans. En la zona frontal, las especies más importantes por su biomasa y frecuencia fueron Halimeda scabra y Dictyota ciliolata. En Juan García los valores de biomasa total y número de especies fueron más altos, probablemente por el sustrato mixto y el aporte de nutrientes. Cantiles, con aguas oceánicas más pobres, tuvo la menor biomasa de macroalgas. En Diego Pérez, el número de especies fue menor, posiblemente por ser una zona más resguardada. Conclusiones. Las características del hábitat y la disminución de la luz con el aumento de la profundidad parecen ser factores determinantes en la distribución de las especies de macroalgas en los arrecifes

    Inter-venir entre violencias : Reflexiones sobre posibles abordajes en torno a situaciones complejas en la niñez

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    Partimos de una experiencia, enmarcada en el Proyecto de Extensión “Ejerciendo nuestros Derechos. Promoviendo los derechos a jugar y aprender como una trama posible”, acreditado por la UNLP en el año 2014, junto a un grupo de nenes y nenas, en su mayoría entre 6 a 13 años, aunque en ocasiones se suman más pequeños y adolescentes, de un territorio complejo de la periferia de La Plata. Se inició con la participación de dos unidades académicas: Facultad de Psicología y Facultad de Trabajo Social, así como de profesionales de antropología, artes plásticas y agronomía.We start from an experience, part of the extension project "Exercising our Rights. Promoting the rights to play and learn as a possible plot ", accredited by the UNLP in 2014, with a group of kids and girls, mostly between 6-13 years, a resort area on the outskirts of La PlataTalleresFacultad de Psicologí

    Metal bashing: iron deficiency and manganese overexposure impact on peripheral nerves

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    Iron (Fe) deficiency (FeD) and manganese (Mn) overexposure (MnOE) may result in several neurological alterations in the nervous system. Iron deficiency produces unique neurological deficits due to its elemental role in central nervous system (CNS) development and myelination, which might persist after normalization of Fe in the diet. Conversely, MnOE is associated with diverse neurocognitive deficits. Despite these well-known neurotoxic effects on the CNS, the influence of FeD and MnOE on the peripheral nervous system (PNS) remains poorly understood. The aim of the present investigation was to examine the effects of developmental FeD and MnOE or their combination on the sciatic nerve of young and adult rats. The parameters measured included divalent metal transporter 1 (DMT1), transferrin receptor (TfR), myelin basic protein (MBP) and peripheral myelin protein 22 (PMP22) expression, as well as Fe levels in the nerve. Our results showed that FeD produced a significant reduction in MBP and PMP22 content at P29, which persisted at P60 after Fe-sufficient diet replenishment regardless of Mn exposure levels. At P60 MnOE significantly increased sciatic nerve Fe content and DMT1 expression. However, the combination of FeD and MnOE produced no marked motor skill impairment. Evidence indicates that FeD appears to hinder developmental peripheral myelination, while MnOE may directly alter Fe homeostasis. Further studies are required to elucidate the interplay between these pathological conditions.Fil: Amos Kroohs, Robyn M.. University of North Carolina; Estados UnidosFil: Usach, Vanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; ArgentinaFil: Piñero, Gonzalo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; ArgentinaFil: Vorhees, Charles V.. University of Cincinnati; Estados UnidosFil: Martínez Vivot, Rocío. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; ArgentinaFil: Soto, Paula Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; ArgentinaFil: Williams, Michael T.. University of Cincinnati; Estados UnidosFil: Setton, Clara Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; Argentin
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