3,149 research outputs found

    Indicators on Gender Segregation

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    The objective of this study is to analyse ways of measuring gender segregation, and to consider specifically how the different types of indices can be used and interpreted. The different indicators of segregation are calculated for the EU member-states and a comparative analysis of the situation of European labour markets is made using the different indices. This paper also intends to make a general discussion on the issue of gender segregation, to give recommendations as to how segregation should be measured using current tools and to suggest improvements to existing ways of measuring segregation.Labour market, gender, segregation

    Biomonitoring of organic pollutants in pet dog plasma samples in North-Western Spain

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    Financiado para publicación en acceso aberto: Universidade de Vigo/CISUGMost of organic pollutants (OPs) have the ability to interfere with biological systems causing negative effects in living beings, including humans. In the last decades, pets have been used as bioindicators of human exposure because they share the same habitat with their homeowners. We sought to determine levels of approximately 70 OPs, including polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), polybrominated biphenyl ethers (PBDEs), organophosphate pesticides (OPPs), polycyclic aromatic hydrocarbons (PAHs) and pyrethroids (PYRs) in plasma samples from 39 pet dogs from Ourense (north-western Spain). The results revealed that PAHs were the dominant OPs (mean value 175 ± 319 ng/g lipid weight (lw)), followed by PYRs (132 ± 352 ng/g lw), PCBs (122 ± 96 ng/g lw), OCPs (33 ± 17 ng/g lw), PBDEs (19 ± 18 ng/g lw) and OPPs (2.1 ± 2.7 ng/g lw) in plasma samples. We have previously detected the target OPs in hair samples of pets, collected simultaneously and similar trend of some OPs has been observed. Moreover, pyrene and chrysene showed correlations between levels detected in both matricesXunta de Galicia | Ref. GRC-ED431C 2022/3

    Computational thinking and robotics in education

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    After the computational thinking sessions in the previous 2016-2018 editions of TEEM Conference, the fourth edition of this track has been organized in the current 2019 edition. Computational thinking is still a very significant topic, especially, but not only, in pre-university education. In this edition, the robotic has a special role in the track, with a strength relationship with the STEM and STEAM education of children at the pre-university levels, seeding the future of our society

    Promoting autonomous work of students with the MILAGE Learn+ app

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    In this paper, we present the MILAGE Learn+ app, developed for smartphones and tablets in order to promote autonomous work of students in the process of learning mathematics. With this app students solve mathematics activities and get help by playing videos with problem resolutions. Autonomous learning and effective self-regulatory strategies are very important in learning; without these, students might not be able to exploit learning opportunities outside classrooms. For that, an important way of supporting learning autonomy is to promote student-centered learning approaches. Students can use mobile devices to implement a blended learning model and use the MILAGE Learn+ app that allows the implementation of student-centered learning approaches involving students with different skills. For this purpose, the app accommodates gaming mechanics dealing with complexity and detail. It has three different levels of problems complexity: beginners, intermediate and advanced. On the other hand, each problem can have two levels of explanations/resolutions: detailed and concise. These features provide the same opportunities to all students. So, low-achieving students that may struggle to learn the materials covered in class can watch the video resolution as many times as they want until they understand the subject. But students have also access to complex maths problems that may provide additional stimulation for top performers. In this way, we provide a platform where students can work autonomously, and the app is also capable of accommodating students with different mathematic skills.info:eu-repo/semantics/publishedVersio

    Breaking barriers in learning math: architecture of the MILAGE Learn+ App

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    Conferência realizada em Lisboa de 16-17 de novembro de 2018.The purpose of the present conference paper is to describe the conceptual framework underpinning the design of a mobile app to teach and learn math in secondary schools. The mobile learning concept is part of a societal model that assumes digital skills as vital in the ability to analyze and produce digital information, apply creative skills and innovation (technological and methodological), and engage in collaborative work. Self-directed learning and learner autonomy explicitly accept responsibility for their learning in the sense of sharing the setting of learning goals, taking initiatives in planning and executing learning activities, and regularly reviewing their learning and evaluating their goals. Mobile learning may become an autonomous activity, selfmotivated, and promote informal learning or/and be part of the school experience. Counseling, self and peerassessment, and peer-to-peer collaboration are some of the requirements underlying the design of the MILAGE Learn+mobile app, an interactive artifact intended for learning mathematics in secondary schools.This research was supported by “MILAGE: Interactive Mathematics by implementing a Blended-Learning model with Augmented Reality and Game Books” (Nº2015-1-PT01-KA201-012921), an Erasmus+ Project, funded by the European Union. Also it was supported by Consejería de Economía e Infraestructuras, Secretaría General de Ciencia, Tecnología e Innovación, Junta de Extremadura to make technological research and development, dissemination and transfer knowledge activities by research groups belong to University of Extremadura (Spain). Ref. GR15096. Research Group: Nodo Educativo (SEJ035) and REUNI+D (Red Universitaria de Investigación e Innovación Educativa).info:eu-repo/semantics/publishedVersio

    Singular Olive Oils from a Recently Discovered Spanish North-Western Cultivar: An Exhaustive 3-Year Study of Their Chemical Composition and In-Vitro Antidiabetic Potential

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    In this work, the quality and physicochemical parameters, phenolic composition, and antidiabetic potential of olive oils obtained from olives belonging to centenarian olive trees of the so-called 'Mansa de Figueiredo' cultivar were evaluated during three consecutive crop seasons (2017-2019). The oils produced during the three crop years were classified as extra virgin based on the quality-related indices, sensory analysis, and the genuineness-related parameters. In addition, LC-ESI-TOF MS was used to get a comprehensive characterisation of the phenolic fraction while LC-ESI-IT MS was applied for quantitation purposes. The content of phenolic compounds (ranging from 1837 to 2434 mg/kg) was significantly affected by the harvest year due to the environmental conditions and ripening index. Furthermore, although significant differences in the inhibitory effects against the alpha-glucosidase enzyme for the EVOOs extracted throughout the three successive years were detected, all the studied EVOOs exhibited a stronger inhibitor effect than that found for acarbose.Spanish Government RTI2018-098633-B-I00FEDER/Junta de Andalucia-Consejeria de Transformacion Economica, Industria, Conocimiento y Universidades P20_00263FQM-297 research group (Environmental, Biochemical and Nutritional Analytical Control) FEDER/Junta de AndaluciaConsejeria de Economia y Conocimiento B-AGR-416-UGR18Spanish Government FPU19/0070

    Nutraceutical Potential of Phenolics from `Brava´ and `Mansa´ Extra-Virgin Olive Oils on the Inhibition of Enzymes Associated to Neurodegenerative Disorders in Comparison with Those of `Picual´ and `Cornicabra´

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    The increasing interest in theMediterranean diet is based on the protective effects against several diseases, including neurodegenerative disorders. Polyphenol-rich functional foods have been proposed to be unique supplementary and nutraceutical treatments for these disorders. Extra-virgin olive oils (EVOOs) obtained from 0Brava0 and 0Mansa0, varieties recently identified from Galicia (northwestern Spain), were selected for in vitro screening to evaluate their capacity to inhibit key enzymes involved in Alzheimer0s disease (AD) (acetylcholinesterase (AChE), butyrylcholinesterase (BuChE) and 5-lipoxygenase (5-LOX)), major depressive disorder (MDD) and Parkinson0s disease (PD) (monoamine oxidases: hMAO-A and hMAO-B respectively). 0Brava0 oil exhibited the best inhibitory activity against all enzymes, when they are compared to 0Mansa0 oil: BuChE (IC50 = 245 ± 5 and 591 ± 23 mg.mL-1), 5-LOX (IC50 = 45 ± 7 and 106±14 mg.mL-1), hMAO-A (IC50 = 30 ± 1 and 72 ± 10 mg.mL-1) and hMAO-B (IC50 = 191 ± 8 and 208 ±14 mg.mL-1), respectively. The inhibitory capacity of the phenolic extracts could be associated with the content of secoiridoids, lignans and phenolic acids.This work received financial support from Programa de Cooperación Interreg V-A España—Portugal (POCTEP) 2014–2020 (projects Ref.: 0181_NANOEATERS_01_E and Ref: 0377_IBERPHENOL_6_E)

    Accuracy and the role of experience in dynamic computer guided dental implant surgery : an in-vitro study

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    To compare the accuracy of implant placement using the conventional freehand method and a dynamic navigation system; to assess the role of the surgeon?s experience in implant placement using these two methods. A randomized in-vitrostudy was conducted. Six resin mandible models and 36 implants were used. Two researchers with differing clinical experience (novice and experienced) placed implants using either the Navident dynamic navigation system (navigation group) or the conventional freehand method (freehand group). Accuracy was measured by overlaying the real position in the postoperative CBCT on the virtual presurgical placement of the implant in a CBCT image. Descriptive and bivariate analyses of the data were performed. The navigation group showed significantly higher accuracy for all the variables studied except 3D entry and depth deviation. This system significantly enhanced the accuracy of the novice professional in several outcome variables in comparison with the freehand implant placement method. However, when the implants were placed by the experienced clinician the dynamic navigation system only improved angulation deviation. Significant differences were found between the 2 professionals when the freehand method was employed. Similar deviations were observed for the implants placed with the navigation system. Dynamic computer assisted surgery systems allow more accurate implant placement in comparison with the conventional freehand method, regardless of the surgeon?s experience. However, this system seems to offer more advantages to novice professionals, since it allows them to reduce their deviations significantly and achieve similar results to those of experienced clinicians
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