1,241 research outputs found

    El engagement y su impacto en el desempeño laboral del personal administrativo en una institución educativa superior privada – Lima Norte, Lima – Perú, 2018

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    El estudio busca determinar el impacto que genera la aplicación del engagement en las actividades diarias que realizan las personas dentro de sus labores como personal administrativo en una institución educativa superior privada, sabiendo que la organización educativa cuenta con diversas áreas funcionales que se relacionan entre sí para brindar un servicio de asistencia operativa a los más de 8 mil estudiantes en 17 carreras que tiene la institución en dicha sede. Los indicadores fueron seleccionados y comparados para explicar cómo el engagement se relaciona con las actividades diarias que desempeña laboralmente una persona dentro de su organización, asimismo el papel que deben cumplirlos líderes para dicho fin. Se considera el estudio de las teorías planteadas por Idalberto Chiavenato que busca relacionar es estado emotivo afectivo y cognitivo de forma positiva siendo estos determinados por los niveles de energía vigor y dedicación siendo estos las dimensiones que miden la variable engagement durante el desarrollo de las actividades laborales, analizando la organización, como esta se encuentra posicionada en el mercado hasta la verificación de la información que nos proporciona la empresa. Para realizar el análisis estadístico se empleó los resultados de la recolección de datos del instrumento denominado encuesta de clima laboral, entrevista con directivos empresariales y la aplicación de la encuesta a los colaboradores. Por lo antes indicado, esta investigación es del tipo cualitativo con un alcance descriptivo, correlacional - causal siendo su diseño no experimental de corte trasversal, por ende, se busca determinar el nivel de engagement y el impacto de dicho resultado tiene en el desempeño de sus colaboradores siendo este uno de sus resultados. Finalmente, será trascendente para las empresas contar con empleados engaged emocionalmente involucrados y comprometidos con su trabajo, ya que ofrecen mayores posibilidades de hacer contribuciones positivas a la organización.Trabajo de investigaciónCampus Lima Centr

    Evaluación de la transferencia de la formación permanente: análisis de una experiencia de talleres sobre astronomía

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    In the framework of a European project to bring astronomy near to children, several permanent teachers training activities were developed. These actions included workshops with teachers from various stages of the educational system.Postprint (published version

    Sol y Eclipses: Actividades y modelos para explicar los eclipses

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    En esta publicación se presentan algunos modelos para explicar los eclipses y sus tipos. Como concepto previo se introducen las fases de la Luna para poder introducir correctamente los eclipses de Sol y de Luna. También se utilizan los eclipses para determinar distancias y diámetros en el sistema Tierra-Luna-Sol usando los trabajos de Aristarco y Eratóstenes desarrollaron hace más de 2000 años.Fil: Ros, Rosa María. Universidad Politécnica de Catalunya; EspañaFil: Garcia, Beatriz Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Tecnología en Detección y Astropartículas. Itedam - Subsede del Instituto de Tecnología en Detección y Astropartículas Mendoza | Comisión Nacional de Energía Atómica. Instituto de Tecnología en Detección y Astropartículas. Itedam - Subsede del Instituto de Tecnología en Detección y Astropartículas Mendoza | Universidad Nacional de San Martin. Instituto de Tecnología en Detección y Astropartículass. Itedam - Subsede del Instituto de Tecnología en Detección y Astropartículas Mendoza; Argentin

    Academic-manager: sistema para a gestão escolar

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    This report was made with the intent of describing and presenting methodologies, tools and technologies used to develop my project, in curricular internship context and to finish the Master’s degree in Computer Science and Engineering. With this document I also intend to expose my experience during the internship term. The main goal of achieving a curricular internship arose from the need of putting into practice the knowledge acquired during the bachelor’s degree and master’s degree, to live a great experience outside the classroom, contact and meet the world of work and develop my areas of expertise. Throughout this report, I will describe the entire process of developing a school management system tailored to Colégio Guadalupe’s needs, as well as explain the techniques, methodologies and tools used to accomplish the main goal and, finally, I will present the results achieved. In this project there were addressed areas such as Software Engineering and techniques for Managing Software projects.Este relatório foi feito com a finalidade de descrever e apresentar metodologias, ferramentas e tecnologias utilizadas no desenvolvimento do projeto, no âmbito de estágio curricular para a conclusão do curso do mestrado em Engenharia Informática. Neste documento também pretendo expor a minha experiência vivida durante a duração do mesmo. O objetivo de realizar um estágio curricular surgiu da necessidade de pôr em prática os conhecimentos adquiridos durante o percurso curricular da licenciatura e do mestrado, viver uma grande experiência fora da sala de aula, contatar e conhecer o âmbito laboral e desenvolver as minhas áreas de conhecimento. Ao longo deste relatório, irei descrever todo o processo de desenvolvimento de um sistema para a gestão escolar desenvolvido à medida das necessidades do Colégio Guadalupe, assim como também explicarei as técnicas, metodologias e ferramentas utilizadas para cumprir com o objetivo principal e, finalmente, apresentarei os resultados obtidos. Neste projeto foram abordadas áreas como a Engenharia de Software e técnicas para a gestão projetos de Software

    A database and digital signal processing framework for the perceptual analysis of voice quality

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    Bermúdez de Alvear RM, Corral J, Tardón LJ, Barbancho AM, Fernández Contreras E, Rando Márquez S, Martínez-Arquero AG, Barbancho I. A database and digital signal processing framework for the perceptual analysis of voice quality. Pan European Voice Conferenc: PEVOC 11 Abstract Book. Aug. 31-Sept.2, 2015.Introduction. Clinical assessment of dysphonia relies on perceptual as much as instrumental methods of analysis [1]. The perceptual auditory analysis is potentially subject to several internal and external sources of bias [2]. Furthermore acoustic analyses which have been used to objectively characterize pathological voices are likely to be affected by confusion variables such as the signal processing or the hardware and software specifications [3]. For these reasons the poor correlation between perceptual ratings and acoustic measures remains to be a controversial matter [4]. The availability of annotated databases of voice samples is therefore of main importance for clinical and research purposes. Databases to perform digital processing of the vocal signal are usually built from English speaking subjects’ sustained vowels [5]. However phonemes vary from one language to another and to the best of our knowledge there are no annotated databases with Spanish sustained vowels from healthy or dysphonic voices. This work shows our first steps to fill in this gap. For the aim of aiding clinicians and researchers in the perceptual assessment of voice quality a two-fold objective was attained. On the one hand a database of healthy and disordered Spanish voices was developed; on the other an automatic analysis scheme was accomplished on the basis of signal processing algorithms and supervised learning machine techniques. Material and methods. A preliminary annotated database was created with 119 recordings of the sustained Spanish /a/; they were perceptually labeled by three experienced experts in vocal quality analysis. It is freely available under Links in the ATIC website (www.atic.uma.es). Voice signals were recorded using a headset condenser cardioid microphone (AKG C-544 L) positioned at 5 cm from the speaker’s mouth commissure. Speakers were instructed to sustain the Spanish vowel /a/ for 4 seconds. The microphone was connected to a digital recorder Edirol R-09HR. Voice signals were digitized at 16 bits with 44100 Hz sampling rate. Afterwards the initial and last 0.5 second segments were cut and the 3 sec. mid portion was selected for acoustic analysis. Sennheiser HD219 headphones were used by judges to perceptually evaluate voice samples. To label these recordings raters used the Grade-Roughness-Breathiness (GRB) perceptual scale which is a modified version of the original Hirano’s GRBAS scale, posteriorly modified by Dejonckere et al., [6]. In order to improve intra- and inter-raters’ agreement two types of modifications were introduced in the rating procedure, i.e. the 0-3 points scale resolution was increased by adding subintervals to the standard 0-3 intervals, and judges were provided with a written protocol with explicit definitions about the subintervals boundaries. By this way judges could compensate for the potential instability that might occur in their internal representations due to the perceptual context influence [7]. Raters’ perceptual evaluations were simultaneously performed by means of connecting the Sennheiser HD219 headphones to a multi-channel headphone preamp Behringer HA4700 Powerplay Pro-XL. The Yin algorithm [8] was selected as initial front-end to identify voiced frames and extract their fundamental frequency. For the digital processing of voice signals some conventional acoustic parameters [6] were selected. To complete the analysis the Mel-Frequency Cepstral Coefficients (MFCC) were further calculated because they are based on the auditory model and they are thus closer to the auditory system response than conventional features. Results. In the perceptual evaluation excellent intra-raters agreement and very good inter-raters agreement were achieved. During the supervised machine learning stage some conventional features were found to attain unexpected low performance in the classification scheme selected. Mel Frequency Cepstral Coefficients were promising for assorting samples with normal or quasi-normal voice quality. Discussion and conclusions. Despite it is still small and unbalanced the present annotated data base of voice samples can provide a basis for the development of other databases and automatic classification tools. Other authors [9, 10, 11] also found that modeling the auditory non-linear response during signal processing can help develop objective measures that better correspond with perceptual data. However highly disordered voices classification remains to be a challenge for this set of features since they cannot be correctly assorted by either conventional variables or the auditory model based measures. Current results warrant further research in order to find out the usability of other types of voice samples and features for the automatic classification schemes. Different digital processing steps could be used to improve the classifiers performance. Additionally other types of classifiers could be taken into account in future studies. Acknowledgment. This work was funded by the Spanish Ministerio de Economía y Competitividad, Project No. TIN2013-47276-C6-2-R has been done in the Campus de Excelencia Internacional Andalucía Tech, Universidad de Málaga. References [1] Carding PN, Wilson JA, MacKenzie K, Deary IJ. Measuring voice outcomes: state of the science review. The Journal of Laryngology and Otology 2009;123,8:823-829. [2] Oates J. Auditory-perceptual evaluation of disordered voice quality: pros, cons and future directions. Folia Phoniatrica et Logopaedica 2009;61,1:49-56. [3] Maryn et al. Meta-analysis on acoustic voice quality measures. J Acoust Soc Am 2009; 126, 5: 2619-2634. [4] Vaz Freitas et al. Correlation Between Acoustic and Audio-Perceptual Measures. J Voice 2015;29,3:390.e1 [5] “Multi-Dimensional Voice Program (MDVP) Model 5105. Software Instruction Manual”, Kay PENTAX, A Division of PENTAX Medical Company, 2 Bridgewater Lane, Lincoln Park, NJ 07035-1488 USA, November 2007. [6] Dejonckere PH, Bradley P, Clemente P, Cornut G, Crevier-Buchman L, Friedrich G, Van De Heyning P, Remacle M, Woisard V. A basic protocol for functional assessment of voice pathology, especially for investigating the efficacy of (phonosurgical) treatments and evaluating new assessment techniques. Guideline elaborated by the Comm. on Phoniatrics of the European Laryngological Society (ELS). Eur Arch Otorhinolaryngol 2001;258:77–82. [7] Kreiman et al. Voice Quality Perception. J Speech Hear Res 1993;36:21-4 [8] De Cheveigné A, Kawahara H. YIN, a fundamental frequency estimator for speech and music. J. Acoust. Soc. Amer. 202; 111,4:1917. [9] Shrivastav et al. Measuring breathiness. J Acoust Soc Am 2003;114,4:2217-2224. [10] Saenz-Lechon et al. Automatic Assessment of voice quality according to the GRBAS scale. Eng Med Biol Soc Ann 2006;1:2478-2481. [11] Fredouille et al. Back-and-forth methodology for objective voice quality assessment: from/to expert knowledge to/from automatic classification of dysphonia. EURASIP J Appl Si Pr 2009.Campus de Excelencia Internacional Andalucía Tech, Universidad de Málaga. Ministerio de Economía y Competitividad, Projecto No. TIN2013-47276-C6-2-R

    Substantial improvements not seen in health behaviors following corner store conversions in two Latino food swamps.

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    BackgroundThe effectiveness of food retail interventions is largely undetermined, yet substantial investments have been made to improve access to healthy foods in food deserts and swamps via grocery and corner store interventions. This study evaluated the effects of corner store conversions in East Los Angeles and Boyle Heights, California on perceived accessibility of healthy foods, perceptions of corner stores, store patronage, food purchasing, and eating behaviors.MethodsHousehold data (n = 1686) were collected at baseline and 12- to 24-months post-intervention among residents surrounding eight stores, three of which implemented a multi-faceted intervention and five of which were comparisons. Bivariate analyses and logistic and linear regressions were employed to assess differences in time, treatment, and the interaction between time and treatment to determine the effectiveness of this intervention.ResultsImprovements were found in perceived healthy food accessibility and perceptions of corner stores. No changes were found, however, in store patronage, purchasing, or consumption of fruits and vegetables.ConclusionsResults suggest limited effectiveness of food retail interventions on improving health behaviors. Future research should focus on other strategies to reduce community-level obesity

    Soundscape Evaluation of a Heritage Event in an Open Environment: The Water Tribunal of the Plain of Valencia (Spain)

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    [EN] The acoustic evaluation of indoor environments is common in the application of virtual acoustics. In addition, in the study of cultural heritage buildings, it is a useful tool, but it is not so common when describing the acoustic environment in intangible cultural heritage events and even in outdoor environments. In this paper, the acoustic environment of the Water Tribunal of the Plain of Valencia (Spain) is studied. It is analyzed from a soundscape perspective, characterizing the sound source and evaluating it within relation to the environment and evaluating its subjective response. With the research carried out, it has been obtained, on the one hand, a complete study of the acoustics of the environment of the Water Tribunal and, on the other, an enhancement of the Valencian tangible and intangible heritage.This research was partially funded by Spanish Ministry of Science, Innovation and Universities, grant number BIA2016-76957-C3-3-R and by the Universitat de Valencia with the grant UV-INV-AE-1550319.Díaz-Rubio, E.; Segura-Garcia, J.; Fayos-Jordan, R.; Cerdá, S.; Cibrián, RM.; Giménez Pérez, A. (2022). Soundscape Evaluation of a Heritage Event in an Open Environment: The Water Tribunal of the Plain of Valencia (Spain). Applied Sciences. 12(9):1-17. https://doi.org/10.3390/app1209429211712

    Challenges for the heart failure care: exploratory research with nurses in Ontario

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    Objectives: to observe the implementation of Canadian protocols for patients with heart failure, and identify with nurses, health education aspects. Method: exploratory research in the period from August to December 2013, where the data collection was carried out by observation during the Shadow Experience and interview of Canadian nurses. For data analysis, we used descriptive statistics. Results: 28 patients were observed in the Shadow Experience strategy at different levels of care, and 13 nurses interviewed. In health education, interpersonal contact was the most used strategy (69,23%), treatment was the priority share (76,92%), followed by prevention (30,77%). There are challenges with respect to harmful lifestyle habits, and self-care considered ineffective (38,46%). Conclusion: interpersonal interaction, which involved professionals and Canadian individuals at different levels of care, helped to identify in their implementation, basic actions and challenges for heart failure

    Current Treatment for Carpal Tunnel Syndrome

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    The combination of surgical procedure (open or endoscopic techniques), rehabilitation and antioxidant therapy (Alpha lipoic acid, curcumin) is superior to monotherapies in the prognosis and recovery of patients with this pathology. The prescription of these medications by their mechanisms of action should be allocated prior to decompression surgery and should continue receiving medication during the rehabilitation time. Clinical and electrophysiological follow-ups are required to verify the improvement

    Unravelling the immunomodulatory role of apple phenolic rich extracts on human THP-1- derived macrophages using multiplatform metabolomics

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    Financiado para publicación en acceso aberto: Universidade de Vigo/CISUGApples represent a significant source of dietary phenolic compounds with evidenced anti-inflammatory and immunomodulatory activities. Nevertheless, the effect of the whole apple matrix on human macrophages is unknown. In this context, our study attempts to evaluate the effect of apple-derived phenolic compounds-rich extracts (pulp, peel and leaf) on IL-1β production in THP-1-differentiated macrophages and derived metabolic alterations through untargeted metabolomics. Our results have showed that apple pulp treatment inhibited the release of the pro-inflammatory cytokine IL-1β induced by LPS in THP-1 macrophages by ELISA analysis. Metabolomics demonstrate that different proportions of phenolic compounds led to differential alterations in the metabolism of THP-1 macrophages. Indeed, apple extracts promoted alterations in lipid, carbohydrate, amino acid and vitamins as well as cofactors metabolism. Specifically, leaf extracts were characterized by alteration of galactose metabolism while the extracts derived from the fruit showed predominant alterations in lipids metabolism. All extracts mimicked the response observed under normal conditions in LPS-stimulated macrophages, inhibiting LPS response. Thus, the phenolic enriched extracts from apples will be a good source of natural compounds with a beneficial effect against inflammation, and they may be applied as a food supplement and/or functional ingredient for the treatment of inflammatory diseasesFondo Europeo de Desarrollo Regional (FEDER) | Ref. 0377_IBERPHENOL_6_EFundação para a Ciência e a Tecnologia | Ref. UIDB/50006/2020Fundação para a Ciência e a Tecnologia | Ref. PTDC/SAU-NUT/30448/2017Fundação para a Ciência e a Tecnologia | Ref. SFRH/BPD/86173/201
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