297 research outputs found

    Prevalence, co-occurrence, and predictive factors for musculoskeletal pain among shellfish gatherers

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    [Abstract] The aims of this study are to determine prevalence and co-occurrence of musculoskeletal pain (MSP) among shellfish gatherers and its consequences for the use of medicine, health care, and sickness leave and to investigate predictive factors (sociodemographic, lifestyle, comorbidity) of MSP in five anatomical areas (neck/shoulder/higher back, lower back, elbow/wrist/hand, hip/knee, and leg/ankle/foot). Nine hundred twenty-nine shellfish gatherers (94% women) voluntarily took part in a physiotherapy workshop. A self-administered questionnaire was used to assess MSP and its consequences. Regression models were performed to determine the factors predicting the presence of MSP. The two most frequently self-reported forms of MSP were neck pain (70.9%) and lower back pain (65.5%). Sixty-four percent of respondents reported contact with their family doctor during the last 12 months due to MSP, and most subjects (88.1%) reported MSP in two or more locations. Hip/knee pain was associated with leg/ankle/foot pain (crude odds ratio = 3.14). Logistic regression analysis showed that being female and young is associated with lumbar pain, and being older is associated with pain in all areas of the lower limbs. The number of pain sites a person reported significantly predicted the presence of pain in all the anatomical areas studied. Prevalence of MSP and musculoskeletal comorbidity were high. The study shows that the presence of pain reported in one body area is highly dependent on the total number of painful areas. These findings are consistent with those of similar studies

    Entender la economía a través del arte: un proyecto piloto

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    Fac. de Ciencias Económicas y EmpresarialesFALSEsubmitte

    Un recurso digital al servicio del aprendizaje metacognitivo: un estudio de caso

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    Sin perder de vista la óptica que las tecnologías para el aprendizae y el conocimiento (TAC) brindan, presentamos un recurso digital creado para ser usado en la pizarra digital interactiva (PDI), con el fin de responder a un proceso de aprendizaje y a un quehacer educativo metacognitivos. Se presentan los usos y evaluación de dicho recurso que parte de una investigación que aúna el aprender a aprender y la metacognición en Educación Infantil. El marco teórico y contextual que cerca el recurso nos descubre por un lado la escasez de experiencias con TAC en materia de aprender a aprender; y por otro lado, un alumnado con uso deficitario de estrategias para su aprendizaje. Esto constituye el punto de partida para diseñar, implementar y evaluar un recurso digital con el que se potencie la competencia de aprender a aprender en estas edades. Se describe pues cómo ha sido la experiencia desarrollada y se concluye con un primer avance de los datos observados y su relevancia en el campo de trabajo en que nos situamos

    Biochemical characterization of the amylase activity from the New Haloarchaeal Strain Haloarcula sp. HS isolated in the Odiel Marshlands

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    Alpha-amylases are a large family of α,1-4-endo-glycosyl hydrolases distributed in all kingdoms of life. The need for poly-extremotolerant amylases encouraged their search in extreme environments, where archaea become ideal candidates to provide new enzymes that are able to work in the harsh conditions demanded in many industrial applications. In this study, a collection of haloarchaea isolated from Odiel saltern ponds in the southwest of Spain was screened for their amylase activity. The strain that exhibited the highest activity was selected and identified as Haloarcula sp. HS. We demonstrated the existence in both, cellular and extracellular extracts of the new strain, of functional α-amylase activities, which showed to be moderately thermotolerant (optimum around 60 ◦C), extremely halotolerant (optimum over 25% NaCl), and calcium-dependent. The tryptic digestion followed by HPLC-MS/MS analysis of the partially purified cellular and extracellular extracts allowed to identify the sequence of three alpha-amylases, which despite sharing a low sequence identity, exhibited high three-dimensional structure homology, conserving the typical domains and most of the key consensus residues of α-amylases. Moreover, we proved the potential of the extracellular α-amylase from Haloarcula sp. HS to treat bakery wastes under high salinity conditions.PID2019-109785GB-I00, PID2019-110438RB-C22 -AEI/FEDER, EPIT 2016-17, P18-RT-3154info:eu-repo/semantics/publishedVersio

    Quinoline-based hydrazone derivative as a biocide chemosensor: synthesis and sensing studies

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    Tributyltin (TBT) is an organic biocide used on antifouling paints to avoid biofouling on boats and submersed structures. It is toxic to a variety of aquatic organisms and was banned by the Rotterdam Convention in 1998. TBT sensing is an important issue as the biocide is still affecting aquatic environments as some countries did not sign the convention and are still using it. Currently, TBT monitoring methods are based on sampling and laboratory analysis, which is expensive, time-consuming, and require expert users. Therefore, a new simple and fast TBT sensing method would be of high interest. In this work, a new quinoline-based hydrazone derivative was synthesized by a condensation reaction in 67% yield. The new compound was characterized by the usual spectroscopic and spectrometric techniques. The preliminary chemosensory study of the hydrazone derivative in the presence of TBT in acetonitrile solution resulted in a color change from colorless to red together with the appearance of fluorescence. This interaction was confirmed by spectrophotometric and spectrofluorimetric titrations, which revealed that 17 equivalents of TBT led to the maximum optical signal in terms of fluorescence intensity and absorbance.This research was funded by Fundação para a Ciência e Tecnologia (FCT) and FEDER (European Fund for Regional Development)-COMPETE-QRENEU through the Chemistry Research Centre of the University of Minho (Ref. CQ/UM UID/QUI/00686/2020) as well as a PhD grant to R. P. C. L. Sousa (SFRH/BD/145639/2019)

    Fisioterapia con miofeedback en la transposición muscular del temporal para control de la oclusión ocular

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    [Resumen] En septiembre de 1994 ingresó en nuestra Unidad de la Escuela Universitaria de Fisioterapia de A Coruña una paciente intervenida en diciembre de 1990 de un neurinoma del VIII par, presentando postcirugía una parálisis completa izquierda del VII par, confirmada como total en electromiografía. En enero de 1994 se realiza una transposición muscular del temporal izquierdo con los objetivos de obtener una suspensión dinámica de la comisura bucal y la oclusión ocular durante la masticación. Al ingreso en nuestra Unidad no presentaba control voluntario del orbicular del párpado izquierdo, a pesar de que el masetero y temporal izquierdo, según escala de Lacôte, tenían una graduación de 3+. La paciente no disociaba la oclusión de un párpado con respecto al otro. El objetivo del tratamiento fisioterápico por medio de miofeedback fue el de obtener la oclusión del párpado izquierdo y posibilitar la disociación de ambos párpados, objetivo logrado al cabo de 30 sesiones de tratamiento.[Abstract] In September 1994 a patient was admitted to our unit o/ the School o/ Physical Therapy o/ A Coruña, Spain, after surgery in December 1990 for neuroma o/the VIII cranial pair, confirmed as total by electromyography In January 1994, the left temporal muscle was transposed to obtain dynamic suspension o/ the buccal commissure and ocular occlusion during mastication. At the time o/ admission the patient did not have voluntary controlo/ the left orbicular o/ the left eyelid, although the masseter and left temporal muscles were 3+ on the Lacôte scale. The patient could not dissociate the occlusion ot one eyelid with respect to the other. The purpose o/physical therapy with myofeedback was to obtain the occlusion o/ the left eyelid and dissociation o/ the eyelids. This goal was achieved after 30 treatment sessions

    Cooling Strategies for Greenhouses in Summer: Control of Fogging by Pulse Width Modulation

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    The possibilities for improving the control of greenhouse fogging systems, were studied by comparing several combinations of ventilation cooling techniques, shade screening and low-pressure fogging. The study was divided into three parts: experiments, modelling and simulations. In the first part of the paper, ten combinations of five cooling techniques were tested during the summers of 2002 and 2003 in a 132m2 greenhouse with a steel structure and a single-layer methacrylate cover located in Madrid, Spain. An analysis of variance of the climatic parameters was carried out to determine which combinations produced significant differences in inside temperature or relative humidity. Comparing the values for the inside to outside temperature difference, the combination of a shade screen and above-screen fogging achieved a difference in temperature almost the same as that for under-screen fogging, but the relative humidity was significantly lower. In the second part of the study a dynamic model was developed (2002) and validated (2003). The mean absolute error obtained for inside temperature was similar in the fit and the validation and it was less than 1.5 1C in both cases. The model was used to simulate the inside air temperature for a fog system working without shading, and above and under a shade screen. Control algorithms were developed for reducing system water consumption. In the three cases a simple on/off control with a fixed fogging cycle was compared with a pulse width modulation (PWM) strategy, in which the duration of the fogging pulse was increased as a function of inside temperature. The strategies with PWM applied to the fog system were able to reduce water consumption by 8–15% with respect to the strategies with a fixed fogging cycle

    Evidence in the management of chronic back pain with the McKenzie method

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    [Resumen] Objetivo: Revisar la evidencia científica publicada sobre el método McKenzie en dolor lumbar. Estrategia de búsqueda: Búsqueda en la base de datos Medline, en la página web del Instituto McKenzie y análisis de la evidencia publicada por May y Donelson (2008). Selección de estudios y datos: Se limita la búsqueda a los últimos 5 años. Se realiza una búsqueda inversa y un filtrado manual centrado en extraer resultados estrechamente relacionados con la temática de búsqueda y en función del nivel de evidencia de los artículos. Síntesis de resultados: Se encuentra evidencia sobre diversos aspectos del método McKenzie: fiabilidad interobservador como método exploratorio, especificidad del fenómeno de centralización y eficacia comparado con otros tratamientos. Conclusiones: El método McKenzie presenta eficacia similar a los ejercicios de estabilización y una tendencia favorable comparándolo con los ejercicios de fortalecimiento. El fenómeno de centralización tiene valor pronostico positivo. Presenta una alta fiabilidad como método de exploración.[Abstract] Objective: To review the scientific evidence published on the McKenzie method for back pain. Research strategy: A search was made in the Medline database, and on the McKenzie Institute website, and the evidence published by May and Donelson (2008) was analyzed. Studies and data selection: The search was limited to the last five years. A reverse search and a manual filtering (as a function of the level of evidence) focused on extracting results closely related to the subject under research were performed. Results summary: Evidence on the different aspects of the McKenzie method has been found: inter-examiner reliability as exploratory method, specificity of the centralization phenomenon, and effectiveness compared to other treatments. Conclusions: The McKenzie method has similar effectiveness as that of stabilization exercises with a favorable tendency in comparison with strengthen-building exercises. The centralization phenomenon has a positive prognostic value. The method present high reliability as an exploratory method

    Effects of Transcutaneous Electrical Nerve Stimulation via Peroneal Nerve or Soleus Muscle on Venous Flow: A Randomized Cross-Over Study in Healthy Subjects

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    [Abstract] Background: Transcutaneous electrical nerve stimulation (TENS) is used to prevent venous stasis and thromboembolism. However, best electrostimulation parameters have yet to be established. The aim of the study was to compare the hemodynamic effects and the participants’ relative discomfort of 3 TENS sequences at the maximum tolerated intensity stimulus. Methods: Twenty-four healthy university students (50% male) participated in a cross-over, randomized study. Each participant received 2 TENS sequences on peroneal nerve at 1 and 5 Hz, and the third one on soleus muscle at 5 Hz. Popliteal flow volume (FV) and peak velocity (PV) were measured using Doppler ultrasound and the relative change from basal values was recorded. Discomfort questionnaires -visual analogue scale (VAS) and verbal rating scale (VRS)- were also administered to compare sensations among the three applications. Results: All interventions produced significant hemodynamic responses compared to baseline. Both 5 Hz applications obtained higher FV increments than 1 Hz TENS (P < .001). The muscle application resulted in the lowest PV increment (P < .001). TENS at 5 Hz on nerve location was the worst tolerated, with higher values in VRS (P = .056) and VAS (P = .11), although not significant. Conclusion: TENS at 5 Hz on soleus site may be the most appropriate protocol for enhancing venous return.This research was supported by the Psychosocial and Functional Rehabilitation Research Group, based at the Faculty of Physiotherapy, Universidade da Coruña. In addition, this research has been supported by MINECO grant MTM2014-52876-R and by the Xunta de Galicia (Grupos de Referencia Competitiva ED431C-2016-015 and Centro Singular de Investigación de Galicia ED431G/01), all of them through the ERDF. Funding for this study was provided by the College of Physiotherapists of Galicia (Spain)Xunta de Galicia; ED431C-2016-015Xunta de Galicia; ED431G/0

    Satisfacción e impacto en el aprendizaje de diferentes metodologías aplicadas durante el confinamiento para una materia del Grado de Fisioterapia

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    [Resumen] Se analiza el nivel de satisfacción y de contribución en la adquisición de competencias de diferentes metodologías docentes y recursos de atención personalizada incorporadas durante el curso 2019-20 entre los estudiantes de una materia del Grado de Fisioterapia de la UDC con motivo del estado de alarma por el COVID-19, que obligó a la suspensión de la docencia presencial y a su transformación en docencia online. Las clases magistrales y las prácticas de laboratorio se sustituyeron por videolecciones, apuntes y un portafolio. La atención personalizada se realizó a través del chat, tutorías grupales y correo electrónico. Se utilizó una escala Likert para medir satisfacción y una escala numérica de 0 a 10 para medir el impacto en el aprendizaje. Los resultados indican que los estudiantes valoran positivamente todos los recursos, siendo mayoritaria la respuesta de muy satisfecho/a; y con una puntuación superior a 7 el nivel percibido en la adquisición de competencias en prácticamente todos los recursos. Los apuntes son la metodología con la que muestran mayor satisfacción y la que consideran más útil de cara al aprendizaje. Tras comprobar el efecto de la variable sexo, para algunos de los recursos aplicados, existen diferencias entre hombres y mujeres.[Abstract] The level of satisfaction and contribution in the acquisition of competencies of different teaching methodologies and personalized attention resources incorporated during the 2019-20 academic year among students of a subject of the Degree in Physiotherapy at the UDC is analyzed. The state of alarm for COVID-19, forced the suspension of face-to-face teaching and its transformation into online teaching. Lectures and laboratory practices were replaced by video lessons, notes and a portfolio. The personalized attention was carried out through chat, group tutorials and email. A Likert scale was used to measure satisfaction and a numerical scale from 0 to 10 to measure the impact on learning. The results indicate that the students value all the resources positively, the majority being very satisfied; and the level perceived as facilitators of the acquisition of competences was higher than 7 for each resource. Notes are the methodology with which the students show the greatest satisfaction and the one they consider most useful for learning. After checking the effect of the sex variable, for some of the resources applied, there are differences between men and women.http://hdl.handle.net/2183/2879
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