139 research outputs found

    The singapore convention and the international commercial mediation agreements

    Get PDF
    The Singapore Convention on International Settlement Agreements resulting from mediation represents a milestone in the determined promotion of this dispute resolution mechanism and puts an end to the absence of a harmonized legal framework to regulate this issue. The most significant advance is that it gives a new legal status to the agreements resulting from international commercial mediation, which become directly enforceable in all the States that ratify the Convention. In this context, the objective of this work is to analyze the key issues of the Singapore Convention, highlighting its lights and shadows, and assess what repercussions the adherence to said normative instrument would have on the Spanish legal system. © 2021 Asociacion Espanola de Profesores de Derecho internacional y Relaciones internacionales. All rights reserved.harmonized legal framework to regulate this issue. The most significant advance is that it gives a new legal status to the agreements resulting from international commercial mediation, which become directly enforceable in all the States that ratify the Convention. In this context, the objective of this work is to analyze the key issues of the Singapore Convention, highlighting its lights and shadows, and assess what repercussions the adherence to said normative instrument would have on the Spanish legal system

    Frecuencia del consumo de drogas legales: Diferencias de edad en la adolescencia

    Get PDF
    El consumo de drogas es especialmente relevante por sus efectos negativos sobre la salud psicofísica y el funcionamiento social de los jóvenes. El objetivo de este estudio fue analizar las diferencias de edad respecto a las frecuencias de consumo de alcohol y tabaco en una muestra de 354 escolares (50.85% varones) de 12 a 18 años (M = 14.66; DT = 1.08) que cumplimentaron el Questionnarie about Consume of Alcohol and Tobacco (TNT). Los resultados muestran que el 82.4% de los adolescentes ha consumido bebidas alcohólicas en alguna ocasión y el 25.6% es consumidor actualmente. Respecto al consumo de tabaco, el 40.4% de estudiantes afirma haber fumado en alguna ocasión, siendo consumidores actuales el 8.2%. Asimismo, se hallaron diferencias estadísticamente significativas entre la adolescencia temprana y tardía, observándose un aumento sustancial del consumo actual de ambas sustancias con la edad. Estos resultados resaltan la importancia de la variable edad a la hora de planificar medidas preventivas y de promoción de la salud en población adolescente

    Postural evaluation and balance analysis in nordic skiing beginners

    Full text link
    Se trata de un estudio de diseño transversal con evaluación del control postural antes-después de un curso de iniciación al esquí nórdico (5 jornadas, 6h/día), a un grupo experimental de 25 sujetos, participantes de la formación, y un grupo control de 8 sujetos. Se pretende evaluar el efecto de un entrenamiento inicial de esquí nórdico sobre el control postural en jóvenes deportistas. La estabilidad corporal se evaluó por medio de un test estabilométrico, calculando el área de desviación del centro de presiones por medio de una plataforma de fuerzas con sensores electrónicos. No se aprecian diferencias significativas en el grado de mejora del equilibrio entre el grupo experimental y el grupo control. Nuevos estudios con una mayor exigencia en la formación en esquí nórdico y un mayor número de sujetos en el grupo control son requeridosCross-sectional study with evaluation of postural control before and after a course of initiation to Nordic skiing (5 days, 6 hours per day). The sample consisted of an experimental group of 25 subjects participated in the training and a control group of 8 subjects. It is intended to evaluate the effect of initial training of Nordic skiing on postural control in young athletes. The physical stability was evaluated by a stabilometric test, calculating the deviation of the area of the center of pressures by the use of a force platform with electronic sensors. No significant differences were observed in the degree of improvement of the balance between the experimental group and the control group. New studies with a greater emphasis on training in Nordic skiing and a greater number of subjects in the control group are require

    Calidad del agua residual urbana depurada para su uso en riego. Experimento de invernadero

    Get PDF
    El agua residual urbana depurada proveniente de la planta depuradora de argiva (Granada) puede ser utilizada, sin restricciones, para el riego de la mayoría de los cultivos, ya que su contenido en sales, elementos tóxicos y sólidos en suspensión es escaso. Su aporte, en un experimento de invernadero, ál sistema suelo-planta provocó un aumento de la conductivdad del extracto de saturación del suelo y de los niveles de Na y B en suelo y planta, aunque ellos no resultaron perjudiciales para un cultivo de tomate.Reclaimed municipal wastewater from the argiva treatment plant can be used, without restrictions, for agricultural irrigation, because of its low concentracion of salts, toxic elements and suspended solids. Its application to the soil-plant system in a greenhouse experiment increased electrical conductivity of the saturated extract of the soil, and levels of Na and B in soil anct plant However, no adverse effect was observed in a tomato crop

    Calidad del agua residual urbana depurada para su uso en riego. Experimento de invernadero

    Get PDF
    Reclaimed municipal wastewater from the argiva treatment plant can be used, without restrictions, for agricultural irrigation, because of its low concentracion of salts, toxic elements and suspended solids. Its application to the soil-plant system in a greenhouse experiment increased electrical conductivity of the saturated extract of the soil, and levels of Na and B in soil anct plant. However, no adverse effect was observed in a tomato crop.El agua residual urbana depurada proveniente de la planta depuradora de Ă“rgiva (Granada) puede ser utilizada, sin restricciones, para el riego de la mayorĂ­a de los cultivos, ya que su contenido en sales, elementos tĂłxicos y sĂłlidos en suspensiĂłn es escaso. Su aporte, en un experimento de invernadero, al sistema suelo-planta provocĂł un aumento de la conductivdad del extracto de saturaciĂłn del suelo y de los niveles de Na y B en suelo y planta, aunque ellos no resultaron perjudiciales para un cultivo de tomate

    Mobility assessment in people with Alzheimer disease using smartphone sensors

    Full text link
    [EN] Background Understanding the functional status of people with Alzheimer Disease (AD), both in a single (ST) and cognitive dual task (DT) activities is essential for identifying signs of early-stage neurodegeneration. This study aims to compare the performance quality of several tasks using sensors embedded in an Android device, among people at different stages of Alzheimer and people without dementia. The secondary aim is to analyze the effect of cognitive task performance on mobility tasks. Methods This is a cross-sectional study including 22 participants in the control group (CG), 18 in the group with mild AD and 22 in the group with moderate AD. They performed two mobility tests, under ST and DT conditions, which were registered using an Android device. Postural control was measured by medial-lateral and anterior-posterior displacements of the COM (MLDisp and APDisp, respectively) and gait, with the vertical and medial-lateral range of the COM (Vrange and MLrange). Further, the sit-to-stand (PStand) and turning and sit power (PTurnSit), the total time required to complete the test and the reaction time were measured. Results There were no differences between the two AD stages either for ST or DT in any of the variables (p > 0.05). Nevertheless, people at both stages showed significantly lower values of PStand and PTurnSit and larger Total time and Reaction time compared to CG (p < 0.05). Further, Vrange is also lower in CDR1G than in CG (p < 0.05). The DT had a significant deleterious effect on MLDisp in all groups (p < 0.05) and on APDisp only in moderate AD for DT. Conclusions Our findings indicate that AD patients present impairments in some key functional abilities, such as gait, turning and sitting, sit to stand, and reaction time, both in mild and moderate AD. Nevertheless, an exclusively cognitive task only influences the postural control in people with AD.This work was funded by the Spanish Government, Secretaria de Estado de Investigacion, Desarrollo e Innovacion, and co-financed by EU FEDER funds (Grant DPI2013-44227-R). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Serra-Añó, P.; Pedrero, J.; Hurtado-Abellán, J.; Inglés, M.; Espí-López, G.; Lopez Pascual, J. (2019). Mobility assessment in people with Alzheimer disease using smartphone sensors. Journal of NeuroEngineering and Rehabilitation. 16(1). https://doi.org/10.1186/s12984-019-0576-yS161Association A. 2017 Alzheimer’s disease facts and figures. Alzheimers Dement. 2017;13(4):325–73.Harrington MG, Chiang J, Pogoda JM, Gomez M, Thomas K, Marion SD, et al. Executive function changes before memory in preclinical Alzheimer’s pathology: a prospective, cross-sectional, case control study. PLoS One. 2013;8(11):e79378.Buckner RL. Memory and executive function in aging and AD: multiple factors that cause decline and reserve factors that compensate. Neuron. 2004;44(1):195–208.Beauchet O, Launay CP, Barden J, Liu-Ambrose T, Chester VL, Szturm T, et al. Association between falls and brain subvolumes: results from a cross-sectional analysis in healthy older adults. Brain Topogr. 2017;30(2):272–80.Yogev-Seligmann G, Hausdorff JM, Giladi N. The role of executive function and attention in gait. Mov Disord Off J Mov Disord Soc. 2008;23(3):329–42.Verghese J, Wang C, Holtzer R, Lipton R, Xue X. Quantitative gait dysfunction and risk of cognitive decline and dementia. J Neurol Neurosurg Psychiatry. 2007;78(9):929–35.Beauchet O, Annweiler C, Callisaya ML, De Cock A-M, Helbostad JL, Kressig RW, et al. Poor gait performance and prediction of dementia: results from a meta-analysis. J Am Med Dir Assoc. 2016;17(6):482–90.Rucco R, Agosti V, Jacini F, Sorrentino P, Varriale P, De Stefano M, et al. Spatio-temporal and kinematic gait analysis in patients with frontotemporal dementia and Alzheimer’s disease through 3D motion capture. Gait Posture. 2017;52:312–7.de Melo Coelho FG, Stella F, de Andrade LP, Barbieri FA, Santos-Galduróz RF, Gobbi S, et al. Gait and risk of falls associated with frontal cognitive functions at different stages of Alzheimer’s disease. Aging Neuropsychol Cogn. 2012;19(5):644–56.Beauchet O, Allali G, Launay C, Herrmann FR, Annweiler C. Gait variability at fast-pace walking speed: a biomarker of mild cognitive impairment? J Nutr Health Aging. 2013;17(3):235–9.Ganz DA, Bao Y, Shekelle PG, Rubenstein LZ. Will my patient fall? JAMA. 2007;297(1):77–86.Egerton T, Danoudis M, Huxham F, Iansek R. Central gait control mechanisms and the stride length - cadence relationship. Gait Posture. 2011;34(2):178–82.Baddeley AD, Baddeley HA, Bucks RS, Wilcock GK. Attentional control in Alzheimer’s disease. Brain. 2001;124(8):1492–508.Dubois B, Feldman HH, Jacova C, DeKosky ST, Barberger-Gateau P, Cummings J, et al. Research criteria for the diagnosis of Alzheimer’s disease: revising the NINCDS–ADRDA criteria. Lancet Neurol. 2007;6(8):734–46.Coubard OA, Ferrufino L, Boura M, Gripon A, Renaud M, Bherer L. Attentional control in normal aging and Alzheimer’s disease. Neuropsychology. 2011;25(3):353–67.Ries JD, Echternach JL, Nof L, Gagnon BM. Test-retest reliability and minimal detectable change scores for the timed “up & go” test, the six-minute walk test, and gait speed in people with Alzheimer disease. Phys Ther. 2009;89(6):569–79.Tamura K, Kocher M, Finer L, Murata N, Stickley C. Reliability of clinically feasible dual-task tests: expanded timed get up and go test as a motor task on young healthy individuals. Gait Posture. 2018;60:22–7.Muir SW, Speechley M, Wells J, Borrie M, Gopaul K, Montero-Odasso M. Gait assessment in mild cognitive impairment and Alzheimer’s disease: the effect of dual-task challenges across the cognitive spectrum. Gait Posture. 2012;35(1):96–100.Morris JC. The clinical dementia rating (CDR): current version and scoring rules. Neurology. 1993;43(11):2412–4.Ansai JH, Andrade LP, Rossi PG, Takahashi AC, Vale FA, Rebelatto JR. Gait, dual task and history of falls in elderly with preserved cognition, mild cognitive impairment, and mild Alzheimer’s disease. Braz J Phys Ther. 2017;21(2):144–51.Herrero MJ, Blanch J, Peri JM, De Pablo J, Pintor L, Bulbena A. A validation study of the hospital anxiety and depression scale (HADS) in a Spanish population. Gen Hosp Psychiatry. 2003;25(4):277–83.Bower ES, Wetherell JL, Merz CC, Petkus AJ, Malcarne VL, Lenze EJ. A new measure of fear of falling: psychometric properties of the fear of falling questionnaire revised (FFQ-R). Int Psychogeriatr. 2015;27(7):1121–33.López-Pascual J, Hurtado AJ, Inglés M, Espí-López G, Serra-Añó P. P 151-reliability of variables measured with an android device during a modified timed up and go test in patients with Alzheimer’s disease. Gait Posture. 2018;65:484.Nishiguchi S, Yamada M, Nagai K, Mori S, Kajiwara Y, Sonoda T, et al. Reliability and validity of gait analysis by android-based smartphone. Telemed J E Health. 2012;18(4):292–6.Zijlstra W, Hof AL. Assessment of spatio-temporal gait parameters from trunk accelerations during human walking. Gait Posture. 2003;18(2):1–10.Ribeiro JG, De Castro JT, Freire JL. Using the FFT-DDI method to measure displacements with piezoelectric, resistive and ICP accelerometers. In: Conference and exposition on structural dynamics. Rio de Janeiro: Citeseer; 2003.Prieto TE, Myklebust JB, Hoffmann RG, Lovett EG, Myklebust BM. Measures of postural steadiness: differences between healthy young and elderly adults. Biomed Eng IEEE Trans On. 1996;43(9):956–66.Esser P, Dawes H, Collett J, Howells K. IMU: inertial sensing of vertical CoM movement. J Biomech. 2009;42(10):1578–81.Gordon KE, Ferris DP, Kuo AD. Metabolic and mechanical energy costs of reducing vertical center of mass movement during gait. Arch Phys Med Rehabil. 2009;90(1):136–44.Gard SA, Miff SC, Kuo AD. Comparison of kinematic and kinetic methods for computing the vertical motion of the body center of mass during walking. Hum Mov Sci. 2004;22(6):597–610.Weinert-Aplin RA, Twiste M, Jarvis HL, Bennett AN, Baker RJ. Medial-lateral centre of mass displacement and base of support are equally good predictors of metabolic cost in amputee walking. Gait Posture. 2017;51:41–6.Chen S-H, Lo O-Y, Kay T, Chou L-S. Concurrent phone texting alters crossing behavior and induces gait imbalance during obstacle crossing. Gait Posture. 2018;62:422–5.Lindemann U, Claus H, Stuber M, Augat P, Muche R, Nikolaus T, et al. Measuring power during the sit-to-stand transfer. Eur J Appl Physiol. 2003;89(5):466–70.Manckoundia P, Mourey F, Pfitzenmeyer P, Papaxanthis C. Comparison of motor strategies in sit-to-stand and back-to-sit motions between healthy and Alzheimer’s disease elderly subjects. Neuroscience. 2006;137(2):385–92.Christ BU, Combrinck MI, Thomas KG. Both reaction time and accuracy measures of Intraindividual variability predict cognitive performance in Alzheimer’s disease. Front Hum Neurosci. 2018;12:124–35.Vienne A, Barrois RP, Buffat S, Ricard D, Vidal P-P. Inertial sensors to assess gait quality in patients with neurological disorders: a systematic review of technical and analytical challenges. Front Psychol. 2017;8:817.Wang W-H, Chung P-C, Yang G-L, Lin C-W, Hsu Y-L, Pai M-C. An inertial sensor based balance and gait analysis system. In: 2015 IEEE International Symposium on Circuits and Systems (ISCAS): Rio de Janeiro: IEEE; 2015. p. 2636–9.Wüest S, Masse F, Aminian K, Gonzenbach R, De Bruin ED. Reliability and validity of the inertial sensor-based timed “up and go” test in individuals affected by stroke. J Rehabil Res Dev. 2016;53(5):599–610.Nguyen H, Lebel K, Boissy P, Bogard S, Goubault E, Duval C. Auto detection and segmentation of daily living activities during a timed up and go task in people with Parkinson’s disease using multiple inertial sensors. J Neuroengineering Rehabil. 2017;14(1):26.Ansai JH, de Andrade LP, Rossi PG, Nakagawa TH, Vale FAC, Rebelatto JR. Differences in timed up and go subtasks between older people with mild cognitive impairment and mild Alzheimer’s disease. Mot Control. 2018;27:1–12.Eggermont LH, Gavett BE, Volkers KM, Blankevoort CG, Scherder EJ, Jefferson AL, et al. Lower-extremity function in cognitively healthy aging, mild cognitive impairment, and Alzheimer’s disease. Arch Phys Med Rehabil. 2010;91(4):584–8.Leandri M, Cammisuli S, Cammarata S, Baratto L, Campbell J, Simonini M, et al. Balance features in Alzheimer’s disease and amnestic mild cognitive impairment. J Alzheimers Dis. 2009;16(1):113–20.Nakamura T, Meguro K, Yamazaki H, Okuzumi H, Tanaka A, Horikawa A, et al. Postural and gait disturbance correlated with decreased frontal cerebral blood flow in Alzheimer disease. Alzheimer Dis Assoc Disord. 1997;11(3):132–9.Cavagna GA, Margaria R. Mechanics of walking. J Appl Physiol. 1966;21(1):271–8.Ganea R, Paraschiv-Ionescu A, Büla C, Rochat S, Aminian K. Multi-parametric evaluation of sit-to-stand and stand-to-sit transitions in elderly people. Med Eng Phys. 2011;33(9):1086–93.Cameron DM, Bohannon RW, Garrett GE, Owen SV, Cameron DA. Physical impairments related to kinetic energy during sit-to-stand and curb-climbing following stroke. Clin Biomech. 2003;18(4):332–40.McGuinness B, Barrett SL, Craig D, Lawson J, Passmore AP. Attention deficits in Alzheimer’s disease and vascular dementia. J Neurol Neurosurg Psychiatry. 2010;81(2):157–9.Phillips M, Rogers P, Haworth J, Bayer A, Tales A. Intra-individual reaction time variability in mild cognitive impairment and Alzheimer’s disease: gender, processing load and speed factors. PLoS One. 2013;8(6):e65712

    Empirical Evidence of Stakeholder Management in Sports Clubs: The Impact of the Board of Directors

    Get PDF
    A major challenge for non-profit sports organizations is how to raise resources from their stakeholders. The present article empirically assesses how the management of stakeholders can affect the resources raised by non-profit sports organizations. The moderating effect of particular characteristics of the Board of Directors is also considered. Evidence is obtained by surveying a large sample of sports clubs from Catalonia, Spain. Results indicate how the quality of relations between sports clubs and their external stakeholders relate positively to the financial and non-financial contributions of stakeholders. A club's financial resources are also positively linked to the amount of time its Board of Directors is willing to invest. Our results represent a major contribution to the management of sports clubs, demonstrating that sports organizations should prioritize the management of their external stakeholders

    PTEN Mediates the Antioxidant Effect of Resveratrol at Nutritionally Relevant Concentrations

    Get PDF
    Introduction. Antioxidant properties of resveratrol have been intensively studied for the last years, both in vivo and in vitro. Its bioavailability after an oral dose is very low and therefore it is very important to make sure that plasma concentrations of free resveratrol are sufficient enough to be active as antioxidant. Aims. In the present study, using nutritionally relevant concentrations of resveratrol, we aim to confirm its antioxidant capacity on reducing peroxide levels and look for the molecular pathway involved in this antioxidant effect. Methods. We used mammary gland tumor cells (MCF-7), which were pretreated with different concentrations of resveratrol for 48 h, and/or a PTEN inhibitor (bpV: bipy). Hydrogen peroxide levels were determined by fluorimetry, PTEN levels and Akt phosphorylation by Western Blotting, and mRNA expression of antioxidant genes by real-time reverse transcriptase-polymerase chain reaction (RT-PCR). Results. Resveratrol treatment for 48 h lowered peroxide levels in MCF-7, even at low nutritional concentrations (1 nM). This effect was mediated by the activation of PTEN/Akt pathway, which resulted in an upregulation of catalase and MnSOD mRNA levels. Conclusion. Resveratrol acts as an antioxidant at nutritionally relevant concentrations by inducing the expression of antioxidant enzymes, through a mechanism involving PTEN/Akt signaling pathway

    Análisis de Invarianza y Diferencias de Medias Latentes Entre Adolescentes Americanos, Españoles y Chinos Usando la Escala de Ansiedad Social para Adolescentes (SAS-A)

    Get PDF
    Background: Social anxiety is one of the most prevalent disorders among adolescents (Stein et al., 2017). The main aim of this study was to analyze the equivalence of scores on the Social Anxiety Scale for Adolescents (SAS-A) using structural equation modeling and identify differences in latent means of social anxiety in China, Spain, and the USA. Method: Random sampling was used to recruit participants, which included 536 Chinese (46% girls), 1,178 Spanish (55.3% girls) and 866 North American (55.1% girls) adolescents. The participants’ ages ranged between 14 and 17 years old. Results: The SAS-A three-factor correlated model of social anxiety remained invariant between the Spanish and North American adolescents, but results could not be replicated in the Chinese adolescents [M2 = ΔS-Bχ2 (Δdf, p) = 4732.56 (36, < .01)]. Analyses of latent differences between Spain and the USA showed that Spanish adolescents had higher scores than North Americans for Fear of Negative Evaluation (TS = -9.630; d = .44) and for Social Avoidance and General Anxiety towards people (TS = -2.717; d = .12). Conclusions: The results are interpreted according to the cultural traits of individualism-collectivism and self-construal, and practical implications are discussed.Antecedentes: la ansiedad social es uno de los trastornos con mayor prevalencia en adolescentes (Stein et al., 2017). Así, el propósito principal de este estudio fue analizar la invarianza de la Escala de Ansiedad Social para Adolescentes (SAS-A) mediante un modelo de ecuaciones estructurales y examinar las diferencias de medias latentes en ansiedad social en adolescentes de China, España y EE.UU. Método: los participantes se seleccionaron a través de muestreo aleatorio: 534 chinos (46% chicas), 1.178 españoles (55,3% chicas) y 866 norteamericanos (55,1% chicas), con edades comprendidas entre los 14 y 17 años. Resultados: las puntuaciones del modelo de tres factores correlacionados de ansiedad social de la SAS-A resultaron invariantes entre adolescentes españoles y norteamericanos, pero estos resultados no fueron replicados en adolescentes chinos [M2 = ΔS-Bχ2 (Δdf, p) = 4732.56 (36, < .01)]. El análisis de medias latentes entre España y EE.UU. mostró que los adolescentes españoles manifestaban niveles más altos de Miedo ante las evaluaciones negativas (TS = -9.630; d = .44) y Evitación social y ansiedad general hacia las personas (TS = -2.717; d = .12). Conclusiones: estos hallazgos fueron interpretados atendiendo al de individualismo-colectivismo y las concepciones culturales de la propia persona, analizando sus implicaciones prácticas
    • …
    corecore