944 research outputs found

    Disentangling permanent and transitory monetary shocks with a nonlinear Taylor rule

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    This article provides an estimation method to decompose monetary policy innovations into persistent and transitory components using the nonlinear Taylor rule proposed in Andolfatto, Hendry, and Moran (2008) [Are inflation expectations rational? Journal of Monetary Economics, 55, 406–422]. To use the Kalman filter as the optimal signal extraction technique, we use a convenient reformulation for the state equation by allowing expectations to play a significant role in explaining the future time evolution of monetary shocks. This alternative formulation allows us to perform the maximum likelihood estimation for all the parameters involved in the monetary policy as well as to recover conditional probabilities of regime change. Empirical evidence on the US monetary policy making is provided for the period covering 1986-Q1 to 2021-Q2. We compare our empirical estimates with those obtained based on the particle filter. While both procedures lead to similar quantitative and qualitative findings, our approach has much less computational cost

    Asistencia personal: equiparación de derechos y oportunidades. Comparativa entre Suecia y España

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    Con el nacimiento y desarrollo del Movimiento de Vida Independiente, las personas con diversidad funcional tomaron conciencia de sus derechos como ciudadanos. Uno de estos es el derecho a vivir de forma independiente y a ser incluido en la comunidad y para hacerlo realidad es fundamental la asistencia personal. Con la llegada de este movimiento a Europa, y gracias a sus demandas, se han puesto en marcha diferentes iniciativas de asistencia personal y se han aprobado normativas nacionales que la regulan. En este artículo se analizan las políticas públicas sobre asistencia personal que se están implementando en Suecia y su comparación con las existentes en nuestro país

    Tunable crystal structure and proton conductivity of lanthanide nitrilotrismethylphosphonates

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    Metal phosphonates are multifunctional solids with remarkable stability and proton conducting properties owing to their structure is usually composed of extended hydrogen-bond networks that favor proton transfer pathways [1]. Moreover, these properties can be enhanced by appropriate modification of the synthesis conditions [2, 3]. In this communication, a new family of isostructural 2D layered compounds based on lanthanide nitrilotris-methylphosphonates is reported. These compounds have been isolated at room temperature and have the general formula Ln[N(CH2)3(PO3H2)2(PO3H)(H2O)]SO4·2H2O (Ln= Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Yb). The coordination environment of Ln3+ is composed by eight oxygen atoms from three different ligands and two oxygens from bound waters. This connectivity creates positive charged layers connected to sulfate ions through hydrogen-bonds. These compounds show promising proton conductivity with values ranging between 7.6·10-2 and 3.8·10-2 S·cm-1 at 80 °C and 95% RH and low activation energy corresponding to Grotthuss-type proton transfer mechanism. In addition, a structural transformation occurs at T > 70 °C accompanied by a remarkable enhanced conductivity. Studies on the structure-properties relationships will be discussed.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. MINECO: MAT2016-77648-R Junta Andalucía: P12-FQM-1656 y FQM-11

    Relación de la habilidad semántica y la comprensión lectora en niños y niñas de cinco años de la Institución Educativa Nº 314 del sector Rupacucha del distrito de Rioja en el año 2010

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    This pose investigation to determine the relationship of semantic skills and reading comprehension in children five years of School No. 314 of Rupacucha sector district Rioja in 2010. is has been considered a group of children 5 years, one educational institution by accidental sampling, according to the classification of Danhke, quoted by Hernández, Fernández and Baptista (2003), belongs to the type of correlational research with a predictive level. According to Hernandez, Fernandez and Baptista (2003), by trying to relate the semantic ability with reading comprehension, with correlational estranseccional research design, taking data at one time, in a single time concluding that the semantic skill is the ability to grant a meaning to a set word and it is necessary that the child has experiences with the outside world and while an adult help guide you with the proper lexicon to the elements already established their environment.La presente investigación planteo determinar la relación de la habilidad semántica y la comprensión lectora en niños y niñas de cinco años de la Institución Educativa Nº 314 del sector Rupacucha del distrito de Rioja en el año 2010. es decir se ha considerado a un grupo de niños y niñas de 5 años, de una sola Institución Educativa mediante el muestreo accidental, de acuerdo a la clasificación de Danhke, citado por Hernández, Fernández y Baptista (2003), pertenece al tipo de investigación correlacional con un nivel predictivo. Según Hernández, Fernández y Baptista (2003), por tratar de relacionar la habilidad semántica con la comprensión lectora, con diseño investigación estranseccional correlacional, tomando datos en un solo momento, en un tiempo único concluyendo que la habilidad semántica es la capacidad para otorgar un significado a una palabra establecida y es necesario que el niño tenga experiencias con su mundo exterior y a la vez que un adulto le oriente con el léxico adecuado a los elementos ya establecidos de su medio.Tesi

    New multifunctional sulfonato-containing metal phosphonates proton conductors

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    Anchoring of acidic functional groups to organic linkers acting as ligands in metal phosphonates has been demonstrate to be a valid strategy to develop new proton conductor materials, which exhibit tunable properties and are potentially applicable to proton exchange membranes, such as those used in PEMFCs [1,2]. In this work, the structural and proton conductivity properties of several families of divalent and trivalent metal amino-sulfophosphonates are presented. The chosen ligand, (H2O3PCH2)2-N-(CH2)2-SO3H, was reacted with the appropriate metal salt using highthrough-put screening and/or microwave-assisted synthesis. Different crystal structures haven been solved displaying a variety of metal ligand coordination modes, in whose frameworks acidic groups contribute to create strong H-bond networks; together with lattice and bound water molecules. Proton conductivity values oscillate between 10-4 and 10-2 S.cm-1, at 80 ºC and 95 % relative humidity, most of them showing activation energies characteristic of a Grotthuss-type proton transport mechanism.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. MINECO: MAT2016-77648-R Junta de Andalucía: P-12-FQM-1656 y FQM-11

    Transport Poverty with Special Reference to Sustainability: A Systematic Review of the Literature

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    The aim of this work is to analyse the state of the art of scientific research related to transport poverty with special reference to sustainability and to identify new research needs. To this end, a methodology has been used in line with the objective set out, choosing the systematic review of the literature as the most suitable method. The results show that transport poverty is an under-exploited issue and is not well articulated by researchers, and there are great differences between the different areas of knowledge studied. The subjects related to health and medicine have more publications, almost 58%, with the rest distributed among 11 different subjects. Of the works analysed, only 26.69% refer to the topic of sustainability, and therefore this is a branch which is little studied in the literature in this field. Another relevant finding is that all the articles analysed highlight the vulnerability and inequality of the groups affected by transport poverty, with the elderly being the least studied in the research work

    Early Risk Factors for Obesity in the First 1000 Days-Relationship with Body Fat and BMI at 2 Years

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    Background: Obesity is defined as an excessive accumulation of body fat. Several early developmental factors have been identified which are associated with an increased risk of childhood obesity and increased adiposity in childhood. The primary objective of the present study is to analyse the effect of various early risk factors on Body Mass Index (BMI) and body fat percentage at 2 years of age. (2) Methods: A prospective cohort study design was used, with the sample consisting of 109 mother-child pairs from whom data were collected between early pregnancy and 2 years old. Adiposity was determined based on skinfold measurements using the Brooks and Siri formulae. Mean comparison tests (Student's t-test and ANOVAs) and multiple linear regression models were used to analyse the relationship between early programming factors and dependent variables. (3) Results: Maternal excess weight during early pregnancy (beta = 0.203, p = 0.026), gestational smoking (beta = 0.192, p = 0.036), and accelerated weight gain in the first 2 years (beta = - 0.269, p = 0.004) were significantly associated with high body fat percentage. Pre-pregnancy BMI and accelerated weight gain in the first 2 years were associated with high BMI z-score (beta = 0.174, p = 0.047 and beta = 0.417, p = 0.000 respectively). The cumulative effect of these variables resulted in high values compared to the baseline zero-factor group, with significant differences in BMI z-score (F = 8.640, p = 0.000) and body fat percentage (F = 5.402, p = 0.002) when three factors were present. (4) Conclusions: The presence of several early risk factors related to obesity in infancy was significantly associated with higher BMI z-score and body fat percentage at 2 years of age. The presence of more than one of these variables was also associated with higher adiposity at 2 years of age. Early prevention strategies should address as many of these factors as possible.This study was supported by public funds, the ITI call (integrated territorial investment), developed by the Health Department of the Andalusian Government. The project has been 80% co-financed by funds from the FEDER operational program of Andalusia 2014-2020. Documen
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