966 research outputs found
Disentangling permanent and transitory monetary shocks with a nonlinear Taylor rule
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
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
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
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
Unusual Manifestation of Toscana Virus Infection, Spain
This study was supported in part by project 05/305, Junta de Andalucía, SpainYe
El ingreso a la cultura escrita en el grado transición : supuestos y enfoques en situaciones didácticas de una práctica destacada
Licenciado (a) en Pedagogía InfantilPregrad
New multifunctional sulfonato-containing metal phosphonates proton conductors
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
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
Splitting of the middle layer of LPW SAFNWC/MSG satellite product in order to improve the monitoring of pre-convective environments
Seven of the infrared channels from the Spinning Enhanced Visible and Infrared Imagery (SEVIRI)
instrument, on board the Meteosat Second Generation (MSG), are used to retrieve Layer Precipitable Water (LPW) and Stability Analysis Imagery (SAI) in the SAFNWC framework. Both products are retrieved using a statistical retrieval based on neural networks; they are routinely generated every fifteen minutes at a satellite horizontal resolution of 3 km in NADIR only in cloud-free areas.
Many factors are involved in the development of severe weather and these parameters are only some of the indicators. However, due to the high resolution of these products, the use of them in conjunction with satellite and radar images can help to identify mesoscale features related to convection. The MSG moisture and parcel instability time trend fields are especially useful during the period previous to convection. Once the outbreak of convection occurs, the products calculated in the clear air pixels surrounding the convective system can give us hints to anticipate its evolution.
SAFNWC LPW and SAI were analyzed for a severe weather event during August 2004. A thunderstorm
over Teruel (Spain) produced intense precipitation and hail; a tornado developed while this thunderstorm was moving towards SE. The pre-convective parcel potential buoyancy and moisture SAFNWC products changed in a way that was consistent with the observed intense convective activity. In previous studies, the atmospheric moisture in medium levels, which has been proven to be relevant in some cases, was represented by only one level parameter (ML: middle layer LPW). However, it was observed that this layer is too thick to do an adequate analysis of moisture available for convection. Hence, an improvement on the LPW algorithm has been carried out by splitting the middle layer into two new sub-layers (approximately separated at 700 hPa) and training two new neural networks. The impact of monitoring moisture in the new sub-layers separately in this severe weather event has been tested, and the improvements achieved have been evaluated
- …