Juan Hormaechea Cazón (21/07/1987 - 05/12/1990) (AP). Discurso de investidura: Sesión Plenaria número 2a, celebrada el día 22 de Julio de 1987

[spa] Juan Hormaechea Cazón se presentó en las listas de AP como independiente.[cat] Juan Hormaechea Cazón es va presentar a les llistes de l'AP com independent

Juan Hormaechea Cazón (02/07/1991 - 13/07/1995) (UPCA). Discurso de investidura: Sesión Plenaria número 2a, celebrada el día 2 de Julio de 1991

Abstract not availabl

Análisis del coste-efectividad de buprenorfina y metadona para el tratamiento de la dependencia de opiáceos en España: transferencia de un modelo económico desde el Reino Unido

A pesar de que la Buprenorfi na es una opción alternativa a la Metadona para el tratamiento de mantenimiento para la dependencia de opiáceos, la evidencia fármaco-económica en España es aún insufi ciente para extraer conclusiones sobre su fi nanciación pública. En el Reino Unido, el Instituto Nacional para la Salud y la Excelencia Clínica (NICE) publicó en 2007 una Guía de Práctica clínica que incluyó un análisis coste-efectividad de Buprenorfi na frente a Metadona desde la perspectiva del Sistema Nacional de Salud Británico. La transferencia geográfi ca de evaluaciones económicas realizadas en países diferentes tiene el potencial de facilitar la disponibilidad de información para un uso más efi ciente de los recursos sanitarios. Este estudio presenta un análisis coste-efectividad de Buprenorfi na frente a Metadona en España mediante la transferencia del modelo económico propuesto por el NICE en Reino Unido. Para ello, los datos de costes del modelo económico de referencia Británico se sustituyeron por datos nacionales. Al igual que en el modelo de referencia, el análisis económico con los datos españoles indicó que el tratamiento de mantenimiento con Metadona es más barato que el tratamiento con Buprenorfi na. Aunque la transferencia de modelos de evaluación económica es una tarea compleja y difícil, también ha demostrado que es factible en el ámbito de la evaluación económica de los trastornos por abuso de sustancias.Although Buprenorphine is an alternative to Methadone maintenance treatment for opiate addiction, drug-economic evidence in Spain is still insuffi cient to draw conclusions on its public funding. In the UK, the National Institute for Health and Clinical Excellence (NICE) published in 2007 a clinical practice guideline that included a cost-effectiveness of buprenorphine versus methadone from the perspective of the British National Health System. The geographical transfer of economic evaluations performed in different countries has the potential to facilitate the availability of information for more effi cient use of health resources. This study presents a cost-effectiveness of Buprenorphine versus Methadone in Spain through the transfer of the economic model proposed by NICE in the UK. To this end, the cost data of the economic model of reference data were replaced by Spanish costs. As in the reference model, the economic analysis with the Spanish data indicated that Methadone maintenance treatment is cheaper and than the treatment with Buprenorphine. Although the transfer of economic evaluation models is a complex and diffi cult task, it has proven to be feasible in the fi eld of economic evaluation of substance abuse disorders

Observations of an Unexpected Meteor Shower Outburst at High Ecliptic Southern Latitude and Its Potential Origin

A strong and unexpected meteor shower outburst was observed by the Southern Argentina Agile MEteor Radar Orbital System (SAAMER-OS) at high southern ecliptic latitude within the South Toroidal region. The outburst, which was active throughout solar longitudes 351° and 352°, peaked at 09:30 UT on 2020 March 12, has a mean Sun-centered ecliptic radiant of λ-λ 0 ∼ 307.°5 and β ∼-77.°2 and a geocentric velocity of 30.7 km s-1. Using the D′parameter criterion, we find the corresponding orbital elements of the outburst to match well with both the β Tucanid and δ Mensid meteor showers, suggesting these are in fact the same shower. We also find a promising parent candidate in asteroid (248590) 2006 CS, a large (D ∼ 2 km) highly inclined 52° near-Earth object.Fil: Janches, Diego. Nasa Goddard Space Flight Center; Estados UnidosFil: Bruzzone, Juan Sebastian. Nasa Goddard Space Flight Center; Estados UnidosFil: Weryk, Robert J.. University of Hawaii at Manoa; Estados UnidosFil: Hormaechea, José Luis. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Wiegert, Paul. Public Health Ontario; CanadáFil: Brunini, Claudio Antonio. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - la Plata. Laboratorio Geo - Aggo.; Argentin

An improved method to measure head echoes using a meteor radar

We present an improved methodology to obtain absolute position and velocity of meteor head echoes, which can yield orbital information, generally limited to the use of High-Power, Large-Aperture radars, using an advanced-designed specular meteor radar. The observations, which were performed during a period when an outburst of the β-Taurid meteor shower was expected, were performed with the Southern Argentine Agile MEteor Radar. Three different methodologies are utilized to confirm our results: an improved interferometric solver building on previous work, and two different target localization techniques using remote receiving stations. In addition, we performed simultaneous optical observations during the meteor shower period. Overall, 71 radar head echo events were detected and analyzed using interferometry, while 12 of those events have detected signals strong enough to be analyzed using localization methods at the remote sites. Due to poor weather, however, the optical cameras only observed two events simultaneously with the radar. Results from these events are in agreement with the radar results. We find that interferometry methods from both radar and optical data resulted in the most accurate estimation of meteor properties, while target localization techniques derived similar results, albeit with larger uncertainty. We also computed heliocentric meteoroid orbits, and while a fraction was hyperbolic, we believe these to be due to uncertainty. Two events are suspected to be β-Taurid shower members

Observation of the A Carinid Meteor Shower 2020 Unexpected Outburst

We present observations of the sudden outburst of the A Carinid meteor shower recorded with the Southern Argentina Agile MEteor Radar Orbital System (SAAMER-OS) near the south toroidal sporadic region. The outburst peaked between 21 UT and 22 UT on 2020 October 14 and lasted 7 days (199° ≤ λ ⊙ ≤ 205°), with a mean Sun-centered geocentric ecliptic radiant of λ g − λ ⊙ = 271.°04, β g = −76.°4, and a geocentric speed of 33.3 km s−1. Assuming a mass index value of s = 2.0, we compute a peak 24 hr average flux of 0.029 meteoroids km−2 hr−1 to a limit of 9th magnitude, which is equivalent to a zenithal hourly rate (ZHR) of 5.7 and comparable to other established showers with similar mass indices. By further estimating the peak fluxes for other typical mass index values, we find that the outburst likely never exceeded a maximum ZHR of ∼44, well below the activity of other strong showers. The mean orbital elements resemble those of a short-period object, a = 3.5 ± 0.1 au, q ≃ 1 au, e = 0.72 ± 0.02, i = 55.°8 ± 0.°3, ω = 1° ± 173°, and Ω = 21.°7, and are similar to those derived for two previous shower outbursts observed with SAAMER-OS at high southern ecliptic latitudes. Using the criterion did not reveal a parent object associated with this shower in the known object catalogs

A geological and geophysical crustal section across the Magallanes–Fagnano fault in Tierra del Fuego

Geophysical and geological field surveys carried out in the central and eastern part of the Argentinean Tierra del Fuego Island on the Magallanes–Fagnano fault system (MFS) delineate its main structural features and tectonic setting. Gravity and magnetic data provide critical information for those areas lacking good exposures and support a present-day transtensional tectonic regime for the MFS. In the surveyed area, the MFS segments have a clear morphological expression and are associated with localized gravity minima interpreted as pullapart basins. In the southeastern corner of Lago Fagnano, the magnetic data suggest a prominent crystalline body in the subsurface, partially exposed in Cerro Hewhoepen. The shape and position of this intrusive body suggest that its emplacement was localized in a releasing bend. Two-dimensional density modeling along a 40 km long N–S section east of Lago Fagnano suggests a deep duplex similar to that exposed in the western part of the island. The obtained model, combined with available surface data, implies the subsurface configuration of geological units and structures, in which the structure of the deep duplex is similar to that exposed in the western part of the Island. The model indicates the southward deepening of the basement from 5 to 7 km and provides further support for the piston shape of the Hewhoepen intrusive.Facultad de Ciencias Astronómicas y Geofísica

A status update on Southern Hemisphere Meteoroid Measurements with SAAMER

Hypervelocity meteoroid impacts are a risk to spacecraft operations. Mitigation of the meteoroid impact risk can be accomplished by implementing spacecraft designs that minimize the threat to critical systems, operational changes to the spacecraft orientation during mission operations, or a combination of both. Knowledge of the meteoroid threat in terms of mass-dependent flux (both rate and direction) is required in order to best implement the mitigation strategies. NASA’s Meteoroid Environment Office (MEO) assesses the risk posed to space assets by naturally occurring meteoroids, either from the sporadic background or meteors showers. Historically, most models used are based on monitoring the meteoroid environment in the Northern Hemisphere and only partially the Southern Hemisphere, leaving some potential threats without means to be catalogued. To address this gap, an effort to upgrade an existing radar facility in Southern Argentina is underway in order to develop the needed capability to provide the required data from the Southern Hemisphere.Facultad de Ciencias Astronómicas y Geofísica

Early mobilization after total hip or knee arthroplasty: a substudy of the POWER.2 study

Background Early mobilization after surgery is a cornerstone of the Enhanced Recovery After Surgery (ERAS) programs in total hip arthroplasty (THA) or total knee arthroplasty (TKA). Our goal was to determine the time to mobilization after this surgery and the factors associated with early mobilization. Methods This was a predefined substudy of the POWER.2 study, a prospective cohort study conducted in patients undergoing THA and TKA at 131 Spanish hospitals. The primary outcome was the time until mobilization after surgery as well as determining those perioperative factors associated with early mobilization after surgery. Results A total of 6093 patients were included. The median time to achieve mobilization after the end of the surgery was 24 hours [16–30]. 4,222 (69.3%) patients moved in ≤ 24 hours after surgery. Local anesthesia [OR = 0.80 (95% confidence interval [CI]: 0.72–0.90); p = 0.001], surgery performed in a self-declared ERAS center [OR = 0.57 (95% CI: 0.55–0.60); p < 0.001], mean adherence to ERAS items [OR = 0.93 (95% CI: 0.92–0.93); p < 0.001], and preoperative hemoglobin [OR = 0.97 (95% CI: 0.96–0.98); p < 0.001] were associated with shorter time to mobilization. Conclusions Most THA and TKA patients mobilize in the first postoperative day, early time to mobilization was associated with the compliance with ERAS protocols, preoperative hemoglobin, and local anesthesia, and with the absence of a urinary catheter, surgical drains, epidural analgesia, and postoperative complications. The perioperative elements that are associated with early mobilization are mostly modifiable, so there is room for improvement

Results from three GPS campaigns in Tierra del Fuego

During January and February 1990, 1991 and 1992 an important collaboration took place between the Rio Grande Astronomical Station (Estación Astronómica de Río Grande - EARG) and the Royal Institute and Observatory of the Spanish Navy (Real Instituto y Observatorio de la Armada de España - RIOA). Using RIOA GPS receivers a single base between one point in EARG (Rio Grande) and another point located at the Centro Austral de Investigaciones Científicas (CADIC, Ushuaia) was measured several times. Measured distances repetitivity is about 0.7 ppm (9 cm) and in components, 1 ppm. These results will permit the planning of an appropriate network to be measured with GPS which will contribute to the determination of crustal movements in the Tierra del Fuego region.En los meses de enero y febrero de los años 1990, 1991 y 1992 se realizó un trabajo de colaboración entre la Estación Astronómica Río Grande (EARG) y el Real Instituto y Observatorio de la Armada de España (RIOA). Con posicionadores GPS pertenecientes al grupo español se midió reiteradamente una misma base entre un punto situado en la EARG (Río Grande) y otro situado en el Centro Austral de Investigaciones Científicas (CADIC, Ushuaia). La repetitividad de las distancias medidas es del orden de 0.7 ppm (unos 9 cm) y en componentes, de 1 ppm. Esto permitirá planificar una red apropiada en la región fueguina para la determinación de movimientos tectónicos utilizando GPS.Material digitalizado en SEDICI gracias a la colaboración de la Facultad de Ciencias Astronómicas y Geofísicas (UNLP).Asociación Argentina de Geofísicos y Geodesta